CN202185587U

CN202185587U - Turning device for motor rotors

Info

Publication number: CN202185587U
Application number: CN2011202035204U
Authority: CN
Inventors: 梁文光
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-04-11
Anticipated expiration: 2021-06-16

Abstract

The utility model relates to the technical field of turning equipment, in particular to a turning device for motor rotors, which comprises a framework and a supporting bed plate. The supporting bed plate is mounted at the upper end of the framework, a spindle fixing seat and a base are disposed on the upper surface of the supporting bed plate in an aligned manner, a spindle is mounted on the spindle fixing seat, a power input end of the spindle is in drive connection with a motor, a power output end of the spindle is in drive connection with a rotor to be turned, the spindle is fixed to the spindle fixing seat by a bearing, a V-shaped frame is mounted above the base, bearing positions positioned at two ends of the rotor to be turned are respectively supported by the V-shaped frame, and a head driven by a hydraulic cylinder is movably mounted on the rear of the base and consists of a compression belt fixed on the head by the aid of at least two first belt pulleys. During operation, the rotor to be turned is driven via the spindle, the compression belt realizes compression, and the V-shaped frame is used for positioning. The turning device can be used for processing in large cutting output, and is high in processing, and surface smoothness and coaxiality precision of processed products can be effectively improved.

Description

A kind of motor rotor truning fixture

Technical field

The utility model relates to the turning equipment technical field, relates in particular to a kind of motor rotor truning fixture.

Background technology

In motor (motor) manufacturing, generally need be through the rotor blank of die cast through the periphery wall of turning mode processing rotor.In the process of manufacture of reality, production firm generally adopts universal lathe or special-purpose rotor truning fixture (the for example rough turn machine of motor rotor, motor rotor finish turning machine or the rough turn machine of motor rotor essence etc.) to realize the periphery wall of rotor blank is processed.

Yet; In use often there are many defectives in existing engine lathe and special-purpose rotor truning fixture; Concrete process below in conjunction with engine lathe and special-purpose rotor truning fixture is elaborated to above-mentioned defective: 1, in the process of the periphery wall that utilizes engine lathe turning rotor blank; Lathe is fixed in through scroll chuck or chuck in one end of treating the turning rotor, treats that the location is realized through thimble in the other end of turning rotor; Because thimble the unsettled phenomenon of roof pressure can occur and treat that the main shaft of turning rotor generally can be bent owing to the thimble active force is excessive in roof pressure is treated the process of turning rotor; Comprehensive above-mentioned situation can know that there is the defective of clamping inconvenience, rotor crudy difference in engine lathe in the process of the periphery wall of turning rotor blank; 2, in the process of the periphery wall that utilizes special-purpose rotor truning fixture turning rotor blank; Treating that the turning rotor is equipped on the V-type frame and through the belt that is installed on head drives; Wherein, belt mainly is through it and treats that rubbing action between the periphery wall of turning rotor drives and treat the turning rotor rotation; In the process of the periphery wall of turning rotor blank, belt tends to occur comparatively serious wearing and tearing; In addition; The turning amount of the each feed of lathe tool is little; Reason is: belt and treat that the frictional force between the turning rotor is limited; When the turning amount increases to a certain degree and makes cutting force greater than belt and when treating the frictional force between the turning rotor, the phenomenon that belt can occur skidding, treat the turning rotor can occur vibrating and rotate the phenomenon that stops and causing processing after the periphery wall fineness of rotor relatively poor.

Summary of the invention

The purpose of the utility model is to the deficiency of prior art a kind of motor rotor truning fixture to be provided, and this motor rotor truning fixture turning efficient is high, processing is stable and crudy is good.

For achieving the above object, this practical phenomenon realizes through following technical scheme.

A kind of motor rotor truning fixture; The support platen that includes frame and be installed in the upper end of frame; The upper surface alignment of supporting platen is provided with main shaft holder and support; The main shaft holder is equiped with that power intake is connected with motor-driven and clutch end and the main shaft of treating that the turning rotor driven is connected, and in the main shaft holder, the top of support is equiped with the V-type frame of the bearing position that is used to support to lay respectively at the both ends of treating the turning rotor to main shaft through bearing fixing; The rear side of support is equiped with the head through Driven by Hydraulic Cylinder movably, and head includes the belt that compresses that is fixed in head through at least two first belt pulleys.

Wherein, Said motor is connected through belt gear with the power intake of said main shaft; Belt gear includes second belt pulley and driving belt, and second belt pulley is fixed in the power intake of main shaft, and second belt pulley is connected with the output of motor through driving belt.

Wherein, The clutch end of said main shaft is not set with the drive bar movably, drives bar and is equipped with the drive circle that removably is fixed in an end of treating the turning rotor, drives bar and is connected with the driving of drive circle; Wherein, the drive circle is positioned at and treats that the turning rotor is near an end that drives bar.

Wherein, said drive bar extends towards the direction of said V-type frame and is provided with two symmetrically arranged main drive rods, said drive circle towards the axis direction perpendicular to said main shaft extend be provided with two symmetrically arranged from drive rod; Treat in the process of turning rotor rotation that in main shaft drives two main drive rods and two are arranged in a crossed manner each other from drive rod, main drive rod replace respective side from drive rod.

Wherein, Said V-type frame includes left V-type frame and the right V-type frame that alignment is provided with; The bottom of left side V-type frame is equipped with along the left slider of the axis direction slip of said main shaft and the left rail that cooperates with left slider; Left rail is fixed in the upper surface of said support, and left slider is fixed in the bottom of left V-type frame; The bottom of right V-type frame is equipped with right slide block that aligns with left slider and the right guide rail that cooperates and align with left rail with right slide block, and right guide rail is fixed in the upper surface of support, and right slide block is fixed in the bottom of right V-type frame.

Wherein, said left V-type frame and said right V-type frame offer the limited impression of V-arrangement shape respectively, the bilateral symmetry of limited impression and be equiped with two Limit Bearings rotationally.

Wherein, The below of said head is equiped with the head holder; Said support platen is fixed in the bottom of head holder; The upper end and the head of head holder are hinged, and said first belt pulley and said compresses the work end that belt is installed in head respectively, and the plunger of said hydraulic cylinder drives with the drive end of head and is connected.

Wherein, The work end of said head includes left fixed head and the right fixed head that alignment is provided with; Said first belt pulley is installed between left fixed head and the right fixed head through first rotating shaft; At least be provided with two joint pins between left side fixed head and the right fixed head, the both ends of joint pin are fixedly connected with the left fixed head and the right fixed head of respective side respectively.

Wherein, Be equiped with idler between said left fixed head and the said right fixed head; Idler is installed between left fixed head and the right fixed head through second rotating shaft, and the both end sides of idler is equipped with the tensioning adjusting device respectively, and left fixed head and right fixed head offer the limiting through hole of oval shape respectively; The both ends of second rotating shaft are nested in respectively in the limiting through hole of left fixed head and right fixed head of respective side, and the tensioning adjusting device is connected with the end of second rotating shaft.

Wherein, Said tensioning adjusting device includes fixed block, regulates bolt, spring and adjusting nut; Last fixed block, spring, said second rotating shaft and adjusting nut are arranged in order from top to bottom; The last fixed block of two tensioning adjusting devices is individually fixed in corresponding said left fixed head and said right fixed head, and the adjusting bolt runs through the end of fixed block, spring, second rotating shaft successively and is connected with adjusting nut.

The beneficial effect of the utility model is: the described a kind of motor rotor truning fixture of the utility model; The support platen that includes frame and be installed in the upper end of frame; The upper surface alignment of supporting platen is provided with main shaft holder and support; The main shaft holder is equiped with that power intake is connected with motor-driven and clutch end and the main shaft of treating that the turning rotor driven is connected; Main shaft passes through bearing fixing in the main shaft holder; The top of support is equiped with the V-type frame of the bearing position that is used to support to lay respectively at the both ends of treating the turning rotor, and the rear side of support is equiped with the head through Driven by Hydraulic Cylinder movably, and head includes the belt that compresses that is fixed in head through at least two first belt pulleys.In the utility model course of work, treat the turning rotor through driving by motor-driven main shaft and the belt that compresses through head compresses, simultaneously, the V-type frame is used to locate and guarantee the coaxial precision of rotor; In terms of existing technologies, the utility model can be realized big cutting output processing, and working (machining) efficiency is high; In addition, treat in the process of turning rotor rotation, treat that vibrating and compressing the phenomenon that belt can not occur skidding can not appear in the turning rotor, and then improved the surface smoothness and the coaxial precision of processing back product effectively in main shaft drives.

Description of drawings

Utilize accompanying drawing to come the utility model is further described below, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation at another visual angle of the utility model.

Fig. 3 is the local enlarged diagram of " A " shown in Figure 2 position.

In Fig. 1 to Fig. 3, include:

1---supports platen 2---main shaft holder 3---support

4---main shaft 41---second belt pulley 42---driving belts

43---drive bar 431---main drive rod 44---and drive circle

441------V-type frame 51---left V-type framves from drive rod 5

52---right V-type frame 53---limited impression 54---Limit Bearings

6---head 61---first belt pulley 611---first rotating shafts

62------left fixed head 64---right fixed heads that compress belt 63

65---joint pin 66---idler 661---second rotating shafts

67---limiting through hole 71---left slider 72---left rails

73---right slide block 74---right guide rail 8---head holders

9---tensioning adjusting device 91---last fixed block 92---adjusting bolts

93---spring 94---adjusting nut.

The specific embodiment

Come the utility model is further explained below in conjunction with embodiment.

Embodiment one; Extremely shown in Figure 3 like Fig. 1; A kind of motor rotor truning fixture; The support platen 1 that includes the frame (not shown) and be installed in the upper end of frame, the upper surface alignment of supporting platen 1 is provided with main shaft holder 2 and support 3, and main shaft holder 2 is equiped with power intake and is connected and clutch end and the main shaft 4 of treating that the turning rotor driven is connected with the driving of motor (not shown); Main shaft 4 passes through bearing fixing in main shaft holder 2; The top of support 3 is equiped with the V-type frame 5 of the bearing position that is used to support to lay respectively at the both ends of treating the turning rotor, and the rear side of support 3 is equiped with the head 6 through Driven by Hydraulic Cylinder movably, and head 6 includes through what two first belt pulleys 61 were fixed in head 6 compress belt 62 at least.

The utility model is mainly used in special-purpose rotor truning fixture, for example the rough turn machine of motor rotor, motor rotor finish turning machine and the rough turn machine of motor rotor essence etc.In the utility model assembling process; Main shaft holder 2 and support 3 are fixed in through screw respectively and support platen 1; Main shaft holder 2 offers installing hole, is fitted with bearing in the installing hole, and main shaft 4 is nested in the installing hole and passes through bearing fixing in main shaft holder 2.The power intake of main shaft 4 drives with the output of motor and is connected; Wherein, The output of motor can be connected (as depicted in figs. 1 and 2) with the power intake of main shaft 4 through belt gear; Concrete: belt gear includes the power intake that second belt pulley 41 and driving belt 42, the second belt pulleys 41 are fixed in main shaft 4, and second belt pulley 41 is connected with the output of motor through driving belt 42.Certainly, above-mentioned belt gear does not constitute the restriction to the utility model, and promptly the utility model can also adopt gear drive and chain drive that the power intake of main shaft 4 and the output of motor are connected together.

Before the utility model work; Treat that the turning rotor is equipped on V-type frame 5; Wherein, V-type frame 5 supports the bearing position of treating the turning rotor, and must further explain: the bearing position of treating the both ends of turning rotor has higher coaxial precision; Two bearing positions of treating the turning rotor are equipped on V-type frame 5, can guarantee that like this periphery wall of the rotor after turning processing is coaxial with two bearing positions.In the utility model course of work; Driven by Hydraulic Cylinder head 6 swing and making compresses belt 62 and compresses downwards and treat the turning rotor; Then; Motor-driven main shaft 4 rotates and then drives treats the turning rotor rotation, and the turning rotor of treating after the rotation can carry out turning processing through the lathe tool that is installed on the knife rest (not shown), rotation treat that the turning rotor is through compressing belt 62 and treating that rubbing action between the turning rotor drives and compress belt 62 and move; Must further explain; The utility model directly drives through main shaft 4 and treats the turning rotor rotation, and for the rotor truning fixture of traditional special use, the utility model can make to be treated the rotation of turning rotor stability ground and man-hour can not occur treating that the turning rotor stops operating and compresses the phenomenon that belt 62 skids adding; Can not treat the turning rotor oscillation owing to cutting force becomes to cause greatly yet; So the utility model can be realized the processing of big cutting output man-hour adding, working (machining) efficiency is high; In addition, comprehensive above-mentioned situation can know that the utility model can improve the surface smoothness and the coaxial precision of the periphery wall of the rotor after turning processing effectively.In addition, add man-hour at the utility model, compress belt 62 and be in driven state, for the rotor truning fixture of traditional special use, the belt 62 that compresses of the utility model weares and teares less.

