CN217858930U - Fixture for circumferential multi-hole machining of thin-wall small revolving body part - Google Patents
Fixture for circumferential multi-hole machining of thin-wall small revolving body part Download PDFInfo
- Publication number
- CN217858930U CN217858930U CN202220902714.1U CN202220902714U CN217858930U CN 217858930 U CN217858930 U CN 217858930U CN 202220902714 U CN202220902714 U CN 202220902714U CN 217858930 U CN217858930 U CN 217858930U
- Authority
- CN
- China
- Prior art keywords
- thin
- hole
- body part
- positioning sleeve
- circumference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a porous anchor clamps for processing of thin wall small solid of revolution part circumference, including position sleeve, ejector pin, retaining ring, pressure cap nut, the position sleeve hole is the same with the small solid of revolution part external diameter size of thin wall, when the small solid of revolution part of thin wall is arranged in the position sleeve hole, the small solid of revolution part circumference of thin wall is closely wrapped up, is radially supported; the hexagonal prism surface of the positioning sleeve is provided with a plurality of guide through holes corresponding to the positions of holes to be drilled on the circumference of the part, the hole drilling cutter can quickly position and drill holes along the guide holes of the positioning sleeve, and the circumference of the thin-wall small revolving body part is radially supported without deformation; after hole making is completed, the pressing sleeve nut is dismounted, the ejector rod is pushed, and the thin-wall small revolving body part can be quickly ejected, so that quick mounting and quick dismounting are realized, and the hole making efficiency and the hole making precision of the circumference of the thin-wall small revolving body part are greatly improved.
Description
Technical Field
The utility model belongs to the frock clamp field, concretely relates to porous processing anchor clamps of little solid of revolution part circumference of thin wall.
Background
Referring to fig. 9, the conductive column sleeve is a high-precision thin-wall small revolving body part which is used in a large number in an automatic artillery gun, and is produced by tens of thousands of parts every year. Part external diameter 7.95 0 -0.015mm, the inner hole has M7 half thread tooth form structure, the wall thickness is about 0.5mm, 9 apertures are evenly distributed on the circumference of thin-walled cylinder. The traditional method for processing the thin-wall circumference multihole of the conductive column sleeve comprises the following steps: firstly, marking a porous position at a corresponding position on the circumference of the conductive column sleeve by using an indexing device and a marking ruler, punching a hole position by using a sample punching point, then, clamping a part by using a hand clamp on a drilling machine, and drilling 9 holes uniformly distributed on the circumference of the conductive column sleeve at the sample punching hole position on the circumference of the conductive column sleeve. The disadvantages of this method are: when the hand pliers are used for clamping the conductive column sleeve for drilling, the conductive column sleeve is easy to deform and lose precision due to improper control of the clamping force, and the marking and positioning multi-hole position is complex in operation and low in efficiency, so that the requirement of mass production cannot be met. In the actual production, when holes are machined on the circumferences of other thin-wall small rotary parts, the problems also exist.
Disclosure of Invention
In order to solve the problem of deformation of the thin-wall small revolving body part during circumferential hole making, the utility model provides a clamp for processing multiple holes on the circumference of a thin-wall small revolving body part, which comprises a positioning sleeve, an ejector rod, a retainer ring and a pressing sleeve nut; the inner hole of the positioning sleeve has the same size with the outer diameter of the thin-wall small revolving body part, when the thin-wall small revolving body part is arranged in the positioning sleeve, the circumference of the thin-wall small revolving body part is tightly wrapped and radially supported, and the thin wall of the part can be prevented from being stressed and deformed during hole making; the hexagonal prism surface of the positioning sleeve is provided with a guide through hole which corresponds to the position of a hole to be drilled and can guide a cutter to quickly and accurately position the hole to be drilled; after the hole is formed, the nut is dismounted, the ejector rod is pushed to quickly eject the thin-wall small revolving body part, and the operation is simple and quick, and the efficiency is high.
The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a thin-wall small revolving body part circumference multi-hole processing clamp, which comprises a positioning sleeve 2, a retainer ring 4 and a pressing sleeve nut 5;
the positioning sleeve 2 is provided with a step through hole along the axis, the side wall of one end of the positioning sleeve is provided with a radial through hole, and the layout of the radial through hole is the same as that of the hole to be machined on the side wall of the thin-wall small revolving body part to be machined, so that the positioning sleeve is used for guiding a hole-making cutter to quickly and accurately position and make a hole;
the thin-wall small revolving body part to be processed is positioned in the step through hole of the positioning sleeve 2 and is in clearance fit with the step through hole; the retainer ring 4 is coaxially positioned in the step through hole of the positioning sleeve 2 and is in clearance fit with the step through hole; one end of the retainer ring 4 is contacted with the end face of the thin-wall small revolving body part to be processed, and the other end is contacted with the inner end face of the pressing sleeve nut 5; the pressing sleeve nut 5 is fixedly connected with the other end of the positioning sleeve 2.
Preferably, one end of the positioning sleeve 2 is hexagonal prism-shaped, and a plurality of radial through holes are formed in a prism surface; the outer wall of the other end of the positioning sleeve 2 is provided with threads.
Preferably, the positioning sleeve 2 is provided with a groove on a prismatic surface which is not provided with a radial through hole, so that the clamp supporting surface is stable and reliable when the hole is manufactured.
Preferably, the material of the locating sleeve 2 is T10A, the integral quenching hardness is HRC 58-65, and the radial through hole is made to be wear-resistant.
Preferably, the device further comprises an ejector rod 1, wherein the ejector rod 1 axially penetrates through the positioning sleeve 2, one end of the ejector rod is in contact with the thin-wall small revolving body part to be machined, and the other end of the ejector rod is used as a handle to push the thin-wall small revolving body part to be machined to slide along the stepped through hole of the positioning sleeve.
Preferably, the ejector rod 1 is in a concentric two-step shaft shape, the length of the small end of the ejector rod is 15-25 mm larger than that of the step through hole of the positioning sleeve 2, and the ejector rod 1 is guaranteed to move in the positioning sleeve for a long enough stroke to eject the thin-wall small revolving body part to be processed and cannot fall out of the positioning sleeve.
Preferably, the quenching hardness of the mandril 1 is HRC 45-50.
Preferably, the large hole of the positioning sleeve step hole is in clearance fit with the outer circumference of the thin-wall small revolving body part to be processed by adopting F7/h 7.
Preferably, the pressing sleeve nut 5 is coupled with the positioning sleeve 2 in a coarse thread form.
Advantageous effects
The beneficial effects of the utility model reside in that:
the utility model relates to a thin-wall small revolving body part circumference multi-hole processing clamp, which comprises a mandril, a positioning sleeve, a retainer ring and a pressing sleeve nut;
1. the outer diameter of the inner hole of the positioning sleeve is the same as that of the thin-wall small revolving body part, and when the thin-wall small revolving body part is placed in the inner hole of the positioning sleeve, the thin-wall small revolving body part can be tightly wrapped and radially supported, so that the thin-wall stress deformation during hole making is avoided;
2. the hexagonal prism surface of the positioning sleeve is provided with a plurality of guide through holes which correspond to the positions of the small holes on the circumference of the thin-wall small revolving body part and can guide a hole-making cutter to quickly and accurately position and make holes;
3. the positioning sleeve has high heat treatment hardness and abrasion resistance, and can guide a cutter to repeatedly drill holes for more than 50000 times;
4. the ejector rod is of a step long shaft structure, and can slide in the positioning sleeve to quickly eject the thin-wall small revolving body part, so that the quick-release function of the clamp is realized;
5. in the embodiment, in the process of processing the small circumferential holes of the conductive column sleeve, the fixture is adopted to greatly improve the efficiency of making the thin-wall circumferential holes of the conductive column sleeve and the accuracy of the made holes, and the processing efficiency is improved to 300/1 working day from the original 40/1 working day;
6. the size of the positioning sleeve and the length of the retainer ring are adjusted, and the processing of the plurality of holes on the circumference of the thin-wall small revolving body parts with different sizes and specifications can be met.
Drawings
Fig. 1 is a perspective view of the fixture for processing multiple holes on the circumference of the thin-wall small revolving body part of the utility model.
Fig. 2 is a half-section perspective view of the fixture for processing the plurality of holes on the circumference of the thin-wall small revolving body part.
Fig. 3 is a schematic view of a half-section structure of the fixture for processing multiple holes on the circumference of the thin-wall small revolving body part.
Fig. 4 is a right side view of fig. 3.
Fig. 5 is a schematic view of the structure of the positioning sleeve.
Fig. 6 is a schematic view of the ejector pin structure.
Fig. 7 is a schematic view of a retainer ring structure.
Fig. 8 is a schematic view of a compression sleeve nut structure.
Fig. 9 is a schematic diagram of a conductive pillar sleeve structure.
In the figure, 1-ejector pin, 2-positioning sleeve, 3-conductive column sleeve, 4-check ring and 5-pressing sleeve nut.
Detailed Description
The following explains the present invention by taking the thin-wall solid of revolution part-conductive column sleeve circumference 9 holes processing as an example.
Refer to fig. 1 to 9. The utility model relates to a thin-wall small revolving body part circumference multi-hole processing clamp, which comprises an ejector rod 1, a positioning sleeve 2, a retainer ring 4 and a pressing sleeve nut 5; the positioning sleeve 2 is a hexagonal prism and stud combined structure, and a pressing sleeve nut 5 is mounted at the end of a stud; the inner cavity of the conductive column sleeve is provided with a concentric step hole, and the large hole is tightly attached to the outer circumference of the conductive column sleeve 3 to provide circumferential radial support for the conductive column sleeve; a plurality of guide through holes are formed in the prismatic surface of the hexagonal prism and correspond to the positions of the small holes on the circumference of the conductive column sleeve 3; the ejector rod 1 is positioned in the positioning sleeve 2, can freely slide along a central hole of the positioning sleeve 2, and the large end of the ejector rod is in contact with one end of the conductive column sleeve 3 and is used for ejecting the conductive column sleeve 3; the retainer ring 4 is positioned in the central hole of the positioning sleeve 2, one end of the retainer ring is contacted with the other end of the conductive column sleeve 3 and is used for transmitting pressing force, so that the pressing sleeve nut 5 can press the conductive column sleeve 3, and the axial position of the conductive column sleeve 3 is fixed.
When the quick-release device is used, the ejector rod 1, the conductive column sleeve 3 and the check ring 4 are sequentially arranged in an inner cavity of the positioning sleeve 2 from one end of the positioning sleeve 2, the small end of the ejector rod 1 extends out of a small hole in the other end of the positioning sleeve 2, the pressing sleeve nut 5 is screwed on a stud of the positioning sleeve 2, the conductive column sleeve 3 is fixed in the positioning sleeve 2, at the moment, a hole making cutter can quickly position a hole along a guide hole in a hexagonal prism of the positioning sleeve 2, the periphery of the conductive column sleeve 3 is radially supported and cannot deform, the nut 5 is dismounted after hole making is completed, the ejector rod 1 is pushed to quickly eject the conductive column sleeve 3, and the quick-release function is realized.
Referring to fig. 5; one end of the positioning sleeve 2 is hexagonal prism-shaped, and the other end of the positioning sleeve is a stud; a second-step hole is formed in the middle of the conductive column sleeve along the axis, and a large hole of the second-step hole is in clearance fit with the outer circumference of the conductive column sleeve 3 by adopting an F7/h7 gap, so that reliable radial support is provided for the circumference of the conductive column 2; a plurality of guide through holes are formed in the outer prism surface of the hexagonal prism, the through holes correspond to the positions of the small holes to be machined in the circumference of the conductive column sleeve 3, and a hole-making cutter can be guided to quickly and accurately position during hole making; three surfaces of the hexagonal prism surface of the positioning sleeve 2 without the guide holes are provided with groove structures, so that the supporting surface of the clamp is more stable and reliable during hole making; the screw column end of the positioning sleeve 2 is connected with the pressing sleeve nut 5 in a coarse thread form; the locating sleeve 2 is made of T10A, the integral quenching hardness is HRC 58-65, so that the guide hole is wear-resistant, and the cutter can be guided to repeatedly make holes for more than 50000 times.
Referring to fig. 6; the ejector rod 1 is in a concentric two-step shaft shape, the length of the small end of the ejector rod 1 is 15-25 mm larger than that of the step hole of the positioning sleeve 2, and the ejector rod 1 can move in the positioning sleeve 2 for a long enough stroke to eject the conductive column sleeve 3 without falling off the positioning sleeve 2; the large end of the ejector rod 1 is matched with the large hole of the stepped hole of the positioning sleeve 2 in an H7/f7 clearance fit mode, and the small end cylindrical surface of the ejector rod 1 is matched with the small hole of the stepped hole of the positioning sleeve 2 in an H8/e8 clearance fit mode; the quenching hardness of the ejector rod 1 is HRC 45-50, and the abrasion resistance is ensured.
