Shunt welding device and control method thereof

Abstract

The present invention discloses a diverter welding device and a control method thereof, wherein the diverter welding device includes a device body, a heating mechanism, and a pushing mechanism. A processing space is formed in the device body, and the device body is provided with a vacuum unit, which is used to vacuum the processing space, defining the device body as having a height direction; the heating mechanism is provided in the processing space, and is used to heat a first processing workpiece; the pushing mechanism is provided in the processing space and above the heating mechanism, and is used to drive the second processing workpiece toward the first processing workpiece. The technical solution of the present invention is intended to improve the practicality and reliability of the diverter welding device and further improve the production qualification rate of the diverter welding process.

Description

Technical Field

[0001] The present invention relates to the technical field of shunt welding processing, and in particular to a shunt welding device and a control method thereof. Background Art

[0002] In the existing shunt welding technology, hot air reflow soldering is mostly used to solder the alloy resistor and the integrated circuit board of the shunt. The pre-installation is carried out by adhering solder paste between the welding points of the alloy resistor and the welding points of the integrated circuit board. The pre-installed workpiece is then sent to the reflow soldering device. The heated air flow in the reflow soldering is blown onto the workpiece to melt the solder paste, so that the solder paste connects the alloy resistor and the integrated circuit board to achieve welding between the two.

[0003] However, in the existing reflow soldering technology, most of them only use hot air to melt the solder paste, and then connect the alloy resistor and the integrated circuit board after the solder paste solidifies to achieve welding of the processed workpiece. This can easily cause a large number of bubbles inside the solder paste after it melts, affecting the conduction effect of the alloy resistor and the integrated circuit board; and the integrated circuit board of the shunt usually integrates multiple components. During the welding process, the electronic components on the integrated circuit board are easily damaged by the high-temperature airflow, resulting in low welding reliability of the shunt and affecting the welding processing production qualification rate of the shunt. Summary of the Invention

[0004] The main purpose of the present invention is to provide a diverter welding device and a control method thereof, aiming to improve the practicality and reliability of the diverter welding device and further improve the production qualification rate of the diverter welding process.

[0005] To achieve the above-mentioned purpose, the diverter welding device proposed in the present invention includes a device body, a heating mechanism and a pushing mechanism. A processing space is formed in the device body, and the device body is provided with a vacuum unit. The vacuum unit is used to vacuum the processing space, defining the device body as having a height direction; the heating mechanism is arranged in the processing space, and the heating mechanism is used to heat the first processing workpiece; the pushing mechanism is arranged in the processing space and above the heating mechanism, and the pushing mechanism is used to drive the second processing workpiece to move toward the first processing workpiece.

[0006] Optionally, the device body is provided with a mounting frame, the mounting frame is arranged in the processing space, the pushing mechanism and the heating mechanism are both connected to the mounting frame and are arranged at relative intervals along the height direction.

[0007] Optionally, the mounting frame is further provided with a conveying structure, the conveying structure is used to convey the first processed workpiece and / or the second processed workpiece, and the heating mechanism is provided on a conveying path of the conveying structure.

[0008] Optionally, the heating mechanism includes a driving unit and a heating body, the driving unit is connected to the mounting frame; the heating body is connected to the driving unit, the heating body faces the surface of the pushing mechanism to heat the first processing workpiece, and the driving unit is used to drive the heating body to move up and down in the height direction.

[0009] Optionally, the device body further includes a processing table and a protective cover body, the protective cover body is connected to the processing table and encloses the processing table to form the processing space, and the mounting frame and the vacuum unit are installed on the processing table.

[0010] Optionally, the pushing mechanism is further provided with a temperature measuring structure, and the temperature measuring structure is used to measure the temperature of the first processed workpiece.

[0011] Optionally, the temperature measuring structure is a temperature measuring probe, which is retractably connected to a surface of the pushing mechanism facing the heating mechanism. The pushing mechanism is further provided with a pushing member, the length of the pushing member along the height direction being less than the length of the temperature measuring structure along the height direction, and the pushing member is used to drive the second workpiece to move toward the first workpiece.

[0012] Optionally, the diverter welding device also includes a welding fixture, which is provided with a heat-conducting layer, the heat-conducting layer abuts against the heating mechanism, and the surface of the heat-conducting layer facing away from the heating mechanism is used to support and fix at least one first processing workpiece and to conduct heat to the first processing workpiece.

[0013] Optionally, the welding fixture further comprises a thermal insulation layer, which is connected to the surface of the heat-conducting layer facing away from the heating mechanism and, together with the heat-conducting layer, forms at least one receiving groove, with the heat-conducting layer forming the bottom wall of the receiving groove, and the receiving groove is used to receive the first and second workpieces. The thermal insulation layer further comprises supporting springs, which are disposed on two opposing inner walls of the receiving groove and are used to support the second workpiece and position the second workpiece above the first workpiece.

[0014] The present invention further provides a control method for a shunt welding device, wherein the shunt welding device is the shunt welding device described above, and the shunt welding device includes a heating mechanism, a pushing mechanism, and a temperature measuring structure. The control method for the shunt welding device includes:

[0015] Starting the heating mechanism to heat the first workpiece;

[0016] controlling the temperature measuring structure to monitor the surface temperature of the first workpiece;

[0017] After the surface temperature of the first workpiece reaches the preset welding temperature, the pushing mechanism is controlled to drive the second workpiece to move to the first workpiece, and push the second workpiece in the direction toward the first workpiece, so that the welding point of the second workpiece is in contact with the welding point of the first workpiece for welding.

[0018] The technical solution of the present invention is to set a heating mechanism and a pushing mechanism in the processing space formed by the device body, so that the pushing mechanism can be raised and lowered above the heating mechanism, and then the first processing workpiece can be independently heated by using the heating mechanism. When the temperature of the first processing workpiece is detected to be heated to a suitable welding temperature, the pushing mechanism is used to move downward toward the heating mechanism to drive the second processing workpiece pre-installed above the first processing workpiece or pre-installed on the pushing mechanism at a corresponding interval to move to the second processing workpiece, so that heat is transferred to the solder paste between the first processing workpiece and the second processing workpiece, melting the solder paste and penetrating into the welding position of the first processing workpiece and the welding position of the second processing workpiece to realize the welding process of the two. By separating the first processing workpiece and the second processing workpiece to realize segmented welding operation, the second processing workpiece can be prevented from being affected by heat during the heating process of the first processing workpiece. The pushing mechanism is used to apply a certain pushing force to the second processing workpiece during the welding process, which can better squeeze or discharge bubbles in the solder paste under the action of the pushing force. The vacuum unit is used in combination with the device body to vacuum the processing space, so that the first processing workpiece and the second processing workpiece can be welded in a vacuum environment, further discharging bubbles in the solder paste, reducing the bubble rate of the solder paste at the welding point of the first processing workpiece and the second processing workpiece, effectively improving the welding processing qualification rate of the diverter, and improving the practicality and reliability of the diverter welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of an embodiment of a diverter welding device of the present invention;

[0021] Figure 2 for Figure 1 Structural exploded view of the push mechanism, welding fixture and heating mechanism of the diverter welding device;

[0022] Figure 3 for Figure 1A structural diagram of an embodiment of a lifting platform of a pushing mechanism of a diverter welding device;

[0023] Figure 4 for Figure 1 A structural diagram of an embodiment of a heating mechanism of a diverter welding device;

[0024] Figure 5 for Figure 1 A schematic diagram of a partial structure of an embodiment of a welding fixture of a shunt welding device;

[0025] Figure 6 1 is a flow chart of an embodiment of a control method for a diverter welding device according to the present invention.

[0026] Description of Figure Numbers:

[0027] Label name Label name 100 Shunt welding device 53 Lifting platform 10 Device body 531 Temperature measurement structure 11 Install the frame 533 Push piece 111 Conveying structure 535 Guide column 1111 Feeding conveyor belt 537 Support 1113 Unloading conveyor belt 539 stopper 13 Processing table 70 welding fixture 30 Heating mechanism 71 Thermal conductive layer 31 drive unit 711 The first limiter 311 Connector 73 Insulation layer 3111 Lifting guide structure 731 Container 313 Drive source 7311 Pick-and-place avoidance slot 33 Heating body 733 Load-bearing shrapnel 50 Push mechanism 7331 Connection 51 Connection structure 7333 Support 511 Drive parts 735 Second limiter 513 Sliding sleeve

[0028] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their 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 at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] In existing reflow soldering processes, most only use hot air to melt solder paste, solidify it, and then connect the alloy resistor and integrated circuit board to achieve welding of the workpiece. This can easily lead to a large number of bubbles within the solder paste after melting, affecting the conductivity between the alloy resistor and the integrated circuit board. In addition, the integrated circuit board of the shunt usually integrates multiple components. During the welding process, the electronic components on the integrated circuit board are easily damaged by the high-temperature airflow, resulting in low shunt welding reliability and affecting the shunt welding process production qualification rate. To address the above problems, the present invention provides a shunt welding device 100.

[0034] Reference Figures 1 to 5 In an embodiment of the present invention, the diverter welding device 100 includes a device body 10, a heating mechanism 30 and a pushing mechanism 50. A processing space is formed in the device body 10, and the device body 10 is provided with a vacuum unit, which is used to vacuum the processing space, defining the device body 10 to have a height direction; the heating mechanism 30 is provided in the processing space, and the heating mechanism 30 is used to heat the first processing workpiece; the pushing mechanism 50 is provided in the processing space and above the heating mechanism 30, and the pushing mechanism 50 is used to drive the second processing workpiece to move toward the first processing workpiece.

[0035] It is understood that the shunt welding device 100 can be used for precision welding between the alloy resistor of the current sensing module in the shunt and the integrated circuit board to ensure the qualified rate of the shunt production process. In this case, the first workpiece processed by the shunt welding device 100 can be the alloy resistor of the shunt, and the second workpiece can be the integrated circuit board of the shunt. During the welding process, the first workpiece can be heated by the heating mechanism 30 in the processing space formed by the device body 10. The heating mechanism 30 can directly heat the first workpiece by direct contact with the first workpiece through contact heat conduction, or indirectly heat the first workpiece through infrared radiation heating. During the heating process of the first workpiece, the first workpiece and the second workpiece can be separated, or the second workpiece can be pre-installed in the processing space away from the first workpiece to prevent the first workpiece from transferring heat to the second workpiece when the heating mechanism 30 is in operation, effectively preventing the second workpiece from being affected by the heat before the first workpiece is heated to the welding temperature. During the heating process of the first workpiece, the device body 10 can monitor the temperature of the first workpiece in real time by directly contacting the first workpiece or by indirect temperature measurement methods such as infrared temperature measurement. When the temperature of the first workpiece reaches the welding temperature at which the solder paste melts, the diverter welding device 100 can receive welding processing instructions, and then control the pushing mechanism 50 located above the heating mechanism 30 to move toward the heating mechanism 30. At this time, the second processing workpiece can be pre-set above the heating mechanism 30 through a fixed support fixture structure and set corresponding to the welding position of the first processing workpiece, or the second processing workpiece can be pre-installed on the pushing mechanism 50 and set corresponding to the welding position of the first processing workpiece, so that in the process of the pushing mechanism 50 moving toward the heating mechanism 30, the second processing workpiece can be driven to move to the first processing workpiece, and then the heat on the first processing workpiece is used to melt the solder paste set between the welding position of the first processing workpiece and the welding position of the second processing workpiece, so that the solder paste melts and penetrates into the two to weld the welding position of the first processing workpiece and the second processing. After the pushing device pushes the second processing workpiece to weld to the first processing workpiece, the fixture structure that fixes and supports the second processing workpiece can release the support and fixation of the second processing workpiece, or the connection between the pushing mechanism 50 and the second processing workpiece can be released, so that the first processing workpiece and the second processing workpiece are formed into a whole after welding for unloading, thereby ensuring the normal operation of the diverter welding device 100 and realizing stable welding processing of the first processing workpiece and the second processing workpiece.

[0036] By separating the first and second workpieces, the first workpiece is heated independently, and after being heated to a suitable temperature, the second workpiece is moved and pushed into contact with the first workpiece for welding. This isolates the heat conduction between the first and second workpieces during the heating process, effectively preventing the second workpiece from being damaged by the heat. During the welding process, the pushing mechanism 50 applies an appropriate force to the second workpiece to push the second workpiece and the first workpiece for welding. This force can cause bubbles in the solder paste between the second and first workpieces to be squeezed or removed from between the first and second workpieces, thereby preventing the bubbles in the solder paste after welding from affecting the electrical conductivity between the first and second workpieces, thereby affecting the detection accuracy and production qualification rate of the shunt. At the same time, during the operation of the diverter welding device 100, by maintaining the processing space in a relatively sealed processing environment, the vacuum unit of the device body 10 can be used to vacuum the processing space, so that the first processing workpiece and the second processing workpiece can be kept in a vacuum for welding processing, which is beneficial to better use the vacuum treatment to make the air flow in the processing space drive the bubbles in the solder paste to be discharged from the welding site, thereby better reducing the solder paste bubble rate between the first processing workpiece and the second processing workpiece, achieving better conductivity between the first processing workpiece and the second processing workpiece, further improving the production qualification rate of the diverter, and improving the practicality and reliability of the diverter welding device 100.

[0037] The technical solution of the present invention is to set a heating mechanism 30 and a pushing mechanism 50 in the processing space formed by the device body 10, so that the pushing mechanism 50 can be raised and lowered above the heating mechanism 30, and then the first processing workpiece can be independently heated by using the heating mechanism 30. When the temperature of the first processing workpiece is detected to be heated to a suitable welding temperature, the pushing mechanism 50 is used to move downward toward the heating mechanism 30 to drive the second processing workpiece pre-installed above the first processing workpiece or pre-installed on the pushing mechanism 50 at a corresponding interval to move to the second processing workpiece, so that heat is transferred to the solder paste between the first processing workpiece and the second processing workpiece, melting the solder paste and penetrating into the welding position of the first processing workpiece and the welding position of the second processing workpiece to realize the welding process of the two. By separating the first processing workpiece and the second processing workpiece to realize segmented welding operation, the second processing workpiece can be prevented from being affected by heat during the heating process of the first processing workpiece. By using the pushing mechanism 50 to apply a certain pushing force to the second processing workpiece during the welding process, the bubbles in the solder paste can be better squeezed or discharged under the action of the pushing force. In combination with the device body 10, the vacuum unit is used to vacuum the processing space, so that the first processing workpiece and the second processing workpiece can be welded in a vacuum environment, further discharging the bubbles in the solder paste, reducing the bubble rate of the solder paste at the welding point of the first processing workpiece and the second processing workpiece, effectively improving the welding processing qualification rate of the diverter, and improving the practicality and reliability of the diverter welding device 100.

[0038] Reference Figure 1 In one embodiment of the present invention, the device body 10 is provided with a mounting frame 11, the mounting frame 11 is arranged in the processing space, the pushing mechanism 50 and the heating mechanism 30 are both connected to the mounting frame 11, and are arranged at relative intervals along the height direction.

[0039] It is understandable that by providing the mounting frame 11 in the processing space, the pushing mechanism 50 and the heating mechanism 30 can be assembled onto the mounting frame 11 to form a whole, which is conducive to using the mounting frame 11 to support and fix the components of the diverter welding device 100, avoiding interference between the heating mechanism 30 and the pushing mechanism 50 in the processing space, and making the pushing mechanism 50 and the heating mechanism 30 better combined to form a whole, making the internal structure of the diverter welding device 100 more compact, and facilitating the design layout of the diverter welding device 100. Among them, the pushing mechanism 50 and the heating mechanism 30 can be connected to the mounting frame 11 in sequence at intervals along the height direction, so that the pushing mechanism 50 and the heating mechanism 30 are arranged in relative coordination, so that the first workpiece and the second workpiece can be more accurately relative to each other and connected, effectively reducing the welding offset error between the first workpiece and the second workpiece, and further improving the practicality and structural reliability of the diverter welding device 100.

[0040] Reference Figure 1 In one embodiment of the present invention, the mounting frame 11 is further provided with a conveying structure 111 , which is used to convey the first processed workpiece and / or the second processed workpiece, and the heating mechanism 30 is provided in the conveying path of the conveying structure 111 .

[0041] In this embodiment, a conveying structure 111 is provided on the mounting frame 11. The conveying structure 111 may be a structure such as a conveying belt or a transport guide rail for conveying workpieces. The conveying structure 111 may be used to better implement operations such as loading and unloading of the diverter welding device 100, making it more convenient for mass production of the diverter welding device 100. The conveying structure 111 may be used to convey a first workpiece to the heating mechanism 30 for heating; or it may be used to convey a second workpiece to the heating mechanism 30 and the pushing mechanism so that when the first workpiece is heated to a suitable temperature, the second workpiece is pushed to achieve welding of the two; or it may be used to convey a fixture pre-installed with the first and second workpieces at intervals between the heating mechanism 30 and the pushing mechanism 50 to achieve more convenient welding. At this time, the heating mechanism 30 can be arranged on the conveying path of the conveying structure 111, and the heating mechanism 30 and the conveying structure 111 can be arranged side by side, and the conveying structure 111 can be arranged on one side of the heating mechanism 30 or on two opposite sides, and the first processing workpiece or the second processing workpiece can be pushed from the side to the heating mechanism 30 for welding processing; or a processing gap can be formed in the conveying structure 111, and the heating mechanism 30 can be arranged in the processing gap, and the welding processing can be performed by conveying the fixture carrying the first processing workpiece and the second processing workpiece or pushing the first processing workpiece or the second processing workpiece to the heating mechanism 30, thereby effectively ensuring the loading processing of the diverter welding device 100 and further improving the practicality and reliability of the diverter welding device 100.

[0042] Reference Figure 1 In one embodiment of the present invention, the conveying structure 111 includes a loading conveyor belt 1111 and a unloading conveyor belt 1113, and the heating mechanism 30 is arranged on the conveying path of the loading conveyor belt 1111; the unloading conveyor belt 1113 is connected to the loading conveyor belt 1111, and the loading conveyor belt 1111 and the unloading conveyor belt 1113 are stacked in sequence along the height direction, and the conveying direction of the loading conveyor belt 1111 is opposite to the conveying direction of the unloading conveyor belt 1113.

[0043] In this embodiment, the diverter welding device 100 can use the loading conveyor 1111 to transport the first and second workpieces to the heating mechanism 30 for welding, thereby ensuring the normal operation of the diverter welding device 100. At this time, the loading conveyor 1111 can support and transport the fixture carrying the first and second workpieces or use the side push unit to push the first or second workpieces on the conveyor to the heating mechanism 30. By connecting the unloading conveyor 1113 to the loading conveyor 1111, the first and second workpieces can be welded to form a finished product under the cooperation of the heating mechanism 30 and the pushing mechanism 50. The finished product is then transported to the unloading conveyor 1113 by the conveyor of the loading conveyor 1111 and transported to the unloading area of ​​the diverter welding device 100 via the unloading conveyor 1113 for unloading of the workpieces, which is conducive to better realizing convenient loading and unloading of the diverter welding device 100 and further improving the automated operation of the diverter welding device 100. By arranging the loading conveyor belt 1111 and the unloading conveyor belt 1113 in an interlaced and stacked manner on the mounting frame 11, and making the conveying direction of the loading conveyor belt 1111 opposite to the conveying direction of the unloading conveyor belt 1113, the loading position and unloading position of the diverter welding device 100 can be set within the same area, which is convenient for the user's loading and unloading operations, and at the same time helps to make the overall structure of the diverter welding device 100 more compact, further improving the practicality and reliability of the diverter welding device 100.

[0044] Reference Figure 2 and Figure 4 In one embodiment of the present invention, the heating mechanism 30 includes a driving unit 31 and a heating body 33. The driving unit 31 is connected to the mounting frame 11; the heating body 33 is connected to the driving unit 31. The heating body 33 faces the surface of the pushing mechanism 50 to heat the first processing workpiece. The driving unit 31 is used to drive the heating body 33 to move up and down in the height direction.

[0045] In this embodiment, the heating mechanism 30 may include a driving unit 31 and a heating body 33. The heating body 33 may be a heating table provided with an electric heating system or a heat medium. The heating body 33 may be arranged relative to the pushing mechanism 50. At this time, the driving unit 31 is used to drive the heating body 33 to move up and down. Before the heating mechanism 30 heats the first workpiece, the driving unit 31 may drive the heating body 33 to move down to avoid other components in the diverter welding device 100, such as avoiding the transmission structure in the diverter welding device 100 used to transmit the first workpiece and the second workpiece, so as to ensure the normal operation of the diverter welding device 100. When the first workpiece is located above the heating mechanism 30 and needs to be heated by the heating mechanism 30, the heating body 33 may be driven down to avoid other components in the diverter welding device 100. When heating the first processing workpiece, the driving unit 31 can be used to drive the heating body 33 to move toward the pushing mechanism 50 and then contact the first processing workpiece, so that the heat on the heating body 33 can be transferred to the first processing workpiece for heating; and after the solder paste between the first processing workpiece and the second processing workpiece melts and connects the two, the driving unit 31 can be started again to drive the heating body 33 to move toward the direction of the pushing mechanism 50, so that the heating body 33 is separated from the contact with the first processing workpiece, so that the solder paste between the first processing workpiece and the second processing workpiece is no longer heated but cooled, and the heating mechanism 30 avoids the transmission structure of the transmission processing workpiece, further ensuring the normal operation of the diverter welding device 100 and improving the structural stability and reliability of the diverter welding device 100.

[0046] Furthermore, the driving unit 31 may include a connecting seat 311 and a driving source 313. The connecting seat 311 may be connected and fixed to the mounting frame 11. By installing the driving source 313 on the connecting seat 311 and connecting the driving source 313 to the heating body 33 disposed between the connecting seat 311 and the pushing mechanism 50, the driving source 313 is activated to drive the heating body 33 to move up and down. A lifting guide structure 3111 is provided on the connecting seat 311. The lifting guide structure 3111 may be a guide rail structure or a telescopic sleeve structure that slides in the height direction. The lifting guide structure 3111 is used to connect the connecting seat 311 and the heating body 33. The lifting guide structure 3111 can be used to guide and limit the lifting movement of the heating body 33, effectively preventing the heating body 33 from deflecting during movement, ensuring stable heating of the first workpiece by the heating mechanism 30, and further improving the structural stability and reliability of the diverter welding device 100.

[0047] Reference Figure 1 In one embodiment of the present invention, the device body 10 also includes a processing table 13 and a protective cover body. The protective cover body is connected to the processing table 13 and encloses the processing table 13 to form a processing space. The mounting frame 11 and the vacuum unit are installed on the processing table 13.

[0048] In this embodiment, the device body 10 may include a processing table 13 and a protective cover body. The protective cover body is connected to the processing table 13 to form a processing space. The protective cover body and the processing table 13 are tightly connected and cooperated to better achieve a sealing effect of the processing space, so that the vacuum device can better vacuum the processing space to achieve a better vacuum environment in the processing space, further reducing the bubble rate of the solder paste between the first processing workpiece and the second processing workpiece. Among them, the protective cover body can be formed with a certain operating window or operating door, and a sealing structure such as a sealing gasket or sealing ring is set at the opening and closing part and the connection of the operating window or operating door to ensure the sealing effect of the processing space. The operating window or operating door can be used to facilitate the user to operate the components and processing materials for welding in the processing space without the user having to remove the protective cover body as a whole, further improving the convenience and practicality of operation of the diverter welding device 100.

[0049] Reference Figure 3 In one embodiment of the present invention, the pushing mechanism 50 is further provided with a temperature measuring structure 531, and the temperature measuring structure 531 is used to measure the temperature of the first workpiece.

[0050] In this embodiment, the temperature measuring structure 531 can be disposed on the side of the pushing mechanism 50 facing the heating mechanism 30, so that the temperature measuring structure 531 can be used to measure the temperature of the first workpiece, thereby achieving real-time temperature monitoring of the first workpiece during heating. In this case, the temperature measuring structure 531 can directly obtain the temperature of the first workpiece using a temperature measuring probe abutting the first workpiece; or the temperature measuring structure 531 can detect the temperature of the first workpiece through infrared temperature measurement. When the temperature measuring structure 531 detects that the temperature of the first workpiece has reached the welding temperature, a control instruction can be promptly issued to the pushing mechanism 50, driving the pushing mechanism 50 to move the second workpiece toward the first workpiece to achieve welding. By setting the temperature measuring structure 531 on the pushing mechanism 50, it can be helpful to better form the temperature measuring structure 531 and the pushing mechanism 50 into a whole, making the overall structure of the diverter welding device 100 more compact and reducing the occupied area of ​​the diverter welding device 100; at the same time, the temperature measuring structure 531 can be more conveniently connected to the control unit of the pushing mechanism 50, so that the temperature measuring structure 531 can more timely control the action of the pushing mechanism 50 according to the temperature feedback of the first processing workpiece, further improving the practicality and reliability of the diverter welding device 100.

[0051] Reference Figure 3In one embodiment of the present invention, the temperature measuring structure 531 is a temperature measuring probe, which is retractably connected to the surface of the pushing mechanism 50 facing the heating mechanism 30. The pushing mechanism 50 is further provided with a pushing member 533. The pushing member 533 has a height shorter than that of the temperature measuring structure 531. The pushing member 533 is used to move the second workpiece toward the first workpiece.

[0052] In this embodiment, when the temperature measuring structure 531 is in the form of a temperature measuring probe, the temperature measuring structure 531 can be set on the surface of the pushing mechanism 50 facing the heating mechanism 30 using a telescopic structure. At this time, during the process of the heating mechanism 30 heating the first processing workpiece, the pushing mechanism 50 can first drive the temperature measuring structure 531 to move and contact the first processing workpiece, and maintain the temperature measuring structure 531 in contact with the first processing workpiece, so that the temperature measuring structure 531 can monitor the heating temperature of the first processing workpiece in real time. When monitoring that the first processing workpiece reaches a suitable welding temperature, the pushing structure can be driven down again, so that the pushing member 533 drives the second processing workpiece to move to the first processing workpiece, thereby realizing the welding processing of the first processing workpiece and the second processing workpiece. While the pushing mechanism 50 drives the pushing member 533 to move downward, since the temperature measuring structure 531 is retractable, the pushing mechanism 50 can be lowered to retract the temperature measuring structure 531, so that the temperature measuring structure 531 avoids the pushing mechanism 50 from further descending and moving, thereby effectively avoiding damage to the temperature measuring structure 531 caused by squeezing the first workpiece as the pushing mechanism 50 further descends, thereby further improving the practicality and structural reliability of the diverter welding device 100.

[0053] Furthermore, the temperature measuring structure 531 may include a telescopic sleeve, a temperature sensing probe, and an elastic member. The telescopic sleeve is embedded in the pushing mechanism 50 and extends along the moving direction of the pushing mechanism 50. The pushing mechanism 50 is provided with a lead-out hole connected to the inner cavity of the telescopic sleeve. The temperature sensing probe is telescopically inserted into the inner cavity of the telescopic sleeve, with one end of the temperature sensing probe exposed at the end face of the telescopic sleeve facing away from the pushing mechanism 50. The other end of the temperature sensing probe is provided with a transmission cable inserted into the lead-out hole. The elastic member is disposed within the telescopic sleeve and connects the end face of the temperature sensing probe to the inner wall of the telescopic sleeve. In this embodiment, the temperature measuring structure 531 can be telescopically arranged on the pushing mechanism 50 by movably setting the temperature sensing probe within the telescopic sleeve, embedding the telescopic sleeve on the surface of the pushing mechanism 50 facing the heating mechanism 30, and connecting the temperature sensing probe to the inner cavity of the telescopic sleeve using the elastic member. At this time, driven by the pushing mechanism 50, the temperature probe can be moved to the surface of the first workpiece in contact with the workpiece to measure the temperature. When the temperature of the first workpiece reaches the welding temperature, the pushing mechanism 50 continues to descend, driving the pushing member 533 to push the second workpiece into contact with the first workpiece for welding. The temperature probe can then be retracted within the telescopic sleeve and the elastic member can be compressed, allowing the temperature measuring structure 531 to better retract the temperature probe to avoid the lifting and lowering movement of the pushing mechanism 50, thereby ensuring the normal operation of the pushing mechanism 50. By arranging the temperature probe to move within the telescopic sleeve and attaching the telescopic sleeve to the pushing mechanism 50, the temperature measuring structure 531 can be better formed into a whole, facilitating the overall removal, inspection, and maintenance of the temperature measuring structure 531. The telescopic sleeve can also provide a certain degree of protection for the temperature probe, allowing the temperature probe to more accurately contact the first workpiece for temperature measurement, further improving the structural stability and reliability of the pushing mechanism 50. A lead-out hole connected to the inner cavity of the telescopic sleeve is provided in the pushing mechanism 50, and the temperature sensing output cable of the temperature sensing probe can also be connected to the control system of the pushing mechanism 50 through the lead-out hole, which is conducive to better facilitating the cable output of the temperature measuring structure 531 and reducing the interference between the cable of the temperature measuring structure 531 and the pushing mechanism 50.

[0054] Furthermore, a support member 537 may be provided on the surface of the pushing mechanism 50 facing the heating mechanism 30. The support member 537 is retractably connected to the pushing mechanism 50 and is used to abut and support the first workpiece. In this embodiment, the temperature measuring structure 531 has only one contact point when abutting the first workpiece for temperature measurement, so that the force exerted by the pushing mechanism 50 on the first workpiece through the temperature measuring structure 531 is relatively concentrated. In this case, by providing the support member 537, the support member 537 can be used to abut the first workpiece with a gap between the support member 537 and the temperature measuring structure 531 during the process of abutting the first workpiece for temperature measurement. The support member 537 can provide a certain supporting force, which is beneficial for further increasing the force area exerted by the pushing mechanism 50 on the first workpiece, preventing the first workpiece from being tilted due to uneven force and affecting the temperature measurement accuracy, and allowing the temperature measuring structure 531 to more stably act on the first workpiece for temperature measurement.

[0055] In one embodiment of the present invention, the pushing mechanism 50 may include a connecting structure 51 and a lifting platform 53. The connecting structure 51 may be connected to the mounting frame 11 in the device body 10 that fixes the pushing mechanism 50, the heating mechanism 30, and other components, thereby achieving connection and fixation of the pushing mechanism 50. A driving member 511 may be provided on the connecting structure 51, and the lifting platform 53 is provided between the connecting structure 51 and the heating mechanism 30. In this case, the driving member 511 may be connected to the lifting platform 53 so that the driving member 511 drives the lifting platform 53 toward the heating mechanism 30. Furthermore, the aforementioned temperature measuring structure 531, the pushing member 533, and the supporting member 537 may be installed on the side of the lifting platform 53 facing the heating mechanism 30. When the driving member 511 drives the lifting platform 53 to move upward and downward, the temperature measuring structure 531 is moved to contact the first workpiece for temperature monitoring, and the pushing member 533 drives the second workpiece to move toward the first workpiece for welding. Among them, the driving member 511 can adopt a driving structure such as a stepping motor or a telescopic push rod. At this time, the driving member 511 can be set between the connecting structure 51 and the lifting platform 53 to connect the two. Then, by starting the driving member 511, the driving member 511 can well realize the lifting and moving drive of the lifting platform 53, thereby ensuring the normal operation of the pushing device and further improving the structural stability and reliability of the pushing mechanism 50.

[0056] Furthermore, a sliding sleeve 513 may be provided on the connecting structure 51. The sliding sleeve 513 is embedded in the connecting structure 51. A guide column 535 is provided on the surface of the lifting platform 53 facing away from the heating mechanism 30. The guide column 535 is movably inserted into the sliding sleeve 513. In this embodiment, by utilizing the guiding sliding of the guide column 535 within the sliding sleeve 513, the cooperation between the guide column 535 and the sliding sleeve 513 can be utilized to better limit and guide the lifting movement of the lifting platform 53, so that the lifting platform 53 can be better lifted and lowered vertically in the direction toward the heating mechanism 30. This effectively prevents the lifting platform 53 from deviating during movement, which would result in the temperature measuring structure 531 and the pushing member 533 being unable to accurately contact the first and second workpieces for temperature measurement and push welding operations. This ensures the normal operation of the pushing mechanism 50 and further improves the structural stability and reliability of the pushing mechanism 50. Of course, the present application is not limited to this. In other embodiments, the connection structure 51 and the lifting platform 53 can also be connected by utilizing the cooperation of the slide rail and the slider to limit the lifting movement of the lifting platform 53, or a limiting column can be set on the connection structure 51 to surround and abut the outer peripheral side of the lifting platform 53 for limiting.

[0057] Furthermore, a stopper 539 is provided on the surface of the lifting platform 53 facing the processing station. The stopper 539 is used to abut against the processing station to fix the lifting platform 53. In this embodiment, the stopper 539 can be a stopper column structure provided on the lifting platform 53. When the temperature measuring structure 531 detects that the first processing workpiece has reached the welding temperature and drives the lifting platform 53 to drive the pushing member 533 to push the second processing workpiece to contact and weld with the first processing workpiece, the stopper 539 can abut against the heating mechanism 30 or the fixture supporting the first and second processing workpieces, thereby limiting the lifting platform 53 from further descending and preventing the lifting platform 53 from exerting excessive pressure on the second processing workpiece, which may damage the second processing workpiece. Among them, the heating mechanism 30 or the fixture carrying the first and second processing workpieces can be provided with an in-position contact or pressure sensor or other in-position detection unit triggered by contact with the stop member 539, so that when the stop member 539 abuts against the heating mechanism 30 or the fixture carrying the first and second processing workpieces, the in-position detection unit can be triggered to send a lifting and lowering in-position signal to the pushing mechanism 50, controlling the driving member 511 to stop further lowering the lifting platform 53 or maintain the position of the lifting platform 53 at this time, further avoiding excessive pressure exerted by the lifting platform 53 on the second processing workpiece, and improving the reliability and practicality of the pushing mechanism 50. Secondly, the stopper 539 can also adopt an infrared ranging device, etc., by using the stopper 539 to detect the distance between the lifting platform 53 and the heating mechanism 30, and then when the lifting platform 53 drives the pushing member 533 to push the second processing workpiece to contact and weld with the first processing workpiece, the stopper 539 detects that the distance between the lifting platform 53 and the heating mechanism 30 at this time reaches the critical pushing distance, and then the pushing mechanism 50 can be fed back to control the connecting structure 51 to stop further lowering the lifting platform 53 or maintain the position of the lifting platform 53 at this time, so as to avoid excessive pressure exerted by the lifting platform 53 on the second processing workpiece, thereby further improving the reliability and practicality of the pushing mechanism 50.

[0058] Reference Figure 2 and Figure 5 In one embodiment of the present invention, the diverter welding device 100 further includes a welding fixture 70, which is provided with a heat-conducting layer 71, which is in contact with the heating mechanism 30. The surface of the heat-conducting layer 71 facing away from the heating mechanism 30 is used to support and fix at least one first processing workpiece, and is used to conduct heat to the first processing workpiece.

[0059] In this embodiment, by providing a welding fixture 70, at least one first workpiece can be pre-assembled using the welding fixture 70. By placing the welding fixture 70 on the heating mechanism 30, multiple first workpieces can be heated and welded simultaneously, which facilitates the mass production of the diverter welding device 100. In this case, the side of the welding fixture 70 that contacts the heating mechanism 30 can be provided with a heat-conducting layer 71 having excellent thermal conductivity. The heat from the heating mechanism 30 is transferred to the first workpiece by the heat-conducting layer 71, thereby heating the first workpiece.

[0060] A fixing structure for supporting or securing the first workpiece can be formed on the heat-conducting layer 71, allowing the first workpiece to be more stably and reliably placed on the heat-conducting layer 71 for heating and contact welding with the second workpiece. Furthermore, a first stopper 711 is provided on the surface of the heat-conducting layer 71 to engage and secure the first workpiece. In this embodiment, a fixing hole can be formed on the first processing workpiece. At this time, a first limiting member 711 is provided on the surface of the heat-conducting layer 71. The first limiting member 711 can be a limiting column or a limiting protrusion structure connected to the heat-conducting layer 71. When the first processing workpiece is pre-installed on the welding fixture 70, the first limiting member 711 can be inserted into the fixing hole of the first processing workpiece to realize the limiting fixation of the first processing workpiece, which is beneficial to avoid the first processing workpiece from being offset on the heat-conducting layer 71, so that the first processing workpiece and the second processing workpiece can be better and more accurately aligned for welding, thereby ensuring the production qualification rate of the diverter welding device 100 and further improving the practicality and reliability of the welding fixture 70.

[0061] Reference Figure 2 and Figure 5 In one embodiment of the present invention, the welding fixture 70 further includes a thermal insulation layer 73. The thermal insulation layer 73 is connected to the surface of the heat-conducting layer 71 facing away from the heating mechanism 30 and, together with the heat-conducting layer 71, forms at least one receiving groove 731. The heat-conducting layer 71 forms the bottom wall of the receiving groove 731, which is used to accommodate the first and second workpieces. The thermal insulation layer 73 also includes supporting springs 733 disposed on opposing inner walls of the receiving groove 731. The supporting springs 733 support the second workpiece and position the second workpiece above the first workpiece.

[0062] In this embodiment, by arranging a heat-insulating layer 73 with good heat-insulating performance on the surface of the heat-conducting layer 71 facing away from the heating mechanism 30, and enclosing the heat-insulating layer 73 and the heat-conducting layer 71 to form at least one accommodating groove 731, a supporting spring piece 733 can be arranged on the inner side wall of the accommodating groove 731, and then utilizing the heat-insulating effect of the heat-insulating layer 73, the second processing workpiece can be better pre-installed on the supporting spring piece 733, so that the first processing workpiece and the second processing workpiece are relatively spaced apart and arranged on the welding fixture 70, and the heat-insulating layer 73 is effectively utilized to isolate the heat of the first processing workpiece from being transferred to the second processing workpiece during the heating process, thereby avoiding the second processing workpiece from being affected by the heat, which is conducive to better utilizing the welding fixture 70 to realize the pre-installation of the first processing workpiece and the second processing workpiece, and the first processing workpiece and the second processing workpiece can be loaded by transporting the welding fixture 70 to the heating mechanism 30, which is conducive to better improving the operating convenience of the diverter welding device 100, and further improving the practicality and reliability of the diverter welding device 100. By utilizing the elastic action of the supporting spring piece 733, when the pushing mechanism 50 drives the second workpiece toward the first workpiece for welding, the second workpiece can apply pressure to the supporting spring piece 733, causing the supporting spring piece 733 to elastically deform under the force and then retract to avoid the second workpiece from moving toward the first workpiece. This achieves the push welding of the second workpiece to the first workpiece under the action of the pushing mechanism 50, ensuring the normal operation of the diverter welding device 100. Among them, the accommodating groove 731 can also form a structure that encloses the first and second workpieces, so that the first and second workpieces pre-installed in the accommodating groove 731 can be less affected by the external environment and prevent them from being offset by airflow or external forces, further improving the reliability of the accurate alignment welding of the first and second workpieces. By respectively arranging supporting spring pieces 733 on the two opposite inner walls of each accommodating groove 731, the first processing workpiece and the second processing workpiece in each accommodating groove 731 can be welded better and independently, and the two groups of supporting spring pieces 733 arranged on the opposite side walls of the accommodating groove 731 can more stably support the second processing workpiece during the heating process of the first processing workpiece to keep the two separated, thereby further improving the structural stability and reliability of the welding fixture 70.

[0063] Secondly, the inner sidewall of the receiving groove 731 can be arranged to surround the first workpiece. In this case, a pick-up and placement avoidance groove 7311 can be recessed on the inner sidewall of the receiving groove 731. In this embodiment, the first and second workpieces are arranged in the receiving groove 731, so that the shape of the receiving groove 731 can fit the shape of the first and second workpieces, and the inner sidewall of the receiving groove 731 can surround the first workpiece. This allows the receiving groove 731 of the welding fixture 70 to achieve a certain fixed limiting effect, ensuring the stability of the welding fixture 70 in accommodating the first and second workpieces, effectively preventing the first and second workpieces from shifting during the welding process, further improving the accurate alignment welding between the first and second workpieces, and improving the structural stability and reliability of the welding fixture 70. By setting a recessed pick-up and placement avoidance groove 7311 on the inner side wall of the accommodating groove 731, the pick-up and placement avoidance groove 7311 can pass through the notch of the accommodating groove 731 on the insulation layer 73, so that the user can reach into the pick-up and placement avoidance groove 7311 to clamp the opposite side walls of the first processing workpiece, thereby realizing the operation of extracting the processing workpiece from the accommodating groove 731 and clamping the first processing workpiece into the accommodating groove 731, further improving the loading and extraction convenience of the welding fixture 70, and improving the practicality and reliability of the welding fixture 70.

[0064] Furthermore, the supporting spring piece 733 may include a connecting portion 7331 and a supporting portion 7333, the connecting portion 7331 being connected to the surface of the supporting portion facing away from the heat conducting portion; the supporting portion 7333 being bent and connected to the connecting portion 7331, and being arranged at an angle, and the distance between the supporting portion 7333 and the inner side wall of the accommodating groove 731 gradually increases from top to bottom along the height direction, the supporting portion 7333 is made of elastic material, and the supporting portion 7333 is used to support the second processing workpiece.

[0065] In this embodiment, the supporting spring 733 can be connected and fixed to the thermal insulation layer 73 by utilizing the connecting portion 7331. In this case, the connecting portion 7331 can be connected and fixed to the thermal insulation layer 73 using bolts, or a clamping groove or a clip can be provided on the thermal insulation layer 73 to clamp and fix the connecting portion 7331, thereby improving the stability and reliability of the connection between the supporting spring 733 and the thermal insulation layer 73. In this case, by bending the supporting portion 7333 made of a certain elastic material and connecting it to the connecting portion 7331, and gradually increasing the distance between the supporting portion 7333 and the inner wall of the thermal insulation layer 73 from top to bottom along the height direction, the supporting portion 7333 can form a certain oblique support structure arranged on the inner wall of the thermal insulation layer 73, thereby allowing the second workpiece to be more stably supported on the supporting portion 7333 of the supporting spring 733, so that the supporting spring 733 can space the second workpiece above the first workpiece. After the temperature of the first processing workpiece reaches the welding temperature, a pushing force can be applied to the second processing workpiece so that the second processing workpiece moves downward toward the first processing workpiece under the action of pressure for welding. At this time, during the downward movement of the second processing workpiece, a pushing force can be applied to the support portion 7333 of the supporting spring piece 733. Under the connection and fixing action of the connecting portion 7331 on the supporting portion 7333, the other end of the supporting portion 7333 can be elastically deformed under the force and move toward the inner wall of the thermal insulation layer 73, so that the second processing workpiece can drive the support portion 7333 of the supporting spring piece 733 to elastically retract and release the supporting effect on the second processing workpiece under the action of the pushing force, so that the supporting spring piece 733 avoids the movement of the second processing workpiece, so that the second processing workpiece can stably move to the first processing workpiece for welding, further improving the structural reliability and stability of the welding fixture 70.

[0066] Furthermore, the thermal insulation layer 73 includes a second stopper 735 within each receiving groove 731. The second stopper 735 is used to limit the position of the second workpiece. In this embodiment, the thermal insulation layer 73 can be formed by providing a stopper column or a stopper protrusion structure within the receiving groove 731 to form the second stopper 735. In this case, the second stopper 735 can be arranged at intervals and abutted against opposite sides of the second workpiece, so that the second workpiece can be stably positioned within the receiving groove 731 under the action of the second stopper 735, effectively preventing the second stopper 735 from shifting within the receiving groove 731. During the welding process, the limiting action of the second stopper 735 allows the second workpiece to be more stably lowered vertically onto the first workpiece for welding. This helps to better prevent the second workpiece from shifting due to external forces during operation of the diverter welding device 100. This further ensures the precise alignment of the first and second workpieces and improves the practicality and structural stability of the welding fixture 70. Furthermore, when the second processing workpiece is provided with a plug-in fixing hole, the second limiting member 735 can also be partially inserted into the plug-in fixing hole, and then by abutting the second processing workpiece against the opposite sides of the second processing workpiece and partially inserting the second processing workpiece, the second limiting member 735 can more stably fix the position of the second processing workpiece in the accommodating groove 731, effectively placing the second limiting member 735 horizontally offset in the accommodating groove 731, and ensuring that the second limiting member 735 can be more stably and reliably vertically lifted and lowered to the first processing workpiece for welding processing, further improving the practicality and reliability of the welding fixture 70. Among them, the second limiting member 735 can be formed by integral injection molding or integral casting with the insulation layer 73, or the second limiting member 735 can be made of the same insulation material as the insulation layer 73, and connected and embedded in the insulation layer 73, so that the second limiting member 735 can have the same insulation performance as the insulation layer 73, further avoiding the second processing workpiece from being affected by heat during the heating process of the first processing workpiece, and further improving the structural stability and reliability of the welding fixture 70.

[0067] The present invention also provides a control method for a diverter welding device, referring to Figure 6 , Figure 6The flowchart of one embodiment of the control method of the shunt welding device of the present invention is shown. The embodiment of the present application provides an embodiment of the control method of the shunt welding device. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described can be performed in a different order than here. The specific structure of the shunt welding device 100 and the coordinated operation between the structures can refer to the shunt welding device 100 in the above embodiment. Specifically, in the embodiment of the present invention, the shunt welding device 100 may include a heating mechanism 30, a pushing mechanism 50 and a temperature measuring structure 531. The control method of the shunt welding device includes the following steps:

[0068] Step S10: starting the heating mechanism 30 to heat the first workpiece;

[0069] When the diverter welding device 100 is in operation, the heating mechanism 30 can heat the first workpiece by directly contacting the first workpiece to conduct heat, or can heat the first workpiece by acting on the first workpiece through infrared radiation heating. Among them, by adjusting the power of the heating mechanism 30, the heating efficiency and heating temperature of the heating mechanism 30 can be more stably regulated, which is conducive to enabling the heating mechanism 30 to heat the temperature of the first workpiece to the required welding processing temperature more quickly and better maintain the temperature of the first workpiece, meeting the time requirements of the welding operation, better reducing the time of the welding heating process, and further improving the welding processing efficiency of the diverter welding device 100. When the heating mechanism 30 heats the first processing workpiece by contact heat conduction, the heating structure of the heating mechanism 30 can be controlled so that the heating mechanism 30 only heats the position where the first processing workpiece is located. At this time, a detection module for identifying the position of the first processing workpiece can be provided on the heating mechanism 30, so that the heating mechanism 30 can change the heating area according to the position of the first processing workpiece in real time, which is conducive to better reducing the heat energy waste of the heating mechanism 30, so that the heating mechanism 30 can better concentrate on heating the first processing workpiece, further improving the practicality and reliability of the diverter welding device 100.

[0070] Step S30: controlling the temperature measuring structures 531 and 531 to monitor the surface temperature of the first workpiece;

[0071] The temperature measuring structure 531531 can use a movable temperature measuring probe structure to measure the temperature of the first workpiece. When the first workpiece enters the welding space of the device body 10 and is located in the heating area of ​​the heating mechanism 30, a control instruction can be sent to the temperature measuring structure 531531, so that the temperature measuring structure 531531 can move the temperature measuring probe to the first workpiece to contact and sample the surface temperature of the first workpiece. Alternatively, the temperature measuring structure 531531 can use infrared radiation temperature measurement to measure the temperature of the first workpiece, so that the temperature measuring structure 531531 can convert the infrared radiation signal emitted by the first workpiece into an electrical signal, and then sample and obtain the surface temperature of the first workpiece. By using the temperature measuring structure 531531 to monitor the surface temperature of the first workpiece during the heating mechanism 30, real-time monitoring of the surface temperature of the first workpiece can be achieved. Therefore, corresponding operations can be made in a timely manner according to the heating temperature of the first workpiece during the welding operation, ensuring the normal operation of the welding operation and further improving the reliability of the diverter welding device 100.

[0072] Step S50: After the surface temperature of the first workpiece reaches the preset welding temperature, the pushing mechanism 50 is controlled to move the second workpiece to the first workpiece and push the second workpiece toward the first workpiece so that the welding points of the second workpiece contact and weld with the welding points of the first workpiece.

[0073] The diverter welding device 100 may also be provided with an operating console or mobile control terminal device for controlling the diverter welding device 100. Before the welding operation is performed, the user can determine the welding temperature required for the first workpiece based on the welding temperature requirements, thermal conductivity, and other properties of the solder paste, and input the determined welding temperature into the control system of the diverter welding device 100 as a preset welding temperature. Furthermore, after the temperature measurement structures 531531 monitor the surface temperature of the first workpiece and determine that it has been heated to the preset welding temperature, a start welding instruction can be sent to the control unit of the diverter welding device 100, which controls the pushing mechanism 50 to drive the second workpiece to move toward the first workpiece and push the second workpiece onto the first workpiece for welding. At this time, the second processing workpiece can be pre-installed above the first processing workpiece at intervals, and the welding sites of the second processing workpiece and the welding sites of the first processing workpiece are arranged corresponding to each other. Solder paste can be pre-attached at the welding sites of the second processing workpiece, or the solder paste can be placed between the second processing workpiece and the first processing workpiece when the second processing workpiece moves toward the first processing workpiece. Then, by pushing the second processing workpiece to move in the direction toward the first processing workpiece, the heat on the first processing workpiece can be transferred to the solder paste to melt the solder paste. The melted solder paste is used to adhere to the welding sites of the second processing workpiece and the welding sites of the first processing workpiece to achieve contact welding between the two, thereby ensuring electrical conductivity between the second processing workpiece and the first processing workpiece and realizing welding processing between the first processing workpiece and the second processing workpiece.

[0074] Since the heating mechanism 30 heats the first workpiece by direct contact or infrared radiation, and the second workpiece is moved to perform welding when the first workpiece is heated to the required welding temperature, the second workpiece can be kept at a certain distance from the first workpiece during the heating process, thereby preventing the heat from the first workpiece from being transferred to the second workpiece and affecting the components on the second workpiece, thereby ensuring the reliability and stability of the welding between the first and second workpieces, thereby facilitating better improvement of the welding pass rate of the shunt welding device 100 and further improving the practicality and reliability of the shunt welding device 100. During the welding process, by pushing the second workpiece in the direction toward the first workpiece, the force applied to the second workpiece can be transferred to the melted solder paste, so that the bubbles in the solder paste can be squeezed out or burst under the action of the external force, thereby facilitating better reduction of the bubble rate in the solder paste connecting the first and second workpieces, reducing the impact of the bubbles in the solder paste on the conductivity of the first and second workpieces, and further improving the production pass rate of the shunt.

[0075] Optionally, the diverter welding device 100 can also be provided with a device body 10, a processing space is formed in the device body 10, a vacuum unit for vacuuming the processing space is provided in the device body, and the heating mechanism 30, the pushing mechanism 50 and the temperature measuring structure 531 are all arranged in the processing space.

[0076] After the step of controlling the temperature measuring structures 531 and 531 to monitor the surface temperature of the first workpiece, the method further includes:

[0077] Step S70: controlling the vacuum unit to start up, so as to form a vacuum environment in the processing space.

[0078] It can be understood that the device body 10 can be a shell structure with a certain sealing performance, so that the processing space can form a sealed space with a certain sealing performance. During the welding operation, the vacuum unit and the sealing structure of the device body 10 can be used to form a vacuum processing environment in the processing space. Then, when welding is performed in a vacuum environment, the bubbles carried in the melted solder paste can be adsorbed by the vacuum negative pressure and escape from the solder paste, which is conducive to better avoiding the solder paste connecting the first processing workpiece and the second processing workpiece after the welding is completed. A large number of bubbles affect the conductivity of the two, further improves the qualified rate of the diverter welding process, and improves the practicality and reliability of the diverter welding device 100. Among them, the vacuum unit can be started after the first processing workpiece and the second processing workpiece are loaded into the processing space and the sealing device body 10 is closed, so that the vacuum unit can gradually vacuum the processing space as the heating mechanism 30 heats the first processing workpiece, and when the first processing workpiece is heated to the preset welding temperature and the second processing workpiece is moved for welding, the processing space reaches a vacuum degree suitable for extracting bubbles in the solder paste; or, the vacuum unit can be started when the first processing workpiece is heated to the preset welding temperature, so that the second processing workpiece can be loaded into the processing space during the heating of the first processing workpiece and the sealing device body 10 is closed, which is conducive to better utilizing the gap of the welding process to improve the processing production efficiency. At this time, after the vacuum unit is started, the vacuum degree in the processing space can be quickly increased to a value suitable for extracting bubbles in the solder paste, ensuring that when the integrated circuit unit is moved to the exit of the first processing workpiece for welding, the bubbles in the solder paste can be better protected from escaping.

[0079] Furthermore, in one embodiment of the present invention, after the step of starting the heating mechanism 30 to heat the first workpiece, the method further includes:

[0080] Step S: obtaining the temperature of the heating mechanism 30 and adjusting the heating rate of the heating mechanism 30 according to the temperature of the heating mechanism 30 .

[0081] It can be understood that when the heating mechanism 30 adopts a contact heat conduction structure to heat the first processing workpiece, a temperature measuring module for monitoring the temperature of the heating mechanism 30 can be provided in the heating mechanism 30, so that the temperature of the heating mechanism 30 can be monitored and obtained in real time during the process of the heating mechanism 30 heating the first processing workpiece. This is conducive to adjusting the heating rate of the heating mechanism 30 according to the initial temperature of the heating mechanism 30, the temperature difference between the heating mechanism 30 and the first processing workpiece during the heating process and other attribute parameters, thereby better improving the welding processing efficiency of the diverter welding device 100.

[0082] Among them, by adjusting the heating rate of the heating mechanism 30, the heating mechanism 30 can have a three-stage heating process; the first stage is a rapid heating process, in which the heating mechanism 30 can set a preset temperature rise threshold slightly lower than the preset welding temperature according to the preset welding temperature and the thermal conductivity of the heating mechanism 30, and then increase the heating power of the heating mechanism 30 to make the heating mechanism 30 quickly increase the temperature to the preset temperature rise threshold, thereby realizing rapid heating of the heating mechanism 30; after monitoring the heating mechanism 30 to reach the preset temperature rise threshold after a certain period of time, the second stage can be entered, which is a temperature control transition process, in which the heating power of the heating mechanism 30 can be controlled to make the heating mechanism 30 have a smooth heating process. The first workpiece is heated to the preset welding temperature by the heating mechanism 30, thereby ensuring that the first workpiece can be heated to the preset welding temperature more stably under the heating of the heating mechanism 30, thereby avoiding temperature drift and the like in the first workpiece during the rapid heating stage. When the heating mechanism 30 is monitored to stably heat the first workpiece to the preset welding temperature, the heating mechanism 30 can enter the third stage, which is a constant temperature stage. During this heating stage, the temperature of the heating mechanism 30 can be kept constant or within a certain temperature range, so that the heating mechanism 30 can more stably provide the required welding temperature for welding the first workpiece and the integrated circuit unit, so that the solder paste can fully dissolve and connect the first workpiece and the integrated circuit unit within a certain period of time, thereby ensuring the qualified rate of the shunt welding process. Furthermore, by monitoring the temperature of the heating mechanism 30 and adjusting the heating rate of the heating mechanism 30, the production efficiency and production quality of the shunt welding device 100 can be better improved, thereby further improving the reliability of the shunt welding device 100.

[0083] In one embodiment of the present invention, the heating mechanism 30 is provided with a heating body 33, and an electric heating structure is provided in the heating body 33. The step of obtaining the temperature of the heating mechanism 30 and adjusting the heating rate of the heating mechanism 30 includes:

[0084] Step S: obtaining the temperature of the heating body 33 and determining the first input current according to the temperature of the heating body 33 and a preset temperature rise threshold;

[0085] Step S: adjusting the input current of the electric heating structure to the first input current.

[0086] It is understood that the electric heating structure can be a resistor module with a certain resistance value. Taking advantage of the characteristic of the resistor module generating heat when energized, the electric heating structure can be placed in the heating body 33 and powered on to heat the heating body 33. When the heating mechanism 30 receives a start command to heat the first workpiece, the temperature measurement module within the heating mechanism 30 can be controlled to sample the initial temperature of the heating mechanism 30 at that time. By comparing this temperature with a preset temperature rise threshold, the temperature rise required for the heating mechanism 30 to reach the preset temperature rise threshold can be determined. At this time, since the resistance of the electric heating structure is a constant, the user can set the first preset time for the heating mechanism 30 to quickly heat up to the preset temperature rise threshold according to the required welding processing time, and then according to the first preset time, the resistance value of the electric heating structure and the temperature rise obtained by comparison, the current value required for the electric heating structure to heat up to the preset temperature rise threshold within the first preset time can be calculated by Joule's law, and the current value is set as the first input current. By using the inverter module of the heating mechanism 30 to adjust the input current of the electric heating structure, the input current of the electric heating structure can be controlled to be the first input current when the heating mechanism 30 starts to heat the first processing workpiece, so that the electric heating structure can quickly heat up under the action of the first input current with a larger current value, and the heating body 33 can be heated to the preset temperature rise threshold within the first preset time, reducing the heating waiting time of the heating mechanism 30, which is conducive to better improving the production and processing efficiency of the diverter welding device 100.

[0087] Furthermore, in one embodiment of the present invention, after the step of adjusting the input current of the electric heating structure to the first input current, the method further includes:

[0088] Step S25: After the first preset time, the temperature of the heating body 33 and the surface temperature of the first workpiece are obtained, and the second input current is determined according to the temperature of the heating body 33 and the surface temperature of the first workpiece;

[0089] Step S27: adjusting the input current of the electric heating structure to the second input current.

[0090] A timing unit may be provided in the control system of the diverter welding device 100. When the first input current for the rapid heating of the electric heating structure is obtained by calculation and the input current of the electric heating structure is adjusted to the first input current, the timing unit may be started to start timing. At this time, after the first preset time has passed, the first preset time may be the theoretical time for the electric heating structure to heat up to a preset temperature rise threshold under the action of the first input current. By obtaining the temperature of the heating body 33 at this time, the heat dissipation loss of the heating body 33 in the environment may be obtained by comparing the temperature of the heating body 33 at this time with the preset temperature rise threshold. At this time, the temperature measuring structure 531531 can also be controlled to feedback to the heating mechanism 30 the heating temperature of the first processing workpiece after the heating body 33 has passed the first preset time. The thermal conductivity loss of the heating body 33 can be obtained by comparing the temperature of the first processing workpiece at this time with the temperature of the heating body 33. Then, according to the difference between the temperature of the first processing workpiece at this time and the preset welding temperature, plus the heat dissipation loss of the heating body 33 and the thermal conductivity loss of the heating body 33, it can be obtained that the heating body 33 needs to increase the temperature difference that needs to be increased to stably heat the first processing workpiece to the preset welding temperature after the first preset time. The corresponding heating temperature is effectively formulated according to the influence of the environmental heat dissipation and the heat conduction of the heating body 33 to ensure that the first processing workpiece is stably heated to the preset welding temperature. At this time, the user can set a second preset time for heating the first workpiece to the preset welding temperature after the first preset time according to the actual welding processing time requirements. Then, according to Joule's law, the second preset time, the temperature difference that the electric heating structure needs to increase, and the resistance of the electric heating structure can be used to calculate the current value of the electric heating structure for steadily heating the first workpiece to reach the preset welding temperature within the second preset time. The current value is set as the second input current. By using the converter module of the heating mechanism 30 to adjust the input current of the electric heating structure, the input current of the electric heating structure after the first preset time can be controlled to be the second input current, so that the heating rate can be reduced after the electric heating structure is rapidly heated, and the electric heating structure can be ensured to heat the first workpiece smoothly to the preset welding temperature, which is beneficial to prevent the first workpiece from being in an environment of continuous high-speed heating with a certain probability of thermal residue, and avoid the temperature measuring structure 531531 detecting that the first workpiece is still in a rapid heating process after reaching the preset welding temperature, resulting in the first workpiece temperature being too high during the welding process, further ensuring the smooth operation of the welding operation and improving the reliability and stability of the diverter welding device 100.

[0091] Furthermore, in one embodiment of the present invention, after the surface temperature of the first workpiece reaches a preset welding temperature, the step of controlling the pushing mechanism 50 to move the second workpiece to the first workpiece and push the second workpiece toward the first workpiece so that the welding points of the second workpiece contact and correspond to the welding points of the first workpiece for welding further includes:

[0092] Step S501: Acquire the temperature of the heating body 33 and determine the third input current according to the temperature of the heating body 33;

[0093] Step S503: adjusting the input current of the electric heating structure to a third input current.

[0094] When the temperature measurement structure 531 531 monitors the temperature of the first workpiece and stably reaches the preset welding temperature, the heating body 33 needs to be controlled to maintain a constant temperature to prevent the temperature of the heating body 33 from continuing to increase significantly. Maintaining the preset welding temperature for a certain welding time can better allow the solder paste to fully melt and connect the first workpiece and the integrated circuit unit. At this time, when the first workpiece stably reaches the preset welding temperature, the heating mechanism 30 can be controlled to sample the temperature of the heating body 33. Based on the current temperature of the heating body 33 and the required welding time, the input current required for the heating body 33 to maintain the temperature is calculated according to Joule's law. This current value is set as the third input current. By using the current conversion module of the heating mechanism 30 to adjust the input current of the electric heating structure, the input current of the electric heating structure during the welding process of the first and second workpieces can be controlled to be the third input current. This can further better maintain the preset welding temperature for a certain welding time, allowing the solder paste to fully melt and connect the first and second workpieces. This further improves the welding stability and reliability of the first workpiece and the integrated circuit unit of the shunt, and improves the qualified rate of the processed materials of the shunt welding device 100.

[0095] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A shunt welding device, characterized in that: include: A device body, wherein a processing space is formed in the device body, and the device body is provided with a vacuum unit, wherein the vacuum unit is used to vacuum the processing space, and the device body is defined as having a height direction; a heating mechanism, the heating mechanism being disposed in the processing space and being used to heat a first processing workpiece; and A pushing mechanism is provided in the processing space and above the heating mechanism, and is used to drive the second processing workpiece to move toward the first processing workpiece; The diverter welding device further includes a welding fixture, wherein the welding fixture is provided with a heat-conducting layer, the heat-conducting layer abuts against the heating mechanism, and the surface of the heat-conducting layer facing away from the heating mechanism is used to support and fix at least one first workpiece and to conduct heat to the first workpiece; The welding fixture is further provided with a heat-insulating layer, the heat-insulating layer being connected to a surface of the heat-conducting layer facing away from the heating mechanism and enclosing at least one receiving groove with the heat-conducting layer, the heat-conducting layer forming a groove bottom wall of the receiving groove, and the receiving groove being used to receive the first workpiece and the second workpiece; The heat insulation layer is further provided with a bearing spring sheet, which is arranged on two opposite inner side walls of the accommodating groove. The bearing spring sheet is used to support the second processing workpiece and to space the second processing workpiece above the first processing workpiece.

2. The shunt welding device according to claim 1, characterized in that: The device body is provided with a mounting frame, and the mounting frame is arranged in the processing space. The pushing mechanism and the heating mechanism are both connected to the mounting frame and are arranged with relative spacing along the height direction.

3. The shunt welding device according to claim 2, characterized in that: The mounting frame is further provided with a conveying structure, and the conveying structure is used to convey the first processed workpiece and / or the second processed workpiece, and the heating mechanism is arranged on the conveying path of the conveying structure.

4. The shunt welding device according to claim 2, characterized in that: The heating mechanism comprises: a driving unit connected to the mounting frame; and A heating body is connected to the driving unit. The heating body faces the surface of the pushing mechanism to heat the first workpiece. The driving unit is used to drive the heating body to move up and down in the height direction.

5. The shunt welding device according to claim 2, characterized in that: The device body further includes a processing table and a protective cover body, wherein the protective cover body is connected to the processing table and encloses the processing table to form the processing space, and the mounting frame and the vacuum unit are installed on the processing table.

6. The shunt welding device according to any one of claims 1 to 5, characterized in that: The pushing mechanism is further provided with a temperature measuring structure, and the temperature measuring structure is used to measure the temperature of the first processing workpiece.

7. The shunt welding device according to claim 6, characterized in that: The temperature measuring structure is a temperature measuring probe, and the temperature measuring structure is telescopically connected to the surface of the pushing mechanism facing the heating mechanism; The pushing mechanism is further provided with a pushing piece, the length of the pushing piece along the height direction is smaller than the length of the temperature measuring structure along the height direction, and the pushing piece is used to drive the second processing workpiece to move toward the first processing workpiece.

8. A control method for a diverter welding device, characterized in that: The shunt welding device is the shunt welding device according to any one of claims 1 to 7, the shunt welding device comprises a heating mechanism, a pushing mechanism and a temperature measuring structure, and the control method of the shunt welding device comprises: Starting the heating mechanism to heat the first workpiece; controlling the temperature measuring structure to monitor the surface temperature of the first workpiece; After the surface temperature of the first workpiece reaches the preset welding temperature, the pushing mechanism is controlled to drive the second workpiece to move to the first workpiece, and push the second workpiece in the direction toward the first workpiece, so that the welding point of the second workpiece is in contact with the welding point of the first workpiece for welding.

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