As preferred embodiment; The clutch end of main shaft 4 is not set with movably and drives bar 43; Drive bar 43 and be equipped with the drive circle 44 that removably is fixed in an end of treating the turning rotor; Drive bar 43 and be connected with 44 drivings of drive circle, wherein, drive circle 44 is positioned at treats the end of turning rotor near drive bar 43; Concrete, drive bar 43 and extend towards the direction of V-type frame 5 and be provided with two symmetrically arranged main drive rods 431, drive circle 44 towards the axis direction perpendicular to main shaft 4 extend be provided with two symmetrically arranged from drive rod 441; Drive at main shaft 4 and to treat in the process of turning rotor rotation, two main drive rods 431 and two are arranged in a crossed manner each other from drive rod 441, main drive rod 431 replace respective side from drive rod 441 (as depicted in figs. 1 and 2).In the utility model course of work, main shaft 4 drives and drives bar 43, drives bar 43 rotating band moving-coils 44 and final the driving and treats the turning rotor rotation; Main shaft 4 is connected with treating the turning rotor through above-mentioned connected mode, will drive circle 44 before the processing and be fixed in the end of treating the turning rotor, adds need only get final product treating that the turning rotor is equipped on V-type frame 5 and drive circle 44 is cooperated with drive bar 43 man-hour; So relative engine lathe the utlity model has the advantage of convenient mounting and clamping.

Embodiment two; Present embodiment two is with the difference of embodiment one: because the motor of different size specification has the rotor of different size; For satisfying the requirement of the rotor of processing the different size specification; The utility model is designed to V-type frame 5 adjustable, is specially: V-type frame 5 includes left V-type frame 51 and the right V-type frame 52 that alignment is provided with, and the bottom of left V-type frame 51 is equipped with along the left slider 71 of the axis direction slip of main shaft 4 and the left rail 72 that cooperates with left slider 71; Left rail 72 is fixed in the upper surface of support 3, and left slider 71 is fixed in the bottom of left V-type frame 51; The bottom of right V-type frame 52 is equipped with right slide block 73 that aligns with left slider 71 and the right guide rail 74 that cooperates and align with left rail 72 with right slide block 73, and right guide rail 74 is fixed in the upper surface of support 3, and right slide block 73 is fixed in the bottom of right V-type frame 52.In the time will treating that the turning rotor is equipped between left V-type frame 51 and the right V-type frame 52, the bearing position of the left part of turning rotor is treated in left V-type frame 51 alignment, and the bearing position of the right part of turning rotor is treated in right V-type frame 52 alignment; When the length in the turning zone of treating the turning rotor was elongated, left V-type frame 51 must move respectively with right V-type frame 52 laterally; When the length in the turning zone of treating the turning rotor shortened, left V-type frame 51 must move respectively with right V-type frame 52 to the inside; Must further explain, regulate between left V-type frame 51 and the right V-type frame 52 apart from the time, treat must to align with the belt 62 that compresses of head 6 in the turning zone of turning rotor.So the V-type frame 5 of above-mentioned adjustable structure can enlarge the range of work of the utility model, and then the adaptability of enhancing the utility model.

Further, left V-type frame 51 and right V-type frame 52 offer the limited impression 53 of V-arrangement shape respectively, the bilateral symmetry of limited impression 53 and be equiped with two Limit Bearings 54 (as depicted in figs. 1 and 2) rotationally.Treat in the process of turning rotor rotation in main shaft 4 drivings; Treat that the relative V-type frame 5 of turning rotor rotates; The bearing position at the both ends through will treating the turning rotor is equipped on two Limit Bearings 54 of left V-type frame 51 and right V-type frame 52; The quality of bearing position at the both ends of the rotor after turning processing can be guaranteed like this, simultaneously, the stationarity of treating the turning rotor rotation can also be further strengthened.

Embodiment three; Present embodiment three is with the difference of embodiment one: the below of head 6 is equiped with head holder 8; The bottom of head holder 8 is fixed in and is supported platen 1; The upper end of head holder 8 and head 6 are hinged, and first belt pulley 61 and compress the work end that belt 62 is installed in head 6 respectively, the plunger of hydraulic cylinder drive with the drive end of head 6 and be connected; Further; The work end of head 6 includes left fixed head 63 and the right fixed head 64 that alignment is provided with; First belt pulley 61 is installed between left fixed head 63 and the right fixed head 64 through first rotating shaft 611; At least be provided with two joint pins 65 between left side fixed head 63 and the right fixed head 64, the both ends of joint pin 65 are fixedly connected with the left fixed head 63 and the right fixed head 64 of respective side respectively.In the utility model assembling process, head 6 can be through left fixed head 63 and head holder 8 hinged (as shown in Figure 1), and it is hinged with head holder 8 also can to pass through right fixed head 64; Left side fixed head 63 is connected together through at least two joint pins 65 with right fixed head 64, and wherein, the both ends of joint pin 65 are spirally connected with the left fixed head 63 and the right fixed head 64 of respective side respectively.Must explain that further first rotating shaft 611 is nested in the centre bore of first belt pulley 61, and the both ends of first rotating shaft 611 are fixed in the left fixed head 63 and the right fixed head 64 of respective side respectively through the mode of being spirally connected.The belt 62 that compresses utilizing head 6 compresses in the process of treating the turning rotor; The drive end of the plunger actuation head 6 of hydraulic cylinder is upwards lifted, and head 6 rotates and make the work end swing downwards of head 6 and then compress and treat the turning rotor through compressing belt 62 around the articulated position of itself and head holder 8.

Further; Consider and compress the phenomenon that belt 62 can occur relaxing in the course of the work; The tensioning adjusting device 9 that the utility model is equipped with idler 66 and regulates idler 66 positions; Be specially: be equiped with idler 66 between left fixed head 63 and the right fixed head 64; Idler 66 is installed between left fixed head 63 and the right fixed head 64 through second rotating shaft 661, and the both end sides of idler 66 is equipped with tensioning adjusting device 9 respectively, and left fixed head 63 and right fixed head 64 offer the limiting through hole 67 of oval shape respectively; The both ends of second rotating shaft 661 are nested in respectively in the limiting through hole 67 of left fixed head 63 and right fixed head 64 of respective side, and tensioning adjusting device 9 is connected with the end of second rotating shaft 661; More specifically; Tensioning adjusting device 9 includes fixed block 91, regulates bolt 92, spring 93 and adjusting nut 94; Last fixed block 91, spring 93, second rotating shaft 661 and adjusting nut 94 are arranged in order from top to bottom; The last fixed block 91 of two tensioning adjusting devices 9 is individually fixed in corresponding left fixed head 63 and right fixed head 64, and adjusting bolt 92 runs through the end of fixed block 91, spring 93, second rotating shaft 661 successively and is connected with adjusting nut 94.To shown in Figure 3, idler 66 is erected between left fixed head 63 and the right fixed head 64 through second rotating shaft 661 like Fig. 1, and wherein, the both ends of second rotating shaft 661 are nested in the limiting through hole 67 of respective side; Utilizing tensioning adjusting device 9 to drive second rotating shaft 661 when limiting through hole 67 moves, the position of idler 66 is moved and is made that compressing belt 62 is in tensioning state.The tensioning adjusting device 9 of the utility model includes fixed block 91, regulates bolt 92, spring 93 and adjusting nut 94, and wherein, the corresponding bolt 92 of regulating in the end of the last fixed block 91 and second rotating shaft 661 offers through hole respectively; In tensioning adjusting device 9 assembling processes, regulate the through hole that bolt 92 passes fixed block 91 from top to bottom successively, the interstitial hole of spring 93, the through hole of second rotating shaft 661 and also finally be connected with the adjusting nut 94 that is positioned at second rotating shaft, 661 belows.When utilizing above-mentioned tensioning adjusting device 9 to regulate the position of idlers 66, operating personnel's turn adjusting nut 94 also makes second rotating shaft 661 move up, and then makes idler 66 segment distance that moves up.Must explain that further the spring 93 of above-mentioned tensioning adjusting device 9 mainly plays cushioning effect, and then make that compressing belt 62 works more steady.

Above content is merely the preferred embodiment of the utility model; For those of ordinary skill in the art; According to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, this description should not be construed as the restriction to the utility model.

Claims

1. motor rotor truning fixture; The support platen (1) that includes frame and be installed in the upper end of frame; It is characterized in that: the upper surface alignment of supporting platen (1) is provided with main shaft holder (2) and support (3); Main shaft holder (2) be equiped with that power intake is connected with motor-driven and clutch end with treat the main shaft that the turning rotor driven is connected (4); Main shaft (4) passes through bearing fixing in main shaft holder (2); The top of support (3) is equiped with the V-type frame (5) of the bearing position that is used to support to lay respectively at the both ends of treating the turning rotor, and the rear side of support (3) is equiped with the head (6) through Driven by Hydraulic Cylinder movably, and head (6) includes through what two first belt pulleys (61) were fixed in head (6) compress belt (62) at least.

2. a kind of motor rotor truning fixture according to claim 1; It is characterized in that: said motor is connected through belt gear with the power intake of said main shaft (4); Belt gear includes second belt pulley (41) and driving belt (42); Second belt pulley (41) is fixed in the power intake of main shaft (4), and second belt pulley (41) is connected with the output of motor through driving belt (42).

3. a kind of motor rotor truning fixture according to claim 1; It is characterized in that: the clutch end of said main shaft (4) is not set with movably and drives bar (43); Drive bar (43) and be equipped with the drive circle (44) that removably is fixed in an end of treating the turning rotor; Drive bar (43) and be connected with drive circle (44) driving, wherein, drive circle (44) is positioned at treats the end of turning rotor near drive bar (43).

4. a kind of motor rotor truning fixture according to claim 3; It is characterized in that: said drive bar (43) extends towards the direction of said V-type frame (5) and is provided with two symmetrically arranged main drive rods (431), said drive circle (44) towards the axis direction perpendicular to said main shaft (4) extend be provided with two symmetrically arranged from drive rod (441); Drive at main shaft (4) and to treat in the process of turning rotor rotation that two main drive rods (431) are arranged in a crossed manner each other from drive rod (441) with two, main drive rod (431) replace respective side from drive rod (441).

5. a kind of motor rotor truning fixture according to claim 1; It is characterized in that: said V-type frame (5) includes left V-type frame (51) and the right V-type frame (52) that alignment is provided with; The bottom of left side V-type frame (51) is equipped with along the left slider (71) of the axis direction slip of said main shaft (4) and the left rail (72) that cooperates with left slider (71); Left rail (72) is fixed in the upper surface of said support (3), and left slider (71) is fixed in the bottom of left V-type frame (51); The bottom of right V-type frame (52) is equipped with right slide block (73) that aligns with left slider (71) and the right guide rail (74) that cooperates and align with left rail (72) with right slide block (73); Right guide rail (74) is fixed in the upper surface of support (3), and right slide block (73) is fixed in the bottom of right V-type frame (52).

6. a kind of motor rotor truning fixture according to claim 5; It is characterized in that: said left V-type frame (51) and said right V-type frame (52) offer the limited impression (53) of V-arrangement shape respectively, the bilateral symmetry of limited impression (53) and be equiped with two Limit Bearings (54) rotationally.

7. a kind of motor rotor truning fixture according to claim 1; It is characterized in that: the below of said head (6) is equiped with head holder (8); Said support platen (1) is fixed in the bottom of head holder (8); The upper end of head holder (8) and head (6) are hinged; Said first belt pulley (61) and said compresses the work end that belt (62) is installed in head (6) respectively, and the plunger of said hydraulic cylinder drives with the drive end of head (6) and is connected.

8. a kind of motor rotor truning fixture according to claim 7; It is characterized in that: the work end of said head (6) includes left fixed head (63) and the right fixed head (64) that alignment is provided with; Said first belt pulley (61) is installed between left fixed head (63) and the right fixed head (64) through first rotating shaft (611); At least be provided with two joint pins (65) between left side fixed head (63) and the right fixed head (64), the both ends of joint pin (65) are fixedly connected with the left fixed head (63) and the right fixed head (64) of respective side respectively.

9. a kind of motor rotor truning fixture according to claim 8; It is characterized in that: be equiped with idler (66) between said left fixed head (63) and the said right fixed head (64); Idler (66) is installed between left fixed head (63) and the right fixed head (64) through second rotating shaft (661); The both end sides of idler (66) is equipped with tensioning adjusting device (9) respectively; Left side fixed head (63) and right fixed head (64) offer the limiting through hole (67) of oval shape respectively; The both ends of second rotating shaft (661) are nested in respectively in the limiting through hole (67) of left fixed head (63) and right fixed head (64) of respective side, and tensioning adjusting device (9) is connected with the end of second rotating shaft (661).

10. a kind of motor rotor truning fixture according to claim 9; It is characterized in that: said tensioning adjusting device (9) includes fixed block (91), regulates bolt (92), spring (93) and adjusting nut (94); Last fixed block (91), spring (93), said second rotating shaft (661) and adjusting nut (94) are arranged in order from top to bottom; The last fixed block (91) of two tensioning adjusting devices (9) is individually fixed in corresponding said left fixed head (63) and said right fixed head (64), and adjusting bolt (92) runs through the end of fixed block (91), spring (93), second rotating shaft (661) successively and is connected with adjusting nut (94).