CN202461946U - Automatic-monitoring main tooth nut screwing device - Google Patents
Automatic-monitoring main tooth nut screwing device Download PDFInfo
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- CN202461946U CN202461946U CN2012200015408U CN201220001540U CN202461946U CN 202461946 U CN202461946 U CN 202461946U CN 2012200015408 U CN2012200015408 U CN 2012200015408U CN 201220001540 U CN201220001540 U CN 201220001540U CN 202461946 U CN202461946 U CN 202461946U
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- main teeth
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Abstract
The utility model relates to the technical field of mechanical assembling and discloses an automatic-monitoring main tooth nut screwing device. The automatic-monitoring main tooth nut screwing device comprises a fixing tool which is used for fixing the bottom of a main tooth nut system and offsets a counter moment generated in a main tooth nut screwing process; a rotatable main tooth nut rotating mechanism and a rotatable male flange rotating mechanism are arranged above the fixing tool and are used for screwing a main tooth nut by virtue of a differential speed; and the device further comprises a main tooth nut screwing moment monitoring mechanism for monitoring a main tooth nut screwing moment in the main tooth nut screwing process and a main tooth bearing pre-tightening moment monitoring mechanism for monitoring a main tooth bearing pre-tightening moment in the main tooth nut screwing process. According to the utility model, the nut can be screwed through the differential speed of a double-servo motor, and a spacer bush is compressed and deformed to realize the aim of pre-tightening a main tooth bearing; and the automatic-monitoring main tooth nut screwing device can be used for synchronously screwing the nut and monitoring the pre-tightening moment of the main tooth bearing, so that the production efficiency is greatly improved and the yield of disposable products is improved.
Description
Technical field
The utility model relates to the mechanical assembly technique field, particularly relates to the main teeth nut device for screwing up of a kind of automatic monitoring.
Background technology
Main teeth nut of the prior art is tightened (radiation fins structure) and is mainly still accomplished by manual work, and the instrument of utilization is: instruments such as pneumatic impact wrench, torque spanner.Briefly explain the mode (workpiece requires the screw-down torque of main teeth nut to be usually: the pre-fastening moment that 190-245NM, main pinion hold is 1-2NM) of tightening of the prior art referring to Fig. 1:
The first step: utilize frock to fix male flange 2, utilize pneumatic impact spanner to tighten main teeth nut 1, screw-down torque is controlled at 190NM.
Second step: utilize torque spanner monitoring main pinion to hold 28 pre-fastening moment.
The 3rd step: if the main pinion of the second step monitoring holds 28 the pre-fastening moment pre-fastening moment less than technological requirement; Then again with torque wrench slowly tighten main teeth nut 1; Monitor main pinion again and hold 28 pre-fastening moment; Go round and begin again, will guarantee that finally the screw-down torque and the main pinion of the main teeth nut 1 of technological requirement holds 28 pre-fastening moment.
The main following points of its drawback of existing working method:
The first, productive temp and slow, through statistics, if accomplish this work, the experienced operator needed about 5-8 minute, and can not guarantee once success.Need instruction repeatedly, production efficiency is too low, contradicts with the good opportunity of the present car industry develop rapidly of China;
The second, the dependence to personnel is too strong, and the senior skilled worker may a littlely draw a little experiences through groping for a long time, and instruction may be a little better.If this person leaves office, this station new person progress that will influence whole assembling process on duty finally influences product quality.The person, also must influence the product percent of pass of this station according to producers' anxious state of mind;
If the 3rd this station can not disposablely be tightened successfully, must ressemble, radiation fins just will be scrapped like this, and the waste resource does not conform to the energy-saving and emission-reduction that we are advocated yet.
The utility model content
The technical problem that (one) will solve
The technical problem that the utility model will solve provides the main teeth nut device for screwing up of a kind of automatic monitoring, can realize automatic accurate the tightening of main teeth nut ensured the quality of products, and increases work efficiency.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of automatic monitoring main teeth nut device for screwing up, and said device comprises:
Be used for fixing said main teeth nut system bottom and offset the fixing tool that produces countertorque in the said main teeth nut rundown process; The top of said fixing tool is provided with rotating main teeth nut rotating mechanism and rotating male flange rotating mechanism, and said main teeth nut rotating mechanism and male flange rotating mechanism are through differential screwed said main teeth nut; Said device also comprises the main teeth nut screw-down torque mechanism for monitoring that is used for monitoring main teeth nut screw-down torque described in the main teeth nut rundown process and is used to monitor the main pinion that main teeth nut rundown process main pinion holds pre-fastening moment and holds the pre-fastening moment mechanism for monitoring.
Preferred as technique scheme, said main teeth nut rotating mechanism comprises: over against the central shaft of said main teeth nut top and drive first servomotor of said central shaft; Said central shaft matches with said main teeth nut with the shape of the end of said main teeth nut; Said main teeth nut screw-down torque mechanism for monitoring has central shaft screw-down torque monitoring sensor, and said central shaft screw-down torque monitoring sensor contacts with said central shaft.
Preferred as technique scheme; Said male flange rotating mechanism comprises: be socketed in the sleeve in the said central shaft outside and drive second servomotor of its rotation; Said sleeve and the end of said main teeth nut are used to be connected the male flange in the said main teeth nut outside, the countertorque when being used to offset said second servomotor and tightening.
Preferred as technique scheme; Said main teeth nut rotating mechanism and said male flange rotating mechanism are arranged at the below that the top that is positioned at said fixing tool is provided with slide unit; Said slide unit is connected with its guide rail that vertically is provided with of feeding air cylinder driven and above said fixing tool, moves up and down, and said slide unit in the vertical direction also is provided with first locating piece.
Preferred as technique scheme, said fixing tool comprise the jig that is used for fixing said main teeth nut system and and the coaxial top tip structure of said main teeth nut, said top tip structure is positioned at the below of said main teeth nut system; But said jig and said top tip structure all move on the vertical direction, guarantee that workpiece and jig disengage; At the same horizontal level of workpiece; But be provided with the bearing pre-fastening that moves on the horizontal direction and detect slide unit; On the said bearing pre-fastening detection slide unit main pinion is installed and holds the pre-fastening moment mechanism for monitoring; It has main pinion and holds the pre-fastening moment monitoring sensor, and said main pinion holds the pre-fastening moment monitoring sensor and contacts with the outside of said main teeth nut system housing.
Preferred as technique scheme; The main teeth nut device for screwing up of said automatic monitoring also comprises guidance panel, signal lamp and warning device; Said guidance panel is used for the setting of device and shows that in real time the screw-down torque value and the said main pinion of said main teeth nut hold the pre-fastening moment value; Said signal lamp is used for showing the whether qualified information of technology of tightening, and said warning device is used for prompting, and to tighten technology defective.
(3) beneficial effect
The main teeth nut device for screwing up of the automatic monitoring that technique scheme provided, it comprises: be used for fixing said main teeth nut system bottom and offset the fixing tool that produces countertorque in the said main teeth nut rundown process; The top of said fixing tool is provided with rotating main teeth nut rotating mechanism and rotating male flange rotating mechanism, and said main teeth nut rotating mechanism and male flange rotating mechanism are through differential screwed said main teeth nut; Said device also comprises the main teeth nut screw-down torque mechanism for monitoring that is used for monitoring main teeth nut screw-down torque described in the main teeth nut rundown process and is used to monitor the link that main pinion that main teeth nut rundown process main pinion holds pre-fastening moment holds pre-fastening moment mechanism for monitoring master teeth nut rotating mechanism and said main teeth nut and is provided with main teeth nut screw-down torque mechanism for monitoring; The outer shell body region of said male flange is connected with male flange rotating torque mechanism for monitoring, and said main teeth nut screw-down torque mechanism for monitoring and said male flange rotating torque mechanism for monitoring are respectively applied for the screw-down torque value of main teeth nut described in the main teeth nut rundown process of monitoring and the rotating torque value of male flange.This device is through two differential screwed nuts of servomotor, and the distortion of compression spacer reaches the pretension main pinion holds, and realizes the pre-fastening moment that synchronous fastening nut and monitoring main pinion hold, and has improved production efficiency greatly, improves the disposable products qualification rate.
Description of drawings
Fig. 1 is main teeth nut system (radiation fins structure) structural representation;
Fig. 2 is the structural representation in front of the main teeth nut device for screwing up of automatic monitoring of the utility model embodiment;
Fig. 3 is the local enlarged diagram of I portion among Fig. 2;
Fig. 4 is the structural representation of side of the main teeth nut device for screwing up of automatic monitoring of the utility model embodiment;
Fig. 5 is the local enlarged diagram of II portion among Fig. 4;
Wherein, 1: main teeth nut; 2: male flange; 3: bearing; 4: carriage and pallet; 5: the feeding cylinder; 6: fixing tool; 7: main pinion holds the pre-fastening moment mechanism for monitoring; 8: main teeth nut rotating mechanism and rotating male flange rotating mechanism; 9: the first servomotors; 10: the second servomotors; 11: lathe bed; 12: following top elevating mechanism; 13: connect dish; 14: electrical system; 15: pneumatic system; 16: the second locating pieces; 17: guidance panel; 18: slide unit; 19: the fixing tool elevating mechanism; 20: top tip structure; 21: central shaft; 22: central shaft and main teeth nut abutting end; 23: sleeve; 24: sleeve and male flange abutting end; 25: the first locating pieces; 26: guide rail; 27: spacer; 28: main pinion holds.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
In conjunction with shown in Fig. 2 to 5, Fig. 2 is the Facad structure sketch map of the main teeth nut device for screwing up of automatic monitoring of present embodiment, and Fig. 3 is the local enlarged diagram of I portion among Fig. 2.This device mainly comprises: be used for fixing said main teeth nut system bottom and offset the fixing tool 6 that produces countertorque in the said main teeth nut rundown process; The top of fixing tool 6 is provided with rotating main teeth nut rotating mechanism and rotating male flange rotating mechanism 8, and main teeth nut rotating mechanism and male flange rotating mechanism 8 are through differential screwed main teeth nut 1; The link of main teeth nut rotating mechanism and main teeth nut is provided with main teeth nut screw-down torque mechanism for monitoring; The outer shell body region of male flange is connected with main pinion and holds pre-fastening moment mechanism for monitoring 7 (as shown in Figure 4), and main teeth nut screw-down torque mechanism for monitoring and main pinion hold screw-down torque value and main pinion that pre-fastening moment mechanism for monitoring 7 is respectively applied for main teeth nut 1 in main teeth nut 1 rundown process of monitoring and hold 28 pre-fastening moment value.In differential screwed main teeth nut 1; Hold under the common monitoring of pre-fastening moment mechanism for monitoring 7 through main teeth nut screw-down torque mechanism for monitoring and main pinion; Realize automatically main teeth nut 1 and main pinion are held the monitoring of 28 moment, make rundown process main teeth nut rotating mechanism of adjustment and male flange rotating mechanism 8 automatically.Device is out of service when moment reaches preset range, and the report qualified products; When the moment values of being monitored exceeded preset range, device alarm report product was defective.The clutch shaft bearing 3 that is connected internally to of male flange 2 is connected to main pinion through spacer 27 and holds 28.
Comprise in conjunction with Fig. 4 and Fig. 5 master's teeth nut rotating mechanism: over against the central shaft 21 of main teeth nut top and first servomotor 9 of driving central shaft; Central shaft 21 matches with main teeth nut 1 with the shape of the end (among Fig. 5: central shaft and main teeth nut abutting end 22) of main teeth nut 1; Main teeth nut screw-down torque mechanism for monitoring has central shaft screw-down torque monitoring sensor, and central shaft screw-down torque monitoring sensor is positioned on the central shaft 21.Central shaft 21 under the driving of first servomotor 9, drives it and main teeth nut 1 rotates, and the screw-down torque that central shaft screw-down torque monitoring sensor is monitored main teeth nut 1 is set simultaneously above that.
The male flange rotating mechanism comprises: be socketed in the sleeve 23 in central shaft 21 outsides and drive second servomotor 10 of its rotation; Sleeve 23 and the end (among Fig. 5: sleeve and male flange abutting end 24) of main teeth nut are used to be connected the male flange 2 in main teeth nut 1 outside, the countertorque when being used to offset said second servomotor 10 and tightening.Sleeve 23 under the driving of second servomotor 10, drives it and male flange 2 rotates; Main pinion holds the pre-fastening moment monitoring sensor and contacts with the outside of said main teeth nut system housing, and this main pinion holds pre-fastening moment mechanism for monitoring 7 and monitors main pinion and hold 28 pre-fastening moment.Hold the contact of pre-fastening moment monitoring sensor to main teeth nut system housing, the pre-fastening moment that measurement main pinion that can be indirect holds through main pinion.So just realized when rotating main teeth nut 1 main pinion is held the real-time monitoring of 28 pre-fastening moment.Two differential screwed main teeth nuts 1 of servomotor in this device transmit and compression spacer 27 makes it to be out of shape and reaches the pretension main pinion and hold 28 purpose through bearing 3, and this device can be realized tightening synchronously main teeth nut 1 and detect main pinion and hold 28 pretightning forces.
Also be connected with between sleeve 2 and the male flange 1 and connect dish 13, connect dish 13 and be used to protect male flange 2.Because male flange 2 is accurate devices, so when tightening main teeth nut 1, need avoid the injury to male flange 2.
Main teeth nut rotating mechanism and male flange rotating mechanism 8 are arranged at and are positioned at the below that fixing tool 6 tops are provided with slide unit 18; Slide unit 18 is connected with feeding cylinder 5 its guide rails that vertically are provided with 26 of driving and above fixing tool 6, moves up and down, and slide unit 18 in the vertical directions also are provided with first locating piece 25.Slide unit 18 can be done the feed motion of vertical direction under the driving of feeding cylinder 5.First locating piece 25 is used for realizing location automatically during to lower slider at slide unit 18, need not operator's manual operations, the accuracy when having guaranteed to tighten main teeth nut 1.Feeding cylinder 5 is by pneumatic system 15 power to be provided.
Fixing tool 6 comprises jig and the top tip structure 20 coaxial with main teeth nut that is used for fixing main teeth nut system, and top tip structure 20 is positioned at the below of main teeth nut system; But move on jig and the top tip structure 20 equal vertical directions, guarantee that workpiece and jig disengage; At the same horizontal level of workpiece; But be provided with the bearing pre-fastening that moves on the horizontal direction and detect slide unit; On the said bearing pre-fastening detection slide unit main pinion is installed and holds the pre-fastening moment mechanism for monitoring; It has main pinion and holds the pre-fastening moment monitoring sensor, and said main pinion holds the pre-fastening moment monitoring sensor and contacts with the outside of said main teeth nut system housing.。Tip mechanism 20 is used to support the bottom of radiation fins structure, and its upper end can be rotated along with main teeth nut rotating mechanism and rotating male flange rotating mechanism 7, thus screwing to main teeth nut 1.Tip mechanism 20 also is provided with top elevating mechanism 12, and the adjustment that moves up and down that is used for tip mechanism 20 can be that for example screw-nut structure or pneumatic means promote along track.Simultaneously as shown in Figure 2, the bottom of fixing tool also has fixing tool elevating mechanism 19, and it is used for fixing the adjustment of frock in the vertical direction position, so as adjustment with its above the cooperating of rotating mechanism.The top of fixing tool elevating mechanism 19 also is provided with second locating piece 16, is used for the location to fixing tool elevating mechanism 19.This fixing tool elevating mechanism 19 simultaneously also the handled easily person to its operation like maintenance, to operations such as being installed of radiation fins structure.
Like Fig. 2 and Fig. 4, to monitor main teeth nut device for screwing up automatically and also comprise guidance panel 17, signal lamp and warning device, guidance panel 17 is used for the setting of device and the screw-down torque value and the main pinion that show in real time main teeth nut holds 28 pre-fastening moment value.Signal lamp is used for showing tightens whether qualified information of technology, shows that like danger signal product technology is defective, and greensignal light shows that product technology is qualified, and warning device is used for prompting operation person, and to tighten technology defective.Monitoring and the corresponding operating of operator to device is convenient in above-mentioned setting.
In operating process; The operator is fixedly installed to the radiation fins structure that transports on carriage and the pallet 4 on the fixing tool 6; Opening device then, the device that present embodiment provides is tightened main teeth nut 1, simultaneously the screw-down torque of the main teeth nut 1 of monitoring automatically; And main pinion holds 28 pre-fastening moment, final realization tightening main teeth nut 1.
Automatically operation principle of the main teeth nut device for screwing up of monitoring is specially: in the rundown process of main teeth nut 1, the screw-down torque of main teeth nut 1 and main pinion are held 28 pre-fastening moment and monitor in real time; When the screw-down torque of main teeth nut 1 and main pinion hold 28 pre-fastening moment and all reach in its predetermined range, accomplish tightening to main teeth nut.Screw-down torque as requiring main teeth nut 1 in the present embodiment is: it is 1-2NM that 190-245NM, main pinion hold 28 pre-fastening moment.When both moment is all in predetermined range, qualified products.
The rundown process of main teeth nut 1 is that the rotating mechanism that is positioned at homonymy acts on main teeth nut 1 respectively and male flange 2 makes its rotation, through differential screwed main teeth nut 1.The rotating mechanism that is positioned at homonymy in the present embodiment is main teeth nut rotating mechanism and the rotating male flange rotating mechanism 8 shown in Fig. 2 and Fig. 4.The rotating mechanism that is positioned at homonymy can reduce the difficulty that is provided with of wiring and control system so that device for screwing up is more succinct.
When the screw-down torque of main teeth nut 1 reach its predetermined range not following and main pinion holds the upper limit that 28 pre-fastening moment exceeds its predetermined range in limited time, it is defective then to tighten technology.
When the screw-down torque of main teeth nut 1 reach its predetermined range following in limited time, if main pinion holds the upper limit that 28 pre-fastening moment exceeds its predetermined range, it is defective then to tighten technology; If main pinion holds 28 pre-fastening moment when being positioned at its predetermined range, it is qualified then to tighten technology; If main pinion holds the lower limit that 28 pre-fastening moment does not also reach its predetermined range; Then continue to tighten main teeth nut 1: hold 28 pre-fastening moment when main pinion and reach in its predetermined range; And the screw-down torque of main teeth nut 1 is also in its predetermined range, and it is qualified then to tighten technology; When main pinion holds the also lower limit of its predetermined range of no show of 27 pre-fastening moment, and the screw-down torque of main teeth nut 1 has exceeded the upper limit of its predetermined range, and it is defective then to tighten technology.
Can find out that by above embodiment the utility model embodiment is through adopting: be used for fixing said main teeth nut system bottom and offset the fixing tool 6 that produces countertorque in the said main teeth nut rundown process; The top of said fixing tool 6 is provided with rotating main teeth nut rotating mechanism and rotating male flange rotating mechanism, and said main teeth nut rotating mechanism and male flange rotating mechanism are through differential screwed said main teeth nut; Said device also comprises the main teeth nut screw-down torque mechanism for monitoring that is used for monitoring main teeth nut screw-down torque described in the main teeth nut rundown process and is used to monitor the link that main pinion that main teeth nut rundown process main pinion holds pre-fastening moment holds pre-fastening moment mechanism for monitoring master teeth nut rotating mechanism and said main teeth nut and is provided with main teeth nut screw-down torque mechanism for monitoring; The outer shell body region of said male flange is connected with male flange rotating torque mechanism for monitoring, and said main teeth nut screw-down torque mechanism for monitoring and said male flange rotating torque mechanism for monitoring are respectively applied for the screw-down torque value of main teeth nut described in the main teeth nut rundown process of monitoring and the rotating torque value of male flange.This device is through two differential screwed nuts of servomotor, and the distortion of compression spacer reaches the pretension main pinion holds, and main teeth nut is tightened in realization synchronously and the monitoring main pinion holds pretightning force, has improved production efficiency greatly, improves the disposable products qualification rate.The advantage of the utility model is: 1, accomplish through equipment and tighten and monitor, improved production efficiency greatly, through measuring and calculating in detail, the productive temp of this equipment is two minutes; 2 thus equipment all to look for a job all be to accomplish through computer, this has just stopped artificial factor, under the qualified situation of parts, the disposable qualification rate of product is more than 95%; 3, significantly reduced rejection number once more.And greatly improved product quality.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of the utility model.
Claims (6)
1. monitor main teeth nut device for screwing up automatically for one kind, it is characterized in that said device comprises:
Be used for fixing said main teeth nut system bottom and offset the fixing tool that produces countertorque in the said main teeth nut rundown process; The top of said fixing tool is provided with rotating main teeth nut rotating mechanism and rotating male flange rotating mechanism, and said main teeth nut rotating mechanism and male flange rotating mechanism are through differential screwed said main teeth nut; Said device also comprises the main teeth nut screw-down torque mechanism for monitoring that is used for monitoring main teeth nut screw-down torque described in the main teeth nut rundown process and is used to monitor the main pinion that main teeth nut rundown process main pinion holds pre-fastening moment and holds the pre-fastening moment mechanism for monitoring.
2. the main teeth nut device for screwing up of automatic monitoring as claimed in claim 1 is characterized in that, said main teeth nut rotating mechanism comprises: over against the central shaft of said main teeth nut top and drive first servomotor of said central shaft; Said central shaft matches with said main teeth nut with the shape of the end of said main teeth nut; Said main teeth nut screw-down torque mechanism for monitoring has central shaft screw-down torque monitoring sensor, and said central shaft screw-down torque monitoring sensor contacts with said central shaft.
3. the main teeth nut device for screwing up of automatic monitoring as claimed in claim 2; It is characterized in that; Said male flange rotating mechanism comprises: be socketed in the sleeve in the said central shaft outside and drive second servomotor of its rotation; Said sleeve and the end of said main teeth nut are used to be connected the male flange in the said main teeth nut outside, the countertorque when being used to offset said second servomotor and tightening.
4. the main teeth nut device for screwing up of automatic monitoring as claimed in claim 1; It is characterized in that; Said main teeth nut rotating mechanism and said male flange rotating mechanism are arranged at the below that the top that is positioned at said fixing tool is provided with slide unit; Said slide unit is connected with its guide rail that vertically is provided with of feeding air cylinder driven and above said fixing tool, moves up and down, and said slide unit in the vertical direction also is provided with first locating piece.
5. the main teeth nut device for screwing up of automatic monitoring as claimed in claim 1; It is characterized in that; Said fixing tool comprise the jig that is used for fixing said main teeth nut system and and the coaxial top tip structure of said main teeth nut, said top tip structure is positioned at the below of said main teeth nut system; But said jig and said top tip structure all move on the vertical direction, guarantee that workpiece and jig disengage; At the same horizontal level of workpiece; But be provided with the bearing pre-fastening that moves on the horizontal direction and detect slide unit; On the said bearing pre-fastening detection slide unit main pinion is installed and holds the pre-fastening moment mechanism for monitoring; It has main pinion and holds the pre-fastening moment monitoring sensor, and said main pinion holds the pre-fastening moment monitoring sensor and contacts with the outside of said main teeth nut system housing.
6. like the main teeth nut device for screwing up of each described automatic monitoring in the claim 1 to 5; It is characterized in that; The main teeth nut device for screwing up of said automatic monitoring also comprises guidance panel, signal lamp and warning device; Said guidance panel is used for the setting of device and shows that in real time the screw-down torque value and the said main pinion of said main teeth nut hold the pre-fastening moment value, and said signal lamp is used for showing the whether qualified information of technology of tightening, and said warning device is used for prompting, and to tighten technology defective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200015408U CN202461946U (en) | 2012-01-04 | 2012-01-04 | Automatic-monitoring main tooth nut screwing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200015408U CN202461946U (en) | 2012-01-04 | 2012-01-04 | Automatic-monitoring main tooth nut screwing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202461946U true CN202461946U (en) | 2012-10-03 |
Family
ID=46910143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200015408U Withdrawn - After Issue CN202461946U (en) | 2012-01-04 | 2012-01-04 | Automatic-monitoring main tooth nut screwing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202461946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528437A (en) * | 2012-01-04 | 2012-07-04 | 北京泰诚信测控技术股份有限公司 | Device and method for automatically monitoring drive gear nut screwing device |
| CN109595328A (en) * | 2019-01-30 | 2019-04-09 | 汽解放汽车有限公司 | It is a kind of for adjusting the waveform spacer of bearing pre-fastening |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
-
2012
- 2012-01-04 CN CN2012200015408U patent/CN202461946U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528437A (en) * | 2012-01-04 | 2012-07-04 | 北京泰诚信测控技术股份有限公司 | Device and method for automatically monitoring drive gear nut screwing device |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
| CN109595328A (en) * | 2019-01-30 | 2019-04-09 | 汽解放汽车有限公司 | It is a kind of for adjusting the waveform spacer of bearing pre-fastening |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140813 |
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| RGAV | Abandon patent right to avoid regrant |