Circuit board welding clamp

Abstract

The utility model relates to a circuit board welding clamp which comprises a base, a rectangular pipe is arranged at the top of the base, a rectangular rod is arranged in the rectangular pipe, a lifting mechanism for driving the rectangular rod to move up and down is arranged on the rectangular pipe, a screw pipe is horizontally arranged at the top end of the rectangular rod, and a stud is in threaded connection with the interior of the screw pipe. A right-angled n-shaped frame is arranged at the tail end of the stud, a supporting mechanism for supporting the right-angled n-shaped frame is arranged on the rectangular rod, a limiting plate is arranged at the opening end of the right-angled n-shaped frame, mounting openings allowing the tail end of the right-angled n-shaped frame to penetrate through are formed in the two ends of the limiting plate, and the limiting plate is driven by an electric push rod on the right-angled n-shaped frame. And strip-shaped grooves for accommodating the tail ends of the circuit boards are correspondingly formed in one side wall in the opening of the [-shaped frame and the side wall of the limiting plate. The height and orientation of the circuit board can be adjusted, so that the use requirement during welding is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of circuit board processing, in particular to a circuit board welding clamp. BACKGROUND

[0002] The welding, assembling and debugging of electronic circuit line circuit boards play an important role in electronic technology engineering, various circuit components are connected to the circuit board through welding, and a set of special behavior specifications are required for the welding process of such circuit components, and the circuit board needs to be fixed during the welding process.

[0003] At present, in the process of welding the circuit board, the circuit board is first fixed by a clamp, and then the front surface is welded, and when the back surface of the circuit board needs to be welded, the clamp needs to be opened to turn over the circuit board, which is too cumbersome. SUMMARY

[0004] The purpose of the present application is to provide a circuit board welding clamp.

[0005] The technical problem of the present application is mainly solved by the following technical scheme:

[0006] A circuit board welding clamp, comprising a base, a rectangular tube is arranged on the top of the base, a rectangular rod is arranged in the rectangular tube, a lifting mechanism for driving the rectangular rod to move up and down is arranged on the rectangular tube, a spiral pipe is horizontally arranged at the top end of the rectangular rod, a threaded stud is screwed in the spiral pipe, a U-shaped frame is arranged at the end of the threaded stud, a supporting mechanism for supporting the U-shaped frame is arranged on the rectangular rod, a limiting plate is arranged at the opening end of the U-shaped frame, mounting openings for the ends of the U-shaped frame to pass through are arranged at both ends of the limiting plate, the limiting plate is driven by an electric push rod on the U-shaped frame, and a strip-shaped groove for accommodating the end of the circuit board is arranged on the side wall of the opening of the U-shaped frame and the side wall of the limiting plate.

[0007] Preferably, ventilation channels are arranged in the two horizontal end side walls of the U-shaped frame, the ventilation channels are connected with an air extractor through a hose, air outlet holes communicating with the ventilation channels are arranged on the inner side wall of the U-shaped frame, and the strip-shaped groove is arranged on the vertical end inner side wall of the U-shaped frame.

[0008] Preferably, the supporting mechanism comprises a square hole arranged on the side wall of the rectangular rod, a cross rod matched with the square hole is arranged in the square hole, a convex seat abutting against the side wall of the rectangular rod is arranged at one end of the cross rod, a magnetic seat located below the U-shaped frame is arranged at the other end of the cross rod, and the magnetic seat is located at the bottom of the vertical end of the U-shaped frame and is magnetically fixed thereto.

[0009] Preferably, the lifting mechanism comprises a rectangular opening arranged on the lower half of the rectangular rod, a gear rack arranged on one side of the rectangular opening, a gear wheel arranged in the rectangular opening and engaged with the gear rack, a drive shaft arranged on the gear wheel and extending to the outside of the rectangular tube, a bearing arranged in the side wall of the rectangular tube and fixing the drive shaft, a rotating disc arranged at the end of the drive shaft outside the rectangular tube, a plurality of groups of U-shaped notches arranged radially on the outer arc wall of the rotating disc, a positioning rod made of magnet material arranged in the uppermost U-shaped notch, mounting ears arranged on the outer wall of the rectangular tube on both sides of the positioning rod, and a rotating shaft arranged at one end of the positioning rod and penetrating through the corresponding mounting ear.

[0010] Preferably, the electric push rod is arranged on the outer side wall of the corresponding horizontal end of the U-shaped frame.

[0011] The present application has the advantages that the height of the circuit board and the orientation of its upper and lower end faces can be adjusted to meet the requirements of welding. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the present application;

[0013] Figure 2 is a sectional view of the present application;

[0014] Figure 3 is a structural schematic diagram of the rotating disc in the present application;

[0015] Figure 4 is a sectional view of the rectangular tube in the present application.

[0016] In the figure: 1, base; 2, rectangular tube; 3, rectangular rod; 4, lifting mechanism; 41, rectangular opening; 42, gear rack; 43, gear wheel; 44, drive shaft; 45, rotating disc; 46, U-shaped notch; 47, positioning rod; 48, mounting ear; 49, rotating shaft; 5, screw tube; 6, stud; 7, U-shaped frame; 8, supporting mechanism; 81, square hole; 82, cross rod; 83, convex seat; 84, magnetic seat; 9, limiting plate; 10, mounting opening; 11, electric push rod; 12, strip-shaped slot; 13, air outlet. DETAILED DESCRIPTION

[0017] The technical solutions of the present application will be further specifically described below in combination with the drawings.

[0018] A circuit board welding clamp, comprising a base 1, a rectangular tube 2 arranged on the top of the base 1, a rectangular rod 3 arranged in the rectangular tube 2, a lifting mechanism 4 arranged on the rectangular tube 2 and used for driving the rectangular rod 3 to move up and down, a screw pipe 5 horizontally arranged at the top end of the rectangular rod 3, a threaded stud 6 screwed in the screw pipe 5, a H-shaped frame 7 arranged at the end of the threaded stud 6, and a supporting mechanism 8 arranged on the rectangular rod 3 and used for supporting the H-shaped frame 7.

[0019] A limiting plate 9 is arranged at the open end of the H-shaped frame 7, mounting openings 10 are arranged at the two ends of the limiting plate 9 and used for the end of the H-shaped frame 7 to pass through, the limiting plate 9 is driven by an electric push rod 11 arranged on the H-shaped frame 7, the electric push rod 11 is arranged on the outer side wall of the corresponding horizontal end of the H-shaped frame 7, and a strip-shaped slot 12 used for accommodating the end of the circuit board is correspondingly arranged on the side wall in the opening of the H-shaped frame 7 and the side wall of the limiting plate 9.

[0020] In the embodiment, ventilation channels are arranged in the side walls of the two horizontal ends of the H-shaped frame 7, the ventilation channels are connected with an air extractor through a hose, air outlet holes 13 in communication with the ventilation channels are arranged on the inner side wall of the H-shaped frame 7, and the strip-shaped slot 12 is arranged on the inner side wall of the vertical end of the H-shaped frame 7.

[0021] The supporting mechanism 8 comprises a square hole 81 arranged on the side wall of the rectangular rod 3, a cross rod 82 matched with the square hole 81 is arranged in the square hole 81, a convex seat 83 abutting against the side wall of the rectangular rod 3 is arranged at one end of the cross rod 82, a magnetic seat 84 located below the H-shaped frame 7 is arranged at the other end of the cross rod 82, and the magnetic seat 84 is located at the bottom of the vertical end of the H-shaped frame 7 and is fixedly connected with the H-shaped frame 7 through magnetic connection.

[0022] The lifting mechanism 4 comprises a rectangular opening 41 arranged on the side wall of the lower half of the rectangular rod 3, a rack 42 is arranged on one side in the rectangular opening 41, a gear 43 engaged with the rack 42 is arranged in the rectangular opening 41, a driving shaft 44 extending to the outside of the rectangular tube 2 is arranged on the gear 43, a bearing for fixing the driving shaft 44 is arranged in the side wall of the rectangular tube 2, a turntable 45 is arranged at the end of the driving shaft 44 outside the rectangular tube 2, a plurality of groups of U-shaped notches 46 are radially arranged on the outer arc wall of the turntable 45, a positioning rod 47 made of magnet material is arranged in the uppermost U-shaped notch 46, mounting ears 48 are arranged on the outer wall of the rectangular tube 2 and located on the two sides of the positioning rod 47, and a rotating shaft 49 passing through the corresponding mounting ear 48 is arranged at one end of the positioning rod 47.

[0023] The use method of the present application: when in use, the mounting opening 10 on the limiting plate 9 is driven by the electric push rod 11 to slide outward at both ends of the bracket 7, at this time, the circuit board is placed into the opening of the bracket 7 on the right side of the limiting plate 9, and the right end is inserted into the strip-shaped slot 12 on the side wall of the bracket 7 for fixation, wherein the electric push rod 11 drives the right movement of the limiting plate 9, so that the strip-shaped slot 12 on the side wall of the limiting plate 9 is buckled on the left end of the circuit board, thereby realizing the clamping and fixation of the circuit board by the two groups of strip-shaped slots 12, at this time, people can perform welding and other work on the top end face of the circuit board, and at the same time, cold air flow can be introduced into the ventilation channel through the air extractor and the hose and sprayed out from the air outlet hole 13 during the welding work, thereby cooling the welding end face of the circuit board, and ensuring the safety during welding;

[0024] When different end faces of the circuit board need to be welded, the horizontal rod 82 is pulled to the right to make it slide in the square hole 81, so that the magnetic seat 84 is separated from the bottom of the bracket 7, and then, under the influence of losing the support of the supporting mechanism 8, the bracket 7 can be rotated to drive the circuit board fixed thereto to rotate, at this time, the bracket 7 also drives the stud 6 to rotate in the screw pipe 5, thereby adjusting the orientation of the bracket 7 and the circuit board fixed thereto, in this process, the bracket 7 only rotates 180 degrees in forward and reverse directions, preventing it from rotating infinitely in only one direction and causing the wires or pipelines connected with the ventilation channel and the electric push rod 11 to be pulled and broken, when the bracket 7 drives the circuit board to overturn, the horizontal rod 82 drives the magnetic seat 84 to displace to the bottom of the bracket 7 and magnetically fix it, at this time, the side wall of the square hole 81 abuts against the side wall of the horizontal rod 82 to prevent the horizontal rod 82 and the magnetic seat 84 from rotating, and the magnetic seat 84 abuts against the bottom of the bracket 7 below the stud 6 to prevent the bracket 7 from driving the stud 6 to rotate in the screw pipe 5, thereby realizing the fixation of the orientation of the bracket 7 and the circuit board.

[0025] When the height of the circuit board needs to be adjusted, the positioning rod 47 is rotated upward to rotate counterclockwise around the pivot 49, so that the top end is magnetically connected with the outer wall of the rectangular tube 2, at this time, since the positioning rod 47 cannot be clamped in the U-shaped notch 46, the rotating disc 45 can be rotated to drive the gear 43 to rotate on the rack 42 through the driving shaft 44, thereby driving the rack 42 and the rectangular rod 3 to move up and down in the rectangular tube 2, so as to adjust the height of the rectangular frame 7 and the circuit board, when the position adjustment of the rectangular frame 7 and the circuit board is completed, the limiting rod 47 is rotated downward to separate from the outer wall of the rectangular tube 2, and it also rotates clockwise around the pivot 49, at this time, the limiting rod 47 is clamped into the uppermost U-shaped notch 46, thereby indirectly fixing the gear 43, preventing the rack 42 from driving the gear 43 to rotate under the extrusion of the gravity of the rectangular rod 3 and other components, and thereby fixing the height of the rectangular rod 3.

[0026] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A circuit board soldering fixture, comprising a base, characterized in that: The base has a rectangular tube at its top, a rectangular rod inside the tube, and a lifting mechanism on the tube to drive the rod up and down. A threaded tube is horizontally attached to the top of the rod, and a stud is screwed into the tube. A U-shaped frame is attached to the end of the stud. A support mechanism on the rod supports the U-shaped frame. A limiting plate is provided at the opening of the U-shaped frame. The limiting plate has mounting openings at both ends for the end of the U-shaped frame to pass through. The limiting plate is driven by an electric push rod on the U-shaped frame. A strip groove for accommodating the end of the circuit board is provided on one side wall of the opening of the U-shaped frame and on the side wall of the limiting plate.

2. The circuit board welding fixture according to claim 1, characterized in that: Ventilation channels are provided in the two horizontal side walls of the shaped frame. The ventilation channels are connected to the exhaust fan through flexible hoses. Air outlets communicating with the ventilation channels are provided on the inner side wall of the shaped frame. The strip groove is provided on the inner side wall of the vertical end of the shaped frame.

3. The circuit board welding fixture according to claim 1, characterized in that: The support mechanism includes a square hole on the side wall of a rectangular rod, a crossbar adapted to the square hole is provided in the square hole, a protrusion abutting against the side wall of the rectangular rod is provided at one end of the crossbar, and a magnetic seat located below the C-shaped frame is provided at the other end of the crossbar. The magnetic seat is located at the bottom of the vertical end of the C-shaped frame and is magnetically fixed to it.

4. A circuit board welding fixture according to claim 1, characterized in that: The lifting mechanism includes a rectangular opening on the lower half of the side wall of a rectangular rod. A rack is provided on one side of the rectangular opening, and a gear meshing with the rack is provided inside the rectangular opening. A drive shaft extending to the outside of the rectangular tube is provided on the gear. A bearing for fixing the drive shaft is provided in the side wall of the rectangular tube. A turntable is provided at the end of the drive shaft on the outside of the rectangular tube. Several sets of U-shaped notches are radially provided on the outer arc wall of the turntable. A positioning rod made of magnetic material is provided in the uppermost U-shaped notch. Mounting ears are provided on both sides of the positioning rod on the outer wall of the rectangular tube. A rotating shaft passing through the corresponding mounting ear is provided at one end of the positioning rod.

5. A circuit board welding fixture according to claim 1, characterized in that: The electric push rod is installed on the outer wall of the corresponding horizontal end of the C-shaped frame.

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