CN102126032B - Device for precisely boring lug hole of hinge beam - Google Patents
Device for precisely boring lug hole of hinge beam Download PDFInfo
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- CN102126032B CN102126032B CN 201110073628 CN201110073628A CN102126032B CN 102126032 B CN102126032 B CN 102126032B CN 201110073628 CN201110073628 CN 201110073628 CN 201110073628 A CN201110073628 A CN 201110073628A CN 102126032 B CN102126032 B CN 102126032B
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- bearing
- boring bar
- bearing body
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Abstract
The invention discloses a device for precisely boring a lug hole of a hinge beam, which comprises a boring jig frame, a power device and a boring rod, wherein one end of the boring rod is connected with an output shaft of the power device through a universal joint coupler, the bottom of the boring jig frame is provided with a lifting rotating mechanism, a plurality of groups of boring rod supports are symmetrically arranged on the boring jig frame, positioning holes of each group of boring rod supports are positioned on the same axle line; the boring rod supports comprise bases, glands and bearing bodies, the bases and the glands are of a split structure, the bearing bodies are arranged in the boring rod supports; and a smaller gap between the boring rod and a sliding connecting sleeve of the bearing bodies is in the term of meeting the requirement of precision processing. The device has high processing precision, saves processing time and increases production efficiency by above 50 percent.
Description
Technical field
The present invention relates to a kind of device of processing hinge beam, specifically a kind of device for the right boring hinge beam ear hole.
Background technology
In making the diamond process, what usually adopt is hinge beam type cubic hydraulic press equipment, and hinge beam is the requisite key components and parts of this equipment, hinge beam when assembling earhole and cylinder body high position quality of fit is arranged, in present prior art, special-purpose hinge beam right boring unit is mainly by the boring mould bracket of fixed hinge beam, bed piece, power set and boring bar form, at first hinge beam is stepped up on boring mould bracket, boring bar is to the boring ear hole of hinge beam one side, rear use overhead traveling crane is sling hinge beam again fixing behind the half-twist, boring bar carries out the earhole that four sides of hinge beam are finished in right boring successively at the boring ear hole that carries out opposite side.In the process of four side earholes of right boring, owing to constantly adjust the position relationship of hinge beam, to reorientate, process also must repeatedly be used overhead traveling crane, and therefore, this kind equipment not only production efficiency is low, and machining accuracy is difficult to guarantee.
Some enterprise extracts experience from the prior art, fixed station is designed to the function that promotes and rotate, Chinese patent for example, the patent No.: 200920170521.6, this kind equipment has saved the overhead traveling crane stand-by period, yet this kind equipment still has irresistible drawback, and one, hinge beam are located inaccurate, and the precision of earhole is difficult to guarantee after the processing; Two, the centre bore of boring rod support seat and boring bar gap are larger, and the circularity of the earhole of processing does not reach requirement, and at present, the best clearance between boring bar and the bearing hole is 0.12 millimeter, if excesssive gap, too low causing of the earhole precision of processing can't use; If the gap is too little, on the one hand boring bar being penetrated bearing hole is to grind easily wound, is that boring bar and bearing hole are prone to locking phenomenon on the other hand; Three, boring bar is in right boring earhole process, pass earhole after two ends be located on the supporting base because boring bar and the simple sliding friction of supporting base hole, wearing and tearing are very fast, during the shutdown replacement cost, affect production efficiency; Four, because the conventional boring rod support seat that adopts is fixing structure, the boring bar aligning of being sling about several meters long by overhead traveling crane only has the bearing hole in 0.12 millimeter gap (gap in boring bar and boring rod support seat hole) to penetrate, the workman operates very difficult, and, need the other end of boring bar is passed another bearing hole after penetrating first bearing hole, yet two own concentricitys of bearing hole after the processing are not high, so, boring bar is penetrated two bearing holes wasting time and energy very, and greatly prolong process time; Five, in processing earhole process, need constantly the precision of measurement earhole whether up to standard, for this reason, need constantly boring bar is pulled out, earhole is measured, therefore, reduced enterprises production efficiency.
Summary of the invention
The objective of the invention is the deficiency for solving the problems of the technologies described above, improve a kind of device for the right boring hinge beam ear hole, machining accuracy is high, and saves process time, enhances productivity more than 50%.
The present invention is the deficiency that solves the problems of the technologies described above, the technical scheme that adopts is: a kind of device for the right boring hinge beam ear hole, comprise boring mould bracket and power set, boring mould bracket and power set split arrange, be provided with lifting rotation mechanism in the boring mould bracket bottom, be provided with four groups of identical boring rod support seats at boring mould bracket, described boring rod support seat is by base, gland and bearing body form, base and gland are split-type structural, be respectively equipped with cavity at base and gland, cavity is oppositely arranged, bearing body be one independently movable body be arranged in the cavity, in the inner chamber of bearing body, be provided with boring bar, the boring template cutter head is arranged between two identical bearing bodies of same axis on the boring bar, and the connector of boring bar is connected with the output shaft of power set, and an end of base and gland is by chain connection, the other end is locked in bearing body in the cavity by gland, and by bolt base is fixedly connected with gland.
Described bearing body mainly is comprised of slip cap, bearing and shell, and slip cap is in the enclosure nested, is provided with bearing between slip cap and shell, and the end cap that arranges in the both ends of the surface of shell forms integrative-structure with slip cap, bearing and shell.
The gap of the slip cap of described boring bar and bearing body is 0.03-0.15 ㎜.
The gap of the slip cap of described boring bar and bearing body is 0.03-0.05 ㎜.
Described boring mould bracket is provided with the centralized positioning sleeve.
Also be provided with clamp mechanism on the described boring mould bracket.
The connector of boring bar is connected with the output shaft of power set by gimbal coupling.
Described boring bar is provided with measured hole.
The invention has the beneficial effects as follows:
The present invention has the following advantages: one, by an end that supports at boring bar boring rod support seat is set, this boring rod support seat is comprised of base and gland, gland one side is connected with hinge or bolt with base, the easier installation boring bar of this kind mode, saved the multiple bearing debugging of installing behind the boring bar, enhance productivity, they are two years old, between boring bar and boring rod support seat, be provided with the bearing body of the absolute construction of one, rolling friction is changed in the sliding friction of routine, and bearing body has guaranteed the rotation precision of boring bar, because boring bar and bearing body do not relatively rotate, therefore can not produce locking phenomenon, and the gap of boring bar and slip cap is 0.03-0.05 ㎜, guarantee that bearing body can move axially by boring bar, be more convenient for installing, both guaranteed machining accuracy, improved simultaneously the service life of boring bar; They are three years old, because the employed bearing body of this patent is absolute construction, when bearing body affects machining accuracy because of wearing and tearing, only needing to change off-the-shelf bearing body can continue to produce, and conventional bearing spider is fixing fast knot structure, during serious wear, need to stop work and change the bearing that is fixed on the boring mould bracket, waste time and energy.Four, be provided be used to the measured hole of putting into inside micrometer at the boring bar body, after processing earhole at every turn, boring bar need not be pulled out and measure the earhole precision, only need micrometer is put into measured hole, can finish the process of measuring check, save the time that repeatedly repeats the installation and debugging boring bar, in conjunction with above advantage, hinge beam of average every processing was saved 40 minutes at least, therefore improved enterprises production efficiency more than 50%, had virtually improved the competitiveness of enterprise.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the set-up mode structural representation of boring mould bracket.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structural representation of boring bar among the present invention.
Fig. 5 is the structural representation of boring rod support seat among the present invention.
Fig. 6 is the unfolding mode structural representation of boring rod support seat.
Fig. 7 is the structural representation of middle (center) bearing body of the present invention.
Fig. 8 is the structural representation of hinge beam.
Mark among the figure: 1, boring mould bracket, 2, bed piece, 3, power slide, 4, power set, 5, gimbal coupling, 6, boring bar, 7, centralized positioning sleeve, 8, support column, 9, fixed supporting seat, 10, lifting rotation mechanism, 11, boring rod support seat, 12, clamp mechanism, 13, Cutting tool installation manner hole, 14, measured hole, 15, bearing body, 16, hinge beam, 17, ear, 18, cylinder body, 19, earhole, 20, the hinge beam locating surface, 21, gland, 22, base, 23, bearing pin, 24, shell, 25, slip cap, 26, bearing, 27, end cap.
The specific embodiment
As shown in the figure, a kind of device for the right boring hinge beam ear hole, mainly by the boring mould bracket 1 that fixedly mounts hinge beam, bed piece 2, power set 4 and boring bar 6 consist of, one end of boring bar 6 is connected with the output shaft of power set 4 by gimbal coupling 5, be provided with power slide 3 at bed piece 2, power set 4 are arranged on the power slide 3, boring mould bracket 1 is supported by four support columns 8, be provided with lifting rotation mechanism 10 in boring mould bracket 1 bottom, lifting rotation mechanism 10 is arranged on the fixed supporting seat 9, be fixed with centralized positioning sleeve 7 and clamp mechanism 12 on boring mould bracket 1 top, be used for the location of hinge beam cylinder body and fix to clamp, boring mould bracket 1 upper face is provided with boring rod support seat 11, be used for the support of boring bar and the running accuracy of assurance boring bar, described boring rod support seat 11 is by base 22, gland 21 and bearing body 15 form, gland 21 can be opened, bearing body 15 is arranged in the locating hole of boring rod support seat 11, boring bar 6 is 0.03-0.15 ㎜ with the gap of the slip cap 25 of bearing body 15, best clearance is 0.03-0.05 ㎜, therefore, the staff is easy to bearing body is enclosed within on the boring bar, boring bar is arranged in the boring rod support seat by bearing body, when boring bar rotates, do not relatively rotate between bearing body and the boring bar, therefore can not produce locking phenomenon, long service life and machining accuracy are high.
Described boring mould bracket 1 upper face is provided with four groups of boring rod support seats, four groups of boring rod support seats 11 consist of a square, every one side is one group, every one side arranges two boring rod support seats, and the locating hole of two boring rod support seats on every one side guarantees the earhole machining accuracy of each side of hinge beam on same axis.
Described fixed supporting seat 9 is provided with rail groove, lifting rotation mechanism 10 is arranged in the rail groove,, regulates screw regulating mechanism the displacement of whole lifting rotation mechanism by being set, thereby reached the vertical range of adjusting between rotation and the boring bar, the boring mould bracket that only need change respective model can be realized the processing of another kind of model hinge beam, simple in structure, and practical and convenient.
Described boring rod support seat 11, in the semicolumn cavity of gland 21 bottoms and the base 22 top semicolumn cavitys formation locating holes bearing body 15 is set, the both sides of gland 21 both sides and base 22 respectively correspondence are provided with engaging lug, base is connected the engaging lug connected mode of side and can be that bearing pin or bolt connect with gland, the engaging lug of opposite side is with bolts, therefore gland can be opened, the staff at first is enclosed within bearing body on the boring bar, then bearing body is placed in the boring rod support seat of opening, this moment, the case surface of bearing body contacted with the locating hole inner surface of boring rod support seat, the outer circumference surface of boring bar contacts with the slip cap inner peripheral surface, because conventional technology is for guaranteeing the machining accuracy of boring bar, boring rod support seat must adopt the structure that is fixed as one just can reach requirement, if bearing is made split type, then be difficult to guarantee the machining accuracy of boring bar, because above condition restriction, therefore in process, after boring bar passes a bearing, successively in earhole is arranged on another bearing, therefore, whole operation is difficulty comparatively, and the time is longer, the present invention, owing to overlap the bearing body that integrative-structure is arranged at boring bar, be arranged in the boring rod support seat by bearing body, afterwards boring rod support seat is fixed, easy to operate, improve working (machining) efficiency, and the bearing spider that routine techniques adopts is fixing fast knot structure, during serious wear, need to stop work and change the bearing that is fixed on the boring mould bracket, waste time and energy.
Described bearing body 15 mainly is comprised of shell 24, slip cap 25, bearing 26 and end cap 27, slip cap 25 is provided with the inner chamber of an equal diameters, internal chamber wall is smooth periphery, be provided with boss at slip cap 25 outer circumference surfaces, the boss both sides circumferential body be separately positioned on the inner ring of bearing 26, shell 24 is a cylinder, and slip cap 25 and bearing 26 be wrapped in wherein, the end cap 27 that arranges in the both ends of the surface of shell 24 forms integrative-structure with slip cap, bearing and shell, is fixed by screw.Because the employed bearing body of this patent is absolute construction, when bearing body affects machining accuracy because of wearing and tearing, the bearing body that only needs to change deposit can continue to produce, because there are the gap of 0.03-0.05 ㎜ in slip cap and boring bar, therefore, bearing body taken off or all comparatively convenient from newly being installed on the boring bar, just the opposite, conventional technology is: penetrated by the overhead traveling crane locating hole that several meters long boring bar aims at the boring rod support seat that only has 0.12 millimeter gap of slinging, not only cause boring bar and hole to grind wound, reduce machining accuracy, and waste time and energy, in use, bearing body is arranged in the boring rod support seat, slip cap and boring bar form matched in clearance, so boring bar is when rotating, and slip cap rotates with boring bar, the shell of bearing body and boring rod support seat locating hole consist of interference fits, this kind mode has guaranteed that the boring bar machining accuracy is high, and is difficult for producing locking, obtains service life prolonging.
The present invention, be provided be used to the measured hole 14 of putting into measuring instrument at boring bar 6, after processing earhole at every turn, boring bar need not be pulled out and measure the earhole precision, only need micrometer is put into measured hole, can finish the process of measuring check, save the time that repeatedly repeats the installation and debugging boring bar, the size of measured hole is determined according to the diameter of boring bar, has both guaranteed that the intensity of boring bar is convenient for measuring putting into of micrometer again.
The present invention, at first hinge beam 16 is placed on the boring mould bracket 1, cylinder body 18 and the hinge beam locating surface 20 of 7 pairs of hinge beams of centralized positioning sleeve position, the earhole 19 of hinge beam and the locating hole of boring rod support seat 11 are on time, be fixed by 12 pairs of hinge beams 16 of clamp mechanism and ear 17 thereof, the staff slings boring bar 6, there is the staff bearing body 15 to be enclosed within an end of boring bar 6, open afterwards the gland 21 on the boring rod support seat 11, the boring bar that puts bearing body is put into boring rod support seat, as fulcrum, the staff passes earhole successively with boring bar, and there is the boring bar of bearing body to be arranged in the boring rod support seat other end cover, afterwards boring bar is connected with the power set of boring machine, behind the mounting cutter earhole is processed, this kind structure is so that the installation boring bar is more convenient, and because the quality of fit of bearing body and boring bar, machining accuracy is higher, working (machining) efficiency also is greatly improved, and after each processing, boring bar need not be pulled out, measuring instrument is put into measured hole, earhole after the processing is measured whether reach standard value, saved the time that the boring bar debugging repeatedly is installed, greatly improved production efficiency.
Claims (4)
1. device that is used for the right boring hinge beam ear hole, comprise boring mould bracket (1) and power set (4), boring mould bracket (1) and power set (4) split setting, be provided with lifting rotation mechanism (10) in boring mould bracket (1) bottom, be provided with four groups of identical boring rod support seats (11) at boring mould bracket (1), it is characterized in that: described boring rod support seat (11) is by base (22), gland (21) and bearing body (15) form, base (22) and gland (21) are split-type structural, be respectively equipped with cavity at base (22) and gland (21), cavity is oppositely arranged, bearing body (15) is an independently movable body, be arranged in the cavity, described bearing body (15) is mainly by slip cap (25), bearing (26) and shell (24) form, slip cap (25) is nested in the shell (24), between slip cap (25) and shell (24), be provided with bearing (26), the end cap (27) that arranges in the both ends of the surface of shell (24) is with slip cap, bearing and shell form integrative-structure, in the inner chamber of bearing body (15), be provided with boring bar (6), described boring bar (6) is 0.03-0.05 ㎜ with the gap of the slip cap (25) of bearing body (15), boring template cutter head on the boring bar (6) is arranged between two identical bearing bodies (15) of same axis, the connector of boring bar (6) is connected with the output shaft of power set (4), be provided with measured hole (14) at described boring bar (6), one end of base (22) and gland (21) is by chain connection, the other end is locked in bearing body (15) in the cavity by gland (21), and by bolt base (22) is fixedly connected with gland (21).
2. a kind of device for the right boring hinge beam ear hole according to claim 1, it is characterized in that: described boring mould bracket (1) is provided with centralized positioning sleeve (7).
3. a kind of device for the right boring hinge beam ear hole according to claim 1 is characterized in that: also be provided with clamp mechanism (12) on the described boring mould bracket (1).
4. a kind of device for the right boring hinge beam ear hole according to claim 1 is characterized in that: the connector of boring bar (6) is connected with the output shaft of power set (4) by gimbal coupling (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110073628 CN102126032B (en) | 2011-03-25 | 2011-03-25 | Device for precisely boring lug hole of hinge beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110073628 CN102126032B (en) | 2011-03-25 | 2011-03-25 | Device for precisely boring lug hole of hinge beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102126032A CN102126032A (en) | 2011-07-20 |
| CN102126032B true CN102126032B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110073628 Expired - Fee Related CN102126032B (en) | 2011-03-25 | 2011-03-25 | Device for precisely boring lug hole of hinge beam |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500790A (en) * | 2011-11-04 | 2012-06-20 | 中国航空工业集团公司北京航空精密机械研究所 | Precision machining device for middle and long-distance and high-coaxiality hole |
| CN104325168B (en) * | 2014-09-05 | 2017-05-17 | 中国水利水电第十二工程局有限公司 | Method for boring of rotating hinge water seal seat through rotating hinge water seal seat boring device |
| CN104400088B (en) * | 2014-11-06 | 2017-02-22 | 俞贵伍 | Automatic valve cover ear milling machine |
| CN106513768B (en) * | 2017-01-11 | 2018-03-20 | 洛阳启明超硬材料有限公司 | A kind of cubic hydraulic press hinge beam boring equipment |
| CN117161434A (en) * | 2023-10-30 | 2023-12-05 | 河南黄河田中科美压力设备有限公司 | Hinge beam earhole processing tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744170A (en) * | 1994-03-14 | 1998-04-28 | Hall; H. Tracy | Guided high pressure presses |
| CN2291198Y (en) * | 1997-05-07 | 1998-09-16 | 河南黄河实业(集团)公司 | Cylinder beam structure improved hexahedron top diamond press |
| CN1108918C (en) * | 1999-12-17 | 2003-05-21 | 王胜 | A planger-type hexagonal upward hydraulic press and method for measuring and controlling shift of upward hammer |
| CN101376091A (en) * | 2008-10-07 | 2009-03-04 | 河南黄河实业集团股份有限公司 | Integral hinge beam forging structure of hexahedron top press |
| CN101376090A (en) * | 2008-10-07 | 2009-03-04 | 河南黄河实业集团股份有限公司 | Structure of hexahedron top press |
| CN201483007U (en) * | 2009-08-06 | 2010-05-26 | 洛阳天浩泰轨道装备制造有限公司 | Hinge beam special support of hinge beam special fine boring machine |
| CN201483008U (en) * | 2009-08-06 | 2010-05-26 | 洛阳天浩泰轨道装备制造有限公司 | Special reversed T-shaped support for boring rod of hinge beam fine boring special machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201016365Y (en) * | 2007-03-23 | 2008-02-06 | 宝山钢铁股份有限公司 | Readily detachable bearing support structure |
-
2011
- 2011-03-25 CN CN 201110073628 patent/CN102126032B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744170A (en) * | 1994-03-14 | 1998-04-28 | Hall; H. Tracy | Guided high pressure presses |
| CN2291198Y (en) * | 1997-05-07 | 1998-09-16 | 河南黄河实业(集团)公司 | Cylinder beam structure improved hexahedron top diamond press |
| CN1108918C (en) * | 1999-12-17 | 2003-05-21 | 王胜 | A planger-type hexagonal upward hydraulic press and method for measuring and controlling shift of upward hammer |
| CN101376091A (en) * | 2008-10-07 | 2009-03-04 | 河南黄河实业集团股份有限公司 | Integral hinge beam forging structure of hexahedron top press |
| CN101376090A (en) * | 2008-10-07 | 2009-03-04 | 河南黄河实业集团股份有限公司 | Structure of hexahedron top press |
| CN201483007U (en) * | 2009-08-06 | 2010-05-26 | 洛阳天浩泰轨道装备制造有限公司 | Hinge beam special support of hinge beam special fine boring machine |
| CN201483008U (en) * | 2009-08-06 | 2010-05-26 | 洛阳天浩泰轨道装备制造有限公司 | Special reversed T-shaped support for boring rod of hinge beam fine boring special machine |
Non-Patent Citations (1)
| Title |
|---|
| 谭牧田.耳轴轴承装置.《氧气转炉炼钢设备》.机械工业出版社,1983,97-99. * |
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