A welding wire feeder based on gear transmission

Abstract

The utility model relates to welding wire feeder technical field discloses a kind of welding wire feeder based on gear transmission, including wire feeding drive rod, further include: gear transmission assembly, setting in the outside of wire feeding drive rod, the gear transmission assembly includes be set in the bevel gear piece outside wire feeding drive rod, the front surface of the bevel gear piece is provided with bevel gear piece, the outside of the gear transmission assembly is provided with protective cavity assembly, the front surface of the gear transmission assembly is provided with fixed plate;Gear and wire feeding wheel group adaptation component, setting in the front surface of gear transmission assembly, the gear and wire feeding wheel group adaptation component includes be set in the driven pulley bearing of fixed plate front surface;The utility model can make that wire feeding is smooth without jerky, improve wire feeding precision simultaneously by setting gear transmission assembly, by setting gear and wire feeding wheel group adaptation component, the welding wire of different wire diameter and material can be transported.

Description

Technical Field

[0001] This utility model relates to the field of welding wire feeder technology, specifically a welding wire feeder based on gear transmission. Background Technology

[0002] A welding wire feeder is a device that uses a mechanical or electric drive system to deliver welding wire from a wire spool or wire tube to the welding point at a preset speed, direction, and pressure. It is usually used in conjunction with a welding power source, welding torch, etc., to form a complete welding system. The wire feeding mechanism is a key device in welding equipment for the stable delivery of welding wire, and its function is to control the welding current by adjusting the wire feeding speed.

[0003] Existing welding wire feeders mostly use conventional spur gear structures for gear transmission. The transmission accuracy is affected by the backlash, and the wire feeding is prone to stuttering. At the same time, the coordination between the gears and the wire feeding wheel set is poor, the compatibility with welding wires of different diameters and materials is low, the wire feeding tension is difficult to control stably, and the equipment protection is insufficient. Welding spatter and dust can easily damage the gears and transmission components, resulting in decreased wire feeding accuracy, fluctuations in welding quality, and increased equipment maintenance costs and defect rate. Utility Model Content

[0004] The purpose of this invention is to provide a welding wire feeder based on gear transmission to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding wire feeder based on gear transmission, including a wire feeding drive rod, and further comprising:

[0006] A gear transmission assembly is disposed on the outside of the wire feeding drive rod. The gear transmission assembly includes a bevel gear disposed on the outside of the wire feeding drive rod. A helical gear is disposed on the front surface of the bevel gear. A protective cavity assembly is disposed on the outside of the gear transmission assembly. A fixing plate is disposed on the front surface of the gear transmission assembly.

[0007] A gear and wire feeding wheel adapter assembly is disposed on the front surface of the gear transmission assembly. The gear and wire feeding wheel adapter assembly includes a driven wheel bearing disposed on the front surface of the fixed plate. A clamping adjustment knob is disposed on the top of the fixed plate. A spring is welded to one side of the clamping adjustment knob. A V-groove driving wheel is disposed on the front surface of the fixed plate. A rubber sleeve is disposed on the outer side of the driven wheel bearing.

[0008] Preferably, the bevel gear component includes a first bevel gear fixedly connected to the outside of the wire feeding drive rod, a second bevel gear meshing with the outside of the first bevel gear, and a connecting shaft fixedly connected to the inner ring of the second bevel gear.

[0009] Preferably, the helical gear component includes a first helical gear fixedly connected to the outside of the connecting shaft, and a second helical gear and a third helical gear respectively meshing with the outside of the first helical gear.

[0010] Preferably, the protective cavity assembly includes a housing fixedly connected to the rear surface of the fixing plate, an observation window is provided inside the housing, and a negative pressure dust suction port is connected to one side of the housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. By setting up a gear transmission assembly with special tooth profiles and adaptive meshing structures such as multiple helical gears and multiple bevel gears, this utility model can optimize transmission accuracy and coordination, ensure smooth wire feeding without jerking, improve wire feeding accuracy, and guarantee consistent welding quality.

[0013] 2. This utility model, by setting up a gear and wire feeding wheel set adapter component, allows for the adjustment of the gear transmission ratio and wire feeding wheel pressure via a linkage structure through a pressure adjustment knob under the action of two driven wheels and a driving wheel. This allows for the adaptation of multiple specifications of welding wire, ensuring wire feeding stability. Furthermore, the gear transmission ratio and wire feeding wheel set parameters can be adjusted to adapt to welding wires of different diameters and materials, eliminating the need for frequent component replacements and enhancing the equipment's versatility.

[0014] 3. By setting up a protective cavity assembly, this utility model can protect the gear transmission assembly, which can reduce the corrosion of impurities and extend the service life of gears and transmission components. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of the gear-driven welding wire feeder provided by this utility model;

[0016] Figure 2 A schematic diagram of the gear transmission structure provided by this utility model;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 A schematic diagram of the protective cavity assembly provided by this utility model.

[0019] In the diagram: 1. Gear transmission assembly; 2. Gear and wire feed wheel assembly adapter assembly; 3. Protective cavity assembly; 4. Wire feed drive rod; 101. Bevel gear component; 102. Helical gear component; 1011. First bevel gear; 1012. Second bevel gear; 1021. First helical gear; 1022. Second helical gear; 1023. Third helical gear; 201. Driven wheel bearing; 202. Pressure adjustment knob; 203. Spring; 204. V-groove drive wheel; 205. Rubber sleeve; 301. Housing; 302. Observation window; 303. Negative pressure dust suction port; 5. Connecting shaft; 6. Fixing plate. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 4 As shown, a welding wire feeder based on gear transmission includes a wire feeding drive rod 4. By using a servo motor as the power source, the motor shaft is connected to the wire feeding drive rod 4 via a flexible coupling, reducing the impact of motor vibration on transmission accuracy. Simultaneously, the motor driver incorporates a PID control algorithm to precisely adjust the rotational speed according to wire feeding requirements. The wire feeding speed is continuously adjustable from 0-10 m / min. The device also includes:

[0022] Gear transmission assembly 1 is disposed on the outside of the wire feeding drive rod 4. Gear transmission assembly 1 includes a bevel gear 101 disposed on the outside of the wire feeding drive rod 4. By setting bevel gear 101, vertical power reversal can be achieved under the action of two bevel gears, which is suitable for the spatial layout of the wire feeding machine. Helical gear 102 is provided on the front surface of bevel gear 101. By setting helical gear 102, horizontal transmission can be used under the action of multiple helical gears. By using helical contact of tooth surfaces, the transmission gap is reduced and the transmission smoothness is improved. A protective cavity assembly 3 is provided on the outside of gear transmission assembly 1. Under the action of protective cavity assembly 3, gear transmission assembly 1 can be protected and each gear can be protected. A fixing plate 6 is provided on the front surface of gear transmission assembly 1.

[0023] The gear and wire feed wheel adapter assembly 2 is located on the front surface of the gear transmission assembly 1. It can be connected to the gear transmission assembly 1 to perform multi-stage adjustment of the transmission ratio. The gear and wire feed wheel adapter assembly 2 includes a driven wheel bearing 201 located on the front surface of the fixed plate 6. A clamping adjustment knob 202 is located on the top of the fixed plate 6. A spring 203 is welded to one side of the clamping adjustment knob 202. A V-groove driving wheel 204 is located on the front surface of the fixed plate 6. The outer side of the driven wheel bearing 201... A rubber sleeve 205 is provided. An adjusting rod is provided on the top of the fixed plate 6, and two adjusting plates are rotatably connected to the outside of the adjusting rod. The inside of the adjusting plate is rotatably connected to the driven wheel bearing 201. At the same time, a driven wheel is fixedly connected to the outside of the driven wheel bearing 201. A rubber sleeve 205 is provided on the outside of the driven wheel. The wire feeding wheel assembly is equipped with an adjustable pressure device. The pressure between the wire feeding wheel and the welding wire is controlled by an electric push rod. The pressure sensor provides real-time feedback. According to the welding wire parameters, such as wire diameter 0.8-2.0mm and material stainless steel / aluminum, the clamping adjustment knob 202 is manually adjusted, so that the spring 203 clamps the two driven wheels, which are made of bearings and have rubber sleeves 205 on their surfaces. The rubber sleeves 205 increase the friction, thereby ensuring stable wire feeding tension.

[0024] The bevel gear component 101 includes a first bevel gear 1011 fixedly connected to the outside of the wire feeding drive rod 4. A second bevel gear 1012 is meshed with the outside of the first bevel gear 1011. A connecting shaft 5 is fixedly connected to the inner ring of the second bevel gear 1012. The helical gear component 102 includes a first helical gear 1021 fixedly connected to the outside of the connecting shaft 5. A second helical gear 1022 and a third helical gear 1023 are meshed with the outside of the first helical gear 1021. When the wire feeding drive rod 4 is working, it can drive the first bevel gear 1011 to rotate, which in turn drives the second bevel gear 1012 to rotate. When the second bevel gear 1012 rotates, it can drive the connecting shaft 5 to rotate. Under the action of the connecting shaft 5, the first helical gear 1021 can be driven to rotate. Under the action of the first helical gear 1021, the second helical gear 1022 and the third helical gear 1023 on its outer side can be driven to rotate. At the same time, the inner rings of the second helical gear 1022 and the third helical gear 1023 are fixedly connected to the transmission shaft, and the outer side of each transmission shaft is fixedly connected to the inner ring of a single V-groove drive wheel 204. Thus, under the action of the transmission shaft, the V-groove drive wheel 204 starts to rotate. At the same time, all gears are made of 20CrMnTi material, which is carburized, quenched and ground. The tooth profile accuracy reaches grade 6 or above as specified in GB / T10095.1-2008, ensuring transmission accuracy.

[0025] The protective cavity assembly 3 includes a housing 301 fixedly connected to the rear surface of the fixing plate 6. Under the action of the housing 301, each gear can be protected. It adopts a fully enclosed metal cavity structure. The outer shell of the cavity is made of aluminum alloy or stainless steel and the surface is treated with powder coating / anodizing, which has anti-corrosion and impact-resistant properties. An observation window 302 is provided inside the housing 301. The glass material of the observation window 302 is bulletproof glass, which facilitates observation of the internal transmission status. A negative pressure dust suction port 303 is connected to one side of the housing 301. A detachable cleaning door is provided on one side of the housing 301. At the same time, a debris collection groove is provided inside to remove welding spatter and welding wire debris in time, preventing damage to gears and transmission components.

[0026] Working Principle: When using this device, the operator first controls the servo motor through the PLC controller of the wire feeder. The motor shaft is connected to the wire feeding drive rod 4 via a flexible coupling. Under the action of the wire feeding drive rod 4, the first bevel gear 1011 can rotate, which in turn drives the second bevel gear 1012 to rotate. When the second bevel gear 1012 rotates, it drives the connecting shaft 5 to rotate. Under the action of the connecting shaft 5, the first helical gear 1021 can rotate. When the first helical gear 1021 rotates, it drives the second helical gear 1022 and the third helical gear 1023 on its outer side to rotate. When the helical gear 1023 rotates, it drives the transmission shaft of its inner ring to rotate. In turn, the transmission shaft drives the V-groove drive wheel 204 to rotate. Under the action of the V-groove drive wheel 204 and the driven wheel, the welding wire can be fed. When it is necessary to feed welding wire of different sizes, the operator first presses the adjustment knob 202 to compress the spring 203. Under the action of the spring 203, the placement angle of the adjustment plate can be adjusted. Under the action of the adjustment plate, the driven wheel can be driven to move, so that the distance between the driven wheel and the V-groove drive wheel 204 can be adjusted, thereby enabling the feeding of welding wire of different sizes.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding wire feeder based on gear transmission, comprising a wire feeding drive rod (4), characterized in that, Also includes: A gear transmission assembly (1) is disposed on the outside of the wire feeding drive rod (4). The gear transmission assembly (1) includes a bevel gear (101) disposed on the outside of the wire feeding drive rod (4). A helical gear (102) is disposed on the front surface of the bevel gear (101). A protective cavity assembly (3) is disposed on the outside of the gear transmission assembly (1). A fixing plate (6) is disposed on the front surface of the gear transmission assembly (1). A gear and wire feeding wheel adapter assembly (2) is disposed on the front surface of the gear transmission assembly (1). The gear and wire feeding wheel adapter assembly (2) includes a driven wheel bearing (201) disposed on the front surface of the fixed plate (6). A clamping adjustment knob (202) is disposed on the top of the fixed plate (6). A spring (203) is welded to one side of the clamping adjustment knob (202). A V-groove driving wheel (204) is disposed on the front surface of the fixed plate (6). A rubber sleeve (205) is disposed on the outer side of the driven wheel bearing (201).

2. The welding wire feeder based on gear transmission according to claim 1, characterized in that: The bevel gear component (101) includes a first bevel gear (1011) fixedly connected to the outside of the wire feeding drive rod (4), a second bevel gear (1012) meshing with the outside of the first bevel gear (1011), and a connecting shaft (5) fixedly connected to the inner ring of the second bevel gear (1012).

3. The welding wire feeder based on gear transmission according to claim 2, characterized in that: The helical gear component (102) includes a first helical gear (1021) fixedly connected to the outside of the connecting shaft (5), and a second helical gear (1022) and a third helical gear (1023) respectively meshing with the outside of the first helical gear (1021).

4. A welding wire feeder based on gear transmission according to claim 1, characterized in that: The protective cavity assembly (3) includes a housing (301) fixedly connected to the rear surface of the fixing plate (6), an observation window (302) is provided inside the housing (301), and a negative pressure dust suction port (303) is connected to one side of the housing (301).

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