CN106181476B - Crankshaft end-face drilling connecting screw hole accessory - Google Patents
Crankshaft end-face drilling connecting screw hole accessory Download PDFInfo
- Publication number
- CN106181476B CN106181476B CN201610671355.2A CN201610671355A CN106181476B CN 106181476 B CN106181476 B CN 106181476B CN 201610671355 A CN201610671355 A CN 201610671355A CN 106181476 B CN106181476 B CN 106181476B
- Authority
- CN
- China
- Prior art keywords
- hole
- bushing
- mounting hole
- bent axle
- positioning sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention discloses a kind of crankshaft end-face drilling connecting screw hole accessory, including bushing plate, the side of the bushing plate is fixed with circumferentially positioned plate, the bushing plate is a cylindrical diskware, in bushing plate middle part machining crankshafts fixing hole, bent axle fixing hole cooperates with crankshaft end journal size, processes one group of drill bushing mounting hole on concentric position with bent axle fixing hole, drill bushing is arranged in described drill bushing mounting hole, and drill bushing endoporus coordinates with drill bit；Bushing plate opposite side sets clamp system mounting hole, the locating surface of positioning sleeve and the locating surface of gripping sleeve and crankshaft end journal contact in pinching screw clamping process.The present invention is simple in construction, and manufacture is easy, and use is easy to operate, service life length, and machining accuracy is high.
Description
Technical field
The present invention relates to mechanical field, specifically a kind of drilling accessory.
Background technology
The end face connecting screw hole status requirement of bent axle is very high, because this is related to the working condition of engine, therefore, such as
What ensures that precision when connecting screw hole is processed is a problem of those skilled in the art have a headache very much；Existing processing accessory is such as
Shown in Figure 10-Figure 12, including bushing plate 4, the side of bushing plate 4 set circumferentially positioned plate 1, the welding symmetrical above and below of bushing plate right side
Two screw bases 11, unthreaded hole are drilled among screw base above, screw base below is drilled with screwed hole, and pinching screw 2 is from above
Screw base unthreaded hole in pass through, screw in following screw base screwed hole.Bushing plate is just above according to the pitch circle size of design requirement
And Angular Dimension installs one group of drill bushing.Bushing plate is a cylindrical diskware, processes a bent axle in bushing plate middle part and fixes
Hole K, bent axle fixing hole K cooperate with crankshaft end journal size, process one group of brill on concentric position with bent axle fixing hole K
Mounting hole is covered, one group of drill bushing of installation is coordinated in drill bushing mounting hole, drill bushing endoporus coordinates with drill bit, for determining bit location
Position, circumferential slot 13 is provided with bushing plate middle part, axial groove 12 is provided with front side of circumferential slot, welding one is circumferential fixed on the left of bushing plate
Position plate 1 is circumferentially positioned for crankshaft end-face drilling connecting screw hole accessory in process, by pinching screw, connects crankshaft end-face
Screw drilling accessory is connect to fix with crankshaft end axle journal.
During use first by bent axle fixing hole K load crankshaft end axle journal at and pretension.Then bent axle is placed on and debugged
Fixture in suitable position and clamp, make circumferentially positioned plate around crankshaft center line rotation crankshaft end-face drilling connecting screw hole accessory
Suitable position is gone to, rotating pinching screw 2 makes crankshaft end-face drilling connecting screw hole accessory be fixed on one with crankshaft end axle journal
Rise, start to process.
The crankshaft end-face drilling connecting screw hole accessory of this structure is circumferential because bushing plate middle part is provided with circumferential slot 13
Axial groove 12 is provided with front side of groove, bent axle fixing hole K is easily deformed during this hatch frame use, influences crankshaft end-face connection
Screw drilling accessory loads at crankshaft end axle journal, therefore service life is short；Deformed in this hatch frame clamping process random
Rule, influence crankshaft end-face connecting screw hole positional precision after processing；In addition, this kind of clamping structure employs pinching screw, spiral shell is clamped
Nail is acted in the rectilinear direction of pinching screw by bushing plate come the neck of fixed crankshaft, clamping force, is a kind of linear pattern folder
Tightly, and there are cumulative errors, therefore, the structure precision is relatively low.
The content of the invention
To improve machining accuracy, ensure the accurate of processing dimension, it is high it is an object of the invention to provide a kind of positioning precision, adopt
With the fixed form that face pressure is tight, less drilling accessory is deformed, concrete technical scheme is as follows：
Crankshaft end-face drilling connecting screw hole accessory, including bushing plate, the side of the bushing plate are fixed with circumferentially positioned plate,
The bushing plate is a cylindrical diskware, in bushing plate middle part machining crankshafts fixing hole, bent axle fixing hole and crankshaft end
Portion's journal size cooperates, and processes one group of drill bushing mounting hole on concentric position with bent axle fixing hole, and drill bushing is arranged on described
Drill bushing mounting hole in, drill bushing endoporus and drill bit coordinate；Bushing plate opposite side sets clamp system mounting hole, the clamp system
Positioning sleeve is housed above mounting hole, gripping sleeve is housed below, unthreaded hole is drilled among positioning sleeve, is threaded among gripping sleeve
Spring is housed among hole, positioning sleeve and gripping sleeve, pinching screw passes through from the unthreaded hole of positioning sleeve above, passes through the bullet of centre
Spring, screw in following gripping sleeve screwed hole；Clamp system mounting hole intersects with bent axle fixing hole；Equipped with guiding spiral shell before bushing plate
Nail, the axis of guide of guider screw front end coordinates with the locating slot of positioning sleeve and gripping sleeve realizes that positioning sleeve and gripping sleeve move forward and backward
During do not rotate；The locating surface of the locating surface of positioning sleeve and gripping sleeve and crankshaft end axle in pinching screw clamping process
Neck contacts.
To ensure the homogeneity of size, after the pre- allowance of bent axle fixing hole machines, clamp system mounting hole is reprocessed, so
Coordinate one mandrel of installation in clamp system mounting hole afterwards, then complete machining crankshafts fixing hole, mandrel is taken out by drawing
Positioning sleeve and gripping sleeve are processed into, to ensure the locating surface of positioning sleeve, the locating surface of gripping sleeve and clamp system installation bore dia
Size is identical.
The present invention is simple in construction, and manufacture is easy, and use is easy to operate, service life length, and machining accuracy is high.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is Fig. 1 A-A views；
Fig. 3 is Fig. 1 B-B views；
Fig. 4 is Fig. 1 top view；
Fig. 5 is Fig. 1 D-D views；
Fig. 6 is Fig. 1 left view；
Fig. 7 is Fig. 1 X-X views；
Fig. 8 is Fig. 1 Y-Y views；
Fig. 9 is Fig. 4 C-C views；
Figure 10 is the front view of prior art；
Figure 11 is Figure 10 top view；
Figure 12 is Figure 11 C-C views.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings, and as shown in Fig. 1-Fig. 9, the present invention includes bushing plate 4, the bushing plate
4 side is fixed with circumferentially positioned plate 1, and the bushing plate 4 is a cylindrical diskware, is processed in the middle part of bushing plate 4 bent
Axle fixing hole K, bent axle fixing hole K cooperate with crankshaft end journal size, are processed with bent axle fixing hole K on concentric position
One group of drill bushing mounting hole, drill bushing 3 are arranged in described drill bushing mounting hole, and the endoporus of drill bushing 3 coordinates with drill bit；Bushing plate 4 is another
Side sets clamp system mounting hole, and positioning sleeve 5 is housed above the clamp system mounting hole, gripping sleeve 6 is housed below, positions
Be drilled with unthreaded hole among set 5, be threaded hole among gripping sleeve 6, positioning sleeve and gripping sleeve centre are equipped with spring 9, pinching screw 2 from
Passed through in the unthreaded hole of positioning sleeve 5 above, by the spring 9 of centre, screw in following gripping sleeve screwed hole；Clamp system is installed
Intersect with bent axle fixing hole K in hole；Bushing plate 4 above be equipped with guider screw 7, the axis of guide and positioning sleeve of the front end of guider screw 7 and
The locating slot 8 of gripping sleeve, which coordinates, realizes that positioning sleeve 5 and gripping sleeve 6 do not rotate during movable；Pinching screw 2 clamps
During the locating surface F of positioning sleeve and locating surface G and the crankshaft end journal contact of gripping sleeve.
To ensure the homogeneity of size, after the pre- allowances of bent axle fixing hole K machine, clamp system mounting hole is reprocessed,
Then coordinate one mandrel of installation in clamp system mounting hole, then complete machining crankshafts fixing hole K, mandrel is taken out will by drawing
Ask and be processed into positioning sleeve 5 and gripping sleeve 6, to ensure that the locating surface F of positioning sleeve, the locating surface G of gripping sleeve and clamp system are installed
Hole K diameter size is identical.
The present invention in use, first by bent axle fixing hole K load crankshaft end axle journal at and pretension.Then bent axle is placed on
Suitable position and clamped in the fixture debugged, make circumference around crankshaft center line rotation crankshaft end-face drilling connecting screw hole accessory
Location-plate goes to suitable position, and rotating pinching screw makes positioning sleeve and gripping sleeve be approached to centre, the locating surface F of positioning sleeve,
The locating surface G of gripping sleeve is in close contact with crankshaft end axle journal and realizes clamping.
The present invention has abandoned only being positioned by bent axle fixing hole for prior art, and bent axle fixing hole due to by
Active force and the external force of clamp system and deform, and then the defects of influence precision, employ positioning sleeve, the gripping sleeve of clamp system
And bent axle fixing hole positions jointly, and the positioning sleeve of clamp system, gripping sleeve reduce accumulation directly with bent axle neck contacts
Error.
Claims (2)
1. crankshaft end-face drilling connecting screw hole accessory, it is characterised in that：Including bushing plate, the side of the bushing plate is fixed with week
To location-plate, the bushing plate is a cylindrical diskware, in bushing plate middle part machining crankshafts fixing hole, bent axle fixing hole
Cooperated with crankshaft end journal size, process one group of drill bushing mounting hole, drill bushing peace on concentric position with bent axle fixing hole
In described drill bushing mounting hole, drill bushing endoporus coordinates with drill bit；Bushing plate opposite side sets clamp system mounting hole, described
Positioning sleeve is housed above clamp system mounting hole, gripping sleeve is housed below, unthreaded hole is drilled among positioning sleeve, is set among gripping sleeve
Screwed hole is put, spring is housed among positioning sleeve and gripping sleeve, pinching screw passes through from the unthreaded hole of positioning sleeve above, in
Between spring, screw in following gripping sleeve screwed hole；Clamp system mounting hole intersects with bent axle fixing hole；It is equipped with before bushing plate
Guider screw, the axis of guide of guider screw front end coordinates with the locating slot of positioning sleeve and gripping sleeve realize positioning sleeve and gripping sleeve before
Do not rotated in moving process afterwards；The locating surface of positioning sleeve and the locating surface of gripping sleeve and bent axle in pinching screw clamping process
End journal contact.
2. crankshaft end-face drilling connecting screw hole accessory according to claim 1, it is characterised in that：The pre- allowance of bent axle fixing hole
After machining, clamp system mounting hole is reprocessed, then coordinates one mandrel of installation in clamp system mounting hole, then completes to add
Work bent axle fixing hole, mandrel is taken out and is processed into positioning sleeve and gripping sleeve by drawing, to ensure the locating surface of positioning sleeve, folder
The locating surface of tight set is identical with clamp system mounting hole diameter dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610671355.2A CN106181476B (en) | 2016-08-16 | 2016-08-16 | Crankshaft end-face drilling connecting screw hole accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610671355.2A CN106181476B (en) | 2016-08-16 | 2016-08-16 | Crankshaft end-face drilling connecting screw hole accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106181476A CN106181476A (en) | 2016-12-07 |
| CN106181476B true CN106181476B (en) | 2018-03-13 |
Family
ID=57522279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610671355.2A Active CN106181476B (en) | 2016-08-16 | 2016-08-16 | Crankshaft end-face drilling connecting screw hole accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106181476B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518384B (en) * | 2020-12-21 | 2024-05-14 | 北京北方车辆集团有限公司 | Special type vehicle crank arm positioning hole drilling clamp |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10034776B4 (en) * | 2000-07-18 | 2009-09-10 | Mag Maintenance Technologies Gmbh | Device for producing oblique deep hole drillings in metallic workpieces with a convex surface |
| CN101966602B (en) * | 2010-07-30 | 2011-12-14 | 天润曲轴股份有限公司 | Drilling jig device for drilling stepped shaft end hole |
| CN201969925U (en) * | 2011-03-18 | 2011-09-14 | 天津赛瑞机器设备有限公司 | Drilling jig used for machining flanges |
| CN203197321U (en) * | 2012-11-29 | 2013-09-18 | 南车洛阳机车有限公司 | Drilling jig auxiliary device for crankshaft flange hole of diesel engine |
| CN202984748U (en) * | 2013-01-08 | 2013-06-12 | 湘煤立达矿山装备股份有限公司 | Drill jig for machining oil distribution shaft of hydraulic motor |
| CN204381893U (en) * | 2014-11-24 | 2015-06-10 | 重庆长安工业(集团)有限责任公司 | Axle class pin-and-hole repairs fixture |
| CN206047659U (en) * | 2016-08-16 | 2017-03-29 | 辽宁五一八内燃机配件有限公司 | Crankshaft end-face drilling connecting screw hole accessory |
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2016
- 2016-08-16 CN CN201610671355.2A patent/CN106181476B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106181476A (en) | 2016-12-07 |
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