Feeding device of welding equipment, welding equipment and selective wave soldering equipment

Abstract

The utility model provides a welding equipment feeding device, welding equipment and selective wave soldering equipment, and belongs to the technical field of welding, the welding equipment feeding device comprises an alignment light source, a circuit board placing part and a welding operation part which are arranged from top to bottom; the circuit board placing part is provided with a circuit board bearing area; the alignment light source emits calibration light; and alignment light source calibration light is emitted to the circuit board bearing area, an operation calibration mark is formed in the circuit board bearing area, and the operation calibration mark corresponds to the position of a welding operation component. An alignment light source, a circuit board placing part and a welding operation part calibration mark are arranged in the device from top to bottom and correspond to the position of a welding operation part. After the circuit board is placed, although a welding operation part is shielded, an operator only needs to check whether the calibration mark is matched with the to-be-aligned position of the circuit board from the front, alignment can be completed, and the observation process is not interfered by other parts.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, and more specifically, relates to a welding equipment loading device, welding equipment, and selective wave soldering welding equipment. Background Technology

[0002] With the high precision requirements of circuit board manufacturing, automated soldering, as a core process, is becoming increasingly important. As electronic components become more refined and miniaturized, and the wiring density of circuit boards increases significantly, more stringent requirements are being placed on the precision control of the soldering process. Of particular note is that precise positioning before the soldering process begins has become a key factor affecting production efficiency and product quality.

[0003] Currently, the industry's commonly used manual alignment method has significant technical shortcomings in practice. On one hand, human factors such as differences in vision and misjudgment inevitably interfere with positioning accuracy, leading to positioning deviations. On the other hand, since electronic components are already inserted into the circuit board before soldering, the component pins need to be dipped into the back of the board using methods such as wave soldering. Therefore, the circuit board cannot be reversed and must be placed face up. If selective wave soldering with point soldering is used, the solder nozzle outputting the solder liquid must be aligned with the component pins. However, when checking alignment, operators usually observe from a low position upwards, which is extremely inconvenient. Furthermore, the complexity of the equipment structure often obstructs the line of sight, increasing the difficulty of alignment. Even more complex is that, to ensure accurate alignment, the circuit board needs to be as close as possible to the output port of the working component. This operation not only increases the risk of misoperation but also, due to limitations of some plug-in pins or the structure of already installed components, makes it difficult to achieve the ideal level of proximity.

[0004] The above problems urgently need to be addressed. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a welding equipment loading device, welding equipment, and selective wave soldering equipment, thereby resolving the issues of difficult observation and low alignment accuracy in the prior art.

[0006] To achieve the above objectives, this utility model is accomplished by the following specific technical means:

[0007] The welding equipment loading device includes, from top to bottom, an alignment light source, a circuit board placement section, and welding operation components; the circuit board placement section has a circuit board support area; the alignment light source emits calibration light; the calibration light from the alignment light source is directed toward the circuit board support area and forms an operation calibration mark in the circuit board support area, and the operation calibration mark corresponds to the position of the welding operation components.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The alignment light source, the circuit board placing part and the welding operation part are arranged from top to bottom, and the operation calibration mark of the alignment light source corresponds to the position of the welding operation part. Even if the circuit board is placed in the circuit board receiving area and the welding operation part is blocked, the operator only needs to observe whether the position of the operation calibration mark matches the position required for the alignment of the circuit board to complete the alignment process. The observation alignment process is not affected by the remaining parts of the equipment, and the alignment work can be completed by only observing the front. The circuit board receiving area can be stopped at any height and is not affected by the distance between the circuit board and the operation part, which has the advantages of high precision and convenient observation.

[0010] Further, the welding operation part is a welding part or a spraying part. The feeding device is suitable for a device that only completes the welding process, a device that only completes the flux spraying process, or a device that simultaneously completes the above two processes.

[0011] Further, the welding operation part is provided with an operation output port, and the operation calibration mark corresponds to the position of the operation output port, making the alignment more direct and accurate.

[0012] Further, in order to avoid damage to the operation output port during the placement of the circuit board, the welding operation part is provided with an operation output port pre-alignment mechanism, and the operation calibration mark corresponds to the position of the operation output port pre-alignment mechanism.

[0013] The alignment light source has the following two arrangement methods:

[0014] The first method is that the alignment light source is a single-point light source, and its irradiation direction is vertically towards the welding operation part, which has simple structure and high stability.

[0015] The second arrangement method is that the alignment light source is provided with two or more than two, and emits linear light; the linear light emitted by each alignment light source intersects at the circuit board receiving area, and the intersection point is the operation calibration mark. This method does not need to be arranged directly above the welding operation part, and has wider position selection, which provides more favorable space for manual operation, maintenance and connection between the feeding device and other equipment.

[0016] Further, the circuit board placing part can move in the vertical direction to a certain extent according to the requirements of the structure of the circuit board itself, the structure of the front plug-in pin of the circuit board, and the height of the protruding element installed on the bottom surface.

[0017] The path of the vertical movement is parallel to the line connecting the alignment light source and the welding operation part, which effectively avoids the alignment error caused by the movement of the circuit board placing part.

[0018] The utility model also provides a kind of welding equipment, including welding device, clamping device and alignment light source;

[0019] The welding device is a welding operation component;The clamping device is provided with a circuit board placing portion, which receives the circuit board to complete feeding and drives the circuit board to move above the welding device to complete the operation;The alignment light source is arranged above the clamping device, and when the clamping device runs to the feeding position, the alignment light source forms an operation calibration mark with the circuit board placing portion;The operation calibration mark corresponds to the output position of the welding device.

[0020] The utility model also provides a kind of selective wave-soldering welding equipment, including first operation component, second operation component, clamping device and alignment light source;The first operation component is flux spraying device, the second operation component is welding device, the clamping device is provided with circuit board placing portion, receives circuit board and completes feeding, and drives circuit board to move to the top of flux spraying device and welding device to complete operation;The alignment light source is arranged above the clamping device, and when the clamping device runs to the feeding position, the alignment light source forms an operation calibration mark with the circuit board placing portion;The operation calibration mark corresponds to the output position of the flux spraying device.

[0021] Further, the clamping device is provided with two or more than two. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides a kind of welding equipment feeding device structural schematic diagram for embodiment one;

[0023] Figure 2 The utility model provides a kind of welding equipment structural schematic diagram for embodiment two;

[0024] Figure 3 The utility model provides a kind of selective wave-soldering welding equipment structural schematic diagram for embodiment three.

[0025] In the drawing, the corresponding relationship between component name and drawing number is as follows:

[0026] 11, alignment light source;12, circuit board placing portion;13, welding operation component;14, circuit board receiving area;21, flux spraying device. DETAILED DESCRIPTION

[0027] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0028] Embodiment one:

[0029] As Figure 1As shown, the utility model provides welding equipment feeding device, this device adopts from top to bottom layout, is equipped with alignment light source 11, circuit board placing part 12 and welding operation part 13 in turn, and each part works in coordination, completes circuit board feeding and starts alignment process before welding. Among them, circuit board placing part 12 specially sets up circuit board bearing area 14, and this is the key area of bearing circuit board. And alignment light source 11 can emit calibration light, and this light is shot at circuit board bearing area 14, and then forms operation calibration mark in the area. There is a corresponding relationship between operation calibration mark and the position of welding operation part 13. For example, when welding operation part 13 is welding part, the position indicated by operation calibration mark is the starting work position of welding process, and if it is spraying part, the position indicated by operation calibration mark is the starting work position of flux spraying process. The above actual work position is not limited to the starting point of operation part construction, and can be any position point on the circuit board to be machined, such as pin hole or mark point, which is convenient to observe and convenient to remember. Whether the landing point of operation calibration mark is consistent with the position point can judge whether the circuit board placing position is accurate. Moreover, welding operation part 13 is equipped with operation output, and the position thereof corresponds to operation calibration mark, so that when welding or spraying operation is carried out, the output can be directly positioned according to the mark, and the accuracy of operation is ensured.

[0030] As a preferred mode (not shown in the figure): in order to avoid the damage of operation output caused by error operation during circuit board placing process, operation output pre-alignment mechanism is further provided, and the position of the mechanism also corresponds to operation calibration mark, which further improves the safety and reliability of operation. After alignment, the pre-alignment mechanism retreats from the alignment position, and the operation output runs to the alignment position.

[0031] There are two ways to set the alignment light source 11. One is to use a single-point light source, which emits light vertically towards the welding workpiece 13. This structure is relatively simple and stable, and is widely used in some welding scenes that do not have special requirements for space and precision. The second is to set two or more alignment light sources 11, which can emit linear light. These linear lights intersect at the circuit board placement area 14, and the intersection point is the work calibration mark. The advantage of this method is that the alignment light source 11 does not need to be limited to the top of the welding workpiece, and its position selection is more flexible, which not only provides convenience for manual operation, but also creates more favorable space conditions for equipment maintenance and the connection between the feeding device and other equipment. At the same time, the circuit board placement part 12 can move vertically, so that it can adjust the position according to different precision requirements to adapt to various welding work requirements. As an optimal way when there are two or more alignment light sources, the alignment light source has a driving structure that moves up and down, so that the calibration mark can adjust the position according to the placement of the circuit board. As an optimal way, the circuit board placement area 14 is a hollow structure. When it is necessary to check whether the calibration position of the alignment light source is accurate, only need to observe the work calibration mark under the condition that the circuit board placement part is empty, whether it falls at the workpiece output port.

[0032] Example two:

[0033] As shown in Figure 2 , a welding equipment installed with the above feeding device, which mainly consists of three core parts: welding device, clamping device and alignment light source 11. Among them, the welding device is used for the main welding task, and the clamping device plays an important role in connecting the two. It is internally provided with a special circuit board placement part 12. In the initial stage of the whole welding process, the clamping device uses the circuit board placement part 12 to accept the circuit board and complete the feeding operation. Then, it can drive the circuit board to move smoothly above the welding device, so that the circuit board can receive welding work on the predetermined track and position, ensuring the accuracy and consistency of welding.

[0034] The alignment light source 11 is positioned above the clamping device. When the clamping device moves to the loading position according to a predetermined program, the alignment light source 11 emits specific light, forming a clear work marking on the circuit board placement section 12. The work marking corresponds to the output port position of the welding device. Through this correspondence, operators can quickly complete the alignment process during the initial preparation stage by observing the matching between the work marking and the preset initial alignment on the circuit board. This improves welding accuracy, reduces welding defects caused by alignment deviations, and enhances the ease of observation throughout the welding process. Operators do not need complex operations or multi-angle observations; alignment confirmation can be completed simply from the front, effectively improving work efficiency and reducing operational difficulty.

[0035] Example 3:

[0036] like Figure 3 As shown, a selective wave soldering equipment equipped with the aforementioned feeding device mainly consists of a first working component, a second working component, a clamping device, and an alignment light source 11. The first working component is a flux spraying device 21, which uniformly sprays flux onto the circuit board before soldering to optimize the soldering effect and ensure the strength and reliability of the solder joint. The second working component is a soldering device that solders the components to be soldered onto the circuit board.

[0037] The clamping device is a key component for the orderly transfer and positioning of circuit boards. It features a circuit board placement section 12, which initially supports the circuit boards, facilitating the loading process. Subsequently, leveraging its driving capability, the clamping device smoothly moves the circuit boards along a preset path and program, positioning them sequentially above the flux spraying device 21 and the soldering device, thereby completing the flux spraying and soldering operations in an orderly manner.

[0038] The alignment light source 11 is positioned above the clamping device. Whenever the clamping device reaches the loading position, the alignment light source 11 emits specific light to form a clear and accurate work marking on the circuit board placement section 12. This marking corresponds to the output port position of the flux spraying device 21. By observing the match between the marking and a specific position on the circuit board, the operator can efficiently complete the initial alignment work, laying the foundation for subsequent flux spraying and welding operations. Furthermore, to further improve the equipment's efficiency and adaptability, two or more clamping devices are provided. Multiple clamping devices can work alternately. While one clamping device is loading, aligning, or operating above the workpiece, other clamping devices can simultaneously perform other tasks on the circuit board, such as completing welding processes, loading new circuit boards to be welded, and unloading already welded circuit boards. This shortens the overall welding cycle, increases equipment capacity, and meets the needs of large-scale, high-efficiency production.

[0039] The embodiments of the present application are given by way of example and illustration only, and are not intended to limit the present application to the forms disclosed. Numerous modifications and changes will occur to those skilled in the art, without departing from the spirit and principles of the present application. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application to thereby enable others skilled in the art to best utilize the present application, as well as to enable others skilled in the art to best utilize the present application in various embodiments and with various modifications as are suited to the particular use.

Claims

1. A feeding device for welding equipment, characterized in that: The components arranged from top to bottom are: alignment light source, circuit board placement section, and welding operation parts; The circuit board placement section has a circuit board holding area; the alignment light source emits calibration light; The alignment light source directs the calibration light onto the circuit board placement area and forms a work calibration mark in the circuit board placement area. The work calibration mark corresponds to the position of the welding work component.

2. The welding equipment loading device as described in claim 1, characterized in that: The welding operation component is equipped with an operation output port, and the operation calibration mark corresponds to the position of the operation output port.

3. The welding equipment loading device as described in claim 1, characterized in that: The welding operation component is equipped with a pre-alignment mechanism for the operation output port, and the operation calibration mark corresponds to the position of the pre-alignment mechanism for the operation output port.

4. The welding equipment loading device as described in claim 1, characterized in that: The welding operation component is either a welding component or a spraying component.

5. The welding equipment loading device as described in claim 1, characterized in that: The alignment light source is a single-point light source, and its illumination direction is vertically directed towards the welding workpiece.

6. The welding equipment loading device as described in claim 1, characterized in that: There are two or more alignment light sources that emit linear rays; the linear rays emitted by each alignment light source converge at the circuit board placement area, and the convergence point is the work calibration mark.

7. The welding equipment loading device as described in claim 1, characterized in that: The circuit board placement section can move vertically.

8. A welding device equipped with a feeding device as described in any one of claims 1-7, characterized in that: Includes welding equipment, clamping equipment, and alignment light source; The welding device is a welding operation component; the clamping device is provided with a circuit board placement part, which receives the circuit board to complete the loading, and drives the circuit board to move above the welding device to complete the operation; The alignment light source is positioned above the clamping device. When the clamping device moves to the loading position, the alignment light source forms a work calibration mark on the circuit board placement part. The operation calibration mark corresponds to the position of the output port of the welding device.

9. A selective wave soldering equipment equipped with a feeding device as described in any one of claims 1-7, characterized in that: It includes a first working component, a second working component, a clamping device, and a positioning light source; The first working component is a flux spraying device, and the second working component is a welding device. The clamping device is equipped with a circuit board placement section, which receives the circuit board to complete the loading, and drives the circuit board to move above the flux spraying device and the welding device to complete the operation. The alignment light source is positioned above the clamping device. When the clamping device moves to the loading position, the alignment light source and the circuit board placement part form a work calibration mark. The operation calibration mark corresponds to the output port position of the flux spraying device.

10. The selective wave soldering equipment as described in claim 9, characterized in that: The clamping device has two or more.

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