阅读说明：本技术 具有磨砂头自动定位以及换砂纸装置的打磨机 (Polisher with dull polish head automatic positioning and trade abrasive paper device ) 是由 张勇 金建平 于 2021-07-15 设计创作，主要内容包括：本发明公开了具有磨砂头自动定位以及换砂纸装置的打磨机。该打磨机包括打磨台、若干个定位换砂纸部以及若干个磨砂头；若干个磨砂头安装在机械手末端且能够在打磨台的基板上方移动；基板一端设有下凹的清洁槽且另一端固定中间架以及若干个架空台,清洁槽内固定待磨砂产品的产品台,清洁槽通过管道连通循环清洁部；定位换砂纸部包的架空台上连接砂纸仓,顶升缸的伸缩端穿过架空台连接砂纸仓内的升降垫板下,砂纸仓上端设有若干个限位件,四个定位导杆位于砂纸仓边缘,撕除旧砂纸部、砂纸检测部以及砂纸刮离部依次固定在中间架上。本发明具有自动化打磨以及自动更换砂纸,安全作业,磨砂良品率高,生产速度提高的效果。(The invention discloses a sander with an automatic sanding head positioning and sandpaper replacing device. The sander comprises a sanding table, a plurality of positioning sand paper replacing parts and a plurality of sanding heads; the plurality of grinding heads are arranged at the tail end of the manipulator and can move above the substrate of the grinding table; a concave cleaning groove is formed in one end of the substrate, a middle frame and a plurality of overhead tables are fixed to the other end of the substrate, a product table of a product to be ground is fixed in the cleaning groove, and the cleaning groove is communicated with the circulating cleaning part through a pipeline; the built on stilts bench of location sand paper portion package of trading is connected the abrasive paper storehouse, and under the flexible end of jacking jar passed the lift backing plate of built on stilts bench connection abrasive paper storehouse, abrasive paper storehouse upper end was equipped with a plurality of locating part, and four positioning guide are located abrasive paper storehouse edge, tear used abrasive paper portion, abrasive paper detection portion and abrasive paper and scrape from the portion and fix in proper order on middle frame. The invention has the effects of automatic grinding and automatic sand paper replacement, safe operation, high grinding yield and high production speed.)

1. The sander with the sanding head automatic positioning and sanding paper replacing device is characterized by comprising a sanding table (01), a plurality of positioning sanding paper replacing parts (02) and a plurality of sanding heads (09); the plurality of the sanding heads (09) are arranged at the tail end of the manipulator (06) and can move above the substrate (010) of the sanding table (01), and the manipulator (06) is positioned outside the sanding table (01);

the polishing device comprises a base plate (010), baffles (011) which are vertically connected to four sides of the base plate (010), a concave cleaning groove (0101) which is arranged at one end of the base plate (010), a middle frame (012) and a plurality of overhead tables (1) which are fixed at the other end of the base plate (010), a product table (013) of a product to be polished is fixed in the cleaning groove (0101), and a first through hole (0102) of the cleaning groove (0101) is communicated with a circulating cleaning part (07) below through a pipeline;

each positioning sand paper replacing part (02) comprises a sand paper bin (2), four positioning guide rods (3), a jacking cylinder (4), a lifting base plate (5) and the overhead table (1), wherein the lower surface of an upper flat plate (10) of the overhead table (1) is fixed with the jacking cylinder (4) and the upper surface of the upper flat plate is connected with the sand paper bin (2), the lifting base plate (5) which moves up and down is arranged in the sand paper bin (2), the telescopic end of the jacking cylinder (4) penetrates through a second through hole of the upper flat plate (10) to be connected with the lifting base plate (5) and is arranged below the sand paper in the sand paper bin (2) to be attached to the upper surface of the lifting base plate (5),

the upper end of the abrasive paper bin (2) is provided with a plurality of limiting parts (6), the uppermost abrasive paper is attached to the limiting parts (6), four positioning guide rods (3) are positioned at the edge of the abrasive paper bin (2), the outer profiles of the positioning guide rods (3) and the abrasive head (09) are the same, the abrasive head (09) is extruded and limited by the four positioning guide rods (3) to enter a horizontal sand-changing paper surface, the jacking cylinder (4) is started to enable the uppermost abrasive paper to be attached and fixed to the abrasive head (09) through magic tape, the abrasive head (09) moves to drive the uppermost abrasive paper to be separated from the limiting parts (6), and the next piece of abrasive paper is attached to the limiting parts (6);

tear used abrasive paper portion (03), abrasive paper detection portion (04) and abrasive paper and scrape from portion (05) and fix in proper order on middle frame (012), tear used abrasive paper portion (03) including separation tool (031) and pressfitting tool (032) that set up relatively, the flexible end at first cylinder (033) is fixed in pressfitting tool (032), dull polish head (09) tear used abrasive paper portion (03) and get rid of old abrasive paper tear the abrasive paper quantity that abrasive paper detection portion (04) detected the laminating just be in the abrasive paper is scraped from portion (05) and is got rid of the unnecessary abrasive paper of downside.

