Residue monitoring device of laser welding wire feeder

Abstract

The utility model discloses a laser welding wire feeder allowance monitoring device which comprises a driving mechanism and a warning mechanism, the driving mechanism comprises a driving wheel in contact with a side plate of a wire feeding disc, a reciprocating screw rod in coaxial transmission with the driving wheel and a sliding block arranged on the reciprocating screw rod; the warning mechanism comprises at least one sounding wheel; in the moving process of the sliding block, the sound wheel can move upwards till the sound wheel makes contact with the wire feeding disc. The driving mechanism of the allowance detection device monitors the allowance of the welding wire by monitoring the rotation amount of the wire feeding disc, compared with the scheme that the driving mechanism abuts against the welding wire to monitor the allowance in the prior art, damage to the welding wire is effectively avoided, the rotation amount of the wire feeding disc is transmitted to the warning mechanism, and therefore the welding wire is prevented from being damaged. When the allowance is about to be used up, a sound is made, and the purpose of reminding an operator that the welding wire allowance is low is achieved.

Description

Technical Field

[0001] The utility model relates to the field of laser welding wire feeding equipment, in particular to a residual monitoring device for a laser welding wire feeding machine. Background Art

[0002] In laser welding / additive manufacturing, a wire feeder is needed to feed welding wire to the welding gun. Since the wire feeding reel of the wire feeder has limited capacity, it needs to be replaced after the welding wire is exhausted. If the wire is replaced after it is exhausted, it will take longer to replace the wire, affecting the efficiency of laser welding and the quality of the workpiece. If the operator can be reminded when the welding wire is about to be exhausted, a certain amount of preparation time can be provided to arrange the welding work adaptively. However, the wire feeding reel is located inside the wire feeder and cannot be directly observed.

[0003] The existing public patent (application number 2022234801563) discloses a wire feeding remainder monitoring device for a welding robot. Although it can detect the remaining remainder of the welding wire during the wire feeding process through the monitoring wheel and display the accurate remainder through the indicator needle, its detection wheel directly contacts the welding wire under the action of the spring, which will inevitably cause certain damage to the welding wire. Especially when the wire feeding reel is fully loaded, the force exerted by the detection wheel on the welding wire is relatively large, which is more likely to cause damage to the welding wire. Utility Model Content

[0004] The utility model provides a residual monitoring device for a laser welding wire feeder, which can at least solve one problem pointed out in the background technology.

[0005] A residual monitoring device for a laser welding wire feeder, comprising:

[0006] The driving mechanism comprises a driving wheel in contact with the side plate of the wire feeding disc, a reciprocating screw rod coaxially driven with the driving wheel, and a slider disposed on the reciprocating screw rod;

[0007] a warning mechanism including at least one sounding wheel;

[0008] During the movement of the slider, the ringing wheel can move upward until the ringing wheel contacts the wire feeding disc.

[0009] The warning mechanism also includes an elastic telescopic bracket, the sounding wheel is rotatably arranged on a mounting plate on the top of the elastic telescopic bracket, and a guiding inclined sliding block is arranged on the lower side of the mounting plate.

[0010] Two ringing wheels are symmetrically arranged on the mounting plate, and the two ringing wheels correspond to the two side plates of the wire feeding disc respectively;

[0011] The mounting plate is provided with two symmetrical guiding inclined sliding blocks.

[0012] The ringing wheel is a wheel-shaped shell with a cavity, and a metal block is arranged in the cavity.

[0013] An ear plate is also arranged in the cavity.

[0014] The slider has a convex portion, and the convex portion has two symmetrical guide bevels. When the slider moves to either end of the reciprocating screw rod, one of the guide bevels of the convex portion can contact the guide bevel slider and allow the mounting plate to move upward, so that the ringing wheel contacts the side plate of the wire feeding disk and rotates with the wire feeding disk.

[0015] Preferably, the elastic telescopic bracket includes a sleeve and a support rod inserted in the sleeve, the top of the support rod is connected to the lower side of the mounting plate, and a spring is also arranged in the sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving mechanism of the residual detection device proposed in the present invention monitors the residual amount of welding wire by monitoring the rotation amount of the wire feeding reel. Compared with the scheme in the prior art that monitors the residual amount by contacting the welding wire, it effectively avoids damage to the welding wire, and by transmitting the rotation of the wire feeding reel to the warning mechanism, a sound is emitted when the residual amount is about to be exhausted, thereby achieving the purpose of reminding the operator that the residual amount of welding wire is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the driving mechanism of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the warning mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the residual amount detection device of the utility model during normal wire feeding;

[0020] Figure 4 It is a structural schematic diagram of the residual amount detection device of the utility model when the residual amount of welding wire is low;

[0021] Figure 5 It is a cross-sectional view of the ringing wheel of the utility model.

[0022] Description of reference numerals:

[0023] 1-wire feeding disc, 2-driving wheel, 3-reciprocating screw rod, 4-slider, 5-ring wheel, 6-ear plate, 7-elastic telescopic bracket, 8-mounting plate, 9-guide inclined slider, 10-guide inclined surface, 11-sleeve, 12-support rod. DETAILED DESCRIPTION

[0024] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0025] like Figures 1 to 5 As shown, a residual amount monitoring device for a laser welding wire feeder provided by an embodiment of the utility model comprises a warning mechanism and a driving mechanism arranged in the wire feeder, wherein the driving mechanism comprises a driving wheel 2, a reciprocating screw rod 3 and a slider 4 arranged on the reciprocating screw rod 3, and the driving wheel 2 contacts the side plate of the wire feeding disc 1 of the wire feeding machine (such as Figure 1 As shown, in the normal wire feeding process, the driving wheel 2 rotates with the wire feeding disc 1, and the reciprocating screw rod 3 is coaxially arranged with the driving wheel 2. Alternatively, the driving wheel 2 is arranged on the part of the reciprocating screw rod 3 that is not provided with threads, and the reciprocating screw rod 3 is arranged in the wire feeding machine through a bracket (a bearing is arranged on the bracket so that the reciprocating screw rod 3 can rotate);

[0026] During the rotation of the reciprocating screw 3, the slider 4 moves along its length direction;

[0027] The warning mechanism includes at least one ringing wheel 5 and an elastic telescopic bracket 7. The elastic telescopic bracket 7 includes a sleeve 11 and a support rod 12 inserted in the sleeve 11. The top of the support rod 12 is connected to a mounting plate 8. A spring is also arranged in the sleeve 11. The spring is located at the lower side of the end of the support rod 12.

[0028] The wheel frame of the ringing wheel 5 is mounted on a mounting plate 8, and a guide inclined slider 9 is provided on the lower side of the mounting plate 8;

[0029] like Figure 2 As shown, in this embodiment, two ringing wheels 5 are taken as an example, and the two ringing wheels 5 correspond to the two side plates of the wire feeding disc 1 respectively; therefore, two symmetrical guiding inclined sliding blocks 9 are provided on the mounting plate 8;

[0030] The sliding block 4 moves so that the ringing wheel 5 moves upward until the ringing wheel 5 contacts the wire feeding disk 6. The ringing wheel 5 makes a sound when rotating, thereby reminding the operator;

[0031] The ringing wheel 5 is a wheel-shaped shell with a cavity. There is a metal block in the cavity. An ear plate 6 is also arranged in the cavity. When the ringing wheel 5 rotates, the metal block hits the inner wall of the cavity, thereby making a sound. The number of ear plates 6 can be multiple. This embodiment takes two as an example. Figure 5 As shown, the metal block can also be a rattle;

[0032] like Figure 3 or Figure 4 As shown, the slider 4 has a convex portion, and the convex portion has two symmetrical guiding inclined surfaces 10. When the slider 4 moves to either end of the reciprocating screw rod 3, as shown in FIG. Figure 4As shown, a guide inclined surface 10 of the convex portion can contact the guide inclined slider 9 and allow the mounting plate 8 to move upward, so that the ringing wheel 5 contacts the side plate of the wire feeding disk 1 and rotates with the wire feeding disk 1;

[0033] The length of the reciprocating screw rod 3 and the size of the driving wheel 2 need to be selected according to the size of the wire feeding reel 1 and the total length of the welding wire. The single stroke of the slider 4 is to be achieved just to exhaust the welding wire on the fully loaded wire feeding reel 1. Therefore, when the slider 4 is about to move to the end of the reciprocating screw rod (the end of the single stroke), the ringing wheel 5 has already moved up and rotated under the drive of the wire feeding reel 1 to make a sound, reminding the operator, so that the operator has time to arrange the welding work and prepare for the replacement of the welding wire.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit and basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim involved.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser welding wire feeder residual monitoring device, characterized in that: include: The driving mechanism comprises a driving wheel in contact with the side plate of the wire feeding disc, a reciprocating screw rod coaxially driven with the driving wheel, and a slider disposed on the reciprocating screw rod; a warning mechanism including at least one sounding wheel; During the movement of the slider, the ringing wheel can move upward until the ringing wheel contacts the wire feeding disc.

2. The laser welding wire feeder residual monitoring device according to claim 1, characterized in that: The warning mechanism also includes an elastic telescopic bracket, the sounding wheel is rotatably arranged on a mounting plate on the top of the elastic telescopic bracket, and a guiding inclined sliding block is arranged on the lower side of the mounting plate.

3. The laser welding wire feeder residual monitoring device according to claim 2, characterized in that: Two ringing wheels are symmetrically arranged on the mounting plate, and the two ringing wheels correspond to the two side plates of the wire feeding disc respectively; The mounting plate is provided with two symmetrical guiding inclined sliding blocks.

4. The laser welding wire feeder residual monitoring device according to claim 3, characterized in that: The ringing wheel is a wheel-shaped shell with a cavity, and a metal block is arranged in the cavity.

5. The laser welding wire feeder residual monitoring device according to claim 4, characterized in that: An ear plate is also arranged in the cavity.

6. The laser welding wire feeder residual monitoring device according to claim 2, characterized in that: The slider has a convex portion, and the convex portion has two symmetrical guide bevels. When the slider moves to either end of the reciprocating screw rod, one of the guide bevels of the convex portion can contact the guide bevel slider and allow the mounting plate to move upward, so that the ringing wheel contacts the side plate of the wire feeding disk and rotates with the wire feeding disk.

7. The laser welding wire feeder residual monitoring device according to claim 2, characterized in that: The elastic telescopic bracket comprises a sleeve and a support rod inserted in the sleeve, the top of the support rod is connected to the lower side of the mounting plate, and a spring is also arranged in the sleeve.

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