A suspended rail flash welding and induction heat treatment integrated machine

Abstract

The present application belongs to the technical field of railway engineering machinery and equipment manufacturing, and specifically relates to a suspended rail flash welding and induction heat treatment integrated machine. It includes welding equipment and an induction heat treatment machine, and the welding equipment includes a static frame clamping mechanism and a dynamic frame clamping mechanism. The A center axis of the dynamic frame clamping mechanism and the B center axis of the static frame clamping mechanism are disconnected from each other, and an induction heat treatment machine is arranged between the two. The heat treatment normalizing coil of the induction heat treatment machine is located at the lower end of the static frame clamping mechanism and the dynamic frame clamping mechanism, and is enveloping the circumference of the rail to be welded. The present application is suitable for on-site rail welding, and can realize the two operating functions of welding and heat treatment by clamping the rail at one time. The present application places the normalizing coil of the heat treatment machine at the lower end between the static frame and the dynamic frame of the welding machine, enveloping the circumference of the rail to be welded. After the welding equipment clamps and positions the rail, the heat treatment equipment is positioned on the rail.

Description

Technical Field

[0001] The present application belongs to the technical field of railway engineering machinery and equipment manufacturing, and specifically relates to a suspended rail flash welding and induction heat treatment integrated machine that completes both welding and heat treatment operations by clamping at one time. Background Art

[0002] With the rapid development of high-speed rail, the safety and reliability of railways are becoming increasingly important, and the welding quality of rails is also constantly improving. According to the requirements for post-weld heat treatment after rail welding in TB / T1632.2-2014 "Rail Welding Part 2: Flash Welding": The welding joints of mobile flash welders should adopt medium-frequency induction method.

[0003] At present, in domestic rail welding factories (or bases), flash welding machines and medium frequency induction heat treatment machines are installed at two stations of the production line, and the work is completed in an assembly line manner. At the rail welding site, welding and heat treatment are divided into two devices placed on two working flatbed trucks to complete welding and heat treatment respectively. Welding and heat treatment are both time-consuming and costly.

[0004] The existing utility model patent CN207811824U is a suspended rail flash welding medium frequency heat treatment mechanism. The structure is to place the heat treatment machine at the upper end between the static frame and the dynamic frame of the welding machine, and realize the rise and fall of the heat treatment machine through the lifting mechanism. During welding, the normalizing coil on the heat treatment machine is raised to the top of the rail, and after welding, the normalizing coil of the heat treatment machine is lowered to complete the heat treatment. In this process, before welding, it is necessary to manually place a slag blocking plate to isolate the welding machine and the heat treatment machine. After welding, the slag blocking plate is evacuated before heat treatment. During the welding process, welding slag inevitably splashes into the linear guide lifting mechanism and the heat treatment normalizing coil, which is easy to cause the jamming and wear of the moving parts and affect the closure of the heat treatment normalizing coil, and finally affect the normal use of the heat treatment machine. In addition, this equipment needs to remove the welding strip after the push-up after heat treatment. At this time, the welding strip has cooled down, and the welding strip is annular and not easy to clean. Finally, the air spray assembly of the equipment is fixed separately to the upper end of the heat treatment machine, and the pipeline is more complicated. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, a suspended rail flash welding and induction heat treatment integrated machine is specially proposed to prevent welding slag from flying into the conductive surface of the heat treatment normalizing coil and affecting the heat treatment effect.

[0006] In order to achieve the above technical effects, the technical solution of this application is as follows:

[0007] A suspended rail flash welding and induction heat treatment integrated machine comprises welding equipment and an induction heat treatment machine, wherein the welding equipment comprises a stationary frame clamping mechanism, a dynamic frame clamping mechanism, a pressure-maintaining nodule pushing mechanism, a nodule pushing knife assembly and an upsetting guide shaft mechanism, wherein the dynamic frame clamping mechanism and the stationary frame clamping mechanism are suspended by a suspension mechanism, wherein the A center axis of the dynamic frame clamping mechanism and the B center axis of the static frame clamping mechanism are disconnected from each other, and an induction heat treatment machine is arranged between the two, and an upsetting guide shaft mechanism penetrating the stationary frame clamping mechanism and the dynamic frame clamping mechanism is arranged below the induction heat treatment machine, and the heat treatment normalizing coil of the induction heat treatment machine is located at the lower end of the stationary frame clamping mechanism and the dynamic frame clamping mechanism, and is enveloped on the circumference of the rail to be welded.

[0008] Furthermore, the induction heat treatment machine fixing plate is fixed on the inner shaft end face of the B center axis, the induction heat treatment machine translation guide rod is fixed on both sides of the induction heat treatment machine fixing plate, and the heat treatment machine translation guide sleeve on the induction heat treatment machine is connected to the welding equipment as a whole through the induction heat treatment machine translation guide rod; the induction heat treatment machine translation cylinder is installed and fixed in the B center axis, and the piston rod is connected to the fixed frame of the induction heat treatment machine.

[0009] Furthermore, an auxiliary guide shaft connecting the static frame clamping mechanism and the dynamic frame clamping mechanism is arranged above the induction heat treatment machine.

[0010] Furthermore, the movable frame clamping mechanism is composed of a group of symmetrical movable frame clamps hinged together through the A center axis, the movable frame clamping cylinder is horizontally installed on the upper part of the movable frame clamp, and a movable frame synchronous connecting rod mechanism is arranged between a group of symmetrical movable frame clamps. The static frame clamping mechanism is composed of a group of symmetrical static frame clamps hinged together through the B center axis, the static frame clamping cylinder is horizontally installed on the upper part of the static frame clamp, and a static frame synchronous connecting rod mechanism is arranged between a group of symmetrical static frame clamps.

[0011] Furthermore, the upsetting guide shaft mechanism includes an upsetting shaft, a guide shaft and an upsetting cylinder. The piston rod of the upsetting cylinder is connected to the upsetting shaft through threads. The cylinder body of the upsetting cylinder is installed and fixed on the static frame clamp, and the upsetting shaft is fixed on the dynamic frame clamp.

[0012] Furthermore, the pressure-maintaining and tumor-pushing mechanism is installed on the movable frame clamp of the movable frame clamping mechanism, and comprises a tumor-pushing oil cylinder and a tumor-pushing tool holder, and the tumor-pushing oil cylinder is connected to the tumor-pushing tool holder.

[0013] Furthermore, the tumor pushing knife assembly is placed close to the tumor pushing knife holder before welding, and the tumor pushing knife assembly includes a hook handle, a left waist knife, a bottom knife, a top knife and a right waist knife, and the left waist knife, the bottom knife, the top knife and the right waist knife are symmetrically installed with cutting blocks, wherein the left waist knife, the bottom knife, the top knife and the right waist knife are hinged together by a hinge shaft, and then self-locked and fastened by the hook handle, and finally form the shape of the cross section of the rail.

[0014] Furthermore, the induction heat treatment machine includes an induction transformer, a heat treatment normalizing coil, a heat treatment normalizing coil clamping cylinder, a heat treatment normalizing coil die base and a slag plate assembly that can form a rail cross section. The cylinder body of the heat treatment normalizing coil clamping cylinder is fixed to the fixed frame through a support, and the cylinder piston rod is hinged to the heat treatment normalizing coil die base; the induction transformer is fixed above the fixed frame, and the secondary side of the transformer is connected to the heat treatment normalizing coil through a bus; the heat treatment normalizing coil die base is fixed to the left and right sides of the fixed frame by a hinged manner, and the heat treatment normalizing coil is fixed on the heat treatment normalizing coil die base; the horizontal cylinder connecting seat is fixed to the right side of the fixed frame, connected to the piston rod of the induction heat treatment machine translation cylinder, the heat treatment machine translation guide sleeve is fixed to the front and rear sides of the fixed frame, and cooperates with the induction heat treatment machine translation guide rod, and the heat treatment machine translation guide rod slag cover is fixed to the heat treatment machine translation guide sleeve. Each coil of the heat treatment normalizing coil is hollow, and both ends are connected to the waterway block respectively.

[0015] The heat treatment normalizing coil die base is provided with a jet outlet and a jet inlet for jet cooling after the weld is heated. Compressed air is connected through the jet connector.

[0016] Furthermore, the slag stopper assembly includes slag stopper A, slag stopper B and slag stopper C. Slag stopper A and slag stopper C are symmetrically fixed on the back and front sides of the heat treatment normalizing coil die base, respectively. Slag stopper A and slag stopper C form the shape of the rail cross section, and slag stopper B is fixed on the fixed frame.

[0017] The rail top temperature sensor and rail bottom temperature sensor are installed on the heat treatment normalizing coil die base.

[0018] The working steps of this patented device are as follows:

[0019] Step 1: Before welding, remove rust and oxide scale from the rail waist, hang the nodule remover to the end of the rail to be welded, retreat the heat treatment machine to the initial position, and keep the heat treatment normalizing coil in the open state.

[0020] Step 2: After the static frame clamping mechanism and the dynamic frame clamping mechanism of the welding equipment clamp the rail into position, before welding, the heat treatment normalizing coil is closed, and the heat treatment machine is pushed to the end of the rail to be welded through the translation mechanism, and the end of the rail to be welded begins to be heated. After heating to a certain temperature, the heat treatment equipment returns to the initial position, the welding system is started, and flash burning begins until the final welding upset is completed. The pressure-maintaining nodule-pushing mechanism realizes the nodule-pushing of the weld, the tool holder is withdrawn, the welding strip is cleaned, and the nodule-pushing knife is removed;

[0021] The heat treatment normalizing coil is arranged at the lower end and is wrapped around the circumference of the rail. The normalizing coil is opened and clamped by the oil cylinder on the heat treatment normalizing coil clamping oil cylinder, and the heat treatment machine normalizing coil is pushed from the initial position to the weld to be normalized by translating the oil cylinder 11.

[0022] Step 3: The induction heat treatment machine is pushed to the weld through the translation mechanism and starts to spray air. After the weld temperature drops to a certain temperature, the heating coil starts to induction heat the weld. After the heating is completed, air is sprayed again to reduce the weld temperature to the process requirements.

[0023] Step 4: After the heat treatment air spray is completed, the heat treatment machine returns to its initial position, the coil opens, and finally the static frame clamping mechanism and the dynamic frame clamping mechanism of the welding equipment open to release the rails, completing the rail welding and weld heat treatment.

[0024] The advantages of this application are:

[0025] 1. This application is applicable to on-site rail welding. It can realize two operating functions of welding and heat treatment by clamping the rail at one time. This application places the normalizing coil of the heat treatment machine at the lower end between the static frame and the dynamic frame of the welding machine, enveloping the circumference of the rail to be welded. After the welding equipment clamps and positions the rail, the heat treatment equipment is positioned on the rail. Before welding, the normalizing coil of the induction heat treatment machine is translated to the end of the rail to be welded by a translation mechanism. The induction heat treatment normalizing coil heats the end of the rail, reduces the flash time during welding, and reduces the amount of burning of the rail. After welding is completed, the normalizing coil of the induction heat treatment machine is translated to the weld position by a translation mechanism to complete the heat treatment.

[0026] 2. The present application combines an induction heat treatment machine with a welding machine, which satisfies the requirement that heat treatment of the weld can be carried out after flash welding is completed. It is also necessary to achieve effective isolation between the welding slag splash generated by the welding machine during rail welding and the induction heat treatment machine, so as to prevent the welding slag from flying into the conductive surface of the heat treatment normalizing coil, causing poor contact of the heat treatment normalizing coil and affecting the weld heat treatment process. If the welding slag sticks to the surface of the heat treatment normalizing coil, it will also cause eddy currents in the coil during heating, causing a decrease in effective heating power or a short circuit. A slag retaining plate imitating the shape of a steel rail is installed on the surface of the induction heat treatment machine, which can effectively prevent welding slag from entering. The translation mechanism adopts a guide rod-guided method and comes with a slag retaining cover, which can effectively protect moving parts. The heat treatment machine has real-time temperature monitoring and real-time air spraying functions.

[0027] 3. This application adopts a tumor-pushing knife with the function of cutting off the welding strip. After the welding is completed, the annular welding strip is divided into several parts, which is more convenient to clean. Finally, the air jet outlet and air jet inlet of the equipment are directly integrated on the heat treatment normalizing coil die base, which realizes the function while reducing parts and pipelines. While realizing the function, this patent has a more compact and reasonable overall structure of the equipment, is easy to operate, and has a low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of this application.

[0029] Figure 2 This is a schematic diagram of the overall structure of this application.

[0030] Figure 3-Figure 5 This is a schematic diagram of the position of the normalizing coil of the heat treatment machine during flash welding of rails, that is, the normalizing coil of the heat treatment machine has enveloped the circumference of the rail.

[0031] Figure 6-Figure 8 Schematic diagram of the position of the normalizing coil of the heat treatment machine during heat treatment of rail welds, that is, the heat treatment normalizing coil is pushed to the weld by the translation cylinder.

[0032] Fig. 9 This is the overall structure diagram of the welding equipment.

[0033] Fig.10 This is the overall structure diagram of the welding equipment.

[0034] Figure 11-Figure 12 This is a schematic diagram of the structure of the tumor-pushing knife assembly.

[0035] Fig.13 This is a schematic diagram of the front clamping of the induction heat treatment machine.

[0036] Fig.14 This is a schematic diagram of the back of the induction heat treatment machine.

[0037] Fig.15 Schematic diagram of the heat treatment coil mold base.

[0038] In the attached figure: 1-pressure-maintaining and pushing mechanism, 2-moving frame clamping mechanism, 3-upsetting guide shaft mechanism, 4-pushing knife assembly, 5-clamping rail, 6-static frame clamping mechanism, 7-suspension mechanism, 8-heat treatment machine, 9-heat treatment machine fixing plate, 10-induction heat treatment machine translation guide rod, 11-induction heat treatment machine translation cylinder,

[0039] 101-push-bulb oil cylinder, 102-push-bulb tool holder,

[0040] 201-A center axis, 202-moving frame synchronous connecting rod mechanism, 203-moving frame clamping cylinder, 204-moving frame clamp,

[0041] 301- upsetting shaft, 302- guide shaft, 303- upsetting cylinder,

[0042] 401-hook handle, 402-left waist knife, 403-bottom knife, 404-top knife, 405-right waist knife, 406-cutting block,

[0043] 601-Stationary frame clamping cylinder, 602-Stationary frame synchronous connecting rod mechanism, 603-B center axis, 604-Stationary frame clamp,

[0044] 801-induction transformer, 802-bus, 803-fixed frame, 804-horizontal cylinder connecting seat, 805-air jet joint, 806-heat treatment normalizing coil, 807-slag stop plate A, 808-heat treatment normalizing coil mold base, 809-rail top temperature sensor, 810-slag stop plate B, 811-slag stop plate C, 812-rail bottom temperature sensor, 813-heat treatment normalizing coil clamping cylinder, 814-heat treatment machine translation guide rod slag cover, 815-heat treatment machine translation guide sleeve, 816-water channel block. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present application, it should be noted that the terms "upper", "vertical", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. They 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 specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Example 1

[0051] A suspended rail flash welding and induction heat treatment integrated machine comprises welding equipment and an induction heat treatment machine 8, wherein the welding equipment comprises a stationary frame clamping mechanism 6, a dynamic frame clamping mechanism 2, a pressure-maintaining nodule pushing mechanism 1, a nodule pushing knife assembly 4 and an upsetting guide shaft mechanism 3, wherein the dynamic frame clamping mechanism 2 and the stationary frame clamping mechanism 6 are suspended by a suspension mechanism 7, wherein the A center axis 201 of the dynamic frame clamping mechanism 2 and the B center axis 603 of the stationary frame clamping mechanism 6 are disconnected from each other, and an induction heat treatment machine 8 is arranged between the two, and an upsetting guide shaft mechanism 3 which passes through the stationary frame clamping mechanism 6 and the dynamic frame clamping mechanism 2 is arranged below the induction heat treatment machine 8, and a heat treatment normalizing coil 806 of the induction heat treatment machine 8 is located at the lower ends of the stationary frame clamping mechanism 6 and the dynamic frame clamping mechanism 2, and is enveloped on the circumference of the rail to be welded.

[0052] Furthermore, the induction heat treatment machine fixing plate 9 is fixed to the inner axial end surface of the B center axis 603 by bolts, the induction heat treatment machine translation guide rod 10 is fixed on both sides of the induction heat treatment machine fixing plate 9, and the heat treatment machine translation guide sleeve 815 on the induction heat treatment machine 8 is connected to the welding equipment as a whole through the induction heat treatment machine translation guide rod 10; the induction heat treatment machine translation cylinder 11 is installed and fixed in the axis of the B center axis 603, and the piston rod is connected to the fixed frame 803 of the induction heat treatment machine 8. The translation movement of the induction heat treatment machine 8 is realized by the extension and retraction of the piston rod, and the induction heat treatment machine 8 is sent to the weld to be heat treated.

[0053] Furthermore, an auxiliary guide shaft 302 connecting the stationary frame clamping mechanism 6 and the dynamic frame clamping mechanism 2 is provided above the induction heat treatment machine 8 .

[0054] Furthermore, the movable frame clamping mechanism 2 is hinged together by a group of symmetrical movable frame clamps 204 through the A center axis 201, the movable frame clamping oil cylinder 203 is horizontally installed on the upper part of the movable frame clamp 204, and a movable frame synchronous link mechanism 202 is arranged between a group of symmetrical movable frame clamps 204 to realize the clamping and tensioning action of the movable frame clamping mechanism 2, and the movable frame synchronous link mechanism 202 ensures the synchronous clamping and tensioning of the movable frame clamping mechanism 2. The static frame clamping mechanism is hinged together by a group of symmetrical static frame clamps 604 through the B center axis 603, the static frame clamping oil cylinder 601 is horizontally installed on the upper part of the static frame clamp 604, and a static frame synchronous link mechanism 602 is arranged between a group of symmetrical static frame clamps 604 to realize the clamping and tensioning action of the static frame clamping mechanism 6, and the static frame synchronous link mechanism 602 ensures the synchronous clamping and tensioning of the static frame clamping mechanism 6.

[0055] Furthermore, the upset guide shaft mechanism 3 includes an upset shaft 301, a guide shaft 302 and an upset oil cylinder 303. The piston rod of the upset oil cylinder 303 is connected to the upset shaft 301 by threads, and the cylinder body of the upset oil cylinder 303 is mounted and fixed on the static frame clamp 604, and the upset shaft 301 is fixed on the dynamic frame clamp 204. The forward and backward movement of the dynamic frame clamp mechanism 2 and the static frame clamp mechanism 6 is realized by the reciprocating motion of the piston rod of the upset oil cylinder 303, and finally the flash welding and upset in the welding process are realized.

[0056] Furthermore, the pressure-maintaining tumor-pushing mechanism 1 is installed on the movable frame clamp 204 of the movable frame clamping mechanism 2, and includes a tumor-pushing oil cylinder 101 and a tumor-pushing tool holder 102, and the tumor-pushing oil cylinder 101 is connected to the tumor-pushing tool holder 102 to realize tumor pushing during welding.

[0057] Furthermore, the tumor-pushing knife assembly 4 is placed close to the tumor-pushing knife holder 102 before welding. The tumor-pushing knife assembly 4 includes a hook handle 401, a left waist knife 402, a bottom knife 403, a top knife 404 and a right waist knife 405. The left waist knife 402, the bottom knife 403, the top knife 404 and the right waist knife 405 are symmetrically installed with a cutting block 406. The cutting block 406 is used to cut the welding strip when the rail is pushed, which is convenient for quickly cleaning the welding strip at the weld. The left waist knife 402, the bottom knife 403, the top knife 404 and the right waist knife 405 are hinged together through a hinge shaft, and then self-locked and fastened by the hook handle 401, and finally form the shape of the cross section of the rail to achieve the tumor pushing. This structure facilitates the rapid disassembly and installation of the tumor-pushing knife while realizing the tumor pushing function.

[0058] Furthermore, the induction heat treatment machine 8 includes an induction transformer 801, a heat treatment normalizing coil 806, a heat treatment normalizing coil clamping cylinder 813, a heat treatment normalizing coil die base 808 and a slag baffle assembly that can form a rail cross section. The actions of the induction heat treatment machine 8 are divided into translation of the heat treatment normalizing coil 806 and clamping of the heat treatment normalizing coil 806. The translation of the heat treatment normalizing coil 806 is achieved by the translation cylinder 11 of the induction heat treatment machine pushing the heat treatment fixed frame 803 to move on the translation guide rod 10 of the induction heat treatment machine. The clamping and opening of the heat treatment normalizing coil 806 are mainly achieved by the clamping cylinder 813 of the heat treatment normalizing coil. The cylinder body of the clamping cylinder 813 of the heat treatment normalizing coil is fixed to the fixed frame 803 through a support, and the cylinder piston rod is hinged to the heat treatment normalizing coil die base 808; the clamping and opening of the heat treatment normalizing coil 806 are achieved by the extension and contraction of the cylinder. The induction transformer 801 is fixed on the top of the fixed frame 803, and the secondary side of the transformer is connected to the heat treatment normalizing coil 806 through the bus 802; the heat treatment normalizing coil die base 808 is fixed on the left and right sides of the fixed frame 803 by hinged connection, and the heat treatment normalizing coil 806 is fixed on the heat treatment normalizing coil die base 808; the heat treatment normalizing coil die base 808 is opened and clamped by the heat treatment normalizing coil clamping cylinder 813, thereby realizing the conduction and disconnection of the heat treatment normalizing coil 806. The horizontal cylinder connecting seat 804 is fixed on the right side of the fixed frame 803, and is connected to the piston rod of the induction heat treatment machine translation cylinder 11 to realize the forward and backward movement of the induction heat treatment machine 8. The heat treatment machine translation guide sleeve 815 is fixed on the front and rear sides of the fixed frame 803, and cooperates with the induction heat treatment machine translation guide rod 10 to realize the translation movement of the induction heat treatment machine 8. The heat treatment machine translation guide rod slag shield 814 is fixed on the heat treatment machine translation guide sleeve 815. The water channel block 816 realizes the cooling of the induction transformer 801, the heat treatment normalizing coil 806 and the heat treatment normalizing coil die base 808 during the heat treatment process. Each coil of the heat treatment normalizing coil 806 is hollow, and both ends are connected to the water channel block 816 respectively.

[0059] The heat treatment normalizing coil die base 808 is provided with an air jet outlet and an air jet inlet for air jet cooling after the weld is heated. Compressed air is connected through the air jet connector 805.

[0060] Furthermore, the slag plate assembly includes slag plate A807, slag plate B810 and slag plate C811, which are symmetrically fixed on the back and front of the heat treatment normalizing coil die base 808, respectively. The slag plate A807 and the slag plate C811 form the shape of the rail cross section, which can effectively prevent the splashing welding slag from entering the heat treatment die base and protect the heat treatment normalizing coil 806. The slag plate B810 is fixed on the fixed frame 803, which can effectively prevent the splashing welding slag from entering the moving parts and the induction transformer 801.

[0061] The rail top temperature sensor 809 and the rail bottom temperature sensor 812 are installed on the heat treatment normalizing coil die base 808 to achieve real-time temperature control and real-time air injection control during the heat treatment process.

[0062] The present application is applicable to on-site rail welding. It can realize the two operation functions of welding and heat treatment by clamping the rail 5 at one time. The present application places the normalizing coil of the heat treatment machine at the lower end between the static frame and the dynamic frame of the welding machine, enveloping the circumference of the rail to be welded. After the welding equipment clamps and positions the rail, the heat treatment equipment is positioned on the rail. Before welding, the normalizing coil of the induction heat treatment machine 8 is translated to the position of the end of the rail to be welded by the translation mechanism, and the induction heat treatment normalizing coil 806 heats the end of the rail to reduce the flash time during the welding process and reduce the amount of burning of the rail. After the welding is completed, the normalizing coil of the induction heat treatment machine 8 is translated to the weld position by the translation mechanism to complete the heat treatment.

[0063] Example 2

[0064] This patented welding equipment mainly realizes the welding functions of two sections of rails: rail clamping and positioning, flash welding, upsetting, and nodule pushing. The induction heat treatment machine 8 mainly realizes the heating of the rail end before welding and the heat treatment normalizing of the weld after welding. Before the rail welding, the induction heat treatment machine 8 is translated to the position of the rail end to be welded by the translation mechanism, and the induction heat treatment normalizing coil 806 heats the rail end to reduce the flash time during the welding process and reduce the amount of rail burning. After the rail is welded, the heat treatment machine sprays air to cool the rail weld, and stops after the temperature drops to the pearlite transformation. During the weld heat treatment process, the rail weld temperature is heated to the solid phase transition temperature and then stopped, so that the rail is slowly cooled to room temperature, or some rail heads with less alloy components are sprayed with air to obtain sufficient hardness after the coil stops heating. Cool the weld and the weld softening zone.

[0065] The working steps of this patented device are as follows:

[0066] Step 1: Before welding, remove rust and oxide scale from the rail waist, hang the nodule removal knife to the end of the rail to be welded, retreat the heat treatment machine to the initial position, and keep the heat treatment normalizing coil 806 in the open state.

[0067] Step 2: After the static frame clamping mechanism 6 and the dynamic frame clamping mechanism 2 of the welding equipment clamp the rail and position it, before welding, the heat treatment normalizing coil 806 is closed, and the heat treatment machine is pushed to the end of the rail to be welded through the translation mechanism, and starts to heat the end of the rail to be welded. After heating to a certain temperature, the heat treatment equipment returns to the initial position, starts the welding system, and starts flash burning until the final welding upset is completed. The pressure-maintaining nodule-pushing mechanism 1 realizes the nodule-pushing of the weld, the tool holder returns, the welding strip is cleaned, and the nodule-pushing knife is removed;

[0068] The heat treatment normalizing coil 806 is arranged at the lower end and is wrapped around the circumference of the rail. The normalizing coil is opened and clamped by the oil cylinder on the heat treatment normalizing coil clamping oil cylinder 813, and the heat treatment machine normalizing coil is pushed from the initial position to the weld to be normalized by translating the oil cylinder 11.

[0069] Step 3: The induction heat treatment machine 8 is pushed to the weld through the translation mechanism and starts to spray air. After the weld temperature drops to a certain temperature, the heating coil starts to induction heat the weld. After the heating is completed, air is sprayed again to reduce the weld temperature to the process requirements.

[0070] Step 4: After the heat treatment air jet is completed, the heat treatment machine returns to its initial position, the coil opens, and finally the static frame clamping mechanism 6 and the dynamic frame clamping mechanism 2 of the welding equipment open to release the rails, completing the rail welding and weld heat treatment.

[0071] The present application is applicable to on-site rail welding. It can realize the two operation functions of welding and heat treatment by clamping the rail 5 at one time. The present application places the normalizing coil of the heat treatment machine at the lower end between the static frame and the dynamic frame of the welding machine, enveloping the circumference of the rail to be welded. After the welding equipment clamps and positions the rail, the heat treatment equipment is positioned on the rail. Before welding, the normalizing coil of the induction heat treatment machine 8 is translated to the position of the end of the rail to be welded by the translation mechanism, and the induction heat treatment normalizing coil 806 heats the end of the rail to reduce the flash time during the welding process and reduce the amount of burning of the rail. After the welding is completed, the normalizing coil of the induction heat treatment machine 8 is translated to the weld position by the translation mechanism to complete the heat treatment. The present application combines the induction heat treatment machine 8 with the welding machine as a whole, so that the weld heat treatment can be carried out after the flash welding is completed. It is also necessary to achieve effective isolation between the welding slag splash generated by the welding machine during the rail welding process and the induction heat treatment machine 8, so as to prevent the welding slag from flying into the conductive surface of the heat treatment normalizing coil 806, causing poor contact of the heat treatment normalizing coil 806 and affecting the weld heat treatment process. If the welding slag sticks to the surface of the heat treatment normalizing coil 806, it will also cause the coil to generate eddy currents during the heating process, causing the effective heating power to decrease or short-circuit. The surface of the induction heat treatment machine 8 is installed with a slag retaining plate that imitates the shape of a steel rail, which can effectively prevent welding slag from entering. The translation mechanism adopts a guide rod-guided method with a built-in slag retaining cover, which can effectively protect the moving parts. The heat treatment machine has real-time temperature monitoring and real-time air spraying functions. The present application adopts a tumor-pushing knife with the function of cutting off the welding strip. After the welding is completed, the annular welding strip is divided into several parts, which is more convenient to clean. Finally, the air jet outlet and air jet inlet of the equipment are directly integrated on the heat treatment normalizing coil die base 808, which realizes the function while reducing parts and pipelines. While realizing the function, the overall structure of the equipment is more compact and reasonable, the operation is simple, and the failure rate is low.

[0072] Example 3

[0073] In order to realize integration with the heat treatment machine, the center axis of the welding equipment is disconnected to leave space for placing the heat treatment machine. Two guide shafts 302 are arranged below to realize the top forging function. At the same time, two auxiliary guide shafts 302 are also arranged above. That is, a four-axis structure is adopted to connect the static frame and the dynamic frame clamping mechanism 2 into one.

[0074] as follows Fig. 9 As shown, the dynamic frame clamping mechanism 2 is mainly composed of a group of symmetrical clamps 204 hinged together through the A center axis 201, and the clamping cylinder 203 is horizontally installed on the upper part of the clamp 204 to realize the clamping and opening action of the dynamic frame clamping mechanism 2. The static frame clamping mechanism is mainly composed of a group of symmetrical clamps 604 hinged together through the B center axis 603, and the clamping cylinder 601 is horizontally installed on the upper part of the clamp 604 to realize the clamping and opening action of the static frame clamping mechanism 6. The upsetting guide shaft mechanism 3 is mainly composed of an upsetting shaft 301, a guide shaft 302 and an upsetting cylinder 303. The piston rod of the upsetting cylinder 303 is connected to the upsetting shaft 301 by threads, and the cylinder body of the upsetting cylinder 303 is installed and fixed on the static frame clamp 604, and the upsetting shaft 301 is fixed on the dynamic frame clamp 204. The forward and backward movement of the dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are achieved through the reciprocating motion of the piston rod of the upset cylinder 303, and finally the flash welding and upset forging in the welding process are achieved.

[0075] as follows Figure 3 , Figure 4 , Figure 5 and Figure 6 , Figure 7 , Figure 8 As shown, the heat treatment normalizing coil 806 is at the lower end, enveloping the circumference of the steel rail to be welded. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are suspended by the suspension mechanism 7. The dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are connected together by the upset guide shaft mechanism 3. The heat treatment machine fixing plate 9 is fixed to the inner shaft end surface of the central axis 603 of the welding equipment B by bolts, and the induction heat treatment machine translation guide rod 1011 is fixed on both sides of the fixing plate 9. The induction heat treatment machine 8 is connected to the welding equipment as a whole through the induction heat treatment machine translation guide rod 10. The heat treatment machine translation cylinder 11 is installed and fixed in the axis of the central axis 603 of B, and the translation movement of the induction heat treatment machine 8 is realized by the extension and contraction of the piston rod, and the induction heat treatment machine 8 is sent to the weld to be heat treated.

[0076] The induction heat treatment machine 8 integrates the air jet outlet and the air jet inlet with the heat treatment die base. The slag baffle is made into a rail-like shape and installed on the heat treatment die base. The position of the normalizing coil of the induction heat treatment machine 8 is different, and the functions achieved are different.

[0077] This solution is mainly composed of welding equipment and induction heat treatment machine 8. The welding equipment mainly includes pressure-maintaining and pushing mechanism 1, dynamic frame clamping mechanism 2, upsetting guide shaft mechanism 3, pushing knife assembly 4, static frame clamping mechanism 6, suspension mechanism 7, etc. Figure 1 and Figure 2 shown.

[0078] In this solution, the dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are suspended by a suspension mechanism 7 .

[0079] In this solution, the dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are connected together through the upset forging guide shaft mechanism 3.

[0080] The induction heat treatment machine fixing plate 9 in this scheme is fixed to the inner axial end face of the central axis 603 of the welding equipment B by bolts, the induction heat treatment machine translation guide rod 10 is fixed on both sides of the fixing plate 9, and the induction heat treatment machine 8 is connected to the welding equipment as a whole through the induction heat treatment machine translation guide rod 10.

[0081] The induction heat treatment machine translation cylinder 11 in this solution is installed and fixed in the B center axis 603, and the induction heat treatment machine 8 is translated by the extension and contraction of the piston rod to send the induction heat treatment machine 8 to the weld to be heat treated.

[0082] This patent combines the induction heat treatment machine 8 with the welding machine as one, which meets the requirement that the weld heat treatment can be carried out after the flash welding is completed. It also needs to meet the requirement that the welding slag splash generated by the welding machine during the rail welding process is effectively isolated from the induction heat treatment machine 8 to prevent the welding slag from flying into the conductive surface of the heat treatment normalizing coil 806, causing poor contact of the heat treatment normalizing coil 806 and affecting the weld heat treatment process. If the welding slag sticks to the surface of the heat treatment normalizing coil 806, it will also cause eddy currents in the coil during the heating process, causing a decrease in effective heating power or a short circuit.

[0083] This patent provides a suspended rail flash welding and induction heat treatment all-in-one machine, which can realize rail flash welding equipment that clamps the rail 5 at one time to complete both welding and heat treatment operations. The welding equipment included in the all-in-one equipment mainly consists of a static frame clamping mechanism 6, a dynamic frame clamping mechanism 2, a pressure-maintaining nodule pushing mechanism 1, a nodule pushing knife assembly 4, and a top forging guide shaft mechanism 3; the induction heat treatment machine 8 is mainly composed of an induction transformer 801, a heat treatment normalizing coil 806, a heat treatment normalizing coil clamping cylinder 813, a heat treatment equipment translation mechanism, a heat treatment die base and a slag baffle plate assembly fixed thereon, a temperature sensor, etc.

[0084] The welding equipment of this patent mainly realizes the welding functions of two sections of rails: rail clamping and positioning, flash welding, upsetting, and nodule pushing. The induction heat treatment machine 8 of this patent mainly realizes the heating of the rail end before welding and the heat treatment of the weld after welding. Before the rail welding, the induction heat treatment machine 8 is translated to the position of the rail end to be welded by the translation mechanism, and the induction heat treatment normalizing coil 806 heats the rail end to reduce the flash time during the welding process and reduce the amount of rail burning. After the rail welding, the heat treatment machine of this patent sprays air to cool the rail weld, and stops after the temperature drops to the pearlite transformation. During the weld heat treatment process of this patent, the rail weld temperature is heated to the solid phase transition temperature and then the heating is stopped, so that the rail is slowly cooled to room temperature, or some rail heads with less alloy components are sprayed with air to cool the weld and the welding softening zone after the coil stops heating in order to obtain sufficient hardness.

[0085] The working steps of this patented device are as follows:

[0086] Step 1: Before welding, remove rust and oxide scale from the rail waist, hang the nodule removal knife to the end of the rail to be welded, retreat the heat treatment machine to the initial position, and keep the heat treatment normalizing coil 806 in the open state.

[0087] Step 2: After the static frame clamping mechanism 6 and the dynamic frame clamping mechanism 2 of the welding equipment clamp the rail into position, before welding, the heat treatment normalizing coil 806 is closed, and the heat treatment machine is pushed to the end of the rail to be welded through the translation mechanism, and starts to heat the end of the rail to be welded. After heating to a certain temperature, the heat treatment equipment returns to the initial position, starts the welding system, and starts flash burning until the final welding top forging is completed. The pressure-maintaining nodule pushing mechanism 1 realizes the weld nodule pushing, the tool holder returns, the weld strip is cleaned, and the nodule pushing knife is removed.

[0088] Step 3: The induction heat treatment machine 8 is pushed to the weld through the translation mechanism and starts to spray air. After the weld temperature drops to a certain temperature, the heating coil starts to induction heat the weld. After the heating is completed, air is sprayed again to reduce the weld temperature to the process requirements.

[0089] Step 4: After the heat treatment air jet is completed, the heat treatment machine returns to its initial position, the coil opens, and finally the static frame clamping mechanism 6 and the dynamic frame clamping mechanism 2 of the welding equipment open to release the rails, completing the rail welding and weld heat treatment.

[0090] This solution is mainly composed of welding equipment and induction heat treatment machine 8. The welding equipment mainly includes pressure-maintaining and pushing mechanism 1, dynamic frame clamping mechanism 2, upsetting guide shaft mechanism 3, pushing knife assembly 4, static frame clamping mechanism 6, suspension mechanism 7, etc. Figure 1 , Figure 2 shown.

[0091] In this solution, the dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are suspended by a suspension mechanism 7 .

[0092] In this solution, the dynamic frame clamping mechanism 2 and the static frame clamping mechanism 6 are connected together through the upset forging guide shaft mechanism 3.

[0093] The induction heat treatment machine fixing plate 9 in this scheme is fixed to the inner axial end face of the central axis 603 of the welding equipment B by bolts, the induction heat treatment machine translation guide rod 10 is fixed on both sides of the fixing plate 9, and the heat treatment machine translation guide sleeve 815 on the induction heat treatment machine 8 passes through the guide rod 10, connecting the heat treatment machine and the welding equipment into one.

[0094] The cylinder body of the induction heat treatment machine translation cylinder 11 in this scheme is installed and fixed in the B center axis 603, and the piston rod is connected to the fixed frame 803 of the induction heat treatment machine 8. The translation movement of the induction heat treatment machine 8 is realized by the extension and contraction of the cylinder piston rod, and the induction heat treatment machine 8 is sent to the weld to be heat treated.

[0095] The welding equipment in this scheme mainly realizes the welding functions of two sections of rails: rail clamping and positioning, flash welding, upsetting, and pushing. Fig. 9 shown.

[0096] In this solution, the movable frame clamping mechanism 2 is mainly composed of a group of symmetrical clamps 204 hinged together through the A center axis 201, and the clamping cylinder 203 is horizontally installed on the upper part of the clamp 204 to realize the clamping and opening action of the movable frame clamping mechanism 2. The synchronous connecting rod mechanism 202 ensures the synchronous clamping and opening of the movable frame clamping mechanism 2.

[0097] In this solution, the stationary frame clamping mechanism is mainly composed of a group of symmetrical clamps 604 hinged together through the B center axis 603, and the clamping cylinder 601 is horizontally installed on the upper part of the clamp 604 to realize the clamping and opening action of the stationary frame clamping mechanism 6. The 602 synchronous connecting rod mechanism ensures the synchronous clamping and opening of the stationary frame clamping mechanism 6.

[0098] In this solution, the upset guide shaft mechanism 3 is mainly composed of an upset shaft 301, a guide shaft 302 and an upset cylinder 303. The piston rod of the upset cylinder 303 is connected to the upset shaft 301 by threads, and the cylinder body of the upset cylinder 303 is mounted and fixed on the static frame clamp 604, and the upset shaft 301 is fixed on the dynamic frame clamp 204. The forward and backward movement of the dynamic frame clamp mechanism 2 and the static frame clamp mechanism 6 is realized by the reciprocating motion of the piston rod of the upset cylinder 303, and finally the flash welding and upset in the welding process are realized.

[0099] In this solution, the pressure-maintaining and bulge-pushing mechanism 1 is installed on the movable frame clamp 204, and is mainly composed of a bulge-pushing cylinder 101 and a bulge-pushing tool holder 102, so as to realize bulge-pushing during welding.

[0100] In this solution, the tumor-removing knife assembly 4 is placed close to the tumor-removing knife holder 102 before welding.

[0101] The tumor-pushing knife assembly 4 is mainly composed of a hook handle 401, a left waist knife 402, a bottom knife 403, a top knife 404, a right waist knife 405, and a cutting block 406. The left waist knife 402, the bottom knife 403, the top knife 404, and the right waist knife 405 are symmetrically installed with a cutting block 406, which is used to cut the welding strip when the rail is pushing the tumor, so as to facilitate the rapid cleaning of the welding strip at the weld. The left waist knife 402, the bottom knife 403, the top knife 404, and the right waist knife 405 are hinged together through a hinge shaft, and then self-locked and fastened through the hook handle 401, and finally form the shape of the rail cross section to achieve the tumor pushing. This structure facilitates the rapid disassembly and installation of the tumor-pushing knife while realizing the tumor pushing function.

[0102] In this scheme, the induction heat treatment machine 8 components mainly include an induction transformer 801, a heat treatment normalizing coil 806, a heat treatment normalizing coil clamping cylinder 813, a heat treatment equipment translation mechanism, a heat treatment normalizing coil die base 808 and a slag baffle assembly fixed thereon, a temperature sensor, etc. ( Fig.13 , Fig.14 )

[0103] The actions of the induction heat treatment machine 8 are divided into translation of the heat treatment normalizing coil 806 and clamping of the heat treatment normalizing coil 806 .

[0104] The heat treatment normalizing coil 806 is translated by the translation cylinder 11 pushing the heat treatment fixed frame 803 to move on the translation guide rod 10 to achieve translation.

[0105] The clamping and opening of the heat treatment normalizing coil 806 is mainly achieved through the heat treatment normalizing coil clamping cylinder 813.

[0106] In this solution, the cylinder body of the heat treatment normalizing coil clamping cylinder 813 is fixed on the fixed frame 803 through a support, and the cylinder piston rod is hinged with the heat treatment normalizing coil die base 808. The clamping and opening of the heat treatment normalizing coil 806 are achieved by the extension and contraction of the cylinder.

[0107] In this solution, the induction transformer 801 is fixed above the fixing frame 803 , and the secondary side of the transformer is connected to the heat treatment normalizing coil 806 through the bus bar 802 .

[0108] In this solution, the heat treatment normalizing coil die base 808 is fixed to the left and right sides of the fixing frame 803 by hinged connection, and the heat treatment normalizing coil 806 is fixed on the heat treatment normalizing coil die base 808 .

[0109] In this solution, the heat treatment normalizing coil die base 808 is opened and clamped by the heat treatment normalizing coil clamping cylinder 813, thereby realizing the conduction and disconnection of the heat treatment normalizing coil 806.

[0110] The horizontal cylinder connecting seat 804 in this solution is fixed to the right side of the fixing frame 803 and is connected to the piston rod of the translation cylinder 11 of the induction heat treatment machine to realize the forward and backward movement of the induction heat treatment machine 8.

[0111] In this solution, the heat treatment machine translation guide sleeve 815 is fixed to the front and rear sides of the fixed frame 803, and cooperates with the induction heat treatment machine translation guide rod 10 to realize the translation movement of the induction heat treatment machine 8.

[0112] The heat treatment machine translation guide rod slag blocking cover 814 in this solution is fixed on the heat treatment machine translation guide sleeve 815.

[0113] The slag retaining plates 807 A807 and 811 C811 in this solution are symmetrically fixed on the back and front sides of the heat treatment normalizing coil die base 808 respectively. The slag retaining plates form the shape of the rail cross section and can effectively prevent splashing welding slag from entering the heat treatment die base, thereby protecting the heat treatment normalizing coil 806.

[0114] The slag blocking plate 810 B810 in this solution is fixed on the fixing frame 803 , which can effectively prevent the splashing welding slag from entering the moving parts and the induction transformer 801 .

[0115] The water channel block 816 in this solution realizes cooling of the induction transformer 801, the heat treatment normalizing coil 806 and the heat treatment normalizing coil die base 808 during the heat treatment process. Each coil of the heat treatment normalizing coil 806 is hollow, and both ends are connected to the water channel block 816 respectively.

[0116] The heat treatment die base 808 in this solution is provided with an air jet outlet and an air jet inlet for air jet cooling after the weld is heated. Compressed air is connected through the air jet connector 805. The rail top temperature sensor 809 and the rail bottom temperature sensor 812 are installed on the heat treatment normalizing coil die base 808 to achieve real-time temperature control and real-time air jet control during the heat treatment process.

Claims

1. A suspended rail flash welding and induction heat treatment integrated machine, characterized in that: The invention comprises welding equipment and an induction heat treatment machine (8), wherein the welding equipment comprises a stationary frame clamping mechanism (6), a movable frame clamping mechanism (2), a pressure-maintaining and pushing mechanism (1), a pushing knife assembly (4) and an upsetting guide shaft mechanism (3); the movable frame clamping mechanism (2) and the stationary frame clamping mechanism (6) are suspended by a suspension mechanism (7); the A center axis (201) of the movable frame clamping mechanism (2) and the B center axis (603) of the stationary frame clamping mechanism (6) are disconnected from each other; an induction heat treatment machine (8) is arranged between the two; an upsetting guide shaft mechanism (3) penetrating the stationary frame clamping mechanism (6) and the movable frame clamping mechanism (2) is arranged below the induction heat treatment machine (8); a heat treatment normalizing coil (806) of the induction heat treatment machine (8) is located at the lower ends of the stationary frame clamping mechanism (6) and the movable frame clamping mechanism (2), and is enveloped on the circumference of the steel rail to be welded; The induction heat treatment machine fixing plate (9) is fixed on the inner side shaft end surface of the B center axis (603), the induction heat treatment machine translation guide rod (10) is fixed on both sides of the induction heat treatment machine fixing plate (9), and the heat treatment machine translation guide sleeve (815) on the induction heat treatment machine (8) is connected to the welding equipment through the induction heat treatment machine translation guide rod (10) to form an integral whole; the induction heat treatment machine translation cylinder (11) is installed and fixed in the B center axis (603), and the piston rod of the induction heat treatment machine translation cylinder is connected to the fixing frame (803) of the induction heat treatment machine (8); The induction heat treatment machine (8) comprises an induction transformer (801), a heat treatment normalizing coil (806), a heat treatment normalizing coil clamping cylinder (813), a heat treatment normalizing coil die base (808) and a slag plate assembly constituting a cross section of a rail; the slag plate assembly comprises a slag plate A (807), a slag plate B (810) and a slag plate C (811); the slag plate A (807) and the slag plate C (811) are symmetrically fixed on the back and front sides of the heat treatment normalizing coil die base (808), respectively; the slag plate A (807) and the slag plate C (811) form the shape of the cross section of the rail; the slag plate B (810) is fixed on a fixing frame (803); and a rail top temperature sensor (809) and a rail bottom temperature sensor (812) are installed on the heat treatment normalizing coil die base (808); Each coil of the heat treatment normalizing coil (806) is hollow, and both ends are connected to the water channel block (816) respectively; the heat treatment normalizing coil die base (808) is provided with a jet outlet and a jet inlet, which are used for jet cooling after the weld is heated, and compressed air is connected through the jet connector (805).

2. The suspended rail flash welding and induction heat treatment integrated machine according to claim 1, characterized in that: An auxiliary guide shaft (302) connecting the static frame clamping mechanism (6) and the dynamic frame clamping mechanism (2) is arranged above the induction heat treatment machine (8).

3. The suspended rail flash welding and induction heat treatment integrated machine according to claim 1, characterized in that: The movable frame clamping mechanism (2) is composed of a group of symmetrical movable frame clamps (204) hinged together through the A center axis (201), the movable frame clamping cylinder (203) is horizontally installed on the upper part of the movable frame clamp (204), and a movable frame synchronous connecting rod mechanism (202) is arranged between the group of symmetrical movable frame clamps (204). The static frame clamping mechanism is composed of a group of symmetrical static frame clamps (604) hinged together through the B center axis (603), the static frame clamping cylinder (601) is horizontally installed on the upper part of the static frame clamp (604), and a static frame synchronous connecting rod mechanism (602) is arranged between the group of symmetrical static frame clamps (604).

4. The suspended rail flash welding and induction heat treatment integrated machine according to claim 1, characterized in that: The upsetting guide shaft mechanism (3) comprises an upsetting shaft (301), a guide shaft (302) and an upsetting oil cylinder (303); the piston rod of the upsetting oil cylinder (303) and the upsetting shaft (301) are connected to each other as a whole through threads; the cylinder body of the upsetting oil cylinder (303) is mounted and fixed on a stationary frame clamp (604); and the upsetting shaft (301) is fixed on a movable frame clamp (204).

5. The suspended rail flash welding and induction heat treatment integrated machine according to claim 1, characterized in that: The pressure-maintaining tumor-pushing mechanism (1) is mounted on a movable frame clamp (204) of a movable frame clamping mechanism (2), and comprises a tumor-pushing oil cylinder (101) and a tumor-pushing tool holder (102); the tumor-pushing oil cylinder (101) is connected to the tumor-pushing tool holder (102).

6. The suspended rail flash welding and induction heat treatment integrated machine according to claim 5, characterized in that: The tumor-pushing knife assembly (4) is placed close to the tumor-pushing knife holder (102) before welding. The tumor-pushing knife assembly (4) comprises a hook handle (401), a left waist knife (402), a bottom knife (403), a top knife (404) and a right waist knife (405). Cutting blocks (406) are symmetrically mounted on the left waist knife (402), the bottom knife (403), the top knife (404) and the right waist knife (405). The left waist knife (402), the bottom knife (403), the top knife (404) and the right waist knife (405) are hinged together through a hinge shaft and then self-locked and fastened through the hook handle (401). Finally, the hollowed-out portion forms the shape of a rail cross section.

7. The suspended rail flash welding and induction heat treatment integrated machine according to claim 1, characterized in that: The cylinder body of the heat treatment normalizing coil clamping cylinder (813) is fixed on the fixed frame (803) through a support, and the cylinder piston rod is hinged to the heat treatment normalizing coil die base (808); the induction transformer (801) is fixed on the top of the fixed frame (803), and the secondary side of the transformer is connected to the heat treatment normalizing coil (806) through a bus bar (802); the heat treatment normalizing coil die base (808) is fixed on the left and right sides of the fixed frame (803), and the heat treatment normalizing coil (806) is connected to the heat treatment normalizing coil die base (808). 06) is fixed on the heat treatment normalizing coil die base (808); the horizontal cylinder connecting seat (804) is fixed on the right side of the fixed frame (803) and is connected to the piston rod of the induction heat treatment machine translation cylinder (11); the heat treatment machine translation guide sleeve (815) is fixed on the front and rear sides of the fixed frame (803) and cooperates with the induction heat treatment machine translation guide rod (10); the heat treatment machine translation guide rod slag cover (814) is fixed on the heat treatment machine translation guide sleeve (815).

8. A suspended rail flash welding and induction heat treatment integrated machine according to any one of claims 1 to 7, characterized in that: The working steps are as follows: Step 1: Before welding, the rail waist is treated for rust and oxide scale removal, a nodule removal knife is hung on the end of the rail to be welded, the induction heat treatment machine (8) is returned to the initial position, and the heat treatment normalizing coil (806) is in an open state; Step 2: After the static frame clamping mechanism (6) and the dynamic frame clamping mechanism (2) of the welding equipment clamp the rail and position it, before welding, the heat treatment normalizing coil (806) is closed, and the induction heat treatment machine (8) is pushed to the end of the rail to be welded through the translation mechanism to start heating the end of the rail to be welded. After heating, the induction heat treatment machine (8) returns to the initial position, the welding system is started, and flash burning begins until the final welding upsetting is completed. The pressure-maintaining nodule pushing mechanism (1) realizes the nodule pushing of the weld, the tool holder is withdrawn, the welding strip is cleaned, and the nodule pushing knife is removed; The heat treatment normalizing coil (806) is arranged at the lower end and is wrapped around the circumference of the rail. The heat treatment normalizing coil (806) is opened and clamped by the oil cylinder on the heat treatment normalizing coil clamping oil cylinder (813). The heat treatment normalizing coil is pushed from the initial position to the weld to be normalized by translating the oil cylinder. Step 3: The induction heat treatment machine (8) is pushed to the weld by the translation mechanism and starts to spray air. After the weld temperature drops to a certain temperature, the heating coil starts to induction heat the weld. After the heating is completed, the air is sprayed again to reduce the weld temperature to the process requirement. Step 4: After the heat treatment air jet is completed, the heat treatment machine returns to its initial position, the coil is opened, and finally the static frame clamping mechanism (6) and the dynamic frame clamping mechanism (2) of the welding equipment are opened to release the rail, thus completing the rail welding and weld heat treatment.

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