Referring to fig. 7; the retainer ring 4 is of a hollow cylindrical structure and is used for transmitting pressing force; one end of the conductive column sleeve is attached to the other end of the conductive column sleeve 3 to be processed, and the other end of the conductive column sleeve is attached to the inner end face of the compression nut 5; the cylindrical surface of the retainer ring 4 is in H8/d8 clearance fit with the step large hole of the positioning sleeve 2; the pressing sleeve nut 5 can be pressed against the conductive column sleeve 3 through the retainer ring 4, so that the axial position of the conductive column sleeve 3 is fixed.
Referring to fig. 8; the pressing sleeve nut 5 is connected with the screw column end of the positioning sleeve 2 in a coarse thread form; two planes are symmetrically arranged on the outer circumference of the pressing sleeve nut 5, and the distance between the two planes conforms to the size specification of the universal wrench.
When the quick-release device is used, the ejector rod 1, the conductive column sleeve 3 and the check ring 4 are sequentially arranged in an inner cavity of the positioning sleeve 2 from one end of the positioning sleeve 2, the small end of the ejector rod 1 extends out of a small hole in the other end of the positioning sleeve 2, the pressing sleeve nut 5 is screwed on a stud of the positioning sleeve 2, the conductive column sleeve 3 is fixed in the positioning sleeve 2, at the moment, a hole making cutter can quickly position a hole along a guide hole in a hexagonal prism of the positioning sleeve 2, the periphery of the conductive column sleeve 3 is radially supported and cannot deform, the nut 5 is dismounted after hole making is completed, the ejector rod 1 is pushed to quickly eject the conductive column sleeve 3, and the quick-release function is realized.
Production verification of more than 30000 conductive column sleeve parts shows that when the clamp is used for manufacturing 9 holes in the circumference of a conductive column sleeve, deformation of the thin-wall circumference can be avoided, quick and accurate positioning is realized, the parts are simple and convenient to assemble and disassemble, quick assembly and disassembly are realized, and the circumferential hole manufacturing efficiency of the conductive column sleeve and the hole manufacturing position accuracy are greatly improved.
The machining of the thin-wall circumference multi-hole of the conductive column sleeve with different sizes and specifications can be met by adjusting the size of the positioning sleeve and the length of the retainer ring, and the machining method can also be suitable for machining the circumference multi-hole of other thin-wall small revolving body parts.
Claims (9)
1. The utility model provides a porous anchor clamps for processing of small solid of revolution part circumference of thin wall which characterized in that: comprises a positioning sleeve (2), a retainer ring (4) and a pressing sleeve nut (5);
the positioning sleeve (2) is provided with a step through hole along the axis, the side wall of one end of the positioning sleeve is provided with a radial through hole, and the layout of the radial through hole is the same as that of the hole to be machined on the side wall of the thin-wall small revolving body part to be machined, so that a hole-making cutter can be guided to quickly and accurately position and make a hole;
the thin-wall small revolving body part to be processed is positioned in the step through hole of the positioning sleeve (2) and is in clearance fit with the step through hole; the retainer ring (4) is coaxially positioned in the step through hole of the positioning sleeve (2) and is in clearance fit with the step through hole; one end of the retainer ring (4) is contacted with the end face of the thin-wall small revolving body part to be processed, and the other end is contacted with the inner end face of the pressing sleeve nut (5); the pressing sleeve nut (5) is fixedly connected with the other end of the positioning sleeve (2).
2. The fixture for machining the multiple holes in the circumference of the thin-wall small revolving body part according to claim 1, wherein: one end of the positioning sleeve (2) is hexagonal prism-shaped, and a plurality of radial through holes are formed in the prism surface; the outer wall of the other end of the positioning sleeve (2) is provided with a thread.
3. The jig for machining the multiple holes in the circumference of the thin-walled small-revolved body part of claim 2, characterized in that: the positioning sleeve (2) is provided with a groove on the prismatic surface which is not provided with the radial through hole, so that the clamp supporting surface is stable and reliable when the hole is manufactured.
4. The fixture for machining the multiple holes in the circumference of the thin-wall small-revolving-body part according to claim 3, wherein: the positioning sleeve (2) is made of T10A, the integral quenching hardness is HRC 58-65, and the radial through hole is wear-resistant.
5. The fixture for machining the multiple holes in the circumference of the thin-wall small revolving body part according to claim 1, wherein: the thin-wall small revolving body part machining device is characterized by further comprising an ejector rod (1), wherein the ejector rod (1) axially penetrates through the positioning sleeve (2), one end of the ejector rod is in contact with the thin-wall small revolving body part to be machined, and the other end of the ejector rod serves as a handle to push the thin-wall small revolving body part to be machined to slide along a step through hole of the positioning sleeve.
6. The fixture for machining the multiple holes in the circumference of the thin-wall small-revolving-body part according to claim 5, wherein: the ejector rod (1) is in a concentric two-step shaft shape, the length of the small end of the ejector rod is 15-25 mm larger than that of the step through hole of the positioning sleeve (2), and the ejector rod (1) is guaranteed to move in the positioning sleeve for a long enough stroke to eject the thin-wall small revolving body part to be processed and cannot fall off the positioning sleeve.
7. The fixture for machining the multiple holes in the circumference of the thin-wall small-revolving-body part according to claim 6, wherein: the quenching hardness of the ejector rod (1) is HRC 45-50.
8. The fixture for machining the multiple holes in the circumference of the thin-wall small-revolving-body part according to claim 1, characterized in that: and the large hole of the stepped hole of the positioning sleeve is in clearance fit with the outer circumference of the thin-wall small revolving body part to be processed by adopting F7/h 7.
9. The fixture for machining the multiple holes in the circumference of the thin-wall small revolving body part according to claim 1, wherein: the pressing sleeve nut (5) is connected with the positioning sleeve (2) in a coarse thread mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220902714.1U CN217858930U (en) | 2022-04-19 | 2022-04-19 | Fixture for circumferential multi-hole machining of thin-wall small revolving body part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220902714.1U CN217858930U (en) | 2022-04-19 | 2022-04-19 | Fixture for circumferential multi-hole machining of thin-wall small revolving body part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217858930U true CN217858930U (en) | 2022-11-22 |
Family
ID=84088472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220902714.1U Active CN217858930U (en) | 2022-04-19 | 2022-04-19 | Fixture for circumferential multi-hole machining of thin-wall small revolving body part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217858930U (en) |
-
2022
- 2022-04-19 CN CN202220902714.1U patent/CN217858930U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202804227U (en) | Elastic mandrel positioning fixture of turning thin-walled part | |
| CN201807928U (en) | Finish machining fixture for thin-wall parts | |
| CN104858463A (en) | Manual self-centering clamp for thin-walled part | |
| CN108161094B (en) | Auxiliary positioning device and hole milling method for wing body butt joint spiral hole milling | |
| CN202726584U (en) | Lathe fixture | |
| CN217858930U (en) | Fixture for circumferential multi-hole machining of thin-wall small revolving body part | |
| CN108436123B (en) | Anchor clamps suitable for quick clamping of thin wall part | |
| CN110625407B (en) | Automatic centering clamping device for hollow rotating member | |
| CN212496652U (en) | Precision internal support chuck | |
| CN202088012U (en) | Mechanical clamping spring collet for holes | |
| CN215788427U (en) | Direct-push locking type zero point positioning mechanism | |
| CN212095298U (en) | Clamp for processing shaft sleeve with external thread surface | |
| CN201711553U (en) | Micro-adjustable borer | |
| CN212398903U (en) | High-precision gapless disc-shaped disc positioning tool | |
| CN219616754U (en) | Thin-wall hollow cylinder surface drilling device | |
| CN108381210B (en) | Eight-wing aluminum profile tail circumference drilling device and drilling method thereof | |
| CN114453500B (en) | Stamping upper die and stamping device | |
| CN110640521B (en) | Automatic clamp for external holding positioning of thin-wall sleeve and end face compression | |
| CN219747545U (en) | Single taper shaft processing tool | |
| CN211249268U (en) | Automatic clamp for positioning and pressing end face of thin-wall sleeve in outer surrounding mode | |
| CN201493699U (en) | Machining centering device | |
| CN108237408B (en) | Rotary machining center fixture | |
| CN114570844A (en) | Ring seat is towards frock clamp for recess | |
| CN112743352B (en) | Processing system and method for combined processing of parallel reed component mounting surface | |
| CN112894040B (en) | Annular profile air film hole machining method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |