CN111478142A

CN111478142A - Method for improving assembly precision of conductive slip ring

Info

Publication number: CN111478142A
Application number: CN202010172322.XA
Authority: CN
Inventors: 陈晓波; 徐燕铭; 施英莹; 王永松; 张洪辉; 李林; 黄于晋; 习俊通
Original assignee: Shanghai Jiaotong University; Shanghai Aerospace Equipments Manufacturer Co Ltd
Current assignee: Shanghai Jiaotong University; Shanghai Aerospace Equipments Manufacturer Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-07-31

Abstract

The invention discloses a method for improving the assembly precision of a conductive slip ring, which belongs to the technical field of conductive slip ring assembly and comprises a plurality of slip rings and a pogo pin, wherein two adjacent slip rings are separated by an insulator, an industrial high-precision camera is adopted for shooting and recording the contact process and the contact position of a V-shaped groove arranged on the pogo pin and the slip rings for many times, and the recorded data is analyzed to obtain the optimal mounting position of the pogo pin and the V-shaped groove. The method provided by the invention is repeated for multiple times, data is recorded, and the data is analyzed to obtain the optimal mounting position of the elastic needle and the slip ring, so that the mounting precision and efficiency are improved, the mounting process is traceable, and the subsequent mounting operation is facilitated.

Description

Method for improving assembly precision of conductive slip ring

Technical Field

The invention belongs to the technical field of conductive slip ring assembly, and particularly relates to a method for improving the assembly precision of a conductive slip ring.

Background

The conductive slip ring can also be called a slip ring, a collector ring and the like, and is used in an electromechanical system needing rotation, such as a turntable, a robot rotating joint and the like, and is an electric or signal transmission device for realizing two relative rotating mechanisms. Compared with the transmission of wires, an infinite number of rotations can be achieved.

The conductive slip ring has different structural modes, but in principle, most of the conductive slip rings ensure the electrical conduction by means of pressure contact between a conductive elastic needle and a conductor on a ring body. After aging through multiple rotations, the relative position between the pogo pin and the conductor may move, which may cause poor transmission. To cope with this problem, there are now mainly 2 approaches: 1. and a V-shaped groove is formed in the center of the surface of the conductor. 2. The assembly precision of the bullet needle and the electric conductor is improved, and the bullet needle is located at the center of the bottom of the V-shaped groove as much as possible.

As for the second means, the conventional assembly method relies on mechanical positioning or manual visual determination of the relative contact position between the pogo pin and the conductive body. Due to mechanical errors or subjective judgment of personnel, deviation of the contact position of the bullet needle and the bottom of the V-shaped groove can be caused. And because the bullet needle is with the electric conductor is the relative concentric movement, because can't accomplish complete concentricity, in rotatory process, probably because the decentraction arouses the bullet needle and the V-arrangement groove produces the position offset. Meanwhile, the method cannot record data of the position after final combination, so that the traceability is not available.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to solve the problem that the existing conductive slip ring assembly system is difficult to accurately install a spring pin and the bottom of a V-shaped groove.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the method for improving the assembly precision of the conductive slip ring comprises a plurality of slip rings and elastic pins, shooting and recording the contact process and the contact position of the elastic pins and V-shaped grooves formed in the slip rings by using an industrial high-precision camera for many times, and analyzing the recorded data to obtain the optimal mounting positions of the elastic pins and the V-shaped grooves.

Preferably, the two adjacent slip rings are separated by an insulator.

Preferably, the method is carried out by adopting the following equipment: including display screen, visual detection unit, level (l) ing workstation and detecting element displacement platform, the display screen is connected with the visual detection unit electricity, the level (l) ing workstation sets up on detecting element displacement platform, the symmetry is equipped with two sectional fixtures, two on the level (l) ing workstation rotate through the bearing between the sectional fixture and be connected with the pivot to install the slip ring linearity equidistant in the pivot, just the V type groove is carved with on the slip ring, the bullet needle stretches into the V type inslot that corresponds, still be equipped with power on the level (l) ing workstation and insert the guide rail, power is equipped with the rotating electrical machines on inserting the guide rail, the rotating electrical machines is used for the epaxial slip ring rotation of drive pivot.

Preferably, the horizontal adjusting workbench and the power access guide rail are arranged on the same horizontal line, and an adjusting knob for adjusting the height of the mounting fixture is arranged on the horizontal adjusting workbench.

Preferably, the high-precision camera is installed on the visual detection unit, the high-precision camera is used for shooting the slip ring and the spring needle, and the display screen is used for displaying a shot picture of the high-precision camera.

Preferably, the rotating motor can move left and right along the length direction of the power access guide rail along with the power access guide rail.

Preferably, the rotating motor is arranged on the power access guide rail through a mounting bracket.

Preferably, the visual detection unit is fixed at the upper end of a fixed support of the horizontal adjustment workbench, and the fixed support is vertically arranged.

Preferably, the output end of the rotating motor is provided with a buckle, the buckle is close to a clamping groove formed in a mounting fixture on one side of the rotating motor, and the buckle is matched with the clamping groove in a clamped mode.

Preferably, the method specifically comprises the following steps: the slip ring is installed on the installation clamp, the output end of the rotating motor is located at the same height by adjusting the height of the installation clamp, the rotating motor is moved by utilizing a power access guide rail, a clamping groove is arranged on the rotating motor and the installation clamp in a clamped mode, the rotating motor drives the slip ring to rotate between the two installation clamps, a visual detection unit shoots a picture of contact between the bullet needle and a V-shaped groove in the slip ring, the picture is displayed through a display screen, when the rotating motor drives the slip ring to rotate, the offset of the bullet needle relative to the position of the V-shaped groove is recorded when one end of the bullet needle is just opposite to the V-shaped groove in the corresponding slip ring, the operation is repeated for multiple times, the average value is obtained by recording data, and the.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

according to the high-precision conductive slip ring detection and assembly system and the operation method thereof, an industrial high-resolution camera is adopted for shooting and recording the contact process and the contact position of the elastic needle and the slip ring in the conductive slip ring assembly process for many times, the recorded data are analyzed to obtain the optimal installation position of the elastic needle and the slip ring, the contact position of the elastic needle and the V-shaped groove of the slip ring is recorded and recorded, the data are repeatedly recorded for many times, and the data are analyzed to obtain the optimal installation position of the elastic needle and the slip ring, so that the installation precision and efficiency are improved, the installation process has traceability, and the subsequent installation operation is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a high-precision conductive slip ring detection assembly system according to the present invention;

FIG. 2 is a front view of the high precision conductive slip ring inspection assembly of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

fig. 4 is a top view of a high precision conductive slip ring inspection assembly system of the present invention.

In the figure: 100. a display screen; 200. a visual detection unit; 300. a horizontal adjustment work table; 310. fixing a bracket; 400. a detection unit displacement platform; 500. adjusting a knob; 600. a rotating electric machine; 610. buckling; 620. mounting a bracket; 700. the power is connected into the guide rail; 800. installing a clamp; 810. slip ring, 820, pogo pin.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a method for improving assembly accuracy of a conductive slip ring according to this embodiment includes a plurality of slip rings 810 and pogo pins 820, shooting and recording a contact process and a contact position of a V-shaped groove formed on the pogo pins 820 and the slip rings 810 by using an industrial high-accuracy camera for a plurality of times, analyzing recorded data to obtain an optimal position for installing the pogo pins 820 and the V-shaped groove, specifically, installing the slip rings 810 on an installation fixture 800, adjusting a height of the installation fixture 800 to make output ends of a rotating electrical machine 600 at a same height, and moving the rotating electrical machine 600 by using a power access guide rail 700 to make the rotating electrical machine 600 and the installation fixture 800 have a slot for being clamped, the rotating electrical machine 600 driving the slip rings 810 to rotate between the two installation fixtures 800, shooting a picture of the pogo pins 820 contacting the V-shaped groove formed on the slip rings 810 by a vision detection unit 200, and displaying the, and when the rotating motor 600 drives the slip ring 810 to rotate, so that one end of the elastic pin 820 is opposite to the V-shaped groove on the corresponding slip ring 810, the offset of the elastic pin 820 relative to the position of the V-shaped groove is recorded, the operation is repeated for multiple times, the data is recorded to obtain an average value, and the data is analyzed to obtain the optimal installation position of the elastic pin 820 and the slip ring 810.

