CN220680511U - Auxiliary device for determining machining axle center of large-scale crank shaft of dragline excavator - Google Patents
Auxiliary device for determining machining axle center of large-scale crank shaft of dragline excavator Download PDFInfo
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- CN220680511U CN220680511U CN202320624179.2U CN202320624179U CN220680511U CN 220680511 U CN220680511 U CN 220680511U CN 202320624179 U CN202320624179 U CN 202320624179U CN 220680511 U CN220680511 U CN 220680511U
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Abstract
An auxiliary device for determining a machining axle center of a large-sized crank shaft of a dragline excavator relates to the technical field of crank shaft determination machining and comprises a first fixing plate arranged at the front end of a workpiece and a tail fixing device arranged at the rear end of the workpiece, wherein the first fixing plate is connected with the front end of the workpiece through a bolt, the first fixing plate is abutted to a tailstock of a lathe, the tail fixing device is connected with the rear end of the workpiece through a bolt, and the tail fixing device is fixedly arranged on a chuck of a main shaft box of the lathe; through arranging the through holes corresponding to the machining axes of the workpiece on the first fixing plate and the second fixing plate, the through holes are used for assisting in machining the axes of the crank shaft; the tail fixing device is arranged at the rear end of the workpiece, so that the tightness degree of the workpiece on the lathe is conveniently adjusted, and the stability of the workpiece during processing is improved.
Description
Technical Field
The utility model relates to the technical field of crank shaft determining and processing, in particular to an auxiliary device for determining and processing the axle center of a large-sized crank shaft of a dragline.
Background
The crank shaft is an important basic building on the engine, the pull shovel excavator is large, the crank shaft inside the pull shovel excavator is large in size, the large crank shaft is provided with different shaft centers, the requirements on the shaft position degree are high during machining and manufacturing, the machining and manufacturing are very difficult, and due to the fact that the workpiece is high in price, once the workpiece is problematic during machining, the quality of the workpiece is low due to the fact that the workpiece is light, the workpiece is scrapped when the workpiece is severe, and the loss caused to enterprises is extremely large.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses an auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline excavator.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the utility model provides an auxiliary device of large-scale crank axle of dragline confirm processing axle center, includes the first fixed plate that sets up in the work piece front end and sets up the afterbody fixing device in the work piece rear end, and first fixed plate passes through the bolt with the work piece front end and is connected, and first fixed plate butt is on the tailstock of lathe, and afterbody fixing device passes through the bolt with the work piece rear end and is connected, afterbody fixing device fixed mounting is on the chuck of lathe headstock.
The two end faces of the workpiece are respectively provided with a central hole, eccentric holes are distributed around the central holes, the central holes and the eccentric holes are arranged corresponding to the machining axes of the workpiece, and inner threads are arranged on the inner walls of the central holes and the eccentric holes.
The first fixing plate is provided with through holes, each through hole penetrates through the first fixing plate, each through hole of the first fixing plate is correspondingly arranged with the central hole and the eccentric hole of the front end of the workpiece, bolts are arranged in each through hole of the axial center hole for machining and positioning of the first fixing plate except for the axial center, and each bolt on the first fixing plate is in threaded connection with the central hole and the eccentric hole of the front end of the workpiece.
The tail fixing device is composed of a second fixing plate, a third fixing plate, a sleeve, a rotating shaft and a limiting block, wherein the second fixing plate is respectively provided with a perforation, each perforation penetrates through the second fixing plate, each perforation of the second fixing plate is correspondingly arranged with an eccentric hole at the rear end of a workpiece, bolts are arranged in each perforation of the second fixing plate except for an axle center hole for axle center processing and positioning, each bolt on the second fixing plate is in threaded connection with the eccentric hole at the rear end of the workpiece, and one side, far away from the workpiece, of the second fixing plate is provided with the third fixing plate.
The third fixed plate is arranged in parallel with the second fixed plate, the third fixed plate is arranged on a chuck of the lathe spindle box, and the sleeve, the rotating shaft and the limiting block are arranged between the second fixed plate and the third fixed plate.
The bottom surface of one end of the sleeve is connected with the center of one side surface, far away from the workpiece, of the second fixing plate, the eccentric holes of the second fixing plate are formed in the periphery of the sleeve, internal threads are formed in the inner wall of the sleeve, and a rotating shaft is arranged in the sleeve.
One end of the rotating shaft is arranged in the sleeve, an external thread is arranged on the side face of the rotating shaft, the rotating shaft is connected with the sleeve through threads, and a limiting block is arranged at one end of the rotating shaft outside the sleeve.
One end of the limiting block is connected with the bottom surface of the rotating shaft, and the other end of the limiting block is abutted to the side surface of the third fixing plate.
According to the auxiliary device for determining the machining axle center of the large-scale crank shaft of the dragline excavator, through the arrangement of the through holes corresponding to the machining axle centers of the workpieces on the first fixing plate and the second fixing plate, the auxiliary device is used for assisting in machining the axle centers of the crank shaft; the tail fixing device is arranged at the rear end of the workpiece, so that the tightness degree of the workpiece on the lathe is conveniently adjusted, and the stability of the workpiece during processing is improved.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of a three-dimensional structure of a workpiece according to the present utility model;
FIG. 3 is a schematic perspective view of a first fixing plate according to the present utility model;
FIG. 4 is a schematic perspective view of a tail fixing device according to the present utility model;
in the figure: 1. a workpiece; 2. a first fixing plate; 3. a bolt; 4. tail fixing device; 5. a central bore; 6. an eccentric hole; 7. perforating; 8. a second fixing plate; 9. a third fixing plate; 10. a sleeve; 11. a rotating shaft; 12. and a limiting block.
Description of the embodiments
The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.
The auxiliary device for determining the machining axle center of the large-scale crank shaft of the dragline excavator comprises a first fixing plate 2 arranged at the front end of a workpiece 1 and a tail fixing device 4 arranged at the rear end of the workpiece 1, wherein the first fixing plate 2 is connected with the front end of the workpiece 1 through a bolt 3, the first fixing plate 2 is abutted to a tailstock of a lathe, the tail fixing device 4 is connected with the rear end of the workpiece 1 through the bolt 3, and the tail fixing device 4 is fixedly arranged on a chuck of a lathe headstock.
The two end faces of the workpiece 1 are respectively provided with a central hole 5, eccentric holes 6 are distributed around the central holes 5, the central holes 5 and the eccentric holes 6 are correspondingly arranged with the machining axes of the workpiece 1, and internal threads are respectively arranged on the inner walls of the central holes 5 and the eccentric holes 6.
Perforations 7 are distributed on the first fixing plate 2, each perforation 7 penetrates through the first fixing plate 2, each perforation 7 of the first fixing plate 2 is correspondingly arranged with a central hole 5 and an eccentric hole 6 at the front end of the workpiece 1, bolts 3 are arranged in each perforation 7 of the axial center hole for machining and positioning of the first fixing plate 2 except for the axial center, and the bolts 3 on the first fixing plate 2 are in threaded connection with the central hole 5 or the eccentric hole 6 at the front end of the workpiece 1.
The tail fixing device 4 is composed of a second fixing plate 8, a third fixing plate 9, a sleeve 10, a rotating shaft 11 and a limiting block 12, through holes 7 are formed in the second fixing plate 8, each through hole 7 penetrates through the second fixing plate 8, each through hole 7 of the second fixing plate 8 is correspondingly arranged with a central hole 5 and an eccentric hole 6 at the rear end of the workpiece 1, bolts 3 are arranged in each through hole 7 of the second fixing plate 8 except for an axle center processing and positioning axle center hole, the bolts 3 on the second fixing plate 8 are in threaded connection with the central hole 5 or the eccentric hole 6 at the rear end of the workpiece 1, and one side, far away from the workpiece 1, of the second fixing plate 8 is provided with the third fixing plate 9.
The third fixed plate 9 is arranged in parallel with the second fixed plate 8, the third fixed plate 9 is arranged on a chuck of a lathe spindle box, and the sleeve 10, the rotating shaft 11 and the limiting block 12 are arranged between the second fixed plate 8 and the third fixed plate 9.
The sleeve 10 is close to one end of the second fixing plate 9 for blocking, a bolt 3 is arranged at the blocking end of the sleeve 10, the bolt of the sleeve 10 penetrates through the through hole of the second fixing plate 9, the bolt of the sleeve 10 is in threaded connection with the corresponding center hole 5 or eccentric hole 6, internal threads are arranged on the inner wall of the sleeve 10, and a rotating shaft 11 is arranged in the sleeve 10.
One end of the rotating shaft 11 is arranged in the sleeve 10, an external thread is arranged on the side face of the rotating shaft 11, the rotating shaft 11 is connected with the sleeve 10 through threads, and a limiting block 12 is arranged at one end of the rotating shaft 11 outside the sleeve 10.
One end of the limiting block 12 is connected with the bottom surface of the rotating shaft 11, and the other end of the limiting block 12 is abutted against the side surface of the third fixing plate 9.
In the auxiliary device for determining the machining axle center of the large-scale crank shaft of the dragline excavator, the positions of the axle centers are determined on a workpiece 1 at first when the auxiliary device is installed, holes are formed in the positions of the axle centers determined at the two ends of the workpiece 1, corresponding holes 7 are formed in a first fixed plate 2, bolts 3 are installed in the holes 7 of the axle center holes for machining and positioning of the first fixed plate 2 except the axle center, the first fixed plate 2 and the workpiece 1 are fixed, holes are formed in a second fixed plate 8 in the same way, a sleeve 10 is installed in the holes 7 of the second fixed plate 8 corresponding to the second fixed plate, the workpiece 1 is placed on a lathe, the first fixed plate 2 is abutted against a tailstock of the lathe, the tailstock is abutted against a preset axle center hole, a third fixed plate 9 is fixedly installed on a chuck of a lathe spindle box, a rotating shaft 11 is abutted against the third fixed plate 9, machining is performed on the workpiece 1 by using bolts 3 of the first fixed plate 2 and the second fixed plate 8 until the axle center is finished, the other section of the workpiece is machined, and the sleeve 10 is removed from the lathe window after the machining of the second fixed plate 2 and the axle center is finished.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. The utility model provides an auxiliary device of processing axle center is confirmed to large-scale crank axle of dragline excavator, includes first fixed plate (2) of setting in work piece (1) front end and sets up afterbody fixing device (4) at work piece (1) rear end, and first fixed plate (2) are connected through bolt (3) with work piece (1) front end, its characterized in that: the first fixing plate (2) is abutted on a tailstock of the lathe, the tail fixing device (4) is connected with the rear end of the workpiece (1) through a bolt (3), and the tail fixing device (4) is fixedly installed on a chuck of a main shaft box of the lathe.
2. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline excavator according to claim 1, wherein the auxiliary device comprises: the two end faces of the workpiece (1) are provided with central holes (5), eccentric holes (6) are distributed around the central holes (5), the central holes (5) and the eccentric holes (6) are correspondingly arranged with the machining axes of the workpiece (1), and inner threads are arranged on the inner walls of the central holes (5) and the eccentric holes (6).
3. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline excavator according to claim 1, wherein the auxiliary device comprises: perforation (7) are distributed on the first fixed plate (2), each perforation (7) penetrates through the first fixed plate (2), each perforation (7) of the first fixed plate (2) corresponds to a central hole (5) and an eccentric hole (6) at the front end of a workpiece (1), bolts (3) are arranged in each perforation (7) except for an axle center hole for axle center processing and positioning of the first fixed plate (2), and the bolts (3) on the first fixed plate (2) are in threaded connection with the central hole (5) or the eccentric hole (6) at the front end of the workpiece (1).
4. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline excavator according to claim 1, wherein the auxiliary device comprises: the tail fixing device (4) is composed of a second fixing plate (8), a third fixing plate (9), a sleeve (10), a rotating shaft (11) and a limiting block (12), wherein the second fixing plate (8) is respectively provided with a perforation (7), each perforation (7) penetrates through the second fixing plate (8), each perforation (7) of the second fixing plate (8) is correspondingly arranged with a central hole (5) and an eccentric hole (6) at the rear end of the workpiece (1), bolts (3) are arranged in each perforation (7) except for the axle center hole for axle center processing and positioning of the second fixing plate (8), the bolts (3) are in threaded connection with the central hole (5) or the eccentric hole (6) at the rear end of the workpiece (1) on the second fixing plate (8), and one side, far away from the workpiece (1), of the second fixing plate (8) is provided with the third fixing plate (9).
5. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline according to claim 4, wherein the auxiliary device comprises: the third fixed plate (9) is arranged in parallel with the second fixed plate (8), the third fixed plate (9) is arranged on a chuck of a lathe spindle box, and the sleeve (10), the rotating shaft (11) and the limiting block (12) are arranged between the second fixed plate (8) and the third fixed plate (9).
6. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline according to claim 4, wherein the auxiliary device comprises: the sleeve (10) is close to one end of the second fixed plate (8) and is blocked, a bolt (3) is arranged at the blocking end of the sleeve (10), the bolt of the sleeve (10) penetrates through the perforation of the second fixed plate (8), the bolt of the sleeve (10) is in threaded connection with the corresponding central hole (5) or the eccentric hole (6), an inner thread is arranged on the inner wall of the sleeve (10), and a rotating shaft (11) is arranged in the sleeve (10).
7. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline according to claim 6, wherein: one end of the rotating shaft (11) is arranged in the sleeve (10), an external thread is arranged on the side face of the rotating shaft (11), the rotating shaft (11) is connected with the sleeve (10) through threads, and a limiting block (12) is arranged at one end of the rotating shaft (11) outside the sleeve (10).
8. The auxiliary device for determining the machining axle center of a large-scale crank shaft of a dragline according to claim 7, wherein: one end of the limiting block (12) is connected with the bottom surface of the rotating shaft (11), and the other end of the limiting block (12) is abutted against the side surface of the third fixed plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624179.2U CN220680511U (en) | 2023-03-27 | 2023-03-27 | Auxiliary device for determining machining axle center of large-scale crank shaft of dragline excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624179.2U CN220680511U (en) | 2023-03-27 | 2023-03-27 | Auxiliary device for determining machining axle center of large-scale crank shaft of dragline excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220680511U true CN220680511U (en) | 2024-03-29 |
Family
ID=90369408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320624179.2U Active CN220680511U (en) | 2023-03-27 | 2023-03-27 | Auxiliary device for determining machining axle center of large-scale crank shaft of dragline excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220680511U (en) |
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2023
- 2023-03-27 CN CN202320624179.2U patent/CN220680511U/en active Active
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