CN115235674A - Friction force detection device and method of servo drive system - Google Patents
Friction force detection device and method of servo drive system Download PDFInfo
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- CN115235674A CN115235674A CN202210901410.8A CN202210901410A CN115235674A CN 115235674 A CN115235674 A CN 115235674A CN 202210901410 A CN202210901410 A CN 202210901410A CN 115235674 A CN115235674 A CN 115235674A
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 63
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 230000008569 process Effects 0.000 claims description 56
- 238000009434 installation Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0042—Force sensors associated with force applying means applying a torque
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Abstract
The invention relates to the technical field of servo drive, and discloses a friction force detection device and a friction force detection method of a servo drive system, wherein the friction force detection device comprises a rack and a torque detector, wherein a placing disc is arranged on the upper surface of the rack through a rotating assembly, a fourth placing hole is formed in the middle of the upper surface of the placing disc, a support frame is arranged on the upper surface of the rack, a fixed clamping assembly is arranged between the placing hole and the support frame, and a mounting plate is arranged between the support frame and the rack through an up-down adjusting assembly; according to the invention, the placing disc continuously rotates to enable the detected servo motor to rotate to the rear side of the rack, at the moment, the movable block can be separated from the arc-shaped block to enable the V-shaped clamping plate to loosen the servo motor, then the detected servo motor is taken out from the rear side of the rack, and meanwhile, the servo motor on the front side of the placing disc can rotate to the position below the connecting assembly to continuously test, so that the continuous detection of the servo motor is realized, the operation steps are reduced, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of servo drive, in particular to a friction force detection device and a friction force detection method of a servo drive system.
Background
The servo type driving system has the function of accurately controlling the position and the angle of the motor spindle, the controllability of the driving system is higher, and the servo type control braking system becomes a mainstream scheme for controlling the motor based on the advantages.
For a motor, friction is always a key factor influencing the control effect of a system, when the maximum static friction torque of a servo motor is measured at present, the motor is firstly fixed, then a torque detector is fixed on a main shaft of the motor, then an operator manually enables the torque detector to drive the main shaft to rotate, and whether the maximum static friction torque is qualified or not is judged according to the numerical value of the torque detector.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a friction force detection device and a friction force detection method of a servo drive system, and aims to solve the problems that the conventional servo motor in the background art has more operation steps, is inconvenient for personnel to operate and seriously influences the detection efficiency when detecting the friction force.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a servo drive system's frictional force detection device, includes frame and moment detector, the upper surface of frame is provided with through rotating assembly places the dish, the upper surface middle part of placing the dish has been seted up the fourth hole of placing, the upper surface of frame is provided with the support frame, it is provided with fixed centre gripping subassembly to place between hole and the support frame, be provided with the mounting panel through upper and lower adjusting part between support frame and the frame, the lower surface left side fixedly connected with test motor of mounting panel, test motor's output and moment detector fixed connection, the lower fixed surface of moment detector is connected with coupling assembling.
Preferably, the frame includes install bin and four supporting legs, the top of supporting leg is connected with the lower fixed surface of install bin, the bottom fixedly connected with antiskid seat of supporting leg.
Preferably, rotating assembly includes rotation axis, first motor, first gear and second gear, the top of rotation axis and the lower surface middle part fixed connection who places the dish, the bottom of rotation axis run through the interior roof of install bin and with first gear fixed connection, the rotation axis passes through the bearing and is connected with the install bin rotation, first motor fixed connection is at the interior roof of install bin, the output and the second gear fixed connection of first motor, the second gear is connected with first gear engagement.
Preferably, a V-shaped groove is formed in one side, close to the middle of the placing disc, of the placing hole, and a first rubber pad is fixedly connected to the inner wall of the V-shaped groove.
Preferably, the support frame includes diaphragm and two risers, two the bottom of riser respectively with the left and right sides fixed connection of install bin upper surface, two the top of riser respectively with both ends fixed connection about the diaphragm.
Preferably, fixed centre gripping subassembly includes arc piece, movable block and two first springs, arc piece and left riser fixed connection, two guide bars of one side fixedly connected with of arc piece are kept away from to the movable block, the one end of guide bar runs through the inner wall of placing the hole and is provided with V-arrangement grip block, the guide bar with place a set sliding connection, first spring housing is established at the surface of guide bar, the one end and the movable block fixed connection of first spring, the other end of first spring and the outer fixed surface who places the dish are connected, one side fixedly connected with second rubber pad that the guide bar was kept away from to the V-arrangement grip block.
Preferably, one side of the V-shaped clamping plate, which is close to the guide rod, is fixedly connected with two fixed seats, a cavity is formed in each fixed seat, one end of the guide rod is located in the cavity and is fixedly connected with a sliding block, and a second spring is arranged between the sliding block and the inner wall of the cavity.
Preferably, the upper and lower adjusting part includes second motor, lead screw and fly leaf, second motor fixed connection is at the upper surface of diaphragm, the one end of lead screw and the output fixed connection of second motor, the other end of lead screw runs through fly leaf and fixedly connected with stopper, lead screw and fly leaf threaded connection, the equal fixedly connected with slide bar in the left and right sides of fly leaf lower surface, the bottom of slide bar run through the diaphragm and with mounting panel fixed connection, slide bar and diaphragm sliding connection.
Preferably, coupling assembling includes connecting axle and connecting cylinder, the bottom and the connecting cylinder fixed connection of connecting axle, the top of connecting axle and the lower fixed surface of moment detector are connected, a plurality of electric putter of the even fixedly connected with of inner wall circumference of connecting cylinder, electric putter's flexible end fixedly connected with grip block, electric putter's one side fixedly connected with slipmat is kept away from to the grip block.
The friction force detection method of the servo driving system comprises the following steps:
1. the servo motor is placed in a placing hole in the placing disc from the front of the rack, then the first motor drives the second gear to rotate, the second gear is matched with the first gear in the rotating process and can drive the rotating shaft to rotate, the rotating shaft can drive the placing disc to rotate in the rotating process, the placing disc can drive the servo motor in the placing hole to rotate to the position below the connecting assembly in the rotating process, the arc-shaped block extrudes the movable block to move towards the placing disc, the movable block can compress the first spring and drive the guide rod to slide towards the placing hole in the moving process, meanwhile, the guide rod drives the sliding block to slide in the cavity and compress the second spring, the fixing seat drives the V-shaped clamping plate to move through restoring force of the second spring until the servo motor is fixed between the V-shaped clamping plate and the V-shaped groove, and at the moment, a main shaft of the servo motor is located right below the connecting assembly.
2. The second motor drives the screw rod to rotate, the screw rod is in threaded connection with the movable plate, the movable plate and the slide rod can be driven to move downwards by the screw rod in the rotating process, the mounting plate and the test motor can be driven to move by the slide rod in the moving process, the connecting cylinder on the connecting assembly can be sleeved on a main shaft of the servo motor by the test motor in the moving process, then the electric push rod is opened to extend to drive the clamping block to move, and the main shaft of the servo motor is clamped and fixed by the clamping block through the anti-slip pad in the moving process.
3. Then, the testing motor is turned on to drive the torque detector to rotate, the torque detector can drive the connecting shaft and the connecting cylinder to rotate in the rotating process, the connecting cylinder is fixed with the main shaft of the servo motor, the connecting cylinder can drive the main shaft of the servo motor to rotate in the rotating process, when the upper surface of the torque detector is subjected to the torque force of the testing motor, the numerical value on the torque detector can change, and when the testing motor drives the main shaft to rotate from rest, the maximum static friction force of the main shaft rotation can be judged by observing the maximum numerical value of the torque sensor.
4. And finally, placing the disc to continue rotating to enable the detected servo motor to rotate to the rear side of the rack, enabling the movable block to be separated from the arc-shaped block, enabling the V-shaped clamping plate to loosen the servo motor through restoring force of the first spring and the second spring, taking out the detected servo motor from the rear side of the rack, and simultaneously placing the servo motor on the front side of the disc to rotate to the lower side of the connecting assembly to continue testing to achieve continuous detection of the servo motor.
(III) advantageous effects
Compared with the prior art, the invention provides a friction force detection device and a friction force detection method of a servo driving system, which have the following beneficial effects:
1. the friction force detection device and the friction force detection method of the servo driving system drive the second gear to rotate through the first motor, the second gear can drive the rotating shaft and the placing disc to rotate in the rotating process in cooperation with the first gear, the placing disc can drive the servo motor in the placing hole to rotate to the position below the connecting assembly in the rotating process, the arc-shaped block extrudes the movable block to move towards the placing disc, the movable block can compress the first spring and drive the guide rod to slide towards the placing hole in the moving process, meanwhile, the guide rod drives the sliding block to slide in the cavity and compress the second spring, the fixing base drives the V-shaped clamping plate to move through the restoring force of the second spring until the servo motor is fixed between the V-shaped clamping plate and the V-shaped groove, and therefore the connecting assembly and a main shaft of the servo motor can be fixed conveniently.
2. The friction force detection device and the friction force detection method of the servo driving system drive the lead screw to rotate through the second motor, the lead screw can drive the movable plate and the slide rod to move downwards in the rotating process, the slide rod can drive the mounting plate and the test motor to move in the moving process, the test motor can enable the connecting cylinder on the connecting assembly to be sleeved on the main shaft of the servo motor in the moving process, then the electric push rod is opened to extend to drive the clamping block to move to clamp and fix the main shaft of the servo motor, finally the test motor is opened to drive the moment detector, the connecting shaft and the connecting cylinder to rotate, the connecting cylinder is fixed with the main shaft of the servo motor, the connecting cylinder can drive the main shaft of the servo motor to rotate in the rotating process, when the upper surface of the moment detector is subjected to torsion of the detection motor, the numerical value on the moment detector can change, and when the test motor drives the main shaft to rotate from rest to rotation, the maximum numerical value of the moment sensor is observed, and the maximum static friction force of the main shaft rotation can be judged.
3. This servo drive system's frictional force detection device and detection method, place the dish at last and continue to rotate and make the rear side of servo motor rotatory to the frame after the detection, the movable block can break away from the arc piece this moment, the restoring force through first spring and second spring makes V clamp plate loosen servo motor, then take out the servo motor after will detecting from the rear side of frame, the servo motor of placing the dish front side simultaneously can rotate the below of coupling assembling and continue to test, realize servo motor's continuous detection, thereby operation steps have been reduced, thereby detection efficiency is improved.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic top cross-sectional view of the present invention;
FIG. 4 is an enlarged schematic view at A of FIG. 3 of the present invention;
FIG. 5 is a cross-sectional view of the fixing base of the present invention;
FIG. 6 is a perspective view of the tray of the present invention;
FIG. 7 is a perspective view of the V-shaped clamping plate of the present invention;
FIG. 8 is a perspective view of the connection assembly of the present invention;
fig. 9 is an internal schematic view of the connector barrel of the present invention.
In the figure: 1. a frame; 2. a torque detector; 3. a rotating assembly; 4. placing a tray; 5. placing holes; 6. a support frame; 7. fixing the clamping assembly; 8. an up-down adjustment assembly; 9. mounting a plate; 10. testing the motor; 11. a connection assembly; 101. installing a box; 102. supporting legs; 103. an anti-slip seat; 301. a rotating shaft; 302. a first motor; 303. a first gear; 304. a second gear; 501. a V-shaped groove; 502. a first rubber pad; 601. a transverse plate; 602. a vertical plate; 701. an arc-shaped block; 702. a movable block; 703. a first spring; 704. a guide rod; 705. a V-shaped clamping plate; 706. a second rubber pad; 707. a fixed seat; 708. a cavity; 709. a slider; 710. a second spring; 801. a second motor; 802. a screw rod; 803. a movable plate; 804. a limiting block; 805. a slide bar; 1101. a connecting cylinder; 1102. an electric push rod; 1103. a clamping block; 1104. a connecting shaft; 1105. a non-slip mat.
Detailed Description
For better understanding of the purpose, structure and function of the present invention, the following describes a friction force detecting device, a friction force detecting method and a friction force detecting method of a servo driving system in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1-9, the invention provides a friction force detection device of a servo drive system, which comprises a rack 1 and a torque detector 2, wherein a placing disc 4 is arranged on the upper surface of the rack 1 through a rotating assembly 3, a fourth placing hole 5 is formed in the middle of the upper surface of the placing disc 4, a support frame 6 is arranged on the upper surface of the rack 1, a fixed clamping assembly 7 is arranged between the placing hole 5 and the support frame 6, a mounting plate 9 is arranged between the support frame 6 and the rack 1 through an up-down adjusting assembly 8, a test motor 10 is fixedly connected to the left side of the lower surface of the mounting plate 9, the output end of the test motor 10 is fixedly connected with the torque detector 2, a connecting assembly 11 is fixedly connected to the lower surface of the torque detector 2, the connecting assembly 11 is fixed with a spindle of the servo motor, the test motor 10 drives the torque detector 2 to rotate, the torque detector 2 can drive a spindle of the servo motor to rotate in the rotating process, and accordingly the maximum static friction force of the spindle rotation is judged through the value of the torque detector 2;
specifically, the rack 1 comprises an installation box 101 and four supporting legs 102, the top ends of the supporting legs 102 are fixedly connected with the lower surface of the installation box 101, the bottom ends of the supporting legs 102 are fixedly connected with anti-skidding seats 103, the supporting legs 102 provide stable support for the installation box 101, the contact area between the supporting legs 102 and the ground can be increased through the anti-skidding seats 103, and meanwhile, the friction coefficient between the supporting legs 102 and the ground can also be increased;
specifically, the rotating assembly 3 includes a rotating shaft 301, a first motor 302, a first gear 303 and a second gear 304, the top end of the rotating shaft 301 is fixedly connected to the middle of the lower surface of the placing disc 4, the bottom end of the rotating shaft 301 penetrates through the inner top wall of the installation box 101 and is fixedly connected to the first gear 303, the rotating shaft 301 is rotatably connected to the installation box 101 through a bearing, the first motor 302 is fixedly connected to the inner bottom wall of the installation box 101, the output end of the first motor 302 is fixedly connected to the second gear 304, the second gear 304 is meshed with the first gear 303 and is connected to the first gear 303, the second gear 304 is driven by the first motor 302 to rotate, the rotating shaft 304 is matched with the first gear 303 in the rotating process to drive the rotating shaft 301 to rotate, the rotating shaft 301 can drive the placing disc 4 to rotate in the rotating process, and the placing disc 4 can drive the servo motor in the placing hole 5 to rotate below the connecting assembly 11 in the rotating process;
the V-shaped groove 501 is formed in one side, close to the middle of the placing disc 4, of the placing hole 5, the inner wall of the V-shaped groove 501 is fixedly connected with the first rubber pad 502, the detected servo motor is conveniently limited by the V-shaped groove 501, the friction coefficient between the first rubber pad 502 and the servo motor is increased, and the first rubber pad is better fixed in the placing hole 5;
the supporting frame 6 comprises a transverse plate 601 and two vertical plates 602, the bottom ends of the two vertical plates 602 are respectively fixedly connected with the left side and the right side of the upper surface of the installation box 101, the top ends of the two vertical plates 602 are respectively fixedly connected with the left end and the right end of the transverse plate 601, and the transverse plate 601 is used for conveniently fixing the second motor 801, so that the installation plate 9 drives the test motor 10 to move up and down;
further, the fixed clamping assembly 7 comprises an arc block 701, a movable block 702 and two first springs 703, the arc block 701 is fixedly connected with a vertical plate 602 on the left side, one side of the movable block 702, which is far away from the arc block 701, is fixedly connected with two guide rods 704, one ends of the guide rods 704 penetrate through the inner wall of the placing hole 5 and are provided with V-shaped clamping plates 705, the guide rods 704 are slidably connected with the placing disc 4, the first springs 703 are sleeved on the outer surfaces of the guide rods 704, one ends of the first springs 703 are fixedly connected with the movable block 702, the other ends of the first springs 703 are fixedly connected with the outer surface of the placing disc 4, one sides of the V-shaped clamping plates 705, which are far away from the guide rods 704, are fixedly connected with second rubber pads 706, the placing disc 4 enables the arc block 701 to extrude the movable block 702 to move towards the placing disc 4 in the rotating process, the movable block 702 can compress the first springs 703 and drive the guide rods 704 to slide towards the placing hole 5 in the moving process, and the guide rods 704 drive the V-shaped clamping plates 705 to move so as to fix the servo motor between the V-shaped clamping plates and the V-shaped clamping plates 501, and the main shaft 705 of the servo motor is located below the connecting assembly 11;
example 2
Referring to fig. 1 to 9, the present invention provides a friction force detecting device of a servo driving system, which is the same as the first embodiment and will not be described again, except that the up-down adjusting assembly 8 includes a second motor 801, a lead screw 802 and a movable plate 803, the second motor 801 is fixedly connected to the upper surface of the horizontal plate 601, one end of the lead screw 802 is fixedly connected to the output end of the second motor 801, the other end of the lead screw 802 penetrates through the movable plate 803 and is fixedly connected to a limit block 804, the lead screw 802 is in threaded connection with the movable plate 803, the left and right sides of the lower surface of the movable plate 803 are both fixedly connected to a slide bar 805, the bottom end of the slide bar 805 penetrates through the horizontal plate 601 and is fixedly connected to the mounting plate 9, the slide bar 805 is in sliding connection with the horizontal plate 601, the lead screw 802 is driven to rotate by the second motor 801, because the lead screw 802 is in threaded connection with the movable plate 803, the lead screw 802 can drive the movable plate 803 and the slide bar 805 to move downward in the rotating process, the slide bar 805 can drive the mounting plate 1101 and the test motor 10 to move, and the connecting tube on the connecting assembly 11 can be sleeved on the main shaft of the servo motor in the moving process;
further, the connecting assembly 11 includes a connecting shaft 1104 and a connecting cylinder 1101, the bottom end of the connecting shaft 1104 is fixedly connected with the connecting cylinder 1101, the top end of the connecting shaft 1104 is fixedly connected with the lower surface of the torque detector 2, a plurality of electric push rods 1102 are uniformly and fixedly connected with the circumference of the inner wall of the connecting cylinder 1101, clamping blocks 1103 are fixedly connected with the telescopic ends of the electric push rods 1102, anti-slip pads 1105 are fixedly connected to one sides of the clamping blocks 1103 away from the electric push rods 1102, the connecting cylinder 1101 is sleeved on a spindle of the servo motor, the electric push rods 1102 are opened to extend to drive the clamping blocks 1103 to move, and the clamping blocks 1103 clamp the spindle of the servo motor through the anti-slip pads 1105 in the moving process.
Referring to fig. 5, in order to better fix the detected servo motor, two fixing seats 707 may be fixedly connected to one side of the V-shaped clamping plate 705 close to the guide rod 704, a cavity 708 is formed inside the fixing seat 707, one end of the guide rod 704 is located inside the cavity 708 and is fixedly connected to a sliding block 709, a second spring 710 is installed between the sliding block 709 and an inner wall of the cavity 708, and the fixing seat 707 drives the V-shaped clamping plate 705 to move by the second spring 710, so that the servo motor is prevented from being damaged when the V-shaped clamping plate 705 is fixed.
The friction force detection method of the servo drive system comprises the following steps:
1. firstly, a servo motor is placed in a placing hole 5 in a placing disc 4 from the front of a rack 1, then a first motor 302 drives a second gear 304 to rotate, the second gear 304 is matched with a first gear 303 in the rotating process to drive a rotating shaft 301 to rotate, the rotating shaft 301 can drive the placing disc 4 to rotate in the rotating process, the placing disc 4 can drive the servo motor in the placing hole 5 to rotate to the position below a connecting component 11 in the rotating process, at the moment, an arc block 701 extrudes a movable block 702 to move towards the placing disc 4, the movable block 702 can compress a first spring 703 and drive a guide rod 704 to slide towards the placing hole 5 in the moving process, meanwhile, the guide rod 704 drives a sliding block to slide in a cavity 708 and compress a second spring 710, a fixed seat 707 drives a V-shaped clamping plate 705 to move through the restoring force of the second spring 710 until the servo motor is fixed between the V-shaped clamping plate 705 and a V-shaped groove 501, and at the moment, a main shaft of the servo motor is located right below the connecting component 709 11.
2. Then, the second motor 801 drives the lead screw 802 to rotate, and as the lead screw 802 is in threaded connection with the movable plate 803, the lead screw 802 can drive the movable plate 803 and the sliding rod 805 to move downward in the rotating process, the sliding rod 805 can drive the mounting plate 9 and the test motor 10 to move in the moving process, the test motor 10 can enable the connecting cylinder 1101 on the connecting assembly 11 to be sleeved on the spindle of the servo motor in the moving process, then the electric push rod 1102 is opened to extend to drive the clamping block 1103 to move, and the clamping block 1103 clamps and fixes the spindle of the servo motor through the anti-slip pad 1105 in the moving process.
3. Then, the test motor 10 is turned on to drive the torque detector 2 to rotate, the torque detector 2 can drive the connecting shaft 1104 and the connecting cylinder 1101 to rotate in the rotating process, the connecting cylinder 1101 is fixed with a main shaft of the servo motor, the connecting cylinder 1101 can drive the main shaft of the servo motor to rotate in the rotating process at the moment, when the upper surface of the torque detector 2 is subjected to the torsion of the test motor 10, the numerical value on the torque detector 2 can change, and therefore when the test motor 10 drives the main shaft to rotate from rest, the maximum static friction force of the main shaft rotation can be judged by observing the maximum numerical value of the torque sensor 2.
4. Finally, the placing disc 4 continuously rotates to enable the detected servo motor to rotate to the rear side of the rack 1, at the moment, the movable block 702 can be separated from the arc-shaped block 701, the V-shaped clamping plate 705 loosens the servo motor through the restoring force of the first spring 703 and the second spring 710, then the detected servo motor is taken out from the rear side of the rack 1, and meanwhile, the servo motor at the front side of the placing disc 4 can rotate to the position below the connecting assembly 11 to continuously test, so that the continuous detection of the servo motor is realized.
The working principle of the invention is as follows: firstly, a servo motor is placed in a placing hole 5 on a placing disc 4 from the front of a machine frame 1, then a first motor 302 drives a second gear 304 to rotate, the second gear 304 is matched with a first gear 303 in the rotating process to drive a rotating shaft 301 to rotate, the rotating shaft 301 can drive the placing disc 4 to rotate in the rotating process, the placing disc 4 can drive the servo motor in the placing hole 5 to rotate to the lower part of a connecting component 11 in the rotating process, at the moment, an arc block 701 extrudes a movable block 702 to move towards the placing disc 4, the movable block 702 can compress a first spring 703 and drive a guide rod 704 to slide towards the placing hole 5 in the moving process, meanwhile, the guide rod 704 drives a sliding block 709 to slide in a cavity 708 and compress a second spring 710, and a fixing seat 707 drives a V-shaped clamping plate 705 to move through the restoring force of the second spring 710, until the servo motor is fixed between the V-shaped clamping plate 705 and the V-shaped groove 501, the spindle of the servo motor is located right below the connecting assembly 11, then the second motor 801 drives the lead screw 802 to rotate, because the lead screw 802 is in threaded connection with the movable plate 803, the lead screw 802 can drive the movable plate 803 and the sliding rod 805 to move downwards in the rotating process, the sliding rod 805 can drive the mounting plate 9 and the test motor 10 to move in the moving process, the test motor 10 can enable the connecting cylinder 1101 on the connecting assembly 11 to be sleeved on the spindle of the servo motor in the moving process, then the electric push rod 1102 is opened to extend to drive the clamping block 1103 to move, the clamping block 1103 clamps and fixes the spindle of the servo motor through the anti-skid pad 1105 in the moving process, then the test motor 10 is opened to drive the torque detector 2 to rotate, the torque detector 2 can drive the connecting shaft 1104 and the connecting cylinder to rotate in the rotating process, because the connecting cylinder 1101 is fixed with the main shaft of the servo motor, the connecting cylinder 1101 can drive the main shaft of the servo motor to rotate in the rotating process, when the upper surface of the torque detector 2 is subjected to the torsion of the detection motor 10, the numerical value on the torque detector 2 changes, and thus when the test motor 10 drives the main shaft to rotate from rest, the maximum static friction force of the main shaft rotation can be judged by observing the maximum numerical value of the torque sensor 2. Finally, the placing disc 4 continues to rotate to enable the detected servo motor to rotate to the rear side of the rack 1, at the moment, the movable block 702 can be separated from the arc-shaped block 701, the V-shaped clamping plate 705 loosens the servo motor through restoring force of the first spring 703 and the second spring 710, then the detected servo motor is taken out from the rear side of the rack 1, meanwhile, the servo motor placed on the front side of the placing disc 4 can rotate to the position below the connecting assembly 11 to continue testing, continuous detection of the servo motor is achieved, operation steps are reduced, and detection efficiency is improved.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a friction detection device method of servo actuating system, includes frame (1) and moment detector (2), its characterized in that: the upper surface of frame (1) is provided with through rotating assembly (3) and places dish (4), the upper surface middle part of placing dish (4) has been seted up the fourth and has been placed hole (5), the upper surface of frame (1) is provided with support frame (6), it is provided with fixed centre gripping subassembly (7) to place between hole (5) and support frame (6), be provided with between support frame (6) and frame (1) through adjusting part (8) from top to bottom mounting panel (9), the lower surface left side fixedly connected with test motor (10) of mounting panel (9), the output and the moment detector (2) fixed connection of test motor (10), the lower fixed surface of moment detector (2) is connected with coupling assembling (11).
2. A friction force detecting device of a servo drive system according to claim 1, wherein: the rack (1) comprises an installation box (101) and four supporting legs (102), the top ends of the supporting legs (102) are fixedly connected with the lower surface of the installation box (101), and the bottom ends of the supporting legs (102) are fixedly connected with anti-skidding seats (103).
3. A friction force detecting device of a servo drive system according to claim 2, wherein: rotating assembly (3) include rotation axis (301), first motor (302), first gear (303) and second gear (304), the top of rotation axis (301) and the lower surface middle part fixed connection who places dish (4), the bottom of rotation axis (301) run through the interior roof of install bin (101) and with first gear (303) fixed connection, rotation axis (301) are passed through the bearing and are rotated with install bin (101) and are connected, first motor (302) fixed connection is at the interior diapire of install bin (101), the output and the second gear (304) fixed connection of first motor (302), second gear (304) are connected with first gear (303) meshing.
4. A friction force detecting device of a servo drive system according to claim 3, wherein: one side of the placing hole (5) close to the middle of the placing disc (4) is provided with a V-shaped groove (501), and the inner wall of the V-shaped groove (501) is fixedly connected with a first rubber pad (502).
5. The friction force detecting device of a servo drive system according to claim 4, wherein: support frame (6) are including diaphragm (601) and two riser (602), two the bottom of riser (602) respectively with install bin (101) upper surface's left and right sides fixed connection, two the top of riser (602) respectively with both ends fixed connection about diaphragm (601).
6. The friction force detecting device of a servo drive system according to claim 5, wherein: fixed centre gripping subassembly (7) include arc piece (701), movable block (702) and two first springs (703), arc piece (701) and left riser (602) fixed connection, one side fixedly connected with two guide bars (704) of arc piece (701) are kept away from in movable block (702), the one end of guide bar (704) is run through the inner wall of placing hole (5) and is provided with V-shaped clamping plate (705), guide bar (704) with place dish (4) sliding connection, the surface at guide bar (704) is established in first spring (703) cover, the one end and the movable block (702) fixed connection of first spring (703), the other end and the surface fixed connection of placing dish (4) of first spring (703), one side fixedly connected with second rubber pad (706) that guide bar (704) were kept away from in V-shaped clamping plate (705).
7. A friction force detecting device of a servo drive system according to claim 6, wherein: one side, close to the guide rod (704), of the V-shaped clamping plate (705) is fixedly connected with two fixed seats (707), a cavity (708) is formed in each fixed seat (707), one end of the guide rod (704) is located in each cavity (708) and is fixedly connected with a sliding block (709), and a second spring (710) is installed between each sliding block (709) and the inner wall of each cavity (708).
8. A friction force detecting device of a servo drive system according to claim 7, wherein: adjusting part (8) includes second motor (801), lead screw (802) and fly leaf (803) from top to bottom, second motor (801) fixed connection is at the upper surface of diaphragm (601), the one end of lead screw (802) and the output fixed connection of second motor (801), the other end of lead screw (802) runs through fly leaf (803) and fixedly connected with stopper (804), lead screw (802) and fly leaf (803) threaded connection, the equal fixedly connected with slide bar (805) of the left and right sides of fly leaf (803) lower surface, the bottom of slide bar (805) runs through diaphragm (601) and with mounting panel (9) fixed connection, slide bar (805) and diaphragm (601) sliding connection.
9. A friction force detecting device of a servo drive system according to claim 8, wherein: the connecting assembly (11) comprises a connecting shaft (1104) and a connecting cylinder (1101), the bottom end of the connecting shaft (1104) is fixedly connected with the connecting cylinder (1101), the top end of the connecting shaft (1104) is fixedly connected with the lower surface of the moment detector (2), the circumference of the inner wall of the connecting cylinder (1101) is uniformly and fixedly connected with a plurality of electric push rods (1102), the telescopic ends of the electric push rods (1102) are fixedly connected with clamping blocks (1103), and one sides of the clamping blocks (1103) far away from the electric push rods (1102) are fixedly connected with anti-skidding pads (1105).
