CN113843730B - Keep apart static contact spring and touch finger assembly fixture - Google Patents
Keep apart static contact spring and touch finger assembly fixture Download PDFInfo
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- CN113843730B CN113843730B CN202110977345.2A CN202110977345A CN113843730B CN 113843730 B CN113843730 B CN 113843730B CN 202110977345 A CN202110977345 A CN 202110977345A CN 113843730 B CN113843730 B CN 113843730B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The invention relates to an assembly fixture for a spring contact finger of an isolated static contact, which comprises a rotary push rod, wherein the rotary push rod extends along the up-down direction, and the upper end of the rotary push rod is an operation end; the rotary push rod is provided with a poking spring structure which protrudes out of the rotary push rod, and the poking spring structure is used for being in local pushing contact with the spring contact finger in the circumferential direction of the spring contact finger; and a limiting structure is arranged on the rotary push rod, and when the limiting structure is used for positioning the rotary push rod relative to the spring contact finger mounting groove in the up-down direction, the poking spring structure is adjacent to the upper edge of the spring contact finger mounting groove. When the spring contact finger is installed, the pushing force applied by the spring poking structure to the spring contact finger is a continuous soft force, so that the technical problem that the silver plating surface of the spring contact finger is damaged due to collision when the spring contact finger is installed in the prior art is effectively solved.
Description
Technical Field
The invention relates to an assembly fixture for a spring contact finger of an isolation static contact.
Background
At present, a spring contact finger is mostly assembled in the isolation static contact and is used for being connected with a moving contact. The isolation fixed contact provided with the spring contact finger is shown in fig. 1, and comprises a fixed contact conductor 1 and an epoxy resin sleeve 6, wherein one end of the fixed contact conductor 1 is a busbar connecting end 2, the other end of the fixed contact conductor 1 is a moving contact connecting end 3, and the moving contact connecting end 3 is coated in the epoxy resin sleeve 6. The movable contact connecting end 3 is internally provided with a movable contact connecting cavity 4, and a spring contact finger mounting groove 5 and a movable contact guide ring mounting groove 7 are arranged in the movable contact connecting cavity 4.
When the spring contact finger is assembled, the spring contact finger is required to be installed in the spring contact finger installation groove 5 through the epoxy resin sleeve 6 and the moving contact connecting cavity 4, and because the inner diameter of the epoxy resin sleeve 6 is smaller, the common practice is to firstly place the spring contact finger at the end face of the moving contact connecting end 3, and then insert the elongated hook into the moving contact connecting cavity 4, but the radial dimension of the spring contact finger is larger than that of the moving contact connecting cavity 4, so that in the process of installing the spring contact finger, the elongated hook and the spring contact finger impact on all parts in the circumferential direction to enable the spring contact finger to enter the moving contact connecting cavity 4, and at the moment, the elongated hook pushes the spring contact finger to pass through the moving contact guide ring installation groove 7, and the spring contact finger is regulated to be supported in the spring contact finger installation groove 5 by utilizing the self-restoring elastic force of the spring contact finger. The collision between the slender hook and the spring contact finger can damage the silver plating surface of the spring contact finger surface, and the conductivity of the isolated static contact is seriously affected.
Disclosure of Invention
The invention aims to provide an assembly fixture for isolating spring contact fingers of a fixed contact, which is used for solving the technical problem that silver plating surfaces on the surfaces of spring contact fingers are damaged due to collision when the spring contact fingers are installed in the prior art.
In order to achieve the above purpose, the technical scheme of the assembly fixture for the spring contact fingers of the isolated static contact provided by the invention is as follows:
the rotary pushing rod extends along the up-down direction, and the upper end of the rotary pushing rod is an operation end; the rotary push rod is provided with a poking spring structure which protrudes out of the rotary push rod, and the poking spring structure is used for being in local pushing contact with the spring contact finger in the circumferential direction of the spring contact finger; and a limiting structure is arranged on the rotary push rod, and when the limiting structure is used for positioning the rotary push rod relative to the target spring contact finger mounting groove in the up-down direction, the spring poking structure is closely adjacent to the upper edge of the target spring contact finger mounting groove.
