CN112847080B

CN112847080B - High-efficient machining device based on power conversion

Info

Publication number: CN112847080B
Application number: CN202110067690.2A
Authority: CN
Inventors: 刘市
Original assignee: Guiyang Hengju Civil Air Defence Equipment Co ltd
Current assignee: Guiyang Hengju Civil Air Defence Equipment Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-12-20
Anticipated expiration: 2041-01-19
Also published as: CN112847080A

Abstract

The invention discloses a high-efficiency machining device based on power conversion, which comprises a base and a shell, wherein the shell is slidably mounted on the upper surface of the base through a sliding rail, a U-shaped plate is slidably mounted on the upper surface of the base through a sliding assembly, a machining plate is fixedly mounted on the upper surface of the U-shaped plate, and the machining plate is positioned on the left side of the shell; through setting up the casing, make the abrasive disc can carry out abrasive machining, through the recess of seting up in the casing, make the spacing ring can remove inside the casing, utilize the bar hole of seting up in the casing one, and then make the spacing ring can drive the processing board and remove, utilize the stopper that sets up on the spacing ring and then make the rotation of double sprocket can drive the spacing ring and remove, utilize the sprocket one that sets up, thereby make the motor can drive double sprocket and rotate, remove the processing board, reach the conversion utilization to unnecessary mechanical energy on the motor, energy loss is reduced.

Description

High-efficient machining device based on power conversion

Technical Field

The invention relates to the technical field of machining, in particular to a high-efficiency machining device based on power conversion.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. The machining methods can be divided into cutting machining and pressure machining, the hot machining is usually heat treatment, forging, casting and welding, and with the rapid development of modern machining, the machining technology develops rapidly, and a plurality of advanced machining technical methods such as micro machining technology, rapid prototyping technology, precise ultra-precision machining technology are gradually emerged, wherein the machining devices comprise a milling machine, a planer, a drilling machine, a boring machine, a broaching machine, a grinding machine and the like, and the grinding machine is a machine tool for grinding the surface of a workpiece by using a grinding tool.

Some high-efficiency machining devices based on power conversion currently on the market:

(1) When mechanical grinding is carried out, the movement of a processing table is generally controlled manually, so that great potential safety hazards are caused, and a motor for grinding only drives a grinding disc to rotate, so that energy cannot be supplied to other parts, and the loss of mechanical energy and electric energy is caused, so that an efficient mechanical processing device capable of converting and utilizing the lost mechanical energy is required;

(2) When the mechanical grinding is performed, the machining table and the grinding disc cannot move longitudinally, the range of the mechanical grinding is limited, and the precision of the mechanical grinding is influenced, so that a mechanical machining device capable of being adjusted longitudinally is needed.

We have therefore proposed a power conversion based high efficiency machining apparatus in order to solve the problems set forth above.

Disclosure of Invention

The invention aims to provide a high-efficiency machining device based on power conversion, and aims to solve the problems that a grinding motor provided by the background technology only drives a grinding disc to rotate, other parts cannot be powered, mechanical energy and electric energy are lost, and accordingly economic loss is caused.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high-efficient machining device based on power conversion, includes base and casing, the casing passes through slide rail slidable mounting at the upper surface of base, the upper surface of base has the U-shaped board through slip subassembly slidable mounting, the last fixed surface of U-shaped board installs processing board, processing board is located the left side of casing, the inside fixed mounting of casing has the motor, the tip fixed mounting of motor output shaft has the bull stick, the one end that the motor was kept away from to the bull stick passes shells inner wall's left surface and extends to the outside and demountable installation of casing and have the dull polish dish, the dull polish dish is located processing board directly over, the one end that the bull stick is close to the motor is cup jointed and is installed sprocket one, the inside of casing rotates through the pivot and installs sprocket, double sprocket is located sprocket one under, sprocket one is connected with double sprocket transmission through a chain, double sprocket's left surface fixed mounting has L shape pole, shells inner wall's left surface sets up flutedly, slidable mounting has the slide in the recess, the right flank fixed mounting of slide has the spacing ring, the upper and lower both ends of spacing ring right flank all fixed mounting have the inner wall of casing the left side set up a bar shape hole and a telescopic bar subassembly, the bottom of a flexible subassembly is connected with the inside bar shape hole.

Preferably, the inside of casing rotates through the connecting rod and installs sprocket two, sprocket two is located the chain double sprocket under, sprocket two is connected with double sprocket transmission through chain two, the right flank fixed mounting of sprocket two has reciprocal lead screw, the one end that sprocket two was kept away from to reciprocal lead screw is rotated and is installed the right flank at shells inner wall, shells inner wall's right flank fixed mounting has the gag lever post, the lower surface of gag lever post and the upper surface of reciprocating the last movable block of reciprocal lead screw laminate mutually, the lower fixed mounting of movable block has rack one on the reciprocal lead screw, the connecting hole has been seted up to the lower surface of casing, the gear is installed to the connecting hole internal rotation, gear and rack one mesh mutually, the spacing groove has been seted up to the upper surface of base, the spacing groove is linked together with the connecting hole, sliding mounting has rack two in the spacing groove, rack two meshes with the gear mutually.

Preferably, strip hole two has been seted up to the upper surface of processing plate, the leading flank threaded connection of processing plate has two-way threaded rod one, the leading flank of strip hole inner wall is passed and the trailing flank of rotation installation at two inner walls in strip hole to the one end of two-way threaded rod one, threaded connection has two internal thread section of thick bamboos one on the two-way threaded rod one, the left and right sides face of internal thread section of thick bamboo one laminates with the left and right sides face of two inner walls in strip hole respectively mutually, the last fixed surface of internal thread section of thick bamboo one has the clamp splice.

Preferably, the sliding assembly comprises a guide rail and a moving block, the moving block is slidably mounted on the guide rail, the guide rail is fixedly mounted on the upper surface of the base, and the upper surface of the moving block is fixedly connected with the lower surface of the U-shaped plate.

Preferably, the telescopic component comprises a telescopic rod, one end of the telescopic rod is fixedly connected to the left side face of the limiting ring, and the other end of the telescopic rod is fixedly connected to the right side face of the U-shaped plate.

Preferably, the right flank threaded connection of base has two-way threaded rod two, two-way threaded rod two pass the right flank of spacing inslot wall and rotate the left surface of installing at the spacing inslot wall, threaded connection has two internal thread section of thick bamboos on two-way threaded rod, two last fixed surface of internal thread section of thick bamboo installs the ejector pad, the lower fixed surface of rack two installs the toper piece, the upper surface of ejector pad is laminated with the lower surface of toper piece mutually, the lower surface of two internal thread sections of thick bamboos is laminated with the interior bottom surface of spacing inslot mutually.

Preferably, the right side surface of the shell is provided with a second sliding groove, the second sliding groove is communicated with the groove, a second sliding block is arranged in the second sliding groove in a sliding mode, the second sliding block is connected with a one-way threaded rod in a threaded mode, and one end of the one-way threaded rod penetrates through the right side surface of the second sliding block, extends into the groove and is rotatably installed on the left side surface of the sliding plate.

Preferably, the inner bottom surface of the limiting groove is provided with a first sliding groove, two first sliding blocks are arranged in the first sliding groove in a sliding mode, and the upper surface of the first sliding block is fixedly connected with the lower surface of the second internal thread cylinder.

Compared with the prior art, the invention has the beneficial effects that: this high-efficient machining device based on power conversion:

(1) The double-row chain wheel machining device comprises a shell, a motor arranged in the shell, a rotating rod arranged on the motor and a grinding disc arranged on each rotating rod, wherein the grinding disc can be ground, a base is arranged, a machining plate arranged on a copper drum sliding assembly on the base is used, the machining plate can drive a machining body to perform sliding grinding, a groove formed in the shell is used for enabling the machining body to perform sliding grinding, the sliding connection between the groove and a sliding plate and the connection between the sliding plate and a limiting ring are used for enabling the limiting ring to move in the shell, a first strip-shaped hole formed in the shell is used for enabling the limiting ring to move through the connection between a telescopic assembly and a U-shaped plate, the limiting ring can drive the machining plate to move, a first limiting block arranged on the limiting ring is used for enabling the double-row chain wheel arranged in the shell to be reused, an L-shaped rod arranged on the double-row chain wheel is used for enabling the motor to rotate, the double-row chain wheel is used for driving the double-row chain wheel to move, and the double-row chain wheel is used for converting the energy loss of the motor;

(2) The second chain wheel is arranged, the second chain wheel is connected with the connecting rod in a rotating mode, the reciprocating screw rod arranged on the second chain wheel is reused, meanwhile, the second chain wheel is connected with the double-row chain wheel in a transmission mode, the double-row chain wheel can drive the reciprocating screw rod to rotate, the connecting hole formed in the shell is used, the gear arranged in the connecting hole in a rotating mode is reused, the first rack arranged on the movable block of the reciprocating screw rod is reused, meshing between the first rack and the gear is used, further, the gear can be driven to rotate by rotating the reciprocating screw rod, the second rack arranged in the limiting groove in a sliding mode is reused by utilizing the limiting groove formed in the base, meshing between the second rack and the gear is used, and therefore the gear can drive the shell to move on the base, the effect of longitudinal movement is achieved, and the precision of mechanical grinding is improved.

Drawings

FIG. 1 is a schematic overall front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic top view of the processing plate of the present invention;

FIG. 4 is a schematic diagram of a right-view structure of a joint of the limiting ring and the limiting block according to the present invention;

FIG. 5 is an enlarged schematic view of FIG. 1 at A according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 1 at B;

FIG. 7 is a left side view schematic view of the joint between the twin row sprocket and the L-bar of the present invention.

In the figure: 1. a base; 2. a housing; 3. a U-shaped plate; 4. processing a plate; 5. a motor; 6. a rotating rod; 7. a sanding disc; 8. a chain wheel I; 9. double-row chain wheels; 10. an L-shaped rod; 11. a slide plate; 12. a limiting ring; 13. a limiting block; 14. a second chain wheel; 15. a reciprocating screw rod; 16. a limiting rod; 17. a first rack; 18. a gear; 19. a second rack; 20. a first bidirectional threaded rod; 21. a first internal thread cylinder; 22. a clamping block; 23. a guide rail; 24. a moving block; 25. a telescopic rod; 26. a two-way threaded rod II; 27. a second internal thread cylinder; 28. a push block; 29. a conical block; 30. a second sliding block; 31. a one-way threaded rod; 32. a first sliding block; 33. a groove; 34. a strip-shaped hole I; 35. a limiting groove; 36. connecting holes; 37. a strip-shaped hole II; 38. a second chute; 39. the first sliding groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a high-efficient machining device based on power conversion, including base 1 and casing 2, casing 2 passes through slide rail slidable mounting at the upper surface of base 1, the upper surface of base 1 has U-shaped plate 3 through slip subassembly slidable mounting, the last fixed surface of U-shaped plate 3 installs processing plate 4, processing plate 4 is located the left side of casing 2, the inside fixed mounting of casing 2 has motor 5, the tip fixed mounting of motor 5 output shaft has bull stick 6, the one end that bull stick 6 kept away from motor 5 passes the left surface of casing 2 inner wall and extends to the outside of casing 2 and demountable installation has dull polish disc 7, dull polish disc 7 is located processing plate 4 directly over, bull stick 6 is close to the one end of motor 5 and cup joints and installs sprocket one 8, the inside of casing 2 is rotated through the pivot and is installed double sprocket 9, double sprocket 9 is located sprocket 8 directly under, sprocket 8 is connected with double sprocket 9 through the transmission of chain one, the left surface fixed mounting of sprocket 9 has L shape pole 10, the left side of casing 2 inner wall is seted up fluted 33, slidable mounting has slide 11 in the recess 33, slide 11's right side fixed mounting has right side 12, the inside of spacing ring 12 is located the bar 12 and the side of the bar-shaped plate 12 is connected through the bar subassembly of the inside lateral surface of the telescopic hole 34 that the stopper 12 that the right side of the inside of the stopper 2 is connected, the stopper component, the side of the stopper 12, the telescopic ring 12, the side of the inside of the side of the subassembly is connected of the subassembly 13.

A second chain wheel 14 is rotatably installed in the shell 2 through a connecting rod, the second chain wheel 14 is positioned right below a double-row chain wheel 9 of a chain, the second chain wheel 14 is in transmission connection with the double-row chain wheel 9 through a second chain, a reciprocating screw rod 15 is fixedly installed on the right side surface of the second chain wheel 14 of the chain, one end, far away from the second chain wheel 14, of the reciprocating screw rod 15 is rotatably installed on the right side surface of the inner wall of the shell 2, a limiting rod 16 is fixedly installed on the right side surface of the inner wall of the shell 2, the lower surface of the limiting rod 16 is attached to the upper surface of a movable block on the reciprocating screw rod 15, a first rack 17 is fixedly installed on the lower surface of the movable block on the reciprocating screw rod 15, a connecting hole 36 is formed in the lower surface of the shell 2, a gear 18 is rotatably installed in the connecting hole 36, the gear 18 is meshed with the first rack 17, a limiting groove 35 is formed in the upper surface of the base 1, the limiting groove 35 is communicated with the connecting hole 36, and a second rack 19 is slidably installed in the limiting groove 35, the second rack 19 is meshed with the gear 18, the second chain wheel 14 is arranged, the reciprocating screw rod 15 arranged on the second chain wheel 14 is utilized, the second chain wheel 14 is in transmission connection with the double-row chain wheel 9, the double-row chain wheel 9 can drive the reciprocating screw rod 15 to rotate, the limiting rod 16 is arranged, the limiting rod 16 is utilized to be attached to a movable block on the reciprocating screw rod 15, meanwhile, the first rack 17 arranged on the movable block is utilized, the reciprocating screw rod 15 can drive the first rack 17 to move, the gear 18 is arranged, the second rack 19 arranged in the limiting groove 35 is utilized, the first rack 17 and the second rack 19 are meshed with the gear 18, when the first rack 17 drives the gear 18 to rotate, the gear 18 can drive the shell 2 to move on the base 1, and the processing range of the device is widened.

Two 37 bar holes have been seted up to the upper surface of processing plate 4, the leading flank threaded connection of processing plate 4 has two-way threaded rod one 20, the leading flank of bar hole inner wall is passed and the rotation is installed in the trailing flank of bar hole two 37 inner walls to the one end of two-way threaded rod one 20, threaded connection has two internal thread section of thick bamboo one 21 on the two-way threaded rod one 20, the left and right sides face of internal thread section of thick bamboo one 21 laminates with the left and right sides face of bar hole two 37 inner walls respectively, the last fixed surface of internal thread section of thick bamboo one 21 installs clamp splice 22, through setting up two-way threaded rod one 20, utilize the threaded connection between two-way threaded rod one 20 and the internal thread section of thick bamboo, the laminating of internal thread section of thick bamboo one 21 and bar hole inner wall is recycled, utilize the clamp splice 22 that sets up on the internal thread section of thick bamboo one 21 simultaneously, thereby can make internal thread section of thick bamboo one 21 drive clamp splice 22 relative motion through rotating two-way threaded rod one 20, process the body, the security that has improved the device.

The sliding assembly comprises a guide rail 23 and a moving block 24, the moving block 24 is slidably mounted on the guide rail 23, the guide rail 23 is fixedly mounted on the upper surface of the base 1, the upper surface of the moving block 24 is fixedly connected with the lower surface of the U-shaped plate 3, through the arrangement of the guide rail 23, the sliding connection between the guide rail 23 and the moving block 24 is utilized, the connection between the guide rail 23 and the base 1 is reused, meanwhile, the connection between the moving block 24 and the U-shaped plate 3 is utilized, so that the U-shaped plate 3 can move on the base 1, the processing plate 4 is driven to move, and the processing precision of the device is improved.

The telescopic assembly comprises a telescopic rod 25, one end of the telescopic rod 25 is fixedly connected to the left side face of the limiting ring 12, the other end of the telescopic rod 25 is fixedly connected to the right side face of the U-shaped plate 3, and by means of the telescopic rod 25, the telescopic rod 25 is connected with the U-shaped plate 3 and the limiting ring 12, so that the shell 2 is guaranteed not to affect the work of the processing plate 4 when sliding, and the practicability of the device is improved.

The right side surface of base 1 threaded connection has two-way threaded rod two 26, two-way threaded rod two 26 passes the right flank of spacing groove 35 inner wall and rotates the left flank of installing at spacing groove 35 inner wall, threaded connection has two 27 of internal thread section of thick bamboo on two-way threaded rod two 26, the last fixed surface of two 27 of internal thread section of thick bamboo installs ejector pad 28, the lower fixed surface of two 19 racks has conical block 29, the upper surface of ejector pad 28 and the lower surface of conical block 29 laminate mutually, the lower surface of two 27 of internal thread section of thick bamboo laminates with the interior bottom surface of spacing groove 35 mutually, through setting up two 26 of two-way threaded rod, utilize threaded connection between two 26 of two and two 27 of internal thread section of thick bamboos, reuse the ejector pad 28 that sets up on two 27 of internal thread section of thick bamboos, reuse the conical block 29 that sets up on two 19 of racks, utilize the laminating between ejector pad 28 and the conical block 29 simultaneously, thereby can drive two 19 of racks to reciprocate through rotating two 26 of two-way threaded rod, control the removal of casing 2 two, the practicality of the device has been improved.

Two 38 chutes have been seted up to the right flank of casing 2, two 38 chutes are linked together with recess 33, slidable mounting has two 30 sliders in two 38 chutes, threaded connection has one-way threaded rod 31 on two 30 sliders, the right flank of two 30 sliders is passed to one end of one-way threaded rod 31 and extends to in the recess 33 and rotate the left flank of installing at slide 11, through setting up two 30 sliders, utilize threaded connection's one-way threaded rod 31 on two 30 sliders, recycle being connected between one-way threaded rod 31 and the slide 11, thereby can control the removal of processing board 4 through rotating one-way threaded rod 31, the device's practicality has been improved.

First spout 39 has been seted up to the interior bottom surface of spacing groove 35, and slidable mounting has two first sliders 32 in the spout 39, and the upper surface of first slider 32 is connected with the lower fixed surface of a second internal thread section of thick bamboo 27, through setting up recess 33 one, utilizes the first slip of recess 33 between one and the slider 32 to be connected, recycles being connected between a 32 slider and the second internal thread section of thick bamboo 27 to make a 32 slider can prevent that second internal thread section of thick bamboo 27 from taking place to rotate, improved the device's security.

The working principle of the embodiment is as follows: when the high-efficiency machining device based on power conversion is used, as shown in fig. 1 and 5-6, a machined body is firstly placed on a machining plate 4, then a first bidirectional threaded rod 20 is rotated to enable the first bidirectional threaded rod 20 to drive two clamping blocks 22 to move relatively to clamp the machined body, then a unidirectional threaded rod 31 is selected to be adjusted according to the machining requirements of the machined body, the unidirectional threaded rod 31 is rotated to enable the unidirectional threaded rod 31 to push a sliding plate 11 to move rightwards so as to drive a limiting ring 12 to be attached to an L-shaped rod 10, then a motor 5 is started to drive a sanding disc 7 to grind the machined body, the motor 5 drives a double-row chain wheel 9 to rotate through a first chain wheel 8, then the chain wheel 9 drives the L-shaped rod 10 to rotate, as shown in fig. 4, the double-row chain wheel 13 arranged on the limiting ring 12 can be used, when the L-shaped rod 10 is contacted with the limiting block 13 arranged at the upper end of the limiting ring 12, the limiting ring 12 drives the U-shaped plate 3 to move backwards, when the L-shaped rod 10 is contacted with the limiting block 13 arranged at the lower end of the limiting ring 12, chips can be used for driving the U-shaped plate 3 to move forwards and the strips to be used for driving the U-shaped plates to fall off when the strips which fall off during machining of the machining holes 37;

as shown in fig. 1 and fig. 6, when a left-right moving process is required, the two-way threaded rod two 26 can be rotated to drive the two pushing blocks 28 to move relatively, so as to push the conical block 29 to move upward, so that the rack two 19 is engaged with the gear 18, at this time, the sprocket two 14 drives the reciprocating screw rod 15 to rotate through the double-row sprocket 9, the movable block on the reciprocating screw rod 15 can drive the rack one 17 to move left and right through the arranged limit rod 16, the rack one 17 can drive the gear 18 to rotate, and the housing 2 is slidably mounted on the base 1 through the slide rail, so that the purpose of moving the housing 2 to drive the sanding disc 7 to move left and right can be achieved through the rotation of the gear 18, which is the working process of the whole device, and the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims

1. The utility model provides a high-efficient machining device based on power conversion, includes base (1) and casing (2), casing (2) are through slide rail slidable mounting at the upper surface of base (1), the upper surface of base (1) has U-shaped plate (3) through slip subassembly slidable mounting, the last fixed surface of U-shaped plate (3) installs processing board (4), processing board (4) are located the left side of casing (2), the inside fixed mounting of casing (2) has motor (5), the tip fixed mounting of motor (5) output shaft has bull stick (6), the one end that motor (5) were kept away from in bull stick (6) is passed the left surface of casing (2) inner wall and is extended to the outside and demountable installation of casing (2) and have abrasive disc (7), abrasive disc (7) are located processing board (4) directly over, the one end that bull stick (6) are close to motor (5) is installed sprocket (8), the inside of casing (2) is rotated through the pivot and is installed sprocket (9), double sprocket (9) are located one side of double sprocket (8) and are connected through the drive sprocket (9), the left side sprocket (9) and the drive sprocket (9) and the right-side chain wheel (10) of double sprocket (10) are connected one side chain wheel (10), a sliding plate (11) is slidably mounted in the groove (33), a limiting ring (12) is fixedly mounted on the right side face of the sliding plate (11), limiting blocks (13) are fixedly mounted at the upper end and the lower end of the right side face of the limiting ring (12), a first strip-shaped hole (34) is formed in the left side face of the inner wall of the shell (2), the bottom end of the left side face of the limiting ring (12) is connected with the right side face of the U-shaped plate (3) through a telescopic assembly, and the telescopic assembly is located inside the first strip-shaped hole (34);

the inside of the shell (2) is rotatably provided with a second chain wheel (14) through a connecting rod, the second chain wheel (14) is positioned under the double-row chain wheel (9), the second chain wheel (14) is in transmission connection with the double-row chain wheel (9) through a second chain, the right side surface of the second chain wheel (14) is fixedly provided with a reciprocating screw rod (15), one end, far away from the second chain wheel (14), of the reciprocating screw rod (15) is rotatably arranged on the right side surface of the inner wall of the shell (2), a limiting rod (16) is fixedly arranged on the right side surface of the inner wall of the shell (2), the lower surface of the limiting rod (16) is attached to the upper surface of a movable block on the reciprocating screw rod (15), the lower surface of the movable block on the reciprocating screw rod (15) is fixedly provided with a first rack (17), the lower surface of the shell (2) is provided with a connecting hole (36), a gear (18) is rotatably arranged in the connecting hole (36), the gear (18) is meshed with the first rack (17), the upper surface of the base (1) is provided with a limiting groove (35), the connecting hole (35) is communicated with the connecting hole (36), and the second rack (19) is slidably arranged in the second rack groove (19) and meshed with the second rack (19);

a bar-shaped hole II (37) is formed in the upper surface of the processing plate (4), a bidirectional threaded rod I (20) is in threaded connection with the front side surface of the inner wall of the bar-shaped hole I (4), one end of the bidirectional threaded rod I (20) penetrates through the front side surface of the inner wall of the bar-shaped hole I and is rotatably installed on the rear side surface of the inner wall of the bar-shaped hole II (37), two internal thread barrels I (21) are in threaded connection with the bidirectional threaded rod I (20), the left side surface and the right side surface of each internal thread barrel I (21) are respectively attached to the left side surface and the right side surface of the inner wall of the bar-shaped hole II (37), and a clamping block (22) is fixedly installed on the upper surface of each internal thread barrel I (21);

the sliding assembly comprises a guide rail (23) and a moving block (24), the moving block (24) is slidably mounted on the guide rail (23), the guide rail (23) is fixedly mounted on the upper surface of the base (1), and the upper surface of the moving block (24) is fixedly connected with the lower surface of the U-shaped plate (3);

the telescopic assembly comprises a telescopic rod (25), one end of the telescopic rod (25) is fixedly connected to the left side face of the limiting ring (12), and the other end of the telescopic rod (25) is fixedly connected to the right side face of the U-shaped plate (3);

the right side surface of the base (1) is in threaded connection with a two-way threaded rod II (26), the two-way threaded rod II (26) penetrates through the right side surface of the inner wall of the limiting groove (35) and is rotatably installed on the left side surface of the inner wall of the limiting groove (35), an internal thread barrel II (27) is in threaded connection with the two-way threaded rod II (26), a push block (28) is fixedly installed on the upper surface of the internal thread barrel II (27), a conical block (29) is fixedly installed on the lower surface of the rack II (19), the upper surface of the push block (28) is attached to the lower surface of the conical block (29), and the lower surface of the internal thread barrel II (27) is attached to the inner bottom surface of the limiting groove (35);

a second sliding groove (38) is formed in the right side surface of the shell (2), the second sliding groove (38) is communicated with the groove (33), a second sliding block (30) is installed in the second sliding groove (38) in a sliding mode, a one-way threaded rod (31) is connected to the second sliding block (30) in a threaded mode, one end of the one-way threaded rod (31) penetrates through the right side surface of the second sliding block (30), extends into the groove (33) and is installed on the left side surface of the sliding plate (11) in a rotating mode;

the inner bottom surface of the limiting groove (35) is provided with a first sliding groove (39), two first sliding blocks (32) are arranged in the first sliding groove (39) in a sliding mode, and the upper surfaces of the first sliding blocks (32) are fixedly connected with the lower surface of the second internal thread cylinder (27);

when in use, the processing body is firstly placed on the processing plate (4), and then the first bidirectional threaded rod (20) is rotated to enable the first bidirectional threaded rod (20) to drive the two clamping blocks (22) to move relatively, the processing body is clamped, then the one-way threaded rod (31) is selected to be adjusted according to the processing requirement of the processing body, the one-way threaded rod (31) is rotated to drive the slide plate (11) to move rightwards, so as to drive the jointing between the limiting ring (12) and the L-shaped rod (10), then the motor (5) is started to drive the sanding disc (7) to grind the processed body, at the moment, the motor (5) drives the double-row chain wheel (9) to rotate through the first chain wheel (8), then the double-row chain wheel (9) drives the L-shaped rod (10) to rotate, when the L-shaped rod (10) is contacted with the limit block (13) at the upper end of the limit ring (12) through the limit block (13) arranged on the limit ring (12), the limiting ring (12) drives the U-shaped plate (3) to move backwards, when the L-shaped rod (10) is contacted with the limiting block (13) at the lower end of the limiting ring (12), the limiting block (13) drives the U-shaped plate (3) to move forwards so as to drive the processing body to move forwards and backwards, scraps generated during processing can fall into the U-shaped plate (3) through the second strip-shaped hole (37);

when the grinding disc (7) is required to move left and right, the two-way threaded rod II (26) can be rotated to drive the two push blocks (28) to move relatively, so that the conical block (29) can be pushed to move upwards, the rack II (19) is meshed with the gear (18), the chain wheel II (14) drives the reciprocating screw rod (15) to rotate through the double-row chain wheel (9), the movable block on the reciprocating screw rod (15) can drive the rack I (17) to move left and right through the arranged limiting rod (16), the rack I (17) can drive the gear (18) to rotate, and the shell (2) is slidably mounted on the base (1) through the sliding rail, so that the aim of driving the grinding disc (7) to move left and right through the gear (18) can be achieved through rotation of the gear (18).