CN109406020B - Automatic testing equipment for torque of micro motor - Google Patents
Automatic testing equipment for torque of micro motor Download PDFInfo
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- CN109406020B CN109406020B CN201811324654.4A CN201811324654A CN109406020B CN 109406020 B CN109406020 B CN 109406020B CN 201811324654 A CN201811324654 A CN 201811324654A CN 109406020 B CN109406020 B CN 109406020B
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- 238000012360 testing method Methods 0.000 title claims abstract description 160
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 56
- 238000003825 pressing Methods 0.000 claims description 28
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- 230000002950 deficient Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
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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
- G01L5/0061—Force sensors associated with industrial machines or actuators
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of motor testing, in particular to micro-motor torque automatic testing equipment, which comprises a frame, wherein a testing unit and a control unit for controlling a testing process are arranged on the frame, the testing unit comprises an upright post fixedly connected to the frame, a rotary worktable is rotatably connected to the upright post, a plurality of groups of testing tools which are further developed and improved and used for clamping a tested motor and executing testing actions are arranged on the rotary worktable, the frame is also provided with a driving device for driving the rotary worktable to rotate, the testing tools can rotate along with the rotary worktable so as to sequentially enter a loading station, a testing station and a discharging station, and the discharging device for discharging the tested motor at the discharging station is arranged on the frame.
Description
[ field of technology ]
The invention relates to the technical field of motor testing, in particular to automatic torque testing equipment for a micro motor.
[ background Art ]
In order to ensure the product quality of the motor, the output torque of the motor is generally required to be tested before leaving the factory to check whether the motor is qualified or not, and the method for measuring the torque of the micro motor by using a rope pulley method is a current general method, and most of the multiple procedures in the process of testing the torque of the micro motor by using the method in the prior art are still manually completed by adopting manpower, so that the labor intensity of workers is increased, and the testing efficiency is low. In addition, weights used in the prior art are usually rigid integral, and after an output shaft of a tested motor is decoupled from an input shaft of a pulley, inertial impact generated when a motion state changes in the free falling process of the weights is relatively large, and generated shaking is also large, so that ropes are easy to break, and the testing efficiency is influenced.
[ invention ]
The technical problem to be solved by the invention is to provide the automatic testing equipment for the torque of the micro motor, which can improve the problems existing in the prior art, and has the advantages of compact structure, high degree of automation, labor cost saving and high testing efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: the automatic test equipment for the torque of the micro motor comprises a frame, wherein a test unit and a control unit for controlling a test flow are arranged on the frame, the test unit comprises an upright post fixedly connected to the frame, a rotary workbench is rotatably connected to the upright post, a plurality of groups of test tools for clamping a tested motor and executing a test action are arranged on the rotary workbench, the frame is further provided with a driving device for driving the rotary workbench to rotate, the test tools can rotate along with the rotary workbench so as to sequentially enter a loading station, a test station and a discharging station, and a discharging device for discharging the tested motor at the discharging station is arranged on the frame and beside the rotary workbench; each group of test tools comprises a fixed connecting seat, a hollow weight shaft tube is rotationally connected to the fixed connecting seat, a flat structure for transmitting torque is arranged on the motor output shaft, the flat structure transmits the torque when the motor output shaft stretches into the weight shaft tube so that the weight shaft tube rotates along with the rotation of the output shaft of the motor, a torque test assembly for testing the output torque of the motor is arranged at one end of the weight shaft tube, a test positioning auxiliary mechanism for positioning and fixing the motor body when the motor output shaft stretches into the weight shaft tube is arranged at the other end of the weight shaft tube on the fixed connecting seat, a supporting plate is movably connected to the fixed connecting seat, and can slide along the direction parallel to the axis of the weight shaft tube, and the supporting plate drives the motor to slide together through the test positioning auxiliary mechanism so as to realize that the motor output shaft stretches into or stretches out of the weight shaft tube; the motor to be tested is placed on the test tool at the loading station, the test tool can automatically complete clamping of the motor, then the motor rotates along with the rotary workbench on the test tool, the motor passes through the test station to complete testing, then enters the unloading station to be unloaded by the unloading device, and the whole process is automatically controlled by the control unit.
The automatic testing equipment for the torque of the micro motor is characterized in that the fixed connecting seat is provided with the guide hole, the axis of the guide hole is parallel to the axis of the weight shaft tube, the guide hole is internally and slidably connected with the guide post, the support plate is fixedly connected with the guide post, the guide post is provided with the spring which is used for enabling the support plate to keep pressing on the fixed connecting seat, and the motor is always kept in a positioned and fixed state in the testing process.
According to the automatic testing equipment for the torque of the micro motor, the testing positioning auxiliary mechanism is arranged on the supporting plate, when the motor output shaft stretches into the weight shaft tube, the testing positioning auxiliary mechanism is used for positioning and pressing the motor body, the fixed connecting seat is further provided with the buckling and pulling piece, when the testing positioning auxiliary mechanism is far away from the fixed connecting seat along the direction parallel to the axis of the weight shaft tube along with the supporting plate, the motor output shaft can be pulled out from the weight shaft tube, and the motor is disconnected with the torque testing component; meanwhile, the buckling piece is linked with the test positioning auxiliary mechanism, so that the test positioning auxiliary mechanism can be released from pressing and fixing the motor.
The automatic testing equipment for the torque of the micro motor comprises the motor supporting block fixedly connected with the supporting plate and used for supporting the motor, a positioning column used for limiting the motor body to move up and down and left and right is arranged on the supporting plate and above the motor supporting block, the automatic testing equipment for the torque of the micro motor further comprises a buckling component used for jacking the rear end of the motor to prevent the motor from moving back and forth, and the buckling component can be linked to the buckling component so that the buckling component and the rear end of the motor are mutually separated, and the pressing fixation of the testing positioning auxiliary mechanism to the motor is relieved; the buckling assembly comprises a groove arranged on a motor supporting block, a pressing rod is hinged in the groove, the pressing rod extends outwards and is provided with a bulge used for clamping the rear end of the motor, the motor supporting block is also provided with a pressing rod elastic piece which enables the bulge to keep propping against the rear end of the motor, the pressing rod elastic piece is a spring, the front end of the pressing rod elastic piece is propped against the bottom of the pressing rod, and the pressing rod can turn around a hinging point by means of the restoring force of the spring, so that the bulge can keep propping against the rear end of the motor; one end of the buckling and pulling piece is connected with the fixed connecting seat, the other end of the buckling and pulling piece is close to the compression bar or is abutted to the bottom of the compression bar, and the position relationship between the buckling and pulling piece and the compression bar is configured as follows: when the backup pad is to keeping away from the direction slip of fixed connection seat, detain and draw the piece and can drive the depression bar and overturn around the pin joint, detain and draw the piece to the direction of depression bar power with the direction of depression bar elastic component to the depression bar power is opposite to make protruding and the rear end separation of motor, release test location auxiliary mechanism to the fixed of pressing of motor.
The automatic testing equipment for the torque of the micro motor comprises the testing and positioning auxiliary mechanism, wherein the testing and positioning auxiliary mechanism comprises a positioning assembly and a fixing assembly, and the testing and positioning auxiliary mechanism is used for positioning and attracting and fixing the motor body when the motor output shaft stretches into the weight shaft tube; the positioning assembly comprises a motor supporting block fixedly connected with the supporting plate and used for supporting the motor and a positioning column which is arranged on the supporting plate and is positioned above the motor supporting block and used for limiting the motor body to move up and down and left and right; the fixing assembly is arranged on the fixing connecting seat, the fixing assembly is a magnet capable of attracting and restraining the motor body to be fixed, when the test positioning auxiliary mechanism slides along the direction parallel to the axis of the weight shaft tube along the supporting plate and is far away from the fixing connecting seat, the motor output shaft can be pulled out from the weight shaft tube, the motor is uncoupled from the torque test assembly, after the supporting plate reaches the maximum sliding stroke, the magnetic attraction of the fixing assembly to the motor weakens or disappears due to the fact that the motor is far away from the fixing assembly, and the fixing function of the test positioning auxiliary mechanism to the motor is relieved.
The automatic torque testing equipment for the micro motor comprises the weight turntable, wherein the weight turntable is arranged at the end part of the weight shaft tube, a hanging rope is arranged on the weight turntable, a weight is hung at the lower end of the hanging rope, the weight comprises a weight wharf and a weight body, the lower end of the hanging rope is directly or indirectly connected with the weight head, an elastic element is arranged between the weight wharf and the weight body, and the weight head is movably connected with the weight body, so that the weight body can compress the elastic element in the falling process of the weight wharf and the weight body together; the weight body is provided with a hollow cavity, the weight wharf is slidably arranged in the hollow cavity, the upper end of the elastic element is abutted to the top surface of the hollow cavity, the lower end of the elastic element is abutted to the upper portion of the weight head, the weight body is supported on the weight head by the elastic element, and a clearance fit is formed between the side surface of the weight wharf and the side surface of the weight body. The weight is split into a weight head and a weight body which can move relatively, then the weight head and the weight body are connected and combined by adopting an elastic element, when a tested motor is decoupled from a weight shaft tube, the weight head and the weight body are changed in the movement state in the process of freely falling together, the weight head and the weight body generate relative movement to compress the elastic element, and the deformation energy storage characteristic of the elastic element and the air in the hollow cavity play a certain buffering role when compressed; meanwhile, the weight stack and the weight body are in clearance fit, and the damping effect of a narrow clearance on air flow is utilized to further improve the buffering effect; the elastic element can change the movement direction of the weight body after energy storage to change the volume of the space in the hollow cavity, so that the air flows through the gap between the wharf and the weight body, energy is consumed by utilizing the damping action of the narrow gap on the air flow, and finally the weight is converted due to the kinetic energy consumption generated by free falling so as to stop moving, thereby effectively reducing the inertial impact and shaking of the weight in the falling process, avoiding the hanging rope from being broken, being beneficial to improving the testing efficiency of the torque of the micro motor and having simple structure.
The automatic test equipment for the torque of the micro motor, as described above, the test unit further comprises a pushing mechanism, the pushing mechanism comprises a cam block and a pushing roller arranged on the supporting plate, and the position relationship between the cam block and the pushing roller is configured as follows: when the test tool rotates along with the rotary workbench to enter the loading station and the unloading station, the cam block can be in contact with the pushing roller and push the pushing roller so that the supporting plate slides in a direction away from the fixed connecting seat.
The automatic test equipment for the torque of the micro motor comprises the bracket fixedly connected to the rack, wherein the bracket is provided with the dismounting mechanism for taking the motor off from the test positioning auxiliary mechanism, the dismounting mechanism comprises the picking component for grabbing the motor and the release component for separating the motor from the picking component, and the lower part of the dismounting mechanism is also provided with the receiving tray; the picking assembly comprises a first telescopic device arranged on the support, a magnetic adsorption piece is connected to the movable end of the first telescopic device, and the first telescopic device drives the adsorption piece to move so as to be close to the release assembly or close to a motor on a test tool located at the unloading station.
The automatic test equipment of micromotor moment of torsion as described above, discharge apparatus still includes wire pulling mechanism, wire pulling mechanism is including being used for providing the joint of power and the through-hole that the position that corresponds to the joint in the backup pad set up, the joint is installed on fixed connection seat, the size of through-hole is less than the size of the plug that matches with the joint on the motor, sets up like this and is in by the card when making the plug on the motor be connected with the joint of power the through-hole department, when the backup pad slides to the direction of keeping away from fixed connection seat, the plug on the motor is driven by the backup pad to make the plug on the motor and the joint disconnection of power.
Compared with the prior art, the invention has the following advantages: according to the invention, the testing tool which is further developed and improved is adopted to replace the traditional manual operation, so that automatic operation of clamping, testing and disassembling in the torque testing process of the micro motor is realized, a plurality of groups of testing tools are arranged on a rotary workbench, switching among a plurality of stations is realized by means of rotation, and meanwhile, the plurality of motors are automatically tested, so that the efficiency is improved and the structure is compact.
[ description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a perspective view of a first embodiment of a micro-motor torque automatic test equipment of the present invention.
Fig. 2 is a perspective view of the test unit of fig. 1.
Fig. 3 is an exploded view of the test unit of fig. 1.
Fig. 4 is a perspective view of the discharge apparatus of fig. 1.
Fig. 5 is a perspective view of a test fixture according to a first embodiment of the present invention.
Fig. 6 is an exploded view i of a test fixture according to a first embodiment of the present invention.
Fig. 7 is an exploded view ii of a test fixture according to a first embodiment of the present invention.
Fig. 8 is a cross-sectional view of the motor support block, the pressing lever and the pressing lever elastic member of fig. 7.
Fig. 9 is a cross-sectional view of the weight and lanyard of fig. 7 directly connected.
Fig. 10 is a cross-sectional view of the weight and lanyard indirect connection of fig. 7.
Fig. 11 is a perspective view of a test fixture according to a second embodiment of the present invention.
Fig. 12 is an exploded view i of a test fixture according to a second embodiment of the present invention.
Fig. 13 is an exploded view ii of a test fixture according to a second embodiment of the present invention.
Fig. 14 is a perspective view of the cam block of fig. 4 shown in a movable mounting position.
[ detailed description ] of the invention
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
Embodiment one:
as shown in fig. 1 to 3, a micro-motor torque automatic test device comprises a frame 1, wherein a test unit 2 and a control unit 3 are arranged on the frame 1, the test unit 2 and the control unit 3 are connected through a signal line, the control unit 3 is used for sending out instructions and controlling a test flow, the test unit 2 comprises a stand column 21 fixedly connected to the frame 1, a rotary workbench 22 is rotatably connected to the stand column 21, a plurality of groups of test tools 4 for clamping a tested motor 100 and executing a test action are arranged on the rotary workbench 22, the rotary workbench 22 is generally circular, the test tools 4 are uniformly distributed along the periphery of the rotary workbench 22, and the number of the test tools 4 is determined according to the diameter size of the rotary workbench 22; the machine frame 1 is also provided with a driving device 23, the driving device 23 drives the rotary table 22 to rotate clockwise, the test tool 4 can rotate along with the rotary table 22 so as to sequentially enter a loading station, a test station and a discharging station, and the machine frame 1 is also provided with a discharging device 5 which is positioned beside the rotary table 22 and used for discharging the tested motor 100 at the discharging station.
As shown in fig. 5 to 8, each set of test tools 4 includes a fixed connection seat 41, a hollow weight shaft tube 42 is rotatably connected to the fixed connection seat 41, a flat structure for transmitting torque is provided on an output shaft of the motor 100, the flat structure transmits torque to enable the weight shaft tube 42 to rotate along with rotation of the output shaft of the motor 100 when the output shaft of the motor 100 extends into the weight shaft tube 42, a torque test component 43 for testing the output torque of the motor 100 is provided at one end of the weight shaft tube 42, a test positioning auxiliary mechanism 44 is provided on the fixed connection seat 41 and at the other end of the weight shaft tube 42, a support plate 45 is movably connected to the fixed connection seat 41, the support plate 45 can slide along a direction parallel to the axis of the weight shaft tube 42, the test positioning auxiliary mechanism 44 is mounted on the support plate 45, and the test positioning auxiliary mechanism 44 positions and presses the motor 100 body when the output shaft of the motor 100 extends into the weight shaft tube 42; the fixed connection seat 41 is further provided with a buckling and pulling piece 46, and when the supporting plate 45 slides in a direction away from the fixed connection seat 41, the buckling and pulling piece 46 can be linked with the test positioning auxiliary mechanism 44 so as to release the pressing and fixing of the test positioning auxiliary mechanism 44 to the motor 100.
Preferably, the fixed connection seat 41 is provided with a guide hole 411, the axis of the guide hole 411 is parallel to the axis of the weight shaft tube 42, a guide post 412 is slidably connected in the guide hole 411, the support plate 45 is fixedly connected with the guide post 412, a spring 47 is sleeved on the guide post 412, one end of the spring 47 is abutted to a boss on the guide post 412, and the other end of the spring 47 is abutted to the fixed connection seat 41, so that the support plate 45 can keep being pressed on the fixed connection seat 41.
The test positioning assist mechanism 44 includes a motor support block 441, a positioning post 442, and a crimping assembly 443. The motor supporting block 441 is fixedly connected with the supporting plate 45, and is used for supporting the motor 100; the positioning column 442 is disposed on the supporting plate 45 and above the motor supporting block 441, and is used for limiting the up-down and left-right movement of the motor 100 body; the buckling component 443 is used for pushing the rear end of the motor 100 to prevent the motor 100 from moving back and forth; preferably, the buckling component 443 includes a groove 444 provided on the motor supporting block 441, a compression bar 445 is hinged in the groove 444, the compression bar 445 extends outwards and is provided with a protrusion 446 for clamping the rear end of the motor 100, the motor supporting block 441 is further provided with a compression bar elastic member 447 for keeping the protrusion 446 pressed against the rear end of the motor 100, the compression bar elastic member 447 is typically a spring, and the front end of the compression bar elastic member 447 is pressed against the bottom of the compression bar 445; one end of the pull-buckle member 46 is connected with the fixed connection seat 41, the other end is close to the compression bar 445 or abuts against the bottom of the compression bar 445, when the support plate 45 slides in a direction away from the fixed connection seat 41, the pull-buckle member 46 can drive the compression bar 445 to turn around the hinge point, and as the direction of the force of the pull-buckle member 46 on the compression bar 445 is opposite to the direction of the force of the compression bar elastic member 447 on the compression bar 445, the protrusion 446 is separated from the rear end of the motor 100, and the locking state of the motor 100 is released.
As shown in fig. 7 and 9, the torque testing assembly 43 includes a weight turntable 31, the weight turntable 31 is mounted at the end of a weight shaft tube 42, a hanging rope 32 is provided on the weight turntable 31, and a weight 33 is suspended at the lower end of the hanging rope 32; preferably, the weight 33 includes a weight head 331 and a weight body 332, and the lower end of the hanging rope 32 penetrates through the weight body 332 and is connected with the weight head 331; or as shown in fig. 10, a connecting rod is arranged on the weight head 331, penetrates out of the top of the weight body 332 and then is connected with the lower end of the hanging rope 32; an elastic element 333 is arranged between the weight head 331 and the weight body 332, so that the weight body 332 can compress the elastic element 333 during the falling process of the weight head 331 and the weight body 332 together; the weight body 332 is provided with a hollow chamber, the weight head 331 is slidably disposed in the hollow chamber, the upper end of the elastic element 333 abuts against the top surface of the hollow chamber, the lower end of the elastic element 333 abuts against the upper portion of the weight head 331, the weight body 332 is supported on the weight head 331 by the elastic element 333, and a clearance fit is formed between the side surface of the weight head 331 and the side surface of the weight body 332, and the clearance value is usually selected to be 0.01-0.05 mm.
The test unit 2 further comprises a pushing mechanism 6, the pushing mechanism 6 comprises a cam block 61 and a pushing roller 62 arranged on the supporting plate 45, the cam block 61 is fixedly arranged on the bracket 51, and when the test tool 4 rotates along with the rotary workbench 22 to enter the loading station and the unloading station, the cam block 61 contacts with the pushing roller 62 and pushes the pushing roller 62 so as to enable the supporting plate 45 to slide in a direction away from the fixed connecting seat 41; when the test fixture 4 rotates together with the rotary table 22 to leave the loading station and the unloading station, the cam block 61 is separated from contact with the pushing roller 62, and the supporting plate 45 is pushed against the fixed connecting seat 41 again by the acting force of the spring 47.
Preferably, as shown in fig. 4, the unloading device 5 includes a bracket 51 fixedly connected to the frame 1, a detaching mechanism 52 for detaching the motor 100 from the test positioning auxiliary mechanism 44 is provided on the bracket 51, the detaching mechanism 52 includes a pick-up component 521 for grabbing the motor 100 and a release component 522 for separating the motor 100 from the pick-up component 521, and a receiving tray 53 is further provided below the detaching mechanism 52. The picking assembly 521 includes a first telescopic device 5211 installed on the support 51, a magnetic adsorbing member 5212 is connected to a movable end of the first telescopic device 5211, the adsorbing member 5212 is in a ring shape, the releasing assembly 522 is a bump fixed on the support 51, the first telescopic device 5211 can drive the adsorbing member 5212 to move to be close to the releasing member 522 or to be close to the motor 100 on the testing fixture 4 located at the unloading station, when the adsorbing member 5212 picks up the motor 100 and is close to the releasing member 522, the releasing member 522 can pass through a through hole in the middle of the adsorbing member 5212 and touch the motor 100, so that the motor 100 is separated from the adsorbing member 5212.
Preferably, the discharging device 5 further comprises a wire pulling mechanism 54, the wire pulling mechanism 54 comprises a connector 541 for providing power to the motor 100 and a through hole 542 arranged on the support plate 45 at a position corresponding to the connector 541, the connector 541 is mounted on the fixed connection seat 41, the size of the through hole 542 is smaller than that of a plug on the motor 100, which is matched with the connector 541, when the support plate 45 slides in a direction away from the fixed connection seat 41, the plug on the motor is driven by the support plate 45, so that the connector 541 is disconnected with the plug on the motor.
When the testing device of the invention is operated, the driving device 23 drives the rotary table 22 to continuously rotate, when the rotary table 22 conveys the testing tool 4 to the loading station, the cam block 61 pushes the pushing roller 62 to enable the supporting plate 45 to slide away from the fixed connecting seat 41, the buckling and pulling piece 46 drives the pressing rod 445 to overturn around the hinging point and make room, at the moment, the motor 100 to be tested can be placed on the motor supporting block 441 and connected with the connector 541 of the power supply, the cam block 61 is separated from contact with the pushing roller 62 at the last section of the loading station, the supporting plate 45 is pushed against the fixed connecting seat 41 again by the spring 47, the pressing rod elastic piece 447 enables the buckling and pressing component 443 to push the rear end of the motor 100 to be pressed and fixed, the output shaft of the motor 100 is pushed into the weight shaft tube 42, and the motor 100 is connected with the torque testing component 43; then the rotary workbench 22 conveys the motor 100 which is positioned and pressed to be fixed to a testing station, and relevant tests are carried out under the control of the control unit 3; the motor 100 after the test is conveyed to a discharging station, the cam block 61 contacts with the pushing roller 62 and pushes the pushing roller 62 at the discharging station so as to enable the supporting plate 45 to slide away from the fixed connecting seat 41, an output shaft of the motor 100 is pulled out of the weight shaft tube 42, the motor 100 is uncoupled from the torque testing assembly 43, meanwhile, the buckling and pulling piece 46 and the test positioning auxiliary mechanism 44 are linked to release the pressing and fixing of the motor 100, a plug on the motor 100 is driven by the supporting plate 45 to be disconnected with the connector 541, the motor 100 can be picked up by the adsorbing piece 5212 when approaching to the pickup device 521, then the movable end of the first telescopic device 5211 is retracted and brings the motor 100 to approach the releasing assembly 522, the motor 100 touches the releasing assembly 522 to be separated from and fall into the receiving disc 53 below, and a seal or a similar marking device is further arranged on the releasing assembly 522, and the motor 100 can be covered with a seal mark when touching the motor 100; the movable end of the first telescopic device 5211 carries the adsorbing member 5212 to extend towards the direction approaching the testing tool 4 again, the next motor 100 which has completed the test is waited for being picked up, and the testing tool 4 which has completed the unloading is transferred to the loading station.
Further, as shown in fig. 14, the bracket 51 is provided with a second telescopic device 63, and the cam block 61 is mounted on the movable end of the second telescopic device 63, and normally the movable end of the second telescopic device 63 is in a retracted state, so that the cam block 61 can contact with the pushing roller 62 on the test fixture 4 at the unloading station and push the pushing roller 62, thereby sliding the support plate 45 in a direction away from the fixed connection seat 41; the unloading station is further provided with a sensor for detecting the position of the weight 33, when the sensor detects that the position of the weight 33 of the testing tool 4 at the unloading station is abnormal (i.e. the weight 33 is not lifted, indicating that the corresponding tested motor 100 is a defective product), the movable end of the second telescopic device 63 stretches out, so that the cam block 61 and the pushing roller 62 cannot be contacted with each other, the defective motor 100 is still positioned and fixed on the testing tool 4, the pick-up device 521 cannot take off the defective motor 100, and the defective motor 100 enters the testing station again along with the rotation of the rotary table 22 to be detected again or manually taken off.
Embodiment two:
the present embodiment is similar to the first embodiment in that it is different from the first embodiment in that: the test positioning aid 44 is secured to the motor 100 in a different manner. As shown in fig. 11, 12 and 13, the test positioning auxiliary mechanism 44 in this embodiment includes a positioning assembly 441 'and a fixing assembly 442', wherein the positioning assembly 441 'includes a motor supporting block 4411' fixedly connected with the supporting plate 45 for supporting the motor 100 and a positioning column 4412 'disposed on the supporting plate 45 and above the motor supporting block 4411' for limiting the up-down and left-right movement of the motor 100 body; the fixing component 442 'is installed on the fixing connection seat 41, the fixing component 442' is a magnet capable of attracting and restraining the motor 100 body, and the test positioning auxiliary mechanism 44 positions and attracts and fixes the motor 100 body when the output shaft of the motor 100 stretches into the weight shaft tube 42; the fixing function of the fixing assembly 442' to the motor 100 is released when the support plate 45 slides away from the fixed connection seat 41 and reaches the maximum sliding stroke.
