CN202943111U - Correcting device for bottom door of wagon - Google Patents
Correcting device for bottom door of wagon Download PDFInfo
- Publication number
- CN202943111U CN202943111U CN 201220658850 CN201220658850U CN202943111U CN 202943111 U CN202943111 U CN 202943111U CN 201220658850 CN201220658850 CN 201220658850 CN 201220658850 U CN201220658850 U CN 201220658850U CN 202943111 U CN202943111 U CN 202943111U
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- bottom door
- roller
- fixed
- slide rail
- wheel
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Abstract
The utility model provides a correcting device for a bottom door of a wagon. The correcting device comprises a base, a plurality of upright posts, at least one longitudinal beam, a transverse sliding beam capable of moving on the longitudinal beams, a sliding trolley capable of moving on the transverse sliding beam, a pressure oil cylinder used for pressing the bottom door, a bearing table used for placing the bottom door and a clamping device used for fixing the bottom door, wherein the bottoms of the upright posts and the bearing table are all fixed on the base; the two ends of the longitudinal beams are fixed on the upright posts; and the cylinder body of the pressure oil cylinder is fixed on the sliding trolley. The bottom door is placed and fixed on the bearing table through the clamping device, the pressure oil cylinder moves along the transverse sliding beam together with the sliding trolley, the sliding trolley moves along the longitudinal beams together with the transverse sliding beam, and a pressing block at the head part of the piston rod of the pressure oil cylinder presses any part of the bottom door to complete correction of the bottom door, so that the operation is convenient. The whole correcting device is convenient to move and mount and is lower in maintenance cost.
Description
Technical field
The utility model relates to the railway freight-car manufacturing technology, relates in particular to a kind of railway freight-car bottom door apparatus for correcting.
Background technology
A kind of as railway freight-car of open-top car opens the door at the end, owing to being provided with the bottom door mechanism of being convenient to switch on its underframe, online unloading when being particularly suitable for the railway transportation ore, therefore be subject to the comparatively favor of developed country of mining industry, due to the outlet of bottom door composition as goods, its switch is comparatively frequent, so its workmanship is had relatively high expectations, usually require the flatness error after the bottom door assembly welding to be not more than 2mm, but welding deformation is unavoidable, so must take measures, bottom door is formed and correct, therefore need to adopt special device that bottom door is formed and correct.
Rectification for end opening door railway freight-car bottom door, prior art adopts gantry car formula apparatus for correcting usually, gantry car 1 and walking rails 2 are set on the ground, gantry car 1 adopts motor 4 to drive, and is provided with the oil pressure cylinder 5 that bottom door is corrected on gantry car 1, and oil pressure cylinder 5 can slide on the roof crossbeam of gantry, bottom door is placed on platform 3, gantry car traveling is to the position that bottom door need to be corrected, and starting pressure oil cylinder 5 is started working, thereby realizes the rectification to bottom door.Referring to Fig. 1, Fig. 2.
The scheme of prior art has following shortcoming: comparison in equipment is heavy, is inconvenient to operate, labour intensity is large; Equipment need to set in advance gantry car walking rails on the ground, is not easy to resettlement and the installation of device; Equipment needs motor-driven, consumes the energy, and the manufacturing of equipment, maintenance cost are relatively high.
The utility model content
The utility model provides a kind of railway freight-car bottom door apparatus for correcting, is used for overcoming defective of the prior art, realize handled easily, be convenient to resettlement and install, and energy savings, maintenance cost is low.
The railway freight-car bottom door apparatus for correcting that the utility model provides, this device comprise base, many root posts, at least one longitudinal beam, can horizontal sliding beam mobile on longitudinal beam, can be on horizontal sliding beam mobile sliding machine, be used for the compacting bottom door oil pressure cylinder, be used for placing the plummer of bottom door and be used for the fixedly clamping device of bottom door; Described column bottom and plummer all are fixed on described base, and described longitudinal beam two ends all are fixed on described column, and the cylinder body of described oil pressure cylinder is fixed on described sliding machine.
Further, described sliding machine is comprised of little kickstand, travelling wheel and directive wheel forms and consists of, and wherein little kickstand is a U-shaped frame; Described U-shaped frame bottom surface is connected with oil pressure cylinder, and travelling wheel forms and the directive wheel composition all is located at described U-shaped frame two sides; Described horizontal sliding beam both sides have horizontal slide rail, and described travelling wheel composition contacts with this horizontal slide rail end face, and described directive wheel composition contacts with described horizontal slide rail lateral surface.
Particularly, described travelling wheel forms and comprises by securing member and be fixed on the traveling wheel shaft on described U-shaped frame two sides and the travelling wheel that is rotationally connected with this traveling wheel shaft, and described travelling wheel outer rim contacts with described horizontal slide rail end face.
Wherein, described directive wheel forms and comprises by securing member and be fixed on the guide wheel shaft on described U-shaped frame two sides and the directive wheel that is rotationally connected with this guide wheel shaft, and described directive wheel outer rim contacts with described horizontal slide rail lateral surface.
Further, described longitudinal beam both sides are respectively equipped with vertical slide rail, described horizontal sliding beam two ends hang on described vertical slide rail by a carriage respectively, this carriage comprises that the movable pulley that at least two groups are oppositely arranged forms, each movable pulley forms by wheel shaft with movable pulley that described wheel shaft is rotationally connected and consists of, wheel shaft is arranged on mount pad by securing member, and described mount pad is fixed on horizontal sliding beam, and described movable pulley outer rim contacts with described longitudinal beam end face.
Wherein, described plummer is made of many supporting legs and the framework platform that is fixed on described supporting leg top, the described framework platform two ends transfer roller that outwards overhang, described framework platform hollow part is provided with rise and fall roller, the end face of described transfer roller is higher than described framework platform end face, described rise and fall roller can be between the end face of described framework platform end face and transfer roller lifting moving.
Particularly, described rise and fall roller and transfer roller include two roller-ways that be arranged in parallel, every described roller-way includes at least one roller-way seat and forms with the roller wheel that at least one is arranged on described roller-way seat, and described roller wheel forms and comprises the running roller that is fixed on the rolling axle on described roller-way seat and is rotatably connected with described rolling axle by securing member.
Wherein, be fixed on described base by a lift cylinder or hoist cylinder bottom described rise and fall roller.
Further, described clamping device comprises that a bottom is fixed on inverted L-shaped connecting lever and the hold-down bolt group on this inverted L-shaped connecting lever of installing on described plummer.
The railway freight-car bottom door apparatus for correcting that the utility model provides, bottom door is placed on plummer, by clamping device, bottom door is fixed on plummer, oil pressure cylinder moves along horizontal sliding beam with sliding machine and realizes transverse shifting, sliding machine with horizontal sliding beam longitudinally beam move and realize vertically moving, can realize any one part on bottom door is suppressed by oil pressure cylinder piston rod head briquetting, thereby complete the rectification of bottom door, easy to operate, whole apparatus for correcting is convenient to resettlement and is installed, and maintenance cost is lower.
Description of drawings
Fig. 1 is the front view of prior art apparatus for correcting;
Fig. 2 is the left view of Fig. 1;
The front view of the apparatus for correcting that Fig. 3 provides for the utility model embodiment;
Fig. 4 is longitudinally beam and the laterally cutaway view of sliding beam junction in Fig. 3;
Fig. 5 is the mounting structure schematic diagram of sliding machine and oil pressure cylinder;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the mounting structure schematic diagram of horizontal sliding beam and longitudinal beam;
Fig. 8 is the left view of Fig. 7.
The specific embodiment
As shown in Figure 3, Figure 4, the railway freight-car bottom door apparatus for correcting that the utility model embodiment provides, this device comprise base 10, many root posts 20, at least one longitudinal beam 30, can horizontal sliding beam 40 mobile on longitudinal beam 30, can be on horizontal sliding beam 40 mobile sliding machine 50, be used for the compacting bottom door oil pressure cylinder 5, be used for placing the plummer 60 of bottom door and be used for the fixedly clamping device 70 of bottom door; Column 20 bottoms and plummer 60 all are fixed on described base 10, and longitudinal beam 30 two ends all are fixed on described column 20, and the cylinder body of oil pressure cylinder 5 is fixed on sliding machine 50.
Owing to will bottom door being corrected, both plastic deformation will occur in the bottom door material, the stress that bottom door that external force imposes on produces must be greater than the strength degree of its material itself, can calculate the size that should apply external force by finite element analysis software, consider the operating position of other products and leave certain safe clearance, the pressure that oil pressure cylinder can be provided is selected in 26.5t.
Oil pressure cylinder is connected on sliding machine 50 by rear flange, sliding machine can be along pressing horizontal sliding beam 40 to slide, laterally sliding beam 40 length directions are set as the x axle, same laterally sliding beam 40 can slide on the longitudinal beam 30 on column 20 tops by slide mechanism, longitudinal beam 30 length directions are set as the y axle, so just realized that oil pressure cylinder correcting moving freely on x on the plane, y axle both direction, avoided the rectification blind area.By calculating the smallest cross-sectional that can determine the oil pressure cylinder sliding beam, make weight the lightest, be convenient to manually-operated.Select the mode of slip sill bolt oil cylinder traveling to avoid the occupation of land space of traveling gantry car large, equipment is heavy needs to adopt motor-driven defective, economical and practical and reached same purpose.
As the preferred embodiment of above-described embodiment, as Fig. 5, shown in Figure 6, sliding machine by dolly support 51, travelling wheel form 52 and directive wheel form 53 and consist of, wherein dolly support 51 is a U-shaped frame; U-shaped frame bottom surface is connected with oil pressure cylinder 5, travelling wheel form 52 and directive wheel form 53 and all be located at U-shaped frame two sides; Laterally sliding beam 40 both sides have horizontal slide rail 41, and travelling wheel forms 52 and contacts with these horizontal slide rail 41 end faces, and directive wheel forms 53 and contacts with described horizontal slide rail 41 lateral surfaces.Travelling wheel forms 52 and comprises by securing member and be fixed on the traveling wheel shaft 521 on described U-shaped frame two sides and the travelling wheel 522 that is rotationally connected with this traveling wheel shaft 521, and travelling wheel 522 outer rims contact with described horizontal slide rail 41 end faces.Directive wheel forms 53 and comprises by securing member and be fixed on the guide wheel shaft 531 on described U-shaped frame two sides and the directive wheel 532 that is rotationally connected with this guide wheel shaft 531, walks directive wheel 532 outer rims and contacts with horizontal slide rail 41 lateral surfaces.
the U-shaped frame forms 52 by travelling wheel and hang on the horizontal slide rail 41 of horizontal sliding beam 40 both sides, traveling wheel shaft 521 center lines are parallel to above horizontal slide rail 41, guide wheel shaft 531 center lines are perpendicular to laterally above slide rail 41, travelling wheel forms can be along plane traveling on the horizontal slide rail 31 of horizontal sliding beam 30 both sides, directive wheel is arranged on dolly support side, in sliding machine traveling process, directive wheel and horizontal slide rail lateral surface touch scrolling, prevent that on the one hand the travelling wheel composition from coming off from horizontal slide rail, prevent on the other hand little kickstand and laterally slide rail lateral surface contact friction, produce frictional resistance, the operation of obstruction sliding machine.
As Fig. 2, Fig. 7, shown in Figure 8, longitudinal beam 30 both sides are respectively equipped with vertical slide rail 31, laterally sliding beam 40 two ends hang on vertical slide rail 31 by a carriage 42 respectively, this carriage 42 comprises that the movable pulley that at least two groups are oppositely arranged forms, each movable pulley forms by wheel shaft 421 with movable pulley 422 that wheel shaft 421 is rotationally connected and consists of, wheel shaft 421 is arranged on mount pad 423 by securing member, mount pad 423 is fixed on horizontal sliding beam 40, and movable pulley 422 outer rims contact with vertical slide rail 31 end faces.Also can arrange on mount pad 423 with the suitable directive wheel in vertical slide rail 31 outsides and form 53, this directive wheel forms 53 can adopt the structure identical with directive wheel composition on sliding machine, directive wheel forms 53 and comprises the directive wheel 532 that is fixed on the guide wheel shaft 531 on mount pad 423 and is rotationally connected with this guide wheel shaft 531 by securing member, and directive wheel 532 outer rims contact with vertical slide rail 31 lateral surfaces.
