CN210173316U - Outer core grinding rod for large-aperture hollow gear shaft - Google Patents
Outer core grinding rod for large-aperture hollow gear shaft Download PDFInfo
- Publication number
- CN210173316U CN210173316U CN201921022675.0U CN201921022675U CN210173316U CN 210173316 U CN210173316 U CN 210173316U CN 201921022675 U CN201921022675 U CN 201921022675U CN 210173316 U CN210173316 U CN 210173316U
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- gear shaft
- hollow gear
- conical
- core rod
- stop block
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Abstract
The utility model relates to a gear shaft processing field discloses a large aperture hollow gear shaft grinds plug outward, including plug body and cooperation subassembly, first toper dog is cup jointed to plug body one end fixed, the other end is equipped with the external screw thread section, and the cooperation subassembly includes second toper dog, locking gland, floating seal cover and lock nut. The problem of solve is that processing large aperture hollow gear shaft work piece excircle among the prior art needs twice manufacturing procedure, probably because clamping error and correction error have influenced holistic machining precision between twice process. The utility model discloses in to the hole conical surface chamfer of the hollow gear shaft of plug body conical surface and large aperture grinds each excircle for the benchmark, need not regard as a transition benchmark with the excircle that is processed, directly avoided adopting the machining error that the transition benchmark caused, and by traditional twice process optimization for one process processing, consequently both owing to reduced the error, improved the machining precision, also improved machining efficiency.
Description
Technical Field
The utility model relates to a gear shaft processing field, concretely relates to outer plug that grinds of large aperture hollow gear shaft.
Background
Hollow gear shaft workpieces with large bore diameters (usually bore diameters of > 100mm) are relatively common, and the machining sequence of the outer circle of the workpiece of the type is generally as follows:
1. firstly, processing an inner hole and an end face on one side, and carrying out subsequent reference to finish turning an outer circle on the same side;
2. and after turning around, finely turning the excircle on the other side by taking the machined excircle as a reference.
From the process route, the process reference for processing a plurality of outer circles of the large-aperture (phi is more than 100) hollow gear shaft is uniform, but a clamping error and a correction error still exist between two procedures, and the design requirement of a drawing is difficult to meet by adopting a common process route for a workpiece with high processing precision requirement.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of background art, the utility model provides an outer grinding core stick of large aperture hollow gear shaft, the problem of solution be among the prior art processing large aperture hollow gear shaft work piece excircle need twice manufacturing procedure, probably because clamping error and correction error have influenced holistic machining precision between the twice process.
For solving the technical problem, the utility model provides a following technical scheme:
an external grinding core rod of a large-aperture hollow gear shaft comprises a core rod body and a matching component, wherein one end of the core rod body is fixedly sleeved with a first conical stop block, the other end of the core rod body is provided with an external thread section, the matching component comprises a second conical stop block, a stop gland, a floating seal sleeve and a locking nut, the core rod body passes through the shaft hole of the hollow gear shaft, the conical surface of the first conical stop block tightly abuts against one end of the shaft hole of the hollow gear shaft, the second conical stop block is sleeved on the core rod body, the conical surface of the second conical stop block tightly abuts against the other end of the shaft hole of the hollow gear shaft, the stop gland, the floating seal sleeve and the locking nut are mutually abutted and are sequentially sleeved on the core rod body outside the second conical stop block, the stop gland is tightly abutted to the second conical stop block, and the locking nut is fixedly connected with the core rod body through the external thread section in threaded connection.
During the use, pass the shaft hole of large aperture hollow gear axle (being the work piece) by the plug body, after lock nut locking, first toper dog and second toper dog tightly support the fixed work piece in shaft hole both ends, the plug body both ends are fixed on the grinding machine to can once only process the work piece excircle.
Preferably, the included angle a of the conical surfaces of the first conical stop and the second conical stop is 60 °.
Compared with the prior art, the utility model following beneficial effect has at least: the outer circles of all positions are ground by taking the conical surface of the core rod body and the inner hole conical surface chamfer of the large-aperture hollow gear shaft as references, the machined outer circle can be corrected by subsequent processes to be machined as references, the machined outer circle does not need to be taken as a transition reference, machining errors caused by the adoption of the transition reference are directly avoided, and the traditional two-process machining optimization is one-process machining, so that the machining precision is improved due to the fact that errors are reduced, and the machining efficiency is also improved.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the present invention in operation.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in figures 1 and 2, the external grinding core rod for the large-aperture hollow gear shaft comprises a core rod body 1 and a matching assembly, wherein one end of the core rod body 1 is fixedly sleeved with a first conical stop block 2, the other end of the core rod body is provided with an external thread section 3, the matching assembly comprises a second conical stop block 4 and a stop gland 5, floating seal cover 6 and lock nut 7, the plug body 1 passes the shaft hole 8 of hollow gear shaft 10 and the conical surface of first toper dog 2 tightly supports the 8 one end in shaft hole of hollow gear shaft 10, second toper dog 4 cover is established on plug body 1 and the conical surface of second toper dog 4 tightly supports the 8 other ends in shaft hole of hollow gear shaft 10, locking gland 5, floating seal cover 6 and lock nut 7 are each other supported to paste and are established in proper order on the plug body 1 in the second toper dog 4 outside, locking gland 5 tightly supports second toper dog 4, lock nut 7 passes through threaded connection institute external screw thread section 3 fixed connection plug body 1.
When the device is used, the core rod body 1 penetrates through the shaft hole 8 of the large-aperture hollow gear shaft 10 (namely a workpiece), after the locking nut 7 is locked, the first conical stop block 2 and the second conical stop block 4 tightly abut against two ends of the shaft hole 8 to fix the workpiece, and two ends of the core rod body 1 are fixed on a grinding machine, so that the excircle of the workpiece can be machined at one time.
The included angle a of the conical surfaces of the first conical stop 2 and the second conical stop 4 is 60 °.
The scheme takes the inner hole conical surface chamfer of the conical surface of the core rod body and the large-aperture hollow gear shaft as a reference to grind the outer circles of all positions, subsequent processes can correct the processed outer circle to process as a reference, the processed outer circle does not need to be taken as a transition reference, the processing error caused by the transition reference is directly avoided, and the traditional two-process processing optimization is one-process processing, so that the processing efficiency is improved due to the reduction of errors.
In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. The utility model provides an outer grinding core stick of large aperture hollow gear shaft which characterized in that: comprises a core rod body and a matching component, wherein one end of the core rod body is fixedly sleeved with a first conical stop block, the other end of the core rod body is provided with an external thread section, the matching component comprises a second conical stop block, a stop gland, a floating seal sleeve and a locking nut, the core rod body passes through the shaft hole of the hollow gear shaft, the conical surface of the first conical stop block tightly abuts against one end of the shaft hole of the hollow gear shaft, the second conical stop block is sleeved on the core rod body, the conical surface of the second conical stop block tightly abuts against the other end of the shaft hole of the hollow gear shaft, the stop gland, the floating seal sleeve and the locking nut are mutually abutted and are sequentially sleeved on the core rod body outside the second conical stop block, the stop gland is tightly abutted to the second conical stop block, and the locking nut is fixedly connected with the core rod body through the external thread section in threaded connection.
2. The external grinding core rod for the large-aperture hollow gear shaft according to claim 1, characterized in that: the included angles (A) of the conical surfaces of the first conical stop block and the second conical stop block are both 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022675.0U CN210173316U (en) | 2019-07-02 | 2019-07-02 | Outer core grinding rod for large-aperture hollow gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022675.0U CN210173316U (en) | 2019-07-02 | 2019-07-02 | Outer core grinding rod for large-aperture hollow gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210173316U true CN210173316U (en) | 2020-03-24 |
Family
ID=69839906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921022675.0U Active CN210173316U (en) | 2019-07-02 | 2019-07-02 | Outer core grinding rod for large-aperture hollow gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210173316U (en) |
-
2019
- 2019-07-02 CN CN201921022675.0U patent/CN210173316U/en active Active
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