CN211014544U

CN211014544U - P L C testing arrangement

Info

Publication number: CN211014544U
Application number: CN201921843197.XU
Authority: CN
Inventors: 叶文杰; 李向阳; 孟夏萌; 王新; 丁猛
Original assignee: Nanjing Kangni Electrical Technology Co ltd
Current assignee: Nanjing Kangni Electrical Technology Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-14
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a P L C testing arrangement, including the frame and install in the heating element of frame, equipment test assembly, heating element is used for providing the hot gas flow to the P L C of test, equipment test assembly includes the bottom plate, module upper mounting plate, clamping device and probe subassembly, clamping device includes X axle clamping device, Y axle clamping device, the probe subassembly includes the input probe subassembly, the output probe subassembly, the input probe subassembly includes can follow gliding input long probe of Y axle, the short type probe of input, the input long probe, the short type probe of input still connects can follow gliding sideslip device of X axle, the output probe subassembly includes can follow gliding output long probe of Y axle, the short type probe of output.

Description

P L C testing arrangement

Technical Field

The utility model relates to a P L C tests technical field, concretely relates to P L C testing arrangement.

Background

If the aging is not carried out, a plurality of electronic component products have a plurality of problems in use due to complexity of devices, manufacturing processes and the like, therefore, in order to achieve satisfactory yield, almost all electronic component products need to be aged and then tested before leaving factories, and the P L C product is no exception.

However, the aging test inevitably brings about a plurality of cost problems, mainly due to the following problems:

1) the aging time cost.

2) The efficiency cost of both the burn-in and the test steps.

3) And (5) the equipment cost of aging test of products of the same type and different models.

Therefore, it is important to overcome the above problems of testing efficiency and cost in order to save the production cost.

SUMMERY OF THE UTILITY MODEL

For solving the not enough among the prior art, the utility model provides a P L C testing arrangement and method has solved among the prior art technical problem that P L C test is with high costs, efficient.

In order to realize the above object, the utility model adopts the following technical scheme:

a P L C testing device comprises a frame, a heating assembly and an assembly testing assembly, wherein the heating assembly is arranged on the frame and is used for providing hot air flow for tested P L C;

the assembly testing assembly comprises a bottom plate, an upper module platform, a clamping device and a probe assembly, wherein the bottom plate is connected to the frame, the clamping device comprises an X-axis clamping device and a Y-axis clamping device, the X-axis clamping device comprises an end positioning block fixedly connected to the upper module platform and a clamping pressing plate which is connected to the upper module platform and can slide relative to the end positioning block, and the Y-axis clamping device comprises a fixed side flange fixedly connected to the bottom plate and a movable side flange which can slide relative to the fixed side flange;

the probe assembly comprises an input probe assembly and an output probe assembly, the input probe assembly comprises an input end long probe and an input end short probe which can slide along the Y axis, the input end long probe and the input end short probe are also connected with a transverse moving device which can slide along the X axis,

the output probe assembly comprises an output end long probe and an output end short probe which can slide along the Y axis.

Preferably, in the P L C testing apparatus, the heating element includes a heating plate, a heat sink and a heat dissipation fan, the heat sink is connected to the heating plate, and the heat dissipation fan is used to adjust and control the aging temperature of the P L C.

Preferably, the P L C testing device further comprises an automatic door system, the automatic door system comprises a protective door, at least two guide rods, an automatic door front fixing plate and an automatic door rear fixing plate which are respectively connected to two ends of the guide rods, a pen-shaped air cylinder used for driving the protective door to slide along the guide rods is further arranged between the protective door and the automatic door rear fixing plate, and the automatic door front fixing plate and the automatic door rear fixing plate are connected to the frame.

Preferably, in the aforementioned P L C testing apparatus, the input end elongated probe is further provided with a positioning device for locking the traverse device when the input end elongated probe is connected to the input port of the P L C.

Preferably, in the P L C testing device, the assembly testing module further includes a presence detecting sensor for detecting whether P L C is present.

Preferably, the P L C test apparatus further comprises a plurality of clamp detection sensors for detecting the position of the clamp platen.

Preferably, in the P L C testing apparatus, the traverse device includes a linear slide rail and a transposition slider capable of sliding along the linear slide rail, and the transposition slider is connected to the transposition cylinder.

Preferably, the P L C testing device further includes a plurality of transposition detection sensors for detecting the positions of the transposition sliders.

Preferably, in the P L C testing device, the inner edge of the input probe assembly is further provided with a travel switch depression bar, the travel switch depression bar is connected with a depression bar detection sensor, and the depression bar detection sensor is connected with an alarm prompting device.

The utility model discloses the beneficial effect who reaches:

compared with the prior art, the utility model discloses degree of automation is higher, not only can directly test after ageing P L C, and the test procedure is succinct, quick, promotes aging testing efficiency, moreover the utility model discloses can age and test multiple P L C, reduce multiple P L C aging testing's equipment cost.

The utility model discloses a prevent that anti-measure can avoid P L C to be put conversely.

The utility model discloses a safety protection measure can avoid the probe mistake circular telegram, ensures that the probe connection circular telegram again after correct.

The utility model discloses a maloperation safeguard measure can avoid the input probe when not withdrawing, and the sideslip device action avoids the probe to be bent or takes place the mistake with P L C's input port and touches.

Drawings

FIG. 1 is an isometric view of the overall structure of the present invention;

FIG. 2 is an isometric view of the assembly test assembly of the present invention;

FIG. 3 is a top view of the assembly test assembly of the present invention;

FIG. 4 is a cross-sectional view of the assembly test assembly of the present invention;

FIG. 5 is an elevation view of the assembly test assembly of the present invention;

figure 6 is a front view of the heating assembly of the present invention;

figure 7 is an isometric view of an automatic door system of the present invention;

the meaning of the reference numerals: 1-a button panel; 2-warning mark; 4-a frame; 5-pen cylinder; 6-cylinder connecting bracket; 7-automatic door front fixed plate; 8-guide rod fixing seat; 9-a guide rod; 10-linear bearings; 11-linear bearing pads; 12-a guard gate; 13-a transparent plate; 14-automatic door rear fixing plate; 15-heating assembly base plate; 16-constant temperature heating plate; 17-a temperature sensor; 18-a heat sink; 19-a metal protective cover; 20-a heat dissipation fan; 21-a bottom plate; 22-presence detection sensor; 23-end positioning blocks; 24-elongated probe mounting plate; 25-a linear slide rail fixing block; 26-a linear slide rail; 27-transposition sliding plate; 28-transposition shifting sheet; 29-a transposed cylinder; 30-transposition cylinder mounting base; 31-transposition adjusting screw; 32-short probe mounting plate; 33-clamping the press plate; 34-a clamping pad block; 35-movable side flanges; 36-a module upper platform; 37-base column; 38-output end thin cylinder I; 39-output end elongated probe; 40-output end thin cylinder II; 41-short probe at output end; 42-travel switch depression bar; 43-input end elongated probe; 44-input end thin cylinder I; 45-transposition detection of the first bolt; 46-short type probe at input end; 47-input end thin cylinder II; 48-transposition detection of a second bolt; 49-clamping the detection bolt; 50-clamping the fixing plate; 51-a movable flange thin cylinder; 52-clamping thin cylinder; 53-a bead detection sensor; 54-grip detection sensor one; 55-transposition detection sensor I; 56-universal test sensor mount; 57-transposition detection sensor II; 58-grip detection sensor two; 59-general cylinder connection block; 60-a probe; 61-fixed side flanges; 62-safety protection bolt.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 7, the present embodiment discloses a P L C testing apparatus, which includes a frame 4, a heating element mounted on the frame 4, and an assembly testing element, wherein the heating element is used for providing hot air flow to the tested P L C to age the P L C, the frame 4 includes a frame body and a cover, and the cover is provided with a button panel 1 and a warning mark 2 for operating the present embodiment.

The assembly test assembly comprises a bottom plate 21, an upper module platform 36, a clamping device and a probe assembly, wherein the bottom plate 21 is arranged on the frame 4, and the bottom plate 21 is connected to the upper module platform 36 through a plurality of base upright posts 37 with equal length to divide the whole assembly test assembly into two layers.

The clamping device is used for clamping P L C to be tested and comprises an X-axis clamping device and a Y-axis clamping device, wherein the X-axis clamping device comprises an end positioning block 23 fixedly connected to an upper platform 36 of a module and a clamping pressure plate 33 connected to the upper platform 36 of the module and capable of sliding relative to the end positioning block 23, an elastic clamping cushion block 34 is arranged on the clamping surface of the clamping pressure plate 33 and used for protecting the P L C and increasing the clamping elasticity, and the clamping pressure plate 33 is driven by a clamping thin cylinder 52 arranged on the lower surface of the upper platform 36 of the module.

The Y-axis clamping device comprises a fixed side flange 61 fixedly connected to the bottom plate 21 and a movable side flange 35 capable of sliding relative to the fixed side flange 61; the movable side flanges 35 are driven by movable flange thin cylinders 51 mounted on the lower surface of the module upper platform 36.

The probe assembly is used for connecting each port of the P L C through a plurality of probes 60 to realize the electric connection with the P L C, and comprises an input probe assembly and an output probe assembly, wherein the input probe assembly comprises an input end long probe 43 and an input end short probe 46 which can slide along the Y axis, the two probes are respectively driven by an input end thin cylinder I44 and an input end thin cylinder II 47, the input end thin cylinder I44 and the input end thin cylinder II 47 are installed on the traversing device, and the moving direction of the traversing device (the moving direction of the traversing device is the X direction in fig. 2) is vertical to the stretching direction of the input end thin cylinder I44 and the input end thin cylinder II 47.

The traverse device of the embodiment comprises a linear slide rail 26 and a transposition slide block 27 capable of sliding along the linear slide rail 26, wherein the transposition slide block 27 is connected with a transposition air cylinder 29. In order to detect the lateral moving positions of the long probe 43 at the input end and the short probe 46 at the input end, a plurality of transposition detection sensors are further provided in this embodiment, and specifically include a first transposition detection sensor 55 and a second transposition detection sensor 57 for detecting the position of the transposition slider 27, and both the first transposition detection sensor 55 and the second transposition detection sensor 57 are mounted on the bottom plate 21 through a universal detection sensor bracket 56.

The output probe assembly comprises an output end long probe 39 and an output end short probe 41 which can slide along the Y axis, wherein the output end long probe 39 and the output end short probe 41 are respectively driven by a first output end thin air cylinder 38 and a second output end thin air cylinder 40. It should be noted that: the output end long type probe 39, the output end short type probe 41, the input end long type probe 43 and the input end short type probe 46 are all a plurality of probe sets consisting of a plurality of probes 60, and in order to facilitate the connection and replacement of the probes 60, the output end short type probe 41 and the output end thin type cylinder II 40 are connected, and the input end short type probe 46 and the input end thin type cylinder II 47 are connected through the short type probe mounting plate 32; similarly, the output end thin cylinder one 38 and the output end long probe 39, and the input end long probe 43 and the input end thin cylinder one 44 are connected by the long probe mounting plate 24.

The assembly test assembly of the present embodiment also includes a presence detection sensor 22 for detecting the presence of P L C.

In order to avoid the P L C placement error, the inner edge of the input probe assembly of the embodiment is further provided with a travel switch pressing bar 42, the travel switch pressing bar 42 is connected with a pressing bar detection sensor 53, and the pressing bar detection sensor 53 is connected with an alarm prompting device.

The P L C aging device is integrated on the heating assembly, the equipment cost and the time cost of a P L C aging test are reduced, the P L C aging test device is used for simulating the service life of P L C under an overload working environment, the P L C is tested after aging on the embodiment, namely hot air is provided for the P L C, the heating assembly comprises a heating plate 16, a radiating fin 18 and a radiating fan 20, the radiating fin 18 is connected to the heating plate 16, the radiating fan 20 is used for adjusting and controlling the aging temperature of the P L C, and for convenience of temperature control, the P L C aging test device further comprises a temperature sensor 17 used for detecting the temperature of the heating plate 16 in real time, and a heating assembly bottom plate 15 used for being connected to a.

With reference to fig. 1 and 7: the embodiment further comprises an automatic door system, the automatic door system comprises a protective door 12, at least two guide rods 9, an automatic door front fixing plate 7 and an automatic door rear fixing plate 14 which are connected to two ends of the guide rods 9 respectively, a pen-shaped air cylinder 5 used for driving the protective door 12 to slide along the guide rods 9 is further arranged between the protective door 12 and the automatic door rear fixing plate 14, the automatic door front fixing plate 7 and the automatic door rear fixing plate 14 are connected to a housing of the frame, and the protective door 12 is preferably further provided with a transparent plate 13 used for observing the inside.

The embodiment also discloses a P L C testing method, which is described by taking two types of P L C, namely SIEMENS CPU SR40 and CPU SR20, as an example, wherein the two types of P L C are different in length and width, and slightly different in P L C interface position.

When the P L C is placed on the assembly test assembly, after the presence detection sensor 22 detects that the P L C is successfully placed, the movable side flange 35 pushes one side of the P L C until the movable side flange is pushed to the fixed side flange 61, a fine gap is reserved, the P L C can slide in the two side flanges, at this time, the P L C slides in the X direction, the clamping pressure plate 33 is operated, the clamping cushion block 34 and the end positioning block 23 jointly fix the P L C, and after the clamping pressure plate 33 is clamped, the distances between the clamping pressure plate 33 and the end positioning block 23 are different due to the difference between the lengths of SR40 and SR20, the corresponding positions of the clamping detection bolts 49 on the clamping fixing plate are different, and one of the first clamping detection sensor 54 and the second clamping detection sensor 58 is triggered by sensing.

When the P L C is CPUSR20 with short length, the first clamping detection sensor 54 is triggered by the clamping detection bolt 49, the output end long probe 39 and the output end short probe 41 extend out to be in contact with the output port of the P L C, and the input end long probe 43 is in contact with the input port of the P L C.

When the detected P L C model is SIEMENS CPU SR40, the clamping detection sensor II 58 is triggered by the clamping detection bolt 49 due to the long length, the output end long probe 39 and the output end short probe 41 extend out to be in contact with the output port of the P L C, the transposition air cylinder 29 acts to drive the transposition sliding plate 27 to move to the corresponding P L C position, and after the transposition detection sensor I55 is triggered (when the CPU SR20 is tested, the transposition detection sensor II 57 is triggered), the input end long probe 43 and the input end short probe 46 are in contact with the input port of the P L C.

When the aging test is needed, the heating assembly is started, the P L C can be aged through the heating device, the test is directly carried out after the aging is finished, and the efficiency is high.

The embodiment has the anti-reversion measures that the upper part and the lower part cannot be reversed when the P L C is placed, and the left part and the right part can be reversed, so that by utilizing the characteristic that one side of the bottom of the P L C is a right angle and the other side is an oblique angle, when the P L C is placed in a fixed position, if the P L C is reversed left and right, the right angle side is pressed on the travel switch pressure 42 bar, the pressure bar detection sensor 53 senses, and the reverse-placing error is judged.

The safety protection measures are that because two P L C, the metal probe is electrified with 220V, in order to avoid damaging the P L C and other dangers, when the P L C is the P L C with short length, the first clamping detection sensor 54 and the second transposition detection sensor 57 must simultaneously sense, the metal probe can be electrified, and when the P L C is the P L C with long length, the second clamping detection sensor 58 and the first transposition detection sensor 55 must simultaneously sense, and the metal probe can be electrified.

The misoperation prevention measure is that when the metal probe is pressed against the P L C, if the metal probe is not withdrawn, the transposition cylinder 29 is operated by mistake, the metal probe is long, narrow and thin in size and easy to damage, and the metal probe belt with 220V electricity can also damage the P L C, so that the long probe 43 at the input end is also provided with a positioning device, when the long probe 43 at the input end is connected with the input port of the P L C, the positioning device is used for locking the transverse moving device, specifically, a safety protection bolt 62 is installed on a universal cylinder connecting block of the thin cylinder I44 at the input end, meanwhile, a through hole is correspondingly formed in the retaining side 61, and when the thin cylinder I at the input end is extended, the safety protection bolt 62 is inserted into the corresponding through hole in the retaining side 61 to play the fixing and movement prevention misoperation prevention functions.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The P L C testing device is characterized by comprising a frame (4), a heating assembly and an assembly testing assembly, wherein the heating assembly is arranged on the frame (4) and is used for providing hot air flow for testing P L C;

the assembly testing assembly comprises a bottom plate (21), an upper module platform (36), a clamping device and a probe assembly, wherein the bottom plate (21) is connected to a frame (4), the clamping device comprises an X-axis clamping device and a Y-axis clamping device, the X-axis clamping device comprises an end positioning block (23) fixedly connected to the upper module platform (36) and a clamping pressing plate (33) which is connected to the upper module platform (36) and can slide relative to the end positioning block (23), and the Y-axis clamping device comprises a fixed side flange (61) fixedly connected to the bottom plate (21) and a movable side flange (35) which can slide relative to the fixed side flange (61);

the probe assembly comprises an input probe assembly and an output probe assembly, the input probe assembly comprises an input end long probe (43) and an input end short probe (46) which can slide along the Y axis, the input end long probe (43) and the input end short probe (46) are also connected with a traversing device which can slide along the X axis,

the output probe assembly comprises an output end long probe (39) and an output end short probe (41) which can slide along the Y axis.

2. The P L C testing device of claim 1, wherein the heating assembly comprises a heating plate (16), a heat sink (18), and a heat dissipation fan (20), the heat sink (18) is connected to the heating plate (16), and the heat dissipation fan is used for adjusting and controlling the temperature of P L C aging.

3. The P L C testing device of claim 1, further comprising an automatic door system, wherein the automatic door system comprises a protective door (12), at least two guide rods (9), an automatic door front fixing plate (7) and an automatic door rear fixing plate (14) which are connected to two ends of the guide rods (9) respectively, a pen-shaped air cylinder (5) for driving the protective door (12) to slide along the guide rods (9) is further arranged between the protective door (12) and the automatic door rear fixing plate (14), and the automatic door front fixing plate (7) and the automatic door rear fixing plate (14) are connected to the frame.

4. The P L C testing device of claim 3, wherein the input end long probe (43) is further provided with a positioning device for locking the traverse device when the input end long probe (43) is connected to the input port of the P L C.

5. The P L C testing device of claim 1, wherein the assembly test assembly further includes a presence detection sensor (22) for detecting the presence of P L C.

6. The P L C test device of claim 1, further comprising a plurality of pinch detection sensors for detecting the position of the pinch pressure plate (33).

7. The P L C testing device as claimed in claim 1, wherein the traverse device comprises a linear slide rail (26), and a transposition slide block (27) capable of sliding along the linear slide rail (26), and the transposition slide block (27) is connected with a transposition cylinder (29).

8. The P L C testing device of claim 7, further comprising a plurality of index detection sensors for detecting the position of the index slider (27).

9. The P L C testing device of claim 1, wherein a travel switch depression bar (42) is further disposed on an inner edge of the input probe assembly, the travel switch depression bar (42) is connected with a depression bar detection sensor (53), and the depression bar detection sensor (53) is connected with an alarm prompting device.