A quick-release wire ejection assembly and a laser welding machine

Abstract

This utility model relates to the field of welding technology, and in particular to a quick-release wire feed assembly and a laser welding machine. It includes a guide nozzle, a wire feed nozzle, and fasteners. The guide nozzle is detachably fixed in a clamping hole of a base. A guide channel is formed inside the guide nozzle, and a notch extending to the outer peripheral wall of the guide nozzle is formed on the inner wall of the guide channel. A cantilever is formed at the notch, with one end suspended and the other end connected to the inner wall of the notch. The fasteners are detachably installed on the base and are used to extend into the clamping hole to force the cantilever to deform into the guide channel and abut against the outer peripheral wall of the wire feed nozzle. This utility model utilizes the nested relationship between the guide nozzle and the wire feed nozzle to ensure their coaxiality. Furthermore, the cooperation between the cantilever and the fastener synchronously fixes the guide nozzle and the wire feed nozzle, avoiding deformation of the wire feed nozzle caused by the fastener directly pressing against it. Simultaneously, the axial position of the wire feed nozzle can be adjusted and quickly replaced by tightening or loosening the fasteners, improving operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a quick-release wire ejection assembly and a laser welding machine. Background Technology

[0002] A laser welding machine typically includes a base, a wire feeding assembly for conveying welding wire, a wire exiting assembly for guiding the welding wire out, and a laser welding head for emitting a laser beam to melt the welding wire for welding.

[0003] In the prior art, the wire outlet nozzle of the wire outlet assembly is generally fixed to the base by bolts. Firstly, the threaded connection results in low positional accuracy of the wire outlet nozzle. Since the wire outlet nozzle is generally installed at an angle, and the laser welding head emits a laser beam vertically downward, the laser beam melts the solder wire extending from the wire outlet nozzle. If the position of the angled wire outlet nozzle is slightly off, it will deviate from the laser beam path, resulting in welding failure. Furthermore, the position of the wire outlet nozzle fixed by bolts is not easy to adjust and is inconvenient to replace. Utility Model Content

[0004] The technical problem to be solved by this utility model is: to solve the problem that in the prior art, the wire feed nozzle is generally fixed to the base by bolts, the threaded connection causes the wire feed nozzle to have low positional accuracy, and the position of the wire feed nozzle fixed by bolts is not easy to adjust and is inconvenient to replace, and to solve the problem of the laser welding machine that includes the above-mentioned wire feeding mechanism with measurable length.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a quick-release wire feed assembly, used to receive and guide the welding wire from the welding wire spool and feed it out, including:

[0006] The guide nozzle is detachably fixed in the clamping hole of the base. A guide channel is formed inside the guide nozzle. A notch extending to the outer peripheral wall of the guide nozzle is opened on the inner wall of the guide channel, and a cantilever is formed at the notch with one end suspended and the other end connected to the inner wall of the notch.

[0007] The wire outlet nozzle is inserted into the guide channel and one end extends out of the guide channel;

[0008] And fasteners, which are detachably mounted on the base, are used to extend into the clamping hole to force the cantilever to deform into the guide channel and abut against the outer peripheral wall of the wire outlet.

[0009] Furthermore, the outer wall of the cantilever is formed with an abutment plane that mates with the fastener.

[0010] Furthermore, a sleeve is provided outside the guide nozzle, the sleeve extends into the clamping hole and the sleeve protrudes radially to form a flange that is fixed to the base.

[0011] Furthermore, a flange is installed between the flange and the base.

[0012] Furthermore, the flange and the flange respectively have protruding positioning portions and recessed positioning grooves for the positioning portions to engage.

[0013] Furthermore, the flange protrudes in a direction away from the flange to form a clamping part, which extends into the clamping hole and is located between the outer peripheral wall of the sleeve and the wall of the clamping hole.

[0014] This utility model also provides a laser welding machine, including the above-mentioned quick-release wire ejection assembly.

[0015] The beneficial effects of this utility model are as follows: This utility model utilizes the guide nozzle and the wire outlet nozzle that form a nested relationship to ensure the coaxiality of the two, and the guide nozzle and the wire outlet nozzle are synchronously fixed by the cooperation of the cantilever and the fastener, which avoids the deformation of the wire outlet nozzle caused by the fastener directly pressing the wire outlet nozzle. At the same time, the axial position of the wire outlet nozzle can be adjusted and quickly replaced by tightening or loosening the fastener, which improves the operating efficiency.

[0016] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional schematic diagram of the quick-release wire ejection assembly of this utility model;

[0019] Figure 2 This is a front view of the quick-release wire ejection assembly of this utility model;

[0020] Figure 3 This is a first-view sectional view of the quick-release wire ejection assembly of this utility model;

[0021] Figure 4 This is a cross-sectional view from a second perspective of the quick-release wire ejection assembly of this utility model;

[0022] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0023] Figure 6 This is an exploded view of the quick-release screw ejection assembly of this utility model;

[0024] Figure 7 This utility model's quick-release screw-out assembly and base assembly diagram;

[0025] In the picture:

[0026] 1. Base; 101. Clamping hole;

[0027] 2. Guide nozzle; 201. Guide channel; 202. Notch; 203. Cantilever; 2031. Abutment plane;

[0028] 3. Cable feed nozzle;

[0029] 4. Fasteners;

[0030] 5. Sleeve; 501. Flange; 502. Positioning part; 503. Contouring structure;

[0031] 6. Flange; 601. Positioning groove; 602. Clamping part;

[0032] 7. Drive wheel;

[0033] 8. Driven wheel;

[0034] 9. Welding wire. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0036] like Figure 1-7 As shown, a wire feeding mechanism with measurable length is mounted on a base 1 to receive and guide the wire 9 from the wire spool, comprising:

[0037] The guide nozzle 2 is detachably fixed in the clamping hole 101 of the base 1. A guide channel 201 is formed inside the guide nozzle 2. A notch 202 extending to the outer peripheral wall of the guide nozzle 2 is opened on the inner wall of the guide channel 201. A cantilever 203 is formed at the notch 202, with one end suspended and the other end connected to the inner wall of the notch 202. The cantilever 203 can undergo elastic deformation under pressure.

[0038] The wire outlet nozzle 3 is inserted into the guide channel 201 and one end extends out of the guide channel 201. That is, the wire outlet nozzle 3 is partially inserted into the guide channel 201 and is coaxially fixed with the guide nozzle 2. A wire outlet channel is formed inside the wire outlet nozzle 3.

[0039] Fastener 4 is detachably mounted on the base 1 and is used to extend into the clamping hole 101 to force the cantilever 203 to deform into the guide channel 201 and abut against the outer peripheral wall of the thread outlet 3. Fastener 4 can be a screw, which is threaded to the base 1. When the fastener 4 is tightened, its head extends into the clamping hole 101 to compress the cantilever 203 and produce elastic deformation to press the thread outlet 3. Thus, on the one hand, the guide nozzle 2 can be fixed in the base 1 by the abutment between the bolt and the cantilever 203, and on the other hand, the thread outlet 3 can be fixed in the guide nozzle 2 by the deformation of the cantilever 203. This avoids the deformation of the thread outlet 3 caused by the fastener 4 directly pressing the thread outlet 3. When the fastener 4 is loosened, it releases the pressure on the cantilever 203 and the pressure on the thread outlet 3 at the same time. Both the guide nozzle 2 and the thread outlet 3 can move freely in the axial direction, so that the position adjustment and quick replacement of the thread outlet 3 can be realized.

[0040] This application utilizes the guide nozzle 2 and the wire outlet nozzle 3, which form a nested relationship, to ensure their coaxiality. Furthermore, the guide nozzle 2 and the wire outlet nozzle 3 are synchronously fixed through the cooperation of the cantilever 203 and the fastener 4, which avoids the deformation of the wire outlet nozzle 3 caused by the fastener 4 directly pressing the wire outlet nozzle 3. At the same time, the axial position of the wire outlet nozzle can be adjusted and quickly replaced by tightening or loosening the fastener, thereby improving the operating efficiency.

[0041] In some examples, the outer wall of the cantilever 203 is formed with an abutment plane 2031 that mates with the fastener 4. The abutment plane 2031 of the fastener 4 can improve the stability during abutment, thereby improving the stability of the installation of the wire nozzle 3.

[0042] In some examples, the guide nozzle 2 is fitted with a sleeve 5. The sleeve 5 has a first channel for inserting the guide nozzle 2 and a second channel for passing through the welding wire 9. The first channel is located below the second channel. The two are interconnected and a limiting step is formed between them to axially limit the guide nozzle 2. The guide nozzle 2 is inserted into the first channel and one end of it extends out of the first channel. The guide nozzle 2 is coaxially set by inserting it into the sleeve 5. The sleeve 5 extends into the clamping hole 101 and protrudes radially to form a flange 501 that is fixed to the base 1. The flange 501 and the base 1 can be fixed by bolts. The outer peripheral walls of the lower ends of the sleeve 5 and the guide nozzle 2 are both tapered to form a conical structure.

[0043] In some examples, a flange 6 is installed between the flange 501 and the base 1, that is, the base 1 and the sleeve 5 are fixed by the flange 6. First, the base 1 and the flange 6 are fixed together by the first bolt to form an assembly, and then the sleeve 5 and the flange 6 are fixed by the second bolt. The number of the first bolt and the second bolt can be, but is not limited to, one, two or three, etc.

[0044] In some examples, the flange 6 and the flange 501 respectively have a protruding positioning part 502 and a recessed positioning groove 601 for the positioning part 502 to be engaged. Since the sleeve 5 is connected to the wire feeding assembly, and the wire feeding assembly consists of a driving wheel 7 and a driven wheel 8, in order to improve the connection accuracy, the sleeve 5 has a contour structure 503 that extends into the gap between the driving wheel 7 and the driven wheel 8. Therefore, the sleeve 5 has a directional requirement in its circumferential direction when it is installed. The circumferential limit of the sleeve 5 can be achieved by the cooperation of the positioning part 502 and the positioning groove 601.

[0045] In some examples, the flange 6 protrudes in a direction away from the flange 501 to form a clamping part 602. The clamping part 602 extends into the clamping hole 101 and is located between the outer peripheral wall of the sleeve 5 and the hole wall of the clamping hole 101. The extension length of the clamping part 602 is not less than the extension length of the clamping hole 101. The clamping part 602 is sleeved on the outside of the sleeve 5, thereby realizing the coaxial arrangement of the flange 6 and the sleeve 5. The sleeve 5 is sleeved on the outside of the guide nozzle 2, thereby realizing the coaxial arrangement of the sleeve 5 and the guide nozzle 2. The guide nozzle 2 is sleeved on the outside of the wire outlet nozzle 3, thereby realizing the coaxial arrangement of the guide nozzle 2 and the wire outlet nozzle 3. Therefore, the coaxial arrangement of the four components—flange 6, sleeve 5, guide nozzle 2, and wire outlet nozzle 3—is achieved by sequentially sleeved, thereby improving the installation accuracy of the wire outlet nozzle 3.

[0046] As an example, a laser welding machine includes the aforementioned quick-release wire feeding assembly and wire feeding assembly. The wire feeding assembly includes a motor, a drive wheel 7 connected to the output end of the motor, and a driven wheel 8 spaced apart from the drive wheel 7. A wire channel for the welding wire 9 to pass through is formed between the drive wheel 7 and the driven wheel 8. The sleeve 5 is connected to the wire channel and has a contour structure 503 extending into the wire channel to improve the feeding accuracy of the welding wire 9.

[0047] The structural principle of the above quick-release wire ejection assembly is as follows:

[0048] First, insert the clamping part 602 of the flange 6 into the clamping hole 101 of the base 1 and fix the flange 6 to the base 1 with bolts. Then, insert the sleeve 5 into the clamping part 602 and insert the positioning part 502 into the positioning groove 601 to adjust the circumferential position of the sleeve 5 and fix the sleeve 5 to the flange 6 with bolts. Then, insert the thread outlet 3 into the guide nozzle 2 to form an assembly. Insert the assembly into the sleeve 5 and fix the guide nozzle 2 and the thread outlet 3 synchronously by the abutment of the fastener 4 and the cantilever 203. This can avoid the deformation of the thread outlet 3 caused by the fastener 4 directly pressing the thread outlet 3. At the same time, the flange 6, sleeve 5, guide nozzle 2 and thread outlet 3 are arranged in sequence to achieve coaxial setting of the four, which improves the installation accuracy of the thread outlet 3. The thread outlet 3 inserted along the axis can be quickly adjusted and replaced in circumferential position by tightening or loosening the fastener 4.

[0049] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A quick release wire assembly mounted on a base (1) for receiving and guiding a welding wire (9) from a wire spool and leading it out, characterized in that: include: The guide nozzle (2) is detachably fixed in the clamping hole (101) of the base (1). A guide channel (201) is formed inside the guide nozzle (2). A notch (202) extending to the outer peripheral wall of the guide nozzle (2) is opened on the inner wall of the guide channel (201). A cantilever (203) is formed at the notch (202), with one end suspended and the other end connected to the inner wall of the notch (202). The wire outlet (3) is inserted into the guide channel (201) and one end extends out of the guide channel (201); and fasteners (4), which are detachably mounted on the base (1) for extending into the clamping hole (101) to force the cantilever (203) to deform into the guide channel (201) and abut against the outer peripheral wall of the wire outlet (3).

2. The quick-release wire ejection assembly according to claim 1, characterized in that: The outer wall of the cantilever (203) has an abutment plane (2031) that mates with the fastener (4).

3. The quick-release wire ejection assembly according to claim 1, characterized in that: The guide nozzle (2) is fitted with a sleeve (5), which extends into the clamping hole (101) and protrudes radially to form a flange (501) that is fixed to the base (1).

4. The quick-release wire ejection assembly according to claim 3, characterized in that: A flange (6) is installed between the flange (501) and the base (1).

5. The quick-release wire ejection assembly according to claim 4, characterized in that: The flange (6) and the flange (501) are respectively provided with a protruding positioning part (502) and a recessed positioning groove (601) for the positioning part (502) to be inserted into.

6. The quick-release wire ejection assembly according to claim 4, characterized in that: The flange (6) protrudes in a direction away from the flange (501) to form a clamping part (602), which extends into the clamping hole (101) and is located between the outer peripheral wall of the sleeve (5) and the hole wall of the clamping hole (101).

7. A laser welding machine, characterized in that: Includes the quick-release wire ejection assembly as described in any one of claims 1-6.

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