CN107617681A - A kind of hind axle pipe holder plate chamfering leveling composite die and technique - Google Patents
A kind of hind axle pipe holder plate chamfering leveling composite die and technique Download PDFInfo
- Publication number
- CN107617681A CN107617681A CN201711060975.3A CN201711060975A CN107617681A CN 107617681 A CN107617681 A CN 107617681A CN 201711060975 A CN201711060975 A CN 201711060975A CN 107617681 A CN107617681 A CN 107617681A
- Authority
- CN
- China
- Prior art keywords
- mould
- leveling
- plate
- chamfering
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention discloses a kind of hind axle pipe holder plate chamfering leveling composite die and technique, mould includes binder spring, mould in leveling, mould in chamfering, side shield, location-plate and the lower mould of leveling, it is characterized in that, the groove in an automatic Correction Die gap is respectively provided with the position of the bottom plate front and rear sides, it is respectively provided with the boss in an automatic Correction Die gap in chamfering on the rear and front end correspondence position of mould and the lower mould of leveling respectively, the lower aligning gear that the lower horizontal fixed position of mould of leveling is formed between the boss of mould and the groove of bottom plate of leveling, the aligning gear of mould up and down motion position in chamfering is formed in chamfering between the boss of mould and the groove of bottom plate；Mould coordinates with die clearance in chamfering in leveling, forms leveling operating position in leveling between mould and the lower mould of leveling, chamfering operating position is formed between mould and the lower mould of leveling in chamfering.The uniformity in inventive die gap avoids the need for manually controlling, and machining accuracy is high, and product quality is stable.
Description
Technical field
The invention belongs to machinery equipment field, is related to a kind of manufacture mould for automobile back wheel central siphon supporting plate, especially
Be related to a kind of hind axle pipe holder plate chamfering-leveling composite die and process combination process and once at the same make four techniques.
Background technology
Flat spring bracket assembly is the important component in hind axle pipe assembly, and supporting plate be on flat spring bracket assembly must
One of standby accessory, it directly affects ride comfort in bonding strength and running car, by property, reliability, therefore supporting plate falls
Angle square cun and planarity requirements are higher.Supporting plate is that point four procedures are processed by traditional mode of production, and technological process is:
Blanking → blanking → CNC milling machine chamfering → leveling, to reach product design requirement.Although with CNC milling machine chamfering, but due to
The each clamping of workpiece has error, and the uniformity of such workpiece is difficult to ensure that, product quality has risk always, and produces time-consuming
Long, production efficiency is relatively low.
Therefore considered based on optimization property existing for production technology in the prior art, design and produce out and a set of be different from original side
Case technique and mould (i.e. boss, the groove structure in the automatic Correction Die gap of mold design one, upper and lower die clearance it is equal
Evenness does not just control by pincers worker manual skill, but ensures by machine finish）, and chamfering, leveling two-step are carried out
It is compound, and and can once completes the processing and fabricating of four workpiece, so as to improve the quality stability of product and production efficiency, just
Seem very necessary.
The content of the invention
One of the object of the invention is to provide a kind of disposable completion supporting plate chamfering-leveling composite die, by using certainly
The structures such as boss, the groove in Correction Die gap are moved, to improve mould and die accuracy, life-span and product quality, the chamfering-leveling is compound
Mould installion carries out chamfering to supporting plate, flattens the Compound Machining of process on a hydraulic press.
The second object of the present invention, which is that design is a kind of, uses the supporting plate chamfering-leveling composite die, once makes simultaneously
Make four products, to substitute traditional technique for once only making a workpiece.
What an object of the present invention was realized in：
A kind of hind axle pipe holder plate chamfering flattens composite die, and the top half of mould includes cope plate, upper die plate, binder
Spring, upper mounted plate, mould in mould and chamfering in leveling, the latter half of mould include bottom plate, side shield, location-plate, under
Die-cushion plate and the lower mould of leveling；
It is respectively provided with the groove in an automatic Correction Die gap on the position of the bottom plate front and rear sides, mould and whole in chamfering
The boss in an automatic Correction Die gap is respectively provided with the rear and front end correspondence position of flat lower mould respectively, flattens the boss of lower mould
Form the aligning gear of the lower horizontal fixed position of mould of leveling between the groove of bottom plate, the boss of mould and lower fixation in chamfering
The aligning gear of mould up and down motion position in chamfering is formed between the groove of plate；
Mould coordinates with die clearance in chamfering in leveling, formation leveling operating position between mould and the lower mould of leveling in leveling, in chamfering
Chamfering operating position is formed between mould and the lower mould of leveling.
Further, mould is in the solid shaped cavity in the centre of upper mould fixed plate in the chamfering, and mould passes through discharging spiral shell in leveling
Bolt is flexibly connected with binder spring, upper mounted plate, upper die plate, cope plate；
The side shield of both sides is attached separately in the solid shaped cavity both ends of bottom plate, is flattened lower mould and is placed on by bottom plate and side
It is oriented among baffle plate composition in shape chamber, location-plate is fixed on the lower mould centre position of leveling；
Further, the lower section for flattening lower mould is provided with ejector beam, and ejector beam is coordinated by gap is directly placed at lower mold backing plate with
In liftout rod aperture corresponding to template is each.
Further, mould is mounted in by being interference fitted in the solid shaped cavity in centre of upper mould fixed plate in the chamfering, and is passed through
Bolt is connected with upper die plate, and cope plate, upper die plate are connected by bolt and alignment pin with upper mould fixed plate；
Side shield is attached separately to by interference fit in the solid shaped cavity both ends of bottom plate and side passes through bolt and lower fixation
Plate is connected, and lower template, lower mold backing plate are connected by bolt and alignment pin with bottom plate, and location-plate is bolted on leveling
On lower mould, flatten lower mould and coordinated by gap in the middle guiding shape chamber for being directly placed at and being made up of bottom plate and side shield.
Further, the automatic Correction Die gap of the automatic Correction Die gap boss of mould and bottom plate in the chamfering
Groove double-faced clearance is 0.08~0.10mm.
Further, the bottom plate is monolithic construction.
Further, the automatic Correction Die gap of the automatic Correction Die gap boss of mould and bottom plate under the leveling
Groove double-faced clearance is 0.14~0.16mm.
Further, it is whole that the thickness that side shield and bottom plate are highly less than work plate with flattening lower mould difference in height subtracts workpiece
Flat thickness.
Correction Die of the invention automatic set die clearance and, the uniformity of die clearance avoids the need for depending on pincers worker people
Work technical ability controls, but ensures by machine finish, so as to improve mould and die accuracy, so as to ensure chamfering work piece size.
Bottom plate is monoblock type, and side shield is fixed in bottom plate, can so improve mould strength, so that product
Chamfer dimesion is stable, and improves die life.
Mould had both played binder, leveling in leveling, and and position-limiting action, i.e. mould to bottom dead centre, the upper table of mould in leveling
When face touches the lower surface of upper mounted plate, mould limits the depth of chamfering of mould in chamfering in leveling, and workpiece planarization is entered
Row leveling, so as to ensure chamfering work piece and flatness in the margin of tolerance.
The lower mould height of leveling is lower than side shield and bottom plate height, so can both ensure accurate work piece positioning, and again might be used
Enable in leveling mould kill workpiece to be flattened, without with side shield and bottom plate interference.
A procedure is combined as by traditional two procedures (i.e. chamfering, leveling process), particularly chamfering process is by tradition
Machining method optimizing be punch process mode technique, and by traditional stamping die once only make a workpiece change
Once to make four workpiece simultaneously, so as to which production efficiency improves 24 times, die life improves 5 times, and product quality is stable.
Brief description of the drawings
Fig. 1 is the mould main structure diagram of the embodiment of the present invention 1.
Fig. 2 is the overlooking the structure diagram of the part of the lower die of the embodiment of the present invention 1.
Fig. 3 is the chamfering upper die structure schematic diagram of the mould of the embodiment of the present invention 1.
Fig. 4 is mould present invention looks up structural representation in the chamfering of the mould of the embodiment of the present invention 1.
Fig. 5 is the supporting plate structure schematic diagram of the embodiment of the present invention 1.
Fig. 6 is the supporting plate overlooking the structure diagram of the embodiment of the present invention 1.
