CN103639487A - Drilling tool applied to crankshaft gear - Google Patents
Drilling tool applied to crankshaft gear Download PDFInfo
- Publication number
- CN103639487A CN103639487A CN201310585194.1A CN201310585194A CN103639487A CN 103639487 A CN103639487 A CN 103639487A CN 201310585194 A CN201310585194 A CN 201310585194A CN 103639487 A CN103639487 A CN 103639487A
- Authority
- CN
- China
- Prior art keywords
- base
- drill bushing
- locating dowel
- backstay
- drilling tool
- 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.)
- Granted
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a drilling tool applied to a crankshaft gear. The right end face of a base is fixed to the left face of a vertical plate. A horizontal hole is formed in the upper portion of the vertical plate. The left end of a positioning rod is a circular cone section, the large-diameter section in the middle of the positioning rod penetrates in the horizontal hole in the vertical plate, the small-diameter section of the positioning rod is movably sleeved with a spring and a positioning sleeve, a positioning column is vertically fixed to the left portion of the base, the small-diameter section on the top of the positioning column is sleeved with a drill bushing installation plate, the left end and the right end of the drill bushing installation plate are respectively provided with a vertical hole, and a drill bushing is arranged in each vertical hole. A positioning pin is arranged, and the middle on the left side of the positioning column is vertically provided with a positioning pin hole corresponding to the positioning pin. According to the drilling tool applied to the crankshaft gear, a drill bit is positioned and oriented through the drilling bushing, so that the form and location tolerance of the positioning pin hole in the crankshaft gear is ensured, the crankshaft gear does not need to be clamped and positioned twice during machining, clamping is convenient, the clamping precision is improved, and the form and location tolerance of the positioning pin hole in the crankshaft gear can be further ensured.
Description
Technical field
The invention belongs to frock field, specifically, relate in particular to a kind of drilling tool that is applicable to crankshaft toothed wheel.
Background technology
As shown in Figure 1, crankshaft toothed wheel (being workpiece G) is one of vitals on automobile, has a dowel hole on crankshaft toothed wheel, and this dowel hole is blind hole, and the Geometrical Tolerance Principle of this dowel hole is higher.
Add man-hour, crankshaft toothed wheel is placed on base, in process, need to carry out secondary clamping, location, and adopt drill bit to complete processing through drilling and reaming two procedures.
The defect of existing processing mode is: while 1, working due to drill bit, without drill bushing location, guiding, so be just difficult to guarantee the form and position tolerance of dowel hole on crankshaft toothed wheel; 2, owing to needing to carry out secondary clamping, location in process, so not only processing is inconvenient, inefficiency, and can affect the form and position tolerance of dowel hole on crankshaft toothed wheel, is badly in need of solving above-mentioned technical barrier for this reason.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of drilling tool that is applicable to crankshaft toothed wheel, and wish guarantees the form and position tolerance of dowel hole on crankshaft toothed wheel.
Technical scheme of the present invention is as follows: a kind of drilling tool that is applicable to crankshaft toothed wheel, it is characterized in that: comprise base (1), backstay (3) and alignment pin (9), wherein base (1) top is up-small and down-big two-part multidiameter structure, the left plate face of this base right side and a riser (2) posts and fixes, on riser (2) top, have about one lateral aperture connecting, the path section at this lateral aperture and described base (1) top is contour;
Described backstay (3) left part is the conical section exposing, the large footpath section at this backstay middle part is located in the lateral aperture on described riser (2) top, and in the path section of backstay (3) right part, kink has a spring (4) and a positioning sleeve (5), its medi-spring (4) left end is against on the step surface of backstay (3), and the right-hand member of this spring stretches into the centre bore left part of positioning sleeve (5); The centre bore of described positioning sleeve (5) is two-part shoulder hole left large and right small, and the left side of this positioning sleeve (5) and riser (2) right panel face post and fix;
Described base (1) left part is vertically fixed with a locating dowel (6), this locating dowel top is up-small and down-big two-part multidiameter structure, and in the path section at locating dowel (6) top, be set with a circular drill bushing installing plate (7), this drill bushing installing plate and locating dowel (6) matched in clearance, and the two axial line is on same straight line; Described drill bushing installing plate (7) is positioned at base (1) top, the left and right end of this drill bushing installing plate has a vertical hole, these two vertical holes are symmetrical arranged about described locating dowel (6), and a drill bushing (8) is housed respectively in each vertical hole, and the aperture of this two drill bushings (8) centre bore is different;
The number of described alignment pin (9) is one, and this alignment pin all can pass the centre bore of two described drill bushings (8), and the middle part in described locating dowel (6) left side is to should vertically having a dowel hole (6a) by alignment pin (9).
During boring, first workpiece (G) is sleeved in the path section at described base (1) top, and the conical section of described backstay (3) left part is inserted in the profile of tooth of workpiece (G); Then rotate described drill bushing installing plate (7), and the less drill bushing (8) in aperture is turned to directly over the path section at base (1) top, at this moment described alignment pin (9) is inserted in the larger drill bushing (8) in aperture, insert in the dowel hole (6a) in described locating dowel (6) lower end of this alignment pin (9), after this by boring flower, stretch in the less drill bushing in aperture (8), thereby at the upper primary drilling of workpiece (G).Complete after boring, rotate again described drill bushing installing plate (7), and the larger drill bushing (8) in aperture is turned to directly over the path section at base (1) top, at this moment described alignment pin (9) is inserted in the less drill bushing (8) in aperture, insert in the dowel hole (6a) in described locating dowel (6) lower end of this alignment pin (9), after this by boring flower, stretch in the larger drill bushing in aperture (8), thereby in the upper fraising of workpiece (G), and then obtain the dowel hole on workpiece (G).
Adopt above technical scheme, this drilling tool is positioned, leads boring flower by described drill bushing (8), thereby the form and position tolerance of dowel hole on assurance crankshaft toothed wheel, and add and do not need man-hour crankshaft toothed wheel to carry out secondary clamping, location, be so not only convenient to clamping, improve clamping precision, and can further guarantee the form and position tolerance of dowel hole on crankshaft toothed wheel, and this drilling tool is simple in structure, easy to use, there is good applicability, be suitable for extensively promoting the use.
As preferably, the right part of described backstay (3) has been threaded connection a nut (10).Adopt above structure, we can pull backstay (3) to move right by holding described nut (10), convenient and strength-saving.
For the ease of implementing, in the installing blind of described locating dowel (6) bottom inserted base (1) left part, the two tightly fits in together.
For the ease of installing, connect, described positioning sleeve (5) is fixedly connected with by horizontally disposed screw (11) with riser (2).
Beneficial effect: this drilling tool is positioned, leads boring flower by described drill bushing (8), thereby the form and position tolerance of dowel hole on assurance crankshaft toothed wheel, and add and do not need man-hour crankshaft toothed wheel to carry out secondary clamping, location, so not only be convenient to clamping, improve clamping precision, and can further guarantee the form and position tolerance of dowel hole on crankshaft toothed wheel, and this drilling tool is simple in structure, easy to use, there is good applicability, be suitable for extensively promoting the use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, a kind of drilling tool that is applicable to crankshaft toothed wheel, mainly consists of base 1, riser 2, backstay 3, spring 4, positioning sleeve 5, locating dowel 6, drill bushing installing plate 7, drill bushing 8, alignment pin 9, nut 10 and screw 11.Wherein, described base 1 is directly placed on the workbench of drilling machine while using, and this base 1 top is up-small and down-big two-part multidiameter structure, and during boring, workpiece G is sleeved in the path section at base 1 top.The left plate face laminating of the right side of described base 1 and a riser 2, and be fixed together by horizontally disposed attachment screw 12.On riser 2 tops, have about one lateral aperture connecting, the path section at this lateral aperture and described base 1 top is contour.
The left part of described backstay 3 is conical section, and its middle part is large footpath section, and its right-hand member is path section, and the right part of path section is external thread section.And the conical section of described backstay 3 left parts is exsertion part, this part is for the location, parts of tooth location to workpiece G, and the large footpath section at these backstay 3 middle parts is located in the lateral aperture on described riser 2 tops.And kink has a spring 4 and a positioning sleeve 5 in the path section of above-mentioned backstay 3 right parts, its medi-spring 4 left ends are against on the step surface of backstay 3, and the right-hand member of this spring 4 stretches into the centre bore left part of positioning sleeve 5.The centre bore of described positioning sleeve 5 is two-part shoulder hole left large and right small, the left side of this positioning sleeve 5 and riser 2 right panel face laminatings, and be fixedly connected with by horizontally disposed screw 11.In addition, the right part of described backstay 3 has been threaded connection a nut 10, and this nut 10 can be convenient to pull backstay 3 to the right.
As can be seen from Figure 1, described base 1 left part is vertically fixed with a locating dowel 6, and as preferably, in the installing blind of locating dowel 6 bottom inserted base 1 left parts, the two tightly fits in together.Described locating dowel 6 tops are up-small and down-big two-part multidiameter structure, and in the path section at locating dowel 6 tops, be set with a circular drill bushing installing plate 7, this drill bushing installing plate 7 and locating dowel 6 matched in clearance, and the two axial line is on same straight line.Described drill bushing installing plate 7 is positioned at the top of base 1, the left and right end of this drill bushing installing plate 7 has a vertical hole, these two vertical holes are symmetrical arranged about described locating dowel 6, and in each vertical hole, a drill bushing 8 are housed respectively, and the aperture of these two drill bushing 8 centre bores is different.And the less drill bushing 8 in aperture is used when boring, and the larger drill bushing 8 in aperture is used when fraising.
The number of described alignment pin 9 is one, and this alignment pin 9 all can pass the centre bore of two described drill bushings 8, and the middle part in described locating dowel 6 left sides is to should vertically having a dowel hole 6a by alignment pin 9.
The foregoing is only preferred embodiment of the present invention, not take the present invention as restriction, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a drilling tool that is applicable to crankshaft toothed wheel, it is characterized in that: comprise base (1), backstay (3) and alignment pin (9), wherein base (1) top is up-small and down-big two-part multidiameter structure, the left plate face of this base right side and a riser (2) posts and fixes, on riser (2) top, have about one lateral aperture connecting, the path section at this lateral aperture and described base (1) top is contour;
Described backstay (3) left part is the conical section exposing, the large footpath section at this backstay middle part is located in the lateral aperture on described riser (2) top, and in the path section of backstay (3) right part, kink has a spring (4) and a positioning sleeve (5), its medi-spring (4) left end is against on the step surface of backstay (3), and the right-hand member of this spring stretches into the centre bore left part of positioning sleeve (5); The centre bore of described positioning sleeve (5) is two-part shoulder hole left large and right small, and the left side of this positioning sleeve (5) and riser (2) right panel face post and fix;
Described base (1) left part is vertically fixed with a locating dowel (6), this locating dowel top is up-small and down-big two-part multidiameter structure, and in the path section at locating dowel (6) top, be set with a circular drill bushing installing plate (7), this drill bushing installing plate and locating dowel (6) matched in clearance, and the two axial line is on same straight line; Described drill bushing installing plate (7) is positioned at base (1) top, the left and right end of this drill bushing installing plate has a vertical hole, these two vertical holes are symmetrical arranged about described locating dowel (6), and a drill bushing (8) is housed respectively in each vertical hole, and the aperture of this two drill bushings (8) centre bore is different;
The number of described alignment pin (9) is one, and this alignment pin all can pass the centre bore of two described drill bushings (8), and the middle part in described locating dowel (6) left side is to should vertically having a dowel hole (6a) by alignment pin (9).
2. be applicable to according to claim 1 the drilling tool of crankshaft toothed wheel, it is characterized in that: the right part of described backstay (3) has been threaded connection a nut (10).
3. according to the drilling tool that is applicable to crankshaft toothed wheel described in claim 1 or 2, it is characterized in that: in the installing blind of described locating dowel (6) bottom inserted base (1) left part, the two tightly fits in together.
4. be applicable to according to claim 1 the drilling tool of crankshaft toothed wheel, it is characterized in that: described positioning sleeve (5) is fixedly connected with by horizontally disposed screw (11) with riser (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310585194.1A CN103639487B (en) | 2013-11-19 | 2013-11-19 | A kind of drilling tool being applicable to crankshaft toothed wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310585194.1A CN103639487B (en) | 2013-11-19 | 2013-11-19 | A kind of drilling tool being applicable to crankshaft toothed wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103639487A true CN103639487A (en) | 2014-03-19 |
| CN103639487B CN103639487B (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310585194.1A Active CN103639487B (en) | 2013-11-19 | 2013-11-19 | A kind of drilling tool being applicable to crankshaft toothed wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103639487B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545895A (en) * | 2015-12-25 | 2016-05-04 | 苏州安特实业有限公司 | Block with flange |
| CN106180815A (en) * | 2016-08-15 | 2016-12-07 | 闫冰倩 | A kind of device for equipment gear boring |
| CN106180786A (en) * | 2016-08-15 | 2016-12-07 | 闫冰倩 | A kind of boring method of gear alignment pin control |
| CN112453950A (en) * | 2020-11-10 | 2021-03-09 | 重庆长安工业(集团)有限责任公司 | Encoder gear drilling frock |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2145710A1 (en) * | 2008-07-18 | 2010-01-20 | Klann Spezial-Werkzeugbau GmbH | Device for post-processing a holder borehole for spark plugs |
| CN201399603Y (en) * | 2009-03-01 | 2010-02-10 | 溧阳市科华机械制造有限公司 | Drill plate provided positioning device for drilling slanting oil in intermediate |
| GB2494445A (en) * | 2011-09-09 | 2013-03-13 | Ferro Carbon Entpr Co Ltd | Drill positioning device |
| CN203592175U (en) * | 2013-11-19 | 2014-05-14 | 重庆市星极齿轮有限责任公司 | Drilling tool suitable for crankshaft gear |
-
2013
- 2013-11-19 CN CN201310585194.1A patent/CN103639487B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2145710A1 (en) * | 2008-07-18 | 2010-01-20 | Klann Spezial-Werkzeugbau GmbH | Device for post-processing a holder borehole for spark plugs |
| CN201399603Y (en) * | 2009-03-01 | 2010-02-10 | 溧阳市科华机械制造有限公司 | Drill plate provided positioning device for drilling slanting oil in intermediate |
| GB2494445A (en) * | 2011-09-09 | 2013-03-13 | Ferro Carbon Entpr Co Ltd | Drill positioning device |
| CN203592175U (en) * | 2013-11-19 | 2014-05-14 | 重庆市星极齿轮有限责任公司 | Drilling tool suitable for crankshaft gear |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545895A (en) * | 2015-12-25 | 2016-05-04 | 苏州安特实业有限公司 | Block with flange |
| CN106180815A (en) * | 2016-08-15 | 2016-12-07 | 闫冰倩 | A kind of device for equipment gear boring |
| CN106180786A (en) * | 2016-08-15 | 2016-12-07 | 闫冰倩 | A kind of boring method of gear alignment pin control |
| CN106180786B (en) * | 2016-08-15 | 2018-05-04 | 江苏盛安资源股份有限公司 | A kind of boring method of gear dowel hole |
| CN106180815B (en) * | 2016-08-15 | 2018-09-21 | 盐城恒发精密齿轮有限公司 | A kind of device for equipment gear drilling |
| CN112453950A (en) * | 2020-11-10 | 2021-03-09 | 重庆长安工业(集团)有限责任公司 | Encoder gear drilling frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103639487B (en) | 2015-10-21 |
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