CN117718867A - Automatic polishing machine of tool changing - Google Patents

Abstract

The invention relates to the technical field of polishing machines, in particular to an automatic tool changing polishing machine which comprises a brake motor, wherein a square shell is fixedly arranged at the front end of the brake motor, an output shaft of the brake motor movably penetrates through the inner wall of the rear end of the square shell, connecting pipes are jointly installed in a penetrating and rotating mode on the inner walls of the upper end and the lower end of the square shell, a driving mechanism is arranged between the connecting pipes and the brake motor, the lower ends of the connecting pipes are communicated with splicing pipes, connecting columns are fixedly connected to the lower ends of the splicing pipes, and a plurality of connecting plates are rotatably connected around the central annular array at the lower edges of the outer walls of the connecting columns.

Description

Automatic polishing machine of tool changing

Technical Field

The invention relates to the technical field of polishing machines, in particular to a polishing machine capable of automatically changing a tool.

Background

The polishing machine is a mechanical device for surface polishing, and the polishing machine is driven by electricity to rotate at a high speed, so that the polishing cutter is contacted with the surface of a workpiece, and the surface quality and the smoothness can be improved. The polishing tool has different materials, shapes and sizes, can be used for polishing various materials and surface types, and can use various materials, and the specific choice depends on the materials to be treated and the polishing effect to be achieved, such as sponge, fiber, diamond, sand paper and the like.

The polishing machine is commonly used for polishing plates, polishing efficiency can be improved by adopting a polishing cutter with larger surface area for the plates with smooth surfaces, however, in order to increase artistic sense and unique visual effect, some hole-shaped grooves, groove textures and the like are formed in the surfaces of the plates, the spaces are narrow, the polishing cutter with larger surface area is difficult to polish, and workers are required to detach and replace the polishing cutter and install a new smaller polishing cutter, so that in polishing of the whole plate, the operation complexity is increased, and the smoothness of polishing operation is reduced. For this purpose, we propose an automatic tool changing polisher.

Disclosure of Invention

The invention aims to provide a polishing machine capable of automatically changing a tool so as to solve the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic tool changing's burnishing machine, includes brake motor, brake motor's front end fixed mounting has square shell, and brake motor's output shaft activity runs through in square shell's rear end inner wall, square shell's upper and lower end inner wall runs through jointly and rotates installs the connecting pipe, be equipped with actuating mechanism between connecting pipe and the brake motor, and the lower extreme intercommunication of connecting pipe has the concatenation pipe, the lower extreme fixedly connected with spliced pole of concatenation pipe, the outer wall lower part edge of spliced pole is rotated around its central annular array and is connected with the polylith connecting plate, polylith the equal fixedly connected with cambered surface of lower extreme of connecting plate is polished block, and is equipped with between polylith connecting plate, concatenation pipe, connecting pipe and the square shell and draws in the mechanism in, the lower extreme of spliced pole is equipped with plasticity grinding machanism, the equal fixedly connected with handle of the both sides wall of brake motor's rear end and square shell.

Preferably, the driving mechanism comprises two bevel gears, one of the bevel gears is fixedly connected to the output shaft end of the brake motor, the other bevel gear is fixedly sleeved on the outer wall of the connecting pipe, the two bevel gears are located in the square shell, and the two bevel gears are meshed with each other.

Preferably, the folding mechanism comprises a threaded column and a guide sliding groove, the guide sliding groove is formed in the outer wall of the splicing pipe, one end of the threaded column is rotationally connected to the upper end of the connecting column, the other end of the threaded column extends to the upper portion of the splicing pipe, a transmission assembly is arranged between the other end of the threaded column and the square shell, a connecting ring is sleeved on the outer wall of the threaded column in a threaded manner, a guide sliding block is fixedly connected to the outer wall of the connecting ring, the guide sliding block is in sliding fit with the guide sliding groove, one end of the guide sliding block, which is far away from the connecting ring, is fixedly connected with a sleeve ring, the sleeve ring is slidably sleeved on the lower edge of the outer wall of the splicing pipe, the outer wall of the sleeve ring and one ends, which are far away from the connecting column, of the plurality of connecting plates are rotationally connected with connecting rods, and a limiting mechanism is arranged between the sleeve ring and the splicing pipe.

Preferably, the transmission assembly comprises two L-shaped fixing blocks and two toothed wheels, wherein the two L-shaped fixing blocks are symmetrically and fixedly connected to the upper end of the square shell, a motor is fixedly connected between the two L-shaped fixing blocks, the two toothed wheels are respectively and fixedly connected to the top end of the threaded column and the output shaft end of the motor, and the two toothed wheels are meshed with each other.

Preferably, the stop gear includes four hole grooves and two U-shaped barrels, two U-shaped barrel symmetry fixed connection is in the upper end of cup jointing the ring, and the inner wall of two U-shaped barrels all slides and alternates there is spacing post, two all fixed cover is equipped with the solid fixed ring on the outer wall of spacing post, two gu fixed ring respectively with two U-shaped barrel between the inner wall equal fixedly connected with first spring, two first spring slip cap is established respectively on the outer wall of two spacing posts, two the one end of spacing post all is hemispherical, and the equal fixedly connected with spacing dish of the other end of two spacing posts, two spacing dish laminating respectively in the tip of two U-shaped barrels, wherein two hole groove symmetry is seted up at the outer wall upper portion edge of piecing together the pipe, two other two hole groove symmetry are seted up at the outer wall lower part edge of piecing together the pipe, two the hemisphere portion of spacing post respectively with two hole groove sliding fit that are located the below.

Preferably, the plastic polishing mechanism comprises a connecting disc, the connecting disc is fixedly connected to the bottom end of a connecting column, the lower end of the connecting disc is fixedly connected with a fixing column, the lower end of the fixing column is fixedly connected with a polishing disc, the outer wall of the fixing column is fixedly connected with a plurality of second springs around a central annular array, one ends of the second springs, far away from the fixing column, are fixedly connected with elastic polishing belts in common, the second springs are respectively corresponding to the cambered polishing blocks, the elastic polishing belts are attached between the cambered polishing blocks, the elastic polishing belts are in an extruded shape, and a telescopic polishing mechanism is arranged between the polishing disc and the elastic polishing belts.

Preferably, the telescopic polishing mechanism comprises a plurality of U-shaped grooves, the plurality of U-shaped grooves are formed in the outer wall of the polishing disc around the central annular array of the polishing disc, guide clamping grooves are formed in the inner walls of the plurality of U-shaped grooves, the U-shaped polishing blocks are matched with the inner walls of the plurality of U-shaped grooves in a shape, one ends of the U-shaped polishing blocks are fixedly connected to the edge of the lower portion of the inner surface of the elastic polishing belt, the outer walls of the U-shaped polishing blocks are fixedly connected with guide clamping blocks, the guide clamping blocks are respectively in sliding fit with the guide clamping grooves, and the U-shaped polishing blocks are respectively located under the second springs.

Compared with the prior art, the invention has the beneficial effects that:

1. through brake motor, square shell, connecting pipe, actuating mechanism, concatenation pipe, spliced pole, connecting plate, cambered surface polishing piece, draw in mechanism, drive assembly and the mutually supporting of handle, the polylith cambered surface polishing piece that is in the horizontality can be switched into the polylith cambered surface polishing piece that is in the vertical state voluntarily, but the polishing sword that the surface is great automatic switch-over becomes less polishing sword promptly, can carry out automatic switch-over use according to the level and smooth place of panel surface, poroid groove and recess texture etc. to need not to dismantle and change polishing sword and install new less polishing sword, in the polishing of monoblock panel, simplified the operation, improved the smoothness of polishing operation.

2. Through setting up stop gear, can carry out spacingly to the polylith cambered surface polishing piece that is in the horizontality and the polylith cambered surface polishing piece that is in the vertical state, avoid the polylith cambered surface polishing piece that is in the horizontality and the polylith cambered surface polishing piece that is in the vertical state to take place the position offset.

3. By arranging the plastic polishing mechanism, when polishing narrow parts such as hole-shaped grooves and groove textures on the surface of the plate, polishing blind areas existing at the bottoms of the cambered polishing blocks when the cambered polishing blocks are in a vertical state are made up, and polishing effect is guaranteed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the invention at a square shell;

FIG. 3 is a cross-sectional view of the square shell, connecting tube, splice tube and connecting post of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a partial bottom view of the present invention;

FIG. 6 is a partial cross-sectional view of the present invention;

FIG. 7 is a partially disassembled view of the present invention;

fig. 8 is a schematic view of a partial structure of the present invention.

In the drawings, the list of components represented by the various numbers is as follows: 1. a toothed wheel; 2. an L-shaped fixed block; 3. a motor; 4. a brake motor; 5. a grip; 6. a guide chute; 7. a connecting plate; 8. grinding blocks on the cambered surface; 9. a connecting rod; 10. a connecting column; 11. splicing pipes; 12. a square shell; 13. a connecting pipe; 14. a threaded column; 15. a hole groove; 16. a limiting disc; 17. a first spring; 18. a connecting ring; 19. a sleeve joint ring; 20. a guide slide block; 21. a fixing ring; 22. a limit column; 23. a connecting disc; 24. polishing the grinding disc; 25. an elastic sanding belt; 26. u-shaped grinding blocks; 27. a second spring; 28. fixing the column; 29. a U-shaped groove; 30. a guide clamping groove; 31. a guide clamping block; 32. bevel gears; 33. a U-shaped barrel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-8, an automatic tool changing polisher in the illustration comprises a brake motor 4, wherein a square shell 12 is fixedly arranged at the front end of the brake motor 4, an output shaft of the brake motor 4 movably penetrates through the inner wall of the rear end of the square shell 12, a connecting pipe 13 is jointly rotatably arranged on the inner wall of the upper end and the lower end of the square shell 12, a driving mechanism is arranged between the connecting pipe 13 and the brake motor 4, a splicing pipe 11 is communicated with the lower end of the connecting pipe 13, the lower end of the splicing pipe 11 is fixedly connected with a connecting column 10, a plurality of connecting plates 7 are rotatably connected around a central annular array at the lower edge of the outer wall of the connecting column 10, cambered polishing blocks 8 are fixedly connected to the lower ends of the plurality of connecting plates 7, a gathering mechanism is arranged among the splicing pipe 11, the connecting pipe 13 and the square shell 12, a plastic polishing mechanism is arranged at the lower end of the connecting column 10, and grips 5 are fixedly connected to the rear end of the brake motor 4 and two side walls of the square shell 12.

Referring to fig. 2, the driving mechanism includes two bevel gears 32, one of the bevel gears 32 is fixedly connected to the output shaft end of the brake motor 4, the other bevel gear 32 is fixedly sleeved on the outer wall of the connecting pipe 13, the two bevel gears 32 are both located inside the square shell 12, and the two bevel gears 32 are meshed with each other.

Referring to fig. 1-6 and 8, in the drawings, the drawing mechanism includes a threaded column 14 and a guiding chute 6, the guiding chute 6 is provided on an outer wall of the splicing tube 11, one end of the threaded column 14 is rotatably connected to an upper end of the connecting column 10, the other end of the threaded column 14 extends to a position above the splicing tube 11, a transmission component is disposed between the other end of the threaded column 14 and the square shell 12, a connecting ring 18 is screwed on an outer wall of the threaded column 14, a guiding slider 20 is fixedly connected to an outer wall of the connecting ring 18, the guiding slider 20 is slidably matched with the guiding chute 6, one end of the guiding slider 20 away from the connecting ring 18 is fixedly connected with a sleeving ring 19, the sleeving ring 19 is slidably sleeved on an edge of a lower portion of the outer wall of the splicing tube 11, a connecting rod 9 is rotatably connected between the outer wall of the sleeving ring 19 and one end of the plurality of connecting plates 7 away from the connecting column 10, and a limiting mechanism is disposed between the sleeving ring 19 and the splicing tube 11.

Referring to fig. 1-3, the transmission assembly in the drawings includes two L-shaped fixing blocks 2 and two toothed wheels 1, the two L-shaped fixing blocks 2 are symmetrically and fixedly connected to the upper end of the square shell 12, a motor 3 is fixedly connected between the two L-shaped fixing blocks 2, the two toothed wheels 1 are respectively and fixedly connected to the top ends of the threaded columns 14 and the output shaft ends of the motor 3, and the two toothed wheels 1 are meshed with each other.

In this embodiment, for polishing the flat part of the plate, the brake motor 4 is connected with an external power source, so that the brake motor 4 can drive the bevel gear 32 at the end part of the brake motor to rotate, the bevel gear 32 can drive the bevel gear 32 fixedly sleeved on the outer wall of the connecting pipe 13 to rotate, then the connecting pipe 13 can rotate in the inner wall of the square shell 12, the connecting pipe 13 can drive the splicing pipe 11, the connecting column 10, the connecting plate 7, the cambered surface polishing block 8, the threaded column 14, the guide chute 6, the connecting ring 18, the guide sliding block 20 and the sleeving ring 19 to rotate together with the connecting rod 9, and the toothed wheel 1 at the top end of the threaded column 14 can drive the toothed wheel 1 at the end part of the motor 3 to rotate. The polishing machine is provided with three handles 5, and can be held according to habit, and a plurality of cambered polishing blocks 8 can be moved against the flat part of the plate to carry out polishing work.

For narrow parts such as hole-shaped grooves and groove textures on the surface of a plate, firstly, the brake motor 4 is closed, then, the motor 3 is connected with an external power supply, so that the motor 3 can drive the toothed wheel 1 at the end part of the motor to rotate, the toothed wheel 1 connected to the top end of the threaded column 14 can also rotate, the bottom end of the threaded column 14 can rotate at the upper end of the connecting column 10, a connecting ring 18 in threaded connection with the outer wall of the threaded column 14 can slide upwards in the splicing tube 11, the connecting ring 18 can drive a guide sliding block 20 to slide upwards in a guide sliding groove 6 on the outer wall of the splicing tube 11, the guide sliding block 20 can drive the sleeve connecting ring 19 to slide upwards in the outer wall of the splicing tube 11, the sleeve connecting ring 19 can drive a plurality of connecting rods 9 to synchronously rotate upwards, until a plurality of connecting plates 7 are attached to the outer wall of the connecting column 10, and at the moment, a plurality of cambered polishing blocks 8 are in a vertical state, the space occupation degree during polishing can be greatly reduced, and therefore, when the brake motor 4 is started, the polishing hole-shaped grooves and the surface of the plate can be treated. Therefore, the polishing knife does not need to be disassembled and replaced and a new smaller polishing knife is installed, and in the polishing of a whole plate, the operation is simplified, and the smoothness of polishing operation is improved.

Example 2

Referring to fig. 3 and 4, in this embodiment for further description of example 1, the limiting mechanism in the drawings includes four hole slots 15 and two U-shaped cylinders 33, the two U-shaped cylinders 33 are symmetrically and fixedly connected to the upper ends of the sleeve rings 19, the inner walls of the two U-shaped cylinders 33 are respectively and slidably inserted with limiting columns 22, the outer walls of the two limiting columns 22 are respectively and fixedly sleeved with a fixing ring 21, a first spring 17 is respectively and fixedly connected between the two fixing rings 21 and the inner walls of the two U-shaped cylinders 33, the two first springs 17 are respectively and slidably sleeved on the outer walls of the two limiting columns 22, one ends of the two limiting columns 22 are respectively and fixedly connected with limiting discs 16, the two limiting discs 16 are respectively attached to the ends of the two U-shaped cylinders 33, the two hole slots 15 are symmetrically arranged at the upper edges of the outer walls of the splicing tube 11, the other two hole slots 15 are symmetrically arranged at the lower edges of the outer walls of the splicing tube 11, and the hemispherical parts of the two limiting columns 22 are respectively and slidably matched with the two holes 15 located below.