Claims (9)
1. The utility model provides a micromotor moment of torsion automatic test equipment, includes frame (1), be equipped with test unit (2) and be used for controlling test flow's control unit (3) on frame (1), its characterized in that: the testing unit (2) comprises an upright post (21) fixedly connected to the frame (1), a rotary workbench (22) is rotatably connected to the upright post (21), a plurality of groups of testing tools (4) for clamping a tested motor (100) and executing testing actions are mounted on the rotary workbench (22), the frame (1) is further provided with a driving device (23) for driving the rotary workbench (22) to rotate, the testing tools (4) can rotate along with the rotary workbench (22) so as to sequentially enter a loading station, a testing station and a discharging station, and a discharging device (5) for discharging the tested motor (100) at the discharging station is further arranged on the frame (1) and beside the rotary workbench (22); placing a motor to be tested on a test tool at a loading station, automatically completing clamping of the motor by the test tool, rotating the motor along with a rotary workbench on the test tool, completing testing by the test station, entering a discharging station, and discharging by a discharging device;
every group test fixture (4) is including fixed connection seat (41), rotate on fixed connection seat (41) and be connected with hollow weight central siphon (42), be equipped with the flat structure that is used for transmitting the moment of torsion on motor (100) output shaft, this flat structure transmission moment of torsion makes weight central siphon (42) rotate along with the output shaft rotation of motor (100) when motor (100) output shaft stretches into in weight central siphon (42), weight central siphon (42) one end is equipped with torque test subassembly (43) that are used for testing motor (100) output moment of torsion, just be located on fixed connection seat (41) and be equipped with test location auxiliary mechanism (44) that fix a position and fix a position motor (100) body when motor (100) output shaft stretches into in weight central siphon (42), swing joint has backup pad (45) on fixed connection seat (41), backup pad (45) can slide along the direction that is parallel to weight central siphon (42) axis, backup pad (45) drive motor (100) and slide together through test location auxiliary mechanism (44) and realize that motor (100) output shaft stretches into or stretches into central siphon (42).
2. The automatic test equipment for torque of a micro motor according to claim 1, wherein: be equipped with guiding hole (411) on fixed connection seat (41), the axis of guiding hole (411) is parallel to the axis of weight central siphon (42), but sliding connection has guide post (412) in guiding hole (411), backup pad (45) and guide post (412) fixed connection, be equipped with on guide post (412) and be used for making backup pad (45) keep pushing spring (47) on fixed connection seat (41).
3. The automatic test equipment for torque of a micro motor according to claim 1, wherein: the test positioning auxiliary mechanism (44) is arranged on the supporting plate (45), when an output shaft of the motor (100) stretches into the weight shaft tube (42), the test positioning auxiliary mechanism (44) positions and presses the motor (100) body to be fixed, and the fixed connecting seat (41) is further provided with a buckle pull piece (46) which can be linked with the test positioning auxiliary mechanism (44) to release the pressing fixed state of the motor (100) when the supporting plate (45) slides in the direction away from the fixed connecting seat (41).
4. A micro-machine torque automatic test equipment according to claim 3, characterized in that: the test positioning auxiliary mechanism (44) comprises a motor supporting block (441) fixedly connected with a supporting plate (45) and used for supporting the motor (100), a positioning column (442) used for limiting the up-down and left-right movement of the motor (100) body is arranged on the supporting plate (45) and above the motor supporting block (441), and the test positioning auxiliary mechanism (44) further comprises a buckling component (443) used for pushing the rear end of the motor (100) to prevent the motor (100) from moving back and forth; the buckling component (443) comprises a groove (444) arranged on a motor supporting block (441), a pressing rod (445) is hinged in the groove (444), the pressing rod (445) extends outwards and is provided with a protrusion (446) used for clamping the rear end of the motor (100), the motor supporting block (441) is also provided with a pressing rod elastic piece (447) which enables the protrusion (446) to keep pressing on the rear end of the motor (100), one end of the buckling piece (46) is connected with the fixed connecting seat (41), the other end of the buckling piece is close to the pressing rod (445) or is abutted to the bottom of the pressing rod (445), and the position relation between the buckling piece (46) and the pressing rod (445) is configured as follows: when the supporting plate (45) slides in a direction away from the fixed connecting seat (41), the buckling and pulling piece (46) can drive the pressing rod (445) to turn around the hinge point, so that the bulge (446) is separated from the rear end of the motor (100).
5. The automatic test equipment for torque of a micro motor according to claim 1, wherein: the test positioning auxiliary mechanism (44) comprises a positioning assembly (441 ') and a fixing assembly (442'), and the test positioning auxiliary mechanism (44) positions and attracts and fixes the motor (100) body when the output shaft of the motor (100) stretches into the weight shaft tube (42); the positioning assembly (441 ') comprises a motor supporting block (4411') fixedly connected with the supporting plate (45) and used for supporting the motor (100), and a positioning column (4412 ') which is arranged on the supporting plate (45) and is positioned above the motor supporting block (4411') and used for limiting the up-down and left-right movement of the motor (100); the fixing assembly (442 ') is arranged on the fixing connecting seat (41), the fixing assembly (442 ') is a magnet which can attract and restrict the motor (100) body to be fixed, and the fixing function of the fixing assembly (442 ') on the motor (100) is released after the supporting plate (45) slides in the direction away from the fixing connecting seat (41) and reaches the maximum sliding stroke.
6. The automatic test equipment for torque of a micro motor according to claim 1, wherein: the torque testing assembly (43) comprises a weight rotary table (31), the weight rotary table (31) is arranged at the end part of a weight shaft tube (42), a hanging rope (32) is arranged on the weight rotary table (31), a weight (33) is hung at the lower end of the hanging rope (32), the weight (33) comprises a weight wharf (331) and a weight body (332), the lower end of the hanging rope (32) is directly or indirectly connected with the weight wharf (331), an elastic element (333) is arranged between the weight wharf (331) and the weight body (332), and the weight body (332) can compress the elastic element (333) in the falling process of the weight wharf (331) and the weight body (332); the weight body (332) is provided with a hollow cavity, the weight head (331) is slidably arranged in the hollow cavity, the upper end of the elastic element (333) is abutted to the top surface of the hollow cavity, the lower end of the elastic element (333) is abutted to the upper portion of the weight head (331), the weight body (332) is supported on the weight head (331) by the elastic element (333), and a clearance fit is formed between the side surface of the weight head (331) and the side surface of the weight body (332).
7. The automatic test equipment for torque of a micro motor according to any one of claims 1 to 6, wherein: the test unit (2) further comprises a pushing mechanism (6), the pushing mechanism (6) comprises a cam block (61) and a pushing roller (62) arranged on the supporting plate (45), and the position relationship between the cam block (61) and the pushing roller (62) is configured as follows: when the test tool (4) rotates along with the rotary workbench (22) to enter the loading station and the unloading station, the cam block (61) can be in contact with the pushing roller (62) and push the pushing roller (62) so as to enable the supporting plate (45) to slide in a direction away from the fixed connecting seat (41).
8. The automatic test equipment for torque of a micro motor according to any one of claims 1 to 6, wherein: the unloading device (5) comprises a bracket (51) fixedly connected to the frame (1), a disassembly mechanism (52) for taking the motor (100) off the test positioning auxiliary mechanism (44) is arranged on the bracket (51), the disassembly mechanism (52) comprises a picking component (521) for grabbing the motor (100) and a release component (522) for separating the motor (100) from the picking component (521), and a receiving tray (53) is arranged below the disassembly mechanism (52); the picking assembly (521) comprises a first telescopic device (5211) arranged on the support (51), a magnetic adsorption piece (5212) is connected to the movable end of the first telescopic device (5211), and the first telescopic device (5211) drives the adsorption piece (5212) to move so as to be close to the release assembly (522) or close to a motor (100) on a test fixture (4) located at the unloading station.
9. The automatic test equipment for torque of a micro motor according to any one of claims 1 to 6, wherein: the discharging device (5) further comprises a wire pulling mechanism (54), the wire pulling mechanism (54) comprises a connector (541) for providing power for the motor (100) and a through hole (542) arranged on the supporting plate (45) at a position corresponding to the connector (541), the connector (541) is mounted on the fixed connecting seat (41), and the size of the through hole (542) is smaller than that of a plug matched with the connector (541) on the motor (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324654.4A CN109406020B (en) | 2018-11-08 | 2018-11-08 | Automatic testing equipment for torque of micro motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324654.4A CN109406020B (en) | 2018-11-08 | 2018-11-08 | Automatic testing equipment for torque of micro motor |
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| CN109406020A CN109406020A (en) | 2019-03-01 |
| CN109406020B true CN109406020B (en) | 2023-11-10 |
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Families Citing this family (4)
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| CN110261775A (en) * | 2019-07-29 | 2019-09-20 | 厦门达真电机有限公司 | A kind of motor performance detection device |
| CN111780903B (en) * | 2020-06-30 | 2022-03-15 | 东风商用车有限公司 | Butterfly type EGR valve motor torque characteristic measuring device and measuring method |
| CN113686472A (en) * | 2021-10-25 | 2021-11-23 | 江苏亚联机电制造有限公司 | Torque measuring device for motor manufacturing |
| CN115307797B (en) * | 2022-08-05 | 2023-09-22 | 佛山科学技术学院 | Full-automatic output torque detection equipment of miniature synchronous motor and test method thereof |
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