CN203356671U - Positioning clamp - Google Patents
Positioning clamp Download PDFInfo
- Publication number
- CN203356671U CN203356671U CN 201320435964 CN201320435964U CN203356671U CN 203356671 U CN203356671 U CN 203356671U CN 201320435964 CN201320435964 CN 201320435964 CN 201320435964 U CN201320435964 U CN 201320435964U CN 203356671 U CN203356671 U CN 203356671U
- Authority
- CN
- China
- Prior art keywords
- eccentric wheel
- pull bar
- hole
- pull rod
- plate
- 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 positioning clamp. A pull rod is inserted into an installing hole in a drill plate. One end of the pull rod is connected with an eccentric wheel mechanism, and the other end of the pull rod is provided with a pressing plate matched with the drill plate in a pressing mode. The part, located between the drill plate and the pressing plate, of the pull rod is sleeved with a compression spring. The eccentric wheel mechanism comprises an eccentric wheel and a handle arranged on the eccentric wheel. The eccentric wheel is provided with an open slot used for being matched with the pull rod. Rotating shaft holes are correspondingly formed in the two end faces of the eccentric wheel. A through hole is formed in the pull rod, one end of the pull rod is installed inside the open slot, and the pull rod is connected with the eccentric wheel through an inserted cylindrical pin. The drill plate is provided with a drill hole corresponding to a hole to be drilled. Compared with the prior art, the positioning clamp has the advantages that the structure is simple, a datum plane and a datum hole are not needed for positioning, the precision is high, the machined hole position is right positive relative to the appearance, the requirement of the relative technology can be met, the clamping is fast, the service life is long, the cost is low, the structure is light, and the positioning clamp is easy to maintain and can be produced in batches to be used.
Description
Technical field
The utility model belongs to the machining fixture.
Background technology
On a lot of machine components, often the hole of the independent assembling of design is.These hole systems are usually with two datum hole location on datum level and datum level, cooperation and datum level, bushing plate that datum hole is relevant are processed it again, although this processing mode can guarantee the position dimension of hole system to datum level, datum hole, but just can not guarantee the relative profile in the hole processed, even may cause the thick deficiency of some hole wall, affect the mechanical performance of part, and fixture is huger and heavy, the clamping trouble, duration is used in processing, has seriously restricted the batch production efficiency of product.
Summary of the invention
The utility model purpose be a kind of clamping of providing for above-mentioned deficiency rapidly, convenient mounting and clamping, long service life, with low cost, structure light and handy, the processing used time is short, accurate positioning, the positioning fixture easily safeguarded.
The technical solution of the utility model is: pull bar is plugged in the installing hole on bushing plate, and pull bar one end is connected with eccentric mechanism, and the pull bar other end is equipped with and coordinates the pressing plate compressed with bushing plate; Be set with Compress Spring on pull bar between bushing plate and pressing plate; Described eccentric mechanism comprises eccentric wheel, is arranged on eccentric wheel for promoting the handle of eccentric wheel rotation; Described eccentric wheel is provided with for the open slot with the pull bar assembling; Eccentric wheel both ends of the surface correspondence is provided with the shaft hole that vertically runs through open slot; Described pull bar is provided with the through hole that coordinates assembling with shaft hole; Described pull bar one end is loaded in eccentric open slot, and pull bar is connected with eccentric wheel with the straight pin in through hole on pull bar through being plugged in the eccentric wheel upper spindle hole; Described bushing plate is provided with the boring corresponding with hole site to be processed.
Be set with the axle sleeve for coordinating with eccentric wheel on pull bar between described bushing plate and eccentric wheel; Described axle sleeve is fixed in bushing plate through screw.
Described bushing plate is provided with locating piece, gulde edge, the direction notch for positioning workpieces, and between two locating pieces, the space distance is 2/3 of corresponding part bond length, guarantees accurate positioning, avoids location.
On described pull bar, be equipped with for the hexagon thin nut spacing to pressing plate.
In described boring, drill bushing is housed; Described drill bushing and bushing plate are interference fit, guarantee to add drill bushing in man-hour loose or dislocation not.
Described eccentric wheel and straight pin are interference fit.
Described pull bar and straight pin are matched in clearance.
Pull bar freely rotates in bushing plate and axle sleeve; Between bushing plate and pressing plate, distance is the large 3mm of place flange wall thickness left and right than hole, guarantees that pressing plate can hook the clamping stroke of product cavity and pressing plate in eccentric sphere of action.Between eccentric wheel and pull bar, with straight pin, connecting, be interference fit between eccentric wheel and straight pin, straight pin loose or dislocation not during assurance work; Be matched in clearance between pull bar and straight pin, guarantee that eccentric wheel freely rotates around straight pin.
The relative profile calibration in the hole site that utilizes the utility model to process, the hole site dimensional discrepancy processed is no more than ± and 0.5, can meet the size that tolerance is not tight.Compared with prior art, the utility model is simple in structure, without the hole of locating and guaranteeing to process with datum hole with datum level to relative shape just, and precision is higher, the hole site that processes is for the profile calibration, can meet the correlation technique requirement, and clamping rapidly, long service life, with low cost, structure light and handy, easily safeguard, can be for production in enormous quantities.
The accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of the utility model eccentric mechanism.
Fig. 4 is the B-B cut-away view of Fig. 3.
Fig. 5 is the structural representation of the utility model axle sleeve.
Fig. 6 is the structural representation of the utility model pull bar.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is the structural representation of the utility model pressing plate.
Fig. 9 is the C-C cut-away view of Fig. 8.
Figure 10 is the structural representation of workpiece.
Figure 11 is use state diagram of the present utility model.
In figure, 1 is eccentric wheel, and 2 is axle sleeve, and 3 is bushing plate, and 4 is drill bushing, 5 is handle, and 6 is straight pin, and 7 is pull bar, and 8 is Compress Spring, and 9 is pressing plate, 10 is hexagon thin nut, and 11 is locating piece, and 12 is gulde edge, and 13 is the direction notch, and 14 is screw, 15 is shaft hole, and 16 is open slot, and 17 is through hole, and 18 is the screw via hole, 19 is through hole, and 20 is the end of thread, and 21 is the slotted eye of galloping along on horseback, and 22 is the part minor face, 23 is the long limit of part, and 24 for machine adds face, and 25 is the part square hole, and 26 is hole to be processed.
The specific embodiment
In Fig. 1, pull bar 7 is plugged in the installing hole on bushing plate 3, and pull bar 7 one ends are connected with eccentric mechanism, and pull bar 7 other ends are equipped with and coordinate the pressing plate 9 compressed with bushing plate 3; Be set with Compress Spring 8 on pull bar 7 between bushing plate 3 and pressing plate 9, adjust bushing plate 3 and pressing plate 9 distances and be place flange wall thickness+3mm left and right for hole, spacing with 2 hexagon thin nuts 10.Eccentric mechanism comprises eccentric wheel 1, is arranged on eccentric wheel 1 for promoting the handle 5 of eccentric wheel 1 rotation.Straight pin 6 is plugged on shaft hole on eccentric wheel 1 and pull bar 7 in through hole.Between pull bar 7 and eccentric wheel 1, with straight pin 6, connect.Be set with the axle sleeve 2 for coordinating with eccentric wheel 1 on pull bar 7 between bushing plate 3 and eccentric wheel 1.Bushing plate 3 is provided with the boring corresponding with hole site to be processed, and drill bushing 4 is housed in boring.
In Fig. 2, be shaped with locating piece 11 on bushing plate 3, gulde edge 12, the direction notch 13 of identification direction.Axle sleeve 2 use screws 14 are fixed on bushing plate 3.Wherein 1 is eccentric wheel, and 3 is bushing plate, and 4 is drill bushing.
In Fig. 3,4, eccentric wheel 1 is provided with for the open slot 16 with the pull bar assembling; Eccentric wheel 1 both ends of the surface correspondence is provided with the shaft hole 15 that vertically runs through open slot 16.Be welded with handle 5 on eccentric wheel 1.
In Fig. 5, axle sleeve 2 middle parts are provided with the through hole 17 coordinated with pull bar 7, and both sides are provided with screw via hole 18.
In Fig. 6,7, pull bar 7 one ends are shaped with the end of thread 20, and the other end, without screw thread, is shaped with through hole 19 without the end of thread, and two end mills are flat.In the open slot that pull bar 7 is packed on eccentric wheel without the end of thread, pull bar 7 threaded ends are equipped with pressing plate.
In Fig. 8,9, be shaped with the slotted eye 21 of galloping along on horseback coordinated with pull bar in the middle of pressing plate 9.
In Figure 10, in workpiece, 22 is the part minor face, and 23 is the long limit of part, and 24 for machine adds face, and 25 is the part square hole, and 26 is hole to be processed.
In Figure 11, at first firmly believe direction notch 13, eccentric wheel 1 is adjusted into to the tight state of fully pressure-free, and rotary pressure plate is to the state that can enter tube cavity.Drilling tool is put into to product cavity, with locating piece 11, hook part minor face 22, the machine that pasting adds that face 24 moves around until the long limit 23 of gulde edge 12 and part overlaps.
Rotating rod 7 can hook the direction of inner cavity of component wall to pressing plate 9, rotating eccentricity wheel 1, pressing plate 9 is compressing component along with the rotation of eccentric wheel 1, after compressing component, just can be processed product, after completion of processing, Panasonic's eccentric wheel 1, rotating rod 7 to pressing plate 9 can exit product cavity, so far whole process finishing.
Claims (7)
1. a positioning fixture, it is characterized in that: pull bar (7) is plugged in the installing hole on bushing plate (3), and pull bar (7) one ends are connected with eccentric mechanism, and pull bar (7) other end is equipped with and coordinates the pressing plate (9) compressed with bushing plate (3); Be set with Compress Spring (8) on pull bar (7) between bushing plate (3) and pressing plate (9);
Described eccentric mechanism comprises eccentric wheel (1), is arranged at the upper handle (5) rotated for promoting eccentric wheel (1) of eccentric wheel (1);
Described eccentric wheel (1) is provided with for the open slot (16) with pull bar (7) assembling; Eccentric wheel (1) both ends of the surface correspondence is provided with the shaft hole (15) that vertically runs through open slot (16);
Described pull bar (7) is provided with the through hole (19) that coordinates assembling with shaft hole (15);
Described pull bar (7) one ends are loaded in the open slot (16) of eccentric wheel (1), and the straight pin (6) of pull bar (7) in being plugged in the upper through hole (19) of eccentric wheel (1) upper spindle hole (6) and pull bar (7) is connected with eccentric wheel (1);
Described bushing plate (3) is provided with the boring corresponding with hole site to be processed.
2. positioning fixture according to claim 1 is characterized in that: on the pull bar (7) between described bushing plate (3) and eccentric wheel (1), be set with the axle sleeve (2) for coordinating with eccentric wheel (1); Described axle sleeve is fixed in bushing plate (3) through screw (14).
3. positioning fixture according to claim 1, it is characterized in that: described bushing plate (3) is provided with locating piece (11), gulde edge (12), the direction notch (13) for positioning workpieces.
4. positioning fixture according to claim 1, is characterized in that: on described pull bar (7), be equipped with for the hexagon thin nut (10) spacing to pressing plate (9).
5. positioning fixture according to claim 1, is characterized in that: drill bushing (4) is housed in described boring; Described drill bushing (4) and bushing plate (3) are interference fit.
6. positioning fixture according to claim 1 is characterized in that: described eccentric wheel (1) and straight pin (6) are interference fit.
7. positioning fixture according to claim 1 is characterized in that: described pull bar (7) and straight pin (6) are matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320435964 CN203356671U (en) | 2013-07-22 | 2013-07-22 | Positioning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320435964 CN203356671U (en) | 2013-07-22 | 2013-07-22 | Positioning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203356671U true CN203356671U (en) | 2013-12-25 |
Family
ID=49804492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320435964 Expired - Fee Related CN203356671U (en) | 2013-07-22 | 2013-07-22 | Positioning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203356671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785823A (en) * | 2015-04-29 | 2015-07-22 | 利欧集团股份有限公司 | Automatic positioner for drilling |
-
2013
- 2013-07-22 CN CN 201320435964 patent/CN203356671U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785823A (en) * | 2015-04-29 | 2015-07-22 | 利欧集团股份有限公司 | Automatic positioner for drilling |
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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: 20131225 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |