CN103692244A - Crane-type shaft box processing and positioning device - Google Patents
Crane-type shaft box processing and positioning device Download PDFInfo
- Publication number
- CN103692244A CN103692244A CN201310724419.7A CN201310724419A CN103692244A CN 103692244 A CN103692244 A CN 103692244A CN 201310724419 A CN201310724419 A CN 201310724419A CN 103692244 A CN103692244 A CN 103692244A
- Authority
- CN
- China
- Prior art keywords
- axle box
- pivoted arm
- arm axle
- positioning device
- base
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a crane-type shaft box processing and positioning device which comprises a base, a positioning post, a support seat, a press device and a positioning stop post, wherein an installation positioning hole is formed in the base, the positioning post is arranged on the base and used for positioning a shock absorber installation hole of a crane-type shaft box, the support seat is arranged on the base and used for supporting one end, far from the shock absorber installation hole, of the crane-type shaft box, the press device is arranged at one end, close to the support seat, of the base, and used for tightly pressing one end, far from the shock absorber installation hole, of the crane-type shaft box, and the positioning stop post is arranged on the base and used for positioning one end, far from the shock absorber installation hole, of the crane-type shaft box. With the adoption of the crane-type shaft box processing and positioning device provided by the embodiment of the invention, a crane-type shaft box can be positioned relative to a processing device by fixedly positioning and movably positioning, error accumulation caused by frequently positioning and clamping the crane-type shaft box is prevented, and the processing accuracy of the crane-type shaft box is further effectively improved.
Description
Technical field
The present invention relates to EMUs equipment technical field, particularly a kind of pivoted arm axle box processing and positioning device.
Background technology
In the pivoted arm axle box process of bogie, due to its complex contour, need on a plurality of of pivoted arm axle box, process.Because the equipment that machining needs is different, make pivoted arm axle box in process, need multiple clamping.
Wherein, the required equipment of processing pivoted arm axle box comprises the equipment such as vertical machining centre, portal milling cutter, numerical control vertical lathe and radial drill, pivoted arm axle box difference clamping is in the said equipment, make clamping and mismachining tolerance accumulation on each equipment, cause the mismachining tolerance of pivoted arm axle box larger, when serious, even can cause pivoted arm axle box to use.
Therefore, how improving the machining accuracy of pivoted arm axle box, is the art personnel problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of pivoted arm axle box processing and positioning device, improve the machining accuracy of pivoted arm axle box.
For achieving the above object, the invention provides following technical scheme:
A pivoted arm axle box processing and positioning device, comprising:
Base, is provided with mounting-positioning holes on described base;
Be arranged on described base, for the locating dowel of the shock absorber installing hole of positioning arm formula axle box;
Be arranged on described base, for supporting described pivoted arm axle box away from the supporting seat of one end of described shock absorber installing hole;
Be arranged at described base near one end of described supporting seat, for compressing described pivoted arm axle box away from the hold down gag of one end of shock absorber installing hole;
Be arranged on described base, for locating described pivoted arm axle box away from the location stop post of one end of described shock absorber installing hole.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, described location stopper posts is telescopic to be arranged on described base.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, also comprise and being arranged on described base, for the bolt being threaded with described pivoted arm axle box.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, also comprise and being arranged between described bolt and described supporting seat, for the adjusting seat of the horizontal centering of described pivoted arm axle box.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, described adjusting seat comprises and is fixedly installed on the supporting seat on described base and is arranged at the clamp screw lever apparatus on described supporting seat;
The quantity of described clamp screw lever apparatus is two, and its orientation is perpendicular to the orientation of described bolt and described supporting seat.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, described supporting seat and described base are bolted;
Described supporting seat and described base are located by alignment pin.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, described hold down gag comprises the connecting rod that is arranged on described base, be sheathed on compact heap on described connecting rod and with the nut of described connecting rod threaded engagement.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, described compact heap has the draw-in groove passing for described connecting rod.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, one end of described compact heap is the compression end for contacting with described pivoted arm axle box, and the other end is support end;
On described base, be provided with support column, the support end at the bottom of the top of described support column and described compact heap offsets.
Preferably, in above-mentioned pivoted arm axle box processing and positioning device, also comprise the lifting bolt that is arranged at described base.
From above-mentioned technical scheme, can find out, pivoted arm axle box processing and positioning device provided by the invention, in the time of on pivoted arm axle box being assemblied in to the pivoted arm axle box processing and positioning device that the embodiment of the present invention provides, pivoted arm axle box has machined shock absorber installing hole.The shock absorber installing hole of pivoted arm axle box is sheathed in locating dowel; Pivoted arm axle box is supported on supporting seat away from one end of shock absorber installing hole, by the location stop post being arranged on base, carries out spline location, and by the end face of hold down gag toward base.By the two ends of pivoted arm axle box are fixed, pivoted arm axle box is accurately installed on the pivoted arm axle box processing and positioning device that the embodiment of the present invention provides.The pivoted arm axle box processing and positioning device that the embodiment of the present invention provides, only need can complete pivoted arm axle box with respect to the location of processing unit (plant) by installation locating dowel and the location stop of base, the accumulation of error of having avoided pivoted arm axle box multiple bearing clamping and having caused, and then effectively improved the machining accuracy of pivoted arm axle box.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The pivoted arm axle box processing and positioning device that Fig. 1 provides for the embodiment of the present invention and the assembling schematic diagram of pivoted arm axle box;
The pivoted arm axle box processing and positioning device that Fig. 2 provides for the embodiment of the present invention and the assembling front view of pivoted arm axle box;
The structural representation of the pivoted arm axle box processing and positioning device that Fig. 3 provides for the embodiment of the present invention.
Wherein,
Base-1, hold down gag-2, supporting seat-3, locating dowel-4, stopper posts-5, location, bolt-6, adjusting seat-7, support column-8, lifting bolt-9, pivoted arm axle box-A.
The specific embodiment
The invention discloses a kind of pivoted arm axle box processing and positioning device, improve the machining accuracy of pivoted arm axle box.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the pivoted arm axle box processing and positioning device that Fig. 1 provides for the embodiment of the present invention and the assembling schematic diagram of pivoted arm axle box; The pivoted arm axle box processing and positioning device that Fig. 2 provides for the embodiment of the present invention and the assembling front view of pivoted arm axle box; The structural representation of the pivoted arm axle box processing and positioning device that Fig. 3 provides for the embodiment of the present invention.
The pivoted arm axle box processing and positioning device that the embodiment of the present invention provides, comprising: base 1, is provided with mounting-positioning holes on base 1; Be arranged on base 1, for the locating dowel 4 of the shock absorber installing hole of positioning arm formula axle box A; Be arranged on base 1 supporting seat 3 for supporting rotary arm formula axle box A away from one end of shock absorber installing hole; Be arranged at base 1 near one end of supporting seat 3, for compressing pivoted arm axle box A away from the hold down gag 2 of one end of shock absorber installing hole; Be arranged on base 1 the location stop post 5 for positioning arm formula axle box A away from one end of shock absorber installing hole.
As depicted in figs. 1 and 2, in the time of on pivoted arm axle box A being assemblied in to the pivoted arm axle box processing and positioning device that the embodiment of the present invention provides, pivoted arm axle box A has machined shock absorber installing hole.The shock absorber installing hole of pivoted arm axle box A is sheathed in locating dowel 4; Pivoted arm axle box A is supported on supporting seat 3 away from one end of shock absorber installing hole, by the location stop post 5 being arranged on base 1, carries out spline location, and by the end face of hold down gag 2 toward base 1.By the two ends of pivoted arm axle box A are fixed, pivoted arm axle box A is accurately installed on the pivoted arm axle box processing and positioning device that the embodiment of the present invention provides.The pivoted arm axle box processing and positioning device that the embodiment of the present invention provides, only need can complete pivoted arm axle box with respect to the location of processing unit (plant) by the locating dowel 4 of base and the positioning instant of 5 pairs of pivoted arm axle boxes of location stop post, the accumulation of error of having avoided pivoted arm axle box A multiple bearing clamping and having caused, and then effectively improved the machining accuracy of pivoted arm axle box A.
In the present embodiment, the location stopper posts 5 of pivoted arm axle box processing and positioning device is telescopic to be arranged on base 1.In pivoted arm axle box A installation process, making to locate stopper posts 5 stretches out with respect to base 1, so that one end that pivoted arm axle box A is supported on supporting seat 3 positions, in pivoted arm axle box A process, make to locate stopper posts 5 retraction base 1 inside, to avoid process equipment and location stopper posts 5 mutually to interfere.
