CN210024524U - Clamp for machining inner crank arm - Google Patents
Clamp for machining inner crank arm Download PDFInfo
- Publication number
- CN210024524U CN210024524U CN201920801125.2U CN201920801125U CN210024524U CN 210024524 U CN210024524 U CN 210024524U CN 201920801125 U CN201920801125 U CN 201920801125U CN 210024524 U CN210024524 U CN 210024524U
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- spline shaft
- bottom plate
- vertical
- workpiece
- hole
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Abstract
A clamp for machining an inner crank arm comprises a bottom plate, wherein one side of the bottom plate is provided with a vertical correction plane, a gear-shaped through hole is formed in the center of the bottom plate, a spline shaft for positioning is arranged in the through hole, the upper end of the spline shaft is matched and connected with a workpiece, and the vertical center line of a positioning mark hole in the workpiece is superposed with the vertical center line of the bottom plate; a fixed pressing plate is arranged above the workpiece, and the workpiece and the spline shaft are fixed by arranging a stop screw on the fixed pressing plate; the correction plane is perpendicular to the vertical central line of the bottom plate; the spline shaft and the bottom plate are mutually vertical and are connected and fixed through welding; the center line of the top of one key groove of the spline shaft is vertical to the correction plane; the upper end of the spline shaft is provided with a threaded hole. The utility model discloses simple structure, stability is good, safe and reliable adopts this anchor clamps to make product quality obtain guaranteeing, practices thrift process time, has improved production efficiency, has reduced manufacturing cost.
Description
Technical Field
The utility model relates to a field of interior turning arm processing especially relates to an anchor clamps are used in interior turning arm processing.
Background
A spline through hole and a positioning mark hole are arranged on the left side of an inner crank arm, and a circular through hole is required to be machined on the right side of the spline through hole according to machining requirements, so that the center of the circular through hole and the center of the spline through hole are on the same straight line; in addition, the shape of the inner crank arm needs to be processed to the required size; because the inner crank arm is a special-shaped body, the outer surface of the inner crank arm is arc-shaped, and the inner crank arm is lack of a processing reference and difficult to position a round through hole, thereby causing low processing efficiency, unstable product quality, influencing the one-time qualification rate of products and increasing the production cost.
Disclosure of Invention
The utility model aims at providing an anchor clamps are used in processing of interior turning arm, simple structure is convenient for establish the processing benchmark, has solved above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides an anchor clamps are used in processing of interior turning arm which characterized in that: the device comprises a bottom plate, wherein a vertical correction plane is arranged on one side of the bottom plate, a gear-shaped through hole is formed in the center of the bottom plate, a spline shaft for positioning is arranged in the through hole, the upper end of the spline shaft is matched and connected with a workpiece, and the vertical center line of a positioning mark hole in the workpiece is superposed with the vertical center line of the bottom plate; a fixed pressing plate is arranged above the workpiece, and the workpiece and the spline shaft are fixed by arranging a stop screw on the fixed pressing plate.
Preferably: the correction plane is perpendicular to the vertical central line of the bottom plate.
Preferably: the spline shaft and the bottom plate are mutually vertical and are connected and fixed through welding.
Preferably: the center line of the top of one key groove of the spline shaft is vertical to the correction plane.
Preferably: the upper end of the spline shaft is provided with a threaded hole.
The utility model has the advantages that; a clamp for machining an inner crank arm is characterized in that a base plate is circular, so that a center reference of the base plate can be found conveniently, one side of the base plate is provided with a vertical plane and is perpendicular to a vertical center line of the base plate, the vertical plane is used for correcting the reference, the accuracy is improved, and the machining stability is ensured; the spline shaft is matched with the spline through hole of the workpiece, so that the workpiece is effectively limited and the spline shaft and the spline through hole are ensured to be concentric; the workpiece is fixed with the spline shaft by arranging the stop screw on the pressure plate, so that the clamping stability is further improved; the utility model has simple structure, good stability, safety and reliability, and can quickly find the center line of the key slot as a reference by adjusting the position of the limit mark hole and the corresponding key slot top, thereby quickly determining the position of the hole to be processed on the workpiece and processing the appearance of the workpiece by adopting the reference; by adopting the clamp, the product quality is ensured, the processing time is saved, the production efficiency is improved, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
in the figure: 1. a base plate; 2. correcting the plane; 3. a spline shaft; 3-1, key groove; 4. a workpiece; 5. positioning the marking hole; 6. fixing the pressing plate; 7. a set screw; 8. a threaded bore.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: the utility model provides an anchor clamps are used in processing of interior turning arm which characterized in that: the device comprises a circular bottom plate 1, wherein a vertical correction plane 2 is arranged on one side of the bottom plate 1, a gear-shaped through hole is formed in the center of the bottom plate 1, a spline shaft 3 for positioning is arranged in the through hole, the upper end of the spline shaft 3 is matched and connected with a workpiece 4, and the vertical center line of a positioning mark hole 5 in the workpiece 4 is superposed with the vertical center line of the bottom plate 1; a fixed pressure plate 6 is arranged above the workpiece 4, and the workpiece 4 and the spline shaft 3 are fixed by arranging a stop screw 7 on the fixed pressure plate 6.
The correction plane 2 is perpendicular to the vertical central line of the bottom plate 1; the spline shaft 3 and the bottom plate 1 are mutually vertical and are connected and fixed through welding; the center line of the top of one key groove 3-1 of the spline shaft 3 is vertical to the correction plane 2; the upper end of the spline shaft 3 is provided with a threaded hole 8.
The utility model discloses a concrete implementation: the shape of the spline shaft is the same as that of the spline through hole of the workpiece, and the spline shaft is arranged at the center of the bottom plate and is vertical to the bottom plate, so that the center line of the spline shaft is superposed with that of the bottom plate; because the center line of the top of one spline of the spline shaft is perpendicular to the correction plane, when the workpiece is matched with the spline shaft, as long as the vertical center line of the positioning mark hole is ensured to be perpendicular to the center line of the correction plane, the horizontal center line and the vertical center line of the bottom plate can be used as the reference of the hole to be processed, and the reference is adopted to process the appearance of the workpiece. The utility model discloses simple structure, stability is good, safe and reliable adopts this anchor clamps to make product quality obtain guaranteeing, practices thrift process time, has improved production efficiency, has reduced manufacturing cost.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. The utility model provides an anchor clamps are used in processing of interior turning arm which characterized in that: the device comprises a circular bottom plate (1), wherein a vertical correction plane (2) is arranged on one side of the bottom plate (1), a gear-shaped through hole is formed in the center of the bottom plate (1), a spline shaft (3) for positioning is arranged in the through hole, the upper end of the spline shaft (3) is matched and connected with a workpiece (4), and the vertical central line of a positioning mark hole (5) in the workpiece (4) is superposed with the vertical central line of the bottom plate (1); a fixed pressing plate (6) is arranged above the workpiece (4), and the workpiece (4) and the spline shaft (3) are fixed by arranging a stop screw (7) on the fixed pressing plate (6).
2. The jig for inner crank arm machining according to claim 1, characterized in that: the vertical central lines of the correction plane (2) and the bottom plate (1) are mutually vertical.
3. The jig for inner crank arm machining according to claim 1, characterized in that: the spline shaft (3) and the bottom plate (1) are mutually vertical and are connected and fixed through welding.
4. The jig for inner crank arm machining according to claim 1, characterized in that: the center line of the top of one key groove (3-1) of the spline shaft (3) is vertical to the correction plane (2).
5. The jig for inner crank arm machining according to claim 1, characterized in that: the upper end of the spline shaft (3) is provided with a threaded hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801125.2U CN210024524U (en) | 2019-05-30 | 2019-05-30 | Clamp for machining inner crank arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801125.2U CN210024524U (en) | 2019-05-30 | 2019-05-30 | Clamp for machining inner crank arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210024524U true CN210024524U (en) | 2020-02-07 |
Family
ID=69345602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920801125.2U Active CN210024524U (en) | 2019-05-30 | 2019-05-30 | Clamp for machining inner crank arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210024524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241269A (en) * | 2021-04-26 | 2021-08-10 | 广西电网有限责任公司电力科学研究院 | GIS switch transmission device |
| CN113400067A (en) * | 2020-03-16 | 2021-09-17 | 河南平高电气股份有限公司 | Coupling processing location frock |
-
2019
- 2019-05-30 CN CN201920801125.2U patent/CN210024524U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400067A (en) * | 2020-03-16 | 2021-09-17 | 河南平高电气股份有限公司 | Coupling processing location frock |
| CN113400067B (en) * | 2020-03-16 | 2023-02-17 | 河南平高电气股份有限公司 | Coupling processing location frock |
| CN113241269A (en) * | 2021-04-26 | 2021-08-10 | 广西电网有限责任公司电力科学研究院 | GIS switch transmission device |
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