A pin testing device for four-pin package

Abstract

The invention relates to the field of pin testing technology, in particular to a pin testing device for four-pin packaging, comprising: an operating table, a placement slot is arranged on the operating table, a multimeter and a motor 1 are arranged on a fixing frame, a connecting rod is connected with a connecting shaft, a movable block is connected with a movable rod 1, a movable rod 2 is connected with a supporting rod, a cross plate is connected with a motor 2, a threaded barrel is connected with a threaded rod, and a connecting block is connected with a contact; a chip is fixed in the placement slot, the threaded barrel driven by the second motor is started to move the threaded rod downward to drive the contact on the connecting block to move downward and contact the pin, the second motor is turned off, and then the first motor is started to drive the connecting rod to rotate, the connecting rod drives the movable block on the connecting shaft to move the movable rod 1, the movable rod 1 drives other structures to make the contacts contact the pins one by one, the test leads are respectively connected to a pair of electrode parts, and the current change is observed to determine whether it is in a path, thereby solving the problem that workers need to hold the test leads and align them in sequence for detection, the operation is simple, and the detection speed is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pin testing, in particular to a pin testing device for four-pin packaging. Background Art

[0002] Pins, also called tube pins, are the connections between the internal circuit of the integrated circuit (chip) and the peripheral circuit. All the pins constitute the interface of this chip. When the integrated circuit is tested, the multimeter will be connected to the input and output pins respectively to judge whether the corresponding input and output routes are in the open state through the current change.

[0003] At present, when testing, a worker holds two test leads of a multimeter and touches the input and output pins respectively. Multiple routes are tested in sequence, and each time the worker needs to align the corresponding pins. This requires high proficiency and slows the testing speed. To this end, the present invention proposes a pin testing device for four-pin package to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a pin testing device for four-pin package to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pin testing device for a four-pin package, comprising: an operating table, the operating table is provided with a placement slot and a fixing frame, the fixing frame is provided with a multimeter and a motor 1, the motor 1 is connected to a connecting rod, the connecting rod is connected to a connecting shaft, the connecting shaft is connected to a movable block, the movable block is connected to a movable rod 1, the movable rod 1 is connected to a movable rod 2 and a cross plate, the movable rod 2 is connected to a support rod, the support rod is connected to a supporting slot, the cross plate is connected to the motor 2, the motor 2 is connected to a threaded barrel, the threaded barrel is connected to a bearing and a threaded rod, the threaded rod is connected to a connecting block, the connecting block is connected to a contact and a guide rod, the guide rod is connected to a connecting plate, and the connecting plate is connected to a connecting slot.

[0006] Preferably, a placement groove is provided in the center of the top surface of the operating table, and a fixing frame is provided on the top surface of the operating table. The cross-section of the fixing frame is an inverted U-shape, and the lower end of the fixing frame is on the left and right sides of the placement groove, and the center of the fixing frame and the center of the placement groove are on the same vertical line, and a multimeter is installed on the right end of the center of the top surface of the fixing frame.

[0007] Preferably, the left end of the center of the top surface of the fixed frame is fixedly connected to motor 1, the output end of motor 1 is fixedly connected to one end of a connecting rod, the other end of the connecting rod is rotatably connected to the outer wall of the connecting shaft, and the connecting shaft is rotatably connected to the movable block.

[0008] Preferably, the outer wall of the movable block and the inner wall of the movable groove are slidably connected, the movable groove is opened on the movable rod 1, the movable rod 1 is between the strip grooves, the strip groove is opened in the center of the upper plate of the fixed frame, and the strip groove is on the right side of the motor 1, and the left wall of the strip groove is on the left side of the connecting rod.

[0009] Preferably, guide blocks are fixedly connected to the front and rear walls of the movable block, and the guide blocks are slidably connected to guide grooves, which are arranged in the movable rod and are connected to the movable groove.

[0010] Preferably, the center of the right wall of the movable rod one is fixedly connected with movable rod two, the movable rod two is perpendicular to the movable rod one, the right wall of the movable rod two is fixedly connected with a support rod, the support rod is slidably connected with a support groove, the support groove is opened on the right side of the center of the upper plate of the fixed frame, and is connected with the strip groove.

[0011] Preferably, the bottom surface of the movable rod 1 is fixedly connected with a horizontal plate, the horizontal plate is perpendicular to the movable rod 1, the horizontal plate is between the fixed frames, the top ends of the horizontal plate are fixedly connected with motor 2, and motor 2 is on the left and right sides of the movable rod 1.

[0012] Preferably, the output ends of the motor 2 are fixedly connected with threaded barrels, the threaded barrels are below the horizontal plate, and the threaded barrels are perpendicular to the horizontal plate, the outer wall of the lower end of the threaded barrel is fixedly connected to the inner wall of the bearing, the outer wall of the bearing is embedded in the connecting plate, the connecting plate is parallel to the horizontal plate, the outer walls of the left and right ends of the connecting plate are slidably connected with connecting grooves, the connecting grooves are opened on the inner wall of the lower end of the fixed frame, and the connecting grooves are parallel to the strip grooves.

[0013] Preferably, the inner wall of the threaded cylinder is threadedly connected with a threaded rod, the lower end of the threaded rod is fixedly connected to one end of the top surface of the connecting block, the other end of the top surface of the connecting block is fixedly connected with a guide rod, the guide rod is parallel to the threaded rod, and is between the threaded cylinders, and the guide rod is below the cross plate, the outer wall of the guide rod is slidably connected in the connecting plate, the cross-section of the guide rod is T-shaped, and the bottom surface of the connecting block is fixedly connected with contacts, and the contacts are placed between the grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention embeds the chip to be detected in a placement groove, starts the second motor to drive the threaded barrel to rotate, and then moves the threaded rod downward to drive the contact on the connecting block to move downward. When the contact contacts the pin of the chip to be detected, the second motor is turned off, and then the first motor is started to drive the connecting rod to rotate. The connecting rod drives the movable block on the connecting shaft to slide in the movable groove, so that the movable rod one moves. At the same time, the movable rod one drives the supporting rod on the second movable rod to slide in the supporting groove. At the same time, the movable rod one drives a series of structures to make the contacts contact the pins of the chip to be detected one by one. The two test leads of the multimeter are respectively connected to a pair of electrode parts. In this way, by observing the current changes of each group of pins, it can be judged whether the internal circuit corresponding to the pin is in a passage, which solves the problem that workers need to hold the test leads and align them in sequence for detection. The operation is simple and the detection speed is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the left front top view of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0018] Figure 3 For the present invention Figure 1 A schematic diagram of the structure of the middle B region;

[0019] Figure 4 For the present invention Figure 1 A magnified schematic diagram of the structure of the middle C region;

[0020] Figure 5 It is a schematic diagram of the connection between the movable block and the movable rod of the present invention.

[0021] In the figure: 1. operating table; 2. fixing frame; 3. connecting plate; 4. horizontal plate; 5. motor 1; 6. connecting rod; 7. movable rod 1; 8. multimeter; 9. strip groove; 10. movable rod 2; 11. motor 2; 12. threaded cylinder; 13. connecting groove; 14. placement groove; 15. connecting shaft; 16. movable block; 17. movable groove; 18. bearing; 19. threaded rod; 20. guide rod; 21. connecting block; 22. contact; 23. support rod; 24. support groove; 25. guide block; 26. guide groove. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0026] See also Figures 1 to 5The present invention provides a technical solution: a pin test device for a four-pin package, comprising: an operating table 1, a placement slot 14 and a fixing frame 2 are provided on the operating table 1, a multimeter 8 and a motor 5 are provided on the fixing frame 2, a placement slot 14 is provided at the center of the top surface of the operating table 1, a fixing frame 2 is provided on the top surface of the operating table 1, the cross section of the fixing frame 2 is an inverted U shape, the lower end of the fixing frame 2 is on the left and right sides of the placement slot 14, and the center of the fixing frame 2 and the center of the placement slot 14 are on the same vertical line, and a multimeter is installed on the right end of the center of the top surface of the fixing frame 2 8. The motor 15 is connected to the connecting rod 6, the connecting rod 6 is connected to the connecting shaft 15, the connecting shaft 15 is connected to the movable block 16, the left end of the center of the top surface of the fixed frame 2 is fixedly connected to the motor 15, the output end of the motor 15 is fixedly connected to one end of the connecting rod 6, the other end of the connecting rod 6 is rotatably connected on the outer wall of the connecting shaft 15, the connecting shaft 15 is rotatably connected to the movable block 16, the movable block 16 is connected to the movable rod 17, the outer wall of the movable block 16 is slidably connected to the inner wall of the movable groove 17, the movable groove 17 is provided on the movable rod 17, the movable rod The strip groove 9 is provided in the center of the upper plate of the fixed frame 2, and the strip groove 9 is on the right side of the motor 5, and the left wall of the strip groove 9 is on the left side of the connecting rod 6. The front and rear walls of the movable block 16 are fixedly connected with guide blocks 25, and the guide blocks 25 are slidably connected with guide grooves 26. The guide blocks 25 and the guide grooves 26 make the connection between the movable block 16 and the movable rod 7 more stable. The guide groove 26 is provided in the movable rod 7 and is connected to the movable groove 17. The movable rod 7 is connected with the movable rod 2 10 and the cross plate 4. The movable rod 210 is connected with a support rod 23, and the support rod 23 is connected with a support groove 24. The movable rod 210 is fixedly connected to the center of the right wall of the movable rod 17. The movable rod 210 is perpendicular to the movable rod 17. The right wall of the movable rod 210 is fixedly connected with a support rod 23. The support rod 23 is slidably connected with a support groove 24. The support groove 24 is arranged on the right side of the center of the upper plate of the fixed frame 2 and is connected with the strip groove 9. The cross-section of the support rod 23 and the support groove 24 is convex, which serves to connect the movable rod 17 so that the movable rod 17 can move forward and backward stably and horizontally.

[0027] The horizontal plate 4 is connected to the motor 2 11, the bottom surface of the movable rod 1 7 is fixedly connected to the horizontal plate 4, the horizontal plate 4 is perpendicular to the movable rod 1 7, the horizontal plate 4 is between the fixed frames 2, the two ends of the top surface of the horizontal plate 4 are fixedly connected to the motor 2 11, and the motor 2 11 is on the left and right sides of the movable rod 1 7, the motor 2 11 is connected to the threaded cylinder 12, the threaded cylinder 12 is connected to the bearing 18 and the threaded rod 19, the threaded rod 19 is connected to the connecting block 21, the connecting block 21 is connected to the contact 22 and the guide rod 20, the guide rod 20 is connected to the connecting plate 3, the connecting plate 3 is connected to the connecting groove 13, the output ends of the motor 2 11 are fixedly connected to the threaded cylinder 12, the threaded cylinder 12 is below the horizontal plate 4, and the threaded cylinder 12 is perpendicular to the horizontal plate 4, the outer wall of the lower end of the threaded cylinder 12 is fixedly connected to the inner wall of the bearing 18, the outer wall of the bearing 18 is embedded in the connecting plate 3, the connecting plate 3 is parallel to the horizontal plate 4, and the outer walls of the left and right ends of the connecting plate 3 are slidably connected A connecting groove 13 is connected, and the connecting groove 13 is opened on the inner wall of the lower end of the fixing frame 2, and the connecting groove 13 is parallel to the strip groove 9. The connection between the connecting groove 13 and the connecting plate 3 makes the whole more stable. The inner wall of the threaded cylinder 12 is threadedly connected with a threaded rod 19, and the lower end of the threaded rod 19 is fixedly connected to one end of the top surface of the connecting block 21, and the other end top surface of the connecting block 21 is fixedly connected with a guide rod 20, and the guide rod 20 is parallel to the threaded rod 19, and between the threaded cylinders 12, and the guide rod 20 is below the cross plate 4, and the outer wall of the guide rod 20 is slidably connected in the connecting plate 3, and the cross-section of the guide rod 20 is T-shaped. The guide rod 20 prevents the threaded rod 19 from rotating with the threaded cylinder 12, and also prevents the threaded rod 19 from detaching from the threaded cylinder 12. The bottom surface of the connecting block 21 is fixedly connected with a contact 22, and the contact 22 is between the placement grooves 14. When the contact 22 and the pin are contacted and detected, it can be observed by a multimeter 8.

[0028] When the device is working, the chip to be detected is fixedly embedded in the placement groove 14, and the motor 2 11 is started to drive the threaded barrel 12 to rotate, so that the threaded rod 19 moves down and drives the contact 22 on the connecting block 21 to move down. When the contact 22 contacts the pin of the chip to be detected, the motor 2 11 is turned off, and then the motor 1 5 is started to drive the connecting rod 6 to rotate. The connecting rod 6 drives the movable block 16 on the connecting shaft 15 to slide in the movable groove 17, so that the movable rod 1 7 moves. At the same time, the movable rod 1 7 drives the support rod 23 on the movable rod 2 10 to slide in the support groove 24. At the same time, the movable rod 1 7 drives a series of structures to make the contact 22 contact the pins of the chip to be detected one by one. The two test leads of the multimeter 8 are respectively connected to a pair of electrode parts. In this way, by observing the current changes of each group of pins, it can be judged whether the internal circuit corresponding to the pin is in a passage.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pin testing device for a four-pin package, comprising: An operating table (1), characterized in that: the operating table (1) is provided with a placement groove (14) and a fixing frame (2), the fixing frame (2) is provided with a multimeter (8) and a motor 1 (5), the motor 1 (5) is connected to a connecting rod (6), the connecting rod (6) is connected to a connecting shaft (15), the connecting shaft (15) is connected to a movable block (16), the movable block (16) is connected to a movable rod 1 (7), the movable rod 1 (7) is connected to a movable rod 2 (10) and a horizontal plate (4), the movable rod 2 (10) is connected to a support rod (23), the support rod (23) is connected to a support groove (24), the horizontal plate (4) is connected to a motor 2 (11), the motor 2 (11) is connected to a threaded cylinder (12), the threaded cylinder (12) is connected to a bearing (18) and a threaded rod (1 9), the threaded rod (19) is connected to a connecting block (21), the connecting block (21) is connected to a contact (22) and a guide rod (20), the guide rod (20) is connected to a connecting plate (3), and the connecting plate (3) is connected to a connecting groove (13); a placement groove (14) is provided at the center of the top surface of the operating table (1), a fixing frame (2) is provided at the top surface of the operating table (1), the cross section of the fixing frame (2) is in an inverted U shape, the lower end of the fixing frame (2) is on the left and right sides of the placement groove (14), and the center of the fixing frame (2) and the center of the placement groove (14) are on the same vertical line, and a multimeter (8) is installed at the right end of the center of the top surface of the fixing frame (2); a motor 1 (5) is fixedly connected to the left end of the center of the top surface of the fixing frame (2), and the output end of the motor 1 (5) One end of the connecting rod (6) is fixedly connected to the connecting rod (6), and the other end of the connecting rod (6) is rotatably connected to the outer wall of the connecting shaft (15), and the connecting shaft (15) is rotatably connected to the movable block (16); the outer wall of the movable block (16) and the inner wall of the movable groove (17) are slidably connected, and the movable groove (17) is provided on the movable rod (7), and the movable rod (7) is between the strip grooves (9), and the strip groove (9) is provided at the center of the upper plate of the fixed frame (2), and the strip groove (9) is on the right side of the motor (5), and the left wall of the strip groove (9) is on the left side of the connecting rod (6); the front and rear walls of the movable block (16) are fixedly connected with guide blocks (25), and the guide blocks (25) are slidably connected with guide grooves (26), and the guide grooves (26) are provided on the movable The movable rod (7) is in the middle of the movable rod (7) and is connected to the movable groove (17); the movable rod (10) is fixedly connected to the center of the right wall of the movable rod (7), and the movable rod (10) is perpendicular to the movable rod (7); the right wall of the movable rod (10) is fixedly connected to a support rod (23), and the support rod (23) is slidably connected to a support groove (24), and the support groove (24) is arranged on the right side of the center of the upper plate of the fixed frame (2) and is connected to the strip groove (9); the bottom surface of the movable rod (7) is fixedly connected to a horizontal plate (4), and the horizontal plate (4) is perpendicular to the movable rod (7), and the horizontal plate (4) is between the fixed frames (2); the top surfaces of the horizontal plate (4) are fixedly connected to motors (11) at both ends, and motors (11) are on the left and right sides of the movable rod (7);The output ends of the motor 2 (11) are fixedly connected with a threaded barrel (12), the threaded barrel (12) is below the horizontal plate (4), and the threaded barrel (12) is perpendicular to the horizontal plate (4), the lower end outer wall of the threaded barrel (12) is fixedly connected to the inner wall of the bearing (18), the outer wall of the bearing (18) is embedded and connected to the connecting plate (3), the connecting plate (3) is parallel to the horizontal plate (4), the left and right outer walls of the connecting plate (3) are slidably connected with connecting grooves (13), the connecting grooves (13) are arranged on the inner wall of the lower end of the fixing frame (2), and the connecting grooves (13) are parallel to the strip grooves (9); the threaded barrel The inner wall of the connecting block (12) is threadedly connected with a threaded rod (19), the lower end of the threaded rod (19) is fixedly connected to one end of the top surface of the connecting block (21), and the other end of the top surface of the connecting block (21) is fixedly connected with a guide rod (20), the guide rod (20) is parallel to the threaded rod (19), and is between the threaded cylinder (12), and the guide rod (20) is below the horizontal plate (4), the outer wall of the guide rod (20) is slidably connected in the connecting plate (3), the cross section of the guide rod (20) is T-shaped, and the bottom surface of the connecting block (21) is fixedly connected with a contact (22), and the contact (22) is between the placement grooves (14). ;

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