CN204053514U - A kind of self-centering fixture - Google Patents
A kind of self-centering fixture Download PDFInfo
- Publication number
- CN204053514U CN204053514U CN201420353119.2U CN201420353119U CN204053514U CN 204053514 U CN204053514 U CN 204053514U CN 201420353119 U CN201420353119 U CN 201420353119U CN 204053514 U CN204053514 U CN 204053514U
- Authority
- CN
- China
- Prior art keywords
- fastening screw
- base
- self
- fastening
- centering fixture
- 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.)
- Active
Links
Landscapes
- Drilling And Boring (AREA)
Abstract
The utility model provides a kind of self-centering fixture, comprise the fastening screw in base, base, base fixes a support in fastening screw centre position, fastening screw two ends are provided with fastening block, base is arranged with about support the through hole establishing drill bushing in two rows between two fastening blocks, fastening screw has at least one end to be provided with handle, and described handle is fixedly connected with by pin with between fastening screw, two fastening blocks can be made to open simultaneously or close simultaneously by rotary handle.The advantage that the utility model has and good effect are: the requirement that can meet drawing symmetry, realize the symmetrical self-centering in both sides and clamp, structure is simple, easy to use, positioning precision is high, applicable workpiece is extensive, improve working (machining) efficiency, reducing labor intensity.
Description
Technical field
The utility model relates to machining field of accessories, especially relates to a kind of self-centering fixture.
Background technology
Workpiece configurations size directly affects the symmetry in work pieces process hole, existing drill jig is generally a groove location, the structure that both ends of the surface are stepped up, when utilizing existing drill jig processing instances as Iron-surfur clusters electric point machine connecting plate two hole dimension, error is very large, can not meet the requirement of drawing symmetry.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of self-centering fixture, especially a kind of be applicable to all kinds drilling machine equipment, precision high, the self-centering fixture that has symmetrical holes.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of self-centering fixture, comprise the fastening screw in base, base, base fixes a support in fastening screw centre position, fastening screw two ends are provided with fastening block, base is arranged with about support the through hole establishing drill bushing in two rows between two fastening blocks, fastening screw has at least one end to be provided with handle, described handle is fixedly connected with by pin with between fastening screw, two fastening blocks can be made to open simultaneously or close simultaneously by rotary handle.
Further, the through hole on base is about the symmetry of fastening screw.
Further, the centre position of described fastening screw is provided with semi-circular recesses, fastening screw is respectively equipped with left-handed trapezoidal thread and dextrorotation trapezoidal thread on the both sides of groove, is provided with the screwed hole matched in fastening block.
Further, described fastening block is convex shape structure.
Further, described base upper surface has two orthogonal keyways, a keyway fixed support, and support and base are fixed by alignment pin, and the bossing of another keyway and fastening block matches.
Further, described support is convex shape structure, and bracket tab position is provided with a pin, and the texturearunaperpendicular cross-matched with on fastening screw, makes fastening screw realize axial-rotation in the bracket and can not move radially.
Further, on described base, the both sides of through hole are respectively equipped with two row's guide rails, and fastening block synchronously opens or synchronously closes on guide rail.
Further, on described base, the quantity of through hole is four, both about fastening screw axial symmetry, symmetrical about support shaft again.
Further, described base is rectangular structure.
Further, described support and base are also fixed by two cheese head screws about fastening screw symmetry.
The advantage that the utility model has and good effect are:
1. semicircle groove and support round orifices orientation pin fixed position in the middle of fastening screw, so can only axial-rotation and can not moving radially during rotary screw;
2. fastening screw screw thread and corresponding left and right tight iron revolve and, left and right tight iron synchronously opens or closed mobile, realizes both sides symmetry and carries out self-centering and clamp.
3. have that structure is simple, easy to use, positioning precision is high, be suitable for workpiece extensively, improve working (machining) efficiency, the advantage such as reduce labor intensity.
Accompanying drawing explanation
Fig. 1 is the front view of described self-centering fixture;
Fig. 2 is the top view of described self-centering fixture;
Fig. 3 is the side view of described self-centering fixture;
Fig. 4 is the structural representation of the handle of described self-centering fixture;
Fig. 5 is the structural representation of the fastening screw of described self-centering fixture;
Fig. 6 is the structural representation of the fastening block of described self-centering fixture;
Fig. 7 is the front view of the base of described self-centering fixture;
Fig. 8 is the top view of the base of described self-centering fixture;
Fig. 9 is the side view of the base of described self-centering fixture;
Figure 10 is the structural representation of the drill bushing of described self-centering fixture;
Figure 11 is the front view of the support of described self-centering fixture;
Figure 12 is the top view of the support of described self-centering fixture.
In figure:
1, handle 2, fastening screw 3, fastening block
4, base 5, drill bushing 6, support
7, dextrorotation trapezoidal thread 8, pin 9, alignment pin
10, cheese head screw 11, guide rail 12, groove
13, left-handed trapezoidal thread
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is illustrated:
As shown in Fig. 1 ~ 12, a kind of self-centering fixture of the present utility model, comprise the base 4 of rectangular structure, fastening screw 2 is provided with in base 4, one end of fastening screw 2 is provided with handle 1, described handle 1 is fixedly connected with by pin 8 with between fastening screw 2, and the centre position of fastening screw 2 is provided with semi-circular recesses 12, and fastening screw 2 is respectively equipped with left-handed trapezoidal thread 13 and dextrorotation trapezoidal thread 7 on the both sides of groove 12.
Fastening screw 2 two ends are provided with the fastening block 3 of convex shape structure, are provided with the screwed hole matched in fastening block 3.Two, base 4 upper surface midline position has two orthogonal keyways, one of them keyway internal fixtion has the support 6 of convex shape structure, fix with the alignment pin 9 of base 4 by two symmetries, the side of support 6 raised position is provided with a pin 8, mate with groove 12 square crossing on fastening screw 2, during rotary handle 1, make fastening screw 2 can only axial-rotation and can not moving radially; The bossing of another keyway and fastening block 3 matches.
Base 4 is provided with the through hole establishing drill bushing 5 in four between two fastening blocks 3, both about fastening screw 2 axial symmetry, again about support 6 axial symmetry, through hole for placing pilot drill, the model of the replaceable applicable pilot drill size of drill bushing 5.On base 4, the both sides of through hole are respectively equipped with two row's guide rails 11, and fastening block 3 synchronously opens or synchronously closes on guide rail 11, realize both sides symmetry and carry out self-centering and clamp.
Described support 6 and base 4 are also fixing by two cheese head screws 10 about fastening screw 2 symmetry, can be fixed on the main equipments such as lathe.
The course of work of the present embodiment is: select the pilot drill and the drill bushing 5 that are applicable to size, rotary handle 1, two fastening blocks 3 are opened simultaneously, pilot drill is put into the through hole establishing drill bushing 5, reversely rotate handle 1, fastening block 3 is closed simultaneously, until pilot drill positioning and clamping completes, can hole.After machining, then rotary handle 1, fastening block 3 is opened simultaneously, takes out pilot drill.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (10)
1. a self-centering fixture, comprise base (4), fastening screw (2) in base (4), it is characterized in that: base (4) fixes a support (6) in fastening screw (2) centre position, fastening screw (2) two ends are provided with fastening block (3), be arranged with about support (6) through hole establishing drill bushing (5) in two rows between upper two fastening blocks (3) of base (4), fastening screw (2) has at least one end to be provided with handle (1), be fixedly connected with by pin (8) between described handle (1) with fastening screw (2).
2. self-centering fixture according to claim 1, is characterized in that: the through hole on base (4) is about the symmetry of fastening screw (2).
3. self-centering fixture according to claim 2, it is characterized in that: the centre position of described fastening screw (2) is provided with semi-circular recesses (12), fastening screw (2) is respectively equipped with left-handed trapezoidal thread (13) and dextrorotation trapezoidal thread (7) on the both sides of groove (12), and fastening block is provided with the screwed hole matched in (3).
4. the self-centering fixture according to any one of claims 1 to 3, is characterized in that: described fastening block (3) is convex shape structure.
5. self-centering fixture according to claim 4, it is characterized in that: described base (4) upper surface has two orthogonal keyways, a keyway fixed support (6), support (6) is fixed by alignment pin (9) with base (4), and the bossing of another keyway and fastening block (3) matches.
6. self-centering fixture according to claim 5, it is characterized in that: described support (6) is convex shape structure, support (6) raised position is provided with a pin (8), mates with groove (12) square crossing on fastening screw (2).
7. self-centering fixture according to claim 6, it is characterized in that: the both sides of the upper through hole of described base (4) are respectively equipped with two row's guide rails (11), and fastening block (3) synchronously opens or synchronously closes on guide rail (11).
8. self-centering fixture according to claim 7, is characterized in that: the quantity of the upper through hole of described base (4) is four, both about fastening screw (2) axial symmetry, again about support (6) axial symmetry.
9. self-centering fixture according to claim 8, is characterized in that: described base (4) is rectangular structure.
10. self-centering fixture according to claim 9, is characterized in that: described support (6) and base (4) are also fixed about the cheese head screw (10) that fastening screw (2) is symmetrical by two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353119.2U CN204053514U (en) | 2014-06-27 | 2014-06-27 | A kind of self-centering fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353119.2U CN204053514U (en) | 2014-06-27 | 2014-06-27 | A kind of self-centering fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204053514U true CN204053514U (en) | 2014-12-31 |
Family
ID=52195099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420353119.2U Active CN204053514U (en) | 2014-06-27 | 2014-06-27 | A kind of self-centering fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204053514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228642A (en) * | 2017-06-30 | 2017-10-03 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of fast-positioning device for shape measuring instrument |
-
2014
- 2014-06-27 CN CN201420353119.2U patent/CN204053514U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228642A (en) * | 2017-06-30 | 2017-10-03 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of fast-positioning device for shape measuring instrument |
| CN107228642B (en) * | 2017-06-30 | 2019-10-18 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of fast-positioning device for shape measuring instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201632679U (en) | Multi-station drilling and tapping machine | |
| CN202271131U (en) | Device for welding and fixing small frame | |
| CN204321682U (en) | The two-sided tapping fixture of Multiaxial tapping machine | |
| CN203304657U (en) | Multi-station milling machine tool | |
| CN201455336U (en) | Modified bench drill | |
| CN204036073U (en) | A kind of Combined fixture fixture | |
| CN204018780U (en) | A kind of double-ended double-station holes pressure-plate boring device | |
| CN204053514U (en) | A kind of self-centering fixture | |
| CN106346055A (en) | Efficient drilling fixture | |
| CN203304952U (en) | Milling fixture for asymmetric side edges | |
| CN201313253Y (en) | Four-bar linkage centering fixture | |
| CN201913557U (en) | Automatic-centering clamping vice | |
| CN201689989U (en) | Lead fast mounting clamping board | |
| CN204565217U (en) | The drill jig that a kind of novel involution nut shell auger is cut | |
| CN102785103B (en) | A kind of fixture for cable clip Milling Process | |
| CN204449535U (en) | A kind of New electrode clamping device | |
| CN204367098U (en) | Wood-milling machine clamping device | |
| CN203863394U (en) | Clamp special for combined drilling of transmission control connection assembly | |
| CN204339344U (en) | A kind of novel can the fraise jig device of Fast Installation | |
| CN204182983U (en) | The accurate positioning drill jig in rectangular cylinder workpiece five hole | |
| CN102990387A (en) | Drilling device for hydraulic cylinder | |
| CN202804746U (en) | Fixture for milling cable clamps | |
| CN203091789U (en) | Three-jaw linkage chuck for automatic drilling distribution machine for numerical control tire mold | |
| CN203621999U (en) | Fixture for cylindrical workpiece | |
| CN203266187U (en) | Lantern drill bit milling and clamping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |