阅读说明：本技术 一种步进电机力矩自动测量装置 (Automatic torque measuring device for stepping motor ) 是由 许东想 曹俊雄 杨建刚 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种步进电机力矩自动测量装置,其解决了生产效率低、产品质量不可靠的技术问题,其设有测量机构和控制机构,测量机构设有主支架板,主支架板上设有四个测量工位,每个测试工位均设有长形凹槽,位于主支架板上,长形凹槽设有夹头机构,夹头机构设有夹头、活动压轴、感应测试板和力矩盘,活动压轴前端连接夹头,夹头内设有夹头压片,夹头与活动压轴连接处设有感应测试板,感应测试板上端固定设有光电感应器支架,光电感应器支架上设有光电感应器,力矩盘设于感应测试板的后方,力矩盘上缠绕砝码线,砝码线连接砝码,感应测试板与力矩盘之间设有单向轴承。本发明可广泛应用于步进电机生产自动化机械技术领域。(The invention relates to an automatic torque measuring device of a stepping motor, which solves the technical problems of low production efficiency and unreliable product quality, the measuring mechanism is provided with a measuring mechanism and a control mechanism, the measuring mechanism is provided with a main support plate, four measuring stations are arranged on the main support plate, each measuring station is provided with a long groove and is located on the main support plate, each long groove is provided with a chuck mechanism, each chuck mechanism is provided with a chuck, a movable pressing shaft, an induction measuring plate and a torque disc, the front end of each movable pressing shaft is connected with the chuck, a chuck pressing sheet is arranged in each chuck, the joint of each chuck and the corresponding movable pressing shaft is provided with the induction measuring plate, a photoelectric inductor support is fixedly arranged at the upper end of the induction measuring plate, a photoelectric inductor is arranged on each photoelectric inductor support, the torque disc is arranged behind the induction measuring plate, weight lines are wound on the torque disc, weights are connected with the weight. The invention can be widely applied to the technical field of automatic machinery for producing the stepping motor.)

1. An automatic torque measuring device of a stepping motor is provided with a measuring mechanism and a control mechanism, wherein the control mechanism is provided with a case, the upper end surface of the case is provided with a bottom plate, the measuring mechanism is fixed on the bottom plate, the measuring mechanism is provided with a main support plate, the main support plate is provided with five support columns, every two adjacent support columns form a measuring station, the measuring station is totally provided with four measuring stations, the upper part of the main support plate is provided with a long groove, the long groove is provided with a chuck mechanism, the chuck mechanism is provided with a chuck, a movable pressing shaft, an induction testing plate and a torque disc, the front end of the movable pressing shaft is connected with the chuck, a chuck pressing sheet is arranged in the chuck, the joint of the chuck and the movable pressing shaft is provided with the induction testing plate, the induction testing plate is circular and is clamped at the, the fixed photoelectric sensor support that is equipped with in response test panel upper end, be equipped with the photoelectric sensor on the photoelectric sensor support, the moment dish is located the rear of response test panel, overlap in the end of activity last item, the winding weight line on the moment dish, the weight is connected to the weight line, the weight is in between two adjacent pillars of main mounting panel, the response test panel with be equipped with one-way bearing between the moment dish.

2. The automatic moment measuring device of a stepping motor according to claim 1, wherein a motor fixing plate is arranged in front of the main supporting plate and fixed on the main supporting plate, a clamping groove is formed in the motor fixing plate, a discharging push plate is fixedly connected to the upper end of the motor fixing plate and divided into a transverse component and a vertical component, the vertical component is fixed on the motor fixing plate and provided with a groove which can be overlapped with the clamping groove in the motor fixing plate, a testing terminal circuit board is fixed at the groove of the vertical component, a plurality of testing terminals are arranged on the testing terminal circuit board, the transverse component of the discharging push plate is connected with a discharging cylinder, and the discharging cylinder is fixed on the upper end face of the main supporting plate.

3. The automatic moment measuring device of a stepping motor as claimed in claim 2, wherein the right side of each discharging cylinder is vertically connected with an ejection connecting rod, and the lower end of the ejection connecting rod is vertically connected with a discharging pressure plate.