2. Sander with automatic sanding head positioning and sandpaper changing device according to claim 1, characterized by, that the sandpaper magazine (2) comprises several columns (21) and distance plates (22) and the stop (6); the sand paper is arranged in a circumferential array of a plurality of the stand columns (21) and can be attached to the sand paper, an inner shaft hole (221) is formed in the middle of the distance adjusting plate (22) or two sides of the distance adjusting plate are symmetrically provided with the inner shaft hole (221), a radial pin hole (222) is formed in the circumferential wall of each inner shaft hole (221), a vertical shaft at the lower end of each stand column (21) is sleeved on the inner shaft hole (221), a fastening screw in each radial pin hole (222) abuts against and is attached to the stand column (21), and an adjusting hole (223) of a long circular hole structure of the distance adjusting plate (22) is connected with the upper flat plate (10) through a threaded piece;

the limiting pieces (6) are round tables made of rubber or polytetrafluoroethylene, the large-diameter circles of the round tables are located above the limiting pieces, and each cylindrical head screw in the central stepped through hole (61) of each limiting piece (6) is in threaded connection with the upper central blind hole of the stand column (21).

3. The sander with automatic sanding head positioning and sandpaper changing apparatus according to claim 2, wherein the upper end of said positioning guide (3) is higher than said stop (6), and the upper end of said positioning guide (3) is a conical lead-in end; the diameters of the positioning guide rods (3) are the same as the diameters of the upright columns (21), each positioning guide rod (3) is positioned between two adjacent upright columns (21), and the circle centers of the four positioning guide rods (3) and the upright columns (21) are positioned on the same circle;

the lower ends of the four positioning guide rods (3) are respectively inserted into the inner shaft holes (221) of the four distance adjusting plates (22).

4. The sander with the automatic sanding head positioning and sandpaper replacing device according to claim 1, wherein the overhead table (1) is a rectangular frame formed by vertically connecting two ends of four cylindrical legs (12) with the upper flat plate (10) and the lower bottom plate (11), respectively, the lower bottom plate (11) is in threaded connection with the base plate (010), the jacking cylinder (4) is located in a cavity of the overhead table (1), and a cylinder barrel of the jacking cylinder (4) is fixed on the lower surface of the upper flat plate (10) through a middle connecting plate;

the jacking cylinder (4) is any one of an air cylinder, a hydraulic cylinder or a servo linear electric cylinder.

5. The sander with an automatic sanding head positioning and sandpaper changing device according to claim 1, wherein the opposing surfaces of the separation jig (031) and the pressing jig (032) are respectively provided with a toothed surface (030), the opposing ends of the separation jig (031) form a thin plate body (034), the outer side surface of the thin plate body (034) is an outer separation surface (035) with a chamfered tangent plane structure with a larger inclination angle, and the inner side surface thereof is an inner guide surface (036) with a chamfered tangent plane structure with a smaller inclination angle;

the back side of the separation jig (031) is provided with a photoelectric sensor (037) for detecting whether the sand paper is torn off, and the photoelectric sensor (037) is fixed on the middle frame (012).

6. Sander with automatic sanding head positioning and sandpaper changing apparatus according to claim 5, characterized in that said sandpaper detection section (04) comprises two microswitches (041) with different strokes.

7. The sander with automatic sanding head positioning and sandpaper changing apparatus of claim 6, wherein said sandpaper scraping-off portion (05) is a peeling surface (051) having an inclined chamfer shape,

or the sand paper scraping part (05) is a right-angle plate (050), and the front end of an upper flat plate of the right-angle plate (050) forms the stripping surface (051) in an inclined inverted angle shape.

8. The sander with automatic sanding head positioning and sandpaper changing apparatus as set forth in claim 7, wherein a vertical pillar (0121) of said center frame (012) is screwed onto said base plate (010), said vertical pillar being attached in the middle of the rear side of a horizontal beam (0122); the right end of the front side face of the horizontal beam (0122) is connected with the lower ends of three mounting plates (0123) respectively, two microswitches (041) are in threaded connection with the upper ends of the front side faces of the two mounting plates (0123) in the middle respectively, and a vertical plate of the right-angle plate (050) is in threaded connection with the upper ends of the front side faces of the mounting plates (0123) on the right side;

the lower end of the separation jig (031) and the cylinder plate (038) of the first cylinder (033) are respectively and vertically fixed at the left end of the front side face of the horizontal beam (0122);

the left end rear side face of the horizontal beam (0122) is provided with a detection plate (0124), and the detection plate (0124) is in threaded connection with the photoelectric sensor (037).

9. The sander with automatic sanding head positioning and sandpaper changing device according to claim 1, characterized in that said circulating cleaning part (07) comprises a separation box (071) with an internal main cavity provided with multiple layers of filtering materials, a circulating pump (070) is installed on one end of said separation box (071) and an upper filtering chamber (072) is installed on the other end of said separation box (071), the bottom plate of said upper filtering chamber (072) is a hollowed-out plate (073), and said hollowed-out plate (073) is communicated with the main cavity of said separation box (071); the pipeline of the first through hole (0102) is inserted into the upper filtering cavity (072), and the lower end of the separation box (071) is provided with a drain valve (074);

four corners of the baffle plate (011) are respectively recessed inwards to form positioning ports, the upper part of the inner side of each positioning port is provided with a pagoda joint (076), the lower end of the pagoda joint (076) is connected with a liquid outlet of a circulating pump (070) through a hose, the upper end of the pagoda joint is connected with the rear end of a cleaning gun through a hose, and the cleaning gun is connected to each sanding head (09) or positioned above the product table (013);

or four corners of the lower surface of the separation box (071) are provided with universal rollers (075);

or the four side wall plates of the cleaning tank (0101) are inclined guide plates (0103).

10. The sander with an automatic sanding head positioning and sandpaper changing device according to claim 1, characterized in that the end of the manipulator (06) is pivoted to a rectangular fixture (061), one sanding head (09) is fixed to each of the four side surfaces of the rectangular fixture (061), a third through hole is formed in each of the four side surfaces of the rectangular fixture (061), and a transmission mechanism in the rectangular fixture (061) is in driving connection with each sanding head (09) through the third through hole;

the sanding head (09) is a round sanding head or a rectangular sanding head, the round sanding head can rotate in an eccentric circle, and the rectangular sanding head can do reciprocating linear motion.

Technical Field

The invention relates to automatic sanding equipment, in particular to a sanding machine with an automatic sanding head positioning and sanding paper replacing device.

Background

The meticulous process of polishing is often designed to the 3C part, adopts artifical polishing and artifical change abrasive paper at present, and its defect lies in: firstly, more grinding materials and dust are generated in the grinding operation, workers can easily suck a large amount of dust in the long-term grinding operation, the dust is harmful to human health, meanwhile, the manual grinding is carried out, the labor intensity is high, the hands are easily cut, potential safety hazards exist, human factor errors exist, the grinding surface of a product is easily damaged, the reject ratio is high, and the production efficiency is low; two, the abrasive paper of different models need be switched in polishing of same part, and artifical change abrasive paper appears the mistake easily and trades the abrasive paper model, causes to polish inefficiency or excessively polish, damages the product surface, product yields.

Disclosure of Invention

To address one or more of the above-mentioned problems, the present invention provides a sander having an automatic sanding head positioning and sandpaper changing apparatus.

According to one aspect of the invention, the sander with automatic sanding head positioning and sanding paper changing device comprises a sanding table, a plurality of positioning sanding paper changing parts and a plurality of sanding heads; the plurality of grinding heads are arranged at the tail end of the manipulator and can move above the substrate of the grinding table, and the manipulator is positioned outside the grinding table;

the base plate is horizontally placed, four sides of the base plate are vertically connected with baffle plates, one end of the base plate is provided with a downward concave cleaning groove, the other end of the base plate is fixed with a middle frame and a plurality of overhead tables, a product table of a product to be frosted is fixed in the cleaning groove, and a first through hole of the cleaning groove is communicated with a circulating cleaning part below the cleaning groove through a pipeline;

each positioning sand paper replacing part comprises a sand paper bin, four positioning guide rods, a jacking cylinder, a lifting base plate and an overhead table, the jacking cylinder is fixed on the lower surface of an upper flat plate of the overhead table, the upper surface of the upper flat plate is connected with the sand paper bin, the lifting base plate which moves up and down is arranged in the sand paper bin, the telescopic end of the jacking cylinder penetrates through a second through hole of the upper flat plate to be connected below the lifting base plate, the lowest sand paper in the sand paper bin is attached to the upper surface of the lifting base plate,

the upper end of the abrasive paper bin is provided with a plurality of limiting parts, four positioning guide rods are positioned at the edge of the abrasive paper bin under the limiting part for the uppermost piece of abrasive paper to be attached, the outer contours of the positioning guide rods and the outer contour of the polishing head are the same, the polishing head is extruded by the four positioning guide rods to be limited and enters the horizontal abrasive paper replacing surface, the jacking cylinder is started to enable the uppermost piece of abrasive paper to be attached and fixed to the polishing head through the magic tape, the polishing head moves to drive the uppermost piece of abrasive paper to be separated from the limiting part, and the next piece of abrasive paper is attached under the limiting part;

tear used abrasive paper portion, abrasive paper detection portion and abrasive paper and scrape from the portion and fix in proper order on middle frame, tear used abrasive paper portion including relative separation tool and the pressfitting tool that sets up, the flexible end at first cylinder is fixed to the pressfitting tool, and the sanding head is tearing used abrasive paper portion and is getting rid of old abrasive paper, is detecting the abrasive paper quantity of laminating and scraping from the portion and get rid of the unnecessary abrasive paper of downside at abrasive paper detection portion.

This polisher with dull polish head automatic positioning and trade abrasive paper device has realized the automatic function of polishing and automatic change abrasive paper, and its beneficial effect is: firstly, the damage of harmful working environment to the body of workers is reduced, safe operation is increased, human factor errors are avoided, the sanding yield is high, meanwhile, abrasive paper is automatically changed, the abrasive paper is guaranteed to be correct in model, and the production speed is greatly improved; secondly, a plurality of sanding heads are arranged on the manipulator, each sanding head can be provided with different types of abrasive paper, the manipulator drives the sanding heads to sequentially complete a plurality of sanding operations, frequent replacement operations of the different types of abrasive paper are avoided, sanding procedures are greatly simplified, and sanding speed is increased; thirdly, old abrasive paper is removed by tearing off the old abrasive paper part, the abrasive paper is automatically replaced by positioning the abrasive paper replacing part, the abrasive paper detecting part detects the attaching quantity of the abrasive paper and the abrasive paper scraping part removes redundant abrasive paper, so that accurate and automatic replacement of the abrasive paper is ensured; fourthly, the abrasive paper replacing part is positioned by adopting an abrasive paper bin to place a certain amount of abrasive paper, the position limiting part limits the position of the abrasive paper, the jacking cylinder automatically jacks up the attached abrasive paper, and the positioning guide rod guides the attached position of the abrasive head, so that the accuracy and high speed of abrasive paper replacement are realized; fifthly, automatic dull polish adopts the clean portion of circulation to provide the cleaning solution and gets rid of the dull polish piece in real time, and the cleaning solution gets into the washing tank to flow into the clean portion of circulation once more, greatly reduced harmful object splash and fly away in the air, realized cleaner production.

In some embodiments, the sandpaper cartridge comprises a plurality of columns, a spacer plate, and a retainer; the abrasive paper that just all can laminate is put to a plurality of stand circumference array, and the roll adjustment board centre is equipped with an interior shaft hole or both sides symmetry respectively and is equipped with an interior shaft hole, is equipped with radial pinhole on the circumference wall in every interior shaft hole, and the vertical axle sleeve of every stand lower extreme is including the shaft hole, and the tight screw in the radial pinhole supports tight laminating stand, and the regulation hole and the last flat board of the slotted hole structure of roll adjustment board pass through the screw thread spare and connect.

In some embodiments, the position-limiting members are round tables made of rubber or polytetrafluoroethylene, the large-diameter circle of each round table is located above, and a cylindrical head screw in the central stepped through hole of each position-limiting member is in threaded connection with the upper central blind hole of the upright column.

In some embodiments, the upper end of the positioning guide rod is higher than the limiting member, and the upper end of the positioning guide rod is a conical guide-in end;

the diameters of the positioning guide rods and the upright columns are the same, each positioning guide rod is positioned between two adjacent upright columns, and the circle centers of the four positioning guide rods and the upright columns are positioned on the same circle;

the lower ends of the four positioning guide rods are respectively inserted into the inner shaft holes of the four distance adjusting plates.

In some embodiments, the overhead table is a rectangular frame formed by two ends of four cylindrical supporting legs respectively and vertically connecting the upper flat plate and the lower bottom plate,

the lower bottom plate is in threaded connection with the base plate, the jacking cylinder is positioned in a cavity of the overhead table, and a cylinder barrel of the jacking cylinder is fixed on the lower surface of the upper flat plate through the middle connecting plate;

in some embodiments, the jacking cylinder is any one of a pneumatic cylinder, a hydraulic cylinder, or a servo linear electric cylinder.

In some embodiments, the opposite surfaces of the separation jig and the pressing jig are respectively provided with a toothed surface, the opposite ends of the separation jig form a thin plate body, the outer side surface of the thin plate body is an outer separation surface of a chamfer tangent plane structure with a larger inclination angle, and the inner side surface of the thin plate body is an inner guide surface of the chamfer tangent plane structure with a smaller inclination angle;

the rear side of the separation jig is provided with a photoelectric sensor for detecting whether the abrasive paper is torn off, and the photoelectric sensor is fixed on the middle frame.

In some embodiments, the sandpaper detection portion includes two microswitches with different strokes.

In some embodiments, the sandpaper scraping-off portion is a peeling surface provided with an inclined chamfer shape.

In some embodiments, the sandpaper scraping portion is a rectangular plate, and the front end of the upper flat plate of the rectangular plate forms a peeling surface in an inclined inverted angle shape.

In some embodiments, the vertical upright of the middle frame is screwed on the base plate, and the vertical upright is connected to the middle of the rear side surface of the horizontal beam; the right end of the front side surface of the horizontal beam is respectively connected with the lower ends of the three mounting plates, the two microswitches are respectively in threaded connection with the upper ends of the front side surfaces of the two mounting plates in the middle, and the vertical plate of the right-angle template is in threaded connection with the upper ends of the front side surfaces of the mounting plates on the right side;

the lower end of the separation jig and the cylinder plate of the first cylinder are respectively and vertically fixed at the left end of the front side face of the horizontal beam;

the left end rear side of the horizontal beam is provided with a detection plate, and the detection plate is in threaded connection with a photoelectric sensor.

In some embodiments, the circulating cleaning part comprises a separation box, wherein a plurality of layers of filtering materials are arranged in an internal main cavity of the separation box, a circulating pump is installed at one end of the separation box, an upper filtering cavity is arranged at the other end of the separation box, a bottom plate of the upper filtering cavity is a hollow plate, and the hollow plate is communicated with the main cavity of the separation box;

the pipeline of the first through hole is inserted into the upper filter cavity, and the lower end of the separation box is provided with a drain valve;

four corners of the baffle are respectively recessed to form positioning ports, the upper part of the inner side of each positioning port is provided with a pagoda joint, the lower end of the pagoda joint is connected with a liquid outlet of the circulating pump through a hose, the upper end of the pagoda joint is connected with the rear end of a cleaning gun through a hose, and the cleaning gun is connected to each sanding head or positioned above the product table;

in some embodiments, universal rollers are arranged at four corners of the lower surface of the separation box.

In some embodiments, the four side wall plates of the cleaning tank are sloped baffles.

In some embodiments, the end rotating arm of the manipulator is connected with a rectangular jig, four side surfaces of the rectangular jig are respectively fixed with a sanding head,

a third through hole is formed in each of four side surfaces of the rectangular jig, and a transmission mechanism in the rectangular jig penetrates through the third through holes to be connected with each sanding head in a driving mode;

the sanding head is a round sanding head or a rectangular sanding head, the round sanding head can rotate in an eccentric circle, and the rectangular sanding head can do reciprocating linear motion.

Drawings

FIG. 1 is a three-dimensional schematic view of a sander having an automatic sanding head positioning and sandpaper changing apparatus in accordance with one embodiment of the present invention;

FIG. 2 is a three-dimensional schematic view of the positioning sandpaper changing portion shown in FIG. 1;

FIG. 3 is a three-dimensional schematic view of the adjustable distance plate shown in FIG. 2;

FIG. 4 is a three-dimensional schematic view of the sanding hand of FIG. 1;

FIG. 5 is a three-dimensional schematic view of the used sandpaper peeling section, the sandpaper detecting section, and the sandpaper scraping section shown in FIG. 1;

FIG. 6 is a three-dimensional schematic view of the separation jig shown in FIG. 5;

FIG. 7 is a three-dimensional schematic view of the substrate shown in FIG. 1;

FIG. 8 is a three-dimensional schematic view of the endless cleaning section of FIG. 1;

the grinding table 01, a substrate 010, a cleaning groove 0101, a first through hole 0102, an inclined guide plate 0103, a baffle 011, a middle frame 012, a vertical column 0121, a horizontal beam 0122, an installation plate 0123, a detection plate 0124 and a product table 013;

the sand paper positioning and replacing device comprises a positioning sand paper replacing part 02, an overhead table 1, an upper flat plate 10, a lower bottom plate 11, supporting legs 12, a sand paper bin 2, an upright post 21, a distance adjusting plate 22, an inner shaft hole 221, a radial pin hole 222, an adjusting hole 223, a positioning guide rod 3, a jacking cylinder 4, a lifting base plate 5, a limiting part 6 and a central stepped through hole 61;

the used abrasive paper part 03, the tooth-shaped surface 030, the separating jig 031, the pressing jig 032, the first cylinder 033, the thin plate body 034, the outer separating surface 035, the inner guide surface 036, the photoelectric sensor 037 and the cylinder plate 038 are torn off; a sandpaper detection section 04, a microswitch 041;

the abrasive paper scraping part 05, the right-angle plate 050 and the stripping surface 051; a manipulator 06, a rectangular jig 061;

the device comprises a circulating cleaning part 07, a circulating pump 070, a separation box 071, an upper filter chamber 072, a hollowed-out plate 073, a drain valve 074, a universal roller 075 and a pagoda joint 076; a grating mounting bracket 08; the sanding head 09.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Fig. 1-8 schematically illustrate a sander having an automatic sanding head positioning and sandpaper changing apparatus in accordance with one embodiment of the present invention. As shown in the figure, the device comprises a grinding table 01, a plurality of positioning sand-changing paper parts 02 and a plurality of grinding heads 09; the plurality of sanding heads 09 are mounted at the tail end of the manipulator 06 and can move above the substrate 010 of the polishing table 01, and the manipulator 06 is located on the outer side of the polishing table 01;

the base plate 010 is horizontally placed, four sides of the base plate 010 are vertically connected with the baffle 011, one end of the base plate 010 is provided with a concave cleaning groove 0101, the other end of the base plate 010 is fixed with the middle frame 012 and the plurality of overhead tables 1, a product table 013 of a product to be frosted is fixed in the cleaning groove 0101, and a first through hole 0102 of the cleaning groove 0101 is communicated with the circulating cleaning part 07 below through a pipeline;

each positioning sand paper replacing part 02 comprises a sand paper bin 2, four positioning guide rods 3, a jacking cylinder 4, a lifting base plate 5 and an overhead table 1, wherein the jacking cylinder 4 is fixed on the lower surface of an upper flat plate 10 of the overhead table 1, the upper surface of the upper flat plate is connected with the sand paper bin 2, the lifting base plate 5 which moves up and down is arranged in the sand paper bin 2, the telescopic end of the jacking cylinder 4 penetrates through a second through hole of the upper flat plate 10 to be connected below the lifting base plate 5, the sand paper at the lowest part in the sand paper bin 2 is attached to the upper surface of the lifting base plate 5,

the upper end of the abrasive paper bin 2 is provided with a plurality of limiting pieces 6, the uppermost abrasive paper is attached to the lower side of the limiting pieces 6, the four positioning guide rods 3 are located at the edges of the abrasive paper bin 2, the outer contours of the positioning guide rods 3 are the same as that of the abrasive head 09, the abrasive head 09 is extruded and limited by the four positioning guide rods 3 to enter the horizontal sand-changing paper surface, the jacking cylinder 4 is started to enable the uppermost abrasive paper to be attached to the fixed abrasive head 09 through the magic tape, the abrasive head 09 moves to drive the uppermost abrasive paper to be separated from the limiting pieces 6, and the next piece of abrasive paper is attached to the lower side of the limiting pieces 6;

tear used abrasive paper portion 03, abrasive paper detection portion 04 and abrasive paper scrape from portion 05 fix in proper order on middle frame 012, tear used abrasive paper portion 03 including the separation tool 031 and the pressfitting tool 032 of relative setting, pressfitting tool 032 fixes the flexible end at first cylinder 033, dull polish head 09 removes old abrasive paper tearing used abrasive paper portion 03, the abrasive paper quantity that detects the laminating in abrasive paper detection portion 04 just scrapes from portion 05 and gets rid of the unnecessary abrasive paper of downside at abrasive paper.

The sander with the sanding head automatic positioning and sandpaper replacing device comprises the following working steps:

firstly, fixing a product in a product table 013, and placing sand paper on each sand grinding head 09;

second, the circulation cleaning part 07 outputs cleaning liquid above the product;

thirdly, the manipulator 06 drives the preset sequence of the grinding heads 09 to enter the grinding position to grind the product, when the grinding heads 09 finish the grinding work, the manipulator 06 rotates to enable the next grinding head 09 to enter the grinding position, and each grinding head 09 finishes the grinding work to finish the grinding of the product;

fourthly, removing the old abrasive paper, and driving each abrasive head 09 to enter the front side of the abrasive paper tearing part 03 by the manipulator 06 to tear off each old abrasive paper in sequence;

fifthly, the mechanical arm 06 drives each sanding head 09 to sequentially enter the upper part of the corresponding positioning sand paper replacing part 02, the lower surface of each sanding head 09 inclines to enter the sanding paper bin 2, then the sanding heads are extruded by the positioning guide rods 3 for limiting, the set sanding paper replacing plane is entered, the jacking cylinder 4 carries out jacking operation, the topmost sanding paper is attached to the lower plane of the sanding head 09 through magic, the mechanical arm 06 drives the sanding heads 09 to move upwards, the bottommost sanding paper deforms and is separated from the constraint of the limiting part 6, the next piece of sanding paper is limited in the sanding paper bin 2 by the limiting part 6, and then the next sanding head 09 is filled with sanding paper;

sixthly, the manipulator 09 drives each sanding head 09 to enter the sanding detection part 04 to detect and joint several pieces of sandpaper, wherein one piece of sandpaper is normally jointed, if two pieces of sandpaper are normally jointed, the two pieces of sandpaper enter the sanding scraping part 05 to remove one piece of sandpaper, and if 0 piece of sandpaper is 0, the step five is carried out, and the sandpaper is jointed again;

and seventhly, continuing the grinding operation.

This polisher with dull polish head automatic positioning and trade abrasive paper device has realized the automatic function of polishing and automatic change abrasive paper, and its beneficial effect is: firstly, the damage of harmful working environment to the body of workers is reduced, safe operation is increased, human factor errors are avoided, the sanding yield is high, meanwhile, abrasive paper is automatically changed, the abrasive paper is guaranteed to be correct in model, and the production speed is greatly improved; secondly, a plurality of sanding heads 09 are arranged on the manipulator 06, each sanding head 09 can be provided with different types of abrasive paper, the manipulator 09 drives the sanding heads 09 to sequentially complete a plurality of sanding operations, frequent replacement of different types of abrasive paper is avoided, sanding procedures are greatly simplified, and sanding speed is increased; thirdly, old abrasive paper is removed by tearing off the old abrasive paper part 03, the abrasive paper is automatically replaced by the positioning abrasive paper replacing part 02, the abrasive paper detecting part 04 detects the adhering quantity of the abrasive paper, and redundant abrasive paper is removed by the abrasive paper scraping part 05, so that accurate and automatic replacement of the abrasive paper is ensured; fourthly, the sand paper replacing part 02 is positioned by placing a certain amount of sand paper in the sand paper bin 2, the position of the sand paper is limited by the limiting piece 6, the jacking cylinder 4 automatically jacks up the attached sand paper, and the positioning guide rod 3 guides the attached position of the sand grinding head 09, so that the accuracy and high speed of sand paper replacement are realized; fifthly, automatic dull polish adopts circulation cleaning part 07 to provide the cleaning solution and gets rid of the dull polish piece in real time, and the cleaning solution gets into washing tank 0101 to flow into circulation cleaning part 07 once more, greatly reduced harmful substance splash and fly away in the air, realized cleaner production.

Preferably, the sandpaper cabin 2 comprises a plurality of columns 21, a distance adjusting plate 22 and a limiting piece 6; the columns 21 are arranged in a circumferential array and can be attached with sand paper, an inner shaft hole 221 is formed in the middle of the distance adjusting plate 22 or inner shaft holes 221 are symmetrically formed in two sides of the distance adjusting plate respectively, a radial pin hole 222 is formed in the circumferential wall of each inner shaft hole 221, the lower end of each column 21 is vertically sleeved in each inner shaft hole 221 in a sleeved mode, a fastening screw in each radial pin hole 222 abuts against and is attached to the column 21, and an adjusting hole 223 of a long circular hole structure of the distance adjusting plate 22 is connected with the upper flat plate 10 through a threaded part; the beneficial effects are as follows: the sand paper storehouse 2 simple structure of this setting, installation easy maintenance, sand paper supply is accurate quick, and regulation hole 223 can adjust sand paper size and model, is suitable for more occasions.

Preferably, the position-limiting members 6 are round tables made of rubber or polytetrafluoroethylene, a large-diameter circle of each round table is positioned above the position-limiting members, and a cylindrical head screw in a central stepped through hole 61 of each position-limiting member 6 is in threaded connection with an upper central blind hole of the upright post 21; the beneficial effects are as follows: invert round platform structure, the laminating of locating part 6 and the top abrasive paper is the slash, and abrasive paper breaks away from for a soft process of slow deformation, and stress is little, and rubber material or polytetrafluoroethylene material have certain elasticity simultaneously, can protect abrasive paper, and central ladder through-hole 61 can reduce the part size.

Preferably, the inner contour of the sandpaper cartridge 2 is the same as the cross-sectional shape of the sanding head 09; the inner contour of the sand paper bin 2 is in clearance fit with the lifting base plate 5. The beneficial effects are as follows: the structure can effectively guide the sand paper to move up and down.

Preferably, the upper end of the positioning guide rod 3 is higher than the limiting piece 6, and the upper end of the positioning guide rod 3 is a conical guide-in end; the diameters of the positioning guide rods 3 and the upright posts 21 are the same, each positioning guide rod 3 is positioned between two adjacent upright posts 21, and the circle centers of the four positioning guide rods 3 and the upright posts 21 are positioned on the same circle;

the lower ends of the four positioning guide rods 3 are respectively inserted into the inner shaft holes 221 of the four distance adjusting plates 22. The beneficial effects are as follows: the optimal guiding effect can be realized through the arrangement, and meanwhile, the structure is simple, and the adjustment is convenient.

Preferably, the overhead table 1 is a rectangular frame formed by vertically connecting an upper flat plate 10 and a lower flat plate 11 at two ends of four cylindrical supporting legs 12 respectively, the lower flat plate 11 is in threaded connection with the base plate 010, the jacking cylinder 4 is positioned in a cavity of the overhead table 1, and a cylinder barrel of the jacking cylinder 4 is fixed on the lower surface of the upper flat plate 10 through a middle connecting plate;

the jacking cylinder 4 is any one of an air cylinder, a hydraulic cylinder or a servo linear electric cylinder. The beneficial effects are as follows: the overhead table 1 is simple in structure, convenient for arrangement of other parts, high in strength and free of shaking and shaking actions in the laminating process; the jacking cylinder 4 has the three structures, and can realize stable power output.

Preferably, tooth-shaped surfaces 030 are respectively arranged on opposite surfaces of the separation jig 031 and the pressing jig 032, a thin plate body 034 is formed at the opposite end of the separation jig 031, the outer side surface of the thin plate body 034 is an outer separation surface 035 with a chamfer section structure with a larger inclination angle, and the inner side surface of the thin plate body 034 is an inner guide surface 036 with a chamfer section structure with a smaller inclination angle; the outer separating surface 035 enters between the waste sand paper and the grinding head 09, the waste sand paper is slowly peeled off and enters the toothed surface 030 through the inner guide surface 036, the first air cylinder 033 pushes the toothed surface 030 of the pressing jig 032 to press and fix the waste sand paper, the grinding head 09 moves, and the waste sand paper is separated from the grinding head 09;

the rear side of the separation jig 031 is provided with a photoelectric sensor 037 for detecting whether the sand paper is torn off, and the photoelectric sensor 037 is fixed on the middle frame 012. The beneficial effects are as follows: this separation tool 031's outer separating surface 035 can high accuracy separation old abrasive paper and sanding head 09, the trend that interior spigot surface 036 conveniently set up simultaneously, and profile of tooth face 030 makes things convenient for the friction of abrasive paper fixed, prevents to break away from, and photoelectric sensor 037 can effectively detect whether abrasive paper tears.

Preferably, the sandpaper detection portion 04 includes two micro switches 041 having different strokes;

when the sanding head 09 moves for a set detection distance, when one microswitch 041 has an electric signal, the sanding head 09 sticks one piece of sand paper at the moment; when the two micro switches 041 have electric signals, the sanding head 09 sticks two pieces of sandpaper at the moment; when both the micro switches 041 have no electrical signal, the sanding head 09 sticks no sandpaper at this time. The beneficial effects are as follows: this set up simple structure, the abrasive paper laminating condition of efficient differentiation abrasive head 09 makes things convenient for going on of next action.

Preferably, the abrasive paper scraping part 05 is a stripping surface 051 with an inclined inverted angle shape, the sanding head 09 drives two pieces of abrasive paper to enter the stripping surface, and the abrasive paper at the lower end is scraped away by the stripping surface; the beneficial effects are as follows: the stripping surface 051 can better remove the next piece of sandpaper.

Preferably, the sand paper scraping part 05 is a right-angle plate 050, and the front end of an upper flat plate of the right-angle plate 050 forms a stripping surface 051 in an inclined inverted angle shape.

Preferably, the intermediate frame 012 is a T-shaped frame, and the vertical pillar 0121 of the intermediate frame 012 is screwed on the substrate 010 and is connected to the middle of the rear side of the horizontal beam 0122; the right end of the front side surface of the horizontal beam 0122 is respectively connected with the lower ends of the three mounting plates 0123, the two micro switches 041 are respectively in threaded connection with the upper ends of the front side surfaces of the two mounting plates 0123 in the middle, and the vertical plate of the right-angle plate 050 is in threaded connection with the upper ends of the front side surfaces of the mounting plates 0123 on the right side;

the lower end of the separation jig 031 and the cylinder plate 038 of the first cylinder 033 are respectively and vertically fixed at the left end of the front side face of the horizontal beam 0122;

the left end rear side of the horizontal beam 0122 is provided with a detection plate 0124, and the detection plate 0124 is in threaded connection with a photoelectric sensor 037. The beneficial effects are as follows: the structure is simple, and the sequence of each process is convenient to carry out.

Preferably, the circulating cleaning part 07 comprises a separation box 071 with a main cavity inside provided with a plurality of layers of filtering materials, one end of the separation box 071 is provided with a circulating pump 070, the other end of the separation box 071 is provided with an upper filtering cavity 072, a bottom plate of the upper filtering cavity 072 is a hollow plate 073, and the hollow plate 073 is communicated with the main cavity of the separation box 071; the pipeline of the first through hole 0102 is inserted into the upper filter chamber 072, and the lower end of the separation box 071 is provided with a blowoff valve 074;

the four corners of the baffle 011 are respectively recessed inwards to form positioning ports, the upper part of the inner side of each positioning port is provided with a pagoda joint 076, the lower end of the pagoda joint 076 is connected with the liquid outlet of the circulating pump 070 through a hose, the upper end of the pagoda joint 076 is connected with the rear end of a cleaning gun through a hose, and the cleaning gun is connected with each sanding head 09 or positioned above the product table 013;

preferably, universal rollers 075 are arranged at four corners of the lower surface of the separation box 071; the beneficial effects are as follows: the circulation cleaning part 07 can be moved to facilitate entering an optimal working position.

Preferably, the four side wall plates of the cleaning tank 0101 are inclined guide plates 0103; the beneficial effects are as follows: the tilted baffles 0103 ensure that the liquid is left behind quickly.

Preferably, a grating mounting frame 08 is mounted outside each positioning port. The beneficial effects are as follows: the grating mount 08 mounts a light curtain at a set position to detect the limit position and switching position of various operations.

Preferably, the tail end rotating arm of the manipulator 06 is connected with a rectangular jig 061, four side surfaces of the rectangular jig 061 are respectively fixed with one sanding head 09, four side surfaces of the rectangular jig 061 are respectively provided with a third through hole, and a transmission mechanism in the rectangular jig 061 penetrates through the third through hole to be connected with each sanding head 09 in a driving mode; the beneficial effects are as follows: this rectangular jig 061 can carry five sanding heads 09, using a variety of working positions.

Preferably, the sanding head 09 is a round sanding head or a rectangular sanding head, the round sanding head can rotate in an eccentric circle, and the rectangular sanding head can do reciprocating linear motion.

The foregoing are only some embodiments of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.