CN110850133A

CN110850133A - Mechanical indicating ammeter pointer balancing device

Info

Publication number: CN110850133A
Application number: CN201911212578.2A
Authority: CN
Inventors: 张乃龙
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-28

Abstract

The invention relates to a mechanical indication ammeter pointer balancing device, which is mainly used for automatic balancing processing of a mechanical indication ammeter pointer, and specifically comprises a conveyor belt, a camera, a suction disc, a screw rod and a control device, wherein the conveyor belt continuously conveys an ammeter to a first station, the camera shoots and analyzes a deflection angle of a current pointer relative to a zero point, a wide finger clamps the ammeter to enable the ammeter to rotate reversely by 90 degrees, and an adsorption surface of the suction disc moves to a third station under the action of the screw rod; according to the earlier stage analysis data, the dispensing sliding cylinder drives the dispensing tube to balance weight and drip glue on the electric meter, and after the dispensing operation is completed, the automatic moving-out of the electric meter is completed under the combined action of the indexing cylinder and the material taking sliding table cylinder. The invention realizes the function of automatically balancing the balance weight according to the initial deflection angle of the pointer of the ammeter, solves the processing problem of balancing mainly by a manual spot welding mode at present, improves the efficiency and the stability of balancing, and greatly reduces the production cost.

Description

Mechanical indicating ammeter pointer balancing device

Technical Field

The invention belongs to the field of mechanical indication ammeter manufacturing, and relates to a mechanical indication ammeter pointer balancing device which is mainly used for automatic balancing processing of a mechanical indication ammeter pointer.

Technical Field

The mechanical indicating electric meter is an electric meter which uses electromagnetic force to make the movable part of the measuring mechanism produce mechanical action so as to reflect the measured size. The mechanical pointer electricity meter is widely used due to its strong adaptability and high stability. The measurement accuracy in use is directly affected by the zero pointer balance accuracy. Currently, pointer balance adjustment is mainly performed in a manual spot welding mode. Along with the annual increase of domestic human cost, the processing cost of the ammeter is increased, and in addition, due to unpredictable human factors, the yield and the supply period cannot be ensured by completely depending on human processing. Therefore, the design has the important significance of reducing the labor cost and increasing the production efficiency and the product stability by the device with the automatic weight balancing and balancing functions.

Disclosure of Invention

The invention aims to reduce the manual use cost, increase the production efficiency, solve the problem of balance adjustment of a mechanical indicating ammeter pointer, and design an automatic counterweight device integrating automatic workpiece taking, positioning and counterweight functions by considering the integrated functions of automatic workpiece taking, positioning and counterweight.

The automatic counterweight device comprises automatic overturning, automatic taking, positioning, counterweight and the like. In order to achieve the purpose, the technical scheme of the invention is as follows:

the conveying belt continuously conveys the electric meter to a detection position, the camera shoots the electric meter dial plate and analyzes the deflection angle of the current pointer relative to the zero point, and the size of the required balance weight is calculated according to the size of the angle.

The broad finger presss from both sides tight ammeter, rotates 90 degrees under revolving cylinder drives, makes ammeter reversal 90 degrees, and the dial plate is upwards.

The feeding sliding platform on the screw nut drives the sucker to move downwards, the sucker sucks the meter dial, and the feeding sliding platform drives the sucker to move upwards to suck the meter; the screw rod is driven by the motor to rotate, a screw rod nut is driven to horizontally move along the direction of the screw rod, and the feeding sliding platform and the ammeter are driven to move to the next station; and the feeding sliding platform moves downwards, the sucking disc releases the electric meter to move upwards after reaching the balance station, and the lead screw nut transversely moves back to the initial station to enter the next working cycle.

The X-direction positioning plate and the Y-direction positioning plate push the electric meter under the driving of the air cylinder, and the electric meter is fixed on the positioning block; the dispensing sliding platform moves downwards to drive the dispensing tube to move downwards to the counter weight of the pointer of the ammeter; and carrying out counterweight glue dripping according to the early-stage analysis data; after the glue is dripped, the glue dispensing sliding platform moves upwards to drive the glue dispensing pipe to move back to the initial position upwards.

The indexing cylinder rotates inwards for 180 degrees, and the material taking sliding platform drives the sucker to move downwards to the position of the meter dial and adsorb the meter; the material taking sliding platform moves upwards and rotates outwards 180 degrees under the driving of the indexing cylinder, and the electric meter is moved out of the station to complete the balance weight of the pointer of the electric meter.

Advantageous effects

The invention realizes the function of automatically balancing the balance weight according to the initial deflection angle of the pointer of the ammeter, solves the processing problem of balancing mainly by a manual spot welding mode at present, improves the efficiency and the stability of balancing, and greatly reduces the production cost.

Drawings

FIG. 1 is an isometric view of the invention in its entirety

FIG. 2 is a diagram of the wide finger flip position of the present invention

In the figure, 1, a frame, 2-belt wheel, 3, a conveying belt, 4, an electric meter positioned at a first station, 5, a camera, 6, a limit sensor, 7, an indexing cylinder, 8, a sucker, 9, a fixing plate, 10, a material taking sliding table cylinder, 11, a positioning block, 12, a glue dispensing sliding table cylinder, 13, a glue dispensing tube, 14, an X-direction positioning plate, 15, a Y-direction positioning plate, 16, a feeding sliding table cylinder, 17, a sucker, 18, a fixing plate, 19, a lead screw nut, 20, a lead screw, 21, a bottom plate, 22, a turnover plate, 23, a wide finger, 24, a rotating cylinder, 25, an electric meter positioned at a second station, 26, an electric meter positioned at a third station

Detailed Description

In the whole working process of the device, three important stations are a first station, a second station and a third station, the collection of the deflection angle of the current pointer of the ammeter relative to the zero point is completed at the first station, the glue dripping of the counterweight is completed at the third station, the ammeter is completed from the first station to the third station through automatic piece taking at the second station, and the detailed description is carried out according to the whole working process.

To wait to detect the ammeter and arrange respectively in the conveyer belt on, carry the ammeter to the detection position by the conveyer belt in succession, first station promptly, the concrete realization mode of transportation does: conveyer belt 2 installs in frame 1, and ammeter 4 places on conveyer belt 3, and conveyer belt 3 intermittent motion under band pulley 2 drives, moves the baffle position when the ammeter, and 3 stall of conveyer belt behind spacing sensor 6 detected ammeter 4. The camera 5 mounted on the side baffle plate shoots the dial of the electric meter 4, and transmits the shot to the computer for image processing, and the offset data of the pointer relative to the zero point is analyzed.

The broad finger presss from both sides tight ammeter, rotates 90 degrees under revolving cylinder drives, makes ammeter reversal 90 degrees, and the dial plate makes progress, and the ammeter reachs the second station, realizes automatic upset, and concrete realization process does: the wide fingers 23 are arranged on the turnover plate 22, and the turnover plate 22 is fixed on the bottom plate 21 through a rotating shaft; the rotating shaft is connected with a rotating cylinder 24, and the turnover plate 22 rotates for 90 degrees in a reciprocating manner under the driving of the cylinder 24.

The electric meter is transferred from the second station to the third station by the following specific process:

the feeding sliding table cylinder 16 is arranged on a screw nut 19 through a fixing plate 18 and is driven by the screw nut 19 to do reciprocating horizontal linear motion, and the sucking disc 17 is arranged on the feeding sliding table cylinder 16 and is driven by the feeding sliding table cylinder 16 to vertically move up and down; the sucker sucks the ammeter dial at the second station, and the feeding sliding table cylinder 16 drives the sucker to move upwards to suck the ammeter; the screw nut 19 is driven by the motor to rotate, and the screw nut is driven to horizontally move along the screw direction to drive the ammeter to move to a third station; the feeding sliding table cylinder 16 drives the sucker to move downwards, the sucker releases the ammeter to a third station, namely a balance station, then the sucker moves upwards, and the lead screw nut transversely moves back to the second station to enter the next working cycle.

The counter weight process divide into ammeter location, counter weight glue dripping, get a three stage automatically, specifically do: after the ammeter reaches the third station, the X-direction positioning plate and the Y-direction positioning plate push the ammeter under the driving of the cylinder, and the ammeter is fixed on the positioning block; the dispensing sliding table cylinder driving dispensing rubber tube moves downwards to the counter weight position of the pointer of the ammeter, and counter weight glue dripping is carried out according to early-stage analysis data, and after glue dripping, the dispensing sliding table cylinder driving dispensing rubber tube moves upwards to return to the initial position; the indexing cylinder rotates 180 degrees inwards, the material taking sliding table cylinder 10 drives the sucker to move downwards to the position of the meter dial and adsorb the electric meter, the material taking sliding table cylinder 10 moves upwards, the material taking sliding table cylinder drives the sucker to rotate 180 degrees outwards, and the electric meter is moved out of the third station to complete electric meter pointer counterweight.

The specific implementation of ammeter location is as follows: after the ammeter reaches a third station, the X-direction positioning plate is driven by the cylinder to perform X-direction positioning on the ammeter, the Y-direction positioning plate is driven by the cylinder to perform Y-direction positioning on the ammeter, the X-direction positioning plate 14 and the Y-direction positioning plate 15 are installed on the cylinder and horizontally move under the pushing of the cylinder, and the positioning block 11 is fixed on the bottom plate 21 and matched with the X, Y-direction positioning plate to position the ammeter;

the specific structural relationship of the counterweight glue dripping is as follows:

the dispensing tube 13 is arranged on the dispensing sliding table cylinder 12 and can move along with the dispensing sliding table cylinder 12; the dispensing sliding table cylinder 12 is arranged on the bottom plate 21 through a fixed support;

the specific structural relationship in the automatic pickup process is as follows: the material taking sliding table cylinder 10 is arranged on the indexing rotary table 7 through a fixing plate 9 and rotates 180 degrees in a reciprocating manner along with the indexing rotary table 7; the sucking disc 8 is fixed on getting material slip table cylinder 10.

Claims

1. The utility model provides a mechanical type instructs ammeter pointer balancing unit which characterized in that: the automatic feeding device comprises a rack (1), a belt wheel (2), a conveying belt (3), a camera (5), a limiting sensor (6), an indexing cylinder (7), a sucker (8), a fixing plate (9), a material taking sliding table cylinder (10), a positioning block (11), a glue dispensing sliding table cylinder (12), a glue dispensing pipe (13), an X-direction positioning plate (14), a Y-direction positioning plate (15), a feeding sliding table cylinder (16), a sucker (17), a fixing plate (18), a lead screw nut (19), a lead screw (20), a bottom plate (21), a turnover plate (22), a wide finger (23) and a rotary cylinder (24);

the conveying belt wheel (2) is mounted on the rack (1), the conveying belt (3) is driven by the belt wheel (2) to move intermittently, the conveying belt (3) is used for conveying an ammeter to be detected, the limiting sensor (6) is used for detecting whether the ammeter reaches a first station or not, and when the ammeter reaches the first station, a signal is sent out to stop the operation of the conveying belt (3); the camera (5) arranged on the side baffle is used for photographing the ammeter dial reaching the first station and transmitting the photographed ammeter dial to the computer;

the wide finger (23) clamps the ammeter to be detected, the rotating cylinder (24) rotates to drive the turnover plate (22), the wide finger (23) rotates along with the turnover plate (22) to drive the ammeter to turn over for 90 degrees, and the dial plate turns over upwards;

the feeding sliding table cylinder (16) slides downwards to drive the sucker (17) to move to the position of the ammeter dial plate to adsorb the dial plate, and then the feeding sliding cylinder (16) slides upwards to drive the sucker (17) and the ammeter to move upwards;

the screw rod (20) rotates to drive the screw rod nut (19) to move horizontally, and the feeding sliding cylinder (16) arranged on the fixing plate (18) drives the ammeter to translate forwards to a third station; the feeding sliding table cylinder (16) slides downwards, the suction disc (17) releases the ammeter, the feeding sliding table cylinder (16) slides upwards, and the lead screw (20) rotates reversely to drive the lead screw nut (19) and the feeding sliding table cylinder (16) to return to a second station;

the X-direction positioning plate (14) and the Y-direction positioning plate (15) move forwards simultaneously under the pushing of the air cylinder, and the electric meter is clamped on the positioning block (11) and used for realizing the positioning of the electric meter on the positioning block;

a dispensing rubber tube (13) arranged on the dispensing sliding table cylinder (12) moves to an ammeter pointer counterweight position along with the dispensing sliding table cylinder (12) to dispense and balance weight, and then the dispensing sliding table cylinder (12) slides upwards to drive the dispensing rubber tube to return;

the material taking sliding table cylinder (10) is driven by the indexing turntable (7) to rotate 180 degrees, then the material taking sliding table cylinder (10) drives the sucker (8) to slide downwards, so that the sucker (8) adsorbs an ammeter dial, the material taking sliding table cylinder (10) drives the ammeter to slide upwards, and meanwhile, the indexing turntable (7) rotates 180 degrees in the reverse direction, so that the ammeter moves out of a station.