CN217667864U - 60-degree wedge-shaped clamp for clamping small allowance of forging and casting - Google Patents
60-degree wedge-shaped clamp for clamping small allowance of forging and casting Download PDFInfo
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- CN217667864U CN217667864U CN202221801825.XU CN202221801825U CN217667864U CN 217667864 U CN217667864 U CN 217667864U CN 202221801825 U CN202221801825 U CN 202221801825U CN 217667864 U CN217667864 U CN 217667864U
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Abstract
The utility model belongs to the technical field of the numerical control processing of aircraft forging and casting part, a 60 wedge anchor clamps of little surplus centre gripping of forging and casting is related to. The utility model discloses the installation is fixed simple, and the simple operation adopts 60 wedge structure centre gripping, can satisfy the centre gripping requirement of little surplus, and the effective surplus of utilizing the woollen completely carries out the clamping, and intensity is reliable simultaneously, can not bring the not enough problem of intensity. The wedge structure mainly leans on the wedge clamp force, and this power can produce horizontal and two vertical direction centre gripping effects, makes the woollen transversely fixed, vertical taut, and whole clamping state is firm and stable, and can not produce extra unnecessary clamping stress, is favorable to the stability of product course of working. The clamp plate is adopted for clamping, and the tail part of the clamp plate is designed with a special protruding structure which is matched with the recess of the clamp base body, so that the clamping state of the clamp plate is more stable. The whole clamping of the clamp is realized only by the screw, and the operation is simple.
Description
Technical Field
The utility model belongs to the technical field of the numerical control processing of aircraft forging and casting part, a little surplus centre gripping 60 wedge anchor clamps of forging and casting are related to.
Background
The forging casting blank belongs to a very common blank form in an airplane part, the blank is technically characterized in that the shape and the size of the blank are very close to those of a part body, a uniform-discharge process strategy is adopted, the allowance to be machined is small, the material removal rate is small, and the whole machining process is obviously reduced compared with a plate part. The specific allowance size of the blank is slightly different according to specific conditions, the blank generally presents an even allowance state of 3mm or less than 3mm under most conditions, and complete processing of related structural characteristics can be completed only by one-time rough processing and one-time finish processing during actual processing. However, the process strategy also brings some problems, in the steps of reference alignment and clamping preparation before machining, the machining allowance of the positioning clamping surface is small, so that the traditional pressing plate pressing cannot be used, the positioning is not easy to be accurate, in addition, the material characteristics of the die forging blank are large in internal stress and easy to deform, and great difficulty is brought to the clamping positioning of numerical control machining. If adopt inseparable vice powerful to press from both sides tightly, can produce great centering clamping stress, lead to appearing great stress deformation in the course of working, influence subsequent processingquality, if the scheme that adopts the special fixture design realizes, the anchor clamps experience is more complicated, it is very high to use the maintenance cost, and the commonality is not good, can increase extra cost, consequently, need a commonality better, be applicable to 3mm and following surplus centre gripping requirement, do not increase the commonality anchor clamps of extra clamping stress, in order to satisfy quick in the numerical control processing, accurate processing demand.
SUMMERY OF THE UTILITY MODEL
In view of the above reasons, the 60-degree wedge-shaped clamp for clamping the small allowance of the forging casting is designed, the clamp adopts a 60-degree wedge-shaped structure to tension and clamp a blank by utilizing wedge-shaped component force, and has a positioning structure, so that a simple positioning function can be realized, the positioning problem in a small allowance state is solved, the clamping problem is solved, and the smooth establishment of a subsequent process scheme is ensured.
The technical scheme of the utility model as follows:
the wedge-shaped fixture is made of steel integrally, so that the wear resistance and reliability of the fixture main body are guaranteed, the wedge-shaped structure of the fixture adopts a 60-degree angle design, firstly, a triangular area for clamping can be guaranteed to have sufficient strength in a 60-degree state due to the 60-degree angle, secondly, when the allowance is 2-3mm, the 60-degree angle can also guarantee sufficient clamping strength on a blank body, and moreover, 60-degree wedge-shaped cutters are common, so that the daily processing and use can be met, and the wedge-shaped fixture can be completed without special cutters.
A60-degree wedge-shaped clamp for clamping small allowance of a forging casting comprises a clamp base body, a pressing plate, a screw, a pressing plate groove, a hoisting hole, a positioning pin, a bolt hole and a 60-degree wedge-shaped groove;
the clamp base body is of a square structure and is of a bilaterally symmetrical structure, the clamp base body is of a main body structure for bearing other parts and is used for supporting the part in the Z direction of a positioning surface, when the pressing plate is clamped, the part can be fixed by the clamp base body, and meanwhile, the clamp base body is provided with a positioning pin and a bolt hole;
the clamp comprises a clamp base body, a pressing plate and a clamping component, wherein the pressing plate is mainly used for being matched with a groove of the clamp base body, a through hole is formed in the middle of the pressing plate, the pressing plate and the clamp base body are assembled in series through a screw, the pressing plate serves as a movable part to complete transverse clamping action of a part, and meanwhile, a downward pulling wedge-shaped force is provided to tightly lock the part on the upper surface of the clamp base body;
the screw is used for connecting the pressing plate and the clamp base body in series, and the clamping is realized by utilizing the thread structure of the screw, so that the firmness and reliability of the clamping state are ensured;
the pressing plate groove is matched with a corresponding structure of the pressing plate, the pressing plate is limited and guided in a stroke way, and meanwhile, a certain counter pull force is provided, so that the wedge-shaped clamping of the pressing plate is more stable;
the hoisting hole is a hoisting clamp, completes the operations of displacement, replacement and the like of the clamp and is positioned on the side surface of the clamp base body; the positioning hole is used for inserting a positioning pin, and positioning of the part blank is realized through limiting so as to meet the subsequent clamping requirement;
the positioning pin is designed by adopting h 6-level precision, the surface roughness of the positioning pin requires Ra0.8, and the positioning pin mainly plays a role in exposing a part of the positioning pin after being inserted into the positioning hole to finish the precise positioning of the blank; the bolt hole is formed by utilizing the structure of the clamp and using bolts to realize the installation of the clamp, so that other additional production space is not occupied;
the 60-degree wedge-shaped groove is matched with a reverse 60-degree wedge-shaped structure formed in a part blank, when a pressure plate is used for clamping, the blank is clamped, transverse and longitudinal clamping force is provided, and clamping of the blank is completed.
The positioning holes and the bolt holes are located on the upper surface of the clamp base body. The pressing plate is positioned on the adjacent surface of the hoisting hole.
The beneficial effects of the utility model reside in that:
(1) The installation is fixed simple, and the simple operation adopts 60 wedge structure centre gripping, can satisfy the centre gripping requirement of little surplus, and the effective surplus who utilizes the woollen completely carries out the clamping, and intensity is reliable simultaneously, can not bring the not enough problem of intensity.
(2) The wedge structure mainly leans on the wedge clamp force, and this power can produce horizontal and two vertical direction centre gripping effects, makes the woollen transversely fixed, vertical taut, and whole clamping state is firm and stable, and can not produce extra unnecessary clamping stress, is favorable to the stability of product course of working.
(3) The clamp plate is adopted for clamping, and the tail part of the clamp plate is designed with a special protruding structure which is matched with the recess of the clamp base body, so that the clamping state of the clamp plate is more stable.
(4) The whole clamping of the clamp is realized only by the screw, and the operation is simple.
(5) The clamping scheme and the standardized clamping scheme of the array clamp can be realized by matching with bases in different forms or bases in standardized design, and the array clamp is flexible and changeable and has strong adaptability.
(6) The clamp has simple integral structure and low design and manufacturing cost.
Drawings
Fig. 1 is a view of a small allowance clamping wedge jig.
The attached drawings are as follows: 1, a clamp base body; 2, pressing a plate; 3, screwing; 4 pressing plate grooves; 5, hoisting holes; 6, positioning holes; 7, positioning pins; 8 bolt holes; a 9 deg. wedge groove.
