Wire feeding device with positioning function

Abstract

The utility model discloses a wire feeding device with a positioning function, which belongs to the field of welding equipment and comprises a wire feeding frame, a wire storage roller is rotatably arranged on the wire feeding frame, a wire outlet nozzle is arranged on one side of the wire storage roller on the wire feeding frame, and a wire feeding mechanism is arranged between the wire storage roller and the wire outlet nozzle. An identification mechanism used for identifying the position of a welding wire head is arranged on the wire outlet side of the wire outlet nozzle, and the control system processes identification signals of the identification mechanism and then controls the wire feeding mechanism to operate. The wire feeding frame moves in the transverse axis direction and the longitudinal axis direction under the control of the control system. The utility model aims to provide a wire feeding device with a positioning function, which can position and calibrate the position of a welding wire head.

Description

Technical Field

[0001] The utility model relates to the field of welding, in particular to a wire feeding device with a positioning function. Background Art

[0002] High-precision welding scenarios such as chip welding often use automatic welding equipment for welding. The workpiece is usually mounted on a fixed fixture, which is then moved to the welding location. The wire feeder then accurately guides the wire to the welding point. After the wire is moved, welding is performed. After welding is completed, the wire is cut to facilitate the removal of the workpiece and prepare for the welding of subsequent workpieces. However, due to variations in the welding and cutting processes, the position of the wire head may be slightly different after each cut. Since the wire feeding distance of the wire feeder is often fixed, changes in the position of the wire head will affect the contact between the wire and the welding point, thereby affecting the welding quality. To ensure the stability and consistency of welding quality, the position of the wire head needs to be accurately positioned and calibrated. Utility Model Content

[0003] The purpose of the present invention is to solve the above problems and provide a wire feeding device with a positioning function, which can locate and calibrate the position of the welding wire head.

[0004] To achieve the above objectives, the technical solution adopted by the utility model is a wire feeding device with a positioning function, which includes a wire feeding frame, a wire storage roller is rotatably provided on the wire feeding frame, a wire outlet nozzle is provided on one side of the wire storage roller on the wire feeding frame, a wire feeding mechanism is provided between the wire storage roller and the wire outlet nozzle, and an identification mechanism for identifying the position of the welding wire head is provided on the wire outlet side of the wire outlet nozzle. The control system controls the operation of the wire feeding mechanism after processing the identification signal of the identification mechanism; the wire feeding frame moves along the horizontal and vertical axis directions under the control of the control system.

[0005] Furthermore, a control plate is provided opposite to the identification mechanism to prevent other structures, components, etc. from interfering with the identification mechanism and thus affecting the identification effect.

[0006] Furthermore, in order to pull the welding wire to move, the wire feeding mechanism includes wire feeding rollers arranged opposite to each other, and at least one wire feeding roller is transmission-connected to the wire feeding motor.

[0007] Furthermore, in order to maintain the clamping of the welding wire to avoid errors in the wire feeding length caused by idling of the wire feeding roller, and to enable the wire feeding mechanism to adapt to welding wires of different diameters, one wire feeding roller is connected to the wire feeding motor, and the other wire feeding roller is arranged on a swing rod, and the swing rod is hinged to the wire feeding frame; in this way, the distance between the two wire feeding rollers can be adjusted.

[0008] Furthermore, the wire feeding frame is installed on the transverse axis frame, and the lower end of the transverse axis frame slides with the transverse axis guide rail at the upper end of the longitudinal axis frame, and the longitudinal axis frame is provided with a transverse axis driving mechanism for driving the transverse axis frame to slide; the longitudinal axis frame slides on the longitudinal axis guide rail under the action of the longitudinal axis driving mechanism, and the transverse axis guide rail and the longitudinal axis guide rail intersect vertically on the vertical projection plane, and the wire feeding frame is moved along the transverse and longitudinal axis directions under the control of the control system through the movement of the transverse axis frame and the longitudinal axis frame.

[0009] Furthermore, since welding wire is often alloyed and relatively hard, to protect workpieces like chips and circuit boards, it must not rub against the workpiece during movement. To this end, the wire feeder is driven vertically by a vertical drive mechanism mounted on a horizontal axis frame. During wire feeding, the wire nozzle and the wire feeder rise, allowing the wire to reach above the weld point. When the wire length from the nozzle reaches the specified requirement, the wire feeder descends, allowing the wire to contact the weld point, ensuring that the workpiece is not damaged.

[0010] The beneficial effects of the present invention are as follows: the position of the welding wire head is identified and positioned by the identification mechanism. After positioning, the identification signal of the identification mechanism is sent to the control system. After the control system processes and analyzes the signal, the wire feeding rack is controlled to move in the horizontal and vertical directions to ensure that the position of the welding wire head is maintained in a fixed range before each welding, so as to improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0012] Figure 2 for Figure 1 Enlarged structural diagram at point D in the middle.

[0013] Figure 3 for Figure 1 Schematic diagram of the structure in the A direction.

[0014] Figure 4 for Figure 1 Schematic diagram of the structure in the middle B direction.

[0015] Figure 5 for Figure 1 Schematic diagram of the C-direction structure.

[0016] The text labels in the figure indicate: 1. Wire feed frame; 2. Wire storage roller; 3. Wire outlet nozzle; 4. Identification mechanism; 5. Control plate; 6. Wire feed roller; 7. Wire feed motor; 8. Swing rod; 9. Horizontal axis frame; 10. Vertical axis frame; 11. Horizontal axis drive mechanism; 12. Vertical axis drive mechanism; 13. Vertical axis guide rail; 14. Vertical drive mechanism. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0018] Example 1, as Figure 1-5 As shown, the structure of this embodiment is a wire feeding device with a positioning function, which includes a wire feeding frame 1, a wire storage roller 2 is rotatably provided on the wire feeding frame 1, a wire outlet nozzle 3 is provided on the wire feeding frame 1 on one side of the wire storage roller 2, a wire feeding mechanism is provided between the wire storage roller 2 and the wire outlet nozzle 3, a welding wire head extends from the wire outlet side of the wire outlet nozzle 3, and an identification mechanism 4 and a control plate 5 for identifying the position of the welding wire head are relatively provided on both sides of the welding wire head. In this embodiment, the identification mechanism 4 and the control plate 5 are respectively placed on the upper and lower sides of the welding wire head. The color of the control plate 5 is different from the color of the welding wire, and the more obvious the contrast, the better. In this way, the recognition mechanism 4 can more clearly identify the welding wire head. The recognition mechanism 4 can adopt laser recognition, radio frequency recognition technology, etc. In this embodiment, visual recognition technology is adopted. For this purpose, the recognition mechanism 4 includes an image acquisition unit for acquiring images, a light source for providing illumination, etc. The recognition mechanism 4 is connected to the control system. The control system includes a processing unit for receiving, processing and analyzing the signal of the recognition mechanism 4, as well as a human-machine interface, etc. The control system controls the operation of the wire feeding mechanism after processing the recognition signal of the recognition mechanism 4; the wire feeding frame 1 moves along the horizontal and vertical axes under the control of the control system.

[0019] The wire feeding mechanism includes two wire feeding rollers 6 arranged opposite each other. In this embodiment, the two wire feeding rollers 6 are arranged opposite each other in an upper and lower direction. One of the wire feeding rollers 6 is rotatably mounted on the wire feeding frame 1 and is connected to a wire feeding motor 7 via a belt or the like. The wire feeding motor 7 is mounted on the wire feeding frame 1. The other wire feeding roller 6 is mounted on a swing arm 8, which is hinged to the wire feeding frame 1 via a spring hinge. The wire feeding roller 6 on the swing arm 8 moves toward the other wire feeding roller 6 under the action of the spring hinge.

[0020] The wire feeding frame 1 is installed on the transverse axis frame 9, and the lower end of the transverse axis frame 9 is slidably matched with the transverse axis guide rail at the upper end of the longitudinal axis frame 10. The longitudinal axis frame 10 is provided with a transverse axis driving mechanism 11 for driving the transverse axis frame 9 to slide; the longitudinal axis frame 10 slides on the longitudinal axis guide rail 13 under the action of the longitudinal axis driving mechanism 12, and the transverse axis guide rail and the longitudinal axis guide rail 13 intersect vertically on the vertical projection plane.

[0021] The wire feeding frame 1 moves vertically under the drive of the vertical driving mechanism 14 , and the vertical driving mechanism 14 is installed on the horizontal axis frame 9 .

[0022] The wire feeding motor 7, the horizontal axis drive mechanism 11, the longitudinal axis drive mechanism 12 and the vertical drive mechanism 14 all serve as execution units of the control system. The horizontal axis drive mechanism 11, the longitudinal axis drive mechanism 12 and the vertical drive mechanism 14 can adopt execution modules, electric push rods, etc. The horizontal axis drive mechanism 11, the longitudinal axis drive mechanism 12 and the vertical drive mechanism 14 can also adopt the screw drive in the existing technology.

[0023] The specific working process is as follows: The position of the welding wire head is identified by the identification mechanism 4, and the identification signal of the identification mechanism is then sent to the control system. After the control system processes and analyzes the signal, it controls the operation of the horizontal axis drive mechanism 11 and the vertical axis drive mechanism 12 according to the current position of the welding wire head, so that the wire feeder 1 moves in both the horizontal and vertical directions. After the wire feeder 1 moves or while it moves, the identification mechanism 4 checks the position of the welding wire head to ensure that the position of the welding wire head remains in a fixed range before each welding. After the welding wire head moves, when wire feeding is required, the wire feeding motor 7 operates to drive the wire feed roller 6 to rotate, thereby pulling the welding wire on the wire storage roller 2 from the wire outlet nozzle 3 to the welding point. After the movement is completed, the vertical drive mechanism 14 pulls the wire feeder 1 downward to ensure that the welding wire contacts the welding point.

[0024] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A wire feeding device with a positioning function, comprising a wire feeding frame (1), a wire storage roller (2) being rotatably provided on the wire feeding frame (1), a wire outlet nozzle (3) being provided on one side of the wire storage roller (2) on the wire feeding frame (1), a wire feeding mechanism being provided between the wire storage roller (2) and the wire outlet nozzle (3), and characterized in that: The wire outlet side of the wire outlet nozzle (3) is provided with an identification mechanism (4) for identifying the position of the welding wire head, and the control system controls the operation of the wire feeding mechanism after processing the identification signal of the identification mechanism (4); the wire feeding frame (1) moves in both the horizontal and vertical directions under the control of the control system.

2. A wire feeding device with positioning function according to claim 1, characterized in that: A control plate (5) is provided opposite to the identification mechanism (4).

3. The wire feeding device with positioning function according to claim 1, characterized in that: The wire feeding mechanism comprises wire feeding rollers (6) arranged opposite to each other, and at least one wire feeding roller (6) is transmission-connected to a wire feeding motor (7).

4. A wire feeding device with positioning function according to claim 3, characterized in that: One wire feeding roller (6) is in transmission connection with a wire feeding motor (7), and the other wire feeding roller (6) is arranged on a swing rod (8), and the swing rod (8) is hinged to the wire feeding frame (1).

5. The wire feeding device with positioning function according to claim 1, characterized in that: The wire feeding frame (1) is mounted on a transverse axis frame (9), the lower end of the transverse axis frame (9) is slidably engaged with a transverse axis guide rail at the upper end of the longitudinal axis frame (10), and the longitudinal axis frame (10) is provided with a transverse axis driving mechanism (11) for driving the transverse axis frame (9) to slide; the longitudinal axis frame (10) slides on the longitudinal axis guide rail (13) under the action of the longitudinal axis driving mechanism (12), and the transverse axis guide rail and the longitudinal axis guide rail (13) intersect vertically on a vertical projection plane.

6. The wire feeding device with positioning function according to claim 5, characterized in that: The wire feeding frame (1) moves vertically under the drive of a vertical driving mechanism (14), and the vertical driving mechanism (14) is mounted on the horizontal axis frame (9).

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