CN117760479B - Pull wire encoder test equipment and test method - Google Patents
Pull wire encoder test equipment and test method Download PDFInfo
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- CN117760479B CN117760479B CN202410195868.5A CN202410195868A CN117760479B CN 117760479 B CN117760479 B CN 117760479B CN 202410195868 A CN202410195868 A CN 202410195868A CN 117760479 B CN117760479 B CN 117760479B
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Abstract
The invention discloses a testing device and a testing method for a pull wire encoder, comprising the following steps: a test rack; the test frame is provided with an objective table and a fixed tool, the stay wire encoder is arranged on the fixed tool, one side of the fixed tool is provided with a measuring mechanism for clamping a wire rope of the stay wire encoder, one side of the wire rope of the stay wire encoder is connected with a wire receiving mechanism, and the measured wire rope is wound up; the measuring mechanism is arranged on the moving mechanism, moves along the arrangement direction of the moving mechanism, drives the thread rope of the thread pulling encoder to extend outwards for measurement, and simultaneously the thread winding mechanism is used for winding threads; the tension compensation mechanism is arranged at one end of the moving mechanism, which is close to the wire winding mechanism, and is used for carrying out tension compensation in the detection process so as to balance the tension in the wire drawing process; the device realizes the segmented high-precision measurement of the long-stroke length measurement in a limited space, reduces the cost, reduces the space occupation rate, and is applicable to the calibration test of the stay wire encoder with any length.
Description
Technical Field
The invention relates to the field of testing of a pull-wire encoder, in particular to a device and a method for testing the pull-wire encoder.
Background
The calibration of the stay wire sensor is carried out according to the calibration standard of the JJF 1305-2011 linear displacement sensor, and the calibration method given in the standard is that a laser interferometer is matched with a length measuring machine for calibration.
The method requires that the optical path of the laser interferometer is installed and regulated on a length measuring machine, the wire rope in the wire-drawing sensor is tied on a movable workbench by utilizing a guide rail and related components of the length measuring machine, the Abbe principle is required to be met during installation, meanwhile, the wire rope is required to be aligned with the moving axis of the workbench of the sensor during linear motion, and when the workbench moves, the wire rope stretches or contracts to drive the hub to rotate, so that the sensor outputs an electric signal, and the reading is that the electric signal output by the laser interferometer is read.
Since the whole length of the wire pulling encoder needs to be detected and calibrated, the length of the guide rail of the length measuring machine is required to be long. The adoption of the expensive and precise large-scale comprehensive equipment has large space occupation rate, and the measurement of the length of tens of meters can be met by a large-scale factory building.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a testing device and a testing method for a pull-wire encoder.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a pull-wire encoder testing apparatus comprising:
A test rack;
An objective table is arranged on the test frame, a fixed tool is arranged on the objective table, a stay wire encoder is arranged on the fixed tool, a measuring mechanism is arranged on one side of the fixed tool to clamp the rope of the stay wire encoder,
One side of the rope pulling encoder is connected with a rope receiving mechanism, and the measured rope is wound up;
the measuring mechanism is arranged on the moving mechanism, moves along the arrangement direction of the moving mechanism, drives the rope of the stay wire encoder to extend outwards for measurement, and simultaneously the wire collecting mechanism collects wires;
and a tension compensation mechanism is arranged at one end of the moving mechanism, which is close to the wire collecting mechanism, and is used for carrying out tension compensation on the tension of the wire drawing encoder in the detection process, so that the tension in the wire drawing process is balanced.
As a further description of the above technical solution: the fixed frock includes: the base, the first backup pad is vertically connected to one side of base, one side installation locating plate of first backup pad one side terminal surface installation of locating plate the encoder of acting as go-between, through adjusting the mounted position of locating plate, adjust the height of the encoder of acting as go-between.
As a further description of the above technical solution: the moving mechanism comprises a sliding rail, limiting blocks are arranged on two sides of the sliding rail, a first moving assembly is arranged on the sliding rail, and the first moving assembly reciprocates in the setting range of the limiting blocks.
As a further description of the above technical solution: the measuring mechanism comprises a first mounting plate, a first clamp is mounted on one side of the first mounting plate, a positioning protection film is arranged at the output end of the first clamp, and the positioning protection film is arranged on the inner side end face of the first clamp and is in contact with the cotton rope.
As a further description of the above technical solution: still be provided with the second on the slide rail and remove the subassembly, set up on the second removes the subassembly pulling force compensation mechanism, pulling force compensation mechanism includes the second mounting panel, the second anchor clamps are installed to one side of second mounting panel, the output of second anchor clamps sets up and carries out the centre gripping to the cotton rope.
As a further description of the above technical solution: the wire winding mechanism comprises a second supporting plate, a third clamp is arranged on one side, close to the tension compensation mechanism, of the second supporting plate, a third mounting plate is connected to the other side through bolts, a wire winding box is arranged on the inner side of the wire winding box through a rotating shaft and a bearing connecting wire wheel above the third mounting plate.
As a further description of the above technical solution: the inner side end face of the wire wheel is provided with a stepped groove, the inner side of the wire wheel is provided with a pressing plate, the pressing plate is provided with a sliding groove for connecting with a sliding block, the sliding block is connected with the pressing plate through a spring, and the wire rope penetrates through the sliding block and is connected with the wire collecting box.
As a further description of the above technical solution: and a coil spring is further arranged between the third mounting plate and the wire wheel, and the rotating shaft penetrates through the wire wheel and the third mounting plate and is connected with a clamp spring on the inner side of the third mounting plate.
The method is suitable for the testing equipment of any one of the technical schemes, and comprises the following steps:
S1: resetting and calibrating, namely fixing a rope of a wire drawing encoder on a first clamp for clamping, controlling a first moving assembly to return to an original point, setting the wire drawing encoder to zero, setting the total length of the wire drawing encoder, loosening a third clamp, and connecting a wire collecting head of a wire collecting mechanism with the rope;
S2: the stay wire measurement, setting a positioning threshold value of a first moving assembly, driving the first moving assembly, calculating the residual length of a stay wire encoder according to the pulled length, updating the pulled length after the first moving assembly performs moving positioning, judging whether the pulled length is smaller than the total length, if so, enabling a first clamp and a third clamp to act, enabling the first moving assembly to return to the original point, returning to the step S1, if not, judging that all the ropes are pulled out or errors exist in precision, and entering the step S3;
S3: and (3) taking up the pulled-out wire rope, initializing the recovery length to enable the recovery length to be equal to the residual length, calculating the residual recovery length after the first moving assembly returns to the original point, judging whether the residual recovery length is larger than 0, if so, continuing to carry out recovery, clamping the third clamp, loosening the first clamp, moving the first moving assembly to the position of the positioning threshold value, clamping the first clamp, loosening the third clamp, returning the first moving assembly to the original point, if not, completing the taking-up, and returning to the step (S2) for repeated test or ending test.
As a further description of the above technical solution: the first moving assembly and the second moving assembly have the same positioning threshold value, when the first moving assembly moves and positions, the second moving assembly returns to the original point, and the first clamp of the first moving assembly and the second clamp of the second moving assembly have the same action state, so that the stress balance of the rope during pulling out or winding up is ensured.
The technical scheme has the following advantages or beneficial effects:
1. the first moving assembly is designed to drive the measuring mechanism to measure, and the second moving assembly is designed to drive the tension compensation mechanism to move, so that the stress balance of the stay cord in the measuring process is ensured, and the sectional high-precision measurement of the length measurement of the large-stroke stay cord encoder in a limited space is realized.
2. The cost is reduced, the space occupation ratio is reduced, and the space occupied by the existing measuring method is in direct proportion to the length of the measured stay cord, for example, 20 meters of tracks are needed for measuring 20 meters of stay cords. The track length of the device is only 3.3 meters, and the stay wire encoder for measuring any length can be realized by a segmented measurement method.
Drawings
FIG. 1 is a perspective view of a test apparatus according to the present invention;
FIG. 2 is a front view of a test apparatus according to the present invention;
FIG. 3 is a top view of a test apparatus according to the present invention;
FIG. 4 is an enlarged view of a portion of a fixture according to the present invention;
FIG. 5 is an enlarged view of a portion of the tension compensating mechanism of the present invention;
FIG. 6 is an enlarged view of a portion of the wire takeup mechanism of the present invention;
FIG. 7 is a cross-sectional view of the wire takeup mechanism of the present invention;
FIG. 8 is a flow chart of a testing method according to the present invention.
Legend description:
1. A test rack; 2. an objective table; 3. fixing the tool; 31. a base; 32. a first support plate; 33. a positioning plate; 4. a stay wire encoder; 5. a measuring mechanism; 51. a first mounting plate; 52. a first clamp; 53. positioning a protective film; 6. a wire winding mechanism; 61. a second support plate; 62. a third clamp; 63. a third mounting plate; 64. a rotating shaft; 65. a bearing; 66. a wire wheel; 661. a pressing plate; 662. a slide block; 663. a spring; 67. a wire collecting box; 68. a coil spring; 69. clamping springs; 7. a moving mechanism; 71. a slide rail; 72. a limiting block; 73. a first moving assembly; 74. a second moving assembly; 8. a tension compensation mechanism; 81. a second mounting plate; 82. and a second clamp.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, one embodiment provided by the present invention is: a pull-wire encoder testing apparatus comprising: a test rack 1; the test frame 1 is provided with an objective table 2, a fixed tool 3 is arranged on the objective table 2, a stay wire encoder 4 is arranged on the fixed tool 3, one side of the fixed tool 3 is provided with a measuring mechanism 5 for clamping a wire rope of the stay wire encoder 4, one side of the wire rope of the stay wire encoder 4 is connected with a wire receiving mechanism 6, and the measured wire rope is wound up; the measuring mechanism 5 is arranged on the moving mechanism 7, moves along the arrangement direction of the moving mechanism 7, drives the rope of the stay wire encoder 4 to extend outwards for measurement, and simultaneously the wire collecting mechanism 6 collects wires; the end of the moving mechanism 7, which is close to the wire collecting mechanism 6, is provided with a tension compensation mechanism 8 for compensating the tension of the wire drawing encoder 4 in the detection process, so that the tension in the wire drawing process is balanced.
In this embodiment, the pull wire encoder 4 is mounted on the positioning plate 33, the relative position between the positioning plate 33 and the first support plate 32 is adjusted, the setting height of the pull wire encoder 4 is adjusted, the wire rope of the pull wire encoder 4 is connected with the wire winding head of the wire winding mechanism 6, in a natural state, the wire winding head can be pulled to move at a position close to the measuring mechanism 5, after the measuring mechanism 5 clamps the pull rope, the pull rope reciprocates along the setting direction of the moving mechanism 7 to perform length measurement, and in the measurement process, in order to avoid the phenomenon of sagging of the wire rope, the tension compensating mechanism 8 is designed to keep the stress balance of the wire rope in the moving measurement process.
The fixed frock 3 includes: the base 31, the first backup pad 32 is vertically connected to one side of base 31, and locating plate 33 is installed to one side of first backup pad 32, installs the encoder of acting as go-between 4 at the one side terminal surface of locating plate 33, through adjusting the mounted position of locating plate 33, adjusts the height of encoder of acting as go-between 4.
In this embodiment, the base 31 is connected with the objective table 2 through a screw, the objective table 2 is a marble plate, the base 31 is provided with a notch, which can be adjusted back and forth, the base 31 is connected with the first support plate 32 through a screw, the positioning plate 33 is mounted on one side of the first support plate 32 through a screw, the positioning plate 33 is matched with the first support plate 32 through a sliding block or a positioning hole, the mounting position of the positioning plate 33 can be adjusted, the wire encoder 4 is mounted on one side of the positioning plate 33, and the height of the wire encoder 4 is adjusted.
The moving mechanism 7 includes a slide rail 71, both sides of the slide rail 71 are provided with stopper blocks 72, a first moving assembly 73 is provided on the slide rail 71, and the first moving assembly 73 reciprocates within a setting range of the stopper blocks 72.
In this embodiment, the moving mechanism 7 includes a sliding rail 71, preferably a 3.3 meter power rail, on two sides of the sliding rail 71, a limiting block 72 is disposed, the first moving component 73 is specifically a motor control module, the motor control module includes a linear motor, the tail of the linear motor has encoder feedback position data, the precision is 5-10 um, the motor control module is disposed on the sliding rail 71, the movement on the sliding rail 71 is realized through a servo driver, the position positioning is performed through a left limit switch, a right limit switch and an origin proximity switch, the moving position of the first moving component 73 is confirmed, the movement is controlled through a PLC controller, a touch screen and a control switch, and the PLC controller is preferably a siemens controller S7-1200.
The linear motor control system also comprises a 10-inch touch screen, the touch screen is connected with the PLC and the wire drawing encoder 4, the PLC is controlled to act, the touch screen is connected with a CAN communication output port of the wire drawing encoder 4, and the reading of the wire drawing encoder 4 is fed back in real time. And forms a closed loop control with the control system.
The first moving assembly 73 is provided with the measuring mechanism 5, the measuring mechanism 5 comprises a first mounting plate 51, a first clamp 52 is mounted on one side of the first mounting plate 51, the output end of the first clamp 52 is provided with a positioning protection film 53, and the positioning protection film 53 is arranged on the inner side end surface of the first clamp 52 and is in contact with a rope.
In this embodiment, the measuring mechanism 5 is disposed on the first moving assembly 73, and is connected to the upper end surface of the first moving assembly 73 through the first mounting plate 51, the first clamp 52 is disposed on one side of the first mounting plate 51, and the height of the first clamp is the same as that of the wire encoder 4, so that the positioning protection film 53 below the first clamp 52 contacts with the pull wire and clamps the pull wire when clamping.
The slide rail 71 is further provided with a second moving assembly 74, the second moving assembly 74 is provided with a tension compensating mechanism 8, the tension compensating mechanism 8 comprises a second mounting plate 81, one side of the second mounting plate 81 is provided with a second clamp 82, and the output end of the second clamp 82 is used for clamping a rope.
In this embodiment, the second moving assembly 74 is provided with a tension compensation mechanism 8, which provides tension compensation when the measuring mechanism 5 measures the length of the pull rope, so that the pull rope is kept horizontal during the measurement process, the test precision is ensured, and the structure of the second clamp 821 is the same as that of the first clamp 52, so as to clamp and protect the pull rope.
When the tension compensation is carried out, the tension of the measured wire encoder 4 is measured by a tension meter, the torsion of the linear motor is configured in the servo driver according to the measured tension value, so that the tension is equal to the torsion of the linear motor, after the tension compensation is carried out, whether the tension is balanced or not is verified by observing whether the data of the wire encoder 4 changes when the first clamp 52 is clamped and loosened, and if the value changes greatly, the torsion fine adjustment of the linear motor can be carried out.
The wire winding mechanism 6 comprises a second support plate 61, a third clamp 62 is arranged on one side, close to the tension compensation mechanism 8, of the second support plate 61, a third mounting plate 63 is connected to the other side through bolts, a wire winding box 67 is arranged on the inner side of the wire winding box 66, and a wire connecting wheel 66 is connected to the upper side of the third mounting plate 63 through a rotating shaft 64 and a bearing 65.
In this embodiment, a winding mechanism 6 is disposed near one side of the tension compensation mechanism 8, winding is performed on a portion of the pull rope of which the length has been tested, interference is prevented from occurring in the testing process, a third clamp 62 is mounted on one side of the second support plate 61, the measured pull rope is clamped, a wire wheel 66 on the third mounting plate 63 is rotated through a rotating shaft 64 and a bearing 65, winding is performed on the measured pull rope, a winding box 67 is disposed on the inner side of the wire wheel 66, and the winding box 67 is connected with the pull rope through a winding joint on the winding box 67, so that one side of the pull rope is fixedly connected, and the horizontal state can be maintained for testing.
In this embodiment, the first clamp 52, the second clamp 82 and the third clamp 62 are controlled by pneumatic valves, pull ropes are pulled out of the wire collecting mechanism 6 from the wire collecting encoder 4 by the linear motor movement in cooperation with the operation of the clamping jaws of the first clamp 52 and the third clamp 62, and are retracted into the wire collecting encoder 4 from the wire collecting mechanism 6, so that the wire collecting encoder 4 with any length can be tested, and fatigue test is repeated, and the control is performed by the PLC controller.
The inner side end surface of the wire wheel 66 is provided with a stepped groove, the inner side of the wire wheel 66 is provided with a pressing plate 661, the pressing plate 661 is provided with a sliding groove for connecting the sliding block 662, the sliding block 662 is connected with the pressing plate 661 through a spring 663, and the wire rope penetrates through the sliding block 662 and is connected with the wire collecting box 67.
In this embodiment, a coil spring 68 and the bottom end of the wire wheel 66 are placed inside the stepped groove, and a slider 662 is mounted to the bottom of the wire wheel 66 by a pressing plate 661 and is positionally slid by a spring 663.
When the wire winding mechanism 6 winds, the wire winding box 67 starts winding under the action of the coil spring 68 due to the tensile force, the slider 662 is driven to move backwards after the pull head is received, the wire winding wheel 66 is triggered to wind, when the wire winding mechanism 6 winds, the wire winding wheel 66 starts to wind under the external tensile force and is placed at the pull head position, the slider 662 positions the wire winding wheel 66 under the action of the spring 663, and the wire winding box 67 winds again.
A coil spring 68 is also arranged between the third mounting plate 63 and the reel 66, and the rotating shaft 64 penetrates through the reel 66 and the third mounting plate 63 and is connected with a clamp spring 69 on the inner side of the third mounting plate 63.
In this embodiment, the inner side of the wire winding box 67 drives the wire winding rope and the wire winding head to pull out or wind up through the hub, the coil spring 68 below provides the power required for winding up, and the rotating shaft 64 penetrates through the wire winding wheel 66 and the third mounting plate 63 and is clamped with the clamp spring 69 on the inner side of the third mounting plate 63.
Referring to fig. 8, the present invention further provides an embodiment of a testing method of a pull-wire encoder, where the method is applicable to any one of the testing devices in the above technical solutions, and includes:
S1: resetting and calibrating, namely fixing a rope of a wire drawing encoder on a first clamp for clamping, controlling a first moving assembly to return to an original point, setting the wire drawing encoder to zero, setting the total length of the wire drawing encoder, loosening a third clamp, and connecting a wire collecting head of a wire collecting mechanism with the rope;
S2: the stay wire measurement, setting a positioning threshold value of a first moving assembly, driving the first moving assembly, calculating the residual length of a stay wire encoder according to the pulled length, updating the pulled length after the first moving assembly performs moving positioning, judging whether the pulled length is smaller than the total length, if so, enabling a first clamp and a third clamp to act, enabling the first moving assembly to return to the original point, returning to the step S1, if not, judging that all the ropes are pulled out or errors exist in precision, and entering the step S3;
S3: and (3) taking up the pulled-out wire rope, initializing the recovery length to enable the recovery length to be equal to the residual length, calculating the residual recovery length after the first moving assembly returns to the original point, judging whether the residual recovery length is larger than 0, if so, continuing to carry out recovery, clamping the third clamp, loosening the first clamp, moving the first moving assembly to the position of the positioning threshold value, clamping the first clamp, loosening the third clamp, returning the first moving assembly to the original point, if not, completing the taking-up, and returning to the step (S2) for repeated test or ending test.
The first moving assembly and the second moving assembly have the same positioning threshold value, when the first moving assembly moves and positions, the second moving assembly returns to the original point, the first clamp of the first moving assembly and the second clamp of the second moving assembly have the same action state, and the stress balance of the rope during pulling out or winding is ensured, so that sagging cannot occur.
In this embodiment, the test device is reset and calibrated, after the pull wire encoder 4 is fixed, the wire rope is clamped with the first clamp 52 on the measuring mechanism 5, the first moving component 73 is controlled to drive the measuring mechanism 5 to return to the original point for resetting, the detection value of the pull wire encoder 4 is set to zero, the third clamp 62 on the wire collecting mechanism 6 is loosened, the wire collecting head on the wire collecting box 67 is pulled to be connected with the pull rope, the pull-out length L Pulling device is set to be 0 on the PLC after the completion, and the total length L Total (S) is set according to the type of the pull wire encoder 4; then carrying out stay wire detection, the control system detects the residual length L The remainder is =L Total (S) -L Pulling device , and sets the positioning threshold value of the first moving assembly 73 and the second moving assembly 74, if the residual length is larger than the positioning threshold value, the moving distance of the first moving assembly 73 is the positioning threshold value, if the residual length is smaller than the positioning threshold value, the moving distance of the first moving assembly 73 is the residual length, the stay wire encoder 4 is prevented from being damaged due to overlarge stretching distance, after the first moving assembly 73 finishes moving, the PLC controller updates the pull-out length L Pulling device of the wire rope, and judges whether the pull-out length is smaller than the total length, if yes, the wire rope is not completely pulled out, the third clamp 62 clamps, the first clamp 52 is loosened, the first moving assembly returns to the original point, at this time, the second moving assembly 74 drives the tension compensation mechanism 8 to move towards the direction of the first moving assembly 73, and the moving distance is the positioning threshold value, after the measuring mechanism 5 returns to the original point, the second moving assembly 74 stops moving, then the first clamp 52 and the second clamp 82 simultaneously act to clamp 4, after that the third clamp 62 is loosened, and the first moving assembly 73 and the second moving assembly 74 simultaneously pull-out the new wire rope 6 is tested in the direction; if the pull length L Pulling device is equal to the total length L Total (S) or greater than the total length L Total (S) , it indicates that the error exists in the measurement of the whole pull or absorption of the wire rope, the wire rope encoder 4 can be calibrated and wound, the first moving component 73 returns to the origin, and the origin is the nearest position point where the first moving component 73 can move near the fixed tooling 3.
In the process of winding up, the retraction length is initialized to make the retraction length L Collecting and recovering equal to the remaining length L The remainder is , the control system monitors the remaining retraction length L The remainder is 2, L The remainder is 2=L Total (S) -L Collecting and recovering , when the remaining retraction length is greater than 0, the third clamp 62 is clamped, the first clamp 52 is released, the first moving assembly 73 moves to the positioning threshold distance, the first clamp 52 is clamped, the third clamp 62 is released, the first moving assembly 73 returns to the original point, the control system updates the retraction length L Collecting and recovering =positioning threshold, and the above steps are repeated, so that winding up is completed, at this time, the second moving assembly 74 is inactive, and the second clamp 82 remains in the released state.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A wire encoder testing method, comprising:
S1: resetting and calibrating, namely fixing a rope of a wire drawing encoder on a first clamp for clamping, controlling a first moving assembly to return to an original point, setting the wire drawing encoder to zero, setting the total length of the wire drawing encoder, loosening a third clamp, and connecting a wire collecting head of a wire collecting mechanism with the rope;
S2: the stay wire measurement, setting a positioning threshold value of a first moving assembly, driving the first moving assembly, calculating the residual length of a stay wire encoder according to the pulled length, updating the pulled length after the first moving assembly moves and positions, judging whether the pulled length is smaller than the total length, if so, the first clamp and the third clamp act, the third clamp are clamped, the first clamp is loosened, the first moving assembly returns to the original point, returning to the step S1, if not, judging that all the ropes are pulled out or errors exist in precision, and entering the step S3;
S3: and (3) taking up the pulled-out wire rope, initializing the recovery length to enable the recovery length to be equal to the residual length, calculating the residual recovery length after the first moving assembly returns to the original point, judging whether the residual recovery length is larger than 0, if so, continuing to carry out recovery, clamping the third clamp, loosening the first clamp, moving the first moving assembly to the position of the positioning threshold value, clamping the first clamp, loosening the third clamp, returning the first moving assembly to the original point, if not, completing the taking-up, and returning to the step (S2) for repeated test or ending test.
2. The method for testing a pull wire encoder according to claim 1, wherein: the first moving assembly and the second moving assembly have the same positioning threshold value, when the first moving assembly moves and positions, the second moving assembly returns to the original point, and the first clamp of the first moving assembly and the second clamp of the second moving assembly have the same action state, so that the stress balance of the rope during pulling out or winding up is ensured.
3. A wire encoder testing device, characterized in that the wire encoder testing device is adapted for use in a wire encoder testing method according to any of the preceding claims 1-2, comprising:
A test rack (1);
An objective table (2) is arranged on the test frame (1), a fixed tool (3) is arranged on the objective table (2), a stay wire encoder (4) is arranged on the fixed tool (3), a measuring mechanism (5) is arranged on one side of the fixed tool (3) to clamp a rope of the stay wire encoder (4),
One side of the rope pulling encoder (4) is connected with a rope receiving mechanism (6) to take up the measured rope;
The measuring mechanism (5) is arranged on the moving mechanism (7), moves along the arrangement direction of the moving mechanism (7) and drives the rope of the stay wire encoder (4) to extend outwards for measurement, and meanwhile the wire collecting mechanism (6) collects wires;
And a tension compensation mechanism (8) is arranged at one end of the moving mechanism (7) close to the wire collecting mechanism (6) to carry out tension compensation on the tension of the wire pulling encoder (4) in the detection process, so that the tension in the wire pulling process is balanced.
4. A pull-wire encoder testing device according to claim 3, wherein: the fixed frock (3) includes: the base (31), first backup pad (32) are vertically connected to one side of base (31), locating plate (33) are installed to one side of first backup pad (32) one side terminal surface of locating plate (33) is installed act as go-between encoder (4), through adjusting the mounted position of locating plate (33), adjust the height of acting as go-between encoder (4).
5. A pull-wire encoder testing device according to claim 3, wherein: the moving mechanism (7) comprises a sliding rail (71), limiting blocks (72) are arranged on two sides of the sliding rail (71), a first moving assembly (73) is arranged on the sliding rail (71), and the first moving assembly (73) reciprocates in the setting range of the limiting blocks (72).
6. A pull-wire encoder testing apparatus as claimed in claim 5, wherein: the measuring mechanism (5) is arranged on the first moving assembly (73), the measuring mechanism (5) comprises a first mounting plate (51), a first clamp (52) is arranged on one side of the first mounting plate (51), a positioning protection film (53) is arranged at the output end of the first clamp (52), and the positioning protection film (53) is arranged on the inner side end face of the first clamp (52) and is in contact with the cotton rope.
7. A pull-wire encoder testing apparatus as claimed in claim 5, wherein: still be provided with second remove subassembly (74) on slide rail (71), set up on second remove subassembly (74) pulling force compensation mechanism (8), pulling force compensation mechanism (8) are including second mounting panel (81), second anchor clamps (82) are installed to one side of second mounting panel (81), the output of second anchor clamps (82) sets up to carry out the centre gripping to the cotton rope.
8. A pull-wire encoder testing device according to claim 3, wherein: the wire winding mechanism (6) comprises a second supporting plate (61), a third clamp (62) is arranged on one side, close to the tension compensation mechanism (8), of the second supporting plate (61), a third mounting plate (63) is connected to the other side through bolts, a wire winding box (67) is arranged on the inner side of the wire winding box (66) above the third mounting plate (63) through a rotating shaft (64) and a bearing (65) to connect a wire winding wheel (66).
9. A pull-wire encoder testing apparatus as claimed in claim 8, wherein: the wire wheel (66) is provided with a stepped groove on the inner side end surface, a pressing plate (661) is placed on the inner side of the wire wheel (66), a sliding groove is formed in the pressing plate (661) and used for being connected with a sliding block (662), the sliding block (662) is connected with the pressing plate (661) through a spring (663), and the wire rope penetrates through the sliding block (662) and is connected with the wire collecting box (67).
10. A pull-wire encoder testing apparatus as claimed in claim 8, wherein: coil springs (68) are further arranged between the third mounting plate (63) and the wire wheel (66), and the rotating shaft (64) penetrates through the wire wheel (66) and the third mounting plate (63) and is connected with the clamp springs (69) on the inner side of the third mounting plate (63).
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| US4843314A (en) * | 1988-04-25 | 1989-06-27 | Craig Barnaby | Testing unit for rotary shaft encoders |
| CN207881664U (en) * | 2018-02-12 | 2018-09-18 | 长春莫尔电子有限公司 | A kind of intelligent calibrating device of draw-wire displacement sensor |
| CN211528031U (en) * | 2019-12-20 | 2020-09-18 | 托菲传感技术(上海)股份有限公司 | Stay wire encoder detection device |
| CN113465643A (en) * | 2021-07-02 | 2021-10-01 | 济南轲盛自动化科技有限公司 | Error analysis method and system of stay wire displacement encoder |
| CN113465642A (en) * | 2021-07-02 | 2021-10-01 | 济南轲盛自动化科技有限公司 | Data correction method and system of stay wire displacement encoder based on attitude simulation |
| CN217930360U (en) * | 2022-06-09 | 2022-11-29 | 劢微机器人科技(深圳)有限公司 | Test fixture and test system |
| CN117405163A (en) * | 2023-12-07 | 2024-01-16 | 科瑞工业自动化系统（苏州）有限公司 | Active error compensation method and system for stay cord encoder |
-
2024
- 2024-02-22 CN CN202410195868.5A patent/CN117760479B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4843314A (en) * | 1988-04-25 | 1989-06-27 | Craig Barnaby | Testing unit for rotary shaft encoders |
| CN207881664U (en) * | 2018-02-12 | 2018-09-18 | 长春莫尔电子有限公司 | A kind of intelligent calibrating device of draw-wire displacement sensor |
| CN211528031U (en) * | 2019-12-20 | 2020-09-18 | 托菲传感技术(上海)股份有限公司 | Stay wire encoder detection device |
| CN113465643A (en) * | 2021-07-02 | 2021-10-01 | 济南轲盛自动化科技有限公司 | Error analysis method and system of stay wire displacement encoder |
| CN113465642A (en) * | 2021-07-02 | 2021-10-01 | 济南轲盛自动化科技有限公司 | Data correction method and system of stay wire displacement encoder based on attitude simulation |
| CN217930360U (en) * | 2022-06-09 | 2022-11-29 | 劢微机器人科技(深圳)有限公司 | Test fixture and test system |
| CN117405163A (en) * | 2023-12-07 | 2024-01-16 | 科瑞工业自动化系统（苏州）有限公司 | Active error compensation method and system for stay cord encoder |
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