CN215545088U - Inner hole machining tool for steel pipe - Google Patents
Inner hole machining tool for steel pipe Download PDFInfo
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- CN215545088U CN215545088U CN202121291325.1U CN202121291325U CN215545088U CN 215545088 U CN215545088 U CN 215545088U CN 202121291325 U CN202121291325 U CN 202121291325U CN 215545088 U CN215545088 U CN 215545088U
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Abstract
The utility model discloses a steel pipe inner hole machining tool, which comprises: the boring head seat is provided with a first through hole penetrating through the boring head seat in the length direction; the supporting block assembly comprises a plurality of supporting seats arranged at intervals along the circumferential direction of the boring head seat, and a first supporting block and a second supporting block which are detachably arranged in the supporting seats and protrude out of the edges of the supporting seats; the edge of the boring head assembly is flush with the edge of the support block assembly, the boring head assembly comprises two cover plates detachably connected with the boring head seat, and a deep hole boring cutter head and an adjustable floating boring cutter head which are respectively arranged on the two cover plates, at least one groove is formed in the cover plates from the edges inwards, a plurality of second through holes penetrating through the cover plates in the thickness direction are formed in the cover plates, and the second through holes are communicated with the first through holes. According to the utility model, the boring head assembly is arranged on the existing boring head seat, so that the processing capacity range of the original boring head is expanded, and rough processing and semi-finish/finish processing of one boring head seat are realized.
Description
Technical Field
The utility model relates to the technical field of metal pipe machining, in particular to a tool for machining an inner hole of a steel pipe.
Background
With the rapid development of the manufacturing industry of heavy equipment in China, various large-diameter thin-wall steel pipes manufactured by forging and pressing are more and more widely applied, the demand is continuously increased, the quality requirement and the machining difficulty of products are continuously improved, and new requirements are provided for inner hole machining tools of the steel pipes. For example, the inner diameter phi 1076mm, the outer diameter phi 1166mm, the total length nearly 9000mm and the wall thickness 45mm belong to an ultra-long large-diameter thin-wall steel pipe structure, the coaxiality and cylindricity tolerance of an inner circle and an outer circle of the steel pipe structure is 0.04mm, the end face verticality is 0.025mm, and long and deep holes are difficult to machine.
The size of the steel pipe breaks through the past manufacturing limit record, particularly the inner hole needs to be processed by a deep hole boring machine, and the aperture of the steel pipe exceeds the processing capacity of the existing deep hole boring tool bit during finish machining. Therefore, it is necessary to provide a further solution to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tool for machining an inner hole of a steel pipe, which is used for overcoming the defects in the prior art.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a steel pipe hole processing frock, includes:
the boring head seat is provided with a first through hole penetrating through the boring head seat in the length direction;
the supporting block assembly comprises a plurality of supporting seats arranged at intervals along the circumferential direction of the boring head seat, and a first supporting block and a second supporting block which are detachably arranged in the supporting seats and protrude out of the edges of the supporting seats; and the number of the first and second groups,
the edge of the boring head assembly is flush with the edge of the support block assembly, the boring head assembly comprises two cover plates detachably connected with the boring head seat, and a deep-hole boring cutter head and an adjustable floating boring cutter head which are respectively arranged on the two cover plates, at least one groove is formed in the cover plates from the edges inwards, a plurality of second through holes penetrating through the cover plates in the thickness direction are formed in the cover plates, and the second through holes are communicated with the first through holes.
In a preferred embodiment of the utility model, the supporting seats are uniformly arranged at intervals along the circumferential direction of the boring head seat.
In a preferred embodiment of the present invention, the first support block and the second support block are both long strips, and the length direction of the first support block and the length direction of the second support block are consistent with the axial direction of the boring head seat.
In a preferred embodiment of the present invention, the first support block is an alloy member, and the second support block is a wooden member.
In a preferred embodiment of the present invention, the deep-hole boring tool head includes a deep-hole boring tool seat disposed on the corresponding cover plate, and a deep-hole boring tool disposed in the deep-hole boring tool seat.
In a preferred embodiment of the utility model, the adjustable floating boring cutter head comprises an adjustable floating boring cutter seat arranged on the corresponding cover plate, and an adjustable floating boring cutter arranged in the adjustable floating boring cutter seat.
In a preferred embodiment of the utility model, the drill bit seat is detachably arranged at one end of the drill rod, the drill rod is provided with a cooling oil channel, and the cooling oil channel is communicated with the first through hole.
In a preferred embodiment of the present invention, the supporting seat is an elongated strip shape that is matched with the first supporting block and the second supporting block.
In a preferred embodiment of the utility model, the drill rod device further comprises a drill rod guide rail and a bracket arranged on the drill rod guide rail in a sliding mode, wherein the bracket is used for supporting the drill rod and driving the drill rod to move on the drill rod guide rail.
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the utility model, the cover plate is additionally arranged on the existing boring head seat, and the deep hole boring head or the adjustable floating boring head is arranged on the cover plate, so that the processing capacity range of the original boring head is expanded, the rough processing and the semi-finishing/finish processing of one boring head seat are realized, the weight of the integral boring head is reduced, the production cost is saved, and meanwhile, the large-aperture processing is realized through the cover plate and the adjustable floating boring head.
(2) The supporting block assemblies are arranged in the circumferential direction of the boring head seat, so that the inner wall of the steel pipe is supported, and the rigidity of the tool is enhanced; furthermore, the first supporting block and the second supporting block which are made of different materials are used, so that the supporting blocks which are made of different materials can be selected according to different processing technologies, and different processing requirements can be better met.
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 following description are only some embodiments described in 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 perspective view of an assembly of the present invention;
FIG. 2 is a perspective view of another assembly of the present invention;
fig. 3 is a schematic view of the usage state of the present invention.
Specifically, 10, steel pipes; 11. a guide hole; 20. a machine tool guide rail; 21. a machine tool riding wheel; 22. a deep hole boring machine chuck;
100. a boring head seat;
210. a supporting seat; 220. a first support block; 230. a second support block;
310. a cover plate; 311. a second through hole; 312. a groove; 320. a deep hole boring cutter head; 321. a deep hole boring cutter seat; 322. deep hole boring cutter; 330. an adjustable floating boring head; 331. an adjustable floating boring cutter holder; 332. an adjustable floating boring cutter;
400. a drill stem; 410. a drill rod guide rail; 420. a bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 and 2, a tool for machining an inner hole of a steel pipe 10 comprises a boring head seat 100, a support block assembly and a boring head assembly.
Specifically, the boring head 100 is provided with a first through hole penetrating a length direction thereof for passing cooling oil (to be described in detail later).
The support block assembly includes a plurality of support blocks 210, a first support block 220, and a second support block 230. The plurality of supporting seats 210 are arranged at intervals along the circumferential direction of the boring head 100, and preferably, the plurality of supporting seats 210 are arranged at even intervals along the circumferential direction of the boring head 100 to realize stable support. In this embodiment, 4 support seats 210 are uniformly arranged along the circumferential direction of the boring head 100 at intervals.
The first supporting block 220 and the second supporting block 230 are detachably disposed in the supporting seat 210 and protrude out of the edge of the supporting seat 210 to contact the inner wall of the steel pipe 10 to support the steel pipe, so that the overall rigidity of the tool is enhanced, and the boring cutter is prevented from yielding or vibrating. Specifically, the first supporting block 220 or the second supporting block 230 is adopted according to the processing technology, and the first supporting block 220 and the second supporting block 230 can be selected from different heights, different materials and the like. Preferably, the first support block 220 and the second support block 230 are both long and have a length direction that coincides with the axial direction of the boring head holder 100, so that good support is achieved in the axial direction. At this time, the supporting base 210 is an elongated strip that is matched with the first supporting block 220 and the second supporting block 230.
The edge of the boring head assembly is flush with the edge of the support block assembly so as to realize the machining operation on the inner wall of the steel pipe 10. The boring head assembly comprises two cover plates 310 detachably connected with the boring head base 100, and a deep-hole boring head 320 and an adjustable floating boring head 330 which are respectively arranged on the two cover plates 310, so that the processing capacity range of the original boring head is expanded, rough processing and semi-finish/finish processing of one boring head base 100 are realized, the weight of the integral boring head is reduced, the production cost is saved, and meanwhile, large-aperture processing is realized through the cover plates 310 and the adjustable floating boring head 330.
The cover plate 310 is provided with at least one groove 312 from the edge inwards, the cover plate 310 is provided with a plurality of second through holes 311 penetrating through the cover plate in the thickness direction, the second through holes 311 are communicated with the first through holes, so that cooling oil flows to the second through holes 311 from the first through holes and is sprayed out, cooling and lubricating effects can be achieved, chips can be timely washed out, and the washed chips are discharged outwards from the groove 312.
Fig. 1 shows a schematic view of the boring head base 100 with a deep hole boring head 320. The cover plate 310 is provided with a deep-hole boring tool seat 321, the deep-hole boring tool seat 321 is provided with a deep-hole boring tool 322, and then the cover plate 310 is detachably connected with the boring head seat 100, such as by screws, but not limited thereto. At this time, since the deep-hole boring tool 322 is generally used for rough machining of the inner hole of the steel pipe 10, in order to match the rough machining process, the first supporting block 220 is an alloy member, which may be specifically cast iron, so as to further enhance the rigidity of the tool.
Fig. 2 is a schematic diagram of the boring head holder 100 with the adjustable floating boring head 330. The cover plate 310 is provided with an adjustable floating boring tool seat 331, the adjustable floating boring tool seat 331 is provided with an adjustable floating boring tool 332, and then the cover plate 310 is detachably connected with the boring head seat 100, such as by screws, but not limited thereto. At this time, since the adjustable floating boring cutter 332 is generally used for semi-finishing and finishing of the inner hole of the steel pipe 10, in order to match the semi-finishing and finishing processes, the second supporting block 230 is made of wooden pieces, so that the cost is reduced and the semi-finishing or finishing is suitable.
The deep-hole boring head 320 and the adjustable floating boring head 330 in this embodiment can be both the existing deep-hole boring head 320 and the adjustable floating boring head 330. The deep-hole boring tool bit 320 is generally used for deep-hole machining, and the adjustable floating boring tool 332 of the adjustable floating boring tool bit 330 is longer than the deep-hole boring tool 322, so that the machining of the steel pipe 10 with a large inner diameter is facilitated. Meanwhile, the adjustable floating boring cutter 332 can freely slide in the boring cutter seat, does micro radial movement and can automatically center, so that the cutting depths of the two cutting edges are equal, the hole machining precision and the finish degree are high, the linearity is good, and the adjustable floating boring cutter is generally used for finish machining.
In this embodiment, the diameter of the cover plate 310 may be set to match the inner diameter of the steel pipe 10 to be processed, so as to implement large-aperture processing.
As shown in fig. 3, the tool may further include a drill rod 400, and drill rod 400 is used to drive bore bit carrier 100 to move axially. The bore head seat 100 is detachably disposed at one end of the drill rod 400, the drill rod 400 is provided with a cooling oil channel, and the cooling oil channel is communicated with the first through hole to convey cooling oil. The tool further comprises a drill rod guide rail 410 and a bracket 420 arranged on the drill rod guide rail 410 in a sliding mode, wherein the bracket 420 is used for supporting the drill rod 400 and driving the drill rod 400 to move on the drill rod guide rail 410.
The specific processing process is as follows:
s1, after the deep hole boring machine is arranged on the workpiece, the axis of the workpiece is consistent with the rotation center of the machine tool by taking the excircle of the workpiece as the reference and adjusting the riding wheel 21 of the machine tool, and the chuck 22 of the deep hole boring machine is arranged at one end. The deep hole boring tool bit 320 is used for rough boring, in the machining process, a workpiece rotates along with a main shaft of a machine tool, the boring head seat 100 is clamped on the drill rod 400, the drill rod 400 can move along a guide rail 20 of the machine tool under the driving of a special motor along with a drill rod 400 box, so that the deep hole boring tool 322 carries out tool feeding movement, preferably three-time tool feeding, and the deep hole boring tool is machined until the allowance of 5mm on the single side of an inner hole is obtained.
And S2, after rough boring, performing semi-finishing and finishing on the inner hole by using the adjustable floating boring cutter head 330. The adjustable floating boring cutter 332 has symmetrical two ends and opposite blade directions, the size between the two blades is the diameter of a bored hole, the adjustable floating boring cutter 332 can freely slide in the adjustable floating boring cutter holder 331 to perform micro radial movement and can automatically center, so that the two blades have equal cutting depths, and the hole has high machining precision and finish and good linearity. And before the adjustable floating boring cutter head 330 is processed, a guide hole 11 is firstly processed on one end surface of the hole, the size of the guide hole 11 is consistent with the bore diameter to be bored, the boring cutter head is positioned in the guide hole 11 by utilizing the second supporting block 230, the drill rod 400 is guaranteed to be effectively supported, the rigidity of the boring cutter is enhanced, the balance of cutting force can be kept, the inner hole formed along with the cutting processing of the boring cutter can enable the second supporting block 230 to continuously support the boring cutter head in the processing, and the stability and the centering performance of the boring cutter head are guaranteed. Similarly, the first support block 220 may be provided during rough machining. The semi-finishing single edge is about 3mm, and the finishing single edge is about 1 mm. And measuring the actual inner diameter size of the workpiece after each processing, and adjusting the distance between two cutting edges of the floating boring cutter according to the processing condition so as to accurately control the size.
The cooling oil is used for cooling in the deep hole machining process, the cooling oil is pressed in from the tail of the drill rod 400 and sprayed out from the hole in the tool bit, the cooling and lubricating effects can be achieved, and chips can be flushed out in time. And in the boring process, the inner hole machining condition is monitored in a wall thickness measuring mode of a thickness gauge, and proper adjustment is carried out.
In conclusion, the utility model expands the processing capacity range of the original boring head by additionally arranging the cover plate on the existing boring head seat and arranging the deep-hole boring head or the adjustable floating boring head on the cover plate, realizes the rough processing and the semi-finishing/finish processing of one boring head seat, reduces the weight of the integral boring head, saves the production cost and realizes the large-aperture processing through the cover plate and the adjustable floating boring head.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a steel pipe hole processing frock which characterized in that includes:
the boring head seat is provided with a first through hole penetrating through the boring head seat in the length direction;
the supporting block assembly comprises a plurality of supporting seats arranged at intervals along the circumferential direction of the boring head seat, and a first supporting block and a second supporting block which are detachably arranged in the supporting seats and protrude out of the edges of the supporting seats; and the number of the first and second groups,
the edge of the boring head assembly is flush with the edge of the support block assembly, the boring head assembly comprises two cover plates detachably connected with the boring head seat, and a deep-hole boring cutter head and an adjustable floating boring cutter head which are respectively arranged on the two cover plates, at least one groove is formed in the cover plates from the edges inwards, a plurality of second through holes penetrating through the cover plates in the thickness direction are formed in the cover plates, and the second through holes are communicated with the first through holes.
2. The tool for machining the inner hole of the steel pipe as claimed in claim 1, wherein the supporting seats are evenly arranged along the circumferential direction of the boring head seat at intervals.
3. The tool for machining the inner hole of the steel pipe according to claim 1, wherein the first support block and the second support block are both long and have the length direction consistent with the axial direction of the boring head seat.
4. The tool for machining the inner hole of the steel pipe according to claim 1, wherein the first supporting block is an alloy piece, and the second supporting block is a wooden piece.
5. The steel pipe inner hole machining tool according to claim 1, wherein the deep hole boring tool head comprises a deep hole boring tool seat arranged on the corresponding cover plate and a deep hole boring tool arranged in the deep hole boring tool seat.
6. The steel pipe inner hole machining tool according to claim 1, wherein the adjustable floating boring cutter head comprises an adjustable floating boring cutter seat arranged on the corresponding cover plate, and an adjustable floating boring cutter arranged in the adjustable floating boring cutter seat.
7. The steel pipe inner hole machining tool according to claim 1, further comprising a drill rod, wherein the bore head seat is detachably arranged at one end of the drill rod, the drill rod is provided with a cooling oil channel, and the cooling oil channel is communicated with the first through hole.
8. The tool for machining the inner hole of the steel pipe according to claim 3, wherein the supporting seat is an elongated shape matched with the first supporting block and the second supporting block.
9. The steel tube inner hole machining tool according to claim 7, further comprising a drill rod guide rail and a bracket arranged on the drill rod guide rail in a sliding mode, wherein the bracket is used for supporting the drill rod and driving the drill rod to move on the drill rod guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121291325.1U CN215545088U (en) | 2021-06-09 | 2021-06-09 | Inner hole machining tool for steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121291325.1U CN215545088U (en) | 2021-06-09 | 2021-06-09 | Inner hole machining tool for steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215545088U true CN215545088U (en) | 2022-01-18 |
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ID=79867485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121291325.1U Active CN215545088U (en) | 2021-06-09 | 2021-06-09 | Inner hole machining tool for steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215545088U (en) |
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2021
- 2021-06-09 CN CN202121291325.1U patent/CN215545088U/en active Active
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