Steel-aluminum embedded steel-aluminum composite conductor rail processing method

Abstract

The application relates to the technical field of steel-aluminum composite conductive rails, in particular to a steel-aluminum embedded steel-aluminum composite conductive rail processing method, which comprises the following steps: a stainless steel strip comprises a first contact surface and a second contact surface, the second contact surface is connected with support blocks on both sides, the positions of the support blocks are subjected to stamping treatment, a boss protruding from the first contact surface is formed, both ends of the stainless steel strip are subjected to bending treatment to form a stainless steel base strip, a bending part is formed at the bending position, and the boss is located at the bending part; an upper side of an aluminum rail profile is formed into a joint surface, supporting grooves are arranged on both sides of the joint surface, an outer side wall of the supporting groove and an outer side wall of the aluminum rail profile surround a fixing belt; the stainless steel base strip is placed on the upper side of the aluminum rail profile, the second contact surface is attached to the joint surface, and the bending part is arranged in the supporting groove; a downward load is applied to the boss, the stainless steel base strip is tightly attached to the aluminum rail profile, a connecting treatment process is applied to the fixing belt, and the fixing belt is connected with the stainless steel base strip. The gap between the steel strip and the aluminum rail is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel-aluminum composite conductor rail, in particular to a steel-aluminum embedded steel-aluminum composite conductor rail processing method. BACKGROUND

[0002] The steel-aluminum composite conductor rail is widely used in urban traffic rail due to its good conductivity, light weight, good wear resistance and other advantages. Among the connection methods of steel and aluminum, the steel-aluminum embedded connection is often used. The steel strip is bent into a C-shaped structure, which is then embedded into the two grooves on the flat surface of the aluminum rail. Pressure is applied to the side of the aluminum rail to form a riveting structure. For example, the "steel-aluminum composite contact rail and manufacturing method" disclosed in Chinese Patent Publication No. CN107650738A belongs to the steel-aluminum embedded connection.

[0003] Because the steel strip is bent into a C-shaped structure, stress exists at the bending part. When pressure is applied to the side of the aluminum rail for riveting, the bending part is prone to lift, resulting in a large gap between the steel strip and the aluminum rail. Impurities can easily enter the gap, causing electrical corrosion and increasing the contact resistance.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute prior art. SUMMARY

[0005] To solve the above problems, the present application provides a steel-aluminum embedded steel-aluminum composite conductor rail processing method, which effectively reduces the gap between the steel strip and the aluminum rail, improves the adhesion between the steel strip and the aluminum rail, and maintains good conductivity.

[0006] To achieve the above purpose, the present application provides a steel-aluminum embedded steel-aluminum composite conductor rail processing method, which includes the following steps:

[0007] a. Preparing a stainless steel base strip;

[0008] 1. Providing a stainless steel strip, which includes a first contact surface and a second contact surface. The second contact surface is connected to a support block on both sides. The support block is placed in the boss protruding from the first contact surface. The bottom surface of the support block is flush with the second contact surface. The stainless steel strip has a plug-in part outside the boss;

[0009] 2. Bending the two ends of the stainless steel strip to form a stainless steel base strip. The bending part is formed at the bending part. The boss is located in the bending part;

[0010] b. Preparing an aluminum rail profile;

[0011] 1) aluminum billet is made into I-shaped aluminum rail profile, upper side of aluminum rail profile forms a bonding surface, bonding surface is provided with a receiving groove on both sides, outside wall of receiving groove and outside wall of aluminum rail profile enclose a fixing band;

[0012] c. stainless steel base strip and aluminum rail profile are combined;

[0013] 1) the stainless steel base strip is placed on the upper side of the aluminum rail profile, the second contact surface is attached to the bonding surface, and the curved portion is placed in the receiving groove;

[0014] 2) downward load is applied to the boss, so that the stainless steel base strip is tightly attached to the aluminum rail profile, and the fixing band is subjected to a connection treatment process, so that the fixing band is connected with the stainless steel base strip.

[0015] Further, in step a, blind holes are respectively opened on both sides of the second contact surface, the support block is connected in the blind hole, and the stainless steel strip is subjected to stamping treatment to form the boss.

[0016] Further, in step a, the material of the support block is hard alloy or aluminum-silicon alloy, and the connection mode of the support block and the stainless steel strip includes welding.

[0017] Further, in step c, substep 2) includes the following steps:

[0018] S11, heating the bending part of the curved portion;

[0019] S12, downward load is applied to the boss;

[0020] S13, cooling the bending part of the curved portion.

[0021] Further, in step c, the connection treatment process includes:

[0022] S21, heating treatment is performed on the fixing band;

[0023] S22, part of the fixing band is combined with the insertion part;

[0024] S23, cooling treatment is performed on the part of the fixing band combined with the insertion part;

[0025] S24, the load applied downward to the boss is removed;

[0026] S25, the part of the fixing band protruding from the boss is extruded in the direction of the stainless steel strip;

[0027] S26, cooling treatment is performed on the part of the fixing band protruding from the boss.

[0028] Further, the insertion part is provided with a riveting hole, and in S22, part of the fixing band is riveted in the riveting hole.

[0029] Further, the bottom of the receiving groove is provided with a connecting groove in communication, the horizontal length of the connecting groove is less than that of the receiving groove, in step c, the boss is placed in the receiving groove and the connecting part is placed in the connecting groove.

[0030] The application also provides a processing device, which comprises:

[0031] The processing part is provided with a processing area, and the bottom of the processing part is provided with moving grooves on both sides, and the processing area is provided with movable side processing assemblies on both sides, which are sequentially provided with side heating modules, punching and riveting modules and side cooling modules along the processing direction, the side heating modules comprise side heating nozzles that can move in and out, the punching and riveting modules comprise punching and riveting heads that can move in and out, and the side cooling modules comprise side cooling nozzles that can move in and out, and the processing area is provided with a movable upper processing assembly on the upper side, which is sequentially provided with an upper heating module, a pressing module, a first cooling module, a forming module and a second cooling module along the processing direction, the upper heating module comprises upper heating nozzles that can move in and out, the pressing module comprises a pressing rod and a pressing block, both of which can move in and out, the forming module comprises a forming block that can move in and out, and the first and second cooling modules comprise first and second cooling nozzles that can move in and out, respectively.

[0032] The guide rail part is provided with moving guide rails on both sides in cooperation with the moving grooves, and the processing part moves along the moving guide rails, and the moving guide rails are provided with processing tables therebetween.

[0033] Further, the processing table is provided with a mounting groove.

[0034] The application has the following beneficial effects:

[0035] 1. The support block is connected to the stainless steel strip, and the stainless steel strip is subjected to stamping treatment at the connection to form a boss with a protruding first contact surface, in the connection of the stainless steel base strip and the aluminum rail profile, a downward load is applied to the boss to tension the stainless steel base strip, so that the second contact surface is tightly combined with the bonding surface, avoiding a large gap between the stainless steel base strip and the aluminum rail profile, so that water or other impurities easily enter the gap, causing galvanic corrosion, and further increasing the contact resistance.

[0036] 2. The support block is stamped into the boss to improve the structural strength of the boss, and the support capacity of the boss can be effectively improved when the downward load is applied to the boss, avoiding deformation of the boss when subjected to the load, and further affecting the bonding of the stainless steel base strip and the aluminum rail profile.

[0037] 3. The support block is embedded in the stainless steel strip by stamping, better wrapping the support block, further protecting the support block, and avoiding rain erosion to affect the conductivity of the stainless steel base strip and the aluminum rail profile. BRIEF DESCRIPTION OF DRAWINGS

[0038] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and, together with their description, serve to explain this application and do not constitute an undue limitation of the invention. In the drawings:

[0039] Figure 1 This is a cross-sectional schematic diagram of a stainless steel base strip in one embodiment of the present invention;

[0040] Figure 2 This is a cross-sectional schematic diagram of an aluminum rail profile in one embodiment of the present invention;

[0041] Figure 3 This is a schematic cross-sectional view of the connection between the stainless steel base strip and the aluminum rail profile in one embodiment of the present invention;

[0042] Figure 4 yes Figure 3 A cross-sectional view of the stainless steel base strip and aluminum rail profile completed in the embodiment shown;

[0043] Figure 5 This is a schematic diagram of the connection between the stainless steel base strip and the aluminum rail profile in one embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the processing device in one embodiment of the present invention;

[0045] Figure 7 yes Figure 6 Another view of the processing device in the illustrated embodiment;

[0046] Figure 8 This is a schematic diagram of the operation of the upper heating nozzle in one embodiment of the present invention;

[0047] Figure 9 yes Figure 8 A schematic diagram of the operation of the first cooling nozzle in the embodiment shown;

[0048] Figure 10 yes Figure 8 A schematic diagram of the operation of the side-heating nozzle in the embodiment shown;

[0049] Figure 11 yes Figure 8 A schematic diagram of the operation of the riveting head in the illustrated embodiment;

[0050] Figure 12 yes Figure 8 A schematic diagram of the side cooling nozzle operation in the embodiment shown;

[0051] Figure 13 yes Figure 8 A schematic diagram of the forming and pressing block operation in the embodiment shown;

[0052] Figure 14 yesFigure 8 Schematic diagram of the working of the second cooling nozzle in the embodiment shown.

[0053] Wherein: 10, stainless steel base strip; 101, stainless steel strip; 102, first contact surface; 103, second contact surface; 104, boss; 105, plug-in part; 1051, riveting hole; 106, bending part; 107, blind hole; 11, support block; 12, aluminum rail profile; 121, bonding surface; 122, receiving groove; 1221, plug-in groove; 123, fixing belt; 13, processing part; 131, moving groove; 132, processing area; 14, side processing assembly; 141, side heating nozzle; 142, punching and riveting head; 143, side cooling nozzle; 15, upper processing assembly; 151, upper heating nozzle; 152, pressing block; 153, pressing rod; 154, first cooling nozzle; 155, forming pressing block; 156, second cooling nozzle; 16, guide rail part; 161, moving guide rail; 162, processing table; 163, mounting groove. DETAILED DESCRIPTION

[0054] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0055] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, therefore, the scope of protection of the application is not limited by the specific embodiments disclosed below.

[0056] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0058] In the description of the present specification, the description of the terms "one embodiment", "an embodiment", "preferred", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0059] In the present application, a steel-aluminum embedded steel-aluminum composite conductor rail processing method is provided, which comprises the following steps:

[0060] a. preparing a stainless steel base strip 10;

[0061] 1) providing a stainless steel strip 101, the stainless steel strip 101 comprising a first contact surface 102 and a second contact surface 103, the two sides of the second contact surface 103 being connected with support blocks 11 respectively, the stainless steel strip 101 being punched at the position of the support blocks 11 to form a boss 104 protruding from the first contact surface 102, the support blocks 11 being placed in the boss 104, the bottom surface of the support blocks 11 being flush with the second contact surface 103, and the stainless steel strip 101 being formed with a plug-in part 105 outside the boss 104;

[0062] 2) bending the two side ends of the stainless steel strip 101 to form the stainless steel base strip 10, a bending part 106 being formed at the bending position, and the boss 104 being located at the bending part 106;

[0063] b. preparing an aluminum rail profile 12;

[0064] 1) forming the aluminum blank into an I-shaped aluminum rail profile 12, the upper side of the aluminum rail profile 12 forming a bonding surface 121, the two sides of the bonding surface 121 being provided with receiving grooves 122, and the outer side walls of the receiving grooves 122 and the outer side walls of the aluminum rail profile 12 surrounding a fixing band 123;

[0065] c. combining the stainless steel base strip 10 and the aluminum rail profile 12;

[0066] 1) placing the stainless steel base strip 10 on the upper side of the aluminum rail profile 12, the second contact surface 103 being attached to the bonding surface 121, and the bending part 106 being placed in the receiving groove 122;

[0067] 2) applying a downward load to the boss 104 so that the stainless steel base strip 10 is tightly attached to the aluminum rail profile 12, and applying a connecting treatment process to the fixing band 123 so that the fixing band 123 is connected to the stainless steel base strip 10.

[0068] In the above method, as Figure 1 , 2, 3, 4, 5, the support block 11 is connected to the second contact surface 103 of the stainless steel strip 101 on both sides of the portion, and then the stainless steel strip 101 is subjected to stamping treatment on the connecting portion, so that part of the stainless steel strip 101 protrudes from the first contact surface 102 to form a boss 104, and the support block 11 is completely embedded in the stainless steel strip 101, the bottom surface of the support block 11 is flush with the second contact surface 103 of the stainless steel strip 101, avoiding affecting the fit of the second contact surface 103 and the bonding surface 121, thereby affecting the connection tightness of the stainless steel base strip 10 and the aluminum rail profile 12, in addition, the remaining portion of the two side ends outside the boss 104 on the stainless steel strip 101 forms a plug-in part 105. After the support block 11 is embedded in the stainless steel strip 101 by stamping treatment, the two side ends of the stainless steel strip 101 are subjected to bending treatment, so that the cross section of the stainless steel strip 101 is approximately C-shaped, thereby forming the stainless steel base strip 10, and the boss 104 is located at the bending portion 106. After the stainless steel strip 101 is bent, the boss 104 protrudes outward relative to the stainless steel strip 101, and the plug-in part 105 is located below the boss 104.

[0069] Among them, the stamping treatment of the stainless steel strip 101 includes a drawing process, the stainless steel strip 101 is placed in a drawing die, and the stainless steel strip is drawn to form the boss 104.

[0070] In addition, in one embodiment, the support block 11 is a strip structure, which is embedded in the boss 104 as a whole to improve the overall strength. In an alternative embodiment, the support block 11 is a block structure, and a plurality of support blocks 11 are embedded in the boss 104 along the length direction of the aluminum rail profile.

[0071] In addition, when preparing the aluminum rail profile 12, the aluminum blank is processed to become an I-shaped aluminum rail profile 12, wherein the top surface of the aluminum rail profile 12 forms a bonding surface 121 supporting the second contact surface 103, and a receiving groove 122 is provided on both sides of the bonding surface 121 for inserting the bending portion 106 of the stainless steel base strip 10. The outer side wall of the receiving groove 122 and the outer side wall of the aluminum rail profile 12 form a fixing belt 123.

[0072] After the prepared stainless steel base strip 10 is combined with the aluminum rail profile 12, the stainless steel base strip 10 is placed on the upper side of the aluminum rail profile 12, so that the second contact surface 103 is attached to the bonding surface 121, and the bending part 106 enters the receiving groove 122. At this time, a downward force is applied to the boss 104 in the receiving groove 122, so that the second contact surface 103 of the stainless steel base strip is always in close contact with the bonding surface 121 of the aluminum rail profile 12, thereby reducing the bending of the stainless steel base strip 10 during subsequent bonding work. Finally, the fixing belt 123 is subjected to a connection treatment process, so that the fixing belt 123 is connected with the stainless steel base strip 10. Since the second contact surface 103 is always in close contact with the bonding surface 121, the gap between the stainless steel base strip 10 and the aluminum rail profile 12 is effectively avoided during the connection treatment process.

[0073] In the steel-aluminum embedded connection mode, the two sides of the stainless steel base strip 10 need to be bent, so that the stainless steel base strip 10 has stress at the bending part. When the aluminum rail profile 12 is connected, the force received by the two sides is transmitted to the stainless steel base strip 10, and the bending part of the stainless steel base strip 10 is elastically deformed to offset the force, so that the bending part of the stainless steel base strip 10 is prone to lifting, thereby increasing the gap between the stainless steel base strip 10 and the aluminum rail profile 12. Therefore, the support block 11 is connected to the stainless steel strip 101, and the connection part is subjected to a stamping process to form the boss 104 protruding from the first contact surface 102. In the connection between the stainless steel base strip 10 and the aluminum rail profile 12, a downward load is applied to the boss 104 to tension the stainless steel base strip 10, so that the second contact surface 103 is tightly attached to the bonding surface 121, thereby avoiding a large gap between the stainless steel base strip 10 and the aluminum rail profile 12, so that water or other impurities easily enter the gap, causing galvanic corrosion, thereby increasing the contact resistance and affecting the connection stability of the stainless steel base strip 10 and the aluminum rail profile 12, and reducing the working effect of the conductor rail.

[0074] In addition, the support block 11 is stamped into the boss 104 to improve the structural strength of the boss 104. When a downward load is applied to the boss 104, the support capacity of the boss 104 can be effectively improved to avoid deformation of the boss 104 under load, thereby affecting the attachment of the stainless steel base strip 10 and the aluminum rail profile 12.

[0075] The support block 11 is embedded in the stainless steel strip 101 by stamping, which better wraps the support block 11 and further protects the support block 11 from rain erosion, thereby affecting the conductivity of the stainless steel base strip 10 and the aluminum rail profile 12.

[0076] In one embodiment, the bending degree of the bending portion 106 is between 45° and 60° to the horizontal direction, so that when the bending portion 106 is inserted into the receiving groove 122, the bending portion 106 does not extend outward too much due to a too small inclination angle, and the stainless steel base strip 10 is not easy to tightly fit with the aluminum profile 12, and the bending portion 106 is more likely to be raised. In addition, a too large inclination angle is not easy to apply a load downward to the boss 104.

[0077] The stainless steel strip 101 is pressed from a steel blank, which is a prior art material.

[0078] In one preferred embodiment, in step a, as shown in the figure, blind holes 107 are formed on both sides of the second contact surface 103, and the support block 11 is connected to the blind holes 107, and then the stainless steel strip 101 is stamped to form the boss 104. Figure 1

[0079] Since the stainless steel strip 101 has different sizes according to different needs and is matched with aluminum profiles 12 of different sizes, it is difficult to stamp the thicker stainless steel strip 101 to form the boss 104. Therefore, when stamping the thicker stainless steel strip 101, blind holes 107 are first formed on both sides of the second contact surface 103 of the stainless steel strip, thereby reducing the thickness of the stamping part. The support block 11 is connected to the blind holes 107, and then the stainless steel strip 101 is stamped, wherein the support block 11 is embedded into the boss 104, so that the inner wall of the blind hole 107 is in close contact with the outer surface of the support block 11, which facilitates the formation of the boss 104, thereby improving the structural strength of the boss 104 and being conducive to applying a downward load to the boss 104.

[0080] Further specifically, in step a, the material of the support block 11 is hard alloy or aluminum-silicon alloy, and the connection mode of the support block 11 and the stainless steel strip 101 includes welding.

[0081] ​The material of the support block 11 is cemented carbide or aluminum-silicon alloy, which can improve the strength of the support block 11, avoid the deformation of the support block 11 due to the low structural strength when the stainless steel strip 101 is punched, and thus avoid the uneven stress or stress deviation of the boss 104 when the downward load is applied to the boss 104, thereby affecting the adhesion of the stainless steel base strip 10 and the aluminum rail profile 12. In addition, the connection mode of the support block 11 and the stainless steel strip 101 is welding, which is simple, easy to operate, and easy to implement, and can improve the connection strength of the support block 11 and the stainless steel strip 101 and ensure the connection stability. When connecting, the support block 11 and the stainless steel strip 101 are heated by welding, and after the support block 11 is connected with the stainless steel strip, the stainless steel strip 101 is in a heated state, and then the stainless steel strip 101 is punched, so that the stainless steel strip 101 deforms to form the boss 104, thereby avoiding the breakage of the steel strip during the punching process and enhancing the connection stability of the support block 11 and the stainless steel strip 101.

[0082] In a preferred embodiment, step c further comprises the following step:

[0083] S11, heating the bending part of the bending part 106;

[0084] S12, applying a downward load to the boss 104;

[0085] S13, cooling the bending part of the bending part 106.

[0086] In the above steps, in order to better adhere the stainless steel base strip 10 and the aluminum rail profile 12, the bending part of the bending part 106 is heated before the downward load is applied to the boss 104, so that the bending part of the stainless steel base strip 10 can better adhere to the aluminum rail profile 12 when the load is applied to the boss 104 due to the softening of the heating. In addition, the bending part of the stainless steel strip 101 expands due to heating, which can also fill the gap between the stainless steel base strip 10 and the aluminum rail profile 12 to some extent, thereby further improving the adhesion between the stainless steel base strip 10 and the aluminum rail profile 12. Then, the downward load is applied to the boss 104, and finally the bending part of the bending part 106 is cooled, so that the bending part of the bending part 106 shrinks when cold, and the boss 104 is still under the downward load, so that the bending part of the bending part 106 better adheres to the aluminum rail profile 12.

[0087] Further specifically, the connection treatment process in step c comprises:

[0088] S21, heating the fixing belt 123;

[0089] S22, combine the partial fixing band 123 with the insertion part 105;

[0090] S23, cool the part of the fixing band 123 combined with the insertion part 105;

[0091] S24, remove the load applied to the boss 104 downwardly;

[0092] S25, extrude the part of the fixing band 123 higher than the boss 104 to the stainless steel strip 101;

[0093] S26, cool the part of the fixing band 123 higher than the boss 104.

[0094] The stainless steel base band 10 is placed on the aluminum rail profile 12, wherein the bending part 106 is placed into the receiving groove 122, and then a downward force is applied to the boss 104, and then a connecting treatment process is applied to the fixing band 123 to connect it with the stainless steel band. In the specific connecting treatment process, the fixing band 123 is first heated and softened to facilitate the plastic deformation of the fixing band 123. After the heating of the fixing band 123 is completed, the fixing band 123 is combined with the insertion part 105 on the lower side of the boss 104, so that when the load applied to the boss 104 is removed, the stainless steel base band 10 does not retract and a gap does not appear between the aluminum rail profile 12, thereby affecting the connection between the stainless steel base band 10 and the aluminum rail profile 12. After the fixing band 123 and the insertion part 105 are combined, the combined part of the fixing band 123 is cooled to improve the structural strength of the fixing band 123, thereby improving the connection strength and stability of the fixing band 123 and the insertion part 105. In addition, the combined part of the fixing band 123 and the insertion part 105 shrinks when cooled, further improving the fit of the aluminum rail profile 12 and the stainless steel base band 10.

[0095] The connection between the fixing band 123 and the insertion part 105 includes welding or riveting.

[0096] After the fixing band 123 and the insertion part 105 are combined, the load applied to the boss 104 is removed, and then the part of the fixing band 123 higher than the boss 104 is extruded to the stainless steel strip 101, thereby wrapping the boss 104. This can effectively protect the bending part 106 in the insertion groove 1221 from being eroded by debris, thereby improving the service life and maintaining good conductivity of the stainless steel strip 101. In addition, extruding the part of the fixing band 123 higher than the boss 104 to the stainless steel strip 101 can effectively limit the boss 104 from shaking when subjected to external transmitted loads, thereby affecting the fit of the stainless steel base band 10 and the aluminum rail profile 12.

[0097] Finally, the part of the fixing band 123 above the boss 104 is cooled to enhance the structural strength and improve the adhesion with the boss 104 and the stainless steel strip 101.

[0098] In the processing of the fixing band 123, the fixing band 123 is heated as a whole, and then combined with the stainless steel strip 101 in multiple parts. First, the part of the fixing band 123 is connected with the insertion part 105, and then the part of the fixing band 123 above the boss 104 is extruded and connected with the stainless steel strip 101 after the force applied on the boss 104 is removed. Then, the fixing band 123 is cooled step by step and in different areas. Different connection modes and cooling effects can be achieved according to different connection requirements, which facilitates the strengthening of the structure of the fixing band 123 and the improvement of the connection effect of the fixing band 123 and the stainless steel strip 101.

[0099] Further specifically, the insertion part 105 is provided with a riveting hole 1051, as shown in Figure 1 、 4 , in S22, the part of the fixing band 123 is riveted in the riveting hole 1051.

[0100] In the combination mode of the fixing band 123 and the insertion part 105, the riveting mode is selected. The riveting hole 1051 is provided in the insertion part 105. When riveting, the fixing band 123 is heated first. After the fixing band 123 is softened by heating, pressure is applied to the fixing band 123, so that the part of the fixing band 123 is riveted into the riveting hole 1051 of the insertion part 105, the riveting of the fixing band 123 and the insertion part 105 is completed, the connection integration and stability of the fixing band 123 are improved, the process of opening the rivet hole in the fixing band 123 when using rivets is saved, the integrity of the fixing band 123 is ensured, and the structural strength of the fixing band 123 is further improved.

[0101] Further, as shown in Figure 3 、 4 , 5, the bottom of the receiving groove 122 is provided with a connected insertion groove 1221, and the transverse length of the insertion groove 1221 is less than that of the receiving groove 122. In step c, the boss 104 is placed in the receiving groove 122, and the insertion part 105 is placed in the insertion groove 1221.

[0102] The structure of the receiving groove 122 is that a plug-in groove 1221 is arranged at the bottom of the receiving groove 122. When the stainless steel base strip 10 is placed on the aluminum rail profile 12, the bending part 106 is placed in the receiving groove 122, and the plug-in part 105 at the lower side of the boss 104 is inserted into the plug-in groove 1221. Since the transverse length of the plug-in groove 1221 is less than the transverse length of the receiving groove 122, when a downward load is applied to the boss 104, the boss 104 will not enter the plug-in groove 1221, and the downward load applied to the boss 104 will not be affected when the fixing belt 123 is combined with the plug-in part 105. The boss 104 and the plug-in part 105 are placed separately, and after the fixing belt 123 is combined with the plug-in part 105, the load applied to the boss 104 is conveniently removed, so that the fixing belt 123 is connected with the stainless steel base strip 10 in steps, and the load applied to the boss 104 is conveniently removed.

[0103] The application also provides a processing device, as shown in Figure 6 、 7 The processing device comprises:

[0104] The processing part 13 is provided with a processing area 132, and both sides of the bottom of the processing part 13 are provided with moving grooves 131. Both sides of the processing area 132 are respectively provided with movable side processing assemblies 14. The side processing assemblies 14 are sequentially provided with a side heating module, a punching and riveting module and a side cooling module along the processing direction. The side heating module comprises a side heating nozzle 141 which can move in and out. The punching and riveting module comprises a punching and riveting head 142 which can move in and out. The side cooling module comprises a side cooling nozzle 143 which can move in and out. An upper processing assembly 15 is arranged on the upper side of the processing area 132. The upper processing assembly 15 is sequentially provided with an upper heating module, a pressing module, a first cooling module, a forming module and a second cooling module along the processing direction. The upper heating module comprises an upper heating nozzle 151 which can move in and out. The pressing module comprises a pressing rod 153 and a pressing block 152. Both the pressing rod 153 and the pressing block 152 can move in and out. The forming module comprises a forming pressing block 155 which can move in and out. The first cooling module and the second cooling module respectively comprise a first cooling nozzle 154 and a second cooling nozzle 156 which can move in and out.

[0105] The guide rail part 16 is provided with moving guide rails 161 which cooperate with the moving grooves 131. The processing part 13 moves along the moving guide rails 161. The moving guide rails 161 are provided with a processing table 162 therebetween.

[0106] In the above structure, as shown in Figures 8 to 14As shown, when connecting and processing the stainless steel base strip 10 and the aluminum rail profile 12, first place the stainless steel base strip 10 on the upper side of the aluminum rail profile 12, place the bending part 106 in the receiving groove 122, and then place the aluminum rail profile 12 on the processing table 162 of the guide rail part 16. In order to better process, first bend the fixing belt 123 to a certain angle in advance with respect to the stainless steel strip 101. The bending angle should not affect the subsequent downward load applied to the boss 104. Since the processing part 13 can move relative to the guide rail part 16, the aluminum rail profile 12 can gradually pass through the processing area 132 of the processing part 13 and be processed in the processing area 132. When the aluminum rail profile 12 enters the processing area 132, the upper processing assembly 15 on the upper side of the processing area 132 starts to work, as shown in Figure 8 As shown, first control the upper heating nozzle 151 of the upper heating module to extend, heat and process the bending part of the stainless steel base strip 10 to soften it, and after heating is completed, control the upper heating nozzle 151 to retract, and the upper processing assembly 15 moves one unit step along the processing direction, as shown in Figure 9 As shown, so that the pressing module moves to the upper side of the stainless steel base strip 10 after heating treatment, and then control the pressing rod 153 and the pressing block 152 of the pressing module to extend downward, so that the pressing rod 153 abuts against the boss 104 and applies a downward load to the boss 104, so that the stainless steel base strip 10 is attached to the aluminum rail profile 12. The pressing block 152 abuts between the two bending parts 106 of the stainless steel base strip 10. The stainless steel base strip 10 is tightly attached to the aluminum rail profile 12 by the combined action of the pressing block 152 and the pressing rod 153. Then control the first cooling nozzle 154 of the first cooling module to extend, so as to cool the bending part of the bending part 106, further improve the structural strength of the stainless steel base strip 10 and the attachment of the bending part to the aluminum rail profile 12. After the cooling treatment of the bending part is completed, control the first cooling module to retract.

[0107] Then, the side processing assemblies 14 located on both sides of the processing area 132 start to process the stainless steel base strip 10 and the aluminum rail profile 12, as shown in Figure 10 As shown, first control the side heating nozzle 141 of the side heating module to heat the fixing belt 123 on both sides of the aluminum rail profile 12, so as to soften the fixing belt 123 and facilitate the subsequent connection process. Control the side heating module to retract, and control the side processing assembly 14 to move one unit step along the processing direction, so that the punching and riveting module is opposite to the fixing belt 123, as shown in Figure 11As shown, the punch riveting head 142 of the punch riveting module is controlled to extend and abut against the fixing band 123, and apply force to the fixing band 123, so that part of the fixing band 123 is riveted into the riveting hole 1051 of the insertion part 105, and the combination of the fixing band 123 and the insertion part 105 is completed. Then the punch riveting head 142 is controlled to retract, and the side machining assembly 14 is moved by one unit step, so that the side cooling module corresponds to the riveted part, as shown in Figure 12 As shown, the side cooling nozzle 143 is controlled to extend and cool the riveted part of the fixing band 123. Then the side cooling nozzle 143 is controlled to retract.

[0108] After the riveted part of the fixing band 123 is cooled, the pressing rod 153 is controlled to retract and separate from the boss 104, so as to remove the load applied to the boss 104. Then the upper machining assembly 15 is moved by one unit step along the machining direction, so that the forming module corresponds to the stainless steel base band 10 to be processed, as shown in Figure 13 As shown, the forming block 155 is controlled to extend and apply pressure to the part of the fixing band 123 above the boss 104, and extrude the part towards the stainless steel strip 101, so that the part is connected to the stainless steel strip 101. Then the forming block 155 is controlled to retract, and the upper machining assembly 15 is moved by one unit step along the machining direction, so that the second cooling module corresponds to the extruded part of the fixing band 123, as shown in Figure 14 As shown, the second cooling nozzle 156 is controlled to extend and cool the part, so as to further improve the structural strength of the part and the adhesion to the stainless steel base band 10. Then the second cooling nozzle 156 is controlled to retract.

[0109] Subsequently, the machining part 13 is moved to the next position relative to the guide rail part 16, and the subsequent stainless steel base band 10 and aluminum rail profile 12 are connected and processed according to the above machining process.

[0110] In the above embodiment, the machining direction is the direction in which the device connects and machines the stainless steel base band 10 and the aluminum rail profile 12.

[0111] In an embodiment, the above telescopic structures are realized by using a hydraulic system.

[0112] In the above embodiment, the unit steps of the upper machining assembly 15 and the side machining assembly 14 are different according to the arrangement of their respective components.

[0113] In addition, the above heating module uses a tungsten argon arc gas shield welding machine, so that it can perform rapid local high temperature heating.

[0114] Further specifically, as shown in Figure 6 、 7 The machining table 162 is provided with a mounting groove 163.

[0115] In the structure, the aluminum rail profile 12 is placed in the mounting groove 163 of the processing table 162, so that the limiting effect on the aluminum rail profile 12 is further improved, and the position deviation of the aluminum rail profile 12 during processing is avoided, so as to affect the connection of the stainless steel base strip 10 and the aluminum rail profile 12.

[0116] The places not mentioned in the present application can be realized by using or referring to the existing technology.

[0117] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A method for processing steel-aluminum embedded steel-aluminum composite conductive rails, characterized in that, Includes the following steps: a. Preparation of stainless steel base strip; 1) Provide stainless steel strip, the stainless steel strip includes a first contact surface and a second contact surface, support blocks are respectively connected to both sides of the second contact surface, the stainless steel strip is stamped at the position of the support block to form a boss protruding from the first contact surface, the support block is placed in the boss, the bottom surface of the support block is flush with the second contact surface, and the stainless steel strip has an insertion part formed on the outside of the boss. 2) The stainless steel strip is bent at both ends to form the stainless steel base strip, and the bent part forms a curved part, with the boss located in the curved part; b. Prepare aluminum rail profiles; 1) The aluminum billet is made into an I-shaped aluminum rail profile. The upper side of the aluminum rail profile forms a mating surface. The mating surface is provided with receiving grooves on both sides. The outer wall of the receiving groove and the outer wall of the aluminum rail profile form a fixing band. c. Combination of stainless steel base strip and aluminum rail profile; 1) The stainless steel base strip is placed on the upper side of the aluminum rail profile, the second contact surface is in contact with the mating surface, and the bent part is placed in the receiving groove; 2) Apply a downward load to the boss so that the stainless steel base strip is tightly attached to the aluminum rail profile, and apply a connection process to the fixing strip so that the fixing strip is connected to the stainless steel base strip.

2. The method for processing steel-aluminum embedded steel-aluminum composite conductive rails according to claim 1, characterized in that: In step a, blind holes are respectively opened on both sides of the second contact surface, the support block is connected to the blind holes, and then the stainless steel strip is stamped to form the boss.

3. The method for processing steel-aluminum embedded steel-aluminum composite conductive rails according to claim 2, characterized in that: In step a, the support block is made of hard alloy or aluminum-silicon alloy, and the connection between the support block and the stainless steel strip includes welding.

4. The method for processing steel-aluminum embedded steel-aluminum composite conductive rails according to claim 1, characterized in that: Step 2 of step c includes the following steps: S11. Heat the bent portion of the curved section; S12. Apply a downward load to the boss; S13. Cool the curved portion of the bent section.

5. The method for processing steel-aluminum embedded steel-aluminum composite conductive rails according to claim 4, characterized in that: The connection process in step c includes: S21. The fixing belt is subjected to heat treatment; S22. Part of the fixing strap is joined to the insertion part; S23. Cool the portion where the fixing strap meets the insertion part; S24. Remove the downward load applied to the boss; S25. Press the portion of the fixing band that extends above the boss toward the stainless steel strip. S26. Cool the portion of the fixing strap that protrudes above the boss.

6. The method for processing steel-aluminum embedded steel-aluminum composite conductive rails according to claim 5, characterized in that: The insertion part is provided with a riveting hole, and in step S22, part of the fixing band is riveted to the riveting hole.

7. The method for processing steel-aluminum embedded steel-aluminum composite conductive rails according to claim 6, characterized in that: The bottom of the receiving groove is provided with a connected insertion groove. The lateral length of the insertion groove is less than the lateral length of the receiving groove. In step c, the boss is placed in the receiving groove, and the insertion part is placed in the insertion groove.

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