CN211602367U

CN211602367U - Rotary switch service life testing device

Info

Publication number: CN211602367U
Application number: CN201921646881.9U
Authority: CN
Inventors: 罗俊彬
Original assignee: Suzhou Xiangxinyuan Electronic Technology Co ltd
Current assignee: Suzhou Xiangxinyuan Electronic Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-09-29
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to a rotary-type switch life-span testing arrangement, testing arrangement includes the frame, a plurality of test station, every test station includes fixed establishment, slip table mechanism, rotary driving mechanism, including a motor, an end cap, a controller, and a cover plate, testing arrangement still includes the PLC controller, a plurality of working circuit, a plurality of test circuit, the examination product that awaits measuring in the test station that every working circuit series connection corresponds, every test circuit is including being arranged in reading the examination product that awaits measuring in the test station that corresponds the solid state relay that rises along or descend along the number of times of switch break-make, each solid state relay is connected with the input of PLC controller, each working circuit is connected with the output of PLC controller and is judged and is corresponding the examination product that awaits measuring by PLC controller control disconnection when unqualified. The utility model discloses can monitor whole test procedure, convenient subsequent bad reason analysis, save time raises the efficiency.

Description

Rotary switch service life testing device

Technical Field

The utility model relates to a rotary-type switch life-span testing arrangement.

Background

Rotary type switches typically have a swivel member that is reciprocable to effect the switching of electronic circuitry within the switch. Specifically, during the test, there is the mechanism drive bull block spare in the outside, rotates with certain speed from initial angle, and when metallic conduction spare on the bull block and the metallic conduction spare contact on the switch body, the corresponding switch pin is switched on promptly between. Otherwise, both pins are disconnected. Thus, the rotation angle can be used for controlling the connection and disconnection of the circuit. When carrying out the life-span test, need have fixed establishment to fix the product, rotary drive mechanism is connected with the cooperation of turning round part to drive the part of turning round and rotate with certain speed and angle, detection device comes the record actual number of times of rotation.

However, most of the conventional rotary switch life testing devices employ a set test frequency, connect a corresponding power signal, and then allow the driving device to push the push rod to perform continuous tests until the test frequency is completed. And finally, checking whether the test product is qualified. Therefore, the method can only know whether the final product result is qualified or not, but cannot monitor the whole testing process, and also cannot know whether the product becomes a defective product after testing for a plurality of times, whether misoperation exists in the testing process and the like. In particular, when there are a plurality of switches in a multi-way switch line or a switch line, a specific cause of the failure cannot be determined.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rotary-type switch life-span testing arrangement can solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a rotary switch life testing device, a rotary switch is provided with a rotary head part for realizing the on-off of an electronic circuit in the switch through the self-rotation, the testing device comprises a frame and a plurality of testing stations arranged at the top of the frame, each testing station comprises a fixing mechanism for fixing a product to be tested, a sliding table mechanism for adjusting the front and back positions of the fixing mechanism, a rotary driving mechanism which is connected with the rotary head part of the product to be tested and drives the rotary head part to rotate during testing, and a motor for driving the rotary driving mechanism to rotate,

the testing device further comprises a PLC (programmable logic controller) connected with each motor, a plurality of working circuits in one-to-one correspondence with the plurality of testing stations, and a plurality of testing circuits in one-to-one correspondence with the plurality of testing stations, each working circuit is connected with a product to be tested in the corresponding testing station in series, each testing circuit comprises a solid-state relay for reading the times of on-off rising edges or falling edges of switches in the product to be tested in the corresponding testing station, each solid-state relay is connected with the input end of the PLC, each working circuit is connected with the output end of the PLC, and the working circuits are controlled to be disconnected by the PLC when the PLC judges that the corresponding product to be tested is unqualified.

Furthermore, the sliding table mechanism comprises a screw rod and a nut which are connected in a matched mode, a sliding table fixedly connected with the nut, a handle fixedly connected with the screw rod and enabling the screw rod to rotate through operating the handle, and a guide rod arranged in parallel with the screw rod and arranged in a sliding mode with the sliding table, the fixing mechanism is fixedly connected to the sliding table, and the screw rod and the guide rod are arranged in the front-back direction.

Further, an output shaft of the motor is disposed in the front-rear direction.

Further, the PLC controller judges whether the corresponding product to be tested is qualified or not by comparing the received pulse signal of the solid-state relay with the number of the switches in the corresponding product to be tested in each test cycle.

Further, one test cycle is defined as one rotation of the rotating member by the motor via the rotary driving mechanism.

Furthermore, the rear portion of the rack is provided with a plurality of heat dissipation devices which correspond to the plurality of test stations one to one, and each heat dissipation device comprises a fan and a heat dissipation fin.

Furthermore, the working circuit further comprises heat dissipation resistors arranged at the rear part of the rack, and each heat dissipation resistor corresponds to the position of the corresponding heat dissipation device.

Furthermore, the testing device also comprises a touch screen device connected with the PLC.

Furthermore, the testing device also comprises a direct current stabilized power supply.

Furthermore, the bottom of the frame is rotatably connected with a plurality of casters.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a rotary-type switch life-span testing arrangement can monitor whole test procedure, in case the product is bad, can break off the power supply immediately and stop the test to show bad switch circuit and actually accomplished test time, make things convenient for subsequent bad reason analysis, can effectively detect the malfunction or the slow scheduling problem of action reaction that the product leads to after long-term test. Simultaneously, in order to save time and improve efficiency, a plurality of testing stations on the testing device can simultaneously test a plurality of same or different products, and the testing stations are independent and do not interfere with each other.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic perspective view of a rotary switch life testing device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

fig. 3 is another perspective view of the rotary switch life testing device shown in fig. 1;

fig. 4 is a schematic side view of the rotary type switch life testing device shown in fig. 1;

fig. 5 is a schematic view of an electrical schematic structure of the rotary type switch life testing apparatus shown in fig. 1.

The reference numbers in the figures are:

1. a frame; 2. a fixing mechanism; 3. a touch screen device; 4. a sliding table mechanism; 41. a screw rod; 42. a sliding table; 43. a handle; 44. a guide bar; 5. a rotation driving mechanism; 6. a motor; 7. a PLC controller; 8. a solid state controller; 9. a fan; 10. a heat sink; 11. a DC stabilized power supply; 12. a caster wheel; 13. and a heat dissipation resistor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 5, a rotary switch life testing device in the present embodiment, a rotary switch has a rotor member for turning on/off an electronic circuit in the switch by rotating itself.

The testing device comprises a rack 1 and a plurality of testing stations arranged at the top of the rack 1, wherein each testing station comprises a fixing mechanism 2 for fixing a product to be tested, a sliding table mechanism 4 for adjusting the front and back positions of the fixing mechanism 2, a rotary driving mechanism 5 which is connected with a rotary head part of the product to be tested and drives the rotary head part to rotate during testing, and a motor 6 for driving the rotary driving mechanism 5 to rotate. An output shaft of the motor 6 is arranged in the front-rear direction.

The embodiment provides a specific structure of the sliding table mechanism 4 described above, which includes a screw 41 and a nut that are connected in a matching manner, a sliding table 42 fixedly connected with the nut, a handle 43 fixedly connected with the screw 41 and operating the handle to rotate the screw 41, and a guide rod 44 arranged in parallel with the screw 41 and sliding with the sliding table 42, wherein the fixing mechanism 2 is fixedly connected to the sliding table 42, and the screw 41 and the guide rod 44 are arranged along the front-back direction.

The testing device further comprises a PLC (programmable logic controller) 7 connected with each motor, a plurality of working circuits in one-to-one correspondence with the plurality of testing stations, a plurality of testing circuits in one-to-one correspondence with the plurality of testing stations, each working circuit is connected with a product to be tested in the testing station in series, each testing circuit comprises a solid-state relay 8 used for reading the times of on-off rising edges or falling edges of switches in the product to be tested in the corresponding testing station, each solid-state relay 8 is connected with the input end of the PLC 7, each working circuit is connected with the output end of the PLC 7 and is controlled to be disconnected by the PLC 7 when the PLC 7 judges that the corresponding product to be tested is unqualified.

Specifically, the PLC controller 7 determines whether the corresponding product to be tested is qualified by comparing the received pulse signal of the solid-state relay 8 with the number of switches in the corresponding product to be tested in each test cycle. More specifically, one test cycle is defined as one rotation of the rotary member by the motor 6 via the rotary drive mechanism 5.

The operating circuit also comprises a heat-dissipating resistor 13 arranged at the rear of the frame 1. In a more preferred embodiment, the rear of the rack 1 is provided with a plurality of heat sinks, one for each of the plurality of test stations, each heat sink in this example comprising a fan 9 and a heat sink 10. Each heat dissipation resistor 13 corresponds to a position of the corresponding heat dissipation device.

The testing device further comprises a touch screen device 3 connected with the PLC 7. The selection of the test station and the parameter setting of the corresponding test product are performed by the touch screen device 3.

The test apparatus further comprises a regulated dc power supply 11. And regulating the current of the direct current stabilized power supply 11 according to the product test requirement.

A plurality of casters 12 are rotatably connected to the bottom of the housing 1.

The rotary switch service life testing device in the embodiment can monitor the whole testing process, can immediately disconnect the power supply and stop testing once the product is bad, displays bad switch circuits and actual testing time, facilitates subsequent bad reason analysis, and can effectively detect the problems of misoperation or slow action reaction and the like caused by long-term testing of the product. Simultaneously, in order to save time and improve efficiency, a plurality of testing stations on the testing device can simultaneously test a plurality of same or different products, and the testing stations are independent and do not interfere with each other.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A rotary switch life testing device, the rotary switch having a rotor member for turning on/off an electronic circuit in the switch by its rotation, characterized in that: the testing device comprises a frame (1), a plurality of testing stations arranged at the top of the frame (1), each testing station comprises a fixing mechanism (2) for fixing a product to be tested, a sliding table mechanism (4) for adjusting the front and back positions of the fixing mechanism (2), a rotary driving mechanism (5) which is connected with a rotary head part of the product to be tested and drives the rotary head part to rotate and a motor (6) which drives the rotary driving mechanism (5) to rotate during testing,

the testing device further comprises a PLC (programmable logic controller) connected with each motor, a plurality of working circuits in one-to-one correspondence with the testing stations, and a plurality of testing circuits in one-to-one correspondence with the testing stations, wherein each working circuit is connected with a product to be tested in a testing station in series, each testing circuit comprises a solid-state relay (8) used for reading the times of on-off rising edges or falling edges of switches in the product to be tested in the corresponding testing station, each solid-state relay (8) is connected with the input end of the PLC (7), and each working circuit is connected with the output end of the PLC (7) and is controlled to be disconnected by the PLC (7) when the PLC (7) judges that the corresponding product to be tested is unqualified.

2. The rotary-type switch life testing device as recited in claim 1, further comprising: slip table mechanism (4) including the lead screw (41) and the nut that cooperate to connect, with nut looks fixed connection's slip table (42), with lead screw (41) looks fixed connection and make through operating it lead screw (41) pivoted handle (43), with lead screw (41) parallel arrangement and with guide bar (44) that slip table (42) slided the setting mutually, fixed establishment (2) fixed connection be in on slip table (42), lead screw (41) and guide bar (44) set up along the fore-and-aft direction.

3. The rotary-type switch life testing device as recited in claim 1, further comprising: the output shaft of the motor (6) is arranged along the front-back direction.

4. The rotary-type switch life testing device as recited in claim 1, further comprising: and the PLC (7) judges whether the corresponding product to be tested is qualified or not by comparing whether the received pulse signal of the solid-state relay (8) is matched with the number of the switches in the corresponding product to be tested in each test cycle.

5. The rotary-type switch life testing device as recited in claim 4, wherein: one test cycle is defined as one rotation of the rotating part driven by the motor (6) through the rotary driving mechanism (5).

6. The rotary-type switch life testing device as recited in claim 1, further comprising: the rear portion of frame (1) is provided with a plurality of heat abstractor with a plurality of test station looks one-to-one, every heat abstractor includes fan (9) and fin (10).

7. The rotary-type switch life testing device as recited in claim 1, further comprising: the testing device further comprises a touch screen device (3) connected with the PLC (7).

8. The rotary-type switch life testing device as recited in claim 1, further comprising: the testing device also comprises a direct current stabilized power supply (11).

9. The rotary-type switch life testing device as recited in claim 1, further comprising: the bottom of the frame (1) is rotatably connected with a plurality of trundles (12).

10. The rotary-type switch life testing device of claim 6, wherein: the working circuit further comprises heat dissipation resistors (13) arranged at the rear part of the rack (1), and each heat dissipation resistor (13) corresponds to the position of the corresponding heat dissipation device.