CN216000191U - Quick positioning and correcting clamp for polyhedron special-shaped part - Google Patents
Quick positioning and correcting clamp for polyhedron special-shaped part Download PDFInfo
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- CN216000191U CN216000191U CN202121979800.4U CN202121979800U CN216000191U CN 216000191 U CN216000191 U CN 216000191U CN 202121979800 U CN202121979800 U CN 202121979800U CN 216000191 U CN216000191 U CN 216000191U
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Abstract
The utility model provides a quick positioning and correcting clamp for a polyhedron special-shaped part, which comprises: a base plate; the limiting support body is fixed on the bottom plate, a side pressing plate which forms an L shape and can be detached with the limiting support body is arranged on the limiting support body, and a third adjusting bolt and a first adjusting bolt for positioning a workpiece are respectively screwed on the side pressing plate and the limiting support body; the supporting and positioning block is detachably arranged on the bottom plate, is positioned diagonally opposite to the limiting and supporting body, and is provided with an L-shaped boss which is matched with the third adjusting bolt and the first adjusting bolt for use and used for positioning a workpiece; the leveling mechanism is detachably arranged on the bottom plate and is used for supporting and leveling a workpiece; the pressing mechanism is detachably mounted on the bottom plate and used for pressing the workpiece to prevent the workpiece from moving. The clamp can align two crossed processing surfaces, realizes one-time correction clamping processing, and improves the processing efficiency of products.
Description
Technical Field
The utility model relates to the technical field of part processing, in particular to a quick positioning and correcting clamp for a polyhedron special-shaped part.
Background
The design features of the blank of polyhedron special-shaped part for engine of a certain model are polyhedron with complex shape, such as more and narrow rib plates, small and deep groove, irregular cavity and gradient machined surface. The stress is uneven and unstable and tremble easily in the clamping correction and machining processes, and the rapid positioning correction machining is difficult to realize, so that the machining efficiency and the precision of parts are influenced. The original processing scheme adopts multiple processes and multiple sets of combined fixtures to clamp and process in a large-area supporting mode, although the surface supporting mode is theoretically stable, for an irregular blank positioning surface, the larger the area of the supporting surface is, the more the stress points of parts are, the more the parts are, the more the placing angles of the processing surfaces with the inclination are, the external force of a processing cutter is generated, the unstable size and the low processing efficiency are finally caused; moreover, the whole process has long preparation time, complex processing steps, difficult rapid alignment and high production cost, and the product has non-uniform benchmark, unstable size, difficult guarantee of form and position tolerance and low qualification rate due to repeated clamping and repeated alignment, and finally the product of the special-shaped part becomes a 'stumbling stone' of the production node progress.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to provide a fixture for quickly positioning and correcting a polyhedral special-shaped part, which is configured to support according to the position of a support point under an irregular blank positioning surface of a part and the degree of convexity, and align two intersecting processing surfaces, thereby realizing one-time correction clamping processing, reducing the processing cost of a product, improving the processing efficiency, and providing a favorable technical support and a favorable research direction for high-precision and high-speed correction processing of polyhedral special-shaped part products of certain types of engines.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a quick positioning and correcting clamp for polyhedron irregular parts comprises:
a bottom plate, a plurality of first connecting plates,
the limiting support body is fixed at one corner of the upper surface of the bottom plate, a detachable side pressure plate is arranged on the limiting support body, the side pressure plate and the limiting support body form an L shape, and a third adjusting bolt and a first adjusting bolt for positioning a workpiece are respectively screwed on the side pressure plate and the limiting support body;
the supporting and positioning block is detachably arranged on the bottom plate, is positioned diagonally opposite to the limiting and supporting body, and is provided with an L-shaped boss which is matched with the third adjusting bolt and the first adjusting bolt for use and used for positioning a workpiece on the upper surface;
the leveling mechanism is detachably arranged on the bottom plate and is used for supporting and leveling a workpiece;
and the pressing mechanism is detachably arranged on the bottom plate and is used for pressing the workpiece to prevent the workpiece from moving.
Furthermore, a first lower pressing plate for pressing the workpiece is mounted at the top of the limiting support body through a pressing bolt; and the central axis of the third adjusting bolt is perpendicular to the central axis of the first adjusting bolt.
The first lower pressing plate is provided with a long round hole, a pressing bolt penetrates through the long round hole, an adjusting support with a supporting effect is arranged below the first lower pressing plate, the adjusting support comprises a support body and a screw rod integrally connected with the support body, and the screw rod is in threaded connection with the limiting support body.
Furthermore, the supporting and positioning block comprises a supporting platform and a supporting backrest vertically arranged on the upper surface of the supporting platform, the L-shaped boss is located on the upper surface of the supporting platform, and a fourth adjusting bolt for positioning the workpiece is screwed on the supporting backrest.
Further, the support backrest is parallel to the side pressing plates, and the vertical edges of the L-shaped bosses are parallel to the side pressing plates.
Furthermore, the upper surface of the supporting platform is provided with a through fixing hole, a fixing bolt is screwed in the fixing hole, and the supporting and positioning block is fixed on the bottom plate through the fixing bolt.
The bottom plate is provided with a plurality of first mounting holes for fixing bolts in a threaded manner.
Further, the leveling mechanism comprises a plurality of support columns which are detachably mounted on the bottom plate.
Further, the support column comprises a flat top support for supporting a plane and a dome support for supporting a curved surface, and the flat top support and the dome support are screwed with the base plate.
And a plurality of second mounting holes for screwing the flat-top support and the dome support are formed in the bottom plate.
Further, the pressing mechanism comprises a second lower pressing plate, a stud, a second fastening nut and a pressing plate support piece;
the stud is in threaded connection with the bottom plate, the second lower pressing plate is provided with a long round hole, the stud penetrates through the long round hole, a second fastening nut is in threaded connection with the stud above the second lower pressing plate, and the second lower pressing plate is used for pressing the surface of a workpiece; and a detachable pressing plate supporting piece used for supporting the second lower pressing plate is also arranged below the second lower pressing plate.
And a plurality of third mounting holes for screwing the studs are formed in the bottom plate.
Furthermore, a fifth adjusting bolt for pressing the workpiece is screwed on the second lower pressing plate.
Furthermore, a strip-shaped through key groove is formed in the side pressure plate, a second adjusting bolt is inserted into the through key groove, and the side pressure plate is fixed on the limiting support body through the second adjusting bolt.
Furthermore, the periphery of the bottom plate is provided with a notch, a supporting bolt is inserted into the notch, and a first fastening nut is screwed on the supporting bolt.
Compared with the prior art, the quick positioning and correcting clamp for the polyhedron special-shaped piece has the following advantages:
(1) the quick positioning and correcting clamp for the polyhedron special-shaped piece supports and levels the workpiece through the leveling mechanism, meanwhile, the end part of the workpiece is clamped at an L-shaped boss formed by enclosing the limiting support body and the side pressing plate and an L-shaped boss on the supporting and positioning block respectively to realize positioning, the position of the workpiece can be adjusted through the third adjusting bolt and the first adjusting bolt, and the workpiece is pressed tightly through the pressing mechanism to prevent the workpiece from moving. The fixture can realize one-time correction and clamping of important machined surfaces, reduces clamping times, avoids machining errors caused by non-uniform product references due to repeated fixture replacement and repeated alignment, and meets the requirements of special-shaped parts on space angles and sizes; meanwhile, the working efficiency and the qualification rate are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of a quick positioning and correcting clamp for a polyhedral special-shaped part according to an embodiment of the present invention;
fig. 2 is a view of the quick positioning and correcting clamp for a polyhedron profile according to an embodiment of the present invention in the direction a;
FIG. 3 is a top view of a base plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a workpiece to be processed.
Description of reference numerals:
1-a bottom plate; 11-a first mounting hole; 12-a second mounting hole; 13-a third mounting hole; 14-notches; 15-stay bolts; 16-a first fastening nut; 2-a limiting support body; 21-a first adjusting bolt; 22-hold-down bolts; 23-a first lower platen; 24-adjusting the support; 25-a second adjusting bolt; 26-side pressing plates; 27-a third adjusting bolt; 3-supporting a positioning block; 31-a support platform; 32-support backrest; 33-a fourth adjusting bolt; 34-a fixing hole; 35-fixing bolts; 36-L-shaped bosses; 4-flat top supporting; 5-dome support; 6-a pressing mechanism; 61-a second lower platen; 62-a stud; 63-a second fastening nut; 64-a fixing nut; 65-a fifth adjusting bolt; 66-platen support.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-2, a quick positioning and correcting clamp for polyhedron irregular parts comprises:
the bottom plate 1 can be a square plate,
the limiting support body 2 is fixed at one corner of the upper surface of the bottom plate 1, a detachable side pressure plate 26 is arranged on the limiting support body 2, the side pressure plate 26 and the limiting support body 2 form an L shape, and a third adjusting bolt 27 and a first adjusting bolt 21 for positioning a workpiece are respectively screwed on the side pressure plate 26 and the limiting support body 2;
the supporting and positioning block 3 is detachably mounted on the base plate 1, so that the position of the supporting and positioning block 3 can be adjusted according to the size of a workpiece, the supporting and positioning block 3 is positioned diagonally opposite to the limiting and supporting body 2, and an L-shaped boss 36 which is matched with the third adjusting bolt 27 and the first adjusting bolt 21 for use and used for positioning the workpiece is arranged on the upper surface of the supporting and positioning block 3; the side pressure plate 26 is positioned at one side of the limiting support body 2 close to the supporting and positioning block 3;
the leveling mechanism is detachably arranged on the bottom plate 1 and is used for supporting and leveling a workpiece;
and the pressing mechanism 6 is detachably arranged on the bottom plate 1 and is used for pressing the workpiece to prevent the workpiece from moving.
As shown in fig. 4, the structure of the workpiece to be clamped by the clamp is schematically illustrated, an included angle exists between two main processing surfaces of the workpiece, the included angle may be 90 °, 95 °, 85 ° or 60 ° at present, the two processing surfaces are respectively provided with a plurality of through holes, the precision of the through holes may affect the performance of the engine, and if the workpiece is calibrated and fixed for multiple times, the processing precision may be affected.
When the device is used, a workpiece is placed on the leveling mechanism, the workpiece is supported and leveled through the leveling mechanism, meanwhile, the end part of the workpiece is clamped at the L-shaped boss 36 on the support positioning block 3 and the L-shaped boss formed by the limit supporting body 2 and the side pressure plate 26 in a surrounding mode respectively to achieve positioning, the position of the workpiece can be adjusted through the third adjusting bolt 27 and the first adjusting bolt 21, and the workpiece is compressed through the compression mechanism 6 to prevent the workpiece from moving. The fixture can realize one-time correction and clamping of important machined surfaces, reduces clamping times, avoids machining errors caused by non-uniform product references due to repeated fixture replacement and repeated alignment, and meets the requirements of special-shaped parts on space angles and sizes; meanwhile, the working efficiency and the qualification rate are improved.
Illustratively, a first lower pressing plate 23 for pressing a workpiece is mounted at the top of the limiting support body 2 through a pressing bolt 22; the central axis of the third adjusting bolt 27 and the central axis of the first adjusting bolt 21 are perpendicular to each other.
Specifically, the first lower pressing plate 23 is provided with a long circular hole, the pressing bolt 22 penetrates through the long circular hole, the position of the pressing bolt 22 in the long circular hole can be adjusted by pushing the first lower pressing plate 23, so that the area of the first lower pressing plate 23 pressed on the surface of the workpiece is adjusted, an adjusting support 24 for supporting is arranged below the first lower pressing plate 23 which is not pressed on the surface of the workpiece, the adjusting support comprises a support body and a screw rod integrally connected with the support body, and the screw rod is in threaded connection with the limiting support body. The screw rod is rotated to adjust the contact of the support body and the lower surface of the first lower pressing plate 23, so that the first lower pressing plate 23 is supported.
Illustratively, the support positioning block 3 includes a support platform 31 and a support backrest 32 vertically disposed on the upper surface of the support platform 31, the L-shaped boss 36 is located on the upper surface of the support platform 31, and a fourth adjusting bolt 33 for positioning the workpiece is screwed on the support backrest 32.
When the workpiece size is small, the end part of the workpiece can be clamped at the right-angle included angle on the inner side of the L-shaped boss 26, when the workpiece size is large, the position of the supporting and positioning block 3 can be adjusted, or the end part of the workpiece can be clamped on the right-angle edge on the outer side of the L-shaped boss 26, and the workpiece can be fixedly positioned through the first adjusting bolt 33 on the supporting backrest 23.
Specifically, the support backrest 32 is parallel to the side pressing plates 26, and the vertical sides of the L-shaped bosses 36 are parallel to the side pressing plates 26.
Specifically, the upper surface of the supporting platform 31 is provided with a through fixing hole 34, a fixing bolt 35 is screwed in the fixing hole 34, and the supporting and positioning block 3 is fixed on the bottom plate 1 through the fixing bolt 35.