In this embodiment, two adjacent slip rings 810 are separated by an insulator, and the insulator is made of rubber material, so as to prevent electrical connection between two adjacent slip rings 810 and protect the slip rings 810 to a certain extent.

Further, the assembly method is carried out by adopting the following equipment: including display screen 100, visual detection unit 200, level (l) ing workstation 300 and detecting element displacement platform 400, display screen 100 is connected with visual detection unit 200 electricity, level (l) ing workstation 300 sets up on detecting element displacement platform 400, the symmetry is equipped with two sectional fixture 800 on the level (l) ing workstation 300, it is connected with the pivot to rotate through the bearing between two sectional fixture 800, and install slip ring 810 linear equidistant in the pivot, and V type groove is carved on slip ring 810, it stretches into the V type inslot that corresponds to play needle 820, still be equipped with power on the level (l) ing workstation 300 and insert guide rail 700, power is inserted and is equipped with rotating electrical machines 600 on the guide rail 700, rotating electrical machines 600 is used for the epaxial slip ring 810 rotation of drive.

In addition, horizontal adjustment workstation 300 and power access guide rail 700 set up on same water flat line, be equipped with on the horizontal adjustment workstation 300 and be used for adjusting mounting fixture 800 height's adjust knob 500, adjust knob 500 adjusts mounting fixture 800's height, make rotating electrical machines 600's output and mounting fixture 800 be located same height, be convenient for utilize rotating electrical machines 600 to drive the pivot rotation between two mounting fixtures 800, thereby realize driving the epaxial sliding ring 810 pivoted effect of commentaries on classics.

Specifically, the high-precision camera is installed on the visual detection unit 200, and is used for shooting the slip ring 810 and the bullet pin 820, and the display screen 100 is used for displaying the shot picture of the high-precision camera, and the high-precision camera shoots and records the process of the contact of the bullet pin 820 and the adjacent slip ring 810 in the V-shaped groove, so that the high-precision camera is convenient to watch and analyze, can also store videos and establish a database, and provides data analysis for later installation.

It is worth noting that the rotating motor 600 can move left and right along the length direction of the power access guide rail 700 along with the power access guide rail 700, the power access guide rail 700 drives the rotating motor 600 to slowly approach the detection unit displacement platform 400, the installation is changed from manual operation into mechanical control, and the operation is faster and more accurate.

Further, the rotating electrical machine 600 is provided on the power receiving guide rail 700 through a mounting bracket 620.

Further, the vision detecting unit 200 is fixed to the upper end of the fixing bracket 310 of the horizontal adjustment table 300, and the fixing bracket 310 is vertically disposed.

It is worth to say that be equipped with buckle 610 on the output of rotating electrical machines 600, be provided with the draw-in groove on the sectional fixture 800 that is close to one side of rotating electrical machines 600, and buckle 610 and draw-in groove joint cooperation are convenient for when the output of rotating electrical machines 600 is close to sectional fixture 800 for buckle 610 joint is in the draw-in groove, and the pivot between sectional fixture 800 passes through the bearing and rotates along with the rotating electrical machines 600 output simultaneously.

The invention discloses a method for improving the assembly precision of a conductive slip ring, which comprises the following steps: the method comprises the steps of installing the slip ring 810 on the installation clamp 800, adjusting the height of the installation clamp 800 to enable the output end of the rotating motor 600 to be at the same height, utilizing power to be connected into the guide rail 700 to move the rotating motor 600, enabling the rotating motor 600 to be clamped with a clamping groove formed in the installation clamp 800, enabling the rotating motor 600 to drive the slip ring 810 to rotate between the two installation clamps 800, shooting a picture of contact between the bullet pins 820 and V-shaped grooves in the slip ring 810 through the visual detection unit 200, displaying the picture through the display screen 100, recording offset of the bullet pins 820 relative to the positions of the V-shaped grooves when the rotating motor 600 drives the slip ring 810 to rotate and enabling one ends of the bullet pins 820 to face the V-shaped grooves in the corresponding slip ring 810, repeating the steps and recording data to obtain an average value, and analyzing the data.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method of improving accuracy of assembly of a conductive slip ring, comprising a plurality of slip rings (810) and pogo pins (820), characterized by: and shooting and recording the contact process and the contact position of the V-shaped groove arranged on the bullet needle (820) and the slip ring (810) by adopting an industrial high-precision camera for many times, and analyzing the recorded data to obtain the optimal positions for installing the bullet needle (820) and the V-shaped groove.

2. The method of improving the assembly accuracy of a conductive slip ring of claim 1, wherein: the two adjacent slip rings (810) are separated by an insulator.

3. The method of improving the assembly accuracy of a conductive slip ring of claim 1, wherein: the method is carried out by adopting the following equipment: comprises a display screen (100), a visual detection unit (200), a horizontal adjustment workbench (300) and a detection unit displacement platform (400), the display screen (100) is electrically connected with the visual detection unit (200), the horizontal adjusting workbench (300) is arranged on the detection unit displacement platform (400), two mounting clamps (800) are symmetrically arranged on the horizontal adjusting workbench (300), a rotating shaft is rotatably connected between the two mounting clamps (800) through a bearing, and the slip ring (810) is linearly and equidistantly arranged on the rotating shaft, the V-shaped groove is carved on the slip ring (810), the elastic needle (820) extends into the corresponding V-shaped groove, a power access guide rail (700) is further arranged on the horizontal adjusting workbench (300), the power access guide rail (700) is provided with a rotating motor (600), and the rotating motor (600) is used for driving a sliding ring (810) on the rotating shaft to rotate.

4. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: the horizontal adjusting workbench (300) and the power access guide rail (700) are arranged on the same horizontal line, and an adjusting knob (500) for adjusting the height of the mounting fixture (800) is arranged on the horizontal adjusting workbench (300).

5. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: the high-precision camera is installed on the visual detection unit (200), the high-precision camera is used for shooting the slip ring (810) and the elastic needle (820), and the display screen (100) is used for displaying a shooting picture of the high-precision camera.

6. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: the rotating motor (600) can move left and right along the length direction of the power access guide rail (700) along with the power access guide rail (700).

7. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: the rotating motor (600) is arranged on the power access guide rail (700) through a mounting bracket (620).

8. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: the visual detection unit (200) is fixed at the upper end of a fixing support (310) of the horizontal adjustment workbench (300), and the fixing support (310) is vertically arranged.

9. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: be equipped with buckle (610) on the output of rotating electrical machines (600), be close to be provided with the draw-in groove on mounting fixture (800) of one side of rotating electrical machines (600), just buckle (610) and draw-in groove joint cooperation.

10. A method of improving the accuracy of assembly of a conductive slip ring according to claim 3, wherein: the method specifically comprises the following steps: mounting the slip ring (810) on the mounting jig (800), adjusting the height of the mounting jig (800) so that the output ends of the rotating electrical machine (600) are at the same height, and the power is connected into the guide rail (700) to move the rotating motor (600), so that the rotating motor (600) is clamped with the clamping grooves arranged on the mounting clamps (800), the rotating motor (600) drives the sliding ring (810) to rotate between the two mounting clamps (800), the visual detection unit (200) shoots a picture of the contact between the elastic needle (820) and the V-shaped groove on the sliding ring (810), and displays the picture through the display screen (100), and when the rotating motor (600) drives the slip ring (810) to rotate, when one end of the elastic pin (820) is opposite to the V-shaped groove on the corresponding sliding ring (810), recording the offset of the bullet needle (820) relative to the position of the V-shaped groove, repeating for multiple times, recording data to obtain an average value, and analyzing the data to obtain the optimal mounting position of the elastic needle (820) and the slip ring (810).