CN208528734U - A kind of turnover device for crankshaft-link rod processing - Google Patents
A kind of turnover device for crankshaft-link rod processing Download PDFInfo
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- CN208528734U CN208528734U CN201821110663.9U CN201821110663U CN208528734U CN 208528734 U CN208528734 U CN 208528734U CN 201821110663 U CN201821110663 U CN 201821110663U CN 208528734 U CN208528734 U CN 208528734U
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- Prior art keywords
- crankshaft
- link rod
- sliding seat
- actuator
- turnover device
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Abstract
The utility model provides a kind of turnover device for crankshaft-link rod processing, belongs to field of mechanical technique.It solves the problems, such as how crankshaft-link rod automatic turning is realized under the premise of reducing the cost and failure rate of crankshaft-link rod process equipment.This turnover device for being used for crankshaft-link rod processing includes pedestal, pedestal is equipped with sliding seat and actuator one, actuator one can drive sliding seat opposite base to be moved forward and backward, the front end of sliding seat is equipped with lobe plate, the front side of lobe plate has the pushing tow face for pushing crankshaft-link rod to overturn, the front end of sliding seat is additionally provided with the locating piece for crankshaft-link rod overturning positioning, and actuator two is provided on sliding seat, and lobe plate can be swung under the driving of actuator two towards locating piece position.Present apparatus independent design, structure is simple, low cost, is not susceptible to failure, after installing the present apparatus additional, can substantially reduce the cost of crankshaft-link rod process equipment, mitigate the financial burden of enterprise significantly.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of turnover device for crankshaft-link rod processing.
Background technique
Crankshaft is the main rotary gadget of engine, and mainly there are two important components for crankshaft: trunnion and rod journal.It is main
The central axis of axle journal is the centre of gyration of crankshaft, and rod journal and the centre of gyration have certain eccentricity, crankshaft around
When the centre of gyration rotation of itself, rod journal revolves around the centre of gyration.After crankshaft forming, in order to enable the ruler of crankshaft
It is very little to meet certain required precision, need to carry out crankshaft grinding, the grinding of crankshaft is mainly the pitman shaft to crankshaft
Neck, trunnion carry out grinding.
In the prior art, crankshaft is usually to be ground in special purpose grinder.The trunnion of crankshaft generally uses cylindrical grinder pair
It is ground, and the trunnion of crankshaft is placed on the head frame of grinding machine and the centre of gyration line of tailstock spindle, in the revolution of crankshaft
The heart is overlapped with the centre of gyration line of head frame, tailstock spindle, and crankshaft is rotated around its centre of gyration, and grinding wheel uses the side of peripheral milling
Formula is ground trunnion.And the special purpose grinder for being used to be ground the rod journal of crankshaft leads to generally using cylindrical grinder as fundamental mode
The special fixture being arranged on the head frame and tailstock of grinding machine is crossed, rod journal is placed in the centre of gyration line of a frame, tailstock spindle
On, i.e., the center line of rod journal is overlapped with the centre of gyration line of head frame, tailstock spindle, and crankshaft is revolved around the center line of rod journal
Turn, grinding wheel is ground rod journal by the way of peripheral milling.
As Chinese patent [application number: 201110229653.3] discloses a kind of eccentric clamp of crank shaft comprising method of principal axis
Blue disk, packing, eccentric disc, clamp body, crankshaft clamping, packing are fixedly mounted in spindle flange disk hole, are set on the inside of packing
There is eccentric disc mounting hole, the eccentric disc with eccentric shaft is fixed on packing, and clamp body inner hole is mounted on eccentric shaft by bearing
On.It is additionally provided with several T-slot holes on packing, is cooperated by T shape screw and nut and is compressed, clamp body is fixed on packing.Folder
Specific front is installed by crankshaft clamping.The invention can be according to different eccentricity of crankshaft sizes, to replace eccentric disc.By more
Eccentric disc eccentric is changed away from suitable for making the eccentric clamp of crank shaft of turning, the various Large Crankshaft connecting rod necks of grinding.
But when crankshaft have multiple rod journals, and each rod journal crankshaft circumferencial direction have differential seat angle when,
It so just needs to carry out overturning adjustment to crankshaft-link rod.In the prior art, in the majority by manually adjusting, in order to process automatically
Different angle rod journal, in the prior art, generally by improving design to above-mentioned special fixture, such as Chinese patent [Shen
Please numbers 201611001660.7] disclose a kind of crankshaft-link rod diameter of axle processing tool system, including jig frame, jig frame bottom
The positioning surface for being fixedly mounted with bed guide rail is arranged in portion, and Morse's taper is successively installed in the jig frame front end from outside to inside
Axis, electromagnetic clutch, indexing structure and grip device；The jig frame rear end from outside to inside successively install Morse's taper axis,
Electromagnetic clutch and grip device.Indexing structure therein includes reversing arrangement and locking device, and reversing arrangement includes driving tooth
Wheel, driven gear, freewheel clutch, servo motor carry rotary encoder using servo motor and realize accurate indexing, thus real
Existing crankshaft-link rod overturning adjustment.
Although the invention is suitable for the automatic processing of the crankshaft with different circumferential angle connecting rods, but it will be apparent that using
Not only component structural is extremely complex for the Crankshaft Machining equipment of above-mentioned processing tool system, but also cost is high, each components it
Between cooperate complicated, failure rate is relatively high, and for middle-size and small-size Crankshaft Machining factory, the crankshaft model and type of processing are limited, if
Using above equipment, biggish economic and production burden will cause.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes one kind and adds for crankshaft-link rod
How the technical issues of turnover device of work, the utility model solves is in the cost and failure for reducing crankshaft-link rod process equipment
Crankshaft-link rod automatic turning is realized under the premise of rate.
The purpose of this utility model can be realized by the following technical scheme: a kind of overturning dress for crankshaft-link rod processing
It sets, including pedestal, which is characterized in that the pedestal is equipped with sliding seat and actuator one, and the actuator one can drive cunning
Dynamic seat opposite base is moved forward and backward, and the front end of the sliding seat is equipped with lobe plate, and the front side of the lobe plate has for pushing
The pushing tow face of crankshaft-link rod overturning, the front end of the sliding seat is additionally provided with the locating piece for crankshaft-link rod overturning positioning, described
Actuator two is provided on sliding seat, the lobe plate can be swung under the driving of actuator two towards locating piece position.
It is different from the prior art, the utility model is a kind of independent with special fixture by designing, and structure is simple, cost
Extremely low device come realize crankshaft-link rod processing when automatic turning, that is to say, that if on crankshaft-link rod process equipment,
After installing the present apparatus additional on basic cylindrical grinder, then with regard to without carrying out complication improvement to crankshaft-link rod special fixture structure
(such as installing the transmission mechanism matched with servo motor additional) can be realized as the processing for multiple crankshaft-link rods, in this way can be big
The big cost for reducing crankshaft-link rod process equipment, mitigates the financial burden of enterprise significantly；Specifically, the working principle of the present apparatus
As follows: by taking four cylinder crankshafts as an example, there are four crankshaft-link rods, and the axis of two sides crankshaft-link rod is consistent, and intermediate two crankshafts connect
The axis of bar is consistent, and the circumferential angle difference of intermediate two crankshaft-link rods and two sides crankshaft-link rod is 180 degree, when two sides crankshaft-link rod
For clamping when the special fixture on grinding machine completes Excircle machining, at this point, loosening special fixture, the present apparatus starts work at this time respectively
Make, the first step, actuator one drives sliding seat opposite base to move forward, at this point, the pushing tow face on lobe plate acts on crankshaft
On connecting rod and crankshaft-link rod is pushed to rotate relative to special fixture, until crankshaft-link rod turns to set angle；Second step, actuator
Two and actuator one work at the same time, i.e., actuator two is combined with the movement of sliding seat while actuator one drives sliding seat mobile
Drive lobe plate to swing with respect to sliding seat, until drive the crankshaft-link rod to turn to locating piece position, i.e., crankshaft-link rod this
When overturning in place, that is to say, that by acting above, the axis of intermediate crankshaft-link rod is just turned to and special fixture clamping position
Consistent position is set, the automatic turning of crankshaft-link rod is realized, then controls special fixture and loads and can complete intermediate crankshaft-link rod
Excircle machining；Since present apparatus structure is simple, low cost, so that the cost of the Crankshaft Machining equipment after installing the present apparatus additional
It can substantially reduce；Also, by the setting of the above locating piece, so that crankshaft-link rod is by the final position after lobe plate promotion
It can determine, crankshaft-link rod overturning can be better ensured that so in place, so that the automatic of crankshaft-link rod be better achieved
Overturning；Meanwhile locating piece also can be avoided lobe plate and excessively swing because of maloperation, advantageously reduce the failure rate of the present apparatus；
Meanwhile the present apparatus pushes away the overturning adjustment that a pendulum two movements are achieved that crankshaft-link rod, matching between each components by one
Conjunction relationship is few, and structure is simple, is not susceptible to failure, so that the failure rate for installing the crankshaft-link rod process equipment of the present apparatus additional is big
It is big to reduce.
In the above-mentioned turnover device for Crankshaft Machining, the lobe plate is hinged on the front end of sliding seat, the top
Pushing surface is inclined-plane or cambered surface.By designing above, lobe plate and crankshaft-link rod is enabled swimmingly to push crankshaft when contacting
Link rotatable, so that the probability that the present apparatus breaks down is advantageously reduced, so that installing the crankshaft-link rod processing of the present apparatus additional
The failure rate of equipment substantially reduces.
Preferably, the locating piece is hinged and is located in the above-mentioned turnover device for crankshaft-link rod processing
The front end of sliding seat.By designing above, locating piece can according to need the position that oneself is adjusted flexibly, so that crankshaft is most
The position of overturning in place is adjustable eventually, i.e. the angular range of crankshaft overturning is adjustable, and the present apparatus is enabled to be applicable in variety classes crankshaft
Automatic turning；In addition, bolt positioning can be used for the positioning of above-mentioned locating piece alternatively, the cooperation of positioning pin and location hole is realized and determined
Position.
Preferably, the front side of the locating piece has flat in the above-mentioned turnover device for crankshaft-link rod processing
Straight positioning surface.By the design of the above positioning surface, so that no matter crankshaft-link rod is contacted with which position of positioning surface, can
Precise positioning is provided for crankshaft-link rod, it is accurate in place can to guarantee crankshaft-link rod overturning in this way, to be advantageously implemented crankshaft company
The automatic turning of bar.
In the above-mentioned turnover device for crankshaft-link rod processing, the sliding seat is slidably connected with pedestal, the drive
Moving part one is fixed telescopic oil cylinder on the base, and the telescopic rod and sliding seat of the telescopic oil cylinder are connected.Actuator one uses
Lower-cost drive cylinder advantageously reduces the cost of the present apparatus；Meanwhile sliding seat is slidably connected with pedestal, fit structure
Simply, it is not susceptible to failure.Alternatively, in the above-mentioned turnover device for crankshaft-link rod processing, the cunning
Dynamic seat is slidably connected with pedestal, and the actuator one is fixed rotating electric machine on the base, fixes on the sliding seat with teeth
Item is fixed with and above-mentioned rack gear meshed gears on the motor shaft of the rotating electric machine.It is re-used as another scheme, above-mentioned
In turnover device for crankshaft-link rod processing, the sliding seat is slidably connected with pedestal, and the actuator one is lead screw motor,
The screw connecting with the wire rod thread of lead screw motor is provided on the sliding seat.
In the above-mentioned turnover device for crankshaft-link rod processing, the actuator two is the drive being hinged on sliding seat
Dynamic oil cylinder, the piston rod and lobe plate of the drive cylinder are hinged.Actuator two uses lower-cost drive cylinder, is conducive to
Reduce the cost of the present apparatus；Meanwhile the swing of lobe plate is realized using above-mentioned cooperation, fit structure is simple, is not susceptible to failure.
Alternatively, in the above-mentioned turnover device for crankshaft-link rod processing, the actuator two is rotary electric machine, institute
The front end that rotary electric machine is fixed on sliding seat is stated, the lobe plate is driven by rotary electric machine.
As preferential, in the above-mentioned turnover device for crankshaft-link rod processing, there is crank portion on the lobe plate,
Connecting rod is equipped between the piston rod of the drive cylinder, one end of the connecting rod and crank portion are hinged, the connecting rod
The other end and the piston rod of drive cylinder are fixed；Or one end of the connecting rod is fixed with crank portion, the connecting rod it is another
The piston rod of one end and drive cylinder is hinged.By designing above, although increasing connection rod structure, needed for lobe plate
When amplitude of fluctuation difference, by replacement connecting rod or the articulated position of connecting rod, so that no replacement is required for lobe plate itself,
Compared to lobe plate, connecting rod cost is lower, advantageously reduces the cost of the present apparatus in this way.
As preferential, in the above-mentioned turnover device for crankshaft-link rod processing, also having on the lobe plate is in arc
The rotation section of shape has arc-shaped notch in the connecting rod, and the rotation section can be embedded in the arc-shaped notch.Work as rotation section
When relative to sliding seat rotation, connecting rod meeting opposing cam plate rotation by designing above, can be embedded in sometime rotation section
In the arc-shaped notch, at this point, lobe plate and connecting rod are rotated relative to sliding seat together, that is to say, that by designing above, two
Person will not both generate interference, and the two is combined rear structure and more consolidates, and advantageously reduces the failure rate of the present apparatus in this way.
Compared with prior art, this has the advantage that for the turnover device of crankshaft-link rod processing
1, present apparatus independent design, structure is simple, low cost, can be realized automatic turning of the crankshaft-link rod in processing,
As long as on crankshaft-link rod process equipment, after installing the present apparatus additional, then with regard to without being carried out to crankshaft-link rod special fixture structure
The processing that improves and can be realized as multiple crankshaft-link rods is complicated, crankshaft-link rod process equipment can be substantially reduced in this way
Cost mitigates the financial burden of enterprise significantly；
2, the present apparatus pushes away a pendulum two movements by one and is achieved that the overturning of crankshaft-link rod adjusts, between each components
Matching relationship it is few, structure is simple, is not susceptible to failure, so that installs the failure of the crankshaft-link rod process equipment of the present apparatus additional
Rate substantially reduces.
Detailed description of the invention
Fig. 1 is the schematic perspective view of device in the present embodiment one.
Fig. 2 is floor map when lobe plate moves forward in the present embodiment one.
Fig. 3 is floor map when lobe plate is swung in the present embodiment one.
Fig. 4 is the initial position schematic diagram of the present apparatus and a kind of crankshaft.
Fig. 5 is the in running order schematic diagram for the moment of the present apparatus.
Fig. 6 be the present apparatus it is in running order two when schematic diagram.
Fig. 7 be the present apparatus it is in running order three when schematic diagram.
In figure, 1, pedestal；2, sliding seat；3, actuator one；4, lobe plate；4a, pushing tow face；41, crank portion；42, it rotates
Portion；5, actuator two；6, locating piece；61, positioning surface；7, connecting rod；71, arc-shaped notch；8, crankshaft-link rod.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one:
Specifically, as shown in Figure 1, this turnover device for being used for crankshaft-link rod processing includes pedestal 1, pedestal 1 is equipped with
Sliding seat 2 and actuator 1, actuator 1 can drive 2 opposite base 1 of sliding seat to be moved forward and backward.Wherein, before sliding seat 2
End is hinged with the lobe plate 4 for pushing crankshaft-link rod 8 to overturn, and the front end of sliding seat 2 is also hinged and is situated for crankshaft company
The locating piece 6 that bar 8 positions.The front side of lobe plate 4 has pushing tow face 4a, and pushing tow face 4a is inclined-plane or cambered surface, before locating piece 6
Side has straight positioning surface 61.Actuator 25 is additionally provided on sliding seat 2, lobe plate 4 can be in the driving of actuator 25
It is lower to be swung towards 6 position of locating piece.
More specifically, sliding seat 2 is slidably connected with pedestal 1 in the present embodiment, actuator 1 is to be fixed on pedestal 1
Telescopic oil cylinder, the telescopic rod and sliding seat 2 of telescopic oil cylinder are connected.Actuator 25 is the drive cylinder being hinged on sliding seat 2,
The piston rod and lobe plate 4 of drive cylinder are hinged.There is crank portion 41 on lobe plate 4, be equipped between the piston rod of drive cylinder
Connecting rod 7, one end of connecting rod 7 and crank portion 41 are hinged, and the other end of connecting rod 7 and the piston rod of drive cylinder are fixed；Or
One end of person's connecting rod 7 and crank portion 41 are fixed, and the other end of connecting rod 7 and the piston rod of drive cylinder are hinged.On lobe plate 4
Also there is arc-shaped rotation section 42, there is arc-shaped notch 71 in connecting rod 7, it is recessed that the rotation section 42 can be embedded in the arc
In mouth 71.
The present apparatus pushes the course of work of crankshaft-link rod overturning as follows: for four cylinder crankshafts shown in Fig. 4, there is four
A crankshaft-link rod 8, and the axis of two sides crankshaft-link rod 8 is consistent, the axis of intermediate two crankshaft-link rods 8 is consistent, intermediate two songs
The circumferential angle difference of axis connecting rod 8 and two sides crankshaft-link rod 8 is 180 degree.When the difference clamping of two sides crankshaft-link rod 8 is special on grinding machine
When completing Excircle machining with fixture, at this point, loosening special fixture, the present apparatus is started to work at this time.As shown in figure 5, actuator 1
2 opposite base 1 of sliding seat is driven to move forward, until the lobe plate 4 that 2 front end of sliding seat is arranged in pushes the crankshaft-link rod of side
8 opposite special fixtures turn to set angle；Then as shown in fig. 6, actuator 1 drives while driving sliding seat 2 mobile
Part 25 is combined with the movement of sliding seat 2 to drive lobe plate 4 to swing with respect to sliding seat 2, until crankshaft-link rod 8 is driven to be turned to
Position, as shown in fig. 7, at this point, the axis of intermediate crankshaft-link rod 8 be just turned to the consistent position of special fixture clamping position,
Special fixture is controlled again loads the Excircle machining that can complete intermediate crankshaft-link rod 8.
Embodiment two:
Technical solution in the present embodiment and the technical solution in embodiment one are essentially identical, the difference is that, driving
Part 1 is the rotating electric machine being fixed on pedestal 1, and rack gear is fixed on sliding seat 2, be fixed on the motor shaft of rotating electric machine with
Above-mentioned rack gear meshed gears.
Embodiment three:
Technical solution in the present embodiment and the technical solution in embodiment one are essentially identical, the difference is that, driving
Part 1 is lead screw motor, is provided with the screw connecting with the wire rod thread of lead screw motor on sliding seat 2.
Example IV:
Technical solution in the present embodiment and the technical solution in embodiment one are essentially identical, the difference is that, driving
Part 25 is rotary electric machine, and rotary electric machine is fixed on the front end of sliding seat 2, and lobe plate 4 is driven by rotary electric machine.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although pedestal 1, sliding seat 2, actuator 1, lobe plate 4, pushing tow face 4a, crank portion is used more herein
41, the terms such as rotation section 42, actuator 25, locating piece 6, positioning surface 61, connecting rod 7, arc-shaped notch 71, crankshaft-link rod 8, but
It does not exclude the possibility of using other terms.It is practical new the use of these items is only for being more convenient to describe and explain this
The essence of type；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (10)
1. a kind of turnover device for crankshaft-link rod processing, including pedestal (1), which is characterized in that the pedestal (1) is equipped with
Sliding seat (2) and actuator one (3), the actuator one (3) can drive sliding seat (2) opposite base (1) to be moved forward and backward, institute
The front end for stating sliding seat (2) is equipped with lobe plate (4), and the front side of the lobe plate (4) has for pushing crankshaft-link rod (8) to overturn
Pushing tow face (4a), the front end of the sliding seat (2) be additionally provided with for crankshaft-link rod (8) overturning positioning locating piece (6), it is described
Actuator two (5) is provided on sliding seat (2), the lobe plate (4) can be under the driving of actuator two (5) towards locating piece
(6) position is swung.
2. the turnover device according to claim 1 for crankshaft-link rod processing, which is characterized in that the lobe plate (4)
It is hinged on the front end of sliding seat (2), the pushing tow face (4a) is inclined-plane or cambered surface.
3. the turnover device according to claim 1 for crankshaft-link rod processing, which is characterized in that the locating piece (6)
Front end that is hinged and being located in sliding seat (2).
4. the turnover device according to claim 3 for crankshaft-link rod processing, which is characterized in that the locating piece (6)
Front side have straight positioning surface (61).
5. the turnover device according to claim 1 or 2 or 3 or 4 for crankshaft-link rod processing, which is characterized in that described
Sliding seat (2) is slidably connected with pedestal (1), and the actuator one (3) is the telescopic oil cylinder being fixed on pedestal (1), described to stretch
The telescopic rod of contracting oil cylinder and sliding seat (2) are connected.
6. the turnover device according to claim 1 or 2 or 3 or 4 for crankshaft-link rod processing, which is characterized in that described
Actuator two (5) is the drive cylinder being hinged on sliding seat (2), and the piston rod of the drive cylinder and lobe plate (4) are hinged.
7. the turnover device according to claim 6 for crankshaft-link rod processing, which is characterized in that the lobe plate (4)
It is upper that there are crank portion (41), be equipped with connecting rod (7) between the piston rod of the drive cylinder, one end of the connecting rod (7) with
Crank portion (41) hingedly, fix by the other end of the connecting rod (7) and the piston rod of drive cylinder；Or the connecting rod (7)
One end and crank portion (41) it is fixed, the other end of the connecting rod (7) and the piston rod of drive cylinder are hinged.
8. the turnover device according to claim 7 for crankshaft-link rod processing, which is characterized in that the lobe plate (4)
On also there is arc-shaped rotation section (42), there are arc-shaped notch (71) on the connecting rod (7), the rotation section (42) can
It is embedded in the arc-shaped notch (71).
9. the turnover device according to claim 1 or 2 or 3 or 4 for crankshaft-link rod processing, which is characterized in that described
Sliding seat (2) is slidably connected with pedestal (1), and the actuator one (3) is the rotating electric machine being fixed on pedestal (1), the cunning
It is fixed with rack gear on dynamic seat (2), is fixed on the motor shaft of the rotating electric machine and above-mentioned rack gear meshed gears.
10. the turnover device according to claim 1 or 2 or 3 or 4 for crankshaft-link rod processing, which is characterized in that described
Actuator two (5) is rotary electric machine, and the rotary electric machine is fixed on the front end of sliding seat (2), and the lobe plate (4) passes through rotation
Motor driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821110663.9U CN208528734U (en) | 2018-07-13 | 2018-07-13 | A kind of turnover device for crankshaft-link rod processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821110663.9U CN208528734U (en) | 2018-07-13 | 2018-07-13 | A kind of turnover device for crankshaft-link rod processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208528734U true CN208528734U (en) | 2019-02-22 |
Family
ID=65387294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821110663.9U Withdrawn - After Issue CN208528734U (en) | 2018-07-13 | 2018-07-13 | A kind of turnover device for crankshaft-link rod processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208528734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637851A (en) * | 2018-07-13 | 2018-10-12 | 台州伟立智能设备有限公司 | A kind of turnover device for crankshaft-link rod processing |
| CN111922745A (en) * | 2020-06-10 | 2020-11-13 | 宁波职业技术学院 | Bar overturning assembly |
-
2018
- 2018-07-13 CN CN201821110663.9U patent/CN208528734U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637851A (en) * | 2018-07-13 | 2018-10-12 | 台州伟立智能设备有限公司 | A kind of turnover device for crankshaft-link rod processing |
| CN108637851B (en) * | 2018-07-13 | 2023-09-08 | 中宝精密科技(浙江)有限公司 | Turnover device for crankshaft connecting rod machining |
| CN111922745A (en) * | 2020-06-10 | 2020-11-13 | 宁波职业技术学院 | Bar overturning assembly |
| CN111922745B (en) * | 2020-06-10 | 2021-08-24 | 宁波职业技术学院 | Bar overturning assembly |
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Granted publication date: 20190222 Effective date of abandoning: 20230908 |