A positioning fixture and PCB board welding machine

Abstract

The utility model relates to the technical field of welding machines, and specifically discloses a positioning fixture and a PCB board welding machine, comprising: an outer shell, an electric control slide rail system, an electric telescopic rod two, and an electric telescopic rod three. A fixed plate is fixedly connected to the bottom of the inner wall of the outer shell by the electric telescopic rod one, a movable fixture base is installed on the fixed plate, the top of the electric telescopic rod two is connected to the electric control slide rail system, a welding rod is connected below the electric control slide rail system, a welding head is connected below the welding rod, and an exhaust gas treatment box is fixedly installed on the upper part of the outer shell. The beneficial effects are as follows: the positioning fixture and the PCB board welding machine proposed by the utility model can clamp and position PCB boards of different sizes, a hose connected to the welding rod introduces cold air to quickly reduce the temperature of the soldering point, so that the soldering point is more firm, and the treatment liquid in the exhaust gas treatment box fixed to the outer shell can remove harmful substances in the toxic gas generated during welding, and then be discharged into the air, which can play a role in protecting the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a positioning fixture and a PCB board welding machine. Background Art

[0002] PCB boards are widely used in the current electronic field, and the welding of PCB boards is the most basic guarantee for the production of PCB boards.

[0003] In the prior art, when welding PCB boards, it is troublesome to fix them because the sizes of the PCB boards are different. In addition, the PCB board welding machine will produce harmful gases and pollute the environment during welding. Therefore, the utility model proposes a positioning fixture and a PCB board welding machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning fixture and a PCB board welding machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture, which comprises: an outer shell, an electric control slide rail system and two electric telescopic rods, a liftable fixed plate is installed on the inner side of the outer shell, a movable fixture base is installed on the fixed plate, the top of the two electric telescopic rods is connected to the electric control slide rail system, a welding rod is connected to the bottom of the electric control slide rail system, a welding head is connected to the bottom of the welding rod, an exhaust gas treatment box is fixedly installed on the upper part of the outer shell, the front and rear sides of the inner end of the fixture base are slidably connected to a second fixture, and the inner end of the second fixture is elastically connected to the inner wall of the fixture base through a spring.

[0006] Preferably, sliding tracks are provided on both sides of the inner end of the shell, and two electric telescopic rods are provided, which are respectively slidably installed in the sliding tracks on the left and right sides of the inner end of the shell, and the electric telescopic rods are located between the inner wall of the shell and the fixed plate, and the upper end of the electric telescopic rods is lower than the top of the shell.

[0007] Preferably, two clamp bases are installed on both sides of the fixing plate, and the clamp bases can slide on the slide rails, and the clamp bases are U-shaped.

[0008] Preferably, a guide rail is provided on the inner end side wall of the clamp base, a slider is connected to the inner slide of the guide rail, a spring is fixedly installed on one end of the slider, a baffle is fixedly installed on the other side of the spring, and the outer side of the baffle is fixedly connected to one side of the second clamp.

[0009] Preferably, the top of the exhaust gas treatment box is connected to an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is connected to an air suction machine, and the air suction machine is located at the inner end of the outer shell.

[0010] Preferably, the welding head is connected to a pipe, one end of which is connected to a hose, the hose is connected to a blower, and the other end is connected to a conical nozzle.

[0011] A PCB board welding machine comprises the above-mentioned positioning fixture.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a positioning fixture and a PCB board welding machine, which can adjust the height of a base and an electric telescopic rod according to PCB boards of different sizes; a hose connected to the welding rod introduces cold air to quickly reduce the temperature of the welding point, making the welding point more solid; a treatment liquid in an exhaust gas treatment box fixed to an outer shell can remove harmful substances in toxic gases generated during welding and then discharge them into the air, thereby protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structural fixture base of the utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the base of the structural fixture of the utility model;

[0017] Figure 4 For this utility model Figure 1 A magnified view of the structure of the middle A area;

[0018] Figure 5 This is a cross-sectional schematic diagram of the exhaust gas treatment box structure of the utility model.

[0019] In the figure: 1. Shell; 2. Exhaust gas treatment box; 3. Electric telescopic rod 1; 4. Electric telescopic rod 2; 5. Electric control slide rail system; 6. Hose; 7. Fixing plate; 8. Slide rail; 9. Welding rod; 10. Second clamp; 11. Clamp base; 12. Spring; 13. Baffle; 14. Slider; 15. Electric telescopic rod 3; 16. Guide rail; 17. Welding head; 18. Conical nozzle; 19. Air suction machine; 20. Exhaust pipe; 21. Slide rail; 22. Inlet pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1 The utility model provides a technical solution: a positioning fixture and a PCB board welding machine, a positioning fixture and a PCB board welding machine comprises: a shell 1, an electric control slide rail system 5 and an electric telescopic rod 4, a fixed plate 7 is fixedly connected to the bottom of the inner wall of the shell 1 by an electric telescopic rod 3, a movable fixture base 11 is installed on the fixed plate 7, the fixture base 11 can slide on the slide rail 8, the fixture base 11 is U-shaped, and can cooperate with the electric telescopic rod 3 to adapt to PCB boards of different sizes, the electric control slide rail system 5 is installed on the top of the electric telescopic rod 4, the electric The movable telescopic rod 24 is installed between the shell 1 and the fixed plate 7, lower than the top of the shell 1, and can be moved forward and backward through the sliding track 21. Through the movement of the fixture base 11 and the electric telescopic rod 24, the welding rod 9 can be conveniently moved to the desired position to weld different PCB board positions. The welding rod 9 is connected to the bottom of the electric control slide rail system 5, and the welding rod 9 is connected to the bottom of the welding head 17. A pipe is connected to the welding head 17, one end of which is connected to a hose 6, and the other end is connected to a conical nozzle 18. A PCB board welding machine includes the above-mentioned positioning fixture.

[0023] In order to adapt to PCB boards of different sizes, the welding position can be adjusted by adjusting the electric telescopic rod 1 3 and the electric telescopic rod 2 4 to achieve a better welding effect, and the soldering point is blown by an external fan through the hose 6 and the conical nozzle 18 to quickly cool the soldering point. The exhaust gas treatment box 2 is fixedly arranged on the upper part of the shell 1 to treat the toxic exhaust gas generated during welding.

[0024] Embodiment 2

[0025] See also Figure 2-Figure 3 On the basis of the first embodiment, in order to clamp PCB boards of different sizes, a spring 12 is installed inside the clamp base 11, one end of the spring 12 is connected to the slider 14, and the other end is connected to the baffle 13. The electric telescopic rod 15 is in the middle of the spring 12, and the guide rail 14 is placed in the guide rail 16. The position of the slider 14 can be moved to adapt to PCB boards of different sizes. The second clamp 10 is connected to the baffle 13 through a fixed rod.

[0026] When the position of the second clamp 10 needs to be adjusted, the slider 14 can be slid to make the second clamp 10 reach a suitable position so as to clamp the PCB board. At the same time, the electric telescopic rod 3 15 ensures that the slider 14 will not fail to reach the specified position due to the deformation of the spring 12 when the second clamp 10 moves.

[0027] Embodiment 3

[0028] See also Figure 4-Figure 5 On the basis of Example 1, in order to treat the toxic waste gas generated by welding, a waste gas treatment box 2 is installed on the upper half of the side of the shell 1. A treatment liquid is added to the waste gas treatment box 2 to treat the generated waste gas. An air inlet pipe 22 and an air outlet pipe 20 are installed above the waste gas treatment box 2. The air inlet pipe 22 is inserted into the bottom of the waste gas treatment box 2, and the bottom of the air outlet pipe 20 is not immersed in the treatment liquid. The waste gas treatment box 2 is fixedly connected to the shell 1 through the air inlet pipe, and the other end of the air inlet pipe 22 is connected to the suction machine 19.

[0029] When welding PCB boards, toxic waste gas will be generated. The air suction machine 19 sucks the toxic gas generated by welding into the treatment liquid for treatment, and then discharges it from the outlet pipe 20, which can reduce pollution to the environment.

[0030] In actual use, the PCB board is clamped on the two clamps 10 on one side of the base 7, and then the two clamp bases 11 on the other side are slid on the slide rail to make the two clamps 10 on the other side reach a suitable position to clamp the PCB board. At the same time, the height of the electric telescopic rod 1 3 and the electric telescopic rod 2 4 are adjusted to reach the optimal operating position, and the suction fan 19 is turned on to allow the toxic gas generated by welding to enter the exhaust gas treatment box 2 for treatment. A hair dryer is connected to the other end of the hose 6, and cold air is blown in through the conical nozzle 18 connected to the hose 6 to achieve the purpose of quickly reducing the temperature of the soldering point.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture, characterized in that: The positioning fixture comprises: a housing (1), an electric control slide rail system (5), a second electric telescopic rod (4), and a third electric telescopic rod (15); a lifting and lowering fixing plate (7) is installed on the inner side of the housing (1); a movable fixture base (11) is installed on the fixing plate (7); the top of the second electric telescopic rod (4) is connected to the electric control slide rail system (5); a welding rod (9) is connected below the electric control slide rail system (5); a welding head (17) is connected below the welding rod (9); and an exhaust gas treatment box (2) is fixedly installed on the upper part of the housing (1); The front and rear sides of the inner end of the clamp base (11) are both slidably connected to a second clamp (10), and the inner end of the second clamp (10) is elastically connected to the inner wall of the clamp base (11) via a spring (12).

2. A positioning fixture according to claim 1, characterized in that: The inner end of the shell (1) is provided with sliding tracks (21) on both sides, and the second electric telescopic rod (4) is provided with two, which are respectively slidably connected in the sliding tracks (21) on the left and right sides of the inner end of the shell (1), and the second electric telescopic rod (4) is located between the inner wall of the shell (1) and the fixed plate (7), and the upper end of the second electric telescopic rod (4) is lower than the top of the shell (1).

3. A positioning fixture according to claim 1, characterized in that: Slide rails (8) are provided at the front and rear ends of the left and right sides of the upper end of the fixing plate (7), and each slide rail (8) is slidably connected to a clamp base (11), and the clamp base (11) is U-shaped.

4. A positioning fixture according to claim 2, characterized in that: A guide rail (16) is provided on the inner side wall of the clamp base (11), and a slider (14) is slidably connected to the inner side of the guide rail (16). A spring (12) is fixedly mounted on one end of the slider (14), and a baffle (13) is fixedly mounted on the other side of the spring (12). The outer side of the baffle (13) is fixedly connected to one side of the second clamp (10).

5. A positioning fixture according to claim 1, characterized in that: The top of the waste gas treatment box (2) is connected to an air inlet pipe (22) and an air outlet pipe (20), one end of the air inlet pipe (22) is connected to an air suction machine (19), and the air suction machine (19) is located at the inner end of the outer shell (1).

6. A positioning fixture according to claim 1, characterized in that: The welding head (17) is connected to a pipe, one end of which is connected to a hose (6), the hose (6) is connected to a blower, and the other end of which is connected to a conical nozzle (18).

7. A PCB board welding machine, characterized in that: A positioning fixture comprising any one of claims 1 to 6.

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