阅读说明：本技术 一种便于定心的数控内外圆磨床及其使用方法 (Numerical control internal and external grinding machine convenient for centering and use method thereof ) 是由 李鹏 黄先明 于 2021-09-08 设计创作，主要内容包括：本发明属于磨床领域,尤其是一种便于定心的数控内外圆磨床及其使用方法,针对现有的磨床不具备清洁功能,时间久了内部会附着大量的灰尘杂质问题,现提出如下方案,其包括清洁箱,所述清洁箱的两侧均滑动安装有升降板,两个升降板的顶部均固定安装有连接板,两个连接板的底部固定安装有同一个安装罩,所述安装罩的底部转动安装有防护罩,防护罩可以在安装罩上转动,同时防护罩可以随着安装罩竖直移动,防护罩的前侧铰接有盖板,所述防护罩上设有转动轴,转动轴的底部固定安装有固定罩,固定罩上螺纹安装有多个定位块,定位块和固定罩用于固定工件,本发明具备清洁功能,能够有效的对防护罩的内部进行清洁,避免灰尘杂质附着。(The invention belongs to the field of grinding machines, in particular to a numerical control internal and external grinding machine convenient for centering and a using method thereof, aiming at the problems that the existing grinding machine does not have a cleaning function and a large amount of dust and impurities can be attached to the inside after a long time, the invention provides a proposal that the numerical control internal and external grinding machine comprises a cleaning box, lifting plates are arranged on two sides of the cleaning box in a sliding way, connecting plates are fixedly arranged on the tops of the two lifting plates, the bottoms of the two connecting plates are fixedly provided with a same mounting cover, the bottom of the mounting cover is rotatably provided with a protective cover which can rotate on the mounting cover, the protective cover can vertically move along with the mounting cover, a cover plate is hinged on the front side of the protective cover, a rotating shaft is arranged on the protective cover, a fixing cover is fixedly arranged at the bottom of the rotating shaft, a plurality of positioning blocks are arranged on the fixing cover in a threaded way, and the positioning blocks and the fixing cover are used for fixing workpieces, and the invention has the cleaning function, can be effectual clean the inside of protection casing, avoid dust impurity to adhere to.)

1. The utility model provides a numerical control inside and outside grinding machine convenient to centering, includes cleaning box (1), its characterized in that, the equal slidable mounting in both sides of cleaning box (1) has lifter plate (2), and the equal fixed mounting in top of two lifter plates (2) has connecting plate (3), and the bottom fixed mounting of two connecting plates (3) has same installation cover (4), the bottom of installation cover (4) is rotated and is installed protection casing (5), and the front side of protection casing (5) articulates there is the apron, be equipped with the axis of rotation on protection casing (5), the bottom fixed mounting of axis of rotation has fixed cover (10), and threaded mounting has a plurality of locating pieces on fixed cover (10), be equipped with slewing mechanism on protection casing (5), be equipped with elevating system on connecting plate (3), be equipped with cleaning mechanism on cleaning box (1), the top fixed mounting of installation cover (4) has electric putter (8), a first motor (9) is fixedly mounted on an output shaft of the electric push rod (8), the output shaft of the first motor (9) is fixedly connected with the top of the rotating shaft, a liquid discharge pipe (29) is fixedly communicated with the bottom of one side of the cleaning box (1), and a first valve (39) is arranged on the liquid discharge pipe (29).

2. The numerical control internal and external circular grinding machine convenient to center is characterized in that the rotating mechanism comprises an annular rack (16), the annular rack (16) is fixedly installed on the outer side of the protective cover (5), an annular groove (17) is formed in the bottom of the installation cover (4), an annular plate (18) is installed in the annular groove (17) in a sliding mode, the bottom of the annular plate (18) is fixedly connected with the top of the protective cover (5), an annular limiting groove is formed in the inner wall of the annular groove (17), two sliding blocks are installed in the annular limiting groove in a sliding mode, the two sliding blocks are both fixedly connected with the outer side of the annular plate (18), and a gear (15) is meshed on the annular rack (16).

3. The numerical control internal and external grinding machine convenient to center according to claim 1, wherein the lifting mechanism comprises a second motor (13), a screw (14) is fixedly installed on an output shaft of the second motor (13), a gear (15) is fixedly sleeved on the outer side of the screw (14), a threaded groove (19) is formed in the top of the cleaning box (1), and the screw (14) is in threaded connection with the threaded groove (19).

4. The numerical control internal and external circular grinding machine convenient for centering as claimed in claim 1, wherein said cleaning mechanism comprises a round bar (11), said round bar (11) is rotatably mounted at the bottom of the cleaning box (1), and a roller brush (12) is fixedly mounted at the outer side of said round bar (11).

5. The numerical control internal and external grinding machine convenient for centering as claimed in claim 1, wherein the cleaning box (1) is rotatably provided with a mounting shaft (38), a transmission gear (20) is fixedly mounted on the outer side of the mounting shaft (38), one side of one lifting plate (2) of the two lifting plates (2) is provided with a groove (21), a transmission rack (22) is fixedly mounted in the groove (21), and the transmission gear (20) is meshed with the transmission rack (22).

6. The numerical control internal and external grinding machine convenient for centering as claimed in claim 5, wherein one end of the transmission gear (20) is fixedly provided with a first bevel gear (23), a second bevel gear (24) is engaged on the first bevel gear (23), the bottom of the second bevel gear (24) is fixedly provided with a connecting rod (25), and the connecting rod (25) is rotatably arranged on the cleaning box (1).

7. The numerical control internal and external circular grinding machine convenient for centering as claimed in claim 6, characterized in that the bottom end of the connecting rod (25) is fixedly provided with a first chain wheel (26), the bottom end of the circular rod (11) is fixedly provided with a second chain wheel (27), and the first chain wheel (26) and the second chain wheel (27) are engaged with the same chain (28).

8. The numerical control internal and external grinding machine convenient for centering as claimed in claim 1, wherein one end of the liquid discharge pipe (29) is fixedly communicated with a filter box (30), a filter screen (32) is arranged in the filter box (30), an impurity discharge pipe (40) is arranged at the bottom of the filter box (30), a second valve is arranged on the impurity discharge pipe (40), the top of the filter box (30) is fixedly communicated with a water inlet of a water pump (31), and a water outlet of the water pump (31) is fixedly communicated with the cleaning box (1).

9. The numerical control internal and external grinding machine convenient to center according to claim 1, characterized in that, fixed mounting has the one end of a plurality of montants (6) on the top inner wall of protection casing (5), the other end fixed mounting of a plurality of montants (6) has same fixed plate (7), spout (33) have been seted up at the top of fixed plate (7), slidable mounting has two regulating blocks (34) in spout (33), the equal fixed mounting in top of two regulating blocks (34) has sanding block (35), the through-hole has been seted up on the one side inner wall of spout (33), fixed mounting has limiting plate (36) in the through-hole, two regulating blocks (34) all with limiting plate (36) sliding connection, fixing bolt (37) have all been installed to the screw thread in one side of two regulating blocks (34).

10. A using method of a numerical control internal and external grinding machine convenient for centering is characterized by comprising the following steps:

s1, when polishing, opening a cover plate, putting a workpiece into the cover plate from the bottom of a fixed cover (10), centering the workpiece through a plurality of positioning blocks, then closing the cover plate, pushing a first motor (9) to move downwards by an electric push rod (8), driving a rotating shaft to move by the first motor (9), driving the fixed cover (10) to move downwards by the rotating shaft, enabling the inner side and the outer side of the workpiece to be in contact with the outer sides of two polishing blocks (35), driving the rotating shaft to rotate by the first motor (9), driving the fixed cover (10) to rotate by the rotating shaft, driving the workpiece to rotate by the fixed cover (10), enabling the inner side and the outer side of the workpiece to be in contact with the two polishing blocks (35), completing polishing, and taking out the workpiece after polishing is completed;

s2, when cleaning is needed, the screw rod (14) is driven to rotate through the second motor (13), and as the screw rod (14) is in threaded connection with the thread groove (19), the screw rod (14) rotates and pulls the second motor (13) to move downwards at the same time, so that the mounting cover (4) is driven to move downwards, the mounting cover (4) drives the protective cover (5) to move downwards, and the protective cover (5) and parts in the protective cover (5) enter the cleaning box (1) to be in contact with water in the cleaning box (1) for cleaning;

s3, driving a gear (15) to rotate through rotation of a screw (14), driving an annular rack (16) to rotate by the gear (15), driving a protective cover (5) to rotate by the annular rack (16), enabling the protective cover (5) to rotate while facing downwards, and enabling the inner side of the protective cover (5) to be in contact with a roller brush (12) to clean the inner wall of the protective cover (5);

s4, the lifting plate (2) moves downwards along with the installation cover (4), a transmission rack (22) on the lifting plate (2) drives a transmission gear (20) to rotate, the transmission gear (20) drives a first bevel gear (23) to rotate, the first bevel gear (23) drives a second bevel gear (24) to rotate, the second bevel gear (24) drives a connecting rod (25) to rotate, the connecting rod (25) drives a first chain wheel (26) to rotate, the first chain wheel (26) drives a second chain wheel (27) to rotate through a chain (28), the second chain wheel (27) drives a round rod (11) to rotate, the round rod (11) drives a roller brush (12) to rotate, and the cleaning effect is improved;

s5, after cleaning is finished, the first valve (39) is opened, the water pump (31) is started, water in the cleaning box (1) is extracted, and the water returns to the cleaning box (1) again after being filtered by the filter screen (32), so that water recycling is realized.

Technical Field

The invention relates to the technical field of grinding machines, in particular to a numerical control internal and external grinding machine convenient to center and a using method thereof.

Background

A grinding machine is a machine tool that grinds the surface of a workpiece using a grinding tool. Most grinding machines perform grinding using a grinding wheel rotating at a high speed, and a few grinding machines perform grinding using oilstones, sanding belts and other grinders and free abrasives, such as honing machines, superfinishing machines, sanding belt grinders, grinding machines, polishing machines, and the like.

By search, publication (bulletin) no: CN 213380613U's patent document discloses a numerical control inside and outside circular grinder convenient to centering relates to the equipment technical field that polishes. This interior circular grinding machine of numerical control convenient to centering, including lower box, the box top is provided with the box down, it has the apron to go up the articulated apron of box front side, it is provided with the motor to go up the box top, motor output fixedly connected with transmission shaft, the transmission shaft bottom is provided with the centre gripping subassembly, it is provided with the subassembly of polishing to go up the inside bottom of box, the centre gripping subassembly includes urceolus and inner tube, inner tube fixed connection is in the transmission shaft bottom, the urceolus set up in the inner tube outside and with inner tube threaded connection. This interior circular grinding machine of numerical control convenient to centering passes through the motor output and drives the work piece and rotate, is favorable to accomplishing the polishing to the work piece, is favorable to fixing a position and fixing the work piece fast through this structure to improve the efficiency of polishing, and this fixed simple structure, the operation and the use of being convenient for.

However, the grinding machine does not have a cleaning function, and a large amount of dust and impurities are attached to the interior of the grinding machine after a long time, so that a numerical control internal and external grinding machine convenient for centering and a using method thereof are provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects that a grinding machine does not have a cleaning function and a large amount of dust and impurities are attached to the interior of the grinding machine after a long time in the prior art, and provides a numerical control inner and outer circle grinding machine convenient to center and a using method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a numerical control internal and external grinding machine convenient for centering comprises a cleaning box, wherein lifting plates are slidably mounted on two sides of the cleaning box, connecting plates are fixedly mounted on the tops of the two lifting plates, the bottom of the two connecting plates is fixedly provided with the same mounting cover, a protective cover is rotatably mounted on the bottom of the mounting cover and can rotate on the mounting cover, the protective cover can vertically move along with the mounting cover, an cover plate is hinged to the front side of the protective cover, a rotating shaft is arranged on the protective cover, a fixing cover is fixedly mounted at the bottom of the rotating shaft, a plurality of positioning blocks are mounted on the fixing cover in a threaded manner, the positioning blocks and the fixing cover are used for fixing a workpiece, a rotating mechanism is arranged on the protective cover, the protective cover can rotate due to the arrangement of the rotating mechanism, a lifting mechanism is arranged on the connecting plates and can vertically move the mounting cover, and a cleaning mechanism is arranged on the cleaning box, the cleaning mechanism can improve the cleaning effect, an electric push rod is fixedly arranged at the top of the mounting cover and used for pushing a first motor to vertically move, the first motor is fixedly arranged on an output shaft of the electric push rod, the output shaft of the first motor is fixedly connected with the top of the rotating shaft, a liquid discharge pipe is fixedly communicated with the bottom of one side of the cleaning box, a first valve is arranged on the liquid discharge pipe, the rotating mechanism comprises an annular rack which is fixedly arranged at the outer side of the protective cover, an annular groove is formed in the bottom of the mounting cover, an annular plate is slidably arranged in the annular groove, the bottom of the annular plate is fixedly connected with the top of the protective cover, an annular limiting groove is formed in the inner wall of the annular groove, two sliding blocks are slidably arranged in the annular limiting groove and fixedly connected with the outer side of the annular plate, and the annular plate can only rotate in the annular groove due to the arrangement of the sliding blocks and the annular limiting groove, the annular rack is engaged with a gear, the annular rack is driven to rotate through the rotation of the gear, the lifting mechanism comprises a second motor, a screw is fixedly mounted on an output shaft of the second motor, the gear is fixedly sleeved on the outer side of the screw, a thread groove is formed in the top of the cleaning box, the screw is in threaded connection with the thread groove, the screw can vertically move when rotating, the cleaning mechanism comprises a round rod, the round rod is rotatably mounted at the bottom of the cleaning box, a roller brush is fixedly mounted on the outer side of the round rod, and the round rod drives the roller brush to rotate;

the cleaning box is rotatably provided with an installation shaft, a transmission gear is fixedly arranged on the outer side of the installation shaft, one side of one of the two lifting plates is provided with a groove, a transmission rack is fixedly arranged in the groove and is meshed with the transmission rack, the transmission rack can drive the transmission gear to rotate when moving, one end of the transmission gear is fixedly provided with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the first bevel gear can drive the second bevel gear to rotate, the bottom of the second bevel gear is fixedly provided with a connecting rod, the connecting rod is rotatably arranged on the cleaning box, the bottom of the connecting rod is fixedly provided with a first chain wheel, the bottom of the round rod is fixedly provided with a second chain wheel, the first chain wheel and the second chain wheel are meshed with the same chain, the first chain wheel and the second chain wheel can rotate synchronously, one end of the liquid discharge pipe is fixedly communicated with the filter box, a filter screen is arranged in the filter box, an impurity discharging pipe is arranged at the bottom of the filter box, a second valve is arranged on the impurity discharging pipe, the top of the filter box is fixedly communicated with a water inlet of a water pump, and a water outlet of the water pump is fixedly communicated with the cleaning box;

fixed mounting has the one end of a plurality of montants on the top inner wall of protection casing, the other end fixed mounting of a plurality of montants has same fixed plate, the spout has been seted up at the top of fixed plate, slidable mounting has two regulating blocks in the spout, the equal fixed mounting in top of two regulating blocks has the piece of polishing, the through-hole has been seted up on one side inner wall of spout, fixed mounting has the limiting plate in the through-hole, two regulating blocks all with limiting plate sliding connection, the equal threaded mounting in one side of two regulating blocks has fixing bolt, fixing bolt's setting is fixed the position of regulating block.

The invention also provides a use method of the numerical control internal and external grinding machine convenient for centering, which comprises the following steps:

s1, when polishing, opening a cover plate, putting a workpiece into the cover plate from the bottom of a fixed cover, centering the workpiece through a plurality of positioning blocks, then closing the cover plate, pushing a first motor to move downwards by an electric push rod, driving a rotating shaft to move by the first motor, driving the fixed cover to move downwards by the rotating shaft, enabling the inner side and the outer side of the workpiece to be in contact with the outer sides of two polishing blocks, driving the rotating shaft to rotate by the first motor, driving the fixed cover to rotate by the rotating shaft, driving the workpiece to rotate by the fixed cover, enabling the inner side and the outer side of the workpiece to be in contact with the two polishing blocks, completing polishing, and taking the workpiece out after polishing;

s2, when cleaning is needed, the screw rod is driven to rotate through the second motor, and due to the fact that the screw rod is in threaded connection with the thread groove, the screw rod rotates and pulls the second motor to move downwards, the mounting cover is driven to move downwards, the mounting cover drives the protective cover to move downwards, the protective cover and parts in the protective cover enter the cleaning box, contact with water in the cleaning box, and cleaning is conducted;

s3, driving a gear to rotate through rotation of the screw rod, driving an annular rack to rotate by the gear, driving a protective cover to rotate by the annular rack, rotating and downward the protective cover, and simultaneously contacting the inner side of the protective cover with a roller brush to clean the inner wall of the protective cover;

s4, the lifting plate moves downwards along with the mounting cover, the transmission rack on the lifting plate drives the transmission gear to rotate, the transmission gear drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the connecting rod to rotate, the connecting rod drives the first chain wheel to rotate, the first chain wheel drives the second chain wheel to rotate through the chain, the second chain wheel drives the round rod to rotate, and the round rod drives the roller brush to rotate, so that the cleaning effect is improved;

s5, after cleaning, opening the first valve, starting the water pump, extracting the water in the cleaning box, and returning the water into the cleaning box again after the water is filtered by the filter screen, so that the water is recycled.

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

the screw rod is driven to rotate by the second motor, and the screw rod is in threaded connection with the thread groove, so that the screw rod rotates and pulls the second motor to move downwards at the same time, the mounting cover is driven to move downwards, the mounting cover drives the protective cover to move downwards, and the protective cover and parts in the protective cover enter the cleaning box and are in contact with water in the cleaning box to be cleaned;

the gear is driven to rotate through the rotation of the screw rod, the gear drives the annular rack to rotate, the annular rack drives the protective cover to rotate, the protective cover rotates and faces downwards, and meanwhile, the inner side of the protective cover is in contact with the roller brush to clean the inner wall of the protective cover;

the lifting plate can move downwards along with the mounting cover, the transmission rack on the lifting plate can drive the transmission gear to rotate, the transmission gear drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the connecting rod to rotate, the connecting rod drives the first chain wheel to rotate, the first chain wheel drives the second chain wheel to rotate through the chain, the second chain wheel drives the round rod to rotate, and the round rod drives the roller brush to rotate, so that the cleaning effect is improved;

the invention has the cleaning function, can effectively clean the interior of the protective cover and avoid the attachment of dust and impurities.

Drawings

FIG. 1 is a schematic perspective view of a numerically controlled internal and external grinding machine convenient for centering according to the present invention;

FIG. 2 is a schematic cross-sectional structure diagram of a numerical control internal and external grinding machine convenient for centering according to the present invention;

FIG. 3 is an enlarged schematic structural view of part A in FIG. 2 of a numerically controlled internal and external grinding machine convenient for centering according to the present invention;

FIG. 4 is an enlarged schematic structural view of a portion B in FIG. 2 of the numerically controlled internal and external grinding machine convenient for centering according to the present invention;

fig. 5 is a schematic top view of a fixed plate and an adjusting block of the numerically controlled internal and external grinding machine convenient for centering according to the present invention.

In the figure: 1. a cleaning tank; 2. a lifting plate; 3. a connecting plate; 4. mounting a cover; 5. a protective cover; 6. a vertical rod; 7. a fixing plate; 8. an electric push rod; 9. a first motor; 10. a fixed cover; 11. a round bar; 12. a roller brush; 13. a second motor; 14. a screw; 15. a gear; 16. an annular rack; 17. an annular groove; 18. an annular plate; 19. a thread groove; 20. a transmission gear; 21. a groove; 22. a drive rack; 23. a first bevel gear; 24. a second bevel gear; 25. a connecting rod; 26. a first sprocket; 27. a second sprocket; 28. a chain; 29. a liquid discharge pipe; 30. a filter box; 31. a water pump; 32. a filter screen; 33. a chute; 34. an adjusting block; 35. grinding blocks; 36. a limiting plate; 37. fixing the bolt; 38. installing a shaft; 39. a first valve; 40. and (4) impurity removing pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-5, a numerical control internal and external grinding machine convenient for centering comprises a cleaning box 1, lifting plates 2 are slidably mounted on both sides of the cleaning box 1, connecting plates 3 are fixedly mounted on the tops of the two lifting plates 2, the bottom of the two connecting plates 3 is fixedly mounted with a same mounting cover 4, a protective cover 5 is rotatably mounted on the bottom of the mounting cover 4, a cover plate is hinged on the front side of the protective cover 5, a rotating shaft is arranged on the protective cover 5, a fixing cover 10 is fixedly mounted on the bottom of the rotating shaft, a plurality of positioning blocks are mounted on the fixing cover 10 in a threaded manner, a rotating mechanism is arranged on the protective cover 5, a lifting mechanism is arranged on the connecting plates 3, a cleaning mechanism is arranged on the cleaning box 1, an electric push rod 8 is fixedly mounted on the top of the mounting cover 4, a first motor 9 is fixedly mounted on an output shaft of the electric push rod 8, and an output shaft of the first motor 9 is fixedly connected with the top of the rotating shaft, a drain pipe 29 is fixedly communicated with the bottom of one side of the cleaning box 1, and a first valve 39 is arranged on the drain pipe 29.

In this embodiment, slewing mechanism includes annular rack 16, annular rack 16 fixed mounting is in the outside of protection casing 5, ring channel 17 has been seted up to the bottom of installation cover 4, slidable mounting has annular plate 18 in ring channel 17, the bottom of annular plate 18 and the top fixed connection of protection casing 5, the annular spacing groove has been seted up to the inner wall of ring channel 17, slidable mounting has two sliding blocks in the annular spacing groove, two sliding blocks all with the outside fixed connection of annular plate 18, the meshing has gear 15 on the annular rack 16.

In this embodiment, the lifting mechanism includes a second motor 13, a screw 14 is fixedly installed on an output shaft of the second motor 13, a gear 15 is fixedly sleeved outside the screw 14, a thread groove 19 is formed in the top of the cleaning box 1, and the screw 14 is in threaded connection with the thread groove 19.

In this embodiment, the cleaning mechanism includes a round bar 11, the round bar 11 is rotatably installed at the bottom of the cleaning box 1, and a roller brush 12 is fixedly installed at the outer side of the round bar 11.

In this embodiment, the cleaning box 1 is rotatably provided with a mounting shaft 38, the outer side of the mounting shaft 38 is fixedly provided with a transmission gear 20, one side of one lifting plate 2 of the two lifting plates 2 is provided with a groove 21, a transmission rack 22 is fixedly arranged in the groove 21, and the transmission gear 20 is meshed with the transmission rack 22.

In this embodiment, one end of the transmission gear 20 is fixedly installed with a first bevel gear 23, the first bevel gear 23 is engaged with a second bevel gear 24, the bottom of the second bevel gear 24 is fixedly installed with a connecting rod 25, and the connecting rod 25 is rotatably installed on the cleaning box 1.

In this embodiment, a first chain wheel 26 is fixedly mounted at the bottom end of the connecting rod 25, a second chain wheel 27 is fixedly mounted at the bottom end of the round rod 11, and the same chain 28 is engaged with the first chain wheel 26 and the second chain wheel 27.

In this embodiment, one end of the liquid discharge pipe 29 is fixedly communicated with the filter box 30, the filter screen 32 is arranged in the filter box 30, the bottom of the filter box 30 is provided with the impurity discharge pipe 40, the impurity discharge pipe 40 is provided with the second valve, the top of the filter box 30 is fixedly communicated with the water inlet of the water pump 31, and the water outlet of the water pump 31 is fixedly communicated with the cleaning box 1.

In this embodiment, fixed mounting has the one end of a plurality of montants 6 on the top inner wall of protection casing 5, the other end fixed mounting of a plurality of montants 6 has same fixed plate 7, spout 33 has been seted up at the top of fixed plate 7, slidable mounting has two regulating blocks 34 in spout 33, the equal fixed mounting in top of two regulating blocks 34 has sanding block 35, the through-hole has been seted up on one side inner wall of spout 33, fixed mounting has limiting plate 36 in the through-hole, two regulating blocks 34 all with limiting plate 36 sliding connection, fixing bolt 37 is installed to the equal screw thread in one side of two regulating blocks 34.

The embodiment also provides a use method of the numerical control internal and external grinding machine convenient for centering, which is characterized by comprising the following steps:

s1, when polishing, opening a cover plate, putting a workpiece into the cover plate from the bottom of a fixed cover 10, centering the workpiece through a plurality of positioning blocks, then closing the cover plate, pushing a first motor 9 to move downwards by an electric push rod 8, driving a rotating shaft to move by the first motor 9, driving the fixed cover 10 to move downwards by the rotating shaft, enabling the inner side and the outer side of the workpiece to be in contact with the outer sides of two polishing blocks 35, driving the rotating shaft to rotate by the first motor 9, driving the fixed cover 10 to rotate by the rotating shaft, driving the workpiece to rotate by the fixed cover 10, enabling the inner side and the outer side of the workpiece to be in contact with the two polishing blocks 35, completing polishing, and taking the workpiece out after polishing;

s2, when cleaning is needed, the screw 14 is driven to rotate by the second motor 13, and the screw 14 is in threaded connection with the thread groove 19, so that the screw 14 rotates and pulls the second motor 13 to move downwards, the mounting cover 4 is driven to move downwards, the mounting cover 4 drives the protective cover 5 to move downwards, and the protective cover 5 and components in the protective cover 5 enter the cleaning box 1 to be in contact with water in the cleaning box 1 for cleaning;

s3, the gear 15 is driven to rotate through the rotation of the screw 14, the gear 15 drives the annular rack 16 to rotate, the annular rack 16 drives the protective cover 5 to rotate, the protective cover 5 rotates and faces downwards, and meanwhile, the inner side of the protective cover 5 is in contact with the roller brush 12 to clean the inner wall of the protective cover 5;

s4, the lifting plate 2 moves downwards along with the installation cover 4, the transmission rack 22 on the lifting plate 2 drives the transmission gear 20 to rotate, the transmission gear 20 drives the first bevel gear 23 to rotate, the first bevel gear 23 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the connecting rod 25 to rotate, the connecting rod 25 drives the first chain wheel 26 to rotate, the first chain wheel 26 drives the second chain wheel 27 to rotate through the chain 28, the second chain wheel 27 drives the round rod 11 to rotate, and the round rod 11 drives the roller brush 12 to rotate, so that the cleaning effect is improved;

s5, after cleaning is finished, the first valve 39 is opened, the water pump 31 is started to pump the water in the cleaning box 1, and the water returns to the cleaning box 1 after being filtered by the filter screen 32, so that the water is recycled.

Example two

The difference from the first embodiment is that: comprises a cleaning box 1, lifting plates 2 are slidably arranged on two sides of the cleaning box 1, connecting plates 3 are fixedly arranged on the tops of the two lifting plates 2, the bottom of each connecting plate 3 is fixedly provided with a same mounting cover 4, the bottom of each mounting cover 4 is rotatably provided with a protective cover 5, a cover plate is hinged on the front side of each protective cover 5, a rotating shaft is arranged on each protective cover 5, a fixing cover 10 is fixedly arranged on the bottom of each rotating shaft, a plurality of positioning blocks are arranged on each fixing cover 10 in a threaded manner, a rotating mechanism is arranged on each protective cover 5, a lifting mechanism is arranged on each connecting plate 3, a cleaning mechanism is arranged on the cleaning box 1, an electric push rod 8 is fixedly arranged on the top of each mounting cover 4, a first motor 9 is fixedly arranged on an output shaft of each electric push rod 8, an output shaft of each first motor 9 is fixedly connected with the top of each rotating shaft, a liquid discharge pipe 29 is fixedly communicated with the bottom of one side of the cleaning box 1, and a first valve 39 is arranged on each liquid discharge pipe 29, the outer side of the protective cover 5 is fixedly connected with an air heater, and an air outlet of the air heater is communicated with the inside of the protective cover 5.

The embodiment also provides a use method of the numerical control internal and external grinding machine convenient for centering, which is characterized by comprising the following steps:

s1, when polishing, opening a cover plate, putting a workpiece into the cover plate from the bottom of a fixed cover 10, centering the workpiece through a plurality of positioning blocks, then closing the cover plate, pushing a first motor 9 to move downwards by an electric push rod 8, driving a rotating shaft to move by the first motor 9, driving the fixed cover 10 to move downwards by the rotating shaft, enabling the inner side and the outer side of the workpiece to be in contact with the outer sides of two polishing blocks 35, driving the rotating shaft to rotate by the first motor 9, driving the fixed cover 10 to rotate by the rotating shaft, driving the workpiece to rotate by the fixed cover 10, enabling the inner side and the outer side of the workpiece to be in contact with the two polishing blocks 35, completing polishing, and taking the workpiece out after polishing;

s2, when cleaning is needed, the screw 14 is driven to rotate by the second motor 13, and the screw 14 is in threaded connection with the thread groove 19, so that the screw 14 rotates and pulls the second motor 13 to move downwards, the mounting cover 4 is driven to move downwards, the mounting cover 4 drives the protective cover 5 to move downwards, and the protective cover 5 and components in the protective cover 5 enter the cleaning box 1 to be in contact with water in the cleaning box 1 for cleaning;

s3, the gear 15 is driven to rotate through the rotation of the screw 14, the gear 15 drives the annular rack 16 to rotate, the annular rack 16 drives the protective cover 5 to rotate, the protective cover 5 rotates and faces downwards, and meanwhile, the inner side of the protective cover 5 is in contact with the roller brush 12 to clean the inner wall of the protective cover 5;

s4, the lifting plate 2 moves downwards along with the installation cover 4, the transmission rack 22 on the lifting plate 2 drives the transmission gear 20 to rotate, the transmission gear 20 drives the first bevel gear 23 to rotate, the first bevel gear 23 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the connecting rod 25 to rotate, the connecting rod 25 drives the first chain wheel 26 to rotate, the first chain wheel 26 drives the second chain wheel 27 to rotate through the chain 28, the second chain wheel 27 drives the round rod 11 to rotate, and the round rod 11 drives the roller brush 12 to rotate, so that the cleaning effect is improved;

s5, after cleaning, starting the air heater, drying the inside of the protective cover 5, opening the first valve 39, starting the water pump 31, extracting the water in the cleaning box 1, and returning the water into the cleaning box 1 after being filtered by the filter screen 32, so that the water is recycled.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.