4. The automatic moment measuring device of a stepping motor according to claim 1, wherein a lower pressing connecting block is arranged above the tail end of the movable pressing shaft, the upper end of the lower pressing connecting block is connected with a lower pressing cylinder, the lower pressing connecting block and the lower pressing cylinder are both fixed on a rear pushing lower pressing plate, the upper end of the rear pushing lower pressing plate is vertically connected with a chuck tensioning cylinder, a rear support plate is connected below the chuck tensioning cylinder, and the rear support plate is fixed on the main support plate.

5. The automatic moment measuring device of a stepping motor as claimed in claim 2, wherein the lower end of the motor fixing plate is connected with a baffle plate, and the baffle plate is fixed on the main support plate.

6. The automatic moment measuring device for the stepping motor according to claim 4, wherein a protective cover is arranged between the main support plate and the rear support plate, and the lower end of the rear support plate is connected with a support frame.

7. The automatic measuring device of the moment of a stepping motor as claimed in claim 1, wherein the bottom plate is provided with a discharge chute which is obliquely arranged.

8. The automatic moment measuring device of the stepping motor as claimed in claim 1, wherein a touch screen, a power switch, a control switch and an alarm buzzer are sequentially arranged at the front end of the case, and the number of the control switches is four.

9. The automatic moment measuring device of a stepping motor as claimed in claim 8, wherein a trough is arranged on the front side of the bottom of the case, and an electromagnetic valve seat is arranged at the rear end of the case.

Technical Field

The invention relates to the technical field of motor production automation machinery, in particular to an automatic torque measuring device for a stepping motor.

Background

Along with the continuous development and the perfection of scientific technology, the automatic production equipment cannot be separated in the production process of the stepping motor, the production efficiency is improved, the product quality is improved, the manpower is saved, and the automatic lifting force detection of the stepping motor is necessary automatic test equipment. The lifting force of the stepping motor is a method for detecting the output torque of the stepping motor, but the lifting force of the stepping motor is extremely high, so that the lifting force is accurate and reliable, and the production efficiency can keep up with other stations. However, the existing lifting force method is manually operated, the output torque of the stepping motor is visually checked, the production rate is low, the quality is not reliable, and the product quality is not controlled.

Disclosure of Invention

The invention aims to solve the defects in the background technology and provides the automatic stepping motor torque measuring device which has high production efficiency, high-quality product output, high safety coefficient and labor saving.

The invention provides an automatic torque measuring device of a stepping motor, which is provided with a measuring mechanism and a control mechanism, wherein the control mechanism is provided with a case, the upper end surface of the case is provided with a bottom plate, the measuring mechanism is fixed on the bottom plate, the measuring mechanism is provided with a main support plate, the main support plate is provided with five support columns, every two adjacent support columns form a measuring station, the total number of the measuring stations is four, the upper part of the main support plate is provided with a long groove, the long groove is provided with a chuck mechanism, the chuck mechanism is provided with a chuck, a movable pressing shaft, an induction test plate and a torque disc, the front end of the movable pressing shaft is connected with the chuck, a chuck pressing sheet is arranged in the chuck, the joint of the chuck and the movable pressing shaft is provided with the induction test plate, the induction test plate is circular, the induction test plate is just, the moment plate is arranged at the rear of the induction test plate and sleeved at the tail end of the movable pressing shaft, the weight string is wound on the moment plate and connected with the weight, the weight is positioned between two adjacent pillars of the main support plate, and a one-way bearing is arranged between the induction test plate and the moment plate.

Preferably, the place ahead of main mounting plate is equipped with the motor fixed plate, the motor fixed plate is fixed in on the main mounting plate, the motor fixed plate is equipped with the draw-in groove, the upper end fixed connection ejection of compact push pedal of motor fixed plate, ejection of compact push pedal divide into transverse component and vertical part, vertical part is fixed in on the motor fixed plate, vertical part is equipped with the recess, can with the draw-in groove coincidence on the motor fixed plate, the fixed test terminal circuit board of groove department of vertical part, be equipped with a plurality of test terminal on the test terminal circuit board, ejection of compact cylinder is connected to the transverse component of ejection of compact push pedal, ejection of compact.

