CN111890134A - Reliability test device for ultrasonic machining vibration system - Google Patents
Reliability test device for ultrasonic machining vibration system Download PDFInfo
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- CN111890134A CN111890134A CN202010594881.XA CN202010594881A CN111890134A CN 111890134 A CN111890134 A CN 111890134A CN 202010594881 A CN202010594881 A CN 202010594881A CN 111890134 A CN111890134 A CN 111890134A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
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Abstract
The invention discloses a reliability test device for an ultrasonic machining vibration system, which solves the problem of reliability test of loading and detection of the tested ultrasonic machining vibration system and comprises a bracket part, a loading part and a material supply part; the bracket part comprises a main bracket, a bracket base, 6 sets of upper cantilever brackets and 6 sets of lower telescopic brackets; the support base is arranged at the right end of a horizontal iron in the material supply part, the main support is arranged on the support base through 6 vertical upright posts and is in sliding connection with the support base, one end of the 6 sets of upper cantilever supports is fixed on the 6 vertical upright posts, and one end of the 6 sets of lower telescopic supports is fixed on the 6 vertical upright posts below the 6 sets of upper cantilever supports; the analog loading system of the loading part is arranged on a ground flat iron in the bracket base; a computer, a controller and a data acquisition card in the material supply part are arranged on a foundation outside the ground iron, other parts are arranged on the ground iron on the left side of the bracket base, and the ground iron is arranged on the bottom in the constant temperature and humidity test box.
Description
Technical Field
The invention relates to a test device applied to the field of reliability of ultrasonic machine tool systems, in particular to a test device capable of testing the reliability of an ultrasonic machining vibration system.
Background
In recent decade, with the development of science and technology, the development of ultrasonic technology is extremely rapid, and the ultrasonic technology is applied to the fields of aviation, navigation, national defense, electronics and the like, and plays an increasingly important role in national economic construction in China. The ultrasonic technology has become a high-tech field recognized internationally, and related technical products relate to new technologies such as vibration, electronics, machinery, materials and the like. Currently, ultrasound technology is going deep into many scientific fields and production departments, and is continuously developing to solve many problems in daily life and production technology.
The ultrasonic processing method is a novel processing method which is gradually developed in nearly 40 years, not only can be used for processing hard and brittle metal materials such as hard alloy, quenched steel and the like, but also is more suitable for precision processing and forming processing of semiconductors and non-conductive non-metallic hard and brittle materials (such as semiconductor silicon wafers, germanium wafers, ceramics, glass and the like). In difficult processing materials and precision machining, the ultrasonic machining method has incomparable technological effect compared with common machining and wide application range.
The ultrasonic processing equipment generally comprises an ultrasonic generator, an ultrasonic processing vibration system (comprising a transducer, an amplitude transformer and a processing tool), an ultrasonic processing machine tool body and an abrasive suspension cooling system.
During processing, a high-frequency electric vibration signal of 16-20 kHz is generated by the ultrasonic generator and is converted into mechanical vibration through the transducer, the amplitude of the mechanical vibration is small and is about 0.005-0.01 mm, and the ultrasonic vibration cannot be directly used for ultrasonic processing. The sample is amplified to about 0.01-0.1 mm by an amplitude transformer (also called an energy concentrator) and then transmitted to a tool. The tool is typically attached to the lower end of the horn by welding, and the space between the tool tip and the workpiece is filled with an abrasive suspension of a liquid (water or kerosene) mixed with an abrasive (silicon carbide or boron carbide). The tool acts on the workpiece with a certain pressure, and the abrasive particles suspended in the working fluid continuously impact and polish the surface of the workpiece to be processed at a high speed under the ultrasonic vibration of the tool. The acceleration of the abrasive striking the surface of the workpiece can reach 10 of the gravity acceleration4Thus causing a large local unit area pressure on the surface to be processed, and causing local material deformation of the workpiece; when the strength limit is reached, the material is destroyed, broken down into particularly fine particles and carried away by the circulating abrasive suspension.
Meanwhile, the suspension working fluid is subjected to the ultrasonic vibration action of the end part of the tool to generate hydraulic impact and cavitation. The cavitation is that when the end face of the tool leaves the surface of the workpiece with great acceleration, negative pressure and partial vacuum are formed in the machining gap, and a plurality of micro cavities are formed in the working liquid, so that the working liquid is promoted to penetrate into microcracks on the surface material of the workpiece to be machined. When the end face of the tool approaches the surface of the workpiece at a high acceleration, the cavity is closed, so that a strong hydraulic shock wave is generated, and the crushing effect of the abrasive on the surface of the workpiece is accelerated. As the abrasive suspension is continuously circulated, the abrasive particles are continuously renewed and the machined debris is continuously removed. In summary, under the combined action of impact and polishing of the free abrasives and cavitation erosion of the abrasive suspension, a cavity corresponding to the tool geometry is finally machined in the workpiece.
During ultrasonic machining, the acting force between a tool and a workpiece is small, and the machining tool only needs to realize the work feed motion of the tool and the motion of adjusting the relative position between the tool and the workpiece, so that the machine tool has a simpler structure and generally comprises a frame for supporting a vibration system, a working table surface, a feeding mechanism, a machine body and the like. The tool is fed downwards and applies pressure to the workpiece by means of dead weight, and in order to regulate the pressure, a balance weight capable of being increased and decreased is set behind the machine tool, and in addition, there are weight lever loading, spring clamping loading, hydraulic or pneumatic loading and other pressurizing modes.
Ultrasonic generators are an important component of ultrasonic equipment and are responsible for the task of providing ultrasonic frequency electrical energy to ultrasonic transducers. In ultrasonic machining vibration systems, in order to obtain maximum amplitude for improved machining efficiency, it is required not only that the electrical energy supplied by the generator has sufficient power, but also that its frequency coincides with the resonant frequency of the transducer vibration system. However, in actual work, due to the influence of many factors such as the temperature, the rigidity, the static load, the processing area, the tool abrasion and the like of the ultrasonic vibration system, the parameters of the ultrasonic vibration system are changed.
Transducers are devices that convert energy, and are devices that convert one form of energy to another. In the field of acoustic research, transducers are mainly referred to as electroacoustic transducers, which can realize interconversion between electric energy and acoustic energy. In ultrasonic machining, a transducer is used for converting an ultrasonic frequency electric oscillation signal into ultrasonic frequency mechanical vibration, and is one of key parts of ultrasonic equipment.
The horn is usually screwed to the lower end of the transducer, and in order to obtain a large amplitude, the natural frequency of the horn is equal to the vibration frequency of the generator and the transducer, and the horn is in resonance. The horn flexes many thousands of times per second under the high frequency vibrations of the transducer, so the horn is subject to high frequency cyclic loads.
The mechanical vibration of the ultrasonic wave is amplified by the amplitude transformer and then transmitted to the tool, and the abrasive suspension is hit by the end face of the tool, so that the abrasive particles and the working fluid impact the workpiece with certain energy, and a certain size and shape are processed. The tool is used as the load of the amplitude transformer, the structural size, the mass and the quality of connection with the amplitude transformer have great influence on the ultrasonic vibration resonance frequency and the working performance, and also have great influence on the processing precision and the quality of the processed surface.
The tool may be attached to the horn by brazing, threading, or a wedge pin, or alternatively, the tool may be machined directly into the horn. The bolt connection is widely used because of convenient and easy disassembly, but the problems of looseness, sound energy loss, easy breakage and the like can occur in the long-time vibration process.
The sonotrode and the sonotrode system are the key to the generation of high frequency vibrations of the tool and the abrasive, and therefore these two parts are often referred to together as the sonotrode and the sonotrode system. However, there is no reliability test stand designed for failures that may occur with ultrasonic machining vibration systems.
In summary, it is necessary to design a reliability test bed for an ultrasonic processing vibration system composed of an ultrasonic generator, a transducer, a horn and a tool to perform a special reliability test.
The invention provides a device for carrying out reliability test by loading and detecting an ultrasonic processing vibration system according to the actual use working condition of an ultrasonic processing machine tool. The reliability test method can be used for carrying out reliability test on the ultrasonic processing vibration system of the ultrasonic processing machine tool, can discover the fault point of the ultrasonic processing vibration system as soon as possible, eliminate the fault in time, improve the design, provide basic fault data for the reliability increase and reliability evaluation of the ultrasonic processing machine tool, and is also beneficial to improving the screening capability of machine tool enterprises on outsourcing parts.
Disclosure of Invention
The invention aims to solve the technical problem of reliability test of loading and detection of an ultrasonic machining vibration system to be tested, and provides a reliability test device of the ultrasonic machining vibration system.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: the ultrasonic machining vibration system reliability test device comprises a bracket part, a loading part and a material supply part;
the bracket part comprises a main bracket, a bracket base, 6 sets of upper cantilever brackets with the same structure and 6 sets of lower telescopic brackets with the same structure;
the loading part comprises a simulation loading system and a constant temperature and humidity test box;
the support base is arranged at the right end of a ground flat iron in the material supply part, the main support is arranged in 6 guide sliding grooves with the same structure on the support base through 6 vertical upright columns with the same structure, the two vertical upright columns are in sliding connection, one end of each of 6 sets of upper cantilever supports with the same structure is fixed on the 6 vertical upright columns with the same structure through screws, one end of each of 6 sets of lower telescopic supports with the same structure is fixed on the 6 vertical upright columns with the same structure through screws, and the 6 sets of upper cantilever supports with the same structure are arranged above the 6 sets of lower telescopic supports with the same structure; the analog loading system is arranged on a ground flat iron in the bracket base; the computer, the controller and the data acquisition card in the material supply part are arranged on a foundation outside the constant temperature and humidity test box, other parts in the material supply part are arranged on a ground flat iron on the left side of the bracket base, the ground flat iron is arranged on the bottom in the constant temperature and humidity test box, and the distance between the four sides of the ground flat iron and the four walls of the constant temperature and humidity test box is 10 cm.
The main bracket in the technical scheme comprises 6 vertical upright posts with the same structure and 6 cross beams with the same structure, wherein the 6 vertical upright posts with the same structure and the 6 cross beams with the same structure are all rectangular rod type structural members with the same cross section, and the length and width of the cross sections of the 6 vertical upright posts with the same structure and the 6 cross beams with the same structure are equal; the 6 vertical columns with the same structure are respectively provided with 2 sections of rectangular stepped through holes, the width of a first section of rectangular hole at the inner side is larger than that of a second section of rectangular hole at the outer end, the length of the first section of rectangular hole is equal to that of the second section of rectangular hole, the longitudinal symmetrical surfaces of the first section of rectangular hole and the second section of rectangular hole are coplanar and coplanar with the longitudinal symmetrical surface of the vertical column, the width of the first section of rectangular hole is equal to that of one end of an upper cantilever support with the same 6 sets of structures, the width of the first section of rectangular hole is equal to that of one end of a lower telescopic support with the same 6 sets of structures, one end of the upper cantilever support with the same 6 sets of structures is in sliding fit with one end of a lower telescopic support with the same 6 sets of structures and the first section of rectangular hole, the vertical columns with the same 6 structures are distributed in space as 6 edges of a regular hexahedron, and the top ends of the vertical columns with the same 6 structures are welded and connected with one, the other ends of the 6 cross beams with the same structure are welded together, and the 6 vertical upright columns with the same structure are vertical to the 6 cross beams with the same structure.
According to the technical scheme, the support base is a circular ring-shaped structural member, 6 guide sliding grooves which are identical in structure and can enable 6 vertical upright posts in the main support to vertically slide up and down and have equal cross sections are uniformly and vertically arranged on the inner wall of the support base along the circumferential direction, the structural size of the cross section of each guide sliding groove on the support base is equal to that of the cross section of each vertical upright post in the main support, and the cross section of each guide sliding groove is a rectangular cross section.
The upper cantilever support in the technical scheme comprises an upper cantilever beam, a strong magnetic disc, an iron disc, a No. 1 fixing screw and a No. 2 fixing screw; the upper cantilever beam is a straight rod piece with a variable-torque cross section, or the upper cantilever beam is a wedge-shaped rod piece with a variable-rectangular cross section, two threaded holes are uniformly formed in the end face of the large end of the upper cantilever beam along the longitudinal direction, a fixing screw 1 and a fixing screw 2 which are used for fixing the upper cantilever beam on a vertical stand column in a main support are installed in the two threaded holes, the width of the large end of the upper cantilever beam is equal to the width of a first section of rectangular hole of a 2-section stepped through hole in the vertical stand column, an iron disc is fixed to the other end of the upper cantilever beam, the top end face of a strong magnetic disc is fixedly adsorbed to the bottom end face of the iron disc, the top end face of the iron disc is fixedly adsorbed to the bottom end face of the strong magnetic disc, the iron disc, the strong magnetic disc is collinear with the rotation axis of the iron disc, and the diameter and the thickness of the strong magnetic disc.
The lower telescopic bracket in the technical scheme comprises a lower telescopic rod, a sensor fixing rod, an eddy current sensor, a No. 3 fixing screw and a No. 4 fixing screw; the lower telescopic rod is a straight rod piece with a long strip-shaped equal-rectangular cross section, and a guide limiting chute which is provided with a No. 3 fixing screw and is through up and down is arranged on the longitudinal symmetrical line of the lower telescopic rod; the center of the end face of one end of the lower telescopic rod is longitudinally provided with a threaded hole for mounting a No. 4 fixing screw, the width of the lower telescopic rod is equal to that of a first section of rectangular hole of a 2-section stepped through hole on a vertical upright post in the main bracket, and the other end of the lower telescopic rod adopts a No. 3 fixing screw and is fixedly connected with one end of a sensor fixing rod through a guide limiting sliding groove on the lower telescopic rod; the eddy current sensor is arranged at the other end of the sensor fixing rod.
The simulation loading system in the technical scheme comprises a simulation workpiece under test, a simulation workpiece to be tested, a test disc, a gearbox, a servo motor and a test disc bracket; the rotation axes of the on-test simulation workpiece and the standby simulation workpiece are respectively superposed with the rotation axes of the small circular grooves on the test disc, and the abrasive suspension is added into the test disc; the test disc is connected with a gearbox key through a transmission shaft at the bottom end of the test disc, the gearbox is fixedly connected with the servo motor, and the gearbox and the servo motor are fixed on a ground flat iron through bolts.
According to the technical scheme, the test disc is a disc-shaped structural member, a large circular groove is formed in the top end of the test disc, the rotation center line of the large circular groove coincides with the rotation center line of the test disc, 2 small circular grooves with the same structure are arranged in the large circular groove, the 2 small circular grooves with the same structure are symmetrically arranged relative to the rotation center line of the large circular groove, a circular groove used for installing a test disc support is formed in the bottom end of the test disc, the circular groove coincides with the rotation center line of the test disc, a circular section transmission shaft is arranged in the center of the bottom end face of the test disc, the rotation center line of the transmission shaft coincides with the rotation center line of the test disc, and a key groove is formed in the end portion of the transmission shaft.
The test disc bracket in the technical scheme comprises 1 support ring and 4 struts with the same structure; the support ring is a circular ring-shaped structural part with an equal rectangular cross section, the diameter of the inner circle of the support ring is equal to the diameter of the outer circle of the support ring and the inner diameter and the outer diameter of a circular ring-shaped groove arranged at the bottom end of the test disc, and the rotation center line of the support ring is collinear with the rotation center line of the circular ring-shaped groove; the supporting columns are straight rod type structural parts with equal rectangular cross sections, the length and width of the supporting columns with the equal rectangular cross sections are smaller than the width of the supporting ring in the radius direction, the 4 supporting columns with the same structures are uniformly arranged on the bottom end face of the supporting ring along the circumferential direction, the 4 supporting columns with the same structures are perpendicular to the supporting ring, and the top ends of the 4 supporting columns with the same structures are connected with the bottom end face of the supporting ring in a welding mode.
The material supply part in the technical scheme also comprises 9 simulation workpieces, a manipulator and a material table;
the 9 simulation workpieces are completely the same as the simulation workpieces under test and the simulation workpieces to be tested in shape, size, structure and material, and are iron discs; the manipulator adopts a Bertant six-axis intelligent industrial manipulator with the model number of BRTIRUS1510A, and the arm spread is 1500 mm; the material table consists of 4 rectangular stand columns with the same structure and a rectangular plate type desktop, the rectangular stand columns are straight rod type structural members with equal sections, and the top ends of the 4 rectangular stand columns with the same structure are connected with the four corners of the bottom end face of the rectangular plate type desktop in a welding mode; 9 grooves which are equal to the outline of the simulation workpiece in size and have the depth of 0.5cm are uniformly distributed on the rectangular plate type tabletop, and the material table is placed on the ground flat iron by the self gravity; the ground flat iron is a rectangular plate type structural member provided with T-shaped grooves which are parallel to each other, and the length and width of the ground flat iron are 10cm shorter than those of the inner cavity of the constant temperature and humidity test box; the computer is a desktop computer with Deler XPS 8930; the controller is a product matched with the servo motor; the model of the servo motor is 110AEA 18030-SH 3, the controller is connected with the servo motor through a matched servo power line and an encoder line, the controller is connected with the computer through a wired RS232 standard interface, and the controller is arranged on one side of the computer;
the data acquisition card is a data acquisition card with the model number of USB3200, the data acquisition card is connected with a computer through a USB interface, and the data acquisition card is placed on the controller; the manipulator is installed in the left side of support base, and 9 simulation work pieces are placed on the material platform, and the material platform is installed in the left side of manipulator, and material platform, manipulator and support base arrange from a left side to the right side along the vertical of horizon iron in proper order.
Compared with the prior art, the invention has the beneficial effects that:
1. the reliability test device for the ultrasonic machining vibration system adopts the constant temperature and humidity test box, so that the tested ultrasonic machining vibration system can be loaded in different temperature, humidity and vibration environments, the load of the ultrasonic machining vibration system in different working condition working states is simulated, and the variable parameter reliability test of the ultrasonic machining vibration system is realized;
2. the reliability test device for the ultrasonic processing vibration system adopts the structure that one surface of a strong magnetic disc is adsorbed on the disc of a main bracket, and the other surface of the strong magnetic disc is adsorbed on an iron sheet connected with a transducer, so that the ultrasonic processing vibration system is convenient to disassemble;
3. the reliability test device for the ultrasonic machining vibration system adopts six support structures with the same structure, can simultaneously carry out reliability test on a plurality of same or different ultrasonic machining vibration systems, and realizes a contrast test;
4. the reliability test device for the ultrasonic machining vibration system adopts the support which can move up and down to connect the ultrasonic machining vibration system, the sensor is arranged on the lower telescopic rod which can stretch out and draw back in the radial direction, and the lower telescopic rod can move up and down, so that the reliability test can be simultaneously carried out on a plurality of different ultrasonic vibration systems, the multi-sample reliability test of the ultrasonic machining vibration system is realized, and the flexibility and the universality are realized;
5. the reliability test device for the ultrasonic machining vibration system, provided by the invention, is provided with an automatic control system, so that the labor intensity can be reduced, the device can automatically run for a long time in an unattended state, the product fault can be exposed and excited, and practical basic data can be provided for the reliability increase and evaluation of the product.
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is an axonometric view of the structural components of the device for testing the reliability of an ultrasonic machining vibration system according to the present invention;
FIG. 2 is an axonometric view of the structural components of the support part used in the device for testing the reliability of the ultrasonic machining vibration system according to the present invention;
FIG. 3 is an axonometric view of the upper cantilever support structure used in the apparatus for testing the reliability of an ultrasonic machining vibration system according to the present invention;
FIG. 4 is an axonometric view of the lower telescopic bracket structure used in the apparatus for testing reliability of ultrasonic machining vibration systems according to the present invention;
FIG. 5 is an isometric projection view of the structural components of the ultrasonic machining vibration system to be tested by the ultrasonic machining vibration system reliability testing apparatus of the present invention;
FIG. 6 is an axonometric view of the loading part structure used in the device for testing the reliability of the ultrasonic machining vibration system according to the present invention;
in the figure: 1. the test device comprises a main support, 2, a support base, 3, an upper cantilever support, 301, an upper cantilever beam, 302, a strong magnetic disc, 303, an iron disc, 304.1 fixing screws, 305.2 fixing screws, 4, a lower telescopic support, 401, a lower telescopic rod, 402, a sensor fixing rod, 403, an eddy current sensor, 404.3 fixing screws, 405.4 fixing screws, 5, an ultrasonic processing vibration system, 501, an ultrasonic generator, 502, a transducer, 503, an amplitude transformer, 504, a tool, 6, a simulation loading system, 601, a test simulation workpiece, 602, a test simulation workpiece, 603, a test disc, 604, a gearbox, 605, a servo motor, 606, a test disc support, 7, a constant temperature and humidity test box, 8, a simulation workpiece, 9, a manipulator, 10, a material table, 11, a horizon iron, 12, a computer, 13, a controller and 14, and a data acquisition card.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
practice proves that faults of an ultrasonic machining vibration system in an ultrasonic machining machine tool are common, the faults generally occur on an ultrasonic generator 501, a transducer 502 and a horn 503, and the abrasion of a tool 504 can also influence the machining precision and reduce the machining performance; typical failure modes are: the performance of the ultrasonic generator 501 is degraded, the transducer 502 is affected with damp, the vibrator is ignited and degummed, the stainless steel vibration surface is perforated, the amplitude transformer 503 is damaged by fatigue, the frequency is deviated, and the like. Therefore, it is necessary to improve the ultrasonic machining vibration system 5 in view of the above problems, and before the improvement, the failure should be found first, and the reliability test can effectively excite and expose the failure. According to the requirement of a reliability test, the real working condition of the ultrasonic processing vibration system needs to be simulated as much as possible to apply load; the reliability test device is required to be capable of automatically running because the reliability test time is long and the manual long-time observation cannot be carried out; one reliability test device can test a plurality of sets of ultrasonic machining vibration systems, so that the ultrasonic machining vibration system to be tested is convenient to replace in the reliability test device, and meanwhile, the ultrasonic machining vibration system to be tested is reasonable in layout in the reliability test device; the method for performing the reliability test on the ultrasonic machining vibration system to be tested is reasonable and effective.
In summary, to complete the testing task for the ultrasonic machining vibration system to be tested, the following problems need to be solved:
1. automatic running of the test;
2. loading the ultrasonic machining vibration system to be tested;
3. collecting performance parameters of a tested ultrasonic machining vibration system and detecting faults;
4. the ultrasonic processing vibration system to be tested is used for realizing a multi-sample reliability test;
5. the ultrasonic processing vibration system to be tested is used for realizing a variable parameter reliability test;
6. disassembly, assembly and arrangement of the ultrasonic machining vibration system to be tested;
the invention aims to provide a reliability test device for an ultrasonic machining vibration system, which is convenient and practical and is convenient to disassemble and assemble.
Referring to fig. 1 and 2, the support portion includes a main support 1, a support base 2, and a set of upper cantilever supports 3 and a set of lower telescopic supports 4 with the same structure as the upper cantilever supports 6 and 6;
the main support 1 comprises 6 vertical columns with the same structure and 6 cross beams with the same structure, the 6 vertical columns with the same structure and the 6 cross beams with the same structure are all rectangular rod type structural members with the same cross section, and the length and width dimensions of the cross sections of the 6 vertical columns with the same structure and the 6 cross beams with the same structure are equal; the 6 vertical columns with the same structure are respectively provided with 2 sections of rectangular stepped through holes, the width of a first section of rectangular hole at the inner side is larger than that of a second section of rectangular hole at the outer end, the length of the first section of rectangular hole is equal to that of the second section of rectangular hole, the longitudinal symmetrical surfaces of the first section of rectangular hole and the second section of rectangular hole are coplanar, one end of an upper cantilever support 3 with the same 6 sets of structures and one end of a lower telescopic support 4 with the same 6 sets of structures are assembled in the first section of rectangular hole of the 2 sections of rectangular stepped through holes, one end of the upper cantilever support 3 with the same 6 sets of structures and one end of the lower telescopic support 4 with the same 6 sets of structures can freely move up and down in the first section of rectangular hole, the 2 sections of rectangular stepped through holes play a role in guiding and limiting, the 6 vertical columns with the same structures are distributed in space as 6 edges of a regular hexahedron, the top ends of the 6 vertical upright columns with the same structure are welded with one ends of the 6 cross beams with the same structure, the other ends of the 6 cross beams with the same structure are welded together, and the 6 vertical upright columns with the same structure are mutually vertical to the 6 cross beams with the same structure;
Referring to fig. 3, the upper cantilever support 3 includes an upper cantilever beam 301, a strong magnetic disc 302, an iron disc 303, a number 1 fixing screw 304, and a number 2 fixing screw 305.
Referring to fig. 4, the lower telescopic bracket 4 includes a lower telescopic rod 401, a sensor fixing rod 402, an eddy current sensor 403, a number 3 fixing screw 404, and a number 4 fixing screw 405.
