Helium inspection line speed and welding point correlation device and correlation method

Abstract

The present application relates to a device and method for associating helium detection line speed with weld points. The device includes a line body, a controller, and an electric control box. The line body and the controller are electrically connected to the electric control box, and the controller is electrically connected to the line body motor; the device also includes a human-machine interaction component, a motor speed sensor, and a welding detection sensor; the human-machine interaction component is electrically connected to the controller; the motor speed sensor is installed at the line body motor shaft, and the motor speed sensor is electrically connected to the controller; a welding detection sensor for detecting the welding gun is installed at each welding position on the line body, and the welding detection sensor is electrically connected to the controller; the line speed of this design can be changed and the number of weld points can be specified. The line speed is associated with the weld points, which can improve the welding quality of condenser and evaporator pipeline fittings.

Description

Technical Field

[0001] The present invention relates to the technical field of helium leakage detection for air conditioners, and in particular to a device and method for correlating helium detection line speed with welding points. Background Art

[0002] The process quality of the core components of air conditioners, the condenser and evaporator, has always been the key to affecting the performance of air conditioners. In particular, helium leakage detection has always restricted the development of the industry. Therefore, the welding quality of condenser and evaporator piping is particularly important.

[0003] Air conditioners are manufactured with a specific number of weld points. However, workers often fail to weld enough or too many welds during production. Over-welding can cause blockages, while under-welding can lead to refrigerant leaks in the air conditioner piping. Air conditioners with over-welding or under-welding may result in the air conditioner piping being taken offline.

[0004] Traditional helium inspection lines do not have any speed measuring devices, and the line speed cannot be changed. Helium inspection of welds is entirely based on employees' subjective judgment, and the quality of the condenser and evaporator pipelines cannot be accurately controlled. Summary of the Invention

[0005] The purpose of the present invention is to address the above shortcomings and provide a helium detection line speed and welding point correlation device and correlation method, which correlates the line speed with the welding point to improve the welding quality of condenser and evaporator pipeline components.

[0006] To solve the above technical problems, the first aspect of the present invention provides a helium detection line speed and welding point correlation device, including a line body, a controller, and an electric control box, wherein the line body and the controller are electrically connected to the electric control box, and the controller is electrically connected to the line body motor;

[0007] It also includes human-computer interaction components, motor speed sensors, and welding detection sensors;

[0008] The human-computer interaction component is electrically connected to the controller;

[0009] The motor speed sensor is installed at the linear motor shaft, and the motor speed sensor is electrically connected to the controller;

[0010] A welding detection sensor for detecting the welding gun is installed at each welding position on the wire body, and the welding detection sensor is electrically connected to the controller.

[0011] Furthermore, the line motor is electrically connected to the controller via an emergency stop switch.

[0012] Furthermore, the human-computer interaction component is installed on the outer wall of the electric control box.

[0013] Furthermore, an alarm is installed on the line body, and the alarm is electrically connected to the controller.

[0014] To solve the above technical problems, the second aspect of the present invention provides a method for associating helium inspection line speed with weld points, using the above-mentioned device for associating helium inspection line speed with weld points, comprising the following steps:

[0015] S1: The controller obtains the set number of welding points of the corresponding product according to the product information;

[0016] S2: The controller changes the line speed to the corresponding value by adjusting the operating frequency of the line motor according to the set number of welding points;

[0017] S3: Place the product on the wire body for welding;

[0018] S4: Get the current number of welding points, current line speed, and current motor operating frequency of the wire body, and display them on the human-computer interaction component;

[0019] S5: After each welding, perform a solder joint inspection;

[0020] When the current number of weld points obtained is greater than the set number of weld points, the controller controls the line to stop and alarm;

[0021] When the product is delivered to the output end of the line, if the current number of weld points obtained is less than the set number of weld points, the controller controls the line to stop and alarm.

[0022] Furthermore, the set number of weld points is a range value. When the current number of weld points during welding is greater than the maximum value of the set number of weld points, or when the current number of weld points after welding is completed is less than the minimum value of the set number of weld points, the controller determines that the product is unqualified and controls the line to stop.

[0023] Furthermore, before step S1, a line speed upper limit needs to be set through the human-computer interaction component. When the line speed of the line exceeds the set value of the line speed upper limit, the controller controls the line to stop and alarm.

[0024] Furthermore, in step S1, the product information is obtained by installing an RFID reader at the input end of the line, and an RFID chip recording the product information is provided on the tooling plate of the line or the product. The RFID reader reads the RFID chip entering the line to obtain the product information, and the RFID reader is electrically connected to the controller.

[0025] Furthermore, in step S1, the product information is obtained by affixing a barcode on the product, installing a barcode scanner at the input end of the line, scanning the barcode to obtain the product information, and the barcode scanner is electrically connected to the controller.

[0026] Furthermore, in step S1, product information and the set number of welding points are input through the human-computer interaction component.

[0027] Furthermore, the product information includes at least production order, production model, and pipe diameter specification.

[0028] Compared with the prior art, the present invention has the following beneficial effects: the line speed can be changed and the number of welding points can be specified, the line speed is associated with the welding points, and the welding quality of the condenser and evaporator pipe parts can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described below with reference to the accompanying drawings.

[0030] Figure 1 It is a structural diagram of the device that associates the helium detection line speed with the weld point.

[0031] Figure 2 This is a schematic diagram of an implementation structure of a product information acquisition component.

[0032] Figure 3 This is another implementation structure diagram of the product information acquisition component.

[0033] In the picture:

[0034] 1-Electric control box; 2-Controller; 3-Line body; 4-Line body motor; 5-Motor speed sensor; 6-Human-machine interaction component; 7-Tooling board; 8-Product; 9-RFID chip; 10-RFID reader / writer; 11-Barcode scanner; 12-Barcode. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described in more detail below. However, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0036] Example 1:

[0037] like Figure 1-2 As shown, a helium detection line speed and welding point correlation device includes a line body 3, a controller 2, and an electric control box 1. The line body 3 and the controller 2 are electrically connected to the electric control box 1, and the controller 2 is electrically connected to the line body motor 4;

[0038] It also includes a human-machine interaction component 6, a motor speed sensor 5, and a welding detection sensor;

[0039] The human-computer interaction component 6 is electrically connected to the controller 2;

[0040] The motor speed sensor 5 is installed at the rotating shaft of the linear motor 4 to obtain the linear speed of the linear body 3. The motor speed sensor 5 is electrically connected to the controller 2. The linear speed is associated with the number of welding points. The controller 2 determines whether the linear speed meets the set requirements based on the current linear speed of the linear body 3 obtained by the motor speed sensor 5 and makes corresponding adjustments.

[0041] A welding detection sensor for detecting the welding gun is installed at each welding position on the wire body 3. The welding detection sensor is electrically connected to the controller 2. Each time welding is performed, the welding detection sensor at the corresponding welding position is triggered, and the controller 2 counts and increases the number of weld points by 1.

[0042] In this embodiment, the line motor 4 is electrically connected to the controller 2 via an emergency stop switch.

[0043] In this embodiment, the human-machine interaction component 6 is installed on the outer wall of the electric control box 1 .

[0044] In this embodiment, an alarm is installed on the line body 3, and the alarm is electrically connected to the controller 2. When the line body 3 exceeds the upper limit of the line speed, the controller 2 controls the line body 3 to stop and alarm.

[0045] In practical applications, the human-computer interaction component 6 is a touch screen.

[0046] In practical applications, the upper limit of line speed is 3 m / min.

[0047] When using:

[0048] The number of welding points and the line speed matching the number of welding points are set through the human-machine interaction component 6; the human-machine interaction component 6 displays the set number of welding points, the set line speed, the current number of welding points, the current line speed, and the frequency of the line motor 4 in real time;

[0049] The product 8 is transported and welded on the wire body 3. Each time welding occurs, the welding detection sensor at the corresponding welding position is triggered, and the controller 2 counts and increases the number of current welding points by 1. In actual applications, the welding detection sensor includes but is not limited to a photoelectric sensor, a laser sensor, and a proximity sensor.

[0050] If the current number of weld points obtained during welding is greater than the set number of weld points, the product 8 is unqualified, and the controller 2 controls the line 3 to stop and alarm;

[0051] If after welding is completed, when the product 8 is sent to the output end of the line body 3, the current number of weld points obtained is less than the set number of weld points, the product 8 is unqualified, and the controller 2 controls the line body 3 to stop and alarm.

[0052] In actual application, unqualified products 8 are taken away by the robot when the line is stopped, and qualified products flow into the next process.

[0053] In this way, the line speed and the number of welding points can be set in association with each other in the device. By associating the line speed with the welding points, the welding quality of the condenser and evaporator pipe parts can be improved.

[0054] This device solves the problem of the inability to accurately measure the helium inspection line speed and the problem of uncontrollable line speed modifications by employees at will. It can achieve precise control of the helium inspection welding points of the two air conditioners and improve product quality.

[0055] Example 2:

[0056] Example 2 provides a method for associating helium detection line speed with weld points, which adopts the device for associating helium detection line speed with weld points in Example 1.

[0057] The specific steps include:

[0058] S1: Controller 2 obtains the set number of welding points corresponding to product 8 according to product information;

[0059] The controller 2 is preset with different set numbers of solder joints for different products 8. At the same time, the controller 2 is preset with different line speeds to match the different set numbers of solder joints.

[0060] S2: The controller 2 changes the line speed of the line 3 to the corresponding value by adjusting the operating frequency of the line motor 4 according to the set number of welding points;

[0061] S3: placing the product 8 on the wire body 3 for welding;

[0062] S4: Obtain the current number of welding points, current line speed, and current motor operating frequency of the wire body 3, and display them on the human-computer interaction component 6;

[0063] S5: After each welding, a welding point detection is performed; each time welding occurs, the welding detection sensor at the corresponding welding position is triggered, and the controller 2 counts, so that the welding point count is increased by 1;

[0064] When the current number of weld points obtained is greater than the set number of weld points, the controller 2 controls the line 3 to stop and alarm;

[0065] When the product 8 is delivered to the output end of the line body 3 and the current number of weld points obtained is less than the set number of weld points, the controller 2 controls the line body 3 to stop and alarm.

[0066] In this embodiment, the set number of weld points is a range value. When the current number of weld points during the welding process is greater than the maximum value of the set number of weld points, or when the current number of weld points after welding is completed is less than the minimum value of the set number of weld points, the controller 2 determines that the product 8 is unqualified and controls the line 3 to stop.

[0067] In actual application, unqualified products 8 are taken away by the robot when the line is stopped, and qualified products flow into the next process.

[0068] In this embodiment, before step S1, the line speed upper limit needs to be set through the human-computer interaction component 6. When the line speed of the line body 3 exceeds the set value of the line speed upper limit, the controller 2 controls the line body 3 to stop and alarm.

[0069] In this embodiment, the product information includes at least the production order, production machine model, and pipe diameter specifications, and may also include peripheral information such as manufacturer source and production period.

[0070] In this embodiment, in step S1 , product information and the set number of welding points are input through the human-computer interaction component 6 .

[0071] Example 3:

[0072] like Figure 2 As shown, Example 3 adds a product information acquisition component on the basis of Example 2, providing a second method for acquiring product information.

[0073] In this embodiment, the product information acquisition component includes an RFID chip 9 and an RFID reader 10 .

[0074] In this embodiment, the method for obtaining product information is that an RFID reader 10 is installed at the input end of the line body 3, and an RFID chip 9 recording product information is provided on the tooling plate 7 or product 8 of the line body 3. The RFID reader 10 reads the RFID chip 9 entering the line body 3 to obtain product information, and the RFID reader 10 is electrically connected to the controller 2.

[0075] Example 4:

[0076] like Figure 3 As shown, Example 4 adds another product information acquisition component on the basis of Example 2, providing a third method for acquiring product information.

[0077] In this embodiment, the product information acquisition component includes a barcode 12 and a barcode scanner 11 .

[0078] In this embodiment, the product information is obtained by pasting a barcode 12 on the product 8, installing a barcode scanner 11 at the input end of the line 3, scanning the barcode 12 to obtain the product information, and the barcode scanner 11 is electrically connected to the controller 2.

[0079] Example 5:

[0080] Example 5, based on Example 1, provides a helium line detector, which includes the above-mentioned helium line speed and welding point correlation device.

[0081] Unless otherwise specifically stated, the relative arrangement, numerical expression and numerical value of the parts and steps set forth in these embodiments do not limit the scope of the application. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as restriction. Therefore, other examples of exemplary embodiments can have different values. It should be noted that: similar reference numerals and letter representations are similar, therefore, once a certain is defined, then in subsequently, it does not need to be further discussed.

[0082] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0083] For ease of description, spatially relative terms such as "on...", "above...", "on the upper surface of...", "upper", etc. may be used herein to describe the spatial positional relationships of features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the described orientation.

[0084] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0085] If this application discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integrated casting process) (except where it is obviously impossible to use the integrated forming process).

[0086] The preferred embodiments listed above further illustrate the objectives, technical solutions and advantages of the present invention in detail. It should be understood that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for associating helium inspection line speed with solder joints, using a device for associating helium inspection line speed with solder joints, characterized in that: The helium detection line speed and welding point association device includes a line body, a controller, and an electric control box. The line body and the controller are electrically connected to the electric control box, and the controller is electrically connected to the line body motor. Its characteristics are: It also includes human-computer interaction components, motor speed sensors, and welding detection sensors; The human-computer interaction component is electrically connected to the controller; The motor speed sensor is installed at the linear motor shaft, and the motor speed sensor is electrically connected to the controller; A welding detection sensor for detecting the welding gun is installed at each welding position on the wire body, and the welding detection sensor is electrically connected to the controller. The following steps are involved: S1: The controller obtains the set number of welding points of the corresponding product according to the product information; S2: The controller changes the line speed to the corresponding value by adjusting the operating frequency of the line motor according to the set number of welding points; S3: Place the product on the wire body for welding; S4: Get the current number of welding points, current line speed, and current motor operating frequency of the wire body, and display them on the human-computer interaction component; S5: After each welding, perform a solder joint inspection; When the current number of weld points obtained is greater than the set number of weld points, the controller controls the line to stop and alarm; When the product is delivered to the output end of the line, if the current number of weld points obtained is less than the set number of weld points, the controller controls the line to stop and alarm.

2. The method for associating helium inspection line speed with solder joints according to claim 1, characterized in that: The set number of weld points is a range value. When the current number of weld points during welding is greater than the maximum value of the set number of weld points, or when the current number of weld points after welding is completed is less than the minimum value of the set number of weld points, the controller determines that the product is unqualified and controls the line to stop.

3. The method for associating helium inspection line speed with solder joints according to claim 2, wherein: Before step S1, the line speed upper limit needs to be set through the human-computer interaction component. When the line speed of the line exceeds the set value of the line speed upper limit, the controller controls the line to stop and alarm.

4. The method for associating helium inspection line speed with solder joints according to claim 3, characterized in that: In step S1, the product information is obtained by installing an RFID reader at the input end of the line, and an RFID chip recording product information is set on the tooling plate of the line or the product. The RFID reader reads the RFID chip entering the line to obtain product information, and the RFID reader is electrically connected to the controller; Alternatively, in step S1, the product information is obtained by attaching a barcode to the product, installing a barcode scanner at the input end of the line, scanning the barcode to obtain the product information, and the barcode scanner is electrically connected to the controller.

5. The method for associating helium inspection line speed with solder joints according to claim 4, characterized in that: In step S1, product information and the number of set welding points are input through the human-computer interaction component.

6. The method for associating helium inspection line speed with solder joints according to claim 4, characterized in that: The product information includes at least the production order, production machine model, and pipe diameter specifications.

7. The method for associating helium inspection line speed with solder joints according to claim 1, wherein: The line motor is electrically connected to the controller via an emergency stop switch.

8. The method for associating helium inspection line speed with solder joints according to claim 1, wherein: The human-machine interaction component is installed on the outer wall of the electric control box.

9. The method for associating helium inspection line speed with solder joints according to claim 1, wherein: An alarm is installed on the line body, and the alarm is electrically connected to the controller.

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