CN219456398U - Automatic testing device for PCBA of intelligent electric meter - Google Patents

Abstract

The utility model belongs to the technical field of ammeter test equipment, in particular to an automatic testing device of an intelligent ammeter PCBA, which comprises an automatic testing machine, wherein the automatic testing machine is connected with a needle bed through an air cylinder, a bearing seat is also fixed on a test board of the automatic testing machine, a tested circuit board is also included, one side of the automatic testing machine, which is close to the bearing seat, and the upper end of the bearing seat are provided with matched pre-positioning mechanisms, and the pre-positioning mechanisms and the inner part of the test board in the automatic testing machine are also provided with a stripping mechanism.

Description

Automatic testing device for PCBA of intelligent electric meter

Technical Field

The utility model belongs to the technical field of ammeter test equipment, and particularly relates to an automatic testing device for a PCBA of an intelligent ammeter.

Background

The Chinese name of the CBA is a printed circuit board, a printed circuit board or a printed circuit board, the PCB blank is subjected to SMT (surface mount technology) loading, and then the PCBA is a core component of an ammeter, and the detection ammeter is used for detecting the PCBA through the whole process of the DIP plug-in;

through investigation publication (bulletin) number: CN206193182U discloses an automatic testing device for a PCBA of an intelligent electric meter, in which the main structure comprises a base, a wire passing groove, a switch, an indicator lamp, a circuit board, a bearing seat, a mounting seat, a first connecting plate, a sliding rail, a second connecting plate, a needle bed, a lifting cylinder and a bar code gun, etc., and the technical scheme is that the automatic testing device for the PCBA of the intelligent electric meter can test 2 paths of power consumption, 8 paths of voltage, infrared communication, RS485 communication, carrier communication, uncapping times, a gate pulling lamp and an alarm lamp project, collect bar codes for data tracing, the needle bed and the bar code gun upload test data and the bar codes to an upper computer through the circuit board in real time for display, storage, preservation and analysis, thus achieving the purposes of reducing staff and efficiency, improving the reliability and accuracy of the test, reducing time and economic cost, lightening labor intensity of staff, saving energy and protecting environment, meeting the technical effects of time development process, etc.;

however, because the circuit board is directly placed on the bearing seat through the locating pin, uneven phenomenon may occur in the placing process, if the needle bed is directly tested at the moment, the circuit board and the needle bed are damaged, and the testing stability and the safety are still to be improved; secondly, the circuit board needs to be buckled from the bearing seat after detection, and the convenience of taking after testing is poor, so that the testing efficiency is affected;

in order to solve the problem, the application provides an automatic testing device for a PCBA of an intelligent electric meter.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides an automatic testing device for a PCBA of a smart electric meter, which has the characteristics of improving the detection stability and automatically returning materials.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic testing arrangement of smart electric meter PCBA, includes automatic testing machine, automatic testing machine is connected with the needle bed through the cylinder, just still be fixed with the socket on automatic testing machine's the testboard, still include the circuit board of being surveyed, automatic testing machine is close to socket one side and socket upper end and is equipped with complex pre-positioning mechanism, the inside of testboard still is provided with in pre-positioning mechanism and the automatic testing machine takes off material mechanism.

As an optimal technical scheme of the intelligent ammeter PCBA automatic testing device, the pre-positioning mechanism comprises a reset sleeve fixed on two sides of an automatic testing machine, a telescopic rod elastically connected to the lower end inside the reset sleeve through a reset spring, a pre-positioning plate fixed at the bottom of the telescopic rod, a mounting plate fixed on the rear side of a circuit board, a top pin connected to the mounting plate through a return spring and long positioning pins fixed on the upper surface of a bearing seat and distributed in an anastomotic manner with the contour of the circuit board.

As an optimal technical scheme of the intelligent ammeter PCBA automatic testing device, the telescopic rod stretches inside the reset sleeve, the reset spring and the telescopic rod are two groups which are symmetrical, two ends of the pre-positioning plate are fixed with the two telescopic rods, and the bottom of the ejector pin penetrates through the lower ends of the mounting plate and the circuit board under the action of the reset spring.

As an optimal technical scheme of the intelligent ammeter PCBA automatic testing device, the ejector pin is driven by an air cylinder connected with a needle bed in an automatic testing machine to move downwards and then is contacted with the upper surface of the pre-positioning plate.

As an optimal technical scheme of the intelligent ammeter PCBA automatic testing device, the stripping mechanism comprises a telescopic sleeve fixed at the bottom of a preset positioning plate, a telescopic pin sliding in the telescopic sleeve, a connecting rod fixed at the bottom of one side of the telescopic pin and a stripping top disc fixed at the other end of the connecting rod.

As an optimal technical scheme of the intelligent ammeter PCBA automatic testing device, a movable groove for the stripping mechanism is formed in a detection table and a bearing seat in the automatic testing machine, the movable groove structure is matched with the stripping mechanism, and the telescopic travel of a telescopic sleeve and a telescopic pin is smaller than that of a reset sleeve and a telescopic rod.

Compared with the prior art, the utility model has the beneficial effects that: firstly, a pre-positioning mechanism is arranged at the part for testing in the needle bed and the automatic testing machine, and the pre-positioning mechanism is contacted with the circuit board preferentially under the action of downward movement of the air cylinder, so that the pre-positioning mechanism is firstly stabilized on the bearing seat, then the needle bed is used for testing, the stability and the safety of the testing are ensured, and the loss caused by uneven placement of the circuit board is avoided; and a stripping mechanism is arranged between the pre-positioning mechanism and the automatic testing machine, and the stripping mechanism automatically breaks away from the tested circuit board from the bearing seat after testing, so that the periphery of the circuit board is in a suspended state, and the circuit board can be directly taken out from the device at the moment, thereby effectively improving the material taking speed.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic view of the bottom view of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 1 in partial cutaway in the present utility model;

FIG. 4 is a schematic diagram of the front view of the present utility model during testing;

FIG. 5 is a schematic view of the present utility model, partially cut away from the front view of FIG. 4;

FIG. 6 is a partially exploded view of the pre-positioning mechanism of the present utility model;

in the figure: 1. an automatic tester; 11. a needle bed; 12. a socket; 2. a circuit board; 3. a pre-positioning mechanism; 31. resetting the sleeve; 32. a return spring; 33. a telescopic rod; 34. a pre-positioning plate; 35. a knock pin; 36. a return spring; 37. a long locating pin; 4. a stripping mechanism; 41. a telescopic sleeve; 42. a telescopic pin; 43. a connecting rod; 44. and (5) removing the material top tray.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-6, the present utility model provides the following technical solutions: the utility model discloses an automatic testing device for a PCBA of an intelligent ammeter, which comprises an automatic testing machine 1, wherein the automatic testing machine 1 is connected with a needle bed 11 through an air cylinder, a bearing seat 12 is further fixed on a testing table of the automatic testing machine 1, the automatic testing machine also comprises a tested circuit board 2, one side of the automatic testing machine 1 close to the bearing seat 12 and the upper end of the bearing seat 12 are provided with matched pre-positioning mechanisms 3, the pre-positioning mechanisms 3 and the inside of the testing table in the automatic testing machine 1 are also provided with a stripping mechanism 4, and in the embodiment, the automatic testing machine 1 is not influenced by normal work when being installed, and the automatic testing machine 1 is installed in a yielding way by matching.

Specifically, the pre-positioning mechanism 3 includes a reset sleeve 31 fixed at two sides of the automatic testing machine 1, a telescopic rod 33 elastically connected to the lower end inside the reset sleeve 31 through a reset spring 32, a pre-positioning plate 34 fixed at the bottom of the telescopic rod 33, a mounting plate fixed at the rear side of the circuit board 2, a top pin 35 connected to the mounting plate through a return spring 36, and a long positioning pin 37 fixed on the upper surface of the bearing seat 12 and distributed in a matched manner with the contour of the circuit board 2, the telescopic rod 33 stretches and contracts inside the reset sleeve 31, the reset spring 32 and the telescopic rod 33 are two groups symmetrical, two ends of the pre-positioning plate 34 are fixed with the two telescopic rods 33, the top pin 35 penetrates through the lower ends of the mounting plate and the circuit board 2 under the action of the return spring 36, and then contacts with the upper surface of the pre-positioning plate 34 after being driven to move downwards by a cylinder connected with the needle bed 11 in the automatic testing machine 1, in this embodiment, the pre-positioning mechanism 3 contacts with the circuit board 2 preferentially under the action of moving downwards in a cylinder, so that the pre-positioning mechanism is firstly stabilized on the bearing seat 12, and then the needle bed 11 is tested, and then the safety loss caused by the fact that the circuit board is not placed is avoided.

Specifically, the stripping mechanism 4 includes a telescopic sleeve 41 fixed at the bottom of the pre-positioning plate 34, a telescopic pin 42 sliding inside the telescopic sleeve 41, a connecting rod 43 fixed at the bottom of one side of the telescopic pin 42, and a stripping top disc 44 fixed at the other end of the connecting rod 43, wherein a movable groove for the stripping mechanism 4 is formed on the detection table and the receiving seat 12 in the automatic testing machine 1, the movable groove structure is matched with the stripping mechanism 4, the telescopic travel of the telescopic sleeve 41 and the telescopic pin 42 is smaller than that of the reset sleeve 31 and the telescopic rod 33, in this embodiment, the stripping mechanism 4 automatically breaks away the tested circuit board 2 from the receiving seat 12 after testing, so that the periphery of the circuit board 2 is in a suspended state, and the circuit board 2 can be directly taken out from the device at this time, thereby effectively improving the material taking speed.

The working principle and the using flow of the utility model are as follows: the back side of the needle bed 11 is extended and fixed with a mounting plate, the top pin 35 is reset on the mounting plate through the return spring 36, the lower end of the top pin 35 penetrates through the lower part of the mounting plate in the reset state, the telescopic rod 33 and the preset positioning plate 34 are positioned at the highest position under the action of the return spring 32, the telescopic rod 33 is completely contained in the reset sleeve 31, and the return spring 32 is smaller than the elastic force of the return spring 36; the telescopic pin 42, the connecting rod 43 and the stripping top disk 44 are in a falling state under the action of gravity, and at the moment, the upper surface of the stripping top disk 44 is positioned between the upper surface of the bearing seat 12 and the upper surface of the long positioning pin 37;

during testing, a worker places the circuit board 2 on the upper surface of the stripping top disc 44 and positions the circuit board under the action of a plurality of long positioning pins 37, an air cylinder in the automatic testing machine 1 drives the automatic testing machine 1 to move downwards, the bottom of the top pin 35 is contacted with the preset positioning plate 34 and moves continuously, the reset spring 32 is stretched, the telescopic rod 33 gradually slides downwards from the inside of the reset sleeve 31, the whole stripping mechanism 4 at the moment moves downwards, the circuit board 2 moves downwards and is supported on the supporting seat 12, finally the preset positioning plate 34 clamps the position of the non-testing part of the circuit board 2, the air cylinder continues to act, the stripping spring 36 is compressed, the top pin 35 is pressed into the inside and the upper end of the needle bed 11, the connecting rod 43 abuts against the inside of the automatic testing machine 1, the telescopic sleeve 41 continues to move downwards until the telescopic sleeve is contracted to the maximum state, and the needle bed 11 tests the circuit board 2;

after the test is finished, the cylinder drives the needle bed 11 to move upwards, the ejector pin 35 is reset under the action of the retraction spring 36, the telescopic rod 33 and the preset positioning plate 34 are reset under the action of the reset spring 32, the telescopic sleeve 41 moves upwards from the inside of the telescopic pin 42, the telescopic pin 42 is driven to synchronously move upwards when moving to the tail end, the telescopic pin 42 drives the stripping top disc 44 to also move upwards through the connecting rod 43, the circuit board 2 positioned on the bearing seat 12 is lifted upwards in the upward moving process of the stripping top disc 44, and finally, the lifted circuit board 2 is taken down from the automatic test machine 1 by a worker.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides an automatic testing arrangement of smart electric meter PCBA, includes automatic testing machine (1), automatic testing machine (1) are connected with needle bed (11) through the cylinder, just still be fixed with on the testboard of automatic testing machine (1) and hold seat (12), still include circuit board (2) of being surveyed, its characterized in that: the automatic testing machine (1) is provided with a matched pre-positioning mechanism (3) on one side close to the bearing seat (12) and the upper end of the bearing seat (12), and a stripping mechanism (4) is further arranged in the pre-positioning mechanism (3) and the testing table in the automatic testing machine (1).

2. The automatic testing device for a PCBA of a smart meter according to claim 1, wherein: the pre-positioning mechanism (3) comprises a reset sleeve (31) fixed on two sides of the automatic testing machine (1), a telescopic rod (33) elastically connected to the lower end inside the reset sleeve (31) through a reset spring (32), a pre-positioning plate (34) fixed at the bottom of the telescopic rod (33) and a mounting plate fixed on the rear side of the circuit board (2), and further comprises a top pin (35) connected to the mounting plate through a return spring (36) and a long positioning pin (37) fixed on the upper surface of the bearing seat (12) and distributed in a manner of being matched with the outline of the circuit board (2).

3. The automatic testing device for PCBA of smart meter according to claim 2, wherein: the telescopic rods (33) are also telescopic in the reset sleeve (31), the reset springs (32) and the telescopic rods (33) are two symmetrical groups, two ends of the pre-positioning plate (34) are fixed with the two telescopic rods (33), and the bottom of the ejector pin (35) penetrates through the lower ends of the mounting plate and the circuit board (2) under the action of the return springs (36).

4. The automatic testing device for PCBA of smart meter according to claim 3, wherein: the ejector pin (35) is driven by a cylinder connected with the needle bed (11) in the automatic testing machine (1) to move downwards and then is contacted with the upper surface of the pre-positioning plate (34).

5. The automatic testing device for a PCBA of a smart meter according to claim 1, wherein: the stripping mechanism (4) comprises a telescopic sleeve (41) fixed at the bottom of the preset positioning plate (34), a telescopic pin (42) sliding in the telescopic sleeve (41), a connecting rod (43) fixed at the bottom of one side of the telescopic pin (42) and a stripping top disc (44) fixed at the other end of the connecting rod (43).

6. The automatic testing device for a PCBA of a smart meter according to claim 5, wherein: the automatic testing machine is characterized in that a movable groove for the stripping mechanism (4) is formed in the detection table and the receiving seat (12) in the automatic testing machine (1), the movable groove structure is matched with the stripping mechanism (4), and the telescopic travel of the telescopic sleeve (41) and the telescopic pin (42) is smaller than that of the reset sleeve (31) and the telescopic rod (33).