The lower telescopic rod 401 is a straight rod piece with a long strip-shaped equal-rectangular cross section, an upper and lower through guide limiting sliding groove is formed in the longitudinal symmetrical line of the lower telescopic rod 401, and the sensor fixing rod 402 can be fixed at any position of the guide limiting sliding groove on the lower telescopic rod 401 by using a No. 3 fixing screw 404; the center department of lower telescopic link 401 one end terminal surface vertically is provided with the screw hole along vertically, the width of lower telescopic link 401 equals with the width in the first section rectangular hole of 2 sections formula ladder through-holes on the vertical stand, the one end of lower telescopic link 401 adopts No. 4 set screw 405 to fix in vertical stand 2 sections formula ladder through-holes in main support 1, during No. 4 set screw 405 of unscrewing, the one end of lower telescopic link 401 can reciprocate in 2 sections formula ladder through-holes on the vertical stand, the other end of lower telescopic link 401 adopts No. 3 set screw 404 and the one end fixed connection of sensor dead lever 402.
The sensor fixing rod 402 is a long strip-shaped straight rod piece with a rectangular uniform cross section, a threaded hole matched with the No. 3 fixing screw 404 is formed in one end of the sensor fixing rod 402, and an eddy current sensor 403 is installed at the other end of the sensor fixing rod 402; the end face of the eddy current sensor 403 is spaced 1mm from the bottom end face of the horn 503 by adjusting the fixing position of the number 4 fixing screw 405 on the vertical pillar in the main stand 1.
The eddy current sensor 403 is a standard component, and is an asahi YXS-DW series eddy current sensor.
Each vertical upright post provided with 2-section type rectangular stepped through holes is fixed with a set of upper cantilever support 3 and a lower telescopic support 4, and the upper cantilever support 3 is arranged above the lower telescopic support 4.
The main bracket 1 adopting the above structure can solve the following problems:
the problem of the realization that the ultrasonic machining vibration system of being examined carries out many samples reliability test is solved:
each vertical upright post of the six vertical upright posts on the main support 1 can be fixed with a set of upper cantilever supports 3 and a set of lower telescopic supports 4, and the upper cantilever supports 3 and the lower telescopic supports 4 can move up and down along the 2-section rectangular step through holes on the vertical upright posts and are fixed at proper positions; the sensor fixing rod 402 in the lower telescopic bracket 4 drives the eddy current sensor 403 to move along the guide limiting sliding groove on the lower telescopic rod 401, so that the eddy current sensor 403 can detect different ultrasonic processing vibration systems 5; therefore, one set of ultrasonic processing vibration system 5 can be tested on each vertical upright column, and the main support 1 can simultaneously test the reliability of 6 sets of ultrasonic processing vibration systems 5 at most.
The problems of disassembly, assembly and arrangement of the tested ultrasonic processing vibration system are solved:
the bottom end face of an iron disc of the upper cantilever beam 301 can be fixedly connected with the top end face of a strong magnetic disc 302 in an adsorption manner, the bottom end face of the strong magnetic disc 302 is fixedly connected with the top end face of an iron disc 303 in an adsorption manner, an ultrasonic processing vibration system 5 consisting of a transducer 502, an amplitude transformer 503 and a tool 504 can be arranged on the iron disc 303, and the transducer 502 and the iron disc 303 can be glued or fixedly connected by bolts and nuts. The ultrasonic generator 501 is placed on the ground iron 11.
Referring to fig. 1 and 6, the loading part includes a simulation loading system 6 and a constant temperature and humidity test chamber 7.
The simulation loading system 6 comprises a simulation workpiece 601 to be tested, a simulation workpiece 602 to be tested, a test disc 603, a gearbox 604, a servo motor 605 and a test disc bracket 606;
the simulation workpiece 601 to be tested and the simulation workpiece 602 to be tested are completely the same in shape, size, structure and material, and are iron disks. In one test, a user can select different materials for testing according to different test purposes;
the test disc 603 is a disc-shaped structural member, a large circular groove is arranged at the top end of the test disc 603, the rotation center line of the large circular groove coincides with the rotation center line of the test disc 603, 2 small circular grooves with the same structure are arranged in the large circular groove, and the 2 small circular grooves with the same structure are symmetrically arranged relative to the rotation center line of the large circular groove, namely symmetrically arranged relative to the rotation center line of the test disc 603. The bottom end face of the test disc 603 is provided with a circular groove, the circular groove is coincident with the rotation center line of the test disc 603, a test disc support 606 can be assembled in the circular groove, and the circular groove serving as a guide groove can enable the test disc 603 to stably rotate around the rotation center line. The center of the bottom end face of the test disc 603 is provided with a transmission shaft with a circular cross section, the rotation center line of the transmission shaft coincides with the rotation center line of the test disc 603, the rotation center line of the transmission shaft is collinear with the rotation center line of the circular groove, the end part of the transmission shaft is provided with a key slot, the end part of the transmission shaft is inserted into an output shaft hole on the gearbox 604, and the end part of the transmission shaft is matched with the gearbox 604 and is connected with the gearbox.
The test disc holder 606 includes 1 support ring and 4 supports having the same structure.
The support ring is a circular ring-shaped structural member with an equal rectangular cross section, the inner circle diameter and the outer circle diameter of the support ring are equal to the inner diameter and the outer diameter of a circular ring-shaped groove formed in the bottom end face of the test disc 603, namely the rotation center line of the support ring is collinear with the rotation center line of the circular ring-shaped groove, and the support ring is assembled in the circular ring-shaped groove and freely rotates in the circular ring-shaped groove.
The supporting columns are straight rod type structural members with the same rectangular cross section, and the length and width of the supporting columns with the same rectangular cross section are smaller than the width of the supporting rings in the radius direction.
The 4 pillars with the same structure are uniformly arranged on the bottom end face of the support ring along the circumferential direction, the 4 pillars with the same structure are vertical to the support ring, the top ends of the 4 pillars with the same structure are connected with the bottom end face of the support ring in a welding mode, and the test disc support 606 is fixed on the ground flat iron 11 through the 4 pillars with the same structure by means of self weight.
