CN117900998A - Workpiece positioning base for magnetic steel polishing - Google Patents

Abstract

The invention relates to the technical field of magnetic steel machining, in particular to a workpiece positioning base for magnetic steel polishing. The invention provides a workpiece positioning base for polishing magnetic steel, which comprises a shell, a polishing machine and an integrated controller, wherein the shell is provided with the polishing machine which is used for polishing the surface of a workpiece in an adaptive manner, the polishing machine is fixedly provided with the integrated controller, the workpiece positioning base also comprises guide rails, electric sliding blocks and the like, the guide rails are symmetrically and fixedly arranged in the shell, and one ends, far away from each other, of the two guide rails are respectively provided with the electric sliding blocks which are electrically connected with the integrated controller. According to the invention, the double-shaft air cylinder drives the limiting frame to clamp and fix the workpiece, the unidirectional gear is driven to rotate through the rack, and the unidirectional gear is utilized to drive the rotating shaft to synchronously rotate, so that the limiting frame is driven to synchronously overturn, and the automatic overturning function of the workpiece is realized through a simple mechanical structure, so that the manual participation in the polishing process is reduced, the occurrence rate of safety accidents is further reduced, and the safety of workers is ensured.

Description

Workpiece positioning base for magnetic steel polishing

Technical Field

The invention relates to the technical field of magnetic steel machining, in particular to a workpiece positioning base for magnetic steel polishing.

Background

The magnetic steel is generally aluminum-nickel-cobalt alloy, and is synthesized by several metals, such as iron, aluminum, nickel, cobalt and the like, and sometimes copper, niobium and tantalum, and is used for manufacturing super-hardness permanent magnet alloy, and the magnetic steel has different metal components and magnetic properties, so that the magnetic steel has different purposes, however, the workpiece is polished indispensible in the mechanical processing of the magnetic steel, so that the surface of the workpiece is smooth.

According to the chinese patent publication CN108161727B, a magnetic steel processing grinder is proposed, which comprises a base, a main mounting plate, a carrier, a lifting frame, a guide beam screwed on the upper part of the lifting frame through threads, a movable chassis, a motor and a grinding component, wherein the main mounting plate is clamped on the upper end of the base, and the movable chassis, the motor and the grinding component are slidably sleeved on the guide beam.

The above-mentioned patent is even can carry out fixed polishing to it in magnet steel processing, but in the in-service use, the grinding part of this patent needs the workman manually to turn over after accomplishing polishing to work piece one side, still need readjust compress tightly the piece and compress tightly fixedly to the work piece, however the work piece is often higher at the back temperature of polishing, and the workman takes the condition that appears being scalded by the work piece in the adjustment repeatedly easily to cause the threat to workman's safety, and the adjustment process is relatively complicated, will influence the production efficiency that magnet steel work piece was polished.

Disclosure of Invention

In order to overcome the defect that the existing device needs a worker to turn over manually after finishing polishing one surface of a workpiece, however, the temperature of the workpiece is often higher after polishing, and the worker is easy to scald the workpiece in repeated taking adjustment, so that the safety of the worker is threatened, the invention aims to provide a workpiece positioning base for polishing magnetic steel, and the problem is solved.

The technical proposal is as follows: the utility model provides a work piece location base that magnet steel was polished and was used, including the shell, polisher and integrated control ware, be equipped with the polisher that the adaptation was polished to the work piece surface on the shell, fixedly mounted has integrated control ware on the polisher, still including the guide rail, electric slide, the spring telescopic link, the supporting shoe, clamping assembly, rack and one-way gear, symmetrical fixed mounting has the guide rail in the shell, the one end that two guide rails kept away from each other is equipped with respectively with integrated control ware electric slide, the symmetry is equipped with the spring telescopic link respectively on two electric slide, fixed mounting has the supporting shoe between the spring telescopic link on the same electric slide, be equipped with the clamping assembly who presss from both sides tight fixed to the work piece on two supporting shoes, clamping assembly is including the pivot, the installation piece, biax cylinder and limiting frame, be equipped with rotatable pivot respectively on two supporting shoes, the one end that two pivots are close to each other is fixedly connected with the installation piece respectively, fixedly connected with can fold tight limiting frame on the telescopic link of two biax cylinders respectively, symmetrical fixed mounting has the rack on the shell, be equipped with only anticlockwise rotatory effective one-way gear respectively on two pivots, when electric slide moves, can mesh with the rack on the same side with the same side.

Further, the shell also comprises top plates, wherein the top plates are symmetrically and fixedly arranged in the shell, and the two top plates are abutted against the mounting blocks on the same side.

Further, inclined planes which are tilted upwards are arranged on the two top plates.

Further, the automatic feeding device comprises a feeding component, wherein the feeding component for carrying the workpiece is arranged on the limiting frame, the feeding component comprises fixing blocks, jacking blocks, supporting blocks and elastic pull ropes, the fixing blocks are symmetrically and fixedly arranged on the two limiting frames on the same double-shaft cylinder respectively, jacking blocks capable of sliding under the action of gravity are arranged in each fixing block respectively, supporting blocks capable of being abutted against the corresponding jacking blocks are symmetrically arranged on one sides, close to each other, of the two fixing blocks on the same limiting frame respectively, and the elastic pull ropes are arranged between each supporting block and the corresponding fixing block respectively.

Further, each top block is provided with a trapezoid inclined plane, and the supporting blocks on the same fixed block can move along the trapezoid inclined planes of the corresponding top blocks.

Further, the device also comprises balancing weights, and each top block is internally provided with a balancing weight respectively.

Further, the novel lifting device comprises a dislocation assembly, wherein the dislocation assembly is arranged in the shell and used for enabling two pairs of limiting frames to vertically dislocation, the dislocation assembly comprises moving blocks, guide plates, warping plates and supporting plates, the moving blocks are fixedly installed at one ends, close to the shell, of two rotating shafts respectively, the guide plates are symmetrically and fixedly installed in the shell, the two moving blocks can move along the guide plates on the same side, the warping plates which are inclined upwards and can overturn downwards are respectively arranged on the two guide plates, torsion springs are respectively arranged at the connecting positions of the two warping plates and the corresponding guide plates, and the supporting plates capable of supporting the moving blocks penetrating through the corresponding warping plates are symmetrically and fixedly installed in the shell.

Further, the polishing machine comprises a collecting assembly, wherein the front part of the bottom surface of the shell is provided with a collecting assembly for uniformly collecting polished workpieces, the collecting assembly comprises a mounting frame, a collecting basket and ejector rods, the mounting frame is symmetrically and fixedly arranged on the shell, the collecting basket with an arc-shaped inclined surface is slidably clamped between the two mounting frames, the ejector rods with downward inclined surfaces are symmetrically and fixedly arranged in the collecting basket, and the two ejector rods are abutted against the two ejector blocks on the same side.

Further, the integrated controller is characterized by further comprising a signal sensor and a signal generator, wherein the signal sensor is symmetrically and fixedly arranged in the shell and is electrically connected with the integrated controller, the signal generator is fixedly arranged on two fixing blocks which are arranged on one side, close to each other, of the two pairs of limiting frames and are farthest from each other, and the two signal generators are electrically connected with the integrated controller.

Further, the device also comprises a supporting frame and a pressing wheel, wherein the supporting frame is fixedly installed on the shell, and the pressing wheel capable of pressing the workpiece in the limiting frame is arranged on the supporting frame.

The invention has the beneficial effects that: 1. according to the invention, the double-shaft air cylinder drives the limiting frame to clamp and fix the workpiece, the unidirectional gear is driven to rotate through the rack, and the unidirectional gear is utilized to drive the rotating shaft to synchronously rotate, so that the limiting frame is driven to synchronously overturn, and the automatic overturning function of the workpiece is realized through a simple mechanical structure, so that the manual participation in the polishing process is reduced, the occurrence rate of safety accidents is further reduced, and the safety of workers is ensured.

2. According to the invention, the top plate is arranged in the shell, and the mounting block in the process of pushing and moving the top plate is utilized, so that the limit frame and the workpiece can be horizontally transferred into the grinding machine, uneven grinding caused by overturning of the limit frame in the moving process is prevented, and the grinding flatness of the workpiece is further ensured.

3. According to the invention, the jacking blocks move on the corresponding fixed blocks under the action of gravity, so that the jacking supporting blocks extend in the directions close to each other, and the supporting blocks can bear the workpiece when the workpiece is placed in the limiting frame, so that the difficulty of placing the workpiece by a worker is reduced, the corresponding supporting blocks synchronously jack under the action of gravity after overturning to extend, and therefore, the workpiece is prevented from shifting due to overturning, and the positioning accuracy of the workpiece is further ensured.

4. According to the invention, the guide plate and the wane are arranged in the shell, so that when the electric sliding block drives the polished workpiece to move to the initial position, the wane can push the moving block to move downwards, and the supporting block drives the limiting frame to move downwards synchronously, so that the upper space of the shell is staggered, two groups of clamping assemblies can alternately transmit the workpiece to polish, and the polishing efficiency of the magnetic steel workpiece is improved.

5. According to the invention, the ejector rods are arranged in the collecting basket, the ejector blocks on the same side are ejected by the ejector rods to move upwards along the corresponding fixed blocks, so that the bearing of the polished workpiece in the limiting frames is relieved, and the signal sensor is used for sending an electric signal to the integrated controller, so that the clamping and fixing of the polished workpiece by the two limiting frames are relieved, the polished workpiece automatically falls into the collecting basket to be collected uniformly, the automation of collection is realized, and the participation of manpower is further reduced.

Drawings

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

Fig. 2 is a schematic view of the hidden front housing of the present invention.

Fig. 3 is a schematic view of a part of the structure of the present invention.

Fig. 4 is a schematic view of the structure of the clamping assembly of the present invention.

FIG. 5 is a schematic top view of the clamping assembly of the present invention.

Fig. 6 is a schematic structural view of the rack, the unidirectional gear and other parts of the present invention.

Fig. 7 is a schematic structural view of the parts such as the rack and the unidirectional gear behind the hidden part of the shell.

Fig. 8 is a schematic structural view of the receiving component of the present invention.

FIG. 9 is a schematic view of a part of a material receiving unit according to the present invention.

FIG. 10 is a schematic view of a dislocation assembly according to the present invention.

FIG. 11 is a schematic view of a moving block in a dislocation module according to the present invention.

Fig. 12 is a schematic view of the structure of the guide plate, rocker, and support plate of the present invention from the front view.

Fig. 13 is a schematic view of the structure of the collecting assembly of the present invention.

Fig. 14 is a schematic cross-sectional view of the collection assembly of the present invention from a front perspective in use.

Reference numerals: 1_shell, 2_polisher, 201_integrated controller, 3_guide rail, 4_electric slider, 5_spring telescoping rod, 6_support block, 701_spindle, 702_mounting block, 704_double-shaft cylinder, 705_limit frame, 706_top plate, 801_rack, 802_unidirectional gear, 901_fixed block, 902_top block, 902 a_trapezoidal slope, 903_counterweight, 904_support block, 905_elastic pull rope, 1001_moving block, 1002_guide plate, 1003_rocker, 1004_support plate, 1101_mounting frame, 1102_collection basket, 1102 a_arcuate slope, 1103_roof bar, 1201_signal sensor, 1202_signal generator, 1301_support frame, 1302_press wheel.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Example 1: the utility model provides a work piece locating pedestal for magnet steel is polished, refer to the fig. 1-7 and show, including shell 1, polisher 2 and integrated controller 201, the left part of shell 1 top surface is equipped with the polisher 2 that the adaptation was polished to the work piece surface, integrated controller 201 is installed through the bolt in the front of polisher 2, still including guide rail 3, electronic slider 4, spring telescopic link 5, supporting shoe 6, clamping assembly, rack 801 and unidirectional pinion 802, there is guide rail 3 in the shell 1 bilateral symmetry through the bolt installation, the one end that two guide rails 3 kept away from each other is equipped with respectively with integrated controller 201 electric slider 4, the top surface of two electronic sliders 4 is equipped with spring telescopic link 5 respectively fore-and-aft symmetry, install supporting shoe 6 through the bolt between the top of spring telescopic link 5 on the same electronic slider 4, be equipped with the clamping assembly to the work piece through the bolt on the middle part of two supporting shoes 6, clamping assembly is including pivot 701, installation piece 702, biax cylinder 704 and spacing frame 705, the middle part of two supporting shoe 6 is equipped with rotatable pivot 701 respectively, two pivot 702 are connected with installation piece 702 through the bolt connection respectively through the bolt, two ends that the two guide rail 3 keep away from each other, can be equipped with respectively with the unidirectional pinion 802 through the corresponding to the two-axis 802 of installation piece 702 at the left and right sides of the two supporting shoe 6, can be equipped with respectively with the counter-clockwise rotation of the axial block 702, the axial block is equipped with the clamping assembly through the axial block of two supporting shoe 702, the axial block is equipped with the axial clamp 1, and can be rotated by the axial gear 802, and the axial jack-up through the axial jack 802, and can be rotated.

Referring to fig. 1,2, 3, 10 and 12, the polishing machine further comprises a top plate 706, the top plate 706 is mounted in the housing 1 in a bilateral symmetry manner through bolts, the front end and the rear end of the two top plates 706 are respectively provided with an upward tilting inclined plane, the two top plates 706 are respectively located below the polishing machine 2, the two top plates 706 are abutted with the mounting blocks 702 at the same side, and the top plates 706 can push the corresponding mounting blocks 702 to keep a horizontal state.

When the magnetic steel workpiece is required to be polished, taking the clamping assembly at the front part of the shell 1 in the direction shown in fig. 1 as an example, firstly placing the workpiece into two limiting frames 705 at the front part of the shell 1, then starting a double-shaft air cylinder 704 through an integrated controller 201, driving the two limiting frames 705 to move towards the directions close to each other by the two telescopic rods of the double-shaft air cylinder 704 so as to clamp and fix the workpiece, then starting a polishing program through the integrated controller 201, starting an electric sliding block 4 to move towards the polishing machine 2 along a corresponding guide rail 3 by the integrated controller 201, when a mounting block 702 is contacted with a top plate 706, the top plate 706 enables the limiting frames 705 to be horizontally kept with the workpiece through the top moving mounting block 702 to be transmitted into the polishing machine 2, at the moment, the mounting block 702 can move along the bottom surface of the top plate 706 at the same side so as to prevent the limiting frames 705 from turning over due to a rotating shaft 701 in the moving process, further ensuring the flatness of polishing the workpiece, then the integrated controller 201 starts the polishing machine 2 to polish the top surface of the workpiece, after polishing, the electric sliding block 4 drives the workpiece to move backwards, at the moment, the mounting block 702 is separated from contact with the top plate 706, the one-way gear 802 is meshed with the rack 801 on the same side, the one-way gear 802 rotates anticlockwise effectively under the top movement of the rack 801, the one-way gear 802 drives the rotating shaft 701 to synchronously rotate 180 degrees, the rotating shaft 701 drives the limiting frame 705 to synchronously turn 180 degrees through the mounting block 702, so that the automatic turning of the workpiece is realized, then the integrated controller 201 enables the electric sliding block 4 to move forwards along the corresponding guide rail 3, so that the workpiece is kept horizontal again by the top plate 706 on the same side, the bottom surface of the workpiece turned up is polished by the polishing machine 2, and then the workpiece returns to the initial position through the electric sliding block 4, so that the positioning and polishing processing of one magnetic steel workpiece is completed.

Example 2: on the basis of embodiment 1, referring to fig. 1,2, 8 and 9, the device further comprises a receiving component, the limiting frame 705 is provided with a receiving component for receiving a workpiece, the receiving component comprises a fixed block 901, a top block 902, a supporting block 904 and an elastic pull rope 905, the two limiting frames 705 on the same double-shaft cylinder 704 are respectively welded with the fixed block 901 in a bilateral symmetry manner, each fixed block 901 is respectively provided with a top block 902 capable of sliding up and down under the action of gravity, the middle part of each top block 902 is respectively provided with a trapezoid inclined surface 902a, one side, close to each other, of the two fixed blocks 901 on the same limiting frame 705 is respectively provided with a supporting block 904 capable of being abutted against the corresponding top block 902 in an up-down symmetry manner, the supporting blocks 904 can support the workpiece, the supporting blocks 904 on the same fixed block 901 can move along the trapezoid inclined surfaces 902a corresponding to the top blocks 902, the trapezoid inclined surfaces 902a of the top blocks 902 can push the corresponding supporting blocks 904 to extend towards directions close to each other, and the elastic pull rope 905 are respectively arranged between each supporting block 904 and the corresponding fixed blocks 901.

Referring to fig. 9, the jack-up block 902 further includes a balancing weight 903, wherein the balancing weight 903 is disposed at the inner middle portion of each jack-up block 902, and the balancing weight 903 can increase the weight of the corresponding jack-up block 902, so that the corresponding jack-up block 902 can move more rapidly under the action of gravity.

In the initial state, the top block 902 and the balancing weight 903 move downwards along the corresponding fixed block 901 under the action of gravity, at this time, the top block 902 pushes the supporting blocks 904 at the lower side of the corresponding fixed block 901 to extend towards the direction approaching each other through the trapezoid inclined plane 902a, and the elastic pull ropes 905 are stretched, so that the supporting blocks 904 at the lower side of the workpiece placed in the limiting frame 705 can be accepted by the workpiece, the workpiece is conveniently placed by workers, when the limiting frame 705 is overturned by 180 degrees under the driving of the rotating shaft 701, the top block 902 and the balancing weight 903 move downwards synchronously along the corresponding fixed block 901 under the action of gravity, so that the supporting blocks 904 at the lower side of the corresponding fixed block 901 are pushed to extend towards the direction approaching each other through the trapezoid inclined plane 902a, and the supporting blocks 904 extending at the lower side of the original state lose the supporting blocks 904 at the upper side of the corresponding trapezoid inclined plane 902a and shrink towards the corresponding fixed block 901 under the reset of the elastic pull ropes 905, so that the workpiece in the limiting frame 705 is held by workers in a circulating manner, and the workpiece in the limiting frame 705 is prevented from being overturned, and the workpiece positioning accuracy is ensured.

Referring to fig. 1, fig. 2, fig. 10, fig. 11 and fig. 12, the device further comprises a dislocation assembly, wherein the dislocation assembly for vertically dislocating the two pairs of limiting frames 705 is arranged in the housing 1, the dislocation assembly comprises a moving block 1001, a guide plate 1002, a rocker 1003 and a bearing plate 1004, the moving block 1001 is respectively mounted on one end of the two rotating shafts 701, which is close to the inner side wall of the housing 1, through bolts, the guide plate 1002 is mounted in the housing 1 in a bilateral symmetry manner, the two moving blocks 1001 can move along the guide plates 1002 on the same side, the rear ends of the two guide plates 1002 are respectively provided with the rocker 1003 which inclines upwards and can overturn downwards, torsion springs are respectively arranged between the connecting positions of the two rocker 1003 and the corresponding guide plate 1002, the torsion springs are used for resetting the corresponding rocker 1003, the bearing plate 1004 which can bear the moving block 1001 after passing through the corresponding rocker 1003 is mounted in the bilateral symmetry manner through bolts in the housing 1, and the two bearing plates 1004 are respectively located below the top plate 706 on the same side.

Referring to fig. 1, fig. 2, fig. 13 and fig. 14, the polishing machine further comprises a collecting assembly, the front portion of the bottom surface of the housing 1 is provided with a collecting assembly for uniformly collecting polished workpieces, the collecting assembly comprises a mounting frame 1101, a collecting basket 1102 and a push rod 1103, the mounting frame 1101 is mounted on the front portion of the bottom surface of the housing 1 in a bilateral symmetry manner through bolts, the collecting basket 1102 with an arc-shaped inclined surface 1102a is mounted on the rear portion of the front portion of the mounting frame 1101 in a sliding manner, push rods 1103 with downward inclined surfaces are mounted on the inner front side wall of the collecting basket 1102 in a bilateral symmetry manner through bolts, the two push rods 1103 are abutted against the two push blocks 902 on the same side, and the push rods 1103 are abutted against the push blocks 902 on the same side to move upwards.

Referring to fig. 1,2, 13 and 14, the device further comprises a signal sensor 1201 and a signal generator 1202, the front part of the inner bottom surface of the housing 1 is symmetrically provided with the signal sensor 1201 which is electrically connected with the integrated controller 201 through bolts, two fixing blocks 901 which are arranged on one side of the two pairs of limiting frames 705 close to each other and are farthest from each other are respectively provided with the signal generator 1202 through bolts, the two signal generators 1202 are electrically connected with the integrated controller 201, and the signal sensor 1201 corresponds to the signal generator 1202 on the same side.

Taking two clamping components at the front part and the rear part of the shell 1 in the direction shown in fig. 2 as an example, at this time, the rear clamping component is in a state of moving forwards after overturning, the front clamping component is in a state of waiting to be started after being put into a workpiece, at this time, the front spring telescopic rod 5 is in a normal state, when the rear electric slider 4 drives the polished workpiece to move forwards, the corresponding moving block 1001 is abutted with a rocker 1003 at the same side, the rocker 1003 pushes the moving block 1001 at the same side downwards, the corresponding spring telescopic rod 5 is compressed, the moving block 1001 moves forwards along the bottom surface of the guide plate 1002, so that the supporting block 6 drives the limiting frame 705 to move downwards synchronously, the upper space of the shell 1 is staggered, when the limiting frame 705 moves forwards to the upper part of the collecting basket 1102, the ejector rod 1103 pushes the top block at the same side upwards along the corresponding fixed block 901, so that the step is released, when the signal generator 1202 and the signal sensor are opposite, the signal sensor is driven to move the moving block 1001 at the same side, the corresponding two bearing blocks 201 are driven by the electric sensor, the two bearing blocks 201 are driven by the two bearing blocks 201 to move along the same direction, the two bearing blocks 201 are simultaneously, the two bearing blocks 201 are driven to move downwards along the same, the upper surface of the collecting basket 1102 is opened, and the upper surface of the upper frame is lifted, when the two bearing blocks 201 is lifted, the upper surface of the upper bearing block 201 is lifted, and the finished, and when the upper bearing block 201 is lifted, and the finished, and the bearing block is lifted, and the polished workpiece finished is moved. The polishing steps are repeated, at this time, the moving block 1001 of the workpiece at the front part of the housing 1 passes through the bottom surface of the corresponding guide plate 1002, after the top of the guide plate 1002 is lost, the spring telescopic rod 5 can reset upwards to drive the corresponding support block 6 to return to the initial position, so that the workpiece placing step is repeated, the two groups of clamping assemblies are polished alternately in this cycle, and the polishing efficiency of the magnetic steel workpiece is improved.

Referring to fig. 1 and 2, the workpiece clamping device further comprises a supporting frame 1301 and a pressing wheel 1302, the supporting frame 1301 is mounted on the front portion of the top surface of the shell 1 through bolts, the pressing wheel 1302 capable of pressing down workpieces in the limiting frame 705 is arranged on the bottom surface of the supporting frame 1301, when the electric sliding block 4 drives the workpieces in the limiting frame 705 to move towards the direction of the grinding machine 2, the pressing wheel 1302 can press down the workpieces, and therefore the workpieces are prevented from being clamped between the two corresponding limiting frames 705, and clamping and fixing of the limiting frames 705 to the workpieces are guaranteed.

The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. All equivalents and alternatives falling within the spirit of the invention are intended to be included within the scope of the invention. What is not elaborated on the invention belongs to the prior art which is known to the person skilled in the art.

Claims (10)

1. The utility model provides a work piece location base that magnet steel was polished usefulness, including shell (1), polisher (2) and integrated control ware (201), be equipped with on shell (1) adaptation and polish polisher (2) to the work piece surface, fixed mounting has integrated control ware (201), its characterized in that on polisher (2): the device also comprises guide rails (3), electric sliding blocks (4), spring telescopic rods (5), supporting blocks (6), clamping assemblies, racks (801) and unidirectional gears (802), wherein the guide rails (3) are symmetrically and fixedly arranged in the shell (1), the electric sliding blocks (4) electrically connected with the integrated controller (201) are respectively arranged at one ends, far away from each other, of the two guide rails (3), the spring telescopic rods (5) are respectively and symmetrically arranged on the two electric sliding blocks (4), the supporting blocks (6) are fixedly arranged between the spring telescopic rods (5) on the same electric sliding block (4), the clamping assemblies for clamping and fixing workpieces are arranged on the two supporting blocks (6), each clamping assembly comprises a rotating shaft (701), a mounting block (702), a double-shaft cylinder (704) and a limiting frame (705), rotatable rotating shafts (701) are respectively arranged on the two supporting blocks (6), the mounting blocks (702) are respectively and fixedly connected with the ends, close to each other, of the two rotating shafts (701) are respectively and fixedly provided with double-shaft cylinders (704) electrically connected with the integrated controller (201), the telescopic cylinders (704) are respectively and the two shafts are fixedly connected with the clamping assemblies which can be clamped and fixedly connected with the clamping frames (801) on the shell (801), the two rotating shafts (701) are respectively provided with a unidirectional gear (802) which only rotates anticlockwise effectively, and the unidirectional gears (802) are meshed with racks (801) on the same side when the electric sliding block (4) moves.

2. The workpiece positioning base for grinding magnetic steel according to claim 1, wherein: the device also comprises top plates (706), wherein the top plates (706) are symmetrically and fixedly arranged in the shell (1), and the two top plates (706) are abutted with the same-side mounting blocks (702).

3. The workpiece positioning base for grinding magnetic steel according to claim 2, wherein: the two top plates (706) are provided with inclined planes which tilt upwards.

4. A workpiece positioning base for magnetic steel grinding as defined in claim 3, wherein: still including receiving material subassembly, be equipped with on spacing frame (705) and be used for carrying out the material subassembly that meets that receives to the work piece, connect material subassembly including fixed block (901), kicking block (902), riding block (904) and elasticity stay cord (905), respectively symmetrical fixed mounting has fixed block (901) on two spacing frames (705) on same biax cylinder (704), be equipped with respectively in every fixed block (901) and carry out gliding kicking block (902) under the effect of gravity, one side that two fixed blocks (901) on same spacing frame (705) are close to each other is equipped with respectively symmetrical riding block (904) that can correspond kicking block (902) looks butt, be equipped with elasticity stay cord (905) between every riding block (904) and the fixed block (901) that corresponds respectively.

5. The workpiece positioning base for grinding magnetic steel as set forth in claim 4, wherein: each top block (902) is provided with a trapezoid inclined plane (902 a), and the supporting blocks (904) on the same fixed block (901) can move along the trapezoid inclined planes (902 a) of the corresponding top blocks (902).

6. The workpiece positioning base for grinding magnetic steel according to claim 5, wherein: the device also comprises balancing weights (903), and each top block (902) is respectively provided with a balancing weight (903).

7. The workpiece positioning base for grinding magnetic steel according to claim 6, wherein: the novel lifting device is characterized by further comprising a dislocation assembly, wherein the dislocation assembly is arranged in the shell (1) and used for enabling two pairs of limiting frames (705) to vertically dislocation, the dislocation assembly comprises a moving block (1001), guide plates (1002), a rocker (1003) and a supporting plate (1004), the moving block (1001) is fixedly arranged at one end, close to the shell (1), of each rotating shaft (701), the guide plates (1002) are symmetrically and fixedly arranged in the shell (1), the two moving blocks (1001) can move along the guide plates (1002) on the same side, the rocker (1003) which are inclined upwards and can overturn downwards are respectively arranged on the two guide plates (1002), torsion springs are respectively arranged between the connecting positions of the two rocker (1003) and the corresponding guide plate (1002), and the supporting plate (1004) which can be used for supporting the moving block (1001) after the corresponding rocker (1003) passes through the inner symmetrical and fixedly arranged in the shell (1).

8. The workpiece positioning base for grinding magnetic steel according to claim 7, wherein: the polishing machine comprises a polishing machine body, and is characterized by further comprising a collecting assembly, wherein the front part of the bottom surface of the outer shell (1) is provided with a collecting assembly for uniformly collecting polished workpieces, the collecting assembly comprises a mounting frame (1101), a collecting basket (1102) and ejector rods (1103), the mounting frame (1101) is symmetrically and fixedly installed on the outer shell (1), a collecting basket (1102) with an arc-shaped inclined surface (1102 a) is slidably clamped between the two mounting frames (1101), ejector rods (1103) with downward inclined surfaces are symmetrically and fixedly installed in the collecting basket (1102), and the two ejector rods (1103) are abutted against two ejector blocks (902) on the same side.

9. The workpiece positioning base for grinding magnetic steel according to claim 8, wherein: the integrated controller is characterized by further comprising a signal sensor (1201) and a signal generator (1202), wherein the signal sensor (1201) is symmetrically and fixedly arranged in the shell (1) and is electrically connected with the integrated controller (201), the signal generator (1202) is fixedly arranged on two fixing blocks (901) which are close to one side of each of the two pairs of limiting frames (705) and are farthest from each other, and the two signal generators (1202) are electrically connected with the integrated controller (201).

10. The workpiece positioning base for grinding magnetic steel according to claim 9, wherein: the device also comprises a supporting frame (1301) and a pressing wheel (1302), wherein the supporting frame (1301) is fixedly installed on the shell (1), and the pressing wheel (1302) capable of pressing the workpiece in the limiting frame (705) is arranged on the supporting frame (1301).