CN112872413A

CN112872413A - Metal processing digit control machine tool of convenient maintenance

Info

Publication number: CN112872413A
Application number: CN202110038020.8A
Authority: CN
Inventors: 王雨龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-06-01

Abstract

The invention relates to the related technical field of metal processing numerical control machine tools, in particular to a metal processing numerical control machine tool convenient to maintain, which comprises a workbench, wherein supporting legs are inserted at the corners of the bottom of the workbench, a supporting seat is fixedly connected to one side of the top of the workbench, a lifting mechanism is arranged on the inner side of the supporting seat, a connecting frame is arranged at the top of the lifting mechanism, an auxiliary mechanism is arranged on the inner wall of the connecting frame, the connecting frame is L-shaped, a supporting column is fixedly connected to the bottom of the connecting frame, a circular disc is rotatably sleeved at the position, close to the lower part, of the outer side of the supporting column, a plurality of object placing through holes are formed in the inner side of the circular disc at equal intervals, and an elastic mechanism is arranged on the inner sides of the object placing through holes. Secondly, can collect the later stage recycle of being convenient for with the metal fillings after the processing.

Description

Metal processing digit control machine tool of convenient maintenance

Technical Field

The invention relates to the technical field of metal processing numerical control machine tools, in particular to a metal processing numerical control machine tool convenient to maintain.

Background

Machine tools, which are machines for manufacturing machines, also called machine tools or machine tools, are traditionally called machine tools for short, and are generally classified into metal cutting machines, forging machines, woodworking machines, and the like, and many methods for machining machine parts in modern machine manufacturing are used: in addition to cutting, casting, forging, welding, stamping, extruding and the like, but all parts with high precision requirements and fine surface roughness requirements generally need to be finally machined by a cutting method on a machine tool, the machine tool plays an important role in the construction of national economy and modernization, wherein a metal working machine can correspondingly machine by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like, the machine tool is the most widely used machine tool in a mechanical manufacturing and repairing factory, an important component part in the machine tool during drilling in the metal working machine tool is an important component part in the machine tool, the drill bit is worn quickly after long-time work, and needs to be replaced frequently, a connecting piece for connecting the drill bit is clamped for a long time, so that the machine tool is easy to wear and damage, the maintenance time is long, and the number of the existing machine tool drill bit connecting pieces is fixed, the machine tool can be paralyzed and can not work normally under the condition of maintenance and, secondly, metal chips left after machining cannot be collected, are prone to being left on the internal structure of the machine tool, and can affect the use of the internal structure of the machine tool for a long time, so that work is affected.

Disclosure of Invention

The invention aims to solve the defects in the background technology and provides a metal processing numerical control machine tool convenient to maintain.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a metal processing numerical control machine tool convenient to maintain comprises a workbench, supporting legs are inserted at corners of the bottom of the workbench, a supporting seat is fixedly connected to one side of the top of the workbench, a lifting mechanism is arranged on the inner side of the supporting seat, a connecting frame is arranged at the top of the lifting mechanism, an auxiliary mechanism is arranged on the inner wall of the connecting frame, the connecting frame is L-shaped, a supporting column is fixedly connected to the bottom of the connecting frame, a disc is rotatably sleeved at the outer side of the supporting column close to the lower position, a plurality of object placing through holes are formed in the inner side of the disc at equal intervals along an annular shape, an elastic mechanism is arranged on the inner sides of the object placing through holes, a rotating shaft is inserted in the inner side of the elastic mechanism in a rotating manner, a drill bit sleeve is installed at the bottom end of the rotating, a limiting rod is inserted above the inner side of the supporting column, a connecting seat is arranged on the outer surface of the limiting rod and is in movable contact with the limiting rod, the connecting seat is slidably sleeved on the outer side of the supporting column, a motor frame extends out of the outer wall of the connecting seat, a motor is clamped on the inner side of the motor frame, a motor output shaft is fixedly connected with a mounting sleeve, the mounting sleeve is clamped with one rotating shaft, a scrap falling table is fixedly clamped at the middle position of the top of the workbench, erecting mechanisms are arranged on two sides of the top of the scrap falling table, a placing seat is arranged at the top of the erecting mechanisms, a plurality of groups of strip-shaped through grooves are formed in the inner side of the placing seat at equal intervals, cross beams are arranged on two side edges of the top of the placing seat, the two cross beams are fixedly connected with the workbench, a rolling mechanism is arranged, and the clamping mechanism comprises a rectangular frame, transverse plates extend from the inner walls of two ends of the rectangular frame, chip collecting mechanisms are arranged on the inner sides of the two transverse plates together, a notch through groove is formed in the bottom of the inner side of the chip falling table, and the chip collecting mechanisms are arranged at the bottom of the chip falling table.

Preferably, the lifting mechanism comprises a hydraulic cylinder clamped on the inner side of the supporting seat, and the telescopic end of the hydraulic cylinder is fixedly connected with the connecting frame.

Preferably, the auxiliary mechanism comprises sliding strips fixedly connected to two ends of the outer side of the supporting seat respectively, the sliding strips are connected to the outer side of the sliding strips in a sliding mode, the sliding seats are connected to the outer wall of one end, far away from the sliding strips, of the sliding seats in a fixed mode, and the fixing seats are fixedly connected with the connecting frame.

Preferably, the elastic mechanism comprises connecting blocks fixedly clamped on the inner wall of the object placing through hole along the annular at equal intervals, a plurality of groups of U-shaped rods are inserted into the inner sides of the connecting blocks in a sliding mode, springs are sleeved at the ends, far away from the connecting blocks, of the outer sides of the U-shaped rods, a telescopic sleeve is connected to one end, far away from the connecting blocks, of each U-shaped rod, and the rotary shaft is connected to the inner side of the telescopic sleeve in a rotating mode.

Preferably, the erection mechanism comprises fixed beams which are respectively and fixedly connected to the top of the workbench and close to the two sides of the scrap falling table, a reinforcing table is erected between the fixed beams, and the bottom of the placing seat is fixedly connected to the top of the reinforcing table.

Preferably, the rolling mechanism comprises a fixed frame which slides on the inner sides of the two cross beams, and the inner side of the fixed frame is rotatably connected with a plurality of rolling shafts along the horizontal direction.

Preferably, fixture is including setting up the curve board at two diaphragm inboards jointly, the equal screw thread cartridge in inboard that the curve board corresponds two diaphragms has the multiunit bolt, the bottom and the inboard bottom laminating of bits platform of falling of curve board, two one side outer wall of diaphragm all is provided with actuating mechanism, actuating mechanism includes the cylinder, the flexible end and the diaphragm outer wall fixed connection of cylinder, the cylinder outside cover is equipped with the mount, mount and workstation fixed connection.

Preferably, collection bits mechanism includes the base of fixed connection in the platform bottom that falls bits, the spout has all been seted up to the base both sides, and is two sets of the inboard equal sliding connection of spout has L shape slider, and is two sets of the equal fixedly connected with collection bits case in L shape slider top, the bottom of collection bits case slides the laminating in the outside of base, one side outer wall fixed mounting of collection bits case has the handle.

Preferably, the top cover that the support column outside is close to the disc is equipped with fixed cover, the fixed cover outside clamps along the annular equidistance has the multiunit elastic steel piece, elastic steel piece all is located between two adjacent telescopic sleeves, the multiunit elastic steel piece all with telescopic sleeve surface movable contact.

Compared with the prior art, the invention has the following beneficial effects: 1. set up the disc through rotating in the outside at the support column, use the drill bit for a long time under, the drill bit receives quick change regulation that wearing and tearing can be convenient for, the lifting connecting seat makes installation sleeve break away from with the rotation axis, alright the rotation disc rotates the rotation axis of opposite side and drill bit cover and drill bit to the telescopic below of installation, carry out the joint, the drill bit is changed in convenient maintenance of this mode, the operation that can not long-time stop device, thereby work efficiency obtains the guarantee, meanwhile, the drill bit and the mutual joint of drill bit cover, also be convenient for take off the drill bit of wearing and tearing from the drill bit cover inboard on the disc, install new drill bit cover.

2. Through setting up elastic mechanism, can be convenient for parts such as disc when pushing down and driling to metal material, all the other multiunit drill bits are under the condition of not using, rise and move to the inboard of disc to can not hinder main drill bit drilling, all the other drill bits are under the suit of protective sleeve, contact with metal material after pushing down, have a buffer space that shifts up under the effect of spring, just fix a position metal material, kill two birds with one stone.

3. Through setting up fixture and actuating mechanism can be convenient for carry out the centre gripping to metal material's side bottom and fix, during the use, drive actuating cylinder and drive diaphragm and fixed frame and remove toward U-shaped board one side, can fix metal material's border to stability can be improved when drilling.

4. Can collect the metal fillings when drilling through set up the bits platform that falls in the workstation inboard, on the other hand also scrapes the metal of the inboard bottom of the bits platform that falls at the in-process curve board that fixture removed, and the back of processing can drive the curve board through the drive of cylinder and clear up the bits platform inboard that falls.

5. Through setting up the logical groove of breach through the one side at the bits platform that falls, can scrape the metal fillings that fall and fall so far to fall into the inboard of collection bits case, the user of being convenient for later stage is handled it.

6. Through setting up rolling mechanism and can placing metal material on its surface, during drilling, can alleviate user's transport to independently remove carries out the drilling work of different positions to heavier metal material effectively

7. Can be convenient for drive parts such as link and support column through setting up elevating system and move down to punch to metal material, fixing base and draw runner can be convenient for improve the steady effect of link, make more firm at the during operation.

Drawings

FIG. 1 is a schematic view of a metal working machine tool according to the present invention, which is convenient for maintenance;

FIG. 2 is a partial structural cross-sectional view of a metal working numerical control machine tool of the present invention which is convenient for maintenance;

FIG. 3 is a sectional view of a portion of the structure of a metal working numerical control machine tool of the present invention which is easy to maintain;

FIG. 4 is a schematic structural view of a chip falling table and a curve plate of a metal processing numerical control machine tool convenient to maintain according to the present invention;

FIG. 5 is a cross-sectional view of the internal structure of a chip falling table of a metal working numerical control machine tool, which is convenient to maintain, according to the present invention;

FIG. 6 is a schematic view of the internal sliding connection structure of the base and the chip collecting box of the metal processing numerical control machine tool convenient for maintenance according to the present invention;

FIG. 7 is a schematic view of the rolling mechanism of a metal working numerical control machine tool according to the present invention, which is convenient for maintenance;

FIG. 8 is an enlarged view of the portion A of the NC machine tool for metal processing according to the invention, which is convenient to maintain.

In the figure: 1. a work table; 2. a U-shaped plate; 3. a fixed mount; 4. a supporting seat; 5. a scrap falling table; 6. a scrap collecting box; 7. a base; 8. a rectangular frame; 9. a disc; 10. a motor frame; 11. a motor; 12. a connecting frame; 13. a fixed seat; 14. a U-shaped rod; 15. installing a sleeve; 16. a support pillar; 17. a connecting seat; 18. a limiting rod; 19. a rotating shaft; 20. a protective sleeve; 21. fixing a sleeve; 22. an elastic steel sheet; 23. a hydraulic cylinder; 24. a curve plate; 25. a transverse plate; 26. a cylinder; 27. a bolt; 28. a notch through groove; 29. an L-shaped slider; 30. a chute; 31. a handle; 32. a fixing frame; 33. a placing seat; 34. a strip-shaped through groove; 35. a cross beam; 36. a roller; 37. connecting blocks; 38. a reinforcing table; 39. a fixed beam; 40. supporting legs; 41. a slide bar; 42. a telescopic sleeve; 43. a bit sleeve; 44. a drill bit; 45. a spring.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in figures 1-8, a metal processing numerical control machine tool convenient for maintenance comprises a workbench 1, supporting legs 40 are inserted at the corners of the bottom of the workbench 1, a supporting seat 4 is fixedly connected to one side of the top of the workbench 1, a lifting mechanism is arranged on the inner side of the supporting seat 4, a connecting frame 12 is arranged at the top of the lifting mechanism, an auxiliary mechanism is arranged on the inner wall of the connecting frame 12, the connecting frame 12 is L-shaped, a supporting column 16 is fixedly connected to the bottom of the connecting frame 12, a disc 9 is rotatably sleeved on the outer side of the supporting column 16 near the lower position, a plurality of object placing through holes are formed in the inner side of the disc 9 at equal intervals along a ring shape, elastic mechanisms are arranged on the inner sides of the object placing through holes, a rotating shaft 19 is inserted on the inner sides of the elastic mechanisms in a rotating manner, a drill sleeve 43 is installed, a limiting rod 18 is inserted above the inner side of a supporting column 16, a connecting seat 17 is arranged on the outer surface of the limiting rod 18, the connecting seat 17 is movably contacted with the limiting rod 18, the connecting seat 17 is sleeved on the outer side of the supporting column 16 in a sliding manner, a motor frame 10 extends out of the outer wall of the connecting seat 17, a motor 11 is clamped on the inner side of the motor frame 10, an output shaft of the motor 11 is fixedly connected with a mounting sleeve 15, the mounting sleeve 15 is clamped with one rotating shaft 19, a scrap falling table 5 is fixedly clamped at the middle position of the top of a workbench 1, erecting mechanisms are arranged on two sides of the top of the scrap falling table 5, a placing seat 33 is arranged on the top of the erecting mechanisms, a plurality of groups of strip-shaped through grooves 34 are arranged on the inner side of the placing seat 33 at equal intervals, cross beams 35 are arranged on two side edges of the top of the placing seat, and a clamping mechanism is arranged on the outer side of the other cross beam 35 and comprises a rectangular frame 8, transverse plates 25 are extended from the inner walls of the two ends of the rectangular frame 8, chip collecting mechanisms are jointly arranged on the inner sides of the two transverse plates 25, a notch through groove 28 is formed in the bottom of the inner side of the chip falling platform 5, and a chip collecting mechanism is arranged at the bottom of the chip falling platform 5.

The supporting legs 40 are arranged to improve the stability of the workbench 1 during drilling, the supporting seat 4 is arranged on one side of the workbench 1 to facilitate clamping of the lifting mechanism, so that the lifting mechanism is stable in the lifting process, the connecting frame 12 is convenient to connect the supporting column 16, the supporting column 16 is connected with the lifting mechanism to drive the lifting mechanism to move in the vertical direction, the supporting column 16 enables the disc 9 to rotate and be sleeved on the outer side of the supporting column 16, the disc 9 rotates to achieve the purpose of replacing the drill bit 44, the rotating shaft 19 can be connected with the mounting sleeve 15 to enable the drill bit 44 to be connected with the rotating shaft 19 to perform drilling work, the connecting seat 17 is convenient to move the motor frame 10, so that the motor 11 and the mounting sleeve 15 move on the outer side of the supporting column 16 to facilitate separation from the rotating shaft 19, when the worn drill bit 44 is replaced, only need with drill bit 44 from drill bit holder 43 extract can, drill bit holder 43 can separate with rotation axis 15 to be convenient for maintain and change drill bit holder 43, the bits platform 5 that falls is convenient for collect the metal fillings, crossbeam 35 can carry out the stable support to the mechanism of erectting, thereby be convenient for stably place metal material, rectangular frame 8 and U-shaped board 2 can be convenient for carry out centre gripping and fixed to metal material side bottom.

The lifting mechanism comprises a hydraulic cylinder 23 clamped on the inner side of the supporting seat 4, the telescopic end of the hydraulic cylinder 23 is fixedly connected with the connecting frame 12, and the connecting frame 12 is driven to move up and down by the driving of the hydraulic cylinder 23, so that the purpose of drilling is achieved.

The complementary unit is including the draw runner 41 of difference fixed connection at 4 outside both ends of supporting seat, and the equal sliding connection in the outside of two sets of draw runners 41 has the slide, and the equal fixedly connected with fixing base 13 of the one end outer wall of draw runner 41 is kept away from to two sets of slides, and fixing base 13 and link 12 fixed connection, slide can make fixing base 13 consolidate link 12 in the outside of draw runner 41, improve stability.

Elastic mechanism includes along the connecting block 37 of thing through-hole inner wall is being put to fixed the clamping of annular equidistance, the inboard equal slip cartridge of multiunit connecting block 37 has U-shaped pole 14, the one end that connecting block 37 was kept away from each other in many U-shaped pole 14 outsides is all overlapped and is equipped with spring 45, the one end that connecting block 37 was kept away from to many U-shaped poles 14 is connected with telescope tube 42 jointly, rotation axis 19 rotates the inboard of connecting at telescope tube 42, when not using all the other drill bits 44, under the self-action of accessible spring 45, drive all the other protective sleeve 20 and move down, the space of utilizing its buffering can not hinder main drill bit 44 drilling on the one hand, can fix a position metal material again, protective sleeve 20 can follow the drill bit 44 outside and dismantle, thereby the later stage.

The erection mechanism comprises fixed beams 39 which are respectively fixedly connected to the top of the workbench 1 and are close to the two sides of the scrap falling platform 5, a reinforcing platform 38 is erected between the two fixed beams 39, the bottom of the placing seat 33 is fixedly connected to the top of the reinforcing platform 38, and the reinforcing platform 38 can improve the bearing capacity of the placing seat 33, so that the placing seat 33 cannot shake, and the cracking is unstable and the like when a heavy metal material is placed.

The rolling mechanism comprises a fixing frame 32 sliding on the inner sides of two cross beams 35, a plurality of rolling shafts 36 are rotatably connected to the inner side of the fixing frame 32 along the horizontal direction, and the fixing frame 32 is convenient for the plurality of rolling shafts 36 to be rotatably installed in the cross beams 35, so that the plurality of rolling shafts 36 are driven to roll together.

The clamping mechanism comprises a curve plate 24 which is jointly arranged on the inner sides of two transverse plates 25, a plurality of groups of bolts 27 are inserted into the inner sides of the curve plate 24 corresponding to the two transverse plates 25 in a threaded manner, the bottom of the curve plate 24 is attached to the bottom of the inner side of the scrap falling table 5, a driving mechanism is arranged on the outer wall of one side of the two transverse plates 25 and comprises an air cylinder 26, the telescopic end of the air cylinder 26 is fixedly connected with the outer wall of the transverse plates 25, a fixed frame 3 is sleeved on the outer side of the air cylinder 26, the fixed frame 3 is fixedly connected with the workbench 1, metal scraps can be cleaned without accumulation by arranging the curve plate 24, a common planar scraper easily causes the phenomena of planar fatigue and the like when more metal scraps are accumulated, the common planar scraper is movably arranged on the inner sides of the corresponding two transverse plates 25 through a plurality of bolts 27, if the common planar scraper is damaged, the common scraper, thereby facilitating side-to-bottom clamping of the metal material placed on top of the roller 36.

Chip collecting mechanism includes base 7 of fixed connection in 5 bottoms of chip platform that falls, spout 30 has all been seted up to base 7 both sides, the equal sliding connection in two sets of spout 30 inboards has L shape slider 29, the equal fixedly connected with in two sets of L shape slider 29 tops collects chip box 6, the bottom of collection chip box 6 slides the laminating in the outside of base 7, one side outer wall fixed mounting of collection chip box 6 has handle 31, when collecting the utilization to the metal fillings of collection chip box 6, can hand handle 31 pulling collection chip box 6, collection chip box 6 sliding connection is in the outside of base 7, be convenient for load.

The top cover that is close to disc 9 in the support column 16 outside is equipped with fixed cover 21, and fixed cover 21 outside clamps along annular equidistance and has multiunit elastic steel sheet 22, and elastic steel sheet 22 all is located between two adjacent telescopic sleeves 42, and multiunit elastic steel sheet 22 all with telescopic sleeve 42 surface movable contact, when rotating disc 9, through multiunit elastic steel sheet 22's location, can catch the position of the inboard rotation axis 19 of telescopic sleeve 42 fast to be convenient for clamp fast with installation sleeve 15.

When the drilling machine works, a user firstly places a metal material on the surfaces of the plurality of groups of rollers 36, the plurality of groups of rollers 36 can move automatically under the pushing of the user, when holes can be drilled at different positions aiming at a heavier metal material, the carrying work of a user can be reduced, when the driving cylinder 26 drives the rectangular frame 8 and the transverse plate 25 to move, the metal material can also be fixed relatively stably, after the fixing, the driving cylinder 23 drives the connecting frame 12 to move downwards, so that the disk 9 and the plurality of groups of drill bits 44 move downwards together, the mounting sleeve 15 of the motor 11 is fixed on the rotating shaft 19 at the corresponding position, so as to drive the rotating shaft 19 and the drill bits 44 to drill the metal material, after the long-time use, the main drill bit 44 and the drill bit sleeve 43 are continuously replaced, the damage of the drill bit sleeve 43 is easily caused, at the moment, the disk 9 is rotated, under the positioning of the elastic steel sheet 22, the, subsequently, the connecting seat 17 is clamped on the outer side of the limiting rod 18, the mounting sleeve 15 is clamped with the rotating shaft 19 after the position of the motor 11 is fixed, so that the mounting sleeve 15, the rotating shaft 19, the drill bit sleeve 43, the drill bit 44 and other components are temporarily integrated, drilling work is performed firstly, after the drilling work is finished, the drill bit sleeve 43 is replaced in the later period, the connecting seat 17 can be lifted through the lifting, so that the mounting sleeve 15 is separated from the rotating shaft 19, the drill bit sleeve 43 is taken down from the outer side of the rotating shaft 19, the mode cannot affect long-time stop of the device, the condition of low working efficiency is caused, meanwhile, the worn drill bit 44 is convenient to replace and maintain, the protecting sleeve 20 is clamped by other drill bits 44 when the drilling is carried out, metal materials can be positioned, and the stabilizing effect during drilling is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The metal processing numerical control machine tool convenient to maintain comprises a workbench (1) and is characterized in that supporting legs (40) are inserted at corners of the bottom of the workbench (1), a supporting seat (4) is fixedly connected to one side of the top of the workbench (1), a lifting mechanism is arranged on the inner side of the supporting seat (4), a connecting frame (12) is arranged at the top of the lifting mechanism, an auxiliary mechanism is arranged on the inner wall of the connecting frame (12), the connecting frame (12) is L-shaped, a supporting column (16) is fixedly connected to the bottom of the connecting frame (12), a disc (9) is rotatably sleeved on the outer side of the supporting column (16) close to the lower position, a plurality of object placing through holes are equidistantly formed in the inner side of the disc (9) along an annular shape, an elastic mechanism is arranged on the inner side of the object placing through holes, and a rotating shaft (19) is, the drill bit sleeve (43) is installed at the bottom end of the rotating shaft (19), a drill bit (44) is clamped on the inner side of the drill bit sleeve (43), a protective sleeve (20) is movably sleeved on the outer side of the drill bit (44), a limiting rod (18) is inserted in the upper position of the inner side of the supporting column (16), a connecting seat (17) is arranged on the outer surface of the limiting rod (18), the connecting seat (17) is in movable contact with the limiting rod (18), the connecting seat (17) is slidably sleeved on the outer side of the supporting column (16), a motor frame (10) extends out of the outer wall of the connecting seat (17), a motor (11) is clamped on the inner side of the motor frame (10), a mounting sleeve (15) is fixedly connected to an output shaft of the motor (11), the mounting sleeve (15) is clamped with one of the rotating shaft (19), and a scrap falling platform (5) is fixedly clamped, the scrap falling table is characterized in that erecting mechanisms are arranged on two sides of the top of the scrap falling table (5), a placing seat (33) is arranged on the top of the erecting mechanism, a plurality of groups of strip-shaped through grooves (34) are formed in the inner side of the placing seat (33) at equal intervals, cross beams (35) are arranged on two side edges of the top of the placing seat (33), the two cross beams (35) are fixedly connected with a workbench (1), a rolling mechanism is arranged between the two cross beams (35), a U-shaped plate (2) is fixedly clamped on the outer side of one of the cross beams (35), a clamping mechanism is arranged on the outer side of the other cross beam (35), the clamping mechanism comprises a rectangular frame (8), transverse plates (25) extend from the inner walls of two ends of the rectangular frame (8), scrap collecting mechanisms are jointly arranged on the inner sides of the two transverse plates (25), a notch through, and a scrap collecting mechanism is arranged at the bottom of the scrap falling table (5).

2. The metal-working numerical control machine tool facilitating maintenance according to claim 1, characterized in that the lifting mechanism comprises a hydraulic cylinder (23) clamped inside the support base (4), and the telescopic end of the hydraulic cylinder (23) is fixedly connected with the connecting frame (12).

3. The metal-working numerical control machine tool convenient for maintenance according to claim 1, wherein the auxiliary mechanism comprises sliding bars (41) fixedly connected to two ends of the outer side of the supporting seat (4), sliding seats are slidably connected to the outer sides of two groups of sliding bars (41), a fixed seat (13) is fixedly connected to the outer wall of one end of each sliding seat, which is far away from the sliding bar (41), and the fixed seat (13) is fixedly connected with the connecting frame (12).

4. The numerical control machine tool for metal processing convenient to maintain according to claim 1, characterized in that the elastic mechanism comprises connecting blocks (37) fixedly clamped on the inner wall of the object placing through hole along a ring shape at equal intervals, a plurality of groups of U-shaped rods (14) are slidably inserted into the inner sides of the connecting blocks (37), one ends of the outer sides of the U-shaped rods (14) far away from the connecting blocks (37) are sleeved with springs (45), one ends of the U-shaped rods (14) far away from the connecting blocks (37) are connected with telescopic sleeves (42) together, and the rotating shaft (19) is rotatably connected to the inner sides of the telescopic sleeves (42).

5. The numerical control metal-working machine tool convenient for maintenance according to claim 1, characterized in that the erecting mechanism comprises fixed beams (39) fixedly connected to the top of the working table (1) near to both sides of the scrap falling table (5), respectively, a reinforcing table (38) is erected between the two fixed beams (39), and the bottom of the placing seat (33) is fixedly connected to the top of the reinforcing table (38).

6. The metal-working numerical control machine tool facilitating maintenance according to claim 1, characterized in that the rolling mechanism comprises a fixed frame (32) sliding inside two cross beams (35), and a plurality of rollers (36) are rotatably connected inside the fixed frame (32) along a horizontal direction.

7. The metal processing numerical control machine tool convenient to maintain according to claim 1, characterized in that the clamping mechanism comprises a curve plate (24) which is arranged on the inner sides of two transverse plates (25) together, a plurality of groups of bolts (27) are inserted in the inner sides of the curve plate (24) corresponding to the two transverse plates (25) in a threaded manner, the bottom of the curve plate (24) is attached to the bottom of the inner side of the scrap falling table (5), a driving mechanism is arranged on the outer wall of one side of the two transverse plates (25) and comprises an air cylinder (26), the telescopic end of the air cylinder (26) is fixedly connected with the outer wall of the transverse plate (25), a fixing frame (3) is sleeved on the outer side of the air cylinder (26), and the fixing frame (3) is fixedly connected with the workbench (1).

8. The metal processing numerical control machine tool convenient to maintain according to claim 1, wherein the scrap collecting mechanism comprises a base (7) fixedly connected to the bottom of the scrap falling table (5), sliding grooves (30) are formed in two sides of the base (7), L-shaped sliding blocks (29) are slidably connected to the inner sides of the two groups of sliding grooves (30), scrap collecting boxes (6) are fixedly connected to the tops of the two groups of L-shaped sliding blocks (29), the bottoms of the scrap collecting boxes (6) are slidably attached to the outer side of the base (7), and a handle (31) is fixedly mounted on the outer wall of one side of each scrap collecting box (6).

9. The numerical control machine tool for metal processing convenient to maintain according to claim 1, characterized in that a fixed sleeve (21) is sleeved outside the supporting column (16) close to the upper part of the disc (9), a plurality of groups of elastic steel sheets (22) are clamped on the outer side of the fixed sleeve (21) at equal intervals along a ring shape, the elastic steel sheets (22) are all positioned between two adjacent telescopic sleeves (42), and the plurality of groups of elastic steel sheets (22) are all in movable contact with the outer surfaces of the telescopic sleeves (42).