CN216325629U - Self-centering universal tool for polar coordinate gear chamfering machine - Google Patents
Self-centering universal tool for polar coordinate gear chamfering machine Download PDFInfo
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- CN216325629U CN216325629U CN202122865797.XU CN202122865797U CN216325629U CN 216325629 U CN216325629 U CN 216325629U CN 202122865797 U CN202122865797 U CN 202122865797U CN 216325629 U CN216325629 U CN 216325629U
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Abstract
The utility model discloses a self-centering universal tool for a polar coordinate gear chamfering machine, which comprises: the bottom of the fixture body is detachably arranged on a machine tool workbench of the gear chamfering machine; the three-jaw chuck is detachably arranged at the top of the clamp body, and three clamping jaws of the three-jaw chuck are used for reversely supporting a positioning inner hole of the gear to be chamfered; the supporting structure is arranged on the machine tool workbench and positioned on one side of the clamp body; and the limiting contact is arranged on the supporting structure and horizontally extends towards the upper part of the three-jaw chuck and is used for positioning the tooth groove angle of the gear for clamping the three-jaw chuck. The self-centering universal tool can automatically center and circumferentially position and center a workpiece in the process of machining a gear workpiece, has universality, enables the workpiece to be clamped more conveniently, enables the same batch of parts to be clamped only by a measuring head in one step, and is convenient, fast and firm to clamp.
Description
Technical Field
The utility model relates to the technical field of tools, in particular to a self-centering universal tool for a polar coordinate gear chamfering machine.
Background
A polar coordinate gear chamfering machine, such as an SKDL-800 polar coordinate gear chamfering machine, realizes simultaneous chamfering of a single face or double faces of a gear by using a hard alloy milling cutter rotating at a high speed, and has the characteristics of internal/external tooth composite chamfering, adjustable chamfering size, consistent chamfering size, automation, high efficiency and the like. The gear chamfered by the machine tool can effectively reduce quenching cracks, reduce the edge contact effect of the gear, reduce the meshing noise of the gear, improve the meshing quality of the gear and prolong the service life of the gear. The machine tool can be widely applied to automatic chamfering of straight-tooth cylindrical inner/outer gear rings with the specifications below the medium level.
However, in the prior art, the original tool of the machine tool is of a vertical mandrel type, and does not have the functions of automatic centering and clamping, and also does not have the function of circumferential positioning and centering. Therefore, the centers of the gear and the gear ring are manually calibrated when the internal/external gear and the gear ring with different positioning inner diameters are clamped each time; and when chamfering of another gear ring with the same specification or the end face of the other side of the same gear ring is carried out again after each chamfering operation of one end face of one side of the outer gear ring or the gear ring is finished, centering of a measuring head of the chamfering machine is carried out again, and the center of the tooth socket is aligned. Therefore, the tools waste time and labor in the process of clamping adjustment and alignment centering, and are inconvenient, so that the processing efficiency is influenced, and the processing quality of the workpiece is also influenced to a certain extent.
Disclosure of Invention
The utility model aims to solve the problems and provides a self-centering universal tool for a polar coordinate gear chamfering machine, which can automatically center and circumferentially position and center a workpiece in the process of machining a gear workpiece, has universality, enables the workpiece to be clamped more conveniently, enables the same batch of parts to be clamped only by a measuring head in one time, and is convenient and firm to clamp.
In order to achieve the above object, the present invention provides a self-centering universal tool for a polar gear chamfering machine, including: the bottom of the fixture body is detachably arranged on a machine tool workbench of the gear chamfering machine; the three-jaw chuck is detachably arranged at the top of the clamp body, and three clamping jaws of the three-jaw chuck are used for reversely supporting a positioning inner hole of the gear to be chamfered; the supporting structure is arranged on the machine tool workbench and positioned on one side of the clamp body; and the limiting contact is arranged on the supporting structure and horizontally extends towards the upper part of the three-jaw chuck and is used for positioning the tooth groove angle of the gear for clamping the three-jaw chuck.
Preferably, the support structure comprises: the bracket is detachably arranged on the machine tool workbench and positioned on one side of the clamp body; a movable support which is arranged on the bracket and can slide relative to the bracket; wherein the limit contact is mounted on the movable support.
Preferably, the movable support comprises a base matched with the support in a sliding mode and a vertical support frame fixedly connected with one end of the base, and the limiting contact is installed on the vertical support frame.
Preferably, a limit screw extending along the horizontal direction is installed on the vertical support frame, and the limit contact is detachably connected with the limit screw.
Preferably, the limit contact has a ball contact.
Compared with the prior art, the self-centering universal tool for the polar coordinate gear chamfering machine has the following beneficial effects that:
the self-centering universal tool disclosed by the utility model has the advantages that the three-jaw chuck is adopted for self-centering, the centering and clamping problems of gear workpieces with different positioning sizes are effectively solved, the need of correcting the center after clamping the workpiece every time or the need of designing one tool for each workpiece is avoided, the universality is strong, and the workpiece clamping is more convenient and more reliable; meanwhile, the gear tooth socket angular positioning is adopted, so that the problem that the same batch of identical workpieces need to be adjusted to be correctly aligned to the tooth socket by a chamfering machine measuring head after being clamped every time is effectively solved, the machining auxiliary time of centering and aligning, measuring head aligning, clamping and fastening and the like is greatly saved, and the production efficiency is effectively improved.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a self-centering universal tool for a polar gear chamfering machine according to an embodiment of the utility model;
FIG. 2 is a left side view of a self-centering universal tool for a polar gear chamfering machine according to an embodiment of the utility model;
FIG. 3 is a top view of a self-centering universal tool for a polar gear chamfering machine according to an embodiment of the utility model.
Detailed Description
As shown in fig. 1 to fig. 3, which are different views of the self-centering universal tool for a polar gear chamfering machine according to the present invention, it can be seen that the self-centering universal tool for a polar gear chamfering machine according to the present invention includes: the bottom of the clamp body 9 is detachably arranged on a machine tool workbench of the gear chamfering machine; the three-jaw chuck 10 is detachably arranged at the top of the clamp body 9, and three clamping jaws of the three-jaw chuck are used for reversely supporting a positioning inner hole of the gear to be chamfered; the supporting structure is arranged on the machine tool workbench and is positioned on one side of the clamp body 9; and a limit contact 8 mounted on the support structure and horizontally extending above the three-jaw chuck 10 to angularly position the gear tooth slot.
Wherein, the support structure of the utility model includes: the bracket 2 is detachably arranged on the machine tool workbench and is positioned on one side of the clamp body 9; and a movable support 7 mounted on the bracket 2 and capable of sliding relative to the bracket 2, wherein the limit contact 8 is mounted on the movable support 7.
Preferably, the movable support 7 comprises a base matched with the support 2 in a sliding manner and a vertical support frame fixedly connected with one end of the base, and the limit contact 8 is installed on the vertical support frame. And a limit screw 5 extending along the horizontal direction is arranged on the vertical support frame, and the limit contact 8 is detachably connected with the limit screw 5. The limiting contact is provided with a spherical contact, and the spherical contact is used for propping against a tooth groove of the gear to be chamfered so as to perform angular positioning on the tooth groove of the gear.
Next, the structure of the self-centering universal tool according to an embodiment of the present invention will be described in detail.
As shown in fig. 1 to 3, the self-centering universal tool for a polar coordinate gear chamfering machine in the embodiment mainly includes a fixture body 9, a manual self-centering three-jaw chuck 10, a bracket 2, a movable support 7, a limit screw 5, a ball head limit contact 8 with a spherical end, and the like.
The fixture body 9 comprises a cylindrical main body and horizontal connecting seats respectively located at the top and the bottom of the cylindrical main body, the horizontal connecting seat at the bottom is roughly positioned with a machine tool workbench through a positioning pin 1, and the horizontal connecting seat at the top is provided with positioning steps (namely the upper surface of the horizontal connecting seat is in a step shape with a high middle part and low two sides). The center of the lower part of the self-centering three-jaw chuck 10 is provided with a positioning hole which is recessed inwards (upwards as shown in fig. 1) along the axial direction, so that two sides of the lower part of the three-jaw chuck 10 protrude outwards, the two sides protruding outwards are respectively provided with a positioning hole, and correspondingly, the steps on two sides of the clamp body 9 are also provided with positioning holes corresponding to the positions. During assembly, the positioning steps of the clamp body 9 are matched with the positioning holes at the lower part of the three-jaw chuck 10, and the clamp body 9 and the three-jaw chuck 10 are detachably connected together in a mode that screws penetrate through the corresponding positioning holes. During assembly, the chuck body 9 may be first calibrated by a dial gauge before the three-jaw chuck 10 is installed, or the measuring rod may be clamped and the center of the three-jaw chuck may be calibrated by a dial gauge after the three-jaw chuck is installed, and then the three-jaw chuck and the chuck body may be further fastened. Then, a gear workpiece 11 to be chamfered is clamped on the three-jaw chuck, a special chuck wrench is inserted into a jaw adjusting nut of the three-jaw chuck, the wrench is rotated anticlockwise (or clockwise), and the three jaws (the jaws are positive jaws) are supported against a positioning inner hole of the gear workpiece, so that the workpiece is automatically centered and clamped.
Then, the bracket 2 is placed on the outer side of the clamp body 9 on the workbench of the machine tool, and the bracket 2 is fastened with the T-shaped groove arranged on the workbench through bolts. Then, the movable support 7 provided with the limit screw 5 and the ball-end limit contact 8 is placed on the bracket 2. Wherein, the center below the movable support 7 is provided with an inward concave groove, the center above the bracket 2 is provided with an outward convex boss, the movable support 7 is positioned by the sliding fit of the groove below the movable support and the boss above the bracket 2, and the movable support 7 can freely slide back and forth relative to the bracket 2. During assembly, the front and rear positions of the movable support 7 on the bracket 2 are adjusted according to the actual distance requirement from the ball head limiting contact 8 to the tooth groove wall of the gear workpiece clamped by the three-jaw chuck, and then the movable support 7 is fastened on the bracket 2 by using the screw 3 and the washer 4. And rotating the limit screw 5 to push the ball head contact of the ball head limit contact 8 to prop against the tooth groove of the gear workpiece.
When chamfering of a polar coordinate gear is actually carried out, only one cutter (centering by using a chamfering machine measuring head) is needed to be aligned on a gear workpiece subjected to first chamfering, then tooth space angle correct positioning of the gear workpiece is carried out by means of a ball head limiting contact of the tool in the embodiment, effective positioning and centering of the same batch of identical workpieces on the circumference can be achieved, tool setting operation is not needed to be carried out every time of machining, tool setting time is saved, and machining efficiency is improved.
The ball-shaped contact of the ball-head limiting contact 8 can be designed into five or more ball-head limiting contacts with different specifications and diameters from S phi 9 to S phi 20 according to the requirements of different gear workpiece modules, and can be replaced at any time according to the requirements of chamfered workpieces. The part of the ball-end limiting contact 8 departing from the ball-shaped contact is a cylindrical part, and the cylindrical part can be connected with the limiting screw 5 by virtue of threads (such as M8), so that the assembly, disassembly and replacement are convenient.
In conclusion, the self-centering universal tool for the polar coordinate gear chamfering machine disclosed by the utility model has the advantages that the three-jaw chuck is adopted for self-centering, the centering and clamping problems of gear workpieces with different positioning sizes are effectively solved, the need of center correction after each workpiece is clamped or a set of tool needs to be designed for each workpiece is avoided, the universality is high, and the workpiece clamping is more convenient and more reliable; meanwhile, the gear tooth socket angular positioning is adopted, so that the problem that the same batch of identical workpieces need to be adjusted to be correctly aligned to the tooth socket by a chamfering machine measuring head after being clamped every time is effectively solved, the machining auxiliary time of centering and aligning, measuring head aligning, clamping and fastening and the like is greatly saved, and the production efficiency is effectively improved.
Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can modify the principle of the present invention, and thus, various modifications made in accordance with the principle of the present invention should be understood to fall within the scope of the present invention.
Claims (5)
1. The utility model provides a from general frock of centering for polar coordinate gear chamfering machine which characterized in that includes:
the bottom of the fixture body is detachably arranged on a machine tool workbench of the gear chamfering machine;
the three-jaw chuck is detachably arranged at the top of the clamp body, and three clamping jaws of the three-jaw chuck are used for reversely supporting a positioning inner hole of the gear to be chamfered;
the supporting structure is arranged on the machine tool workbench and positioned on one side of the clamp body;
and the limiting contact is arranged on the supporting structure and horizontally extends towards the upper part of the three-jaw chuck and is used for positioning the tooth groove angle of the gear for clamping the three-jaw chuck.
2. The self-centering universal tool according to claim 1, wherein the support structure comprises:
the bracket is detachably arranged on the machine tool workbench and positioned on one side of the clamp body;
a movable support which is arranged on the bracket and can slide relative to the bracket;
wherein the limit contact is mounted on the movable support.
3. The self-centering universal tool according to claim 2, wherein the movable support comprises a base in sliding fit with the support and a vertical support fixedly connected with one end of the base, and the limit contact is mounted on the vertical support.
4. The self-centering universal tool according to claim 3, wherein a limit screw extending in the horizontal direction is mounted on the vertical support frame, and the limit contact is detachably connected with the limit screw.
5. The self-centering universal tool according to claim 4, wherein the limit contact has a ball contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122865797.XU CN216325629U (en) | 2021-11-22 | 2021-11-22 | Self-centering universal tool for polar coordinate gear chamfering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122865797.XU CN216325629U (en) | 2021-11-22 | 2021-11-22 | Self-centering universal tool for polar coordinate gear chamfering machine |
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| Publication Number | Publication Date |
|---|---|
| CN216325629U true CN216325629U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122865797.XU Active CN216325629U (en) | 2021-11-22 | 2021-11-22 | Self-centering universal tool for polar coordinate gear chamfering machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175236A (en) * | 2023-04-28 | 2023-05-30 | 山西电机制造有限公司 | Drilling positioning tool and machining method for end cover and flange |
-
2021
- 2021-11-22 CN CN202122865797.XU patent/CN216325629U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175236A (en) * | 2023-04-28 | 2023-05-30 | 山西电机制造有限公司 | Drilling positioning tool and machining method for end cover and flange |
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