Welding wire feeding wheel structure

Abstract

The utility model discloses a welding wire feeding wheel structure, which relates to the technical field of welding wire conveying and comprises an inner cylinder and an outer cylinder, the outer cylinder is sleeved on the inner cylinder, a plurality of circles of wire slots with different diameters are arranged on the circumferential surface of the outer cylinder, and a position adjusting mechanism is arranged between the outer cylinder and the inner cylinder. And the position adjusting mechanism can change the position of the wire slot on the inner cylinder. According to the utility model, the plurality of wire ducts are arranged, and the outer cylinder can move on the inner cylinder, so that the specifications of the wire ducts in use can be directly changed without replacing the wire feeding wheel, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of welding wire feeding, in particular to a welding wire feeding wheel structure. Background Art

[0002] A wire feeder is a device that feeds welding wire and consists of a motor and a wire feed roll. Existing wire feed rolls only have one slot and can only accommodate one size of welding wire. This makes it inconvenient to remove and replace the wire feed roll when changing wire sizes. Utility Model Content

[0003] The utility model provides a welding wire feeding wheel structure to solve the problems existing in the above-mentioned prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A welding wire feeding wheel structure, comprising:

[0006] The inner cylinder is provided with an inner hole for connecting the drive shaft of the wire feeder.

[0007] The outer cylinder is sleeved on the inner cylinder, and a plurality of wire grooves of different diameters are provided on the circumferential surface of the outer cylinder. A position adjustment mechanism is provided between the outer cylinder and the inner cylinder, and the position adjustment mechanism can move the outer cylinder along the axis center of the inner cylinder to change the position of the wire groove on the inner cylinder.

[0008] Preferably, the position adjustment mechanism includes a driving block fixed on the inner cylinder and an adjusting cylinder movably sleeved on the inner cylinder, the outer cylinder is fixed on the adjusting cylinder, and a stepped driving groove cooperating with the driving block is provided on the circumferential surface of the adjusting cylinder.

[0009] Preferably, the stepped drive groove includes drive unit grooves whose number is the same as the number of wire grooves, one end of the drive unit groove is a right-angle limit portion, and the other end is a slope guide portion, and multiple drive unit grooves are distributed in a stepped ring shape on the circumferential surface of the adjustment cylinder.

[0010] Preferably, one end of the driving block can cooperate with the right-angle limit portion to transmit torque in one direction, and the other end can cooperate with the slope guide portion to drive the adjusting cylinder to move on the inner cylinder.

[0011] Preferably, a flange is provided at one end of the inner cylinder, and a spring is sleeved on the inner cylinder between the flange and the adjusting cylinder.

[0012] Preferably, the outer cylinder and the regulating cylinder are integrally formed.

[0013] Preferably, the cross section of the wire groove is arc-shaped, and the distance between the center point of the arc and the axis of the outer cylinder is equal.

[0014] Preferably, the wire troughs are arranged in sequence according to the diameter of the arc of cross section.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting multiple wire grooves and allowing the outer cylinder to move on the inner cylinder, the specifications of the wire groove in use can be directly changed without replacing the wire feeding wheel, which is convenient to use; by setting a driving block and an adjusting cylinder, the driving block can cooperate with the stepped driving groove on the adjusting cylinder, changing the driving unit groove corresponding to the driving block, so that the outer cylinder can move on the inner cylinder; the provided spring can maintain the cooperation between the driving block and the driving unit groove, thereby fixing the wire groove in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front view of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cooperation between the inner cylinder and the adjustment cylinder of the utility model;

[0020] Figure 4 This is a three-dimensional diagram of the adjustment cylinder of the utility model;

[0021] Figure 5 This is a three-dimensional diagram of the regulating cylinder and the outer cylinder of the utility model;

[0022] Figure 6 It is a three-dimensional diagram of the regulating cylinder of the present utility model.

[0023] In the figure: 1. Inner cylinder, 2. Inner hole, 3. Outer cylinder, 4. Wire groove, 5. Drive block, 6. Adjustment cylinder, 7. Step-shaped drive groove, 8. Drive unit groove, 9. Right-angle limit part, 10. Slope guide part, 11. Flange, 12. Spring. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions implemented in the present invention in conjunction with the accompanying drawings. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 6 As shown, a wire feeding wheel structure provided by an embodiment of the present invention comprises an inner cylinder 1 and an outer cylinder 3. An inner hole 2 for connecting a driving shaft of a wire feeder is provided on the inner cylinder 1, and a keyway is provided on the inner hole 2.

[0026] The outer cylinder 3 is movably sleeved on the inner cylinder 1 , and a plurality of wire grooves 4 with different diameters are provided on the circumferential surface of the outer cylinder 3 , and each circle of wire grooves 4 is parallel.

[0027] A position adjustment mechanism is provided between the outer cylinder 3 and the inner cylinder 1. The function of the position adjustment mechanism is to enable the outer cylinder 3 to move along the axis of the inner cylinder 1, change the position of the wire groove 4 on the inner cylinder 1, and thus change the working wire groove 4 to adapt to welding wires of different specifications without disassembling the wire feed wheel. Figure 2 As shown, the present embodiment of the present invention has four turns of wire grooves 4. The cross-section of the wire grooves 4 is arc-shaped, with the center points of the arcs equidistant from the axis of the outer cylinder 3. The wire grooves 4 are arranged sequentially according to the diameter of the arcs. This allows the wire to be clamped by two wire feed rolls, and since the center points of each turn of wire grooves 4 align, there is no need to readjust the spacing between the wire feed rolls when changing wire grooves 4.

[0028] To facilitate adjustment of the position of the outer cylinder 3 on the inner cylinder 1, the position adjustment mechanism of the present invention includes a drive block 5 fixed to the inner cylinder 1 and an adjustment cylinder 6 movably sleeved thereon. The outer cylinder 3 is fixed to the adjustment cylinder 6, or the outer cylinder 3 and adjustment cylinder 6 can be integrally formed. The circumferential surface of the adjustment cylinder 6 is provided with a stepped drive groove 7 that mates with the drive block 5. The position of the outer cylinder 3 is adjusted by changing the mating position of the drive block 5 and the stepped drive groove 7.

[0029] like Figures 3 to 6 As shown, the stepped drive slot 7 includes four drive unit slots 8, each with a right-angled stopper 9 at one end and a ramped guide 10 at the other. The four drive unit slots 8 are arranged in a stepped, annular pattern around the circumference of the adjustment cylinder 6. When the inner cylinder 1 rotates to feed the welding wire, one end of the drive block 5 engages with the right-angled stopper 9 of one of the drive unit slots 8, transmitting torque and driving the outer cylinder 3 to rotate, allowing the wire trough 4 to feed the welding wire. To change the wire trough 4, the outer cylinder 3 is rotated in the opposite direction, allowing the other end of the drive block 5 to engage with the ramped guide 10. Since the drive block 5 is fixed to the inner cylinder 1, it will not move unless the inner cylinder 1 is stationary, allowing the adjustment cylinder 6 to move on the inner cylinder 1.

[0030] One end of the inner cylinder 1 is provided with a flange 11, and a spring 12 is sleeved on the inner cylinder 1 between the flange 11 and the adjustment cylinder 6. The spring 12 pushes the adjustment sleeve to make the drive block 5 fit the right-angle limiter 9, thereby maintaining the fit of the drive block 5 with a certain drive unit slot 8.

[0031] It will be apparent 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 essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A welding wire feeding wheel structure, characterized in that: include: An inner cylinder (1) is provided with an inner hole (2) for connecting to a drive shaft of a wire feeder. An outer cylinder (3), the outer cylinder (3) being sleeved on the inner cylinder (1), a plurality of wire grooves (4) of different diameters being provided on the circumferential surface of the outer cylinder (3), a position adjustment mechanism being provided between the outer cylinder (3) and the inner cylinder (1), the position adjustment mechanism being capable of moving the outer cylinder (3) along the axis center of the inner cylinder (1) to change the position of the wire groove (4) on the inner cylinder (1); The position adjustment mechanism comprises a driving block (5) fixed on the inner cylinder (1) and an adjusting cylinder (6) movably sleeved on the inner cylinder (1); the outer cylinder (3) is fixed on the adjusting cylinder (6); and a stepped driving groove (7) is provided on the circumferential surface of the adjusting cylinder (6) to cooperate with the driving block (5); The stepped drive groove (7) includes drive unit grooves (8) of the same number as the line grooves (4), one end of the drive unit groove (8) is a right-angle limit portion (9), and the other end is a slope guide portion (10), and a plurality of the drive unit grooves (8) are distributed in a stepped annular manner on the circumferential surface of the adjustment cylinder (6); One end of the driving block (5) can cooperate with the right-angle limit portion (9) to transmit torque in one direction, and the other end can cooperate with the slope guide portion (10) to drive the adjustment cylinder (6) to move on the inner cylinder (1).

2. A welding wire feed roller structure according to claim 1, characterized in that: One end of the inner cylinder (1) is provided with a flange (11), and a spring (12) is sleeved on the inner cylinder (1) between the flange (11) and the regulating cylinder (6).

3. A welding wire feed roller structure according to claim 1, characterized in that: The outer cylinder (3) and the regulating cylinder (6) are integrally formed.

4. A welding wire feed roller structure according to claim 1, characterized in that: The cross section of the wire groove (4) is in the shape of an arc, and the distance between the center point of the arc and the axis of the outer cylinder (3) is equal.

5. A welding wire feed roller structure according to claim 4, characterized in that: The wire troughs (4) are arranged in sequence according to the diameter of the arc of the cross section.

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