Lead-free welding equipment

By introducing a blower and electric slide rail system into the lead-free soldering equipment, the circuit board can be automatically cooled and moved after soldering, solving the problem of burns caused by high post-soldering temperatures and improving safety and efficiency.

CN223819781UActive Publication Date: 2026-01-23HANGZHOU JINZHOU ELECTRONICS CO LTD
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Patent Information

Application Number
CN202423288206.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-23
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing lead-free soldering equipment generates high temperatures in the circuit connectors after soldering, which can easily burn workers and reduce safety during use.

Method used

A combined structure of blower, connecting pipe, compressor, air duct and air nozzle was designed to cool the circuit board after welding. Automatic feeding and unloading are achieved through a second electric slide rail. Combined with infrared sensor to control the movement of welding torch, welding efficiency and safety are improved.

Benefits of technology

It enables automatic cooling of the circuit board after welding, avoiding burns to workers, improving the efficiency and safety of the device, and enhancing the stability and practicality of the welding process.

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Abstract

The utility model relates to the technical field of welding, and discloses lead-free welding equipment which comprises a workbench, the upper surface of the workbench is fixedly connected with a welding bin, and symmetrical hydraulic rods are fixedly embedded in the inner top wall of the welding bin. According to the lead-free welding equipment, through mutual cooperation of the air blower, the connecting pipe, the compressor, the air pipe and the air outlet nozzle, the temperature of airflow sent out by the air blower can be reduced through the compressor, then the cooled airflow is transmitted to the air outlet nozzle through the air pipe by means of the air pipe, and the airflow is blown to the surface of a steel welded circuit board through the air outlet nozzle; and in combination with the design of a second electric sliding rail on the workbench, a second sliding block can be automatically driven to move, and then the second sliding block drives the circuit board on the placement plate to move, so that the effects of automatic feeding and automatic discharging are achieved, and the situation that when people take the circuit board, the circuit board is cooled is avoided. And workers are easily scalded.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a lead-free welding equipment. BACKGROUND

[0002] The lead-free welding device is a device that places a cut lead-containing tin sheet on a circuit connecting piece and then heats it to weld the tin sheet and the circuit connecting piece together, which greatly improves the efficiency of welding the circuit connecting piece.

[0003] The existing patent (announcement number: CN207997121U) discloses a high-precision automatic lead-free welding device, which comprises a machine table, a feeding station seat, a welding station seat, a material belt feeding mechanism, a heating mechanism and a punching mechanism. The welding station seat is installed on the machine table. The feeding station seat is symmetrical and arranged on both sides of the welding station seat. The material belt feeding mechanism is installed on the punching station seat and drives the lead-free tin strip material belt to feed the welding station seat. The heating mechanism is installed on the welding station seat and comprises two electric heaters. The product positioning groove is arranged on the welding station seat, and the electric heaters are installed in the product positioning groove and located on both sides of the product positioning groove. The punching mechanism is located above the welding station seat and is used for punching and cutting the lead-free tin strip material belt. The device has reasonable structure, simple operation, high automation, fast production efficiency, precise temperature control, good welding point stability and high welding strength.

[0004] The above-mentioned comparative document has the effects of simple operation, high automation, fast production efficiency, precise temperature control, good welding point stability and high welding strength during use, but after welding is completed, people need to take out the circuit connecting piece from the inside of the product positioning groove. Since the temperature of the just-welded circuit connecting plate is high, the worker is easy to be scalded when taking the circuit connecting plate, which reduces the safety of use. Practical new type content

[0005] In view of the defects of the prior art, the present application provides a lead-free welding equipment, which has the advantages of improving the safety of use.

[0006] To achieve the above object, the present application provides the following technical scheme: A lead-free welding equipment, comprising a workbench, the upper surface of the workbench is fixedly connected with a welding bin, the inner top wall of the welding bin is fixedly embedded with symmetrical hydraulic rods, the output ends of the two hydraulic rods are fixedly connected with an L-shaped mounting plate, the left side surface of the L-shaped mounting plate is fixedly installed with a first electric sliding rail, the outer surface of the first electric sliding rail is slidingly connected with a first sliding block, the left side surface of the first sliding block is fixedly connected with a buckle, the inner wall of the buckle is connected with a welding gun, the upper surface of the welding bin is fixedly connected with a main machine, the right side surface of the main machine is fixedly communicated with a transmission pipe, the output end of the transmission pipe penetrates through the welding bin through a through hole and is fixedly communicated with the input end of the welding gun, the upper surface of the workbench is fixedly connected with symmetrical second electric sliding rails, the outer surfaces of the second electric sliding rails are slidingly connected with second sliding blocks, and the upper surfaces of the second sliding blocks are fixedly connected with a placing plate.

[0007] The upper surface of the workbench is fixedly connected with a cooling bin, the inner top wall of the cooling bin is fixedly embedded with symmetrical air outlets, the upper surface of the cooling bin is fixedly installed with a blower, the output end of the blower is fixedly communicated with a connecting pipe, the upper surface of the cooling bin is fixedly installed with a compressor through a base, the input end of the compressor is fixedly communicated with the output end of the connecting pipe, the output end of the compressor is fixedly communicated with an air pipe, and the input ends of the air outlets are fixedly communicated with the output end of the air pipe.

[0008] Through the above scheme, the temperature of the airflow sent by the blower can be cooled by the compressor through the cooperation of the blower, the connecting pipe, the compressor, the air pipe and the air outlet, and then the cooled airflow is transmitted to the air outlet through the air pipe, and the airflow is blown on the surface of the steel-welded circuit board through the air outlet, so that the cooling effect of the steel-welded circuit board is realized. Combined with the design of the second electric sliding rail on the workbench, the second sliding block can be automatically driven to move, and then the second sliding block drives the placing plate to move, so that the effects of automatic feeding and automatic discharging are achieved, the working efficiency of the device is improved, and the problem that people are easily scalded when taking the circuit board is avoided, and the safety of the device is improved.

[0009] Further, the inner wall of the welding bin is fixedly connected with a sealing plate, the front surface of the sealing plate is provided with an observation window, and the inner wall of the observation window is fixedly connected with tempered glass.

[0010] Through the above scheme, the sealing property of the welding bin can be improved by setting the sealing plate, and the process of welding the circuit board can be observed by the staff through the observation window, so that the practicability of the device is improved.

[0011] Further, the back of the welding bin is provided with a group of equidistantly arranged heat dissipation windows, and the inner wall of each heat dissipation window is fixedly connected with a dust screen.

[0012] Through the above scheme, by setting the heat dissipation window, the heat generated when the welding gun is welded on the circuit board can be better dissipated, ensuring the normal use of the welding gun and improving the working efficiency of the device.

[0013] Further, the inner wall of the L-shaped mounting plate is fixedly connected with symmetrically arranged keel plates, and each keel plate is made of steel material.

[0014] Through the above scheme, by setting the keel plate, the structural strength of the L-shaped mounting plate can be strengthened, and the stability of the welding gun during welding can be further strengthened.

[0015] Further, the inside of the welding bin is provided with an infrared sensor, and the infrared sensor is located below the first sliding block.

[0016] Through the above scheme, by setting the infrared sensor, the infrared sensor can control the hydraulic rod to push the L-shaped mounting plate to move up and down, and then the L-shaped mounting plate can drive the welding gun to move through the first electric sliding rail and the first sliding block, thereby improving the welding efficiency of the device.

[0017] Further, the upper surface of the workbench is fixedly connected with symmetrically arranged limiting plates, and the mutually close sides of the two limiting plates are fixedly connected with a guide rail, the outer surface of the guide rail is slidingly connected with a limiting block, and the upper surface of the limiting block is fixedly connected with the bottom surface of the placing plate.

[0018] Through the above scheme, by setting the limiting plate, the sliding distance of the placing plate can be limited, and through the design of the guide rail and the limiting block, the stability of the placing plate during movement can be strengthened, and the circuit board during welding is more stable.

[0019] Further, the inner bottom wall of the placing plate is fixedly connected with a plurality of equidistantly arranged anti-skid pads, and the maximum thickness of each anti-skid pad is five millimeters.

[0020] Through the above scheme, by setting the anti-skid pad, the friction between the placing plate and the circuit board can be strengthened, thereby enhancing the stability of the circuit board during movement and welding.

[0021] Further, the inner bottom wall of the placing plate is fixedly connected with two symmetrically arranged positioning columns, and each positioning column is made of plastic steel material.

[0022] Through the above scheme, by setting the positioning column, the position of the circuit board on the placing plate can be limited, avoiding the phenomena of deviation and sliding during movement or welding, and improving the working efficiency of the device.

[0023] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0024] The lead-free welding device can realize the effect of cooling the circuit board after steel welding by the cooperation of the air blower, the connecting pipe, the compressor, the air pipe and the air outlet nozzle. The compressor can reduce the temperature of the airflow sent by the air blower, and then the airflow after temperature reduction is transmitted to the air outlet nozzle through the air pipe, and the airflow is blown on the surface of the circuit board after steel welding through the air outlet nozzle. The design of the second electric sliding rail on the workbench can automatically drive the second sliding block to move, and then the second sliding block drives the circuit board on the placement plate to move, thereby achieving the effects of automatic feeding and automatic discharging, improving the working efficiency of the device, and avoiding the problem of easy scalding of workers when the circuit board is taken, thereby improving the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The overall structure of the structure of the present application is shown Figure One ;

[0026] Figure 2 The overall structure of the structure of the present application is shown Figure Two ;

[0027] Figure 3 The overall structure of the structure of the present application is shown

[0028] Figure 4 The overall structure of the structure of the present application is shown

[0029] Figure 5 The overall structure of the structure of the present application is shown Figure 2 enlarged view of the structure of the present application.

[0030] In the figure:

[0031] 1, workbench; 2, welding chamber; 3, sealing plate; 4, window; 5, main machine; 6, transmission pipe; 7, hydraulic rod; 8, cooling chamber; 9, heat dissipation window; 10, second electric sliding rail; 11, second sliding block; 12, compressor; 13, air blower; 14, connecting pipe; 15, air outlet nozzle; 16, air pipe; 17, L-shaped mounting plate; 18, keel plate; 19, first electric sliding rail; 20, first sliding block; 21, infrared sensor; 22, buckle; 23, welding torch; 24, limiting plate; 25, guide rail; 26, limiting block; 27, placement plate; 28, non-slip pad; 29, positioning column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] Please refer to Figure 1 , Figure 3 and Figure 4 , a lead-free welding device in the embodiment comprises a workbench 1, the upper surface of the workbench 1 is fixedly connected with a welding bin 2, the inner top wall of the welding bin 2 is fixedly embedded with symmetrical hydraulic rods 7, the output ends of the two hydraulic rods 7 are fixedly connected with an L-shaped mounting plate 17, the left side surface of the L-shaped mounting plate 17 is fixedly installed with a first electric sliding rail 19, the outer surface of the first electric sliding rail 19 is slidably connected with a first sliding block 20, the left side surface of the first sliding block 20 is fixedly connected with a buckle 22, the inner wall of the buckle 22 is connected with a welding gun 23, the upper surface of the welding bin 2 is fixedly connected with a main machine 5, the right side surface of the main machine 5 is fixedly communicated with a transmission pipe 6, the output end of the transmission pipe 6 penetrates through the welding bin 2 through a through hole and is fixedly communicated with the input end of the welding gun 23, the upper surface of the workbench 1 is fixedly connected with symmetrical second electric sliding rails 10, the outer surface of each second electric sliding rail 10 is slidably connected with a second sliding block 11, the upper surfaces of the two second sliding blocks 11 are fixedly connected with a placing plate 27;

[0034] The upper surface of the workbench 1 is fixedly connected with a cooling bin 8, the inner top wall of the cooling bin 8 is fixedly embedded with symmetrical air outlets 15, the upper surface of the cooling bin 8 is fixedly installed with a blower 13, the output end of the blower 13 is fixedly communicated with a connecting pipe 14, the upper surface of the cooling bin 8 is fixedly installed with a compressor 12 through a base, the input end of the compressor 12 is fixedly communicated with the output end of the connecting pipe 14, the output end of the compressor 12 is fixedly communicated with an air pipe 16, the input end of each air outlet 15 is fixedly communicated with the output end of the air pipe 16, through the cooperation of the blower 13, the connecting pipe 14, the compressor 12, the air pipe 16 and the air outlet 15, the temperature of the airflow sent out by the blower 13 can be cooled by the compressor 12, then the cooled airflow is transmitted to the air outlet 15 through the air pipe 16, and the airflow is blown on the surface of the circuit board after welding through the air outlet 15, so as to realize the cooling effect of the steel after welding on the circuit board, and the second sliding block 11 can be automatically driven to move by the design of the second electric sliding rail 10 on the workbench 1, so as to drive the placing plate 27 to move, thereby achieving the effects of automatic feeding and automatic discharging, improving the working efficiency of the device, and avoiding the problem that people are easily scalded when taking the circuit board, thereby improving the safety of the device.

[0035] Please refer to Figure 1 、 Figure 2 and Figure 4 , the inner wall of the welding bin 2 is fixedly connected with a sealing plate 3, the front surface of the sealing plate 3 is provided with an observation window 4, and the inner wall of the observation window 4 is fixedly connected with tempered glass. By setting the sealing plate 3, the sealing property of the welding bin 2 can be improved. By setting the observation window 4, the staff can conveniently watch the process of welding the circuit board, and the practicability of the device is improved. The back surface of the welding bin 2 is provided with a group of equidistantly arranged heat dissipation windows 9. The inner wall of each heat dissipation window 9 is fixedly connected with a dust screen. By setting the heat dissipation windows 9, the heat generated when the welding gun 23 welds the circuit board can be better dissipated, the normal use of the welding gun 23 is ensured, the working efficiency of the device is improved, the inner wall of the L-shaped mounting plate 17 is fixedly connected with two symmetrical keel plates 18. Each keel plate 18 is made of steel material. By setting the keel plate 18, the structural strength of the L-shaped mounting plate 17 can be improved, and the stability of the welding gun 23 during welding can be improved. The inside of the welding bin 2 is provided with an infrared sensor 21. The infrared sensor 21 is located below the first sliding block 20. By setting the infrared sensor 21, the infrared sensor 21 can control the hydraulic rod 7 to push the L-shaped mounting plate 17 to move up and down, and then the L-shaped mounting plate 17 drives the welding gun 23 to move through the first electric sliding rail 19 and the first sliding block 20, so that the welding efficiency of the device is improved.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 5 , the upper surface of the workbench 1 is fixedly connected with two symmetrical limiting plates 24. The two limiting plates 24 are fixedly connected with a guide rail 25 on the side surface close to each other. The outer surface of the guide rail 25 is slidably connected with a limiting block 26. The upper surface of the limiting block 26 is fixedly connected with the bottom surface of the placing plate 27. By setting the limiting plate 24, the sliding distance of the placing plate 27 can be limited. By setting the guide rail 25 and the limiting block 26, the stability of the placing plate 27 during movement can be improved, and the stability of the circuit board during welding is improved. The inner bottom wall of the placing plate 27 is fixedly connected with a plurality of equidistantly arranged anti-skid pads 28. The maximum thickness of each anti-skid pad 28 is five millimeters. By setting the anti-skid pad 28, the friction between the placing plate 27 and the circuit board can be improved, so that the stability of the circuit board during movement and welding is improved. The inner bottom wall of the placing plate 27 is fixedly connected with two symmetrical positioning columns 29. Each positioning column 29 is made of plastic steel material. By setting the positioning column 29, the position of the circuit board on the placing plate 27 can be limited, so that the circuit board is prevented from deviating or sliding during movement or welding, and the working efficiency of the device is improved.

[0037] The air blower 13, the connecting pipe 14, the compressor 12, the air pipe 16 and the air outlet nozzle 15 are matched with each other, so that the compressor 12 can reduce the temperature of the airflow sent by the air blower 13, and then the airflow after being cooled is transmitted to the air outlet nozzle 15 through the air pipe 16, and the airflow is blown on the surface of the circuit board after welding through the air outlet nozzle 15, so that the effect of cooling the circuit board after welding is realized. Combined with the design of the second electric sliding rail 10 on the workbench 1, the second sliding block 11 can be automatically driven to move, and then the circuit board on the placing plate 27 is moved by the second sliding block 11, so that the effects of automatic feeding and automatic discharging are realized, the working efficiency of the device is improved, and the problem that the workers are easily scalded when taking the circuit board is avoided, and the safety of the device is improved.

[0038] The working principle of the above embodiment is as follows:

[0039] When the device is used, the worker first places the circuit board above the placing plate 27, and then controls the second electric sliding rail 10 to work by using the controller, so that the second electric sliding rail 10 drives the circuit board on the placing plate 27 to move through the second sliding block 11, that is, the effect of automatic feeding is realized. Then, when the circuit board enters the inside of the welding bin 2, the infrared sensor 21 controls the hydraulic rod 7 to move upward or downward, and drives the first electric sliding rail 19 to move up and down through the L-shaped mounting plate 17. Then, the first electric sliding rail 19 drives the welding gun 23 to move through the first sliding block 20, so that the effect of welding the circuit board is realized. After welding is completed, the second electric sliding rail 10 drives the circuit board on the placing plate 27 to move through the second sliding block 11, so that the circuit board enters the cooling bin 8. Then, the air blower 13 generates airflow, and the airflow is transmitted to the inside of the compressor 12 through the connecting pipe 14. Then, the compressor 12 reduces the temperature of the airflow sent by the air blower 13, and then the airflow after being cooled is transmitted to the air outlet nozzle 15 through the air pipe 16, and the airflow is blown on the surface of the circuit board after welding through the air outlet nozzle 15, so that the effect of cooling the circuit board after welding is realized. Finally, the second electric sliding rail 10 drives the circuit board on the placing plate 27 to move out of the inside of the cooling bin 8 through the second sliding block 11, so that the problem that the workers are easily scalded when taking the circuit board is solved, and the safety of the device is improved.

[0040] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0041] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A lead-free soldering device, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a welding chamber (2). The inner top wall of the welding chamber (2) is fixedly inlaid with symmetrical hydraulic rods (7). The output ends of the two hydraulic rods (7) are fixedly connected to an L-shaped mounting plate (17). The left side of the L-shaped mounting plate (17) is fixedly installed with a first electric slide rail (19). The outer surface of the first electric slide rail (19) is slidably connected with a first slider (20). The left side of the first slider (20) is fixedly connected with a buckle (22). The inner wall of the buckle (22) is engaged with a welding torch. 23), the upper surface of the welding chamber (2) is fixedly connected to the host (5), the right side of the host (5) is fixedly connected to the transmission pipe (6), the output end of the transmission pipe (6) passes through the welding chamber (2) through the through hole and is fixedly connected to the input end of the welding gun (23), the upper surface of the workbench (1) is fixedly connected to the symmetrical second electric slide rail (10), the outer surface of each second electric slide rail (10) is slidably connected to the second slider (11), and the upper surface of the two second sliders (11) is fixedly connected to the placement plate (27). A cooling chamber (8) is fixedly connected to the upper surface of the workbench (1). A symmetrical air outlet (15) is fixedly embedded in the inner top wall of the cooling chamber (8). A blower (13) is fixedly installed on the upper surface of the cooling chamber (8). A connecting pipe (14) is fixedly connected to the output end of the blower (13). A compressor (12) is fixedly installed on the upper surface of the cooling chamber (8) through a base. The input end of the compressor (12) is fixedly connected to the output end of the connecting pipe (14). A duct (16) is fixedly connected to the output end of the compressor (12). The input end of each air outlet (15) is fixedly connected to the output end of the duct (16).

2. The lead-free soldering equipment according to claim 1, characterized in that: The inner wall of the welding chamber (2) is fixedly connected to a sealing plate (3), and an observation window (4) is provided on the front of the sealing plate (3). The inner wall of the observation window (4) is fixedly connected to tempered glass.

3. The lead-free soldering equipment according to claim 1, characterized in that: The welding chamber (2) has a set of heat dissipation windows (9) arranged at equal intervals on its back side, and each heat dissipation window (9) has a dustproof net fixedly connected to its inner wall.

4. The lead-free soldering equipment according to claim 1, characterized in that: The inner wall of the L-shaped mounting plate (17) is fixedly connected with symmetrical keel plates (18), each of which is made of rigid material.

5. The lead-free soldering equipment according to claim 1, characterized in that: The welding chamber (2) is equipped with an infrared sensor (21) located below the first slider (20).

6. The lead-free soldering equipment according to claim 1, characterized in that: The upper surface of the workbench (1) is fixedly connected with symmetrical limiting plates (24), and the two limiting plates (24) are fixedly connected with a guide rail (25) on one side that is close to each other. The outer surface of the guide rail (25) is slidably connected with a limiting block (26), and the upper surface of the limiting block (26) is fixedly connected to the bottom surface of the placement plate (27).

7. The lead-free soldering equipment according to claim 1, characterized in that: The inner bottom wall of the placement plate (27) is fixedly connected with multiple sets of anti-slip pads (28) arranged at equal distances, and the maximum thickness of each anti-slip pad (28) is five millimeters.

8. The lead-free soldering equipment according to claim 1, characterized in that: The inner bottom wall of the placement plate (27) is fixedly connected to two symmetrical positioning posts (29), each of which is made of plastic steel.

Citation Information

Patent Citations

  • Automatic unleaded welding set of high accuracy

    CN207997121U