The grinding material suspension liquid is prepared by adopting water as working solution and selecting proper grinding materials such as aluminum oxide, boron carbide, silicon carbide and carborundum according to different test purposes;
the speed changing box 604 adopts a worm gear speed reducer (25 mm of an output shaft hole) with the model number of NMRV090, the transmission ratio is 1:100, the speed changing box is arranged below the test disc 603 and is fixed on the ground flat iron 11 by adopting bolts, the output shaft hole of the speed changing box 604 is assembled with a transmission shaft at the center of the bottom end face of the test disc 603, and the speed changing box and the test disc are in key connection.
The servo motor 605 adopts a servo motor with the model number of 110, and the servo motor 605 is assembled with the gearbox 604 and fixed on the ground flat iron 11 by bolts;
the constant temperature and humidity test box 7 is an aigrette LGD-3360 type walk-in constant temperature and humidity test box, and the size W (width) of the inner box is 4000mm multiplied by H (height) 2100mm multiplied by D (length) 4000 mm; the ground flat iron 11 is arranged on the bottom of the constant temperature and humidity test box 7, and the distance between the four sides of the ground flat iron 11 and the four walls of the constant temperature and humidity test box 7 is 10 cm.
In the test simulation workpiece 601 and the test simulation workpiece 602 which are placed in 2 small circular grooves with the same structure on the test tray 603, the rotation axes of the test simulation workpiece 601 and the test simulation workpiece 602 are respectively superposed with the rotation axis of the small circular groove on the test tray 603, and the abrasive suspension is added into the test tray 603, so that the abrasive suspension does not overflow the test tray 603 after passing through the test simulation workpiece 601; the test disc 603 is connected with a gearbox 604 in a key way through a transmission shaft at the bottom end of the test disc, and the gearbox 604 is connected with a servo motor 605; the servo motor 605 drives the gear box 604 to rotate, and further drives the test disc 603 to rotate, the gear box 604 and the servo motor 605 are fixed on the ground flat iron 11 by bolts, and the parts except the computer 12, the controller 13 and the data acquisition card 14 are all placed in the constant temperature and humidity test box 7.
The analog loading system 6 with the structure can solve the following problems:
the loading problem of the ultrasonic processing vibration system to be tested is solved:
abrasive suspension is added between a test simulation workpiece 601 and a tool 504, ultrasonic oscillation waves are generated by an ultrasonic generator 501 and are converted into ultrasonic mechanical vibration by a transducer 502, an amplitude transformer 503 enables the tool 504 to generate ultrasonic vibration, abrasive particles in the suspension continuously impact a processing surface, hard and brittle processed materials are locally damaged and impacted, and the processing process is strengthened under the action of instant positive and negative alternate positive pressure shock waves and negative pressure cavitation on the surface of the workpiece; therefore, ultrasonic machining is substantially the comprehensive result of mechanical impact, ultrasonic impact and cavitation of the abrasive material, and the main bracket 1 descends along the sliding groove of the bracket base 2 under the action of gravity, so that the tool 504 and the simulated workpiece 601 to be tested are always kept in contact, the real working condition is simulated as much as possible to apply static load, and the loading of the tested ultrasonic machining vibration system is realized.
The realization that the tested ultrasonic processing vibration system carries out variable parameter reliability test is solved:
the ultrasonic processing vibration system 5 is arranged in the constant temperature and humidity test box 7, and can be used for carrying out loading simulation tests in different temperature, humidity and vibration environments, so that the tested ultrasonic processing vibration system can carry out parameter-variable reliability tests.
Referring to fig. 1, the material supply part includes 9 simulation workpieces 8, a manipulator 9, a material table 10, a ground iron 11, a computer 12, a controller 13 and a data acquisition card 14;
the simulation workpiece 8 is completely the same as the simulation workpiece 601 to be tested and the simulation workpiece 602 to be tested in shape, size and structure, and is an iron disc. In one test, a user can select different materials for testing according to different test purposes;
the manipulator 9 is a Bernout six-axis intelligent industrial manipulator with model BRTIRUS1510A and the extension of the manipulator is 1500 mm.
The material table 10 is composed of 4 rectangular stand columns with the same structure and a rectangular plate type table top, the rectangular stand columns are straight rod type structural members with equal sections, and the length and the width of each stand column are 4cm and the height of each stand column is 100 cm; the top ends of the 4 rectangular stand columns with the same structure are respectively connected with the four corners of the bottom end face of the rectangular plate type desktop in a welding mode. 9 grooves which have the same size with the outline of the simulation workpiece 8 and the depth of 0.5cm are uniformly distributed on the rectangular plate type desktop. The material platform 10 is placed on the ground iron 11 by means of self gravity, and the other side of the manipulator 9 ensures that the manipulator 9 can grab all the simulation workpieces 8. The simulation workpiece 8 is arranged in the groove, and is fixed in position through the constraint and the self weight of the groove.
The horizontal iron 11 is a rectangular plate type structural member provided with T-shaped grooves which are parallel to each other, and the length and width of the horizontal iron 11 are 10cm shorter than those of the inner cavity of the constant temperature and humidity test box 7;
the computer 12 is a desktop computer with DELL (DELL) XPS 8930;
the controller 13 is a product matched with the servo motor 605. The servo motor 605 has the model number of 110AEA 18030-SH 3, the controller 13 is connected with the servo motor 605 through a matched servo power line and an encoder line, and the controller 13 is connected with the computer 12 through a wired RS232 standard interface. Placed on one side of the computer 12.
The data acquisition card 14 is a data acquisition card with a model number of USB3200, is connected with the computer 12 through a USB interface, and is placed on the upper part of the controller 13.
The manipulator 9 and the material platform 10 are fixed on a ground flat iron 11 by bolts.
The problem of experimental automatic operation has been solved:
1. after the test is carried out for a period of time, when the tested simulation workpiece 601 which is being tested needs to be replaced, the computer 12 controls to disconnect the power supply of the ultrasonic machining vibration system 5;
2. the computer 12 controls the manipulator 9 to lift the main bracket 1;
3. the computer 12 controls the operation of the servo motor 605 through the controller 13, and further rotates the test disc 603 by 180 degrees through the gearbox 604, so that the simulation workpiece to be tested 602 reaches the position of the simulation workpiece to be tested 601, and the automatic replacement of the simulation workpiece to be tested 601 is realized;
4. the computer 12 controls the manipulator 9 to put down the main bracket 1 lightly;
5. the computer 12 controls the manipulator 9 to place the used simulation workpiece 601 to be tested on the material table 10, and grab the simulation workpiece 8 from the material table 10 and place the simulation workpiece 8 into an empty slot in the test tray 603;
6. the computer 12 controls the power supply of the closed ultrasonic machining vibration system 5;
the steps are repeated, and the automatic operation of the test can be realized.
