CN214394023U - Cylindrical spring pin dismounting clamp - Google Patents
Cylindrical spring pin dismounting clamp Download PDFInfo
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- CN214394023U CN214394023U CN202023175197.2U CN202023175197U CN214394023U CN 214394023 U CN214394023 U CN 214394023U CN 202023175197 U CN202023175197 U CN 202023175197U CN 214394023 U CN214394023 U CN 214394023U
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- tong
- tong body
- hinged
- spring pin
- ejector rod
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Abstract
The utility model discloses a cylindrical spring pin dismounting clamp, which consists of an inner clamp body, an outer support rod, an inner support rod and an ejector rod; the inner tong body and the front part of the outer tong body are crossed and hinged to form a tong-shaped structure; the two outer supporting rods are respectively and elastically connected to the tail parts of the inner tong body and the outer tong body, the tail parts of the two outer supporting rods are respectively hinged with one end of one inner supporting rod, and the other ends of the two inner supporting rods are hinged through a connecting shaft; one end of the ejector rod is connected with the connecting shaft, and the other end of the ejector rod penetrates through a hinged part of the inner tong body and the outer tong body. Cylindrical spring round pin dismouting pincers can realize making cylindrical spring round pin keep horizontal gesture dismouting in limited operating space, improve and disassemble and assembly efficiency, avoid causing unnecessary to damage to part and casing on every side.
Description
Technical Field
The utility model belongs to the technical field of cylinder spring catch assembly and disassembly tools, concretely relates to cylinder spring catch dismouting pincers.
Background
The cylindrical spring pin is a headless hollow cylindrical body, is axially grooved, has chamfers at the end parts of two ends, has good elasticity and shearing resistance, and is widely applied to positioning, connection or fixation of parts. The outer diameter of the cylindrical spring pin is slightly larger than the assembly aperture, and is in interference fit or over fit with the assembly aperture, and as large external force needs to be applied to the assembly of the cylindrical spring pin and the space of the installation position of the cylindrical spring pin is limited, a special dismounting tool needs to be adopted for dismounting the cylindrical spring pin.
For example, in the disassembling and assembling processes of the existing longitudinally-arranged transmission, when a cylindrical spring pin for positioning a shifting fork and a shifting fork shaft is disassembled and assembled, the cylindrical spring pin and an assembling hole are in interference fit (or excessive fit), the disassembling and assembling operation space of the cylindrical spring pin is insufficient, and in addition, the disassembling and assembling manufacturability and other reasons cause great difficulty for the disassembling and assembling of the cylindrical spring pin; in addition, due to the particularity of the installation position of the cylindrical spring pin, the cylindrical spring pin needs to be assembled and disassembled in a horizontal posture, otherwise, other surrounding parts or the transmission shell are easy to collide and damage; however, the existing assembling and disassembling tool for the cylindrical spring pin is difficult to horizontally assemble and disassemble the cylindrical spring pin due to structural particularity, so that the efficiency is low due to inconvenient operation, and unnecessary damage is easily caused to other surrounding parts or a transmission shell.
Disclosure of Invention
To the defect that exists among the above-mentioned prior art, the utility model discloses a cylindrical spring round pin dismouting pincers realizes making cylindrical spring round pin keep horizontal gesture dismouting in limited operating space, improves and disassembles and assembly efficiency, avoids causing unnecessary to damage to part and casing on every side. With the attached drawings, the technical scheme of the utility model is as follows:
a cylindrical spring pin dismounting clamp comprises an inner clamp body 1, an outer clamp body 2, an outer support rod 3, an inner support rod 4 and an ejector rod 6;
the front parts of the inner tong body 1 and the outer tong body 2 are crossed and hinged to form a tong-shaped structure;
the two outer supporting rods 3 are respectively and elastically connected to the tails of the inner tong body 1 and the outer tong body 2, the tails of the two outer supporting rods 3 are respectively hinged with one end of one inner supporting rod 4, and the other ends of the two inner supporting rods 4 are hinged through a connecting shaft 9;
one end of the ejector rod 6 is connected with the connecting shaft 9, and the other end of the ejector rod 6 penetrates through a hinged part of the inner tong body 1 and the outer tong body 2.
Furthermore, the front ends of the inner tong body 1 and the outer tong body 2 are both provided with tong head positioning and clamping parts, the tong head positioning and clamping parts are of a double-layer structure which is arranged in parallel from top to bottom, and the clamping surfaces of the tong head positioning and clamping parts of the inner tong body 1 and the outer tong body 2 are concave semicircular arc surfaces which are matched with each other.
Furthermore, the front parts of the inner tong body 1 and the outer tong body 2 are hinged at the position of a cross point through a tong body positioning shaft 7;
one end of the caliper body positioning shaft 7 is provided with a limit edge for limiting one end in the axial direction, and the other end of the caliper body positioning shaft 7 is provided with an external thread and is in threaded fit connection with the positioning shaft matching nut 8 to limit the other end in the axial direction.
Furthermore, the end part of the ejector rod 6 penetrates through an ejector rod matching through hole radially formed in the middle of the caliper body positioning shaft 7 and is in clearance fit with the ejector rod matching through hole.
Further, a shaft hole formed in one end of the ejector rod 6 is in interference fit with the connecting shaft 9.
Further, the inner tong body 1 and the outer tong body 2 are respectively connected with the outer supporting rod 3 through a steel plate spring 5;
the tail ends of the inner tong body 1 and the outer tong body 2 are respectively welded and fixed with one side of a steel plate spring 5, and the other side of the steel plate spring 5 is welded and fixed with the outer supporting rod 3.
Compared with the prior art, the beneficial effects of the utility model reside in that:
cylinder spring round pin dismouting pincers operation safe and reliable, convenient to use and application are nimble, and each component parts processing degree of difficulty is low, convenient operation laborsaving cylinder spring round pin dismouting pincers have shortened the time that cylinder spring round pin was dismantled and is assembled greatly, have avoided dismantling and assembling in unnecessary the damage to other parts of derailleur, improve the work efficiency of assembly and dismantlement.
Drawings
Fig. 1 is a schematic perspective view of a cylindrical spring pin dismounting pincer of the present invention;
FIG. 2 is a front view of the pliers for assembling and disassembling cylindrical spring pins according to the present invention;
fig. 3 is a sectional view taken along line a-a of fig. 2.
In the figure:
1 an inner forceps head body, 2 an outer forceps head body, 3 an outer supporting rod,
4 inner supporting rods, 5 steel plate springs, 6 ejector rods,
7 a clamp body positioning shaft, 8 a positioning shaft matched with a nut and 9 a connecting shaft.
Detailed Description
For clear and complete description of the technical solution and the specific working process of the present invention, the following embodiments are provided in conjunction with the accompanying drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The specific embodiment discloses a cylindrical spring pin dismounting clamp which comprises an inner clamp head clamp body 1, an outer clamp head clamp body 2, an outer supporting rod 3, an inner supporting rod 4, a steel plate spring 5, an ejector rod 6, a clamp body positioning shaft 7, a positioning shaft matching nut 8 and a connecting shaft 9.
The front end of the inner tong head tong body 1 is provided with an inner tong head positioning and clamping part which is of a double-layer structure arranged in parallel from top to bottom, and the clamping surface of the inner tong head positioning and clamping part is an inwards concave semi-circular surface; the front end of the outer tong body 2 is provided with an outer tong positioning and clamping part which is of a double-layer structure arranged in parallel from top to bottom, and the clamping surface of the outer tong positioning and clamping part is a concave semi-circular arc surface matched with the clamping surface of the inner tong positioning and clamping part.
The front parts of the inner tong body 1 and the outer tong body 2 are mutually crossed and hinged at the crossed position through a tong body positioning shaft 7, one end of the tong body positioning shaft 7 is provided with a limiting edge for realizing the limiting of one end in the axial direction, the other end of the tong body positioning shaft 7 is provided with an external thread and is in threaded fit connection with a positioning shaft matching nut 8 to realize the limiting of the other end in the axial direction;
the body location axle 7 is located the interior binding clip location clamping part of interior binding clip body 1 and the outer binding clip location clamping part rear end of outer binding clip body 2, and interior binding clip body 1 realizes opening or closing with outer binding clip body 2 around the rotation of body location axle 7, and when interior binding clip body 1 and outer binding clip body 2 were rotatory closed around binding clip location axle 7, interior binding clip location clamping part and outer binding clip location clamping part butt joint formed with the spare part assorted location clamping part of waiting to install the cylinder spring catch, realized the accurate location of dismouting pincers to guarantee the stability of operation.
The rear end of the inner tong body 1 is welded with a steel plate spring 5 along the length direction, one side of the steel plate spring 5 is welded and fixed with the rear end of the inner tong body 1, the other end of the steel plate spring is welded and fixed with one end of an outer supporting rod 3, the other end of the outer supporting rod 3 is hinged with one end of an inner supporting rod 4, the inner tong body 1 and the corresponding outer supporting rod 3 are arranged in a linear shape, and the inner tong body 1 is not directly connected with the outer supporting rod 3;
the rear end of the outer tong body 2 is welded with another steel plate spring 5 along the length direction, one end of the steel plate spring 5 is welded and fixed with the rear end of the outer tong body 2, the other end of the steel plate spring is welded and fixed with one end of another outer supporting rod 3, the other end of the outer supporting rod 3 is hinged with one end of another inner supporting rod 4, the outer tong body 2 and the corresponding outer supporting rod 3 are arranged linearly, and the outer tong body 2 and the outer supporting rod 3 are not directly connected.
The other ends of the two inner support rods 4 are hinged through a connecting shaft 9, the connecting shaft 9 is in interference fit with a shaft hole formed in one end of a push rod 6, the push rod 6 is located in the middle position between the inner tong body 1 and the outer tong body 2, and the other end of the push rod 6 penetrates through a push rod matching through hole formed in the middle of the tong body positioning shaft 7 in the radial direction and is in clearance fit with the push rod matching through hole.
In the composition structure of the cylindrical spring pin dismounting clamp, the front parts of the inner clamp head clamp body 1 and the outer clamp head clamp body 2 are hinged in a crossed mode, and are respectively connected with the outer supporting rods 3 on the tail extension line in an external mode to form a clamp-shaped structure, the cylindrical spring pin is ejected out or pushed into a corresponding assembly body along the horizontal direction by matching the inner supporting rods 4 and the middle ejector rods 6 which are symmetrically arranged, and efficient and convenient dismounting of the cylindrical spring pin is achieved.
The working process of the cylindrical spring pin dismounting pliers is explained as follows:
1. use cylinder spring pin dismouting pincers "dismantle" the process of cylinder spring pin as follows:
the outer supporting rods 3 are expanded outwards by applying external force to the outer supporting rods 3 manually, the outer supporting rods 3 drive the corresponding steel plate springs 5 to move outwards respectively, the inner tong body 1 and the outer tong body 2 are driven to simultaneously expand outwards by the steel plate springs 5, the positioning clamping parts at the front ends of the inner tong body 1 and the outer tong body 2 are opened, the positioning clamping parts are placed to be matched and positioned with the position of an assembly body to be disassembled, at the moment, the outer supporting rods 3 are in an outwards expanded state, so that the inner supporting rods 4 hinged with the outer supporting rods 3 and connected with the ejector rods 6 are also in an opened state, the ejector rods 6 are in a retreating position under the pulling of the inner supporting rods 4, the ejector rods 6 are aligned with the cylindrical spring pins to be disassembled, at the moment, the outer supporting rods 3 are applied with external force manually, the outer supporting rods 3 are closed, the outer supporting rods are closed, and the corresponding steel plate springs 5 are driven to move inwards, and then the inner tong body 1 and the outer tong body 2 are driven by the steel plate spring 5 to simultaneously clamp inwards, at the moment, the positioning clamping parts at the front ends of the inner tong body 1 and the outer tong body 2 start to close, after a certain time of duration, because the inner tong body 1 and the outer tong body 2 cannot move after being closed, the steel plate spring 5 starts to bend and deform under the continuous action of external force, and along with the continuous inward closing movement of the two outer supporting rods 3, the two outer supporting rods 3 push the corresponding inner supporting rods 4 to close inwards, the two inner supporting rods 4 push the connecting shaft 9, and push the push rod 6 through the connecting shaft 9 to push out the cylindrical spring pin on the assembly body to be disassembled, so that the disassembling work of the cylindrical spring pin of the disassembled part is completed.
2. Use cylindrical spring pin dismouting pincers "assemble" cylindrical spring pin's process as follows:
the outer supporting rods 3 are expanded outwards by applying external force to the outer supporting rods 3 manually, the outer supporting rods 3 drive the corresponding steel plate springs 5 to move outwards respectively, the inner tong body 1 and the outer tong body 2 are driven to simultaneously expand outwards by the steel plate springs 5, the positioning clamping parts at the front ends of the inner tong body 1 and the outer tong body 2 are opened, the inner supporting rods 4 hinged with the outer supporting rods 3 and connected with the ejector rods 6 are also opened due to the outward expansion of the outer supporting rods 3, the ejector rods 6 are in retreating positions under the pulling of the inner supporting rods 4, so that vacant positions are reserved at the front ends of the ejector rod matching holes of the tong body positioning shafts 7, cylindrical spring pins to be assembled are placed in the vacant positions at the front ends of the ejector rod matching holes of the tong body positioning shafts 7, and then the positioning clamping parts are placed to be matched and positioned with the positions of the assembled bodies to be assembled, aligning a cylindrical spring pin in a mandril matching hole with an assembling position on an assembly body to be assembled, applying external force to two outer supporting rods 3 manually to close the two outer supporting rods 3 inwards to drive corresponding steel plate springs 5 to move, further driving an inner tong body 1 and an outer tong body 2 to simultaneously clamp inwards through the steel plate springs 5, starting closing a positioning clamping part at the front ends of the inner tong body 1 and the outer tong body 2 at the moment, after a certain time, because the inner tong body 1 and the outer tong body 2 cannot move after being closed, the steel plate springs 5 start bending deformation under the continuous action of the external force, and along with the continuous inward closing movement of the two outer supporting rods 3, the two outer supporting rods 3 push the corresponding inner supporting rods 4 to close inwards, the two inner supporting rods 4 push a connecting shaft 9, and push a mandril 6 to push the cylindrical spring in the mandril matching hole of a mandril positioning shaft 7 of the tong body into the assembling position through the connecting shaft 9 And (4) completing the assembly work of the cylindrical spring pin of the disassembled part.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a cylindrical spring round pin dismouting pincers which characterized in that:
the cylindrical spring pin dismounting clamp consists of an inner clamp head clamp body (1), an outer clamp head clamp body (2), an outer supporting rod (3), an inner supporting rod (4) and an ejector rod (6);
the inner tong body (1) and the front part of the outer tong body (2) are crossed and hinged to form a tong-shaped structure;
the two outer supporting rods (3) are respectively and elastically connected to the tail parts of the inner tong body (1) and the outer tong body (2), the tail parts of the two outer supporting rods (3) are respectively hinged with one end of one inner supporting rod (4), and the other ends of the two inner supporting rods (4) are hinged through a connecting shaft (9);
one end of the ejector rod (6) is connected with the connecting shaft (9), and the other end of the ejector rod (6) penetrates through a hinged part of the inner tong body (1) and the outer tong body (2).
2. The cylinder spring pin dismantling pliers as claimed in claim 1, wherein:
the front ends of the inner tong body (1) and the outer tong body (2) are respectively provided with a tong head positioning clamping part, the tong head positioning clamping parts are of double-layer structures which are arranged in parallel from top to bottom, and the clamping surfaces of the tong head positioning clamping parts of the inner tong body (1) and the outer tong body (2) are concave semi-circular arc surfaces which are matched with each other.
3. The cylinder spring pin dismantling pliers as claimed in claim 1, wherein:
the front parts of the inner tong body (1) and the outer tong body (2) are hinged at the position of a cross point through a tong body positioning shaft (7);
one end of the caliper body positioning shaft (7) is provided with a limit edge for limiting one end in the axial direction, and the other end of the caliper body positioning shaft (7) is provided with an external thread and is in threaded fit connection with the positioning shaft fitting nut (8) to limit the other end in the axial direction.
4. The cylinder spring pin dismantling pliers as claimed in claim 3, wherein:
the end part of the ejector rod (6) penetrates through an ejector rod matching through hole radially formed in the middle of the clamp body positioning shaft (7) and is in clearance fit with the ejector rod matching through hole.
5. The cylinder spring pin dismantling pliers as claimed in claim 1, wherein:
and a shaft hole formed in one end of the ejector rod (6) is in interference fit with the connecting shaft (9).
6. The cylinder spring pin dismantling pliers as claimed in claim 1, wherein:
the inner tong body (1) and the outer tong body (2) are respectively connected with the outer supporting rod (3) through a steel plate spring (5);
the tail ends of the inner tong body (1) and the outer tong body (2) are respectively welded and fixed with one side of a steel plate spring (5), and the other side of the steel plate spring (5) is welded and fixed with the outer supporting rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023175197.2U CN214394023U (en) | 2020-12-25 | 2020-12-25 | Cylindrical spring pin dismounting clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023175197.2U CN214394023U (en) | 2020-12-25 | 2020-12-25 | Cylindrical spring pin dismounting clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214394023U true CN214394023U (en) | 2021-10-15 |
Family
ID=78040977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023175197.2U Active CN214394023U (en) | 2020-12-25 | 2020-12-25 | Cylindrical spring pin dismounting clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214394023U (en) |
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2020
- 2020-12-25 CN CN202023175197.2U patent/CN214394023U/en active Active
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