A complete set of fixture system for relay testing

Abstract

The present invention discloses a complete set of fixture system for relay testing, including a contact probe, a base, an adjustment pad, a telescopic push mechanism, a tail seat plate, and a relay. The adjustment pad, the telescopic push mechanism, and the tail seat plate are respectively installed on the upper part of the base by mounting screws, and the projections of the center lines of the adjustment pad, the telescopic push mechanism, and the tail seat plate on the horizontal plane overlap. The tail seat plate is provided with a plurality of through holes, and the through holes are horizontally oriented. The middle of the contact probe is installed in the through hole, and a terminal is provided at one end of the contact probe. The present invention can be used for pressure resistance, heating and other tests of multiple products at the same time through a set of fixtures, thereby increasing work efficiency. The telescopic push mechanism is designed at the other end of the product contact, which will reduce the impact on the product contact, appearance, etc. The design of the terminal, using terminal block connection or wire crimping nose connection, will save the manufacturing time of the complete set of fixture system.

Description

Technical Field

[0001] The invention belongs to the field of relay testing devices, and in particular relates to a complete set of fixture systems for relay testing. Background Art

[0002] In the production test process of relays, factory acceptance test is almost an indispensable process, and the withstand voltage test is an important part of the acceptance test. In addition, the product's cold and hot state pull-in and release voltage, load heating, etc. are usually also items that need to be focused on. For example, Chinese patent application number 201210386439.3 discloses a relay test fixture, which includes a socket, an insulating sleeve and a contact piece. The socket is provided with multiple groups of jacks, and the contact pieces are symmetrically inserted into the corresponding slots of the insulating sleeve in pairs to ensure insulation between the two contact pieces, and are installed together. In each jack of the socket, the welding lead at the bottom of each contact piece is connected to the test equipment. During the test, the contacts of the relay need to be connected one by one, which is complicated to operate. At the same time, there are many types of energized and loaded heating fixtures for existing relay acceptance tests, and the wiring is complicated and they are prone to aging after long-term use. Since the single fixtures in the complete set of fixtures are connected in series by welding wires, the wires are easy to fall off after a long period of use, which makes maintenance inconvenient. In order to solve and avoid these problems to the greatest extent, a complete set of fixtures for relay testing and its component system are designed. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a complete set of fixture system for relay testing, which can solve the problems of easy falling off and inconvenient maintenance of the prior art wires.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides a complete set of fixture system for relay testing, comprising a contact probe, a base, an adjustment pad, a telescopic pushing mechanism, a tail seat plate, and a relay. The adjustment pad, the telescopic pushing mechanism, and the tail seat plate are respectively installed on the upper part of the base by installing screws, and the projections of the center lines of the adjustment pad, the telescopic pushing mechanism, and the tail seat plate on the horizontal plane coincide. The tail seat plate is provided with a plurality of through holes, and the through holes are horizontally oriented. The middle part of the contact probe is installed in the through hole, one end of the contact probe is provided with a wiring terminal, and the other end of the contact probe is in close contact with the contact lead-out terminal on the relay. The relay is placed on the upper part of the adjustment pad, and the telescopic pushing mechanism is pressed against one side of the relay.

[0006] The telescopic pushing mechanism includes a support, a slider, and a push plate. The support is installed on the base by installing screws, the slider is inserted into the support, and the slider is slidably connected to the support, the push plate is inserted from the other side of the support, and one end of the push plate is connected to the slider through a spring.

[0007] The support is provided with a positioning pin at the position where the push plate is inserted, and a plurality of positioning holes are arranged at intervals on the upper part of the push plate insertion end. The positioning pin slides up and down in the support, and the lower part of the positioning pin is inserted into the positioning hole.

[0008] The relay is provided with a plurality of contact lead-out terminals, the arrangement of the through holes on the tail base plate is the same as the arrangement of the contact lead-out terminals, and contact probes are installed in the through holes.

[0009] The contact probe is provided with a limiting ring, which is clamped on one side of the through hole, and a tail cover is provided on one side of the tail base plate, which is fixed on the tail base plate by screws and is tightly pressed against one side of the limiting ring.

[0010] There are a plurality of adjusting pads, telescopic pushing mechanisms and tail seat plates. One adjusting pad, one telescopic pushing mechanism and one tail seat plate form a group, which are installed on the base at intervals, and contact probes between different groups are connected to each other through wires.

[0011] The contact probes are arranged on the tail base plate in multiple rows, and the contact probes in different rows have different lengths at one end of the wiring terminal.

[0012] A positioning plate is provided at one end of the slider, the positioning plate is fixed on the slider by screws, and one side of the positioning plate is closely attached to one side of the relay.

[0013] The adjusting pad, the tail cover plate and the tail seat plate are made of bakelite or organic glass, the base is made of aluminum, and the contact probe is made of red copper.

[0014] The relay has various specifications, and different specifications of relays correspond to tail seat plates and adjustment pads of different specifications.

[0015] The beneficial effects of the present invention are as follows: a set of fixtures can be used for pressure resistance, heating and other tests of multiple products at the same time, thereby increasing work efficiency, and the telescopic pushing mechanism is designed at the other end of the product contact, which will reduce the impact on the product contact, appearance, etc. The design of the wiring terminal uses terminal block connection or wire crimping nose connection to save the manufacturing time of the complete set of fixtures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0018] In the figure: 1-terminal, 2-contact probe, 3-base, 4-adjusting pad, 5-telescopic pushing mechanism, 6-tail cover, 7-tail seat plate, 8-contact lead-out terminal, 9-relay, 10-locating pin, 11-mounting screw, 12-support, 13-slider, 14-push plate, 15-spring, 16-locating plate. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0020] like Figure 1 , Figure 2 As shown, a complete set of fixture system for relay testing includes a contact probe 2, a base 3, an adjusting pad 4, a telescopic pushing mechanism 5, a tail seat plate 7, and a relay 9. The adjusting pad 4, the telescopic pushing mechanism 5, and the tail seat plate 7 are respectively installed on the upper part of the base 3 by installing screws 11, and the projections of the center lines of the adjusting pad 4, the telescopic pushing mechanism 5, and the tail seat plate 7 on the horizontal plane coincide. The tail seat plate 7 is provided with a plurality of through holes, and the through holes are horizontally oriented. The middle part of the contact probe 2 is installed in the through hole, one end of the contact probe 2 is provided with a wiring terminal 1, and the other end of the contact probe 2 is in close contact with the contact lead-out terminal 8 on the relay 9. The relay 9 is placed on the upper part of the adjusting pad 4, and the telescopic pushing mechanism 5 is pressed against one side of the relay 9.

[0021] Before testing, different tail seat plates 7 and adjustment pads 4 are selected according to different relays 9. After installing them on the base 3, the relay 9 is tested. The upper part of the adjustment pad 4 is provided with an arc-shaped groove corresponding to the outer diameter of the relay 9. During testing, the relay 9 is placed on the upper part of the adjustment pad 4 so that the adjustment pad 4 can fix the relay 9, and then the push plate 14 is pushed to make the positioning plate 16 contact with the relay 9. When the positioning plate 16 is pushed to the point where the contact lead-out terminal 8 of the relay 9 can fully contact with the contact probe 2, the top positioning pin 10 is inserted into the positioning hole of the push plate 14, so that the contact lead-out terminal 8 can be in close contact with the contact probe 2 through the elastic force of the spring. During testing, an adjustment pad 4, a telescopic pushing mechanism 5 and a tail seat plate 7 are a group, and each group is The wiring terminal 1 between the two terminals is connected by a wire crimping nose or short-circuited to the fixture wiring terminal with a terminal block, indirectly connecting the normally open contacts of the relay 9 in series to form a complete set of fixtures and systems, so that only one set of loads is needed for the heating test of the relay 9; in addition, the fixture system leads the contact lead-out terminal 8 of the relay 9 to the other end of the fixture, and the coils of each product can be easily led out through the wiring terminal 1. After being connected to the test bench through a special adapter plug, the product can be individually controlled to be connected and disconnected, and the pull-in and release voltage tests before and after the load heating of multiple products in the complete set of fixtures can be performed separately; it is also easy to directly place the voltmeter test lead on the corresponding wiring terminal to perform the contact voltage drop test, thus avoiding the inconvenience of testing caused by the dense distribution of contacts. The telescopic push mechanism 5 is designed at the other end of the relay 9 contact, which will reduce the impact on the product contacts, appearance, etc.

[0022] The telescopic pushing mechanism 5 includes a support 12, a slider 13, and a push plate 14. The support 12 is installed on the base 3 by means of mounting screws 11. The slider 13 is inserted into the support 12 from the support 12, and the slider 13 is slidably connected to the support 12. The push plate 14 is inserted from the other side of the support 12, and one end of the push plate 14 is connected to the slider 13 by means of a spring 15. When in use, the push plate 14 is pushed to make the positioning plate 16 contact with the relay 9. When the positioning plate 16 is pushed to the point where the contact lead-out terminal 8 of the relay 9 can be fully contacted with the contact probe 2, the positioning pin 10 at the top is inserted into the positioning hole of the push plate 14, so that the contact lead-out terminal 8 can be in close contact with the contact probe 2 through the elastic force of the spring. When testing different relays 9, the spring 15 can be contracted by pushing the push plate 14, thereby providing a gap for facilitating the removal and replacement of a new relay 9, thereby improving the efficiency of detection.

[0023] The support 12 is provided with a positioning pin 10 at the position where the push plate 14 is inserted, and a plurality of positioning holes are arranged at intervals on the upper part of the insertion end of the push plate 14. The positioning pin 10 slides up and down in the support 12, and the lower part of the positioning pin 10 is inserted into the positioning hole. After the positioning pin 10 is inserted into the positioning hole, the positioning pin 10 can be prevented from sliding, so that the spring can push the slider 13 through the supporting force so that the contact lead terminal 8 is close to the contact probe 2.

[0024] The relay 9 is provided with a plurality of contact lead-out terminals 8, the through-hole arrangement on the tail base plate 7 is the same as the arrangement of the contact lead-out terminals 8, and contact probes 2 are installed in the through-holes, so that the distribution of the contact probes 2 corresponds to that of the contact lead-out terminals 8, thereby quickly making different contact probes 2 contact with the contact lead-out terminals 8.

[0025] The contact probe 2 is provided with a limiting ring, which is stuck on one side of the through hole, and a tail cover plate 6 is provided on one side of the tail base plate 7. The tail cover plate 6 is fixed to the tail base plate 7 by screws, and the tail cover plate 6 is pressed tightly against one side of the limiting ring. The limiting ring and the tail cover plate 6 provide supporting force so that the contact probe 2 can be pressed against the contact lead-out terminal 8 to ensure the connectivity of the circuit.

[0026] There are multiple adjusting pads 4, telescopic pushing mechanisms 5, and tail seat plates 7. One adjusting pad 4, one telescopic pushing mechanism 5, and one tail seat plate 7 form a group, which are installed on the base 3 at intervals, and the contact probes 2 between different groups are connected to each other through wires. By connecting multiple groups of adjusting pads 4, telescopic pushing mechanisms 5, and tail seat plates 7, the detection efficiency is improved.

[0027] The contact probes 2 are arranged in multiple rows on the tail base plate 7, and the lengths of the contact probes 2 in different rows at one end of the wiring terminal 1 are different, so that the wiring terminals 1 are staggered with each other, which is convenient for operators to wire and lead out the wiring of the wiring terminals 1 during detection.

[0028] A positioning plate 16 is provided at one end of the slider 13, and the positioning plate 16 is fixed to the slider 13 by screws, and one side of the positioning plate 16 is tightly attached to one side of the relay 9. The positioning plate 16 is designed according to the end of the relay 9, and the groove is designed according to the shape of the relay 9, so that the relay 9 can fit the positioning plate 16 more closely, and the positioning plate 16 is made of rubber material, which can protect the appearance of the relay 9 and has an insulating effect.

[0029] The adjustment pad 4, tail cover plate 6 and tail seat plate 7 are made of bakelite or plexiglass, which are resistant to high temperatures and insulated, thereby increasing the service life of the fixture. The base 3 is made of aluminum for easy processing, and the contact probe 2 is made of copper to increase conductivity.

[0030] The relay 9 has various specifications. Relays 9 of different specifications correspond to tail base plates 7 and adjustment pads 4 of different specifications. The height of the relay 9 can be adjusted by adjusting the pads 4 so that the contact lead-out terminal 8 is aligned with the contact probe 2. The position of the contact probe 2 can be specified on the tail base plate 7 so that the contact probe 2 can quickly contact the contact lead-out terminal 8, thereby improving the positioning efficiency.

Claims

1. A complete set of fixture system for relay testing, characterized in that: The invention comprises a contact probe (2), a base (3), an adjustment pad (4), a telescopic pushing mechanism (5), a tail seat plate (7), and a relay (9); the adjustment pad (4), the telescopic pushing mechanism (5), and the tail seat plate (7) are respectively mounted on the upper part of the base (3) by means of mounting screws (11); and the projections of the center lines of the adjustment pad (4), the telescopic pushing mechanism (5), and the tail seat plate (7) on a horizontal plane coincide; a plurality of through holes are arranged on the tail seat plate (7), and the through holes are oriented horizontally; the middle part of the contact probe (2) is mounted in the through holes; and the contact probe (2) is arranged on the tail seat plate (7). One end of the needle (2) is provided with a wiring terminal (1), and the other end of the contact probe (2) is in close contact with a contact lead-out terminal (8) on a relay (9); the relay (9) is placed on the upper part of the adjustment pad (4), and the telescopic pushing mechanism (5) is pressed against one side of the relay (9); The telescopic pushing mechanism (5) comprises a support (12), a slider (13) and a push plate (14); the support (12) is mounted on the base (3) by means of mounting screws (11); the slider (13) is inserted from the support (12) into the support (12), and the slider (13) is slidably connected to the support (12); the push plate (14) is inserted from the other side of the support (12), and one end of the push plate (14) is connected to the slider (13) by means of a spring (15); The support (12) is provided with a positioning pin (10) at the position where the push plate (14) is inserted, and a plurality of positioning holes are arranged at intervals on the upper part of the insertion end of the push plate (14), and the positioning pin (10) slides up and down in the support (12), and the lower part of the positioning pin (10) is inserted into the positioning hole; A positioning plate (16) is provided at one end of the slider (13), the positioning plate (16) is fixed to the slider (13) by screws, and one side of the positioning plate (16) is in close contact with one side of the relay (9); The relay (9) has various specifications, and relays (9) of different specifications correspond to tail seat plates (7) and adjustment pads of different specifications.

2. A complete set of fixture system for relay testing as claimed in claim 1, characterized in that: The relay (9) is provided with a plurality of contact lead-out terminals (8), the through-hole arrangement on the tail base plate (7) is the same as the arrangement of the contact lead-out terminals (8), and contact probes (2) are installed in the through-holes.

3. A complete set of fixture system for relay testing as claimed in claim 1, characterized in that: The contact probe (2) is provided with a limiting ring, which is clamped on one side of the through hole, and a tail cover plate (6) is provided on one side of the tail base plate (7), the tail cover plate (6) is fixed on the tail base plate (7) by screws, and the tail cover plate (6) is tightly pressed against one side of the limiting ring.

4. A complete set of fixture system for relay testing as claimed in claim 1, characterized in that: There are a plurality of adjustment pads (4), telescopic push mechanisms (5) and tail seat plates (7), one adjustment pad (4), one telescopic push mechanism (5) and one tail seat plate (7) forming a group, which are installed on the base (3) at intervals, and the contact probes (2) between different groups are connected to each other via wires.

5. A complete set of fixture system for relay testing as claimed in claim 1, characterized in that: The contact probes (2) are arranged on the tail base plate (7) in a plurality of rows, and the contact probes (2) in different rows have different lengths at one end of the wiring terminal (1).

6. A complete set of fixture system for relay testing as claimed in claim 1, characterized in that: The adjustment pad (4), the tail cover plate (6) and the tail seat plate (7) are made of bakelite or organic glass, the base (3) is made of aluminum, and the contact probe (2) is made of red copper.

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