The problems of collection of performance parameters and fault detection of the ultrasonic machining vibration system are solved:
the computer 12 can collect the amplitude frequency of the stored eddy current sensor 403 and the computer 12 can automatically detect when the ultrasonic machining vibration system 5 fails. The collection of performance parameter data of the ultrasonic machining vibration system and the detection of faults are realized.
The frame base 2 of the frame part is bolted to the ground plate 11, thereby fixing the whole frame part. The simulation loading system 6 is arranged in the support base 2, so that the axis of a groove where a simulation workpiece 601 to be tested is located is overlapped with the circle center of the support base 2 in the vertical direction, the ultrasonic generators 501 in 1 to 6 sets of tested ultrasonic machining vibration systems are uniformly placed on the ground iron 11 around the support base 2, and the transducers 502 in 1 to 6 sets of tested ultrasonic machining vibration systems are fixed on 6 sets of iron discs 303 at the other end of the upper cantilever support 3 with the same structure; the manipulator 9 is at one side of the recess that the simulation work piece 602 of awaiting measuring is located and install in the outside of support base 2, and the material platform 10 is installed in one side of manipulator 9 to be located the arm exhibition scope of manipulator 9, and the manipulator 9 is located between support base 2 and the material platform 10, manipulator 9 and support base 2 are arranged from left to right along the vertical of horizon iron 11 in proper order.
The embodiments of the present invention are described in order to facilitate those skilled in the art to understand and apply the present invention, and the present invention is only an optimized embodiment or a preferred embodiment, so the present invention is not limited to the description of the embodiment. If the related technical personnel make equivalent structural changes or various modifications without creative efforts while adhering to the basic technical solution of the present invention, the protection scope of the present invention is covered.
Claims (9)
1. The reliability test device for the ultrasonic machining vibration system is characterized by comprising a bracket part, a loading part and a material supply part;
the bracket part comprises a main bracket (1), a bracket base (2), 6 sets of upper cantilever brackets (3) with the same structure and 6 sets of lower telescopic brackets (4) with the same structure;
the loading part comprises a simulation loading system (6) and a constant temperature and humidity test box (7);
the support base (2) is arranged at the right end of a ground iron (11) in the material supply part, the main support (1) is arranged in 6 guide sliding grooves with the same structure on the support base (2) through 6 vertical upright columns with the same structure, the two guide sliding grooves are in sliding connection, one end of 6 sets of upper cantilever supports (3) with the same structure is fixed on the 6 vertical upright columns with the same structure through screws, one end of 6 sets of lower telescopic supports (4) with the same structure is fixed on the 6 vertical upright columns with the same structure through screws, and the 6 sets of upper cantilever supports (3) with the same structure are arranged above the 6 sets of lower telescopic supports (4) with the same structure; the analog loading system (6) is arranged on a ground flat iron (11) in the bracket base (2); a computer (12), a controller (13) and a data acquisition card (14) in a material supply part are installed on a foundation on the outer side of a constant temperature and humidity test box (7), other parts in the material supply part are installed on a ground flat iron (11) on the left side of a support base (2), the ground flat iron (11) is installed on the bottom in the constant temperature and humidity test box (7), and the distance between the four sides of the ground flat iron (11) and the four walls of the constant temperature and humidity test box (7) is 10 cm.
2. The ultrasonic machining vibration system reliability test device according to claim 1, wherein the main support (1) comprises 6 vertical columns with the same structure and 6 cross beams with the same structure, the 6 vertical columns with the same structure and the 6 cross beams with the same structure are all rectangular rod-like structural members with the same cross section, and the length and width of the cross section of the 6 vertical columns with the same structure and the cross section of the 6 cross beams with the same structure are equal; the 6 vertical upright posts with the same structure are respectively provided with 2 sections of rectangular stepped through holes, the width of a first section of rectangular hole at the inner side is larger than that of a second section of rectangular hole at the outer end, the length of the first section of rectangular hole is equal to that of the second section of rectangular hole, the longitudinal symmetrical surfaces of the first section of rectangular hole and the second section of rectangular hole are coplanar and coplanar with that of the vertical upright posts, the width of the first section of rectangular hole is equal to that of one end of an upper cantilever support (3) with the same 6 sets of structures, the width of the first section of rectangular hole is equal to that of one end of a lower telescopic support (4) with the same 6 sets of structures, one end of the upper cantilever support (3) with the same 6 sets of structures is in sliding fit with one end of the lower telescopic support (4) with the same 6 sets of structures and the first section of rectangular hole, the 6 edges of the vertical upright posts with the same structures are distributed in space as a regular hexahedr, the top ends of the 6 vertical upright columns with the same structure are welded with one ends of the 6 cross beams with the same structure, the other ends of the 6 cross beams with the same structure are welded together, and the 6 vertical upright columns with the same structure are mutually perpendicular to the 6 cross beams with the same structure.
3. The ultrasonic machining vibration system reliability test device according to claim 1, characterized in that the support base (2) is a circular ring-shaped structural member, 6 guide chutes with the same structure and equal cross section are uniformly and vertically arranged on the inner wall of the support base (2) along the circumferential direction, the guide chutes can enable 6 vertical columns with the same structure in the main support (1) to vertically slide up and down, the structural size of the cross section of each guide chute on the support base (2) is equal to that of the cross section of each vertical column with the same structure, and the cross section of each guide chute is a rectangular cross section.