In figure：Cope plate 1, guide pin bushing 2, upper die plate 3, binder spring 4, upper mounted plate 5, mould 6 in leveling, mould 7 in chamfering,
Bottom plate 8, side shield 9, location-plate 10, guide pillar 11, lower mold backing plate 12, mould 13 under flattening, ejector beam 14, lower template 15, from
Convex the 100 of dynamic Correction Die gap, the groove 200 in automatic Correction Die gap, workpiece 300.
Embodiment
The present invention can be embodied by technical scheme, by that can enter traveling one to the present invention to the following examples
The description of step, but the scope of the present invention is not limited to following embodiments.
Embodiment 1：Exemplified by processing certain car hind axle pipe holder plate：
Certain car hind axle pipe holder plate chamfering-leveling process is compound and once makes the compound die mould structure of four such as simultaneously
" Fig. 1 and Fig. 2 " are shown：Mould is divided into the top half of mould and the latter half of mould.
The top half structural relation of mould is：The guide pin bushing 2 is by being interference fitted the dowel hole mounted in the both sides of cope plate 1
In, mould 7 is by being interference fitted in the solid shaped cavity in the centre of upper mould fixed plate 5 in chamfering, and passes through bolt and upper die plate 3
Connection, cope plate 1, upper die plate 3 are connected by bolt and alignment pin with upper mould fixed plate 5, mould 6 and mould 7 in chamfering in leveling
Coordinated by gap, and flatten upper mould 6 and lived by stripper bolt and binder spring 4, upper mounted plate 5, upper die plate 3, cope plate 1
Dynamic connection.
The latter half structural relation of mould is：The guide pillar 11 is by being interference fitted the guide pillar mounted in the both sides of lower template 15
Kong Zhong, side shield 9 by interference fit be attached separately in the solid shaped cavity both ends of bottom plate 8, and side by bolt with
Fixed plate 8 is connected, and lower template 15, lower mold backing plate 12 are connected by bolt and alignment pin with bottom plate 8, ejector beam 14 by
Gap, which coordinates, to be directly placed in lower mold backing plate 12 and each corresponding liftout rod aperture of lower template 15, and location-plate 10 is bolted on
On the lower mould 13 of leveling, mould 13 is directly placed at the centre being made up of bottom plate 8 and side shield 9 by gap cooperation and led under flattening
Into shape chamber.
Certain car hind axle pipe holder plate chamfering-leveling process is compound and once makes the composite die of four simultaneously by general
The mounting means of logical diel is arranged on 200T hydraulic presses of the post of single action four with liftout tank.
The chamfering, whole of composite die can be directly used in after such certain blanking of car hind axle pipe holder plate, blanking process
Flat Compound Machining：
1st step：Described hind axle pipe holder plate chamfering-leveling process is compound and once make the composite die of four simultaneously
On 200T hydraulic press of the post of single action four with liftout tank；
2nd step：By four workpiece of stent preform plate (respectively placing two pieces workpiece in i.e. left and right both sides) after blanking, blanking process point
It is not placed on the lower mould 13 of leveling, and is had good positioning with bottom plate 8 before workpiece, is had good positioning workpiece with side shield 9 and location-plate 10
Two sides（As shown in Figure 2）；
3rd step：Hydraulic press is started, workbench moves downward with mould 7 in the upper mould 6 of leveling and chamfering on lathe, in this process
In flatten upper mould 6 first with binder spring 4 because the downward thrust of compression is in contact with workpiece and with constantly downward
Workpiece gradually the more is pressed the more tight by motion, and then mould 7 contact with workpiece and with constantly moving downward gradual implementation pair in chamfering
The chamfer machining of workpiece, until flattening the upper surface of upper mould 6 untill the lower surface of upper mounted plate 5, in chamfering mould 7 with it is whole
Flat lower mould 13 completes the chamfering process of workpiece, and the plane of the upper mould 6 of leveling and the lower completion of mould 13 workpiece of leveling flattens process；
4th step：After supporting plate chamfering-leveling processing, the top half return of hydraulic press upper table driven mold, start hydraulic pressure
Machine liftout tank, liftout tank ejection ejector beam 14, the lower mould 13 of the ejection leveling of ejector beam 14, flatten lower mould 13 and eject workpiece, then with auxiliary
Assistant engineer, which has, takes out workpiece；
5th step：Repeat step 2 arrives the operation of step 4, carries out down the making of four workpiece.
Certain car hind axle pipe holder plate makes four using chamfering-leveling composite die and combination process and once simultaneously
After technique, chamfering work piece 1.0 (+0.3/0) × 45 °, leveling flatness≤0.3mm are in the margin of tolerance, and workpiece quality
It is stable.Sustainable stabilization ensures that certain car hind axle pipe holder plate reaches product drawing design requirement, and production efficiency carries
High 24 times, die life improves 5 times.
Claims (8)
1. a kind of hind axle pipe holder plate chamfering flattens composite die, the top half of mould includes cope plate（1）, upper die plate
（3）, binder spring（4）, upper mounted plate（5）, mould in leveling（6）With mould in chamfering（7）, the latter half of mould includes lower fixation
Plate（8）, side shield（9）, location-plate（10）, lower mold backing plate（12）With the lower mould of leveling（13）, it is characterized in that,
The bottom plate（8）It is respectively provided with the groove in an automatic Correction Die gap on the position of front and rear sides, mould in chamfering
（7）And the lower mould of leveling（13）Rear and front end correspondence position on be respectively provided with the boss in an automatic Correction Die gap respectively, it is whole
Flat lower mould（13）Boss and bottom plate（8）Groove between form the aligning gear of the lower horizontal fixed position of mould of leveling, fall
Mould on angle（7）Boss and bottom plate（8）Groove between formed chamfering on mould（7）The aligning gear of up and down motion position；
Mould in leveling（6）With mould in chamfering（7）Gap coordinates, mould in leveling（6）With flattening lower mould（13）Between formed leveling work
Make position, mould in chamfering（7）With flattening lower mould（13）Between form chamfering operating position.
2. a kind of hind axle pipe holder plate chamfering leveling composite die according to claim 1, it is characterized in that, the chamfering
Upper mould（7）Mounted in upper mould fixed plate（5）The solid shaped cavity in centre in, mould in leveling（6）Pass through stripper bolt and binder spring
（4）, upper mounted plate（5）, upper die plate（3）, cope plate（1）It is flexibly connected；
The side shield of both sides（9）It is attached separately to bottom plate（8）Solid shaped cavity both ends in, flatten lower mould（13）It is placed under
Fixed plate（8）And side shield（9）It is oriented among composition in shape chamber, location-plate（10）It is fixed on the lower mould of leveling（13）Centre position
On；
A kind of hind axle pipe holder plate chamfering leveling composite die according to claim 2, it is characterized in that, flatten lower mould
（13）Lower section be provided with ejector beam（14）, ejector beam（14）Coordinated by gap and be directly placed at lower mold backing plate（12）And lower template
（15）In liftout rod aperture corresponding to each.
3. a kind of hind axle pipe holder plate chamfering leveling composite die according to Claims 2 or 3, it is characterized in that,
Mould in the chamfering（7）Upper mould fixed plate is mounted in by interference fit（5）The solid shaped cavity in centre in, and by bolt with
Upper die plate（3）Connection, cope plate（1）, upper die plate（3）Pass through bolt and alignment pin and upper mould fixed plate（5）Connection；
Side shield（9）Bottom plate is attached separately to by interference fit（8）Solid shaped cavity both ends in and side by bolt with
Bottom plate（8）Connection, lower template（15）, lower mold backing plate（12）Pass through bolt and alignment pin and bottom plate（8）Connection, positioning
Plate（10）It is bolted on the lower mould of leveling（13）On, flatten lower mould（13）Coordinated by gap and be directly placed at by lower fixation
Plate（8）And side shield（9）It is oriented among composition in shape chamber.
4. a kind of hind axle pipe holder plate chamfering leveling composite die according to claim 1, it is characterized in that, the chamfering
Upper mould（7）Automatic Correction Die gap boss and bottom plate（8）Automatic Correction Die clearance groove double-faced clearance be
0.08~0.10mm.
5. a kind of hind axle pipe holder plate chamfering leveling composite die according to claim 2, it is characterized in that, it is described lower solid
Fixed board（8）For monolithic construction.
6. a kind of hind axle pipe holder plate chamfering leveling composite die according to claim 1, it is characterized in that, the leveling
Lower mould（13）Automatic Correction Die gap boss and bottom plate（8）Automatic Correction Die clearance groove double-faced clearance be
0.14~0.16mm.
7. a kind of hind axle pipe holder plate chamfering leveling composite die according to claim 2, it is characterized in that, side shield
（9）And bottom plate（8）Height is with flattening lower mould（13）The thickness that difference in height is less than work plate subtracts workpiece leveling thickness.
8. a kind of hind axle pipe holder plate chamfering flattens compound technique, it is characterized in that：
1st step：A kind of hind axle pipe holder plate chamfering leveling composite die is arranged on 200T liquid of the post of single action four with liftout tank
On press；
2nd step：Four workpiece of stent preform plate after blanking, blanking process are individually placed to flatten lower mould（13）On, i.e., it is left and right
Two pieces workpiece is respectively placed on both sides, and uses bottom plate（8）Have good positioning before workpiece, use side shield（9）And location-plate（10）Positioning
Good workpiece two sides；
3rd step：Hydraulic press is started, workbench is with the upper mould of leveling on lathe（6）With mould in chamfering（7）Move downward, herein
During flatten upper mould first（6）With binder spring（4）Because the downward thrust of compression is in contact with workpiece and with holding
Move downward continuously gradually the more presses the more tight by workpiece, then mould in chamfering（7）Contacted with workpiece and with constantly moving downward
Gradually implement the chamfer machining to workpiece, until flattening upper mould（6）Upper surface to upper mounted plate（5）Lower surface be
Only, mould in chamfering（7）With flattening lower mould（13）The chamfering process of workpiece is completed, mould in leveling（6）With flattening lower mould（13）Complete
The plane leveling process of workpiece；
4th step：After supporting plate chamfering-leveling processing, the top half return of hydraulic press upper table driven mold, start hydraulic pressure
Machine liftout tank, liftout tank ejection ejector beam（14）, ejector beam（14）The lower mould of ejection leveling（13）, flatten lower mould（13）Eject work
Part, then take out workpiece with aid；
5th step：Repeat step 2 arrives the operation of step 4, carries out down the making of four workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711060975.3A CN107617681A (en) | 2017-11-02 | 2017-11-02 | A kind of hind axle pipe holder plate chamfering leveling composite die and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711060975.3A CN107617681A (en) | 2017-11-02 | 2017-11-02 | A kind of hind axle pipe holder plate chamfering leveling composite die and technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107617681A true CN107617681A (en) | 2018-01-23 |
Family
ID=61092986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711060975.3A Pending CN107617681A (en) | 2017-11-02 | 2017-11-02 | A kind of hind axle pipe holder plate chamfering leveling composite die and technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107617681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013971A (en) * | 2018-08-02 | 2018-12-18 | 江西江铃底盘股份有限公司 | A kind of left and right part mold of the once-forming product of Automobile drive rear axle support and its processing technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554039A (en) * | 2011-12-31 | 2012-07-11 | 无锡曙光模具有限公司 | Flange leveling mold of outlet manifold of automobile exhaust system |
| CN204564945U (en) * | 2015-04-29 | 2015-08-19 | 江西江铃底盘股份有限公司 | A kind of automobile inner bearing adjustment pad leveling mold |
| CN205289483U (en) * | 2016-01-18 | 2016-06-08 | 江西江铃底盘股份有限公司 | Chamfer mould that axle housing body was inserted |
| CN106040875A (en) * | 2016-08-12 | 2016-10-26 | 江西江铃底盘股份有限公司 | Sizing die for lower control rod supporting frame of automobile driving axle |
| CN107186048A (en) * | 2017-06-20 | 2017-09-22 | 江西江铃底盘股份有限公司 | A kind of back axle spring panel seat shaving die and trimming technology |
