CN216632421U - Device for cutting welding wire and cleaning welding wire nozzle - Google Patents

Abstract

The utility model discloses a welding wire shearing and welding wire nozzle cleaning device which comprises a shearing mechanism and a cleaning mechanism, wherein the movement state of a cylinder is controlled by a solenoid valve to drive a cylinder connecting block and a blade to realize wire shearing operation; and finally, detecting the wire cutting effect through a sensor, wherein the wire cutting effect comprises the adaptability adjustment and cutting of different welding wire lengths required by laser brazing, laser wire feeding fusion welding and laser composite welding.

Description

Device for cutting welding wire and cleaning welding wire nozzle

Technical Field

The utility model belongs to a welding wire shearing device on a welding machine tool, and particularly relates to a welding wire shearing and welding wire nozzle cleaning device.

Background

At present, most metal welding is completed through a welding robot, and particularly, the labor cost can be saved and the welding precision can be better controlled in automobile welding. For a robot welding tool, especially for laser welding, a wire feeding module is generally arranged, a welding wire is conveyed to a position to be welded through the wire feeding module, then brazing, wire feeding fusion welding and laser composite welding are realized through laser, but the welding wire inevitably forms welding slag or a welding ball in the welding process, shearing and cleaning are needed for the welding slag or the welding ball, and otherwise, subsequent welding quality is affected.

The existing welding device for cutting the welding wire and cleaning the welding wire nozzle comprises a blade for cutting the welding wire, and then a brush is used for cleaning stains and the like on the contact tube, but the using effect and the cleaning effect are not good, for example, the cutting control precision of the blade is not enough, an auxiliary detection sensor is lacked, the length of the cut welding wire is not the length of the welding wire required by the process or the welding wire is not cut directly in the cutting working process, manual supervision and management are needed, in addition, in the laser brazing wire feeding fusion welding and laser composite welding, the requirements on the length of the welding wire are different, the cutting length of the welding wire used for the welding wire cutting and cleaning device of the welding wire nozzle needs to be adjusted in time, and the prior art can generally adjust the position control of a wire feeding gun or a wire feeding module to the cutter through a program instruction of a control robot, the control complexity of the robot welding tool is increased, the control adjustment for the welding wire shearing and welding wire nozzle cleaning device is less, and the robot welding tool is not practical and convenient enough.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to further improve the practicability and the wire cutting effect of the shearing machine for welding, including the improvement of cleaning of the contact tip after wire cutting, the utility model provides a device for shearing welding wires and cleaning the welding wire tip.

The technical scheme is as follows: the utility model provides a be used for welding wire to cut and welding wire mouth cleaning device, includes cylinder, blade, controller, sensor and frame, be used for welding wire to cut and welding wire mouth cleaning device is equipped with shearing mechanism, including the blade in the shearing mechanism and judge the cylinder sensor of cylinder piston rod position, be equipped with waste material box in the below of blade, the blade includes first blade and second blade, first blade passes through cylinder connecting block and fixes the operation of cutting on the cylinder piston rod of the cylinder in the frame, with the cooperation of first blade is the second blade of cutting, the second blade passes through the blade connecting block and sets up in the frame, cylinder sensor gomphosis set up on the cylinder surface, including the first cylinder sensor of detection cylinder piston rod initial position and the second cylinder sensor of detection cylinder piston rod shearing position, the cylinder is equipped with the trachea that solenoid valve control and cylinder are connected, the controller controls the electromagnetic valve to complete the cutting action of the blade according to the feedback signal of the sensor.

Furthermore, the device for shearing the welding wire and cleaning the welding wire nozzle realizes the shearing of the welding wire with different lengths by adjusting the position heights of the first blade and the second blade, namely, different welding wire lengths suitable for laser brazing, laser wire feeding fusion welding and laser composite welding are reserved on a wire feeding module of the welding robot.

Furthermore, a proximity sensor for sensing the length of the welding wire is arranged on the rack through a sensor fixing block, and sensed welding wire length data are transmitted to the controller for detecting whether wire cutting is qualified or not; still be equipped with clean mechanism on being used for welding wire to cut and welding wire mouth cleaning device, clean mechanism including the brush subassembly that is used for clearing up the spot on the contact tube, the top at waste material box is fixed to the brush subassembly, and the welding wire residue after the clearance also can fall into in the waste material box of below.

In order to be used for welding wire to cut and welding wire mouth cleaning device's outside clean and tidy, also help protecting the component part, be used for welding wire to cut and welding wire mouth cleaning device is equipped with the shell body, and is equipped with the baffle in the gap department between blade connecting block, brush subassembly, sensor fixed block and frame, prevents through the baffle that the welding wire from falling into the inside of shell body.

Furthermore, the shearing mechanism, the cleaning mechanism and the proximity sensor are arranged in a collinear manner, and the welding wire moved by the arm of the welding robot travels along a straight line, so that the processes of wire shearing, cleaning and detection are completed, and the control is convenient.

Has the advantages that: compared with the prior art, the welding wire shearing and welding wire nozzle cleaning device comprises a shearing mechanism for shearing wires, a cleaning mechanism for cleaning a contact tube and a proximity sensor for detecting the quality of the finished shearing work, the automation degree is higher, and the welding wire shearing operation effect is further ensured by the arranged sensor and under the control of a controller on an air cylinder and the like.

Drawings

FIG. 1 is a schematic view of the internal mechanism of the apparatus for cutting and cleaning a wire nozzle according to the present invention;

FIG. 2 is a schematic structural diagram of the welding wire cutting and welding wire nozzle cleaning device adopting the outer shell for packaging.

In the figure: 1. the device comprises a cylinder, 2, a cylinder connecting block, 3, a first blade, 4, a second blade, 5, a blade connecting block, 6, a waste material box, 7, a first cylinder sensor, 8, a second cylinder sensor, 9, an electromagnetic valve, 10, a proximity sensor, 11, a sensor fixing block, 12, a baffle, 13, a brush component, 14 and an outer shell.

Detailed Description

For the purpose of explaining the technical solution disclosed in the present invention in detail, the following description is further made with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, the utility model provides a welding wire cutting and welding wire nozzle cleaning device, which is used for assisting robot welding and realizing the cutting operation of the welding wire. This be used for welding wire to cut and welding wire mouth cleaning device is used for the shearing of welding wire including shearing the mechanism, is equipped with the cleaning mechanism and is used for the cleaning of welding slag or spot on the contact tube, still is equipped with proximity sensor and realizes the detection to cutting the operation effect. Concretely speaking, this be used for welding wire shearing and welding wire mouth cleaning device sets up the frame according to actual product design specification, be fixed with cylinder 1 in the frame, the cylinder is connected with the trachea, and be equipped with solenoid valve 9 and control, inherent cylinder piston rod on the cylinder 1, at the tip of cylinder piston rod, be provided with cylinder connecting block 2, be used for fixed first blade 3 on the cylinder connecting block 2, the regulation of mounted position can be carried out to first blade 3 on cylinder connecting block 2, including setting up adjusting bolt etc. and cooperating the regulation that realizes the position, consider that laser brazing, laser send a fusion welding and laser hybrid welding needs different welding wire length to realize, install first blade 3 through cylinder connecting block 2, also make things convenient for subsequent operations such as change, more flexibility. The blades in the shearing device comprise a first blade 3 and a second blade 4, in the embodiment, the first blade 3 realizes wire shearing under the movement of a piston rod of a cylinder, and the second blade 4 is fixed and is opposite to the blade point of the first blade 3. The second blade 4 is fixed in the frame through the blade connecting block 5, the height and position of the second blade 4 can be conveniently adjusted through the blade connecting block 5, subsequent replacement is facilitated, the waste material box 6 is fixedly arranged below the knife edges of the first blade 3 and the second blade 4 through the frame and used for collecting the cut welding wires, and the waste material box 6 is in an opening shape formed in a gourd-shaped opening and can be conveniently taken.

For the control of the cylinder 1, a first cylinder sensor 7 and a second cylinder sensor 8 are arranged, the first cylinder sensor 7 and the second cylinder sensor 8 are both embedded on the surface of the cylinder and respectively correspond to different positions of a piston rod of the detection cylinder, the detection of the initial position of the piston rod of the cylinder and the detection of the shearing position can be carried out, the shearing mechanism is used for judging whether the wire shearing action is finished or not and judging whether the wire is sheared in place, the first cylinder sensor 7 and the second cylinder sensor 8 feed back detection signals to the controller, the controller is realized by adopting a PLC controller and the like and also connected with an external controller for analysis and processing, an operation instruction is sent, and the controller further realizes the wire shearing control through a control electromagnetic valve 9.

After the wire shearing action is completed, the arm of the welding robot horizontally moves the wire feeding part to the cleaning mechanism on the same side, the cleaning mechanism mainly comprises a brush component 13 which is fixedly arranged on the rack through a mounting frame, the cleaning is completed when the brush component 13 is scratched by a conductive nozzle on the control mechanical arm of the welding robot, and welding slag stains cleared by the brush component 13 automatically fall into a waste material box 6 below.

The proximity sensor 10 is arranged on the same side of the shearing mechanism and the cleaning mechanism at the same height, and the proximity sensor 10 is arranged on the rack through a sensor fixing block 11, so that the adjustment and subsequent disassembly and assembly maintenance are facilitated. Proximity sensor 11 detects whether qualified through the length of perception welding wire, detects whether reach the welding wire retention degree of setting for, avoids the welding wire overlength in view of the above, and gas shielded effect is poor, and the welding seam is invaded by the air and is formed the gas pocket defect probability increase. The resistance heat of the welding wire is large, the welding process is unstable, the spatter is large, if the welding wire is too short, the heat radiation performance of the contact tube is poor, and the service life of the contact tube is obviously reduced. The spatter also tends to burn out the contact tip nozzle. The weld pool is not easy to observe, and the welding quality can not be ensured.

More preferably, the outer shell 14 is arranged outside the welding wire cutting and welding wire nozzle cleaning device, as shown in fig. 2, the outer shell 14 is arranged for packaging, so that the appearance is attractive, and components inside the outer shell 14 can be effectively protected from being damaged and destroyed by the outside. In order to avoid cutting wires and cleaning in-process welding slag and the like entering the inside of outer shell 14, the blade connecting block 5, the brush component 13, the gap between sensor fixed block 11 and the frame is equipped with baffle 12, prevent through baffle 12 that the welding wire from falling into the inside of outer shell, also include and set up the guiding groove and introduce the waste material to waste material box 6 in the blade below that is used for welding wire to cut and welding wire mouth cleaning device to construct, also include and be equipped with the small opening in the installing frame lower part of brush component 13 and be used for collecting welding slag spot etc..

According to the device for cutting the welding wire and cleaning the welding wire nozzle, the movement state of the cylinder is controlled by the electromagnetic valve to drive the cylinder connecting block and the blade to realize the wire cutting operation in the actual operation process, and after the wire cutting operation is finished, in the process of continuing advancing the contact tube, dirt is cleaned by the brush; and finally, detecting the wire cutting effect through a sensor, wherein the wire cutting effect comprises the adaptability adjustment and cutting of different welding wire lengths required by laser brazing, laser wire feeding fusion welding and laser composite welding.

Claims (6)

1. The utility model provides a be used for welding wire to cut and welding wire mouth cleaning device, includes cylinder, blade, controller, sensor and frame, its characterized in that: the device for shearing the welding wire and cleaning the welding wire nozzle is provided with a shearing mechanism, the shearing mechanism comprises a blade and a cylinder sensor for judging the position of a cylinder piston rod, a waste material box (6) is arranged below the blade, the blade comprises a first blade (3) and a second blade (4), the first blade (3) is in shearing operation control with the cylinder piston rod of a cylinder (1) fixed on a rack through a cylinder connecting block (2), the second blade (4) is in shearing matching with the first blade (3), the second blade (4) is arranged on the rack through a blade connecting block (5), the cylinder sensor is embedded on the surface of the cylinder and comprises a first cylinder sensor (7) for detecting the initial position of the cylinder piston rod and a second cylinder sensor (8) for detecting the shearing position of the cylinder piston rod, the cylinder (1) is provided with an air pipe for controlling the electromagnetic valve (9) to be connected with the cylinder, the controller controls the electromagnetic valve (9) to complete the cutting action of the blade according to the feedback signal of the sensor.

2. The device for wire shearing and wire mouth cleaning as defined in claim 1, wherein: the device for cutting the welding wire and cleaning the welding wire nozzle realizes the cutting of the welding wire with different lengths by adjusting the position heights of the first blade (3) and the second blade (4).

3. The device for wire shearing and wire mouth cleaning as defined in claim 1, wherein: the welding wire length detection device is characterized in that a proximity sensor (10) used for sensing the length of a welding wire is arranged on the rack through a sensor fixing block (11), and sensed welding wire length data are transmitted to the controller.

4. The device for wire shearing and wire mouth cleaning as defined in claim 1, wherein: the device for shearing the welding wire and cleaning the welding wire nozzle is provided with a cleaning mechanism, the cleaning mechanism comprises a brush component (13) used for cleaning stains on the contact tube, and the brush component (13) is fixed above the waste material box (6).

5. The device for wire shearing and wire mouth cleaning as defined in claim 1, wherein: be used for welding wire to cut and welding wire mouth cleaning device is equipped with shell body (14), and is equipped with baffle (12) in the gap department between blade connecting block (5), brush subassembly (13), sensor fixed block (11) and the frame, prevents through baffle (12) that the welding wire from falling into the inside of shell body (14).

6. The device for wire shearing and wire mouth cleaning as defined in claim 1, wherein: the shearing mechanism, the cleaning mechanism and the proximity sensor are arranged in a collinear manner.

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