CN202114146U - Half shaft bushing forming frock - Google Patents
Half shaft bushing forming frock Download PDFInfo
- Publication number
- CN202114146U CN202114146U CN2011201656058U CN201120165605U CN202114146U CN 202114146 U CN202114146 U CN 202114146U CN 2011201656058 U CN2011201656058 U CN 2011201656058U CN 201120165605 U CN201120165605 U CN 201120165605U CN 202114146 U CN202114146 U CN 202114146U
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- reducing
- enlarging
- die
- axle tube
- post
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Abstract
The utility model relates to a flaring and necking forming frock and provides a half shaft bushing forming frock which comprises a flaring die and a necking die, wherein the flaring die comprises a reaming column, the necking die comprises a necking sleeve, and the necking sleeve is provided with an axial guarantee mechanism which is matched with a middle section of a half shaft bushing and a fixed seat of the axial guarantee mechanism; and with the axis of the axial guarantee mechanism as the datum axial line of the frock, the axes of the reaming column and the necking die are both coincided with the datum axial line, and the reaming column and the necking die are arranged opposite. During processing, matching of a pipe to be processed and the axial guarantee mechanism are firstly finished, and coincidence of the axial line of the pipe to be processed and the datum axial line is guaranteed through the axial guarantee mechanism, therefore, the reaming column, the necking sleeve and the pipe to be processed are guaranteed to have a same shaft in the processing process, the final coaxiality of section segments such as the necking section, the flaring section and the like of the half shaft bushing is also guaranteed, flaring and necking are further finished, the use is convenient, the processing efficiency is high, and the half shaft bushing forming frock is suitable for half shaft bushing production.
Description
Technical field
The utility model relates to scalable mouthful of moulding frock, especially a kind of axle tube moulding frock.
Background technology
Axle tube is a polymorphic structure; Usually be divided into three sections; One section is that the reducing section, a section of wheel hub one end is the uiform section section between the flared section of differential mechanism one end and above-mentioned two sections, and existing technology normally adopts straight tube, processes through four post hydraulic presses; Procedure of processing comprises enlarging, discharging, three steps of reducing, and is concrete:
One, carries out the enlarging of flared section through the enlarging frock; The enlarging frock comprises enlarging post, base plate, limited post, adjustment cover; Wherein the enlarging post be installed on base plate central authorities, limited post totally four be installed on four jiaos of base plates respectively; Each limited post and enlarging axis of a cylinder are to parallel, and four adjustment covers are installed on each limited post top respectively.Add man-hour, Guan Yiduan to be processed is enclosed within on the enlarging post, hydraulic press is depressed, and treats processing tube through the pipe other end to be processed and pressurizes, and progressively accomplishes the enlarging of flared section, when the hydraulic press pressure head contacts with the adjustment cover, accomplishes enlarging.
Two, pipe to be processed is taken off from the enlarging frock together with the enlarging post; Then the enlarging column bottom also promptly is positioned at the outer part of pipe to be processed and inserts an external diameter greater than pipe maximum outside diameter to be processed, internal diameter barrier part greater than enlarging post maximum outside diameter; Through a push rod that penetrates pipe to be processed the enlarging post is ejected in pipe to be processed, accomplish discharging.
Three, carry out the reducing of reducing section through the reducing frock, reducing frock and enlarging frock are similar, and its difference only is to change the enlarging post into the reducing cover.Add man-hour, the pipe other end to be processed is inserted in the reducing cover, hydraulic press is depressed; Treating processing tube through the pipe other end to be processed pressurizes; Progressively accomplish the reducing of reducing section, when the hydraulic press pressure head contacts with the adjustment cover, accomplish reducing, extract pipe to be processed out and accomplish whole machining process.
In the above-mentioned existing technology; Enlarging post, reducing cover are generally and directly are positioned on the base plate, and through the pressure fixing in the process, pipe to be processed is generally manual synchronizing with the axiality of enlarging post, reducing cover; The randomness of therefore installing, the randomness that pipe to be processed is installed owing to enlarging post, reducing cover; Finally the coaxial accuracy of axle tube reducing section, flared section, uiform section section is poor, and the pressure in the time of can further aggravating reducing after especially enlarging is pressed partially is inclined to one side, forms the stack of coaxiality error.Simultaneously, existing technology, step is many, labour intensity is big, and productivity ratio is low.