mount pad 423 is placed in longitudinal beam 30 both sides, and mount pad 423 bottoms are fixed on horizontal sliding beam 40, wheel shaft 421 and guide wheel shaft 531 are installed on the vertically-arranged face, the center line of wheel shaft 421 is with vertically parallel above slide rail 31, guide wheel shaft 531 center lines are with vertically vertical above slide rail, laterally sliding beam 40 can slide on longitudinal beam 30 by carriage 42, movable pulley 422 is vertically sliding on slide rail 31, directive wheel 532 and vertical slide rail 31 lateral surface touch scrollings, the anti-skidding wheel forms from vertically coming off to slide rail on the one hand, prevent on the other hand horizontal sliding beam 40 and vertically slide rail 31 lateral surface contact frictions, produce frictional resistance, hinder the operation of horizontal sliding beam 40.
As shown in Figure 3, Figure 4, for the ease of bottom door is placed on plummer, set up live-roller gear 7 and rise and fall roller 8, plummer 60 is made of many supporting legs 61 and the framework platform 62 that is fixed on supporting leg 61 tops, the framework platform 62 two ends transfer roller 7 that outwards overhang, the framework platform hollow part is provided with rise and fall roller 8, and the end face of transfer roller 7 is higher than framework platform 60 end faces, rise and fall roller 8 can be between the end face of framework platform 60 end faces and transfer roller 7 lifting moving.Rise and fall roller 8 and transfer roller 7 include two roller-ways that be arranged in parallel, every roller-way includes at least one roller-way seat 91 and forms 9 with the roller wheel that at least one is arranged on roller-way seat 91, and roller wheel forms 9 and comprises the running roller 93 that is fixed on the rolling axle 92 on roller-way seat 91 and is rotatably connected with rolling axle 92 by securing member.Rise and fall roller 8 bottoms are fixed on base 10 by a lift cylinder 81 or hoist cylinder.Clamping device 70 comprises that a bottom is fixed on inverted L-shaped connecting lever 71 and the hold-down bolt group 72 on this inverted L-shaped connecting lever 71 of installing on plummer.
At first start the lift cylinder 81 of rise and fall roller 8, rise and fall roller 8 is raised up to its end face concordant with transfer roller 7 end faces; It is on transfer roller 7 and rise and fall roller 8 that bottom door is sent to this TV station position from a upper position via the transition roller-way, is again to operate lift cylinder 81 after directly over framework platform 62 rise and fall roller 8 is fallen to correct position; Bottom door drops down onto on framework platform 62, is fastened on framework platform 62 by inverted L-shaped connecting lever 71 and hold-down bolt group 72 bottom doors; The starting pressure oil cylinder is corrected bottom door; Whether qualifiedly detect the bottom door flatness after correcting, unclamp clamping device 70 after qualified; Start lift cylinder 81 jack-up rise and fall rollers 8, bottom door is pushed to next platform position along rise and fall roller 8, transfer roller 7 and transition roller-way.
Carrying platform is the important stressed member in correcting process, be connected with base by bolt bottom its supporting leg, import and export both sides at material loading are connected with the transfer roller that conveying work pieces is used, the middle part arranges to transmit uses rise and fall roller, rise and fall roller adopts cylinder to drive lifting, transfer roller all is connected on framework platform 62 by slotted hole, is convenient to adjust to satisfy different product transmit needs.Clamping device is connected with carrying platform by T-slot, prevents from the bottom door correcting process that bottom door is upspring after stressed to hurt sb.'s feelings, and has played the effect of security protection.
This device has blocking, modularization, unitized advantage.For example between carrying platform and base, transfer roller and carrying platform, all adopted bolt fastening structure between base and column, column and longitudinal beam; Transmit between rise and fall roller and carrying platform and adopted the slotted hole connected mode, clamp between yellow paper and carrying platform and adopted the T-slot connected mode.This apparatus for correcting is by detachable, flexible connection modes such as a large amount of utilization bolts hole, slotted hole, T-slots, be convenient to adjustment and the assembling of device, as long as the needs that in the given size scope, different workpieces is corrected just can be satisfied in the corresponding parts of adjustment position, change the line of production and reduced set up cost in the cycle having shortened product, improved productivity effect.This apparatus for correcting is a platform position of whole piece bottom door production line, because whole production line adopts continuous productive process, bottom door need to be set between two of up and down produce the platform position for this reason to be transmitted and uses the transition roller-way, the transition roller-way is comprised of roller devices and framework, transition roller-way structure is identical with transfer roller, the running roller height is all 900mm mutually with apparatus for correcting transfer roller height, is convenient to bottom door and produces smooth and easy transmission between the platform position two of up and down.Consider that two of up and down produce the platform position and need to reserve the safety operation space, transition roller-way length setting is 1500mm, and the roller-way width is slightly less than bottom door width handled easily.Because the bottom door maximum weight is no more than 200kg, the operator can promote workpiece easily on roller, so the transition roller-way has adopted non-power to transmit, has reduced cost, has saved the energy.This device has adopted independently base, need not embedded foundation, is not subjected to the irremovable restriction of embedded foundation, is convenient to layout and the installation of production line.
The technical scheme that the present embodiment provides satisfies the needs that the railway freight-car bottom door is corrected, and adopts modularization, blocking, unitized structure, can satisfy simultaneously the needs that multiple bottom door becomes to correct; Adopted independently base frame, need not embedded foundation, not limited by embedded foundation; Operating cylinder movable part weight is less, and manual both can the promotion operates, and need not to install running motor, reduced energy consumption, improved productivity effect.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. railway freight-car bottom door apparatus for correcting, it is characterized in that, this device comprise base, many root posts, at least one longitudinal beam, can horizontal sliding beam mobile on longitudinal beam, can be on horizontal sliding beam mobile sliding machine, be used for the compacting bottom door oil pressure cylinder, be used for placing the plummer of bottom door and be used for the fixedly clamping device of bottom door; Described column bottom and plummer all are fixed on described base, and described longitudinal beam two ends all are fixed on described column, and the cylinder body of described oil pressure cylinder is fixed on described sliding machine.
2. railway freight-car bottom door apparatus for correcting according to claim 1, is characterized in that, described sliding machine is comprised of little kickstand, travelling wheel and directive wheel forms and consists of, and wherein little kickstand is a U-shaped frame; Described U-shaped frame bottom surface is connected with oil pressure cylinder, and travelling wheel forms and the directive wheel composition all is located at described U-shaped frame two sides; Described horizontal sliding beam both sides have horizontal slide rail, and described travelling wheel composition contacts with this horizontal slide rail end face, and described directive wheel composition contacts with described horizontal slide rail lateral surface.
3. railway freight-car bottom door apparatus for correcting according to claim 2, it is characterized in that, described travelling wheel forms and comprises by securing member and be fixed on the traveling wheel shaft on described U-shaped frame two sides and the travelling wheel that is rotationally connected with this traveling wheel shaft, and described travelling wheel outer rim contacts with described horizontal slide rail end face.
4. railway freight-car bottom door apparatus for correcting according to claim 2, it is characterized in that, described directive wheel forms and comprises by securing member and be fixed on the guide wheel shaft on described U-shaped frame two sides and the directive wheel that is rotationally connected with this guide wheel shaft, and described directive wheel outer rim contacts with described horizontal slide rail lateral surface.
5. railway freight-car bottom door apparatus for correcting according to claim 1, it is characterized in that, described longitudinal beam both sides are respectively equipped with vertical slide rail, described horizontal sliding beam two ends hang on described vertical slide rail by a carriage respectively, this carriage comprises that the movable pulley that at least two groups are oppositely arranged forms, each movable pulley forms by wheel shaft with movable pulley that described wheel shaft is rotationally connected and consists of, wheel shaft is arranged on mount pad by securing member, described mount pad is fixed on horizontal sliding beam, and described movable pulley outer rim contacts with described longitudinal beam end face.
6. according to claim 1-5 arbitrary described railway freight-car bottom door apparatus for correcting, it is characterized in that, described plummer is made of many supporting legs and the framework platform that is fixed on described supporting leg top, the described framework platform two ends transfer roller that outwards overhang, described framework platform hollow part is provided with rise and fall roller, the end face of described transfer roller is higher than described framework platform end face, described rise and fall roller can be between the end face of described framework platform end face and transfer roller lifting moving.
7. railway freight-car bottom door apparatus for correcting according to claim 6, it is characterized in that, described rise and fall roller and transfer roller include two roller-ways that be arranged in parallel, every described roller-way includes at least one roller-way seat and forms with the roller wheel that at least one is arranged on described roller-way seat, and described roller wheel forms and comprises the running roller that is fixed on the rolling axle on described roller-way seat and is rotatably connected with described rolling axle by securing member.
8. railway freight-car bottom door apparatus for correcting according to claim 6, is characterized in that, described rise and fall roller bottom is fixed on described base by a lift cylinder or hoist cylinder.
9. according to claim 1-5 arbitrary described railway freight-car bottom door apparatus for correcting, is characterized in that, described clamping device comprises that a bottom is fixed on inverted L-shaped connecting lever and the hold-down bolt group on this inverted L-shaped connecting lever of installing on described plummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658850 CN202943111U (en) | 2012-12-04 | 2012-12-04 | Correcting device for bottom door of wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658850 CN202943111U (en) | 2012-12-04 | 2012-12-04 | Correcting device for bottom door of wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202943111U true CN202943111U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220658850 Expired - Fee Related CN202943111U (en) | 2012-12-04 | 2012-12-04 | Correcting device for bottom door of wagon |
Country Status (1)
| Country | Link |
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| CN (1) | CN202943111U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552344A (en) * | 2013-10-24 | 2014-02-05 | 镇江中化聚氨酯工业设备有限公司 | Modularized manufacture method of lamination conveyor |
| CN106540995A (en) * | 2016-12-06 | 2017-03-29 | 中车西安车辆有限公司 | A kind of railway freight-car covered truck door adjusting device |
| CN108500086A (en) * | 2018-03-09 | 2018-09-07 | 宣化钢铁集团有限责任公司 | A kind of truck side door prosthetic device |
| CN108620807A (en) * | 2017-03-17 | 2018-10-09 | 浙江正泰太阳能科技有限公司 | A kind of solar panel frame angle seam and difference of height prosthetic device |
| CN113198874A (en) * | 2021-04-22 | 2021-08-03 | 中船黄埔文冲船舶有限公司 | Wallboard structure fillet weld angle deformation orthotic devices |
| CN115228976A (en) * | 2022-07-15 | 2022-10-25 | 山东大学 | Flexible correcting unit suitable for lath-shaped part |
-
2012
- 2012-12-04 CN CN 201220658850 patent/CN202943111U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552344A (en) * | 2013-10-24 | 2014-02-05 | 镇江中化聚氨酯工业设备有限公司 | Modularized manufacture method of lamination conveyor |
| CN106540995A (en) * | 2016-12-06 | 2017-03-29 | 中车西安车辆有限公司 | A kind of railway freight-car covered truck door adjusting device |
| CN108620807A (en) * | 2017-03-17 | 2018-10-09 | 浙江正泰太阳能科技有限公司 | A kind of solar panel frame angle seam and difference of height prosthetic device |
| CN108500086A (en) * | 2018-03-09 | 2018-09-07 | 宣化钢铁集团有限责任公司 | A kind of truck side door prosthetic device |
| CN108500086B (en) * | 2018-03-09 | 2024-04-05 | 宣化钢铁集团有限责任公司 | Railway open wagon side door repairing device |
| CN113198874A (en) * | 2021-04-22 | 2021-08-03 | 中船黄埔文冲船舶有限公司 | Wallboard structure fillet weld angle deformation orthotic devices |
| CN115228976A (en) * | 2022-07-15 | 2022-10-25 | 山东大学 | Flexible correcting unit suitable for lath-shaped part |
| CN115228976B (en) * | 2022-07-15 | 2023-11-03 | 山东大学 | Flexible correction device suitable for lath-shaped parts |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20161204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |