Quick-release wire feeding mechanism and welding machine

Abstract

The utility model belongs to the field of welding, and relates to a quick-release wire feeding mechanism, which is characterized in that a sliding sleeve is sleeved on the outer side of a fixed pipe and can reciprocate along the axial direction of the fixed pipe so as to be switched between a locking position and an unlocking position; one end of the wire feeding pipe is inserted into the fixed pipe along the axial direction of the fixed pipe; the fixed pipe is provided with a hollow mounting part, a ball is placed in the mounting part, the sliding sleeve is provided with an avoiding part matched with the ball, and the wire feeding pipe is provided with a clamping part matched with the ball. According to the utility model, the wire feeding pipe can be quickly disassembled and assembled, so that a welding operator can quickly switch a wire feeding state, and the working efficiency of the welding operator is improved. The utility model further discloses a welding machine with the quick-release wire feeding mechanism.

Description

Technical Field

[0001] The utility model belongs to the field of welding, and in particular relates to a quick-release wire feeding mechanism and a welding machine. Background Art

[0002] Although the wire feeding mechanism of the current welding machine has a simple structure, it has the defect of being complicated to disassemble and assemble.

[0003] like Figure 1 As shown, the fixed tube is connected to the wire feed mounting piece and then clamped on both sides with clamping nuts to achieve assembly. Since two clamping nuts need to be operated during assembly and disassembly, both fixing and disassembly are relatively complicated, and the wire feed state cannot be quickly switched, which brings certain inconveniences to the welding operator. Utility Model Content

[0004] In order to solve the above technical problems, the utility model discloses a quick-release wire feeding mechanism, which can realize the rapid disassembly and assembly of the wire feeding tube, so that the welding operator can quickly switch the wire feeding state and improve his work efficiency. The utility model also discloses a welding machine having the above quick-release wire feeding mechanism.

[0005] The specific technical solutions of the utility model are as follows:

[0006] A quick-release wire feeding mechanism, comprising:

[0007] A fixed tube and a sliding sleeve, wherein the sliding sleeve is sleeved on the outside of the fixed tube and can reciprocate along the axial direction of the fixed tube to switch between a locked position and an unlocked position; and

[0008] A wire feeding tube, one end of which is inserted into the fixed tube along the axial direction of the fixed tube;

[0009] The fixing tube is provided with a hollow mounting portion, in which a ball is placed, the sliding sleeve is provided with a relief portion cooperating with the ball, and the wire feeding tube is provided with a clamping portion cooperating with the ball;

[0010] When the sliding sleeve is in the locking position, the sliding sleeve presses the ball into the clamping portion to clamp the wire feeding tube and the wire feeding fixing frame;

[0011] When the sliding sleeve is in the unlocking position, the ball is located in the avoidance portion, so that the wire feed tube can be separated from the fixed tube. The sliding sleeve is an operating component. By driving the sliding sleeve, the ball is engaged in different positions, thereby achieving locking or unlocking. The structure is simple and easy to operate, and can achieve rapid assembly and disassembly of the wire feed tube. During assembly, the ball is engaged in the engaging portion, so that the wire feed tube cannot move axially along the fixed tube. During unlocking, the sliding sleeve is driven to move axially along the fixed tube to prevent the sliding sleeve from pressing the ball, so that the ball enters the avoidance portion, that is, the gap between the sliding sleeve and the fixed tube. At this time, the ball can be separated from the engaging portion, so that the wire feed tube can move axially along the fixed tube, thereby achieving disassembly.

[0012] Preferably, a reset member is provided between the fixed tube and the sliding sleeve in the axial direction of the fixed tube, so as to return the sliding sleeve from the non-locking position to the locking position;

[0013] A supporting member is further provided between the fixed tube and the sliding sleeve, and the supporting member cooperates with the reset member to limit the sliding sleeve to a locked position.

[0014] The reset member can push the sliding sleeve to the locking position to ensure the connection stability between the ball and the clamping portion, while the abutment member can well limit the position of the sliding sleeve, thereby well meeting the locking requirements in combination with the reset member.

[0015] Preferably, the reset member comprises:

[0016] a first boss provided on the fixed tube, the first boss facing the inner wall of the sliding sleeve;

[0017] a second boss provided on the sliding sleeve, the second boss facing the outer wall of the fixed tube; and

[0018] A return spring is provided between the first boss and the second boss.

[0019] The structure is simple and easy to set up, and can well achieve the purpose of resetting the sliding sleeve.

[0020] Preferably, the abutting member comprises:

[0021] a first groove provided at an end portion of the fixed pipe;

[0022] A second groove provided at the end of the sliding sleeve; and

[0023] A clamping member, one end of which is arranged in the first groove, and the other end of which cooperates with the second groove, is used to abut against the sliding sleeve when the return spring releases stored energy.

[0024] The first groove and the second groove are located at the ends of the fixed tube and the sliding sleeve that are close to each other, and are located in the direction of the force when the return spring releases the stored energy. Therefore, when the clamping member is arranged in the first groove and the second groove is used to abut the sliding sleeve, excessive movement of the sliding sleeve can be avoided with a simple structure.

[0025] Preferably, the surface of the second boss is configured as a pressing portion for pressing the ball against the clamping portion.

[0026] The structure is simple, easy to process, easy to achieve abutment during sliding, and has good compactness.

[0027] Preferably, the mounting portion is configured as a plurality of through holes arranged along the circumference of the fixed pipe.

[0028] In the case of arranging a plurality of through holes, the force on the wire feeding tube in the locked state can be balanced, thereby better avoiding axial movement along the fixed tube in this state.

[0029] Preferably, the clamping portion is configured as a plurality of grooves arranged along the circumference of the wire feeding tube.

[0030] The clamping portion and the mounting portion cooperate with each other, so when a plurality of grooves are provided on the clamping portion, it is also possible to ensure that the force on the wire feed tube is balanced, thereby preventing the wire feed tube from moving axially along the fixed tube in the locked state.

[0031] Preferably, the bottom of the groove is a conical gathering structure.

[0032] In addition to satisfying the clamping of the ball, this structure can also make the ball easily escape from the groove and enter the avoidance portion when the sliding sleeve is unlocked, thereby better achieving unlocking.

[0033] Preferably, the wire feeding tube comprises:

[0034] a tube body; and

[0035] A pipe sleeve, the pipe sleeve is sleeved on the outside of the pipe body, the sleeve has a fastening screw 1 arranged along its radial direction, and the fastening screw 1 is pressed against the outer surface of the pipe body;

[0036] Wherein, the pipe sleeve is inserted into the fixed pipe.

[0037] The setting of the pipe sleeve can well meet the specific use requirements, enhance the stability and safety of the wire feeding tube, and ensure smooth wire feeding.

[0038] Welding machines, including:

[0039] a quick-release wire feed mechanism as described above;

[0040] A wire feeding fixture, wherein the wire feeding fixture is provided with a waist-shaped hole; and

[0041] A wire feeding rotary member, one end of which is threadedly connected to the fixed pipe, and the other end of which is connected to the waist-shaped hole through a second fastening screw.

[0042] The welding machine can realize the position correction of the fixed pipe through the waist-shaped hole and the wire feeding rotary part, expand the scope of use, and has a quick-release function to facilitate the operation of the welding operator.

[0043] Compared with the prior art, the utility model can realize the installation and positioning of the wire feeding tube, facilitate the disassembly of the wire feeding tube, and effectively improve the disassembly and assembly efficiency of the wire feeding tube, thereby quickly switching the wire feeding state, and no disassembly and assembly tools are required, thereby effectively improving the wire changing efficiency and welding adaptability of the welding operator in actual welding applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the prior art;

[0045] Figure 2 A schematic diagram of an embodiment of the present utility model;

[0046] Figure 3 for Figure 2 sectional view of

[0047] Figure 4 This is a partial schematic diagram of a fixed pipe in an embodiment of the present utility model;

[0048] Figure 5 It is a partial schematic diagram of the wire feeding tube in the embodiment of the present utility model.

[0049] In the figure: 1-fixed tube; 2-sliding sleeve; 3-wire feeding tube; 4-mounting part; 5-ball; 6-avoidance part; 7-clamping part; 8-first boss; 9-second boss; 10-reset spring; 11-pressing part; 12-first groove; 13-second groove; 14-clamping part; 15-tube body; 16-tube sleeve; 17-fastening screw 1; 18-wire feeding fixing part; 19-wire feeding rotating part; 20-waist-shaped hole; 21-fastening screw 2. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0051] like Figures 2 to 5As shown, a quick-release wire feeding mechanism includes a fixed tube 1 and a sliding sleeve 2, and a wire feeding tube 3; the sliding sleeve 2 is sleeved on the outside of the fixed tube 1, and can reciprocate along the axial direction of the fixed tube 1 to switch between a locked position and an unlocked position; one end of the wire feeding tube 3 is inserted into the fixed tube 1 along the axial direction of the fixed tube 1; the fixed tube 1 is provided with a hollow mounting portion 4, in which a ball 5 is placed, the sliding sleeve 2 is provided with a avoidance portion 6 cooperating with the ball 5, and the wire feeding tube 3 is provided with a clamping portion 7 cooperating with the ball 5; when the sliding sleeve 2 is in the locked position, the sliding sleeve 2 presses the ball 5 in the clamping portion 7 to clamp the wire feeding tube 3 and the wire feeding fixed frame; when the sliding sleeve 2 is in the unlocked position, the ball 5 is located in the avoidance portion 6, so that the wire feeding tube 3 can be separated from the fixed tube 1.

[0052] like Figure 2 and Figure 3 As shown, the initial position of the sliding sleeve 2 is located at the left end of the fixed tube 1. At this time, the ball 5 is squeezed in the clamping portion 7, so that the wire feeding tube 3 cannot move to the left along the wire feeding fixture 18. Therefore, the wire feeding tube 3 and the fixed tube 1 meet the requirements of stable connection through good clamping; when the wire feeding tube 3 needs to be removed, the wire feeding tube 3 moves to the left. At this time, the ball 5 is no longer squeezed by the sliding sleeve 2, so the ball 5 can be disengaged from the clamping portion 7 and enter the avoidance portion 6. Therefore, the connection relationship between the wire feeding tube 3 and the fixed tube 1 is invalid, so that the wire feeding tube 3 can move to the left and disengage from the wire feeding fixture 18, so that when the sliding sleeve 2 switches from the locked position to the unlocked position, the wire feeding tube 3 can be quickly disassembled.

[0053] Furthermore, in the axial direction of the fixed tube 1, a reset member is provided between the fixed tube 1 and the sliding sleeve 2 to return the sliding sleeve 2 in the unlocked position to the locked position; a supporting member is also provided between the fixed tube 1 and the sliding sleeve 2, and the supporting member cooperates with the reset member to limit the sliding sleeve 2 in the locked position. The provision of the reset member and the supporting member can achieve positional restriction of the sliding sleeve 2 in the locked position, thereby improving the locking effectiveness. Further, as Figure 4As shown, the reset member includes a first boss 8 provided on the fixed tube 1, a second boss 9 provided on the sliding sleeve 2, and a reset spring 10. The first boss 8 faces the inner wall of the sliding sleeve 2, while the second boss 9 faces the outer wall of the fixed tube 1. The reset spring 10 is disposed between the first boss 8 and the second boss 9. Furthermore, the surface of the second boss 9 is configured to press the ball 5 against the pressing portion 11 in the clamping portion 7. Specifically, when installing the wire feed tube 3, the sliding sleeve 2 is first moved to the right, so that the ball 5 is located in the avoidance portion 6. At this time, the reset spring 10 stores energy. The wire feed tube 3 is then inserted, and the sliding sleeve 2 is released. The reset spring 10 releases the stored energy, pushing the sliding sleeve 2 to the left, and finally resting it against the abutting member, thereby completing the assembly. In this embodiment, the first boss 8 and the second boss 9 are both annular bosses, and the reset spring 10 is an axial spring, which makes it easy to install the reset spring 10. The surface of the second boss 9 serves as the portion for pressing the ball 5 , thus avoiding the need for additional structures and / or components, thereby greatly improving the compactness of the structure.

[0054] In this embodiment, if Figure 5 As shown, the abutment member includes a first groove 12 provided at the end of the fixed tube 1, a second groove 13 provided at the end of the sliding sleeve 2, and a clamping member 14. One end of the clamping member 14 is disposed in the first groove 12, and the other end cooperates with the second groove 13, for abutting the sliding sleeve 2 when the return spring 10 releases stored energy. Both the first groove 12 and the second groove 13 are annular grooves. In this embodiment, the first groove 12 is a semi-open groove, and the second groove 13 is an annular groove. The clamping member 14 is a retaining spring, which is retained in the second groove 13. After the return spring 10 releases stored energy, the bottom of the first groove 12 contacts the retaining spring, thereby limiting the movement of the sliding sleeve 2.

[0055] In this embodiment, the mounting portion 4 is configured as a plurality of through holes arranged along the circumference of the fixed tube 1. The clamping portion 7 is configured as a plurality of grooves arranged along the circumference of the wire feeding tube 3. The bottom of the groove is a conical gathering structure. Furthermore, the diameter of the mounting portion 4 gradually decreases from the outside to the inside. When the ball 5 is located at the innermost side of the mounting portion 4, a portion of the ball 5 protrudes from the mounting portion 4 and is located in the inner plug-in interface of the fixed tube 1. Thus, when the wire feeding tube 3 is inserted into the above-mentioned plug-in interface, the ball 5 can enter the clamping portion 7, thereby achieving stable clamping. The mounting portion 4 and the clamping portion 7 correspond one to one, thereby improving the clamping stability. When the bottom of the groove is in a conical gathering structure, in addition to achieving the clamping of the ball 5, it also meets the requirement of the ball 5 sliding out of the way, making the quick release process smoother.

[0056] In this embodiment, the wire feed tube 3 includes a tube body 15 and a sleeve 16. The sleeve 16 is sleeved onto the outside of the tube body 15. The sleeve has a radially arranged fastening screw 17, which abuts against the outer surface of the tube body 15. The sleeve 16 is inserted into the fixed tube 1. The provision of the sleeve 16 can well meet specific usage requirements, enhance the stability and safety of the wire feed tube 3, and ensure smooth wire feeding.

[0057] On the basis of the above embodiment, this embodiment also discloses a welding machine, which, in addition to the above quick-release wire feeding mechanism, further includes a wire feeding fixing member 18 and a wire feeding rotating member 19; Figure 2 and Figure 3 As shown, the wire feed fixture 18 is provided with a waist-shaped hole 20; one end of the wire feed rotator 19 is threadedly connected to the fixed tube 1, and the other end is connected to the waist-shaped hole 20 via a second fastening screw 21. The waist-shaped hole 20 allows the position of the wire feed rotator 19 to be adjusted along the long diameter of the waist-shaped hole 20. Since the wire feed rotator 19 and the wire feed fixture 18 are connected to the waist-shaped hole 20 via the second fastening screw 21, the wire feed rotator 19 can be rotated along the axis of the second fastening screw 21, thereby achieving angle adjustment. Therefore, the fixed tube 1 has the ability to adjust in multiple directions to adapt to different working conditions.

[0058] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications shall also be considered within the scope of protection of the present invention.

Claims

1. A quick-release wire feeding mechanism, characterized in that: include: A fixed tube and a sliding sleeve, wherein the sliding sleeve is sleeved on the outside of the fixed tube and can reciprocate along the axial direction of the fixed tube to switch between a locked position and an unlocked position; as well as A wire feeding tube, one end of which is inserted into the fixed tube along the axial direction of the fixed tube; The fixing tube is provided with a hollow mounting portion, in which a ball is placed, the sliding sleeve is provided with a relief portion cooperating with the ball, and the wire feeding tube is provided with a clamping portion cooperating with the ball; When the sliding sleeve is in the locking position, the sliding sleeve presses the ball into the clamping portion to clamp the wire feeding tube and the wire feeding fixing frame; When the sliding sleeve is located at the unlocking position, the ball is located at the avoidance portion, so that the wire feeding tube can be separated from the fixed tube.

2. A quick-release wire feeding mechanism according to claim 1, characterized in that: In the axial direction of the fixed tube, a reset member is provided between the fixed tube and the sliding sleeve to return the sliding sleeve from the unlocked position to the locked position; A supporting member is further provided between the fixed tube and the sliding sleeve, and the supporting member cooperates with the reset member to limit the sliding sleeve to a locked position.

3. A quick-release wire feeding mechanism according to claim 2, characterized in that: The reset member comprises: a first boss provided on the fixed tube, the first boss facing the inner wall of the sliding sleeve; a second boss provided on the sliding sleeve, the second boss facing the outer wall of the fixed tube; and A return spring is provided between the first boss and the second boss.

4. A quick-release wire feeding mechanism according to claim 2, characterized in that: The abutting member comprises: a first groove provided at an end portion of the fixed pipe; A second groove provided at the end of the sliding sleeve; and A clamping member, one end of which is arranged in the first groove, and the other end of which cooperates with the second groove, is used to abut against the sliding sleeve when the return spring releases stored energy.

5. A quick-release wire feeding mechanism according to claim 3, characterized in that: The surface of the second boss is configured as a pressing portion for pressing the ball against the clamping portion.

6. A quick-release wire feeding mechanism according to claim 1, characterized in that: The mounting portion is configured as a plurality of through holes arranged along the circumference of the fixed pipe.

7. A quick-release wire feeding mechanism according to claim 1, characterized in that: The clamping portion is configured as a plurality of grooves arranged along the circumference of the wire feeding tube.

8. A quick-release wire feeding mechanism according to claim 7, characterized in that: The bottom of the groove is a conical gathering structure.

9. A quick-release wire feeding mechanism according to claim 1, characterized in that: The wire feeding tube comprises: a tube body; and A pipe sleeve, the pipe sleeve is sleeved on the outside of the pipe body, the sleeve has a fastening screw 1 arranged along its radial direction, and the fastening screw 1 is pressed against the outer surface of the pipe body; Wherein, the pipe sleeve is inserted into the fixed pipe.

10. Welding machine, characterized in that, include: The quick-release wire feeding mechanism according to any one of claims 1 to 9; A wire feeding fixture, wherein the wire feeding fixture is provided with a waist-shaped hole; as well as A wire feeding rotary member, one end of which is threadedly connected to the fixed pipe, and the other end of which is connected to the waist-shaped hole through a second fastening screw.

Images