| CN208357603U (en) * | 2017-11-02 | 2019-01-11 | 江西江铃底盘股份有限公司 | A kind of hind axle pipe holder plate chamfering leveling composite die |
-
2017
- 2017-11-02 CN CN201711060975.3A patent/CN107617681A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554039A (en) * | 2011-12-31 | 2012-07-11 | 无锡曙光模具有限公司 | Flange leveling mold of outlet manifold of automobile exhaust system |
| CN204564945U (en) * | 2015-04-29 | 2015-08-19 | 江西江铃底盘股份有限公司 | A kind of automobile inner bearing adjustment pad leveling mold |
| CN205289483U (en) * | 2016-01-18 | 2016-06-08 | 江西江铃底盘股份有限公司 | Chamfer mould that axle housing body was inserted |
| CN106040875A (en) * | 2016-08-12 | 2016-10-26 | 江西江铃底盘股份有限公司 | Sizing die for lower control rod supporting frame of automobile driving axle |
| CN107186048A (en) * | 2017-06-20 | 2017-09-22 | 江西江铃底盘股份有限公司 | A kind of back axle spring panel seat shaving die and trimming technology |
| CN208357603U (en) * | 2017-11-02 | 2019-01-11 | 江西江铃底盘股份有限公司 | A kind of hind axle pipe holder plate chamfering leveling composite die |
Non-Patent Citations (3)
| Title |
|---|
| 罗虎: "《冲压工艺与模具设计技巧图集速查手册 第2卷》", 30 June 2015, 吉林出版集团有限责任公司 * |
| 钟毓斌: "《冲压工艺与模具设计》", 31 May 2000, 机械工业出版社 * |
| 钟翔山等: "《冲压加工质量控制应用技术》", 31 August 2011, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013971A (en) * | 2018-08-02 | 2018-12-18 | 江西江铃底盘股份有限公司 | A kind of left and right part mold of the once-forming product of Automobile drive rear axle support and its processing technology |
| CN109013971B (en) * | 2018-08-02 | 2020-03-31 | 江西江铃底盘股份有限公司 | One-step forming die and machining process for left and right parts of automobile driving rear axle support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104826938A (en) | Automobile tray bearing nut locking gasket blanking-molding-punching composite die and process thereof | |
| CN207681305U (en) | A kind of torsion beam of automobile braking pipe holder or so part synchronizes bending-channeling composite die | |
| CN109500339A (en) | Mould structure for valve body manufacture | |
| CN204603059U (en) | A kind of automobile tray formula bearing nut lock washer blanking forming punching composite die | |
| CN204108101U (en) | A kind of automobile chair height regulates the continuous fine stamping die of tooth plate | |
| CN105251893A (en) | Punching-trimming matched die for rear axle oil baffle disc and machining process of die | |
| CN107617681A (en) | A kind of hind axle pipe holder plate chamfering leveling composite die and technique | |
| CN208357603U (en) | A kind of hind axle pipe holder plate chamfering leveling composite die | |
| CN105478540B (en) | A kind of new online accurate secondary bending and molding device | |
| CN204448930U (en) | A kind of ERW pre-bending forming tester | |
| CN206981567U (en) | A kind of automobile drive axle adjusting nut deep-drawing shaping die | |
| CN206241061U (en) | A kind of automobile drive axle U-board spring bracket supporting plate multistation processing mold | |
| CN105537399A (en) | Novel four-direction wedge die mechanism and using method thereof | |
| CN105903818B (en) | A kind of this forming die of automobile drive axle housing | |
| CN103357773A (en) | Clamp pressing type pipe fitting pipe end forming machine | |
| CN201324762Y (en) | Punching-extrusion rounding device for processing automobile guide sleeves | |
| CN203611025U (en) | Railway vehicle large part machining automation fixture | |
| CN204564945U (en) | A kind of automobile inner bearing adjustment pad leveling mold | |
| CN109821968A (en) | Long processing platform is taken after a kind of forming of automobile axle shell pieces | |
| CN207681262U (en) | A kind of Automobile drive rear axle bracket assy., spring seat shaving die | |
| CN110936044B (en) | Assembly welding method for B-type subway vehicle frame | |
| CN208696754U (en) | A kind of roller type cone side machine | |
| CN207325765U (en) | A kind of rear axle spring panel seat imprint mold | |
| CN102873633A (en) | Method for extruding and polishing inner hole of shaft workpiece | |
| CN207325712U (en) | A kind of blanking two pieces blanking die of Rear Axle Steel Plate seat support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180123 |