CN202985120U - Auxiliary supporting device of hydraulic idler wheel - Google Patents
Auxiliary supporting device of hydraulic idler wheel Download PDFInfo
- Publication number
- CN202985120U CN202985120U CN 201320001884 CN201320001884U CN202985120U CN 202985120 U CN202985120 U CN 202985120U CN 201320001884 CN201320001884 CN 201320001884 CN 201320001884 U CN201320001884 U CN 201320001884U CN 202985120 U CN202985120 U CN 202985120U
- Authority
- CN
- China
- Prior art keywords
- valve
- roller
- oil cylinder
- pressure
- oil
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses an auxiliary supporting device of a hydraulic idler wheel. The auxiliary supporting device comprises a rotary worktable and an auxiliary worktable, and is characterized in that idler wheel supporting devices are uniformly distributed on the periphery of the auxiliary worktable; the auxiliary supporting device comprises a base, an idler wheel, an idler wheel shaft, a bearing, an upper bracket, a piston, a piston rod, an oil cylinder cover, a left bracket, a right bracket and a hydraulic control system; the bottom end of the base is fixed on a machine tool foundation; one side of the upper end of the base is fixedly connected with the left bracket and the other side of the upper end of the base is hinged with the right bracket; the base is internally provided with the oil cylinder; the upper end face of the oil cylinder is fixedly provided with the oil cylinder cover; the oil cylinder is internally provided with the piston; the lower end of the piston rod is fixedly connected with the piston and the upper end of the piston rod leans against a piston rod positioning groove; the hydraulic oil cylinder is communicated with a hydraulic driving system through an oil path; one end of the upper bracket is inserted into a height adjusting through hole and the other end of the upper bracket is fixedly connected with the right bracket; the idler wheel is fixed on the idler wheel shaft and the two ends of the idler wheel shaft are respectively and fixedly connected with the upper bracket; and the top end of the idler wheel is in rolling contact with the auxiliary worktable. The auxiliary supporting device disclosed by the utility model has the advantages of capability of supporting by a plurality of points, automatic adjustment, realization of expanded machining and the like.
Description
Technical field
The utility model relates to the heavy duty machine tools technical field, specifically a kind of hydraulic roller wheel auxiliary support apparatus for enlarging the rotary table diameter of work range of work.
Background technology
the existing rotary table auxiliary supporting device of workpiece that enlarges the diameter of work range of work, its general monoblock type casting or Welding Structure of adopting, directly contact with original workbench, fix by T-shaped groove end face, be the back taper divergent shape, this revolution back work table apparatus, although more easily realize on processability of product structure, owing to being overall structure end face location, trace is adjusted more difficult realization after installation, and the structural rigidity of revolution back work table apparatus itself is not enough, to further improving the formation obstacle at the processing work rotating accuracy, in addition, all load all acts on original workbench, in the certain situation of original workbench maximum load amount, when the processing work diameter is increased, weight further increases the formation yoke.the applicant has applied for that at 2010-12-2 the patent No. is 2010105704864 for this reason, patent name is the patent of invention of auxiliary supporting device of workpiece, and authorized, it comprises rotary table, auxiliary table and roller supporting device, auxiliary table is provided with the radial location hole, auxiliary table passes the radial location hole through bolt and is fixedly connected with rotary table, and auxiliary table and rotary table concentric, the auxiliary table periphery is laid with roller supporting device, roller supporting device is by spiral lift, supporting seat, roller shaft, bearing and roller form, spiral lift is arranged on the lathe ground, the spiral lift upper end is fixedly connected with supporting seat, the supporting seat top is provided with groove, be provided with roller in groove, roller is fixedly connected with roller shaft on being fixed on supporting seat through bearing, roll with auxiliary table and contact in the roller top, its deficiency is: complex structure, trace is adjusted the multiple spot manual leveling after installation, workload is large, dynamics is grasped inaccurate.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, is easy to assemble, is convenient to dismantle the hydraulic roller wheel auxiliary support apparatus of multi-point support, adjusting automatically, realization expansion processing but provide a kind of.
The technical scheme that its technical problem that solves the utility model adopts is:
a kind of hydraulic roller wheel auxiliary support apparatus, comprise rotary table, auxiliary table, auxiliary table is provided with the radial location hole, auxiliary table passes the radial location hole through bolt and is fixedly connected with rotary table, and auxiliary table and rotary table concentric, it is characterized in that the auxiliary table periphery is laid with roller supporting device, it comprises base, roller, roller shaft, bearing, upper bracket, piston, piston rod, oil cylinder cover, left socle, right support and hydraulic control system, described upper bracket one end is provided with the guiding square, the centre is provided with roller through hole is installed, center, upper bracket side is provided with the roller shaft installing hole, upper bracket lower end one side is provided with the piston rod detent, described left socle center is provided with highly regulates through hole, highly regulating through hole matches with the width of guiding square, the base lower end is fixed on the lathe ground, upper end one side is fixedly connected with left socle, opposite side and right support are hinged, be provided with oil cylinder in the base adjacent with left socle, the oil cylinder upper surface is fixed with oil cylinder cover, be provided with piston in oil cylinder, piston rod passes the oil cylinder cover lower end and is fixedly connected with piston, the piston rod detent that upper end and upper bracket lower surface are provided with is inconsistent, oil cylinder is connected with fluid power system through oil circuit, upper bracket one end is regulated in through hole through the height that the guiding square inserts left socle, the other end is fixedly connected with right support, the roller at upper bracket middle part is installed in through hole and is provided with roller, roller is fixed on roller shaft, the roller shaft installing hole two ends that roller shaft passes on upper bracket are fixedly connected with upper bracket through bearing respectively, roll with auxiliary table and contact in the roller top, reach power attenuation little, and can share largely the workpiece load that rotary table bears, dynamic accuracy impact on rotary table is less, the diameter of work range of work and the maximum load amount of rotary table have significantly been increased, improved the machining accuracy of large-diameter workpiece, when auxiliary table rotates, driving roller rotates freely around roller shaft, make the auxiliary table periphery form multi-point support, regulator solution force feed input quantity of oil cylinder in the base is come the lifting of driven plunger, realize the lifting of roller on short transverse, reach the effect of auxiliary table multi-point leveling.
the utility model can be in hydraulic control system oil pump and the oil circuit pipeline between the base oil cylinder on be provided with fluid pressure drive device, fluid pressure drive device comprises the hand stop valve I, the hand stop valve II, the pressure switch I, the pressure switch II, check valve, pressure-reducing valve, three position three-way change valve, three position four-way directional control valve, the bidirectional hydraulic control check valve, accumulator and safety pressure-limiting valve, the pressure hydraulic fluid port of oil pump is provided with pressure switch I and check valve successively, be beneficial to monitor the pressure oil of oil-out, the oil-in of base oil cylinder is provided with the pressure switch II, be beneficial to monitor the unloading pressure of base oil cylinder, three position three-way change valve and three position four-way directional control valve are connected in parallel on oil circuit pipeline between pressure switch I and pressure switch II, pressure oil is shunted after pressure switch I and check valve, one branch's oil circuit is connected with the pressure switch II through three position three-way change valve, one branch's oil circuit is through pressure-reducing valve, three position four-way directional control valve and bidirectional hydraulic control check valve are connected with the pressure switch II, another branch's oil circuit is connected with accumulator through manual stop valve I, with convenient, the hydraulic oil of accumulator is filled it up with, be provided with hand stop valve II and safety pressure-limiting valve between hand stop valve I and accumulator, hand stop valve and safety pressure-limiting valve are in parallel, so that safety pressure-limiting valve is limited in maximum allowble pressure with energy storage pressure.
The utility model is owing to adopting said structure, but has the assembling of being easy to, is convenient to the dismounting multi-point support, automatically regulates, realizes the advantage such as expansion processing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the top view of Fig. 1.
Fig. 3 is the perspective view of welding body.
Fig. 4 is the structural representation of auxiliary table.
Fig. 5 is the connection diagram of auxiliary table.
Fig. 6 is the structural representation of roller supporting device cutaway view.
Fig. 7 is the cutaway view of A-A in Fig. 6.
Fig. 8 is the cutaway view of B-B in Fig. 6.
Fig. 9 is the structural representation of the another kind of top view embodiment of Fig. 1.
Figure 10 is the structural representation of fluid pressure drive device in the utility model.
Reference numeral: auxiliary table 1, hydraulic roller wheel bracing or strutting arrangement 2, radial location hole 3, base 4, upper bracket 5, roller shaft 6, bearing 7, roller 8, piston 9, piston rod 10, oil cylinder cover 11, left socle 12, locating surface 13, bracing frame 14, annular support surface 15, location-plate 16, welding body 17, length extension device 18, pressure switch I 19, check valve 20, pressure-reducing valve 21, three position four-way directional control valve 22, bidirectional hydraulic control check valve 23, pressure switch II 24, hand stop valve 25, hand stop valve 27, accumulator 26, safety pressure-limiting valve 28, two-bit triplet reversal valve 29, right support 30, guiding square 31.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
as shown in drawings, a kind of hydraulic roller wheel auxiliary support apparatus, comprise rotary table, auxiliary table 1, auxiliary table 1 is provided with radial location hole 3, auxiliary table 1 passes radial location hole 3 through bolt and is fixedly connected with rotary table, and auxiliary table 1 and rotary table concentric, auxiliary table 1 periphery is laid with roller supporting device 2, it comprises base 4, roller 8, roller shaft 6, bearing 7, upper bracket 5, piston 9, piston rod 10, oil cylinder cover 11, left socle 12 and right support 30, described upper bracket 5 one ends are provided with guiding square 31, the centre is provided with roller through hole is installed, upper bracket 5 centers, side are provided with the roller shaft installing hole, upper bracket 5 lower end one sides are provided with the piston rod detent, described left socle 12 centers are provided with highly regulates through hole, highly regulating through hole matches with the width of guiding square 31, base 4 lower ends are fixed on the lathe ground, upper end one side is fixedly connected with left socle 12, opposite side and right support 30 are hinged, be provided with oil cylinder in the base 4 adjacent with left socle 12, the oil cylinder upper surface is fixed with oil cylinder cover 11, be provided with piston 9 in oil cylinder, piston rod 10 passes oil cylinder cover 11 lower ends and is fixedly connected with piston 9, piston rod 10 detents that upper end and upper bracket 5 lower surfaces are provided with are inconsistent, oil cylinder is connected with fluid power system through oil circuit, upper bracket 5 one ends are regulated in through hole through the height that guiding square 31 inserts left socle 12, the other end is fixedly connected with right support 30, the roller at upper bracket 5 middle parts is installed in through hole and is provided with roller 8, roller 8 is fixed on roller shaft 6, the roller shaft installing hole two ends that roller shaft 6 passes on upper bracket 5 are fixedly connected with upper bracket 5 through bearing 7 respectively, roll with auxiliary table 1 and contact in roller 8 tops, reach power attenuation little, and can share largely the workpiece load that rotary table bears, dynamic accuracy impact on rotary table is less, the diameter of work range of work and the maximum load amount of rotary table have significantly been increased, improved the machining accuracy of large-diameter workpiece, when auxiliary table 1 rotates, driving roller 8 rotates freely around roller shaft 6, make auxiliary table 1 periphery form multi-point support, regulator solution force feed input quantity of oil cylinder in the base 4 is come the lifting of driven plunger 9, realize the lifting of roller 8 on short transverse, reach the effect of auxiliary table 1 multi-point leveling.
the utility model can be in hydraulic control system oil pump and the oil circuit pipeline between base 4 oil cylinders on be provided with fluid pressure drive device, fluid pressure drive device comprises hand stop valve I 25, hand stop valve II 27, pressure switch I 19, pressure switch II 24, check valve 20, pressure-reducing valve 21, three position three-way change valve 29, three position four-way directional control valve 22, bidirectional hydraulic control check valve 23, accumulator 26 and safety pressure-limiting valve 28, the pressure hydraulic fluid port of oil pump is provided with pressure switch I and check valve 20 successively, be beneficial to monitor the pressure oil of oil-out, the oil-in of base 4 oil cylinders is provided with pressure switch II 24, be beneficial to monitor the unloading pressure of base 4 oil cylinders, three position three-way change valve 29 and three position four-way directional control valve 22 are connected in parallel on oil circuit pipeline between pressure switch I 19 and pressure switch II 24, pressure oil is shunted after pressure switch I 19 and check valve 20, one branch's oil circuit is connected with pressure switch II 24 through three position three-way change valve 29, one branch's oil circuit is through pressure-reducing valve 21, three position four-way directional control valve 22 and bidirectional hydraulic control check valve 23 are connected with pressure switch II 24, another branch's oil circuit is connected with accumulator 26 through manual stop valve I 25, with convenient, the hydraulic oil of accumulator 26 is filled it up with, be provided with hand stop valve II 27 and safety pressure-limiting valve 28 between hand stop valve I 25 and accumulator 26, hand stop valve 27 and safety pressure-limiting valve 28 parallel connections, so that safety pressure-limiting valve 28 with accumulator 26 pressure limit at maximum allowble pressure.
auxiliary table 1 in the utility model is by at least two welding bodies 17 conglobate workbench of docking shape, welding body 17 comprises locating surface 13, bracing frame 14, annular support surface 15 and location-plate 16, be radial bracing frame 14 and the radial location endoporus 3 of being laid with on locating surface 13, welding body 17 is fixedly connected with rotary table through the radial location hole 3 that bolt passes that locating surface 13 is provided with, two adjacent bracing frames 14 of welding body 17 are fixedly connected with through bolt, bracing frame 14 bottom surfaces, outer end are fixedly connected with annular support surface 15, adjacent supports frame 14 outer ends are fixedly connected with through location-plate 16, location-plate 16 intersects with annular support surface 15 and is fixedly connected with, hydraulic roller wheel bracing or strutting arrangement 2 rolls through roller 8 tops and annular support surface 15 bottom surfaces and contacts, reach and alleviate rotary table weight, be easy to assembling, easy-to-dismount effect.
The utility model can be provided with length extension device 18 on bracing frame 14, length extension device 18 comprises that 2T shape grooved screw and 3 extends frame, and extending bracket is by on T-shaped grooved screw stuck-at-１ auxiliary table, to realize the expansion processing to the larger diameter workpiece.
Two adjacent bracing frame 14 side correspondences of welding body 17 on auxiliary table 1 in the utility model are provided with locating hole, are provided with locating piece in locating hole, reach convenient, convenient, the accurate effect of assembling.
Implementation process of the present utility model: the auxiliary table 1 after docking is completed is mounted on original workbench, utilizes endoporus to coordinate radial location, and axial location is made in the lower surface, is connected fastening with rotary table by bolt; The uniform hydraulic roller wheel bracing or strutting arrangement 2 in the coarse adjustment outside and auxiliary table 1 lower end annular support surface 15 close contacts; Level meter is placed in respectively auxiliary table 1 upper surface outer circumference each position that distributes, recording level instrument reading, the hydraulic roller wheel bracing or strutting arrangement 2 that confirmation need adjust is realized the trace adjustment to auxiliary table 1, until till auxiliary table 1 leveling.
The concrete process of adjusting the hydraulic roller wheel bracing or strutting arrangement is: auxiliary table 1 rotates, driving roller 8 rotates freely around roller shaft 6, make auxiliary table 1 periphery form multi-point support, regulator solution force feed input quantity of oil cylinder in the base 4 is come the lifting of driven plunger 9, at first, then pressure oil reach three position four-way directional control valve 22 from the interface G branch check valve 20 of at first flowing through, and the pressure oil force value at interface G place is by 19 monitoring of pressure switch I.when auxiliary table 1 work, can connect three position four-way directional control valve 22 and three position three-way change valve 29 is placed in left position, pressure oil flow in base 4 oil cylinders by interface H and oil circuit pipeline through the dual hydraulic control one-way valve 23 of hydraulic control, driven plunger 9 rises, piston rod 10 is with upper bracket 5 jack-up, upper bracket 5 is done the straight line rising through the guiding square along highly regulating through hole, the roller 8 that drives on upper bracket 5 rises, realized the lifting of roller 8 on short transverse, reach the effect of auxiliary table 1 multi-point leveling, when auxiliary table 1 work stops, three position four-way directional control valve 22 should be reached on location right, while three position three-way change valve 29 is the retainer belt electricity condition still, three position four-way directional control valve 22 oil-out A pass into hydraulic oil, can be by opening the check valve 23 on the right, and hydraulic oil is released from the base oil cylinder, interface I utilizes a tube connector to be connected with accumulator 26, opening hand stop valve 25 fills it up with the interior hydraulic oil of accumulator 26, in order to get rid of residual pressure, before hydraulic system is started working, must open hand stop valve 27, safety pressure-limiting valve 28 is limited in maximum allowble pressure with accumulator pressure, when lathe emergency power off situation occurs when, three position four-way directional control valve 22 and three position three-way change valve 29 dead electricity, three position four-way directional control valve 22 and reversing solenoid valve reset on mark position, can in time pressure oil be entered in base 4 oil cylinders from accumulator 26 like this, make as early as possible the column off-load until cutter withdraws from from workpiece, unloading pressure is by 24 monitoring of pressure switch II.
The beneficial effects of the utility model: adopt above-mentioned auxiliary supporting device of workpiece, increased significantly the diameter of work range of work and the maximum load amount of rotary table, improved the machining accuracy of large-diameter workpiece; Calculate the required pressure that bears of roller by the weighing scale of supporting workpiece, and then calculate the input quantity of hydraulic oil, the automatic ration input of hydraulic oil, make adjustment power quantitative, workload is little, and dynamics is grasped accurately, can be to the plain existing adjustment automatically of the rising-falling tone of auxiliary table, and the lifting exactly is applicable to frequent starting, situation that loading capacity is large.Simple in structure; reliable operation; when realizing moving back and forth with it, can remove deceleration device from, and there is no drive gap; motion steadily; take hydraulic oil as driving medium, element there is lubrication, extended service life; and be easy to realize automatic cycle and automatic overload protection, split-type structural is easy to dismounting, convenient transportation in addition.
Claims (2)
1. hydraulic roller wheel auxiliary support apparatus, comprise rotary table, auxiliary table, auxiliary table is provided with the radial location hole, auxiliary table passes the radial location hole through bolt and is fixedly connected with rotary table, and auxiliary table and rotary table concentric, it is characterized in that the auxiliary table periphery is laid with roller supporting device, it comprises base, roller, roller shaft, bearing, upper bracket, piston, piston rod, oil cylinder cover, left socle, right support and hydraulic control system, described upper bracket one end is provided with the guiding square, the centre is provided with roller through hole is installed, center, upper bracket side is provided with the roller shaft installing hole, upper bracket lower end one side is provided with the piston rod detent, described left socle center is provided with highly regulates through hole, highly regulating through hole matches with the width of guiding square, the base lower end is fixed on the lathe ground, upper end one side is fixedly connected with left socle, opposite side and right support are hinged, be provided with oil cylinder in the base adjacent with left socle, the oil cylinder upper surface is fixed with oil cylinder cover, be provided with piston in oil cylinder, piston rod passes the oil cylinder cover lower end and is fixedly connected with piston, the piston rod detent that upper end and upper bracket lower surface are provided with is inconsistent, hydraulic jack is connected with fluid power system through oil circuit, upper bracket one end is regulated in through hole through the height that the guiding square inserts left socle, the other end is fixedly connected with right support, the roller at upper bracket middle part is installed in through hole and is provided with roller, roller is fixed on roller shaft, the roller shaft installing hole two ends that roller shaft passes on upper bracket are fixedly connected with upper bracket through bearing respectively, roll with auxiliary table and contact in the roller top.
2. a kind of hydraulic roller wheel auxiliary support apparatus according to claim 1, it is characterized in that oil pump in hydraulic control system and the oil circuit pipeline between the base oil cylinder are provided with fluid pressure drive device, fluid pressure drive device comprises the hand stop valve I, the hand stop valve II, the pressure switch I, the pressure switch II, check valve, pressure-reducing valve, three position three-way change valve, three position four-way directional control valve, the bidirectional hydraulic control check valve, accumulator and safety pressure-limiting valve, the pressure hydraulic fluid port of oil pump is provided with pressure switch I and check valve successively, the oil-in of base oil cylinder is provided with the pressure switch II, three position three-way change valve and three position four-way directional control valve are connected in parallel on oil circuit pipeline between pressure switch I and pressure switch II, pressure oil is shunted after pressure switch I and check valve, one branch's oil circuit is connected with the pressure switch II through three position three-way change valve, one branch's oil circuit is through pressure-reducing valve, three position four-way directional control valve and bidirectional hydraulic control check valve are connected with the pressure switch II, another branch's oil circuit is connected with accumulator through manual stop valve I, be provided with hand stop valve II and safety pressure-limiting valve between hand stop valve I and accumulator, hand stop valve and safety pressure-limiting valve are in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001884 CN202985120U (en) | 2012-12-27 | 2013-01-04 | Auxiliary supporting device of hydraulic idler wheel |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220732677 | 2012-12-27 | ||
| CN201220732677.0 | 2012-12-27 | ||
| CN 201320001884 CN202985120U (en) | 2012-12-27 | 2013-01-04 | Auxiliary supporting device of hydraulic idler wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202985120U true CN202985120U (en) | 2013-06-12 |
Family
ID=48556338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001884 Withdrawn - After Issue CN202985120U (en) | 2012-12-27 | 2013-01-04 | Auxiliary supporting device of hydraulic idler wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202985120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028956A (en) * | 2012-12-27 | 2013-04-10 | 威海华东重工有限公司 | Auxiliary support device for hydraulic roller |
| CN113878396A (en) * | 2021-11-15 | 2022-01-04 | 中国水利水电夹江水工机械有限公司 | Large-inertia revolving body auxiliary driving device and method |
-
2013
- 2013-01-04 CN CN 201320001884 patent/CN202985120U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028956A (en) * | 2012-12-27 | 2013-04-10 | 威海华东重工有限公司 | Auxiliary support device for hydraulic roller |
| CN103028956B (en) * | 2012-12-27 | 2014-10-29 | 威海华东重工有限公司 | Auxiliary support device for hydraulic roller |
| CN113878396A (en) * | 2021-11-15 | 2022-01-04 | 中国水利水电夹江水工机械有限公司 | Large-inertia revolving body auxiliary driving device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205271641U (en) | Device is joined in marriage in sealed associate research fellow of conical surface with ration loading function | |
| CN205600225U (en) | Improve device of axle type part hole machining precision | |
| CN103817551B (en) | The square cutter platform backup positioning and clamping mechanism of lathe | |
| CN205927679U (en) | Supplementary support fixture of pipe cutting | |
| CN105458869A (en) | Conical face sealing pair grinding fit device with quantitative loading function | |
| CN202985120U (en) | Auxiliary supporting device of hydraulic idler wheel | |
| CN103028956B (en) | Auxiliary support device for hydraulic roller | |
| CN201009092Y (en) | Machine tool center frame with self-compensation device | |
| CN104174874A (en) | Using method of pipe beveling machine | |
| CN106573353A (en) | Automatic workpiece centering apparatus and automatic centering method | |
| CN204123012U (en) | The special positioner of a kind of welding | |
| CN206966354U (en) | A kind of multi-functional straightener | |
| CN210269128U (en) | Ultra-high-speed rock crushing hob service life assessment test bed | |
| CN202070964U (en) | Internal grinding machine for bearing rings | |
| CN205170268U (en) | Big stroke coil of strip lifting means | |
| CN202278362U (en) | Assembling tool of adjustable shaft workpiece | |
| CN204148822U (en) | A kind of fluid bearing pressing machine | |
| CN203565690U (en) | Piston roller rivet device of gear and rack type steering machine | |
| CN202661270U (en) | Vertical automatic regulation device for hydraulic lifting test bed of tractor | |
| US3736840A (en) | Worktable extension and supporting structure | |
| CN201596921U (en) | Heavy-load automatic shift hydraulic clamp bottom seat | |
| CN102545491B (en) | Hydraulic press used for stator press-mounting and rotor shaft-compressing of motor | |
| CN104476800A (en) | Hydraulic type rotating pressing machine for standard test specimen | |
| CN205956683U (en) | Can self -adjusting engineering machine tool with high -accuracy rotatory support | |
| CN205734086U (en) | A kind of motor stamping machining positioning mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |