CN114043399A

CN114043399A - Be used for multi-functional fixed frock of machining

Info

Publication number: CN114043399A
Application number: CN202111596089.9A
Authority: CN
Inventors: 甘武林
Original assignee: Zhejiang Rongfu Tooling Technology Co ltd
Current assignee: Zhejiang Rongfu Tooling Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-02-15
Anticipated expiration: 2041-12-24
Also published as: CN114043399B

Abstract

The invention discloses a multifunctional fixing tool for machining, and particularly relates to the field of machining. According to the invention, by arranging the base, the clamping plate, the knob and the first sliding block, the two sides of the clamping plate are respectively designed into a curved surface and a plane, the adjustment can be carried out according to the shape of the part, when the processed part is of an annular structure, the cylinder in the base can be started to drive the inner table to be pushed out from the accommodating groove and be positioned in the annular part, then the second electromagnet at one end of the push rod is started, the second electromagnet can move to one side of the first baffle ring through magnetic force, so that the push rod is pushed out outwards, the ejector block at the other end of the push rod abuts against the inner wall of the part, the ejector block is made of rubber material, can be well attached to the inner wall of the part, and can be fixed inside and outside through the outer clamping plate, so that the fixing effect is greatly increased, the parts of different specifications can be fixed, and the practicability of the fixing tool is greatly increased.

Description

Be used for multi-functional fixed frock of machining

Technical Field

The invention relates to the field of machining, in particular to a multifunctional fixing tool for machining.

Background

The tooling, namely the process equipment, refers to a general name of tool equipment used in the manufacturing process, comprises a cutter, a measuring tool, a checking fixture, a clamp, a die, a station tool and the like, and is important equipment for auxiliary processing and manufacturing.

The existing tool has fixed specification, a single tool mechanism can only be used for fixing parts with corresponding specification, and certain limitation is realized during use; although a plurality of clamping jaws or clamping joints arranged in different areas are adopted in the existing partial solution, and each clamping jaw or clamping joint is provided with an independent driving structure, so that different telescopic feeding control of different driving structures is realized for workpieces with different sizes, in most operation scenes, parts to be processed are regular bodies, such as cubes or round bodies, cylinders or spherical bodies, so that each driving mechanism is required to drive each clamping jaw to accurately clamp each position of the workpiece for treating the workpieces, the workpiece is positioned at the central position on a base without deviation, in the actual working process, the starting time of each clamping jaw driving mechanism and the final output telescopic amount cannot be completely the same, and although the workpieces are clamped by the last plurality of clamping jaws, the final stop position of the workpiece after being clamped deviates, the existing centering optical detection device or a center reference rod is needed to be arranged for centering and placing reference of a workpiece, but the optical detection device is generally expensive in manufacturing cost and is not shock-resistant, and the center reference rod needs to be provided with an opening at the bottom, so that scraps in the machining process are inconvenient to clean and collect.

Disclosure of Invention

In order to overcome the above-mentioned defects in the prior art, an embodiment of the present invention provides a multifunctional fixture for machining, including a base: the outer surface of the base is sleeved with a mounting ring, the mounting ring is rotatably connected with the base, an inner platform is arranged in the center of the interior of the base, a mounting plate is fixedly mounted on the outer surface of one side of the mounting ring, a handle is fixedly mounted on the outer surface of the other side of the mounting ring, a plurality of limiting holes are formed in the outer surface of the base, which is located on the inner side of the mounting ring, and are annularly arranged, second sliding grooves are formed in the outer surfaces of the two sides of the handle, a sleeve ring is sleeved on the outer surface of the handle and is slidably connected with the handle through the second sliding grooves, a limiting rod is arranged in the handle, connecting blocks are fixedly mounted on the outer surfaces of the two sides of the limiting rod, one end of each connecting block is fixedly connected with the inner wall of the sleeve ring, and a first spring is arranged at one end, which is located on the limiting rod, in the handle;

the upper surface of the base is in a cross shape and is provided with four first sliding grooves, the outer surface of the base is arranged above the first sliding grooves and is provided with a clamping plate, the bottom end of the clamping plate is provided with a vertical sliding block, the sliding block is matched with the first sliding grooves, one side of the inner wall of the first sliding grooves is fixedly provided with a motor, one end of an output shaft of the motor is fixedly provided with a first screw rod, the first screw rod is in threaded connection with the sliding block, the top end of the clamping plate is provided with a knob, the knob is rotationally connected with the clamping plate, the interior of the clamping plate is arranged at the bottom end of the knob and is provided with a second screw rod, the knob is in threaded connection with the second screw rod, the bottom end of the second screw rod is fixedly provided with a clamping block, the bottom end of the interior of the clamping plate is provided with a bottom groove, the top end of the interior of the sliding block is provided with a clamping groove, the bottom groove is the same as the clamping groove in specification and size, and the clamping block is matched with the clamping groove, the outer side of each clamping plate is a plane, the inner side of each clamping plate is a curved surface, a containing groove is formed in the center of the inner portion of the base, an annular groove surrounding a first sliding groove is further formed in the upper surface of the base, polishing treatment is conducted on the inner wall of the groove body of the annular groove, an annular spring which is connected end to end is arranged in the annular groove, four balls are arranged in the annular spring at equal angular intervals, adjacent balls are fixedly connected through a rigid arc-shaped connecting rod, a first magnetic block is embedded in each ball, a second magnetic block is embedded in the side, away from the inner table, of each clamping plate body, and the number of limiting holes between two adjacent first sliding grooves (11) is odd;

the top of mounting panel is provided with first electro-magnet, the bottom fixed mounting of first electro-magnet has the pivot, first electro-magnet rotates through pivot and mounting panel to be connected, logical groove has been seted up to the surface of pivot, the side channel has been seted up to one side surface of mounting panel, the bolt has been inserted to the inside of side channel, the inside one end fixed mounting of side channel has the second to keep off the ring, the second keeps off the ring cover and establishes the surface at the bolt, the one end fixed mounting of bolt has the cardboard, cardboard and logical groove phase-match, one side cover that the surface of bolt is located the cardboard is equipped with the second spring.

The inner table is arranged inside the containing groove, the inner table is the same as the containing groove in specification and size, a cylinder is fixedly mounted at the bottom end of the inner table inside the base, an output shaft of the cylinder is fixedly connected with the inner table, an inner groove is formed inside the inner table, a first baffle ring is fixedly mounted at one end of the inner groove, a push rod is arranged inside the inner groove, the first baffle ring is sleeved on the outer surface of the push rod, the push rod is slidably connected with the first baffle ring, a second electromagnet is fixedly mounted at one end of the first baffle ring, a top block is fixedly mounted at the other end of the first baffle ring, and the top block is made of rubber.

The handle is made of non-magnetic materials.

The connecting block is matched with the second sliding groove.

The other end of the limiting rod is matched with the limiting hole.

The first spring is made of non-magnetic materials.

The invention has the technical effects and advantages that:

1. according to the invention, the stay position of the workpiece after being clamped and fixed can be rapidly and visually checked through the specially designed annular groove and the plurality of balls positioned in the annular groove, an optical detection device and an intermediate reference rod are not required to be arranged, and meanwhile, the chips in the machining process can be adsorbed and collected in all directions

1. According to the invention, the base, the clamping plate, the knob and the first sliding block are arranged, the two sides of the clamping plate are respectively designed into a curved surface and a plane, the adjustment can be carried out according to the shape of the part, when the processed part is of an annular structure, the cylinder in the base can be started, the inner table is driven to be pushed out from the accommodating groove and positioned in the annular part, then the second electromagnet at one end of the push rod is started, the second electromagnet can move to one side of the first baffle ring through magnetic force, so that the push rod is pushed out outwards, the ejector block at the other end of the push rod props against the inner wall of the part, the ejector block is made of rubber materials and can be better attached to the inner wall of the part, the inner and outer fixing is carried out through the outer clamping plate, the fixing effect is greatly increased, the parts of different specifications can be fixed, and the practicability of the fixing tool is greatly increased;

2. according to the invention, the first electromagnet, the handle, the mounting ring and the limiting hole are arranged, so that more scraps can be generated in the processing process of the part, the first electromagnet at the top end of the mounting plate is started, the scraps are attracted by the magnetic force of the first electromagnet and can be attached to the surface of the first electromagnet, and in the processing process, the position of the first electromagnet can be driven by the rotation of the mounting ring, so that the scraps can be timely adsorbed, and the processing effect of the part can be prevented from being influenced by the scraps.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the inner stage in use state of the present invention.

Fig. 3 is a view showing an installation structure of the splint of the present invention.

Fig. 4 is an exploded view of the splint of the present invention.

FIG. 5 is a cross-sectional view of an inner stage of the present invention.

Fig. 6 is an exploded view of the base of the present invention.

FIG. 7 is an exploded view of the handle of the present invention;

fig. 8 is an exploded view of the mounting structure of the first electromagnet of the present invention.

The reference signs are: 1. a base; 11. a first chute; 12. a splint; 13. a slider; 131. a card slot; 14. a motor; 15. a first screw; 16. a knob; 17. a second screw; 18. a clamping block; 19. a bottom groove; 2. a mounting ring; 21. a handle; 22. a limiting hole; 23. a second chute; 24. a collar; 25. a limiting rod; 26. connecting blocks; 27. a first spring; 3. an inner stage; 31. an inner tank; 32. a first retainer ring; 33. a push rod; 34. a second electromagnet; 35. a top block; 4. mounting a plate; 41. a first electromagnet; 42. a rotating shaft; 43. a through groove; 44. a side groove; 45. a bolt; 46. a second retainer ring; 47. a second spring; 48. and (4) clamping the board.

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.

According to the multifunctional fixed tool for machining shown in the figures 1-5, the multifunctional fixed tool comprises a base 1: the outer surface of the base 1 is sleeved with a mounting ring 2, the mounting ring 2 is rotatably connected with the base 1, an inner platform 3 is arranged at the center of the inner part of the base 1, a mounting plate 4 is fixedly arranged on the outer surface of one side of the mounting ring 2, a handle 21 is fixedly arranged on the outer surface of the other side of the mounting ring 2, a plurality of limiting holes 22 are arranged on the outer surface of the base 1 at the inner side of the mounting ring 2, the limiting holes 22 are arranged in a ring shape, the outer surfaces of two sides of the handle 21 are provided with second sliding grooves 23, the outer surface of the handle 21 is sleeved with a lantern ring 24, the lantern ring 24 is connected with the handle 21 in a sliding way through a second sliding chute 23, a limiting rod 25 is arranged inside the handle 21, the outer surfaces of the two sides of the limiting rod 25 are fixedly provided with connecting blocks 26, one end of each connecting block 26 is fixedly connected with the inner wall of the lantern ring 24, a first spring 27 is arranged at one end of the handle 21, which is provided with the limiting rod 25;

the upper surface of the base 1 is in a cross shape and is provided with four first sliding grooves 11, a clamping plate 12 is arranged on the outer surface of the base 1 and above the first sliding grooves 11, a vertical sliding block 13 is arranged at the bottom end of the clamping plate 12, the sliding block 13 is matched with the first sliding grooves 11, a motor 14 is fixedly arranged on one side of the inner wall of the first sliding groove 11, a first screw 15 is fixedly arranged at one end of an output shaft of the motor 14, the first screw 15 is in threaded connection with the sliding block 13, a knob 16 is arranged at the top end of the clamping plate 12, the knob 16 is rotatably connected with the clamping plate 12, a second screw 17 is arranged at the bottom end of the knob 16 inside the clamping plate 12, the knob 16 is in threaded connection with the second screw 17, a clamping block 18 is fixedly arranged at the bottom end of the second screw 17, a bottom groove 19 is arranged at the bottom end of the inside of the clamping plate 12, and a clamping groove 131 is arranged at the top end of the inside of the sliding block 13, the bottom groove 19 and the clamping groove 131 are the same in specification and size, the clamping block 18 is matched with the clamping groove 131, the outer side of the clamping plate 12 is a plane, the inner side of the clamping plate 12 is a curved surface, a containing groove is formed in the center of the inner portion of the base 1, an annular groove surrounding the first sliding groove 11 is further formed in the upper surface of the base 1, polishing treatment is conducted on the inner wall of the groove body of the annular groove, an annular spring which is connected end to end is arranged in the annular groove, four balls are arranged in the annular spring at equal angular intervals, adjacent balls are fixedly connected through a rigid arc-shaped connecting rod, a first magnetic block is embedded in each ball, a second magnetic block is embedded in the side, far away from the inner platform 3, of each clamping plate 12, and the number of limiting holes 22 between the two adjacent first sliding grooves 11 is odd;

the top end of the mounting plate 4 is provided with a first electromagnet 41, the bottom end of the first electromagnet 41 is fixedly provided with a rotating shaft 42, the first electromagnet 41 is rotatably connected with the mounting plate 4 through a rotating shaft 42, a through groove 43 is arranged on the outer surface of the rotating shaft 42, a side groove 44 is arranged on the outer surface of one side of the mounting plate 4, a bolt 45 is inserted into the side groove 44, a second retaining ring 46 is fixedly installed at one end of the inner portion of the side groove 44, the second retaining ring 46 is sleeved on the outer surface of the plug pin 45, one end of the bolt 45 is fixedly provided with a clamping plate 48, the clamping plate 48 is matched with the through groove 43, a second spring 47 is sleeved on one side of the outer surface of the bolt 45, which is positioned on the clamping plate 48, the handle 21 and the first spring 27 are made of non-magnetic materials, the connecting block 26 is matched with the second sliding groove 23, and the other end of the limiting rod 25 is matched with the limiting hole 22.

Accomodate inslot portion and be provided with interior platform 3, interior platform 3 is the same with the specification size of accomodating the groove, the inside bottom fixed mounting that is located interior platform 3 of base 1 has the cylinder, the output shaft and the 3 fixed connection of interior platform of cylinder, interior groove 31 has been seted up to the inside of interior platform 3, the inside one end fixed mounting of interior groove 31 has first fender ring 32, the inside of interior groove 31 is provided with push rod 33, first fender ring 32 cover is established at the surface of push rod 33, push rod 33 and first fender ring 32 sliding connection, the one end fixed mounting of first fender ring 32 has second electro-magnet 34, the other end fixed mounting of first fender ring 32 has kicking block 35, kicking block 35 is the rubber material.

The implementation mode is specifically as follows: when the part fixing device is used, a part to be fixed is placed on the base 1, then the motor 14 in the first sliding groove 11 is started, the motor 14 drives the first screw rod 15, the first screw rod 15 is in threaded connection with the sliding block 13, the sliding block 13 drives the clamping plate 12 at the top end to move inwards, so that the clamping plate 12 clamps the part and fixes the part, and processing is convenient, the two sides of the clamping plate 12 are respectively designed with a curved surface and a plane and can be adjusted according to the shape of the part, when the clamping plate 12 is adjusted, the knob at the top end is firstly rotated, the clamping block 18 is driven by the second screw rod 17 to move upwards, so that the clamping block 18 is separated from the clamping groove 131 of the sliding block, the clamping block 18 enters the bottom groove 19, the limiting on the clamping plate 12 is removed, then the clamping plate 12 is rotated along the sliding block 13, so that the clamping plate 12 is adjusted, after the adjustment is finished, the knob 16 is rotated again, and the clamping block 18 at the bottom end of the second screw rod 17 is pushed downwards, the insert slot 131 limits the clamp plate 12, when the processed part is in a ring structure, the cylinder in the base 1 can be started to drive the inner platform 3 to be pushed out from the containing slot and positioned in the ring part, then, the second electromagnet 34 at one end of the push rod 33 is activated, the second electromagnet 34 will move to the side of the first stop ring 32 by magnetic force, thereby pushing the push rod 33 outwards, causing the top block 35 at the other end of the push rod 33 to prop against the inner wall of the part, the top block 35 is made of rubber, can be better attached to the inner wall of the part and can be fixed inside and outside through the outer clamping plate 12, thereby greatly increasing the fixing effect, and can fix parts with different specifications, greatly increases the practicability of the fixing tool, closes the second electromagnet after the fixing is finished, then, the push rod 33 is pushed back to the inner groove 31, and then the cylinder is actuated to retract the inner stage 3 into the storage groove, which is convenient.

The implementation mode is specifically as follows: during the processing of the part, more chips are generated, at this time, the first electromagnet 41 at the top end of the mounting plate 4 is started, the chips are attracted by the magnetic force of the first electromagnet 41 and attached to the surface of the first electromagnet 41, during the processing, the position of the first electromagnet 41 can be driven by the rotation of the mounting ring 2, the chips can be timely adsorbed, and the processing effect of the part is prevented from being influenced by the chips, when the mounting ring 2 is adjusted, the lantern ring 24 on the handle 21 slides outwards along the second sliding groove 23 to drive the inner limiting rod 25 to be separated from the limiting hole 22 of the base 1, the limiting of the mounting ring 2 is released, then the mounting ring 2 rotates along the base 1, so that the first electromagnet 41 is adjusted, after the position adjustment is completed, the mounting ring 2 is released, the limiting rod 25 is pushed inwards by the second spring 47 and inserted into the corresponding limiting hole 22, thereby fixing the mounting ring 2, after the adsorption is finished, pulling the plug pin 45 at one side of the mounting plate 4 outwards to separate the clamping plate 48 at one end from the through groove 43 of the rotating shaft 42, releasing the limit on the rotating shaft 42, extruding the second spring 47 in the process of pulling the plug pin 45 outwards, then rotating the first electromagnet 41 through the rotating shaft 42 to enable the adsorbed side of the first electromagnet 41 to face outwards, then closing the first electromagnet 41, and conveniently scraping and collecting the scraps on the surface; besides, the plurality of balls embedded with the magnetic blocks in the first sliding groove can collect the debris in other directions.

When the regular device, for example, the spherical body or the square body needs to be tested for centering and clamping, the second electromagnet is turned off, the annular spring is rotated to drive each ball to stay above the limiting hole 22 at the midpoint between the two adjacent first chutes 11, the collar 24 on the handle 21 slides outwards along the second chute 23 to drive the inner limiting rod 25 to disengage from the limiting hole 22 of the base 1, so that the limiting on the mounting ring 2 is released, the mounting ring 2 is then rotated along the base 1, so that the mounting plate 4 is located at the rear side of one of the balls due to the position of the limiting hole 22 into which the limiting rod 25 is finally inserted, the first electromagnet 41 is then turned on to generate the adsorption force on the ball to fix each ball synchronously, and then the four motors 14 are turned on to push the sliding block 13 and the clamping plate 12 to move towards the workpiece on the inner table 3, until all the clamping plates 12 are abutted to the workpiece finally, the first electromagnets are switched off to lose the adsorption force on the balls, at the moment, the first magnetic blocks in the balls are only subjected to the adsorption force of the second magnetic blocks at the side parts of the clamping plates 12 nearby, and if the movement lengths of the sliding blocks 13 are different, the balls are subjected to the different adsorption forces; the unbalanced force of the adsorption force of only two second magnetic blocks drives the four balls to rotate through the connecting rods among the balls, visual detection and display of abnormal operation of the motor are achieved through the rotation, the arrangement that the number of the limiting holes 22 between two adjacent first sliding grooves 11 is odd can assist normal application and driving of the unbalanced force, after abnormal action is detected, the motors 14 are controlled to rotate reversely to the original points of movement return, and clamping action is carried out again until the balls cannot rotate finally.

In the above design, each ball cooperates with the first electromagnet 41 during the machining process, so that the chips in each orientation can be adsorbed.

Therefore, the invention enables the staying position of the workpiece after being clamped and fixed to be rapidly and visually checked through the specially designed annular groove and the plurality of balls positioned in the annular groove, does not need to arrange an optical detection device and an intermediate reference rod, and can realize that the scraps in the processing process are adsorbed and collected in all directions.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a be used for multi-functional fixed frock of machining, includes base (1), its characterized in that: the outer surface cover of base (1) is equipped with collar (2), collar (2) is rotated with base (1) and is connected, the inside center of base (1) is provided with inner platform (3), one side outer fixed surface of collar (2) installs mounting panel (4), the opposite side outer fixed surface of collar (2) installs handle (21), the surface of base (1) is located the inboard of collar (2) and has seted up a plurality of spacing hole (22), a plurality of spacing hole (22) are the annular arrangement, second spout (23) have been seted up to the both sides surface of handle (21), the surface cover of handle (21) is equipped with lantern ring (24), lantern ring (24) are through second spout (23) and handle (21) sliding connection, the inside of handle (21) is provided with gag lever post (25), the both sides outer fixed surface of gag lever post (25) installs connecting block (26), one end of the connecting block (26) is fixedly connected with the inner wall of the sleeve ring (24), and a first spring (27) is arranged at one end, positioned on the limiting rod (25), of the handle (21);

four first chutes (11) are arranged on the upper surface of the base (1) in a cross shape, a clamping plate (12) is arranged above the first chutes (11) on the outer surface of the base (1), a vertical sliding block (13) is arranged at the bottom end of the clamping plate (12), the sliding block (13) is matched with the first chutes (11), a motor (14) is fixedly arranged on one side of the inner wall of the first chute (11), a first screw rod (15) is fixedly arranged at one end of an output shaft of the motor (14), the first screw rod (15) is in threaded connection with the sliding block (13), a knob (16) is arranged at the top end of the clamping plate (12), the knob (16) is rotatably connected with the clamping plate (12), a second screw rod (17) is arranged at the bottom end of the knob (16) inside the clamping plate (12), and the knob (16) is in threaded connection with the second screw rod (17), a clamping block (18) is fixedly installed at the bottom end of the second screw (17), a bottom groove (19) is formed in the inner bottom end of the clamping plate (12), a clamping groove (131) is formed in the inner top end of the sliding block (13), the bottom groove (19) and the clamping groove (131) are identical in specification and size, the clamping block (18) is matched with the clamping groove (131), the outer side of the clamping plate (12) is a plane, the inner side of the clamping plate (12) is a curved surface, a containing groove is formed in the center of the inner portion of the base (1), an annular groove surrounding the first sliding groove (11) is further formed in the upper surface of the base (1), polishing treatment is performed on the inner wall of a groove body of the annular groove, an annular spring connected end to end is arranged in the annular groove, four balls are arranged in the annular spring at equal angular intervals, and adjacent balls are fixedly connected through a rigid arc-shaped connecting rod, a first magnetic block is embedded in each ball, a second magnetic block is embedded in the side, far away from the inner table (3), of the plate body of each clamping plate (12), and the number of the limiting holes (22) between two adjacent first sliding grooves (11) is odd;

the top of mounting panel (4) is provided with first electro-magnet (41), the bottom fixed mounting of first electro-magnet (41) has pivot (42), first electro-magnet (41) rotate with mounting panel (4) through pivot (42) and are connected, logical groove (43) have been seted up to the surface of pivot (42), side channel (44) have been seted up to one side surface of mounting panel (4), bolt (45) have been inserted to the inside of side channel (44), the inside one end fixed mounting of side channel (44) has the second to keep off ring (46), the second keeps off ring (46) cover and establishes the surface at bolt (45), the one end fixed mounting of bolt (45) has cardboard (48), cardboard (48) and logical groove (43) phase-match, one side cover that the surface of bolt (45) is located cardboard (48) is equipped with second spring (47).

2. The multifunctional fixing tool for machining according to claim 1, characterized in that: accomodate inslot portion and be provided with interior platform (3), interior platform (3) are the same with the specification size of accomodating the groove, the bottom fixed mounting that the inside of base (1) is located interior platform (3) has the cylinder, the output shaft and the interior platform (3) fixed connection of cylinder, interior inside groove (31) have been seted up to the inside of interior platform (3), the inside one end fixed mounting of inside groove (31) has first fender ring (32), the inside of inside groove (31) is provided with push rod (33), the surface at push rod (33) is established in first fender ring (32) cover, push rod (33) and first fender ring (32) sliding connection, the one end fixed mounting of first fender ring (32) has second electro-magnet (34), the other end fixed mounting of first fender ring (32) has kicking block (35), kicking block (35) are the rubber material.

3. The multifunctional fixing tool for machining according to claim 2, characterized in that: the handle (21) is made of a non-magnetic material.

4. The multifunctional fixing tool for machining according to claim 3, wherein the fixing tool comprises: the connecting block (26) is matched with the second sliding groove (23).

5. The multifunctional fixing tool for machining according to claim 4, wherein the fixing tool comprises: the other end of the limiting rod (25) is matched with the limiting hole (22).

6. The multifunctional fixing tool for machining according to claim 1, characterized in that: the first spring (27) is made of a non-magnetic material.