CN202479530U - Floating boring head for processing internal surface of swan-neck pipe billet - Google Patents
Floating boring head for processing internal surface of swan-neck pipe billet Download PDFInfo
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- CN202479530U CN202479530U CN2012200809027U CN201220080902U CN202479530U CN 202479530 U CN202479530 U CN 202479530U CN 2012200809027 U CN2012200809027 U CN 2012200809027U CN 201220080902 U CN201220080902 U CN 201220080902U CN 202479530 U CN202479530 U CN 202479530U
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Abstract
The utility model discloses a floating boring head for processing the internal surface of swan-neck pipe billets. One end of a boring rod connector is connected with a boring rod, the other end of the boring rod connector and a universal connecting block are in flexible connection, and the other end of the universal connecting block is connected with a support shaft. A guide die is installed on the support shaft through bearings. A boring cutter mechanism comprises a cutting disk and boring cutters, wherein the other end of the supporting shaft is fixedly connected with the cutting disk. Based on a central line of the cutting disk, the two boring cutters are symmetrically arranged on the cutting disk. The floating boring head for processing the internal surface of a swan-neck pipe billet can self-adapt to flexibility of the pipe billets effectively because the other end of the boring rod connector and the universal connecting block are in flexible connection, the guide die can move upwards and downwards, and move towards left and right, and the guide die can well transmit the flexibility of the pipe billets to the boring cutters due to the fact that the guide die and the boring cutters are in rigid connection. The floating boring head for processing internal surface of swan-neck pipe billet has the advantages that uniform wall thickness of the pipe billets after processing is guaranteed, high processing efficiency, wide processing range and low transformation investment of equipment are achieved, and processing property of an original boring mill is not influenced after transformation.
Description
Technical field
The utility model belongs to the machined field, particularly relates to a kind of unsteady boring head that is used to process crooked internal surface of bloom.
Background technology
When the pipe of centrifugal casting was heat-treated before machined; Because technology and objective factor influence; Pipe all has bending in various degree, has caused very big difficulty to machining processes, and the pipe evenness of wall thickness after the pipe machined is for later process---and the hot rolling influence is very big; Therefore, the centrifugal casting+hot rolling that is processed in that how to solve crooked pipe is produced in the seamless steel pipe technology very crucial.
Traditional approach is to utilize deep hole boring machine that elongated pipe endoporus is processed, and in the machining industry widespread usage, its boring head and boring bar are rigidly connected, and in process, boring head guides boring by fairlead, and machining accuracy is high; But for crooked pipe, adopt common deep hole boring machine to add man-hour, because the boring system rigidity is good; Boring head is by linear interpolation in the process; The flexibility of pipe is forced correction, will inevitably cause pipe inwall processing capacity different, can not guarantee the evenness of wall thickness of pipe.
The general processing mode of inwall processing of crooked pipe has: float grinding machine and interior ball blast, interior sandblast.The pipe flexibility that the grinding machine that floats is processed can not be too big, and working (machining) efficiency is low, but its machined surface quality; Interior ball blast high efficiency, and high to pipe flexibility tolerance, but big for bore less than the pipe intractability of 300mm; Interior sandblast can be handled small-bore crooked internal surface of bloom, but the low and poor processing effect of this method efficient.
Also have special to crooked pipe processing; The PWTN of the deep hole boring machine piece-holder mode of unifying is transformed and realized; Investment for trnasforming urban land is big, the narrow shortcomings such as (only can process crooked pipe) of the special boring mill range of work but this mode exists, and therefore, the bulking property price ratio is lower.
In sum, above-mentioned several kinds of processing modes all can not solve the machined problem of crooked pipe effectively.
The utility model content
The technical problem that the utility model will solve provide a kind of simple in structure, investment for trnasforming urban land is little, working (machining) efficiency is high, the range of work is wide, the unsteady boring head of the crooked internal surface of bloom of pipe wall thickness uniform processing.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of unsteady boring head of processing crooked internal surface of bloom; Comprise boring bar, boring cutter mechanism, boring bar connector, universal contiguous block, guiding mould, back shaft; One end of boring bar connector is connected with boring bar, and the other end of boring bar connector and universal contiguous block flexibly connect, and the other end of universal contiguous block is connected with back shaft; The guiding mould is installed on the back shaft through bearing; Boring cutter mechanism comprises cutterhead, boring cutter, and the other end of back shaft is fixedly connected cutterhead, fixes two boring cutters with the center line symmetry on the cutterhead.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model; The other end of wherein said boring bar connector is offered spherical groove; One end of universal contiguous block is provided with ball bumps, and the radian of ball bumps and spherical groove is all greater than 180 °, and the radian of ball bumps is less than the radian of spherical groove; Ball bumps embeds in the spherical groove, and ball bumps can freely be rotated in spherical groove.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model, the evenly fixing some groups of support guide keys of the lateral surface of wherein said guiding mould.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model, two groups of positioning keys of the rear portion symmetric arrangement of wherein said cutterhead, the external diameter at positioning key place equates that with the internal diameter of processing back pipe the position of positioning key setting becomes 90 ° with boring cutter on the cutterhead.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model, wherein said cutterhead front end is provided with two grooves, fixing knife rest in each groove, boring cutter is fixed on the knife rest through screw.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model; One end of wherein said back shaft is provided with projection; Projection embeds in the groove of the universal contiguous block other end, and projection is blocked in groove arranged outside convex edge, and fixes at the arranged outside cutting ferrule of universal contiguous block.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model, wherein said support guide key material is a high-temperature wearable rubber, and has elasticity.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model, the lateral surface of wherein said guiding mould is offered annular groove, and the support guide key has four groups, evenly is fixed in the annular groove through screw.
The unsteady boring head of the crooked internal surface of bloom of the processing of the utility model, wherein said positioning key is the carbide alloy material.
The unsteady boring head that the utility model is processed crooked internal surface of bloom compared with prior art because the other end and the universal contiguous block of boring bar connector flexibly connect, promptly guide mould can be in pipe relatively the boring bar upper and lower, left and right move; The flexibility of self adaptation pipe effectively, and guiding mould and boring cutter mechanism guide mould just can pass to boring cutter to the flexibility of pipe well and carry out cut for being rigidly connected; Guarantee that processing back pipe wall thickness deflection scope is in 0.5mm; The realization working (machining) efficiency is high, and the range of work is wide, does not receive the pipe specification limits; The scrap build investment is little, and does not influence the processing characteristics of former boring machine after transforming.
Be described further below in conjunction with the unsteady boring head of accompanying drawing the crooked internal surface of bloom of processing of the utility model.
Description of drawings
Fig. 1 processes the structural representation of the unsteady boring head of crooked internal surface of bloom for the utility model.
The specific embodiment
As shown in Figure 1, the unsteady boring head that the utility model is processed crooked internal surface of bloom comprises boring bar 1, boring bar connector 2, universal contiguous block 3, guiding mould 4, back shaft 5, boring cutter mechanism, and an end of boring bar connector 2 is threaded with boring bar 1; The other end of boring bar connector 2 is offered spherical groove 21; One end of universal contiguous block 3 is provided with ball bumps 31, and the radian of ball bumps 31 and spherical groove 21 is all greater than 180 °, and the radian of ball bumps 31 is less than the radian of spherical groove 21; Ball bumps 31 embeds in the spherical groove 21; Ball bumps 31 can freely be rotated in spherical groove 21, and an end of back shaft 5 is provided with projection 51, and projection 51 embeds in the groove 32 of universal contiguous block 3 other ends; Projection 51 is blocked in groove 32 arranged outside convex edges 33, and fixing at the arranged outside cutting ferrule 34 of universal contiguous block 3.
Boring cutter mechanism comprises cutterhead 61, boring cutter 62, and the other end of back shaft 5 is through the cutterhead 61 that is threaded, and cutterhead 61 front ends are symmetrical set two grooves with center line, fixing knife rest 63 in each groove, and boring cutter 62 is fixed on the knife rest 63 through screw.For guaranteeing the processing stability of whole pipe, particularly when being about to machine, guiding mould 4 withdraws from from pipe gradually; Boring cutter mechanism loses guiding gradually; Therefore guide the distance between mould 4 and the boring cutter mechanism should be as far as possible little, and at the rear portion of cutterhead 61 two groups of carbide alloy positioning keys 64 of symmetric arrangement, on the cutterhead 61 external diameter at positioning key 64 places and processing afterwards the internal diameter of pipe equate; Position and 62 one-tenth 90 ° of boring cutters that positioning key 64 is provided with; After guiding mould 4 withdraws from,, accomplish boring work smoothly up to boring cutter 62 by positioning key 64 channeling conducts from pipe.
The course of work that the utility model is processed the unsteady boring head of crooked internal surface of bloom is:
The utility model floats boring head when carrying out boring processing bending pipe; Can make full use of existing deep hole boring machine equipment, only push away boring and change into and draw boring present, the chip removal mode of employing is consistent with traditional boring machine with the pipe method of clamping; It is the workpiece rotation; Boring bar is done rectilinear motion, and is easy for installation, and do not influence original boring machine processing characteristics.Because ball bumps 31 can freely be rotated in spherical groove 21; Promptly guide mould 4 in pipe, to move relative boring bar upper and lower, left and right; The flexibility of self adaptation pipe effectively; And guiding mould 4 and boring cutter mechanism guide mould 4 just can pass to boring cutter 62 to the flexibility of pipe well and carry out cut for being rigidly connected, the evenness of wall thickness after guaranteeing to process.
The utility model is on the basis that makes full use of existing deep hole boring machine equipment; Design a kind of new unsteady boring head, connected boring bar and boring cutter mechanism through universal contiguous block, under the prerequisite that does not influence boring bar rigidity; Closely contact with crooked pipe by rotatable guiding mould; The flexibility of pipe is passed to boring cutter mechanism effectively, thereby realize processing, be particularly useful for elongate curved and the less demanding pipe processing of inside surface roughness crudy to crooked pipe.Because the guiding mould can rotate freely on back shaft, can be with pipe rotation and passive rotation, the power of not only can reducing friction can also contact with pipe better, has avoided the unexpected fluctuation of guiding mould and causes the situation appearance of forging a knife.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (9)
1. unsteady boring head of processing crooked internal surface of bloom; Comprise boring bar, boring cutter mechanism, it is characterized in that: also comprise boring bar connector, universal contiguous block, guiding mould, back shaft, an end of boring bar connector is connected with boring bar; The other end of boring bar connector and universal contiguous block flexibly connect; The other end of universal contiguous block is connected with back shaft, and the guiding mould is installed on the back shaft through bearing, and boring cutter mechanism comprises cutterhead, boring cutter; The other end of back shaft is fixedly connected cutterhead, fixes two boring cutters with the center line symmetry on the cutterhead.
2. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 1; It is characterized in that: the other end of said boring bar connector is offered spherical groove; One end of universal contiguous block is provided with ball bumps, and the radian of ball bumps and spherical groove is all greater than 180 °, and the radian of ball bumps is less than the radian of spherical groove; Ball bumps embeds in the spherical groove, and ball bumps can freely be rotated in spherical groove.
3. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 2 is characterized in that: the evenly fixing some groups of support guide keys of the lateral surface of said guiding mould.
4. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 3; It is characterized in that: two groups of positioning keys of the rear portion symmetric arrangement of said cutterhead; On the cutterhead external diameter at positioning key place with processing after the pipe internal diameter equate that the position of positioning key setting becomes 90 ° with boring cutter.
5. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 4 is characterized in that: said cutterhead front end is provided with two grooves, fixing knife rest in each groove, and boring cutter is fixed on the knife rest through screw.
6. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 5; It is characterized in that: an end of said back shaft is provided with projection; Projection embeds in the groove of the universal contiguous block other end, and projection is blocked in groove arranged outside convex edge, and fixes at the arranged outside cutting ferrule of universal contiguous block.
7. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 6 is characterized in that: said support guide key material is a high-temperature wearable rubber, and has elasticity.
8. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 7 is characterized in that: the lateral surface of said guiding mould is offered annular groove, and the support guide key has four groups, evenly is fixed in the annular groove through screw.
9. the unsteady boring head of the crooked internal surface of bloom of processing according to claim 8 is characterized in that: said positioning key is the carbide alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200809027U CN202479530U (en) | 2012-03-06 | 2012-03-06 | Floating boring head for processing internal surface of swan-neck pipe billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200809027U CN202479530U (en) | 2012-03-06 | 2012-03-06 | Floating boring head for processing internal surface of swan-neck pipe billet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479530U true CN202479530U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200809027U Expired - Fee Related CN202479530U (en) | 2012-03-06 | 2012-03-06 | Floating boring head for processing internal surface of swan-neck pipe billet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601402A (en) * | 2012-03-06 | 2012-07-25 | 新兴铸管股份有限公司 | Floating boring head for processing inner surface of bent tube billets |
| CN103769634A (en) * | 2014-01-26 | 2014-05-07 | 艾欧特克（江苏）机床有限公司 | Boring cutter for machining stainless steel and high-nickel alloy material |
-
2012
- 2012-03-06 CN CN2012200809027U patent/CN202479530U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601402A (en) * | 2012-03-06 | 2012-07-25 | 新兴铸管股份有限公司 | Floating boring head for processing inner surface of bent tube billets |
| CN102601402B (en) * | 2012-03-06 | 2014-12-31 | 新兴铸管股份有限公司 | Floating boring head for processing inner surface of bent tube billets |
| CN103769634A (en) * | 2014-01-26 | 2014-05-07 | 艾欧特克（江苏）机床有限公司 | Boring cutter for machining stainless steel and high-nickel alloy material |
| CN103769634B (en) * | 2014-01-26 | 2017-10-24 | 艾欧特克（江苏）机床有限公司 | For processing stainless steel and the drawing boring cutter of high nickel alloy material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20170306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |