CN212761184U - Clamping device for machining hollow shaft - Google Patents
Clamping device for machining hollow shaft Download PDFInfo
- Publication number
- CN212761184U CN212761184U CN202021223391.0U CN202021223391U CN212761184U CN 212761184 U CN212761184 U CN 212761184U CN 202021223391 U CN202021223391 U CN 202021223391U CN 212761184 U CN212761184 U CN 212761184U
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- CN
- China
- Prior art keywords
- hollow shaft
- mandrel
- pull rod
- clamping device
- dabber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a clamping device for hollow shaft processing, including the dabber, the cover that rises, pull rod, the cover rises at the one end coaxial arrangement of dabber, and it has a through-hole to wear the dress to be used for adjusting the pull rod of the cover that rises at the coaxial system in the center of dabber, wears the dress in the through-hole, at the other end coaxial coupling main shaft connection pad of dabber, coaxial suit pull rod connection pad in main shaft connection pad. The utility model provides a feasibility problem of the unable centre gripping of lathe chuck. The standard three-jaw chuck clamp is changed into a structure that an expansion sleeve pull rod is used, and the inner hole of a hollow shaft is radially positioned and the inner hole chamfer angle is axially positioned, so that the lathe machining of the inner hole, the excircle and the end face can be simultaneously completed by one-time clamping. The loading and unloading are convenient and efficient. The radial and axial positioning is very accurate.
Description
Technical Field
The utility model belongs to the turning attachment field relates to the centre gripping technique of hollow shaft, especially a clamping device for hollow shaft processing.
Background
When a hollow shaft on a power takeoff used in an automobile four-wheel drive system is machined, due to the limitation of a special appearance profile, after a forging (rotary swaging) process, a regular cylindrical surface for clamping a lathe chuck does not exist, an excircle has large taper and a reliable and accurate axial positioning reference does not exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a clamping device for hollow shaft processing.
The utility model provides a technical scheme that technical problem adopted is:
a clamping device for machining a hollow shaft comprises a mandrel, an expansion sleeve and a pull rod, wherein the expansion sleeve is coaxially arranged at one end of the mandrel, a through hole is coaxially formed in the center of the mandrel, the pull rod for adjusting the expansion sleeve penetrates through the through hole, the other end of the mandrel is coaxially connected with a main shaft connecting disc, and the pull rod connecting disc is coaxially sleeved in the main shaft connecting disc.
And a flange is manufactured at one end of the mandrel and is connected with the main shaft connecting disc through the flange.
And the diameters of two ends of the mandrel are different, the diameter of one end of the mandrel is larger than that of the other end of the mandrel, the expansion sleeve is sleeved at the end with the small diameter, and the flange connection disc is integrally manufactured at the end with the large diameter.
Moreover, the shape of the mandrel is matched with that of the hollow shaft.
The utility model has the advantages that:
the utility model provides a feasibility problem of the unable centre gripping of lathe chuck. The standard three-jaw chuck clamp is changed into a structure that an expansion sleeve pull rod is used, and the inner hole of a hollow shaft is radially positioned and the inner hole chamfer angle is axially positioned, so that the lathe machining of the inner hole, the excircle and the end face can be simultaneously completed by one-time clamping. The loading and unloading are convenient and efficient. The radial and axial positioning is very accurate.
Drawings
FIG. 1 is an axial cross-sectional view of the present chuck;
FIG. 2 is a view showing a state of use of the present clip (pull rod and expansion sleeve are not shown)
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.
A clamping device for machining a hollow shaft comprises a mandrel 3, an expansion sleeve 1 and a pull rod 2, wherein the expansion sleeve is coaxially arranged at one end of the mandrel, a through hole is coaxially formed in the center of the mandrel, and the pull rod for adjusting the expansion sleeve penetrates through the through hole. The other end of the mandrel is coaxially connected with a spindle connecting disc 4. A pull rod connecting disc 5 is coaxially sleeved in the main shaft connecting disc.
The spindle is thin at one end and thick at the other end, and a flange plate is manufactured at the thick end and is connected with the spindle connecting disc through the flange plate. An expansion sleeve is arranged at one thin end.
The utility model discloses a use method does:
when the device is used, the main shaft connecting disc is connected with the vehicle-mounted main shaft, the hollow shaft workpiece 6 is sleeved on the mandrel, and the hollow shaft is clamped through the tension of the expansion sleeve.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the spirit of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (4)
1. The utility model provides a clamping device for hollow shaft processing which characterized in that: the expansion sleeve is coaxially arranged at one end of the mandrel, a through hole is coaxially formed in the center of the mandrel, the pull rod for adjusting the expansion sleeve penetrates through the through hole, the other end of the mandrel is coaxially connected with a main shaft connecting disc, and the pull rod connecting disc is coaxially sleeved in the main shaft connecting disc.
2. A clamping device for hollow shaft machining according to claim 1, characterized in that: and a flange plate is manufactured at one end of the mandrel and is connected with the main shaft connecting plate through the flange plate.
3. A clamping device for hollow shaft machining according to claim 1, characterized in that: the diameters of two ends of the mandrel are different, the diameter of one end of the mandrel is larger than that of the other end of the mandrel, the expansion sleeve is sleeved at the end with the small diameter, and the flange connection disc is integrally manufactured at the end with the large diameter.
4. A clamping device for hollow shaft machining according to claim 1, characterized in that: the shape of the mandrel is matched with the hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223391.0U CN212761184U (en) | 2020-06-29 | 2020-06-29 | Clamping device for machining hollow shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223391.0U CN212761184U (en) | 2020-06-29 | 2020-06-29 | Clamping device for machining hollow shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212761184U true CN212761184U (en) | 2021-03-23 |
Family
ID=75086985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021223391.0U Active CN212761184U (en) | 2020-06-29 | 2020-06-29 | Clamping device for machining hollow shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212761184U (en) |
-
2020
- 2020-06-29 CN CN202021223391.0U patent/CN212761184U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |