CN110181281A - Magnet processing technology for neodymium iron boron production - Google Patents
Magnet processing technology for neodymium iron boron production Download PDFInfo
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- CN110181281A CN110181281A CN201910455387.2A CN201910455387A CN110181281A CN 110181281 A CN110181281 A CN 110181281A CN 201910455387 A CN201910455387 A CN 201910455387A CN 110181281 A CN110181281 A CN 110181281A
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- neodymium iron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
Abstract
This method discloses a kind of magnet processing technology for neodymium iron boron production, the following steps are included: a. perforation processing: by magnet punch device by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；B. cutting processing: by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；C. sharp processing: by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；Pass through the setting of above structure, so that ndfeb magnet is when carrying out punching processing, it can be to avoid the processing of multiple process, reduce the procedure of processing to ndfeb magnet, reduce the processing cost to neodymium iron boron, the batch machining effect to neodymium iron boron, the effective processing efficiency improved to neodymium iron boron may be implemented simultaneously.
Description
Technical field
This method belongs to neodymium iron boron magnetic body processing technique field, adds more particularly, to a kind of magnet for neodymium iron boron production
Work technique.
Background technique
Nd-Fe-B permanent magnet material is readily processible to because of the excellent characteristics with high remanent magnetism, high-coercive force, high energy product
The magnet of various shape, specification, therefore it is widely used in electroacoustic telecommunication, motor, instrument, nuclear magnetic resonance, magnetic suspension and magnetic seal
The device and equipment of equal permanent-magnetic fields, especially suitable for manufacturing various high-performance, complex-shaped product.
A kind of neodymium iron boron perforating device is disclosed in the open file that presently disclosed number is CN203330688U, which beats
Hole, fraising process are once completed, and cost of labor is greatly saved, improves production first-time qualification rate, substantially reduces production former material
Expect input cost, energy conservation and protective effect well are played to this non-renewable resources of rare earth raw material.Active response state
Family makes outstanding achievements to the control requirement in terms of the energy, energy-saving and emission-reduction.
But the device, when feeding transmits, since drill bit and reamer are located at different location, product is needed when feeding transmission
It is fixed twice, i.e., drilling position is fixed and fraising position is fixed, and process is relatively complicated, causes the processing cost of product higher.
Method content
This method for overcome the deficiencies in the prior art, provides that a kind of step is simple and processing is efficiently for neodymium iron boron production
Magnet processing technology.
To achieve the goals above, this method uses following technical scheme: a kind of magnet processing for neodymium iron boron production
Technique, the following steps are included: a. perforation processing: by magnet punch device by pole, square rod shape magnet perforation processing at cylinder
Shape or square tube shape magnet；B. cutting processing: by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；C. outer
Shape processing: by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；
Wherein, the magnet punch device includes workbench, for the both ends to pole magnet while punched first dozen
Hole module and the second perforating module, for respectively drive the first perforating module and mobile the first actuator of the second perforating module and
Second actuator, for place multiple pole magnet set material chamber and for be discharged punch after pole magnet discharge groove, institute
Workbench is stated equipped with the first arc fixed block and use for fixing the arc-shaped base of pole magnet, matching with arc-shaped base
In the driving device for driving the overturning of the first arc fixed block, the top for setting material chamber is equipped with turnover second arc and fixes
Block;Before punching to pole magnet, the second arc fixed block is first opened, then multiple pole magnet are placed sequentially in and are set
To expect intracavitary, overturns the second arc fixed block again, pole magnet is just in contact with the bottom surface of the second arc fixed block, at this point,
The starting of first actuator, it is mobile to drive the first perforating module, until being in contact with pole magnet, continues to push pole magnet, circle
Bar magnet is gradually moved on arc-shaped base, so that the first arc fixed block downwardly turns over, fixed pole magnet, then first dozen
Hole module and the starting of the second perforating module carry out punching processing simultaneously at the both ends of pole magnet, after punching, the second punching
Module pulls pole magnet mobile, until being moved to above discharge groove, is discharged along discharge groove；By the setting of above structure,
So that ndfeb magnet when carrying out punching processing, can reduce the processing to ndfeb magnet to avoid the processing of multiple process
Step reduces the processing cost to neodymium iron boron, while the batch machining effect to neodymium iron boron, effective raising may be implemented
To the processing efficiency of neodymium iron boron.
The neodymium iron boron carries out feeding by way of manual handling after the cutting-out process, then by using sander
Equipment carries out sanding burr to the edge of neodymium iron boron；Neodymium iron boron is handled using aforesaid way, neodymium iron boron can be improved
The smoothness on surface, so that subsequent processing is more simple and convenient.
The neodymium iron boron is sintered by the way of vacuum-sintering before polishing, when described NbFeB sintered
Temperature is 1100 DEG C, and sintering time when described NbFeB sintered is 4h；Using above-mentioned sintering processing, it is ensured that neodymium iron boron
Thermal-stable, reinforce effectively raising the processing efficiency to neodymium iron boron to the processing quality of neodymium iron boron.
The primary raw material of the neodymium iron boron magnetic body has the metal member of the rare earth metal neodymium of 29%-32.5%, 63.95-68.65%
Plain sheet, the nonmetalloid boron of 1.1-1.2%, 0.6-1.2% addition dysprosium, the niobium of 0.3-0.5%, the aluminium of 0.3-0.5%, 0.05-
The elements such as 0.15% copper；Using the setting of said ratio, allow neodymium iron boron it is stable produce, ensure that neodymium iron boron
The quality of production, it is very practical reliable.
The neodymium iron boron is made by the way of magnetic powder die mould, and the magnetic powder is process by the way of air-flow milling,
Environment mutual collision and fusion of the magnetic powder in high pressure draught；Powder processed is carried out through the above way, and producing for magnetic powder can be improved
Fineness, reinforcement produce quality to magnetic powder, improve and produce efficiency to magnetic powder.
The arc-shaped base is equipped with the drive block for driving the first arc fixed block automatic turning, the drive block
The inclined setting in top, the bottom of the arc-shaped base are equipped with working chamber, and the bottom of the drive block is equipped at least one
The first elastic component being fixedly connected with working chamber bottom, the two sides of the drive block are respectively equipped with limited block, the working chamber
Two sides are respectively equipped with the limiting slot matched with limited block；When pushing to pole magnet, pole magnet is moved up in arc-shaped base
Dynamic, inclination of the pole magnet at the top of drive block gradually pushes drive block, and drive block moves down, and the first elastic component is received
Contracting, the limited block moves down in limiting slot, and when pole magnet gradually leaves arc-shaped base, drive block can pass through the first elasticity
The control of part gradually moves up；By the setting of above structure, allow mobile realization liter of the above-mentioned drive block by neodymium iron boron
The movement effects of drop avoid neodymium iron boron from existing in order to grip automatically to neodymium iron boron in the moving process of neodymium iron boron
Shift when punching and influence drilling quality, and the setting of the first elastic component, can control drive block after punching from
It is dynamic to reset, in order to guarantee the duration of punching processing, improve the perforating efficiency to neodymium iron boron.
The side wall of the drive block is equipped with grinding tooth group, and the working chamber is equipped with the first transmission that grinding tooth group matches
Part, the second driving member and third driving member matched with the first driving member, on second driving member and third driving member point
Not She You the first driving groove and the second driving groove, the end of the first arc fixed block is equipped with first connecting portion and connects with first
The second connecting portion that socket part is arranged in vertical state, the second connecting portion are equipped with loose slot, and the loose slot, which is equipped with, to be used
In the 4th driving member for controlling the rotation of the first arc fixed block, the 4th driving member engages connection with third driving member, described
First driving groove and the second driving groove are equipped with transmission belt；During drive block moves down, drive block is driven by grinding tooth group
The rotation of first driving member, the rotation of the first driving member will drive the rotation of the second driving member, and the second driving member is driven by transmission belt
The rotation of third driving member, the rotation of third driving member drive the rotation of the 4th driving member, and the rotation of the 4th driving member drives second to connect
Socket part rotation, second connecting portion drive the overturning of the first arc fixed block；By the setting of above structure, so that above-mentioned first arc
Fixed block by the transmission of each driving member, can realize the effect of automatic turning, in order to neodymium iron when drive block is moved down
The step of boron is fixed automatically, reduces processing, reduces processing cost, at the same neodymium iron is ferromagnetic leave arc-shaped base after,
It can be very practical in order to fixation next time with self-return.
This method has the advantage that this is used for setting of the magnet processing technology of neodymium iron boron production by above structure,
So that above-mentioned neodymium iron boron processing when, can by the setting of above-mentioned arc-shaped base and the first arc fixed block, realize pair
The effect of neodymium iron boron gripped automatically is saved in order to reduce procedure of processing and process to neodymium iron boron to neodymium iron boron
Processing cost improves the processing efficiency to neodymium iron boron, very practical reliable.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of this method.
Fig. 2 is the schematic enlarged-scale view at the A in Fig. 1.
Fig. 3 is the schematic enlarged-scale view at the B in Fig. 1.
Fig. 4 is the three-dimensional cutaway view one of Fig. 1.
The schematic enlarged-scale view at C in Fig. 5 Fig. 4.
Fig. 6 is the three-dimensional cutaway view two of Fig. 1.
Fig. 7 is the schematic enlarged-scale view at the D in Fig. 6.
Fig. 8 is the schematic enlarged-scale view at the E in Fig. 7.
Fig. 9 is the three-dimensional cutaway view three of Fig. 1
Figure 10 is the schematic enlarged-scale view at the F in Fig. 9.
Figure 11 is the schematic enlarged-scale view at the G in Figure 10.
Specific embodiment
A kind of magnet processing technology for neodymium iron boron production, the following steps are included: a. perforation processing: being punched by magnet
Equipment is by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；B. cutting processing: by pole, square rod shape magnetic
Stable hole machined is at cylindric or square tube shape magnet；C. sharp processing: by pole, square rod shape magnet perforation processing at cylindric or
Square tube shape magnet；The neodymium iron boron carries out feeding by way of manual handling after the cutting-out process, then by using beating
Grinding machine equipment carries out sanding burr to the edge of neodymium iron boron；Neodymium iron boron is handled using aforesaid way, neodymium can be improved
The smoothness of iron boron surface, so that subsequent processing is more simple and convenient；The neodymium iron boron is burnt before polishing using vacuum
The mode of knot is sintered, and temperature when described NbFeB sintered is 1100 DEG C, when sintering when described NbFeB sintered
Between be 4h；Using above-mentioned sintering processing, it is ensured that the thermal-stable of neodymium iron boron reinforces the processing quality to neodymium iron boron,
Effectively raise the processing efficiency to neodymium iron boron；The primary raw material of the neodymium iron boron magnetic body has the rare earth metal of 29%-32.5%
Neodymium, the metallic elements of ferrum of 63.95-68.65%, the nonmetalloid boron of 1.1-1.2%, 0.6-1.2% addition dysprosium, 0.3-0.5%
Niobium, the aluminium of 0.3-0.5%, 0.05-0.15% the elements such as copper；Using the setting of said ratio, neodymium iron boron is stablized
Carry out produce, ensure that the quality of production of neodymium iron boron, it is very practical reliable；The neodymium iron boron is by the way of magnetic powder die mould
It is made, the magnetic powder is process by the way of air-flow milling, environment mutual collision and fusion of the magnetic powder in high pressure draught；
Powder processed is carried out through the above way, the fineness of producing of magnetic powder can be improved, and reinforcement is produced quality to magnetic powder, improved to magnetic
Powder produces efficiency.
As shown in figs. 1-11, wherein the magnet punch device includes workbench 1, same for the both ends to pole magnet
The first perforating module 2 and the second perforating module 3 of Shi Jinhang punching are punched for respectively driving the first perforating module 2 and second
The first mobile actuator 21 of module 3 and the second actuator 31 expect chamber 41 and for arranging for placing setting for multiple pole magnet
Out punch after pole magnet discharge groove 11, the workbench 1 be equipped with for fix pole magnet arc-shaped base 51, with
The first arc fixed block 52 that arc-shaped base 51 matches and the driving device for driving the first arc fixed block 52 to overturn, institute
The top for setting material chamber 41 is stated equipped with turnover second arc fixed block 42;Before punching to pole magnet, is first opened
Then multiple pole magnet are placed sequentially in and set in material chamber 41, overturn the second arc fixed block again by two arc fixed blocks 42
42, pole magnet is just in contact with the bottom surface of the second arc fixed block 42, at this point, the first actuator 21 starts, drives first
Perforating module 2 is mobile, until being in contact with pole magnet, continues to push pole magnet, pole magnet is gradually moved to arcuate bottom
On seat 51, so that the first arc fixed block 52 downwardly turns over, fixed pole magnet, then the first perforating module 2 and the second punching
Module 3 starts, and carries out punching processing simultaneously at the both ends of pole magnet, after punching, the second perforating module 3 pulls pole magnetic
Iron is mobile, until being moved to 11 top of discharge groove, is discharged along discharge groove 11；Above-mentioned first perforating module and the second perforating module
It is common punch device setting, is the prior art, details are not described herein again, and above-mentioned first actuator and the second actuator are adopted
It is arranged with rodless cylinder, is the prior art, details are not described herein again, and above-mentioned driving device is by the first driving member, the second driving member, the
Fit structure composition between three driving members and the 4th driving member.
Above-mentioned set in material chamber 41 is equipped with the curved plate 411 for being used to support pole magnet, the bottom of the curved plate 411
Equipped with set the second elastic component 412 for being fixedly connected of material chamber 41, the side wall for setting material chamber 41 is equipped with for limiting curved plate 411
Moving range fixing groove 412, the curved plate 411 is equipped with the movable block 413 that matches with fixing groove 412, described
Workbench 1 is equipped with the supporting table 12 for being used to support the rotation of the second arc fixed plate 42, sets on second arc fixed plate 42
There is outer portion 421, is set in the supporting table 12 there are two the spill spin block 121 for stopping the second arc fixed plate 42 to overturn and used
In the block 122 for stopping spill spin block 121；Before punching to neodymium iron boron, spill spin block is first rotated, spill spin block leaves outer portion, then
The second arc fixed plate is overturn, opening sets material chamber, multiple pole magnet are arranged successively and are placed on curved plate, with pole
Magnet is constantly placed, and curved plate constantly moves down, and the second elastic component is shunk, until curved plate can not move down again, overturning the
Two arc fixed blocks rotate spill spin block, so that spill spin block turns in outer portion, form locking, to complete to neodymium iron boron
Load, when uppermost neodymium iron boron leaves curved plate, next neodymium iron boron by the effect of the second elastic component, it is automatic on
It moves, is close to the second arc fixed block, waits to be processed；Above-mentioned second elastic component is arranged using helical spring, is the prior art, this
Place repeats no more；By the setting of above structure, so that self-feeding and batch processing effect may be implemented in pole magnet, save
Time needed for conveying pole magnet, effectively raise the processing efficiency to magnet.
The arc-shaped base 51 is equipped with the drive block 53 for driving 52 automatic turning of the first arc fixed block, the drive
The bottom of the inclined setting in the top of motion block 53, the arc-shaped base 51 is equipped with working chamber 54, the bottom of the drive block 53
Portion is equipped at least one first elastic component 531 being fixedly connected with 54 bottom of working chamber, and the two sides of the drive block 53 are set respectively
There is limited block 532, the two sides of the working chamber 54 are respectively equipped with the limiting slot 541 matched with limited block 532；To pole magnetic
When iron pushes, pole magnet moves on arc-shaped base 51, and inclination of the pole magnet at the top of drive block 53 is to drive block 53
Gradually pushing, drive block 53 moves down, and the first elastic component 531 is shunk, and the limited block 532 moves down in limiting slot 541,
When pole magnet gradually leaves arc-shaped base 51, drive block 53 can gradually be moved up by the control of the first elastic component 531；Above-mentioned
One elastic component is arranged using helical spring, is the prior art, details are not described herein again.
The side wall of the drive block 53 is equipped with grinding tooth group 533, and the working chamber 54 is equipped with what grinding tooth group 533 matched
First driving member 542, the second driving member 543 and third driving member 544 matched with the first driving member 542, described second passes
The first driving groove 545 and the second driving groove 546 are respectively equipped on moving part 543 and third driving member 544, first arc is fixed
The second connecting portion 522 that the end of block 52 is equipped with first connecting portion 521 and is arranged in vertical state with first connecting portion 521, institute
Second connecting portion 522 is stated equipped with loose slot 523, the loose slot 523 is equipped with for controlling 52 turns of the first arc fixed block
The 4th dynamic driving member 524, the 4th driving member 524 engage connection, first driving groove 545 with third driving member 544
Transmission belt 547 is equipped with the second driving groove 546；During drive block 53 moves down, drive block 53 passes through 533 band of grinding tooth group
Dynamic first driving member 542 rotation, the rotation of the first driving member 542 will drive the rotation of the second driving member 543, the second driving member 543
Third driving member 544 is driven to rotate by transmission belt 547, the rotation of third driving member 544 drives the rotation of the 4th driving member 524,
The rotation of 4th driving member 524 drives second connecting portion 522 to rotate, and second connecting portion 522 drives the first arc fixed block 52 to turn over
Turn；Above-mentioned first driving member, the second driving member, third driving member and the 4th driving member are all made of transmission gear setting, are existing
Technology, details are not described herein again, and it is the prior art, details are not described herein again that above-mentioned transmission belt, which is existing product currently on the market,.
One end of above-mentioned loose slot 523 between a drive shaft 55 and workbench 1 by being flexibly connected, in the drive shaft 55
Equipped with limiting section 551, the second connecting portion 522 is equipped with the limiting slot 525 matched with limiting section 551 and for for driving
The mobile shifting chute 526 of axis 55, the shifting chute 526 are equipped with the third elastic component 527 connecting with shifting chute 526, and above-mentioned the
Two perforating modules 3 are equipped with for controlling the mobile magnetic part 31 of the neodymium iron boron after processing；By the setting of above structure, so that
Above-mentioned neodymium iron boron can be moved by the effect of magnetic part with the movement of the second perforating module after perforation processing, with
Convenient for directly being conveyed after punching, the trouble of manual handling is avoided, the feeding effect to neodymium iron boron is effectively raised
Rate.
Above-mentioned third elastic component is arranged using helical spring, is the prior art, and details are not described herein again, and above-mentioned magnetic part uses
Permanent magnet setting, is the prior art, details are not described herein again, and after punching to neodymium iron boron, the first perforating module exits neodymium iron
The direction in the hole on boron, the second perforating module towards neodymium iron boron continues to move to, and pushes drive shaft, so that drive shaft is mobile, driving
The 4th driving member of mobile drive of axis is mobile, and the 4th driving member is separated with third driving member, and third elastic component is shunk, and third bullet
Property part have certain torsion, drive the first arc fixed block overturn to separation when angle, at this point, the first arc fixed block is put
Loose neodymium iron boron, magnetic part are in contact with neodymium iron boron, and magnetic part attracts neodymium iron boron, move with the movement of the first perforating module,
Until neodymium iron boron is fallen in discharge groove, and with the movement of neodymium iron boron, drive block is gradually increasing, and third driving member gradually turns
It is dynamic, until original state is returned to, at this point, the 4th driving member passes through the effect of third elastic component, return, just insertion third driving member
In, continue the processing of next neodymium iron boron.
Claims (7)
1. a kind of magnet processing technology for neodymium iron boron production, it is characterised in that: the following steps are included:
Perforation processing: by magnet punch device by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；
Cutting processing: by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；
Sharp processing: by pole, square rod shape magnet perforation processing at cylindric or square tube shape magnet；
Wherein, the magnet punch device include workbench (1), for the both ends to pole magnet and meanwhile punched first
Perforating module (2) and the second perforating module (3) are moved for respectively driving the first perforating module (2) and the second perforating module (3)
The first actuator (21) and the second actuator (31), for place multiple pole magnet set material chamber (41) and for be discharged beat
The discharge groove (11) of pole magnet behind hole, the workbench (1) be equipped with for fix pole magnet arc-shaped base (51),
The the first arc fixed block (52) matched with arc-shaped base (51) and the drive for driving the first arc fixed block (52) to overturn
Dynamic device, the top for setting material chamber (41) are equipped with turnover second arc fixed block (42);It is beaten to pole magnet
Kong Qian first opens the second arc fixed block (42), is then placed sequentially in multiple pole magnet and sets in material chamber (41), turns over again
Turn the second arc fixed block (42), pole magnet is just in contact with the bottom surface of the second arc fixed block (42), at this point, first drives
Moving part (21) starting, it is mobile to drive the first perforating module (2), until being in contact with pole magnet, continues to push pole magnet, circle
Bar magnet is gradually moved on arc-shaped base (51), so that the first arc fixed block (52) downwardly turns over, fixed pole magnet, and so
First perforating module (2) and the second perforating module (3) starting afterwards carry out punching processing simultaneously at the both ends of pole magnet, punch
After, the second perforating module (3) pulls pole magnet mobile, until being moved to above discharge groove (11), along discharge groove
(11) it is discharged.
2. the magnet processing technology according to claim 1 for neodymium iron boron production, it is characterised in that: the neodymium iron boron exists
Feeding is carried out by way of manual handling after cutting processing, then by using polishing machine equipment to the edge of neodymium iron boron
Carry out sanding burr.
3. the magnet processing technology according to claim 2 for neodymium iron boron production, it is characterised in that: the neodymium iron boron exists
It is sintered by the way of vacuum-sintering before polishing, temperature when described NbFeB sintered is 1100 DEG C, the neodymium
Sintering time when iron boron is sintered is 4h.
4. the magnet processing technology according to claim 1 for neodymium iron boron production, it is characterised in that: the neodymium-iron-boron
The primary raw material of body have the rare earth metal neodymium of 29%-32.5%, the metallic elements of ferrum of 63.95-68.65%, 1.1-1.2% it is nonmetallic
Element boron, the addition dysprosium of 0.6-1.2%, the niobium of 0.3-0.5%, the aluminium of 0.3-0.5%, 0.05-0.15% the elements such as copper.
5. the magnet processing technology according to claim 1 for neodymium iron boron production, it is characterised in that: the neodymium iron boron is adopted
It is made of the mode of magnetic powder die mould, the magnetic powder is process by the way of air-flow milling, and the magnetic powder is in high pressure draught
The mutual collision and fusion of environment.
6. the magnet processing technology according to claim 1 for neodymium iron boron production, it is characterised in that: the arc-shaped base
(51) drive block (53) for driving first arc fixed block (52) automatic turning, the top of the drive block (53) are equipped with
The bottom of inclined setting, the arc-shaped base (51) is equipped with working chamber (54), and the bottom of the drive block (53) is equipped with
The two sides of at least one the first elastic component (531) being fixedly connected with working chamber (54) bottom, the drive block (53) are set respectively
Have limited block (532), the two sides of the working chamber (54) are respectively equipped with the limiting slot (541) matched with limited block (532)；?
When pushing to pole magnet, pole magnet moves on arc-shaped base (51), pole magnet inclining at the top of drive block (53)
Tiltedly drive block (53) is gradually pushed, drive block (53) moves down, and the first elastic component (531) is shunk, the limited block (532)
It is moved down in limiting slot (541), when pole magnet gradually leaves arc-shaped base (51), drive block (53) can pass through the first elasticity
The control of part (531) gradually moves up.
7. the magnet processing technology according to claim 6 for neodymium iron boron production, it is characterised in that: the drive block
(53) side wall is equipped with grinding tooth group (533), and the working chamber (54) is equipped with the first driving member that grinding tooth group (533) match
(542), the second driving member (543) and third driving member (544) matched with the first driving member (542), second transmission
The first driving groove (545) and the second driving groove (546), first arc are respectively equipped on part (543) and third driving member (544)
The end of shape fixed block (52) be equipped with first connecting portion (521) and be arranged in vertical state with first connecting portion (521) second
Interconnecting piece (522), the second connecting portion (522) are equipped with loose slot (523), and the loose slot (523) is equipped with for controlling
Make the 4th driving member (524) of the first arc fixed block (52) rotation, the 4th driving member (524) and third driving member
(544) engagement connection, first driving groove (545) and the second driving groove (546) are equipped with transmission belt (547)；In drive block
(53) during moving down, drive block (53) drives the first driving member (542) rotation, the first driving member by grinding tooth group (533)
(542) rotation will drive the second driving member (543) rotation, and the second driving member (543) drives third to pass by transmission belt (547)
Moving part (544) rotation, the rotation of third driving member (544) drive the rotation of the 4th driving member (524), the 4th driving member (524)
Rotation, drives second connecting portion (522) rotation, and second connecting portion (522) drives the overturning of the first arc fixed block (52).
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| CN110181281B (en) | 2021-01-01 |
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