A dynamic cleaning device for a relay contact

Abstract

The utility model discloses a relay contact point dynamic cleaning device, wherein, the relay carrying mechanism of front -and -back movement gets or loosens the relay of relay cleaning station, and the relay carrying mechanism of left -and -right movement carries relay to next station, or resets in the idle state. The relay positioning fixture of front -and -back movement clamps or loosens the relay, and a plurality of probes are pressed against and electrically connected to the relay, and the dynamic voltage of 20HZ, duty cycle 50% of probe is applied on the coil terminal of each relay, and a plurality of high -voltage packages and cleaning copper pipe assemblies are also arranged on the relay cleaning station, and the voltage of duty cycle 50% passes through solenoid valve control 10HZ, duty cycle 50% pulse air blowing of each cleaning copper pipe to the contact of relay. The device realizes the purpose of cleaning the foreign matter between the relay contact points, especially the foreign matter between the normally closed contact and movable contact, through the dynamic cleaning of relay contact point, and improves the relay quality.

Description

Technical Field

[0001] This utility model relates to the field of relay manufacturing, and in particular to a relay contact cleaning device in relay manufacturing equipment. Background Technology

[0002] Currently, in relay manufacturing processes, all existing relay contact cleaning methods are static cleaning, which cannot maximize the removal of foreign objects from the relay contacts. In particular, the cleaning effect between normally closed contacts and movable contacts is difficult to achieve the desired effect, thus affecting the quality of the relay. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a dynamic cleaning device for relay contacts. This device achieves the purpose of cleaning foreign objects between relay contacts, especially between normally closed contacts and movable contacts, by dynamically cleaning the relay contacts, thereby reducing the contact resistance between relay contacts, improving relay quality, and enhancing product competitiveness.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A dynamic cleaning device for relay contacts includes a relay track, a relay conveying mechanism connected to a PLC controller, a relay positioning fixture, a probe assembly, a high-voltage transformer assembly, and a cleaning copper tube assembly; wherein, The relay track includes a lower track with multiple relay cleaning stations; The relay conveying mechanism is equipped with multiple conveying slots corresponding to multiple relay cleaning stations. The forward and backward movement of the relay conveying mechanism allows for the attachment or release of relays at the corresponding cleaning stations. The left and right movement of the relay conveying mechanism transports the attached relays to the next station, or resets them in an empty state after they have been released. The relay positioning fixture is equipped with multiple positioning slots corresponding to multiple relay cleaning stations; the relay positioning fixture can lock or release the relays at the relay cleaning stations by moving back and forth. The probe assembly includes multiple probes fixedly mounted on the relay positioning fixture. Each probe corresponds to and is electrically connected to a relay that is locked in a positioning slot. A dynamic voltage of 20Hz and 50% duty cycle is applied to the coil terminal of each relay through each probe. The high-voltage transformer assembly includes multiple high-voltage transformers with corresponding relay cleaning stations. The copper tube cleaning assembly includes multiple copper tubes with corresponding relay cleaning stations; a 10Hz voltage with a 50% duty cycle is used to control each copper tube to deliver a 10Hz pulse airflow to the relay contacts at the relay cleaning station via a solenoid valve.

[0005] As described above, the relay contact dynamic cleaning device further includes an upper guide rail parallel to the lower rail. The lower rail and the upper guide rail are respectively located below and above the relay conveying mechanism and the relay positioning fixture. The upper guide rail consists of two parallel straight rails, and the relay to be cleaned moves between the two straight rails.

[0006] As described above, in a relay contact dynamic cleaning device, the relay cleaning stations corresponding to multiple high-voltage transformers are placed at the relay cleaning stations corresponding to multiple cleaning copper pipes.

[0007] As described above, in a relay contact dynamic cleaning device, the relay conveying mechanism has multiple steps for each feed, and the number of steps for each feed corresponds to the number of high-voltage coils in the high-voltage coil assembly.

[0008] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: First, the relay contact dynamic cleaning device of this utility model is equipped with a relay positioning fixture, which can position the relay during cleaning to improve cleaning accuracy; the high-voltage transformer is provided to remove static electricity from the relay during the air blowing cleaning process, making it easier to blow away small foreign objects from the relay; the probe is not only used to hold the relay coil terminals, but also to apply a 20HZ dynamic voltage with a duty cycle of 50% to the relay coil terminals, combined with the 10HZ pulse air blowing with a duty cycle of 50% during the cleaning of the copper tube, so as to achieve dynamic cleaning of the relay and ensure that foreign objects between the relay contacts can be thoroughly cleaned, thereby improving product quality and enhancing product competitiveness.

[0009] Secondly, the relay track of this utility model is also provided with an upper guide rail consisting of two parallel straight rails. The relay to be cleaned and processed moves between the two straight rails to ensure the accurate positioning of the relay during the cleaning and processing process.

[0010] Thirdly, in this utility model, the relay cleaning stations corresponding to multiple high-voltage transformers are placed in front of the relay cleaning stations corresponding to multiple cleaning copper pipes. This allows the relays at the relay cleaning stations to be destaticated before being subjected to pulse blowing dust removal, thereby improving the dust removal efficiency of the relay contacts.

[0011] Fourth, the relay conveying mechanism of this utility model has multiple steps for one feed, which can improve production efficiency. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a top view of the relay contact dynamic cleaning device of this utility model. Figure 1 (The relay positioning fixture is jamming the relay); Figure 2 This is a top view of the relay contact dynamic cleaning device of this utility model. Figure 2 (The relay conveying mechanism retrieves the relay). Figure 3 This is a schematic diagram of the relay positioning high-voltage transformer cleaning structure of the relay contact dynamic cleaning device of this utility model; Figure 4 This is a schematic diagram of the relay positioning copper tube cleaning structure of the relay contact dynamic cleaning device of this utility model. Detailed Implementation

[0013] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0014] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0015] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0016] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0017] In the claims, description and accompanying drawings of this utility model, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0018] Now combined Figures 1 to 4 As shown, the present invention describes a dynamic cleaning device for relay contacts, including a relay track 200, a relay conveying mechanism 300 connected to a PLC controller (Keyence KV-N60AT), a relay positioning fixture 400, a probe assembly 500, a high-voltage transformer assembly 600, and a cleaning copper tube assembly 700.

[0019] The relay track 200 of this utility model includes a lower track 210 with multiple relay cleaning stations, on which the relays 100 to be cleaned are located. The relay track 200 also includes an upper guide rail 220 arranged parallel to the lower track 210; the lower track 210 is located below the relay conveying mechanism 300 and the relay positioning fixture 400, and the upper guide rail 220 is located above the relay conveying mechanism 300 and the relay positioning fixture 400. The upper guide rail 220 consists of two parallel straight rails, and the relays 100 to be cleaned move between the two straight rails, ensuring accurate positioning of the relays 100 during the cleaning process. The relays 100 to be cleaned are fed onto the lower track 210 and move along the upper guide rail 220, first undergoing static electricity removal by the high-voltage transformer assembly 600, and then dust removal by the cleaning copper tube assembly 700.

[0020] This utility model relates to a relay conveying mechanism 300, which is a moving device capable of both forward and backward movement and left and right movement. The relay conveying mechanism 300 is equipped with multiple conveying slots 310, each corresponding to a relay cleaning station. Under the control of a PLC controller (Keyence KV-N60AT), which controls the forward and backward movement of the relay conveying mechanism 300, the multiple conveying slots 310 either engage or disengage the relays 100 at the relay cleaning stations.

[0021] In this embodiment, multiple conveying gates 310, under the forward movement of the relay conveying mechanism 300, take the relays 100 on the relay cleaning station; under the backward movement of the relay conveying mechanism 300, multiple conveying gates 310 release the relays 100 on the multiple relay cleaning stations.

[0022] The multiple transport bays 310, under the action of the relay transport mechanism 300 moving left and right, transport the retrieved relay 100 to the next work station, or reset it in the idle state after the retrieved relay 100 is released.

[0023] In this embodiment, the multiple transport bays 310, under the action of the relay transport mechanism 300 moving to the right, transport the acquired relay 100 to the next work station; the multiple transport bays 310, under the action of the relay transport mechanism 300 moving to the left, reset.

[0024] This utility model relates to a relay positioning fixture 400, which is a forward and backward moving device. The relay positioning fixture 400 is provided with multiple positioning slots 410, which correspond to multiple relay cleaning stations.

[0025] The multiple positioning bayonets 410, under the control of the PLC controller (Keyence KV-N60AT) to move the relay positioning fixture 400 back and forth, can either lock or release the relay 100 on the relay cleaning station.

[0026] In this embodiment, multiple positioning slots 410, under the action of the relay positioning fixture 400 moving backward, lock the relay 100 on the relay cleaning station; under the action of the relay positioning fixture 400 moving forward, the multiple positioning slots 410 release the relay 100 on the relay cleaning station and are in an empty reset state.

[0027] The multiple positioning slots 410 of the relay positioning fixture 400 are arranged opposite to the multiple conveying slots of the relay conveying mechanism 300, so that when the multiple conveying slots 310 of the relay conveying mechanism 300 convey the relay 100 to be cleaned into place, the multiple positioning slots 410 of the relay positioning fixture 400 then correspondingly lock the relay 100 to be cleaned into place, so as to energize the contacts of the relay 100, perform the static electricity removal work of the high voltage transformer 600, or perform the dust removal work of the copper pipe 700.

[0028] The probe assembly 500 of this utility model includes a plurality of probes 510 fixedly disposed on a relay positioning fixture 400. Each of the plurality of probes 510 is fixedly disposed in each positioning slot of the relay positioning fixture 400, so that while the relay 100 is moved into place by the plurality of positioning slots 410 of the relay positioning fixture 400, the plurality of probes 510 are respectively pressed against and electrically connected to the relay 100 locked in the plurality of positioning slots 410, so as to close or open the contacts of the relay 100.

[0029] The present invention provides a PLC controller (Keyence KV-N60AT) that controls an external power supply to provide each probe with a dynamic voltage of 20Hz and a duty cycle of 50%. This 20Hz dynamic voltage with a duty cycle of 50% is applied to the coil terminal of each electrically connected relay 100 through each probe, causing the contacts of the relay 100 to perform an interactive action of opening and closing at a frequency of 20Hz.

[0030] The high-voltage transformer assembly 600 of this utility model includes multiple high-voltage transformers 610 with corresponding relay cleaning stations. A PLC controller (Keyence KV-N60AT) is connected to the multiple high-voltage transformers 610 through solenoid valves to remove static electricity from the relays 100 at the relay cleaning stations.

[0031] The copper pipe cleaning assembly 700 of this utility model includes multiple copper pipes 710 with corresponding relay cleaning stations. A PLC controller (Keyence KV-N60AT) is connected to the multiple copper pipes 710 through a solenoid valve. The PLC controller (Keyence KV-N60AT) provides a 10Hz voltage with a 50% duty cycle to the solenoid valve through an external power supply. This 10Hz voltage with a 50% duty cycle controls each copper pipe to perform a 10Hz pulse air blowing to the contacts of the relay 100 at the relay cleaning station through the solenoid valve.

[0032] In this invention, the relay cleaning stations corresponding to multiple high-voltage transformers 610 are placed in front of the relay cleaning stations corresponding to multiple cleaning copper pipes 710. This allows the relays 100 at the relay cleaning stations to be destaticated before being subjected to pulse blowing dust removal, thereby improving the dust removal efficiency of the relay contacts.

[0033] The relay conveying mechanism 300 of this utility model has multiple feed steps per cycle. The number of feed steps per cycle corresponds to the number of high-voltage coils in the high-voltage coil assembly 600. The multiple feed steps per cycle of the relay conveying mechanism 300 can improve production efficiency. In this embodiment, the high-voltage coil assembly 600 has two high-voltage coils, and the relay conveying mechanism 300 has two feed steps per cycle accordingly.

[0034] Specifically, the relay conveying mechanism 300 of this utility model has multiple conveying slots 310 that, after forwardly engaging and rightward conveying the relay 100 to be cleaned and processed to the relay cleaning positions corresponding to the multiple high-voltage transformers 610, reset to the left; or when the relay conveying mechanism 300 has multiple conveying slots forward engaging and rightward conveying the relay 100 to be cleaned and processed to the relay cleaning positions corresponding to the multiple high-voltage transformers and multiple cleaning copper pipes, and then reset to the left, the multiple positioning slots 410 of the relay positioning fixture 400 then backward lock the relay 100 to be cleaned and processed brought by the relay conveying mechanism 300, while multiple probes 510 press against the relay conveying... The relay 100, to be cleaned, is transported by mechanism 300. A dynamic voltage of 20Hz with a duty cycle of 50% is applied to the coil terminals of the relay 100, causing the contacts of the relay 100 to perform an interactive closing and opening action at a frequency of 20Hz. Simultaneously, multiple high-voltage transformers 610 destaticate the relays 100 at their respective cleaning stations. A solenoid valve connected to a dynamic voltage of 10Hz with a duty cycle of 50% is used to deliver pulsed air cleaning at 10Hz with a duty cycle of 50% through multiple cleaning copper pipes to the contacts of the relays 100 at their respective cleaning stations. This allows for dynamic cleaning of the relay 100 contacts during the closing and opening process, effectively removing foreign matter between the normally open and normally closed contacts of the relay.

[0035] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A dynamic cleaning device for relay contacts, characterized in that, It includes a relay rail (200), a relay conveying mechanism (300) connecting to the PLC controller, a relay positioning fixture (400), a probe assembly (500), a high-voltage transformer assembly (600), and a copper tube cleaning assembly (700); among which, The relay track (200) includes a lower track (210) with multiple relay cleaning stations. The relay conveying mechanism (300) is provided with multiple conveying slots (310) corresponding to multiple relay cleaning stations; under the action of moving the relay conveying mechanism (300) back and forth, the relays (100) of the corresponding relay cleaning stations are picked up or released; under the action of moving the relay conveying mechanism (300) left and right, the picked-up relays (100) are conveyed to the next station, or reset in the empty state after the picked-up relays (100) are released; The relay positioning fixture (400) is provided with multiple positioning slots (410) corresponding to multiple relay cleaning stations; under the action of the relay positioning fixture (400) moving back and forth, the relays (100) on the relay cleaning stations are locked or released. The probe assembly (500) includes multiple probes (510) fixedly mounted on the relay positioning fixture (400). The multiple probes (510) correspond one-to-one with the relays (100) that are locked in the multiple positioning slots (410). A dynamic voltage of 20Hz and 50% duty cycle is applied to the coil terminal of each relay (100) through each probe. The high voltage transformer assembly (600) includes multiple high voltage transformers (610) with corresponding relay cleaning stations. The cleaning copper tube assembly (700) includes multiple cleaning copper tubes (710) with corresponding relay cleaning stations; a 10Hz voltage with a 50% duty cycle is used to control each cleaning copper tube to perform a 10Hz pulse air blowing to the contacts of the relay (100) at the relay cleaning station via a solenoid valve.

2. The relay contact dynamic cleaning device according to claim 1, characterized in that, The relay track (200) also includes an upper guide rail (220) arranged parallel above the lower track (210). The lower track (210) and the upper guide rail (220) are respectively arranged below and above the relay conveying mechanism (300) and the relay positioning fixture (400). The upper guide rail (220) consists of two parallel straight rails, and the relay (100) to be cleaned moves between the two straight rails.

3. The relay contact dynamic cleaning device according to claim 1, characterized in that, The relay cleaning station corresponding to multiple high voltage transformers (610) is placed in front of the relay cleaning station corresponding to multiple cleaning copper pipes (710).

4. The relay contact dynamic cleaning device according to claim 1, characterized in that, The relay conveying mechanism (300) is configured to feed in multiple steps at a time, and the number of steps in a single feed corresponds to the number of high-voltage coils in the high-voltage coil assembly (600).

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