CN102784943B - Blind hole machining device - Google Patents
Blind hole machining device Download PDFInfo
- Publication number
- CN102784943B CN102784943B CN201210270636.9A CN201210270636A CN102784943B CN 102784943 B CN102784943 B CN 102784943B CN 201210270636 A CN201210270636 A CN 201210270636A CN 102784943 B CN102784943 B CN 102784943B
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- Prior art keywords
- boring bar
- taper roll
- boring
- roll bearing
- hole
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- 238000003754 machining Methods 0.000 title abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 14
- 239000012809 cooling fluid Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The invention discloses a blind hole machining device, and belongs to the technical field of machining. The device comprises a boring-milling machine, a boring bar, a connecting and pulling device, a cutter, and a clamp for clamping a to-be-machined workpiece, and further comprises a support sleeve, a rolling bearing, and a support frame to be fixed in an inner hole of the to-be-machined workpiece, wherein the clamp is mounted on the workbench of the boring-milling machine; one end of the boring bar is mounted on a boring shaft of the boring-milling machine; the cutter is mounted at the other end of the boring bar through the connecting and pulling device; the boring bar is sleeved by the support sleeve; the support sleeve is arranged at the end, which is connected with the connecting and pulling device, of the boring bar; the rolling bearing is arranged between the support sleeve and the boring bar; and a plurality of supported holes, through which the boring bar can pass through to support the support sleeve, are formed in the support frame. Through the arrangement of the support sleeve and the support frame, the boring bar is supported and positioned while being used for machining a deeper blind hole, and the position of the boring bar cannot deviate during vibration. Therefore, the impact of vibration is reduced; the machining accuracy and the blind hole machining precision are improved.
Description
Technical field
The present invention relates to Machining Technology field, particularly a kind of blind hole processing device.
Background technology
In mechanical technology, when the length in hole and the ratio of diameter are greater than 5, be referred to as deep hole, deep hole can be divided into through hole and blind hole again by its shape.Wherein, the processing of deep hole blind hole is a difficult point in mechanical processing technique.
Existing blind hole processing device, generally comprise boring and milling machine, the boring bar be arranged on the boring axle of boring and milling machine, be arranged on the cutter on boring bar and be set in outside boring bar lathe side pillow.In process, lathe side's pillow is used for supporting boring bar and locating, and avoids boring bar to vibrate.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
When needs are inside the endoporus of workpiece during processing blind hole, such as spin locking screw rod etc., because the gap between blind hole and inner hole of workpiece hole wall is less, lathe side's pillow cannot enter inside the endoporus of workpiece, if desired the blind hole depth processed is excessive, the vibration of boring bar in process can cause the precision of blind hole to reach requirement, even owing to vibrating excessive cannot processing.
Summary of the invention
In order to improve the machining accuracy of blind hole, embodiments provide a kind of blind hole processing device.Described technical scheme is as follows:
Embodiments provide a kind of blind hole processing device, described device comprises:
Boring and milling machine, boring bar, connect and draw device, cutter and the fixture for clamping workpiece to be processed, described fixture is arranged on the workbench of described boring and milling machine; One end of described boring bar is arranged on the boring axle of described boring and milling machine, the other end drawing device to be arranged on described boring bar is connect described in described cutter passes through, described device also comprises support set, rolling bearing and for being fixed on the bracing frame in the endoporus of workpiece to be processed, described support set to be set on described boring bar and be positioned at described boring bar connect the one end of drawing device to be connected with described, described rolling bearing is located between described support set and described boring bar, and support frame as described above is provided with the supported hole for supporting described support set that the described boring bar of multiple confession passes through; Support frame as described above comprises gripper shoe and column, described column is hollow structure, one end of described column is provided with the inward flange of the bottom surface of the endoporus for being fixed on described workpiece to be processed, the other end of described column is fixed on the middle part of described gripper shoe, and described supported hole is distributed in described gripper shoe along described gripper shoe circumference.
Preferably, the diameter of described gripper shoe periphery is identical with the diameter of the endoporus of described workpiece to be processed.
Preferably, described column is provided with through hole.
Preferably, the hole wall of described supported hole is provided with guide angle.
Preferably, described device also comprises cooling package, the output pipe that described cooling package comprises tank for coolant, the hydraulic pump be connected with described tank for coolant and is connected with described hydraulic pump, described boring bar, connect and draw the inside of device and cutter to be provided with the cooling duct be interconnected, described cooling duct is communicated with described output pipe.
Preferably, described device also comprises recovery channel and the collection box for reclaiming the cooling fluid after use, and the opening part of the endoporus of described workpiece to be processed is located at by described collection box, and described collection box is communicated with by described recovery channel with described tank for coolant.
Preferably, described cooling package also comprises filter, and described tank for coolant is connected with described hydraulic pump by described filter.
Particularly, described rolling bearing comprises the first taper roll bearing and the second taper roll bearing, described first taper roll bearing and described second taper roll bearing lay respectively at the two ends of described support set, and described first taper roll bearing and described second taper roll bearing symmetry are installed.
Preferably, the two ends of the inwall of described support set are respectively equipped with the first groove and the second groove, described first taper roll bearing is arranged in described first groove, and the outer ring of described first taper roll bearing is on the sidewall being located at described first groove, described boring bar is arranged with axle sleeve and described axle sleeve draws between device to the inner ring and described connecing being located at described first taper roll bearing; Described boring bar is also provided with outward flange, described second taper roll bearing is arranged in described second groove, and the outer ring of described second taper roll bearing is on the sidewall being located at described second groove, the inner ring of described second taper roll bearing is to being located at described outward flange.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: by arranging support set and bracing frame, when the blind hole that working depth is larger, support set and bracing frame support boring bar and locate, make boring bar deviation can not occur in its position when vibrating, reduce the impact of vibration, improve accuracy and the blind hole machining accuracy of processing.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of blind hole processing device provided in the embodiment of the present invention;
Fig. 2 is the structural representation of the support set provided in the embodiment of the present invention;
Fig. 3 be provide in the embodiment of the present invention connect the structural representation drawing device;
Fig. 4 is the schematic cross-section of the bracing frame provided in the embodiment of the present invention;
Fig. 5 is the upward view of the bracing frame provided in the embodiment of the present invention.
In accompanying drawing, the component list representated by each label is as follows:
1 boring and milling machine; 11 boring axles; 12 workbench; 2 boring bars; 21 outward flanges; 3 connect and draw device; 31 boss; 4 cutters; 5 cooling packages; 51 tank for coolants; 52 hydraulic pumps; 53 output pipes; 54 cooling ducts; 55 filters; 6 fixtures; 7 support sets; 71 rolling bearings; 711 first taper roll bearings; 712 second taper roll bearings; 721 first grooves; 722 second grooves; 73 axle sleeves; 74 drive end bearing brackets; 75 rear end caps; 8 bracing frames; 81 gripper shoes; 811 supported holes; 812 guide angles; 82 columns; 821 through holes; 822 inward flanges; 823 locating holes; 83 screws; 9 workpiece; The bottom surface of 91 endoporus; 92 chip space.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
Embodiments provide a kind of blind hole processing device, see Fig. 1 and Fig. 2, this device comprises:
Boring and milling machine 1, boring bar 2, connect and draw device 3, cutter 4 and the fixture 6 for clamping workpiece to be processed 9, fixture 6 is arranged on the workbench 12 of boring and milling machine 1; One end of boring bar 2 is arranged on the boring axle 11 of boring and milling machine, cutter 4 is by connecing the other end drawing device 3 to be arranged on boring bar 2, this device also comprise support set 7, rolling bearing 71 and for be fixed on workpiece to be processed 9 endoporus in bracing frame 8, support set 7 to be set on boring bar 2 and be positioned at boring bar 2 with connect the one end of drawing device 3 to be connected, rolling bearing 71 is located between support set 7 and boring bar 2, and bracing frame 8 is provided with multiple supported hole 811 (see Fig. 4) for supported cover 7 passed through for boring bar 2.
Preferably, boring and milling machine 1 can be numerical control floor type boring and milling machine.
Particularly, supported hole 811, for supported cover 7, aims at blind hole to be processed to make the cutter 4 on boring bar 2.
Particularly, cutter 4 can comprise drill bit and boring cutter.Easily know, when using boring cutter processing blind hole, many when needing to adopt boring cutter being carried out expansion to the hole after drilling cut, and the length of boring cutter different time, can connect by transition the length difference that handle compensates boring cutter, this technology, known by those skilled in the art, is not described in detail in this.
When processing blind hole, cutter 4 and boring bar 2 can produce vibration, by the supporting and location of support set 7 and bracing frame 8, avoid the skew that position occurs due to vibration for boring bar 2 and cutter 4, thus improve accuracy and the precision of processing.And owing to have employed rolling bearing, make when processing blind hole, support set 7 can not rotate along with the rotation of boring bar 2, thus avoid support set 7 with bracing frame 8 and produce high temperature due to relative rotation, and then situation about burning to death.
Particularly, composition graphs 3, connects and draws one end of device 3 to be set on the handle of a knife of cutter 4, connects to draw the other end of device 3 to be provided with to draw that the radial direction of device 3 extends and for the boss 31 of the other end that is fixed on boring bar 2, boss 31 is fixed by screws on the end face of boring bar 2 along connecing.
Particularly, refer again to Fig. 2, rolling bearing 71 comprises the first taper roll bearing 711 and the second taper roll bearing 712, first taper roll bearing 711 and the second taper roll bearing 712 lay respectively at the two ends of support set 7, and the first taper roll bearing 711 and the second taper roll bearing 712 symmetry are installed.Particularly, symmetrical installation makes the first taper roll bearing 711 one end less with the second taper roll bearing 712 relative or make larger one end relatively, thus axial force when can bear boring bar 2 feed or withdrawing.
Further, the two ends of the inwall of support set 7 are respectively equipped with the first groove 721 and the second groove 722, first taper roll bearing 711 is arranged in the first groove 721, and the outer ring of the first taper roll bearing 711 is on the sidewall being located at the first groove 721, boring bar 2 is arranged with axle sleeve 73 and axle sleeve 73 to being located at the inner ring of the first taper roll bearing 711 and connecing and draw between device 3; Boring bar 2 is also provided with outward flange 21, and the second taper roll bearing 712 is arranged in the second groove 722, and the outer ring of the second taper roll bearing 712 is on the sidewall being located at the second groove 722, and the inner ring of the second taper roll bearing is to being located at outward flange 21.By making the outer ring of the first taper roll bearing 711 on the sidewall being located at the first groove 721, the inner ring of the first taper roll bearing to being located at axle sleeve 73, thus carries out axial location to the first taper roll bearing 711.By making the outer ring of the second taper roll bearing 712 on the sidewall being located at the second groove 722, the inner ring of the second taper roll bearing 712 to being located at outward flange 21, thus carries out axial location to the second taper roll bearing 712.
Alternatively, the two ends of support set 7 are also provided with drive end bearing bracket 74 and rear end cap 75, and drive end bearing bracket 74 and rear end cap 75 are fixed on the two ends of support set 7 respectively by screw.By arranging drive end bearing bracket 74 and rear end cap 75 can be dust-proof.
As the preferred embodiments of the present invention, as shown in Figure 4 and Figure 5, the bracing frame 8 of the present embodiment comprises gripper shoe 81 and column 82, column 82 is hollow structure, one end of column 82 is provided with the inward flange of the bottom surface 91 of the endoporus for being fixed on workpiece to be processed 9, the other end of column is fixed on the middle part of gripper shoe, and supported hole 811 is distributed in gripper shoe 81 along the circumference of gripper shoe 81.
Particularly, the inward flange of column is provided with multiple locating hole 823, by coordinating of screw 83 and this locating hole 823, thus is fixed on by bracing frame 8 on the bottom surface 91 of the endoporus of workpiece to be processed 9.
Further, the diameter of gripper shoe 81 periphery is identical with the diameter of the endoporus of workpiece to be processed 9, thus can by the endoporus of workpiece to be processed 9 and be fixed on workpiece to be processed 9 endoporus bottom surface 91 on column 82 common bracing frame 8 supported and locates, thus improve the freedom from vibration of bracing frame 8.Apparently, the diameter of gripper shoe 81 periphery also can be less than the diameter of the endoporus of workpiece to be processed 9, now, by means of only be fixed on workpiece to be processed 9 endoporus bottom surface 91 on column 82 pairs of bracing frames 8 support and locate.
Preferably, refer again to Fig. 4, column 82 be provided with through hole 821.By arranging through hole 821, the work bits produced in processing can be made to be discharged in chip space 92 (as shown in Figure 1) by through hole, thus to be convenient to the discharge of the work bits in processing.
Preferably, the hole wall of supported hole 811 is provided with guide angle 812.Guide angle 812 refers to processes an inclined-plane at the hole wall of supported hole 811.By arranging guide angle 812, be convenient to support set 7 through described supported hole 811.
Particularly, refer again to Fig. 1, this device also comprises cooling package 5, the output pipe 53 that this cooling package 5 comprises tank for coolant 51, the hydraulic pump 52 be connected with tank for coolant 51 and is connected with hydraulic pump 52, boring bar 2, connect the cooling duct 54 of drawing the inside of device 3 and cutter 4 to be provided with to be interconnected, cooling duct 54 is communicated with output pipe 53.By at boring bar 2, connect and draw the inside of device 3 and cutter 4 that the cooling duct 54 be interconnected is set, the cooling fluid of drilling and boring can be cooled through the machined surface of hydraulic pump 52, output pipe 53 and cooling duct 54 pairs of workpieces to be processed 9, and work bits drilling and boring produced wash away, consider blocking impact processing to be worth doing to avoid work.
Preferably, this device also comprises recovery channel (not shown) and the collection box (not shown) for reclaiming the cooling fluid after use, the opening part of the endoporus of workpiece to be processed 9 is located at by collection box, and collection box is communicated with by recovery channel with tank for coolant 51.By arranging collection box, used cooling fluid is flowed out from inner hole of workpiece, flow into collection box, and enter tank for coolant 51 by recovery channel, cooling fluid can recycle, and provides cost savings.
Preferably, cooling package 5 also comprises filter 55, and tank for coolant 51 is connected with hydraulic pump 52 by filter 55.Can be filtered cooling fluid by filter, thus ensure that the quality of the cooling fluid recycled.
Below to process the disc spring hole in spin locking screw rod, the course of work of the blind hole processing device that the embodiment of the present invention provides is described.
When the blind hole processing device work of the embodiment of the present invention, first bracing frame 8 is arranged in the endoporus of spin locking screw rod, by screw 83, the inward flange 822 of the column 82 of bracing frame 8 is fixed on the bottom surface of spin locking screw rod, then support set 7 is arranged on one end that will enter the endoporus of spin locking screw rod of boring bar 2, then be arranged on the end face that will enter one end of the endoporus of spin locking screw rod of boring bar 2 by screw by connecing the boss 31 drawing device 3, being arranged on by cutter 4 to connect draws on device 3, and adopt tool setting gauge to carry out tool setting to cutter 4, then boring bar 2 is stretched in the endoporus of spin locking screw rod, and make boring bar 2 through the supported hole 811 of bracing frame 8 just to the disc spring hole that will process, and the supported hole 811 of bracing frame 8 contacts with support set body 72, then nc program is called, carry out the processing in disc spring hole.Add man-hour, be generally the disc spring hole of the endoporus upper wall first processing spin locking screw rod, then spin locking screw rod radially rotated 180 °, then process remaining disc spring hole.Carry out batch processing to disc spring hole, when being the upper wall of the endoporus owing to being positioned at current spin locking screw rod when disc spring hole, the work of processing bits are easily discharged in chip space 92, to make in processing not easily Integrated Chip.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: by arranging support set and bracing frame, when the blind hole that working depth is larger, support set and bracing frame support boring bar and locate, make boring bar deviation can not occur in its position when vibrating, reduce the impact of vibration, improve accuracy and the blind hole machining accuracy of processing.And be provided with through hole on the column of bracing frame, the work bits be conducive in processing are discharged to chip space from through hole.By arranging inner cooling path, can cool machined surface, solving the cooling problem in processing, and work bits drilling and boring produced wash away, consider blocking impact processing to be worth doing to avoid work.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a blind hole processing device, comprise boring and milling machine, boring bar, connect and draw device, cutter and the fixture for clamping workpiece to be processed, described fixture is arranged on the workbench of described boring and milling machine; One end of described boring bar is arranged on the boring axle of described boring and milling machine, connects the other end drawing device to be arranged on described boring bar, it is characterized in that described in described cutter passes through,
Described device also comprises support set, rolling bearing and for being fixed on the bracing frame in the endoporus of workpiece to be processed, described support set to be set on described boring bar and be positioned at described boring bar connect the one end of drawing device to be connected with described, described rolling bearing is located between described support set and described boring bar, and support frame as described above is provided with the supported hole for supporting described support set that the described boring bar of multiple confession passes through; Support frame as described above comprises gripper shoe and column, described column is hollow structure, one end of described column is provided with the inward flange of the bottom surface of the endoporus for being fixed on described workpiece to be processed, the other end of described column is fixed on the middle part of described gripper shoe, and described supported hole is distributed in described gripper shoe along the circumference of described gripper shoe.
2. device as claimed in claim 1, the diameter of described gripper shoe periphery is identical with the diameter of the endoporus of described workpiece to be processed.
3. device as claimed in claim 1, it is characterized in that, described column is provided with through hole.
4. device as claimed in claim 1, it is characterized in that, the hole wall of described supported hole is provided with guide angle.
5. device as claimed in claim 1, it is characterized in that, described device also comprises cooling package, the output pipe that described cooling package comprises tank for coolant, the hydraulic pump be connected with described tank for coolant and is connected with described hydraulic pump, described boring bar, connect and draw the inside of device and cutter to be provided with the cooling duct be interconnected, described cooling duct is communicated with described output pipe.
6. device as claimed in claim 5, it is characterized in that, described device also comprises recovery channel and the collection box for reclaiming the cooling fluid after use, and the opening part of the endoporus of described workpiece to be processed is located at by described collection box, and described collection box is communicated with by described recovery channel with described tank for coolant.
7. device as claimed in claim 5, it is characterized in that, described cooling package also comprises filter, and described tank for coolant is connected with described hydraulic pump by described filter.
8. device as claimed in claim 1, it is characterized in that, described rolling bearing comprises the first taper roll bearing and the second taper roll bearing, described first taper roll bearing and described second taper roll bearing lay respectively at the two ends of described support set, and described first taper roll bearing and described second taper roll bearing symmetry are installed.
9. device as claimed in claim 8, it is characterized in that, the two ends of the inwall of described support set are respectively equipped with the first groove and the second groove, described first taper roll bearing is arranged in described first groove, and the outer ring of described first taper roll bearing is on the sidewall being located at described first groove, described boring bar is arranged with axle sleeve and described axle sleeve draws between device to the inner ring and described connecing being located at described first taper roll bearing; Described boring bar is also provided with outward flange, described second taper roll bearing is arranged in described second groove, and the outer ring of described second taper roll bearing is on the sidewall being located at described second groove, the inner ring of described second taper roll bearing is to being located at described outward flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270636.9A CN102784943B (en) | 2012-07-31 | 2012-07-31 | Blind hole machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270636.9A CN102784943B (en) | 2012-07-31 | 2012-07-31 | Blind hole machining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102784943A CN102784943A (en) | 2012-11-21 |
| CN102784943B true CN102784943B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210270636.9A Expired - Fee Related CN102784943B (en) | 2012-07-31 | 2012-07-31 | Blind hole machining device |
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| Country | Link |
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| CN (1) | CN102784943B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506654B (en) * | 2013-10-11 | 2016-04-20 | 一重集团绍兴重型机床有限公司 | A kind of inner bore of pipeline organisation of working |
| CN103521803B (en) * | 2013-10-11 | 2017-01-11 | 一重集团绍兴重型机床有限公司 | Inner hole machining device of pipeline arc bend |
| CN104128636A (en) * | 2014-07-30 | 2014-11-05 | 东方电气集团东方汽轮机有限公司 | Small-cavity inner hole belt supporting modularized boring tool and use method |
| CN109047801A (en) * | 2018-09-30 | 2018-12-21 | 西安鑫旺矿业设备有限公司 | A kind of blind hole boring cutter component |
| CN114289759A (en) * | 2022-01-09 | 2022-04-08 | 吴爱玲 | Deep hole processing device on large-scale wind-powered electricity generation box |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2615030B2 (en) * | 1987-01-29 | 1997-05-28 | 三井精機工業株式会社 | Processing equipment and method using small diameter long line boring bar |
| ATE485911T1 (en) * | 2005-12-06 | 2010-11-15 | Magnaghi Aeronautica S P A | METHOD AND DEVICE FOR DEEP HOLE DRILLING AND FOR PRODUCING NON-CYLINDRICAL INNER CONTOURS |
| JP5440756B2 (en) * | 2008-03-10 | 2014-03-12 | 株式会社Ｉｈｉ | Long shaft inner surface processing apparatus and method |
| CN201201059Y (en) * | 2008-06-05 | 2009-03-04 | 国营险峰机器厂 | Ultra-deep blind hole boring cutter rod |
| CN201455344U (en) * | 2009-06-05 | 2010-05-12 | 上海西格码机床有限公司 | Digit-control horizontal type boring machine |
| CN101733440A (en) * | 2009-12-02 | 2010-06-16 | 毛丹红 | Simple deep-hole boring machine |
| CN201791992U (en) * | 2010-09-02 | 2011-04-13 | 江西铜业股份有限公司 | Deep hole expanding cutter |
| CN201906843U (en) * | 2010-12-27 | 2011-07-27 | 中原特钢股份有限公司 | Cutting chuck for drill boring machine |
| CN201940624U (en) * | 2011-03-02 | 2011-08-24 | 长沙金岭机床有限责任公司 | Tool bit following supporting device for processing deep holes |
| CN202097430U (en) * | 2011-05-17 | 2012-01-04 | 辽宁福鞍（集团）重工机械有限公司 | Deep hole boring processing device for main steam valve body of steam turbine |
-
2012
- 2012-07-31 CN CN201210270636.9A patent/CN102784943B/en not_active Expired - Fee Related
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| CN102784943A (en) | 2012-11-21 |
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Granted publication date: 20150204 |