CN213701772U - Cylindrical shaft rectangular positioning finish turning tool - Google Patents
Cylindrical shaft rectangular positioning finish turning tool Download PDFInfo
- Publication number
- CN213701772U CN213701772U CN202020303344.0U CN202020303344U CN213701772U CN 213701772 U CN213701772 U CN 213701772U CN 202020303344 U CN202020303344 U CN 202020303344U CN 213701772 U CN213701772 U CN 213701772U
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- CN
- China
- Prior art keywords
- chuck
- sleeve
- main shaft
- finish turning
- cylindrical shaft
- 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.)
- Expired - Fee Related
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- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Gripping On Spindles (AREA)
Abstract
The invention discloses a rectangular positioning finish turning tool for a cylindrical shaft, which comprises a main shaft, wherein a chuck is fixed at one end of the main shaft, four clamping jaws are arranged on the chuck and are uniformly distributed along the circumferential direction of the chuck, the main shaft is connected with a sleeve in a sliding manner, the sleeve is driven by a driving mechanism to slide on the main shaft, the front end of the sleeve covers the outer side of the chuck, the clamping jaws are connected on the sleeve in a sliding manner, one ends of the clamping jaws extend out of the outer side of the circumferential ring of the chuck, and the heights of the clamping jaws extending out of the circumferential ring of the chuck are gradually increased from the inner side of the chuck to the end part of the chuck. In this way, the four jaws move synchronously when the sleeve advances, so that the part can be ensured to be in the central position of the chuck when being clamped.
Description
Technical Field
The invention relates to a clamp, in particular to a finish turning tool for machining a shaft with a rectangular cross section.
Background
A shaft component 1a shown in fig. 1 has a block 100 with a rectangular cross section at one end and a cylinder 101 at the other end, wherein the cylinder needs to be precisely machined, and at this time, a jig needs to be clamped on the outer surface of the block 100 to position the axis of the cylinder 101 with the block 100.
For this part, a four-jaw chuck as described in fig. 2 was used, and the four jaws of this four-jaw chuck were able to abut against 4 outer surfaces of the block 100, thereby machining the part 1 a. However, since the four jaws of the four-jaw chuck are independent and cannot be self-centered like a three-jaw chuck, the worker needs to repeatedly adjust the four jaws to accurately position the part 1a, and therefore, improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a cylindrical shaft rectangular positioning finish turning tool which can be used for self-centering the rectangular section of a shaft part and greatly improving the production efficiency.
The invention is realized by the following technical scheme: cylindrical axis rectangle location finish turning frock, including the main shaft, the one end of main shaft is fixed with the chuck, be provided with four jack catchs, four on the chuck the jack catch along chuck circumference evenly distributed, main shaft sliding connection has a sleeve, the sleeve is in by the actuating mechanism drive slide on the main shaft, telescopic front end cover is in the chuck outside, jack catch sliding connection is in on the sleeve, the one end of jack catch stretches out the border outside of chuck, just the jack catch stretches out the highly follow of chuck border the inboard of chuck increases gradually to the tip. When the clamping device is used, a block of a part is firstly placed between the four clamping jaws at the middle position of the chuck, then the driving mechanism is started to push the sleeve to move towards the end part of the spindle, and in the moving process of the sleeve, the clamping jaws are pressed into the center position of the chuck to clamp the part. In this way, the four jaws move synchronously when the sleeve advances, so that the part can be ensured to be in the central position of the chuck when being clamped.
In the above technical solution, preferably, the driving mechanism is a hydraulic cylinder, and the hydraulic cylinder drives the sleeve to move through a piston rod.
In the above technical solution, preferably, the clamping device further includes an elastic member for driving the clamping jaw to be in close contact with the inner wall of the sleeve.
In the above technical scheme, preferably, the elastic member is a spring, a groove is formed in the chuck, the jaw is arranged in the groove, and two ends of the spring are respectively in contact with one end of the jaw and the bottom of the groove.
Compared with the prior art, the invention has the beneficial effects that: when the clamping device is used, a block of a part is firstly placed between the four clamping jaws at the middle position of the chuck, then the driving mechanism is started to push the sleeve to move towards the end part of the spindle, and in the moving process of the sleeve, the clamping jaws are pressed into the center position of the chuck to clamp the part. In this way, the four jaws move synchronously when the sleeve advances, so that the part can be ensured to be in the central position of the chuck when being clamped.
Drawings
Fig. 1 is a diagram of the processed product of the present invention.
FIG. 2 is a schematic view of a conventional four-jaw chuck
Fig. 3 is a schematic diagram of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
referring to fig. 1-3, the cylindrical shaft rectangular positioning finish turning tool comprises a main shaft 1, wherein a chuck 2 is fixed at one end of the main shaft 1, four clamping jaws 3 are arranged on the chuck 2, the four clamping jaws 3 are uniformly distributed along the circumferential direction of the chuck 2, the main shaft 1 is connected with a sleeve 4 in a sliding manner, the sleeve 4 is driven by a hydraulic cylinder 5 to slide on the main shaft 1, and the hydraulic cylinder 5 drives the sleeve 4 to move through a piston rod 51. The front end cover of sleeve 4 is in the chuck 2 outside, jack catch 3 sliding connection be in on the sleeve 4, the one end of jack catch 3 stretches out the periphery outside of chuck 2, just jack catch 3 stretches out the height follow of chuck 2 periphery the inboard of chuck 2 is to the tip increase gradually.
And a spring 22 for driving the claws 3 to be in close contact with the inner wall of the sleeve 4. Chuck 2 is last to be provided with recess 21, jack catch 3 sets up in the recess 21, the both ends of spring 22 respectively with the one end of jack catch 3 and the bottom of recess 21 contacts.
When the clamping device is used, a block of a part is firstly placed between the four clamping jaws at the middle position of the chuck, then the hydraulic cylinder is started to push the sleeve to move towards the end part of the spindle, and in the moving process of the sleeve, the clamping jaws are pressed into the center position of the chuck to clamp the part. In this way, the four jaws move synchronously when the sleeve advances, so that the part can be ensured to be in the central position of the chuck when being clamped. After the machining is finished, the hydraulic cylinder retracts, the four clamping jaws retract under the action of the spring, and then the part can be taken down.
Claims (4)
1. Cylindrical shaft rectangle location finish turning frock, including the main shaft, the one end of main shaft is fixed with the chuck, be provided with four jack catchs on the chuck, four the jack catch along chuck circumference evenly distributed, its characterized in that: the main shaft sliding connection has a sleeve, the sleeve is in by the actuating mechanism drive slide on the main shaft, telescopic front end cover is in the chuck outside, jack catch sliding connection is in on the sleeve, the one end of jack catch stretches out the border outside of chuck, just the jack catch stretches out the height of chuck border is followed the inboard of chuck is to the tip increase gradually.
2. The cylindrical shaft rectangular positioning finish turning tool according to claim 1, characterized in that: the driving mechanism is a hydraulic cylinder, and the hydraulic cylinder drives the sleeve to move through a piston rod.
3. The cylindrical shaft rectangular positioning finish turning tool according to claim 1, characterized in that: the clamping jaw is driven to be in close contact with the inner wall of the sleeve to form an elastic part.
4. The cylindrical shaft rectangular positioning finish turning tool according to claim 3, characterized in that: the elastic piece is a spring, a groove is formed in the chuck, the clamping jaws are arranged in the groove, and two ends of the spring are respectively in contact with one end of each clamping jaw and the bottom of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303344.0U CN213701772U (en) | 2020-03-12 | 2020-03-12 | Cylindrical shaft rectangular positioning finish turning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303344.0U CN213701772U (en) | 2020-03-12 | 2020-03-12 | Cylindrical shaft rectangular positioning finish turning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213701772U true CN213701772U (en) | 2021-07-16 |
Family
ID=76765253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020303344.0U Expired - Fee Related CN213701772U (en) | 2020-03-12 | 2020-03-12 | Cylindrical shaft rectangular positioning finish turning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213701772U (en) |
-
2020
- 2020-03-12 CN CN202020303344.0U patent/CN213701772U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |