CN108788392B - Method for manufacturing conductive contact rail - Google Patents
Method for manufacturing conductive contact rail Download PDFInfo
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- CN108788392B CN108788392B CN201710285305.5A CN201710285305A CN108788392B CN 108788392 B CN108788392 B CN 108788392B CN 201710285305 A CN201710285305 A CN 201710285305A CN 108788392 B CN108788392 B CN 108788392B
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention relates to the technical field of rail transit and transportation, in particular to a method for manufacturing a conductive contact rail.
Description
Technical Field
The invention relates to the technical field of rail transit and transportation, in particular to a manufacturing method of a conductive contact rail.
Background
The rail transit is more and more popular with people due to the advantages of rapidness, punctuality, large transportation capacity, low energy consumption, less pollution and the like. The contact rail system is one of the main power transmission methods of the electrified rail transit. The contact rail system comprises main components such as insulators, clamping jaws, a supporting frame, a conductive contact rail, a common electric connecting plate (a fishplate), a cable connecting plate, an end elbow, a central anchor joint and an expansion joint. The conductive contact rail is the most major component, and is usually made of two J-shaped sections made of aluminum alloy section and stainless steel through welding, and the stainless steel surface is used as the contact surface for current collecting shoes to take electricity, and is required to have better wear resistance.
For a qualified conductive contact rail, a welded welding bead tends to be a straight line to the maximum extent and has no larger welding points and welding lacking parts; the interface resistance (between stainless steel and aluminum profile) should be within a reasonable range; the interface of the conductive contact rail is seamless; the deformation such as bending and distortion caused by welding should be minimized.
The existing welding technology adopts a working mode of conveying a welded piece while welding. The length of the part clamped during welding is very limited, so that the fixing stability of the aluminum alloy section of the conductive contact rail and the stainless steel section of the conductive contact rail is poor in the whole welding process, and the defects of deformation such as bending and distortion are easily caused after welding; in addition, because the clamping length is limited, the welding material is not completely solidified after welding and is conveyed out of the clamping range, and a large gap is generated at the contact position of the stainless steel section bar and the aluminum section bar, so that the linear resistance and the conductivity of the conductive contact rail are greatly influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide a method for manufacturing a conductive contact rail, which can weld stainless steel sections of the conductive contact rail together through an efficient and stable process and tightly compound the stainless steel sections with an aluminum alloy section body to manufacture a high-quality conductive contact rail, eliminate the deformation such as bending, distortion and the like caused by other processes, and fully ensure the product quality.
The invention is realized by the following technical scheme:
a method of making a conductive contact rail, comprising the steps of:
(1) conveying the aluminum profile attached with the stainless steel profile of the conductive contact rail to a welding position through a conveying mechanism, arranging a abdicating hole on the surface of a welding platform, attaching the aluminum profile of the stainless steel profile of the conductive contact rail, lifting a roller conveyor belt to a certain height higher than the welding platform from the abdicating hole, conveying the aluminum profile attached with the stainless steel profile of the conductive contact rail to the welding position along the welding platform, and then lowering the lifting roller conveyor belt to a certain height lower than the welding platform from the abdicating hole to enable the aluminum profile attached with the stainless steel profile of the conductive contact rail to be in contact with a welding plane;
(2) the welding platform is provided with two rows of movable clamp assemblies, one side of each movable clamp assembly is fixed on the welding platform, the other side of each movable clamp assembly is driven by an air cylinder to clamp or release the movable clamp assembly, a clamp clamping block matched with the outline of the stainless steel section of the conductive contact rail is arranged on the upper side of each movable clamp assembly, and an elastic mechanism is arranged on the lower side of each clamp fixing block and is in contact with a rib plate of the aluminum section. When the aluminum profile attached with the conductive contact rail stainless steel profile is conveyed to a welding position, the movable clamp assembly on one side is driven by the cylinder to clamp the welded part through the movable clamp assembly on the other side, the clamp fixture block on the upper side of the clamp fixing block is in close contact with the conductive contact rail stainless steel profile, and the ejector block of the elastic mechanism on the lower side of the clamp fixing block is in close contact with the rib plate of the aluminum profile;
(3) one side of the welding platform is provided with a welding wire, a welding gun and a welding gun bracket which can stably move along the direction of the welding platform. The welding gun is positioned right above a welding seam through a welding gun bracket arranged on the linear guide rail, and the welding gun positioned at the welding starting position moves at a stable speed along the welding platform under the action of a welding driving mechanism when the welding is started;
(4) after welding, firstly lifting a certain height, then rotating a certain angle through a steering mechanism, and after the welded conductive contact rail is conveyed, adjusting the position of a welding gun to prepare for next welding;
(5) after the welding is completed, the movable clamp assembly resets firstly, the elastic mechanism pops out the clamp clamping range of the welded conductive contact rail, and the roller conveyor belt capable of lifting at last rises to a certain height of the welding platform from the abdicating hole to convey the welded conductive contact rail to the next procedure.
