CN112518597A

CN112518597A - Grinding disc convenient to replace for grinding during telephone manufacturing

Info

Publication number: CN112518597A
Application number: CN202011375831.9A
Authority: CN
Inventors: 李金赛
Original assignee: Nanjing Dongjinsai Trading Co ltd
Current assignee: Nanjing Dongjinsai Trading Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-19

Abstract

The invention relates to the technical field of telephone manufacturing and polishing, and discloses a grinding disc convenient to replace and used for telephone manufacturing and polishing. This telephone is made and is polished with mill of being convenient for to change, drive the pivot motion through the fixture block, the pivot drives the arc pole motion, rethread dielectric plate and positive plate, the cooperation of negative plate is used, thereby reach control piezo-resistor's the outage effect, the fixture block rotates, it rotates this moment arc pole to drive the pivot, drive dielectric plate motion, the relative area crescent of positive plate and negative plate this moment, two voltage grow gradually between adding the polar plate, exceed piezo-resistor's operating voltage, the circuit is in the outage state.

Description

Grinding disc convenient to replace for grinding during telephone manufacturing

Technical Field

The invention relates to the technical field of telephone manufacturing and polishing, in particular to a grinding disc convenient to replace for telephone manufacturing and polishing.

Background

The telephone set, a telecommunication device capable of transmitting and receiving sound, has been known as a telephone in europe of the eighteenth century and is used for a microphone formed by connecting wires, the appearance of the telephone set is attributed to alexander gladham bell, and the principle of the early telephone set is as follows: speaking sound is compound vibration in the air, can transmit to the solid, passes through the electric pulse and transmits on electrically conductive metal, along with the continuous development of science and technology present telephone manufacturing technology more and more mature, wherein the telephone manufacturing technology involves polishing the polishing to the telephone shell.

Because the process of polishing divide into and slightly polish and finely polish, traditional grinding device is the abrasive band with different models, just can polish through installing fixed the regulation with the mill, because abrasive band wearing and tearing are very fast under the state of slightly polishing, so need change the abrasive band, under the state of finely polishing, because the requirement difference to polishing needs to change the meticulous abrasive band, because dismantle and change the abrasive band and cause inconvenience to the constructor, and seriously influence work efficiency moreover.

Therefore, we propose a grinding disc for telephone manufacturing grinding which is convenient to replace to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the grinding disc which is convenient to replace and used for grinding the telephone, has the advantages of convenience in replacement and automatic adjustment, and solves the problem that the convenience is brought to constructors due to the fact that abrasive belts are detached and replaced.

(II) technical scheme

In order to achieve the purpose of achieving the advantages of convenient replacement and automatic adjustment, the invention provides the following technical scheme: a grinding disc convenient to replace for grinding during manufacturing of telephones comprises a grinding disc, wherein the middle part of the grinding disc is movably connected with a rotating shaft, the inner wall of the middle part of the grinding disc is fixedly connected with a non-magnetic-conductive plate, the inner wall of the middle part of the grinding disc is movably connected with a telescopic rod, the outer side of the telescopic rod is fixedly connected with an arc supporting plate, the inner wall of the middle part of the grinding disc is movably connected with electrorheological fluid, the inner wall of the middle part of the grinding disc is movably connected with a piston, the inner wall of the middle part of the piston is fixedly connected with a magnetic block, the outer side of the piston is fixedly connected with a conductive post, the inner side of the piston is fixedly connected with a reset spring, the inner wall of the middle part of the grinding disc is fixedly, the inner wall of the middle part of the arc rod is fixedly connected with a dielectric plate.

Preferably, the mill middle part is seted up with the shaft hole and the shaft hole inner wall of pivot looks adaptation and is seted up the draw-in groove, thereby the pivot rotates along the shaft hole inner wall and drives the arc pole motion, the fixture block carries out the joint with the draw-in groove and plays limiting displacement, draw-in groove inner wall fixedly connected with stationary contact, stationary contact and movable contact control lead the break-make electricity state of electrical pillar.

