CN215510824U - Locating pin extracting tool - Google Patents
Locating pin extracting tool Download PDFInfo
- Publication number
- CN215510824U CN215510824U CN202120356547.0U CN202120356547U CN215510824U CN 215510824 U CN215510824 U CN 215510824U CN 202120356547 U CN202120356547 U CN 202120356547U CN 215510824 U CN215510824 U CN 215510824U
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- China
- Prior art keywords
- pull rod
- hole
- pin
- locating pin
- cylindrical
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Abstract
The utility model belongs to the field of mechanical assembly, and discloses a positioning pin disassembling tool, which comprises: the device comprises a cover plate, a U-shaped sleeve, a pull rod, a nut, N holding claws and N springs; this instrument cover is on the locating pin that will dismantle, and the pull rod up-movement, spring release are embraced the claw and are embraced the locating pin tightly, are making the nut rotatory to compressing tightly the apron direction, because the locating pin hinders the pull rod and takes place rotatoryly, so the pull rod can the rebound, and the inclined hole can make and embrace the claw and embrace the power of locating pin more and more greatly during pull rod rebound, extract the locating pin that will dismantle through upwards carrying the pull rod at last, and whole in-process can not produce transverse force, can not produce the destruction to the mounting hole.
Description
Technical Field
The utility model belongs to the field of mechanical assembly, and particularly relates to a positioning pin disassembling tool.
Background
As shown in fig. 1, when the bottom hole of the positioning pin is a blind hole and needs to be removed, a general removing tool cannot easily apply axial force to the optical axis to pull out the positioning pin, and the transverse force generated during improper operation can damage the bottom hole or the mounting surface.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a positioning pin dismounting tool which can be used for dismounting a positioning pin with a blind mounting bottom hole. The tool guarantees that radial force is applied to the positioning pin, the applied radial force can be gradually increased along with the increase of the pulling force, and damage to an installation bottom hole or an installation surface in the process of disassembling the positioning pin is effectively avoided.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a locating pin removal tool, comprising: the device comprises a cover plate, a U-shaped sleeve, a pull rod, a nut, N holding claws and N springs;
the cover plate is fixed at the opening end of the U-shaped sleeve; the middle part of the cover plate is provided with a first through hole;
the pull rod comprises two sections, wherein the upper section is a threaded section, and the lower section is a cylindrical section; the lower section of the pull rod is arranged in the U-shaped sleeve, and the upper section of the pull rod penetrates through the first through hole; the diameter of the first through hole is larger than the major diameter of the thread of the threaded section of the pull rod;
the nut is sleeved on the threaded section of the pull rod, and the lower end face of the nut is tightly attached to the upper end face of the cover plate; the nut is used for driving the pull rod to move up and down through rotation;
the lower end face of the pull rod cylindrical section is provided with N centripetal chutes which form an angle of a degrees with the vertical direction;
the N holding claws are arranged in the chute through N springs, one end of each spring is connected with the bottom end of the centripetal chute, and the other end of each spring is connected with the upper end of each holding claw;
the bottom of the U-shaped sleeve is provided with a second through hole; the second through hole is used for inserting the positioning pin to hold the positioning pin tightly through the holding claw, and the second through hole is in clearance fit with the positioning pin.
Further, the tool further comprises: a first cylindrical pin; a cylindrical pin hole is formed in the first through hole of the cover plate along the radial direction, and a positioning groove is formed in the outer surface of the pull rod and corresponds to the cylindrical pin hole along the axial direction; one end of the first cylindrical pin is arranged in the cylindrical pin hole; the other end is inserted into the positioning groove to prevent the pull rod from rotating.
Furthermore, one side of the holding claw close to the circle center is a section of cambered surface matched with the cylindrical surface of the positioning pin.
Further, N is not less than 2.
Further, the centripetal inclined groove points to the center of the pull rod.
Further, the angle a between the centripetal chute and the vertical direction is 30.
Furthermore, the tool also comprises N second cylindrical pins, and the second cylindrical pins are arranged between the side wall of the centripetal skewed slot and the holding claw; the second cylindrical pin is used for preventing the holding claw from rotating.
A positioning pin dismounting tool can realize the dismounting of a positioning pin with a blind hole as an installation bottom hole. This structure guarantees to exert the axial force only to the locating pin, and the axial force of exerting can increase along with pulling the increase of lift gradually, effectively avoids dismantling the locating pin in-process and produces destruction to installation bottom outlet or installation face.
Drawings
FIG. 1 is a schematic view of a locating pin;
FIG. 2 is a schematic view of a pin remover construction;
the device comprises a pull rod 1, a nut 2, a first cylindrical pin 3, a cover plate 4, a U-shaped sleeve 5, a spring 6, a second cylindrical pin 7 and a holding claw 8.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the detailed description.
A dowel removal tool for removing a dowel as shown in fig. 1, as shown in fig. 2, comprising: the device comprises a pull rod 1, a nut 2, a positioning pin 3, a cover plate 4, a sleeve 5, a spring 6, a cylindrical pin 7 and a holding claw 8; the cover plate 4 is fixed on the sleeve 5 after the integral assembly is finished. As shown in figure 2, before working, the nut 2 is rotated to make the nut 2 far away from the cover plate 4, the positioning pin 3 is used for preventing the pull rod 1 from rotating when the nut 2 is rotated, when the nut 2 is far away from the cover plate 4, the holding claw 8 extends out of the pull rod 1 under the action of the spring 6, and the diameter formed by the holding claw 8 is minimum. During operation pull rod 1 downstream, it contracts in the 1 slash hole of claw 8 compression spring 6 indentation pull rod to embrace, it is the biggest to embrace the diameter that claw 8 formed this moment, overlap this instrument on the cylindrical pin that will dismantle, pull rod 1 up-going, spring 6 releases and embraces claw 8 and embrace the cylindrical pin tightly, it is rotatory to pressing down 4 directions of apron to make nut 2, because locating pin 3 hinders pull rod 1 and takes place rotatoryly, so pull rod 1 can the rebound, the slash hole can make when pull rod 1 rebound embrace claw 8 and embrace the power of cylindrical pin more and more greatly, extract the cylindrical pin that will dismantle through upwards lifting rod 1 at last, whole in-process can not produce transverse force, can not produce the destruction to the mounting hole.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a locating pin extracting tool which characterized in that: the tool comprises: the device comprises a cover plate, a U-shaped sleeve, a pull rod, a nut, N holding claws and N springs;
the cover plate is fixed at the opening end of the U-shaped sleeve; the middle part of the cover plate is provided with a first through hole;
the pull rod comprises two sections, wherein the upper section is a threaded section, and the lower section is a cylindrical section; the lower section of the pull rod is arranged in the U-shaped sleeve, and the upper section of the pull rod penetrates through the first through hole; the diameter of the first through hole is larger than the major diameter of the thread of the threaded section of the pull rod;
the nut is sleeved on the threaded section of the pull rod, and the lower end face of the nut is tightly attached to the upper end face of the cover plate; the nut is used for driving the pull rod to move up and down through rotation;
the lower end face of the pull rod cylindrical section is provided with N centripetal chutes which form an angle of a degrees with the vertical direction;
the N holding claws are arranged in the chute through N springs, one end of each spring is connected with the bottom end of the centripetal chute, and the other end of each spring is connected with the upper end of each holding claw;
the bottom of the U-shaped sleeve is provided with a second through hole; the second through hole is used for inserting the positioning pin to hold the positioning pin tightly through the holding claw, and the second through hole is in clearance fit with the positioning pin.
2. The locating pin remover of claim 1, wherein: the tool further comprises: a first cylindrical pin; a cylindrical pin hole is formed in the first through hole of the cover plate along the radial direction, and a positioning groove is formed in the outer surface of the pull rod and corresponds to the cylindrical pin hole along the axial direction; one end of the first cylindrical pin is arranged in the cylindrical pin hole; the other end is inserted into the positioning groove to prevent the pull rod from rotating.
3. The locating pin remover of claim 1, wherein: one side of the holding claw close to the circle center is a cambered surface matched with the cylindrical surface of the positioning pin.
4. The locating pin remover of claim 1, wherein: n is more than or equal to 2.
5. The locating pin remover of claim 4, wherein: the centripetal inclined groove points to the center of the pull rod.
6. The locating pin remover of claim 1, wherein: the angle a between the centripetal chute and the vertical direction is 30.
7. The locating pin remover of claim 1, wherein: the tool also comprises N second cylindrical pins, and the second cylindrical pins are arranged between the side wall of the centripetal chute and the holding claw; the second cylindrical pin is used for preventing the holding claw from rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356547.0U CN215510824U (en) | 2021-02-09 | 2021-02-09 | Locating pin extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356547.0U CN215510824U (en) | 2021-02-09 | 2021-02-09 | Locating pin extracting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215510824U true CN215510824U (en) | 2022-01-14 |
Family
ID=79799402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120356547.0U Active CN215510824U (en) | 2021-02-09 | 2021-02-09 | Locating pin extracting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215510824U (en) |
-
2021
- 2021-02-09 CN CN202120356547.0U patent/CN215510824U/en active Active
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