Detailed Description
The invention will now be further described with reference to the accompanying drawings
Example 1:
a60-degree wedge-shaped clamp for clamping a forging casting with small allowance comprises a clamp base body 1, a pressing plate 2, a screw 3, a pressing plate groove 4, a hoisting hole 5, a positioning hole 6, a positioning pin 7, a bolt hole 8 and a 60-degree wedge-shaped groove 9;
the clamp base body 1 is of a square structure and is of a bilaterally symmetrical structure, the clamp base body 1 is of a main body structure for bearing other parts and is used for supporting a part positioning surface in the Z direction, when the pressing plate 2 is clamped, the clamp base body 1 can fix the part, and meanwhile, the clamp base body 1 is provided with positioning pins and bolt hole parts;
the clamp plate 2 is mainly used for being matched with a groove of the clamp base body 1, a through hole is formed in the middle of the clamp plate 2, the clamp plate is connected with the clamp base body 1 in series through a screw 3 and serves as a movable part to complete transverse clamping of a part, and meanwhile, a pulling-down wedge-shaped force is provided to tightly lock the part on the upper surface of the clamp base body;
the screw 3 is used for being connected with the pressing plate 2 and the clamp base body 1 in series, and the clamping is realized by utilizing the thread structure of the screw, so that the firmness and reliability of the clamping state are ensured;
the pressing plate groove 4 is matched with the pressing plate 2 in a corresponding structure, limits the pressing plate 2, guides the stroke of the pressing plate 2, and provides certain counter-pulling force to enable the wedge-shaped clamping of the pressing plate 2 to be more stable;
the hoisting hole 5 is a hoisting clamp, completes the operations of displacement, replacement and the like of the clamp and is positioned on the side surface of the clamp base body 1; the positioning hole 6 is used for inserting the positioning pin 7, and positioning of a part blank is realized through limiting so as to meet the subsequent clamping requirement;
the positioning pin 7 is designed by adopting h 6-level precision, the surface roughness of the positioning pin requires Ra0.8, and the positioning pin mainly plays a role in exposing a part of the positioning pin after being inserted into the positioning hole 6 to finish the precise positioning of the blank; the bolt hole 8 is formed by utilizing the structure of a clamp and installing the clamp by using a bolt, so that other additional production space is not occupied;
the 60-degree wedge-shaped groove 9 is matched with a reverse 60-degree wedge-shaped structure formed in a part blank, when the pressing plate 2 is used for clamping, the blank is clamped, transverse and longitudinal clamping force is provided, clamping of the blank is completed, and the structure is a specific part participating in clamping.
The positioning hole 6 and the bolt hole 8 are positioned on the upper surface of the clamp base body 1. The pressing plate 2 is positioned on the adjacent surface of the hoisting hole 5.
Example 2:
a use method of a wedge-shaped clamp for clamping a 60-degree forging casting by small allowance comprises the following steps:
1, the blank is matched and processed according to the size of a 60-degree wedge-shaped structure of the clamp, the surface roughness of a matching surface is guaranteed to be not less than Ra1.6, and sharp edges and burrs are removed.
2 fixing the clamp on a base or a platform of a machining center, inserting the wedge-shaped structure of the clamp from one side by using the wedge-shaped part of the blank, adjusting and positioning to place the position of the blank at a position meeting the process machining requirement.
3, screwing a screw 3 to pre-tighten the blank on the clamp, and after pre-tightening is finished, utilizing a feeler gauge to carry out inspection, wherein a fit gap is smaller than 0.05mm, so that the processing condition is met.
And 4, after the part is clamped, carrying out the next numerical control machining by the debugging program.
And 5, after finishing the processing, loosening the screw 3 and reversely pushing out the blank semi-finished product.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A wedge-shaped clamp for clamping 60 degrees by small allowance of a forging casting is characterized by comprising a clamp base body (1), a pressing plate (2), a screw (3), a pressing plate groove (4), a hoisting hole (5), a positioning hole (6), a positioning pin (7), a bolt hole (8) and a 60-degree wedge-shaped groove (9);
the clamp is characterized in that the clamp base body (1) is of a square structure and is of a bilaterally symmetrical structure, the clamp base body (1) is of a main body structure for bearing other parts and is used for supporting a part positioning surface in the Z direction, when the pressing plate (2) is clamped, the clamp base body (1) can fix the part, and meanwhile, the clamp base body (1) is provided with a positioning pin and a bolt hole;
the clamp plate (2) is mainly used for being matched with a groove of the clamp base body (1), a through hole is formed in the middle of the clamp plate (2), the clamp plate is connected with the clamp base body (1) in series through a screw (3) and serves as a movable part to complete transverse clamping action of a part, and meanwhile, a pulling-down wedge-shaped force is provided to tightly lock the part on the upper surface of the clamp base body;
the screw (3) is used for being connected with the pressing plate (2) and the clamp base body (1) in series, and the clamping is realized by utilizing the thread structure of the screw, so that the firmness and reliability of the clamping state are ensured;
the pressing plate groove (4) is matched with a corresponding structure of the pressing plate (2) to limit and guide the stroke of the pressing plate (2) and provide certain counter-pulling force at the same time, so that the wedge-shaped clamping of the pressing plate (2) is more stable;
the hoisting hole (5) is a hoisting clamp, completes the operations of displacement, replacement and the like of the clamp and is positioned on the side surface of the clamp base body (1); the positioning hole (6) is used for inserting the positioning pin (7), and positioning of a part blank is realized through limiting so as to meet the subsequent clamping requirement;
the 60-degree wedge-shaped groove (9) is matched with a reverse 60-degree wedge-shaped structure formed in the part blank, when the pressing plate (2) is used for clamping, the blank is clamped, transverse and longitudinal clamping force is provided, clamping of the blank is completed, and the structure is a specific part participating in clamping.
2. A wedge-shaped jig for holding a forging and casting piece with a small margin of 60 ° as claimed in claim 1, wherein the positioning holes (6) and the bolt holes (8) are formed on the upper surface of the jig base body (1); the pressing plate (2) is positioned on the adjacent surface of the hoisting hole (5).
3. The wedge-shaped clamp for clamping the forging casting with the small allowance of 60 degrees as claimed in claim 1 or 2, wherein the wedge-shaped clamp is made of steel integrally, so that the wear resistance and the reliability of a clamp body are guaranteed.
4. The wedge-shaped clamp for clamping the forging casting by the small allowance is characterized in that the positioning pin (7) is designed with h 6-level precision, the surface roughness of the positioning pin requires Ra0.8, and the main function is to expose a part of the positioning pin (6) after the positioning pin is inserted to finish the precise positioning of a blank.
5. The wedge-shaped clamp for clamping the forging casting by the small allowance of 60 degrees as claimed in claim 3, wherein the positioning pin (7) is designed with h 6-level precision, the surface roughness of the positioning pin requires Ra0.8, and the main function is to expose a part of the positioning pin (6) after the positioning pin is inserted to complete the precise positioning of the blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801825.XU CN217667864U (en) | 2022-07-13 | 2022-07-13 | 60-degree wedge-shaped clamp for clamping small allowance of forging and casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801825.XU CN217667864U (en) | 2022-07-13 | 2022-07-13 | 60-degree wedge-shaped clamp for clamping small allowance of forging and casting |
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| Publication Number | Publication Date |
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| CN217667864U true CN217667864U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221801825.XU Active CN217667864U (en) | 2022-07-13 | 2022-07-13 | 60-degree wedge-shaped clamp for clamping small allowance of forging and casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276166A (en) * | 2023-02-27 | 2023-06-23 | 江苏广大鑫盛精密智造有限公司 | Universal tool clamp and application method thereof |
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2022
- 2022-07-13 CN CN202221801825.XU patent/CN217667864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276166A (en) * | 2023-02-27 | 2023-06-23 | 江苏广大鑫盛精密智造有限公司 | Universal tool clamp and application method thereof |
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