In the step (1), the welding platform comprises a support frame, a welding table top arranged at the top of the support frame and a lifting conveying mechanism arranged in the middle of the support frame, wherein the lifting conveying mechanism comprises a plurality of roller conveying belts and a roller conveying belt lifting mechanism for driving the roller conveying belts to lift, and a yielding through hole for the roller conveying belts to lift and pass is formed in the middle of the welding table top corresponding to the roller conveying belts;
and (2) an upper bayonet and a lower bayonet are arranged in the fixture fixing block, one side of the fixture block is clamped at the upper bayonet of the fixture fixing block, the shape of the other side of the fixture block is matched with the outline shape of the conductive contact rail stainless steel section, the elastic fixture block comprises an ejection block fixed in the lower bayonet through a bolt and a spring arranged between one end of the ejection block and the lower bayonet, a through hole is formed in one end of the ejection block, and the bolt penetrates through the through hole and is fixed in the lower bayonet.
Step (3) the welding gun support comprises a welding gun support sliding table part matched with the welding gun support guide rail and a support arm limiting connection part arranged above the welding gun support sliding table part, one end of the support arm is fixedly connected with the welding gun, the other end of the support arm is provided with a hinged connection part, the hinged connection part is hinged with the support arm limiting connection part and is sequentially provided with a first hinge shaft and a second hinge shaft in a hinged connection mode, and an arc-shaped hinge hole is formed in the hinged position of the second hinge shaft in the hinged connection part.
The invention has the beneficial effects that:
the invention aims to improve the straightness of the conductive contact rail through a clamping platform welding process, eliminate the quality problems of distortion, deformation and the like caused by welding heating, greatly improve the product quality and create great economic benefits.
Drawings
Fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5 are schematic structural views of a welding platform, wherein fig. 1 is a front view of the welding platform; FIG. 2 is a top view of a welding platform; FIG. 3 is a side view of a welding platform; fig. 4 and 5 are perspective views of the welding platform.
Fig. 6 and 7 are schematic structural diagrams of the clamping mechanism, wherein fig. 6 is a perspective structural view of the clamping mechanism, and fig. 7 is a sectional structural view of the clamping mechanism.
Fig. 8 and 9 are schematic views of the guide mechanism, wherein fig. 8 is a front view of the guide mechanism; fig. 9 is a perspective view of the guide mechanism.
Fig. 10 and 11 are schematic diagrams of a welding mechanism, wherein fig. 10 and 11 are schematic diagrams of the welding mechanism in an operating state; fig. 12 and 13 are schematic structural views of the welding mechanism in a non-operating state.
Fig. 14, 15, 16 and 17 are schematic structural views of the whole invention, wherein fig. 14 is a front view of the whole structure of the invention; FIG. 15 is a top plan view of the overall structure of the invention; FIG. 16 is a perspective view of the overall construction of the invention; fig. 17 is a side view of the overall structure of the invention.
In the figure: 1. the welding platform comprises a welding platform, 2, a support frame, 3, a welding table top, 4, a roller conveyor belt lifting mechanism, 5, a roller conveyor belt, 6, an abdicating through hole, 7, a top bracket, 8, a support rod, 9, a middle hinged shaft, 10, a bottom bracket, 11, a lifting push rod, 12, a clamp fixing block, 13, a clamp clamping block, 14, an elastic clamping block, 15, a horizontal pushing cylinder, 16, an upper clamping opening, 17, a lower clamping opening, 18, a bolt, 19, an ejector block, 20, a spring, 21, a guide mechanism, 22, a mounting seat, 23, a vertical roller, 24, a welding gun support guide rail 25, a welding gun support, 26, 27, a welding gun support sliding table part, 28, a support arm limiting connection part, 29, a hinged connection part, 30, a first hinged shaft, 31, a second hinged shaft, 32, an arc-shaped hinged hole, 33, a support arm, 34, a moving trailer translation rail, 35, a, 37. and a welding wire barrel.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
The invention comprises the following steps:
(1) conveying the aluminum profile attached with the stainless steel profile of the conductive contact rail to a welding position through a conveying mechanism, arranging a abdicating hole on the surface of a welding platform, attaching the aluminum profile of the stainless steel profile of the conductive contact rail, lifting a roller conveyor belt to a certain height higher than the welding platform from the abdicating hole, conveying the aluminum profile attached with the stainless steel profile of the conductive contact rail to the welding position along the welding platform, and then lowering the lifting roller conveyor belt to a certain height lower than the welding platform from the abdicating hole to enable the aluminum profile attached with the stainless steel profile of the conductive contact rail to be in contact with a welding plane;
(2) the welding platform is provided with two rows of movable clamp assemblies, one side of each movable clamp assembly is fixed on the welding platform, the other side of each movable clamp assembly is driven by an air cylinder to clamp or release the movable clamp assembly, a clamp clamping block matched with the outline of the stainless steel section of the conductive contact rail is arranged on the upper side of each movable clamp assembly, and an elastic mechanism is arranged on the lower side of each clamp fixing block and is in contact with a rib plate of the aluminum section. When the aluminum profile attached with the conductive contact rail stainless steel profile is conveyed to a welding position, the movable clamp assembly on one side is driven by the cylinder to clamp the welded part through the movable clamp assembly on the other side, the clamp fixture block on the upper side of the clamp fixing block is in close contact with the conductive contact rail stainless steel profile, and the ejector block of the elastic mechanism on the lower side of the clamp fixing block is in close contact with the rib plate of the aluminum profile;
(3) one side of the welding platform is provided with a welding wire, a welding gun and a welding gun bracket which can stably move along the direction of the welding platform. The welding gun is positioned right above a welding seam through a welding gun bracket arranged on the linear guide rail, and the welding gun positioned at the welding starting position moves at a stable speed along the welding platform under the action of a welding driving mechanism when the welding is started;
(4) after welding, firstly lifting a certain height, then rotating a certain angle through a steering mechanism, and after the welded conductive contact rail is conveyed, adjusting the position of a welding gun to prepare for next welding;
(5) after the welding is completed, the movable clamp assembly resets firstly, the elastic mechanism pops out the clamp clamping range of the welded conductive contact rail, and the roller conveyor belt capable of lifting at last rises to a certain height of the welding platform from the abdicating hole to convey the welded conductive contact rail to the next procedure.
The invention aims to improve the straightness of the conductive contact rail through a clamping platform welding process, eliminate the quality problems of distortion, deformation and the like caused by welding heating, greatly improve the product quality and create great economic benefits.
As shown in the drawings, the present invention can be realized by a production system comprising a welding platform, a clamping mechanism and a welding mechanism arranged on the welding platform, wherein,
the welding platform 1 comprises a support frame 2, a welding table top 3 arranged at the top of the support frame and a lifting conveying mechanism arranged in the middle of the support frame, wherein the lifting conveying mechanism comprises a plurality of roller conveying belts 5 and a roller conveying belt lifting mechanism 4 for driving the roller conveying belts to lift, and a yielding through hole 6 for the roller conveying belts to lift and pass is formed in the middle of the welding table top corresponding to the roller conveying belt;
the abdicating through hole abdicating the roller conveyor belt on the lower side of the abdicating through hole, the roller conveyor belt can extend out along the abdicating through hole under the driving of the roller conveyor belt lifting mechanism, and is contacted with the aluminum profile on the welding table surface and drives the aluminum profile to be transmitted and conveyed;
the roller conveyor belt lifting mechanism in the embodiment can be any structure capable of driving the roller conveyor belt to lift, and has the functions of driving the roller conveyor belt to extend out and guide materials when aluminum profiles or conductive contact rails need to be conveyed through the roller conveyor belt, and driving the roller conveyor belt to retract to the lower side of the welding table top after the materials are guided, so that welding operation is not influenced;
the roller conveyor belt lifting mechanism in this example may preferably be configured as follows:
the roller conveyor belt lifting mechanism comprises a top bracket 7 used for fixing a plurality of roller conveyor belts, a plurality of groups of supporting rods 8 symmetrically hinged to two sides of the top bracket, a middle hinge shaft 9 hinged to the middle of the opposite side supporting rod, a bottom bracket 10 hinged to the bottom of the supporting rod and a lifting push rod 11 connected to a bottom hinge shaft at one end, and the middle hinge shaft is fixed on the supporting frame.
In operation, lift push rod promotes the one end of bottom bracket, drives multiunit bracing piece rotatory along the middle part hinge, and the middle part hinge is fixed for top bracket can rotatory rise or descend, and the gyro wheel conveyer belt is fixed in top bracket, and its upper portion is higher than top bracket, can stretch out the through-hole of stepping down or retract to the through-hole downside of stepping down under top bracket drives.
As shown in fig. 5, when the welding table top is long, a plurality of support frames can be adaptively arranged on the lower side of the welding table top.
The clamping mechanism comprises two clamp fixing blocks 12 which are symmetrically arranged, and clamp clamping blocks 13 and elastic clamping blocks 14 which are arranged on the inner sides of the clamp fixing blocks, wherein one clamp fixing block is fixed on the welding table surface, the other clamp fixing block pushes the other clamp fixing block to translate through a horizontal pushing cylinder 15 arranged on one side, the clamp clamping blocks clamp the upper part of the stainless steel section bar of the conductive contact rail, and the elastic clamping blocks elastically support the rib parts of the aluminum section bar of the conductive contact rail;
the elastic fixture block in the embodiment is an elastic jacking block, and has the functions that when the two fixture fixing blocks clamp the conductive contact rail, the elastic fixture block is elastically compressed, and when the two fixture fixing blocks are separated, the elastic fixture block provides elasticity to pop out the conductive contact rail so as to separate the conductive contact rail from the fixture fixing blocks;
the elastic fixture block, the clamp fixture block and the fixing mode thereof in the embodiment are preferably as follows:
be equipped with in the anchor clamps fixed block and be equipped with bayonet socket 16 and bayonet socket 17 down, anchor clamps fixture block one side card is in the last bayonet socket of anchor clamps fixed block, and the opposite side shape suits with the outline shape of conductive contact rail stainless steel section bar, and the elasticity fixture block includes that the bolt 18 is fixed in the intraoral ejecting block 19 of bayonet socket down and locates ejecting block one end and the spring 20 between the bayonet socket down, ejecting block one end is equipped with the through-hole, and the bolt passes the through-hole and is fixed in the bayonet socket down. The ejection block is cylindrical, one end of the ejection block is open, the other end of the ejection block is of an inner flange structure to form a through hole, and when the ejection block is installed, a bolt penetrates through the opening and penetrates through the opening to be fixedly connected with the lower bayonet.
The profile of the fixture block of the fixture is smaller than the profile of the conductive contact rail, so that the contact and fixing effects are ensured, the fixture block of the fixture is clamped through the upper opening, the fixture block of the fixture is more slippery after being worn, and the fixture block is convenient to adapt according to different specifications of the conductive contact rail.
When the two fixture fixing blocks clamp the conductive contact rail, the two fixture clamping blocks clamp the upper part of the conductive contact rail, the ejection blocks of the two elastic clamping blocks abut against the rib part of the aluminum profile of the conductive contact rail, the springs on the inner sides of the ejection blocks are compressed, and when the two fixture fixing blocks are separated, the ejection blocks are subjected to ejection force of the springs and eject the conductive contact rail to be separated from the fixture fixing blocks;
preferably, a plurality of clamping mechanisms are arranged along the length direction of the welding table top, and a certain gap is formed between every two adjacent clamping mechanisms.
Preferably, a guide mechanism is arranged between one or more groups of adjacent clamping mechanisms, the guide mechanism 21 comprises a mounting seat 22 fixed on the welding table top and a vertical roller 23 fixedly connected with the mounting seat, and the vertical roller rotates along with the conductive contact rail to provide auxiliary limit for the conductive contact rail;
the welding mechanism comprises a welding gun support guide rail 24 fixed on the welding table top, a welding gun support 25 arranged on the welding gun support guide rail, a welding gun 26 connected with the welding gun support through a support arm 33 and an automatic welding driving mechanism arranged on one side of the welding table top, wherein,
the welding gun support comprises a welding gun support sliding table part 27 matched with a welding gun support guide rail and a support arm limiting connecting part 28 arranged above the welding gun support sliding table part, one end of the support arm is fixedly connected with a welding gun, the other end of the support arm is provided with a hinged connecting part 29, the hinged connecting part is hinged with the support arm limiting connecting part and is sequentially provided with a first hinge shaft 30 and a second hinge shaft 31, and the hinged connecting part is provided with an arc-shaped hinge hole 32 at the hinged part of the second hinge shaft;
the support arm provides the support to the welder, and the support arm can be rotatory along first hinge, and the second hinge removes along arc hinge hole simultaneously, and second hinge both ends can set up the locking bolt, and locking bolt locking, and the second hinge is not taking place to remove, and first hinge is spacing to the support arm with second hinge combined action.
Fig. 10 and 11 are schematic structural diagrams of the welding mechanism in a working state, in which the support arm is rotated to enable the welding gun to be in a vertical state;
FIGS. 12 and 13 are schematic views of the welding mechanism in an inoperative position, wherein the support arm is rotated to position the welding gun in a horizontal position;
preferably, the automated welding drive gun carriage translation drive includes a mobile trailer translation track 34, a mobile trailer 35 that slides along the mobile trailer translation track, a welder 36 secured to the mobile trailer, and a welding wire drum 37.
The automatic welding driving mechanism bears any known mechanism for synchronously sliding the accessories such as the welding machine, the welding wire barrel and the like and the welding machine mechanism, and preferably has the following structure:
in the welding mode, the welding gun needs to be over against the welding seam for welding, and when the welding is completed, the welding gun needs to be moved away, so that the welded conductive contact rail is taken down or the conductive contact rail to be welded is installed, and the support ratio can be adjusted to complete the action, obviously, various implementation modes can be realized, and the following mode is preferred in the embodiment:
the welding machine is used with the cooperation of welder, and welder sets up wire drive feed mechanism simultaneously, and the welding wire bucket supplies the silk for wire drive feed mechanism for the welding machine can adapt to long-time welding and use.
The working process of the production system is as follows:
placing an aluminum profile of the conductive contact rail on one side of the welding platform, driving the roller conveyor belt to extend out of the abdicating hole by the roller conveyor belt lifting mechanism, contacting the aluminum profile and conveying the aluminum profile to the welding position along the welding platform, and retracting the roller conveyor belt to the lower side of the abdicating hole after the aluminum profile reaches the welding position;
after the aluminum profiles are transmitted to the welding position, the J-shaped profiles on two sides are respectively placed at the welding position, the fixture fixing block on one side is pushed by the horizontal pushing cylinder to be close to the fixture fixing block on the other side and clamp the conductive contact rail, and the fixture block and the elastic fixture block are respectively used for clamping the upper part and the lower part of the conductive contact rail;
adjusting the support arm to enable the welding gun to rotate to be vertically aligned above the welding seam of the conductive contact rail, and enabling the welding gun to start welding the welding seam of the conductive contact rail and translate along the welding platform;
the welding gun is translated to the tail end of the welding platform to be welded, then the front end of the welding platform is moved back to wait for the next welding operation, and the support arm is adjusted to enable the welding gun to rotate to a horizontal state;
the horizontal pushing cylinder on one side of the fixture fixing blocks pushes the two fixture fixing blocks to separate, and the conductive contact rail is completely separated from the fixture fixing blocks under the elastic action of the elastic fixture blocks;
the roller conveyor belt extends out along the abdicating hole, and the roller conveyor belt is contacted with the welded conductive contact rail and outputs the conductive contact rail from the welding platform.
Claims (4)
1. A method for manufacturing a conductive contact rail is characterized by comprising the following steps:
(1) conveying the aluminum profile attached with the stainless steel profile of the conductive contact rail to a welding position through a conveying mechanism, arranging a abdicating hole on the surface of a welding platform, attaching the aluminum profile of the stainless steel profile of the conductive contact rail, lifting a roller conveyor belt to a certain height higher than the welding platform from the abdicating hole, conveying the aluminum profile attached with the stainless steel profile of the conductive contact rail to the welding position along the welding platform, and then lowering the lifting roller conveyor belt to a certain height lower than the welding platform from the abdicating hole to enable the aluminum profile attached with the stainless steel profile of the conductive contact rail to be in contact with a welding plane;
(2) the welding device comprises a welding platform, a plurality of movable clamp assemblies, a plurality of clamping devices, a plurality of elastic mechanisms, a plurality of clamping blocks and a plurality of clamping blocks, wherein the movable clamp assemblies are arranged on the welding platform in two rows, one side of each clamping device assembly is fixed on the welding platform, the other side of each clamping device assembly is driven by an air cylinder to clamp or release the movable clamp assembly on one side, the clamping blocks are arranged on the upper side of each clamping device fixing block and are in contact with rib plates of aluminum profiles, when the aluminum profiles attached with the stainless steel profiles of the conductive contact rails are conveyed to a welding position, the movable clamp assemblies on one side are driven by the air cylinder to clamp welded parts through the movable clamp assemblies on the other side, the clamping blocks on the upper side of each clamping device fixing block are in close contact with the stainless steel profiles of;
(3) the welding and welding wire, the welding gun and the welding gun bracket which can stably move along the direction of the welding platform are arranged on one side of the welding platform, the welding gun is positioned right above a welding seam through the welding gun bracket arranged on the linear guide rail, and the welding gun positioned at the welding starting position moves at a stable speed along the welding platform under the action of the welding driving mechanism when the welding is started;
(4) after welding, firstly lifting a certain height, then rotating a certain angle through a steering mechanism, and after the welded conductive contact rail is conveyed, adjusting the position of a welding gun to prepare for next welding;
(5) after the welding is completed, the movable clamp assembly resets firstly, the elastic mechanism pops out the clamp clamping range of the welded conductive contact rail, and the roller conveyor belt capable of lifting at last rises to a certain height of the welding platform from the abdicating hole to convey the welded conductive contact rail to the next procedure.
2. The method according to claim 1, wherein in step (1), the welding platform comprises a support frame, a welding table top disposed on the top of the support frame, and a lifting/lowering mechanism disposed in the middle of the support frame, the lifting/lowering mechanism comprises a plurality of roller belts and a roller belt lifting/lowering mechanism for driving the roller belts to lift or lower, and a relief through hole for the roller belts to lift or lower is disposed in the middle of the welding table top corresponding to the roller belt.
3. The method according to claim 1, wherein in step (2), the fixture fixing block is provided with an upper bayonet and a lower bayonet, one side of the fixture block is clamped in the upper bayonet of the fixture fixing block, the other side of the fixture block is adapted to the contour shape of the stainless steel profile of the conductive contact rail, the elastic block comprises an ejector block fixed in the lower bayonet by a bolt and a spring arranged between one end of the ejector block and the lower bayonet, one end of the ejector block is provided with a through hole, and the bolt passes through the through hole and is fixed in the lower bayonet.
4. The method according to claim 1, wherein in step (3), the welding gun support comprises a welding gun support sliding table portion engaged with the welding gun support guide rail and a support arm limiting connection portion disposed above the welding gun support sliding table portion, one end of the support arm is fixedly connected to the welding gun, the other end of the support arm is provided with a hinge connection portion, the hinge connection portion is connected to the support arm limiting connection portion in a hinged manner, and a first hinge shaft and a second hinge shaft are sequentially disposed at the hinge connection portion, and the hinge connection portion is provided with an arc-shaped hinge hole at a hinge position of the second hinge shaft.
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| CN201710285305.5A CN108788392B (en) | 2017-04-27 | 2017-04-27 | Method for manufacturing conductive contact rail |
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| CN201710285305.5A CN108788392B (en) | 2017-04-27 | 2017-04-27 | Method for manufacturing conductive contact rail |
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| CN108788392B true CN108788392B (en) | 2020-08-14 |
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| CN103587432A (en) * | 2013-11-25 | 2014-02-19 | 南京金城轨道交通设备有限公司 | Forming technology for combined steel and aluminum contact rails |
| CN105773029A (en) * | 2016-03-16 | 2016-07-20 | 天津滨海新区普圣电气有限公司 | Automatic welding technology of stainless steel J section steel-aluminum composite conductor rail |
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2017
- 2017-04-27 CN CN201710285305.5A patent/CN108788392B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04183646A (en) * | 1990-11-20 | 1992-06-30 | Bruckner Willis & Co Ltd | Conductive rail |
| CN1814403A (en) * | 2006-03-03 | 2006-08-09 | 常州轨道车辆牵引传动工程技术研究中心 | Method for preparing welded steel-aluminium composite conducting rail |
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| CN108788392A (en) | 2018-11-13 |
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