CN216464096U - Eccentric compensation positioning structure - Google Patents
Eccentric compensation positioning structure Download PDFInfo
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- CN216464096U CN216464096U CN202122491437.8U CN202122491437U CN216464096U CN 216464096 U CN216464096 U CN 216464096U CN 202122491437 U CN202122491437 U CN 202122491437U CN 216464096 U CN216464096 U CN 216464096U
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- mounting seat
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- pin mounting
- positioning
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Abstract
The utility model discloses an eccentric compensation positioning structure which comprises a substrate, a fixed pin mounting seat, a fixed positioning pin, a floating pin mounting seat, a floating block and a floating positioning pin, wherein the fixed pin mounting seat and the floating pin mounting seat are fixedly arranged on the upper surface of the substrate, the fixed positioning pin is arranged on the fixed pin mounting seat, the floating positioning pin is fixedly arranged on the floating block, the lower surface of the floating block is eccentrically provided with a cylindrical protruding part, the upper surface of the floating pin mounting seat is downwards provided with a cylindrical groove part, the groove part and the protruding part are coaxially arranged, the inner diameter of the groove part is larger than the outer diameter of the protruding part, the floating block is connected with the floating pin mounting seat through a shaft, the groove part and the protruding part are in clearance fit, the floating block can eccentrically rotate relative to the floating pin mounting seat, the rotating angle is limited by the protruding part and the groove part, and the positioning precision is compensated through position deviation. The structure reduces the cost of the positioning mechanism, reduces the requirements on the machining precision of the positioning mechanism and the trays, and improves the adaptability to various trays.
Description
Technical Field
The utility model is applied to positioning of a tray in automatic conveying, and particularly relates to an eccentric compensation pin positioning structure.
Background
In the design of current location structure, generally all adopt standard locating pin and guide pin as location structure, the tolerance of locating pin and guide pin is very little, general clearance volume is about 0.02mm, in the prior art, install the locating pin on the location base plate usually, with position tolerance control locating pin position, nevertheless when the interval of two locating pins surpasss more than 1.2 meters, in order to guarantee the location accuracy, to the plane degree of location base plate and tray, the processing requirement of deflection can double increase, it is big to lead to the processing degree of difficulty, high cost, the later stage is out of shape greatly, lead to the location inaccurate, can cause permanent damage to tray and locating pin under the serious conditions.
Disclosure of Invention
The utility model discloses an eccentric compensation pin positioning structure, which comprises a substrate, a fixed pin mounting seat, a fixed positioning pin, a floating pin mounting seat, a floating block and a floating positioning pin, wherein the fixed pin mounting seat and the floating pin mounting seat are fixedly arranged on the upper surface of the substrate, the fixed positioning pin is arranged on the fixed pin mounting seat, the floating positioning pin is fixedly arranged on the floating block, the lower surface of the floating block is provided with a cylindrical protruding part which is eccentrically arranged relative to the lower surface of the floating block, the upper surface of the floating pin mounting seat is downwards provided with a cylindrical groove part, and the groove part and the protruding part are coaxially arranged, and the inner diameter of the groove part is larger than the outer diameter of the protruding part, the depth of the groove part is larger than the height of the protruding part, the floating block is connected with the floating pin mounting seat through a shaft, the groove part and the protruding part are in clearance fit, the floating block can eccentrically rotate relative to the floating pin mounting seat, and the rotating angle is limited by the protruding part and the groove part.
Preferably, the fixed pin mounting seat and the floating pin mounting seat are arranged diagonally relative to the substrate, so that the positioning stability and accuracy can be improved.
Preferably, the top end of the floating positioning pin is round.
Preferably, the peripheral surface of the floating block is provided with a clamping part, and the clamping part is a group of symmetrical parallel tangent planes and can be used for clamping when the floating pin is fixed.
The floating pin is eccentrically arranged on the floating pin mounting seat through the floating block, the protruding part of the floating block is in clearance fit with the groove part of the floating pin mounting seat, so that the floating positioning pin can rotate within a limited small range relative to the floating pin mounting seat, the floating positioning pin rotates within a small range after a top fillet of the floating positioning pin enters a tray pin sleeve needing to be matched, the tolerance of the tray pin sleeve is adapted, and the positioning precision is compensated through position deviation. This structure has reduced positioning mechanism's adult cost, has reduced the machining precision requirement of positioning mechanism and tray simultaneously, reduces the precision influence by a wide margin, has promoted the suitability to multiple tray.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective exploded view of the present invention.
Fig. 3 is a partial cross-sectional view of the present invention.
FIG. 4 is a schematic view of a slider of the present invention.
FIG. 5 is a schematic diagram of an embodiment of the present invention.
FIG. 6 is a schematic diagram of an embodiment of the present invention.
In the figure: 1. positioning the substrate; 2. a fixed pin mounting seat; 3. a floating pin mounting seat; 301. a groove part; 4. fixing a positioning pin; 5. a floating positioning pin; 6. mounting screws; 7. a slider; 701. a projection; 702. a clamping portion; 8. a positioning pin mounting hole; 9. plugging a bolt; 10. an oilless bushing; 11. and the shaft hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a fixed pin mounting seat 2 and a floating pin mounting seat 3 are fixedly arranged on a positioning substrate 1, the fixed pin mounting seat 2 and the floating pin mounting seat 3 are diagonally arranged with respect to the positioning substrate 1, a fixed positioning pin 4 is fixedly arranged on the fixed pin mounting seat 2, a floating positioning pin 5 passes through a positioning pin mounting hole 8 of a slider 7 through a mounting screw 6 and is fixedly connected with the slider 7, a cylindrical protrusion 701 is arranged on the lower surface of the slider 7, the protrusion 701 is eccentrically arranged with respect to the lower surface of the slider 7, a cylindrical groove 301 is arranged downward on the upper surface of the floating pin mounting seat 3, the groove 301 and the protrusion 701 are coaxially arranged, the inner diameter of the groove 301 is slightly larger than that of the protrusion 701, and the depth of the groove 301 is slightly larger than the height of the protrusion 701. That is, the volume of the groove portion 301 is larger than the volume of the protruding portion 701 and can accommodate the protruding portion 701, the floating block 7 is provided with a clamping portion 702, the clamping portion 702 is a set of symmetrical parallel tangent planes on the peripheral surface of the floating block 7 and is used for clamping the floating block 7 by a jig in the installation process, the floating block 7 is connected with the floating pin installation seat 3 through an up-and-down through shaft hole 11 formed in the floating block 7 by sleeving the oil-free bush 10 through the plug bolt 9, the shaft hole 11 is eccentrically arranged relative to the upper surface and the lower surface of the floating block 7, the floating block 7 passes through the oil-free bush 10 and is in sliding friction with the plug bolt 9, and the protruding portion 701 of the floating block 7 is in clearance fit with the groove portion 301 of the floating pin installation seat 3 at the moment.
The floating block 7 can eccentrically rotate relative to the floating pin mounting base 3 by taking the stopper bolt 9 as a shaft, and the rotating angle is limited by the clearance fit of the convex part 701 and the groove part 301, namely, the floating positioning pin 5 can eccentrically rotate relative to the floating pin mounting base 3 in a small range of the angle which can be limited in the horizontal direction.
When the positioning substrate 1 is matched and positioned with the pin bush of the tray, the fixed positioning pin 4 and the floating positioning pin 5 are respectively inserted into the pin bush corresponding to the tray to position the tray, because the positioning pin bush processed by the tray has insufficient precision or deforms in the using process, the axis of the positioning pin can generate certain deviation relative to the axis of the floating positioning pin 5, the floating positioning pin 5 can be attached to the inner wall of the pin bush under the driving of a round head to rotate slightly in the process of entering the pin bush, as shown in fig. 5 and 6, the two compensation modes with different positions are adopted, namely, the floating block 7 is in two limit positions of eccentric rotation relative to the floating pin mounting seat 3, and therefore the structure is ensured to complete the positioning of the tray and cannot damage the positioning pin joint.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. An eccentric compensation positioning structure comprises a substrate, a fixed pin mounting seat, a fixed positioning pin, a floating pin mounting seat, a floating block and a floating positioning pin, and is characterized in that the fixed pin mounting seat and the floating pin mounting seat are fixedly arranged on the upper surface of the substrate, the fixed positioning pin is arranged on the fixed pin mounting seat, the floating positioning pin is fixedly arranged on the floating block, the lower surface of the floating block is provided with a cylindrical protruding part which is eccentrically arranged relative to the lower surface of the floating block, the upper surface of the floating pin mounting seat is provided with a cylindrical groove part downwards, the groove part and the protruding part are coaxially arranged, the inner diameter of the groove part is larger than the outer diameter of the protruding part, the floating block is connected with the floating pin mounting seat through a shaft, and the groove part and the protruding part are in clearance fit, the floating block can eccentrically rotate relative to the floating pin mounting seat, and the rotating angle is limited by the protruding part and the groove part.
2. An eccentricity-compensating positioning structure as set forth in claim 1, wherein said fixed pin mount and said floating pin mount are disposed diagonally with respect to said base plate.
3. The eccentric compensating locator of claim 2, wherein the floating locator pin is a round-headed locator pin.
4. An eccentricity-compensating positioning structure as claimed in any one of claims 1 to 3, wherein the outer peripheral surface of the slider is provided with a plurality of clamping portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122491437.8U CN216464096U (en) | 2021-10-16 | 2021-10-16 | Eccentric compensation positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122491437.8U CN216464096U (en) | 2021-10-16 | 2021-10-16 | Eccentric compensation positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216464096U true CN216464096U (en) | 2022-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122491437.8U Active CN216464096U (en) | 2021-10-16 | 2021-10-16 | Eccentric compensation positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216464096U (en) |
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2021
- 2021-10-16 CN CN202122491437.8U patent/CN216464096U/en active Active
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