SMT circuit board test board

Abstract

The utility model relates to the technical field of circuit board detection, in particular to an SMT circuit board testboard which comprises a base, a circuit board fault detector is arranged on the surface of the base, a supporting frame is fixedly connected to the surface of the base, an infrared detector is fixedly installed on the surface of the supporting frame, and the infrared detector is connected with the circuit board fault detector. A switching mechanism is arranged on the surface of the supporting frame and comprises an annular component, and the annular component is rotationally connected to the bottom of the base. According to the utility model, the three groups of detection platforms are arranged on the surface of the base, and the positions of the three groups of detection platforms are changed through the switching mechanism, so that the positions of the circuit boards are switched, and the three groups of circuit boards on the three groups of detection platforms can be respectively fixed, detected and disassembled, thereby avoiding occupying the detection time of the circuit boards; and the detection efficiency of the circuit board is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board detection technical field, concretely is a kind of SMT circuit board test bench. BACKGROUND

[0002] PCB is printed circuit board, is important electronic component, is the support body of electronic component, is the carrier of electronic component electrical connection, SMT patch refers to the series process flow on the basis of PCB processing abbreviation, SMT is surface mount technology, is the most popular technology and process in electronic assembly industry, SMT circuit board meets the practical use demand, in the production process of SMT circuit board, SMT circuit board is tested, to ensure the qualified rate of product.

[0003] The existing SMT circuit board test bench, through the sucking disc, the circuit board is fixed on the detection table, and then the infrared detector is used to detect the circuit board on the detection table, but the fixing and unloading of the circuit board position on the detection table are very time-consuming, and the detection time of the infrared detector is occupied, thereby reducing the efficiency of the SMT circuit board test bench in detecting the circuit board. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of SMT circuit board test bench to solve the problem that the existing SMT circuit board test bench is very time-consuming in fixing and unloading the circuit board position on the detection table, and the detection time of the infrared detector is occupied, thereby reducing the efficiency of the SMT circuit board test bench in detecting the circuit board.

[0005] To achieve the above object, the utility model provides the following technical scheme, a kind of SMT circuit board test bench: including base, the surface of the base is provided with circuit board fault detector, the surface of the base is fixedly connected with support frame, the surface of the support frame is fixedly installed with infrared detector, the surface of the support frame is provided with switching mechanism, the switching mechanism includes annular part, the annular part is rotatably connected at the bottom of base, the surface of the annular part is fixedly connected with support rod, the surface of the support rod is fixedly connected with detection table, the surface of the detection table is provided with sucking disc in line, the surface of the support rod is fixedly connected with worm gear, the surface of the support frame is fixedly connected with side frame, the surface of the side frame is fixedly connected with first motor, the output shaft of the first motor is fixedly connected with worm.

[0006] Preferably, the surface of the base is provided with a positioning mechanism, the positioning mechanism comprises a second motor, the second motor is fixedly connected on the surface of the base, a limiting rod is fixedly connected on the output shaft of the second motor, a guide rod is fixedly connected on the surface of the detection table, a moving rod is connected on the surface of the guide rod, a spring is fixedly connected on the surface of the moving rod, the end of the spring away from the moving rod is fixedly connected on the surface of the detection table, and a contact switch is fixedly installed on the surface of the moving rod.

[0007] Preferably, the support rod rotates on the bottom of the support frame through the annular part, the detection table is driven to rotate synchronously by the support rod, the detection table is provided with three groups, and the three detection tables are switched positions by rotating.

[0008] Preferably, the worm rotates on the support frame through the annular part, the first motor drives the worm to rotate on the surface of the side frame through rotation, the worm and the worm gear are engaged with each other, and the worm drives the worm gear to rotate on the support frame through rotation.

[0009] Preferably, the worm stops rotating to lock the rotating position of the worm gear on the support frame, and the worm gear limits the positions of the three groups of detection tables through the annular part and the support rod.

[0010] Preferably, the second motor drives the limiting rod to rotate on the surface of the base through the output shaft, and the limiting rod and the detection table are on the same horizontal plane.

[0011] Preferably, a groove is formed in one side of the detection table, a guide groove is formed in the surface of the moving rod, the guide rod makes the moving rod slide horizontally on the groove of the detection table through the guide groove of the moving rod, the elastic force of the spring acts on the moving rod, the moving rod drives the contact switch to slide synchronously on the groove of the detection table, and the contact switch is triggered by pressing on one side of the detection table.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The test table is provided with three groups of detection tables on the surface of the base, and the detection tables fix the circuit board through the suction cups, after completing the detection of one group of circuit boards, the positions of the three groups of detection tables need to be switched, the first motor drives the worm to rotate on the side frame through the output shaft, the worm drives the worm gear to rotate through the side frame, the worm gear drives the detection table to rotate through the annular part and the support rod, the detection table drives the circuit board to rotate, so that the positions of the circuit boards can be exchanged, and the three groups of circuit boards on the three groups of detection tables can be fixed, detected and unloaded respectively, so that the detection time of the circuit board is avoided, and the detection efficiency of the circuit board is improved.

[0014] 2、The test platform, through the output shaft of the second motor drives the limiting rod to rotate, so that the limiting rod rotates to ninety degrees, the moving rod protrudes on one side of the detection platform under the elastic force of the spring, the moving rod protruding on the detection platform will directly extrude the limiting rod at this time, so that the moving rod drives the contact switch to move to the direction of the detection platform, and the moving rod will press the contact switch on the detection platform, so as to trigger the contact switch, after the contact switch is triggered, the driving device of the switching mechanism locks the position of the detection platform, so as to realize the accurate locking of the position of the detection platform, and further avoid the position deviation of the circuit board on the detection platform, and further avoid the detection error caused by the position deviation of the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure front view schematic diagram of the utility model;

[0016] Figure 2 It is a structure back view schematic diagram of the utility model;

[0017] Figure 3 It is a structure front view schematic diagram of the utility model;

[0018] Figure 4 It is a structure front view schematic diagram of the utility model Figure 2 It is an enlarged structure schematic diagram of A place in the utility model;

[0019] Figure 5 It is a structure front view sectional view schematic diagram of the utility model detection platform;

[0020] Figure 6 It is a structure front view sectional view schematic diagram of the utility rod in the utility model.

[0021] In the drawing: 1, base; 11, circuit board fault detection instrument; 12, support frame; 13, infrared detector; 2, annular part; 21, support rod; 22, detection platform; 23, suction cup; 24, worm gear; 25, side frame; 26, first motor; 27, worm; 3, second motor; 31, limiting rod; 32, guide rod; 33, moving rod; 34, spring; 35, contact switch. DETAILED DESCRIPTION

[0022] The technical scheme 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-6 An embodiment provided by the utility model:

[0024] The utility model provides a SMT circuit board test platform, including base 1, be provided with circuit board fault detector 11 on the surface of base 1, fixedly connected with support frame 12 on the surface of base 1, fixedly installed with infrared detector 13 on the surface of support frame 12, be provided with switching mechanism on the surface of support frame 12, switching mechanism includes annular part 2, annular part 2 rotationally connected at the bottom of base 1, fixedly connected with support rod 21 on the surface of annular part 2, fixedly connected with detection table 22 on the surface of support rod 21, detection table 22 is provided with suction cup 23 in line on the surface, fixedly connected with worm gear 24 on the surface of support rod 21, fixedly connected with side frame 25 on the surface of support frame 12, fixedly connected with first motor 26 on the surface of side frame 25, fixedly connected with worm 27 on the output shaft of first motor 26, this SMT circuit board test platform is provided with three sets of detection table 22, and three sets of circuit boards can be fixed simultaneously through the suction cup 23 on detection table 22, and the position of the circuit board on the three detection table 22 is switched in position through switching mechanism, can be staggered with the circuit board needing detection in the process of circuit board fixing and unloading, to improve the effective time of circuit board detection, and then improve the detection efficiency of circuit board.

[0025] Further, the surface of the base 1 is provided with a positioning mechanism, the positioning mechanism comprises a second motor 3, the second motor 3 is fixedly connected to the surface of the base 1, a limiting rod 31 is fixedly connected to the output shaft of the second motor 3, a guide rod 32 is fixedly connected to the surface of the detection table 22, a moving rod 33 is connected to the surface of the guide rod 32, a spring 34 is fixedly connected to the surface of the moving rod 33, one end of the spring 34 away from the moving rod 33 is fixedly connected to the surface of the detection table 22, and a contact switch 35 is fixedly installed on the surface of the moving rod 33. The positioning mechanism can automatically position the position of the detection table 22, thereby ensuring the accurate positioning of the position of the circuit board and avoiding detection errors caused by position deviation.

[0026] Further, the support rod 21 rotates at the bottom of the support frame 12 through the annular part 2, the support rod 21 drives the detection table 22 to rotate synchronously, the detection table 22 is provided with three sets, and the three detection tables 22 are switched by rotating, the detection table 22 fixes the circuit board through the suction cup 23, the suction cup 23 is a prior art and a general means for fixing the circuit board, and the circuit board on the detection table 22 at the bottom of the infrared detector 13 is detected by the infrared detector 13, the circuit board fault detector 11 cooperates with the infrared detector 13 to detect the related values of the circuit board.

[0027] Further, the worm gear 24 rotates on the support frame 12 through the annular part 2, the first motor 26 rotates on the surface of the side frame 25 through the rotation driving worm 27, the worm 27 and the worm gear 24 are engaged with each other, the worm 27 drives the worm gear 24 to rotate on the support frame 12 through the rotation, the worm gear 24 drives the support rod 21 to rotate through the annular part 2, the support rod 21 drives the circuit board to rotate through the detection table 22, so that the position exchange between the circuit boards can be realized, and three groups of circuit boards can be fixed, detected and unloaded respectively, thereby avoiding occupying the detection time of the circuit board, and further improving the detection efficiency of the circuit board.

[0028] Further, the worm 27 stops rotating and locks the rotating position of the worm gear 24 on the support frame 12, the worm gear 24 limits the positions of the three groups of detection tables 22 through the annular part 2 and the support rod 21, so that the positions of the three groups of detection tables 22 cannot be moved, and further the stability during the detection of the circuit board is ensured.

[0029] Further, the second motor 3 drives the limiting rod 31 to rotate on the surface of the base 1 through the output shaft, the limiting rod 31 and the detection table 22 are on the same horizontal plane, the limiting rod 31 can limit the rotating position of the detection table 22 on one side of the suction cup 23, and in the switching process of the suction cup 23, the limiting rod 31 can avoid touching the detection table 22 in the switching process through the rotation.

[0030] Further, a groove is formed on one side of the detection table 22, a guide groove is formed on the surface of the moving rod 33, the guide rod 32 makes the moving rod 33 slide horizontally on the groove of the detection table 22 through the guide groove of the moving rod 33, the spring 34 acts on the moving rod 33, the moving rod 33 drives the contact switch 35 to slide synchronously on the groove of the detection table 22, and the contact switch 35 is triggered by pressing on one side of the detection table 22, the moving rod 33 protrudes on one side of the detection table 22 under the elastic force of the spring 34, the limiting rod 31 limits the position of the moving rod 33, so that the moving rod 33 presses the contact switch 35 on the detection table 22, the contact switch 35 is the prior art, the contact of the contact switch 35 is triggered after being pressed, after the contact switch 35 is triggered, the driving device of the switching mechanism locks the position of the detection table 22, so that the accurate locking of the position of the detection table 22 is realized, and further the position deviation of the circuit board on the detection table 22 is avoided.

[0031] Working principle: three groups of detection tables 22 are arranged on the surface of the base 1, and the detection tables 22 are fixed by the suction cups 23, after completing the detection of a group of circuit boards, the position of the three groups of detection tables 22 needs to be switched, the output shaft of the first motor 26 drives the worm 27 to rotate on the side frame 25, the worm 27 drives the worm wheel 24 to rotate through the side frame 25, the worm wheel 24 drives the detection table 22 to rotate through the annular part 2 and the supporting rod 21, the detection table 22 drives the circuit board to rotate, so that the positions of the circuit boards can be exchanged, at this time, the three groups of circuit boards on the three groups of detection tables 22 can be fixed, detected and unloaded respectively, so as to avoid occupying the detection time of the circuit board, and the detection efficiency of the circuit board is improved.

[0032] In the process of switching the position of the detection table 22, the output shaft of the second motor 3 drives the limiting rod 31 to rotate, so that the limiting rod 31 is rotated to ninety degrees, the moving rod 33 is protruded on one side of the detection table 22 under the elastic force of the spring 34, at this time, the moving rod 33 protruded on the detection table 22 will directly extrude the limiting rod 31, so that the moving rod 33 drives the contact switch 35 to move to the direction of the detection table 22, and the moving rod 33 will press the contact switch 35 on the detection table 22, so as to trigger the contact switch 35, after the contact switch 35 is triggered, the driving device of the switching mechanism locks the position of the detection table 22, so as to realize the accurate locking of the position of the detection table 22, and avoid the position deviation of the circuit board on the detection table 22, and avoid the detection error caused by the position deviation of the circuit board.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. An SMT circuit board test station, characterized by: The utility model provides a circuit board fault detection instrument, including base (1), the surface of base (1) is provided with circuit board fault detection instrument (11), the surface of base (1) is fixedly connected with support frame (12), the surface of support frame (12) is fixedly installed with infrared detector (13), the surface of support frame (12) is provided with switching mechanism, switching mechanism includes annular part (2), annular part (2) rotationally connected in the bottom of base (1), the surface of annular part (2) is fixedly connected with support rod (21), the surface of support rod (21) is fixedly connected with detection platform (22), the surface of detection platform (22) is provided with sucking disc (23) in line, the surface of support rod (21) is fixedly connected with worm wheel (24), the surface of support frame (12) is fixedly connected with side frame (25), the surface of side frame (25) is fixedly connected with first motor (26), the output shaft of first motor (26) is fixedly connected with worm (27).

2. The SMT circuit board test table according to claim 1, characterized in that: The surface of base (1) is provided with positioning mechanism, the positioning mechanism includes second motor (3), the second motor (3) is fixedly connected on the surface of base (1), the output shaft of second motor (3) is fixedly connected with limiting rod (31), the surface of detection platform (22) is fixedly connected with guide rod (32), the surface of guide rod (32) is connected with moving rod (33), the surface of moving rod (33) is fixedly connected with spring (34), one end of spring (34) away from moving rod (33) is fixedly connected on the surface of detection platform (22), the surface of moving rod (33) is fixedly installed with contact switch (35).

3. The SMT circuit board test table according to claim 1, characterized in that: The support rod (21) is rotated in the bottom of support frame (12) through annular part (2), the support rod (21) drives detection platform (22) to rotate synchronously, the detection platform (22) is provided with three groups, and the three detection platforms (22) are switched positions by rotating.

4. The SMT circuit board test table according to claim 3, characterized in that: The worm wheel (24) is rotated on the support frame (12) through the annular part (2), the first motor (26) drives the worm (27) to rotate on the surface of side frame (25) by rotating, the worm (27) and the worm wheel (24) are engaged with each other, the worm (27) drives the worm wheel (24) to rotate on the support frame (12) by rotating.

5. The SMT circuit board test table according to claim 4, characterized in that: The worm (27) stops rotating and locks the rotating position of the worm wheel (24) on the support frame (12), the worm wheel (24) limits the position of the three detection platforms (22) through the annular part (2) and the support rod (21).

6. The SMT circuit board test table according to claim 2, characterized in that: The second motor (3) drives the limiting rod (31) to rotate on the surface of base (1) through the output shaft, and the limiting rod (31) and the detection platform (22) are on the same horizontal plane.

7. The SMT circuit board test table according to claim 2, wherein: One side of the detection platform (22) is provided with a recess, a guide groove is formed on the surface of the moving rod (33), the guide rod (32) makes the moving rod (33) slide horizontally on the recess of the detection platform (22) through the guide groove of the moving rod (33), the elastic force of the spring (34) acts on the moving rod (33), the moving rod (33) drives the contact switch (35) to slide synchronously on the recess of the detection platform (22), and the contact switch (35) is triggered by pressing on one side of the detection platform (22).

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