The bottom plate 1 is provided with a plurality of first mounting holes 11 for screwing the fixing bolts 35, and the first mounting holes 11 can conveniently support the movement of the positioning block 3.
Illustratively, the leveling mechanism includes a plurality of support posts removably mounted on the base plate 1.
Specifically, the support column comprises a flat top support 4 for supporting a plane and a dome support 5 for supporting a curved surface, and the flat top support 4 and the dome support 5 are screwed with the base plate 1.
The bottom plate 1 is provided with a plurality of second mounting holes 12 for screwing the flat top support 4 and the dome support 5.
Illustratively, the pressing mechanism 6 includes a second lower pressing plate 61, a stud 62, a second fastening nut 63 and a pressing plate support 66;
the stud 62 is screwed on the bottom plate 1, the second lower pressing plate 61 is provided with a long round hole, the stud 62 penetrates through the long round hole, the stud 62 above the second lower pressing plate 61 is screwed with a second fastening nut 63, and the second lower pressing plate 61 is used for pressing the surface of a workpiece; a detachable pressure plate support 66 for supporting the second lower pressure plate 61 is also arranged below the second lower pressure plate 61.
And a plurality of third mounting holes 13 for screwing the studs 62 are formed in the bottom plate 1.
The upper and lower surfaces of the bottom plate 1 are provided with fixing nuts 64 which are sleeved on the studs 62 and are in threaded connection with the studs 62, and the fixing nuts are used for fixing the studs 62 on the bottom plate 1.
Specifically, a fifth adjusting bolt 65 for pressing the workpiece is further screwed on the second lower pressure plate 61.
Specifically, the pressure plate support member 66 may be a jack, or may be a component including a base, an adjusting rod and a support portion, wherein the adjusting rod is connected to the base by a thread, the support portion is fixed to the top of the adjusting rod, and the height of the support portion can be adjusted by rotating the adjusting rod.
Illustratively, the side pressure plate 26 is provided with a strip-shaped through key slot, a second adjusting bolt 25 is inserted into the through key slot, and the side pressure plate 26 is fixed on the position limiting support body 2 through the second adjusting bolt 25. The long round holes are convenient for adjusting the extending length of the side pressure plates 26 so as to fix workpieces with different shapes and sizes.
Specifically, be equipped with on the spacing supporter 2 and be used for inserting the protruding key of establishing the through key groove, and protruding key is the same with the width that link up the key groove for protruding key forms clearance fit with the through key groove, and link up the key groove and can follow protruding key slip, and second adjusting bolt 25 spiro union is on protruding key.
Illustratively, the periphery of the bottom plate 1 is provided with a notch 14, a support bolt 15 is inserted into the notch 14, and a first fastening nut 16 is screwed on the support bolt 15.
After the fixture is used for the first time and is completely adjusted and fixed, a workpiece is clamped, and then the fourth adjusting bolt 33, the side pressure plate 26, the third adjusting bolt 27 and the flat/dome support and the like are finely adjusted every time the workpiece is replaced, so that the rapid positioning correction can be realized. In this example, the bottom plate 1 and the limiting support body 2 are integrally welded and then processed, and the first mounting hole 11, the second mounting hole 12 and the third mounting hole 13 of the bottom plate 1 can be manufactured according to the positioning and supporting positions of different products, so that the positioning, correcting and processing of different products can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a quick location of polyhedron dysmorphism piece rectifies anchor clamps which characterized in that: the method comprises the following steps:
a bottom plate (1),
the limiting support body (2) is fixed at one corner of the upper surface of the bottom plate (1), a detachable side pressure plate (26) is arranged on the limiting support body (2), the side pressure plate (26) and the limiting support body (2) form an L shape, and a third adjusting bolt (27) and a first adjusting bolt (21) for positioning a workpiece are respectively screwed on the side pressure plate (26) and the limiting support body (2);
the supporting and positioning block (3) is detachably mounted on the bottom plate (1), the supporting and positioning block (3) is positioned on the oblique opposite surface of the limiting support body (2), and an L-shaped boss (36) which is matched with the third adjusting bolt (27) and the first adjusting bolt (21) for use and used for positioning a workpiece is arranged on the upper surface of the supporting and positioning block (3);
the leveling mechanism is detachably arranged on the bottom plate (1) and is used for supporting and leveling a workpiece;
and the pressing mechanism (6) is detachably arranged on the bottom plate (1) and is used for pressing the workpiece to prevent the workpiece from moving.
2. A polyhedral rapid prototyping fixture as recited in claim 1 wherein: a first lower pressing plate (23) used for pressing a workpiece is mounted at the top of the limiting support body (2) through a pressing bolt (22); the central axis of the third adjusting bolt (27) is perpendicular to the central axis of the first adjusting bolt (21).
3. A polyhedral rapid prototyping fixture as recited in claim 1 wherein: the supporting and positioning block (3) comprises a supporting platform (31) and a supporting backrest (32) vertically arranged on the upper surface of the supporting platform (31), the L-shaped boss (36) is located on the upper surface of the supporting platform (31), and a fourth adjusting bolt (33) used for positioning a workpiece is screwed on the supporting backrest (32).
4. A polyhedral special shaped element rapid positioning correction clamp according to claim 3, characterized in that: the support backrest (32) is parallel to the side pressing plates (26), and the vertical edges of the L-shaped bosses (36) are parallel to the side pressing plates (26).
5. A polyhedral special shaped element rapid positioning correction clamp according to claim 3, characterized in that: the upper surface of the supporting platform (31) is provided with a through fixing hole (34), a fixing bolt (35) is screwed in the fixing hole (34), and the supporting and positioning block (3) is fixed on the bottom plate (1) through the fixing bolt (35).
6. A polyhedral rapid prototyping fixture as recited in claim 1 wherein: the leveling mechanism comprises a plurality of supporting columns which are detachably arranged on the bottom plate (1).
7. A polyhedral rapid prototyping fixture as recited in claim 6 wherein: the supporting column comprises a flat top support (4) for supporting a plane and a dome support (5) for supporting a curved surface, and the flat top support (4) and the dome support (5) are in threaded connection with the bottom plate (1).
8. A polyhedral rapid prototyping fixture as recited in claim 1 wherein: the pressing mechanism (6) comprises a second lower pressing plate (61), a stud (62), a second fastening nut (63) and a pressing plate support (66);
the stud (62) is screwed on the bottom plate (1), the second lower pressing plate (61) is provided with a long round hole, the stud (62) penetrates through the long round hole, a second fastening nut (63) is screwed on the stud (62) above the second lower pressing plate (61), and the second lower pressing plate (61) is used for pressing the surface of a workpiece; a detachable pressing plate supporting piece (66) used for supporting the second lower pressing plate (61) is further arranged below the second lower pressing plate (61).
9. A polyhedral rapid prototyping fixture as recited in claim 8 wherein: and a fifth adjusting bolt (65) for pressing the workpiece is further screwed on the second lower pressure plate (61).
10. A polyhedral rapid prototyping fixture as recited in claim 1 wherein: the side pressure plates (26) are provided with strip-shaped through key grooves, second adjusting bolts (25) are inserted into the through key grooves, and the side pressure plates (26) are fixed on the limiting support body through the second adjusting bolts (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979800.4U CN216000191U (en) | 2021-08-23 | 2021-08-23 | Quick positioning and correcting clamp for polyhedron special-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979800.4U CN216000191U (en) | 2021-08-23 | 2021-08-23 | Quick positioning and correcting clamp for polyhedron special-shaped part |
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| Publication Number | Publication Date |
|---|---|
| CN216000191U true CN216000191U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121979800.4U Active CN216000191U (en) | 2021-08-23 | 2021-08-23 | Quick positioning and correcting clamp for polyhedron special-shaped part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139235A (en) * | 2022-05-27 | 2022-10-04 | 山西柴油机工业有限责任公司 | Multi-station rapid clamping device and method for small special-shaped parts |
| CN116000668A (en) * | 2023-01-13 | 2023-04-25 | 杭州同创顶立机械有限公司 | Machining tool and machining process for bending plate for agricultural machinery |
-
2021
- 2021-08-23 CN CN202121979800.4U patent/CN216000191U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139235A (en) * | 2022-05-27 | 2022-10-04 | 山西柴油机工业有限责任公司 | Multi-station rapid clamping device and method for small special-shaped parts |
| CN116000668A (en) * | 2023-01-13 | 2023-04-25 | 杭州同创顶立机械有限公司 | Machining tool and machining process for bending plate for agricultural machinery |
| CN116000668B (en) * | 2023-01-13 | 2023-08-04 | 杭州同创顶立机械有限公司 | Machining tool and machining process for bending plate for agricultural machinery |
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