A feeding device for PCB testing

Abstract

The application discloses a feeding equipment for PCB testing and belongs to the technical field of feeding equipment. The feeding equipment comprises a base, a sliding seat, swing arms rotatably arranged on the base and the sliding seat, a driving mechanism arranged on one side of the base and used for controlling synchronous rotation of the two swing arms, and two swing arms which are parallel and one of which is retractable during rotation. One side of the rotating end of the two swing arms is connected through a second telescopic piece, and the other side of the rotating end of the two swing arms is connected with a grabbing mechanism through a rotating connecting piece. The stroke of the two swing arms comprises a grabbing action and a discharging action. The grabbing action is rotated at an angle of 0-90 degrees with the horizontal plane, and the discharging action is rotated at an angle of 90-180 degrees with the horizontal plane. In the discharging state, the horizontal coverage range of the retractable rotating end of the swing arm is controlled by controlling the extension of the second telescopic piece. The above structure realizes the function of synchronously grabbing the PCB to be detected and the detected PCB to the next process. The detected PCB is regularly placed, and subsequent processing is facilitated.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of feeding equipment, in particular to feeding equipment for PCB (Printed Circuit Board) testing. BACKGROUND

[0002] In the PCB measurement process, the PCB to be measured needs to be grabbed to a detection table, and after detection, it is grabbed to a material receiving table. The material receiving table includes a qualified product box and a defective product box. The unqualified product box can be divided into multiple defective product types according to types, facilitating subsequent processing. The existing PCB measurement grabbing action is mainly completed through the following structure cooperation: a base fixed at a stroke and reciprocating sliding and a feeding and discharging gripper or suction cup installed on the base and a sensor controlled by a servo motor. In the actual feeding, discharging and classifying process, due to the design characteristics of the stroke track of the gripper or suction cup, the servo motor can only control the base to reciprocally slide to drive the gripper or suction cup to a material taking point to grab the PCB and then send it to a target point. The material taking point is an upper feeding table and a detection table after detection. The target point is the detection table and the material receiving table. Such frequent actions are low in efficiency. On the one hand, after a PCB is detected, the gripper or suction cup needs to grab and discharge the PCB and then grab the PCB to be detected and transmit it to the detection table. On the other hand, the servo motor is frequently started and stopped, and the base is frequently slid, which can easily reduce the service life of the equipment and cause abrasion of structural parts.

[0003] Based on the above problems, the application provides feeding equipment for PCB testing. SUMMARY

[0004] In view of the problems in the above technical background, the application aims to provide feeding equipment for PCB testing. On the one hand, the feeding equipment can synchronize the feeding and discharging steps and realize the synchronization of feeding and discharging. On the other hand, the feeding equipment can control different discharging points in the synchronization process through a unique design, i.e. synchronously transferring different types of defective products to different types of unqualified product boxes set, thereby solving the problems of low grabbing and conveying efficiency of the feeding and discharging transmission mechanism in the existing PCB measurement process and the problems of reduced service life of the equipment and abrasion of structural parts caused by complicated actions.

[0005] In order to achieve the above purposes, the application adopts the following technical solutions:

[0006] A PCB board testing loading device includes a base and a slide. One end of the slide is inserted into the base. A pivot seat is provided on the top of the base and the top of the other end of the slide. A swing arm is mounted on the pivot seat. A drive mechanism for controlling the synchronous rotation of the two swing arms is provided on one side of the base. The two swing arms are parallel, and one of the swing arms is retractable during rotation. One side of the rotating end of the two swing arms is connected by a second telescopic member, and the other side of the rotating end of the two swing arms is connected to a gripping mechanism by a rotating connector. The stroke of the two swing arms includes a gripping action and a releasing action. The gripping action is a rotation of the swing arm with an angle of 0 to 90 degrees with the horizontal plane, and the releasing action is a rotation of the swing arm with an angle of 90 to 180 degrees with the horizontal plane. During the releasing action, the horizontal coverage range of the retractable swing arm rotating end is controlled by controlling the extension of the second telescopic member.