4. The ultrasonic machining vibration system reliability test device according to claim 1, wherein the upper cantilever support (3) comprises an upper cantilever beam (301), a strong magnetic disc (302), an iron disc (303), a number 1 fixing screw (304) and a number 2 fixing screw (305);
the upper cantilever beam (301) is a straight rod piece with a variable rectangular cross section, or the upper cantilever beam (301) is a wedge-shaped rod piece with a variable rectangular cross section, two threaded holes are uniformly arranged on the end surface of the large end of the upper cantilever beam (301) along the longitudinal direction and are used for fixing the upper cantilever beam (301) on a vertical upright in the main bracket (1), a No. 1 fixing screw (304) and a No. 2 fixing screw (305) are arranged in the two threaded holes, the width of the large end of the upper cantilever beam (301) is equal to the width of a first section of rectangular hole of a 2-section type stepped through hole on the vertical upright, an iron disc is fixed at the other end of the upper cantilever beam (301), the top end surface of the strong magnetic disc (302) is adsorbed and fixed with the bottom end surface of the iron disc, the top end surface of the iron disc (303) is adsorbed and fixed with the bottom end surface of the strong magnetic disc (302), and the rotation axes of the iron disc, the strong magnetic disc (302) and the iron disc (, the diameter and the thickness of the iron disc, the strong magnetic disc (302) and the iron disc (303) are equal.
5. The ultrasonic machining vibration system reliability test device according to claim 1, wherein the lower telescopic bracket (4) comprises a lower telescopic rod (401), a sensor fixing rod (402), an eddy current sensor (403), a number 3 fixing screw (404) and a number 4 fixing screw (405);
the lower telescopic rod (401) is a long straight rod piece with an equal rectangular cross section, and a guide limiting sliding groove which is vertically and thoroughly provided with a No. 3 fixing screw (404) is arranged on the longitudinal symmetrical line of the lower telescopic rod (401); the center of the end face of one end of the lower telescopic rod (401) is longitudinally provided with a threaded hole for mounting a No. 4 fixing screw (405), the width of the lower telescopic rod (401) is equal to that of a first section of rectangular hole of a 2-section type stepped through hole on a vertical upright in the main bracket (1), and the other end of the lower telescopic rod (401) is fixedly connected with one end of a sensor fixing rod (402) through a guide limiting sliding groove on the lower telescopic rod (401) by a No. 3 fixing screw (404); an eddy current sensor (403) is mounted on the other end of the sensor fixing rod (402).
6. The ultrasonic machining vibration system reliability test device according to claim 1, wherein the simulation loading system (6) comprises a simulation workpiece (601) under test, a simulation workpiece (602) to be tested, a test disc (603), a gearbox (604), a servo motor (605) and a test disc support (606);
the on-test simulation workpiece (601) and the standby simulation workpiece (602) are placed in 2 small circular grooves with the same structure on the test disc (603), the rotation axes of the on-test simulation workpiece (601) and the standby simulation workpiece (602) are respectively superposed with the rotation axis of the small circular groove on the test disc (603), and abrasive suspension is added into the test disc (603); the test disc (603) is connected with a gearbox key (604) through a transmission shaft at the bottom end of the test disc, the gearbox (604) is fixedly connected with a servo motor (605), and the gearbox (604) and the servo motor (605) are fixed on the ground flat iron (11) through bolts.
7. The ultrasonic machining vibration system reliability test device according to claim 6, wherein the test plate (603) is a disc-shaped structural member, the top end of the test plate (603) is provided with a large circular groove, the rotation center line of the large circular groove coincides with the rotation center line of the test plate (603), the large circular groove is internally provided with 2 small circular grooves having the same structure, the 2 small circular grooves having the same structure are symmetrically arranged relative to the rotation center line of the large circular groove, the bottom end of the test plate (603) is provided with a circular groove for mounting a test plate bracket (606), the circular groove coincides with the rotation center line of the test plate (603), the center of the bottom end face of the test plate (603) is provided with a circular section transmission shaft, the rotation center line of the transmission shaft coincides with the rotation center line of the test plate (603), the end of the transmission shaft is provided with a key slot.
8. The ultrasonic machining vibration system reliability testing apparatus of claim 6, wherein the test disc holder (606) includes 1 strut having the same support ring structure as 4 struts;
the support ring is a circular ring-shaped structural part with an equal rectangular cross section, the diameter of the inner circle of the support ring is equal to the diameter of the outer circle of the support ring and the inner diameter and the outer diameter of a circular ring-shaped groove arranged at the bottom end of the test disc (603), and the rotation center line of the support ring is collinear with the rotation center line of the circular ring-shaped groove;
the strut is a straight rod type structural member with an equal rectangular cross section, and the length and width of the strut with the equal rectangular cross section are smaller than the width of the support ring in the radius direction;
the supporting rings are arranged on the supporting rings, the.
9. The ultrasonic machining vibration system reliability testing device of claim 1, wherein the material supply part further comprises 9 simulation workpieces (8), a manipulator (9), a material table (10), a computer (12), a controller (13) and a data acquisition card (14);
the 9 simulation workpieces (8) are completely the same as the simulation workpiece (601) to be tested and the simulation workpiece (602) to be tested in shape, size and structure, and are iron discs;
the manipulator (9) adopts a Bernoulli six-axis intelligent industrial manipulator arm with the model number of BRTIRUS1510A, and the arm spread is 1500 mm;
the material table (10) is composed of 4 rectangular stand columns with the same structure and a rectangular plate type desktop, the rectangular stand columns are straight rod type structural members with the same cross section, and the top ends of the 4 rectangular stand columns with the same structure are connected with the four corners of the bottom end face of the rectangular plate type desktop in a welding mode; 9 grooves which are equal to the outline of the simulation workpiece (8) in size and 0.5cm in depth are uniformly distributed on the rectangular plate type desktop, and the material platform (10) is placed on the ground iron (11) by means of self gravity;
the ground flat iron (11) is a rectangular plate type structural member provided with T-shaped grooves which are parallel to each other, and the length and width of the ground flat iron (11) are 10cm shorter than those of the inner cavity of the constant temperature and humidity test box (7);
the computer (12) is a desktop computer with Deler XPS 8930;
the controller (13) is a product matched with the servo motor (605); the model of the servo motor (605) is 110AEA 18030-SH 3, the controller (13) is connected with the servo motor (605) through a matched servo power line and an encoder line, the controller (13) is connected with the computer (12) through a wired RS232 standard interface, and the controller (13) is arranged on one side of the computer (12);
the data acquisition card (14) is a data acquisition card with the model number of USB3200, the data acquisition card (14) is connected with the computer (12) through a USB interface, and the data acquisition card is placed on the controller (13);
the manipulator (9) is installed on the left side of the support base (2), 9 simulation workpieces (8) are placed on the material platform (10), the material platform (10) is installed on the left side of the manipulator (9), and the material platform (10), the manipulator (9) and the support base (2) are sequentially arranged from left to right along the longitudinal direction of the horizontal iron (11).
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