Electrode assembly for orbital welding machine

Abstract

The utility model discloses a rail welding machine electrode assembly belongs to rail welding equipment technical field, and this assembly includes electrode holder and the copper block of detachable installation in electrode holder, the copper block inside is provided with water cooling assembly, and its one end is equipped with the plug and the electric connection of the socket inside electrode holder, still includes dismounting assembly, the dismounting assembly includes fixed base, the eccentric wheel handle of rotation connection in fixed base, the sliding sleeve of accomodating in fixed base, and the spring of the insertion rod linkage with sliding sleeve, rotates eccentric wheel handle, and its eccentric part extrudes sliding sleeve, and then promotes insertion rod to extend and is clamped into the copper block's card slot and realizes quick locking, reversely rotates, and spring resets and promotes insertion rod to separate card slot and realizes quick unlocking. The utility model solves the copper block dismounting complicated, time -consuming and labor -intensive problem in the prior art, has the advantage that copper block can be replaced quickly without tool, convenient operation, compact structure, and the operating efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of track welding equipment technology, and in particular to electrode assemblies for track welding machines. Background Technology

[0002] The rail welding machine is a key piece of equipment for achieving seamless rail track laying. It generates high temperatures by applying a large current to both ends of the rail joint, thereby achieving rail welding. In this process, the electrode assembly, as the core component of the welding machine, is responsible for stably transmitting the welding current to the rail. The part of the electrode assembly that directly contacts the rail and conducts the current is usually a copper block, also known as the electrode block.

[0003] Under the harsh conditions of high temperature, high current, and mechanical extrusion in welding operations, copper blocks will inevitably experience wear, arc erosion, and even thermal deformation. Therefore, copper blocks are consumable parts and need to be inspected and replaced regularly according to their wear condition to ensure the stability of welding quality and operational safety.

[0004] In existing technical solutions, multiple bolts are typically used for fastening to ensure the secure connection between the copper block and the electrode holder, as well as the reliability of current transmission. However, this method of fixing has revealed significant shortcomings in practical applications. When a worn copper block needs to be replaced, on-site operators must use specialized tools to loosen or tighten multiple bolts one by one. This process is not only cumbersome but also particularly time-consuming and labor-intensive in confined working environments, significantly reducing the efficiency of equipment maintenance and replacement of vulnerable parts, extending the overall downtime of welding operations, and directly impacting the progress of line construction.

[0005] Therefore, this utility model proposes an electrode assembly for a track welding machine to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an electrode assembly for a track welding machine, which aims to improve the problems of cumbersome disassembly and assembly, time-consuming replacement, and low heat dissipation efficiency of the copper blocks in the electrode assembly of the track welding machine in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an electrode assembly for a rail welding machine, comprising: an electrode base, and a copper block detachably mounted on the electrode base, one end of the copper block being provided with a plug, the electrode base being provided with a corresponding socket that mates with the plug, the copper block being provided with a water cooling assembly, and also including a disassembly assembly, the disassembly assembly being used to lock the copper block to the electrode base;

[0008] The assembly / disassembly assembly includes a fixed base, an eccentric wheel handle, a sliding sleeve, a plug rod, and a spring. The fixed base is fixedly connected to the electrode base, the eccentric wheel handle is rotatably connected to the fixed base, the sliding sleeve is slidably housed within the fixed base and abuts against the eccentric portion of the eccentric wheel handle, the plug rod coaxially passes through the sliding sleeve and slides in conjunction with it, the copper block has a slot that mates with the plug rod, and the spring is sleeved on the plug rod and located between the sliding sleeve and the inner wall of the fixed base.

[0009] Preferably, the copper block is provided with a slider, which slides in conjunction with a groove on the electrode holder to guide the copper block to be installed on the electrode holder.

[0010] Preferably, when the eccentric wheel handle is rotated to the locked position, the eccentric part of the eccentric wheel handle circumferentially presses against the sliding sleeve, the sliding sleeve moves axially and compresses the spring, and at the same time pushes the end of the insertion rod to extend and engage with the slot.

[0011] Preferably, the water cooling assembly includes: an inlet head and an outlet head, both of which are disposed on the copper block; a diverter connector connected to the inlet head; and a water supply pipe connected to the diverter connector and extending into the interior of the copper block.

[0012] Preferably, there are multiple water supply pipes, and the diverter is used to distribute the cooling water from the water inlet to the multiple water supply pipes.

[0013] Preferably, the water-cooling assembly further includes an output pipe, which collects the cooling water flowing through the inside of the copper block and is connected to the water outlet.

[0014] Preferably, the mounting base of the disassembly assembly is connected to the electrode base by bolts.

[0015] Preferably, the outlets of the plurality of water pipes are located in the area inside the copper block where concentrated heat dissipation is required.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem of cumbersome and time-consuming disassembly and assembly caused by the use of bolts to fix copper blocks in the prior art, by setting up a disassembly and assembly assembly consisting of an eccentric wheel handle, a sliding sleeve, a plug rod and a spring. It achieves the effect of quickly locking and releasing copper blocks without tools, which significantly improves the efficiency of on-site operation and maintenance.

[0018] 2. This utility model solves the problem of uneven or inefficient heat dissipation of electrode components in the prior art, which easily leads to local overheating, deformation or even sticking of the copper block, by setting a water cooling component consisting of an inlet head, an outlet head, a diverter and a water supply pipe inside the copper block. It achieves efficient and uniform forced circulation cooling of the copper block, ensures stable temperature during the welding process, thereby improving welding quality and extending the service life of the copper block. Attached Figure Description

[0019] Figure 1 This is a perspective view of the electrode assembly for the track welding machine proposed in this utility model;

[0020] Figure 2 This is a schematic diagram showing the disassembled electrode holder and copper block of the electrode assembly for the track welding machine proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the back side of the copper block of the electrode assembly for the track welding machine proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the assembly and disassembly of the electrode assembly for the track welding machine proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the water-cooling component of the electrode assembly for the track welding machine proposed in this utility model.

[0024] Legend:

[0025] 1. Electrode holder; 2. Copper block; 3. Assembly / disassembly assembly; 301. Fixing base; 302. Sliding sleeve; 303. Insert rod; 304. Spring; 305. Eccentric wheel handle; 306. Slider; 4. Plug; 5. Water cooling assembly; 501. Water inlet head; 502. Water outlet head; 503. Diverter connector; 504. Water supply pipe; 505. Output pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-5The present invention provides an embodiment of an electrode assembly for a rail welding machine, comprising an electrode base 1 and a copper block 2 detachably mounted on the electrode base 1. The copper block 2 may be made of chromium zirconium copper, beryllium copper, tungsten copper, or alumina copper. One end of the copper block 2 is provided with a plug 4. The electrode base 1 is provided with a corresponding socket that mates with the plug 4 to realize the power transmission between the electrode base 1 and the copper block 2. The copper block 2 is provided with a water cooling component 5, which is used to circulate and cool the copper block 2 during welding operations. The electrode assembly for the rail welding machine also includes a disassembly and assembly component 3, which is used to quickly lock the copper block 2 onto the electrode base 1 or quickly release it from the electrode base 1.

[0028] Specifically, the disassembly / assembly assembly 3 includes a fixed base 301, an eccentric wheel handle 305, a sliding sleeve 302, a plug rod 303, and a spring 304. The fixed base 301 is fixedly connected to the electrode base 1, serving as the mounting base for the disassembly / assembly assembly 3. The eccentric wheel handle 305 is rotatably connected to the fixed base 301 and has an eccentric portion. The sliding sleeve 302 is slidably housed within the fixed base 301, with one end of the sliding sleeve 302 being aligned with the eccentric portion of the eccentric wheel handle 305. The core abuts against the sliding sleeve 302, and the insertion rod 303 coaxially passes through the sliding sleeve 302 and slides in conjunction with it. The copper block 2 has a slot that cooperates with the insertion rod 303. When the insertion rod 303 extends, the end of the insertion rod 303 is inserted into the slot of the copper block 2 to lock the copper block 2. The spring 304 is sleeved on the insertion rod 303 and is located between the inner wall of the sliding sleeve 302 and the fixed seat 301. The spring 304 always applies a reset thrust to the sliding sleeve 302.

[0029] To enable quick installation and removal between the copper block 2 and the electrode holder 1, a sliding groove is provided on the electrode holder 1, and a corresponding slider 306 is provided on the copper block 2. During installation, the slider 306 of the copper block 2 is first aligned with the sliding groove of the electrode holder 1, and the slider 306 slides and engages within the sliding groove. This structure can guide the copper block 2 to smoothly insert into or slide out of the electrode holder 1 along a preset path, ensuring that the plug 4 of the copper block 2 can be accurately aligned and connected with the socket inside the electrode holder 1.

[0030] Once the copper block 2 reaches the installation position, the operator rotates the eccentric wheel handle 305. Since the eccentric wheel handle 305 is rotatably connected to the fixed base 301, the eccentric portion of the eccentric wheel handle 305 circumferentially presses against the sliding sleeve 302, forcing the sliding sleeve 302 to move axially along the insertion rod 303 within the fixed base 301. This movement of the sliding sleeve 302 compresses the spring 304. Simultaneously, the end of the insertion rod 303, which is linked to the sliding sleeve 302, is pushed out and precisely engaged in the pre-set slot of the copper block 2. The tightness between the insertion rod 303 and the slot... The locking mechanism securely locks the copper block 2 onto the electrode base 1. When the copper block 2 needs to be removed, the eccentric wheel handle 305 is rotated in the opposite direction. The eccentric part of the eccentric wheel handle 305 releases the pressure on the sliding sleeve 302. Under the elastic force stored in the spring 304, the spring 304 pushes the sliding sleeve 302 and the insertion rod 303 to quickly reset, causing the insertion rod 303 to disengage from the slot of the copper block 2, thereby releasing the lock on the copper block 2. At this time, the copper block 2 can be smoothly removed along the slide. The whole process does not require any additional tools and is extremely convenient to operate.

[0031] To efficiently remove the large amount of heat generated during the welding process of the copper block 2, the water cooling assembly 5 includes an inlet head 501 and an outlet head 502 installed on the copper block 2. The inlet head 501 is connected to a diverter 503, which is located inside the copper block 2 and is used to distribute the cooling water from the inlet head 501 to multiple water pipes 504. The multiple water pipes 504 extend from the diverter 503 into the interior of the copper block 2, and the outlets of the multiple water pipes 504 are located in the areas inside the copper block 2 that require concentrated heat dissipation. The water cooling assembly 5 also includes an outlet pipe 505, which is used to collect the cooling water flowing through the interior of the copper block 2 and is connected to the outlet head 502, thereby forming a complete circulating heat dissipation path inside the copper block 2. To ensure the stability and reliability of the connection between the disassembly assembly 3 and the electrode holder 1, the fixing seat 301 of the disassembly assembly 3 and the electrode holder 1 are fixed by bolt connection.

[0032] Working principle: When installing copper block 2, first align the slider 306 of copper block 2 with the groove of electrode seat 1 and push it in. When copper block 2 reaches the predetermined position, rotate the eccentric wheel handle 305. The eccentric part of the eccentric wheel handle 305 squeezes the sliding sleeve 302, so that the sliding sleeve 302 slides axially in the fixed seat 301, thereby compressing the spring 304 and pushing the insertion rod 303 in conjunction. The end of the insertion rod 303 extends out and is inserted into the slot of copper block 2, realizing the rapid locking of copper block 2. During this process, the plug 4 on copper block 2 is also connected to the socket inside electrode seat 1 to form a conductive path.

[0033] During the track welding operation, electrical energy is transmitted to the copper block 2 through the conductive path formed by the electrode seat 1 and the plug 4. At the same time, the water cooling component 5 starts to work. Cooling water enters from the inlet head 501, and is distributed to multiple water pipes 504 through the diverter 503. The water pipes 504 deliver the cooling water to the heat-generating area inside the copper block 2 to absorb heat. After absorbing heat, the cooling water is collected through the outlet pipe 505 and flows out from the outlet head 502, completing the continuous cooling of the copper block 2.

[0034] When it is necessary to disassemble or replace copper block 2, rotate the eccentric wheel handle 305 in the opposite direction. The eccentric part of the eccentric wheel handle 305 releases the compression of the sliding sleeve 302. Under the action of the reset elastic force of the spring 304, the spring 304 pushes the sliding sleeve 302 and the insertion rod 303 back to the initial position. The insertion rod 303 disengages from the slot of copper block 2, unlocking copper block 2. At this time, copper block 2 can be removed from electrode seat 1 along the slide groove.

Claims

1. Electrode assembly for a rail welding machine, including: Electrode holder (1), wherein a sliding groove is provided on the electrode holder (1); A copper block (2) is detachably installed on the electrode base (1). One end of the copper block (2) is provided with a plug (4). The electrode base (1) is provided with a socket that matches the plug (4). A water cooling component (5) is provided inside the copper block (2). Its characteristic is that it further includes: The disassembly and assembly assembly (3) is used to lock the copper block (2) to the electrode seat (1). The disassembly and assembly assembly (3) includes: a fixed seat (301), an eccentric wheel handle (305), a sliding sleeve (302), a plug rod (303), and a spring (304). The fixed seat (301) is fixedly connected to the electrode seat (1), and the eccentric wheel handle (305) is rotatably connected to the fixed seat (301). The sliding sleeve (302), the plug rod (303), and the spring (304) are all connected to the electrode seat (1). 02) It is slidably housed in the fixed base (301) and abuts against the eccentric part of the eccentric wheel handle (305). The insertion rod (303) passes through the sliding sleeve (302) coaxially and slides in conjunction with it. The copper block (2) has a slot that cooperates with the insertion rod (303). The spring (304) is sleeved on the insertion rod (303) and located between the sliding sleeve (302) and the inner wall of the fixed base (301).

2. The electrode assembly for a track welding machine according to claim 1, characterized in that: The copper block (2) is provided with a slider (306), which slides in conjunction with the groove on the electrode seat (1) to guide the copper block (2) to be installed on the electrode seat (1).

3. The electrode assembly for a track welding machine according to claim 1, characterized in that: When the eccentric wheel handle (305) is rotated to the locked position, the eccentric part of the eccentric wheel handle (305) circumferentially presses the sliding sleeve (302), the sliding sleeve (302) moves axially and compresses the spring (304), and at the same time pushes the end of the insert rod (303) to extend and be inserted into the slot.

4. The electrode assembly for a track welding machine according to claim 1, characterized in that: The water-cooling assembly (5) includes: a diversion connector (503), a water supply pipe (504), a water inlet (501), and a water outlet (502). The water inlet (501) and the water outlet (502) are both disposed on the copper block (2). The diversion connector (503) is connected to the water inlet (501). The water supply pipe (504) is connected to the diversion connector (503) and extends into the interior of the copper block (2).

5. The electrode assembly for a track welding machine according to claim 4, characterized in that: There are multiple water supply pipes (504), and the diverter (503) is used to distribute the cooling water from the water inlet (501) to the multiple water supply pipes (504).

6. The electrode assembly for a track welding machine according to claim 4, characterized in that: The water cooling assembly (5) also includes an output pipe (505), which collects the cooling water flowing through the copper block (2) and is connected to the water outlet (502).

7. The electrode assembly for a track welding machine according to claim 1, characterized in that: The mounting base (301) of the disassembly assembly (3) is connected to the electrode base (1) by bolts.

8. The electrode assembly for a rail welding machine according to claim 5, characterized in that: The outlets of the multiple water pipes (504) are located in the area inside the copper block (2) where concentrated heat dissipation is required.

Images