Automatic flame brazing machine

Abstract

The utility model discloses an automatic flame brazing machine, relates to the technical field of copper pipe welding equipment, and aims to solve the problems that the welding precision cannot be guaranteed and the efficiency is low under the long-time working condition of a manual welding method. Comprising a rack and a clamping tool, a base is further arranged in the rack, a mechanical arm is arranged on the base, the free end of the mechanical arm is connected with a mounting plate, the mounting plate is slidably connected with a wire feeding assembly, and the wire feeding assembly is driven by a telescopic air cylinder to move in the X-axis direction; the mechanical arm is arranged on the base, the wire feeding assembly and the fire spraying assembly are arranged at the free end of the mechanical arm, the two assemblies cooperate through the control box, manual operation of workers is replaced, and the working efficiency is improved while the welding precision is guaranteed; the rack is further provided with a flaming assembly corresponding to the wire feeding assembly in position, and the flaming assembly heats welding wires conveyed by the wire feeding assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of copper pipe welding equipment, and in particular to an automatic flame brazing machine. Background Technology

[0002] When copper pipes are processed into tees or crosses, they need to be welded together. Most existing welding methods are manual. Workers first fix the copper pipes, then manually feed the wire and weld them. Although this can meet the processing requirements, it requires a high level of skill from the workers, and the welding accuracy cannot be guaranteed. Moreover, it increases the labor intensity of the workers and is inefficient when working for long periods of time.

[0003] Therefore, this application provides an automatic flame brazing machine to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide an automatic flame brazing machine, which aims to solve the problems of low welding accuracy and low efficiency of manual welding methods under long working conditions.

[0005] To achieve the above objectives, this application provides the following technical solution: an automatic flame brazing machine, comprising a frame and clamping fixtures, wherein multiple sets of clamping fixtures are provided on the frame, and copper tubes to be welded are clamped on the clamping fixtures, and a control box is also provided inside the frame, wherein the control box controls the opening and closing of electrical components;

[0006] The frame also includes a base, on which a robotic arm is mounted. The free end of the robotic arm is connected to a mounting plate, and a wire feeding assembly is slidably connected to the mounting plate. The wire feeding assembly moves in the X-axis direction under the drive of a telescopic cylinder. By setting a robotic arm on the base and installing a wire feeding assembly and a flame-spraying assembly at the free end of the robotic arm, and by using a control box to enable the two sets of components to cooperate, manual operation by the operator is replaced, ensuring welding accuracy while improving work efficiency.

[0007] The frame is also equipped with a flame-spraying component corresponding to the position of the wire feeding component, which heats the welding wire fed by the wire feeding component.

[0008] Preferably, the wire feeding assembly includes a wire feeding frame and a winding roller. The winding roller is rotatably connected to the base. The wire feeding frame is installed below the mounting plate. The wire feeding frame is connected to a wire feeding nozzle via a wire feeding rod. The wire feeding frame is also equipped with a wire feeding motor, which feeds the welding wire on the winding roller to the wire feeding nozzle.

[0009] Preferably, a rotating shaft is rotatably connected to the wire feeding frame, the wire feeding rod is mounted on the rotating shaft, and a flipping motor that drives the rotating shaft to rotate on the wire feeding frame is provided on the wire feeding frame. Multiple assembly clamps are set on the frame, allowing workers to pre-fix the copper tubes to be welded before welding, thus improving work efficiency.

[0010] Preferably, the flame-spraying assembly includes a flame nozzle and a lifting base. The lifting base is slidably connected to the mounting plate via a guide post. Driven by a transmission mechanism, the lifting base moves in the Z-axis direction. A mounting rod is also slidably connected to the lifting base. The flame nozzle is connected to the mounting rod via a feeding rod. Driven by a swing motor, the mounting rod slides in the Y-axis direction.

[0011] Preferably, the transmission mechanism includes a sprocket assembly and a lead screw. The lead screw is rotatably connected to the mounting plate. The lifting seat has a threaded hole that meshes with the lead screw. The mounting plate is also equipped with an adjustment motor. The output end of the adjustment motor is connected to the lead screw through the sprocket assembly. Driven by the swing motor, the swing motor drives the mounting rod to swing along the Y-axis on the lifting seat through the cam, thereby driving the flame nozzle to swing. This prevents the flame nozzle from continuously heating the welding wire in the same place, causing the welding wire to melt before welding.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] In this invention, a robotic arm is mounted on a base, and a wire feeding assembly and a flame-spraying assembly are mounted on the free end of the robotic arm. Through a control box, the two sets of components work together to replace manual operation by workers, ensuring welding accuracy while improving work efficiency.

[0014] In this invention, multiple assembly clamps are set on the frame, allowing workers to pre-fix the copper pipes to be welded before welding, thus improving work efficiency. Driven by a swing motor, the swing motor drives the mounting rod to swing along the Y-axis on the lifting seat via a cam, thereby causing the flame nozzle to swing, preventing the flame nozzle from continuously heating the welding wire in the same place, which would cause the welding wire to melt before welding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0018] Figure 3 This is a partial structural diagram of the present invention. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the installation structure of the wire feeding assembly and the flame-throwing assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the wire feeding assembly structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the flame-throwing component structure of this utility model.

[0022] In the diagram: 1. Frame; 2. Clamping fixture; 3. Base; 4. Robotic arm; 5. Wire feeding assembly; 6. Flame-emitting assembly; 7. Mounting plate; 8. Control box;

[0023] 51. Thread feed nozzle; 52. Rotary shaft; 53. Tilting motor; 54. Thread feed motor; 55. Thread feed screw; 56. Telescopic cylinder; 57. Thread feed frame;

[0024] 61. Flame nozzle; 62. Feeding rod; 63. Swing motor; 64. Lifting seat; 65. Guide column; 66. Mounting rod; 67. Adjusting motor; 68. Transmission mechanism; 69. Lead screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Reference Figure 1-6 An automatic flame brazing machine is shown, including a frame 1 and a clamping fixture 2. The frame 1 is provided with multiple sets of clamping fixtures 2, and copper tubes to be welded are clamped on the clamping fixtures 2. The frame 1 is also provided with a control box 8, which controls the opening and closing of electrical components.

[0027] The frame 1 is also provided with a base 3, and a robotic arm 4 is provided on the base 3. The free end of the robotic arm 4 is connected to a mounting plate 7. A wire feeding assembly 5 is slidably connected to the mounting plate 7. The wire feeding assembly 5 moves in the X-axis direction under the drive of the telescopic cylinder 56.

[0028] like Figure 4 and Figure 5 As shown, the wire feeding assembly 5 feeds the welding wire to the wire feeding nozzle 51 for welding between copper tubes. The wire feeding assembly 5 includes a wire feeding frame 57 and a wire winding roller. The wire winding roller is rotatably connected to the base 3. The wire feeding frame 57 is installed below the mounting plate 7. The wire feeding frame 57 is connected to the wire feeding nozzle 51 through a wire feeding rod 55. The wire feeding frame 57 is also equipped with a wire feeding motor 54, which feeds the welding wire on the wire winding roller to the wire feeding nozzle 51.

[0029] A rotating shaft 52 is rotatably connected to the wire feeding frame 57. The wire feeding rod 55 is mounted on the rotating shaft 52. The wire feeding frame 57 is equipped with a flip motor 53 that drives the rotating shaft 52 to rotate on the wire feeding frame 57. The flip motor 53 can drive the wire feeding nozzle 51 to rotate with the rotating shaft 52 and adjust the position of the wire feeding nozzle 51.

[0030] like Figure 4 and Figure 6 As shown, the flame-spraying assembly 6 works in conjunction with the wire feeding assembly 5 to heat the welding wire so that it is in a molten state when welding the copper tube; the frame 1 is also provided with a flame-spraying assembly 6 corresponding to the position of the wire feeding assembly 5, and the flame-spraying assembly 6 heats the welding wire fed by the wire feeding assembly 5.

[0031] The flame-spraying assembly 6 includes a flame nozzle 61 and a lifting base 64. The lifting base 64 is slidably connected to the mounting plate 7 via a guide post 65. Driven by a transmission mechanism 68, the lifting base 64 moves in the Z-axis direction. A mounting rod 66 is also slidably connected to the lifting base 64. The flame nozzle 61 is connected to the mounting rod 66 via a feeding rod 62. Driven by a swing motor 63, the mounting rod 66 slides in the Y-axis direction.

[0032] The transmission mechanism 68 includes a sprocket assembly and a lead screw 69. The lead screw 69 is rotatably connected to the mounting plate 7. The lifting seat 64 has a threaded hole that meshes with the lead screw 69. The mounting plate 7 is also equipped with an adjustment motor 67. The output end of the adjustment motor 67 is connected to the lead screw 69 through the sprocket assembly.

[0033] The working principle of this utility model is as follows: When in use, the equipment is connected to power, and the operator installs the copper pipe to be welded on the frame 1 through the clamping fixture 2. Through the control box 8, the feeding rod 62 is controlled to provide fuel to the nozzle 61 and ignite the nozzle 61, so that the nozzle 61 spews out flames. The wire feeding motor 54 in the wire feeding assembly 5 is controlled to work, and the welding wire on the winding roller is fed to the wire feeding nozzle 51 through the wire feeding rod 55. The swing motor 63 is controlled to work, and the mounting rod 66 is driven by the cam to swing along the lifting seat 64 in the Y-axis direction to prevent the high temperature flames spewed from the nozzle 61 from cutting off the welding wire. The adjustment motor 67 is controlled to work, and the lifting seat 64 is moved in the Z-axis direction through the transmission mechanism 68 and the lead screw 69 to adjust the height of the nozzle 61.

[0034] When the telescopic cylinder 56 is in operation, it can drive the wire feeder 57 to move along the X-axis on the mounting plate 7. When the flip motor 53 is in operation, it drives the rotating shaft 52 to rotate on the wire feeder 57, so that the wire feed nozzle 51 and the wire feed rod 55 rotate with the rotating shaft 52, thereby adjusting the position relationship of the wire feed nozzle 51 and achieving welding of different parts of the copper tube.

[0035] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0036] Components not described in detail in this article are existing technologies.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic flame brazing machine, comprising a rack (1) and a clamping tool (2), a plurality of sets of the clamping tool (2) are arranged on the rack (1), the clamping tool (2) clamps a copper pipe to be welded, and a control box (8) is further arranged in the rack (1), the control box (8) controls the opening and closing of electrical devices; characterized in that A base (3) is further arranged in the rack (1), a mechanical arm (4) is arranged on the base (3), a mounting plate (7) is connected to the free end of the mechanical arm (4), a wire feeding assembly (5) is slidably connected to the mounting plate (7), and the wire feeding assembly (5) moves in the X-axis direction under the drive of a telescopic cylinder (56); A flame spraying assembly (6) corresponding to the position of the wire feeding assembly (5) is further arranged on the rack (1), and the flame spraying assembly (6) heats the welding wire fed by the wire feeding assembly (5).

2. An automatic flame brazing machine according to claim 1, characterized in that: The wire feeding assembly (5) comprises a wire feeding frame (57) and a wire winding roller, the wire winding roller is rotatably connected to the base (3), the wire feeding frame (57) is installed below the mounting plate (7), the wire feeding frame (57) is connected with a wire feeding nozzle (51) through a wire feeding rod (55), and a wire feeding motor (54) is further arranged on the wire feeding frame (57), which feeds the welding wire on the wire winding roller to the wire feeding nozzle (51).

3. An automatic flame brazing machine according to claim 2, characterized in that: A rotating shaft (52) is rotatably connected to the wire feeding frame (57), the wire feeding rod (55) is installed on the rotating shaft (52), and a turnover motor (53) is arranged on the wire feeding frame (57) to drive the rotating shaft (52) to rotate on the wire feeding frame (57).

4. An automatic flame brazing machine according to claim 1, characterized in that: The flame spraying assembly (6) comprises a flame spraying nozzle (61) and a lifting seat (64), the lifting seat (64) is slidably connected to the mounting plate (7) through a guide column (65), and the lifting seat (64) moves in the Z-axis direction under the drive of a transmission mechanism (68); an installation rod (66) is further slidably connected to the lifting seat (64), the flame spraying nozzle (61) is connected to the installation rod (66) through a feeding rod (62), and the installation rod (66) slides in the Y-axis direction under the drive of a swing motor (63).

5. An automatic flame brazing machine according to claim 4, characterized in that: The transmission mechanism (68) comprises a chain wheel set and a lead screw (69), the lead screw (69) is rotatably connected to the mounting plate (7), a threaded hole is formed in the lifting seat (64) and engaged with the lead screw (69), and an adjustment motor (67) is further arranged on the mounting plate (7), and the output end of the adjustment motor (67) is connected with the lead screw (69) through the chain wheel set.

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