CN102744547B - Pressing tool for assembling truck body - Google Patents
Pressing tool for assembling truck body Download PDFInfo
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- CN102744547B CN102744547B CN201210258927.6A CN201210258927A CN102744547B CN 102744547 B CN102744547 B CN 102744547B CN 201210258927 A CN201210258927 A CN 201210258927A CN 102744547 B CN102744547 B CN 102744547B
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- jack
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Abstract
The invention discloses a pressing tool for assembling a truck body. The pressing tool comprises an upright device, a pressing hook, a jack device and a workpiece locating device, wherein the upright device comprises uprights and bases, which are positioned on the two sides; the top ends of the uprights are provided with anti-rebound devices; guide devices and lug seats are arranged on the inner sides of the uprights; cylinders are arranged on the outer sides of the uprights; connecting devices matched with the guide devices are arranged on the inner sides of the guide devices; upper ends of the connecting devices are hinged with pressing hooks; pin holes and pin shafts I are arranged on the lug seats; the pin holes are matched with the pin shafts I; force amplifying levers, which rotate relative to the pin shafts I, are arranged on the pin shafts I; upper long circular holes and lower long circular holes are respectively formed in two ends of the force amplifying levers, wherein the upper long circular holes are hinged with connecting holes at lower ends of the connecting devices by pin shafts II; the lower long circular holes are hinged with connecting holes on end part joints of cylinder piston rods by pin shafts III; jack devices and workpiece locating devices are arranged on the inner sides of lower ends of the uprights; and the bases of the uprights, bottom surfaces of the jack devices and bottom surfaces of the workpiece locating devices are respectively connected with foundation embedded plates.
Description
Technical field
The present invention relates to railway freight-car technical field, particularly relate to the truck body assembling compression tooling that open-top car, hopper wagon etc. are made up of underframe, side wall and headwall.
Background technology
Truck body is made up of underframe, side wall and headwall etc., in order to make side wall and underframe closely connected and ensure that group to size accurately, must impose severe pressure in underframe lower end and side wall upper end during car body assembling.Design the jack device of suitable lifting capacity for this reason in underframe lower end, when jack upwards pushes up underframe, easily make car body run-off the straight, for prevent car body run-off the straight make again side wall and underframe closely connected, corresponding pressure must be applied in side wall upper end and compress side wall downwards.Prior art is: adopt cantilever support in side wall upper end, cantilever support hangs a jack, cantilever is forwarded to operating position during work, jack is made to compress curb girder downwards by manual adjustment, this mode operates very inconvenient, workman must stand in column upper end, inwardly visits body operation, very dangerous.Hold down gag adopts oil gear simultaneously, and its shortcoming is: must have the devices such as a set of oil pump station, oil cylinder, pipeline, joint, and this covering device very easily produces oil leakage phenomenon, and easy breaking out of fire on leaked pasta fallen by the welding slag splashed in welding place; Due to leakage of oil, welding slag is not easily swept, and causes working environment very poor, and oil gear cost of manufacture is higher than pneumatic means a lot.The employing electric clamping device also had, its shortcoming is: because the strength of bounce-back easily causes motor and the anti-strength of electric pushrod very greatly, make motor damage.
Summary of the invention
Object of the present invention be exactly in order to solve prior art exist employing cantilever support, compress curb girder downwards by manual adjustment jack, inconvenient operation, dangerous, adopt oil gear easily to produce leakage of oil, easily breaking out of fire and cost of manufacture higher than pneumatic means, and electric clamping device motor hold flimsy problem; A kind of truck body assembling compression tooling is provided; Have structure simple, easy to assembly, simple to operate, reliability is high, the advantage that cost of manufacture is low, conveniently can realize the hold down gag of plurality of specifications workpiece assembling, side wall and underframe is closely connected and the position of assembling is accurate when ensureing that side wall and underframe are assembled.
To achieve these goals, the present invention adopts following technical scheme:
A kind of truck body assembling compression tooling, comprise stand column device, compress hook, jack device, Working piece positioning device, stand column device comprises column and the base of both sides, and column is connected with base, and described column top is provided with anti-rebounding device, column inner top side is provided with guider, be provided with ear seat inside column, be provided with cylinder seat board outside column, cylinder seat board is provided with cylinder; Be provided with the jockey be mated inside guider, described jockey upper end is hinged with compression hook; Ear seat is provided with the pin-and-hole and bearing pin I that match, bearing pin I is provided with the boosting lever rotated corresponding thereto, the two ends of boosting lever are respectively equipped with slotted hole, lower slotted hole, the connecting hole wherein going up slotted hole and jockey lower end is hinged by pin shaft II, and the connecting hole on lower slotted hole and cylinder piston rod end-fitting is hinged by pin shaft III; Be provided with jack device, Working piece positioning device inside column lower end, the bottom surface of the base of column, the bottom surface of jack device, Working piece positioning device is connected with basic embedded board respectively, and basic embedded board and ground level are in same plane.
Described compression hook comprises the connecting portion, gib head, the balancing weight that are connected, is respectively equipped with stiffener in connecting portion both sides, and the cross section of connecting portion is cross-shaped configuration, and connecting portion coordinates with the inwall of guider.
Described anti-rebounding device comprises two risers and a base plate, and base plate is connected with column by bolt.
Described balancing weight lower end is provided with circular arc I, and the upper end of anti-rebounding device riser is provided with circular arc II, and the circular arc I of balancing weight lower end coordinates with the upper end circular arc II of anti-rebounding device riser.
Described guider is four pieces of sheet material assembly weldings, the inner box-structure for cavity, interior sheet material is wherein connected with column inner top side by bolt, the height and position of interior sheet material at top is lower than the position of other sheet material, and four inwalls and the cross section of box-structure are that cross connecting portion coordinates.
Described jockey comprises middle sheet material assembly welding structure, upper pin seat and downside pin axle bed, the cross section of middle sheet material assembly welding structure is cross, the base plate of the outer face of cross section, the base plate of upper pin seat, downside pin axle bed all coordinates with the inwall of guider and moves up and down in guider along inwall, upper pin seat is hinged with the connecting portion compressing hook, and downside pin axle bed and boosting lever are hinged.
Described trade union college positioner comprises locating surface, positioning seat, and locating surface lower end is connected with positioning seat by bolt, and positioning seat is connected with basic embedded board.Positioning seat is I-steel weldment.
Described stand column device is the frame structure of I-shaped steel section welding.
Described cylinder is foot-rest type cylinder, and foot rest is connected with column by bolt.
Described jack device comprises screw jack and jack pad assembly.
Operation principle of the present invention: the present invention includes stand column device, compress hook, jack device, Working piece positioning device, stand column device comprises column and the base of both sides, column is connected with base, described column top is provided with anti-rebounding device, and column inner top side is provided with guider, is provided with ear seat inside column, be provided with cylinder seat board outside column, cylinder seat board is provided with cylinder; Be provided with the jockey be mated inside guider, described jockey upper end is hinged with compression hook; Ear seat is provided with the pin-and-hole and bearing pin I that match, bearing pin I is provided with the boosting lever rotated corresponding thereto, the two ends of boosting lever are respectively equipped with slotted hole, lower slotted hole, the connecting hole wherein going up slotted hole and jockey lower end is hinged by pin shaft II, and the connecting hole on lower slotted hole and cylinder piston rod end-fitting is hinged by pin shaft III; Be provided with jack device, Working piece positioning device inside column lower end, the bottom surface of the base of column, the bottom surface of jack device, Working piece positioning device is connected with basic embedded board respectively, and basic embedded board and ground level are in same plane.
Described compression hook comprises the connecting portion, gib head, the balancing weight that are connected, is respectively equipped with stiffener in connecting portion both sides, and the cross section of connecting portion is cross-shaped configuration, and connecting portion coordinates with the inwall of guider.Connecting portion play the guiding role in guider; Gib head is used for workpiece pressing; Coordinate with the facade of anti-rebounding device riser outside balancing weight, ensure that compressing hook moves up and down smoothly, during workpiece pressing, the pressure of bottom jack passes to compression hook by workpiece, anti-rebounding device is delivered to again by the balancing weight compressed on hook, prevent from compressing hook upwards to rebound, ensure that workpiece group welding position is accurate.
Described anti-rebounding device comprises two risers and a base plate, and base plate is connected with column by bolt.When compressing hook workpiece pressing, the pressure of bounce-back is passed to two risers by the balancing weight compressed on hook, position when these two risers can ensure workpiece assembly welding is accurate, and there is enough intensity, the strength of bounce-back can be withstood, can also ensure to compress hook smooth opening.
Described balancing weight lower end is provided with circular arc I, and the upper end of anti-rebounding device riser is provided with circular arc II, and the circular arc I of balancing weight lower end coordinates with the upper end circular arc II of anti-rebounding device riser.The circular arc at two places coordinates, and ensures that compressing hook moves up and down, during workpiece pressing smoothly, the pressure of bottom jack passes to compression hook by workpiece, be delivered to anti-rebounding device by the balancing weight compressed on hook again, prevent compressing hook and upwards rebound, ensure that workpiece group welding position is accurate better.
Described guider is four pieces of sheet material assembly weldings, the inner box-structure for cavity, interior sheet material is wherein connected with column inner top side by bolt, the height and position of interior sheet material at top is lower than the position of other sheet material, and four inwalls and the cross section of box-structure are that cross connecting portion coordinates.Four inwalls of box-structure all play guide effect, and the height and position of interior sheet material is low, be convenient to compress hook opens.
Described jockey comprises middle sheet material assembly welding structure, upper pin seat and downside pin axle bed, the cross section of middle sheet material assembly welding structure is cross, the base plate of the outer face of cross section, the base plate of upper pin seat, downside pin axle bed all coordinates with the inwall of guider and moves up and down in guider along inwall, upper pin seat is hinged with the connecting portion compressing hook, and downside pin axle bed and boosting lever are hinged.
During assembling, first the underframe of car body is placed on trade union college positioner, again the side wall of car body is placed on underframe, open the hand rotary valve of cylinder, cylinder piston rod stretches out, pass through boosting lever, jockey, compress hook and side wall is pressed to underframe, the balancing weight compressing hook props up on the riser of anti-rebounding device, at this moment hold down gag can ensure the Precise Installation Position of side wall, due to side wall, the amount of deflection that underframe itself produces, make to produce gap between side wall and underframe, in order to ensure side wall and underframe closely connected, lifting power in underframe lower end by jack device, underframe is upwards pushed up, underframe is made to remove the side wall that reclines, carry out assembly welding, when underframe is upwards pushed up, anti-rebounding device serves and ensures to compress the constant effect of hook compacted position, be about to compress hook as a kind of fixing positioner, the Product Precision of assembling is made to have had guarantee.After having assembled, by the jack return of underframe lower end, the hand rotary valve of rotation cylinder, cylinder piston rod is regained, make compression hook increase by boosting lever, jockey, when the balancing weight lower end compressing hook rises to the upper end higher than the riser of anti-rebounding device, compress hook and automatically open, balancing weight lower end is sliding to be leaned against on the riser inclined-plane of anti-rebounding device, is hung out by workpiece.
Beneficial effect of the present invention:
1. adopt and compress hook part, wherein connecting portion play the guiding role in guider, and gib head is used for workpiece pressing, coordinate with the facade of anti-rebounding device riser outside balancing weight, ensure that compressing hook moves up and down smoothly, prevent compressing hook and upwards rebound, workpiece group welding position is accurate;
2. adopt anti-rebounding device intensity high, the strength of bounce-back can be withstood, can ensure to compress hook smooth opening;
3. compressing hook moves up and down smoothly to adopt balancing weight to ensure, bottom during workpiece pressing, the pressure of jack is delivered to compression hook by workpiece, be delivered to anti-rebounding device by the balancing weight compressed on hook again, prevent compressing hook and upwards rebound, ensure that workpiece group welding position is accurate better;
4. adopt guider, four inwalls of box-structure all play guide effect, and the height and position of interior sheet material at top, lower than the position of other sheet material, is convenient to compress hook and is opened;
5. adopt and there is the hold down gag of anti-rebounding device, ensure that the accuracy of package size, reach the compression effect of noticeable effort with little active force, reach compress be hooked in compression, carrying out smoothly, without catching phenomenon when opening;
6. structure is simple, and easy and simple to handle, safe and reliable, cost of manufacture is low, is particularly useful for large-scale workpiece and needs large pressure compaction assembling procedure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention compresses hook structure schematic diagram;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is anti-rebounding device structural representation of the present invention;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is jockey structural representation of the present invention;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is guider structural representation of the present invention;
Fig. 9 is the top view of Fig. 8;
In figure, 1. compress hook, 2. anti-rebounding device, 3. guider, 4. jockey, 5. boosting lever, 6. cylinder, 7. stand column device, 8. jack device, 9. Working piece positioning device, 10. truck body, 11. columns, 12. basic embedded boards, 13. ear seats, 14. bearing pins I, 15. pin shaft II, 16. pin shaft III, 17. connecting portions, 18. gib heads, 19. balancing weights, 20. stiffeners, 21. risers, 22. base plates, 23. upper pin seats, 24. sheet material assembly welding structures, 25. downside pin axle beds, 26. circular arcs II, 27. circular arcs I, sheet material in 28..
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the present invention will be further described.
A kind of truck body assembling compression tooling, composition graphs 1 to Fig. 9, comprises stand column device 7, compress hook 1, jack device 8, Working piece positioning device 9, stand column device 7 comprises column 11 and the base of both sides, column 11 is connected with base, described column 11 top is provided with anti-rebounding device 2, and column 11 inner top side is provided with guider 3, is provided with ear seat 13 inside column 11, be provided with cylinder seat board outside column 11, cylinder seat board is provided with cylinder 6; Be provided with the jockey 4 be mated inside guider 3, described jockey 4 upper end is hinged with compression hook 1; Ear seat 13 is provided with the pin-and-hole and bearing pin I 14 that match, bearing pin I 14 is provided with the boosting lever 5 rotated corresponding thereto, the two ends of boosting lever 5 are respectively equipped with slotted hole, lower slotted hole, the connecting hole wherein going up slotted hole and jockey 4 lower end is hinged by pin shaft II 15, and the connecting hole on lower slotted hole and cylinder piston rod end-fitting is hinged by pin shaft III 16; Column 11 lower end inside is provided with jack device 8, Working piece positioning device 9, and the bottom surface of the base of column 11, the bottom surface of jack device 8, Working piece positioning device 9 is connected with basic embedded board 12 respectively, and basic embedded board 12 and ground level are in same plane.
Described compression hook 1 comprises the connecting portion 17, gib head 18, the balancing weight 19 that are connected, is respectively equipped with stiffener 20 in connecting portion both sides, and the cross section of connecting portion 17 is cross-shaped configuration, and connecting portion 17 coordinates with the inwall of guider 3.Connecting portion 17 play the guiding role in guider 3; Gib head 18 is for workpiece pressing; Coordinate with the facade of anti-rebounding device riser 21 outside balancing weight 19, ensure that compressing hook 1 moves up and down smoothly, during workpiece pressing, the pressure of bottom jack is delivered to by workpiece and compresses hook 1, anti-rebounding device 2 is delivered to again by the balancing weight 19 compressed on hook 1, prevent from compressing hook 1 upwards to rebound, ensure that workpiece group welding position is accurate.
Described anti-rebounding device 2 comprises two risers 21 and a base plate 22, and base plate 22 is connected with column 11 by bolt.When compressing hook 1 workpiece pressing, the pressure of bounce-back is passed to two risers 21 by the balancing weight 19 compressed on hook 1, position when these two risers 21 can ensure workpiece assembly welding is accurate, and there is enough intensity, the strength of bounce-back can be withstood, can also ensure to compress hook 1 smooth opening.
Balancing weight 19 lower end is provided with circular arc I 27, and the upper end of anti-rebounding device riser 21 is provided with circular arc II 26, and the circular arc I 27 of balancing weight 19 lower end coordinates with the upper end circular arc II 26 of anti-rebounding device riser 21.The circular arc at two places coordinates, and ensures that compressing hook 1 moves up and down, during workpiece pressing smoothly, the pressure of bottom jack is delivered to by workpiece and compresses hook 1, be delivered to anti-rebounding device 2 by the balancing weight 19 compressed on hook 1 again, prevent compressing hook 1 and upwards rebound, ensure that workpiece group welding position is accurate better.
Described guider 3 is four pieces of sheet material assembly weldings, the inner box-structure for cavity, interior sheet material 28 is wherein connected with column 11 inner top side by bolt, four inwalls and the cross section of box-structure are that cross connecting portion 17 coordinates, and the height and position of interior sheet material 28 at top is lower than the position of other sheet material.The height and position of interior sheet material 28 is low, be convenient to compress hook opens, and four inwalls of box-structure all play guide effect.
Described jockey 4 comprises middle sheet material assembly welding structure 24, upper pin seat 23 and downside pin axle bed 25, the cross section of middle sheet material assembly welding structure 24 is cross, the base plate of the outer face of cross section, the base plate of upper pin seat 23, downside pin axle bed 25 all coordinates with the inwall of guider 3 and moves up and down in guider 3 along inwall, upper pin seat 23 is hinged with the connecting portion 17 compressing hook 1, and downside pin axle bed 25 and boosting lever 5 are hinged.
Described trade union college positioner 9 comprises locating surface, positioning seat, and locating surface lower end is connected with positioning seat by bolt, and positioning seat is connected with basic embedded board.Positioning seat is I-steel weldment.
The frame structure that described stand column device 7 is welded for I-shaped steel section.
Described cylinder 6 is foot-rest type cylinder, and foot rest is connected with column 11 by bolt.
Described jack device 8 comprises screw jack and jack pad assembly.
During assembling, first the underframe of truck body 10 is placed on trade union college positioner 9, again the side wall of car body is placed on underframe, open the hand rotary valve of cylinder 6, cylinder piston rod stretches out, by boosting lever 5, jockey 4, compress hook 1 and side wall is pressed to underframe, the balancing weight compressing hook 1 props up on the riser of anti-rebounding device 2, at this moment hold down gag can ensure the Precise Installation Position of side wall, due to side wall, the amount of deflection that underframe itself produces, make to produce gap between side wall and underframe, in order to ensure side wall and underframe closely connected, in underframe lower end by the lifting power of jack device 8, underframe is upwards pushed up, underframe is made to remove the side wall that reclines, carry out assembly welding, when underframe is upwards pushed up, anti-rebounding device 2 serves and ensures to compress the constant effect of hook 1 compacted position, be about to compress hook 1 as a kind of fixing positioner, the Product Precision of assembling is made to have had guarantee.After having assembled, by the jack return of underframe lower end, the hand rotary valve of rotation cylinder 6, cylinder piston rod is regained, make compression hook 1 increase by boosting lever 5, jockey 4, when balancing weight 19 lower end compressing hook 1 rises to the upper end higher than the riser 21 of anti-rebounding device 2, compress hook 1 and automatically open, balancing weight 19 lower end is sliding to be leaned against on riser 21 inclined-plane of anti-rebounding device 2, is hung out by workpiece.Center line left-half wherein in Fig. 1 is duty, namely pressure is applied in the top and bottom of two workpiece respectively, ensure that workpiece is closely connected, size is accurate, weld, center line right half part in Fig. 1 is after work completes: respectively at the top and bottom release pressure of two workpiece, ensures that workpiece hangs out smoothly.
By reference to the accompanying drawings the detailed description of the invention of invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (9)
1. a truck body assembling compression tooling, comprise stand column device, compress hook, jack device, Working piece positioning device, described stand column device comprises column and the base of both sides, and column is connected with base, and column top is provided with anti-rebounding device, column inner top side is provided with guider, be provided with ear seat inside column, be provided with cylinder seat board outside column, cylinder seat board is provided with cylinder; Be provided with the jockey be mated inside guider, described jockey upper end is hinged with compression hook; Ear seat is provided with the pin-and-hole and bearing pin I that match, bearing pin I is provided with the boosting lever rotated corresponding thereto, the two ends of boosting lever are respectively equipped with slotted hole, lower slotted hole, the connecting hole wherein going up slotted hole and jockey lower end is hinged by pin shaft II, and the connecting hole on lower slotted hole and cylinder piston rod end-fitting is hinged by pin shaft III; Be provided with jack device, Working piece positioning device inside column lower end, the bottom surface of the base of column, the bottom surface of jack device, Working piece positioning device is connected with basic embedded board respectively, and basic embedded board and ground level are in same plane;
Described compression hook comprises the connecting portion, gib head, the balancing weight that are connected, is respectively equipped with stiffener in connecting portion both sides, and the cross section of connecting portion is cross-shaped configuration, and connecting portion coordinates with the inwall of guider.
2. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described anti-rebounding device comprises two risers and a base plate, and base plate is connected with column by bolt.
3. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described balancing weight lower end is provided with circular arc I, and the upper end of anti-rebounding device riser is provided with circular arc II, and described circular arc I coordinates with circular arc II.
4. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described guider is four pieces of sheet material assembly weldings, the inner box-structure for cavity, interior sheet material is wherein connected with column inner top side by bolt, the height and position of interior sheet material at top is lower than the position of other sheet material, and four inwalls and the cross section of box-structure are that cross connecting portion coordinates.
5. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described jockey comprises middle sheet material assembly welding structure, upper pin seat and downside pin axle bed, the cross section of middle sheet material assembly welding structure is cross, the base plate of the outer face of cross section, the base plate of upper pin seat, downside pin axle bed all coordinates with the inwall of guider and moves up and down in guider along inwall, upper pin seat is hinged with the connecting portion compressing hook, and downside pin axle bed and boosting lever are hinged.
6. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described Working piece positioning device comprises locating surface, positioning seat, and locating surface lower end is connected with positioning seat by bolt, and positioning seat is connected with basic embedded board.
7. truck body assembling compression tooling as claimed in claim 1, is characterized in that, described stand column device is the frame structure of I-shaped steel section welding.
8. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described cylinder is foot-rest type cylinder, and foot rest is connected with column by bolt.
9. truck body assembling compression tooling as claimed in claim 1, it is characterized in that, described jack device comprises screw jack and jack pad assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210258927.6A CN102744547B (en) | 2012-07-25 | 2012-07-25 | Pressing tool for assembling truck body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210258927.6A CN102744547B (en) | 2012-07-25 | 2012-07-25 | Pressing tool for assembling truck body |
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| CN102744547A CN102744547A (en) | 2012-10-24 |
| CN102744547B true CN102744547B (en) | 2015-02-11 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028882B (en) * | 2012-12-20 | 2015-05-20 | 天津新华昌运输设备有限公司 | Tank container frame assembly platform system |
| CN103240556B (en) * | 2013-05-10 | 2015-04-01 | 上汽通用五菱汽车股份有限公司 | Welding fixture for formula racing |
| CN105149839B (en) * | 2015-09-10 | 2017-04-26 | 南车二七车辆有限公司 | Draft sill fish web pressing device for railway freight car |
| CN105598657B (en) * | 2016-02-23 | 2017-12-22 | 中车青岛四方机车车辆股份有限公司 | Particular track pivoted arm fluid-pressure straining device is used in car body assembling |
| CN107520564A (en) * | 2017-08-29 | 2017-12-29 | 张家港凯航通力船用设备有限公司 | A kind of apparatus for welding and positioning of ship deck welding |
| CN108130831B (en) * | 2017-12-26 | 2020-04-24 | 中车长江车辆有限公司 | Assembling device and method for curved box-shaped beam |
| CN112139733B (en) * | 2020-09-14 | 2022-03-29 | 中车长春轨道客车股份有限公司 | Flexible assembly welding clamp for steel structure of railway vehicle body |
| CN112345144B (en) * | 2020-11-24 | 2022-04-01 | 日照山太飞机工程股份有限公司 | Jack load testing device and testing method thereof |
| CN114473313B (en) * | 2022-04-02 | 2022-07-01 | 唐山龙泉机械有限公司 | Automatic welding production line of saddle type tailor-welding traction seat robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3078123B2 (en) * | 1992-07-31 | 2000-08-21 | 株式会社ヒロテック | Spot welding method and spot welding device |
| KR20040033702A (en) * | 2002-10-15 | 2004-04-28 | 현대자동차주식회사 | Car body panel fixing device |
| JP4951406B2 (en) * | 2007-05-11 | 2012-06-13 | 株式会社コガネイ | Positioning clamp device |
| CN201529883U (en) * | 2009-06-18 | 2010-07-21 | 重庆理工大学 | Special welding fixture for mini-car longitudinal beam |
| CN201437190U (en) * | 2009-06-26 | 2010-04-14 | 上汽通用五菱汽车股份有限公司 | Clamping mechanism for positioning vehicle body tool |
| CN202162519U (en) * | 2011-05-17 | 2012-03-14 | 南方汇通股份有限公司 | Modularized assembling clamp for rail wagon base frame |
| CN102424077B (en) * | 2011-11-30 | 2014-08-27 | 上汽通用五菱汽车股份有限公司 | Multi-vehicle-type main positioning device |
| CN202804524U (en) * | 2012-07-25 | 2013-03-20 | 济南轨道交通装备有限责任公司 | Compressing tool for assembly of freight car bodies |
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| CN102744547A (en) | 2012-10-24 |
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Address after: Huai Village Street Huaiyin District of Ji'nan city of Shandong Province, No. 73 250022 Patentee after: Shandong Zhongche Locomotive Co. Ltd. Address before: Huai Village Street Huaiyin District of Ji'nan city of Shandong Province, No. 73 250022 Patentee before: Jinan Rail Traffic Equipment Co., Ltd. |