The utility model content
The utility model technical problem to be solved provide a kind of easy to use, working (machining) efficiency is high, and can guarantee the axle tube moulding frock of final axle tube reducing section, flared section, uiform section section axiality.
The utility model solves the technical scheme that its technical problem adopted: axle tube moulding frock; Comprise flaring die, reducing die; Said flaring die comprises the reaming post, and said reducing die comprises the reducing cover, is provided with axial assurance mechanism that matches with the stage casing of axle tube and the holder that axially guarantees mechanism; Axis with axial assurance mechanism is the datum axis of frock, and the axis of said enlarging post, reducing cover all overlaps with datum axis and enlarging post, reducing overlap positioned opposite.
Further, the said mechanism that axially guarantees is the guide that is provided with pilot hole, is that datum axis and guide are positioned at flaring die, reducing die between the two with the pilot hole axis.
As a kind of preferred, said guide adopts the axial subdivision structure, is constituted by two pressing molds that are provided with arc groove.
Further, be provided with the locking cylinder that is installed on the holder, said two pressing molds one of them be fixed in holder, another is installed on the locking cylinder and drive through locking cylinder; The corresponding central angle of the arc groove of said two pressing molds is provided with locking cylinder control system and reaches the oil pressure sensor that links to each other with locking cylinder control system less than 180 °.
Further, said reducing die is fixedly connected with holder.
Further, said flaring die is provided with enlarging length limited step, and said reducing die is provided with reducing length limited step.
Further, said flaring die, reducing die both one of them is provided with the exhaust passage that is communicated with in outside and the axle tube at least.
Further, said flaring die comprises the enlarging die holder, and said enlarging post is installed on the enlarging die holder through removably connecting; Said reducing die comprises the reducing die holder, and said reducing cover is installed on the reducing die holder through removably connecting.
Concrete, said enlarging die holder is provided with guide pillar, and the other end of the axially relative enlarging die holder of said guide pillar is provided with and external screw thread; It axially is provided with the internal diameter installing hole consistent with the guide pillar external diameter said enlarging post upper edge, and said enlarging post is enclosed within on the guide pillar through installing hole; The enlarging die holder end face adjacent with the enlarging post is greater than the maximum section of enlarging post; Said enlarging axis of a cylinder is spacing fixing through enlarging die holder end face, the locking nut that matches with guide pillar respectively to two ends, and constitutes enlarging length limited step by the enlarging die holder end face in the enlarging post outside;
Concrete; Said reducing die comprises packing ring, ring washer; Said reducing die holder is provided with the step through hole, and said ring washer, reducing cover all are installed in the through hole also circumferentially spacing fixing through through-hole wall, and said ring washer is fixed in the through hole aperture; The reducing cover that the axial two ends of said ring washer are passed through respectively, through hole step surface are spacing fixing; It is spacing fixing that the packing ring, the ring washer that pass through respectively at axial two ends are overlapped in said reducing, and said ring washer endoporus aperture is more than or equal to the maximum inner diameter of reducing cover, and said packing ring endoporus internal diameter is less than the minimum diameter of reducing cover; Constitute the exhaust passage that is communicated with in outside and the axle tube by through hole, packing ring endoporus, constitute reducing length limited step by the inboard washer face of reducing cover.
The beneficial effect of the utility model is: add man-hour; At first accomplish pipe to be processed and the cooperation that axially guarantees mechanism, guarantee the coincidence of tube's axis to be processed and datum axis through the axial mechanism that guarantees, therefore; Guaranteed that enlarging post in the process, reducing cover, pipe three's to be processed is coaxial; Also promptly guaranteed the axiality of final axle tube reducing section, flared section, uiform section section, and one step of enlarging, reducing accomplish, easy to use, working (machining) efficiency is high.
Description of drawings
Fig. 1 is the structural representation of the utility model frock.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
The axle tube moulding frock of the utility model; Comprise flaring die 1, reducing die 2; Said flaring die 1 comprises reaming post 11, and said reducing die 2 comprises reducing cover 21, is provided with axial assurance mechanism that matches with the stage casing of axle tube and the holder that axially guarantees mechanism; Axis with axial assurance mechanism is the datum axis of frock, and the axis of said enlarging post 11, reducing cover 21 all overlaps with datum axis and enlarging post 11, reducing overlap 21 positioned opposite.
Add man-hour; At first accomplish pipe to be processed and the cooperation that axially guarantees mechanism, guarantee the coincidence of tube's axis to be processed and datum axis through the axial mechanism that guarantees, therefore; Guaranteed that enlarging post 11 in the process, reducing cover 21, pipe three's to be processed is coaxial; Also promptly guaranteed the axiality of final axle tube reducing section, flared section, uiform section section, and one step of enlarging, reducing accomplish, easy to use, working (machining) efficiency is high.
According to institute's employing pressworking equipment, axially guarantee the difference of mechanism, flaring die 1, reducing die 2, axially guarantee that the installation form of mechanism is also different, such as: one, adopt the single hydraulic cylinder pressworking equipment; And with the guide 3 that is provided with pilot hole as axially guaranteeing mechanism, can be with guaranteeing that axially mechanism, reducing die 2 are installed on board, with board as holder; Flaring die 1 is installed on the pressure head of pressworking equipment, guarantees that axially mechanism and tubular axis to be processed are after be slidingly matched, machining; Axle tube is extracted out with enlarging post 11, and on flaring die 1, outside the enlarging post 11, the sleeve of axial stretching is set, and adds man-hour; The sleeve withdrawal; After machining, the reset force through sleeve ejects axle tube from enlarging post 11, accomplishes discharging; Two, adopt the single hydraulic cylinder pressworking equipment, but axially guarantee mechanism adopt with tubular axis to be processed to the guide post that is slidingly matched, guide post is installed in enlarging post 11 heads or is slidingly matched with enlarging post 11 and passes that to stretch into pipe to be processed behind the enlarging post 11 inner; Three, adopt the double hydraulic cylinder pressworking equipment; Axially guarantee that mechanism adopts clamp mechanism such as vice and is installed on board, as holder, flaring die 1, reducing die 2 are installed on two pressure heads of pressworking equipment respectively with board; Guarantee that axially mechanism is fixedly connected with pipe to be processed; After machining, flaring die 1, reducing die 2 are retreated with axle tube with pressure head and are broken away from, and after unclamping axial assurances mechanism, take off axle tube completion discharging.
For making things convenient for selecting for use of pressworking equipment, preferably adopt single hydraulic cylinder equipment, therefore guarantee axially that preferably mechanism is slidingly matched with pipe to be processed; The guide post structure length is big, yielding simultaneously; And the little then guiding of fit clearance is poor, fit clearance is greatly then assembled difficulty; Therefore; Best, the said mechanism that axially guarantees is the guide 3 that is provided with pilot hole 32, is that datum axis and guide 3 are positioned at flaring die 1, reducing die 2 between the two with pilot hole 32 axis.In order to further facilitate operation; Said guide 3 adopts the axial subdivision structure, is constituted by two pressing molds 31 that are provided with arc groove, and therefore pipe to be processed need not to insert, extract out guide 3; Can shorten the stroke that pressure head is return greatly; Pipe to be processed easy to loading and unloading, and can adjust handled easily when guaranteeing quality of fit to fit clearance through pad etc.
Further, be provided with the locking cylinder that is installed on the holder, said two pressing molds 31 one of them be fixed in holder, another is installed on the locking cylinder and through locking cylinder and drives; The corresponding central angle of the arc groove of said two pressing molds 31 is provided with locking cylinder control system and reaches the oil pressure sensor that links to each other with locking cylinder control system less than 180 °.Through oil pressure sensor the piston stroke of locking cylinder is controlled, processed when initial, the locking cylinder piston is depressed, and when oil pressure reached setting value, piston slow astern set a distance formed the fit clearance that is slidingly matched.
In order to further facilitate discharging, said reducing die 2 is fixedly connected with holder, after machining; The locking cylinder piston is depressed; When oil pressure reaches setting value, stop, making sleeve 3 be fixedly connected, thereby the pressworking equipment ram retracts makes enlarging post 11 and axle tube break away from axle tube.
Under identical pressure stroke, the flared section of axle tube, reducing segment length sum unanimity, but process owing to adopting the single hydraulic cylinder reinforcing to treat the processing tube two ends simultaneously; Therefore possibly there are deviation in reducing section, both length ratios of flared section, and therefore in order to improve machining accuracy, said flaring die 1 is provided with enlarging length limited step 15; Said reducing die 2 is provided with reducing length limited step 26; In the process, after enlarging length reaches, avoid the further insertion of enlarging post 11 through enlarging length limited step 15; Reducing length limited step 26 in like manner; After machining, reducing length limited step 26, enlarging length limited step 15 contact with axle tube two ends end face respectively, thereby have guaranteed the proportional precision between three sections of the axle tubes.
Because two ends process simultaneously; 21 tight fits are overlapped with enlarging post 11, reducing respectively in pipe to be processed two ends; Gas compression influence processing in the pipe to be processed, increase energy consumption, said flaring die 1, reducing die 2 both one of them is provided with the exhaust passage that is communicated with in outside and the axle tube at least.
In order to use the processing of different size axle tube, said flaring die 1 comprises enlarging die holder 13, and said enlarging post 11 is installed on the enlarging die holder 13 through removably connecting; Said reducing die 2 comprises reducing die holder 23, and said reducing cover 21 is installed on the reducing die holder 23 through removably connecting.
Embodiment one
As shown in Figure 1; The axle tube moulding frock of present embodiment comprises flaring die 1, reducing die 2, and said flaring die 1 comprises reaming post 11; Said reducing die 2 comprises reducing cover 21; Being provided with the sleeve 3 that matches with the stage casing of axle tube and the holder of sleeve 3, is the datum axis of frock with the axis of sleeve 3 pilot holes 32, and the axis of said enlarging post 11, reducing cover 21 all overlaps with datum axis and enlarging post 11, reducing overlap 21 positioned opposite in sleeve 3 axial two ends.Said guide 3 adopts the axial subdivision structure, is constituted by two pressing molds 31 that are provided with arc groove, and two pressing molds 31 are provided with up and down, installs for convenient, and it is block that guide 3 integral body are.Be provided with the locking cylinder that is installed on the holder, being installed on the locking cylinder and through locking cylinder of holder, top of being fixed in of below drives in said two pressing molds 31; The corresponding central angle of the arc groove of said pressing mold 31 is 170 °, the oil pressure sensor that is provided with locking cylinder control system and links to each other with locking cylinder control system.
Flaring die 1 comprises enlarging die holder 13, and said enlarging post 11 is installed in through removably connecting on the enlarging die holder 13, and concrete, enlarging die holder 13 is provided with guide pillar 12, and the other end of said guide pillar 12 axially relative enlarging die holders 13 is provided with and external screw thread; It axially is provided with the internal diameter installing hole 14 consistent with guide pillar 12 external diameters said enlarging post 11 upper edges, and said enlarging post 11 is enclosed within on the guide pillar 12 through installing hole 14; Enlarging die holder 13 end faces adjacent with enlarging post 11 are greater than the maximum section of enlarging post 11; Said enlarging post 11 axial two ends are spacing fixing through enlarging die holder 13 end faces, the locking nut that matches with guide pillar 12 16 respectively, and constitute enlarging length limited step 15 by enlarging die holder 13 end faces in enlarging post 11 outsides.
Reducing die 2 comprises reducing die holder 23; Said reducing cover 21 is installed on the reducing die holder 23 through removably connecting, and concrete, reducing die 2 comprises packing ring 24, ring washer 25; Said reducing die holder 23 is provided with step through hole 22; Said ring washer 24, reducing cover 21 all are installed in the through hole 22 and are circumferentially spacing fixing through through hole 22 walls, and said ring washer 25 is fixed in through hole 22 apertures, spacing the fixing of reducing cover 21, through hole 22 step surfaces that said ring washer 24 axial two ends are passed through respectively; Packing ring 24, ring washer 25 that said reducing cover 24 axial two ends are passed through respectively are spacing fixing; Said ring washer 25 endoporus are horn-like, and minimum and this end endoporus aperture of wherein adjacent with reducing die holder 23 an end endoporus internal diameter equals reducing and overlaps 21 maximum inner diameter, and said packing ring 24 endoporus internal diameters overlap 21 minimum diameter less than reducing; Constitute the exhaust passage that is communicated with in outside and the axle tube by through hole 22, packing ring 24 endoporus, constitute reducing length limited step 26 by reducing cover 21 inboard packing ring 24 end faces.
Through above-mentioned guide pillar 12, through hole 22, flaring die 1, reducing die 2 all can be installed the enlarging post 11 and the reducing cover 21 of different distortion length and radial dimension.
Be convenient installation, simplified structure; Pressworking equipment adopts horizontal trimmer, and this machine comprises the auxilliary longitudinally hydraulic cylinder of a horizontal main hydraulic cylinder and, with main hydraulic cylinder as the shaping dope cylinder pressure; To assist hydraulic cylinder as locking cylinder; As holder, reducing die 2 is fixedly connected with board with the trimmer board, and flaring die 1 is installed on the main hydraulic cylinder pressure head.
Claims (10)
1. axle tube moulding frock; Comprise flaring die (1), reducing die (2); Said flaring die (1) comprises reaming post (11), and said reducing die (2) comprises reducing cover (21), it is characterized in that: be provided with axial assurance mechanism that matches with the stage casing of axle tube and the holder that axially guarantees mechanism; Axis with axial assurance mechanism is the datum axis of frock, and the axis of said enlarging post (11), reducing cover (21) all overlaps with datum axis and enlarging post (11), reducing cover (21) positioned opposite.
2. axle tube moulding frock as claimed in claim 1; It is characterized in that: the said mechanism that axially guarantees is the guide (3) that is provided with pilot hole (32), is that datum axis and guide (3) are positioned at flaring die (1), reducing die (2) between the two with pilot hole (32) axis.
3. axle tube moulding frock as claimed in claim 2 is characterized in that: said guide (3) adopts the axial subdivision structure, is constituted by two pressing molds (31) that are provided with arc groove.
4. axle tube moulding frock as claimed in claim 3 is characterized in that: be provided with the locking cylinder that is installed on the holder, said two pressing molds (31) one of them be fixed in holder, another is installed on the locking cylinder and drive through locking cylinder; The corresponding central angle of the arc groove of said two pressing molds (31) is provided with locking cylinder control system and reaches the oil pressure sensor that links to each other with locking cylinder control system less than 180 °.
5. axle tube moulding frock as claimed in claim 4 is characterized in that: said reducing die (2) is fixedly connected with holder.
6. like claim 1,2,3,4 or 5 described axle tube moulding frocks, it is characterized in that: said flaring die (1) is provided with enlarging length limited step (15), and said reducing die (2) is provided with reducing length limited step (26).
7. axle tube moulding frock as claimed in claim 6 is characterized in that: said flaring die (1), reducing die (2) both one of them is provided with and is communicated with outside and the interior exhaust passage of axle tube at least.
8. axle tube moulding frock as claimed in claim 7 is characterized in that: said flaring die (1) comprises enlarging die holder (13), and said enlarging post (11) is installed in through removably connecting on the enlarging die holder (13); Said reducing die (2) comprises reducing die holder (23), and said reducing cover (21) is installed in through removably connecting on the reducing die holder (23).
9. axle tube moulding frock as claimed in claim 8 is characterized in that: said enlarging die holder (13) is provided with guide pillar (12), and the other end of the axially relative enlarging die holder (13) of said guide pillar (12) is provided with and external screw thread; It axially is provided with the internal diameter installing hole (14) consistent with guide pillar (12) external diameter said enlarging post (11) upper edge, and said enlarging post (11) is enclosed within on the guide pillar (12) through installing hole (14); Enlarging die holder (13) end face adjacent with enlarging post (11) is greater than the maximum section of enlarging post (11); Said enlarging post (11) axially two ends is spacing fixing through enlarging die holder (13) end face, the locking nut (16) that matches with guide pillar (12) respectively, and by the formation of enlarging die holder (13) end face outside the enlarging post (11) enlarging length limited step (15).
10. axle tube moulding frock as claimed in claim 8; It is characterized in that: said reducing die (2) comprises packing ring (24), ring washer (25); Said reducing die holder (23) is provided with step through hole (22); Said ring washer (24), reducing cover (21) all are installed in the through hole (22) and through through hole (22) wall is circumferentially spacing and fix; Said ring washer (25) is fixed in through hole (22) aperture, and reducing cover (21), through hole (22) step surface that the axial two ends of said ring washer (24) are passed through respectively are spacing fixing, and packing ring (24), ring washer (25) that the axial two ends of said reducing cover (24) are passed through respectively are spacing fixing; Said ring washer (25) endoporus aperture is more than or equal to the maximum inner diameter of reducing cover (21); Said packing ring (24) endoporus internal diameter constitutes the exhaust passage that is communicated with in outside and the axle tube less than the minimum diameter of reducing cover (21) by through hole (22), packing ring (24) endoporus, and packing ring (24) end face inboard by reducing cover (21) constitutes reducing length limited step (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201656058U CN202114146U (en) | 2011-05-23 | 2011-05-23 | Half shaft bushing forming frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201656058U CN202114146U (en) | 2011-05-23 | 2011-05-23 | Half shaft bushing forming frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114146U true CN202114146U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201656058U Expired - Fee Related CN202114146U (en) | 2011-05-23 | 2011-05-23 | Half shaft bushing forming frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114146U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678627A (en) * | 2012-05-09 | 2012-09-19 | 刘思花 | Water outlet section for submersible electric pump in deep well and machining method |
| CN104190748A (en) * | 2014-05-07 | 2014-12-10 | 嘉善新易能精密机械设备厂 | Shaft sleeve shaper and working method thereof |
| CN112317629A (en) * | 2020-10-22 | 2021-02-05 | 珠海格力智能装备有限公司 | Pipe punching die and pipe punching equipment |
| CN114042816A (en) * | 2021-11-13 | 2022-02-15 | 贵州航天电子科技有限公司 | Flaring and shaping process for shell of radio control instrument |
| CN114643323A (en) * | 2022-04-22 | 2022-06-21 | 利瑞宝运动器材(吴江)有限公司 | Basketball stand metal tube forming device |
-
2011
- 2011-05-23 CN CN2011201656058U patent/CN202114146U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678627A (en) * | 2012-05-09 | 2012-09-19 | 刘思花 | Water outlet section for submersible electric pump in deep well and machining method |
| CN104190748A (en) * | 2014-05-07 | 2014-12-10 | 嘉善新易能精密机械设备厂 | Shaft sleeve shaper and working method thereof |
| CN112317629A (en) * | 2020-10-22 | 2021-02-05 | 珠海格力智能装备有限公司 | Pipe punching die and pipe punching equipment |
| CN114042816A (en) * | 2021-11-13 | 2022-02-15 | 贵州航天电子科技有限公司 | Flaring and shaping process for shell of radio control instrument |
| CN114643323A (en) * | 2022-04-22 | 2022-06-21 | 利瑞宝运动器材(吴江)有限公司 | Basketball stand metal tube forming device |
| CN114643323B (en) * | 2022-04-22 | 2023-12-22 | 利瑞宝运动器材(吴江)有限公司 | Basketball stand metal tube forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jianan Industry Co., Ltd., Sichuan Prov. Assignor: Jian'an Rear Axle Automobile Co., Ltd. China Chang'an Sichuan Branch Contract record no.: 2012510000091 Denomination of utility model: Half shaft bushing forming frock Granted publication date: 20120118 License type: Exclusive License Record date: 20120920 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jianan Industry Co., Ltd., Sichuan Prov. Assignor: Jian'an Rear Axle Automobile Co., Ltd. China Chang'an Sichuan Branch Contract record no.: 2012510000091 Date of cancellation: 20121130 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jianan Industry Co., Ltd., Sichuan Prov. Assignor: Jian'an Rear Axle Automobile Co., Ltd. China Chang'an Sichuan Branch Contract record no.: 2012510000177 Denomination of utility model: Half shaft bushing forming frock Granted publication date: 20120118 License type: Exclusive License Record date: 20121224 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20160523 |