Multi-station parallel test circuit board jig

Abstract

The utility model discloses a multi-station parallel test circuit board jig which comprises a jig base, a conveying belt is arranged in the jig base through conveying wheels, circuit board positioning seats are transversely arranged on the conveying belt side by side through connecting seats, and two first sliding blocks are arranged on the circuit board positioning seats through opposite threads of screws. A first sliding block is arranged in the jig base through a conveying wheel, a first side face clamping plate is arranged on the first sliding block through a bottom supporting seat, a second side face clamping plate is arranged on the bottom supporting seat through an elastic telescopic rod, a second sliding block is arranged on the jig base through a vertical frame and a lead screw, and a welding spot tester is arranged below the second sliding block through an air cylinder. The circuit board positioning devices are transversely arranged on the conveying belt side by side through the connecting bases and used for transversely clamping and fixing a plurality of to-be-tested circuit boards, then the to-be-tested circuit boards are conveyed to the position below the welding spot tester through the conveying belt, the welding spot tester is driven by the lead screw to transversely move to carry out welding spot detection processing on the circuit boards side by side one by one, and the detection efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board test technical field, concretely is a kind of multi-station parallel test circuit board fixture. BACKGROUND

[0002] Printed circuit board needs to be detected before leaving factory, to judge whether there is empty welding and false welding and other defect problems when welding, the welding point detection of existing circuit board is still directly detected by manual, by direct observation or power-on judging connection signal and the like mode, this detection mode has the problems such as time-consuming and labor-consuming and low efficiency.

[0003] Prior art application number for a kind of circuit board welding point detection device in 202322094945.1, including box body module and detection module, the detection module is installed in the box body module, the box body module includes detection box body unit and main control box body unit, the detection box body unit is located above the main control box body unit and is fixedly connected with the main control box body unit, it is automatically optical welding point detection to circuit board by box body module and detection module, to judge whether circuit board has common defect, it has the advantages of stable structure, high efficiency and practicality etc., but, cannot be continuously fed and loaded for the purpose of testing, lead to the problem of low test efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of multi-station parallel test circuit board fixture, to solve the problem of low test efficiency caused by the purpose of continuous feeding and loading for testing in prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of multi-station parallel test circuit board fixture, including fixture base, the upper part in the fixture base is provided with conveyor belt by conveyor wheel, the upper side of the conveyor belt is provided with circuit board positioning seat by lateral parallel connection seat, the upper side of the circuit board positioning seat is provided with two first sliding blocks by screw rod opposite thread, and the first sliding block upper end is provided with first side clamping plate by bottom support, the bottom support is provided with second side clamping plate by elastic telescopic rod, the upper side of the fixture base is provided with second sliding block by stand and screw rod, and the second sliding block lower side is provided with welding point tester by air cylinder.

[0006] Further, one end of the conveyor wheel of the conveyor belt is connected with transmission motor by belt flywheel set transmission, and the transmission motor is fixedly installed on the inner wall of the fixture base.

[0007] Further, the circuit board positioning seat is provided with three groups laterally in parallel, and the circuit board positioning seat is provided with multiple groups longitudinally.

[0008] Further, the first side clamping plate is provided with elastic clamping piece on one side, and the elastic clamping piece is provided with multiple equidistantly.

[0009] Further, the elastic telescopic rod comprises a supporting barrel, an inner supporting rod is elastically slidably arranged in the supporting barrel through a limiting plate and a spring, and one end of the inner supporting rod is vertically and slidably connected with the second side clamping plate.

[0010] Further, the second side clamping plate is internally provided with a limiting sliding hole, and one end of the inner supporting rod is slidably arranged in the limiting sliding hole through a limiting sliding block.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、 the utility model discloses a fixture base is equipped with the conveyer belt through the conveyer wheel, and the circuit board positioning is horizontally arranged in parallel on the conveyer belt through the connecting seat and is used for clamping and fixing multiple to be tested horizontally, then is conveyed to the welding spot testing appearance below through the conveyer belt, utilizes the screw drive welding spot testing appearance horizontal shift and carries out the welding spot detection processing to the parallel multiple circuit boards one by one, realizes the purpose of continuous conveying feeding test, and the detection efficiency is higher.

[0013] 2、 the utility model discloses moreover that the two first sliding blocks are oppositely arranged on the circuit board positioning seat through the screw rod, and the first side clamping plate is arranged on the first sliding block upper end through the bottom support, so that the two first side clamping plates are moved oppositely by rotating the screw rod, thereby the left and right sides of the circuit board can be clamped and fixed, and then the second side clamping plate is arranged on the bottom support through the elastic telescopic rod, so that the front and back sides of the circuit board can be clamped and fixed by the second side clamping plate, and the two directions act simultaneously, thereby the stability of clamping and fixing the circuit board is improved.

[0014] 3、 the utility model discloses a supporting barrel, an inner supporting rod is elastically slidably arranged in the supporting barrel through a limiting plate and a spring, and one end of the inner supporting rod is vertically and slidably connected with the second side clamping plate, so that the front and back sides of the circuit board can be elastically clamped and fixed, and the circuit board can be disassembled by pulling the second side clamping plate. DETAILED DESCRIPTION

[0015] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0016] Figure 1 It is a whole structure schematic diagram of the utility model;

[0017] Figure 2 It is a stand structure schematic diagram of the utility model;

[0018] Figure 3 It is a circuit board positioning seat structure schematic diagram of the utility model;

[0019] Figure 4 The internal structure diagram of the support cylinder of the utility model.

[0020] In the figure: 1, jig base; 2, stand; 3, conveying belt; 4, connecting seat; 5, circuit board positioning seat; 6, air cylinder; 7, screw rod; 8, first sliding block; 9, bottom support seat; 10, first side clamping plate; 11, elastic clamping piece; 12, support cylinder; 13, second side clamping plate; 14, inner support rod; 15, welding point tester; 16, limiting sliding hole; 17, adjusting handle; 18, locking bolt; 19, spring; 20, limiting plate; 21, limiting sliding block; 22, second sliding block; 23, lead screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiments of the utility model, a multi-station parallel test circuit board jig comprises a jig base 1 and a PLC control cabinet for overall control, a conveying belt 3 is arranged in the upper part of the jig base 1 through conveying wheels, one end of the conveying wheel of the conveying belt 3 is connected with a conveying motor through a belt flywheel set, and the conveying motor is fixedly installed on the inner wall of the jig base 1; circuit board positioning seats 5 are arranged on the upper side of the conveying belt 3 in a horizontal and parallel manner through connecting seats 4; two first sliding blocks 8 are arranged on the upper side of the circuit board positioning seats 5 in a screw thread direction through screw rods 7; first side clamping plates 10 are arranged on the upper end of the first sliding blocks 8 through bottom support seats 9, so that the two first side clamping plates 10 are adjusted to move towards each other by rotating the screw rods 7, thereby clamping and fixing the left and right sides of the circuit board; second side clamping plates 13 are arranged on the bottom support seats 9 through elastic expansion rods, so that the front and back sides of the circuit board can be clamped and fixed by the second side clamping plates 13; the two directions act simultaneously, thereby facilitating the improvement of the stability of the clamping and fixing of the circuit board; second sliding blocks 22 are arranged on the upper side of the jig base 1 through stands 2 and lead screws 23, and welding point testers 15 are arranged on the lower side of the second sliding blocks 22 through air cylinders 6; the welding point testers 15 adopt X-ray welding point testers or visual cameras for visual detection, and are used for detecting and processing the welding points of the circuit board.

[0023] As Figure 1 and Figure 3As shown, in order to adjust the screw rod 7, two sets of external threads are arranged outside the two ends of the screw rod 7, and an adjusting handle 17 and a locking bolt 18 are arranged at one end of the screw rod 7, so that the one end of the screw rod 7 is conveniently adjusted and positioned.

[0024] As shown in Figure 1 and Figure 3 As shown, in order to improve the stability of the clamping and fixing of the circuit board, three sets of circuit board positioning seats 5 are arranged in the lateral direction, and a plurality of circuit board positioning seats 5 are arranged in the longitudinal direction, a flexible clamping piece 11 is arranged on one side of the first side clamping plate 10, and a plurality of flexible clamping pieces 11 are arranged at equal intervals, so as to conveniently elastically clamp and fix the left and right sides of the circuit board, thereby improving the stability of the clamping and fixing of the circuit board.

[0025] As shown in Figure 3 and Figure 4 As shown, in order to elastically clamp the front and rear sides of the circuit board, the flexible telescopic rod comprises a supporting cylinder 12, an inner supporting rod 14 is elastically and slidably arranged in the supporting cylinder 12 through a limiting plate 20 and a spring 19, and one end of the inner supporting rod 14 is connected with the second side clamping plate 13 in a perpendicular sliding manner, so as to conveniently elastically clamp and fix the front and rear sides of the circuit board, and simultaneously pull the second side clamping plate 13 to facilitate disassembly of the circuit board.

[0026] As shown in Figure 1 and Figure 3 As shown, in order to conveniently clamp and fix circuit boards of different specifications, a limiting sliding hole 16 is arranged in the second side clamping plate 13, one end of the inner supporting rod 14 is slidably arranged in the limiting sliding hole 16 through a limiting sliding block 21, and the second side clamping plate 13 is movable and adjustable relative to the inner supporting rod by means of the limiting sliding hole 16 and the limiting sliding block 21, so as to conveniently adjust the distance between the two flexible telescopic rods and clamp and fix circuit boards of different specifications.

[0027] The working principle and use process of the utility model are as follows: when in use, the upper part in the jig base 1 is provided with a conveying belt 3 through a conveying wheel, the upper side of the conveying belt 3 is provided with circuit board positioning seats 5 in the lateral direction through a connecting seat 4, for clamping and fixing a plurality of to-be-tested circuit boards in the lateral direction, then the circuit boards are conveyed to below the welding point tester 15 through the conveying belt 3, and the welding point tester 15 is driven to move laterally by a lead screw 23 to detect the welding points of the plurality of circuit boards one by one, and the detection efficiency is high.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A multi-station parallel test circuit board fixture comprising a fixture base (1), characterized in that: The upper part of the tool base (1) is provided with a conveying belt (3) through a conveying wheel, the upper side of the conveying belt (3) is provided with circuit board positioning seats (5) transversely and side by side through connecting seats (4), the upper side of the circuit board positioning seats (5) is provided with two first sliding blocks (8) through screw rods (7) oppositely and threadedly, the upper end of the first sliding block (8) is provided with a first side clamping plate (10) through a bottom support (9), the bottom support (9) is provided with a second side clamping plate (13) through an elastic telescopic rod, the upper side of the tool base (1) is provided with a second sliding block (22) through a stand (2) and a lead screw (23), and the lower side of the second sliding block (22) is provided with a welding point tester (15) through an air cylinder (6).

2. The multi-site parallel test circuit board fixture of claim 1, wherein: One end of the conveying wheel of the conveying belt (3) is connected with a conveying motor through a belt flywheel set, and the conveying motor is fixedly installed on the inner wall of the tool base (1).

3. The multi-site parallel test circuit board fixture of claim 1, wherein: The circuit board positioning seats (5) are provided with three groups transversely and side by side, and are provided with multiple groups longitudinally.

4. The multi-site parallel test circuit board fixture of claim 1, wherein: The first side clamping plate (10) is provided with elastic clamping pieces (11) on one side, and the elastic clamping pieces (11) are provided with multiple groups at equal intervals.

5. The multi-site parallel test circuit board fixture of claim 1, wherein: The elastic telescopic rod comprises a supporting cylinder (12), an inner supporting rod (14) is elastically slidably arranged in the supporting cylinder (12) through a limiting plate (20) and a spring (19), and one end of the inner supporting rod (14) is connected with the second side clamping plate (13) perpendicularly and slidably.

6. The multi-site parallel test circuit board fixture of claim 5, wherein: The second side clamping plate (13) is provided with a limiting sliding hole (16) in the inside, and one end of the inner supporting rod (14) is slidably arranged in the limiting sliding hole (16) through a limiting sliding block (21).

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