GB713274A - Method and apparatus for fabricating sheet metal railroad cars - Google Patents
Method and apparatus for fabricating sheet metal railroad carsInfo
- Publication number
- GB713274A GB713274A GB336352A GB336352A GB713274A GB 713274 A GB713274 A GB 713274A GB 336352 A GB336352 A GB 336352A GB 336352 A GB336352 A GB 336352A GB 713274 A GB713274 A GB 713274A
- Authority
- GB
- United Kingdom
- Prior art keywords
- car
- jig
- beams
- framework
- welding
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Automatic Assembly (AREA)
Abstract
713,274. Making railroad cars. AMERICAN CAR & FOUNDRY CO. Feb. 8, 1952, No. 3363/52. Classes 83 (2) and 83 (4) A method of assembling the component parts of a railroad car on a rail assembly line, Figs. 1- 4, comprises rolling a pair of wheeled trucks 5 onto the line, fixing an underframe to the trucks, applying the component parts of the car to the underframe and each other by tackwelding at different stations S1-S6 along the line, and continuously welding the tacked together portions of the car in a series of rotary jigs, B, in which the car is turned so that all of the continuous welding is done from above in the direction of gravity. , At station S6 spacer devices 21 are applied to accurately maintain the width of the top of the car during further travel on the assembly line, and comprise clamps engaging the side walls and adjustable rod means extending between the clamps. Also at this station is located a stationary framework comprising girders 22-24, Figs. 3 and 18, for forcing the side units into squared-up position for tack welding. The framework carries beams 25 having rollers engaging the girders 22 and vertically movable by an electric winch 27 and counterweighted by weights 31. The beams 25, one on each side of the car, carry hydraulic clamping devices 34, Fig. 21, supported on rollers 28 from the beam and clamped into position by wrenches 39<SP>1</SP>. Air lines to the jack cylinders. 36 connect with manifolds 43, 44 on the underside of the beam. Final continuous welding of the car takes place at stations S7-9, Figs. 4, 6, 7, 8 and 11, at each station, the car being held in a jig B rotatable by an electric motor 113 driving shafts 114 to actuate cables 61. Each jig comprises a framework having end sections 52, 53, 53<SP>1</SP> and longitudinally and transversely extending beams 54-59, counterweighted at 174, and mounting a fixture in which the car is clamped for final welding. The fixture comprises columns 65, cross girders 66, and clamp-carrying beams 67 and may be adjusted longitudinally of the framework to suit different car lengths. The beams 67, preferably two on each side of framework 67, preferably two on eachside of the car, are transversely adjustable, sliding on the cross girders 66 and shoes 48 bearing on the beams 57, and carry vertically adjustable clamps for clamping the car squarely in the jig. The clamps include a lower member 71 and a pivoted C clamp 72 having shoes 73, 74. Each beam 67 has two similar jacking devices for transverse shifting thereof, each device comprising a rod 78, Figs. 12 and 17, held at one end in an anchor member 80 on the beam and having a worm portion extending through a casing on a beam 65. The worm is driven through shafting and gearing from an air motor 93, one at each end of the structure, and a four-way valve operated by a handle 101 controls the motors. The handle is also automatically actuated at the limit of retraction of the beams by a mechanism comprising racks and gears 102, 104, 107, 108, which move a control rod 109 vertically on movement of the beams 67. A roller 111 is carried by the rod 109 in a position to move the handle 101 to shutoff position when the limit of retraction has been reached. The control rod also actuates a switch in the circuit of the motor 113 to ensure that the jig cannot be rotated when the car is unclamped. To positively locate the jig in its normal position during loading or unloading of a car hydraulic plunger rods 115 engage recesses in the end ring structures and actuate a switch to prevent operation of the motor 113 while the jig is so locked. Limit switches are controlled by cams on one end section to prevent overtravel of the jig in its rotation to welding position. Other manually operated switches allow of jogging the jig.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB336352A GB713274A (en) | 1952-02-08 | 1952-02-08 | Method and apparatus for fabricating sheet metal railroad cars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB336352A GB713274A (en) | 1952-02-08 | 1952-02-08 | Method and apparatus for fabricating sheet metal railroad cars |
Publications (1)
Publication Number | Publication Date |
---|---|
GB713274A true GB713274A (en) | 1954-08-11 |
Family
ID=9756898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB336352A Expired GB713274A (en) | 1952-02-08 | 1952-02-08 | Method and apparatus for fabricating sheet metal railroad cars |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB713274A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102101225A (en) * | 2010-12-14 | 2011-06-22 | 南车南京浦镇车辆有限公司 | Positively arranged tire for bottom frame of railway vehicle |
CN103659101A (en) * | 2012-09-26 | 2014-03-26 | 中国北车集团大同电力机车有限责任公司 | Clamp |
CN104942503A (en) * | 2015-06-04 | 2015-09-30 | 南通星源仪器设备制造有限公司 | TGHB cabinet frame robot welding rack |
-
1952
- 1952-02-08 GB GB336352A patent/GB713274A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102101225A (en) * | 2010-12-14 | 2011-06-22 | 南车南京浦镇车辆有限公司 | Positively arranged tire for bottom frame of railway vehicle |
CN102101225B (en) * | 2010-12-14 | 2013-12-11 | 南车南京浦镇车辆有限公司 | Positively arranged tire for bottom frame of railway vehicle |
CN103659101A (en) * | 2012-09-26 | 2014-03-26 | 中国北车集团大同电力机车有限责任公司 | Clamp |
CN103659101B (en) * | 2012-09-26 | 2015-12-02 | 中国北车集团大同电力机车有限责任公司 | Fixture |
CN104942503A (en) * | 2015-06-04 | 2015-09-30 | 南通星源仪器设备制造有限公司 | TGHB cabinet frame robot welding rack |
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