A binary two-position relay sub-shaft pin assembly or disassembly tool

Abstract

A tool for assembling or disassembling the secondary shaft pin of a binary two-position relay, belonging to the field of relay assembly technology, includes a fixture. The fixture has a first surface and a second surface on its top surface. The first surface and the second surface are respectively provided with a first secondary shaft fixing groove and a second secondary shaft fixing groove, both of which match the relay secondary shaft. The first and second secondary shaft fixing grooves are oriented in opposite directions. Both the first and second secondary shaft fixing grooves have pin holes that match the pins. The pin holes are through holes extending to the bottom of the fixture. The tool also includes a pin-removing punch or a pin-attaching punch. The pin-removing punch has an outwardly protruding conical end, and the pin-attaching punch has an inwardly recessed circular groove end. This invention solves the technical problems of difficult assembly and disassembly of the secondary shaft pin and high wear in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of relay assembly technology, and in particular relates to a tool for assembling or disassembling relay counterspin pins. Background Technology

[0002] The binary 2-position relay mainly functions in control circuits, implementing control signals to perform actions such as start, stop, linkage, and delay. The assembly process of the relay is crucial. The secondary shaft of the binary 2-position relay drives the rotation of the central shaft, such as... Figure 1 As shown, the secondary shaft 1 has a movable rod 3 extending outward at a certain angle to the secondary shaft, and two pins 2 are also provided on the secondary shaft 1. The pins 2 of the secondary shaft are used to fix the secondary shaft to the moving contact, and the pins 2 and the secondary shaft 1 are interference-fitted. Since the secondary shaft is a precision part with an extended movable rod 3, and the pins 2 and the secondary shaft 1 are interference-fitted, the assembly or disassembly of the pins 2 and the secondary shaft 1 is not easy to implement. In the prior art, assembly or disassembly is generally done manually. The height control during assembly is extremely important and requires multiple manual adjustments. The disassembly of the pins requires two people to work together, and the pins and the secondary shaft are very easy to damage. Summary of the Invention

[0003] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a tool for assembling or disassembling relay secondary shaft pins, which solves the technical problems of difficult assembly and disassembly of secondary shaft pins and high wear in the prior art.

[0004] To achieve the above objectives, the main technical solutions adopted by the present invention include: A tool for assembling or disassembling the secondary shaft pin of a binary two-position relay includes a fixture. The fixture has a first surface and a second surface on its top surface. The first surface and the second surface are respectively provided with a first secondary shaft fixing groove and a second secondary shaft fixing groove. Both the first secondary shaft fixing groove and the second secondary shaft fixing groove are matched with the relay secondary shaft. The first secondary shaft fixing groove and the second secondary shaft fixing groove are in opposite directions. Both the first secondary shaft fixing groove and the second secondary shaft fixing groove are provided with a pin hole that matches the pin. The pin hole is a through hole that penetrates to the bottom of the fixture. The tool also includes a pin-removing punch or a pin-attaching punch. The pin-removing punch has an outwardly protruding conical end, and the pin-attaching punch has an inwardly recessed circular groove end.

[0005] Furthermore, the first surface and the second surface are arranged in a stepped manner, and a first moving rod fixing groove is provided at the step. The first moving rod fixing groove matches the position of the moving rod on the secondary shaft when the secondary shaft is located in the first secondary shaft fixing groove.

[0006] Furthermore, the fixture is also provided with a second moving rod fixing groove, which matches the position of the moving rod on the secondary shaft when the secondary shaft is located in the second secondary shaft fixing groove.

[0007] Furthermore, the recessed depth of the groove end of the upper pin punch matches the exposed height of the secondary shaft pin.

[0008] Furthermore, the conical end dimension of the ejector pin punch matches the dimension of the conical end entering the pin hole when the pin disengages from the secondary shaft.

[0009] Furthermore, the fixture is a nylon fixture.

[0010] The beneficial effects of this invention are: The binary two-position relay secondary shaft pin assembly or disassembly tool of the present invention, by setting a jig with two shaft fixing grooves in both directions and equipped with a shaft pin hole, allows a single person to complete the assembly or disassembly of the relay secondary shaft pin by using an upper pin punch or a lower pin punch, which saves time and effort, improves work efficiency, and is less likely to damage the secondary shaft, thereby reducing the cost of assembling or disassembling the binary two-position relay secondary shaft pin.

[0011] The fixture of this invention is made of nylon, which can protect the countershaft from damage during assembly or disassembly of the countershaft pin. The fixture is stepped, allowing the countershaft pin to be assembled or disassembled on both sides of the countershaft. The step height and the design of the first and second moving rod fixing grooves can protect the moving rod from damage during assembly or disassembly of the countershaft pin. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the secondary shaft structure of a binary two-position relay; Figure 2 This is a schematic diagram of the fixing fixture structure in the auxiliary shaft pin assembly or disassembly tool of the present invention. Figure 3 This is a schematic diagram of the pin-removing punch structure in the auxiliary shaft pin assembly or disassembly tool of the present invention. Figure 4 This is a schematic diagram of the upper pin punch structure in the auxiliary shaft pin assembly or disassembly tool of the present invention.

[0013] In the figure: 1 is the secondary shaft, 2 is the shaft pin, 3 is the moving rod, 4 is the fixture, 5 is the first surface, 6 is the second surface, 7 is the first secondary shaft fixing groove, 8 is the second secondary shaft fixing groove, 9 is the shaft pin hole, 10 is the second moving rod fixing groove, 11 is the pin ejector punch, 12 is the conical end, 13 is the upper pin punch, 14 is the circular groove end, and 15 is the first moving rod fixing groove. Detailed Implementation

[0014] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 2As shown, this invention provides a tool for assembling or disassembling the secondary shaft pin of a binary two-position relay. The tool includes a fixture 4, which has a first surface 5 and a second surface 6 on its top surface. The first surface 5 and the second surface 6 are respectively provided with a first secondary shaft fixing groove 7 and a second secondary shaft fixing groove 8 for fixing the secondary shaft 1 of the binary two-position relay. Both the first secondary shaft fixing groove 7 and the second secondary shaft fixing groove 8 match half of the outer contour of the relay secondary shaft 1. The first secondary shaft fixing groove 7 and the second secondary shaft fixing groove 8 are in opposite directions, allowing for forward and reverse assembly of the relay secondary shaft 1. Both the first secondary shaft fixing groove 7 and the second secondary shaft fixing groove 8 are provided with pin holes 9 that match the pin 2. Specifically, each of the first secondary shaft fixing groove 7 and the second secondary shaft fixing groove 8 has two pin holes 9, whose position and size match the pin 2. The pin holes 9 are through holes extending to the bottom of the fixture 4, allowing the pin 2 to fall out of the pin holes 9. The tool also includes a pin-removing punch 11 or a pin-attaching punch 13, such as... Figure 3 As shown, the pin-removing punch 11 has an outwardly protruding conical end 12. Specifically, the size of the conical end 12 of the pin-removing punch 11 matches the size of the conical end 12 entering the pin hole of the secondary shaft when the secondary shaft pin disengages from the secondary shaft. Figure 4 As shown, the upper pin punch 13 has an inwardly recessed circular groove end 14. Specifically, the inward depth of the circular groove end 14 of the upper pin punch 13 matches the exposed height of the secondary shaft pin.

[0016] Specifically, the first surface 5 and the second surface 6 are arranged in a stepped manner, and a first moving rod fixing groove 15 is provided at the stepped section. The first moving rod fixing groove 15 matches the position of the moving rod on the secondary shaft when the secondary shaft is located in the first secondary shaft fixing groove 7. The fixture 4 is also provided with a second moving rod fixing groove 10, which matches the position of the moving rod on the secondary shaft when the secondary shaft is located in the second secondary shaft fixing groove 8. In use, the secondary shaft 1 is placed in the first secondary shaft fixing groove 7 or the second secondary shaft fixing groove 8. When the secondary shaft 1 is placed in the first secondary shaft fixing groove 7, the moving rod 3 is placed in the first moving rod fixing groove 15. When the secondary shaft 1 is placed in the second secondary shaft fixing groove 8, the moving rod 3 is placed in the second moving rod fixing groove 10. This can protect the moving rod 3 during the loading and unloading of the shaft pin 2. When disassembling pin 2, place the sub-shaft 1 in the first sub-shaft fixing groove 7 or the second sub-shaft fixing groove 8, align the conical end 12 of the pin-removing punch 11 with pin 2, and apply force to the tail of the pin-removing punch 11 with a hammer or other tool to dislodge pin 2 from the sub-shaft 1 into pin hole 9. When installing pin 2, place the sub-shaft 1 in the first sub-shaft fixing groove 7 or the second sub-shaft fixing groove 8, place pin 2 in pin hole on sub-shaft 1, and apply force to the tail of the upper pin punch 13 with a hammer or other tool to insert the upper pin punch 13 into pin hole of sub-shaft 1. The circular groove end 14 inside the upper pin punch 13 exposes pin 2 from sub-shaft 1 by a certain size. Specifically, the fixture 4 is made of nylon, which can protect the sub-shaft 1 and moving rod 3 from damage during assembly or disassembly of the sub-shaft pin.

[0017] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any modifications, alterations, substitutions, and variations made by those skilled in the art to the above embodiments are within the scope of the present invention.

Claims

1. A tool for assembling or disassembling the secondary shaft pin of a binary two-position relay, characterized in that: The tool includes a fixture (4), which has a first surface (5) and a second surface (6) on its top surface. The first surface (5) and the second surface (6) are respectively provided with a first secondary shaft fixing groove (7) and a second secondary shaft fixing groove (8). The first secondary shaft fixing groove (7) and the second secondary shaft fixing groove (8) are both matched with the relay secondary shaft. The first secondary shaft fixing groove (7) and the second secondary shaft fixing groove (8) are in opposite directions. The first secondary shaft fixing groove (7) and the second secondary shaft fixing groove (8) are both provided with a shaft pin hole (9) that matches the shaft pin. The shaft pin hole (9) is a through hole that penetrates to the bottom of the fixture (4). The tool also includes a pin ejector punch. The head (11) and the upper pin punch (13) are provided. The upper pin punch (11) has an outwardly protruding conical end (12) and the upper pin punch (13) has an inwardly recessed circular groove end (14). The first surface (5) and the second surface (6) are arranged in a stepped manner. The step is provided with a first moving rod fixing groove (15). The first moving rod fixing groove (15) matches the position of the moving rod on the secondary shaft when the secondary shaft is located in the first secondary shaft fixing groove (7). The fixture (4) is also provided with a second moving rod fixing groove (10). The second moving rod fixing groove (10) matches the position of the moving rod on the secondary shaft when the secondary shaft is located in the second secondary shaft fixing groove (8).

2. The tool for assembling or disassembling the secondary shaft pin of a binary two-position relay according to claim 1, characterized in that: The recessed depth of the groove end (14) of the upper pin punch (13) matches the exposed height of the secondary shaft pin.

3. The tool for assembling or disassembling the secondary shaft pin of a binary two-position relay according to claim 1, characterized in that: The fixture (4) is a nylon fixture.

Images