The beneficial effects are that: the invention provides an assembly fixture for an isolated static contact spring contact finger, which comprises a rotary push rod, wherein a poking spring structure is arranged on the rotary push rod and is in partial pushing contact with the spring contact finger, when the rotary push rod is positioned by a limiting structure, the poking spring structure is positioned at the upper edge of a target spring contact finger mounting groove, at the moment, a pushed corresponding section on the spring contact finger enters the spring contact finger mounting groove, the rotary push rod is rotated through an operating end to drive the poking spring structure to move along the upper edge of the target spring contact finger mounting groove in the circumferential direction, and the poking spring structure is in partial pushing contact with the spring contact finger in sequence. Under the pushing of the poking spring structure, the spring contact finger completely enters the target spring contact finger mounting groove. Because the spring poking structure and the spring contact finger are in partial pushing contact in sequence only in the circumferential direction of the spring contact finger mounting groove, the deformation generated by the compression of the spring contact finger is small, and the compression part of the spring contact finger is easier to enter the target spring contact finger mounting groove. Meanwhile, when the rotary push rod rotates, due to the effect of the limiting structure, the poking spring structure can be always located at the upper edge of the target spring contact finger mounting groove in the rotating process, so that the poking spring structure is continuously and softly applied to the pressure of the spring contact finger, and collision with the spring contact finger is avoided. The technical problem that the silver plating surface of the spring contact finger is damaged due to collision when the spring contact finger is installed in the prior art is effectively solved.
As a further improvement, a positioning cylinder is matched with the outside of the rotary push rod, the lower end of the positioning cylinder is a positioning end, and the positioning end is used for being inserted into the moving contact connecting cavity, so that the positioning cylinder can convey the spring contact direction to the moving contact connecting cavity.
The beneficial effects are that: because the radial dimension of the spring contact finger is larger than that of the moving contact connecting cavity, the positioning end is inserted into the moving contact connecting cavity, so that when the spring contact finger enters the moving contact connecting cavity through the guide cylinder, the spring contact finger does not need to be partially pushed and deformed in sequence by rotating the push rod, and the abrasion to the silver plating surface of the spring contact finger is reduced.
As a further improvement, the positioning cylinder is provided with a stop turning edge, and when the stop turning edge positions the positioning cylinder relative to the target spring contact finger mounting groove in the up-down direction, the positioning end is adjacent to the upper edge of the target spring contact finger mounting groove.
The beneficial effects are that: the stop overturning edge can position the positioning cylinder in the up-down direction, so that the positioning cylinder and the epoxy resin sleeve can be kept stable when the spring contact finger is installed. Meanwhile, the positioning of the positioning cylinder can be rapidly completed by means of the stop turning edge. The positioning end is closely adjacent to the upper edge of the spring contact finger mounting groove, so that when the spring contact finger is pushed out of the positioning cylinder by the spring pulling structure, the spring contact finger can directly enter the target spring contact finger mounting groove, and abrasion of the spring contact finger in the moving contact connecting cavity is avoided.
As a further improvement, the positioning cylinder is provided with a positioning cushion block in a matched manner, and the positioning cushion block is in pushing contact with the positioning cylinder so as to adjust the position of the positioning end in the up-down direction.
The beneficial effects are that: the height of the positioning end of the positioning cushion block is adjusted in a heightening mode, and the operation is convenient. The positioning cylinder can be provided with spring contact fingers in spring contact finger mounting grooves with different heights by matching with the positioning cushion block, so that the applicability of the positioning cylinder is improved.
As a further improvement, the limit structure comprises a lower limit groove and a limit block, a lower limit groove matching part and a positioning cylinder matching part are arranged on the limit block, the lower limit groove matching part is used for being matched with the lower limit groove in a clamping manner, and the positioning cylinder matching part is used for being matched with the positioning cylinder in a pushing manner.
The beneficial effects are that: the limiting structure comprises a lower limiting groove and a limiting block, and the limiting structure is designed to facilitate processing and assembly and improve working efficiency. Meanwhile, the limiting structure is designed to be detachably assembled, and the position of the limiting block can be adjusted at any time, so that the applicability of the rotary push rod is better.
As a further improvement, the limiting structure comprises a limiting hole and a limiting pin, wherein the limiting pin is provided with a limiting hole matching part and a positioning cylinder matching end, the limiting hole matching part is used for being in plug-in matching with the limiting hole, and the positioning cylinder matching end is used for being in pushing matching with the positioning cylinder.
The beneficial effects are that: the limiting structure comprises a limiting hole and a limiting pin, and the limiting structure is designed to facilitate processing and assembly and improve working efficiency.
As a further improvement, the rotary push rod is of a cylindrical structure.
The beneficial effects are that: the rotary push rod is of a cylindrical structure, so that when the rotary push rod pushes the spring contact finger in the directional cylinder, the resistance is smaller, and meanwhile, raw materials can be saved, and the weight of the tool is reduced.
As a further improvement, the lower end of the rotary push rod is a chamfer, and the lowest part of the chamfer forms a poking spring structure.
The beneficial effects are that: the lower extreme of rotatory ejector pin is the chamfer, and the lower part of chamfer forms dials the spring structure, and design convenient processing practices thrift manufacturing cost like this. Meanwhile, as the spring contact fingers are obliquely arranged in the positioning cylinder, when the spring pushing structure pushes the spring to be disposed, the degree of fit between the bevel and the upper end face of the spring contact fingers is good, so that the stress of the spring contact fingers is uniform, the spring contact fingers can be kept in an initial state in the pushing process, the contact surface of the spring contact fingers and the positioning cylinder is smaller, and the surface abrasion of the spring contact fingers is smaller.
As a further improvement, the operating end of the rotary push rod is provided with a handle.
The beneficial effects are that: the handle is added to facilitate the holding of the operation end, so that the operation is more labor-saving.
As a further improvement, the handle is detachably mounted on the rotary push rod.
The beneficial effects are that: the handle and the rotary push rod are detachably assembled, so that the rotary push rod is convenient to store, and the storage space can be saved by disassembling and storing.
Drawings
FIG. 1 is a schematic diagram of an isolated stationary contact;
fig. 2 is a schematic structural diagram of an assembly fixture for spring contact fingers of an isolated stationary contact in embodiment 1;
FIG. 3 is a schematic view of the rotary push rod of FIG. 2;
FIG. 4 is a schematic view of the positioning barrel of FIG. 2;
FIG. 5 is a schematic view of the positioning pad of FIG. 2;
FIG. 6 is a schematic view of the stopper in FIG. 2;
fig. 7 is a schematic structural view of the spring contact finger assembly fixture of the isolated stationary contact spring contact finger of fig. 2.
Reference numerals illustrate:
in fig. 1, a fixed contact conductor; 2. a busbar connection end; 3. a movable contact connecting end; 4. a moving contact connecting cavity; 5. spring contact finger mounting grooves; 6. an epoxy sleeve; 7. and a moving contact guide ring mounting groove.
Fig. 2 to 7: 1. a positioning cylinder; 11. stopping the turning edge; 12. a positioning end; 2. rotating the push rod; 21. a lower limit groove; 22. a spring-pulling structure; 23. a mounting hole; 24. an operation end; 25. a middle limit groove; 26, upper limit grooves; 3. a handle; 4. a positioning cushion block; 41. a heightening surface; 42. an arc surface; 5. a limiting block; 51. a lower limit groove matching part; 52. a positioning cylinder matching part; 6. a busbar connection end; 7. a movable contact connecting end; 71. a moving contact connecting cavity; 81. a lower spring contact finger mounting groove; 82. a middle spring contact finger mounting groove; 83. an upper spring contact finger mounting groove; 9. an epoxy sleeve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" is not intended to exclude processes, methods comprising such element.
In the description of the present invention, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
The present invention is described in further detail below with reference to examples.
The specific embodiment 1 of the isolated static contact spring contact finger assembly fixture provided by the invention comprises the following components:
the assembly fixture for the spring contact fingers of the isolated static contact in the embodiment comprises a positioning cylinder 1 and a rotary push rod 2, wherein a poking spring structure 22 is arranged on the rotary push rod 2, the poking spring structure 22 is used for pushing the spring contact fingers, when the limiting structure is used for positioning the rotary push rod, the poking spring structure 22 is positioned at the upper edge of a target spring contact finger mounting groove, the spring contact fingers enter the target spring contact finger mounting groove at the lower pushing part, when the rotary push rod 2 is rotated, the poking spring structure 22 rotates along the upper edge of the target spring contact finger mounting groove in the synchronous circumferential direction, and the poking spring structure 22 always keeps partial pushing contact with the spring contact fingers during rotation, so that the force exerted by the poking spring structure 22 on the spring contact fingers is a continuous force, and the poking spring structure 22 and the spring contact fingers are prevented from being impacted. The technical problem that the silver plating surface of the spring contact finger is damaged due to collision when the spring contact finger is installed is effectively solved.
Specifically, as shown in fig. 2, the assembly fixture for the spring contact finger of the isolated static contact according to the embodiment includes: the device comprises a rotary push rod 2, a guide cylinder 1, a limiting structure and a positioning cushion block 4. When the spring contact finger is installed, the guide cylinder 2 is used for conveying the spring contact direction to the moving contact connecting cavity 71. The rotary push rod 2 is inserted into the guide cylinder 1 to push the spring contact finger into the target spring contact finger mounting groove. The limiting structure is arranged on the rotary push rod 2, and when the limiting structure is in pushing contact with the guide cylinder 1, the rotary push rod 2 is positioned relative to the target spring contact finger mounting groove in the up-down direction. When the target spring contact finger mounting groove changes, the positioning cushion block 4 adjusts the position of the guide cylinder 1 in a heightening mode.
As shown in fig. 3, the rotary push rod 2 extends in the up-down direction, the rotary push rod 2 is of a cylindrical structure, the upper end of the rotary push rod 2 is an operation end 24, an installation hole 23 is formed in the operation end 24, the handle 3 is assembled in the installation hole 23 in a plugging manner, and the handle 3 and the rotary push rod 2 are assembled in a detachable manner. The operation end 24 is further provided with a lower limit groove 21, the lower limit groove 21 is used for being matched with the limit block 5, the lower limit groove 21 and the limit block 5 are matched to form a limit structure, the limit block 5 is provided with a lower limit groove matching part 51 and a positioning cylinder matching part 52 as shown in fig. 6, the lower limit groove matching part 51 is used for being matched with the lower limit groove 21 in a clamping mode, and the positioning cylinder matching part 52 is used for being matched with the positioning cylinder 1 in a pushing mode.
The lower end of the rotary push rod 2 is a bevel, and the lower part of the bevel forms a poking spring structure 22. When the spring contact finger is installed, the poking spring structure 22 is in partial pushing contact with the spring contact finger. When the poking spring structure 22 is in partial pushing contact with the spring contact finger, a partial contact surface is correspondingly arranged on the spring contact finger, and the size of the partial contact surface is far smaller than the whole size of the spring contact finger in the circumferential direction of the spring contact finger. When the rotary push rod 2 finishes positioning relative to the target spring contact finger mounting groove, the poking spring structure 22 is closely adjacent to the upper edge of the target spring contact finger mounting groove, the part of the poking spring structure 22 is pushed by the part, which is pressed on the spring contact finger, of the poking spring structure 22, and the part is pushed by the part, which is pushed by the part, of the poking spring structure 22 and enters the target spring contact finger mounting groove. Rotating the rotary push rod 2, the toggle spring structure 22 can synchronously rotate along the upper circumferential direction of the target spring contact finger mounting groove, and in the rotating process of the toggle spring structure 22, the toggle spring structure 22 is sequentially in partial pushing contact with the part of the spring contact finger which does not enter the target spring contact finger mounting groove along the circumferential direction of the spring contact finger. After the rotary push rod 2 rotates for a circle, the whole spring contact finger is pushed into the target spring contact finger mounting groove.
In this embodiment, the positioning cylinder 1 is matched with the outer portion of the rotary push rod 2, the structure of the positioning cylinder 1 is shown in fig. 4, the positioning cylinder 1 extends along the up-down direction, the upper end of the positioning cylinder 1 is provided with a stop turning edge 11, and when the stop turning edge 11 is directly or indirectly in pushing contact with the epoxy resin sleeve 9, the positioning cylinder 1 is positioned relative to the target spring contact finger mounting groove along the up-down direction, so that the lower end of the positioning cylinder 1 is adjacent to the upper edge of the target spring contact finger mounting groove. The lower end of the positioning cylinder 1 is a positioning end 12, and when the spring contact finger is installed, the positioning end 12 of the positioning cylinder 1 is inserted into the moving contact connecting cavity 71, so that the positioning cylinder 1 conveys the spring contact direction to the moving contact connecting cavity. The positioning cylinder 1 completes positioning by means of the stop turning edge 11, and the positioning end 12 is closely adjacent to the upper edge of the target spring contact finger mounting groove, so that the spring contact finger can directly enter the target spring contact finger mounting groove when being pushed out of the positioning cylinder 1.
In this embodiment, as shown in fig. 2, when the stopper 5 on the rotary push rod 2 is in pushing contact with the stop edge 11 of the positioning cylinder 1, the spring pulling structure 22 on the rotary push rod 2 will expose the positioning end 12 of the positioning cylinder 1, so as to ensure that the spring contact finger can be pushed from the positioning cylinder 1 into the target spring contact finger mounting groove. Of course, when the toggle spring structure 22 on the rotary push rod 2 is flush with the positioning end 12 of the positioning barrel 1, the spring contact finger can be pushed from the positioning barrel 1 into the target spring contact finger mounting groove.
The isolating static contact sleeve device comprises a busbar connecting end 6 and a moving contact connecting end 7, a moving contact connecting cavity 71 is arranged on the moving contact connecting end 7, three spring contact finger mounting grooves are arranged in the moving contact connecting cavity 71, and each spring contact finger mounting groove comprises an upper spring contact finger mounting groove 83, a middle spring contact finger mounting groove 82 and a lower spring contact finger mounting groove 81. The upper spring contact finger mounting groove 83, the middle spring contact finger mounting groove 82 and the lower spring contact finger mounting groove 81 are sequentially arranged at equal intervals in the up-down direction.
When the target spring contact finger mounting groove is the lower spring contact finger mounting groove 81, the spring contact finger is placed in the positioning cylinder 1, and the spring contact finger is inclined in the up-down direction while in the positioning cylinder 1 because the radial dimension of the positioning cylinder 1 is smaller than the radial dimension of the spring contact finger. The positioning end 12 of the positioning cylinder 1 is inserted into the moving contact connecting cavity 71, when the stop turning edge 11 is in direct pushing contact with the epoxy resin sleeve 9, the positioning end 12 is closely adjacent to the upper edge of the lower spring contact finger mounting groove 81, at the moment, the rotary push rod 2 is inserted into the positioning cylinder 1, so that the toggle structure 22 is in partial pushing contact with the lowest end of the spring contact finger, the rotary push rod 2 is pushed downwards, the spring contact finger descends in the positioning cylinder 1 under the pushing of the rotary push rod 2, and when the stop turning edge 11 is in pushing contact with the limiting block 5, the toggle structure 22 is closely adjacent to the upper edge of the lower spring contact finger mounting groove 81, and the lowest end of the spring contact finger is pushed into the lower spring contact finger mounting groove 81. By rotating the rotary push rod 2 through the handle 3, the toggle structure 22 rotates along the upper circumferential direction of the lower spring contact finger mounting groove 81 synchronously, and when the toggle structure 22 rotates, the toggle structure 22 sequentially performs pushing contact with the part of the spring contact finger which does not enter the lower spring contact finger mounting groove 81. When the rotary push rod 2 rotates for one circle, the spring contact fingers are pushed by the spring pulling structure 22 to enter the lower spring contact finger mounting groove 81.
When the target spring contact finger mounting groove is the upper spring contact finger mounting groove 83 or the middle spring contact finger mounting groove 82, the stop overturning edge 11 is in direct pushing contact with the epoxy resin sleeve 9, the positioning end 12 is located below the upper spring contact finger mounting groove 83 or the middle spring contact finger mounting groove 82, the positioning cushion block 4 is arranged in cooperation with the positioning cylinder 1, and the positioning cushion block 4 is used for heightening the positioning cylinder 1, so that the positioning end 12 of the positioning cylinder 1 is closely adjacent to the upper edge of the target spring contact finger mounting groove.
In this embodiment, as shown in fig. 5, the positioning cushion block 4 has a semicircular structure, the positioning cushion block 4 is provided with a raised surface 41 and an arc surface 42, and the thickness of the positioning cushion block 4 is equal to the spacing distance between adjacent spring contact finger mounting grooves. When the positioning cylinder 1 is lifted up by the positioning cushion block 4, the positioning cushion block 4 is placed between the stop turning edge 11 and the epoxy resin sleeve 9, and the stop turning edge 11 and the epoxy resin sleeve 9 are in indirect pushing contact at the moment. When the positioning cushion block 4 is placed, the arc-shaped surfaces 42 of the positioning cushion blocks 4 at the two sides in the horizontal direction are required to be arranged in opposite directions, and the raised surfaces 41 on the positioning cushion blocks 4 at the two sides are formed into round raised surfaces 41, so that the raised surfaces 41 of the positioning cushion blocks 4 are in direct pushing contact with the stop overturning edges 11. It should be noted that, the positioning cushion block 4 only plays a role in raising the positioning cylinder 1, so that the positioning cushion block 4 may have other shapes in other embodiments.
In this embodiment, when the spring contact finger is installed in the middle spring contact finger installation groove 82, a positioning cushion block 4 is respectively placed on two sides of the upper end of the epoxy resin sleeve 9 along the horizontal direction, the arc surfaces 42 of the two positioning cushion blocks 4 are arranged in opposite directions to form a circular pad height surface 41, when the stop turning edge 11 of the positioning cylinder 1 is in pushing contact with the pad height surface 41, the stop turning edge 11 is in pushing contact with the pad height surface 41, and the positioning end 12 of the positioning cylinder 1 is adjacent to the upper edge of the middle spring contact finger installation groove 82. The spring contact fingers can be mounted in the middle spring contact finger mounting groove 82 in the above-described step of mounting the spring contact fingers in the down spring contact finger mounting groove 81.
Similarly, as shown in fig. 7, when the spring contact finger is installed in the upward spring contact finger installation groove 83, two positioning cushion blocks 4 are respectively placed on two sides of the upper end of the epoxy resin sleeve 9 along the horizontal direction, the two positioning cushion blocks 4 on the same side are stacked and arranged, the arc surfaces 42 of the positioning cushion blocks 4 on the two sides are arranged in opposite directions to form a circular heightening surface 41, when the stop turning edge 11 of the positioning cylinder 1 is in pushing contact with the heightening surface 41, the stop turning edge 11 is in pushing contact with the heightening surface 41, and the positioning end 12 of the positioning cylinder 1 is adjacent to the upper edge of the upward spring contact finger installation groove 83. The spring contact fingers can be mounted in the upper spring contact finger mounting slots 83 in the same manner as described above for the step of mounting the spring contact fingers in the lower spring contact finger mounting slots 81.
In this embodiment, the operation end 24 is provided with three limiting grooves along the up-down direction, wherein the three limiting grooves are an upper limiting groove 26, a middle limiting groove 25 and a lower limiting groove 21 respectively, and the spacing distance between adjacent limiting grooves in the three limiting grooves is equal to the distance between adjacent spring contact finger mounting grooves in the three spring contact finger mounting grooves. In this embodiment, the upper limit groove 26 and the middle limit groove 25 are standby grooves and are in an idle state.
The upper limit groove 26 and the middle limit groove 25 are used for quick installation of the spring contact finger. When the spring contact finger is required to be quickly mounted, two positioning cushion blocks 4 are respectively placed on two sides of the upper end of the epoxy resin sleeve 9, so that the positioning end 12 of the positioning cylinder 1 is closely adjacent to the upper edge of the upper spring contact finger mounting groove 83. The limiting block 5 is matched with the upper limiting groove 26 in a clamping way, the spring contact finger to be installed is placed in the positioning cylinder 1, when the limiting block 5 is in pushing contact with the stop turning edge 11, the spring poking structure 22 on the rotary push rod 2 is closely adjacent to the upper edge of the lower spring contact finger installation groove 81, and the spring contact finger can be pushed into the lower spring contact finger installation groove 81 by rotating the rotary push rod 2. The limiting block 5 is matched with the middle limiting groove 25 in a clamping way, the spring contact finger to be installed is placed in the positioning cylinder 1, when the limiting block 5 is in pushing contact with the stop turning edge 11, the spring poking structure 22 on the rotary push rod 2 is closely adjacent to the upper edge of the middle spring contact finger installation groove 82, and the rotary push rod 2 is rotated to push the spring contact finger into the middle spring contact finger installation groove 82. The limiting block 5 is matched with the lower limiting groove 21 in a clamping way, and the spring contact finger can be pushed into the upper spring contact finger mounting groove 83 by repeating the steps. Thus, the spring contact finger can be mounted without raising the positioning cylinder 1. However, in the above-mentioned quick mounting method, when the spring contact finger is mounted in the downward spring contact finger mounting groove 81 and the middle spring contact finger mounting groove 82, the spring contact finger and the moving contact connecting cavity 71 inevitably generate friction, so that the spring contact finger is damaged to some extent, but the damage is negligible compared with the abrasion from the outside of the spring contact finger from the moving contact connecting cavity 71 to the inside of the moving contact connecting cavity 71 due to deformation caused by extrusion.
The spring contact finger assembly fixture provided by the invention comprises the positioning cylinder 1 and the rotary push rod 3, wherein the positioning cylinder 1 is used for positioning and guiding the outer side of the spring contact finger driven contact connecting cavity 71 to the upper edge of the target spring contact finger mounting groove, so that the abrasion of the spring contact finger from the outer side of the spring contact finger driven contact connecting cavity 71 to the inner side of the moving contact connecting cavity 71 due to deformation caused by extrusion is avoided. The spring poking structure 22 is arranged on the rotary push rod 2 in a protruding mode, the spring poking structure 22 is used for pushing the spring contact fingers to enter the target spring contact finger mounting groove 8, in the pushing process, the spring poking structure 22 is always in contact with the spring contact fingers, and the technical problem that the silver plating surface of the spring contact fingers is damaged due to collision when the spring contact fingers are mounted is effectively solved.
The specific embodiment 2 of the isolated static contact spring contact finger assembly tool provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the rotary push rod is of a cylindrical structure, the lower end of the rotary push rod is of a chamfer surface, the lowest part of the chamfer surface forms a poking spring structure, and the poking spring structure protrudes downwards to be arranged on the rotary push rod. In this embodiment, the rotary push rod is in an L-shaped rod structure, the outer end of the cross rod at the lower end of the rotary push rod forms a spring-pulling structure, the spring-pulling structure is arranged to protrude outwards to form the rotary push rod, the outer end of the cross rod at the lower end can make partial pushing contact with the spring contact finger, the rotary push rod is rotated, and in the circumferential direction of the spring contact finger, the spring-pulling structure is sequentially in partial pushing contact with the upper end surface of the spring contact finger, so that the spring contact finger can be installed in the target spring contact finger installation groove.
The specific embodiment 3 of the isolated static contact spring contact finger assembly fixture provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the toggle spring structure is integrally designed with the rotary ejector pin. In this embodiment, the rotatory ejector pin is the shaft-like structure, and the lower extreme of rotatory ejector pin is equipped with the mounting hole, dials the spring structure and adopts the driving lever, driving lever and mounting hole grafting assembly, driving lever and rotatory ejector pin mutually perpendicular, and the driving lever is used for with the local top of spring contact finger to push away the contact.
The specific embodiment 4 of the isolated static contact spring contact finger assembly fixture provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the lower end of the rotary ejector pin is a chamfer, and the lowest part of the chamfer forms a toggle structure. In this embodiment, the lower end of the rotary push rod is of a continuous step structure, and in the up-down direction, a suitable step level is selected as a spring-pulling structure, the step level can be in partial pushing contact with the spring contact finger, the rotary push rod is rotated, and in the circumferential direction of the target spring contact finger mounting groove, the step level can also be in partial pushing contact with the upper end surface of the spring contact finger in sequence, so that the spring contact finger is mounted in the target spring contact finger mounting groove.
The specific embodiment 5 of the isolated static contact spring contact finger assembly tool provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the positioning end is immediately adjacent to the upper edge of the spring finger mounting groove when the positioning cylinder is positioned. In this embodiment, when the positioning cylinder completes positioning, the positioning end just enters the moving contact connecting cavity, and when the spring contact finger is pushed out of the positioning cylinder, the spring contact finger is located in the moving contact connecting cavity, and the spring contact finger continues to move downwards for a certain distance under the pushing of the spring pulling structure, so that the spring contact finger can enter the spring contact finger mounting groove.
The specific embodiment 6 of the isolated static contact spring contact finger assembly tool provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the limit structure includes a lower limit groove and a limit block. In this embodiment, limit structure includes spacing hole and spacer pin, is equipped with spacing hole on the operation end of rotatory ejector pin, is equipped with spacing hole cooperation portion and positioning tube cooperation end on the spacer pin, can also be relative target spring contact finger mounting groove location in the upper and lower direction of rotatory ejector pin.
The specific embodiment 7 of the isolated static contact spring contact finger assembly tool provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the handle is assembled separately to the rotary push rod. In this embodiment, the handle is integrally welded to the rotary push rod.
The specific embodiment 8 of the isolated static contact spring contact finger assembly tool provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the inner cylinder of the positioning cylinder is a cylinder. In this embodiment, the positioning cylinder is a square cylinder, the radial dimension of the square cylinder is smaller than the radial dimension of the moving contact connecting cavity, and the lower end of the square cylinder is inserted into the moving contact connecting cavity, so that the spring contact direction can be conveyed to the moving contact connecting cavity.
The specific embodiment 9 of the isolated static contact spring contact finger assembly tool provided by the invention comprises the following components:
this embodiment differs from embodiment 1 in that: in embodiment 1, the stop flange is provided at the upper end of the positioning cylinder. In this embodiment, the stop edge is arranged near the upper end of the positioning cylinder, and when the rotary push rod is matched with the positioning cylinder, the limiting structure of the rotary push rod is used for pushing and matching with the upper end surface of the positioning cylinder.
It should be noted that the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, but may be modified without inventive effort or equivalent substitution of some technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Keep apart static contact spring contact finger assembly fixture, its characterized in that includes: the rotary pushing rod (2), the rotary pushing rod (2) extends along the up-down direction, and the upper end of the rotary pushing rod (2) is an operation end (24); the rotary push rod (2) is integrally or separately provided with a poking spring structure (22) which protrudes out of the rotary push rod (2), and the poking spring structure (22) is used for being in partial pushing contact with the spring contact finger in the circumferential direction of the spring contact finger; a limiting structure is arranged on the rotary push rod (2), and when the limiting structure positions the rotary push rod (2) relative to the target spring contact finger mounting groove in the up-down direction, the spring poking structure (22) is adjacent to the upper edge of the target spring contact finger mounting groove; the rotary push rod (2) is externally matched with a positioning cylinder (1), the lower end of the positioning cylinder (1) is a positioning end (12), and the positioning end (12) is used for being inserted into a moving contact connecting cavity (71), so that the positioning cylinder (1) can convey a spring contact direction to the moving contact connecting cavity (71); a stop turning edge (11) is arranged on the positioning cylinder (1), and when the stop turning edge (11) positions the positioning cylinder (1) relative to the target spring contact finger mounting groove in the up-down direction, the positioning end (12) is adjacent to the upper edge of the target spring contact finger mounting groove; when the spring contact finger is installed, when the spring poking structure is positioned at the upper edge of the target spring contact finger installation groove, at the moment, the pushed corresponding section of the spring contact finger enters the spring contact finger installation groove, the rotating ejector rod is rotated through the operation end to drive the spring poking structure to move along the upper edge of the target spring contact finger installation groove, the spring poking structure is sequentially and partially pushed to be contacted with the upper end surface of the spring contact finger, and the spring contact finger completely enters the target spring contact finger installation groove under the pushing of the spring poking structure.
2. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 1, wherein the positioning cylinder (1) is provided with a positioning cushion block (4) in a matched mode, and the positioning cushion block (4) is in pushing contact with the positioning cylinder (1) so as to adjust the position of the positioning end (12) in the up-down direction.
3. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 1 or 2, wherein the limiting structure comprises a lower limiting groove (21) and a limiting block (5), a lower limiting groove matching part (51) and a positioning cylinder matching part (52) are arranged on the limiting block (5), the lower limiting groove matching part (51) is used for being matched with the lower limiting groove (21) in a clamping mode, and the positioning cylinder matching part (52) is used for being matched with the positioning cylinder (1) in a pushing mode.
4. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 1 or 2, wherein the limiting structure comprises a limiting hole and a limiting pin, the limiting pin is provided with a limiting hole matching part and a positioning cylinder matching end, the limiting hole matching part is used for being in plug-in matching with the limiting hole, and the positioning cylinder matching end is used for being in pushing matching with the positioning cylinder (1).
5. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 1 or 2, wherein the rotary push rod (2) is of a cylindrical structure.
6. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 5, wherein the lower end of the rotary push rod (2) is a chamfer, and the lowest part of the chamfer forms a poking spring structure (22).
7. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 5, wherein a handle (3) is assembled on an operation end (24) of the rotary push rod (2).
8. The assembly fixture for the spring contact fingers of the isolated static contact according to claim 7, wherein the handle (3) is detachably assembled on the rotary push rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977345.2A CN113843730B (en) | 2021-08-24 | 2021-08-24 | Keep apart static contact spring and touch finger assembly fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977345.2A CN113843730B (en) | 2021-08-24 | 2021-08-24 | Keep apart static contact spring and touch finger assembly fixture |
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| Publication Number | Publication Date |
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| CN113843730A CN113843730A (en) | 2021-12-28 |
| CN113843730B true CN113843730B (en) | 2023-06-09 |
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| CN202110977345.2A Active CN113843730B (en) | 2021-08-24 | 2021-08-24 | Keep apart static contact spring and touch finger assembly fixture |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000082562A (en) * | 1998-09-08 | 2000-03-21 | Dai Ichi Denshi Kogyo Kk | Contact pull-out tool |
| CN203506799U (en) * | 2013-09-16 | 2014-04-02 | 江苏瑞安贝医疗器械有限公司 | Anastomat torsional spring installation tool |
| CN105171672B (en) * | 2015-10-26 | 2017-03-22 | 新乡巴山航空材料有限公司 | Steel wire threaded sleeve installation tool free of installation handles |
| CN207459520U (en) * | 2017-09-19 | 2018-06-05 | 广东电网有限责任公司江门供电局 | A kind of tool specially for attaching and detaching of 10kV car switches Mume flower contact spring |
| CN209223990U (en) * | 2018-12-28 | 2019-08-09 | 常熟中勤建材有限公司 | A kind of spring assembling fixture of shutter |
| CN212265707U (en) * | 2020-03-10 | 2021-01-01 | 无锡务达机械科技股份有限公司 | Tailless thread insert mounting tool |
| CN212161637U (en) * | 2020-07-10 | 2020-12-15 | 温州新光银触头有限公司 | Plum blossom contact equipment convenient to installation |
| CN212763318U (en) * | 2020-08-14 | 2021-03-23 | 徐州中矿汇弘矿山设备有限公司 | Convenient assembly and disassembly tools of pick jump ring |
| CN112091894A (en) * | 2020-09-09 | 2020-12-18 | 北京品驰医疗设备有限公司 | Assembling tool for inclined coil spring and assembling method of inclined coil spring |
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