CN203003512U - Precise processing fixture for small adjustable eccentric hole - Google Patents
Precise processing fixture for small adjustable eccentric hole Download PDFInfo
- Publication number
- CN203003512U CN203003512U CN 201220643595 CN201220643595U CN203003512U CN 203003512 U CN203003512 U CN 203003512U CN 201220643595 CN201220643595 CN 201220643595 CN 201220643595 U CN201220643595 U CN 201220643595U CN 203003512 U CN203003512 U CN 203003512U
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- fixture
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- mounting groove
- adjustable eccentric
- precision machining
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Abstract
The utility model relates to a precise processing fixture for a small adjustable eccentric hole. The precise processing fixture comprises a first fixture and a second fixture, wherein the first fixture is a concentric fixture, the first fixture is arranged in a mounting groove which is arranged on the second fixture, the first fixture can radially move in the mounting groove on the second fixture, the two sides of the mounting groove are respectively provided with an adjusting bolt which is used for adjusting the radial mounting eccentricity e of the first fixture, the adjusting bolts are tightened in radial thread holes which are formed in the second fixture, one end of each adjusting bolt is radially jacked on the first fixture by the rotating of the adjusting bolt, and the first fixture is fixedly arranged in the mounting groove on the second fixture. The precise processing fixture has the advantages that the precise processing fixture is suitable for processing the eccentric holes on a lathe, the rigidity of the fixture is good, the processing range is large, and the manufacture cost is low; the total weight is reduced, so the load on a main shaft of a machining tool is reduced, the rigidity of the fixture is improved, and the processing of the eccentric holes of series type parts can be completed; and the structure is simple, the operation is convenient, the higher size precision and the positioning precision are ensured, the adjusting time is reduced, and the productivity is improved.
Description
Technical field
The utility model is a kind of Precision Machining fixture of adjustable eccentric aperture, belongs to the renovation technique of the Precision Machining fixture of adjustable eccentric aperture.
Background technology
The workpiece that eccentric structure is arranged is added to use eccentric fixture man-hour.The design of eccentric orfice workpiece machining clamp is processing eccentric orfice part on lathe, and common way is to adopt common 4 dog chuck folder 3 dog chuck structures.This poor structure rigidity, the range of work is narrow, and efficient is low, and cost is high.Rapidoprint, the eccentric factors such as hanging structure reduce the machining accuracy rank; The position of positioning datum and complex structure in addition, clamping force easy damaged workpiece.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and the higher dimensional accuracy of a kind of assurance and positioning accuracy is provided, and reduces the adjustment time, the Precision Machining fixture of the adjustable eccentric aperture of boosting productivity.The utility model is reasonable in design, and is simple in structure, easy to operate.
the technical solution of the utility model is: the Precision Machining fixture of adjustable eccentric aperture of the present utility model, include the first fixture and the second fixture, wherein the first fixture is concentric fixture, the first fixture is arranged in the set mounting groove of the second fixture, and the first fixture can radially move in the set mounting groove of the second fixture, the both sides of mounting groove are respectively equipped with the radially setting-up eccentricity that can adjust the first fixture apart from the adjustment bolt of e, adjusting bolt twists solid in the radially set screwed hole of the second fixture, and adjusting bolt by rotation can make an end of adjusting bolt radially withstand on the first fixture, the first fixture is fixed in the mounting groove of the second fixture.
Above-mentioned the first fixture is T-shaped, and the set mounting groove of the second fixture should be T-shaped groove mutually, and the first fixture is arranged in the set T-shaped groove of the second fixture.
The geometric center of the adjustment bolt that above-mentioned mounting groove both sides are respectively equipped with is on same vertical line.
The two ends of above-mentioned adjustment bolt are respectively equipped with screw thread, are polished rod between the screw thread of two ends, and the junction of two ends screw thread and polished rod is equipped with fluting, and the spacing between the fluting of two ends is not the integral multiple of pitch.
Be provided with the rotary indicator groove on above-mentioned adjustment bolt, the surperficial correspondence of the second fixture is provided with the rotary label scale.
The end face of above-mentioned the first fixture is provided with the first fixture graduation mark, and the end face of the second fixture is provided with the second fixture graduation mark.
The precision of the rotary label scale that above-mentioned the second fixture is set is 0.02mm; The precision of above-mentioned the first fixture graduation mark and the second fixture graduation mark is 0.05mm.
Above-mentioned eccentric distance e is between 0 to 2mm.
The degree of regulation of above-mentioned eccentric distance e is 0.02mm.
The utility model is applicable to process eccentric orfice owing to adopting the adjustable structure of eccentric throw on lathe, this fixture good rigidly, and the range of work is large, low cost of manufacture; The clamp for machining of adjustable eccentric hole precision adopts eccentric chuck to replace chuck, has reduced the one-level connection, and the gross weight of the utility model fixture alleviates, thereby has reduced the load of machine tool chief axis, has improved the rigidity of fixture.The utility model is adjusted eccentric throw owing to adopting the screw rotation of homemade up and down, makes the fixture of the eccentric hole type parts of processing that originally is only applicable to single eccentric throw can complete the eccentric orfice processing of series parts.The utility model is simple in structure, and is easy to operate, guarantees higher dimensional accuracy and positioning accuracy, reduces the adjustment time, boosts productivity.The utility model is that a kind of design is ingenious, function admirable, the Precision Machining fixture of convenient and practical adjustable eccentric aperture.
Description of drawings
Fig. 1 is the front view of the utility model the first fixture;
Fig. 2 is the cutaway view of the utility model the first fixture;
Fig. 3 is the front view of the utility model adjustable eccentric aperture fixture;
Fig. 4 is the side cutaway view of the utility model adjustable eccentric aperture fixture;
Fig. 5 is the top plan view of the utility model adjustable eccentric aperture fixture;
Fig. 6 is the structural representation that the utility model is adjusted the bolt self-locking screw thread;
Fig. 7 is the reference mark schematic diagram that the utility model is adjusted the bolt spiral.
The specific embodiment
Embodiment
structural representation of the present utility model such as Fig. 1, 2, 3, 4, shown in 5, the Precision Machining fixture of adjustable eccentric aperture of the present utility model, include the first fixture 1 and the second fixture 2, wherein the first fixture 1 is concentric fixture, the first fixture 1 is arranged in the set mounting groove 21 of the second fixture 2, and the first fixture 1 can be in the set mounting groove 21 of the second fixture 2 axially and move radially, the both sides of mounting groove 21 are respectively equipped with the radially setting-up eccentricity that can adjust the first fixture 1 apart from the adjustment bolt 3 of e, adjusting bolt 3 twists solid in the radially set screwed hole of the second fixture 2, and adjusting bolt 3 by rotation can make an end of adjusting bolt 3 radially withstand on the first fixture 1, the first fixture 1 is fixed in the mounting groove 21 of the second fixture 2.Because above-mentioned the first fixture 1 is concentric fixture, therefore can realize the good clamping effect of processing parts uniform stressed, guaranteed the crudy of thin wall small hole.Above-mentioned the first fixture 1 and the combination of the second fixture 2 make the aperture accurate positioning of different eccentric throws, clamp easy to process, simple.And the combination of above-mentioned the first fixture 1 and the second fixture 2 has guaranteed the required precisions such as axiality of thin wall small hole processing, realizes reliably the processing request of the location clamping of different eccentric apertures.
For ease of location and installation, the structure of above-mentioned the first fixture 1 is T-shaped, and the set mounting groove 21 of the second fixture 2 should be T-shaped groove mutually, and the first fixture 1 reliably is arranged in the set T-shaped groove of the second fixture 2 the first fixture 1 by the boss location of its end.
In the present embodiment, the geometric center of the adjustment bolt 3 that above-mentioned mounting groove 21 both sides are respectively equipped with is on same vertical line.
In the present embodiment, the two ends of above-mentioned adjustment bolt 3 are respectively equipped with screw thread, are polished rod between the screw thread of two ends, and the junction of two ends screw thread and polished rod is equipped with fluting 31, and the spacing between two ends fluting 31 is not to adjust the integral multiple of the pitch of the bolt 3 set screw threads in two ends.When bolt 3 is adjusted in rotation, the radially set screwed hole of the screw thread of adjusting bolt 3 two ends and the second fixture 2 coordinates, and fluting 31 can produce and be out of shape, and the spacing that is slotted between 31 in two ends is the pitch integral multiple, and the bounce that distortion produces can make screw-threaded coupling, plays the function of screw thread self-locking.
Adjust for convenience eccentric throw, the surperficial correspondence that is provided with rotary indicator groove 32, the second fixtures 2 on above-mentioned adjustment bolt (3) is provided with rotary label scale 22.
In the present embodiment, the precision of the rotary label scale 22 that above-mentioned the second fixture 2 is set is 0.02mm.
In the present embodiment, the end face that the end face of above-mentioned the first fixture 1 is provided with the first fixture graduation mark 11, the second fixtures 2 is provided with the second fixture graduation mark 23.
In the present embodiment, the precision of above-mentioned the first fixture graduation mark 11 and the second fixture graduation mark 23 is 0.05mm.
Above-mentioned eccentric distance e is between 0 to 2mm.In the present embodiment, the degree of regulation of above-mentioned eccentric distance e is 0.02mm.
The processing method of the Precision Machining fixture of the utility model adjustable eccentric aperture comprises the steps:
1) bolt 3 is adjusted in rotation, makes the eccentric distance e of the first fixture 1 transfer to predetermined value, adjusts bolt 3 and has auto-lock function, can prevent that the first fixture 1 is loosening;
2) workpiece 4 is packed in the first fixture 1, make workpiece 4 and the first fixture 1 and the second fixture 2 form an assembly;
3) the combinations thereof body is packed in the chuck of lathe, clamp, workpiece 4 is processed.
It is 0.1mm that the utility model built-up jig can form original eccentricity distance, as to be adjusted into eccentric distance e be 0.2mm, can adjust bolt 3 by adjusting and realize.Adjust bolt 3 employings and have the structure of segmentation self-locking thread, after bolt screws, can play well locking fastening effect, guarantee the clamping pressure of fixture, reduce simultaneously the error of adjusting bolt 3 adjustment eccentric distance es.
Claims (9)
1. the Precision Machining fixture of an adjustable eccentric aperture, it is characterized in that including the first fixture (1) and the second fixture (2), wherein the first fixture (1) is concentric fixture, the first fixture (1) is arranged in the set mounting groove (21) of the second fixture (2), and the first fixture (1) can radially move in the set mounting groove (21) of the second fixture (2), the both sides of mounting groove (21) are respectively equipped with the adjustment bolt (3) of the radially setting-up eccentricity distance (e) that can adjust the first fixture (1), adjusting bolt (3) twists solid in the radially set screwed hole of the second fixture (2), and adjusting bolt (3) by rotation can make an end of adjusting bolt (3) radially withstand on the first fixture (1), the first fixture (1) is fixed in the mounting groove (21) of the second fixture (2).
2. the Precision Machining fixture of adjustable eccentric aperture according to claim 1, it is characterized in that above-mentioned the first fixture (1) is T-shaped, the set mounting groove (21) of the second fixture (2) should be T-shaped groove mutually, and the first fixture (1) is arranged in the set T-shaped groove of the second fixture (2).
3. the Precision Machining fixture of adjustable eccentric aperture according to claim 1 is characterized in that the geometric center of the adjustment bolt (3) that above-mentioned mounting groove (21) both sides are respectively equipped with is on same vertical line.
4. the Precision Machining fixture of adjustable eccentric aperture according to claim 1, the two ends that it is characterized in that above-mentioned adjustment bolt (3) are respectively equipped with screw thread, it is polished rod between the screw thread of two ends, the junction of two ends screw thread and polished rod is equipped with fluting (31), and the spacing between two ends flutings (31) is not the integral multiple of pitch.
5. the Precision Machining fixture of the described adjustable eccentric aperture of according to claim 1 to 4 any one, is characterized in that being provided with rotary indicator groove (32) on above-mentioned adjustment bolt (3), and the surperficial correspondence of the second fixture (2) is provided with rotary label scale (22).
6. the Precision Machining fixture of adjustable eccentric aperture according to claim 5, is characterized in that the end face of above-mentioned the first fixture (1) is provided with the first fixture graduation mark (11), and the end face of the second fixture (2) is provided with the second fixture graduation mark (23).
7. the Precision Machining fixture of adjustable eccentric aperture according to claim 6, is characterized in that the precision of the rotary label scale (22) that above-mentioned the second fixture (2) is set is 0.02mm; The precision of above-mentioned the first fixture graduation mark (11) and the second fixture graduation mark (23) is 0.05mm.
8. the Precision Machining fixture of adjustable eccentric aperture according to claim 6, is characterized in that above-mentioned eccentric throw (e) is between 0 to 2mm.
9. the Precision Machining fixture of adjustable eccentric aperture according to claim 8, the degree of regulation that it is characterized in that above-mentioned eccentric throw (e) is 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643595 CN203003512U (en) | 2012-11-29 | 2012-11-29 | Precise processing fixture for small adjustable eccentric hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643595 CN203003512U (en) | 2012-11-29 | 2012-11-29 | Precise processing fixture for small adjustable eccentric hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203003512U true CN203003512U (en) | 2013-06-19 |
Family
ID=48595145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220643595 Withdrawn - After Issue CN203003512U (en) | 2012-11-29 | 2012-11-29 | Precise processing fixture for small adjustable eccentric hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203003512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950486A (en) * | 2012-11-29 | 2013-03-06 | 深圳市欣天科技有限公司 | Precise processing fixture and processing method for adjustable eccentric pore |
-
2012
- 2012-11-29 CN CN 201220643595 patent/CN203003512U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950486A (en) * | 2012-11-29 | 2013-03-06 | 深圳市欣天科技有限公司 | Precise processing fixture and processing method for adjustable eccentric pore |
| CN102950486B (en) * | 2012-11-29 | 2017-05-24 | 深圳市欣天科技有限公司 | Precise processing fixture and processing method for adjustable eccentric pore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili Industrial Zone 4 second Dragon Palace Patentee after: Shenzhen Xintian Technology Co., Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Industrial Zone 4 second Dragon Palace Patentee before: Shenzhen Xintian Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20170524 |