CN202934357U - Chain wheel jig fixture - Google Patents
Chain wheel jig fixture Download PDFInfo
- Publication number
- CN202934357U CN202934357U CN 201220557446 CN201220557446U CN202934357U CN 202934357 U CN202934357 U CN 202934357U CN 201220557446 CN201220557446 CN 201220557446 CN 201220557446 U CN201220557446 U CN 201220557446U CN 202934357 U CN202934357 U CN 202934357U
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- CN
- China
- Prior art keywords
- location
- plate
- positioning plate
- sprocket wheel
- right sides
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a chain wheel jig fixture. At least one positioning drill hole and at least one exhaust drill hole are formed in an upper positioning plate; two lugs are arranged on each of the left side and the right side of the upper positioning plate and a lower positioning plate; screws are arranged on the left side and the right side of the upper positioning plate; the upper end of each of the two screws is positioned between the two lugs on the right side or the left side of the upper positioning plate respectively; fixing pins penetrate through the upper parts of the two screws and horizontally penetrate through the two lugs on each of the left side and the right side of the upper positioning plate; the lower end of each of the two screws extends out of the two lugs on the right side or the left side of the lower positioning plate; the lower ends of the screws are in threaded connection with a compression nut; and the compression nut is positioned under the lower positioning plate. According to the utility model, the exhaust hole and the positioning hole are drilled in one fixture, the position accuracy of the exhaust hole and the positioning hole is improved; besides, the screws are used for clamping the upper positioning plate and the lower positioning plate, the clamping efficiency is improved; and the chain wheel jig fixture has the characteristics of novel structure, low cost and the like.
Description
Technical field
The utility model relates to a kind of gear fixture, particularly relates to a kind of timing sprocket and bores the fixture that exhaust, locating hole are used.
Background technology
On the timing drive sprocket, need to bore steam vent and locating hole at assigned address, the angle that angle center between steam vent and locating hole and workpiece centre line form has strict restriction, in the middle of operation in the past, all that brill steam vent and brill locating hole are divided into to two procedures, the subdrilling steam vent, then transducer set fixture, bore again locating hole, so just need to carry out resetting to workpiece, just likely produce location inaccurate, thereby cause the position, hole and the angle that come outbreak out not to meet the workpiece requirement.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of sprocket wheel drilling jig gripper that can bore steam vent and locating hole simultaneously and not reduce precision.
The technical solution of the utility model is as follows: a kind of sprocket wheel drilling jig gripper, comprise lower location-plate (1), and the upper location-plate (2) paralleled with lower location-plate (1), run through and be connected with locating dowel (3) on described upper location-plate (2) and lower location-plate (1), this locating dowel (3) is stretched out the top of location-plate (2) upper surface and is locked by hold-down nut (7), offer at least one location drilling (5) and at least one exhaust boring (6) on upper location-plate (2), the left and right sides of described upper location-plate (2) and lower location-plate (1) is provided with two projections (10), be provided with screw rod (11) in upper location-plate (2) left and right sides, the upper end of described two screw rods (11) lays respectively between two projections (10) of location-plate (2) left and right sides, all be equipped with steady pin (12) on the top of two screw rods (11), this steady pin (12) level is on two projections (10) of upper location-plate (2) left and right sides, the lower end of two described screw rods (11) respectively from stretch out between two projections (10) of the upper left and right sides of location-plate (1), and the lower end of two screw rods (11) all is positioned at the lower surface of lower location-plate (1), the lower end of this screw rod (11) clamp nut (14) that has been threaded, described clamp nut (14) is positioned at the below of lower location-plate (1).
While adopting the fixture of above structure to be clamped, first unclamp and take off clamp nut, then pull out location-plate, workpiece centre is enclosed within on locating dowel, then upper location-plate and workpiece all are pressed on lower location-plate, make workpiece between upper location-plate and lower location-plate, then tighten clamp nut, location-plate and the compacted nut of lower location-plate are forced together.After treating the fixture clamping, can on same fixture, to location drilling and exhaust boring, be processed, without resetting, improved precision.
In order better to discharge drilling cuttings, offer the location chip-removal hole (8) corresponding with location drilling (5) on lower location-plate (1), also offer the exhaust chip-removal hole (9) corresponding with exhaust boring (6) on lower location-plate (1).
All be installed with boring cover (15) in described location drilling (5) and location chip-removal hole (8), drill bit passes from the boring cover, can prevent that drill bit from wandering off.
Be evenly distributed with at least three legs (4) on the angle of upper location-plate (2), the bottom of described leg (4) is positioned on same level, this leg (4) runs through location-plate (2), and the bottom of this leg (4) is by locking nut (13) locking, and the upper surface of described locking nut (13) is close to the lower surface of location-plate (2); Offer the arc notch (1a) corresponding with leg (4) on the angle of lower location-plate (1), the lower surface of lower location-plate (1) is stretched out from arc notch (1a) in the lower end of described leg (4).In use, can directly fixture be placed on platform by leg, also guarantee levelness.
In order to limit the upper and lower displacement of locating dowel (3), the middle part of described locating dowel (3) is provided with annular boss (3a), and this annular boss (3a) is positioned between location (2) and lower location-plate (1).
In order to limit the swing offset between upper location-plate and lower location, jointly be equipped with alignment pin (17) on described upper location-plate (2) and lower location-plate (1), the upper end of this alignment pin (17) is locked by nut (18).
Be equipped with fastening screw (16) on described upper location-plate (2), the bottom of this fastening screw (16) is positioned between location-plate (2) and lower location-plate (1).In use, this fastening screw is positioned at the teeth groove of workpiece, can limit horizontally rotating of workpiece.
Beneficial effect: the utility model can bore steam vent and locating hole on same fixture, improved the positional precision of steam vent and locating hole, adopt screw rod to be clamped upper and lower location-plate simultaneously, improved clamping efficiency, also there are novel structure, the characteristics such as with low cost.
The accompanying drawing explanation
Fig. 1 is cutaway view of the present utility model.
The top view that Fig. 2 is Fig. 1.
The A that Fig. 3 is Fig. 1 is to view.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Fig. 1, Fig. 2, shown in Fig. 3, the utility model is by lower location-plate 1, upper location-plate 2, locating dowel 3, leg 4, location drilling 5, exhaust boring 6, hold-down nut 7, location chip-removal hole 8, exhaust chip-removal hole 9, projection 10, screw rod 11, steady pin 12, locking nut 13, clamp nut 14, boring cover 15, fastening screw 16, the parts such as alignment pin 17 and nut 18 form, described lower location-plate 1 and lower location-plate 1 parallel, run through and be connected with locating dowel 3 at upper location-plate 2 and lower location-plate 1 center, this locating dowel 3 is stretched out the top of location-plate 2 upper surfaces by hold-down nut 7 lockings, the middle part of described locating dowel 3 is provided with annular boss 3a, this annular boss 3a is between upper location 2 and lower location-plate 1.Offer at least one location drilling 5 and at least one exhaust boring 6 at the middle part of upper location-plate 2, in an embodiment, offer four location drillings 5 and two exhaust borings 6 on upper location-plate 2, offer the location chip-removal hole 8 corresponding with location drilling 5 on lower location-plate 1, on lower location-plate 1, also offer and the exhaust 6 corresponding exhaust chip-removal holes 9 of holing, at described location drilling 5 and the interior boring cover 15 that all is installed with of location chip-removal hole 8.The left and right sides of described upper location-plate 2 and lower location-plate 1 is provided with two projections 10, between the projection 10 of two of 2 left and right sides of upper location-plate between the vertical center line of clip slot and two of 1 left and right sides of lower location-plate projection 10 the vertical center line of clip slot on the same straight line, be provided with steady pin 12 in upper location-plate 2 left and right sides, described steady pin 12 levels are on two projections 10 of upper location-plate 2 left and right sides, the equal kink in the middle part of two steady pins 12 has screw rod 11, one end of described two screw rods 11 lays respectively between two projections 10 of location-plate 2 left and right sides, the other end of screw rod 11 respectively from stretch out the lower surface of lower location-plate 1 on location-plate 1 between two projections 10 of the left and right sides, the lower end of this screw rod 11 clamp nut 14 that has been threaded, described clamp nut 14 is positioned at the below of lower location-plate 1.Be evenly distributed with at least three legs 4 on the angle of upper location-plate 2, in the present embodiment, be evenly distributed with four legs 4 on four angles of upper location-plate 2, the bottom of described leg 4 is positioned on same level, this leg 4 runs through location-plate 2, and the bottom of this leg 4 is by locking nut 13 lockings, and the upper surface of described locking nut 13 is close to the lower surface of location-plate 2; Offer the arc notch 1a corresponding with leg 4 on the angle of lower location-plate 1, the lower surface of lower location-plate 1 is stretched out in the lower end of described leg 4 from arc notch 1a.Jointly be equipped with alignment pin 17 on described upper location-plate 2 and lower location-plate 1, nut 18 locking that is fixed of the upper end of this alignment pin 15.Be equipped with fastening screw 16 on described upper location-plate 2, the bottom of this fastening screw 16 is between upper location-plate 2 and lower location-plate 1.Operation principle is as follows:
First unclamp and take off clamp nut 14, then pull out location-plate 2, workpiece centre is enclosed within on locating dowel 3, then upper location-plate 2 and workpiece all are pressed on lower location-plate 1, make workpiece between upper location-plate 2 and lower location-plate 1, make the teeth groove of workpiece withstand alignment pin 17 simultaneously, then tighten clamp nut 14, location-plate and the compacted nut 14 of lower location-plate are forced together.
The foregoing is only preferred embodiment of the present utility model; not take the utility model as restriction; all any modifications of doing, be equal to the quantity etc. of replacing and improving as change dial framework and benchmark post, within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Claims (7)
1. a sprocket wheel drilling jig gripper, comprise lower location-plate (1), and the upper location-plate (2) paralleled with lower location-plate (1), run through and be connected with locating dowel (3) on described upper location-plate (2) and lower location-plate (1), this locating dowel (3) is stretched out the top of location-plate (2) upper surface and is locked by hold-down nut (7), it is characterized in that: offer at least one location drilling (5) and at least one exhaust boring (6) on upper location-plate (2), the left and right sides of described upper location-plate (2) and lower location-plate (1) is provided with two projections (10), be provided with screw rod (11) in upper location-plate (2) left and right sides, the upper end of described two screw rods (11) lays respectively between two projections (10) of location-plate (2) left and right sides, all be equipped with steady pin (12) on the top of two screw rods (11), this steady pin (12) level is on two projections (10) of upper location-plate (2) left and right sides, the lower end of two described screw rods (11) respectively from stretch out between two projections (10) of the upper left and right sides of location-plate (1), and the lower end of two screw rods (11) all is positioned at the lower surface of lower location-plate (1), the lower end of this screw rod (11) clamp nut (14) that has been threaded, described clamp nut (14) is positioned at the below of lower location-plate (1).
2. sprocket wheel drilling jig gripper according to claim 1, it is characterized in that: offer the location chip-removal hole (8) corresponding with location drilling (5) on lower location-plate (1), also offer the exhaust chip-removal hole (9) corresponding with exhaust boring (6) on lower location-plate (1).
3. sprocket wheel drilling jig gripper according to claim 2, is characterized in that: in described location drilling (5) and location chip-removal hole (8), all be installed with boring cover (15).
4. sprocket wheel drilling jig gripper according to claim 3, it is characterized in that: be evenly distributed with at least three legs (4) on the angle of upper location-plate (2), the bottom of described leg (4) is positioned on same level, this leg (4) runs through location-plate (2), and the bottom of this leg (4) is by locking nut (13) locking, and the upper surface of described locking nut (13) is close to the lower surface of location-plate (2); Offer the arc notch (1a) corresponding with leg (4) on the angle of lower location-plate (1), the lower surface of lower location-plate (1) is stretched out from arc notch (1a) in the lower end of described leg (4).
5. sprocket wheel drilling jig gripper according to claim 1, it is characterized in that: the middle part of described locating dowel (3) is provided with annular boss (3a), and this annular boss (3a) is positioned between location (2) and lower location-plate (1).
6. sprocket wheel drilling jig gripper according to claim 1, it is characterized in that: jointly be equipped with alignment pin (17) on described upper location-plate (2) and lower location-plate (1), the upper end of this alignment pin (17) is locked by nut (18).
7. sprocket wheel drilling jig gripper according to claim 1, it is characterized in that: be equipped with fastening screw (16) on described upper location-plate (2), the bottom of this fastening screw (16) is positioned between location-plate (2) and lower location-plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557446 CN202934357U (en) | 2012-10-29 | 2012-10-29 | Chain wheel jig fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557446 CN202934357U (en) | 2012-10-29 | 2012-10-29 | Chain wheel jig fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934357U true CN202934357U (en) | 2013-05-15 |
Family
ID=48318616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220557446 Expired - Fee Related CN202934357U (en) | 2012-10-29 | 2012-10-29 | Chain wheel jig fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480892A (en) * | 2013-08-30 | 2014-01-01 | 安徽池州家用机床股份有限公司 | Drill jig device |
| CN104942625A (en) * | 2014-03-27 | 2015-09-30 | 南京泉峰汽车精密技术有限公司 | Positioning device suitable for machining chain wheel |
-
2012
- 2012-10-29 CN CN 201220557446 patent/CN202934357U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480892A (en) * | 2013-08-30 | 2014-01-01 | 安徽池州家用机床股份有限公司 | Drill jig device |
| CN104942625A (en) * | 2014-03-27 | 2015-09-30 | 南京泉峰汽车精密技术有限公司 | Positioning device suitable for machining chain wheel |
| CN104942625B (en) * | 2014-03-27 | 2017-12-15 | 南京泉峰汽车精密技术股份有限公司 | Positioner suitable for processing sprocket wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20141029 |
|
| EXPY | Termination of patent right or utility model |