CN216133345U - Numerical control system reliability testing device - Google Patents
Numerical control system reliability testing device Download PDFInfo
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- CN216133345U CN216133345U CN202122452027.2U CN202122452027U CN216133345U CN 216133345 U CN216133345 U CN 216133345U CN 202122452027 U CN202122452027 U CN 202122452027U CN 216133345 U CN216133345 U CN 216133345U
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Abstract
The utility model discloses a numerical control system reliability testing device, which comprises: the device comprises a lifting workbench, a rotary moving workbench, a transverse moving workbench, a longitudinal moving workbench and a numerical control system testing device; the rotary moving workbench is internally provided with a workpiece processing rotating platform which can respectively deflect in the horizontal axial direction and the vertical axial direction; the rotary moving workbench is connected with the longitudinal moving workbench through the transverse moving workbench; the lifting workbench is arranged on the rear part of the longitudinal moving workbench through a support platform; an electric main shaft is arranged in the lifting workbench and is lifted on the lifting workbench; the lifting workbench, the rotary moving workbench, the transverse moving workbench and the longitudinal moving workbench form a five-axis machining system; the numerical control system testing device is arranged beside the five-axis machining system and is electrically connected with the five-axis machining system; the real working condition is simulated, and the test cost for performing the reliability test of the numerical control system is reduced.
Description
Technical Field
The utility model belongs to a test device in the technical field of mechanical equipment reliability tests, and particularly relates to a numerical control system reliability test device.
Background
At present, high-speed high-precision numerical control equipment is an increasingly high point of future manufacturing technology, a numerical control system is used as a core control center of the numerical control machine, the reliability level of the numerical control system can directly influence the processing precision, static characteristics, dynamic characteristics and the like of the numerical control machine, the reliability level of the numerical control machine in China has a certain gap compared with that of the numerical control machine in foreign countries, first-hand data of the reliability of the numerical control system is obtained through research, and the reliability analysis and test of the numerical control system by using the reliability theory, the test evaluation method and the key technology of the numerical control system have important significance for improving the reliability level of the numerical control system and the numerical control machine.
The foreign high-grade numerical control machine tool is usually subjected to reliability test evaluation by a special tester, however, the reliability data tested by the domestic numerical control system usually depends on a large amount of cutting experiments which are time-consuming and labor-consuming, and a universal numerical control system testing device is not provided, so that the foreign high-grade numerical control machine tool is usually required to be manufactured in a non-standard mode.
At present, most of the reliability data used for design development, performance evaluation and production application of the numerical control system is obtained by actual processing, and the required consumption of time, materials and the like undoubtedly increases the total test cost of the numerical control system, so that the development of a numerical control system reliability test device which reduces the test cost of the numerical control system and has universality is particularly necessary.
Disclosure of Invention
The utility model aims to develop a universal numerical control system testing device, which can simulate the running conditions of a numerical control system under a real working condition to ensure the validity of the acquired reliability data of the numerical control system and can greatly reduce the test cost of the reliability test of the numerical control system.
In order to solve the technical problem, a numerical control system reliability testing device is provided;
a numerical control system reliability testing device comprises: the device comprises a lifting workbench 1, a rotary moving workbench 2, a transverse moving workbench 3, a longitudinal moving workbench 4 and a numerical control system testing device 5;
the rotary moving workbench 2 is connected with the transverse moving workbench 3 in a sliding way; the transverse moving workbench 3 is connected with the longitudinal moving workbench 4 in a sliding way; a support table 16 is arranged behind the longitudinal moving workbench 4, and the lifting workbench 1 is arranged on the support table 16; an electric spindle 141 is arranged in the lifting workbench 1, and the electric spindle 141 is lifted on the lifting workbench 1;
a workpiece processing rotating table 26 is arranged in the rotary moving workbench 2, and the workpiece processing rotating table 26 can respectively deflect in the horizontal axial direction and the vertical axial direction in the rotary moving workbench 2;
the lifting workbench 1, the rotary moving workbench 2, the transverse moving workbench 3 and the longitudinal moving workbench 4 form a five-axis machining system; the numerical control system testing device 5 is arranged beside the five-axis machining system; and the five-axis machining system is electrically connected with the numerical control system testing device.
The lifting table 1 comprises: the device comprises a lifting driving component, a No. 1 grating ruler 12, a lifting joint plate 13, an electric spindle component and a z-axis acceleration sensor 15;
the electric spindle assembly comprises: an electric spindle 141, an electric spindle temperature sensor 142, an electric spindle vibration sensor 143; an electric spindle temperature sensor 142 and an electric spindle vibration sensor 143 are arranged at the upper end and the lower end of the electric spindle 141, and a z-axis acceleration sensor 15 is arranged on one side end face of the electric spindle 141; the middle part of the lifting joint plate 13 is provided with a main shaft holding clamp 131; the electric spindle 141 is fixed on the lifting joint plate 13 through the spindle holding clamp 131; the elevation joint plate 13 is elevated on the support base 16 by an elevation driving unit.
The lifting driving assembly comprises: a lifting guide rail 111, a lifting guide rail slider 112, a lifting screw 113 and a lifting screw nut; a lift drive motor 116; two lifting guide rails 111 are arranged, and the two lifting guide rails 111 are respectively arranged on two sides of the front end of the support platform 16; the lifting guide rail sliding block 112 and the lifting screw nut are arranged on the same side end face of the lifting joint plate 13; the lifting screw 113 is arranged in the middle of the front end of the support platform 16; the lifting driving motor 116 is arranged on the upper part of the support platform 16; the lifting guide rail sliding block 112 is sleeved on the lifting guide rail 111; the lifting screw nut is sleeved on the lifting screw 113; the lifting driving motor 116 is connected with the lifting screw 113 through a lifting screw coupler 1161; the elevation driving motor 116 drives the elevation screw 113 to rotate, and controls the elevation of the elevation engagement plate 13 vertically by rotating the elevation screw 113.
The rotary moving table 2 includes: a transverse moving connecting basket 21, a swinging cradle 22, a swinging driving component, a swinging acceleration sensor 24, a swinging angular acceleration sensor 25, a workpiece processing rotating platform 26, a rotating platform driving component, a rotating angular acceleration sensor 28 and a rotating acceleration sensor 29;
the transverse moving connecting basket 21 is of a U-shaped structure, and a transverse guide rail sliding block 211 is arranged at the bottom of the transverse moving connecting basket 21; a y-axis acceleration sensor 212 is arranged in the middle of one side; the swing driving component is arranged on one side of the transverse moving connecting basket 21; the swinging cradle 22 is coupled on the upper part of the transverse moving connecting basket 21, and the swinging cradle 22 deflects and swings on the transverse moving connecting basket 21 in the horizontal direction through a swinging driving component; the swing acceleration sensor 24 is arranged at one side of the swing cradle 22; the swinging angular acceleration sensor 25 is attached to the outer surface of the swinging connecting shaft fixing sleeve 221 on one side;
the workpiece processing rotary table 26 includes: the rotary disc 261 and the gear shaft 262 are arranged, and a T-shaped groove is formed in the upper end face of the rotary disc 261 and used for being matched with a workpiece clamp to fixedly install a workpiece; a gear shaft 262 is provided at the lower end of the rotary disk 261; the bottom plate of the swinging cradle 22 is provided with a spacer 222, and a gear shaft 262 is coupled in the spacer 222.
The swing driving assembly comprises: a swing driving motor 231, a swing driving gear 232, a swing conveying toothed belt 233, a swing gear transmission shaft 234, and a swing connection shaft 235; the swing drive motor 231 drives the swing drive gear 232; the swing transmission toothed belt 233 is sleeved on the swing driving gear 232 and the swing gear transmission shaft 234;
the rotating table driving assembly comprises: a rotation transmission gear 271, a rotation transmission belt 272, and a rotation driving motor 273; a rotation driving motor 273 is provided at one side of the rotating disk 261; the rotation transmission gear 271 is fixed at the lower end of the rotor of the rotation driving motor 273 by a locking nut 2711; the rotating transmission belt 272 is sleeved on the rotating transmission gear 271 and the gear shaft 262; the rotation driving motor 273 drives the rotating disk 261 to rotate.
The traverse table 3 includes: the front and back moving connecting plate 31, the transverse moving driving component and the No. 2 grating ruler 33 are arranged; the No. 2 grating ruler 33 is arranged on one side of the front-back moving connecting plate 31; the lateral movement drive assembly includes: a transverse driving motor 321, a motor coupler 322, a transverse lead screw 323, a transverse lead screw nut 324 and a transverse lead screw fixing seat 325; a weight reduction groove is formed in the middle of the front-back moving connecting plate 31, and transverse screw rod fixing seats 325 are arranged at two ends of the weight reduction groove of the front-back moving connecting plate 31; two ends of the transverse screw 323 are coupled in the transverse screw fixing seat 325; the transverse driving motor 321 is fixed on one side of the front-back moving connecting plate 31; the transverse driving motor 321 is connected with a transverse lead screw 323 through a motor coupling 322; a transverse lead screw nut 324 is sleeved on the transverse lead screw 323; the upper end of the transverse lead screw nut 324 is fixed at the bottom of the transverse moving connecting basket 21.
The longitudinal moving table 4 comprises: the device comprises a longitudinal moving base, a longitudinal moving driving component, a longitudinal driving motor 43, a longitudinal motor coupler 44, a supporting platform base 45 and a No. 3 grating ruler 46; the longitudinal moving base is a cast structural member, slope supporting feet are arranged at four corners of the longitudinal moving base, weight reduction grooves are formed in the middles of the supporting feet, reinforcing rib plates are arranged between the supporting feet and the longitudinal moving base, and trapezoidal weight reduction grooves are formed in the middles of the longitudinal moving base; the No. 3 grating ruler 46 is arranged on the outer end face of one side of the longitudinal moving base;
the longitudinal movement driving assembly comprises: the longitudinal sliding rail 421, the longitudinal sliding rail block 422, the longitudinal screw 423, the longitudinal screw nut 424 and the longitudinal screw fixing seat 425;
the longitudinal slide rail 421 is arranged on the upper end surfaces of the other two ends of the trapezoidal weight-reducing groove of the longitudinal moving base; the number of the longitudinal guide rail sliding blocks 422 is 4, and the 4 longitudinal guide rail sliding blocks 422 are respectively arranged at four corners at the bottom of the front-back moving connecting plate 31;
the number of the longitudinal screw rod fixing seats 425 is 2, and the 2 longitudinal screw rod fixing seats 425 are respectively arranged at two ends of a trapezoidal weight-reducing groove in the middle of the longitudinal moving base; the longitudinal screw 423 is axially connected in the longitudinal screw fixing seat 425; the longitudinal screw nut 424 is sleeved on the longitudinal screw 423; the longitudinal screw nut 424 is arranged in the middle of the lower end of the front-back moving connecting plate 31;
the longitudinal driving motor 43 is arranged at one side end part of the longitudinal moving base, and the rotor of the longitudinal driving motor 43 is connected with the longitudinal screw 423 through a longitudinal motor coupler 44.
The numerical control system testing device 5 comprises: a temperature and humidity test 51 and a numerical control system 52; the numerical control system 52 is electrically connected with the lifting drive motor 116, the No. 1 grating ruler 12, the electric spindle 141, the electric spindle temperature sensor 142, the electric spindle vibration sensor 143, the z-axis acceleration sensor 15, the y-axis acceleration sensor 212, the swing drive motor 231, the swing acceleration sensor 24, the swing angular acceleration sensor 25, the swing acceleration sensor 24, the transverse drive motor 321, the No. 2 grating ruler 33, the longitudinal drive motor 43, and the No. 3 grating ruler 46, respectively.
The utility model provides a numerical control system reliability testing device, which comprises: the device comprises a lifting workbench 1, a rotary moving workbench 2, a transverse moving workbench 3, a longitudinal moving workbench 4 and a numerical control system testing device 5; a workpiece processing rotating table 26 is arranged in the rotary moving workbench 2, and the workpiece processing rotating table 26 can respectively deflect in the horizontal axial direction and the vertical axial direction in the rotary moving workbench 2; the rotary moving workbench 2 is connected with the longitudinal moving workbench 4 through the transverse moving workbench 3; the lifting workbench 1 is arranged on the rear part of the longitudinal moving workbench 4 through a support platform 16; an electric spindle 141 is arranged in the lifting workbench 1, and the electric spindle 141 is lifted on the lifting workbench 1; the five-axis machining system is composed of a lifting workbench 1, a rotary moving workbench 2, a transverse moving workbench 3 and a longitudinal moving workbench 4; the numerical control system testing device 5 is arranged beside the five-axis machining system and is electrically connected with the five-axis machining system; the real working condition is simulated, and the test cost for performing the reliability test of the numerical control system is reduced.
Compared with the prior art, the utility model has the beneficial effects that:
1. the temperature and humidity test box in the numerical control system can accurately simulate the vibration, temperature and humidity of the numerical control system in the machining process of the numerical control machine tool, simulate the environmental influence factors of the numerical control system under real working conditions, and provide guarantee for the validity of test data of the reliability test of the numerical control system.
2. The five-axis machining system can quickly move under the instruction of the numerical control system to react, the sensor transmits data back to the system to compare with the ideal action track of the system instruction, and the static and dynamic tracking characteristics of the numerical control system under the influence conditions of different environmental factors are monitored in real time.
3. The numerical control system testing device can truly simulate the action instruction of the numerical control system in the processing process without actually processing a real object, and reduces the test cost for carrying out the reliability test on the numerical control system.
4. The five-axis machining system can be adapted to various numerical control systems, so that the reliability test of the numerical control systems can be developed, and the five-axis machining system has strong universality.
Drawings
FIG. 1 is an axonometric view of a five-axis machining system structure of a numerical control system reliability testing device of the utility model;
FIG. 2 is an axonometric projection view of the structure of a lifting movable worktable of a five-axis machining system in the numerical control system reliability testing device of the utility model;
FIG. 3 is an exploded view of a rotary moving table structure of a five-axis machining system in the numerical control system reliability testing device according to the present invention;
FIG. 4 is an axial projection view of a structure of a transverse moving worktable of a five-axis machining system in the numerical control system reliability testing device of the utility model;
FIG. 5 is an axonometric projection view of the structure of a longitudinal moving worktable of a five-axis machining system in the numerical control system reliability testing device of the utility model;
FIG. 6 is a perspective view of the numerical control system testing apparatus of the numerical control system reliability testing apparatus of the present invention;
in the figure: a lifting workbench 1, a lifting guide rail 111, a lifting guide rail slider 112, a lifting screw 113, a lifting screw support 1131, a lifting screw nut, a lifting drive motor 116, a No. 1 grating ruler 12, a lifting joint plate 13, a main shaft clamp 131, an electric main shaft 141, an electric main shaft temperature sensor 142, an electric main shaft vibration sensor 143, a z-axis acceleration sensor 15, a support table 16, a lifting screw coupling 1161, a rotary moving workbench 2, a transverse moving connecting basket 21, a transverse guide rail slider 211, a y-axis acceleration sensor 212, a transmission part protection cover 213, a swinging cradle 22, a swinging connecting shaft fixing sleeve 221, a spacer 222, a swinging drive motor 231, a swinging drive gear 232, a swinging transmission toothed belt 233, a swinging gear transmission shaft 234, a swinging connecting shaft 235, a swinging acceleration sensor 24, a swinging angular acceleration sensor 25, a rotary transmission gear 271 and a rotary transmission belt 272, the device comprises a rotary driving motor 273, a rotary angular acceleration sensor 28, a rotary acceleration sensor 29, a workpiece processing rotary table 26, a rotary disc 261, a gear shaft 262, a transverse moving table 3, a front-back moving connecting plate 31, a transverse driving motor 321, a motor coupling 322, a transverse lead screw 323, a transverse lead screw nut 324, a transverse lead screw fixing seat 325, a No. 2 grating ruler 33, a longitudinal moving table 4, a longitudinal slide rail 421, a longitudinal guide rail slide block 422, a longitudinal lead screw 423, a longitudinal lead screw nut 424, a longitudinal lead screw fixing seat 425, a longitudinal driving motor 43, a longitudinal motor coupling 44, a support table base 45, a No. 3 grating ruler 46, a numerical control system testing device 5, a temperature and humidity test box 51 and a numerical control system 52.
Detailed Description
Example 1
Referring to fig. 1 to 6, a device for testing reliability of a numerical control system includes: the device comprises a lifting workbench 1, a rotary moving workbench 2, a transverse moving workbench 3, a longitudinal moving workbench 4 and a numerical control system testing device 5;
the lifting workbench 1, the rotary moving workbench 2, the transverse moving workbench 3 and the longitudinal moving workbench 4 form a five-axis machining system; the numerical control system testing device 5 is arranged beside the five-axis machining system; the five-axis machining system is electrically connected with the numerical control system testing device;
the rotary moving workbench 2 is connected with the longitudinal moving workbench 4 through the transverse moving workbench 3; the longitudinal moving workbench 4 and the numerical control system testing device 5 are electrically connected and are arranged on a ground flat iron of the frame together; a support table 16 is arranged behind the longitudinal moving workbench 4, and the lifting workbench 1 is arranged on the support table 16;
a transverse sliding rail 32 is arranged in the transverse moving workbench 3; a transverse guide rail sliding block 211 is arranged below the rotary moving workbench 2; the rotary moving table 2 is mounted on the lateral slide rail 32 through a lateral guide slider 211; the rotary moving table 2 moves transversely on the transverse moving table 3;
the longitudinal moving workbench 4 is arranged on a ground flat iron of the frame; a longitudinal slide rail 421 is arranged on the longitudinal moving workbench 4; a longitudinal guide rail sliding block 422 is arranged below the transverse moving workbench 3; the transverse moving worktable 3 is arranged on a longitudinal slide rail 421 of the longitudinal moving worktable 4 through a longitudinal guide rail slide block 422; the traverse table 3 moves longitudinally on the longitudinal movement table 4.
The lifting table 1 comprises: the device comprises a lifting driving assembly, a No. 1 grating ruler 12, a lifting joint plate 13, an electric spindle assembly, a z-axis acceleration sensor 15 and a support table 16;
the support table 16 is a cuboid upright column structural member, two long fixing plates are arranged on the left side and the right side of the bottom end of the support table, reinforcing rib plates with the same interval are arranged on the long fixing plates, and threaded holes are formed among the rib plates; a trapezoidal weight-reducing groove is formed in the front side of the support platform 16;
a No. 1 grating ruler 12 is arranged on one side of the support platform 16; the lifting driving component is arranged at the front side of the support platform 16; the lifting joint plate 13 is connected with the front end of the support platform 16 in a sliding way; the lifting driving component drives the lifting joint plate 13 to lift; the electric spindle assembly is arranged on the lifting joint plate 13; the z-axis acceleration sensor 15 is arranged in the electric spindle assembly;
the lifting driving assembly comprises: a lifting guide rail 111, a lifting guide rail slider 112, a lifting screw 113 and a lifting screw nut; a lift drive motor 116;
two lifting guide rails 111 are arranged, and the two lifting guide rails 111 are respectively arranged on two sides of the front end of the support platform 16; the lifting guide rail sliding block 112 and the lifting screw nut are arranged on the same side end face of the lifting joint plate 13; the lifting screw 113 is arranged in the middle of the front end of the support platform 16; the lifting driving motor 116 is arranged on the upper part of the support platform 16; the lifting guide rail sliding block 112 is sleeved on the lifting guide rail 111; the lifting screw nut is sleeved on the lifting screw 113;
the lifting driving motor 116 is connected with the lifting screw 113 through a lifting screw coupler 1161; the lifting driving motor 116 drives the lifting screw 113 to rotate, and the lifting joint plate 13 is controlled to vertically lift by rotating the lifting screw 113;
a trapezoidal weight reduction groove is formed in the front side of the support table 16, and a lifting screw rod support seat 1131 is respectively arranged at the upper end and the lower end of the trapezoidal weight reduction groove; the two ends of the lifting screw 113 are coupled to the lifting screw support 1131; namely, the elevating screw 113 is vertically arranged in the middle of the front end of the support platform 16 through the elevating screw support 1131;
the number 1 grating ruler 12 is a Sinuo KA300 numerical control machine high-precision grating ruler, the resolution can reach 1um, screw holes are formed in the left end and the right end of the number 1 grating ruler 12 and aligned and concentric with the screw holes in the right side wall of the supporting platform 16, and the number 1 grating ruler 12 is fixedly connected to the right side wall of the supporting platform 16 through screws;
the lifting screw 113 is a C3 grade high-precision and high-strength ball screw; a screw nut is arranged on the lifting screw 113 for power transmission, and the lifting screw 113 is arranged in the middle of the trapezoidal weight reduction groove of the support table 16;
the lifting guide rail 111 selects HGW series precise moving guide rails, equidistant screw holes are arranged on the lifting guide rail 111, two same lifting guide rails 111 are symmetrically arranged at the left end and the right end of the front side of the support platform, screws penetrate through the screw holes on the lifting guide rails 111 to be matched with the symmetrically arranged threaded holes with the same interval at the left end and the right end of the front side of the support platform 16, and the two lifting guide rails 111 are fixed on the surfaces of the left end and the right end of the front side of the support platform 16;
the lifting guide rail sliders 112 are linear guide rail sliders of HGW series, and 4 lifting guide rail sliders 112 are symmetrically arranged on the lifting joint plate 13 and are sleeved on the two lifting guide rails 111;
the electric spindle assembly comprises: electric spindle 141, electric spindle temperature sensor 142, electric spindle vibration sensor 143
The middle part of the lifting joint plate 13 is provided with a main shaft holding clamp 131; the electric spindle 141 is fixed on the lifting joint plate 13 through the spindle holding clamp 131;
the main shaft holding clamp 131 is a cylinder-like hollow structural member, a through hole is arranged at the geometric center of the upper surface and the lower surface of the main shaft holding clamp 131, 8 equidistant threaded holes are formed in the circumference near the through hole of the lower surface of the main shaft holding clamp 131 for installing and fixing the electric main shaft 141, strip plates are arranged on the left side and the right side of the main shaft holding clamp 131, are provided with equidistant screw holes and are aligned and concentric with the threaded holes formed in the left end and the right end of the middle front side of the lifting joint plate 13, and the main shaft holding clamp 131 is tightly fixed on the front side surface of the lifting joint plate 13 through screw connection;
the electric main shaft 141 is a long shaft tested piece, the lower side of the electric main shaft is provided with a flange structure, a flange is provided with a screw hole and is aligned and concentric with the screw hole arranged on the circumference near the through hole on the lower surface of the main shaft holding clamp 113, and the upper surface of the flange on the lower side of the electric main shaft 141 is attached to the lower surface of the main shaft holding clamp 113;
the lifting driving motor 116 is an AC servo motor with the model number of 180ST-M48015 HFBB.
The rotary moving table 2 includes: a transverse moving connecting basket 21, a swinging cradle 22, a swinging driving component, a swinging acceleration sensor 24, a swinging angular acceleration sensor 25, a workpiece processing rotating platform 26, a rotating platform driving component, a rotating angular acceleration sensor 28 and a rotating acceleration sensor 29;
the transverse moving connecting basket 21 is of a U-shaped structure, and a transverse guide rail sliding block 211 is arranged at the bottom of the transverse moving connecting basket 21; a y-axis acceleration sensor 212 is arranged in the middle of one side;
a transmission part protection cover 213 is arranged on one side of the transverse moving connecting basket 21; the two ends of the swinging cradle 22 are coupled on the upper part of the transverse moving connecting basket 21, and the swinging driving component is arranged in the transmission component protective cover 213;
the swing driving assembly comprises: a swing driving motor 231, a swing driving gear 232, a swing conveying toothed belt 233, a swing gear transmission shaft 234, and a swing connection shaft 235;
the swing connecting shaft 235 includes: a left end circular plate and a right end optical axis; a swing connecting shaft fixing sleeve 221 is arranged at the left side of the swing cradle 22, and the left end circular plate and the right end optical axis are in shaft connection with the swing connecting shaft fixing sleeve 221 at the left end face of the swing cradle 22; the swing gear transmission shaft 234 is fixedly connected with the right optical axis;
the left end circular plate, the right end optical axis, the swing connecting shaft fixing sleeve 221 and the swing gear transmission shaft 234 are arranged on the same axis; the swing drive motor 231 drives the swing drive gear 232; the swing transmission toothed belt 233 is sleeved on the swing driving gear 232 and the swing gear transmission shaft 234; the swing drive motor 231 drives the swing cradle 22 to swing through the mechanical transmission of the swing drive assembly;
the swing acceleration sensor 24 is arranged at one side of the swing cradle 22; the swinging angular acceleration sensor 25 is attached to the outer surface of the swinging connecting shaft fixing sleeve 221 on one side; the swing acceleration sensor 24 and the swing angle acceleration sensor 25 acquire the swing amplitude and angle; recording the numerical variation of the angular acceleration of rotation of the swinging cradle 22 in real time;
the swing acceleration sensor 24 and the swing angular acceleration sensor 25 both adopt sensors with model number HWT 950;
the workpiece processing rotary table 26 includes: the rotary disc 261 and the gear shaft 262 are arranged, and a T-shaped groove is formed in the upper end face of the rotary disc 261 and used for being matched with a workpiece clamp to fixedly install a workpiece; a gear shaft 262 is provided at the lower end of the rotary disk 261; the flat plate at the bottom end of the swinging cradle 22 is provided with a spacer 222, and a gear shaft 262 is coupled in the spacer 222;
the rotating table driving assembly comprises: a rotation transmission gear 271, a rotation transmission belt 272, and a rotation driving motor 273; a rotation driving motor 273 is provided at one side of the rotating disk 261; the rotation transmission gear 271 is fixed at the lower end of the rotor of the rotation driving motor 273 by a locking nut 2711; the rotating transmission belt 272 is sleeved on the rotating transmission gear 271 and the gear shaft 262; the rotation driving motor 273 drives the rotating disk 261 to rotate;
the rotation angular acceleration sensor 28 is an RM3100 rotation angular acceleration sensor, the rotation angular acceleration sensor 28 is attached to the outer circumferential vertical surface of the rotating disc, and changes of the rotation angular acceleration of the workpiece processing rotating table are recorded in real time;
the rotation acceleration sensor 29 is an angular acceleration sensor with the model of MPU9250, the rotation acceleration sensor 29 is arranged on the upper surface of the rotating disc 261, and the change of the rotation acceleration of the workpiece processing rotating table is recorded in real time;
the rotary drive motor 273 is also selected to be a 180ST-M48015HFBB AC servo motor.
The traverse table 3 includes: the front and back moving connecting plate 31, the transverse moving driving component and the No. 2 grating ruler 33 are arranged;
the No. 2 grating ruler 33 is arranged on one side of the front-back moving connecting plate 31;
the lateral movement driving assembly comprises: a transverse driving motor 321, a motor coupler 322, a transverse lead screw 323, a transverse lead screw nut 324 and a transverse lead screw fixing seat 325;
a weight reduction groove is formed in the middle of the front-back moving connecting plate 31, and transverse screw rod fixing seats 325 are arranged at two ends of the weight reduction groove of the front-back moving connecting plate 31; two ends of the transverse screw 323 are coupled in the transverse screw fixing seat 325; the transverse driving motor 321 is fixed on one side of the front-back moving connecting plate 31; the transverse driving motor 321 is connected with a transverse lead screw 323 through a motor coupling 322; a transverse lead screw nut 324 is sleeved on the transverse lead screw 323; the upper end of the transverse lead screw nut 324 is fixed at the bottom of the transverse moving connecting basket 21.
The longitudinal moving table 4 comprises: the device comprises a longitudinal moving base, a longitudinal moving driving component, a longitudinal driving motor 43, a longitudinal motor coupler 44, a supporting platform base 45 and a No. 3 grating ruler 46;
the longitudinal moving base is a cast structural member, slope supporting feet are arranged at four corners of the longitudinal moving base, weight reduction grooves are formed in the middles of the supporting feet, reinforcing rib plates are arranged between the supporting feet and the longitudinal moving base, and trapezoidal weight reduction grooves are formed in the middles of the longitudinal moving base; the No. 3 grating ruler 46 is arranged on the outer end face of one side of the longitudinal moving base;
the longitudinal movement driving assembly comprises: the longitudinal sliding rail 421, the longitudinal sliding rail block 422, the longitudinal screw 423, the longitudinal screw nut 424 and the longitudinal screw fixing seat 425;
the longitudinal slide rail 421 is arranged on the upper end surfaces of the other two ends of the trapezoidal weight-reducing groove of the longitudinal moving base; the number of the longitudinal guide rail sliding blocks 422 is 4, and the 4 longitudinal guide rail sliding blocks 422 are respectively arranged at four corners at the bottom of the front-back moving connecting plate 31;
the number of the longitudinal screw rod fixing seats 425 is 2, and the 2 longitudinal screw rod fixing seats 425 are respectively arranged at two ends of a trapezoidal weight-reducing groove in the middle of the longitudinal moving base; the longitudinal screw 423 is axially connected in the longitudinal screw fixing seat 425; the longitudinal screw nut 424 is sleeved on the longitudinal screw 423; the longitudinal screw nut 424 is arranged in the middle of the lower end of the front-back moving connecting plate 31;
the longitudinal driving motor 43 is arranged at one side end part of the longitudinal moving base, and the rotor of the longitudinal driving motor 43 is connected with the longitudinal screw 423 through a longitudinal motor coupler 44.
The numerical control system testing device 5 comprises: a temperature and humidity test chamber 51 and a numerical control system 52;
the temperature and humidity test box 51 is manufactured by Suzhou Su test instruments, Inc., and has the advantages of simple network connection, excellent control design, strong integrated dynamic analysis function and the like, and the temperature and humidity test box 51 can apply three environmental influence factors of accurate temperature, vibration and humidity to the numerical control system 52 to perform a reliability test of the numerical control system 52;
the numerical control system is a numerical control system produced by Huazhong numerical control, the upper side of the numerical control system consists of a display screen and a control button, and the lower side of the numerical control system is provided with control auxiliary devices such as a control cable and the like in a supporting box;
when the numerical control system reliability test is carried out, the numerical control system 52 of the numerical control system testing device 5 sends out an instruction to drive the five-axis machining system to make a corresponding instruction action, in the process, the temperature and humidity test box applies three environmental influence factors of different temperatures, vibrations and humidity to act on the numerical control system, each sensor and each grating scale record the reliability test data of the numerical control system in real time, the reliability comprehensive influence analysis is carried out according to the relative ratio of the reliability data obtained before the environmental factors influencing the numerical control system are exerted and the reliability data obtained after the environmental factors influencing the numerical control system are exerted, the reliability analysis of the numerical control system under the influence of environmental factors such as dynamic tracking characteristic, static tracking characteristic and the like is carried out by using a plurality of indexes such as vibration amplitude change, displacement change, acceleration change, speed change and the like, therefore, the reliability level of the numerical control system 52 under the comprehensive influence of different environmental factors is truly evaluated.