Preferably, the right side of each discharging cylinder is vertically connected with an ejection connecting rod, and the lower end of the ejection connecting rod is vertically connected with a discharging pressure plate.

Preferably, the upper part of the tail end of the movable pressing shaft is provided with a downward pressing connecting block, the upper end of the downward pressing connecting block is connected with a downward pressing cylinder, the downward pressing connecting block and the downward pressing cylinder are fixed on a rear pushing downward pressing plate, the upper end of the rear pushing downward pressing plate is vertically connected with a chuck elastic cylinder, a rear support plate is connected below the chuck elastic cylinder, and the rear support plate is fixed on the main support plate.

Preferably, the lower end of the motor fixing plate is connected with a baffle plate, and the baffle plate is fixed on the main bracket plate.

Preferably, a protective cover is arranged between the main support plate and the rear support plate, and the lower end of the rear support plate is connected with the support frame.

Preferably, the bottom plate is provided with a discharge chute which is obliquely arranged.

Preferably, the front end of the case is sequentially provided with a touch screen, a power switch, a control switch and an alarm buzzer, and the number of the control switches is four.

Preferably, a trough is arranged on the front side of the bottom of the case, and an electromagnetic valve seat is arranged at the rear end of the case.

The invention has the beneficial effects that:

(1) the measuring mechanism is provided with four independent measuring stations, the four measuring stations can work simultaneously or independently, each measuring station is provided with a chuck mechanism, each chuck mechanism is provided with a chuck, a movable pressing shaft, an induction testing plate and a torque disc, the chuck mechanism is used for pressing a stepping motor, the torque disc winds a weight line, the weight line is connected with weights, the weights drive the torque disc to rotate to detect the torque of the stepping motor, and the induction testing plate is provided with a photoelectric sensor. The invention judges whether the moment of the stepping motor is qualified or not by detecting the number of high and low levels by the photoelectric sensor and tests the moment of the stepping motor by specific data, so that the defective stepping motor is detected in hundred percent, the product quality is controlled and the labor force is saved.

(2) The measuring mechanism is also provided with a discharging cylinder, an ejection connecting rod and a discharging pressing plate, after the stepping motor is tested, the discharging cylinder drives the ejection connecting rod to push forwards, the ejection connecting rod drives the discharging pressing plate to push forwards, so that the stepping motor is enabled to be separated from a motor positioning plate, a leading-out terminal of the stepping motor is also automatically separated from a testing terminal and automatically falls into a discharging groove, the labor is saved, and the detection efficiency is improved.

(3) The invention has four independent testing stations, testers can install the stepping motors on the testing stations for testing without intermission, and whether each stepping motor normally drives the code to the correct position is not required to be manually observed, the detection efficiency of the invention is 600/hour, compared with the existing manual detection efficiency of 300/hour, the detection efficiency is increased at double speed.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a rear perspective view of the present invention;

FIG. 3 is a schematic structural diagram of a measuring mechanism according to the present invention;

FIG. 4 is a partial view of a measurement station in the test mechanism of the present invention;

fig. 5 is a schematic structural view of the chuck mechanism of the present invention.

Reference numerals:

1. a protective cover; 2. a baffle plate; 3. a discharge chute; 4. a chassis; 5. a touch screen; 6. a trough; 7. a discharging push plate; 8. a test terminal; 9. a stepping motor; 10. a support frame; 11. a base plate; 12. an alarm buzzer; 13. a control switch; 14. a power switch; 15. a foot block; 16. a normal code line; 17. a French code; 18. an electromagnetic valve seat; 19. testing the terminal circuit board; 20. a motor fixing plate; 21. a main bracket plate; 22. a discharging cylinder; 23. a clamping head elastic cylinder; 24. a rear support plate; 25. a photoelectric sensor; 26. an induction test board; 27. pressing by a chuck; 28. a chuck; 29. ejecting the connecting rod; 30. then pushing the lower pressing plate; 31. pressing down the air cylinder; 32. pressing the connecting block; 33. a movable pressing shaft; 34. a moment plate; 35. a discharging pressing plate; 36. a one-way bearing; 37. photoelectric sensor support.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for the purpose of illustrating and explaining the present invention and are not to be construed as limiting the present invention.

As shown in FIG. 1, the present invention provides an automatic torque measuring device for a stepping motor, which is provided with a measuring mechanism and a control mechanism, wherein the control mechanism is provided with a case 4 for installing a motor control, the upper end surface of the case 4 is provided with a bottom plate 11, and the measuring mechanism is fixed on the bottom plate 11.

As shown in fig. 3, the measuring mechanism is provided with a main support plate 21, five pillars are arranged on the main support plate 21, each two adjacent pillars form a measuring station, four measuring stations are arranged in total, the structure of each measuring station is the same, and a stepping motor 9 can be installed and measured. Every measuring station all is equipped with motor fixed plate 20, and motor fixed plate 20 is fixed in on the main tributary frame board 21, and motor fixed plate 20 is equipped with the draw-in groove for fixed step motor 9. The upper end of the motor fixing plate 20 is fixedly connected with a discharging push plate 7, the discharging push plate 7 is divided into a transverse part and a vertical part, the vertical part is fixed on the motor fixing plate 20 and is provided with a groove which can be overlapped with a clamping groove on the motor fixing plate 20, a test terminal circuit board 19 is fixed at the groove of the vertical part, and a plurality of test terminals 8 are arranged on the test terminal circuit board 19 and are used for connecting lead terminals of a stepping motor 9; the transverse part of the discharging push plate 7 is connected with a discharging cylinder 22, and the discharging cylinder 22 is fixed on the upper end surface of the main support plate 21.

Further, as shown in fig. 4, the right side of each discharging cylinder 22 is connected with an ejection connecting rod 29, the lower end of the ejection connecting rod 29 is vertically connected with a discharging pressing plate 35, and under the action of the discharging cylinders 22, the ejection connecting rods 29 drive the discharging pressing plates 35 to eject the tested stepping motor 9.

Further, a chuck mechanism is disposed below the discharging pressure plate 35, as shown in fig. 5, the chuck mechanism is disposed in an elongated groove at the upper portion of the main support plate 21, and the chuck mechanism is provided with a chuck 28, a movable pressure shaft 33, an induction test plate 26 and a torque disc 34. The front end of the movable pressing shaft 33 is connected with a chuck 28, and a chuck pressing sheet 27 is arranged in the chuck 28 and is used for pressing the stepping motor 9. An induction test plate 26 is arranged at the joint of the chuck 28 and the movable pressing shaft 33, the induction test plate 26 is circular, and the induction test plate 26 is just clamped at the lower end of the long groove. The upper end of the induction test board 26 is fixedly provided with a photoelectric sensor bracket 37, and the photoelectric sensor bracket 37 is provided with a photoelectric sensor 25 for detecting the rotation condition of the stepping motor 9. The moment plate 34 is arranged at the rear of the induction test plate 26 and sleeved at the tail end of the movable pressing shaft 33, the weight line 16 is wound on the moment plate 34, the weight line 16 is connected with the weight 17, and the weight 17 is positioned between the two pillars of the main support plate 21 and used for testing the magnitude of the output moment of the stepping motor 9. A one-way bearing 36 is arranged between the induction test board 26 and the torque disc 34 and used for testing the positive and negative rotation conditions of the stepping motor 9.

Furthermore, a downward pressing connecting block 32 is arranged above the tail end of the movable pressing shaft 33, the upper end of the downward pressing connecting block 32 is connected with a downward pressing cylinder 31, the downward pressing connecting block 32 and the downward pressing cylinder 31 are fixed on a rear pushing downward pressing plate 30, the upper end of the rear pushing downward pressing plate 30 is vertically connected with a chuck tightening cylinder 23, a rear support plate 24 used for supporting the chuck tightening cylinder 23 is connected below the chuck tightening cylinder 23, and one end of the rear support plate 24 is fixed on the main support plate 21.

As shown in fig. 1, the lower end of the motor fixing plate 20 is connected to the baffle 2, the baffle 2 is fixed to the main bracket plate 21, the protective cover 1 is sleeved between the main bracket plate 21 and the rear bracket plate 24, the lower end of the rear bracket plate 24 is connected to the support frame 10, and the support frame 10 is fixed to the main bracket plate 21.

Still be equipped with blown down tank 3 on the bottom plate 11, blown down tank 3 inclines to place, and baffle 2 is connected to the one end of blown down tank 3, and bottom plate 11 is connected to one end for the step motor 9 that finishes with the test is derived.

The front end face of a case 4 of the control mechanism is sequentially provided with a touch screen 5, a power switch 14, a control switch 13 and an alarm buzzer 12, wherein the touch screen 5 is a man-machine conversation window; a power switch 14 for controlling the power supply of the entire apparatus; the number of the control switches 13 is four, and four measuring stations are correspondingly controlled respectively; the alarm buzzer 12 is an alarm device and automatically alarms when a defective product is found. The rear end face of the case 4 is provided with a solenoid valve seat 18, as shown in fig. 2, for supplying air to the solenoid valve in the case 4 in a concentrated manner. A trough 6 is arranged on the front side of the bottom of the case 4 and used for placing an unmeasured stepping motor 9; four foot blocks 15 are arranged at the bottom end of the case 4 and are respectively arranged at four corners of the bottom of the case 4 for supporting the whole device and achieving a stable effect.

The working principle of the invention is as follows:

manually installing the tested stepping motor 9 on the motor fixing plate 20, inserting the lead of the stepping motor into the test terminal 8, starting the power switch 14 and the control switch 13, and starting the test. The downward-pressing air cylinder 31 is pressed downward, the downward-pressing connecting block 32 is connected with the movable pressing shaft 33, the chuck loosening air cylinder 23 pushes forward to drive the movable pressing shaft 33 to push forward, the chuck pressing sheet 27 is promoted to press the shaft of the stepping motor 9 in four directions, and the stepping motor 9 is connected with the chuck 28. The pressing cylinder 31 rises, the pressing connecting block 32 is disconnected with the movable pressing shaft 33, the stepping motor 9 starts to rotate, the induction test board 26 is driven to rotate synchronously, and the photoelectric sensor 25 receives high and low level signals. When the stepping motor 9 rotates for a circle and the electric signal is sent to the CPU for comparison, if 60 high-low level signals are detected and the number of the signals is the same as that of the set high-low level signals, the pressing cylinder 31 pushes the pressing connecting block 32 to press downwards and is connected with the movable pressing shaft 33, the chuck loosening cylinder 23 retreats to pull out the movable pressing shaft 33, the chuck 28 is separated from the shaft of the stepping motor 9, and the weight 17 returns. Next, the discharging air cylinder 22 pushes the ejection connecting rod 29 and the discharging push plate 7, so that the stepping motor 9 and the stepping motor lead are separated from the measuring mechanism, and the stepping motor 9 falls into the discharging groove 3 along the same direction, thereby completing the test.

If the torque of the stepping motor 9 is bad, the weight 17 is not moved, the number of 60 high-low level signals detected by the photoelectric sensor 25 is different from the number of the set high-low level signals, the discharging cylinder 22 cannot be pushed forward, the leads of the stepping motor 9 and the stepping motor cannot be separated from the measuring mechanism, the alarm buzzer 12 gives an alarm, and the defective stepping motor is manually taken out to complete the test.

The invention has four independent testing stations, and testers can not mount the stepping motor 9 on the motor fixing plate 20. If the stepping motor 9 rotates reversely in the test, the one-way bearing 36 does not rotate reversely, the photoelectric sensor 25 cannot detect 60 high and low level signals, the system is regarded as bad, the alarm buzzer 12 gives an alarm, and the stepping motor 9 is taken out manually.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.