CN204381764U - Railway freight-car bottom door axle coaxial welding assembling clamp - Google Patents
Railway freight-car bottom door axle coaxial welding assembling clamp Download PDFInfo
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- CN204381764U CN204381764U CN201420865906.5U CN201420865906U CN204381764U CN 204381764 U CN204381764 U CN 204381764U CN 201420865906 U CN201420865906 U CN 201420865906U CN 204381764 U CN204381764 U CN 204381764U
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- bottom door
- clamping
- fastener
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- axle
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Abstract
The utility model discloses a kind of railway freight-car bottom door axle coaxial welding assembling clamp, comprise workbench, workbench two ends are symmetrically arranged with for clamping processed bottom door axle two ends shaft part clamping-rotating device, be coaxially arranged with at least two cover rolling fasteners between clamping-rotating device, rolling fastener central authorities offer for nested live the circular trepanning of shaft part in the middle of processed bottom door axle; Clamping-rotating device comprises fixing mount pad on the table and passes perpendicularly through mount pad and the rotating shaft parallel with table axis, rotating shaft one end is provided with advancement arm, the rotating shaft other end is provided with rotatable stator, the end face of rotatable stator is provided with catching, and the circular trepanning coaxial line of rotating shaft and rolling fastener is arranged.Clamping-rotating device in the utility model can make rotating welding in axle splicing, increases efficiency, Reducing distortion; The axle welded by this frock can be met the demands in axiality, does not need adjustment, cost-saving.
Description
Technical field
The utility model relates to coaxial splicing field, is specifically related to a kind of railway freight-car bottom door axle coaxial welding assembling clamp.
Background technology
Two methods are mainly taked in the guarantee of current multiaxis splicing axiality, one is take first to splice integrated machine processing for meticulous axle to ensure axiality again, it is then the method guarantee axiality taking postwelding adjustment for general axis, two kinds of methods are all take measures after welding, waste time and energy, even if the mode of adding technology support before adopting assembly welding, distortion can not be eliminated completely, efficiency and effect are all poor, to the normal use of axle with have considerable influence service life.
Hopper wagon occupies larger proportion in railway freight-car, and rise year by year, bottom door ensures that hopper wagon is unloaded normal critical component, and the door-hinge in bottom door composition is exactly the core part of bottom door, bottom door axle docks assembly welding by solid shafting with hollow shaft to form, key technology is exactly the axiality ensureing postwelding solid shafting and hollow shaft, and the axiality of axle all has a great impact the assembling of whole bottom door and application.
The splicing of existing axle and axle adopts rotary type welding tooling, clamp respectively at the two ends of axle, guarantee axiality when only having two axles to splice, but many axles splice together just cannot ensure axiality, at least there is one end is in a free state or the welding completed under semi-constrained state, the free end of axle can be made to deform like this after welding; Illustrate with PN coal hopper car bottom door axle, this vehicle door-hinge is that two solid shaftings and a hollow shaft assembly welding form, the hollow axial length 2.5m of splicing axle, 1 ° of distortion is there is in butt weld place axle center, will produce 43.6mm skew at the other end of axle, this deflection cannot ensure the relative size of each parts in bottom door assembling process.Reason is that axle and axle were not an entirety before assembly welding, even if so the axle center of two ends solid shafting is fixed on same straight line, and the axle center of jackshaft not necessarily with the axle center of two end axles on same straight line, if have gap between solid shafting and hollow shaft during assembling, just may there is deviation in axle center, add follow-up weld heating, and middle axle does not have rigid constraint and produces distortion, solid shafting and hollow shaft axis deviation will be made larger, considerable influence will be produced to follow-up bottom door assembling process.There is following defect in existing frock clamp:
1) poor product quality, follow-up adjustment efficiency is low, cost is high;
2) axiality cannot be ensured after multiaxis assembly welding, impact assembling during bottom door assembling;
3) in use easily there is the accidents such as stuck, fracture through the bottom door axle of adjustment, cause tremendous economic to lose.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of railway freight-car bottom door axle coaxial welding assembling clamp, which solves the distortion produced in many axle splicings, ensure the spliced axiality of ensuring coaxiality many axles of whole axle.
For achieving the above object, a kind of railway freight-car bottom door axle coaxial welding assembling clamp designed by the utility model, comprise workbench, described workbench two ends are symmetrically arranged with for clamping processed bottom door axle two ends shaft part clamping-rotating device, be coaxially arranged with at least two cover rolling fasteners between described clamping-rotating device, described rolling fastener central authorities offer for nested live the circular trepanning of shaft part in the middle of processed bottom door axle; Described clamping-rotating device comprises fixing mount pad on the table and passes perpendicularly through mount pad and the rotating shaft parallel with table axis, described rotating shaft one end is provided with advancement arm, the described rotating shaft other end is provided with rotatable stator, the end face of described rotatable stator is provided with catching, and the circular trepanning coaxial line of described rotating shaft and rolling fastener is arranged.
Further, described rolling fastener comprises fixing pedestal on the table, described pedestal offers semicircular arc groove, supportingly above described semicircular arc groove be provided with semicircular arc fastener, the two ends of described semicircular arc fastener are connected by bolt and pedestal are detachable, and described semicircular arc fastener is corresponding with the semicircular arc groove on pedestal encloses circular trepanning.
Again further, be provided with a pair arc-shaped steel ring in described semicircular arc groove and semicircular arc fastener, the surface of each arc-shaped steel ring offers the parallel roller groove of many axis, is provided with roller in described roller groove.
The beneficial effects of the utility model:
1, the clamping-rotating device in the utility model can make rotating welding in axle splicing, increases efficiency, Reducing distortion;
2, the axle that the utility model is welded by this frock can meet the demands in axiality, does not need adjustment, cost-saving;
3, the utility model freely can change size and the quantity of splicing axle by the size and quantity changing separate type rolling fastener;
4, the separate type rolling fastener in the utility model can be used for the perpendicularity of proof bar supplied materials.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model railway freight-car bottom door axle coaxial welding assembling clamp;
Fig. 2 is the structural representation of clamping-rotating device in Fig. 1;
Fig. 3 is the structural representation of separate type rolling fastener 3 in Fig. 1;
In figure: workbench 1, clamping-rotating device 2, mount pad 2.1, rotating shaft 2.2, advancement arm 2.3, rotatable stator 2.4, catching 2.5, rolling fastener 3, circular trepanning 3.1, pedestal 3.2, semicircular arc groove 3.3, semicircular arc fastener 3.4, bolt 3.5, arc-shaped steel ring 3.6, roller groove 3.61, roller 3.7.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art understand.
As described in Figure: a kind of railway freight-car bottom door axle coaxial welding assembling clamp, comprise workbench 1, described workbench 1 two ends are symmetrically arranged with for clamping processed bottom door axle two ends shaft part clamping-rotating device 2, be coaxially arranged with at least two cover rolling fasteners 3 between described clamping-rotating device 2, described rolling fastener 3 central authorities offer for nested live the circular trepanning 3.1 of shaft part in the middle of processed bottom door axle; Described clamping-rotating device 2 comprise be fixed on mount pad on workbench 1 2.1 and pass perpendicularly through mount pad 2.1 and with the rotating shaft 2.2 of workbench 1 axis being parallel, described rotating shaft 2.2 one end is provided with advancement arm 2.3, described rotating shaft 2.2 other end is provided with rotatable stator 2.4, the end face of described rotatable stator 2.4 is provided with catching 2.5, and described rotating shaft 2.2 is arranged with circular trepanning 3.1 coaxial line of rolling fastener 3.
Rolling fastener 3 comprises the pedestal 3.2 be fixed on workbench 1, described pedestal 3.2 offers semicircular arc groove 3.3, supportingly above described semicircular arc groove 3.3 be provided with semicircular arc fastener 3.4, the two ends of described semicircular arc fastener 3.4 are connected with pedestal 3.2 is detachable by bolt 3.5, and described semicircular arc fastener 3.4 is corresponding with the semicircular arc groove 3.3 on pedestal 3.2 encloses circular trepanning 3.1.
Be provided with a pair arc-shaped steel ring 3.6 in semicircular arc groove 3.3 and semicircular arc fastener 3.4, the surface of each arc-shaped steel ring 3.6 offers the parallel roller groove 3.61 of many axis, is provided with roller 3.7 in described roller groove 3.61.
In actual condition, catching 2.5 also can be fixed axis, and rolling fastener changes overall rolling fastener into, now itself and axial compression is fitted together, then is fixed on platform, can ensure postwelding axiality equally.
In this frock, be applied as example in conjunction with rail way hopper wagon bottom door axle composition, door-hinge consists of two solid shaftings and a hollow shaft assembly welding, and solid shaft assembling is at hollow shaft two ends, and a clamping-rotating device 2 is equipped with motor, and assembling mode is as follows:
First the rotatable stator two solid shaftings being arranged on respectively clamping-rotating device fixedly steps up, the trepanning of two the rolling fasteners 3 hollow shaft put into again is also fixing, adjustment advancement arm 2.3, two solid shaftings are docked with hollow shaft, therebetween preset clearance is 3 ~ 4mm, measurement size, then tack welding fixes solid shafting and hollow shaft, start the motor of clamping-rotating device 2, solid shafting is rotated along axis, and rotary speed is mated with speed of welding, uses welding equipment butt welding position, article two, weld seam can weld simultaneously
Close the motor of clamping-rotating device 2 after welding, unclamp clamping-rotating device 2 and rolling fastener 3, take out door-hinge, namely complete door-hinge and coaxially splice.
In actual mechanical process, if when processed axle is more than three, the above-mentioned course of work of cycling, coaxially splices until complete door-hinge.
Other unspecified part is prior art.Although above-described embodiment has made detailed description to the utility model; but it is only the utility model part embodiment; instead of whole embodiment; people can also obtain other embodiments according to the present embodiment under without creative prerequisite, and these embodiments all belong to the utility model protection domain.
Claims (3)
1. a railway freight-car bottom door axle coaxial welding assembling clamp, comprise workbench (1), it is characterized in that: described workbench (1) two ends are symmetrically arranged with for clamping processed bottom door axle two ends shaft part clamping-rotating device (2), be coaxially arranged with at least two covers rolling fastener (3) between described clamping-rotating device (2), described rolling fastener (3) central authorities offer for nested live the circular trepanning (3.1) of shaft part in the middle of processed bottom door axle, described clamping-rotating device (2) comprise the mount pad (2.1) that is fixed on workbench (1) and pass perpendicularly through mount pad (2.1) and with the rotating shaft (2.2) of workbench (1) axis being parallel, described rotating shaft (2.2) one end is provided with advancement arm (2.3), described rotating shaft (2.2) other end is provided with rotatable stator (2.4), the end face of described rotatable stator (2.4) is provided with catching (2.5), described rotating shaft (2.2) is arranged with circular trepanning (3.1) coaxial line of rolling fastener (3).
2. railway freight-car bottom door axle coaxial welding assembling clamp according to claim 1, it is characterized in that: described rolling fastener (3) comprises the pedestal (3.2) be fixed on workbench (1), described pedestal (3.2) offers semicircular arc groove (3.3), described semicircular arc groove (3.3) top is supporting is provided with semicircular arc fastener (3.4), the two ends of described semicircular arc fastener (3.4) are connected with pedestal (3.2) is detachable by bolt (3.5), described semicircular arc fastener (3.4) is corresponding with the semicircular arc groove (3.3) on pedestal (3.2) encloses circular trepanning (3.1).
3. railway freight-car bottom door axle coaxial welding assembling clamp according to claim 2, it is characterized in that: in described semicircular arc groove (3.3) and semicircular arc fastener (3.4), be provided with a pair arc-shaped steel ring (3.6), the surface of each arc-shaped steel ring (3.6) offers the parallel roller groove (3.61) of many axis, is provided with roller (3.7) in described roller groove (3.61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865906.5U CN204381764U (en) | 2014-12-30 | 2014-12-30 | Railway freight-car bottom door axle coaxial welding assembling clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865906.5U CN204381764U (en) | 2014-12-30 | 2014-12-30 | Railway freight-car bottom door axle coaxial welding assembling clamp |
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| Publication Number | Publication Date |
|---|---|
| CN204381764U true CN204381764U (en) | 2015-06-10 |
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| CN201420865906.5U Active CN204381764U (en) | 2014-12-30 | 2014-12-30 | Railway freight-car bottom door axle coaxial welding assembling clamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014283A (en) * | 2015-08-04 | 2015-11-04 | 苏州吴江春宇电子股份有限公司 | Welding clamp for multifunctional door shaft |
| CN107838571A (en) * | 2017-09-13 | 2018-03-27 | 浙江富春江水电设备有限公司 | Elongated thin-walled hollow axle welder and its welding method |
| CN111250733A (en) * | 2020-02-26 | 2020-06-09 | 浙江富春江水电设备有限公司 | Processing method of overweight long shaft |
-
2014
- 2014-12-30 CN CN201420865906.5U patent/CN204381764U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014283A (en) * | 2015-08-04 | 2015-11-04 | 苏州吴江春宇电子股份有限公司 | Welding clamp for multifunctional door shaft |
| CN105014283B (en) * | 2015-08-04 | 2016-08-17 | 苏州吴江春宇电子股份有限公司 | A kind of multi-functional door-hinge weld jig |
| CN107838571A (en) * | 2017-09-13 | 2018-03-27 | 浙江富春江水电设备有限公司 | Elongated thin-walled hollow axle welder and its welding method |
| CN111250733A (en) * | 2020-02-26 | 2020-06-09 | 浙江富春江水电设备有限公司 | Processing method of overweight long shaft |
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| GR01 | Patent grant |