Fixing clamp for circuit board welding

Abstract

The utility model discloses a stationary fixture for circuit board welding, and relates to the technical field of stationary fixtures, the stationary fixture comprises an object placing table and a welding device, one side of the top of the object placing table along the length direction is fixedly connected with a motor I, and the other side of the top of the object placing table along the length direction is fixedly connected with a fixed table; according to the utility model, the first motor is started, the first motor drives the lead screw to rotate, the lead screw drives the sliding block to slide, the sliding block drives the two second L-shaped rods to move, the two second L-shaped rods drive the two arc-shaped plates to move, when the two arc-shaped plates abut against the circuit board, the second motor is started, the second motor drives the gear to rotate, and the gear drives the two first L-shaped rods to move. The two first L-shaped rods drive the two limiting columns to move, the two limiting columns abut against the threaded grooves of the lead screws, the fixing clamp is locked, it is avoided that due to factors such as heating or vibration or external force, the fixing clamp is loosened, and therefore the circuit board deviates, and the welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing jigs, in particular to a fixing jig for circuit board welding. Background Technique

[0002] With the development of electronic information technology, circuit boards are widely used in people's production and life. A circuit board is obtained by welding electronic components to the main board of the circuit board. When processing a circuit board, it is necessary to first insert the electronic components into the reserved electronic component mounting holes on the circuit board, and then weld each electronic component on one side of the circuit board.

[0003] For a fixing jig that fixes the circuit board by the rotation of a lead screw, during the welding process, the circuit board must maintain an accurate position and posture to ensure the accuracy and consistency of the welding points. Due to factors such as heat, vibration, or external force during the welding process, the fixing jig loosens, resulting in the displacement of the circuit board and reducing the welding precision of the circuit board. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing jig for circuit board welding to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, a fixing jig for circuit board welding provided by the utility model includes a placing table and a welding device. On one side of the top of the placing table along the length direction, a first motor is fixedly connected. On the other side of the top of the placing table along the length direction, a fixed table is fixedly connected. The output end of the first motor is fixedly connected with a lead screw, and the end of the lead screw far from the first motor is rotatably connected to one side wall of the fixed table. On both sides of the welding device, sliders are symmetrically arranged on the lead screw. Both of the two sliders are slidably connected to the lead screw. At the center of the top of both of the two sliders along the length direction, a first C-shaped rod is fixedly connected. At the center of one side wall of the first C-shaped rod close to the slider, a second motor is fixedly connected. The output end of the second motor is fixedly connected with a gear, and the end of the gear far from the second motor is rotatably connected to the top of the slider. On both sides of the gear, two L-shaped rods with the same structure are meshed. The horizontal ends of the two L-shaped rods are slidably connected to the top of the slider. On the opposite side walls of the vertical ends of the two L-shaped rods, limit columns are fixedly connected. On both sides of the slider close to the vertical ends of the two L-shaped rods, through sliding channels are respectively arranged. The two limit columns are respectively slidably connected inside the two sliding channels.

[0006] Furthermore, at the center of the bottom of both of the two sliders, a second L-shaped rod is fixedly connected. At the end of the two second L-shaped rods far from the slider, arc-shaped plates are fixedly connected.

[0007] Further, a second C-shaped rod is fixedly connected to the center of the top of the placement table along the length direction. A hydraulic cylinder is fixedly connected to the center of one side wall of the second C-shaped rod close to the placement table. A hydraulic rod is sleeved at the center of the bottom of the hydraulic cylinder. The end of the hydraulic rod away from the hydraulic cylinder is fixedly connected to a welding device.

[0008] Further, exhaust ducts are provided on both sides of one end of the second C-shaped rod along the length direction of the placement table. A plurality of spray nozzles evenly distributed at equal intervals are fixedly connected to one side wall of each of the two exhaust ducts close to the lead screw. Air outlet ducts are fixedly connected to one side wall of each of the two exhaust ducts away from the lead screw. The ends of the two air outlet ducts away from the exhaust ducts are fixedly connected to the same air box, and the air box is fixedly connected to the outer side wall of the placement table.

[0009] Further, the opening of the first C-shaped rod faces the slider, and the opening of the second C-shaped rod faces the placement table.

[0010] Further, a raised welding table is provided at the center of the top of the placement table. The center of the welding device is aligned with the center of the welding table. The horizontal plane at the bottom of the welding device is higher than the horizontal plane at the top of the welding table.

[0011] Further, a flexible fireproof material is laid on the side walls of the two arc-shaped plates close to each other.

[0012] Further, the openings of the two arc-shaped plates face the center of the circle of the welding table, and the bottom horizontal plane of the arc-shaped plates is flush with the top horizontal plane of the welding table.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Start the first motor. The first motor drives the lead screw to rotate. The lead screw drives the slider to slide. The slider drives the two second L-shaped rods to move. The two second L-shaped rods drive the two arc-shaped plates to move. When the two arc-shaped plates are in contact with the circuit board, start the second motor. The second motor drives the gear to rotate. The gear drives the two first L-shaped rods to move. The two first L-shaped rods drive the two limit posts to move. The two limit posts are in contact with the thread grooves of the lead screw to lock the fixing fixture, avoiding loosening of the fixing fixture due to factors such as heat, vibration or external force, thereby causing displacement of the circuit board and improving the welding accuracy.

[0015] Start the air box. The air box allows air to enter the exhaust ducts from the air inlet duct. The exhaust ducts blow the air to the welded circuit board through the spray nozzles to cool it and avoid accidental scalding of the operator. Description of the Drawings

[0016] Figure 1 It is a front and side structural schematic diagram of a fixing fixture for circuit board welding;

[0017] Figure 2Schematic diagram of the rear side structure of a fixing fixture for circuit board welding;

[0018] Figure 3 It is Figure 1 The enlarged view of the structure at position A in

[0019] Figure 4 It is Figure 3 The schematic diagram of the internal structure at position B in

[0020] In the figure: 10, placing table; 11, first motor; 12, lead screw; 13, fixed table; 20, slider; 21, first C-shaped rod; 22, second motor; 23, gear; 24, first L-shaped rod; 25, limit post; 26, second L-shaped rod; 27, arc-shaped plate; 30, second C-shaped rod; 31, hydraulic cylinder; 32, hydraulic rod; 33, welder; 40, air box; 41, air outlet pipe; 42, exhaust pipe; 43, nozzle. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , the present invention provides a technical solution: including a placing table 10 and a welder 33. One side of the top of the placing table 10 along the length direction is fixedly connected with a first motor 11, and the other side of the top of the placing table 10 along the length direction is fixedly connected with a fixed table 13. The output end of the first motor 11 is fixedly connected with a lead screw 12. The end of the lead screw 12 far from the first motor 11 is rotatably connected to one side wall of the fixed table 13. Sliders 20 are symmetrically arranged on both sides of the welder 33 on the lead screw 12. Both of the two sliders 20 are slidably connected to the lead screw 12. The centers of the tops of the two sliders 20 along the length direction are fixedly connected with first C-shaped rods 21. The center of one side wall of the first C-shaped rod 21 close to the slider 20 is fixedly connected with a second motor 22. The output end of the second motor 22 is fixedly connected with a gear 23. The side wall of the gear 23 far from the second motor 22 is rotatably connected to the top of the slider 20. The same first L-shaped rods 24 are meshed on both sides of the gear 23. The horizontal ends of the two first L-shaped rods 24 are slidably connected to the top of the slider 20. The opposite side walls of the vertical ends of the two first L-shaped rods 24 are fixedly connected with limit posts 25. The two side walls of the slider 20 close to the vertical ends of the two first L-shaped rods 24 are respectively provided with through sliding channels. The two limit posts 25 are respectively slidably connected to the interiors of the two sliding channels.

[0023] Please refer toFigures 1-4 The present utility model provides a technical solution: at the center of the bottom of each of the two sliders 20, an L-shaped rod two 26 is fixedly connected. At one end of each of the two L-shaped rods two 26 away from the slider 20, an arc-shaped plate 27 is fixedly connected. At the center of the top of the placing table 10 along the length direction, a C-shaped rod two 30 is fixedly connected. At the center of one side wall of the C-shaped rod two 30 close to the placing table 10, a hydraulic cylinder 31 is fixedly connected. At the center of the bottom of the hydraulic cylinder 31, a hydraulic rod 32 is sleeved. At one end of the hydraulic rod 32 away from the hydraulic cylinder 31, a welding device 33 is fixedly connected.

[0024] Please refer to Figures 1-4 The present utility model provides a technical solution: on both sides of one end of the C-shaped rod two 30 along the length direction of the placing table 10, exhaust pipes 42 are provided. On one side wall of each of the two exhaust pipes 42 close to the lead screw 12, a plurality of nozzles 43 are fixedly connected at equal intervals. On one side wall of each of the two exhaust pipes 42 away from the lead screw 12, an air outlet pipe 41 is fixedly connected. One end of each of the two air outlet pipes 41 away from the exhaust pipe 42 is fixedly connected to the same air box 40. The air box 40 is fixedly connected to the outer side wall of the placing table 10. The C-shaped rod one 21 is arranged with its opening facing the slider 20, and the C-shaped rod two 30 is arranged with its opening facing the placing table 10.

[0025] Please refer to Figures 1-4 The present utility model provides a technical solution: at the center of the top of the placing table 10, there is a raised welding table. The center of the welding device 33 is aligned with the center of the welding table. The horizontal plane at the bottom of the welding device 33 is higher than the horizontal plane at the top of the welding table. On one side wall of the two arc-shaped plates 27 close to each other, a flexible fireproof material is laid. The openings of the two arc-shaped plates 27 face the center of the welding table. The bottom horizontal plane of the arc-shaped plate 27 is flush with the top horizontal plane of the welding table.

[0026] Working principle: When in use, start the first motor 11. The first motor 11 drives the lead screw 12 to rotate. The lead screw 12 drives the two sliders 20 to slide. The two sliders 20 drive the two L-shaped rods two 26 to move. The two L-shaped rods two 26 drive the two arc-shaped plates 27 to move, so as to clamp and fix the circuit board.

[0027] Start the second motor 22. The second motor 22 drives the gear 23 to rotate. The gear 23 drives the two L-shaped rods one 24 to move. The two L-shaped rods one 24 drive the two limit posts 25 to move. The two limit posts 25 abut against the thread grooves of the lead screw 12 to lock the fixing fixture.

[0028] Start the hydraulic cylinder 31. The hydraulic cylinder 31 drives the hydraulic rod 32 to move downward. The hydraulic rod 32 drives the welding device 33 to move downward to weld the circuit board.

[0029] Start the bellows 40, and through the bellows 40, make the wind enter the exhaust pipe 42 from the air outlet pipe 41. The exhaust pipe 42 blows the wind to the circuit board being welded through the nozzle 43 to cool it down.

[0030] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teachings of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A fixing jig for circuit board welding, comprising a placing table (10) and a soldering tool (33), characterized in that: One side of the top of the storage table (10) along the length direction is fixedly connected with a first motor (11), and the other side of the top of the storage table (10) along the length direction is fixedly connected with a fixed table (13). The output end of the first motor (11) is fixedly connected with a lead screw (12). The end of the lead screw (12) far from the first motor (11) is rotatably connected to one side wall of the fixed table (13). Sliders (20) are symmetrically arranged on both sides of the welding device (33) on the lead screw (12). Both of the two sliders (20) are slidably connected to the lead screw (12). At the center of the top of both of the two sliders (20) along the length direction, a first C-shaped rod (21) is fixedly connected. At the center of one side wall of the first C-shaped rod (21) close to the slider (20), a second motor (22) is fixedly connected. The output end of the second motor (22) is fixedly connected with a gear (23). The side wall of the gear (23) far from the second motor (22) is rotatably connected to the top of the slider (20). On both sides of the gear (23), first L-shaped rods (24) with the same structure are meshed. The horizontal ends of the two first L-shaped rods (24) are slidably connected to the top of the slider (20). On the side walls of the vertical ends of the two first L-shaped rods (24) facing each other, limit columns (25) are fixedly connected. On both sides of the slider (20) close to the vertical ends of the two first L-shaped rods (24), through sliding channels are respectively arranged. The two limit columns (25) are respectively slidably connected inside the two sliding channels.

2. The fixed fixture for circuit board welding according to claim 1, characterized in that: At the center of the bottom of both of the two sliders (20), second L-shaped rods (26) are fixedly connected. The ends of the two second L-shaped rods (26) far from the sliders (20) are fixedly connected with arc-shaped plates (27).

3. The fixed fixture for circuit board welding according to claim 1, characterized in that: At the center of the top of the storage table (10) along the length direction, a second C-shaped rod (30) is fixedly connected. At the center of one side wall of the second C-shaped rod (30) close to the storage table (10), a hydraulic cylinder (31) is fixedly connected. At the center of the bottom of the hydraulic cylinder (31), a hydraulic rod (32) is sleeved. The end of the hydraulic rod (32) far from the hydraulic cylinder (31) is fixedly connected with a welding device (33).

4. The fixed jig for circuit board welding according to claim 3, characterized in that: On both sides of one end of the second C-shaped rod (30) along the length direction of the storage table (10), exhaust air pipes (42) are respectively arranged. On one side wall of both of the two exhaust air pipes (42) close to the lead screw (12), a plurality of spray nozzles (43) are fixedly connected at equal intervals. On one side wall of both of the two exhaust air pipes (42) far from the lead screw (12), air outlet pipes (41) are fixedly connected. The ends of the two air outlet pipes (41) far from the exhaust air pipes (42) are fixedly connected with the same air box (40). The air box (40) is fixedly connected to the outer side wall of the storage table (10).

5. The fixed fixture for circuit board soldering according to claim 1, characterized in that: The opening of the first C-shaped rod (21) faces the slider (20), and the opening of the second C-shaped rod (30) faces the storage table (10).

6. The fixed fixture for circuit board welding according to claim 1, characterized in that: At the center of the top of the storage table (10), a raised welding table is arranged. The center of the welding device (33) is aligned with the center of the welding table. The horizontal plane at the bottom of the welding device (33) is higher than the horizontal plane at the top of the welding table.

7. The fixed fixture for circuit board welding according to claim 2, characterized in that: On the side walls of the two arc-shaped plates (27) close to each other, flexible fireproof materials are laid.

8. The fixed fixture for circuit board soldering according to claim 2, wherein: The openings of the two arc-shaped plates (27) are arranged towards the center of the welding table, and the bottom horizontal plane of the arc-shaped plate (27) is flush with the top horizontal plane of the welding table.

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