CN111736072A - Automatic test device, test method and air conditioner - Google Patents

Abstract

The invention discloses an automatic testing device, a testing method and an air conditioner. The automatic testing device includes a testing mechanism for testing a test piece, and also includes a positioning mechanism, which is arranged on a production line and is used for positioning the test piece on the test piece. Position; plug-in mechanism, which cooperates with the positioning mechanism and is used for plugging with the DUT to make the DUT enter the test state; the plug-in mechanism includes a plug for plugging in and electrifying the DUT, the DUT When it is in the test position, it drives the plug to insert or pull out the plug-in mechanism of the DUT. The invention has the effects of timely positioning and automatic wire plugging, which replaces manual wire plugging operations, reduces labor intensity, saves labor costs, and at the same time improves automation and improves work efficiency.

Description

Automatic test device, test method and air conditioner

technical field

The invention relates to the technical field of air-conditioning parts production, in particular to an automatic testing device, a testing method and an air conditioner.

Background technique

There are many parts and types in the air-conditioning production industry, and there are a large number of electrical components that need to be tested for performance after production, such as drive boxes, which need to be transported to the test position after production is completed. When the plug-in is powered on, since the rocker of the drive box will swing at a certain angle after it is powered on, the tester judges whether the product is qualified according to whether it swings to the specified angle, the test efficiency is low, and the labor intensity is also high. Bad for production.

The Chinese patent with the publication number of CN208399651U and the patent name of "A VCM Motor Detector" discloses a detection device, which includes a worktable, on which a tooling fixture for placing the motor to be tested is installed, and a The inspection head for inspection, the tooling fixture includes a probe device for connecting current to the motor to be inspected. When testing, first limit the motor and adjust the position of the probe device through a series of complex operations, so that when the motor is fixed, it is also connected to the probe device to achieve power-on, and finally the detection head is adjusted to detect the motor.

The above-mentioned device uses a probe instead of a manual plug for power-on test, but it needs to align the probe with the position of the motor to be detected in advance during installation, and the position of the probe device often needs to be adjusted according to the different fixing methods of the motor. , the overall installation and positioning process is complex, and the test efficiency is still relatively low.

SUMMARY OF THE INVENTION

In order to solve the defect of low plug-in test efficiency in the prior art, the present invention provides an automatic test device.

The technical scheme adopted by the present invention is, an automatic test device, including a test mechanism for testing the test piece, and also includes:

The positioning mechanism is arranged on the production line and used to position the test piece at the test position;

The plug-in mechanism, in cooperation with the positioning mechanism, is used for plugging with the DUT to make the DUT enter the testing state;

The plug-in mechanism includes a plug for inserting and energizing the DUT, and a plug-in mechanism for driving the plug to insert or pull out the DUT when the DUT is at the test position.

Preferably, the plug-in mechanism includes a first mounting plate, a plug-in cylinder fixed on the first installation plate and located just above the test position, and the plug is fixed on the bottom of the plug-in cylinder and is directly above the test position. For the jacks opened on the DUT.

Preferably, a wire fixing plate is fixedly connected to the bottom of the plug-in cylinder, and the plug is fixed on the bottom of the wire fixing plate.

Preferably, the testing mechanism includes at least one proximity switch matched with the DUT, after the plug is inserted into the DUT, the DUT performs a test action, and when the DUT performs the test action to a qualified position, it touches the Connect and trigger the proximity switch.

Preferably, the test mechanism further includes a second mounting plate, a test cylinder is provided on the second mounting plate, and the proximity switch is fixedly connected to the bottom of the test cylinder.

Preferably, the positioning mechanism includes a frame, a pair of clamping plates slidably connected to opposite sides of the frame, and a clamping cylinder for driving a pair of the clamping plates to approach or move away from each other.

Preferably, the entire length or part of the clamping plate is provided with a notch, and some of the notches are positioned opposite to each other. When the DUT is clamped and fixed between a pair of clamping plates, the DUT is located in the test location.

Further, it also includes a jacking mechanism, the jacking mechanism is located directly below the positioning mechanism, and the top of the jacking mechanism is lower than the conveyor belt for transporting the test piece, when the conveyor belt transports the test piece to the top. When the lifting mechanism is directly above the lifting mechanism, the test piece is lifted into the positioning mechanism by the lifting mechanism.

Preferably, the jacking mechanism includes a jacking plate and a jacking cylinder, and the jacking plate is provided with a plurality of protruding positioning protrusions for inserting and positioning with the grooves provided on the bottom surface of the test piece.

The present invention also proposes an automatic testing method, which adopts the automatic testing device as described above, and specifically includes the following steps:

The conveyor belt of the production line transports the DUT directly above the jacking mechanism; the jacking mechanism is activated to lift the DUT into the positioning mechanism; the positioning mechanism is activated to fix the DUT to the test position, and the jacking mechanism retracts and returns to its original position ;Start the plug-in mechanism and the test mechanism to carry out the test; after the test, the plug-in mechanism and the test mechanism are reset, and at the same time, the jacking mechanism rises to carry the DUT that has completed the test; the positioning mechanism removes the fixing of the DUT that has completed the test And the limit, the jacking mechanism is reset and the test piece that has completed the test is placed on the conveyor belt to complete the test.

The present invention also provides an air conditioner, and the air conditioner is tested by using the aforementioned automatic testing device.

Compared with the prior art, the present invention will have the following beneficial effects:

1. It has the effect of timely positioning and automatic plugging, which replaces the operation of manual plugging, reduces labor intensity, saves labor costs, and at the same time improves automation and improves work efficiency;

2. The quantitative test of each product is carried out by a testing agency, which is based on evidence, improves the accuracy of product quality testing, and records the test results of each product;

3. By setting the jacking mechanism, each product can be fixed on the positioning mechanism above the conveyor belt during the quality test, so as not to affect the normal flow of the conveyor belt and effectively improve the production efficiency.

Description of drawings

Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail, wherein:

Fig. 1 is the overall structure schematic diagram of the automatic test device in the present embodiment;

Fig. 2 is the structural schematic diagram of the test mechanism, the plug-in mechanism and the process board;

Fig. 3 is the structural representation of the fixing mechanism;

Figure 4 is an isometric view of the clamping plate;

Figure 5 is a front view of the clamping plate;

Figure 6 is a right side view of the clamping plate;

Figure 7 is a schematic structural diagram of a jacking mechanism;

Fig. 8 is the production line structure schematic diagram in the present embodiment;

FIG. 9 is a flow chart of the steps of this embodiment.

1. Positioning mechanism; 2. Wiring mechanism; 3. Testing mechanism; 4. First mounting plate; 5. Plug-in cylinder; 6. Fixing plate; 7. Proximity switch; 8. Second mounting plate; 9. Test Cylinder; 10, frame; 11, clamping plate; 111, panel; 112, folding plate; 113, side plate; 12, clamping cylinder; 13, fixing plate; 14, jacking mechanism; 15, jacking plate; 16. Lifting cylinder; 17. Positioning protrusion; 18. Fixed seat; 19. Drive box; 20. Process board; 21. Slide rail; 22. Conveyor belt.

Detailed ways

An automatic test device, as shown in Figures 1 and 2, includes a positioning mechanism 1 for positioning the DUT at the test position, a plug-in mechanism 2 for plugging into the DUT to make it energized, and for testing whether the DUT is energized. Qualified testing mechanism 3, and a jacking mechanism 14 that lifts the DUT into the positioning mechanism 1, and the plug-in mechanism 2 includes a plug for plugging in and electrifying the DUT, and the DUT is located at the test position When driving the plug to insert or pull out the plug-in mechanism of the DUT.

This embodiment is applied to the production process of the drive box 19. After the drive box 19 is produced, it needs to be transported to the test position for performance testing. Since the rocker of the drive box 19 will swing at a certain angle after power-on Swing to the specified angle to judge whether the product is qualified. In order to cooperate with the assembly line operation, as shown in FIGS. 1 and 2 , in this embodiment, when producing the driving boxes 19 , a process board 20 is used to pre-install and position the driving boxes 19 , and the driving boxes 19 are paired when they are detected. At the same time, a plug-in board is installed on the process board 20, and the plug-in board is provided with a socket corresponding to the plug-in mechanism 2. Of course, the plug-in board is electrically connected with the two drive boxes 19. When the mechanism 2 is inserted into the jack, it can ensure that both drive boxes 19 are powered on.

As shown in FIGS. 1 and 3 , the positioning mechanism 1 includes a frame 10 , a pair of clamping plates 11 slidably connected on both sides of the frame 10 , and a pair of clamping plates 11 for driving a pair of the clamping plates 11 to approach or move away from each other. Cylinder 12, the entire length or part of the clamping plate 11 is provided with a notch, and the part of the notch is located opposite. When the DUT is clamped and fixed between a pair of clamping plates 11, the DUT is located in the test location. In the present embodiment, the rack 10 is a frame-shaped arrangement with a height, a pair of side walls are mounted with slide rails 21, and the other pair of side walls are fixed with two opposite fixing plates 13, each fixing plate Clamping cylinders 12 are installed on the 13 , and the two clamping cylinders 12 are arranged opposite to each other.

Specifically, as shown in FIGS. 4-6 , the clamping plate 11 includes a panel 111 , a side panel 113 and a folded panel 112 . The side panels 113 have two and are vertically arranged at both ends of the panel 111 . The ends of the panel 111 are either The side plate 113 is slidably connected to the slide rail 21 . The folded plate 112 is fixedly connected to the bottom of the panel 111 , and the folded plate 112 and the panel 111 are surrounded by a recessed slot, and the pair of clamping plates 11 form a pair of slots with opposite positions and opposite openings. For placing and fixing the craft board 20. When the process board 20 enters the pair of slots, the two clamping cylinders 12 act simultaneously, and the pair of clamping boards 11 approach each other, so that the process board 20 and the drive box 19 are fixed in the test position.

Further, as shown in FIGS. 1 and 2 , the plug-in mechanism includes a first mounting plate 4 fixed on the fixing plate 13 , a plug-in cylinder 5 fixed on the first mounting plate 4 and located just above the test position , the plug is fixed on the bottom of the plug cylinder 5 and faces the jack. In this embodiment, a fixing plate 6 is fixedly connected to the bottom of the plug cylinder 5, and the plug and its wiring are fixed on the fixing plate 6 within. When the craft board 20 is clamped and positioned by the pair of clamping plates 11 , the plug-in cylinder 5 is activated and drives the plug to descend until it is inserted into the socket, so that both drive boxes 19 are powered on.

Since the rocker on the drive box 19 will swing after power-on, and swing to a certain angle is qualified, as shown in FIGS. 1 and 2 , the test mechanism 3 includes the second mounting plate 8 fixed on the fixing plate 13 and the At least one proximity switch 7 matched with the DUT, the second mounting plate 8 is provided with a test cylinder 9 , and the proximity switch 7 is fixedly connected to the bottom of the test cylinder 9 . In this embodiment, the second mounting plate 8 and the first mounting plate 4 are fixed on the fixing plate 13 on the same side, and the two have the same structure. A horizontal plate is fixed at the bottom of the test cylinder 9, and the two ends of the horizontal plate are respectively A proximity switch 7 is installed, so that it can cooperate with the two drive boxes 19 fixed on a craft board 20 at the same time. When the rocker starts to swing, the test cylinder 9 transports the proximity switch 7 down to a specified height in advance, and the rocker starts to swing. When the rod swings to a qualified angle, the rocker sticks against the proximity switch 7, and the proximity switch 7 is triggered at this time, which means that the quality of the drive box 19 is qualified.

Of course, a signal feedback system can also be connected to the proximity switch 7, which can collect and feedback the signal of whether the proximity switch 7 is triggered or not in time, so as to realize more automatic feedback and action execution. The solution can refer to the existing technology, such as a buzzer , infrared display lights, etc. are used as prompts, which are not described in detail in this embodiment. Meanwhile, in another embodiment, the proximity switch 7 can also be replaced by other position sensing devices, such as infrared sensing devices, proximity switches of different models, and the like.

As shown in FIGS. 1 and 7 , the jacking mechanism 14 is located directly below the positioning mechanism 1 , and the top of the jacking mechanism 14 is lower than the conveyor belt 22 for transporting the drive box 19 . When the conveyor belt 22 lifts the process board 20 When conveyed to just above the lifting mechanism 14 , the lifting mechanism 14 lifts the process board 20 into the positioning mechanism 1 . The jacking mechanism 14 includes a jacking plate 15 , a jacking cylinder 16 and a fixed seat 18 , and four protruding positioning protrusions 17 are provided at the four corners of the jacking plate 15 , which are used for concave holes arranged on the bottom surface of the process plate 20 . The slot is inserted and positioned, and the process board 20 is placed in a sliding displacement during the lifting process. Since the jacking mechanism 14 is provided, each process board 20 is fixed in the positioning mechanism 1 above the conveyor belt 22 during testing, and as long as the jacking cylinder 16 is retracted in time, the conveyor belt 22 can continue to carry out normal conveying It can effectively improve the work efficiency of the overall flow operation.

Further, the present embodiment discloses an automatic testing method, as shown in FIG. 9 , which is performed using the automatic testing device according to claim 1, and specifically includes the following steps:

The conveyor belt of the production line transports the DUT directly above the jacking mechanism; the jacking mechanism is activated to lift the DUT into the positioning mechanism; the positioning mechanism is activated to fix the DUT to the test position, and the jacking mechanism retracts and returns to its original position ;Start the plug-in mechanism and the test mechanism to carry out the test; after the test, the plug-in mechanism and the test mechanism are reset, and at the same time, the jacking mechanism rises to carry the DUT that has completed the test; the positioning mechanism removes the fixing of the DUT that has completed the test And the limit, the jacking mechanism is reset and the test piece that has completed the test is placed on the conveyor belt to complete the test.

Further, this embodiment also discloses an air conditioner, and the air conditioner is tested by using the aforementioned automatic testing device.

Specifically, the working principle of this embodiment is as follows: when each process board 20 transported by the conveyor belt 22 reaches directly above the lifting mechanism 14 , the lifting mechanism 14 lifts the process board 20 upward to the positioning mechanism 1 . A pair of clamping plates 11 in the positioning mechanism 1 move towards each other to clamp the process board 20, so that the process board 20 and the two drive boxes 19 on it are positioned at the test position, the lifting cylinder 16 returns to the original position, and the conveyor belt 22 continues to run . At this time, the plug-in cylinder 5 drives the plug down until it is inserted into the jack, and at the same time, the test cylinder 9 drives the proximity switch 7 to descend to a specified height, and judges the drive box to be tested by whether the rocker can swing to the corresponding proximity switch 7 or not. 19 Whether the quality is qualified. After the test is completed, both the plug-in cylinder 5 and the test cylinder 9 rise, the jacking cylinder 16 drives the lifting plate 15 to rise and supports the process board 20, the clamping cylinder 12 retracts and drives the pair of clamping plates 11 away, and the lifting cylinder 16 Descending and driving the process board 20 back to the conveyor belt 22 to complete the test, the conveyor belt 22 drives the process board 20 to continue to move forward and enter the next process.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (11)

1. an automatic test device, comprising a test mechanism (3) for testing a test piece, characterized in that, also comprising: a positioning mechanism (1), which is arranged on the production line and is used for positioning the test piece at the test position; a wire plugging mechanism (2), which cooperates with the positioning mechanism and is used for plugging with the DUT to make the DUT enter the testing state; The plug-in mechanism (2) includes a plug for inserting and energizing the DUT, and a plug-in mechanism for driving the plug to insert or pull out the DUT when the DUT is in the test position. 2 . The automatic test device according to claim 1 , wherein the plug-in mechanism comprises a first mounting plate ( 4 ), which is fixed on the first mounting plate ( 4 ) and is located in the right direction of the test position. 3 . For the plug-in cylinder (5) above, the plug is fixed on the bottom of the plug-in cylinder (5) and faces the jack opening on the test piece. 3. The automatic test device according to claim 2, characterized in that, a fixing plate (6) is fixedly connected to the bottom of the plug cylinder (5), and the plug is fixed on the bottom of the fixing plate (6). bottom. 4. The automatic test device according to claim 1, wherein the test mechanism (3) comprises at least one proximity switch (7) matched with the test piece, and after the plug is inserted into the test piece, The test piece performs the test action, and when the test piece performs the test action to the qualified position, it abuts and triggers the proximity switch (7). 5. The automatic testing device according to claim 4, characterized in that, the testing mechanism (3) further comprises a second mounting plate (8), and a testing cylinder (9) is provided on the second mounting plate (8). ), the proximity switch (7) is fixedly connected to the bottom of the test cylinder (9). 6. The automatic test device according to claim 1, wherein the positioning mechanism (1) comprises a frame (10), a pair of clamping plates (11) slidably connected to opposite sides of the frame (10) ), and a clamping cylinder (12) that drives a pair of the clamping plates (11) to approach or move away from each other. 7 . The automatic testing device according to claim 6 , wherein the entire length or part of the clamping plate ( 11 ) is provided with a notch, and the part of the notch provided is positioned opposite to each other, and the DUT is clamped. 8 . When fixed between a pair of clamping plates (11), the DUT is located at the test position. 8. The automatic testing device according to claim 1, characterized in that, the automatic testing device further comprises a jacking mechanism (14), and the jacking mechanism (14) is located directly below the positioning mechanism (1) , and the top of the jacking mechanism (14) is lower than the conveyor belt (22) transporting the test piece in the production line, when the conveyor belt (22) transports the test piece to the top of the jacking mechanism (14), The lifting mechanism (14) lifts the test piece into the positioning mechanism (1). 9. The automatic testing device according to claim 8, characterized in that, the jacking mechanism (14) comprises a jacking plate (15) and a jacking cylinder (16), and the jacking plate (15) is on the A plurality of protruding positioning protrusions (17) are provided, which are used for inserting and positioning with the grooves provided on the bottom surface of the test piece. 10. an automatic testing method, is characterized in that, adopts automatic testing device as claimed in claim 1 to carry out, specifically comprises steps as follows: The conveyor belt (22) of the production line transports the DUT directly above the jacking mechanism; the jacking mechanism is activated to lift the DUT into the positioning mechanism; the positioning mechanism is activated to fix the DUT to the test position, while the jacking mechanism Retract and return to position; start the plug-in mechanism and the test mechanism for testing; after the test, the plug-in mechanism and the test mechanism are reset, and at the same time the jack-up mechanism rises to carry the DUT that has completed the test; the positioning mechanism removes the DUT for the completed test Fix and limit the parts, reset the jacking mechanism and place the tested parts that have completed the test on the conveyor belt (22) to complete the test. 11. An air conditioner, characterized in that: the air conditioner is tested by using the automatic testing device according to any one of claims 1-9.

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