CN116197781B

CN116197781B - Inner arc-shaped surface polishing machine tool for arc-shaped new material

Info

Publication number: CN116197781B
Application number: CN202310483343.7A
Authority: CN
Inventors: 张楠; 赵嘉伟; 郭世杰; 乔冠; 孔浩强; 马林
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-07-04
Anticipated expiration: 2043-05-04
Also published as: CN116197781A

Abstract

The invention discloses an inner arc surface polishing machine tool with an arc new material, which comprises a bottom plate, a waste box, a workpiece support, a workpiece, a polishing support and a polishing assembly, wherein the workpiece support is fixedly connected to the bottom plate; the polishing assembly is arranged, so that the inner wall surface of the arc-shaped workpiece can be better attached; the telescopic baffle is arranged, so that the splashing of scraps and sewage is avoided; the clamping mechanism is arranged, the workpiece can be loosened or clamped only by putting and pressing the workpiece, the workpiece is convenient to mount and dismount, and the time is saved.

Description

Inner arc-shaped surface polishing machine tool for arc-shaped new material

Technical Field

The invention relates to the field of new materials, in particular to an inner arc-shaped surface polishing machine tool for an arc-shaped new material.

Background

New materials are an important material in recent years, and are used more and more widely, for example: titanium alloy, damage tolerance type titanium and the like, and the novel material is widely applied to aerospace industry. Also, various processing tools for new materials are produced and optimized, and a special polishing machine tool is required to process a workpiece which is made of the new materials and has an arc shape.

Most of the existing machine tools can polish planes, and arc surfaces, particularly arc concave surfaces, are difficult to polish because of special structures, and grinding wheels on common machine tools are difficult to attach; in the process of polishing the arc-shaped concave surface, scraps and sewage are easy to splash along the arc-shaped concave surface, so that environmental pollution of a factory is caused, and the health of workers is endangered; the arc concave surface is difficult to clamp, and multiple fixing is usually needed to fix the arc concave surface, so that the arc concave surface is time-consuming and labor-consuming to install.

Disclosure of Invention

The invention aims to provide an inner arc surface polishing machine tool with an arc new material, which solves the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an arc new material's inner arc face lathe of polishing, includes bottom plate, waste bin, work piece support, work piece, still includes the support of polishing, polishing subassembly, fixedly connected with work piece support on the bottom plate is provided with clamping mechanism in the work piece support, clamping mechanism centre gripping work piece, the work piece below is provided with waste bin, waste bin one side sliding connection telescopic baffle prevents that piece and sewage from splashing, waste bin places on the bottom plate, the work piece the place ahead is provided with the polishing subassembly, be provided with the emery wheel on the polishing subassembly, the emery wheel is half arc, the polishing subassembly drives the emery wheel and carries out each angle rotation, the polishing subassembly is fixed on the support of polishing, the support of polishing slides on the bottom plate;

the grinding assembly comprises a first motor and a first rotating shaft, wherein the first motor is fixed on a first motor support, the first motor support is fixed at the upper end of a grinding support, one end of the first motor is fixedly connected with the first rotating shaft, the other end of the first rotating shaft penetrates through the upper end of the first shaft support and one end of a second motor support to be fixedly connected, the lower end of the first shaft support is fixed at the upper end of the grinding support, the second motor support is fixedly connected with a second motor, the second motor is fixedly connected with a second driving gear, the second driving gear is meshed with a second driven gear, the second driven gear is fixed on the second rotating shaft, the second rotating shaft is rotationally connected with the middle of the second motor support, two ends of the second rotating shaft are fixed on a third fixed gear, a third sliding groove is formed in the third fixed gear, a third sliding block is fixedly connected with a third support, the third motor is fixedly connected with the third support, the third motor is fixedly connected with a third rotating gear, the third rotating gear is meshed with the third fixed gear, one end of a third support is fixedly connected with a grinding wheel arm, and the other end of the grinding wheel arm is provided with a third grinding wheel and the center is consistent with the grinding wheel.

Preferably, the lower end of the polishing support is fixedly connected with a ball screw sliding block, the ball screw sliding block slides in a bottom plate sliding groove, the ball screw sliding block is connected with a ball screw through a ball screw pair, the ball screw rotates in the bottom plate sliding groove, the bottom plate sliding groove is arranged on the bottom plate, one end of the ball screw is fixedly connected with a ball screw motor, and the ball screw motor is fixed in the bottom plate.

Preferably, the inside boss that is provided with of waste bin has placed the filter screen on the boss for separation piece and sewage, the inside rack spout that is provided with of waste bin bottom plate, sliding connection promotes the one end of rack in the rack spout, promotes the other end of rack and stretches out the waste bin and can contact with the support of polishing, promotes rack and lifting gear meshing, lifting gear fixed connection lifting screw's one end, lifting screw's the other end passes through ball screw pair connection expansion baffle middle part, control expansion baffle's flexible, lifting screw and expansion baffle all set up inside waste bin front end slope wallboard, expansion baffle can slide inside waste bin front end slope wallboard, be provided with rack spring in the rack spout, rack spring's one end is fixed in the rack spout, and the other end is fixed on promoting the rack.

Preferably, the clamping mechanism comprises a clamp, a push block and a fixed shaft, one end of the fixed shaft is fixed on the inner side wall surface of the workpiece support, the middle part of the fixed shaft is rotationally connected with the push block and a rotation limiting sleeve, a reset spring is arranged on the fixed shaft, one end of the reset spring is fixed on the inner side wall surface of the workpiece support, the other end of the reset spring is fixedly connected with one surface of the push block, the other surface of the push block is fixedly connected with one end of the rotation limiting sleeve, the rotation limiting sleeve rotates on the fixed shaft, the front end of the fixed shaft is sleeved with a sliding limiting sleeve, one end of the sliding limiting sleeve can be in contact with the rotation limiting sleeve for buckling, the other end of the sliding limiting sleeve is fixedly connected with a workpiece support disc, the arc bottom surface of a workpiece is placed in the workpiece support disc, the other end of the workpiece is clamped by one ends of a plurality of clamps, the other ends of the clamps are tightly attached to the push blocks, the clamps are L-shaped rods, the middle parts of the clamps are hinged in the workpiece support through fulcrum shafts, one ends of the clamps, which are close to the push blocks, are fixedly connected with one ends of clamp springs, the other ends of the clamp springs are fixed on the inner side walls of the workpiece support, two positioning blocks are symmetrically arranged between the rotation limiting sleeve and the sliding limiting sleeve and are fixed on the outer wall surfaces of the fixed shafts, the positioning blocks are tightly attached to the pushing guide blocks, the upper ends of the pushing guide blocks are fixed on the sliding limiting sleeve, the lower ends of the pushing guide blocks are in contact with the rotation limiting sleeve, the positioning blocks can be inserted into the first positioning block groove or the second positioning block groove, and the first positioning block groove and the second positioning block groove are arranged on the rotation limiting sleeve. The lower ends of the positioning block and the pushing guide block are inclined planes, and the second groove of the positioning block is also provided with the inclined planes matched with the inclined planes.

The end part of the fixed shaft connected with the sliding limiting sleeve is provided with a limiting sliding groove, and a lug matched with the limiting sliding groove for sliding is arranged in the sliding limiting sleeve.

Preferably, a locking ejector pin is arranged between the ejector block and the inner side wall surface of the workpiece support, the center of the upper end of the locking ejector pin is fixedly connected with the lower end of an ejector pin screw, and the upper end of the ejector pin screw penetrates through the workpiece support and is in threaded connection with the workpiece support.

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

the grinding assembly is arranged, and can rotate at various angles so as to grind the arc-shaped inner wall, and the grinding wheel is semi-arc-shaped and can be better attached to the inner wall surface of the arc-shaped workpiece;

the telescopic baffle is arranged, and the polishing support pushes the pushing rack along with the approaching of the polishing support, so that the telescopic baffle is lifted, and therefore, the splashing of scraps and sewage is avoided, the clean and tidy factory environment is ensured, the physical health of workers is ensured, and when the polishing support is far away, the telescopic baffle is lowered, the influence on a polishing assembly and the collision with the polishing assembly are avoided, so that the protection effect on the polishing assembly is realized;

the clamping mechanism is arranged, the workpiece can be clamped only by putting and pressing the workpiece into the first groove of the positioning block, and when the workpiece needs to be taken down, the workpiece is pressed again, so that the clamp can loosen the workpiece by inserting the positioning block into the second groove of the positioning block, the workpiece is convenient to mount and dismount, and the time is saved.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the construction of the sanding assembly of the present invention;

FIG. 4 is a schematic view of the internal structure of the bottom plate chute of the present invention;

FIG. 5 is a schematic diagram of the main structure of the waste bin of the invention;

FIG. 6 is a schematic view of a clamping mechanism according to the present invention;

FIG. 7 is a schematic view showing the structural states of the rotation stop collar, the sliding stop collar and the locking knock pin when the clamping mechanism of the present invention clamps a workpiece;

FIG. 8 is a schematic view of the rotational stop collar, sliding stop collar and locking pin configuration of the clamping mechanism of the present invention when releasing a workpiece;

FIG. 9 is a schematic cross-sectional view of the stationary shaft of the present invention in connection with the rotation stop collar and the sliding stop collar;

fig. 10 is a schematic structural view of the fixing shaft of the present invention.

In the figure: 1. a base plate, 101, a base plate slide groove, 2, a grinding support, 201, a ball screw slider, 202, a ball screw, 203, a ball screw motor, 3, a grinding assembly, 301, a first motor, 302, a first motor support, 303, a first shaft support, 304, a first rotation shaft, 305, a second motor support, 306, a second motor, 307, a second driving gear, 308, a second driven gear, 309, a second rotation shaft, 310, a third fixed gear, 311, a third slide groove, 312, a third slider, 313, a third support, 314, a third rotation gear, 315, a third motor, 316, a grinding wheel arm, 317, a grinding wheel, 4, a waste bin, 401, a filter screen, 402, a pushing rack, 403, a lifting gear, 404, a lifting screw rod, 405, a telescopic baffle, 406, a rack chute, 407, a rack spring, 5, a workpiece support, 501, a clamp, 502, a pushing block, 503, a fixed shaft, 504, a return spring, 505, a rotation limiting sleeve, 506, a sliding limiting sleeve, 507, a workpiece support disc, 508, a positioning block, 509, a positioning block number one groove, 510, a positioning block number two groove, 511, a pushing guide block, 512, a clamp spring, 513, a locking ejector pin, 514, an ejector pin screw, 515, a limiting sliding groove, 516, a fulcrum shaft, 6 and a workpiece.

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.

Referring to fig. 1-10, the present invention provides a technical solution: the utility model provides an arc new material's inner arc face lathe of polishing, including bottom plate 1, waste bin 4, work piece support 5, work piece 6, still include the support 2 of polishing, polishing subassembly 3, fixedly connected work piece support 5 on the bottom plate 1, be provided with clamping mechanism in the work piece support 5, clamping mechanism centre gripping work piece 6, work piece 6 below is provided with waste bin 4, waste bin 4 one side sliding connection telescopic baffle 405, prevent piece and sewage splash, waste bin 4 is placed on bottom plate 1, work piece 6 the place ahead is provided with polishing subassembly 3, be provided with emery wheel 317 on the polishing subassembly 3, emery wheel 317 is half arc, polishing subassembly 3 drives emery wheel 317 and carries out each angle rotation, polishing subassembly 3 is fixed on support 2 of polishing, support 2 slides on bottom plate 1; the workpiece 6 is placed in the workpiece support 5, clamped by the clamping mechanism, then the polishing support 2 is close to the workpiece 6, the polishing support 2 drives the polishing assembly 3 to be close to the workpiece 6 for polishing, and the telescopic baffle 405 is lifted in the process that the polishing support 2 is close to the workpiece.

The polishing assembly 3 comprises a first motor 301 and a first rotating shaft 304, the first motor 301 is fixed on a first motor support 302, the first motor support 302 is fixed at the upper end of the polishing support 2, the first motor 301 is fixedly connected with one end of the first rotating shaft 304, the other end of the first rotating shaft 304 penetrates through the upper end of the first shaft support 303 and is fixedly connected with one end of a second motor support 305, the lower end of the first shaft support 303 is fixed at the upper end of the polishing support 2, the second motor support 305 is fixedly connected with a second motor 306, the second motor 306 is fixedly connected with a second driving gear 307, the second driving gear 307 is meshed with a second driven gear 308, the second driven gear 308 is fixed on a second rotating shaft 309, the second rotating shaft 309 is rotatably connected with the middle part of the second motor support 305, the two ends of the second rotating shaft 309 are fixed on a third fixed gear 310, a third sliding groove 311 is arranged on the third fixed gear 310, the third sliding block 312 is fixedly connected with a third support 313, the third motor 315 is fixedly connected with the third sliding block 313, the third sliding block 315 is fixedly connected with the third support 313, the third motor 315 is meshed with the third motor 315, the third rotating gear 314 is fixedly connected with the third rotating gear 314, the third support 314 is fixedly connected with the third grinding wheel 313, and the other end of the third grinding wheel is fixedly connected with the third support 313 is fixedly connected with the grinding wheel. When the first motor 301 is started, the first motor 301 drives the first rotating shaft 304 to rotate, the first rotating shaft 304 drives the second motor support 305 to rotate, the second motor support 305 drives the second rotating shaft 309 to vertically and axially rotate, and the second rotating shaft 309 drives the third fixed gear 310 to rotate, so that the grinding wheel 317 is driven to move; starting the second motor 306, wherein the second motor 306 drives the second driving gear 307 to rotate, the second driving gear 307 drives the second rotating shaft 309 to radially rotate, and the second rotating shaft 309 drives the third fixed gear 310 to rotate, so that the grinding wheel 317 is driven to move; starting a third motor 315, wherein the third motor 315 drives a third rotating gear 314 to rotate, the third rotating gear 314 rotates along the outer ring of the third fixed gear 310, the third rotating gear 314 drives a third support 313 to move, the third support 313 drives a third sliding block 312 to slide in a third sliding groove 311, the third support 313 drives a grinding wheel arm 316 to move, and the grinding wheel arm 316 drives a grinding wheel 317 to move; the corresponding motor is started according to the place needing polishing, so that the inside of the workpiece 6 can be polished in all directions.

The lower end of the polishing support 2 is fixedly connected with a ball screw sliding block 201, the ball screw sliding block 201 slides in the bottom plate sliding groove 101, the ball screw sliding block 201 is connected with a ball screw 202 through a ball screw pair, the ball screw 202 rotates in the bottom plate sliding groove 101, the bottom plate sliding groove 101 is arranged on the bottom plate 1, one end of the ball screw 202 is fixedly connected with a ball screw motor 203, and the ball screw motor 203 is fixed in the bottom plate 1. The ball screw motor 203 is started, the ball screw motor 203 drives the ball screw 202 to rotate, the ball screw 202 drives the ball screw sliding block 201 to move, the ball screw sliding block 201 drives the polishing support 2 to move, and the polishing support 2 drives the polishing assembly 3 to move.

The inside boss that is provided with of waste bin 4, filter screen 401 has been placed on the boss, be used for separating piece and sewage, waste bin 4 bottom plate inside is provided with rack chute 406, sliding connection promotes the one end of rack 402 in the rack chute 406, promote the other end of rack 402 to stretch out waste bin 4 and can contact with polishing support 2, promote rack 402 and lifting gear 403 meshing, lifting gear 403 fixed connection lifting screw 404's one end, lifting screw 404's the other end passes through ball screw pair and connects flexible baffle 405 middle part, control flexible baffle 405's flexible, lifting screw 404 and flexible baffle 405 all set up inside waste bin 4 front end slope wallboard, flexible baffle 405 can slide in waste bin 4 front end slope wallboard inside, be provided with rack spring 407 in the rack chute 406, rack spring 407's one end is fixed in rack chute 406, the other end is fixed on promoting rack 402. When the polishing support 2 contacts with the pushing rack 402, the polishing support 2 pushes the pushing rack 402 to slide in the rack sliding groove 406, the lifting gear 403 is driven to rotate while the rack spring 407 is compressed, the lifting gear 403 drives the lifting screw 404 to rotate, the lifting screw 404 rotates to enable the telescopic baffle 405 to extend, when the polishing support 2 is far away, the pushing rack 402 slides outwards under the action of the rack spring 407, and the pushing rack 402 drives the lifting gear 403 to reversely rotate, so that the telescopic baffle 405 descends.

The clamping mechanism comprises a clamp 501, a push block 502 and a fixed shaft 503, one end of the fixed shaft 503 is fixed on the inner side wall surface of a workpiece support 5, the middle part of the fixed shaft 503 is rotationally connected with the push block 502 and a rotation limiting sleeve 505, a reset spring 504 is arranged on the fixed shaft 503, one end of the reset spring 504 is fixed on the inner side wall surface of the workpiece support 5, the other end is fixedly connected with one surface of the push block 502, the other surface of the push block 502 is fixedly connected with one end of a rotation limiting sleeve 505, the rotation limiting sleeve 505 rotates on the fixed shaft 503, the front end of the fixed shaft 503 is sleeved with a sliding limiting sleeve 506, the sliding limiting sleeve 506 axially slides on the fixed shaft 503, and the axial sliding is specifically as follows: a limiting sliding groove 515 (as shown in fig. 10) is formed at the end part of the fixed shaft 503 connected with the sliding limiting sleeve 506, and a protruding block which slides in cooperation with the limiting sliding groove 515 is arranged in the sliding limiting sleeve 506; one end of the sliding limiting sleeve 506 can be in contact with the rotating limiting sleeve 505 for buckling, the other end of the sliding limiting sleeve 506 is fixedly connected with the workpiece supporting disc 507, the arc-shaped bottom surface of the workpiece 6 is placed in the workpiece supporting disc 507, the other end of the workpiece 6 is clamped by one ends of the clamps 501, the other ends of the clamps 501 are tightly attached to the push block 502, the clamps 501 are L-shaped rods, the middle parts of the clamps 501 are hinged in the workpiece support 5 through fulcrum shafts 516, one ends of the clamps 501 close to the push block 502 are fixedly connected with one ends of clamp springs 512, the other ends of the clamp springs 512 are fixed on the inner side walls of the workpiece support 5, two positioning blocks 508 are symmetrically arranged between the rotating limiting sleeve 505 and the sliding limiting sleeve 506, the two positioning blocks 508 are fixed on the fixed shaft 503, the positioning blocks 508 are tightly attached to the pushing guide blocks 511, the upper ends of the pushing guide blocks 511 are fixed on the sliding limiting sleeve 506, the lower ends of the positioning blocks are in contact with the rotating limiting sleeve 505, the positioning blocks 508 can be inserted into the first positioning block grooves 509 or the second positioning block grooves 510, the first positioning blocks 509 and the second positioning blocks 510 are arranged on the rotating limiting sleeve 505. The lower ends of the positioning block 508 and the pushing guide block 511 are inclined planes, and the second positioning block groove 510 is also provided with an inclined plane matched with the inclined plane. A locking ejector pin 513 is arranged between the pushing block 502 and the inner side wall surface of the workpiece support 5, the center of the upper end of the locking ejector pin 513 is fixedly connected with the lower end of an ejector pin screw 514, and the upper end of the ejector pin screw 514 penetrates through the workpiece support 5 and is in threaded connection with the workpiece support 5. When the workpiece 6 needs to be clamped, the workpiece 6 is put in and pressed, the workpiece 6 drives the workpiece supporting disc 507 to extrude inwards, the workpiece supporting disc 507 drives the sliding limiting sleeve 506 to slide on the fixed shaft 503, the sliding limiting sleeve 506 drives the pushing guide block 511 to slide, the pushing guide block 511 pushes the rotating limiting sleeve 505 to slide on the fixed shaft 503, the side wall of the second positioning block groove 510 is attached to the side wall of the first positioning block 508, the rotating limiting sleeve 505 can only slide on the fixed shaft 503 and cannot rotate, the pushing block 502 and the rotating limiting sleeve 505 synchronously move in the same way, the pushing block 502 compresses the reset spring 504, when the rotating limiting sleeve 505 is pushed until the side wall of the first positioning block 508 is not attached to the side wall of the second positioning block groove 510, the pushing guide block 511 continues to push and slide on the inclined surface of the second positioning block groove 510, forcing the rotation limiting sleeve 505 to rotate, enabling the first positioning block groove 509 of the rotation limiting sleeve 505 to rotate to the position where the first positioning block 508 enters the first positioning block groove 509, then loosening hands, enabling the reset spring 504 to push the push block 502 to move, enabling the push block 502 to drive the rotation limiting sleeve 505 and the sliding limiting sleeve 506 to slide and reset on the fixed shaft 503, simultaneously enabling the push block 502 to drive the tail end of the clamp 501 to open, enabling the front end of the clamp 501 to clamp the workpiece 6 and compress the clamp spring 512, at the moment, enabling the workpiece to be clamped firmly, enabling the rotation top pin screw 514 and the top pin screw 514 to drive the locking top pin 513, enabling the long edge of the locking top pin 513 to prop between the push block 502 and the inner side wall surface of the workpiece support 5, preventing the push block 502 from sliding, enabling the workpiece 6 to be fixed (as shown in fig. 7), and polishing;

when the workpiece 6 needs to be loosened, the locking top pin 513 is rotated by ninety degrees through the top pin screw 514, the workpiece 6 is pressed again, the workpiece 6 drives the workpiece support disc 507 to extrude, the workpiece support disc 507 drives the sliding limit sleeve 506 to extrude, the sliding limit sleeve 506 drives the pushing guide block 511 to extrude the rotating limit sleeve 505 to slide on the fixed shaft 503, and similarly, the side wall of the first positioning block groove 509 is attached to the side wall of the positioning block 508, at the moment, the rotating limit sleeve 505 can only slide and cannot rotate, the pushing block 502 and the rotating limit sleeve 505 synchronously move, the pushing block 502 compresses the reset spring 504, when the rotating limit sleeve 505 is pushed to the side wall of the first positioning block groove 509 and is not attached to the side wall of the positioning block 508, at the moment, the top of the pushing guide block 511 and the side wall of the second positioning block groove 510 are spaced, the pushing guide block 511 continuously pushes the inclined surface of the second positioning block groove 510, the rotating limit sleeve 505 is enabled to rotate, the positioning block 508 falls into the second positioning block groove 510, and then the reset spring 504 pushes the pushing block 502 and the rotating limit sleeve 505 to reset, (as shown in fig. 8), at the moment, the position of the pushing block 502 can only slide, compared with the clamping end, the clamping end of the clamping block 502 can be closed, and the clamping end of the clamping block 501 can be pulled down, namely the clamping end 6 can be loosened, and the clamping end is moved down, and the clamping end is enabled to be under the clamping end 6.

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

1. The utility model provides an inner arc face lathe of polishing of arc new material, includes bottom plate (1), waste bin (4), work piece support (5), work piece (6), its characterized in that: the polishing device comprises a base plate (1), and is characterized by further comprising a polishing support (2) and a polishing assembly (3), wherein the base plate (1) is fixedly connected with a workpiece support (5), a clamping mechanism is arranged in the workpiece support (5), a workpiece (6) is clamped by the clamping mechanism, a waste box (4) is arranged below the workpiece (6), one side of the waste box (4) is connected with a telescopic baffle (405) in a sliding manner, fragments and sewage are prevented from splashing, the waste box (4) is placed on the base plate (1), the polishing assembly (3) is arranged in front of the workpiece (6), a grinding wheel (317) is arranged on the polishing assembly (3), the grinding wheel (317) is semi-arc-shaped, the polishing assembly (3) drives the grinding wheel (317) to rotate at various angles, the polishing assembly (3) is fixed on the polishing support (2), and the polishing support (2) slides on the base plate (1);

the polishing assembly (3) comprises a first motor (301) and a first rotating shaft (304), the first motor (301) is fixed on a first motor support (302), the first motor support (302) is fixed at the upper end of a polishing support (2), the first motor (301) is fixedly connected with one end of the first rotating shaft (304), the other end of the first rotating shaft (304) penetrates through the upper end of the first shaft support (303) and is fixedly connected with one end of a second motor support (305), the lower end of the first shaft support (303) is fixed at the upper end of the polishing support (2), the second motor support (305) is fixedly connected with a second motor (306), the second motor (306) is fixedly connected with a second driving gear (307), the second driving gear (307) is meshed with a second driven gear (308), the second driven gear (308) is fixed on a second rotating shaft (309), two ends of the second rotating shaft (309) are fixedly connected with the middle of the second motor support (305), two ends of the second rotating shaft (309) are fixedly connected with a third fixed gear (310), the third motor support (310) is fixedly connected with a third fixed sliding chute (313), the third fixed chute (311) is connected with the third fixed chute (313), the third motor (315) is fixedly connected with a third rotating gear (314), the third rotating gear (314) is meshed with a third fixed gear (310), one end of a grinding wheel arm (316) is fixedly connected to the third bracket (313), a grinding wheel (317) is arranged at the other end of the grinding wheel arm (316), and the center of the grinding wheel (317) is consistent with that of the third fixed gear (310);

the clamping mechanism comprises a clamp (501), a push block (502) and a fixed shaft (503), one end of the fixed shaft (503) is fixed on the inner side wall surface of a workpiece support (5), the middle part of the fixed shaft (503) is rotationally connected with the push block (502) and a rotation limiting sleeve (505), a return spring (504) is arranged on the fixed shaft (503), one end of the return spring (504) is fixed on the inner side wall surface of the workpiece support (5), the other end of the return spring is fixedly connected with one surface of the push block (502), the other surface of the push block (502) is fixedly connected with one end of a rotation limiting sleeve (505), the rotation limiting sleeve (505) rotates on the fixed shaft (503), the front end of the fixed shaft (503) is sleeved with a sliding limiting sleeve (506), one end of the sliding limiting sleeve (506) can be in contact with the rotation limiting sleeve (505) for buckling connection, the other end of the sliding limiting sleeve (506) is fixedly connected with a workpiece supporting disc (507), the other end of the workpiece supporting disc (507) is placed on the arc bottom surface of the workpiece (6), the other end of the workpiece (6) is tightly clamped by one ends of the clamps (501), the other ends of the clamps (501) are tightly clamped by the clamp rods (501) in the middle part (516) of the clamp (5), one end of a clamp (501) close to a push block (502) is fixedly connected with one end of a clamp spring (512), the other end of the clamp spring (512) is fixed on the inner side wall of a workpiece support (5), two positioning blocks (508) are symmetrically arranged between a rotation limiting sleeve (505) and a sliding limiting sleeve (506), the two positioning blocks (508) are both fixed on the outer wall surface of a fixed shaft (503), the positioning blocks (508) are tightly attached to a pushing guide block (511), the upper end of the pushing guide block (511) is fixed on the sliding limiting sleeve (506), the lower end of the pushing guide block is in contact with the rotation limiting sleeve (505), the positioning blocks (508) can be inserted into a first positioning block groove (509) or a second positioning block groove (510), and the first positioning block groove (509) and the second positioning block groove (510) are arranged on the rotation limiting sleeve (505); the lower ends of the positioning block (508) and the pushing guide block (511) are inclined planes, and the second positioning block groove (510) is also provided with an inclined plane matched with the inclined plane;

the end part of the fixed shaft (503) connected with the sliding limiting sleeve (506) is provided with a limiting sliding groove (515), and a bump matched with the limiting sliding groove (515) for sliding is arranged in the sliding limiting sleeve (506).

2. The inner arc surface grinding machine tool of the new arc material according to claim 1, wherein: the polishing device is characterized in that the lower end of the polishing support (2) is fixedly connected with a ball screw sliding block (201), the ball screw sliding block (201) slides in a bottom plate sliding groove (101), the ball screw sliding block (201) is connected with a ball screw (202) through a ball screw pair, the ball screw (202) rotates in the bottom plate sliding groove (101), the bottom plate sliding groove (101) is arranged on the bottom plate (1), one end of the ball screw (202) is fixedly connected with a ball screw motor (203), and the ball screw motor (203) is fixed in the bottom plate (1).

3. The inner arc surface grinding machine tool of the new arc material according to claim 1, wherein: the utility model discloses a waste bin, including waste bin (4), baffle, ball screw pair, flexible baffle (405) are connected to the other end of lift lead screw (404), and flexible baffle (405) are connected through ball screw pair middle part, control flexible baffle (405) flexible, lift lead screw (404) and flexible baffle (405) all set up inside waste bin (4) front end slope wallboard, flexible baffle (405) can be in waste bin (4) front end slope wallboard inside slip, be provided with rack spring (407) in rack chute (406) and one end of rack spring (407) is fixed in rack chute (406), the other end is fixed on pushing rack (402) to the other end outside waste bin (4) is provided with rack spring (407) outside and can contact with polishing support (2), promote rack (402) with lifting gear (403) meshing.

4. The inner arc surface grinding machine tool of the new arc material according to claim 1, wherein: a locking ejector pin (513) is arranged between the pushing block (502) and the inner side wall surface of the workpiece support (5), the center of the upper end of the locking ejector pin (513) is fixedly connected with the lower end of an ejector pin screw rod (514), and the upper end of the ejector pin screw rod (514) penetrates through the workpiece support (5) and is in threaded connection with the workpiece support (5).