A welding process for a soundproof box

Abstract

The present invention discloses a welding process for a soundproof box, comprising the following steps: cleaning and polishing the four edges of the multiple metal plates constituting the soundproof box, and welding them together by spot welding to form a weld; a weld is formed at the connection between any two metal plates; placing the soundproof box formed in step S1 on a welding table, and fixing the welding device at the geometric center of the plane on the top of the soundproof box; starting the welding device to complete the welding of two relatively set welds, keeping the position of the welding device stationary, rotating it 90 degrees, and completing the welding of the other two welds. The two welding assemblies in the present invention can weld two welds at the same time through the drive of the first motor, and after completing the operation of the two welds in the same plane, it is also very convenient for the welding assembly to switch to the other two welds, thereby greatly improving the working efficiency of the entire welding device, and compared with traditional manual welding, the welding time can be shortened exponentially.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding process for a sound insulation box. Background Art

[0002] The soundproof box is used to detect the noise of various electronic devices. The outer layer design of the traditional soundproof box is basically an installation method of splicing metal and then fixing with screws. There are also methods of splicing metal plates by welding to form a sealed space, and then installing a test fixture in the sealed space to achieve noise detection of electronic equipment. However, when welding the soundproof box in the prior art, each edge is usually manually welded in turn by manually operating a welding tool, and the welding quality of the weld mainly depends on the operation and technology of the personnel. Therefore, there are many disadvantages in the manual welding used in the prior art. First, the welding efficiency is low, and the welds are manually welded one by one. In addition, the quality of welding cannot be fundamentally guaranteed, and the labor cost is very high. In view of this, the present invention proposes a new welding device, and forms a new welding process on this basis. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the present invention is to propose a welding process for a sound insulation box, which not only realizes the automatic welding operation of the sound insulation box and avoids the trouble of traditional manual operation, but also greatly shortens the welding time by putting two welding components into operation at the same time, while also ensuring the welding quality.

[0004] The invention proposes a welding process for a sound insulation box, comprising the following steps:

[0005] S1. Clean and polish the four edges of the multiple metal plates that make up the soundproof box, and weld them together by spot welding. A weld is formed at the connection between any two metal plates.

[0006] S2, placing the sound insulation box formed in step S1 on a welding table, and fixing the welding device at the plane geometric center of the top of the sound insulation box;

[0007] S3, start the welding device to complete the welding of two relatively arranged welds, keep the welding device in place, rotate it 90 degrees, and complete the welding of the other two welds;

[0008] S4, fix the welding device at the geometric center of the plane at the bottom of the sound insulation box, and repeat the operation of step S3 to complete the welding of the four welds at the bottom of the sound insulation box;

[0009] S5. Fix the welding device at the geometric center of the two opposite side walls of the sound insulation box in sequence, and complete the remaining welding seams through the welding device.

[0010] Preferably, the welding device comprises a chassis and welding assemblies which are rotatably arranged on both sides of the chassis through telescopic rods and move linearly along the welding seam.

[0011] Preferably, the welding assembly includes a first auxiliary welding plate and a second auxiliary welding plate which are arranged perpendicular to each other and have the same specifications, a first travel wheel is installed at the bottom of the first auxiliary welding plate, a second travel wheel is installed at the bottom of the second auxiliary welding plate, a welding base plate is connected between the first auxiliary welding plate and the second auxiliary welding plate, and the length of the welding base plate is greater than the first auxiliary welding plate or the second auxiliary welding plate, a rack is provided along the length direction of the welding base plate on the side facing the weld, and limiting baffles are formed at both ends of the rack, the limiting baffle is fixedly connected to the welding base plate, a slider is slidably connected to the rack, a welding gun is installed on the end face of the slider facing the weld, a second motor is fixedly installed on the slider and on one side of the welding gun, and the motor shaft of the second motor passes through the slider and is driven by a gear meshing with the rack.

[0012] Preferably, a fixed shell is connected to the center of the chassis through a support column, the interior of the fixed shell is hollow, and two arc-shaped notches are formed on the circumferential surface of the fixed shell, a turntable is rotatably connected to the interior of the fixed shell, a first motor is installed on the top of the fixed shell, and the output end of the first motor extends downward to the interior of the fixed shell and is fixedly connected to the center of the turntable.

[0013] Preferably, the fixed end of the telescopic rod is fixed on the circumferential surface of the turntable after passing through the arc-shaped notch, a hinge seat is installed on the top of the first auxiliary welding plate adjacent to the side edge of the fixed shell, the movable end of the telescopic rod is connected to the hinge seat, and a spring is connected between the fixed end of the telescopic rod and the hinge seat.

[0014] Preferably, four laser collimators are distributed in a rectangular shape on the circumferential surface of the chassis. In steps S2 and S4, when the chassis is fixed at the geometric center of the sound insulation box, the midpoint of the side of the sound insulation box is found by four or any two adjacent laser collimators.

[0015] The beneficial effects of the present invention are:

[0016] (1) The welding device of the present invention includes two welding assemblies, which can weld two welds at the same time through the drive of the first motor. After completing the operation of two welds in the same plane, it is also very convenient for the welding assemblies to switch to the other two welds, thereby greatly improving the working efficiency of the entire welding device. Compared with traditional manual welding, the welding time can be shortened exponentially.

[0017] (2) The welding assembly in the present invention is composed of two mutually perpendicular first auxiliary welding plates and second auxiliary welding plates and a welding base plate connected therebetween. The two auxiliary welding plates move on different planes respectively, while the welding base plate always remains perpendicular to the weld. When the two auxiliary welding plates move, the telescopic rod continuously retracts and contracts to cooperate with the movement of the welding assembly. The spring thereon is in a stretched state, thereby forming a pulling force on the auxiliary welding plate in the vertical direction, so that the entire welding assembly is firmly clamped at the weld. The two welding assemblies are respectively clamped on the sound insulation box, which improves the stability of the entire welding device during operation and further protects the welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the welding device in the present invention;

[0020] Figure 2 It is a structural schematic diagram of the welding assembly of the present invention;

[0021] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 This is a distribution diagram of the laser collimator on the chassis of the present invention;

[0023] Figure 5 It is a schematic diagram of the welding device of the present invention when it is in working state.

[0024] In the figure: 1. chassis; 2. support column; 3. fixed shell; 4. first motor; 5. arc-shaped notch; 6. turntable; 7. telescopic rod; 8. spring; 9. hinge seat; 10. first auxiliary welding plate; 11. welding base plate; 12. second auxiliary welding plate; 13. first running wheel; 14. second running wheel; 15. rack; 16. limit baffle; 17. slider; 18. second motor; 19. welding gun; 20. laser collimator. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] This embodiment discloses a welding process of a sound insulation box, including the following steps:

[0031] First, the four edges of the multiple metal plates that make up the soundproof box are cleaned and polished with a grinder to ensure that the edges of the metal plates to be welded are smooth, thereby ensuring the welding quality of the welds. After the edges of the metal plates are processed, all the metal plates are welded together by spot welding to form the overall structure of the soundproof box, and a weld is formed at the connection between any two metal plates;

[0032] Second, place the soundproof box formed in the above steps on a dedicated welding table, and fix the welding device in this embodiment at the geometric center of the plane on the top of the soundproof box. The welding device in this embodiment includes a chassis 1 and a welding assembly that is rotatably arranged on both sides of the chassis 1 through a telescopic rod 7 and moves along the weld line. Specifically, Figure 2 As shown, the welding assembly includes a first auxiliary welding plate 10 and a second auxiliary welding plate 12 which are arranged perpendicular to each other and have the same specifications. The first auxiliary welding plate 10 is arranged in the horizontal direction, and the second auxiliary welding plate 12 is arranged in the vertical direction. A first walking wheel 13 is installed at the bottom of the first auxiliary welding plate 10, and a second walking wheel 14 is installed at the bottom of the second auxiliary welding plate 12. A welding base plate 11 is connected between the first auxiliary welding plate 10 and the second auxiliary welding plate 12. During welding, the first auxiliary welding plate 10 walks on the top of the soundproof box, and the second auxiliary welding plate 12 walks on the side wall of the soundproof box, and the welding base plate 11 is just perpendicular to the weld. When the first auxiliary welding plate 10 or the second auxiliary welding plate 12 walks to the edge of the soundproof box, since the length of the welding base plate 11 is greater than the first auxiliary welding plate 10 or the second auxiliary welding plate 12, the welding gun 19 on the welding base plate 11 can The welding base plate 11 is provided with a rack 15 along its length direction on one side facing the welding seam, and limit baffles 16 are formed at both ends of the rack 15, and the limit baffles 16 are fixedly connected to the welding base plate 11, and a slider 17 is slidably connected to the rack 15. The welding gun 19 is fixed on the end face of the slider 17 facing the welding seam, and a second motor 18 is fixedly installed on the slider 17 and on one side of the welding gun 19. The motor shaft of the second motor 18 passes through the slider 17 and is driven to be connected to a gear meshing with the rack 15. The welding gun 19 slides along the rack 15 and is driven by the second motor 18. The second motor 18 drives the gear to rotate, and the gear meshes with the rack 15, so the slider 17 is driven to move linearly along the rack 15, and the reciprocating linear motion of the welding gun 19 is realized by the forward and reverse rotation of the second motor 18. There are four laser collimators 20 distributed in a rectangular shape on the circumferential surface of the chassis 1. When the chassis 1 is fixed at the geometric center of the sound insulation box, first find the center of each edge of the top of the sound insulation box with a tool ruler, and then start four or any two adjacent laser collimators 20 to align the light emitted by the laser collimators 20 with the midpoint of the edge. At this time, the chassis 1 is set exactly at the geometric center of the sound insulation box.

[0033] Third, the welding device in the present invention also includes a fixed shell 3 arranged at the center of the chassis 1 and fixed on the chassis 1 through a support column 2. The interior of the fixed shell 3 is in a cavity shape. Two arc-shaped notches 5 are formed on the circumferential surface of the fixed shell 3. The interior of the fixed shell 3 is rotatably connected to a turntable 6. A first motor 4 is installed on the top of the fixed shell 3. The output end of the first motor 4 extends downward to the interior of the fixed shell 3 and is fixedly connected to the center of the turntable 6. The fixed end of the telescopic rod 7 passes through the arc-shaped notch 5 and is fixed on the circumferential surface of the turntable 6. A hinge seat 9 is installed on the top of the first auxiliary welding plate 10 adjacent to one side edge of the fixed shell 3. The movable end of the telescopic rod 7 is connected to the hinge seat 9, and a spring 8 is connected between the fixed end of the telescopic rod 7 and the hinge seat 9. Start the welding device to complete the welding of the two relatively set welds, keep the position of the welding device stationary, rotate it 90 degrees, and complete the welding of the other two welds. Specifically, start the first motor 4 to drive the turntable 6 to rotate inside the fixed shell 3, and the telescopic rod 7 drives the first auxiliary welding plate 10 to form a rotation trend. However, due to the limiting effect of the second auxiliary welding plate 12, the entire welding assembly can only move linearly along the weld there. While the first auxiliary welding plate 10 moves linearly along the weld, the telescopic rod 7 continuously retracts and contracts to cooperate with the movement of the welding assembly. When the telescopic rod 7 is extended, the spring 8 thereon is in a stretched state, thereby forming a pulling force on the second auxiliary welding plate 12, so that the entire welding assembly is firmly clamped at the weld. The first motor 4 drives the turntable 6 to rotate, and the two welding assemblies move in opposite directions of the two welds to complete the welding operation on them. After the two welds are welded, the two welding assemblies return to the initial state (the midpoint of the two welds), and the two welding assemblies are stretched outward to meet their rotation to the other two welds, and then the same operation steps are used to complete the welding of the other two welds.

[0034] Fourth, turn the soundproof box upside down so that the bottom of the soundproof box faces upward, fix the welding device at the plane geometric center of the bottom of the soundproof box in the same way as above, and repeat the above operation to complete the welding of the four welds at the bottom of the soundproof box.

[0035] Fifth, after completing the above steps, the sound insulation box completes the welding of eight welds, and then the welding device is fixed in sequence at the geometric centers of the two opposite side walls of the sound insulation box, so that the welding assembly is installed at the weld on the side wall, and the first motor 4 and the second motor 18 are started at the same time, and the welding gun 19 moves on the weld here to complete the welding of the remaining welds.

[0036] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding process for a soundproof box, It is characterized in that The steps include: S1. Clean and polish the four edges of the multiple metal plates that make up the soundproof box, and weld them together by spot welding. A weld is formed at the connection between any two metal plates. S2, placing the sound insulation box formed in step S1 on a welding table, and fixing the welding device at the plane geometric center of the top of the sound insulation box; S3, start the welding device to complete the welding of two relatively arranged welds, keep the welding device in place, rotate it 90 degrees, and complete the welding of the other two welds; S4, fix the welding device at the geometric center of the plane at the bottom of the sound insulation box, and repeat the operation of step S3 to complete the welding of the four welds at the bottom of the sound insulation box; S5, sequentially fix the welding device at the geometric centers of the two opposite side walls of the sound insulation box, and complete the remaining welds by the welding device; The welding device comprises a chassis (1) and welding components which are rotatably arranged on both sides of the chassis (1) through telescopic rods (7) and move linearly along the welding seam; The welding assembly comprises a first auxiliary welding plate (10) and a second auxiliary welding plate (12) which are arranged perpendicular to each other and have the same specifications. A first travel wheel (13) is installed at the bottom of the first auxiliary welding plate (10), and a second travel wheel (14) is installed at the bottom of the second auxiliary welding plate (12). A welding base plate (11) is connected between the first auxiliary welding plate (10) and the second auxiliary welding plate (12), and the length of the welding base plate (11) is greater than that of the first auxiliary welding plate (10) or the second auxiliary welding plate (12). The side of the welding base plate (11) facing the weld A rack (15) is arranged along its length direction, and limit baffles (16) are formed at both ends of the rack (15), the limit baffles (16) are fixedly connected to the welding base plate (11), a slider (17) is slidably connected to the rack (15), a welding gun (19) is installed on the end surface of the slider (17) facing the weld, a second motor (18) is fixedly installed on the slider (17) and located on one side of the welding gun (19), and the motor shaft of the second motor (18) passes through the slider (17) and is driven and connected to a gear meshing with the rack (15); A fixed shell (3) is connected to the center of the chassis (1) via a support column (2); the interior of the fixed shell (3) is in a cavity shape, and two arc-shaped notches (5) are formed on the circumferential surface of the fixed shell (3); a turntable (6) is rotatably connected to the interior of the fixed shell (3); a first motor (4) is installed on the top of the fixed shell (3); an output end of the first motor (4) extends downward into the interior of the fixed shell (3) and is fixedly connected to the center of the turntable (6).

2. A welding process for a sound insulation box according to claim 1, It is characterized in that The fixed end of the telescopic rod (7) passes through the arc-shaped notch (5) and is fixed on the circumferential surface of the turntable (6); a hinge seat (9) is installed on the top of the first auxiliary welding plate (10) adjacent to the edge of one side of the fixed shell (3); the movable end of the telescopic rod (7) is connected to the hinge seat (9), and a spring (8) is connected between the fixed end of the telescopic rod (7) and the hinge seat (9).

3. A welding process for a soundproof box according to claim 2, It is characterized in that Four laser collimators (20) are distributed in a rectangular shape on the circumferential surface of the chassis (1). In steps S2 and S4, when the chassis (1) is fixed at the geometric center of the sound insulation box, the midpoint of the side of the sound insulation box is found by using four or any two adjacent laser collimators (20).

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