[0007] In the above technical solution, a pivot seat is provided on the base and the slide, and a swing arm is installed on each pivot seat. The two swing arms remain parallel during rotation, and one swing arm can extend and retract during rotation, while the other can extend and retract to adjust its length before rotation. One side of the rotating end of the two swing arms is rotatably connected by a second telescopic component, and the other side is connected to the material gripping mechanism by a rotating connector. At the same time, a drive mechanism that synchronously controls the rotation of the two swing arms is also installed on one side of the base. In actual installation, the pivot of the non-extendable swing arm is placed between the feeding table and the inspection table. During the rotation of the swing arm, the material gripping mechanism picks up the PCB board to be inspected from the feeding table to the inspection table. During this process, the other extendable swing arm synchronously inspects the board on the inspection table. After the PCB board is picked up and placed on the receiving table, when the swing arm rotates excessively, the extension of the second telescopic component is controlled to push the telescopic swing arm to extend, thereby placing the measured PCB board on the receiving table at different positions. This completes the simultaneous picking up and placing the PCB board to be tested on the testing table and picking up the tested PCB board on the testing table and placing it on different types of receiving tables in one set of actions. The receiving table is equipped with qualified product boxes and several defective product boxes of different types according to the usage requirements. Compared with the traditional single-stroke reciprocating loading and unloading mechanism, it reduces the stroke steps of loading and unloading PCB boards before and after testing, improves the testing efficiency, and can also neatly place each tested PCB board according to the classification requirements, which is convenient for subsequent processing.

[0008] In the above technical solution, the base is further provided with a sliding cavity that opens to one end, and one end of the slide is inserted into the sliding cavity. At the same time, the base is also provided with a threaded rod that controls the insertion depth of one end of the slide, and a handle is provided on the outer end of the threaded rod.

[0009] In the above technical solution, the rotating shaft seat is further divided into a first rotating shaft seat or a second rotating shaft seat. The distance from the vertical plane through the axis of the second rotating shaft seat to the feeding table and the detection table is equal. The rotating shafts installed on the first rotating shaft seat and the second rotating shaft seat are respectively connected to the swing arm at the end away from the material table.

[0010] In the above technical solution, further, the driving mechanism includes a clamping plate arranged on one side of the base, a sliding groove is formed between the clamping plate and the base, a rack is installed in the sliding groove, the base is provided with a third telescopic member for controlling the sliding of the rack in the sliding groove, the shafts installed on the first shaft seat and the second shaft seat are provided with gears respectively at the ends away from the material table.

[0011] In the above technical solution, further, the other swing arm is a telescopic rod, and a screw is arranged on the telescopic rod to control the extension length of the telescopic rod.

[0012] In the above technical solution, further, the rotary connecting member includes a fixed rod arranged on the swing arm at the side facing the material table, a first connecting cylinder and a second connecting cylinder, the outer end of the fixed rod is provided with an anti-falling disc, the first connecting cylinder is arranged on the fixed rod, and the outer end of the first connecting cylinder is provided with a limiting groove for clamping the anti-falling disc, the outer end of the first connecting cylinder and the inner end of the second connecting cylinder are respectively provided with externally threaded segments and internally threaded segments.

[0013] In the above technical solution, further, the grabbing mechanism includes a U-shaped seat, a first electric telescopic member, a pneumatic finger and two rubber clamps, the outer end of the second connecting cylinder is connected to one side of the U-shaped seat, the first electric telescopic member is installed on the top of the U-shaped seat, the output end of the first electric telescopic member penetrates through the top plate of the U-shaped seat and is connected to the pneumatic finger, the two clamping ends at the bottom of the pneumatic finger are respectively connected to the rubber clamps, and the opposite clamping surfaces of the two rubber clamps are both provided with anti-skid lines.

[0014] In the above technical solution, further, the first electric telescopic member, the second telescopic member and the third telescopic member are electric telescopic rods.

[0015] In the above technical solution, further, the PCB testing feeding equipment is positioned and installed on one side of the material table, the material table includes a feeding table, a detection table and a collecting table, and the collecting table includes a qualified product box and a plurality of substandard product boxes for collecting different types of substandard products.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] By being provided with rotating shaft seats on the base and the sliding seat, the rotating shaft seats are each installed with a swing arm, the two swing arms always keep parallel in the rotating process, and one of the swing arms can be telescopic in the rotating process, and the other can be telescopic in the rotating process, the rotating ends of the two swing arms are connected through the second telescopic pieces on one side, and are connected through the rotating connecting pieces on the other side, and the base is further installed with a driving mechanism for synchronously controlling the rotation of the two swing arms, in the actual installation process, the rotating shaft of the swing arm which cannot be telescopic in the rotating process is arranged between the feeding table and the detection table, in the rotating process of the swing arm, the PCB to be detected is grabbed from the feeding table to the detection table through the grabbing mechanism, in this process, the other telescopic swing arm synchronously grabs the detected PCB on the detection table and places it on the receiving table, when the swing arm rotates excessively, the telescopic swing arm is elongated by controlling the second telescopic piece to stretch, so that the measured PCB is placed on the receiving table at different positions, thereby completing the action of grabbing the PCB to be detected and placing it on the detection table and grabbing the detected PCB on the detection table and placing it on the receiving table of different types at the same time, the receiving table is provided with a qualified product box and a plurality of different types of defective product boxes according to the use requirement, compared with the traditional single-stroke reciprocating feeding and discharging mechanism, the stroke steps of feeding and discharging before and after the PCB detection are reduced, the detection efficiency is improved, and the detected PCB can be placed regularly according to the classification requirement, which is convenient for subsequent processing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A feeding equipment grabbing state perspective view for PCB testing provided for the embodiment of the application;

[0019] Figure 2 A feeding and discharging critical point perspective view for PCB testing provided for the embodiment of the application;

[0020] Figure 3 A discharging state perspective view for PCB testing provided for the embodiment of the application Figure 1 ;

[0021] Figure 4 A discharging state perspective view for PCB testing provided for the embodiment of the application Figure 2 ;

[0022] Figure 5 A driving mechanism exploded perspective view provided for the embodiment of the application;

[0023] Figure 6 A base and sliding seat half-section perspective view provided for the embodiment of the application;

[0024] Figure 7 A swing arm, rotating connecting piece and grabbing mechanism local exploded perspective view provided for the embodiment of the applicationFigure 1 ;

[0025] Figure 8 Partial exploded perspective view of the swing arm, rotary connecting piece and grabbing mechanism provided by the embodiment of the present application Figure 2 .

[0026] In the figure: A, feeding table; B, detection table; C, receiving table; C1, qualified product box; Cn, substandard product box;

[0027] 100, base; 110, first rotary shaft seat; 120, sliding cavity; 130, threaded rod; 131, handle;

[0028] 200, sliding seat; 210, second rotary shaft seat;

[0029] 300, swing arm;

[0030] 400, rotary connecting piece; 410, fixed rod; 411, anti-dropping disc; 420, first connecting cylinder; 421, limiting groove; 422, outer threaded section; 430, second connecting cylinder; 431, inner threaded section;

[0031] 500, grabbing mechanism; 510, U-shaped seat; 520, first electric telescopic piece; 530, pneumatic finger; 540, rubber clamp; 541, anti-slip pattern;

[0032] 600, second telescopic piece;

[0033] 700, driving mechanism; 710, clamping plate; 720, third telescopic piece; 730, gear rack; 740, gear. DETAILED DESCRIPTION

[0034] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0035] Embodiment one

[0036] As Figures 1-6As shown, the base 100 has a sliding cavity 120 through one side end, one end of the sliding seat 200 is slidingly inserted into the sliding cavity 120, and the base 100 is provided with a threaded rod 130, one end of the threaded rod 130 is rotatably installed on the base 100 and connected with a handle 131, the sliding seat 200 is horizontally provided with a threaded hole, and the threaded rod 130 is threadedly inserted into the threaded hole, that is, the extension length of the sliding seat 200 is controlled by rotating the handle 131, the outer side end top of the sliding seat 200 and one side of the top of the base 100 are provided with protruding shaft seats, which are respectively a second shaft seat 210 and a first shaft seat 110, the second shaft seat 210 and the first shaft seat 110 are provided with shafts, the shafts are fixedly connected with the swing arms 300 at the opposite ends of the workbench, and the outer side ends of the shafts are further fixedly provided with gears 740, the base 100 is provided with protrusions on the front and rear sides, the front side away from the workbench is provided with a clamping plate 710 through screws, the clamping plate 710 and the base 100 form a sliding groove, a rack 730 is slidingly installed in the sliding groove, the rack 730 is meshingly installed with the two gears 740, and a third telescopic member 720, that is, an electric telescopic rod / electric telescopic cylinder, is installed on one side of the base 100, the rack 730 is reciprocatingly slid in the sliding groove through the third telescopic member 720, thereby realizing synchronous control of the two swing arms 300 to swing 0-180 degrees, the two swing arms 300 are connected through the second telescopic member 600 at one side of the rotating end, and the two swing arms 300 are connected with the grabbing mechanisms 500 through the rotary connecting members 400 at the other side of the rotating end;

[0037] The two swing arms 300 are telescopic rods, one of which is provided with a screw for locking the telescopic length, and the design advantage is that the PCB board can be grabbed and conveyed between the feeding table A and the detection table B with different distances, the base 100 is fixedly installed on one side of the detection table B, and then one of the swing arms 300 is controlled through the handle, that is, the shaft of the telescopic rod is located between the feeding table A and the detection table B, thereby realizing that the grabbing mechanism 500 connected with the rotating end of the swing arm 300 drives the PCB board on the feeding table A to be grabbed onto the detection table B during rotation;

[0038] In the process of realizing the grabbing of the PCB to be detected to the detection table B, another telescopic swing arm 300, i.e. a telescopic rod which is telescopic in the rotating process, grabs and conveys the PCB which has been detected on the detection table B to the material receiving table C through the grabbing mechanism 500 installed at the rotating end, and controls the extension of the second telescopic part 600 according to the pre-set classification of the detection result of the PCB, i.e. the electric telescopic rod / electric telescopic cylinder, and the control step is in the 90-180 rotating process of the swing arm, so as to avoid the limitation of the structure caused by the early extension, so as to achieve the effect of controlling the extension of the swing arm 300, and according to the pre-set material receiving table C including the qualified product box C1, the defective product box C2 to the defective product box Cn, the different extension lengths of the swing arm 300 corresponding to the qualified product box C1, the defective product box C2 to the defective product box Cn, i.e. the extension length of the second telescopic part 600, so as to control the different extension lengths of the swing arm 300, so as to meet the function of taking back and placing the PCB according to different detection results, compared with the traditional single-stroke reciprocating feeding and discharging mechanism, the stroke steps of feeding and discharging before and after the detection of the PCB are reduced, the detection efficiency is improved, and meanwhile, each detected PCB can be placed regularly according to the classification requirements, which is convenient for subsequent processing.

[0039] As shown in Figures 7-8 The rotating connecting part 400 includes a fixed rod 410 installed on the rotating end of the swing arm 300 towards the side of the material table, a first connecting cylinder 420 and a second connecting cylinder 430, the outer end of the fixed rod 410 is provided with an anti-drop disc 411, the fixed rod 410 and the rotating end of the swing arm 300 can be connected by threads or welded, the first connecting cylinder 420 is arranged on the fixed rod 410, if welded, the first connecting cylinder 420 should be installed on the first connecting cylinder 420 before welding, and the outer end of the first connecting cylinder 420 is provided with a limiting groove 421 which is inserted into the anti-drop disc 411, the outer end of the first connecting cylinder 420 and the inner end of the second connecting cylinder 430 are respectively provided with an outer thread segment 422 and an inner thread segment 431 which are installed by threads, the design advantage is that the grabbing mechanism can be disassembled conveniently, can rotate simultaneously, and the smoothness of the rotation of the grabbing mechanism 500 can be improved by increasing the contact surface.

[0040] As shown in Figures 7-8As shown, the grabbing mechanism 500 comprises a U-shaped seat 510, a first electric telescopic part 520, a pneumatic finger 530 and two rubber clamps 540, the outer side end of the second connecting barrel 430 is connected to the upper side of the U-shaped seat 510, the U-shaped seat 510 can keep the opening downward under the action of gravity through the rotary connecting part 400, ensuring the accuracy during grabbing, the first electric telescopic part 520, i.e. an electric telescopic rod / cylinder, is installed on the top of the U-shaped seat 510, the output end of the first electric telescopic part 520 penetrates the top plate of the U-shaped seat 510 and is connected to the pneumatic finger 530, the two clamping ends at the bottom of the pneumatic finger 530 are respectively connected to the rubber clamps 540, the opposite clamping surfaces of the two rubber clamps 540 are both provided with anti-skid lines 541, the pneumatic finger 530 moves up and down through the first electric telescopic part 520, so as to meet the grabbing function of the PCB with different stacking heights, and the rubber clamps 540 are arranged to realize the effect of convenient clamping and stable clamping, and the PCB will not be damaged.

[0041] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A PCB board testing loading device, comprising a base (100) and a slide (200), one end of the slide (200) being inserted into the base (100), and a rotating shaft seat being provided on the top of both the base (100) and the other end of the slide (200), characterized in that: A swing arm (300) is mounted on the pivot seat. A drive mechanism (700) for controlling the synchronous rotation of the two swing arms (300) is provided on one side of the base (100). The two swing arms (300) are parallel, and one of the swing arms (300) can extend and retract during rotation. One side of the rotating end of the two swing arms (300) is connected by a second telescopic member (600), and the other side of the rotating end of the two swing arms (300) is connected by a material gripping mechanism (500) through a rotating connector (400); The two swing arms (300) have a gripping action and a releasing action. The gripping action is the swing arm (300) rotating at an angle of 0 to 90 degrees with the horizontal plane, and the releasing action is the swing arm (300) rotating at an angle of 90 to 180 degrees with the horizontal plane. During the releasing action, the horizontal coverage range of the rotating end of the telescopic swing arm (300) is controlled by controlling the extension of the second telescopic member (600).

2. The PCB board testing feeding device according to claim 1, characterized in that, The base (100) is provided with a sliding cavity (120) that opens to one end. One end of the slide (200) is inserted into the sliding cavity (120). At the same time, the base (100) is also provided with a threaded rod (130) that controls the insertion depth of one end of the slide (200). A handle (131) is provided on the outer end of the threaded rod (130).

3. The PCB board testing feeding device according to claim 2, characterized in that, The rotating shaft seat is either a first rotating shaft seat (110) or a second rotating shaft seat (210). The distance from the vertical plane through the axis of the second rotating shaft seat (210) to the feeding table and the testing table is equal. The rotating shafts installed on the first rotating shaft seat (110) and the second rotating shaft seat (210) are respectively connected to the swing arm (300) at the end away from the material table.

4. The PCB board testing feeding device according to claim 3, characterized in that, The drive mechanism (700) includes a clamping plate (710) disposed on one side of the base (100), a groove is formed between the clamping plate (710) and the base (100), a rack (730) is installed in the groove, and a third telescopic member (720) is provided on the base (100) to control the rack (730) to slide in the groove. The first rotating shaft seat (110) and the second rotating shaft seat (210) are respectively provided with gears (740) at the ends away from the material table, and the rack (730) meshes with the two gears (740).

5. The PCB board testing feeding device according to claim 1, characterized in that, The other swing arm (300) is a telescopic rod, which is equipped with screws to control its extension length.

6. The PCB board testing feeding device according to claim 5, characterized in that, The rotating connector (400) includes a fixed rod (410) installed on the side of the rotating end of the swing arm (300) facing the material table, a first connecting cylinder (420) and a second connecting cylinder (430). The outer end of the fixed rod (410) is provided with an anti-detachment disc (411). The first connecting cylinder (420) is set on the fixed rod (410). At the same time, the outer end of the first connecting cylinder (420) is provided with a limiting groove (421) for inserting the anti-detachment disc (411). The outer end of the first connecting cylinder (420) and the inner end of the second connecting cylinder (430) are respectively provided with a threaded external thread section (422) and an internal thread section (431).

7. The PCB board testing feeding device according to claim 6, characterized in that, The material gripping mechanism (500) includes a U-shaped seat (510), a first electric telescopic component (520), a pneumatic finger (530), and two rubber clamps (540). The outer end of the second connecting cylinder (430) is connected to one side of the upper part of the U-shaped seat (510). The first electric telescopic component (520) is installed on the top of the U-shaped seat (510). The output end of the first electric telescopic component (520) passes through the top plate of the U-shaped seat (510) and is connected to the pneumatic finger (530). The two clamping ends at the bottom of the pneumatic finger (530) are respectively connected to the rubber clamps (540). The opposing clamping surfaces of the two rubber clamps (540) are provided with anti-slip textures (541).

8. A PCB board testing feeding device according to any one of claims 1-7, characterized in that, The first electric telescopic component (520), the second telescopic component (600), and the third telescopic component (720) are electric telescopic rods.

9. A PCB board testing feeding device according to any one of claims 8, characterized in that, The PCB board testing equipment is positioned and installed on one side of the material platform, which includes a feeding platform A, a testing platform B, and a receiving platform C.

10. A PCB board testing feeding device according to any one of claims 9, characterized in that, The receiving station C includes qualified product boxes and multiple defective product boxes for collecting different types of defective products.

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