CN112139996A

CN112139996A - Device for automatically replacing angle grinder abrasive sheet

Info

Publication number: CN112139996A
Application number: CN202011056234.XA
Authority: CN
Inventors: 刘佘飞
Original assignee: Wuyi County Stone Plating Machinery Equipment Co Ltd
Current assignee: Wuyi County Stone Plating Machinery Equipment Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-29

Abstract

The invention discloses a device for automatically replacing angle grinder sand sheets, which comprises a machine body, wherein a loosening mechanism is arranged in the machine body, a driving mechanism is arranged in the machine body, a sand changing mechanism is also arranged in the machine body, the sand changing mechanism comprises a working cavity arranged in the machine body, the left and right cavity walls of the working cavity are internally provided with two pressure plate box cavities with inward openings, the invention has simple structure and convenient operation, the device is put on the device at the angle mill that the staff will need to change when normal use, then the device is fixed the main shaft of angle mill, later go on again to loosening of nut, take out the abrasive disc on the angle mill originally, later with new abrasive disc automatic change again, realized the automation of changing the abrasive disc, the efficiency that has improved the staff and changed the abrasive disc has also alleviateed staff's intensity of labour simultaneously, also indirect assurance the normal life of angle mill main shaft.

Description

Device for automatically replacing angle grinder abrasive sheet

Technical Field

The invention relates to the field related to machine grinding devices, in particular to a device for automatically replacing angle grinder abrasive sheets.

Background

The angle grinder is used for many purposes, and woodworkers, bricklayers and electric welders can cut and grind small metal parts and can also be used for processing stones.

At the present stage, the replacement to angle mill emery piece is usually that people utilize special uninstallation spanner will install the nut on the angle mill and lift off earlier, but, just can not dismantle easily after the breakage appears in the emery piece, can only utilize the drill bit to strike and chisel out through the professional, but has certain influence to the main shaft of angle mill, also can harm the nut of angle mill simultaneously.

Disclosure of Invention

The invention aims to solve the technical problem of providing a device for automatically replacing angle grinder sand sheets, solves the problem that angle grinder sand sheets are difficult to replace by workers, and increases the functions of automatically replacing the angle grinder sand sheets and the like.

The invention relates to a device for automatically replacing angle grinder abrasive sheets, which comprises a machine body, wherein a release mechanism is arranged in the machine body, a driving mechanism is arranged in the machine body, a sand replacing mechanism is also arranged in the machine body, the sand replacing mechanism comprises a working cavity arranged in the machine body, two pressing plate box cavities with inward openings are arranged in the left cavity wall and the right cavity wall of the working cavity, a pressing plate box is arranged in each pressing plate box cavity, the upper end surface of each pressing plate box is fixedly connected with a pressing plate displacement spring with the other end fixedly connected with the upper cavity wall of the pressing plate box cavity, a pressing plate cavity is arranged in each pressing plate box, a pressing plate is arranged in each pressing plate cavity, the left end surface of each pressing plate is fixedly connected with a pressing plate spring with the other end fixedly connected with the left cavity wall of the pressing plate cavity, the left end surface of each pressing plate cavity is fixedly connected with a pressing plate iron sheet, the left, the right side the last end face fixedly connected with iron chain of clamp plate case, be equipped with the clamp chamber that the opening is forward in the cavity wall behind the working chamber, be equipped with the clamp piece chamber in the cavity wall behind the clamp chamber, be equipped with the clamp piece in the clamp piece chamber, the terminal surface fixedly connected with rack under the clamp piece, the last terminal surface fixedly connected with other end of clamp piece and the clamp piece spring of clamp piece chamber upper cavity wall fixed connection, the last terminal surface fixedly connected with of clamp piece the other end of plastics rope, it does not wear the thing clamp control piece and is fixed with the clip to be equipped with clamp control piece front end fixedly connected with in the clamp piece, clamp control piece rear end face fixedly connected with clamp iron sheet, clamp piece rear inner wall fixedly connected with clip electro-magnet, clamp control piece rear end face fixedly connected with other end and clamp piece rear inner wall fixed connection's straining spring, be equipped with the chamber is placed to, the abrasive sheet placing cavity is hinged to a cover, a cushion pad is fixedly connected to the lower cavity wall of the abrasive sheet placing cavity, a push block cavity with a backward opening is arranged in the front cavity wall of the abrasive sheet placing cavity, a push block is arranged in the push block cavity, the other end of the front end face of the push block is fixedly connected with a push block spring fixedly connected with the front cavity wall of the push block cavity, a rope is fixedly connected to the front end face of the push block, a driven pulley shaft is rotatably connected to the left cavity wall and the right cavity wall of the clamp cavity, the driven pulley shaft is fixedly connected with a pinion meshed with the rack, a rope winding wheel and a driven pulley are fixedly connected with the driven pulley shaft, and the other end of the rope is wound on the rope winding wheel.

Further, the loosening mechanism comprises a rotary turntable arranged in the working cavity, a fixed rod is fixedly connected to the upper end face of the rotary turntable, a rotary ring groove is arranged in the rotary turntable, two rotary sliding blocks are connected in the rotary ring groove in a sliding manner, a driven small belt wheel cavity is arranged in the lower cavity wall of the working cavity, a telescopic fixed rod is fixedly connected to the lower end face of the rotary sliding block at the left side and fixedly connected to the other end of the telescopic fixed rod and the lower cavity wall of the driven small belt wheel cavity, a rotary spring is fixedly connected to the lower end face of the rotary sliding block at the right side and fixedly connected to the lower cavity wall of the driven small belt wheel cavity, a hemp rope is fixedly connected to the lower end face of the rotary slider at the right side, a driven small belt wheel shaft is fixedly connected to the lower end face of the rotary turntable, a driven small belt wheel, the rear end face of the auxiliary block is fixedly connected with an auxiliary magnet, the rear end face of the auxiliary block is fixedly connected with an auxiliary spring, the other end of the auxiliary spring is fixedly connected with the rear cavity wall of the auxiliary cavity, the rear end face of the auxiliary block is also fixedly connected with a leather rope, the rear cavity wall of the auxiliary cavity is fixedly connected with an auxiliary electromagnet, the front end face of the auxiliary block is fixedly connected with an auxiliary rope, two clamping cavities with inward openings are further arranged in the left cavity wall and the right cavity wall of the clamping cavity, clamping blocks are arranged in the clamping cavities, the left end face of each clamping block is fixedly connected with a clamping spring, the other end of each clamping spring is fixedly connected with the left cavity wall of the clamping cavity, the left end face of each clamping block on the left side is fixedly connected with a thick rope and a short rope, the right end face of each clamping block on the right side is fixedly connected with a thin rope and a long rope, the terminal surface fixedly connected with other end under the button piece with button cavity lower chamber wall fixed connection's button spring, still be equipped with the briquetting chamber in the organism, the briquetting intracavity is equipped with the briquetting, terminal surface fixedly connected with other end under the briquetting with briquetting cavity lower chamber wall fixed connection's compression spring, terminal surface fixedly connected with under the briquetting the other end of long rope with the other end of short rope.

Further, the driving mechanism comprises a driving cavity arranged in the machine body, the right cavity wall of the driving cavity is rotatably connected with an auxiliary shaft, the auxiliary shaft is fixedly connected with a driving belt wheel connected with the driven belt wheel through a wide belt, the auxiliary shaft is also fixedly connected with a driven bevel gear, the upper cavity wall of the driving cavity is rotatably connected with a driving bevel gear shaft, the driving bevel gear shaft is fixedly connected with a driving bevel gear, the driving bevel gear shaft is connected with a movable rotary gear through a spline, a movable ring groove is arranged in the movable rotary gear, a movable rotary block is slidably connected in the movable ring groove, the upper end face of the movable rotary block is fixedly connected with the other end of the leather rope, the upper end face of the movable rotary block is fixedly connected with a movable spring, the other end of the movable rotary block is fixedly connected with the upper cavity wall of the driving cavity, and the lower cavity, the positive and negative motor is in power connection with a driving small belt wheel shaft, the driving small belt wheel shaft is fixedly connected with a power gear, a cylindrical gear and a driving small belt wheel connected with the driven small belt wheel through a belt, the driving small belt wheel shaft is also fixedly connected with an intermediate gear, the lower cavity wall of the driving cavity is rotatably connected with a fixed shaft, the fixed shaft is fixedly connected with a double belt wheel, the other end of the chain and the other end of the iron chain are wound on the double belt wheel, the fixed shaft is connected with a rotating gear through a spline, a rotating ring groove is arranged in the rotating gear, two rotating blocks are slidably connected in the rotating ring groove, the lower end face of each rotating block is fixedly connected with the other end and a rotating spring is fixedly connected with the lower cavity wall of the driving cavity, the lower end face of each rotating gear is fixedly connected with the other end, the lower end surface of the turning block at the rear side is fixedly connected with a pull rope, the lower end surface of the turning block at the front side is fixedly connected with the other end of the auxiliary rope, the upper wall of the driving cavity is rotatably connected with a cylindrical shaft, the cylindrical shaft is fixedly connected with a cylindrical torsion spring, the other end of the cylindrical torsion spring is fixedly connected with the upper wall of the driving cavity, the cylindrical shaft is fixedly connected with a loosening rope wheel, the other end of the hemp rope is wound on the loosening rope wheel, the cylindrical shaft is connected with a cylindrical rotating gear through a spline, a cylindrical ring groove is arranged in the cylindrical rotating gear, a cylindrical block is connected in the cylindrical ring groove in a sliding way, the upper end surface of the cylindrical block is fixedly connected with a cylindrical spring of which the other end is fixedly connected with the upper cavity wall of the driving cavity, the upper end face of the cylindrical block is fixedly connected with the other end of the pull rope, the upper cavity wall of the driving cavity is fixedly connected with an electromagnet, and a waste cavity is further formed in the machine body.

Further, button spring elasticity is greater than clamping spring, compression spring elasticity is greater than clamping spring, auxiliary spring elasticity is greater than removal spring, auxiliary spring elasticity is greater than rotating spring, clamp plate displacement spring elasticity is greater than the clamp spring, positive and negative motor corotation or reversal all can make the chain with the iron chain is in the state of relaxing, the rope is the stretch cord, the plastics rope is the stretch cord.

The invention has the beneficial effects that: the angle grinder is simple in structure and convenient and fast to operate, when the angle grinder is in normal use, a worker places an angle grinder to be replaced on the device, then the device fixes the main shaft of the angle grinder, then the nut is loosened, the original sand sheet on the angle grinder is taken out, and then a new sand sheet is automatically replaced, so that the automation of replacing the sand sheet is realized, the efficiency of replacing the sand sheet by the worker is improved, the labor intensity of the worker is reduced, and the normal service life of the main shaft of the angle grinder is indirectly ensured.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a partial structure diagram of the left side view of the gear and rack engagement in FIG. 2 according to the embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is an enlarged view of the structure at C in FIG. 2 according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of the structure at D in FIG. 2 according to an embodiment of the present invention;

fig. 7 is an enlarged schematic view of the structure at E in fig. 2 according to the embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The device for automatically replacing angle grinder abrasive sheets comprises a machine body 10, a loosening mechanism 110 is arranged in the machine body 10, a driving mechanism 111 is arranged in the machine body 10, a sand replacing mechanism 112 is further arranged in the machine body 10, the sand replacing mechanism 112 comprises a working chamber 48 arranged in the machine body 10, two platen box cavities 83 with inward openings are arranged in the left cavity wall and the right cavity wall of the working chamber 48, a platen box 82 is arranged in the platen box cavity 83, the upper end face of the platen box 82 is fixedly connected with a platen displacement spring 78 with the other end fixedly connected with the upper cavity wall of the platen box cavity 83, a platen cavity 75 is arranged in the platen box 82, a platen 73 is arranged in the platen cavity 75, the left end face of the platen 73 is fixedly connected with the other end fixedly connected with the platen spring 74 fixedly connected with the left cavity wall of the platen cavity 75, and a platen iron sheet 77 is fixedly connected with the left end face of the platen 73, the left cavity wall of the pressure plate cavity 75 is fixedly connected with a pressure plate electromagnet 76, the left side is fixedly connected with a chain 79 and a plastic rope 44 on the upper end face of the pressure plate box 82, the right side is fixedly connected with an iron chain 81 on the upper end face of the pressure plate box 82, a cavity 46 with a forward opening is arranged in the cavity wall behind the working cavity 48, a clamp block cavity 43 is arranged in the cavity wall behind the clamp cavity 46, a clamp block 41 is arranged in the clamp block cavity 43, a rack 80 is fixedly connected with the lower end face of the clamp block 41, the upper end face of the clamp block 41 is fixedly connected with the other end and a clamp block spring 45 fixedly connected with the upper cavity wall of the clamp block cavity 43, the upper end face of the clamp block 41 is fixedly connected with the other end of the plastic rope 44, a clamp control block 42 without a clamp control block 42 is arranged in the clamp block 41, a clamp iron sheet 39 is fixedly connected with the rear end, the back inner wall of the clamp block 41 is fixedly connected with a clamp electromagnet 40, the back end face of the clamp control block 42 is fixedly connected with a tensioning spring 38 of which the other end is fixedly connected with the back inner wall of the clamp block 41, the front cavity wall of the working cavity 48 is internally provided with a sand sheet placing cavity 50, the sand sheet placing cavity 50 is internally articulated with a cover 49 with the machine body 10, the lower cavity wall of the sand sheet placing cavity 50 is fixedly connected with a cushion 55, the front cavity wall of the sand sheet placing cavity 50 is internally provided with a push block cavity 52 with a backward opening, the push block cavity 52 is internally provided with a push block 51, the front end face of the push block 51 is fixedly connected with a push block spring 53 of which the other end is fixedly connected with the front cavity wall of the push block cavity 52, the front end face of the push block 51 is fixedly connected with a rope 54, the left cavity wall and the right cavity wall of the clamp cavity 46 are rotatably connected with, the driven pulley shaft 69 is fixedly connected with a rope winding wheel 66 and a driven pulley 64, and the other end of the rope 54 is wound on the rope winding wheel 66.

Beneficially, the loosening mechanism 110 includes a rotary turntable 33 located in the working chamber 48, a fixing rod 34 is fixedly connected to the upper end face of the rotary turntable 33, a rotary ring groove 32 is arranged in the rotary turntable 33, two rotary sliders 30 are slidably connected in the rotary ring groove 32, a driven small pulley chamber 31 is arranged in the lower chamber wall of the working chamber 48, a telescopic fixing rod 29 is fixedly connected to the lower end face of the rotary slider 30 on the left side and fixedly connected to the lower chamber wall of the driven small pulley chamber 31, a rotary spring 26 is fixedly connected to the lower end face of the rotary slider 30 on the right side and fixedly connected to the lower chamber wall of the driven small pulley chamber 31 on the other side, a hemp rope 25 is fixedly connected to the lower end face of the rotary slider 30 on the right side, a driven small pulley shaft 28 is fixedly connected to the lower end face of the rotary turntable 33, and a driven small pulley shaft 28 is, an auxiliary cavity 56 is arranged in the machine body 10, an auxiliary block 58 is arranged in the auxiliary cavity 56, an auxiliary magnet 37 is fixedly connected to the rear end face of the auxiliary block 58, an auxiliary spring 59 is fixedly connected to the rear end face of the auxiliary block 58, the other end of the auxiliary block is fixedly connected to the rear cavity wall of the auxiliary cavity 56, a leather rope 35 is also fixedly connected to the rear end face of the auxiliary block 58, an auxiliary electromagnet 36 is fixedly connected to the rear cavity wall of the auxiliary cavity 56, an auxiliary rope 57 is fixedly connected to the front end face of the auxiliary block 58, two clamping cavities 17 with inward openings are further arranged in the left and right cavity walls of the clamping cavity 46, a clamping block 65 is arranged in the clamping cavity 17, the left end face of the clamping block 65 is fixedly connected to a clamping spring 18 with the other end of the clamping cavity 17 and the left cavity wall of the clamping cavity 18, the left end face of the clamping block 65 is fixedly connected to a thick rope 13 and a, be equipped with button cavity 15 in the organism 10, be equipped with button block 14 in the

button cavity

15, 14 right-hand member face fixedly connected with of button block the other end of thick rope 13 with the other end of string 16, the terminal surface fixedly connected with other end under the button block 14 with button cavity 15 time chamber wall fixed connection's button spring 12, still be equipped with briquetting chamber 24 in the organism 10, be equipped with briquetting 22 in the briquetting chamber 24, terminal surface fixedly connected with other end under the briquetting 22 with 24 time chamber wall fixed connection's compression spring 23 in briquetting chamber, terminal surface fixedly connected with under the briquetting 22 the other end of long rope 21 with the other end of short rope 20.

Beneficially, the driving mechanism 111 includes a driving cavity 60 disposed in the machine body 10, an auxiliary shaft 61 is rotatably connected to a right cavity wall of the driving cavity 60, the auxiliary shaft 61 is fixedly connected to a driving pulley 62 connected to the driven pulley 64 via a wide belt 63, the auxiliary shaft 61 is further fixedly connected to a driven bevel gear 72, a driving bevel gear shaft 70 is rotatably connected to an upper cavity wall of the driving cavity 60, the driving bevel gear shaft 70 is fixedly connected to a driving bevel gear 71, the driving bevel gear shaft 70 is connected to a movable rotating gear 108 via a spline, a movable ring groove 107 is disposed in the movable rotating gear 108, a movable rotating block 109 is slidably connected to the movable ring groove 107, the upper end of the movable rotating block 109 is fixedly connected to the other end of the leather rope 35, the upper end of the movable rotating block 109 is fixedly connected to a movable spring 106, the other end of which is fixedly connected to the upper cavity wall of the driving, the driving cavity 60 is fixedly connected with a positive and negative motor 92 on the lower cavity wall, the positive and negative motor 92 is connected with a driving small belt wheel shaft 90, the driving small belt wheel shaft 90 is fixedly connected with a power gear 91, a cylindrical gear 88 and a driving small belt wheel 89 connected with the driven small belt wheel 27 through a belt 67, the driving small belt wheel shaft 90 is also fixedly connected with an intermediate gear 104, the driving cavity 60 is rotatably connected with a fixed shaft 84 on the lower cavity wall, the fixed shaft 84 is fixedly connected with a double belt wheel 86, the other end of the chain 79 and the other end of the iron chain 81 are wound on the double belt wheel 86, the fixed shaft 84 is connected with a rotating gear 93 through a spline, a rotating ring groove 85 is arranged in the rotating gear 93, two rotating blocks 95 are slidably connected in the rotating ring groove 85, the other end face of the rotating block 95 is fixedly connected with the other end and a rotating spring 94 is fixedly connected with, the lower end face of the rotating gear 93 is fixedly connected with the other end and the lower cavity wall of the driving cavity 60 is fixedly connected with a rotating torsion spring 96, the lower end face of the rotating block 95 is fixedly connected with a pull rope 19 at the rear side, the lower end face of the rotating block 95 is fixedly connected with the other end of the auxiliary rope 57 at the front side, the upper cavity wall of the driving cavity 60 is rotatably connected with a cylindrical shaft 98, the cylindrical shaft 98 is fixedly connected with a cylindrical torsion spring 99, the other end of which is fixedly connected with the upper cavity wall of the driving cavity 60, the cylindrical shaft 98 is fixedly connected with a unwinding rope wheel 97, the other end of the hemp rope 25 is wound on the unwinding rope wheel 97, the cylindrical shaft 98 is connected with a cylindrical rotating gear 105 through a spline, a cylindrical ring groove 103 is arranged in the cylindrical rotating gear 105, a cylindrical block 102 is slidably connected in the cylindrical ring groove 103, and the upper end face of the cylindrical block 102, the upper end face of the cylindrical block 102 is fixedly connected with the other end of the pull rope 19, the upper cavity wall of the driving cavity 60 is fixedly connected with an electromagnet 101, and a waste cavity 11 is further arranged in the machine body 10.

Advantageously, the button spring 12 has a greater spring force than the clamping spring 18, the compression spring 23 has a greater spring force than the clamping spring 18, the auxiliary spring 59 has a greater spring force than the moving spring 106, the auxiliary spring 59 has a greater spring force than the rotating spring 94, the pressing plate displacement spring 78 has a greater spring force than the clamping block spring 45, and the forward and reverse rotation of the motor 92 causes the chain 79 and the iron chain 81 to be in a relaxed state, the cord 54 is a bungee cord, and the plastic cord 44 is a bungee cord.

Sequence of mechanical actions of the whole device: the pressing plate displacement spring 78 is in a compression state, the pressing plate electromagnet 76 and the pressing plate iron sheet 77 are in an attraction state, the pressing plate spring 74 is in a compression state, the rotating spring 94 is in a compression state, the cylindrical rotating gear 105 and the intermediate gear 104 are in a meshing state, the rotating spring 26 is in a compression state, the clamping spring 18 is in a compression state, and the pressing plate iron sheet 77 and the pressing plate electromagnet 76 are in an attraction state.

1: firstly, the angle grinder is placed in the device, the main shaft part of the angle grinder is placed in the working cavity 48, at the moment, due to the weight of the angle grinder, the pressing block 22 is pressed downwards, the short rope 20 and the long rope 21 are loosened, the clamping block 65 moves inwards, the main shaft of the angle grinder is fixed, and looseness caused by nut disassembly is avoided, at the moment, the forward and reverse rotation motor 92 rotates to drive the driving small belt wheel shaft 90 to rotate, the driving small belt wheel 91, the driving small belt wheel 89, the cylindrical gear 88 and the intermediate gear 104 rotate, the intermediate gear 104 rotates to drive the cylindrical rotating gear 105 to rotate, so as to drive the unwinding rope wheel 97 to rotate to loosen the hemp rope 25, so that the rotating turntable 33 moves upwards, at the same time, the driving small belt wheel 89 rotates to rotate the driven small belt wheel 27, further, the rotating turntable 33 rotates while moving upwards, when the main shaft part moves to the nut, the nut is moved upwards continuously and loosened, so that the nut falls on the rotary turntable 33, when the nut is completely loosened, the electromagnet 101 is electrified, so that the cylindrical rotary gear 105 is disengaged from the intermediate gear 104, the loosened hemp rope 25 is tightened again under the action of the cylindrical torsion spring 99, so that the rotary turntable 33 moves downwards, meanwhile, the nut is driven to rotate downwards, the cylindrical rotary gear 105 moves upwards and releases the pull rope 19, so that the rotary gear 93 moves upwards and is meshed with the power gear 91, the power gear 91 rotates to drive the rotary gear 93 to rotate, so that the fixed shaft 84 is driven to rotate, so that the double rope pulley 86 is driven to rotate, so that the iron chain 81 and the lock chain 79 are in a loosening state, meanwhile, the pressing plate electromagnet 76 is powered off, so that the pressing plate 73 moves inwards and simultaneously the two pressing plate boxes 82 move downwards, so that the abrasive sheets on the original angle grinder move downwards, the sand sheet falls on the rotary turntable 33, and the waste sand sheet falls into the waste cavity 11 under the action of the fixed rod 34, so that the old sand sheet is detached;

2: then the auxiliary electromagnet 36 is electrified, so that the auxiliary electromagnet 36 is attracted with the auxiliary magnet 37, so that the auxiliary block 58 moves backwards, so that the auxiliary rope 57 is tensioned and the leather rope 35 is loosened, the auxiliary rope 57 is tensioned so that the rotating gear 93 moves downwards again to be disengaged from the power gear 91, under the action of the rotating torsion spring 96, the chain 79 and the iron chain 81 are tensioned so that the platen box 82 moves upwards to reset, the leather rope 35 is loosened c so that the moving rotating gear 108 moves downwards, so that the moving rotating gear 108 is engaged with the cylindrical gear 88, the cylindrical gear 88 rotates so that the moving rotating gear 108 rotates, so that the driving bevel gear shaft 70 is driven to rotate, so that the driving bevel gear 71 is driven to rotate, so that the driven bevel gear 72 is driven to rotate, so that the auxiliary shaft 61 is driven to rotate, so that the driving pulley 62 is driven to rotate, so that the driven pulley 64 is driven to rotate, thereby driving the driven pulley shaft 69 to rotate, thereby driving the pulley winding wheel 66 to rotate, thereby driving the pinion 68 to rotate, the pulley winding wheel 66 rotates, thereby tensioning the rope 54, thereby enabling the pushing block 51 to move forwards, simultaneously, the pinion 68 rotates, thereby enabling the rack 80 to move forwards, further enabling the clamp block 41 to move forwards, when the clamp 47 moves to the upper part of a new sand sheet in the sand sheet placing cavity 50, at the moment, the clamp electromagnet 40 is electrified, thereby enabling the clamp control block 42 to move backwards, thereby enabling the clamp 47 to be in a clamping state, further enabling the new sand sheet to be taken out, at the moment, the clamp electromagnet 76 is electrified again, simultaneously, the forward and reverse motor 92 rotates reversely, thereby driving the small pulley shaft 90 to rotate, thereby driving the power gear 91, the driving small pulley 89, the cylindrical gear 88 and the intermediate gear 104 to rotate, thereby rotating the cylindrical gear 88, thereby enabling the moving rotating gear 108 to rotate, thereby driving the driving bevel gear 71 to rotate, thereby driving the driven bevel gear 72 to rotate, thereby driving the auxiliary shaft 61 to rotate, thereby driving the driving pulley 62 to rotate, thereby driving the driven pulley shaft 64 to rotate, thereby driving the driven pulley shaft 69 to rotate, thereby driving the rope reel 66 to rotate, thereby driving the pinion 68 to rotate, thereby moving the rack 80 backward, simultaneously rotating the rope reel 66 to loosen the rope 54, thereby moving the push block 51 backward, thereby pushing a new sand sheet into the position where the previous new sand sheet is located, thereby preparing for next sand sheet replacement, when the clamp block 41 moves to the rear cavity wall of the clamp block cavity 43, at this time, the auxiliary electromagnet 36 is powered off, thereby loosening the auxiliary rope 57 again, simultaneously tensioning the leather rope 35, thereby moving the moving rotary gear 108 to disengage the moving rotary gear 108 from the cylindrical gear 88, loosening the auxiliary rope 57 to engage the rotary gear 93 with the power gear 91, the power gear 91 rotates to drive the rotating gear 93 to rotate, so as to drive the fixed shaft 84 to rotate, so as to drive the double rope pulley 86 to rotate, so as to loosen the chain 79 and the iron chain 81 again, so as to move the platen case 82 downwards, and simultaneously to tension the plastic rope 44, so as to move the clamp block 41 upwards, so as to move the clamp 47 upwards, so as to install a new sand piece clamped on the clamp 47 on the angle grinder main shaft again, at the moment, the electromagnet 101 is powered off, so as to tighten the pull rope 19 again, so as to engage the cylindrical rotating gear 105 and the intermediate gear 104 again, so as to loosen the unwinding rope pulley 97 again, so as to move the rotating turntable 33 upwards again and rotate to tighten the nut again, at the same time, the rotating gear 93 is disengaged from the power gear 91, and the clamp electromagnet 40 is powered off, so as to loosen the clamp 47, and under the action of the rotating torsion spring 96, the chain 79 and the iron chain 81 are tightened again, so as to, meanwhile, the clamp block 41 moves downwards to be in an initial state, so that the nut is screwed up, and a new sand sheet is installed;

3: positive and negative motor 92 closes, electro-magnet 101 is switched on again simultaneously, make stay cord 19 relax simultaneously, thereby make the rotatory carousel 33 move down under the effect of cylindrical torsion spring 99, when rotatory carousel 33 moves down to initial position, electro-magnet 101 cuts off the power supply, the staff presses button block 14, thereby make thick rope 13 and thin rope 16 taut, thereby make to press from both sides tight piece 65 and remove the restriction to the angle mill main shaft, take out the angle mill, thereby make briquetting 22 upwards reset and pop out, make short rope 20 and long rope 21 pulled, make to press from both sides tight piece 65 and be in initial condition, accomplish the change to the angle mill abrasive disc, accomplish work.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a be used for automatic change angle mill abrasive disc device, includes the organism, its characterized in that: the sand-changing machine is characterized in that a loosening mechanism is arranged in the machine body, a driving mechanism is arranged in the machine body, a sand-changing mechanism is further arranged in the machine body and comprises a working cavity arranged in the machine body, two pressing plate box cavities with inward openings are arranged in the left cavity wall and the right cavity wall of the working cavity, a pressing plate box is arranged in the pressing plate box cavity, the upper end surface of the pressing plate box is fixedly connected with a pressing plate displacement spring of which the other end is fixedly connected with the upper cavity wall of the pressing plate box cavity, a pressing plate cavity is arranged in the pressing plate box, a pressing plate is arranged in the pressing plate cavity, the left end surface of the pressing plate is fixedly connected with a pressing plate spring of which the other end is fixedly connected with the left cavity wall of the pressing plate cavity, the left end surface of the pressing plate is fixedly connected with a pressing plate iron sheet, the left cavity wall of the pressing plate cavity, the clamp cavity with a forward opening is arranged in the wall of the rear cavity of the working cavity, the clamp cavity is arranged in the wall of the rear cavity of the clamp cavity, the clamp block is arranged in the clamp cavity, the lower end face of the clamp block is fixedly connected with a rack, the upper end face of the clamp block is fixedly connected with the other end of the clamp block spring fixedly connected with the upper wall of the clamp cavity, the upper end face of the clamp block is fixedly connected with the other end of the plastic rope, the clamp is arranged in the clamp block and is not fixedly connected with a clamp at the front end of the clamp control block, the rear end face of the clamp control block is fixedly connected with an iron clamp sheet, the rear inner wall of the clamp block is fixedly connected with an electromagnet, the rear end face of the clamp control block is fixedly connected with a tension spring fixedly connected with the other end of the rear inner wall of the clamp block, a sand sheet placing cavity is, the abrasive sheet placing cavity lower cavity wall fixedly connected with cushion pad, the abrasive sheet placing cavity front cavity wall is provided with a push block cavity with a backward opening, a push block is arranged in the push block cavity, the other end of the front end face fixedly connected with push block is fixedly connected with a push block spring of the front cavity wall of the push block cavity, the front end face fixedly connected with rope is arranged in the push block cavity, the left and right cavity walls of the clamp cavity are rotatably connected with a driven pulley shaft, the driven pulley shaft is fixedly connected with a pinion meshed with the rack, a driven pulley shaft is fixedly connected with a rope winding wheel and a driven pulley, and the other end of the rope is wound on the rope winding wheel.

2. The device for automatically replacing angle grinder sanding sheets of claim 1, wherein: the loosening mechanism comprises a rotary turntable arranged in the working cavity, a fixed rod is fixedly connected to the upper end face of the rotary turntable, a rotary ring groove is arranged in the rotary turntable, two rotary sliders are connected in the rotary ring groove in a sliding manner, a driven small belt wheel cavity is arranged in the lower cavity wall of the working cavity, the lower end face of the rotary slider is fixedly connected with a telescopic fixed rod, the other end of the telescopic fixed rod is fixedly connected with the lower cavity wall of the driven small belt wheel cavity, the lower end face of the rotary slider is fixedly connected with a rotary spring, the other end of the rotary spring is fixedly connected with the lower cavity wall of the driven small belt wheel cavity, the lower end face of the rotary slider is fixedly connected with a hemp rope, the lower end face of the rotary turntable is fixedly connected with a driven small belt wheel shaft, the driven small belt wheel shaft is fixedly connected with, the rear end face of the auxiliary block is fixedly connected with an auxiliary magnet, the rear end face of the auxiliary block is fixedly connected with an auxiliary spring, the other end of the auxiliary spring is fixedly connected with the rear cavity wall of the auxiliary cavity, the rear end face of the auxiliary block is also fixedly connected with a leather rope, the rear cavity wall of the auxiliary cavity is fixedly connected with an auxiliary electromagnet, the front end face of the auxiliary block is fixedly connected with an auxiliary rope, two clamping cavities with inward openings are further arranged in the left cavity wall and the right cavity wall of the clamping cavity, clamping blocks are arranged in the clamping cavities, the left end face of each clamping block is fixedly connected with a clamping spring, the other end of each clamping spring is fixedly connected with the left cavity wall of the clamping cavity, the left end face of each clamping block on the left side is fixedly connected with a thick rope and a short rope, the right end face of each clamping block on the right side is fixedly connected with a thin rope and a long rope, the terminal surface fixedly connected with other end under the button piece with button cavity lower chamber wall fixed connection's button spring, still be equipped with the briquetting chamber in the organism, the briquetting intracavity is equipped with the briquetting, terminal surface fixedly connected with other end under the briquetting with briquetting cavity lower chamber wall fixed connection's compression spring, terminal surface fixedly connected with under the briquetting the other end of long rope with the other end of short rope.

3. The device for automatically replacing angle grinder sanding sheets of claim 1, wherein: the driving mechanism comprises a driving cavity arranged in the machine body, the right cavity wall of the driving cavity is rotatably connected with an auxiliary shaft, the auxiliary shaft is fixedly connected with a driving belt wheel connected with the driven belt wheel through a wide belt, the auxiliary shaft is also fixedly connected with a driven bevel gear, the upper cavity wall of the driving cavity is rotatably connected with a driving bevel gear shaft, the driving bevel gear shaft is fixedly connected with a driving bevel gear, the driving bevel gear shaft is connected with a moving rotating gear through a spline, a moving ring groove is arranged in the moving rotating gear, a moving rotating block is slidably connected in the moving ring groove, the upper end surface of the moving rotating block is fixedly connected with the other end of the leather rope, the upper end surface of the moving rotating block is fixedly connected with a moving spring, the other end of the moving rotating block is fixedly connected with the upper cavity wall of the driving cavity, the lower cavity wall of the driving cavity is fixedly connected with a, the driving small belt wheel shaft is fixedly connected with a power gear, a cylindrical gear and a driving small belt wheel connected with the driven small belt wheel through a belt, the driving small belt wheel shaft is also fixedly connected with an intermediate gear, the lower cavity wall of the driving cavity is rotatably connected with a fixed shaft, the fixed shaft is fixedly connected with a double rope wheel, the other end of the chain and the other end of the iron chain are wound on the double rope wheel, the fixed shaft is connected with a rotating gear through a spline, a rotating ring groove is arranged in the rotating gear, two rotating blocks are slidably connected in the rotating ring groove, the lower end face of each rotating block is fixedly connected with the other end and the lower cavity wall of the driving cavity, a rotating spring is fixedly connected with the lower end face of each rotating gear, the other end and the lower cavity wall of the driving cavity are fixedly connected with a rotating torsion spring, and the lower, front side terminal surface fixedly connected with under the turning block the other end of supplementary rope, the cavity rotation is connected with the cylinder axle on the drive chamber, the epaxial fixedly connected with other end of cylinder with cavity fixed connection's cylinder torsional spring on the drive chamber, cylinder axle fixedly connected with unreels the rope sheave, it has to wind on the unreeling rope sheave the other end of rope made of hemp, the cylinder axle passes through splined connection cylinder swing gear, be equipped with the cylinder annular in the cylinder swing gear, sliding connection has the cylinder piece in the cylinder annular, cylinder piece up end fixedly connected with other end with cavity fixed connection's cylinder spring on the drive chamber, cylinder piece up end fixedly connected with the other end of stay cord, cavity fixedly connected with electro-magnet on the drive chamber, still be equipped with the waste material chamber in the organism.

4. The device for automatically replacing angle grinder sanding sheets of claim 1, wherein: button spring force is greater than clamping spring, compression spring elasticity is greater than clamping spring, auxiliary spring elasticity is greater than remove the spring, auxiliary spring elasticity is greater than rotating spring, clamp plate displacement spring elasticity is greater than the clamp spring, positive and negative motor corotation or reversal all can the chain with the iron chain is in the state of relaxing, the rope is the stretch cord, the plastics rope is the stretch cord.