CN218018001U - Spherical surface positioning tool - Google Patents
Spherical surface positioning tool Download PDFInfo
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- CN218018001U CN218018001U CN202221412028.2U CN202221412028U CN218018001U CN 218018001 U CN218018001 U CN 218018001U CN 202221412028 U CN202221412028 U CN 202221412028U CN 218018001 U CN218018001 U CN 218018001U
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- limiting
- sliding
- valve core
- positioning tool
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Abstract
The utility model relates to the field of valve core processing equipment, in particular to a spherical positioning tool, which comprises a base, a main limiting shaft, a first bolt, two auxiliary limiting shafts, two sliding blocks, a telescopic device, two second bolts, a pressing plate, a spring and an installation table for fixedly installing a valve core; the mounting table is mounted on the base, and a sliding groove is formed in the upper end face of the mounting table; the main limiting shaft is arranged on the mounting table and provided with a plurality of limiting columns; the first bolt is tightly pressed on the valve core under the state that the first bolt is matched with the main limiting shaft; the two sliding blocks are both connected with the inner wall of the sliding chute in a sliding manner, one sliding block is connected with the inner wall of the sliding chute through a spring, and the other sliding block is connected with the inner wall of the sliding chute through a telescopic device; the two auxiliary limiting shafts are respectively arranged on the two sliding blocks; the pressing plate is provided with two through holes for passing through the two auxiliary limiting shafts. The utility model discloses simple structure is convenient for stabilize the centre gripping to the case.
Description
Technical Field
The utility model belongs to the technical field of case processing equipment and specifically relates to a sphere location frock.
Background
The valve core is an important part of the cam deflection valve and plays a role in valve closing, and the specific structure of the valve core is shown in figure 4. The cam bending valve core is a double-eccentric core, in the processing of the core, if the core adopts a conventional clamping mode, the center of the spherical surface of the core can deviate from the rotation center, so that the processing is difficult, the spherical surface processing of the core is particularly important, and the positioning, fixing and clamping of the core are main factors for determining the processing of the core.
Chinese patent with publication number CN214868833U discloses a cam bending valve core spherical surface machining tool, which comprises a fixing mechanism for fixing a valve core, wherein the valve core comprises a spherical surface part, an upper connecting part and a lower connecting part, the upper connecting part is provided with an upper connecting hole, the lower connecting part is provided with a lower connecting hole, the upper connecting hole and the lower connecting hole are coaxially arranged, and the fixing mechanism comprises a base body, a positive positioning block, an auxiliary positioning block, a mandrel and a shaft sleeve; the positive positioning block is provided with a positive positioning hole, the auxiliary positioning block is provided with an auxiliary positioning hole, when the mandrel sequentially penetrates through the positive positioning hole, the lower connecting hole, the upper connecting hole and the auxiliary positioning hole to radially fix the valve element, and the fixing nut is screwed to axially fix the valve element by the shaft sleeve and the positive positioning block, the spherical center of the spherical surface outside the spherical surface part is positioned on the axis of the peripheral surface of the base body, so that the center of the spherical surface part is positioned at the rotation center when the valve element is fixed, the positioning is accurate, the clamping is reliable, and the quality and the efficiency of the machining of the spherical surface of the valve element on a spherical lathe can be greatly improved.
However, the device is inconvenient to stably position and process the valve core, and the practicability of the device is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that exists among the background art, provide a sphere location frock convenient to stabilize the centre gripping to the case.
The technical scheme of the utility model: a spherical positioning tool comprises a base, a main limiting shaft, a first bolt, two auxiliary limiting shafts, two sliding blocks, a telescopic device, two second bolts, a pressing plate, a spring and an installation table for fixedly installing a valve core;
the mounting table is mounted on the base, and a sliding groove is formed in the upper end face of the mounting table;
the main limiting shaft is arranged on the mounting table, and a plurality of limiting columns are arranged on the main limiting shaft; the first bolt is tightly pressed on the valve core under the state that the first bolt is matched with the main limiting shaft;
the two sliding blocks are both connected with the inner wall of the sliding chute in a sliding manner, one sliding block is connected with the inner wall of the sliding chute through a spring, and the other sliding block is connected with the inner wall of the sliding chute through a telescopic device; the two auxiliary limiting shafts are respectively arranged on the two sliding blocks; the pressing plate is provided with two through holes for penetrating through the two auxiliary limiting shafts; and in the valve core installation state, the two second bolts press the pressure plate on the valve core.
Preferably, a first limiting groove and a second limiting groove are formed in the mounting table; the second limiting groove is communicated with the first limiting groove and the sliding groove.
Preferably, the first limiting groove and the second limiting groove are both internally provided with buffer layers.
Preferably, the bottom surface of the pressure plate is upwardly convex to form a curved surface.
Preferably, the rubber pad is also included; the rubber pad is installed in the curved surface.
Preferably, the valve element comprises a spherical surface, a connecting part and a mounting part; the two ends of the connecting part are respectively connected with the mounting part and the spherical surface; the mounting part is provided with a limiting hole used for being matched with the main limiting shaft and the limiting columns.
Preferably, the two auxiliary limiting shafts are provided with a protection ring.
Preferably, the first bolt and the two second bolts are provided with gaskets.
Compared with the prior art, the utility model discloses following profitable technological effect has:
a user clamps the limiting hole of the valve core into the main limiting shaft and the limiting columns in a matching manner, the valve core is preliminarily and stably fixed, and the valve core is fixedly installed through a first bolt; then two supplementary spacing axles pass two through-holes respectively to spacing to two supplementary spacing axles, install the clamp plate by two second bolts, further stabilized the case, make the sphere add man-hour, the device is whole stable to be installed on the mount table, is favorable to improving the machining precision and the quality of sphere, has improved the practicality of device.
The rubber pad is arranged in the curved surface, so that the upper end surface of the valve core body can be protected; the bottom surface of the valve core can be stably supported and protected by arranging the first limiting groove and the second limiting groove and the buffer layers arranged in the first limiting groove and the second limiting groove, and the surface of the valve core is further protected by the fillet, so that the valve core is more stably arranged; cut apart first bolt and two second bolts and case through setting up the gasket, avoid first bolt and two second bolts direct action on the case, protect the case, simple structure for the installation stability more of case also is convenient for process the case.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.
Fig. 4 is a top view of the valve core of the present invention.
Reference numerals are as follows: 1. a base; 2. an installation table; 201. a first limit groove; 202. a second limit groove; 203. a chute; 3. a main limit shaft; 4. a first bolt; 5. a limiting column; 6. an auxiliary limit shaft; 7. a slider; 8. a telescoping device; 9. a second bolt; 10. pressing a plate; 11. a rubber pad; 12. a spring; 21. spherical surface; 22. a connecting portion; 23. an installation part; 204. and a limiting hole.
Detailed Description
Example one
As shown in fig. 1-4, the utility model provides a spherical positioning tool, which comprises a base 1, a main limiting shaft 3, a first bolt 4, two auxiliary limiting shafts 6, two sliders 7, a telescopic device 8, two second bolts 9, a pressing plate 10, a spring 12 and an installation table 2 for fixedly installing a valve core; as shown in fig. 4, the spool includes a spherical surface 21, a connecting portion 22, and a mounting portion 23; the two ends of the connecting part 22 are respectively connected with the mounting part 23 and the spherical surface 21; the mounting part 23 is provided with a limiting hole 204 used for being matched with the main limiting shaft 3 and the limiting columns 5, and the specific structure of the valve core belongs to the prior art.
The mounting table 2 is mounted on the base 1, and the upper end face of the mounting table 2 is provided with a sliding groove 203.
The main limiting shaft 3 is arranged on the mounting table 2, and a plurality of limiting columns 5 are arranged on the main limiting shaft 3; under the first bolt 4 and the main spacing axle 3 cooperation installation state, first bolt 4 compresses tightly on the case.
The two sliding blocks 7 are both connected with the inner wall of the sliding chute 203 in a sliding manner, one sliding block 7 is connected with the inner wall of the sliding chute 203 through a spring 12, and the other sliding block 7 is connected with the inner wall of the sliding chute 203 through a telescopic device 8; the two auxiliary limiting shafts 6 are respectively arranged on the two sliding blocks 7, and the two auxiliary limiting shafts 6 are respectively provided with a protective ring which is used for protecting the connecting part 22; the pressing plate 10 is provided with two through holes for penetrating through the two auxiliary limiting shafts 6, and the bottom surface of the pressing plate 10 protrudes upwards to form a curved surface; in the valve core installation state, the two second bolts 9 press the pressure plate 10 on the valve core.
In the embodiment, when the valve core fixing device is used, a user performs primary stable fixing on the valve core by clamping the limiting hole 204 of the valve core into the main limiting shaft 3 and the limiting posts 5 in a matching manner, and the valve core is fixedly installed by the first bolt 4; then promote a slider 7 through telescoping device 8 and carry out individual removal for supplementary spacing axle 6 compresses tightly on the side end face of connecting portion 22, another supplementary spacing axle 6 of pulling, two supplementary spacing axles 6 pass two through-holes respectively, thereby it is spacing to carry out two supplementary spacing axles 6, install clamp plate 10 by two second bolts 9, further stabilize the case, make sphere 21 add man-hour, the device is overall stable to be installed on mount table 2, be favorable to improving the machining precision and the quality of sphere 21, the practicality of device has been improved.
Example two
As shown in fig. 1 and fig. 3, the utility model provides a spherical positioning tool, which comprises a base 1, a main limiting shaft 3, a first bolt 4, two auxiliary limiting shafts 6, two sliders 7, a telescopic device 8, two second bolts 9, a pressing plate 10, a rubber pad 11, a spring 12 and an installation table 2 for fixedly installing a valve core; as shown in fig. 4, the spool includes a spherical surface 21, a connecting portion 22, and a mounting portion 23; the two ends of the connecting part 22 are respectively connected with the mounting part 23 and the spherical surface 21; the mounting part 23 is provided with a limiting hole 204 used for being matched with the main limiting shaft 3 and the limiting columns 5, and the specific structure of the valve core belongs to the prior art.
The mounting table 2 is mounted on the base 1, and a first limiting groove 201, a second limiting groove 202 and a sliding groove 203 are arranged on the mounting table 2; the second limiting groove 202 is communicated with the first limiting groove 201 and the sliding groove 203, and fillets are arranged in the first limiting groove 201 and the second limiting groove 202; the first limiting groove 201 and the second limiting groove 202 are both provided with buffer layers.
The main limiting shaft 3 is arranged on the mounting table 2, and a plurality of limiting columns 5 are arranged on the main limiting shaft 3; under the state that the first bolt 4 is matched with the main limiting shaft 3, the first bolt 4 is tightly pressed on the valve core.
The two sliding blocks 7 are both connected with the inner wall of the sliding chute 203 in a sliding manner, one sliding block 7 is connected with the inner wall of the sliding chute 203 through a spring 12, and the other sliding block 7 is connected with the inner wall of the sliding chute 203 through a telescopic device 8; the two auxiliary limiting shafts 6 are respectively arranged on the two sliding blocks 7, and the two auxiliary limiting shafts 6 are respectively provided with a protective ring which is used for protecting the connecting part 22; two through holes for penetrating through the two auxiliary limiting shafts 6 are formed in the pressing plate 10, and the bottom surface of the pressing plate 10 protrudes upwards to form a curved surface; the rubber pad 11 is arranged in the curved surface; in the valve core installation state, the two second bolts 9 press the pressure plate 10 on the valve core; the first bolt 4 and the two second bolts 9 are provided with gaskets.
In the embodiment, when the valve core is used, the valve core is stably installed through the main limiting shaft 3 and the two auxiliary limiting shafts 6; the rubber pad 11 is arranged in the curved surface, so that the upper end surface of the valve core body can be protected; the bottom surface of the valve core can be stably supported and protected by arranging the first limiting groove 201 and the second limiting groove 202 and the buffer layers arranged in the first limiting groove 201 and the second limiting groove 202, and the surface of the valve core is further protected by the fillet, so that the valve core is more stably arranged; cut apart first bolt 4 and two second bolts 9 and case through setting up the gasket, avoid first bolt 4 and two second bolts 9 direct actions on the case, protect the case, simple structure for the installation stability more of case also is convenient for process the case.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (8)
1. A spherical surface positioning tool is characterized by comprising a base (1), a main limiting shaft (3), a first bolt (4), two auxiliary limiting shafts (6), two sliding blocks (7), a telescopic device (8), two second bolts (9), a pressing plate (10), a spring (12) and an installation table (2) for fixedly installing a valve core;
the mounting table (2) is mounted on the base (1), and the upper end face of the mounting table (2) is provided with a sliding groove (203);
the main limiting shaft (3) is arranged on the mounting table (2), and a plurality of limiting columns (5) are arranged on the main limiting shaft (3); under the condition that the first bolt (4) is matched with the main limiting shaft (3) for installation, the first bolt (4) is pressed on the valve core;
the two sliding blocks (7) are both in sliding connection with the inner wall of the sliding chute (203), one sliding block (7) is connected with the inner wall of the sliding chute (203) through a spring (12), and the other sliding block (7) is connected with the inner wall of the sliding chute (203) through a telescopic device (8); the two auxiliary limiting shafts (6) are respectively arranged on the two sliding blocks (7); two through holes for passing through the two auxiliary limiting shafts (6) are formed in the pressing plate (10); and in the valve core mounting state, the two second bolts (9) press the pressure plate (10) on the valve core.
2. The spherical positioning tool according to claim 1, wherein the mounting table (2) is provided with a first limiting groove (201) and a second limiting groove (202); the second limit groove (202) is communicated with the first limit groove (201) and the sliding groove (203).
3. The spherical positioning tool as claimed in claim 2, wherein the first limiting groove (201) and the second limiting groove (202) are both provided with a buffer layer therein.
4. The spherical positioning tool as claimed in claim 1, wherein the bottom surface of the pressure plate (10) is raised upward to form a curved surface.
5. The spherical surface positioning tool according to claim 4, further comprising a rubber pad (11); the rubber pad (11) is installed in the curved surface.
6. The spherical surface positioning tool according to claim 1, characterized in that the valve core comprises a spherical surface (21), a connecting part (22) and a mounting part (23); two ends of the connecting part (22) are respectively connected with the mounting part (23) and the spherical surface (21); the mounting part (23) is provided with a limiting hole (204) which is used for being matched with the main limiting shaft (3) and the limiting columns (5).
7. The spherical surface positioning tool according to claim 1, wherein two auxiliary limiting shafts (6) are provided with a protection ring.
8. The spherical surface positioning tool according to claim 1, characterized in that the first bolt (4) and the two second bolts (9) are provided with a gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221412028.2U CN218018001U (en) | 2022-06-02 | 2022-06-02 | Spherical surface positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221412028.2U CN218018001U (en) | 2022-06-02 | 2022-06-02 | Spherical surface positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218018001U true CN218018001U (en) | 2022-12-13 |
Family
ID=84375427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221412028.2U Active CN218018001U (en) | 2022-06-02 | 2022-06-02 | Spherical surface positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218018001U (en) |
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2022
- 2022-06-02 CN CN202221412028.2U patent/CN218018001U/en active Active
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