CN213730457U - Free centering center frame - Google Patents
Free centering center frame Download PDFInfo
- Publication number
- CN213730457U CN213730457U CN202022648530.0U CN202022648530U CN213730457U CN 213730457 U CN213730457 U CN 213730457U CN 202022648530 U CN202022648530 U CN 202022648530U CN 213730457 U CN213730457 U CN 213730457U
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- center frame
- cylinder
- casing
- base plate
- gyro wheel
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Abstract
The utility model discloses a free centering center frame, including casing seat and center frame casing, the center frame casing is fixed in casing seat top, center frame casing axial evenly is equipped with a plurality of cylinder mount pads, install the cylinder in the cylinder mount pad, the output of cylinder passes center frame casing and extends to center frame casing is inside, the output of cylinder is connected with the gyro wheel frame, be connected with the gyro wheel through the roller shaft on the gyro wheel frame, the central axis slope of the central axis of gyro wheel and center frame casing sets up, the utility model has the advantages of be convenient for support screw thread form long and thin work piece.
Description
Technical Field
The utility model relates to the technical field of machining, specifically be a free centering centre frame.
Background
The center frame is an auxiliary device used for radially supporting and rotating a workpiece in the machining process, and does not move axially relative to the workpiece in the machining process. The center frame is directly supported in the middle of the workpiece, when the workpiece can be turned in a segmented mode, the center frame is supported in the middle of the workpiece, so that the L/d value is reduced by half, the rigidity of the slender shaft during turning can be increased by several times, however, when the spiral slender workpiece is supported by the conventional center frame, due to the spiral special structure, the positioning accuracy is low, the spiral slender workpiece cannot freely move axially, and after the spiral slender workpiece is machined for a period of time, the workpiece needs to be loosened to move the workpiece, then the centering support is carried out again, and therefore the problem of low machining efficiency is caused.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a free centering center frame, includes casing seat and center frame casing, the center frame casing is fixed in casing seat top, center frame casing axial evenly is equipped with a plurality of cylinder mount pads, install the cylinder in the cylinder mount pad, the output of cylinder passes center frame casing and extends to center frame casing is inside, the output of cylinder is connected with the gyro wheel frame, be connected with the gyro wheel through the roller shaft on the gyro wheel frame, the central axis slope of the central axis of gyro wheel and center frame casing sets up.
Preferably, the number of the cylinder mounting seats is three, and the three cylinder mounting seats are arranged in a triangular shape.
Preferably, the center frame shell is annular, and the three cylinder installation seats are respectively arranged at intervals of 120 degrees.
Preferably, the shell base comprises an upper base plate, a connecting plate and a lower base plate, the upper base plate is connected with the lower base plate through the connecting plate, the upper base plate is provided with a bolt hole, the top of the connecting plate is fixedly connected with the upper base plate, the bottom of the connecting plate is fixedly connected with the lower base plate, and the base plate is provided with a fixing groove.
Preferably, the rear side of the connecting plate is also vertically provided with a reinforcing plate.
Compared with the prior art, the beneficial effects of the utility model are that be provided with cylinder, gyro wheel frame and gyro wheel, promote gyro wheel frame and gyro wheel through the cylinder and carry out centering supporting to the long and thin work piece of heliciform, different gyro wheels deflect different angles and the long and thin work piece of heliciform is corresponding for the long and thin work piece of heliciform can carry out axial displacement through the rotation, thereby the work piece of being convenient for is processed, promotes machining efficiency.
Drawings
FIG. 1 is a schematic diagram of the front end structure of the present invention;
FIG. 2 is a schematic diagram of the rear end structure of the present invention;
FIG. 3 is a schematic view of the supporting workpiece of the present invention;
in the figure: 1. a steady rest housing; 2. a cylinder mounting seat; 3. a cylinder; 4. a roller frame; 5. a roller; 6. an upper base plate; 7. a connecting plate; 8. a lower base plate; 9. fixing grooves; 10. a reinforcing plate; 11. a helical elongate workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.
Referring to fig. 1, a free centering center frame includes a housing base and a center frame housing 1, the center frame housing 1 is fixed above the housing base, the center frame housing 1 is hollow and annular, the center frame housing 1 is axially and uniformly provided with cylinder mounting bases 2, preferably 3 cylinder mounting bases 2, three cylinder mounting bases 2 are respectively arranged at intervals of 120 ° and in a triangle, the cylinder mounting bases 2 are provided with cylinders 3, the output ends of the cylinders 3 penetrate through the center frame housing 1 and extend towards the inside of the center frame housing 1, the output ends of the cylinders 3 are connected with roller frames 4, the roller frames 4 are connected with rollers 5 through roller shafts, the central axis of the rollers 5 is inclined with the central axis of the center frame housing 1, three pairs of the cylinders 3, the roller frames 4 and the rollers 5 are correspondingly provided, each pair includes a cylinder 3, a roller frame 4 and a roller 5, as shown in fig. 3, the middle of the three rollers 5 is clamped with a spiral elongated workpiece 11, the central axes of the three rollers 5 are obliquely arranged with the central axis of the center frame shell 1, that is, the planes of the three rollers 5 are deflected by a certain angle relative to the plane of the center frame shell 1, the purpose is to match the spiral surface of the spiral elongated workpiece 11 to perform rotary axial motion, when the existing supporting workpiece is used for processing the rod-shaped elongated workpiece of the standard brick, the three rollers with the planes perpendicular to the plane of the center frame shell 1 are used for supporting, the axial motion of the workpiece can be realized during centering, in the application, the three cylinders 3 respectively drive the respective roller frames 4 to perform radial motion relative to the center frame shell 1 through the output ends, thereby realizing the clamping and supporting of the spiral elongated workpiece, and through the three rollers 5 deflected by a certain angle, the helical elongated workpiece can be rotationally and axially moved. The shell base comprises an upper base plate 6, a connecting plate 7 and a lower base plate 8, the upper base plate 6 is connected with the lower base plate 8 through the connecting plate 7, a bolt hole (not shown) is arranged on the upper base plate 6, the bolt hole penetrates through the upper base plate 6 to be connected with the bottom of the central frame shell 1 through a bolt, the top of the connecting plate 7 is fixedly welded with the upper base plate 6, the bottom is fixedly welded with the lower base plate 8, the connecting plate 7 is integrally isosceles trapezoid, inclined planes at two sides can be mutually staggered with the cylinder mounting bases 2 and the cylinders 3 at two sides of the central frame shell 1, the installation of the cylinders 3 is not influenced, a fixing groove 9 is arranged on the base plate, the fixing groove 9 is used for fixing the lower base plate 8 and a corresponding fixing surface, the width of the connecting plate 7 is not too large, a reinforcing plate 10 can be vertically arranged at the rear side of the connecting plate 7, the upper side and the lower side of the reinforcing plate 10 are respectively connected with the upper base plate 6 and the lower base plate 8, for strengthening the support.
The utility model discloses an application principle does: firstly, a bolt-shaped long and thin workpiece is placed in a center frame shell 1, then three cylinders 3 are driven to drive three roller frames 4 and rollers 5 to clamp and support the bolt-shaped long and thin workpiece, when the position of the bolt-shaped long and thin workpiece needs to be moved for a period of time, the bolt-shaped long and thin workpiece is rotated and pushed to move axially, so that the bolt-shaped long and thin workpiece can be centered, free axial movement of the bolt-shaped long and thin workpiece can be realized, and the processing efficiency is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A free centering steady rest, its characterized in that: including casing seat and centre frame casing (1), centre frame casing (1) is fixed in casing seat top, centre frame casing (1) axial evenly is equipped with a plurality of cylinder mount pads (2), install cylinder (3) in cylinder mount pad (2), the output of cylinder (3) passes centre frame casing (1) and extends to centre frame casing (1) inside, the output of cylinder (3) is connected with gyro wheel frame (4), be connected with gyro wheel (5) through the roller shaft on gyro wheel frame (4), the central axis of gyro wheel (5) sets up with the central axis slope of centre frame casing (1).
2. The free centering steady rest of claim 1, wherein: the number of the cylinder mounting seats (2) is three, and the three cylinder mounting seats (2) are arranged in a triangular mode.
3. The free centering steady rest of claim 2, wherein: the center frame shell (1) is annular, and the three cylinder mounting seats (2) are arranged at intervals of 120 degrees respectively.
4. The free centering steady rest of claim 3, wherein: the shell base comprises an upper base plate (6), a connecting plate (7) and a lower base plate (8), the upper base plate (6) is connected with the lower base plate (8) through the connecting plate (7), the upper base plate (6) is provided with a bolt hole, the top of the connecting plate (7) is fixedly connected with the upper base plate (6), the bottom of the connecting plate (7) is fixedly connected with the lower base plate (8), and the bottom plate is provided with a fixing groove (9).
5. The free centering steady rest of claim 4, wherein: and a reinforcing plate (10) is also vertically arranged on the rear side of the connecting plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022648530.0U CN213730457U (en) | 2020-11-17 | 2020-11-17 | Free centering center frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022648530.0U CN213730457U (en) | 2020-11-17 | 2020-11-17 | Free centering center frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213730457U true CN213730457U (en) | 2021-07-20 |
Family
ID=76824936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022648530.0U Active CN213730457U (en) | 2020-11-17 | 2020-11-17 | Free centering center frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213730457U (en) |
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2020
- 2020-11-17 CN CN202022648530.0U patent/CN213730457U/en active Active
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