Further, the pivoted arm axle box processing and positioning device that the embodiment of the present invention provides also comprises and being arranged on base 1, for the bolt 6 being threaded with pivoted arm axle box A.As shown in Figure 2, bolt 6 is through the upper supporting plate of base 1, with pivoted arm axle box A threaded engagement, to pivoted arm axle box, A applies the pulling force towards base 1, and, by bolt 6, coordinate with the screwed hole of pivoted arm axle box A, further improved the position precision on base 1 of pivoted arm axle box A.
As depicted in figs. 1 and 2, pivoted arm axle box processing and positioning device also comprises and being arranged between bolt 6 and supporting seat 3, for the adjusting seat 7 of the horizontal centering of pivoted arm axle box A.By adjusting seat 7 is set, further to pivoted arm axle box A on base 1 perpendicular to the position adjustments in the orientation of supporting seat 3 and locating dowel 4, the further accurate installation site accuracy of pivoted arm axle box A on pivoted arm axle box processing and positioning device.Wherein, the orientation with locating dowel 4 perpendicular to supporting seat 3 of the horizontal direction in the horizontal centering of pivoted arm axle box A.
Further, adjusting seat 6 comprises and is fixedly installed on the supporting seat on base 1 and is arranged at the clamp screw lever apparatus on supporting seat; The quantity of clamp screw lever apparatus is two, and its orientation orientation with supporting seat 3 perpendicular to bolt 6.When the pivoted arm axle box processing and positioning device providing with respect to the embodiment of the present invention at pivoted arm axle box A assembles, after making the two ends of pivoted arm axle box A be individually fixed in supporting seat 3 and locating dowel 4, the mid portion of pivoted arm axle box A is between two clamp screw lever apparatus, by regulating two clamp screw lever apparatus, make the screw rod end of two clamp screw lever apparatus prop up the both sides of pivoted arm axle box A, complete the horizontal centering of pivoted arm axle box A.
Preferably, supporting seat and base 1 are bolted; Supporting seat and base 1 are located by alignment pin.
In the pivoted arm axle box processing and positioning device providing in the embodiment of the present invention, hold down gag 2 comprises the connecting rod that is arranged on base 1, be sheathed on compact heap on connecting rod and with the nut of connecting rod threaded engagement, by nut, with respect to connecting rod, screw and reach compact heap and to base 1, compress the effect of pivoted arm axle box A.
As shown in Figure 1, compact heap has the draw-in groove passing for connecting rod.By draw-in groove is set, make nut be installed on all the time on connecting rod, only need the end of pivoted arm axle box A to be arranged on supporting seat 3, compact heap is arranged between nut and pivoted arm axle box A, connecting rod is sheathed in compact heap by draw-in groove, further, can between nut and compact heap, pad be set.
One end of compact heap is the compression end for contacting with pivoted arm axle box A, and the other end is support end; On base 1, be provided with support column 8, the top of support column 8 and the support end at the bottom of compact heap offset.
As shown in Figure 1, support column 8 is arranged between hold down gag 2 and locating dowel 4; Also can be arranged at other positions, as shown in Figures 2 and 3, support column 8 is arranged at hold down gag 2 away from a side of locating dowel 4.The particular location of support column 8 is determined according to the actual processing dimension of pivoted arm axle box A, at this, introduces no longer one by one and all within protection domain.
For the ease of carrying, the pivoted arm axle box processing and positioning device that the embodiment of the present invention provides also comprises the lifting bolt 9 that is arranged at base 1.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a pivoted arm axle box processing and positioning device, is characterized in that, comprising:
Base (1), described base is provided with mounting-positioning holes on (1);
Be arranged at described base (1) upper, for the locating dowel (4) of the shock absorber installing hole of positioning arm formula axle box (A);
Be arranged at described base (1) upper, for supporting described pivoted arm axle box (A) away from the supporting seat (3) of one end of described shock absorber installing hole;
Be arranged at described base (1) near one end of described supporting seat (3), for compressing described pivoted arm axle box (A) away from the hold down gag (2) of one end of shock absorber installing hole;
Be arranged at described base (1) upper, for locating described pivoted arm axle box (A) away from the location stop post (5) of one end of described shock absorber installing hole.
2. pivoted arm axle box processing and positioning device as claimed in claim 1, is characterized in that, described location stopper posts (5) is telescopic to be arranged on described base (1).
3. pivoted arm axle box processing and positioning device as claimed in claim 1, is characterized in that, also comprises and is arranged at described base (1) above, for the bolt (6) being threaded with described pivoted arm axle box A.
4. pivoted arm axle box processing and positioning device as claimed in claim 3, is characterized in that, also comprises and being arranged between described bolt (6) and described supporting seat (3), for the adjusting seat (7) of the horizontal centering of described pivoted arm axle box (A).
5. pivoted arm axle box processing and positioning device as claimed in claim 4, is characterized in that, described adjusting seat (6) comprises and is fixedly installed on the supporting seat on described base (1) and is arranged at the clamp screw lever apparatus on described supporting seat;
The quantity of described clamp screw lever apparatus is two, and its orientation orientation with described supporting seat (3) perpendicular to described bolt (6).
6. pivoted arm axle box processing and positioning device as claimed in claim 5, is characterized in that, described supporting seat and described base (1) are bolted;
Described supporting seat and described base (1) are located by alignment pin.
7. pivoted arm axle box processing and positioning device as claimed in claim 1, is characterized in that, described hold down gag (2) comprises the connecting rod that is arranged on described base (1), be sheathed on compact heap on described connecting rod and with the nut of described connecting rod threaded engagement.
8. pivoted arm axle box processing and positioning device as claimed in claim 7, is characterized in that, described compact heap has the draw-in groove passing for described connecting rod.
9. pivoted arm axle box processing and positioning device as claimed in claim 7 or 8, is characterized in that, one end of described compact heap is the compression end for contacting with described pivoted arm axle box (A), and the other end is support end;
On described base (1), be provided with support column (8), the top of described support column (8) and the support end at the bottom of described compact heap offset.
10. pivoted arm axle box processing and positioning device as claimed in claim 1, is characterized in that, also comprises the lifting bolt (9) that is arranged at described base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724419.7A CN103692244B (en) | 2013-12-24 | 2013-12-24 | Crane-type shaft box processing and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724419.7A CN103692244B (en) | 2013-12-24 | 2013-12-24 | Crane-type shaft box processing and positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103692244A true CN103692244A (en) | 2014-04-02 |
| CN103692244B CN103692244B (en) | 2017-01-11 |
Family
ID=50353995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724419.7A Active CN103692244B (en) | 2013-12-24 | 2013-12-24 | Crane-type shaft box processing and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103692244B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034542A (en) * | 2014-06-23 | 2014-09-10 | 常州华德机械有限公司 | Fatigue test tool for high-speed train bogie journal box |
| CN104907960A (en) * | 2015-06-15 | 2015-09-16 | 鹰普（中国）有限公司 | Rocker arm detection fixture |
| CN107838714A (en) * | 2017-11-01 | 2018-03-27 | 中车长江铜陵车辆有限公司 | A kind of borehole positioning apparatus of rail vehicle truck pivoted arm |
| CN110732972A (en) * | 2019-11-19 | 2020-01-31 | 中国航发贵州黎阳航空动力有限公司 | positioning method and positioning block |
| CN112059653A (en) * | 2020-09-15 | 2020-12-11 | 湖北三环锻造有限公司 | Clamp system of steering straight pull rod arm with disc part structure |
| CN113369921A (en) * | 2021-06-21 | 2021-09-10 | 长春中车轨道车辆有限公司 | EMUs axle box node spot facing work frock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5746135A (en) * | 1995-11-08 | 1998-05-05 | General Electric Company | Self-steering railway truck |
| CN202144023U (en) * | 2011-07-05 | 2012-02-15 | 中国北车集团大同电力机车有限责任公司 | Fixture used for axle box body of electric locomotive |
| CN102825477A (en) * | 2012-09-12 | 2012-12-19 | 南车洛阳机车有限公司 | Machining tooling of axle hanging box of locomotive |
| CN103419037A (en) * | 2013-08-29 | 2013-12-04 | 南车南京浦镇车辆有限公司 | Once-processing tool of shaft housing |
| CN203751714U (en) * | 2013-12-24 | 2014-08-06 | 南车青岛四方机车车辆股份有限公司 | Rotating arm type axle box body processing and positioning device |
-
2013
- 2013-12-24 CN CN201310724419.7A patent/CN103692244B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5746135A (en) * | 1995-11-08 | 1998-05-05 | General Electric Company | Self-steering railway truck |
| CN202144023U (en) * | 2011-07-05 | 2012-02-15 | 中国北车集团大同电力机车有限责任公司 | Fixture used for axle box body of electric locomotive |
| CN102825477A (en) * | 2012-09-12 | 2012-12-19 | 南车洛阳机车有限公司 | Machining tooling of axle hanging box of locomotive |
| CN103419037A (en) * | 2013-08-29 | 2013-12-04 | 南车南京浦镇车辆有限公司 | Once-processing tool of shaft housing |
| CN203751714U (en) * | 2013-12-24 | 2014-08-06 | 南车青岛四方机车车辆股份有限公司 | Rotating arm type axle box body processing and positioning device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034542A (en) * | 2014-06-23 | 2014-09-10 | 常州华德机械有限公司 | Fatigue test tool for high-speed train bogie journal box |
| CN104907960A (en) * | 2015-06-15 | 2015-09-16 | 鹰普（中国）有限公司 | Rocker arm detection fixture |
| CN107838714A (en) * | 2017-11-01 | 2018-03-27 | 中车长江铜陵车辆有限公司 | A kind of borehole positioning apparatus of rail vehicle truck pivoted arm |
| CN110732972A (en) * | 2019-11-19 | 2020-01-31 | 中国航发贵州黎阳航空动力有限公司 | positioning method and positioning block |
| CN112059653A (en) * | 2020-09-15 | 2020-12-11 | 湖北三环锻造有限公司 | Clamp system of steering straight pull rod arm with disc part structure |
| CN113369921A (en) * | 2021-06-21 | 2021-09-10 | 长春中车轨道车辆有限公司 | EMUs axle box node spot facing work frock |
| CN113369921B (en) * | 2021-06-21 | 2022-09-20 | 长春中车轨道车辆有限公司 | EMUs axle box node hole processing frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103692244B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103692244A (en) | Crane-type shaft box processing and positioning device | |
| CN103692245A (en) | Crane-type shaft box processing and positioning device | |
| CN204504586U (en) | A kind of ammeter box case weld clamping and fixing device | |
| CN103658762B (en) | The radial drill precise holes fixture of a kind of linear cylindrical class part | |
| CN107498285B (en) | High-precision assembly device for assembly line | |
| CN203471389U (en) | Boring positioning fixture | |
| CN104759796B (en) | Three station mechanical hands of condenser elastic step nut fitting machine | |
| CN204868119U (en) | Planer -type milling machine | |
| CN203751714U (en) | Rotating arm type axle box body processing and positioning device | |
| CN203679781U (en) | Turning positioning device for bent pipe flange | |
| CN107309461B (en) | Main chord member end hole processing machine for tower body | |
| CN103438842A (en) | Detecting device of engine cylinder cover holes | |
| CN203665118U (en) | Machining and positioning device of rotating arm type axle box body | |
| CN202985123U (en) | Clamping positioning device for shaft and machine tool with the same | |
| CN104014852A (en) | Fixture for machining holes at different angles in same surface and machining method | |
| CN209737083U (en) | Marine air compressor machine gear box frock | |
| CN106736765A (en) | A kind of angle steel fixture | |
| CN203062360U (en) | Fixture with self-adjusting position | |
| CN204855063U (en) | Shock absorber presss from both sides tight automatic centering device and uses device's shock absorber test machine | |
| CN201988958U (en) | High-speed five-shaft machining tooling for impeller | |
| CN103753077A (en) | Positioning device for frame side beam | |
| CN204248434U (en) | The processing unit (plant) of hot half module flow distribution plate runner | |
| CN103862307A (en) | Fixture capable of self-adjusting position | |
| CN208246854U (en) | A kind of terminal-collecting machine holder device | |
| CN204123302U (en) | A kind of piston retention mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |