CN111906636A

CN111906636A - Mechanical polishing equipment convenient for limiting workpiece

Info

Publication number: CN111906636A
Application number: CN202010785556.1A
Authority: CN
Inventors: 郑少伟
Original assignee: Individual
Current assignee: Shenzhen Ruibangde Precision Parts Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2020-11-10
Anticipated expiration: 2040-08-06
Also published as: CN111906636B

Abstract

The invention relates to the technical field of machining, in particular to mechanical polishing equipment convenient for limiting a workpiece, which comprises a placing table, a support, a polishing mechanism, a limiting mechanism, a stretching mechanism, a cleaning mechanism and a containing mechanism, wherein the placing table is arranged on the support; when the limiting mechanism is used, the limiting mechanism is arranged inside the polishing mechanism, and the machined surfaces with different heights on some irregular mechanical workpieces are conveniently limited simultaneously through the corresponding gear rack transmission structure and the lever principle, so that the mechanical workpieces can be better limited, and the polishing process is more convenient; the stretching mechanism is arranged on one side of the polishing mechanism, so that the arrangement surface of the workpiece can be conveniently adjusted, the stretching mechanism is conveniently suitable for processing workpieces with different sizes, and the processing of the workpieces with larger sizes is more convenient; inside locating grinding machanism's bottom with clean mechanism, convenient a great deal of dust piece that produces when using on grinding machanism cleans for the process of polishing is more convenient, and is also safer to the operator simultaneously.

Description

Mechanical polishing equipment convenient for limiting workpiece

Technical Field

The invention relates to the technical field of machining, in particular to mechanical polishing equipment convenient for limiting a workpiece.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. The difference in the machining method can be divided into cutting machining and pressing machining. In the machining process, grinding is an important process, so-called grinding is one of surface modification technologies, generally referring to a machining method for changing the physical properties of the material surface by friction with the aid of a rough object (sand paper containing particles with higher hardness, etc.), and the main purpose is to obtain a specific surface roughness to meet certain requirements of a specific mechanical workpiece.

However, in the actual use process, when the workpiece is polished, the workpiece is usually required to be correspondingly limited, so as to facilitate better operation of the workpiece, but due to various mechanical workpieces, some mechanical workpieces with irregular shapes and different processing surfaces are often generated, and when the mechanical workpieces are limited, the mechanical workpieces are inconvenient; meanwhile, the sizes of various mechanical workpieces are different, most of the traditional operation surfaces are fixed, and the traditional operation surfaces are difficult to adapt to some workpieces with larger sizes; in addition, during the grinding process, a lot of dust is inevitably generated on the operation surface, and the grinding process and the human body are affected.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides mechanical polishing equipment convenient for limiting a workpiece.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an equipment of polishing mechanically convenient to it is spacing to work piece, includes arrangement table, support, grinding machanism, stop gear, tension mechanism, clean mechanism and receiving mechanism for other mechanisms are settled fixedly the bottom of arrangement table is fixed with and is used for playing the supporting role to whole equipment the support, one side of arrangement table top is equipped with and is used for polishing the work piece grinding machanism, grinding machanism is last to be equipped with and to be used for carrying on spacingly by the work piece of polishing stop gear, the arrangement table top deviates from one side of grinding machanism is equipped with and is used for adjusting operation platform tension mechanism, grinding machanism's bottom is inside to be equipped with and to be used for carrying on cleanly to operation platform clean mechanism, the inside of arrangement table one side is equipped with and is used for depositing some operating instrument receiving mechanism.

Specifically, grinding machanism includes mount, knob, operation panel, screw rod, connecting rod and polisher main part, one side at mount table top is fixed with the mount, the middle part of mount one side is equipped with the knob, one side of knob is connected with the screw rod, the screw rod rotate connect in the inner wall of mount, the one end of connecting rod block in the inner wall of mount, just screw rod threaded connection in the inside of connecting rod, the connecting rod deviates from the one end of mount is installed the polisher main part, the bottom of mount one side is fixed with the operation panel.

Specifically, stop gear includes regulating block, cylinder, pinion rack, spacing frame, telescopic link, first gear, stopper and damping piece, the middle part on mount top is equipped with the regulating block, the both sides that the regulating block carried on the back mutually are connected with one respectively the damping piece, the damping piece block in the inside of mount, install the top of regulating block the cylinder, the bottom of cylinder is connected with the telescopic link, the bottom of telescopic link is link up the regulating block just rotates and is connected with first gear, the both sides of regulating block bottom are fixed with one respectively spacing frame, two the inside block respectively of the relative one side of spacing frame has a pinion rack, first gear is with two the pinion rack meshes mutually, and the bottom of stating the pinion rack is fixed with the stopper.

Specifically, the stretching mechanism comprises a protective plate, a rotary table, a second gear, a third gear, a rack and a slide block, the protection plate is arranged at one side of the fixing frame at the top of the placing table, one end of the operating table, which is far away from the fixing frame, is clamped inside the protection plate, the rotary table is arranged at one side of the protection plate at the top of the placing table, the bottom end of the rotary table extends into the placing table and is connected with the second gear, one third gear is engaged with each of both sides of the second gear, and the third gear rotates inside the mounting table, one side of the third gear, which is far away from the second gear, is engaged with the rack, one end of the rack is fixed with the sliding block, the slider is clamped in the installation table, and the top of the slider is fixed to the bottom of the protection plate.

Specifically, clean mechanism includes fixed plate, grab handle, clean piece, guide bar and spring, the mount is equipped with on being close to the inner wall of bottom the fixed plate, one side of fixed plate is fixed in clean piece, clean piece block fit in the inside of mount, the top surface middle part of clean piece is fixed with the grab handle, clean piece deviates from one side of fixed plate is fixed with two the spring, the other end of spring is fixed in the inner wall of mount, just the spring twines in the guide bar, the one end of guide bar is fixed in on the clean piece.

Specifically, the accommodating mechanism comprises a plurality of baffles, a guide groove, a sealing plate and a clamping block, the baffles are arranged in an inner cavity on one side of the placing table, the clamping block is fixed at the bottom on one side of the baffles, the clamping block is clamped in the placing table, the guide groove is respectively arranged on two sides of the inner cavity where the baffles are arranged on the placing table, and the sealing plate is clamped in the inner cavity on one side where the baffles are arranged on the placing table.

The invention has the beneficial effects that:

(1) when the mechanical polishing equipment convenient for limiting the workpiece is used, the limiting mechanism is arranged inside the polishing mechanism, and the machined surfaces with different heights on some irregular mechanical workpieces are limited simultaneously through the corresponding gear and rack transmission structure and the lever principle, so that the mechanical workpieces can be limited better, and the polishing process is more convenient; namely: before polishing, a user can place a mechanical workpiece on an operation table, then the air cylinder is conveniently adjusted through a damping block, then the user can switch on the air cylinder, the air cylinder drives a telescopic rod to stretch up and down, the telescopic rod moves to drive a first gear to move, two toothed plates are driven to move simultaneously along with the movement of a first gear, the toothed plates move to drive a limiting block to move, finally, two limiting blocks are used for extruding and limiting the workpiece, when the processing surfaces on the workpiece are at different heights, when one limiting block firstly collides and extrudes to the processing surface at one end of the workpiece, due to unbalanced stress of the two limiting blocks, the first gear can rotate to drive one limiting block to move simultaneously, the other limiting block moves along with the toothed plate, and finally collides and extrudes to the lower processing surface on the workpiece, so that the processing surfaces at different heights on some irregular mechanical workpieces can be conveniently and simultaneously limited, the mechanical workpiece can be better limited, and the polishing process is more convenient.

(2) When the mechanical polishing equipment convenient for limiting the workpiece is used, the stretching mechanism is arranged on one side of the polishing mechanism, and the arrangement surface of the workpiece is conveniently and correspondingly adjusted through the corresponding gear rack transmission structure, so that the mechanical polishing equipment is conveniently suitable for processing workpieces with different sizes and is more convenient for processing workpieces with larger sizes; namely: when needs are polished to some great work pieces of size and are processed, the user can rotate the carousel manually, the carousel rotates and drives second gear revolve, second gear revolve drives two third gear revolve, then drive two racks and remove thereupon, the rack removes and drives the slider and remove, finally drive the guard plate and remove, relative make the operating platform gradually take out from inside the guard plate, thereby the convenient area of operation to the operating platform adjusts, make seem more convenient when polishing to some great work pieces of size.

(3) When the mechanical polishing equipment convenient for limiting the workpiece is used, the cleaning mechanism is arranged inside the bottom end of the polishing mechanism, and the corresponding spring clamping block structure is matched with the cleaning device, so that a plurality of dust and debris generated on the polishing mechanism during use can be conveniently cleaned, the polishing process is more convenient, and an operator is safer; namely: after polishing, the user can manually hold the grab handle and pull, drives the cleaning block to move, makes the cleaning block clean the operation panel, and the spring is stretched thereupon, makes things convenient for the reseing of cleaning block to a great deal of dust piece that produces when conveniently polishing cleans, makes the process of polishing more convenient, and is also safer to the operator simultaneously.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of the overall structure of a preferred embodiment of the mechanical grinding apparatus of the present invention for facilitating the retention of a workpiece;

FIG. 2 is a schematic view of a connection structure between the grinding mechanism and the limiting mechanism shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the grinding mechanism and the stretching mechanism shown in FIG. 1;

FIG. 4 is a schematic view of the connection structure of the setting table and the stretching mechanism shown in FIG. 1;

FIG. 5 is an enlarged view of the part A shown in FIG. 1;

FIG. 6 is an enlarged view of the structure of the portion B shown in FIG. 1;

fig. 7 is an enlarged view of the structure of the portion C shown in fig. 3.

In the figure: 1. the polishing machine comprises a placing table, 2, a support, 3, a polishing mechanism, 31, a fixing frame, 32, a knob, 33, an operating table, 34, a screw rod, 35, a connecting rod, 36, a polisher body, 4, a limiting mechanism, 41, an adjusting block, 42, an air cylinder, 43, a toothed plate, 44, a limiting frame, 45, an expansion rod, 46, a first gear, 47, a limiting block, 48, a damping block, 5, a stretching mechanism, 51, a protection plate, 52, a rotating disc, 53, a second gear, 54, a third gear, 55, a rack, 56, a sliding block, 6, a cleaning mechanism, 61, a fixing plate, 62, a grab handle, 63, a cleaning block, 64, a guide rod, 65, a spring, 7, a containing mechanism, 71, a baffle plate, 72, a guide groove, 73, a sealing plate, 74 and a fixture block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the mechanical polishing apparatus for limiting a workpiece conveniently according to the present invention includes a mounting table 1, a support 2, a polishing mechanism 3, a limiting mechanism 4, a stretching mechanism 5, a cleaning mechanism 6 and a storage mechanism 7, wherein the support 2 for supporting the entire apparatus is fixed at the bottom of the mounting table 1 for fixing and mounting other mechanisms, the polishing mechanism 3 for polishing the workpiece is arranged at one side of the top of the mounting table 1, the limiting mechanism 4 for limiting the polished workpiece is arranged on the polishing mechanism 3, the stretching mechanism 5 for adjusting the operation platform is arranged at one side of the top of the mounting table 1 away from the polishing mechanism 3, the cleaning mechanism 6 for cleaning the operation platform is arranged inside the bottom end of the polishing mechanism 3, and the storage mechanism 7 for storing some operation tools is arranged inside one side of the mounting table 1.

Specifically, the grinding mechanism 3 includes a fixed frame 31, a knob 32, an operation table 33, a screw 34, a connecting rod 35 and a grinding machine main body 36, the fixed frame 31 is fixed on one side of the top of the installation table 1, the knob 32 is arranged in the middle of one side of the fixed frame 31, the screw 34 is connected to one side of the knob 32, the screw 34 is rotatably connected to the inner wall of the fixed frame 31, one end of the connecting rod 35 is engaged with the inner wall of the fixed frame 31, the screw 34 is threadedly connected to the inside of the connecting rod 35, the grinding machine main body 36 is installed on one end of the connecting rod 35 away from the fixed frame 31, and the operation table 33 is fixed on the bottom of one side of the fixed frame 31; when the grinding machine is used, a user can place a workpiece to be ground on the operating table 33, after the workpiece is limited, the knob 32 can be rotated, the knob 32 rotates to drive the screw 34 to rotate, the screw 34 rotates to enable the connecting rod 35 to continuously move back and forth, the connecting rod 35 moves to drive the grinding machine main body 36 to move along with the screw, and when the grinding machine main body 36 is adjusted to a required proper position, the user can switch on the grinding machine main body 36 to enable the grinding machine main body 36 to limit and grind the corresponding workpiece.

Specifically, the limiting mechanism 4 comprises an adjusting block 41, an air cylinder 42, a toothed plate 43, a limiting frame 44, an expansion rod 45, a first gear 46, a limiting block 47 and a damping block 48, the middle part of the top end of the fixed frame 31 is provided with the adjusting block 41, two opposite sides of the adjusting block 41 are respectively connected with one damping block 48, the damping block 48 is clamped in the fixed frame 31, the air cylinder 42 is installed on the top of the adjusting block 41, the bottom end of the cylinder 42 is connected with the telescopic rod 45, the bottom end of the telescopic rod 45 penetrates through the adjusting block 41 and is rotatably connected with the first gear 46, the two sides of the bottom of the adjusting block 41 are respectively fixed with one limiting frame 44, the insides of the opposite sides of the two limiting frames 44 are respectively clamped with one toothed plate 43, the first gear 46 is meshed with the two toothed plates 43, and the bottom of the toothed plate 43 is fixed with the limiting block 47; when the polishing mechanism is used, the limiting mechanism 4 is arranged inside the polishing mechanism 3, and the machined surfaces with different heights on some irregular mechanical workpieces are conveniently limited at the same time through the corresponding gear and rack transmission structure and the lever principle, so that the mechanical workpieces can be better limited, and the polishing process is more convenient; namely: before grinding, a user can place a mechanical workpiece on the operating table 33, then the air cylinder 42 is conveniently adjusted through the damping block 48, then the user can switch on the power supply of the air cylinder 42, the air cylinder 42 drives the telescopic rod 45 to extend and retract up and down, the telescopic rod 45 moves to drive the first gear 46 to move, the two toothed plates 43 are driven to move simultaneously along with the movement of the first gear 46, the toothed plates 43 move to drive the limiting blocks 47 to move, finally the two limiting blocks 47 extrude and limit the workpiece, when the machining surfaces on the workpiece are at different heights, when one of the limiting blocks 47 firstly pushes against and extrudes the machining surface at one end of the workpiece, due to unbalanced stress of the two limiting blocks 47, the first gear 46 rotates to drive one of the toothed plates 43 to move simultaneously, the other limiting block 47 is enabled to move along with the other limiting block, and finally the limiting block is abutted to extrude the lower processing surface of the workpiece, so that the processing surfaces with different heights on some irregular mechanical workpieces can be conveniently limited at the same time, the mechanical workpieces can be better limited, and the polishing process is more convenient.

Specifically, the stretching mechanism 5 includes a protection plate 51, a rotating plate 52, a second gear 53, a third gear 54, a rack 55 and a slider 56, the protection plate 51 is provided on the top of the mounting table 1 on one side of the fixing frame 31, one end of the operation table 33 away from the fixing frame 31 is engaged with the inside of the protection plate 51, the rotating plate 52 is provided on the top of the mounting table 1 on one side of the protection plate 51, the bottom end of the rotating plate 52 extends into the mounting table 1 and is connected with the second gear 53, one third gear 54 is engaged with each of both sides of the second gear 53, the third gear 54 rotates inside the mounting table 1, one rack 55 is engaged with one side of the third gear 54 away from the second gear 53, the slider 56 is fixed to one end of the rack 55, and the slider 56 is engaged with the inside of the mounting table 1, and the top of the sliding block 56 is fixed on the bottom of the protection plate 51; when the device is used, the stretching mechanism 5 is arranged on one side of the polishing mechanism 3, and the corresponding adjustment on the arrangement surface of a workpiece is facilitated through the corresponding gear rack transmission structure, so that the device is conveniently suitable for processing workpieces with different sizes and is more convenient for processing workpieces with larger sizes; namely: when a workpiece with a large size needs to be polished, a user can manually rotate the rotary table 52, the rotary table 52 rotates to drive the second gear 53 to rotate, the second gear 53 rotates to drive the two third gears 54 to rotate, then the two racks 55 are driven to move along with the third gears, the racks 55 move to drive the sliding block 56 to move, finally the protection plate 51 is driven to move, the operation table 33 is gradually pulled away from the inside of the protection plate 51 in a relative mode, and therefore the operation area of the operation table 33 is convenient to adjust, and the workpiece with the large size is more convenient to polish.

Specifically, the cleaning mechanism 6 includes a fixing plate 61, a holding handle 62, a cleaning block 63, a guide rod 64 and a spring 65, the fixing plate 61 is arranged on the inner wall of the fixing frame 31 near the bottom end, one side of the fixing plate 61 is fixed to the cleaning block 63, the cleaning block 63 is clamped inside the fixing frame 31, the holding handle 62 is fixed to the middle of the top surface of the cleaning block 63, two springs 65 are fixed to one side of the cleaning block 63 away from the fixing plate 61, the other end of each spring 65 is fixed to the inner wall of the fixing frame 31, each spring 65 is wound around the guide rod 64, and one end of each guide rod 64 is fixed to the corresponding cleaning block 63; when the cleaning device is used, the cleaning mechanism 6 is arranged inside the bottom end of the polishing mechanism 3, and the corresponding spring clamping block structure is matched with the cleaning device, so that a plurality of dust and debris generated on the polishing mechanism 3 during use can be conveniently cleaned, the polishing process is more convenient, and an operator is safer; namely: after polishing, the user can manually hold the grab handle 62 and pull to drive the cleaning block 63 to move, so that the cleaning block 63 is right to clean the operating platform 33, the spring 65 is stretched along with the cleaning block 63 to facilitate resetting of the cleaning block 63, thereby conveniently cleaning a plurality of dust and debris generated during polishing, facilitating the polishing process and being safer for operators.

Specifically, the accommodating mechanism 7 includes a plurality of baffle plates 71, a guide groove 72, a sealing plate 73, and a latch 74, the baffle plates 71 are provided in a plurality in an inner cavity on the side of the installation table 1, the latch 74 is fixed to a bottom portion on the side of the baffle plates 71, the latch 74 is engaged with the inside of the installation table 1, the installation table 1 is provided with one guide groove 72 on each side of the inner cavity where the baffle plates 71 are provided, and the sealing plate 73 is engaged with the inside of the installation table 1 where the baffle plates 71 are provided; when the storage rack is used, a user can manually open the sealing plate 73, place some tools to be used in the inner cavity on one side of the installation platform 1, meanwhile, the baffle plate 71 can be shifted to facilitate adjustment of the storage space, and further, the baffle plate 71 can be slid to the extreme end and slid out through the guide groove 72, so that more storage space is obtained.

When the invention is used, firstly, before grinding, a user can place a mechanical workpiece on the operating table 33, then the air cylinder 42 is conveniently adjusted through the damping block 48, then, the user can switch on the power supply of the air cylinder 42, the air cylinder 42 drives the telescopic rod 45 to extend and retract up and down, the telescopic rod 45 moves to drive the first gear 46 to move, the two toothed plates 43 are driven to move simultaneously along with the movement of the first gear 46, the toothed plates 43 move to drive the limiting blocks 47 to move, finally, the two limiting blocks 47 extrude and limit the workpiece, when the processing surfaces on the workpiece are at different heights, when one limiting block 47 firstly props against and extrudes to the processing surface at one end of the workpiece, due to unbalanced stress of the two limiting blocks 47, the first gear 46 rotates to drive one toothed plate 43 to move simultaneously, and the other limiting block 47 moves along with the same, finally, the workpiece is extruded to a lower processing surface of the workpiece in a butting manner, so that the processing surfaces with different heights on some irregular mechanical workpieces can be conveniently and simultaneously limited, and the mechanical workpieces can be better limited; then, the user can rotate the knob 32, the knob 32 rotates to drive the screw 34 to rotate, the screw 34 rotates to enable the connecting rod 35 to continuously move back and forth, the connecting rod 35 moves to drive the sander main body 36 to move along with the sander main body 36, and when the sander main body 36 is adjusted to a required proper position, the user can switch on the sander main body 36 to enable the sander main body 36 to perform limiting sanding on a corresponding workpiece; in addition, when some workpieces with larger sizes need to be polished, a user can manually rotate the rotary table 52, the rotary table 52 rotates to drive the second gear 53 to rotate, the second gear 53 rotates to drive the two third gears 54 to rotate, then the two racks 55 are driven to move along with the rotation, the racks 55 move to drive the sliding block 56 to move, finally the protection plate 51 is driven to move, and the operation table 33 is relatively gradually pulled out of the protection plate 51, so that the operation area of the operation table 33 is conveniently adjusted, and the workpieces with larger sizes are more conveniently machined and polished; after polishing, a user can manually hold the handle 62 and pull the handle to drive the cleaning block 63 to move, so that the cleaning block 63 cleans the operating table 33, and the spring 65 is stretched accordingly, thereby facilitating the resetting of the cleaning block 63; in addition, the user can manually open the closing plate 73, place some tools to be used in the inner cavity on one side of the placing table 1, and meanwhile, the baffle plate 71 can be shifted to conveniently adjust the storage space, and further, the baffle plate 71 can be slid to the extreme end and slid out through the guide groove 72, so that more storage spaces can be obtained.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The mechanical polishing equipment convenient for limiting the workpiece is characterized by comprising a mounting table (1), a support (2), a polishing mechanism (3), a limiting mechanism (4), a stretching mechanism (5), a cleaning mechanism (6) and a containing mechanism (7), wherein the support (2) for supporting the whole equipment is fixed at the bottom of the mounting table (1) for fixedly mounting other mechanisms, the polishing mechanism (3) for polishing the workpiece is arranged at one side of the top of the mounting table (1), the limiting mechanism (4) for limiting the workpiece to be polished is arranged on the polishing mechanism (3), the stretching mechanism (5) for adjusting an operating platform is arranged at one side of the top of the mounting table (1) away from the polishing mechanism (3), and the cleaning mechanism (6) for cleaning the operating platform is arranged inside the bottom end of the polishing mechanism (3), the storage mechanism (7) for storing some operation tools is arranged in one side of the placing table (1).

2. A mechanical sharpening apparatus as defined in claim 1, wherein: grinding machanism (3) are including mount (31), knob (32), operation panel (33), screw rod (34), connecting rod (35) and polisher main part (36), one side at mount (1) top is fixed with mount (31), the middle part of mount (31) one side is equipped with knob (32), one side of knob (32) is connected with screw rod (34), screw rod (34) rotate connect in the inner wall of mount (31), the one end block of connecting rod (35) in the inner wall of mount (31), just screw rod (34) threaded connection in the inside of connecting rod (35), connecting rod (35) deviate from the one end of mount (31) is installed polisher main part (36), the bottom of mount (31) one side is fixed with operation panel (33).

3. A mechanical sharpening apparatus as defined in claim 2, wherein: the limiting mechanism (4) comprises an adjusting block (41), an air cylinder (42), a toothed plate (43), a limiting frame (44), a telescopic rod (45), a first gear (46), a limiting block (47) and a damping block (48), the adjusting block (41) is arranged in the middle of the top end of the fixing frame (31), the two opposite sides of the adjusting block (41) are respectively connected with the damping block (48), the damping block (48) is clamped in the fixing frame (31), the air cylinder (42) is installed at the top of the adjusting block (41), the telescopic rod (45) is connected to the bottom end of the air cylinder (42), the adjusting block (41) is penetrated through the bottom end of the telescopic rod (45) and is rotatably connected with the first gear (46), the limiting frame (44) is respectively fixed on the two sides of the bottom of the adjusting block (41), the toothed plate (43) is respectively clamped in the inner part of the opposite side of the two limiting frames (44), the first gear (46) is meshed with the two toothed plates (43), and the bottom of each toothed plate (43) is fixed with the limiting block (47).

4. A mechanical sharpening apparatus as defined in claim 2, wherein: the stretching mechanism (5) comprises a protection plate (51), a rotating disc (52), a second gear (53), a third gear (54), a rack (55) and a sliding block (56), the protection plate (51) is arranged on one side, located on the fixing frame (31), of the top of the installation table (1), one end, away from the fixing frame (31), of the operating table (33) is clamped in the protection plate (51), the rotating disc (52) is arranged on one side, located on the protection plate (51), of the top of the installation table (1), the bottom end of the rotating disc (52) extends into the installation table (1) and is connected with the second gear (53), the third gear (54) is respectively meshed on two sides of the second gear (53), the third gear (54) rotates in the installation table (1), and the rack (55) is meshed on one side, away from the second gear (53), of the third gear (54), the slide block (56) is fixed to one end of the rack (55), the slide block (56) is engaged with the inside of the installation table (1), and the top of the slide block (56) is fixed to the bottom of the protection plate (51).

5. A mechanical sharpening apparatus as defined in claim 2, wherein: clean mechanism (6) are including fixed plate (61), grab handle (62), clean piece (63), guide bar (64) and spring (65), be equipped with on the inner wall that mount (31) are close to the bottom fixed plate (61), one side of fixed plate (61) is fixed in clean piece (63), clean piece (63) block in the inside of mount (31), the top surface middle part of clean piece (63) is fixed with grab handle (62), clean piece (63) deviate from one side of fixed plate (61) is fixed with two spring (65), the other end of spring (65) is fixed in the inner wall of mount (31), just spring (65) twine in guide bar (64), the one end of guide bar (64) is fixed in on clean piece (63).

6. A mechanical sharpening apparatus as defined in claim 1, wherein: the accommodating mechanism (7) comprises baffle plates (71), a guide groove (72), a sealing plate (73) and a fixture block (74), wherein a plurality of baffle plates (71) are arranged in an inner cavity at one side of the installation table (1), the fixture block (74) is fixed at the bottom at one side of the baffle plates (71), the fixture block (74) is clamped in the installation table (1), the guide groove (72) is respectively arranged at two sides of the inner cavity at the position where the baffle plates (71) are arranged on the installation table (1), and the sealing plate (73) is clamped in the installation table (1) at the side where the baffle plates (71) are arranged.