A laser welding wire feeding mechanism

Abstract

The utility model relates to laser welding technical field provides a kind of laser welding wire feeding mechanism, comprising: mounting plate, still include: wire feeding assembly, set in the one side of the mounting plate, the wire feeding assembly includes: rectangular groove, set in the one side of the mounting plate, the inside movable setting of the rectangular groove has bidirectional screw rod;Two sliders, all movable setting in the outer surface of the bidirectional screw rod;Wherein, slider can be longitudinally slid in the inside of rectangular groove;Tension adjusting assembly, set in the one side of the mounting plate away from rectangular groove;Welding wire passes between two positioning wheels, positioning wheel rotation is installed in the outer surface of rotating shaft, thus can wire feeding to welding wire, open first servo motor drive bidirectional screw rod rotation, bidirectional screw rod can drive positioning wheel relative or opposite or back movement by two sliders, according to the size of welding wire adjustment, make welding wire more stably between two positioning wheels, prevent welding wire to shake, improve wire feeding effect.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, and in particular to a laser welding wire feeding mechanism. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy laser beam as a heat source to rapidly heat and melt the workpiece, achieving high-quality, high-strength welds. Laser filler wire welding, which automatically and synchronously feeds the welding wire during laser welding, not only possesses the advantages of high energy, good weld quality, and minimal deformation associated with laser fusion welding, but also improves the gap margin during welding, increases the "bridging" capability of laser welding, and enhances the flexibility of the welding process, making it a very promising welding method.

[0003] In the prior art, such as Chinese Patent No. CN223114411U, a laser welding wire feeding mechanism includes a support plate and welding wire. One side of the support plate is equipped with a material tray, an adjusting wheel, and a feeding wheel. One side of the feeding wheel is equipped with a rotating rod. The other side of the support plate is equipped with a rotary motor. A drive mechanism is mounted on the support plate. A replacement part is mounted on the adjusting wheel. An anti-slip part is mounted on the outer side of the adjusting wheel. One end of the adjusting wheel has a threaded hole. One side of the adjusting wheel has a limit strip, and one side of the limit strip has a mounting threaded rod. A mounting plate is mounted at the bottom of the support plate. This utility model, by incorporating an adjusting wheel, drive mechanism, replacement part, anti-slip part, threaded hole, limit strip, and mounting threaded rod, allows for convenient adjustment of the conveying gap between the feeding wheels of the wire feeding mechanism. Furthermore, when the feeding wheels need to be replaced due to wear, it is not necessary to replace the entire feeding mechanism; only the worn replacement part needs to be replaced, thus reducing resource waste.

[0004] While the above-mentioned scheme has the advantages mentioned above, its disadvantages are as follows: adjusting the feed roller on one side can easily cause the welding wire to wobble, making it swing up and down between the two sets of feed rollers, thereby reducing the stability of the welding wire feeding and making it easy for the welding wire to become loose. Moreover, it is not convenient to adjust the tension according to the looseness of the welding wire. Therefore, insufficient welding wire tension can easily lead to unstable wire feeding, speed fluctuations, and the welding wire may bend, coil, or even get stuck in the wire feeding hose or conduit due to lack of tension, thus reducing the welding wire feeding efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the existing technology where adjusting the feed roller on one side easily causes the welding wire to sway, making the welding wire bounce up and down between the two sets of feed rollers, thereby reducing the stability of the welding wire feeding, making it easy for the welding wire to become loose, and making it inconvenient to adjust the tension according to the looseness of the welding wire. Therefore, insufficient welding wire tension can easily lead to unstable wire feeding, speed fluctuations, and the welding wire bending, coiling, or even getting stuck in the wire feeding hose or conduit due to lack of tension, thus reducing the welding wire feeding efficiency.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a laser welding wire feeding mechanism, comprising: a mounting plate, and further comprising:

[0007] A wire feeding assembly is disposed on one side of the mounting plate, the wire feeding assembly comprising:

[0008] A rectangular groove is formed on one side of the mounting plate, and a bidirectional lead screw is movably installed inside the rectangular groove;

[0009] Both sliders are movably mounted on the outer surface of the bidirectional lead screw;

[0010] The slider can slide longitudinally inside the rectangular groove;

[0011] The tension adjustment assembly is located on the side of the mounting plate away from the rectangular groove.

[0012] Preferably, the wire feeding assembly further includes:

[0013] A rotating shaft is fixedly mounted on one side of the slider, and a positioning wheel is movably mounted on the outer surface of the rotating shaft;

[0014] A partition strip is fixedly installed on one side of one of the sliders;

[0015] The first servo motor is fixedly mounted on one side of the top outer surface of the mounting plate, and the output end of the first servo motor is connected to the bidirectional lead screw through a rectangular slot.

[0016] A connecting plate is fixedly mounted on one side of the slider.

[0017] The technical effect of adopting the above-mentioned further solution is: the first servo motor is turned on to drive the bidirectional lead screw to rotate. The bidirectional lead screw can drive the positioning wheels to move relative to each other or in opposite directions through two sliders. Adjustment is made according to the size of the welding wire, so that the welding wire is more stably positioned between the two positioning wheels, preventing the welding wire from shaking and improving the wire feeding effect.

[0018] Preferably, the tension adjustment assembly includes:

[0019] An annular semicircular through groove is formed at the center of the side of the mounting plate away from the rectangular groove, and an arc-shaped block is movably arranged inside the annular semicircular through groove;

[0020] A circular shaft is fixedly disposed on one side of the arc-shaped block. A guide wheel is movably disposed on the outer surface of the circular shaft, and an annular baffle is fixedly installed on the side of the guide wheel near the circular shaft.

[0021] The technical effect of adopting the above-mentioned further solution is that the second servo motor drives the arc block to rotate inside the annular semi-circular through groove through the adjustment plate, and the arc block drives the guide wheel to move, which can realize the tension adjustment of the welding wire, so that the welding wire is always kept taut and prevents the welding wire from becoming loose, resulting in unstable wire feeding or coiling and jamming.

[0022] Preferably, an L-shaped plate is fixedly disposed at the center of one side of the mounting plate, and a second servo motor is fixedly disposed on the outer surface of the L-shaped plate;

[0023] The output end of the second servo motor is concentric with the annular semicircular through slot.

[0024] The technical effect of adopting the above-mentioned further solution is that the second servo motor drives the arc block to rotate inside the annular semi-circular through groove through the adjustment plate.

[0025] Preferably, an adjustment plate is fixedly provided at the output end of the second servo motor, and the adjustment plate is connected to the arc-shaped block.

[0026] The technical effect of adopting the above-mentioned further solution is that the second servo motor drives the arc block to rotate inside the annular semi-circular through groove through the adjustment plate, and the arc block drives the guide wheel to move, which can realize the tension adjustment of the welding wire.

[0027] Preferably, a fixing plate is fixedly provided on one side of the connecting plate, an adjusting pin is movably provided on the outer surface of the fixing plate, and a cleaning brush plate is fixedly provided at one end of the adjusting pin.

[0028] The technical effect of adopting the above-mentioned further solution is that the adjusting pin can drive the cleaning brush plate to move and adjust.

[0029] Preferably, a spring is fixedly provided on the outer surface of the adjusting pin, and the other end of the spring is connected to the fixing plate.

[0030] The technical effect of adopting the above-mentioned further solution is that, under the elastic force of the spring, the adjusting pin enables the two cleaning brushes to make better contact with the welding wire and clean the outer surface of the welding wire.

[0031] Preferably, the opposing surfaces of the two sliders are fixedly provided with telescopic sleeves, which are movably sleeved on the outer surface of the bidirectional lead screw.

[0032] The technical effect of adopting the above-mentioned further solution is that the telescopic sleeve can extend and retract as the slider moves, thus providing better protection for the bidirectional lead screw.

[0033] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0034] In this invention, the welding wire passes between two positioning wheels, which are rotatably mounted on the outer surface of a rotating shaft, thus feeding the welding wire. The first servo motor is activated, driving a bidirectional lead screw to rotate. The bidirectional lead screw, via two sliders, can move the positioning wheels relative to each other or in opposite directions. Adjustments are made according to the size of the welding wire to ensure it is more stably positioned between the two positioning wheels, preventing wobbling and improving the feeding effect. Telescopic sleeves are fixedly installed on the opposing surfaces of the two sliders, extending and retracting as the sliders move, providing better protection for the bidirectional lead screw. Simultaneously, as the sliders move the positioning wheels, the connecting plate drives the fixed plate to move relative to each other or in opposite directions, allowing the cleaning brush to better contact the welding wire, thereby cleaning the wire, improving its cleanliness, and enhancing welding quality.

[0035] Simultaneously, the welding wire contacts the guide wheel, and the guide wheel rotates on the outer surface of the circular shaft to guide the welding wire. The second servo motor drives the arc block to rotate inside the annular semi-circular groove through the adjustment plate. The arc block drives the guide wheel to move, which can realize the tension adjustment of the welding wire, so that the welding wire is always kept taut and prevents the welding wire from becoming loose, resulting in unstable wire feeding or coiling and jamming. The arc block moves more stably inside the annular semi-circular groove, improving the adjustment effect of the guide wheel. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the laser welding wire feeding mechanism of this utility model;

[0037] Figure 2 This is a side view of the laser welding wire feeding mechanism of this utility model.

[0038] Figure 3 This is a partial side view of the laser welding wire feeding mechanism of this utility model.

[0039] Figure 4 This is an exploded structural diagram of the laser welding wire feeding mechanism of this utility model.

[0040] Legend:

[0041] 1. Mounting plate; 101. Rectangular groove; 102. Bidirectional lead screw; 103. First servo motor; 104. Positioning wheel; 105. Connecting plate; 106. Annular semi-circular through groove; 107. Guide wheel; 108. Annular baffle; 109. Fixing plate; 110. Adjusting pin; 111. Spring; 112. Cleaning brush plate; 113. L-shaped plate; 114. Second servo motor; 115. Adjusting plate; 116. Arc block; 117. Slider; 118. Rotating shaft; 119. Spacer strip; 120. Telescopic sleeve; 121. Round shaft. Detailed Implementation

[0042] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0044] Example 1:

[0045] like Figures 1-4 As shown, this utility model provides a laser welding wire feeding mechanism, including: a mounting plate 1, a wire feeding assembly, and a tension adjustment assembly;

[0046] The wire feeding assembly includes: a rectangular groove 101 is provided on one side of the mounting plate 1, a bidirectional lead screw 102 is movably embedded inside the rectangular groove 101, two sliders 117 are movably sleeved on the outer surface of the bidirectional lead screw 102, a rotating shaft 118 is fixedly installed on one side of the slider 117, and a positioning wheel 104 is rotatably installed on the outer surface of the rotating shaft 118.

[0047] The first servo motor 103 is fixedly installed on the top side of the mounting plate 1, and the output end of the first servo motor 103 is connected to the bidirectional lead screw 102.

[0048] The first servo motor 103 can drive the bidirectional lead screw 102 to rotate. The bidirectional lead screw 102 can drive the rotating shaft 118 and the positioning wheel 104 to move relative to or away from each other through two sliders 117, so as to better adjust according to the size of the welding wire and make the welding wire more stably positioned between the two positioning wheels 104, thereby improving the wire feeding effect.

[0049] It should be noted that a baffle 119 is fixedly installed on one side of one of the sliders 117. The baffle 119 can move with the slider 117. The baffle 119 is located on one side of the rectangular groove 101 and can prevent the wire from getting stuck inside the rectangular groove 101.

[0050] In this embodiment, a connecting plate 105 is fixedly installed on one side of each of the two sliders 117, and a fixing plate 109 is fixedly installed on one side of the connecting plate 105. An adjusting pin 110 is movably embedded on the outer surface of the fixing plate 109. A cleaning brush plate 112 is fixedly installed on the opposite side of each of the two adjusting pins 110. A spring 111 is fixedly connected to the outer surface of the adjusting pin 110. The other end of the spring 111 is connected to the fixing plate 109. Under the elastic force of the spring 111, the adjusting pin 110 makes the two cleaning brush plates 112 better contact the welding wire and clean the outer surface of the welding wire, which can improve the welding quality and prevent defects such as porosity and slag inclusion.

[0051] Example 2:

[0052] like Figures 1-4 As shown, the only difference between this embodiment and embodiment 1 is that the tension adjustment component includes: an annular semi-circular through groove 106 is provided on the side of the mounting plate 1 away from the rectangular groove 101, an L-shaped plate 113 is fixedly installed at the center of one side of the mounting plate 1, and a second servo motor 114 is fixedly installed on the outer surface of the L-shaped plate 113.

[0053] An adjustment plate 115 is fixedly installed at the output end of the second servo motor 114, and an arc-shaped block 116 is fixedly installed on one side of the adjustment plate 115.

[0054] The arc-shaped block 116 is movably embedded inside the annular semi-circular through groove 106. A round shaft 121 is fixedly installed on the other side of the arc-shaped block 116. A guide wheel 107 is rotatably installed on the outer surface of the round shaft 121. The arc-shaped block 116 is driven to rotate inside the annular semi-circular through groove 106 by the adjusting plate 115, thereby driving the guide wheel 107 to make adjustments. The tension of the welding wire can be adjusted by the guide wheel 107 to prevent the welding wire from becoming loose.

[0055] In this embodiment, an annular baffle 108 is fixedly installed on the side of the guide wheel 107 near the round shaft 121. The annular baffle 108 can rotate with the guide wheel 107. The annular baffle 108 can prevent the welding wire from sliding from one side of the guide wheel 107 onto the round shaft 121, thereby improving the guiding effect on the welding wire and preventing the welding wire from getting tangled on the round shaft 121 and affecting its rotation.

[0056] Working principle: The welding wire passes between two positioning wheels 104. The positioning wheels 104 are rotatably mounted on the outer surface of the rotating shaft 118, thus feeding the welding wire. The first servo motor 103 is turned on to drive the bidirectional lead screw 102 to rotate. The bidirectional lead screw 102 can drive the positioning wheels 104 to move relative to each other or in opposite directions through two sliders 117. The adjustment is made according to the size of the welding wire to make the welding wire more stably positioned between the two positioning wheels 104, preventing the welding wire from shaking and improving the wire feeding effect. The opposing surfaces of the two sliders 117 are fixedly installed with telescopic sleeves 120. The telescopic sleeves 120 can be extended and retracted as the sliders 117 move, better protecting the bidirectional lead screw 102. While the sliders 117 drive the positioning wheels 104 to move, the connecting plate 105 drives the fixing plate 109 to move relative to each other or in opposite directions, so that the cleaning brush plate 112 can better contact the welding wire, thereby cleaning the welding wire, improving the cleanliness of the welding wire, and improving the welding quality.

[0057] The welding wire contacts the guide wheel 107. The guide wheel 107 rotates on the outer surface of the circular shaft 121, which can guide the welding wire feeding. The second servo motor 114 drives the arc block 116 to rotate inside the annular semi-circular groove 106 through the adjustment plate 115. The arc block 116 drives the guide wheel 107 to move, which can realize the tension adjustment of the welding wire, so that the welding wire is always kept taut and prevents the welding wire from becoming loose, resulting in unstable wire feeding or coiling and jamming. The arc block 116 moves more stably inside the annular semi-circular groove 106, improving the adjustment effect of the guide wheel 107.

[0058] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A laser welding wire feeding mechanism, comprising: Mounting plate (1), characterized in that it further includes: A wire feeding assembly is disposed on one side of the mounting plate (1), the wire feeding assembly comprising: A rectangular groove (101) is formed on one side of the mounting plate (1), and a two-way lead screw (102) is movably arranged inside the rectangular groove (101). Both sliders (117) are movably disposed on the outer surface of the bidirectional lead screw (102); The slider (117) can slide longitudinally inside the rectangular groove (101); The tension adjustment assembly is located on the side of the mounting plate (1) away from the rectangular groove (101).

2. The laser welding wire feeding mechanism according to claim 1, characterized in that: The wire feeding assembly further includes: A rotating shaft (118) is fixedly disposed on one side of the slider (117), and a positioning wheel (104) is movably disposed on the outer surface of the rotating shaft (118). A partition strip (119) is fixedly disposed on one side of one of the sliders (117); The first servo motor (103) is fixedly installed on one side of the top outer surface of the mounting plate (1), and the output end of the first servo motor (103) is connected to the bidirectional lead screw (102) through the rectangular slot (101); The connecting plate (105) is fixedly disposed on one side of the slider (117).

3. The laser welding wire feeding mechanism according to claim 1, characterized in that: The tension adjustment component includes: An annular semicircular through groove (106) is formed at the center of the side of the mounting plate (1) away from the rectangular groove (101), and an arc-shaped block (116) is movably arranged inside the annular semicircular through groove (106). A circular shaft (121) is fixedly disposed on one side of the arc-shaped block (116), and a guide wheel (107) is movably disposed on the outer surface of the circular shaft (121).

4. The laser welding wire feeding mechanism according to claim 3, characterized in that: An annular baffle (108) is fixedly installed on the side of the guide wheel (107) near the round shaft (121).

5. The laser welding wire feeding mechanism according to claim 1, characterized in that: An L-shaped plate (113) is fixedly installed at the center of one side of the mounting plate (1), and a second servo motor (114) is fixedly installed on the outer surface of the L-shaped plate (113). The output end of the second servo motor (114) is concentric with the annular semicircular through groove (106).

6. The laser welding wire feeding mechanism according to claim 5, characterized in that: An adjustment plate (115) is fixedly installed at the output end of the second servo motor (114), and the adjustment plate (115) is connected to the arc block (116).

7. The laser welding wire feeding mechanism according to claim 2, characterized in that: A fixing plate (109) is fixedly provided on one side of the connecting plate (105), and an adjusting pin (110) is movably provided on the outer surface of the fixing plate (109).

8. The laser welding wire feeding mechanism according to claim 7, characterized in that: A cleaning brush plate (112) is fixedly installed at one end of the adjusting pin (110).

9. The laser welding wire feeding mechanism according to claim 7, characterized in that: A spring (111) is fixedly installed on the outer surface of the adjusting pin (110), and the other end of the spring (111) is connected to the fixing plate (109).

10. The laser welding wire feeding mechanism according to claim 1, characterized in that: The two sliders (117) are fixedly provided with telescopic sleeves (120) on their opposite surfaces, and the telescopic sleeves (120) are movably sleeved on the outer surface of the bidirectional lead screw (102).

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