CN114370892A

CN114370892A - Detection device and method for rotary encoder

Info

Publication number: CN114370892A
Application number: CN202210034818.XA
Authority: CN
Inventors: 梁浩; 张盼盼
Original assignee: Shanghai Rongguan Electromechanical Equipment Co ltd
Current assignee: Shanghai Rongguan Electromechanical Equipment Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-04-19

Abstract

The invention relates to the technical field of detection of rotary encoders, and discloses a detection device and a detection method of a rotary encoder, which comprise a detection table, wherein detection points which are symmetrically distributed are arranged on two sides of the detection table, a driving assembly is arranged at one end of the detection table, the driving assembly comprises a compact rotary table, and an output shaft of the compact rotary table is fixedly connected with a driving rod; at least two transmission assemblies positioned on the same horizontal line are arranged in the detection table; through the multiunit check point that sets up the symmetry on examining test table, the multiunit check point passes through drive assembly and is connected with drive assembly, make drive assembly can pass through drive assembly and drive the rotation of axle of the encoder on the multiunit check point simultaneously in step, realize once rotatory a plurality of encoders of detection simultaneously, do not need a calibration to detect again, and then promote the detection efficiency of encoder by a wide margin, in addition, the axle of encoder can be connected with drive assembly fast through the shaft coupling, the detection installation of encoder has been made things convenient for greatly.

Description

Detection device and method for rotary encoder

Technical Field

The invention relates to the technical field of detection of rotary encoders, in particular to a detection device and a detection method of a rotary encoder.

Background

The photoelectric rotary encoder can convert mechanical quantities such as angular displacement and angular speed of an output shaft into corresponding electric pulses to be output in a digital quantity (REP) mode through photoelectric conversion, and the rotary encoder is divided into a single-path output mode and a double-path output mode. The technical parameters mainly comprise the pulse number per revolution (dozens to thousands of pulses exist), the power supply voltage and the like. The single-path output means that the output of the rotary encoder is a group of pulses, while the double-path output rotary encoder outputs two groups of pulses with 90-degree A/B phase difference, and the two groups of pulses can measure the rotating speed and judge the rotating direction.

After rotary encoder accomplished in production, need calibrate the detection to whether the precision of understanding the product of production is up to standard, among the prior art, when carrying out the calibration to the encoder, generally for single going on, lead to calibrating detection inefficiency, and when examining, the installation of encoder is also comparatively troublesome.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a detection device and a detection method of a rotary encoder, which have the advantages of simultaneously detecting a plurality of encoders and being convenient to install, and solve the problems that the efficiency of calibration detection is low because the encoders are generally calibrated singly, and the encoders are troublesome to install when being detected.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a detection device of a rotary encoder comprises a detection table, wherein detection points which are symmetrically arranged are arranged on two sides of the detection table;

a driving assembly is mounted at one end of the detection table and comprises a compact rotary table, and an output shaft of the compact rotary table is fixedly connected with a driving rod;

the detection table is internally provided with at least two transmission assemblies positioned on the same horizontal line, each transmission assembly comprises an outer shell, a worm wheel is rotatably connected inside the outer shell, the outer side wall of the worm wheel is meshed with a worm, the worm is positioned on the driving rod, two symmetrical rotating shafts are arranged at the rotating end of the worm wheel, and couplers are respectively arranged on the two rotating shafts;

and the outer side wall of the detection table is provided with a detection assembly and a collimator which are positioned on the same horizontal line.

Preferably, the compact turntable consists of a table body, a knob, a high-precision transmission gear and an output shaft.

By adopting the scheme, the tight rotary table can accurately transmit the output of the knob, so that the tight rotary table can accurately drive the driving rod to rotate.

Preferably, one end of the driving rod is connected with an output shaft of the compact rotary table, and the other end of the driving rod is connected with a bearing seat on the detection table.

By adopting the scheme, the compact rotary table is arranged above the detection table through the bearing seat.

Preferably, the outer side wall of the outer shell is provided with a sealing bearing.

By adopting the above scheme, when the convenient rotation of sealed bearing is through setting up, still realized sealed effect, avoid other impurity such as steam to get into in the shell.

Preferably, the shaft coupling includes the connection shell, the draw-in groove that the symmetry set up is seted up to the inside of connection shell, the one end threaded connection of connection shell has the connecting axle, the connecting axle with the output shaft of worm wheel, the other end of connection shell passes through the axis connection of bayonet lock and encoder.

Through adopting above-mentioned scheme, when the axle of installation encoder, through the inslot on the axle chucking income connection shell with the encoder, it is spacing to rethread bayonet lock, realizes the purpose of quick installation.

Preferably, the detection assembly comprises a prism rotary table, a standard prism is arranged on the prism rotary table, and the outer side wall of the standard prism has an angle scale value.

By adopting the scheme, the prism rotary table drives the standard prism to synchronously rotate, and the angle of the standard prism is changed when the standard prism rotates, so that the purpose of measuring the rotation angle is realized.

Preferably, a clamping assembly is arranged on a detection point of the detection table and comprises a clamping frame, a spring seat is fixedly connected to the outer side wall of the clamping frame, a lower pressing rod is slidably connected to one side of the spring seat, and a clamping plate is fixedly connected to one end of the lower pressing rod.

Through adopting above-mentioned scheme, when the installation encoder, through directly going into the holding frame with the encoder in, the pressure is exerted on the encoder on the grip block to the lower depression bar that makes on the holding frame, carries out quick centre gripping installation, makes the encoder when connecting circuit and axle, does not need the people hand to take always, promotes measurement personnel's detection convenience greatly.

A method of detecting a rotary encoder, comprising the steps of:

s1: adjusting the clamping distance of the clamping assembly according to the type of the encoder;

s2: aligning a collimator to a zero point of the detection assembly;

s3: quickly connecting a rotating shaft of the encoder to a rotating shaft of the transmission assembly through a coupler, and establishing electric connection between the encoder and the detection instrument;

s4: after all the encoders are installed, rotating knobs on the compact rotary table to enable the plurality of encoders to synchronously rotate and enable the prism rotary table to synchronously rotate;

s5: and recording the angle value on the prism rotary table and comparing the angle value with a detection instrument for calibration.

(III) advantageous effects

Compared with the prior art, the invention provides a detection device and a detection method of a rotary encoder, which have the following beneficial effects:

through the multiunit check point that sets up the symmetry on examining test table, the multiunit check point passes through drive assembly and is connected with drive assembly, make drive assembly can pass through drive assembly and drive the rotation of axle of the encoder on the multiunit check point simultaneously in step, realize once rotatory a plurality of encoders of detection simultaneously, do not need a calibration to detect again, and then promote the detection efficiency of encoder by a wide margin, in addition, the axle of encoder can be connected with drive assembly fast through the shaft coupling, the detection installation of encoder has been made things convenient for greatly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of an encoder and a detection station of the present invention;

FIG. 3 is a schematic structural view of a transmission assembly according to the present invention;

FIG. 4 is a schematic structural view of the coupling of the present invention;

FIG. 5 is a schematic view of a clamping assembly according to the present invention;

FIG. 6 is a schematic structural diagram of a detection assembly and a collimator according to the present invention.

In the figure: 10. a detection table;

20. a drive assembly; 21. a compact turntable; 22. a drive rod;

30. a transmission assembly; 31. an outer housing; 32. a worm gear; 33. a worm; 34. sealing the bearing; 35. a coupling; 351. a connecting shell; 352. a connecting shaft; 353. a bayonet lock;

40. a detection component; 41. a prism turret; 42. a standard prism;

50. a collimator;

60. a clamping assembly; 61. a clamping frame; 62. a spring seat; 63. a lower pressure lever; 64. and (4) clamping the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

A detection device of a rotary encoder comprises a detection table 10, wherein detection points which are symmetrically arranged are arranged on two sides of the detection table 10;

a driving assembly 20 is installed at one end of the detection table 10, the driving assembly 20 comprises a compact rotary table 21, the compact rotary table 21 consists of a table body, a knob, a high-precision transmission gear and an output shaft, the output shaft of the compact rotary table 21 is fixedly connected with a driving rod 22, one end of the driving rod 22 is connected with the output shaft of the compact rotary table 21, and the other end of the driving rod 22 is connected with a bearing seat on the detection table 10;

the detection table 10 is internally provided with at least two transmission assemblies 30 which are positioned on the same horizontal line, each transmission assembly 30 comprises an outer shell 31, the inside of each outer shell 31 is rotatably connected with a worm wheel 32, the outer side wall of each worm wheel 32 is meshed with a worm 33, the outer side wall of each outer shell 31 is provided with a sealing bearing 34, each worm 33 is positioned on a driving rod 22, two symmetrical rotating shafts are arranged at the rotating end of each worm wheel 32, couplers 35 are respectively arranged on the two rotating shafts, each coupler 35 comprises a connecting shell 351, clamping grooves which are symmetrically arranged are formed in the connecting shell 351, one end of each connecting shell 351 is connected with a connecting shaft 352 in a threaded mode, each connecting shaft 352 is connected with the output shaft of each worm wheel 32, and the other end of each connecting shell 351 is connected with the shaft of the encoder through a clamping pin 353;

the outer side wall of the detection table 10 is provided with a detection assembly 40 and a collimator 50 which are positioned on the same horizontal line, the detection assembly 40 comprises a prism rotary table 41, a standard prism 42 is arranged on the prism rotary table 41, and the outer side wall of the standard prism 42 has an angle scale value.

Referring to fig. 1-6, in use, first, the collimator 50 is aligned to the zero point on the standard prism 42 to perform angle detection and calibration, after calibration is completed, the rotating shaft of the encoder is quickly connected to the rotating shaft of the worm gear 32 through the coupler 35, so that the worm gear 32 can drive the shaft of the encoder to rotate, and the signal conductor of the encoder is connected to the signal input end of the external detection display screen, after all the encoders are installed, the knob on the compact turntable 21 is rotated to synchronously rotate a plurality of encoders, at this time, the prism turntable 41 connected to the transmission assembly 30 also rotates synchronously, so that the standard prism 42 on the prism turntable 41 rotates along with the rotation, so that the angle on the standard prism 42 changes, and then the calibration is performed by recording the angle value on the standard prism 42 and comparing the angle value with the detection instrument.

Example two

The function of facilitating clamping is added on the basis of the first embodiment.

Be equipped with clamping assembly 60 on detecting the check point of platform 10, clamping assembly 60 includes clamping frame 61, and clamping frame 61's lateral wall fixedly connected with spring holder 62, one side sliding connection of spring holder 62 has depression bar 63, and the one end fixedly connected with grip block 64 of depression bar 63.

Referring to fig. 1-6, when the encoder is installed, the encoder is directly clamped into the clamping frame 61, so that the lower pressing rod 63 on the clamping frame 61 applies pressure to the encoder on the clamping plate 64, the encoder is quickly clamped and installed, the encoder does not need to be taken by hands all the time when a circuit and a shaft are connected, and the detection convenience of detection personnel is greatly improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A detection device for a rotary encoder, characterized in that: it comprises a detection table (10), and both sides of the detection table (10) are provided with symmetrically arranged detection points;

A drive assembly (20) is installed on one end of the detection table (10), the drive assembly (20) includes a tight turntable (21), and a drive rod (22) is fixedly connected to an output shaft of the tight turntable (21);

At least two transmission assemblies (30) located on the same horizontal line are provided inside the detection table (10), and the transmission assemblies (30) include an outer casing (31), and the inner rotatable connection of the outer casing (31) There is a worm wheel (32), the outer side wall of the worm wheel (32) is engaged with a worm (33), the worm (33) is located on the driving rod (22), and the rotating end of the worm wheel (32) is provided with Two symmetrical rotating shafts, and couplings (35) are respectively installed on the two rotating shafts;

A detection assembly (40) and a collimator (50) on the same horizontal line are installed on the outer side wall of the detection table (10).

2 . The detection device of a rotary encoder according to claim 1 , wherein the compact turntable ( 21 ) is composed of a table body, a knob, a high-precision transmission tooth and an output shaft. 3 .

3. A detection device for a rotary encoder according to claim 1, characterized in that: one end of the drive rod (22) is connected to the output shaft of the tight turntable (21), and the other end is connected to the detection The bearing seat connection on the table (10).

4. A detection device for a rotary encoder according to claim 1, characterized in that: the outer side wall of the outer casing (31) is provided with a sealed bearing (34).

5 . The detection device of a rotary encoder according to claim 1 , wherein the coupling ( 35 ) comprises a connecting shell ( 351 ), and a symmetrical arrangement is provided inside the connecting shell ( 351 ). 6 . One end of the connecting shell (351) is threadedly connected with a connecting shaft (352), the connecting shaft (352) is connected with the output shaft of the worm gear (32), and the other end of the connecting shell (351) One end is connected with the shaft of the encoder through a bayonet (353).

6. The detection device of a rotary encoder according to claim 1, wherein the detection assembly (40) comprises a prism turntable (41), and a standard prism (42) is provided on the prism turntable (41). ), the outer sidewall of the standard prism (42) has an angle scale value.

7. A detection device for a rotary encoder according to claim 1, characterized in that: a clamping component (60) is provided on the detection point of the detection table (10), and the clamping component (60) It includes a clamping frame (61), the outer side wall of the clamping frame (61) is fixedly connected with a spring seat (62), and one side of the spring seat (62) is slidably connected with a pressing rod (63). A clamping plate (64) is fixedly connected to one end of the pressing rod (63).

8. a detection method of a rotary encoder, the detection device of a rotary encoder according to any one of claims 1-7, is characterized in that, comprises the following steps:

S1: Adjust the clamping distance of the clamping assembly (60) according to the encoder model;

S2: Align the collimator (50) with the zero point of the detection assembly (40);

S3: Quickly connect the rotary shaft of the encoder to the rotary shaft of the transmission assembly (30) through the coupling (35), and establish an electrical connection between the encoder and the detection instrument;

S4: After all the encoders are installed, turn the knob on the compact turntable (21) to make the multiple encoders rotate synchronously, so that the prism turntable (41) also rotates synchronously;

S5: Record the angle value on the prism turntable (41) and compare it with the testing instrument for calibration.