Circuit board welding clamp

Abstract

The utility model discloses a circuit board welding clamp which comprises a base, supporting rods are installed on the base, a lifting mechanism is installed between the supporting rods, the top ends of the supporting rods are connected with an operation table, a fixing seat is installed on the operation table, a displacement mechanism is installed on the fixing seat, and the displacement mechanism is connected with the lifting mechanism. And a connecting plate is mounted on one side of the displacement mechanism. During actual use, according to the size of the circuit board, the circuit board is placed on the clamping frame, the displacement motor is started, the driving gear is driven, the sleeve is driven through the driven gear, the threaded rod is driven to move, then the clamping frame is driven to move through the guide rod, the handle is pulled, the pressing plate is driven to move, and the circuit board is fixed. The rubber pad can prevent the outer surface of the circuit board from being damaged by overlarge pressure, and after one surface is welded, the handle is rotated to drive the clamping frame at one end of the rotating shaft and drive the circuit board to turn over, so that welding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board welding, in particular to a circuit board welding fixture. Background Art

[0002] According to the number of layers, circuit boards can be divided into three major categories: single-sided boards, double-sided boards, and multi-layer circuit boards. The first is a single-sided board. On the most basic PCB, the parts are concentrated on one side and the wires are concentrated on the other side. Because the wires only appear on one side, this type of PCB is called a single-sided circuit board. Single-sided boards are usually simple to make and low in cost. When soldering the circuit board, a soldering fixture is needed to clamp and fix the circuit board.

[0003] The Chinese patent application with application number CN202120131794.0 discloses a PCB circuit board welding fixture, including a substrate, the upper surface of the substrate is slidably connected to multiple groups of support mechanisms through multiple groups of sliding groups, a heat dissipation cavity is formed between the multiple groups of support mechanisms, the support mechanism includes a base and a support head, the base and the support head are fixedly connected by a first spring, the upper part of the support head is fixedly connected with a first rubber pad, and the left and right sides of the upper part of the substrate are fixedly connected with multiple groups of fixing columns. The utility model relates to the field of fixture technology. The PCB circuit board welding fixture utilizes the sliding group to stagger the welding holes on the PCB board with the support mechanism, and the PCB board is placed above the L-shaped card seat. The first rubber pad connected to the base supports the bottom of the PCB board, and the rotating pressure plate causes the second rubber pad to press the upper edge of the PCB board, which is firmly and stably fixed to avoid loosening between the PCB board and the fixture, and is not easy to damage the PCB board, thereby ensuring the welding effect of the PCB board.

[0004] However, the existing welding fixture still has some defects. During welding, the circuit board cannot be turned over after welding one side. The circuit board needs to be disassembled, turned over and clamped again, which reduces work efficiency and has poor practicality. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a circuit board welding fixture, the purpose of which is to solve the problems that during welding, the circuit board cannot be turned over after one side is welded, and the circuit board needs to be disassembled, turned over and clamped again, which reduces work efficiency and has poor practicality.

[0006] In order to achieve the above-mentioned utility model object, the technical solution adopted by the utility model is: a circuit board welding fixture, including a base, a support rod is installed on the base, a lifting mechanism is installed between the support rods, the top of the support rod is connected to an operating table, a fixed seat is installed on the operating table, a displacement mechanism is installed on the fixed seat, a connecting plate is installed on one side of the displacement mechanism, a clamping mechanism is rotatably connected to one side of the connecting plate, and a rotating mechanism is connected to the side of the upper surface of the operating table away from the fixed seat;

[0007] The displacement mechanism includes a displacement motor installed on the upper surface of the operating table, the output end of the displacement motor is connected to a driving gear, a sleeve is installed on one side of the fixed seat, a driven gear is installed on the sleeve, the driven gear is meshed with the driving gear, a threaded rod is connected to the sleeve, one end of the threaded rod is fixedly connected to a connecting plate, and a guide rod is connected above the threaded rod.

[0008] Furthermore, the clamping mechanism includes a clamping frame installed at one end of the connecting plate, a fixed box is installed on the clamping frame, a pull rod is sleeved on the fixed box, a limit plate is installed on the pull rod, a telescopic spring is sleeved on the pull rod, the bottom end of the pull rod is connected to a pressure plate, the bottom end of the pressure plate is connected to a rubber pad, and the top end of the pull rod is connected to a handle.

[0009] Furthermore, the rotating mechanism includes a mounting base installed on the upper surface of the operating table, a rotating shaft is installed on the mounting base, one end of the rotating shaft is connected to a handle, and the other end of the rotating shaft is connected to a clamping mechanism 2, and the clamping mechanism 1 has the same structure as the clamping mechanism 2.

[0010] Furthermore, the lifting mechanism includes a lifting motor installed inside the base, the output end of the lifting motor is connected to a screw rod, a lifting rod is installed on the lower surface of the operating table, the top of the screw rod is threadedly connected to the lifting rod, a slide groove is provided on the slide groove, a slider is installed on the slider, an articulated seat 1 is installed on the slider, an articulated seat 2 is installed on the upper surface of the base, and a movable rod is hinged between the articulated seat 1 and the articulated seat 2.

[0011] Furthermore, a support seat is installed on the lower surface of the base.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a circuit board welding fixture. When in actual use, the circuit board is placed on a clamping frame according to the size of the circuit board, the displacement motor is started to drive the driving gear, the sleeve is driven by the driven gear, the threaded rod is driven to move, and then the clamping frame is driven to move through the guide rod, the handle is pulled, the pressure plate is driven to move, and the circuit board is fixed. The rubber pad can prevent excessive pressure from damaging the outer surface of the circuit board. After welding one side, the handle is turned to drive the clamping frame at one end of the rotating shaft, and the circuit board is driven to flip over, which is convenient for welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of a circuit board welding fixture of the utility model;

[0015] Figure 2 A circuit board welding fixture of the utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 A circuit board welding fixture of the utility model Figure 1 Enlarged view of point B in the middle.

[0017] Reference table of reference numerals:

[0018] 1. Base; 2. Support rod; 3. Lifting mechanism; 301. Lifting motor; 302. Screw rod; 303. Lifting rod; 304. Slide groove; 305. Slider; 306. Articulated seat 1; 307. Articulated seat 2; 308. Movable rod; 4. Operating table; 5. Fixed seat; 6. Displacement mechanism; 601. Displacement motor; 602. Driving gear; 603. Sleeve; 604. Driven gear; 605. Threaded rod; 606. Guide rod; 7. Connecting plate; 8. Clamping mechanism 1; 801. Fixed box; 802. Pull rod; 803. Limiting plate; 804. Pressing plate; 805. Rubber pad; 806. Handle; 807. Clamping frame; 808. Telescopic spring; 9. Rotating mechanism; 901. Mounting seat; 902. Rotating shaft; 903. Handle; 904. Clamping mechanism 2; 10. Support seat. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0020] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figures 1 to 3 As shown, a circuit board welding fixture comprises a base 1, a support rod 2 is mounted on the base 1, a lifting mechanism 3 is mounted between the support rods 2, an operating table 4 is connected to the top of the support rod 2, a fixed seat 5 is mounted on the operating table 4, a displacement mechanism 6 is mounted on the fixed seat 5, a connecting plate 7 is mounted on one side of the displacement mechanism 6, a clamping mechanism 8 is rotatably connected to one side of the connecting plate 7, and a rotating mechanism 9 is connected to the side of the upper surface of the operating table 4 away from the fixed seat 5;

[0023] The displacement mechanism 6 includes a displacement motor 601 installed on the upper surface of the operating table 4, the output end of the displacement motor 601 is connected to the driving gear 602, a sleeve 603 is installed on one side of the fixed seat 5, a driven gear 604 is installed on the sleeve 603, the driven gear 604 is meshed with the driving gear 602, a threaded rod 605 is connected to the sleeve 603, one end of the threaded rod 605 is fixedly connected to the connecting plate 7, and a guide rod 606 is connected above the threaded rod 605.

[0024] Specifically, in actual use, the circuit board is placed on the clamping frame 807 according to its size, and the displacement motor 601 is started to drive the driving gear 602, which drives the sleeve 603 through the driven gear 604, drives the threaded rod 605 to move, and then drives the clamping frame 807 to move through the guide rod 606.

[0025] The clamping mechanism 8 includes a clamping frame 807 installed at one end of the connecting plate 7, a fixed box 801 is installed on the clamping frame 807, a pull rod 802 is sleeved on the fixed box 801, a limit plate 803 is installed on the pull rod 802, a telescopic spring 808 is sleeved on the pull rod 802, the bottom end of the pull rod 802 is connected to a pressure plate 804, the bottom end of the pressure plate 804 is connected to a rubber pad 805, and the top end of the pull rod 802 is connected to a handle 806.

[0026] Specifically, the handle 806 is pulled to move the pressure plate 804 to fix the circuit board, and the rubber pad 805 can prevent the outer surface of the circuit board from being damaged by excessive pressure.

[0027] The rotating mechanism 9 includes a mounting base 901 mounted on the upper surface of the operating table 4, a rotating shaft 902 is mounted on the mounting base 901, one end of the rotating shaft 902 is connected to a handle 903, and the other end of the rotating shaft 902 is connected to a clamping mechanism 2 904, and the clamping mechanism 1 8 has the same structure as the clamping mechanism 2 904.

[0028] Specifically, the handle 903 is rotated to drive the clamping frame 807 at one end of the rotating shaft 902 to drive the circuit board to flip over, so as to facilitate welding.

[0029] The lifting mechanism 3 includes a lifting motor 301 installed inside the base 1, the output end of the lifting motor 301 is connected to a screw rod 302, a lifting rod 303 is installed on the lower surface of the operating table 4, the top of the screw rod 302 is threadedly connected to the lifting rod 303, a slide groove 304 is provided on the lower surface of the operating table 4, a slider 305 is installed on the slide groove 304, an articulated seat 1 306 is installed on the slider 305, an articulated seat 2 307 is installed on the upper surface of the base 1, and a movable rod 308 is hinged between the articulated seat 1 306 and the articulated seat 2 307.

[0030] Specifically, the lifting motor 301 is started to drive the screw rod 302 to rotate, and the operating table 4 is driven to move, so that the height of the welding fixture can be adjusted to facilitate welding by workers of different heights.

[0031] A support base 10 is installed on the lower surface of the base 1 .

[0032] The working principle of the present invention is that in actual use, according to the size of the circuit board, the circuit board is placed on the clamping frame 807, the displacement motor 601 is started, the driving gear 602 is driven, the sleeve 603 is driven through the driven gear 604, the threaded rod 605 is driven to move, and then the clamping frame 807 is driven to move through the guide rod 606, the handle 806 is pulled, the pressure plate 804 is driven to move, and the circuit board is fixed. The rubber pad 805 can prevent excessive pressure from damaging the outer surface of the circuit board. After welding one side, the handle 903 is turned to drive the clamping frame 807 at one end of the rotating shaft 902, and the circuit board is turned over to facilitate welding.

[0033] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A circuit board welding fixture, characterized in that: The invention comprises a base (1), a support rod (2) is mounted on the base (1), a lifting mechanism (3) is mounted between the support rods (2), the top end of the support rod (2) is connected to an operating table (4), a fixed seat (5) is mounted on the operating table (4), a displacement mechanism (6) is mounted on the fixed seat (5), a connecting plate (7) is mounted on one side of the displacement mechanism (6), a clamping mechanism (8) is rotatably connected to one side of the connecting plate (7), and a rotating mechanism (9) is connected to the side of the upper surface of the operating table (4) away from the fixed seat (5); The displacement mechanism (6) comprises a displacement motor (601) mounted on the upper surface of the operating table (4); the output end of the displacement motor (601) is connected to a driving gear (602); a sleeve (603) is mounted on one side of the fixing seat (5); a driven gear (604) is mounted on the sleeve (603); the driven gear (604) and the driving gear (602) are meshed; a threaded rod (605) is connected to the sleeve (603); one end of the threaded rod (605) is fixedly connected to a connecting plate (7); and a guide rod (606) is connected above the threaded rod (605).

2. A circuit board welding fixture according to claim 1, characterized in that: The clamping mechanism (8) comprises a clamping frame (807) installed at one end of the connecting plate (7), a fixing box (801) is installed on the clamping frame (807), a pull rod (802) is sleeved on the fixing box (801), a limiting plate (803) is installed on the pull rod (802), a telescopic spring (808) is sleeved on the pull rod (802), the bottom end of the pull rod (802) is connected to a pressure plate (804), the bottom end of the pressure plate (804) is connected to a rubber pad (805), and the top end of the pull rod (802) is connected to a handle (806).

3. A circuit board welding fixture according to claim 1, characterized in that: The rotating mechanism (9) comprises a mounting seat (901) mounted on the upper surface of the operating table (4); a rotating shaft (902) is mounted on the mounting seat (901); one end of the rotating shaft (902) is connected to a handle (903); the other end of the rotating shaft (902) is connected to a clamping mechanism 2 (904); the clamping mechanism 1 (8) and the clamping mechanism 2 (904) have the same structure.

4. A circuit board welding fixture according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting motor (301) installed inside the base (1), the output end of the lifting motor (301) is connected to a screw rod (302), a lifting rod (303) is installed on the lower surface of the operating table (4), the top end of the screw rod (302) is threadedly connected to the lifting rod (303), a sliding groove (304) is provided on the lower surface of the operating table (4), a slider (305) is installed on the sliding groove (304), an articulated seat 1 (306) is installed on the slider (305), an articulated seat 2 (307) is installed on the upper surface of the base (1), and a movable rod (308) is hinged between the articulated seat 1 (306) and the articulated seat 2 (307).

5. A circuit board welding fixture according to claim 1, characterized in that: A support seat (10) is installed on the lower surface of the base (1).

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