In this embodiment, when the plurality of cambered surface polishing blocks 8 are in a horizontal state, under the action force of the two first springs 17, the hemispherical portions of the two limiting columns 22 are located in the two hole slots 15 which are tightly abutted against the outer wall of the splicing tube 11 and located below, the two limiting columns 22 can limit the upward movement of the socket ring 19 to a certain extent, the rotation of the threaded column 14 can be limited to a certain extent, the threaded column 14 is prevented from easily rotating, when the socket ring 19 slides upward on the outer wall of the splicing tube 11 to enable the plurality of cambered surface polishing blocks 8 to be in a vertical state, in this process, the two U-shaped cylinders 33 can move upward along with it, and the hemispherical portions of the limiting columns 22 in the two U-shaped cylinders 33 can slide away from the corresponding hole slots 15, in the process, the two limiting columns 22 drive the fixing rings 21 to extrude the first springs 17 connected with the U-shaped cylinders 33 until the hemispherical parts of the two limiting columns 22 are attached to the outer wall of the spliced tube 11, the hemispherical parts of the two limiting columns 22 are attached to the outer wall of the spliced tube 11 to slide upwards along with the continuous upward movement of the sleeve joint ring 19 until the plurality of cambered surface polishing blocks 8 are in a vertical state, the sleeve joint ring 19 at the moment can move upwards to enable the two limiting columns 22 to respectively correspond to the two hole grooves 15 on the upper side of the outer wall of the spliced tube 11, and under the action force of the first springs 17, the hemispherical parts of the two limiting columns 22 can be respectively and automatically inserted into the two hole grooves 15, so that the rotation of the threaded columns 14 can still be limited to a certain extent when the plurality of cambered surface polishing blocks 8 are in the vertical state.

Example 3

Referring to fig. 5-7, in this embodiment for further description of example 1, the plastic polishing mechanism includes a connecting disc 23, the connecting disc 23 is fixedly connected to the bottom end of the connecting post 10, the lower end of the connecting disc 23 is fixedly connected with a fixing post 28, the lower end of the fixing post 28 is fixedly connected with a polishing disc 24, the outer wall of the fixing post 28 is fixedly connected with a plurality of second springs 27 around its central annular array, one ends of the plurality of second springs 27 far away from the fixing post 28 are fixedly connected with elastic polishing belts 25 together, the plurality of second springs 27 respectively correspond to the plurality of cambered polishing blocks 8, the elastic polishing belts 25 are attached between the plurality of cambered polishing blocks 8, the elastic polishing belts 25 are in an extruded shape, and a telescopic polishing mechanism is arranged between the polishing disc 24 and the elastic polishing belts 25.

Referring to fig. 5-7, in the drawings, the telescopic polishing mechanism includes a plurality of U-shaped grooves 29, the plurality of U-shaped grooves 29 are formed on the outer wall of the polishing disc 24 around the central annular array of the polishing disc 24, guide clamping grooves 30 are formed on the inner walls of the plurality of U-shaped grooves 29, the inner walls of the plurality of U-shaped grooves 29 are matched with the U-shaped polishing blocks 26 in a shape, one ends of the plurality of U-shaped polishing blocks 26 are fixedly connected to the lower edge of the inner surface of the elastic polishing belt 25, the outer walls of the plurality of U-shaped polishing blocks 26 are fixedly connected with guide clamping blocks 31, the plurality of guide clamping blocks 31 are respectively matched with the plurality of guide clamping grooves 30 in a sliding manner, and the plurality of U-shaped polishing blocks 26 are respectively located under the plurality of second springs 27.

In this embodiment, when the plurality of cambered surface polishing blocks 8 are in a horizontal state, the plurality of cambered surface polishing blocks 8 can squeeze the elastic polishing belt 25 to deform the elastic polishing belt 25, the plurality of second springs 27 connected with the outer wall of the fixed column 28 are all squeezed, the U-shaped polishing blocks 26 in the plurality of U-shaped grooves 29 of the polishing disc 24 at the lower end of the fixed column 28 are completely collected in the U-shaped grooves 29, when the plurality of cambered surface polishing blocks 8 polish the flat parts of the surfaces of the plates, the connecting disc 23, the polishing disc 24 and the plurality of U-shaped polishing blocks 26 can rotate along with the polishing disc 24 and the plurality of U-shaped polishing blocks 26, and polishing efficiency is further improved; when the plurality of cambered surface polishing blocks 8 rotate upwards to be in a vertical state, under the action force of the plurality of second springs 27, the elastic polishing belt 25 can be outwards expanded to restore to the original state, at the moment, the elastic polishing belt 25 is in a circular ring shape, the radius of the elastic polishing belt 25 is consistent with the radius of a circle formed between the plurality of cambered surface polishing blocks 8, the elastic polishing belt 25 can drive the plurality of U-shaped polishing blocks 26 to outwards slide in the plurality of U-shaped grooves 29 respectively when restoring to the original state, the guide clamping blocks 31 on the outer walls of the plurality of U-shaped polishing blocks 26 can outwards slide in the guide clamping grooves 30 in the corresponding U-shaped grooves 29, and when polishing the narrow parts such as hole grooves, groove textures and the like on the surface of a plate, the polishing blind areas existing at the bottoms of the plurality of cambered surface polishing blocks 8 are compensated, and the polishing effect is ensured.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an automatic burnishing machine of tool changing, includes brake motor (4), its characterized in that: the front end fixed mounting of brake motor (4) has square shell (12), and the output shaft activity of brake motor (4) runs through in the rear end inner wall of square shell (12), the upper and lower end inner wall of square shell (12) runs through jointly and rotates installs connecting pipe (13), be equipped with actuating mechanism between connecting pipe (13) and brake motor (4), and the lower extreme intercommunication of connecting pipe (13) has spliced tube (11), the lower extreme fixedly connected with spliced tube (11) connecting column (10), the outer wall lower part edge of spliced tube (10) is rotated around its central annular array and is connected with polylith connecting plate (7), polylith the equal fixedly connected with cambered surface of lower extreme of connecting plate (7) is polished block (8), and is equipped with between polylith connecting plate (7), spliced tube (11), connecting pipe (13) and square shell (12) and draws in the mechanism in, the lower extreme of spliced tube (10) is equipped with plasticity polishing mechanism, the both sides wall of rear end and square shell (12) of brake motor (4) are all fixedly connected with handle (5).

2. The automatic tool changing polisher according to claim 1, wherein: the driving mechanism comprises two bevel gears (32), one bevel gear (32) is fixedly connected to the output shaft end of the brake motor (4), the other bevel gear (32) is fixedly sleeved on the outer wall of the connecting pipe (13), the two bevel gears (32) are both positioned in the square shell (12), and the two bevel gears (32) are meshed with each other.

3. The automatic tool changing polisher according to claim 1, wherein: the utility model provides a draw in mechanism includes screw thread post (14) and direction spout (6), the outer wall at spliced tube (11) is offered to direction spout (6), the one end of screw thread post (14) rotates to be connected in the upper end of spliced tube (10), and the other end of screw thread post (14) extends to the top of spliced tube (11), and is equipped with drive assembly between the other end of screw thread post (14) and square shell (12), go up the screw thread and cup jointed go-between (18) in the outer wall of screw thread post (14), the outer wall fixedly connected with direction slider (20) of go-between (18), sliding fit between direction slider (20) and direction spout (6), and the one end fixedly connected with that go-between (20) kept away from go-between (18) cup joints ring (19), cup joint ring (19) sliding sleeve establishes in spliced tube (11) outer wall lower part edge, and cup joint ring (19) outer wall and polylith connecting plate (7) keep away from between the one end of spliced tube (10) all rotate and be connected with connecting rod (9), and cup joint between ring (19) and spliced tube (11) are equipped with stop gear.

4. A self-changing tool polishing machine as set forth in claim 3, wherein: the transmission assembly comprises two L-shaped fixing blocks (2) and two toothed wheels (1), wherein the two L-shaped fixing blocks (2) are symmetrically and fixedly connected to the upper end of the square shell (12), a motor (3) is fixedly connected between the two L-shaped fixing blocks (2), the two toothed wheels (1) are respectively and fixedly connected to the top ends of the threaded columns (14) and the output shaft ends of the motor (3), and the two toothed wheels (1) are meshed with each other.

5. A self-changing tool polishing machine as set forth in claim 3, wherein: the utility model provides a stop gear includes four hole grooves (15) and two U-shaped section of thick bamboo (33), two U-shaped section of thick bamboo (33) symmetry fixed connection is in the upper end of cup jointing ring (19), and the inner wall of two U-shaped section of thick bamboo (33) all slides and alternates spacing post (22), two all fixed cover is equipped with solid fixed ring (21) on the outer wall of spacing post (22), two gu fixed ring (21) respectively with the inner wall of two U-shaped section of thick bamboo (33) between equal fixedly connected with first spring (17), two first spring (17) are established at the outer wall of two spacing posts (22) respectively to the sliding sleeve, two the one end of spacing post (22) all is hemispherical, and the equal fixedly connected with spacing dish (16) of the other end of two spacing posts (22), two spacing dish (16) laminating respectively in the tip of two U-shaped section of thick bamboo (33), wherein two hole grooves (15) symmetry are seted up in the outer wall upper portion edge of concatenation pipe (11), two hole grooves (15) are located two hemisphere portions of two under the cooperation of two groove (15) and two hemisphere portions of the outer wall of two groove (15) are located respectively.

6. The automatic tool changing polisher according to claim 1, wherein: the plastic polishing mechanism comprises a connecting disc (23), the connecting disc (23) is fixedly connected to the bottom end of a connecting column (10), the lower end of the connecting disc (23) is fixedly connected with a fixing column (28), the lower end of the fixing column (28) is fixedly connected with a polishing disc (24), the outer wall of the fixing column (28) is fixedly connected with a plurality of second springs (27) around the central annular array of the fixing column, one ends of the second springs (27) far away from the fixing column (28) are fixedly connected with elastic polishing belts (25) together, the plurality of second springs (27) are respectively corresponding to a plurality of cambered polishing blocks (8), the elastic polishing belts (25) are attached between the cambered polishing blocks (8), the elastic polishing belts (25) are in an extruded variable shape, and a telescopic polishing mechanism is arranged between the polishing disc (24) and the elastic polishing belts (25).

7. The automatic tool changing polisher according to claim 6, wherein: the telescopic polishing mechanism comprises a plurality of U-shaped grooves (29), the U-shaped grooves (29) are formed in the outer wall of the polishing disc (24) around the central annular array of the polishing disc (24), guide clamping grooves (30) are formed in the inner walls of the U-shaped grooves (29), U-shaped polishing blocks (26) are formed in the inner walls of the U-shaped grooves (29) in a shape matching mode, one ends of the U-shaped polishing blocks (26) are fixedly connected to the edge of the lower portion of the inner surface of the elastic polishing belt (25), guide clamping blocks (31) are fixedly connected to the outer walls of the U-shaped polishing blocks (26), the guide clamping blocks (31) are in sliding fit with the guide clamping grooves (30) respectively, and the U-shaped polishing blocks (26) are located under the second springs (27).