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 merely an optimized example or a preferred embodiment. Equivalent structural changes or various modifications which do not require inventive work are within the scope of the present invention if those skilled in the art insist on the basic technical solution of the present invention.
Claims (9)
1. A numerical control system reliability testing device is characterized by comprising: the device comprises a lifting workbench (1), a rotary moving workbench (2), a transverse moving workbench (3), a longitudinal moving workbench (4) and a numerical control system testing device (5);
the rotary moving workbench (2) is connected with the transverse moving workbench (3) in a sliding manner; the transverse moving workbench (3) is connected with the longitudinal moving workbench (4) in a sliding way; a support table (16) is arranged behind the longitudinal moving workbench (4), and the lifting workbench (1) is arranged on the support table (16); an electric main shaft (141) is arranged in the lifting workbench (1), and the electric main shaft (141) is lifted on the lifting workbench (1); a workpiece processing rotating table (26) is arranged in the rotary moving workbench (2), and the workpiece processing rotating table (26) can respectively perform horizontal axial deflection and vertical movement in the rotary moving workbench (2);
the five-axis machining system is formed by the lifting workbench (1), the rotating movable workbench (2), the transverse movable workbench (3) and the longitudinal movable workbench (4); the numerical control system testing device (5) is arranged beside the five-axis machining system and is electrically connected with the five-axis machining system.
2. The numerical control system reliability testing device according to claim 1, characterized in that: the lifting workbench (1) comprises: the lifting device comprises a lifting driving assembly, a No. 1 grating ruler (12), a lifting joint plate (13), an electric spindle assembly and a z-axis acceleration sensor (15);
the electric spindle assembly comprises: an electric spindle (141), an electric spindle temperature sensor (142), and an electric spindle vibration sensor (143); an electric spindle temperature sensor (142) and an electric spindle vibration sensor (143) are arranged at the upper end and the lower end of the electric spindle (141), and a z-axis acceleration sensor (15) is arranged on the end face of one side of the electric spindle (141); the middle part of the lifting joint plate (13) is provided with a main shaft holding clamp (131); the electric spindle (141) is fixed on the lifting joint plate (13) through a spindle holding clamp (131); the elevation joint plate (13) is elevated on the support base (16) by an elevation drive component.
3. The numerical control system reliability testing device according to claim 2, characterized in that: the lifting driving assembly comprises: the lifting guide rail (111), the lifting guide rail slider (112), a lifting screw (113) and a lifting screw nut; a lifting drive motor (116); two lifting guide rails (111) are arranged, and the two lifting guide rails (111) are respectively arranged on two sides of the front end of the support platform (16); the lifting guide rail sliding block (112) and the lifting lead screw nut are arranged on the same side end face of the lifting joint plate (13); the lifting screw (113) is arranged in the middle of the front end of the support table (16); the lifting driving motor (116) is arranged at the upper part of the supporting platform (16); the lifting guide rail sliding block (112) is sleeved on the lifting guide rail (111); the lifting screw nut is sleeved on the lifting screw (113); the lifting driving motor (116) is connected with the lifting screw (113) through a lifting screw coupling (1161); the lifting driving motor (116) drives the lifting screw (113) to rotate, and the lifting joint plate (13) is controlled to vertically lift through rotating the lifting screw (113).
4. The numerical control system reliability testing device according to claim 3, characterized in that: the rotary moving table (2) comprises: the device comprises a transverse moving connecting basket (21), a swinging cradle (22), a swinging driving component, a swinging acceleration sensor (24), a swinging angular acceleration sensor (25), a workpiece processing rotating platform (26), a rotating platform driving component, a rotating angular acceleration sensor (28) and a rotating acceleration sensor (29);
the transverse moving connecting basket (21) is of a U-shaped structure, and a transverse guide rail sliding block (211) is arranged at the bottom of the transverse moving connecting basket (21); a y-axis acceleration sensor (212) is arranged in the middle of one side; the swing driving component is arranged on one side of the transverse moving connecting basket (21); the swinging cradle (22) is coupled at the upper part of the transverse moving connecting basket (21), and the swinging cradle (22) deflects and swings on the transverse moving connecting basket (21) in the horizontal direction through a swinging driving component; the swing acceleration sensor (24) is arranged at one side of the swing cradle (22); the swinging angular acceleration sensor (25) is attached to the outer surface of the swinging connecting shaft fixing sleeve (221) on one side;
the workpiece processing rotary table (26) comprises: the rotary fixture comprises a rotary disc (261) and a gear shaft (262), wherein a T-shaped groove is formed in the upper end face of the rotary disc (261) and used for being matched with a workpiece fixture to fixedly install a workpiece; the gear shaft (262) is arranged at the lower end of the rotating disc (261); the flat plate at the bottom end of the swinging cradle (22) is provided with a spacer bush (222), and a gear shaft (262) is coupled in the spacer bush (222).
5. The numerical control system reliability testing device according to claim 4, characterized in that: the swing driving assembly comprises: a swing driving motor (231), a swing driving gear (232), a swing conveying toothed belt (233), a swing gear transmission shaft (234) and a swing connecting shaft (235); a swing driving motor (231) drives a swing driving gear (232); the swing conveying toothed belt (233) is sleeved on the swing driving gear (232) and the swing gear transmission shaft (234).
6. The numerical control system reliability testing device according to claim 5, characterized in that: the rotating table driving assembly comprises: a rotation transmission gear (271), a rotation transmission belt (272), and a rotation driving motor (273); the rotary driving motor (273) is arranged at one side of the rotary disc (261); the rotary transmission gear (271) is fixed on the rotary driving motor (273); the rotary transmission belt (272) is sleeved on the rotary transmission gear (271) and the gear shaft (262); the rotation driving motor (273) drives the rotating disk (261) to rotate.
7. The numerical control system reliability testing device according to claim 6, characterized in that: the transverse moving table (3) comprises: the device comprises a front-back moving connecting plate (31), a transverse moving driving component and a No. 2 grating ruler (33); the No. 2 grating ruler (33) is arranged on one side of the front-back moving connecting plate (31); the lateral movement drive assembly includes: the device comprises a transverse driving motor (321), a motor coupling (322), a transverse lead screw (323), a transverse lead screw nut (324) and a transverse lead screw fixing seat (325); a weight reduction groove is formed in the middle of the front-back moving connecting plate (31), and two ends of the weight reduction groove of the front-back moving connecting plate (31) are provided with transverse screw rod fixing seats (325); two ends of the transverse screw rod (323) are coupled in the transverse screw rod fixing seat (325); the transverse driving motor (321) is fixed on one side of the front-back moving connecting plate (31); the transverse driving motor (321) is connected with a transverse screw rod (323) through a motor coupling (322); the transverse screw nut (324) is sleeved on the transverse screw (323); the upper end of the transverse lead screw nut (324) is fixed at the bottom of the transverse movable connecting basket (21).
8. The numerical control system reliability testing device according to claim 7, characterized in that: the longitudinal moving table (4) comprises: the device comprises a longitudinal moving base, a longitudinal moving driving component, a longitudinal driving motor (43), a longitudinal motor coupler (44), a supporting table base (45) and a No. 3 grating ruler (46); the longitudinal moving base is a cast structural member, slope supporting feet are arranged at four corners of the longitudinal moving base, weight reduction grooves are formed in the middles of the supporting feet, reinforcing rib plates are arranged between the supporting feet and the longitudinal moving base, and trapezoidal weight reduction grooves are formed in the middles of the longitudinal moving base; a No. 3 grating ruler (46) is arranged on the outer end face of one side of the longitudinal moving base;
the longitudinal movement driving assembly comprises: the device comprises a longitudinal sliding rail (421), a longitudinal guide rail sliding block (422), a longitudinal screw rod (423), a longitudinal screw rod nut (424) and a longitudinal screw rod fixing seat (425);
the longitudinal slide rail (421) is arranged on the upper end surfaces of the other two ends of the trapezoidal weight-reducing groove of the longitudinal moving base; 4 longitudinal guide rail sliding blocks (422) are arranged, and the 4 longitudinal guide rail sliding blocks (422) are respectively arranged at four corners at the bottom of the front-back moving connecting plate (31);
the number of the longitudinal lead screw fixing seats (425) is 2, and the 2 longitudinal lead screw fixing seats (425) are respectively arranged at two ends of a trapezoidal weight-reducing groove in the middle of the longitudinal moving base; the longitudinal screw (423) is coupled in the longitudinal screw fixing seat (425) in a shaft way; the longitudinal screw nut (424) is sleeved on the longitudinal screw (423); the longitudinal screw nut (424) is arranged in the middle of the lower end of the front-back moving connecting plate (31);
the longitudinal driving motor (43) is arranged at one side end part of the longitudinal moving base, and a rotor of the longitudinal driving motor (43) is connected with the longitudinal screw rod (423) through a longitudinal motor coupling (44).
9. The numerical control system reliability testing device according to claim 8, characterized in that: the numerical control system testing device (5) comprises: a temperature and humidity test (51) and a numerical control system (52); the numerical control system (52) is respectively electrically connected with the lifting drive motor (116), the No. 1 grating ruler (12), the electric spindle (141), the electric spindle temperature sensor (142), the electric spindle vibration sensor (143), the z-axis acceleration sensor (15), the y-axis acceleration sensor (212), the swinging drive motor (231), the swinging acceleration sensor (24), the swinging angle acceleration sensor (25), the swinging acceleration sensor (24), the transverse drive motor (321), the No. 2 grating ruler (33), the longitudinal drive motor (43) and the No. 3 grating ruler (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122452027.2U CN216133345U (en) | 2021-10-12 | 2021-10-12 | Numerical control system reliability testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122452027.2U CN216133345U (en) | 2021-10-12 | 2021-10-12 | Numerical control system reliability testing device |
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| Publication Number | Publication Date |
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| CN216133345U true CN216133345U (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122452027.2U Active CN216133345U (en) | 2021-10-12 | 2021-10-12 | Numerical control system reliability testing device |
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| Country | Link |
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| CN (1) | CN216133345U (en) |
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2021
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