10. A method of detecting friction in a servo drive system as claimed in any one of claims 1 to 9, wherein said method of use comprises:
1. firstly, a servo motor is placed in a placing hole (5) in a placing disc (4) from the front of a rack (1), then a first motor (302) drives a second gear (304) to rotate, the second gear (304) is matched with a first gear (303) in the rotating process to drive a rotating shaft (301) to rotate, the rotating shaft (301) can drive the placing disc (4) to rotate in the rotating process, the placing disc (4) can drive the servo motor in the placing hole (5) to rotate to the lower side of a connecting assembly (11) in the rotating process, at the moment, an arc-shaped block (701) extrudes a movable block (702) to move towards the placing disc (4), the movable block (702) can compress a first spring (703) and drive a guide rod (704) to slide towards the placing hole (5) in the moving process, meanwhile, the guide rod (704) drives a sliding block (709) to slide in a cavity (708) and compress a second spring (710), a fixing seat (707) drives the V-shaped clamping plate (705) to move until the connecting assembly (705) is located below a main shaft V-shaped groove of the servo motor (501), and the main shaft (11) is located below the main shaft (11).
2. Then the second motor (801) drives the screw rod (802) to rotate, the screw rod (802) is in threaded connection with the movable plate (803), the movable plate (803) and the sliding rod (805) can be driven to move downwards by the screw rod (802) in the rotating process, the mounting plate (9) and the testing motor (10) can be driven to move by the sliding rod (805) in the moving process, the connecting cylinder (1101) on the connecting assembly (11) can be sleeved on the spindle of the servo motor in the moving process of the testing motor (10), then the electric push rod (1102) is opened to extend to drive the clamping block (1103) to move, and the spindle of the servo motor is clamped and fixed by the clamping block (1103) through the anti-slip pad (1105) in the moving process.
3. Then, a test motor (10) is started to drive a torque detector (2) to rotate, the torque detector (2) can drive a connecting shaft (1104) and a connecting cylinder (1101) to rotate in the rotating process, the connecting cylinder (1101) is fixed with a spindle of a servo motor, the connecting cylinder (1101) can drive the spindle of the servo motor to rotate in the rotating process, when the upper surface of the torque detector (2) is subjected to torsion of the test motor (10), the value on the torque detector (2) can change, and when the test motor (10) drives the spindle to rotate from rest to rest, the maximum static friction force of the spindle rotation can be judged by observing the maximum value of a torque sensor (2).
4. Finally, the placing disc 4 continuously rotates to enable the detected servo motor to rotate to the rear side of the rack (1), at the moment, the movable block (702) can be separated from the arc-shaped block (701), the V-shaped clamping plate (705) loosens the servo motor through restoring force of the first spring (703) and the second spring (710), then the detected servo motor is taken out from the rear side of the rack (1), and meanwhile, the servo motor placed on the front side of the placing disc (4) can rotate to the position below the connecting assembly (11) to continuously test, so that continuous detection of the servo motor is achieved.
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| CN202210901410.8A CN115235674A (en) | 2022-07-28 | 2022-07-28 | Friction force detection device and method of servo drive system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115480200A (en) * | 2022-11-14 | 2022-12-16 | 武汉纬希智能科技有限公司 | Photoelectric detection equipment |
| CN116714373A (en) * | 2023-05-08 | 2023-09-08 | 惠州市康利印刷有限公司 | Packaging material production printing is with even air brushing device |
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2022
- 2022-07-28 CN CN202210901410.8A patent/CN115235674A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115480200A (en) * | 2022-11-14 | 2022-12-16 | 武汉纬希智能科技有限公司 | Photoelectric detection equipment |
| CN115480200B (en) * | 2022-11-14 | 2023-03-07 | 武汉纬希智能科技有限公司 | Photoelectric detection equipment |
| CN116714373A (en) * | 2023-05-08 | 2023-09-08 | 惠州市康利印刷有限公司 | Packaging material production printing is with even air brushing device |
| CN116714373B (en) * | 2023-05-08 | 2024-03-12 | 惠州市康利印刷有限公司 | Packaging material production printing is with even air brushing device |
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