Preferably, the inner wall of the middle part of the rotating shaft is provided with a movable groove matched with the clamping block, the outer side of the rotating shaft is movably connected with a ball, the clamping block moves on the inner wall of the movable groove to play a role in limiting the rotating shaft, and the ball is used for reducing friction between the rotating shaft and the inner wall of the grinding disc.

Preferably, the quantity that has cup jointed rubber membrane and arc fagging in the arc fagging outside is three, grinds the area and laminates with the arc fagging outside, and the rubber membrane plays the effect that prevents to grind the area and skid, increases the frictional force in the inboard and arc fagging outside of grinding the area.

Preferably, the electrorheological fluid is composed of solid particles with high dielectric constant and silicone oil with low dielectric constant, and the electrorheological fluid is converted from liquid state to solid state under the electrified state so as to limit the telescopic rod and increase the stability of the telescopic rod.

Preferably, the size of the electromagnet is smaller than that of the grinding disc, the magnetism of the outer side of the electromagnet is opposite to that of the inner side of the magnetic block, and the magnetic blocks are powered on to generate a magnetic field to be subjected to mutual repulsion acting force to drive the piston to move outwards.

Preferably, the outer side of the positioning spring is fixedly connected with the inner wall of the rotating shaft, the size of the positioning spring is smaller than that of the clamping block, and the positioning spring plays a role in stretching the clamping block.

Preferably, the size of the dielectric plate is larger than that of the positive plate and the negative plate, and the dielectric plate controls the relative area of the positive plate and the negative plate to change the voltage between the two plates, so that the on-off state of the piezoresistor is controlled.

(III) advantageous effects

Compared with the prior art, the invention provides a grinding disc convenient to replace for grinding during telephone manufacturing, which has the following beneficial effects:

1. this telephone is made and is polished with mill of being convenient for to change, drive the pivot motion through the fixture block, the pivot drives the arc pole motion, rethread dielectric plate and positive plate, the cooperation of negative plate is used, thereby reach control piezo-resistor's the outage effect, the fixture block rotates, it rotates this moment arc pole to drive the pivot, drive dielectric plate motion, the relative area crescent of positive plate and negative plate this moment, two voltage grow gradually between adding the polar plate, exceed piezo-resistor's operating voltage, the circuit is in the outage state.

2. This telephone is made and is polished with mill of being convenient for to change, it drives the motion of piston to drive the magnetic path operation magnetic path through the electromagnet, the cooperation of rethread telescopic link and arc vaulting pole is used, thereby reach the effect of being convenient for to change, the electromagnet circular telegram extrudees the piston outwards, the telescopic link moves to the outside under the effect of electrorheological fluids, the mill in the arc fagging outside this moment takes to be propped up, fixture block and draw-in groove joint, movable contact and stationary contact laminating, it changes solid-state into by liquid to lead electrical rheological fluids of electrical conduction, fasten the increase stability to the telescopic link.

Drawings

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

FIG. 2 is a partially enlarged view of the portion A of FIG. 1 according to the present invention;

FIG. 3 is a partially enlarged view of the portion B shown in FIG. 1 according to the present invention;

FIG. 4 is a schematic view of a partially enlarged structure of the portion C in FIG. 1 according to the present invention.

In the figure: 1. a grinding disc; 2. a rotating shaft; 3. arc supporting plates; 4. a non-magnetic conductive plate; 5. a telescopic rod; 6. electrorheological fluid; 7. a piston; 8. an electromagnet; 9. a return spring; 10. a conductive post; 11. a positioning spring; 12. a clamping block; 13. a movable contact; 14. a negative plate; 15. a dielectric plate; 16. a positive plate; 17. an arc rod; 18. a voltage dependent resistor; 19. a magnetic block.

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.

Referring to fig. 1-4, a grinding disc convenient for replacement for telephone manufacturing and grinding comprises a grinding disc 1, wherein the middle part of the grinding disc 1 is provided with a shaft hole matched with a rotating shaft 2, the inner wall of the shaft hole is provided with a clamping groove, the rotating shaft 2 rotates along the inner wall of the shaft hole to drive an arc rod 17 to move, a clamping block 12 is clamped with the clamping groove to play a limiting role, the inner wall of the clamping groove is fixedly connected with a static contact, the static contact and a movable contact 13 control the on-off state of a conductive post 10, the middle part of the grinding disc 1 is movably connected with the rotating shaft 2, the inner wall of the middle part of the rotating shaft 2 is provided with a movable groove matched with the clamping block 12, the outer side of the rotating shaft 2 is movably connected with a ball, the clamping block 12 moves on the inner wall of the movable groove to play a limiting role on the rotating shaft, the outer side of the telescopic rod 5 is fixedly connected with an arc supporting plate 3, the outer side of the arc supporting plate 3 is sleeved with a rubber film, the number of the arc supporting plates 3 is three, a grinding belt is attached to the outer side of the arc supporting plate 3, the rubber film plays a role in preventing the grinding belt from slipping, the friction force between the inner side of the grinding belt and the outer side of the arc supporting plate 3 is increased, the inner wall of the middle part of the grinding disc 1 is movably connected with electrorheological fluid 6, the electrorheological fluid 6 is composed of solid particles with high dielectric constant and silicone oil with low dielectric constant, and the electrorheological fluid 6 is changed from liquid state to solid state under the electrified state so as to limit the;

a piston 7 is movably connected to the inner wall of the middle of the grinding disc 1, a magnetic block 19 is fixedly connected to the inner wall of the middle of the piston 7, a conductive column 10 is fixedly connected to the outer side of the piston 7, a return spring 9 is fixedly connected to the inner side of the piston 7, an electromagnet 8 is fixedly connected to the inner wall of the middle of the grinding disc 1, the size of the electromagnet 8 is smaller than that of the grinding disc 1, the magnetism of the outer side of the electromagnet 8 is opposite to that of the inner side of the magnetic block 19, the electromagnet 8 is electrified to generate a magnetic field, the magnetic block 19 is subjected to mutual repulsion acting force to drive the piston;

positioning spring 11 outside and 2 inner wall fixed connection of pivot and positioning spring 11's size are less than fixture block 12's size, positioning spring 11 plays the tensile effect to fixture block 12, fixture block 12 outside fixedly connected with

movable contact

13, 1 middle part inner wall fixedly connected with negative plate 14 of mill, 1 middle part inner wall fixedly connected with positive plate 16 of mill, 1 middle part inner wall fixedly connected with piezo-resistor 18 of mill, 2 outside fixedly connected with arc bars 17 of pivot, arc bars 17 middle part inner wall fixedly connected with dielectric plate 15, dielectric plate 15's size is greater than positive plate 16, negative plate 14's size, dielectric plate 15 plays the relative area of control positive plate 16 and negative plate 14 and changes the voltage between the two polar plates, thereby reach the on-off state of control piezo-resistor 18.

The working principle is as follows: when the grinding disc 1 works normally, the fixture block 12 electrically attaches the moving contact 13 to the stationary contact on the inner wall of the grinding disc 1 under the action of the positioning spring 11, the conductive post 10 is powered on, the electrorheological fluid 6 is in a solid state, meanwhile, under the action of the electromagnet 8 and the magnetic block 19, the telescopic rod 5 is extruded outwards to drive the arc supporting plate 3 to tighten the polishing belt so that the polishing belt does not slide, when the grinding belt at the outer side of the grinding disc 1 needs to be replaced, the fixture block 12 is compressed towards the inner wall of the rotating shaft 2 through external equipment, so that the fixture block is separated from the clamping groove at the inner wall of the grinding disc 1, when the clamping block 12 is separated from the clamping groove, the movable contact 13 is separated from the fixed contact on the inner wall of the grinding disc 1, the conductive column 10 is powered off, at the moment, the electrorheological fluid 6 is changed from a solid state to a liquid state, the clamping block 12 is rotated, the rotating shaft 2 is driven to rotate, at the moment, the arc rod 17 is rotated, and the dielectric plate 15 is driven to move;

at the moment, the relative area of the positive plate 16 and the negative plate 14 is gradually increased, the voltage between the two electrode plates is gradually increased and exceeds the working voltage of the piezoresistor 18, the electromagnet 8 is powered off, the piston 7 is contracted inwards under the action of the reset spring 9 to drive the telescopic rod 5 to move so as to contract the arc supporting plate 3, the grinding belt is taken down for replacement, the replaced grinding belt is paved with the arc supporting plate 3, the fixture block 12 is rotated, the fixture block 12 drives the rotating shaft 2 to rotate along the inner wall of the grinding disc 1, the arc rod 17 moves inwards at the moment, the dielectric plate 15 also moves inwards at the moment, the relative area of the positive plate 16 and the negative plate 14 is gradually reduced, the piezoresistor 18 reaches the working voltage, the electromagnet 8 is electrified to extrude the piston 7 outwards, the telescopic rod 5 moves outwards under the action of the electrorheological fluid 6, the grinding belt outside the arc supporting plate 3 is, the clamping block 12 is clamped with the clamping groove, the movable contact 13 is attached to the fixed contact, the conductive column 10 is electrified, the electrorheological fluid 6 is changed from a liquid state to a solid state, and the telescopic rod 5 is fastened to increase stability.

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. The utility model provides a telephone is made and is polished with mill convenient to change, includes mill (1), its characterized in that: the grinding disc comprises a grinding disc (1), a rotating shaft (2) is movably connected to the middle of the grinding disc (1), a non-magnetic-conductive plate (4) is fixedly connected to the inner wall of the middle of the grinding disc (1), a telescopic rod (5) is movably connected to the inner wall of the middle of the grinding disc (1), an arc supporting plate (3) is fixedly connected to the outer side of the telescopic rod (5), electrorheological fluid (6) is movably connected to the inner wall of the middle of the grinding disc (1), a piston (7) is movably connected to the inner wall of the middle of the grinding disc (1), a magnetic block (19) is fixedly connected to the inner wall of the middle of the piston (7), a conductive post (10) is fixedly connected to the outer side of the piston (7), a reset spring (9) is fixedly connected to the inner side of the piston (7), an electromagnet (8, the grinding disc (1) middle inner wall is fixedly connected with a negative plate (14), the grinding disc (1) middle inner wall is fixedly connected with a positive plate (16), the grinding disc (1) middle inner wall is fixedly connected with a piezoresistor (18), the rotating shaft (2) outer side is fixedly connected with an arc rod (17), and the arc rod (17) middle inner wall is fixedly connected with a dielectric plate (15).

2. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the middle part of the grinding disc (1) is provided with a shaft hole matched with the rotating shaft (2) and the inner wall of the shaft hole is provided with a clamping groove.

3. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the inner wall of the middle part of the rotating shaft (2) is provided with a movable groove matched with the clamping block (12), and the outer side of the rotating shaft (2) is movably connected with a ball.

4. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the outer side of each arc supporting plate (3) is sleeved with a rubber film, and the number of the arc supporting plates (3) is three.

5. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the electrorheological fluid (6) is composed of solid particles with high dielectric constant and silicone oil with low dielectric constant.

6. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the size of the electromagnet (8) is smaller than that of the grinding disc (1), and the magnetism of the outer side of the electromagnet (8) is opposite to that of the inner side of the magnetic block (19).

7. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the outer side of the positioning spring (11) is fixedly connected with the inner wall of the rotating shaft (2), and the size of the positioning spring (11) is smaller than that of the clamping block (12).

8. The telephone grinding disc convenient to replace for telephone manufacturing according to claim 1, wherein: the size of the dielectric plate (15) is larger than that of the positive plate (16) and the negative plate (14).