Instrument circuit board detection device

Abstract

The utility model discloses an instrument circuit board detection device, which relates to the field of circuit board detection and comprises a fixed seat, a clamping seat is fixed on the fixed seat, a clamping groove is arranged at the top end of the clamping seat, a circuit board body is clamped in the clamping groove, a connecting hole is arranged on the circuit board body, and the circuit board body is connected with the connecting hole after being placed. When the circuit board body is overhauled, a plurality of first electric push rods extend downwards to drive a lower pressing plate to descend, if the positions of connecting holes formed in the circuit board body are accurate, extending columns at the bottom end of the lower pressing plate can pass through the connecting holes and extend into a clamping seat, in addition, the lower pressing plate descends to enable the bottom end of a pressing disc to be pressed to the top end of the circuit board body, and it is avoided that in the overhauling process, the circuit board body is damaged. The circuit board body moves up and down, and after the extending column extends into the connecting hole, if burrs exist in the connecting hole, the motor can be started to enable the extending column to drive the grinding edge to rotate, so that redundant burrs are ground off.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing, and in particular to an instrument circuit board testing device. Background Technology

[0002] A circuit board is an electronic component primarily used for the electrical connection of electronic devices. It is manufactured using electronic printing techniques, hence the name "printed" circuit board. Circuit boards play a crucial role in the mass production of fixed circuits and the optimization of electrical appliance layout. For mounting purposes, circuit boards typically have connection holes for fixing positions.

[0003] After the circuit board is manufactured, the position of the connecting holes needs to be inspected to avoid the opening position of the connecting holes being offset. Existing inspection devices require rework using a grinding device when the opening radius of the connecting hole is less than the standard value or when the connecting hole has burrs, which is quite troublesome.

[0004] Therefore, it is necessary to propose an instrument circuit board testing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an instrument circuit board testing device to solve the problem that existing testing devices require rework using a grinding device when the opening radius of the connecting hole is smaller than the standard value or when burrs are generated in the connecting hole, which is quite troublesome.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an instrument circuit board testing device, including a fixed base, a card holder fixed on the fixed base, a card slot opened at the top of the card holder, a circuit board body engaged in the card slot, a connecting hole opened on the circuit board body, a first electric push rod arranged on the outer side of the card holder, a lower pressure plate fixed at the top of a plurality of first electric push rods, and the bottom ends of the plurality of first electric push rods embedded in the top of the fixed base.

[0007] The bottom end of the lower pressure plate is rotatably connected to a rotating cylinder corresponding to the position of the connecting hole. The bottom end of the rotating cylinder is connected to an extension column. Multiple grinding ridges are provided on the outer side of the extension column. The top end of the lower pressure plate is fixed with a motor. The drive shaft of the motor is fixedly connected to the top end of the rotating cylinder.

[0008] Preferably, a second electric push rod is fixed inside the rotating cylinder, and a conical head is connected to the bottom end of the second electric push rod. The conical head extends into the interior of the protruding column, and the outer side of the conical head and the inner side of multiple grinding edges are correspondingly fitted. Furthermore, an inclined edge is provided on the side of the multiple grinding edges near the conical head.

[0009] Preferably, the bottom end of the protruding column has an opening that communicates with the top end of the protruding column, and multiple protruding grooves are provided on the outside of the protruding column, all of which communicate with the inside of the opening. The grinding ridge is telescopically disposed within the protruding groove.

[0010] Preferably, each of the multiple grinding edges has a protruding end fixed at its bottom end near the conical head, and a return spring is fixed between the protruding end and the inner wall of the opening.

[0011] Preferably, a spring telescopic rod is fixed to the middle of the bottom end of the lower pressure plate, and a pressure plate is fixed to the bottom end of the spring telescopic rod. The bottom end of the pressure plate is pressed against the top end of the circuit board body.

[0012] Preferably, the card holder has a support base fixed inside, and the support base has an insertion hole for inserting the corresponding protruding post.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. After the circuit board body is placed, multiple first electric push rods extend downwards, thereby driving the lower pressure plate to descend. If the connection hole on the circuit board body is accurately positioned, the protruding post at the bottom of the lower pressure plate will pass through the connection hole and extend into the card slot. In addition, the descent of the lower pressure plate can press the bottom of the pressure plate against the top of the circuit board body, preventing the circuit board body from moving up and down during maintenance. When the protruding post extends into the connection hole, if there are burrs in the connection hole, the motor can be started to make the protruding post drive the grinding edge to rotate, thereby grinding away the excess burrs.

[0015] 2. In the actual operation of this utility model, if the radius of the connecting hole on the circuit board body is small, the tapered head can be moved upward by retracting the second electric push rod. At this time, the inner sides of multiple grinding edges lose the squeezing of the tapered head and automatically retract into the interior of the protruding column, which is convenient to adapt to different connecting hole sizes. At the same time, after the adjusted protruding column extends into the interior of the connecting hole, the tapered head can be extended downward again so that the extended grinding edges can grind the connecting hole. The radius of the connecting hole is increased by grinding, reducing the subsequent reprocessing steps. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the instrument circuit board testing device of this utility model.

[0017] Figure 2 This is a schematic diagram of the support base and insertion hole of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the rotating drum of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the pressure plate of this utility model.

[0020] In the diagram: 1. Fixed base; 2. Card slot; 3. Circuit board body; 4. First electric push rod; 5. Lower pressure plate; 6. Motor; 7. Rotary drum; 8. Extending column; 9. Grinding edge; 10. Card slot; 11. Support base; 12. Insertion hole; 13. Second electric push rod; 14. Conical head; 15. Return spring; 16. Protruding end; 17. Spring telescopic rod; 18. Pressure plate; 19. Through port. Detailed Implementation

[0021] This utility model provides, for example Figures 1-4 The instrument circuit board testing device shown includes a fixed base 1, a card holder 2 fixed on the fixed base 1, a card slot 10 opened at the top of the card holder 2, and a circuit board body 3 is engaged in the card slot 10. The card slot 10 can prevent the circuit board body 3 from moving during maintenance, and at the same time can limit the four sides of the circuit board body 3.

[0022] The circuit board body 3 has a connection hole. The outer side of the card holder 2 is provided with a first electric push rod 4. The top of the multiple first electric push rods 4 is fixed with a lower pressure plate 5. The multiple first electric push rods 4 are embedded in the fixed base 1. The bottom middle of the lower pressure plate 5 is fixed with a spring telescopic rod 17. The bottom end of the spring telescopic rod 17 is fixed with a pressure plate 18. The bottom end of the pressure plate 18 is pressed against the top of the circuit board body 3.

[0023] The bottom end of the lower pressure plate 5 is rotatably connected to a rotating cylinder 7 corresponding to the position of the connecting hole. The bottom end of the rotating cylinder 7 is connected to an extension column 8. Multiple grinding ridges 9 are provided on the outer side of the extension column 8. The top end of the lower pressure plate 5 is fixed with a motor 6. The drive shaft of the motor 6 is fixedly connected to the top end of the rotating cylinder 7.

[0024] After the circuit board body 3 is placed, multiple first electric push rods 4 extend downwards, thereby driving the lower pressure plate 5 to descend. If the connection hole on the circuit board body 3 is accurately positioned, the protruding post 8 at the bottom of the lower pressure plate 5 will pass through the connection hole and extend into the card holder 2. In addition, the descent of the lower pressure plate 5 can press the bottom of the pressure plate 18 against the top of the circuit board body 3, preventing the circuit board body 3 from moving up and down during maintenance.

[0025] When the protruding post 8 is inserted into the connecting hole, if there are burrs in the connecting hole, the motor 6 can be started to make the protruding post 8 drive the grinding edge 9 to rotate, thereby grinding away the excess burrs.

[0026] The card holder 2 has a support base 11 fixed inside. The support base 11 has an insertion hole 12 for the corresponding protruding post 8 to be inserted. The support base 11 is used to support the bottom end of the circuit board body 3.

[0027] The inside of the rotating drum 7 is fixed with a second electric push rod 13. The bottom end of the second electric push rod 13 is connected to a conical head 14. The conical head 14 extends into the inside of the protruding column 8. The outer side of the conical head 14 and the inner side of multiple grinding edges 9 are correspondingly fitted. The multiple grinding edges 9 have an inclined edge on the side close to the conical head 14.

[0028] The bottom end of the protruding column 8 is provided with an opening 19, which is connected to the top end of the protruding column 8. Multiple protruding slots are provided on the outside of the protruding column 8, and all of the multiple protruding slots are connected to the inside of the opening 19. The grinding edge 9 is telescopically set in the protruding slot. The bottom end of the multiple grinding edges 9 near the conical head 14 is fixed with a protruding end 16. A return spring 15 is fixed between the protruding end 16 and the inner wall of the opening 19.

[0029] In the actual operation of this utility model, if the radius of the connecting hole on the circuit board body 3 is small, the tapered head 14 can be moved upward by retracting the second electric push rod 13. At this time, the inner sides of the multiple grinding edges 9 lose the squeezing of the tapered head 14 and automatically retract into the interior of the protruding post 8, which is convenient to adapt to different connecting hole sizes. At the same time, after the adjusted protruding post 8 extends into the connecting hole, the tapered head 14 can be extended downward again, so that the extended grinding edges 9 can grind the connecting hole. The radius of the connecting hole is increased by grinding, reducing the subsequent reprocessing steps.

Claims

1. An instrument circuit board testing device, comprising a fixing base (1), characterized in that: The fixed base (1) is fixed with a card seat (2), and the top of the card seat (2) is provided with a card groove (10). The card groove (10) is fitted with a circuit board body (3). The circuit board body (3) is provided with a connection hole. The outer side of the card seat (2) is provided with a first electric push rod (4). The top of the multiple first electric push rods (4) is fixed with a lower pressure plate (5). The bottom of the multiple first electric push rods (4) is embedded in the top of the fixed base (1). The bottom end of the lower pressure plate (5) is rotatably connected to a rotating cylinder (7) corresponding to the position of the connecting hole. The bottom end of the rotating cylinder (7) is connected to an extension column (8). Multiple grinding ridges (9) are provided on the outer side of the extension column (8). The top end of the lower pressure plate (5) is fixed with a motor (6). The drive shaft of the motor (6) is fixedly connected to the top end of the rotating cylinder (7).

2. An apparatus for detecting a circuit board according to claim 1, wherein: The inside of the rotating drum (7) is fixed with a second electric push rod (13). The bottom end of the second electric push rod (13) is connected to a conical head (14). The conical head (14) extends into the inside of the protruding column (8). The outer side of the conical head (14) and the inner side of multiple grinding edges (9) are correspondingly fitted. The multiple grinding edges (9) have an inclined edge on the side close to the conical head (14).

3. An apparatus for detecting a circuit board according to claim 2, wherein: The bottom end of the protruding column (8) is provided with an opening (19), the opening (19) is connected to the top end of the protruding column (8), and multiple protruding grooves are provided on the outside of the protruding column (8). The multiple protruding grooves are all connected to the inside of the opening (19), and the grinding edge (9) is telescopically set in the protruding groove.

4. An apparatus for detecting a circuit board according to claim 3, wherein: Each of the multiple grinding edges (9) has a protruding end (16) fixed at the bottom end near the conical head (14), and a return spring (15) is fixed between the protruding end (16) and the inner wall of the opening (19).

5. An apparatus for detecting a circuit board according to claim 1, wherein: A spring telescopic rod (17) is fixed at the middle of the bottom end of the lower pressure plate (5), and a pressure plate (18) is fixed at the bottom end of the spring telescopic rod (17). The bottom end of the pressure plate (18) is pressed against the top end of the circuit board body (3).

6. An apparatus for detecting a circuit board according to claim 1, wherein: The card holder (2) has a support base (11) fixed inside, and the support base (11) has an insertion hole (12) for the corresponding protruding post (8) to be inserted.

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