CN110918490B - Device and method for detecting shaft length of small direct current motor - Google Patents
Device and method for detecting shaft length of small direct current motor Download PDFInfo
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- CN110918490B CN110918490B CN201911182758.0A CN201911182758A CN110918490B CN 110918490 B CN110918490 B CN 110918490B CN 201911182758 A CN201911182758 A CN 201911182758A CN 110918490 B CN110918490 B CN 110918490B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 230000004323 axial length Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 49
- 238000007599 discharging Methods 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 5
- 238000011895 specific detection Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
- B07C5/10—Sorting according to size measured by light-responsive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
- B07C5/08—Sorting according to size measured electrically or electronically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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Abstract
The invention provides a device and a method for detecting the axial length of a small direct current motor, which comprises a workbench, wherein a feeding mechanism for conveying the small direct current motor to be detected is fixedly arranged at the top of the workbench, a detection mechanism for detecting the small direct current motor to be detected is arranged at the tail end of the feeding mechanism, and a classification mechanism for sorting products is arranged on the side edge of the detection mechanism. The device can replace manual detection, reduces the labor intensity of workers to a great extent, improves the production efficiency and has a certain promotion effect on industrial production.
Description
Technical Field
The invention relates to the technical field of automatic mechanical equipment, in particular to a device and a method for detecting the axial length of a small direct current motor.
Background
In many industrial sectors, for example, large steel rolling equipment, large precision machine tools, mine winches, electric trains in cities, cable equipment and other places where the linear velocity is strictly required to be consistent, a direct current motor is generally used as a prime mover to drag a working machine. The internal mechanism of the motor converts input electric energy into mechanical energy under the action of a magnetic field, and then drives and transmits the mechanical energy to other mechanisms through the shaft, so that the structure and the performance of the motor shaft are strictly regulated. Many current motor devices are not precisely controlled by shaft length, may suffer from excessive radial force due to too long shaft, thereby causing motor shaft breakage, and may be too short to drive other mechanisms connected thereto. The invention can complete the detection of the shaft length of the small direct current motor, and can classify qualified motor products and unqualified motor products to be conveyed to a qualified area and an unqualified area to wait for the requirements of the next process.
Disclosure of Invention
The invention mainly aims to solve the defects in the prior art, and designs a device and a method for detecting the axial length of a small direct current motor.
In order to achieve the technical features, the invention is realized as follows: the utility model provides a small-size direct current motor shaft length detection device, it includes the workstation, the top fixed mounting of workstation has the feeding mechanism who is used for carrying to wait to detect small-size direct current motor, feeding mechanism's end is installed and is used for treating to detect small-size direct current motor and carry out the detection mechanism who detects, installs the sorting mechanism who is used for sorting the product at detection mechanism's side.
The feeding mechanism comprises a feeding inclined table fixed on the workbench, the tail end of the bottom of the feeding inclined table is butted with a U-shaped groove, and the end position of the U-shaped groove is butted with a material pushing cylinder; and the feeding mechanism is provided with a one-way material returning device for discharging materials in a matching way.
The unidirectional material returning device comprises a magnet fixed at the tail end of a piston rod of the material pushing cylinder, and the magnet is matched with the small direct current motor to be detected and adsorbs the small direct current motor to be detected; a door-shaped frame is fixed at the top end of the U-shaped groove, which is in butt joint with the material pushing cylinder, and a small baffle plate which moves in one direction is hinged on the door-shaped frame.
The arc structure in U type groove cooperatees with small-size DC motor's shell body circular arc, is provided with the baffle that is used for fixing a position small-size DC motor in the end position in U type groove.
The feeding inclined table comprises two inclined planes with different heights, wherein one inclined plane is matched with the outer shell of the small direct current motor, and the motor shaft of the small direct current motor is matched with the other inclined plane.
The detection mechanism comprises a pressure sensor, the pressure sensor is fixed on the workbench and positioned at the tail end of a U-shaped groove of the feeding mechanism, and opposite type photoelectric sensors are symmetrically arranged on two sides of the pressure sensor.
The classifying mechanism comprises a rotary cylinder fixed on a workbench, a lifting cylinder is mounted on a main shaft of the rotary cylinder through a support, a connecting rod is mounted at the top end of a piston rod of the lifting cylinder, a mechanical gripper used for gripping a small direct current motor to be detected is mounted at the tail end of the bottom of the connecting rod, and an unqualified product placing area used for placing unqualified products is arranged on the side edge of the mechanical gripper.
The sorting mechanism further comprises a conveyor belt arranged at the bottom of the workbench, a blanking channel is arranged on the workbench and over the blanking end of the conveyor belt, the blanking channel is butted with the end of a U-shaped groove of the workbench, and the blanking channel is matched with a one-way material returning device of the feeding mechanism.
The method for detecting the shaft length of the small direct current motor by the device comprises the following steps:
step 1: rolling a small direct current motor to be detected onto the U-shaped groove from a feeding inclined table of the feeding mechanism along an inclined plane, and maintaining an initial posture;
step 2: starting a material pushing cylinder, enabling a piston rod of the material pushing cylinder to extend out, adsorbing a small direct current motor through a magnet at the end of the piston rod, pushing the small direct current motor to the left end along a U-shaped groove, wherein a baffle is arranged at the leftmost end of the U-shaped groove, and the small direct current motor is pushed to the position where the small direct current motor stops;
step 3: the length of a main shaft of the small direct current motor is detected through a pressure sensor and a correlation photoelectric sensor of a detection mechanism;
step 4: when the small direct current motor is detected to be unqualified, the magnet at the tail end of the piston rod of the material pushing cylinder loosens the adsorption and contracts to the initial position, and the small direct current motor stays in the detection area; descending a mechanical gripper of the sorting mechanism, gripping the small direct current motor, ascending to a proper height, rotating by 90 degrees at the right side, loosening the mechanical gripper, allowing the small direct current motor to fall to an unqualified product placement area, and after a short delay, rotating by 90 degrees at the left side of the small manipulator to return to an initial state;
step 5: when the small-sized direct current motor is qualified, the magnet at the tail end of the material pushing cylinder adsorbs the motor and starts to shrink to the rightmost end of the U-shaped groove to recover the initial state, the right end of the U-shaped groove is provided with the small-sized baffle, the small-sized direct current motor is blocked by the small-sized baffle of the one-way material returning device when the material pushing cylinder recovers the initial state, the small-sized direct current motor falls to the conveying belt on the discharging channel of the U-shaped groove and then is conveyed to the conveying belt of the discharging station, and all processes are completed.
The method for detecting the shaft length of the small direct current motor by the shaft length detection device in Step3 comprises the following specific steps:
judging whether the shaft length of the small direct current motor is too long or not by judging whether the pressure sensor receives a signal or not, and indicating that the shaft length of the motor is too long and the motor is not qualified if the pressure sensor receives an electric signal;
the correlation type photoelectric sensor is used for detecting whether the length of the shaft of the small direct current motor meets the requirement or not, and if the correlation type photoelectric sensor does not receive an electric signal, the small direct current motor is over short and unqualified;
only when the pressure sensor does not receive the electric signal and the correlation type photoelectric sensor receives the electric signal, the detected small-sized direct current motor can be judged to be qualified.
The invention has the following beneficial effects:
1. the detection device with the structure can be used for detecting the shaft length of the small direct current motor, and an automatic detection mode is adopted, so that the detection efficiency and quality are greatly improved; in the specific detection process, after the small direct current motor is conveyed to the detection area through the feeding mechanism, the shaft length of the motor is detected through the detection sensor, whether the small direct current motor is qualified or not is judged according to the shaft length, and qualified products and unqualified products are distinguished through the classifying mechanism, so that the full-automatic process from feeding to product classification of the small direct current motor is realized.
2. Can be used for small-size DC motor's material loading through feeding mechanism, the material loading in-process promotes small-size DC motor through pushing away the material cylinder and slides along U type groove, and then carries it and treats the detection zone.
3. The one-way material returning device is used for pulling back the small direct current motor, plays a role in discharging, and is matched with discharging of qualified products.
4. The inclination angle of the inclined plane of the feeding inclined table is proper, so that the small direct current motor can smoothly slide off and cannot slide off too fast to generate too large impact on the U-shaped groove.
5. The length of the piston rod of the pushing cylinder is proper, so that the small-sized direct current motor can be pushed to the left end of the U-shaped groove when the piston rod extends out, and the small-sized direct current motor is pulled to a notch at the right end of the U-shaped groove when the piston rod retracts.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a first perspective three-dimensional view of the present invention.
FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention.
FIG. 3 is a second perspective three-dimensional view of the present invention.
FIG. 4 is a third perspective three-dimensional view of the present invention.
FIG. 5 is a fourth perspective three-dimensional view of the present invention.
In the figure: 1-a feeding mechanism, 2-a detection mechanism, 3-a classification mechanism and 4-a workbench;
101-material pushing cylinder, 102-material feeding inclined table, 103-small direct current motor, 104-U-shaped groove and 105-magnet;
201-pressure sensor, 202-correlation type photoelectric sensor;
301-rotating cylinder, 302-bracket, 303-lifting cylinder, 304-connecting rod, 305-mechanical gripper, 306-unqualified product placement area, 307-small baffle, 308-conveyor belt.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, a small-size direct current motor axial length detection device, it includes workstation 4, the top fixed mounting of workstation 4 is used for carrying the feeding mechanism 1 that waits to detect small-size direct current motor, the end of feeding mechanism 1 is installed and is used for waiting to detect small-size direct current motor and detect detection mechanism 2, installs the sorting mechanism 3 that is used for sorting the product at the side of detection mechanism 2. The detection device with the structure can be used for detecting the shaft length of the small direct current motor 103, and an automatic detection mode is adopted, so that the detection efficiency and quality are greatly improved; in the specific detection process, after the small direct current motor is conveyed to the detection area through the feeding mechanism, the shaft length of the motor is detected through the detection sensor, whether the small direct current motor is qualified or not is judged according to the shaft length, and qualified products and unqualified products are distinguished through the classifying mechanism, so that the full-automatic process from feeding to product classification of the small direct current motor is realized.
Further, the feeding mechanism 1 comprises a feeding inclined table 102 fixed on the workbench 4, the tail end of the bottom of the feeding inclined table 102 is butted with a U-shaped groove 104, and the end position of the U-shaped groove 104 is butted with a material pushing cylinder 101; and a unidirectional material returning device for discharging is arranged on the feeding mechanism 1 in a matching manner. The feeding mechanism 1 can be used for feeding the small direct current motor 103, and in the feeding process, the small direct current motor 103 is pushed by the material pushing cylinder 101 to slide along the U-shaped groove 104 so as to be conveyed to a detection area to be detected.
Further, the unidirectional material returning device comprises a magnet 105 fixed at the tail end of a piston rod of the material pushing cylinder 101, and the magnet 105 is matched with the small direct current motor to be detected and adsorbs the small direct current motor to be detected; a door-shaped frame is fixed at the top end of the U-shaped groove 104, which is butted with the material pushing cylinder 101, and a small baffle 307 which can move in one direction is hinged on the door-shaped frame. The one-way material returning device is used for pulling back the small direct current motor 103 to achieve the unloading effect, and then the qualified products are unloaded in a matching mode.
Further, the arc structure of the U-shaped groove 104 is matched with the arc of the outer shell of the small-sized dc motor, and a baffle for positioning the small-sized dc motor is arranged at the end of the U-shaped groove 104.
Further, the feeding ramp 102 includes two inclined planes with different heights, one of the inclined planes is matched with the outer shell of the small-sized dc motor 103, and the motor shaft of the small-sized dc motor 103 is matched with the other inclined plane. The design can well limit the posture of the small direct current motor 103 when rolling down, and ensure that the small direct current motor 103 is still in the initial posture when rolling down to the U-shaped groove 104.
Further, the detection mechanism 2 comprises a pressure sensor 201, the pressure sensor 201 is fixed on the workbench 4 and is located at the tail end of the U-shaped groove 104 of the feeding mechanism 1, and opposite photoelectric sensors 202 are symmetrically arranged on two sides of the pressure sensor 201. When the small-sized direct current motor 103 is pushed to the left end of the U-shaped groove 104 by the pushing cylinder 101, the two sensors start to detect the axial length of the motor 103. Judging whether the shaft length of the small direct current motor 103 is too long or not by judging whether the pressure sensor 201 receives a signal or not, and indicating that the shaft length of the motor is too long and the motor is unqualified if the pressure sensor 201 receives the electric signal; the correlation type photoelectric sensor 202 is used for detecting whether the axial length of the motor 103 meets the requirement or not, and if the sensor does not receive an electric signal, the axial length of the motor 103 is too short and is not qualified; therefore, only when the pressure sensor 201 does not receive an electric signal and the correlation type photoelectric sensor 202 receives an electric signal, it is possible to determine that the detected small dc motor 103 is qualified.
Further, the classification mechanism 3 comprises a rotary cylinder 301 fixed on the workbench 4, a lifting cylinder 303 is installed on a main shaft of the rotary cylinder 301 through a support 302, a connecting rod 304 is installed at the top end of a piston rod of the lifting cylinder 303, a mechanical gripper 305 used for gripping a small direct current motor to be detected is installed at the bottom end of the connecting rod 304, and an unqualified product placing area 306 used for placing unqualified products is arranged on the side edge of the mechanical gripper 305. When the detection mechanism detects that the small direct current motor 103 is unqualified, the piston rod of the material pushing cylinder 101 loosens adsorption and contracts to the initial position, the motor 103 stays in the detection area, the small mechanical hand descends, grabs the small direct current motor 103, ascends to a proper height and rotates 90 degrees to the right, the mechanical hand is loosened, the small direct current motor 103 falls to the unqualified product placement area 306, and after a short delay, the small mechanical hand rotates 90 degrees to the left and returns to the initial state. When the small-sized direct current motor 103 is qualified, the magnet 105 on the piston rod of the material pushing cylinder 101 adsorbs the small-sized direct current motor 103 and starts to shrink to the rightmost end of the U-shaped groove 104 to recover the initial state, the right end of the U-shaped groove 104 is provided with the small-sized baffle 307, when the material pushing cylinder 101 recovers the original state, the small-sized direct current motor 103 is stopped, and the motor falls to the conveyor belt 308 in the gap area of the U-shaped groove 104 and is then conveyed to the next station.
Further, the sorting mechanism 3 further comprises a conveyor belt 308 arranged at the bottom of the workbench 4, a blanking channel is arranged on the workbench 4 and right above a blanking end of the conveyor belt 308, the blanking channel is butted with the end of the U-shaped groove 104 of the workbench 4, and the blanking channel is matched with the one-way material returning device of the feeding mechanism 1.
Example 2:
the method for detecting the shaft length detection device of the small direct current motor is characterized by comprising the following steps:
step 1: rolling a small direct current motor 103 to be detected onto a U-shaped groove 104 from a feeding inclined table 102 of the feeding mechanism 1 along an inclined plane, and maintaining an initial posture;
step 2: starting the material pushing cylinder 102, enabling a piston rod of the material pushing cylinder to extend out, adsorbing the small direct current motor through a magnet 105 at the end of the piston rod, pushing the small direct current motor to the left end along the U-shaped groove 104, arranging a baffle at the leftmost end of the U-shaped groove 104, and pushing the small direct current motor 103 to the position where the small direct current motor stops;
step 3: the length of the main shaft of the small-sized DC motor 103 is detected by a pressure sensor 201 and an opposite type photoelectric sensor 202 of a detection mechanism 2;
step 4: when the small direct current motor 103 is detected to be unqualified, the magnet 105 at the tail end of the piston rod of the material pushing cylinder 101 loosens the adsorption and contracts to the initial position, and the small direct current motor 103 stays in the detection area; the mechanical gripper 305 of the sorting mechanism 3 descends, grips the small direct current motor 103, ascends to a proper height, rotates 90 degrees to the right, releases the mechanical gripper 305, falls to the unqualified product placement area 306, and returns to the initial state after short delay after the small direct current motor rotates 90 degrees to the left;
step 5: when the small-sized direct current motor 103 is qualified, the magnet 105 at the tail end of the material pushing cylinder 101 adsorbs the motor and starts to shrink to the rightmost end of the U-shaped groove 104 to recover the initial state, the right end of the U-shaped groove 104 is provided with the small-sized baffle 307, the small-sized direct current motor 103 is stopped by the small-sized baffle 307 of the one-way material returning device when the material pushing cylinder recovers the original state, the small-sized direct current motor 103 falls to the conveyor belt 308 in the blanking channel of the U-shaped groove 104 and then is conveyed to the conveyor belt 308 of the blanking station, and all the processes are completed.
The method for detecting the shaft length of the small direct current motor by the shaft length detection device in Step3 comprises the following specific steps:
judging whether the shaft length of the small direct current motor 103 is too long or not by judging whether the pressure sensor 201 receives a signal or not, and indicating that the shaft length of the motor is too long and the motor is unqualified if the pressure sensor 201 receives the electric signal;
the correlation type photoelectric sensor 202 is used for detecting whether the axial length of the small direct current motor 103 meets the requirement or not, and if the correlation type photoelectric sensor 202 does not receive an electric signal, the axial length of the small direct current motor 103 is too short and is unqualified;
only when the pressure sensor 201 does not receive the electric signal and the correlation type photoelectric sensor 202 receives the electric signal, the small dc motor 103 detected at this time can be judged to be qualified.
Claims (7)
1. The utility model provides a small-size direct current motor shaft length detection device which characterized in that: the automatic sorting machine comprises a workbench (4), wherein a feeding mechanism (1) for conveying a small direct current motor to be detected is fixedly mounted at the top of the workbench (4), a detection mechanism (2) for detecting the small direct current motor to be detected is mounted at the tail end of the feeding mechanism (1), and a sorting mechanism (3) for sorting products is mounted on the side edge of the detection mechanism (2);
the feeding mechanism (1) comprises a feeding inclined table (102) fixed on the workbench (4), the tail end of the bottom of the feeding inclined table (102) is butted with a U-shaped groove (104), and the end position of the U-shaped groove (104) is butted with a material pushing cylinder (101); the feeding mechanism (1) is provided with a one-way material returning device for discharging materials in a matching way;
the unidirectional material returning device comprises a magnet (105) fixed at the tail end of a piston rod of the material pushing cylinder (101), and the magnet (105) is matched with the small direct current motor to be detected and adsorbs the small direct current motor to be detected; a door-shaped frame is fixed at the top end of the U-shaped groove (104) which is butted with the material pushing cylinder (101), and a small baffle (307) which moves in one direction is hinged on the door-shaped frame;
the arc structure of U type groove (104) cooperatees with small-size DC motor's shell body circular arc, is provided with the baffle that is used for fixing a position small-size DC motor in the end position in U type groove (104).
2. The device for detecting the axial length of the small direct current motor according to claim 1, wherein: the feeding inclined table (102) comprises two inclined planes with different heights, one inclined plane is matched with the outer shell of the small direct current motor (103), and the motor shaft of the small direct current motor (103) is matched with the other inclined plane.
3. The device for detecting the axial length of the small direct current motor according to claim 1, wherein: the detection mechanism (2) comprises a pressure sensor (201), the pressure sensor (201) is fixed on the workbench (4) and located at the tail end of a U-shaped groove (104) of the feeding mechanism (1), and opposite type photoelectric sensors (202) are symmetrically arranged on two sides of the pressure sensor (201).
4. The device for detecting the axial length of the small direct current motor according to claim 1, wherein: the sorting mechanism (3) comprises a rotary cylinder (301) fixed on a workbench (4), a lifting cylinder (303) is installed on a main shaft of the rotary cylinder (301) through a support (302), a connecting rod (304) is installed on the top end of a piston rod of the lifting cylinder (303), a mechanical gripper (305) used for grabbing a small direct current motor to be detected is installed at the tail end of the bottom of the connecting rod (304), and an unqualified product placing area (306) used for placing unqualified products is arranged on the side edge of the mechanical gripper (305).
5. The device for detecting the axial length of the small direct current motor according to claim 1, wherein: the sorting mechanism (3) further comprises a conveying belt (308) arranged at the bottom of the workbench (4), a blanking channel is arranged on the workbench (4) and right above a blanking end of the conveying belt (308), the blanking channel is butted with the end of a U-shaped groove (104) of the workbench (4), and the blanking channel is matched with a one-way material returning device of the feeding mechanism (1).
6. The method for detecting the axial length of the small direct current motor by using the device for detecting the axial length of the small direct current motor as claimed in any one of claims 1 to 5 is characterized in that:
step 1: a small direct current motor (103) to be detected rolls down to a U-shaped groove (104) from a feeding inclined table (102) of a feeding mechanism (1) along an inclined plane, and maintains an initial posture;
step 2: starting a material pushing cylinder (102), wherein a piston rod of the material pushing cylinder extends out, a magnet (105) at the end of the piston rod adsorbs a small direct current motor and pushes the small direct current motor to the left end along a U-shaped groove (104), a baffle is arranged at the leftmost end of the U-shaped groove (104), and the small direct current motor (103) is pushed to the position where the small direct current motor stops;
step 3: the length of a main shaft of the small direct current motor (103) is detected through a pressure sensor (201) and a correlation type photoelectric sensor (202) of a detection mechanism (2);
step 4: when the small direct current motor (103) is detected to be unqualified, the magnet (105) at the tail end of the piston rod of the material pushing cylinder (101) looses the adsorption and contracts to the initial position, and the small direct current motor (103) stays in the detection area; a mechanical gripper (305) of the sorting mechanism (3) descends, grabs the small direct current motor (103), ascends to a proper height, rotates 90 degrees to the right, loosens the mechanical gripper (305), falls to an unqualified product placement area (306), and returns to an initial state after short delay after rotating 90 degrees to the left;
step 5: when the small-sized direct current motor (103) is qualified, the magnet (105) at the tail end of the material pushing cylinder (101) adsorbs the motor and starts to shrink to the rightmost end of the U-shaped groove (104) to recover the initial state, the right end of the U-shaped groove (104) is provided with the small-sized baffle (307), the small-sized direct current motor (103) is stopped by the small-sized baffle (307) of the one-way material returning device when the material pushing cylinder recovers the initial state, the small-sized direct current motor (103) falls to the conveyor belt (308) in the blanking channel of the U-shaped groove (104) and is then conveyed to the conveyor belt (308) of the blanking station, and all processes are.
7. The method for detecting the axial length of the small DC motor according to claim 6, wherein the specific method for detecting the main shaft length in Step3 is as follows:
whether the shaft length of the small direct current motor (103) is too long or not is judged through whether the pressure sensor (201) receives a signal, and if the pressure sensor (201) receives an electric signal, the condition that the shaft length of the motor is too long and unqualified is indicated;
the correlation type photoelectric sensor (202) is used for detecting whether the length of the shaft of the small direct current motor (103) meets the requirement or not, and if the correlation type photoelectric sensor (202) does not receive an electric signal, the fact that the shaft of the small direct current motor (103) is too short and unqualified is indicated;
only when the pressure sensor (201) does not receive the electric signal and the correlation type photoelectric sensor (202) receives the electric signal, the detected small direct current motor (103) can be judged to be qualified.
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| JPH0771921A (en) * | 1993-09-01 | 1995-03-17 | Daido Steel Co Ltd | Length measuring device for steel |
| CN206794162U (en) * | 2017-05-31 | 2017-12-26 | 宁波考比锐特汽车科技有限公司 | Charge bar length detection equipment |
| CN208653432U (en) * | 2018-08-27 | 2019-03-26 | 河北华能耐火保温材料股份有限公司 | A kind of alumina silicate needle punched blanket length-measuring appliance |
| CN208825036U (en) * | 2018-09-07 | 2019-05-07 | 武汉锂鑫自动化科技有限公司 | A kind of square electric cell sorting machine |
| CN110355106B (en) * | 2019-07-12 | 2022-05-13 | 海盐晟煜五金有限公司 | Bolt and screw rod length screening device |
| CN110340179B (en) * | 2019-08-07 | 2024-06-25 | 电子科技大学中山学院 | Automatic all-in-one of pivot length detection screening and burring that flattens |
| CN110449374A (en) * | 2019-09-17 | 2019-11-15 | 苏州工业职业技术学院 | A kind of core length automatic test machine |
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| CN110918490A (en) | 2020-03-27 |
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