CN203592175U - Drilling tool suitable for crankshaft gear - Google Patents
Drilling tool suitable for crankshaft gear Download PDFInfo
- Publication number
- CN203592175U CN203592175U CN201320735150.8U CN201320735150U CN203592175U CN 203592175 U CN203592175 U CN 203592175U CN 201320735150 U CN201320735150 U CN 201320735150U CN 203592175 U CN203592175 U CN 203592175U
- Authority
- CN
- China
- Prior art keywords
- base
- locating
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses a drilling tool suitable for a crankshaft gear. The right end face of a base is fixed to the left board face of a vertical board and a horizontal hole is formed in the upper portion of the vertical board; the left end portion of a locating rod is a conic section, the large-diameter section in the middle of the locating rod penetrates through the horizontal hole of the vertical board, and the small-diameter section of the locating rod is movably sleeved with a spring and a locating sleeve; a locating post is vertically fixed to the left portion of the base and the small-diameter section at the top of the locating post is sleeved with a drilling sleeve installation board; the left end and the right end of the drilling sleeve installation board are respectively provided with a vertical hole and a drilling sleeve is arranged in each vertical hole; a locating pin is provided and a locating pin hole is vertically formed in the middle, corresponding to the locating pin, of the left side of the locating post. According to the drilling tool, a twist drill is located and guided through the drilling sleeves, so that the form and location tolerance of the locating pin hole in the crankshaft gear is guaranteed; in the process of machining, secondary clamping and locating of the crankshaft gear are not needed, so that clamping is convenient, the clamping accuracy is improved, and the form and location tolerance of the locating pin hole in the crankshaft gear is further guaranteed.
Description
Technical field
The utility model belongs to frock field, specifically, relates 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, work 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.
Utility model content
Technical problem to be solved in the utility model 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.
The technical solution of the utility model 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, have about one lateral aperture connecting on riser (2) top, 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, the aperture difference of this two drill bushings (8) centre bore in each vertical hole;
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).
When 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 stretch in the less drill bushing in aperture (8) boring flower, 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 stretch in the larger drill bushing in aperture (8) boring flower, 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.
Connect for the ease of installing, 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 utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, a kind of drilling tool that is applicable to crankshaft toothed wheel, is mainly made up 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 use, and this base 1 top is up-small and down-big two-part multidiameter structure, and when 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.Have about one lateral aperture connecting on riser 2 tops, 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, the aperture difference of these two drill bushing 8 centre bores.And the less drill bushing 8 in aperture uses in the time of boring, and the larger drill bushing 8 in aperture uses in the time of 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 utility model; not take the utility model as restriction; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. one kind is applicable to the drilling tool of 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, have about one lateral aperture connecting on riser (2) top, 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, the aperture difference of this two drill bushings (8) centre bore in each vertical hole;
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. the drilling tool that is applicable to according to claim 1 crankshaft toothed wheel, 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. the drilling tool that is applicable to according to claim 1 crankshaft toothed wheel, 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 |
|---|---|---|---|
| CN201320735150.8U CN203592175U (en) | 2013-11-19 | 2013-11-19 | Drilling tool suitable for crankshaft gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735150.8U CN203592175U (en) | 2013-11-19 | 2013-11-19 | Drilling tool suitable for crankshaft gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203592175U true CN203592175U (en) | 2014-05-14 |
Family
ID=50673122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320735150.8U Withdrawn - After Issue CN203592175U (en) | 2013-11-19 | 2013-11-19 | Drilling tool suitable for crankshaft gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203592175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639487A (en) * | 2013-11-19 | 2014-03-19 | 重庆市星极齿轮有限责任公司 | Drilling tool applied to crankshaft gear |
-
2013
- 2013-11-19 CN CN201320735150.8U patent/CN203592175U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639487A (en) * | 2013-11-19 | 2014-03-19 | 重庆市星极齿轮有限责任公司 | Drilling tool applied to crankshaft gear |
| CN103639487B (en) * | 2013-11-19 | 2015-10-21 | 重庆市星极齿轮有限责任公司 | A kind of drilling tool being applicable to crankshaft toothed wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103639487B (en) | A kind of drilling tool being applicable to crankshaft toothed wheel | |
| CN204195300U (en) | Body cover auxiliary bore hole frock | |
| CN205968179U (en) | Tooth lathe is attacked in multiaxis drilling | |
| CN203592175U (en) | Drilling tool suitable for crankshaft gear | |
| CN203304636U (en) | Drill jig tool of lug installation hole of inclined oil cylinder | |
| CN210649629U (en) | Processing frock of coupling screw | |
| CN203265808U (en) | Tapping clamp | |
| CN202763490U (en) | Inclined hole machining jig | |
| CN203636438U (en) | Clamp used for drilling hole in end face of one-piece camshaft | |
| CN204122807U (en) | A kind of drilling jig | |
| CN204430367U (en) | Simple laser based on Magnetic gauge stand is auxiliary to heart drilling equipment | |
| CN103707083A (en) | Spring pin telescoping mechanism | |
| CN203765325U (en) | Milling machine supporting frame milling tool | |
| CN204135409U (en) | Motor mount drilling tool | |
| CN204221394U (en) | The processing tool of motor casing | |
| CN205200598U (en) | Novel tubular product drilling device | |
| CN205043206U (en) | Multi -shaft drill machine | |
| CN103433533B (en) | Microscope hinge drill jig | |
| CN201913283U (en) | Tool for machining thin and long damping hole of pump body | |
| CN203649477U (en) | Drilling clamp for extension box | |
| CN203062339U (en) | Clamp for drilling hole of steel tube | |
| CN105880749A (en) | A drilling machine for the formation of automobile balance shaft threaded holes | |
| CN204397382U (en) | A kind of drill jig | |
| CN203236013U (en) | Novel drill jig for circulating hole of upper bearing pedestal of shield pump | |
| CN203711931U (en) | High-strength gear box fix-in-one special fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140514 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |