CN220762230U - Four-point type free positioning and adjusting tool - Google Patents
Four-point type free positioning and adjusting tool Download PDFInfo
- Publication number
- CN220762230U CN220762230U CN202322619863.4U CN202322619863U CN220762230U CN 220762230 U CN220762230 U CN 220762230U CN 202322619863 U CN202322619863 U CN 202322619863U CN 220762230 U CN220762230 U CN 220762230U
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- annular sleeve
- inner bushing
- point type
- type free
- positioning
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- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a four-point type free positioning adjustment tool, which comprises an inner bushing, an annular sleeve and a positioning bolt, wherein the inner bushing is provided with a positioning hole; the whole inner bushing is of a U-shaped structure; the annular sleeve is sleeved outside the inner bushing along the axial direction of the inner bushing; the side wall of the annular sleeve is provided with a positioning bolt; the number of the positioning bolts is 4; 4 positioning bolts penetrate through the annular sleeve and then squeeze the outer surface of the inner bushing; the outer end face of the annular sleeve is provided with a central hole. The utility model provides a four-point type free positioning and adjusting tool which is simple and reliable in structure, convenient to use, few in processing procedures and reusable.
Description
Technical Field
The utility model belongs to the field of mining machinery, and relates to a four-point type free positioning and adjusting tool, in particular to a four-point type free positioning and adjusting tool with a deep hole piston rod.
Background
The hydraulic support is an important supporting device of a fully mechanized mining face, under the large background of intelligent mine construction, the hydraulic support is subjected to electrohydraulic control intelligent upgrading, displacement sensors are built in part of hydraulic jacks, so that the support moving speed is monitored, the displacement sensors are required to be installed by machining built-in deep holes on piston rods, according to the conventional excircle production process, as shown in fig. 1, process plugs 5 are required to be welded on the end faces of the piston rods, then the deep hole piston rods 6 to be machined are put on a central frame by a lathe, the excircles of the deep hole piston rods 6 to be machined are taken as references, central holes 4 are formed again, and after the excircles of the deep hole piston rods 6 to be machined are ground, the process plugs 5 are polished. The processing technology is complex, the processing technology route is long, the processing precision is poor, the efficiency is low, the technology plug cannot be reused, and the production cost is increased.
Disclosure of Invention
In order to solve the technical problems in the background art, the utility model provides the four-point type free positioning adjustment tool which is simple and reliable in structure, convenient to use, few in processing procedures and reusable.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a four-point type free positioning adjustment tool is characterized in that: the four-point type free positioning adjustment tool comprises an inner bushing, an annular sleeve and a positioning bolt; the whole inner bushing is of a U-shaped structure; the annular sleeve is sleeved outside the inner bushing along the axial direction of the inner bushing; a positioning bolt is arranged on the side wall of the annular sleeve; the number of the positioning bolts is 4; 4 positioning bolts penetrate through the annular sleeve and then squeeze the outer surface of the inner bushing; the outer end face of the annular sleeve is provided with a central hole.
The 4 positioning bolts are uniformly distributed along the circumferential direction of the annular sleeve.
The axes of the 4 positioning bolts are positioned on the same plane.
The inner wall of the inner bushing is provided with threads.
The inner liner and the annular sleeve are non-contact in the axial direction of the inner liner.
The difference between the outer diameter of the inner bushing and the inner diameter of the annular sleeve is a, and a is more than or equal to 2mm and less than or equal to 3mm.
The length of the annular sleeve is 2/3 of the length of the inner liner.
The center hole is arranged at the center of the outer end surface of the annular sleeve.
The central hole is a tapered hole.
The utility model has the beneficial effects that:
the utility model provides a four-point type free positioning adjustment tool which comprises an inner bushing, an annular sleeve and a positioning bolt; the whole inner bushing is of a U-shaped structure; the annular sleeve is sleeved outside the inner bushing along the axial direction of the inner bushing; the side wall of the annular sleeve is provided with a positioning bolt; the number of the positioning bolts is 4; 4 positioning bolts penetrate through the annular sleeve and then squeeze the outer surface of the inner bushing; the outer end face of the annular sleeve is provided with a central hole. The inner bushing is in threaded connection with the deep hole piston rod to be processed, the annular sleeve is fixed with the inner bushing through the positioning bolt, the posture of the deep hole piston rod to be processed can be adjusted at will on the machine tool, the coaxiality of the deep hole piston rod to be processed is guaranteed, and therefore production efficiency is improved. The utility model improves the processing quality, mainly shows the control of the outer circle size of the piston rod, and can ensure the coaxiality and the smoothness of the piston rod. When the cylindrical grinding processing of the piston rod is performed, the tolerance range is increased from the previous 0.08mm, the ovality is 0.03mm and the coaxiality is 0.1mm to the current controllable tolerance range of 0.04mm, the ovality is 0.012mm and the coaxiality is 0.04mm. Meanwhile, the processing procedures are reduced, the welding process plug is needed according to the traditional processing technology, the welding process plug is needed to be polished after finish grinding processing, the four-point type free positioning and adjusting tool is adopted, the cost investment is saved, the labor intensity of workers is lightened, the production progress is quickened, the tool is suitable for various piston rod finish grinding workpieces needing to be aligned, the size and the gap are adjustable and controllable, the stability is good, the processing efficiency and the workpiece quality are greatly improved, and the safety performance is good.
Drawings
Fig. 1 is a schematic view of a deep hole piston rod built in a conventional craftsman;
fig. 2 is a schematic perspective view of a four-point type free positioning adjustment tool provided by the utility model;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic cross-sectional view of FIG. 2;
FIG. 5 is a schematic view of a four-point type free positioning adjustment tool according to the present utility model;
wherein:
1-an inner liner; 2-an annular sleeve; 3-positioning bolts; 4-a central hole; 5-process plugging; 6-a deep hole piston rod to be processed.
Detailed Description
Referring to fig. 2, 3 and 4, the utility model provides a four-point type free positioning adjustment tool, which comprises an inner bushing 1, an annular sleeve 2 and a positioning bolt 3; the whole inner bushing 1 is of a U-shaped structure; the annular sleeve 2 is sleeved outside the inner bushing 1 along the axial direction of the inner bushing 1; the side wall of the annular sleeve 2 is provided with a positioning bolt 3; the number of the positioning bolts 3 is 4; 4 positioning bolts 3 penetrate through the annular sleeve 2 and then squeeze the outer surface of the inner bushing 1; the outer end face of the annular sleeve 2 is provided with a central hole 4.
The inner wall of the inner bushing 1 is provided with threads, the inner bushing is connected with a deep hole piston rod 6 to be processed through the threads, the outer circle of the inner bushing 1 is a finish turning surface, and the length of the outer circle is smaller than the threaded surface of the piston rod.
The annular sleeve 2 is similar to a four-jaw chuck body on a machine tool in structure, the inner liner 1 and the annular sleeve 2 are non-contact along the axial direction of the inner liner 1, and the inner diameter of the annular sleeve 2 is 2-3mm larger than the outer diameter of the inner liner 1 by an exemplary method, and the length of the annular sleeve 2 is 2/3 of the length of the inner liner 1. 4M 10 threaded holes are drilled on the side surface of the annular sleeve 2 at the same level, one positioning bolt 3 is arranged in each M10 threaded hole, and the 4 positioning bolts 3 are uniformly distributed along the circumferential direction of the annular sleeve 2, and especially the axes of the 4 positioning bolts 3 are positioned on the same plane. A4 central hole is pre-drilled in the end face of the annular sleeve 2. During the excircle processing of the deep hole piston rod 6 to be processed, the inner bushing 1 is assembled on the deep hole piston rod 6 to be processed, then the annular sleeve 2 and the positioning bolt 3 are assembled in sequence, the central hole 4 on the annular sleeve 2 is propped up, and the deep hole piston rod 6 to be processed is aligned on a machine tool center frame by means of the positioning bolt 3, so that the excircle processing of the deep hole piston rod 6 to be processed is completed.
Referring to fig. 5, based on the use state schematic diagram of the four-point type free positioning adjustment tool provided by the utility model, the inner bushing 1 is in threaded connection with the deep hole piston rod 6 to be processed by using the four-point type free positioning adjustment tool, the annular sleeve 2 is fixed with the inner bushing 1 by the positioning bolt 3, the posture of the deep hole piston rod 6 to be processed can be adjusted at will on a machine tool, the coaxiality of the deep hole piston rod 6 to be processed is ensured, so that the production efficiency is improved, and meanwhile, the tool can be designed in series and used repeatedly. According to the utility model, the processing technology of the piston rod of the built-in sensor is optimized, the processing precision is ensured through the tool, the production efficiency is improved, and the processing cost is reduced. By using the four-point type free positioning adjustment tool provided by the utility model, the tolerance range of the outer circle of the piston rod is increased from 0.08mm, the ellipticity is 0.03mm, the coaxiality is 0.1mm to the current controllable tolerance range of 0.04mm, the ellipticity is 0.012mm and the coaxiality is 0.04mm, the working efficiency is improved, the production cost is reduced, and the tool can be suitable for processing all piston rod accurate grinding workpieces with deep holes and outer circles needing to be aligned, and has good adaptability.
Claims (9)
1. A four-point type free positioning adjustment tool is characterized in that: the four-point type free positioning adjustment tool comprises an inner bushing (1), an annular sleeve (2) and a positioning bolt (3); the whole inner bushing (1) is of a U-shaped structure; the annular sleeve (2) is sleeved outside the inner bushing (1) along the axial direction of the inner bushing (1); a positioning bolt (3) is arranged on the side wall of the annular sleeve (2); the number of the positioning bolts (3) is 4; 4 positioning bolts (3) penetrate through the annular sleeve (2) and then squeeze the outer surface of the inner bushing (1); the outer end face of the annular sleeve (2) is provided with a central hole (4).
2. The four-point type free positioning adjustment tool according to claim 1, wherein: the 4 positioning bolts (3) are uniformly distributed along the circumferential direction of the annular sleeve (2).
3. The four-point type free positioning adjustment tool according to claim 2, wherein: the axes of the 4 positioning bolts (3) are positioned on the same plane.
4. The four-point type free positioning adjustment tool according to claim 1, 2 or 3, wherein: the inner wall of the inner bushing (1) is provided with threads.
5. The four-point type free positioning adjustment tool according to claim 4, wherein: the inner bushing (1) and the annular sleeve (2) are non-contact along the axial direction of the inner bushing (1).
6. The four-point type free positioning adjustment tool according to claim 5, wherein: the difference value between the outer diameter of the inner bushing (1) and the inner diameter of the annular sleeve (2) is a, and a is more than or equal to 2mm and less than or equal to 3mm.
7. The four-point type free positioning adjustment tool according to claim 6, wherein: the length of the annular sleeve (2) is 2/3 of the length of the inner bushing (1).
8. The four-point type free positioning adjustment tool according to claim 7, wherein: the center hole (4) is arranged at the center of the outer end surface of the annular sleeve (2).
9. The four-point type free positioning adjustment tool according to claim 8, wherein: the central hole (4) is a conical hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322619863.4U CN220762230U (en) | 2023-09-26 | 2023-09-26 | Four-point type free positioning and adjusting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322619863.4U CN220762230U (en) | 2023-09-26 | 2023-09-26 | Four-point type free positioning and adjusting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220762230U true CN220762230U (en) | 2024-04-12 |
Family
ID=90614717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322619863.4U Active CN220762230U (en) | 2023-09-26 | 2023-09-26 | Four-point type free positioning and adjusting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220762230U (en) |
-
2023
- 2023-09-26 CN CN202322619863.4U patent/CN220762230U/en active Active
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