CN217990981U - Device for boring coaxial holes of pipe barrel - Google Patents
Device for boring coaxial holes of pipe barrel Download PDFInfo
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- CN217990981U CN217990981U CN202221560818.5U CN202221560818U CN217990981U CN 217990981 U CN217990981 U CN 217990981U CN 202221560818 U CN202221560818 U CN 202221560818U CN 217990981 U CN217990981 U CN 217990981U
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- tensioning sleeve
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Abstract
The utility model provides a device that is used for coaxial hole boring of tubular shell body, including the boring bar, the left end hole of tubular shell body is passed to the left end of boring bar, radially is provided with hole boring cutter on the boring bar of left end hole, and the right-hand member of boring bar is the location end, and the right-hand member inner circle of tubular shell body is arranged in to the location end, and the outside cover of location end is equipped with and rises and tightly overlap the inner circle, and the outside cover that rises and tightly overlap the inner circle is equipped with and rises and tightly overlap the outer lane, rises and tightly overlap the inner circle and link to each other through axial screw with rising, rises and tightly overlaps the inner circle and makes and rise and tightly overlap the outer lane and expand to closely laminate to the lateral wall with the right-hand member hole. The utility model discloses the boring processing with the axle hole of the great pipe barrel of mainly used diameter guarantees the requirement with the axle hole processing axiality, avoids phenomenons such as boring bar dead weight flagging, "cutter relieving".
Description
Technical Field
The utility model relates to a with shaft hole processing technology field, especially indicate a device that is used for the boring of the coaxial hole of pipe barrel.
Background
The processing of the coaxial flange hole of the tube cylinder body has higher requirement on the coaxiality and is a difficult point of processing, and the common processing method is respectively boring the holes at two ends, and specifically comprises the following steps: the center of the hole is aligned by the excircle of the flange, the end face of the flange is aligned to ensure verticality, a hole at one end is bored, then the tube body is clamped for the second time, the center of the hole at the other end is aligned by the machined hole, and a coaxial hole is bored. However, the diameter of the tube body is large, the boring bar is long, the phenomenon of cutter back-off caused by dead weight droop of the boring bar and cutting force exists, and the coaxiality is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for with shaft hole boring, the great tube barrel of mainly used diameter is with the boring processing in shaft hole, guarantees with the requirement of shaft hole processing axiality, avoids phenomena such as boring bar dead weight flagging, "cutter relieving".
The technical scheme of the utility model is realized like this: the device for boring the coaxial hole of the pipe barrel comprises a boring rod, wherein the left end of the boring rod penetrates through a left end inner hole of the pipe barrel, an inner hole boring cutter is arranged on the boring rod of the left end inner hole in the radial direction, the right end of the boring rod is a positioning end, the positioning end is arranged in a right end inner hole of the pipe barrel, a tensioning sleeve inner ring is sleeved outside the positioning end, a tensioning sleeve outer ring is sleeved outside the tensioning sleeve inner ring, the tensioning sleeve inner ring and the tensioning sleeve outer ring are connected through an axial screw, and the tensioning sleeve inner ring enables the tensioning sleeve outer ring to expand to be tightly attached to the side wall of the right end inner hole.
Furthermore, the outer circular surface of the inner ring of the tensioning sleeve is a conical surface, the inner hole of the outer ring of the tensioning sleeve is a conical hole matched with the conical surface, and open grooves are formed in the two ends of the outer ring of the tensioning sleeve along the circumferential direction.
Furthermore, a right limiting ring is arranged on the outer side of the right end of the tensioning sleeve inner ring, and the outer diameter of the right limiting ring is larger than the inner diameter of the right end of the tensioning sleeve outer ring.
And axial countersunk holes are uniformly distributed on the inner ring of the tensioning sleeve along the circumferential direction, and are arranged in one-to-one correspondence with the axial screws.
Furthermore, a left limiting ring is arranged on the inner side of the left end of the outer ring of the tensioning sleeve, the inner diameter of the left limiting ring is smaller than the outer diameter of the left end of the inner ring of the tensioning sleeve, and axial screw holes which correspond to the axial counter bores one to one are formed in the left limiting ring.
Furthermore, a radial through hole is formed in the position, corresponding to the inner hole boring cutter, on the side wall of the boring bar, and a cutter bar of the inner hole boring cutter is arranged in the radial through hole and fixed through a locking screw.
The utility model has the advantages that:
the utility model effectively avoids the phenomena of dead weight droop, cutter relieving and the like of the boring bar through the support of two ends of the boring bar, and effectively improves the processing precision of the coaxial hole; the periphery of the outer ring of the tensioning sleeve is provided with a groove, an inner hole is a conical hole, the outer circle of the inner ring of the tensioning sleeve is also a conical surface, the axial screw is gradually screwed, under the action of the conical surface, the outer circle of the outer ring of the tensioning sleeve expands and is tightly attached to the machined right-end inner hole surface, and the coaxial hole reference is consistent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a boring bar;
FIG. 3 is a schematic structural view of an inner bore boring cutter;
FIG. 4 is a schematic structural view of an inner ring of the tensioning sleeve;
fig. 5 is a schematic structural diagram of the tension sleeve outer ring.
The device comprises a boring rod 1, a left-end inner hole 2, an inner hole boring cutter 3, a locking screw 4, a right-end inner hole 5, a tensioning sleeve inner ring 6, a tensioning sleeve outer ring 7, an axial screw 8, a tube barrel 9, a right limiting ring 10, an open slot 11, an axial countersunk hole 12, a left limiting ring 13 and an axial screw hole 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-3, a device for boring a coaxial hole of a tube barrel comprises a boring bar 1, wherein the left end of the boring bar 1 penetrates through a left end inner hole 2 of a tube barrel 9, an inner hole boring cutter 3 is arranged on the boring bar 1 of the left end inner hole 2 along the radial direction, a radial through hole is arranged on the side wall of the boring bar 1 corresponding to the inner hole boring cutter 3, a cutter bar of the inner hole boring cutter 3 is arranged in the radial through hole and fixed by a locking screw 4, and when the cutting amount of the inner hole boring cutter 3 needs to be adjusted, the locking screw 4 is unscrewed, and the length of the inner hole boring cutter 3 extending out of the radial through hole is adjusted.
The right end of the boring rod 1 is a positioning end, the positioning end is arranged in a right-end inner hole 5 of the tube barrel 9, a tensioning sleeve inner ring 6 is sleeved outside the positioning end, a tensioning sleeve outer ring 7 is sleeved outside the tensioning sleeve inner ring 6, and the outer circular surface of the right end of the boring rod 1 and the inner hole of the tensioning sleeve inner ring 6 are formed by matched grinding. The tensioning sleeve inner ring 6 and the tensioning sleeve outer ring 7 are connected through the axial screw 8, in the process of screwing the axial screw 8, the tensioning sleeve outer ring 7 is pulled to axially move along the tensioning sleeve inner ring 6, and the tensioning sleeve inner ring 6 enables the tensioning sleeve outer ring 7 to expand to be tightly attached to the side wall of the right-end inner hole 5.
The use method of the device for boring the coaxial hole of the tube cylinder body 9 comprises the following steps:
(1) Mounting the tube barrel 9 on a boring machine workbench, firstly aligning the center line of an inner hole by using the excircle of a right end face flange, aligning the end face of the flange by using a dial indicator, ensuring the verticality requirement, and boring the right end inner hole 5 to meet the drawing requirement;
(2) Then turning over the tube barrel 9 to enable the inner hole 2 at the left end to be close to a boring machine spindle, fixing the dial indicator at the right end of the boring rod 1, taking the inner hole 5 at the right end after boring as a reference alignment center, then penetrating through the right end of the boring rod 1, and sequentially installing the tensioning sleeve outer ring 7, the tensioning sleeve inner ring 6 and the axial screw 8, wherein the tensioning sleeve inner ring 6 enables the tensioning sleeve outer ring 7 to expand to be tightly attached to the side wall of the inner hole 5 at the right end, so that the coaxial hole reference is consistent;
(3) The left end of the boring rod 1 is provided with an NT50 cutter handle, the NT50 cutter handle is connected with a boring machine spindle to provide boring power, the locking screw 4 is unscrewed, the inner hole boring cutter 3 is adjusted to a reasonable cutting machining amount, rough boring is firstly carried out, the size is measured by an inner diameter dial gauge, the extension length of the inner hole boring cutter 3 is accurately adjusted, the locking screw 4 is fastened, and the finish boring of the inner hole 2 at the left end meets the drawing requirements.
Example 2
This embodiment is substantially the same as embodiment 1 except that: as shown in fig. 1, 4 and 5, the outer circular surface of the inner ring 6 of the tension sleeve is a conical surface, a right limit ring 10 is arranged on the outer side of the right end of the inner ring 6 of the tension sleeve, the right limit ring 10 and the inner ring 6 of the tension sleeve are of an integrated structure, the outer diameter of the right limit ring 10 is larger than the inner diameter of the right end of the outer ring 7 of the tension sleeve, the inner hole of the outer ring 7 of the tension sleeve is a conical hole matched with the conical surface, and open slots 11 are formed in both ends of the outer ring 7 of the tension sleeve along the circumferential direction.
The left limiting ring 13 is provided with axial screw holes 14 which correspond to the axial countersunk holes 12 one to one, the axial screws 8 penetrate through the axial countersunk holes 12 and are in threaded connection with the axial screw holes 14, when the axial screws 8 are screwed down, the conical hole of the outer ring 7 of the tensioning sleeve is driven to move towards the conical surface of the inner ring 6 of the tensioning sleeve, open grooves 11 are formed in the two ends of the outer ring 7 of the tensioning sleeve along the circumferential direction, under the effect of the conical surface, the outer circle of the outer ring 7 of the tensioning sleeve expands and is tightly attached to the surface of the inner hole 5 of the right end which is machined, and the same coaxial hole reference is achieved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a device that is used for coaxial hole boring of tubular column body, includes the boring bar, its characterized in that: the left end of the boring rod penetrates through the left end inner hole of the pipe barrel body, an inner hole boring cutter is radially arranged on the boring rod of the left end inner hole, the right end of the boring rod is a positioning end, the positioning end is arranged in the right end inner hole of the pipe barrel body, a tensioning sleeve inner ring is sleeved outside the positioning end, a tensioning sleeve outer ring is sleeved outside the tensioning sleeve inner ring, the tensioning sleeve inner ring and the tensioning sleeve outer ring are connected through an axial screw, and the tensioning sleeve inner ring enables the tensioning sleeve outer ring to expand to be tightly attached to the side wall of the right end inner hole.
2. An apparatus for boring a coaxial bore in a tube cylinder according to claim 1, wherein: the outer circular surface of the inner ring of the tensioning sleeve is a conical surface, the inner hole of the outer ring of the tensioning sleeve is a conical hole matched with the conical surface, and open grooves are formed in the two ends of the outer ring of the tensioning sleeve along the circumferential direction.
3. A device for coaxial bore boring of a tubular body according to claim 1 or 2, characterized in that: and a right limiting ring is arranged on the outer side of the right end of the inner ring of the tensioning sleeve, and the outer diameter of the right limiting ring is larger than the inner diameter of the right end of the outer ring of the tensioning sleeve.
4. A device for coaxial bore boring of a tube cylinder according to claim 3, characterized in that: axial countersunk holes are uniformly distributed on the inner ring of the tensioning sleeve along the circumferential direction, and the axial countersunk holes are arranged in one-to-one correspondence with the axial screws.
5. An apparatus for coaxial bore boring of a tube cylinder according to claim 4 wherein: the inner side of the left end of the outer ring of the tensioning sleeve is provided with a left limiting ring, the inner diameter of the left limiting ring is smaller than the outer diameter of the left end of the inner ring of the tensioning sleeve, and the left limiting ring is provided with axial screw holes which correspond to the axial countersunk holes one to one.
6. An apparatus for coaxial bore boring of a tube cylinder according to claim 1 wherein: the position of the cutting end corresponding to the inner hole boring cutter is provided with a radial through hole, and a cutter handle of the inner hole boring cutter is arranged in the radial through hole and is fixed through a locking screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221560818.5U CN217990981U (en) | 2022-06-21 | 2022-06-21 | Device for boring coaxial holes of pipe barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221560818.5U CN217990981U (en) | 2022-06-21 | 2022-06-21 | Device for boring coaxial holes of pipe barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217990981U true CN217990981U (en) | 2022-12-09 |
Family
ID=84295028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221560818.5U Active CN217990981U (en) | 2022-06-21 | 2022-06-21 | Device for boring coaxial holes of pipe barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217990981U (en) |
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2022
- 2022-06-21 CN CN202221560818.5U patent/CN217990981U/en active Active
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