CN216503571U - Gear shaft automatic locking frock - Google Patents
Gear shaft automatic locking frock Download PDFInfo
- Publication number
- CN216503571U CN216503571U CN202122923769.9U CN202122923769U CN216503571U CN 216503571 U CN216503571 U CN 216503571U CN 202122923769 U CN202122923769 U CN 202122923769U CN 216503571 U CN216503571 U CN 216503571U
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- gear shaft
- thimble
- main shaft
- positioning disc
- mounting seat
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Abstract
The utility model provides a gear shaft automatic locking tool, which comprises a main shaft thimble and an auxiliary thimble, wherein the main shaft thimble and the auxiliary thimble are used for clamping a gear shaft from two ends of the gear shaft, the main shaft thimble and the auxiliary thimble are symmetrically arranged on a machine tool, the main shaft thimble is connected to a main shaft of the machine tool along the axial direction of the main shaft of the machine tool, an installation seat is sleeved on the outer side of the main shaft thimble, a positioning disc is arranged on the other side of the installation seat opposite to the main shaft of the machine tool, a spring is arranged between the installation seat and the positioning disc, the spring is sleeved on the outer side of the main shaft thimble, and a limiting screw is connected to the installation seat through an internal thread; the utility model has the following beneficial effects: the two ends of the gear shaft are placed between the main shaft ejector pins and the auxiliary ejector pins, the conical end portions of the main shaft ejector pins and the auxiliary ejector pins stretch into the grooves in the two ends of the gear shaft, meanwhile, the end portions of the gear shaft extrude the positioning disc, the positioning disc extrudes the spring, then the spring is elastically contracted, and therefore the gear shaft can be preliminarily installed on a locking tool.
Description
Technical Field
The utility model relates to the technical field of coated shaft workpiece clamping tools, in particular to an automatic locking tool for a gear shaft.
Background
The shaft workpiece is a revolving body workpiece comprising a gear shaft, a main shaft and the like, when the shaft workpiece is subjected to finish machining, the shaft workpiece is usually machined by a lathe, generally, the shaft workpiece is clamped on the main shaft of the lathe by a worker, the machine tool main shaft drives the shaft workpiece to rotate, and a machining tool or a machining tool feeds the shaft workpiece, so that the shaft part is machined, the machining which can be carried out comprises the precise cutting of the size of the shaft workpiece, the polishing and the polishing of the side wall and the grinding of the side wall and the like, when the shaft workpiece of which the surface is painted or coated is partially machined, if a three-jaw chuck is adopted for conventional clamping, a paint layer or a coating on the surface of the shaft workpiece is easily damaged, and the quality of the shaft part is influenced.
For the gear shaft, the end of the gear shaft is usually provided with a positioning bulge, and the edge of the raised polygonal outline generally needs to be aligned with a certain gear tooth of the gear, a centrifugal clamp is generally adopted to clamp the gear shaft in the prior art, when the centrifugal clamp is used for clamping, when a worker manually loads materials or automatically loads materials through a structure, if the polygonal end of the gear shaft is not aligned with the clamping outline of the centrifugal clamp, the gear shaft cannot be clamped during processing, even the possibility that the gear shaft falls off may occur, the processing quality of the gear shaft is seriously affected, and the centrifugal clamp needs a large clamping force to lock the gear shaft, so that a paint layer or a plating layer on the surface of the gear shaft is easily damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, an object of the present invention is to provide an automatic locking tool for a gear shaft, which is used to solve the problem of poor clamping effect in the prior art.
In order to achieve the above and other related objects, the present invention provides an automatic locking tool for a gear shaft, including a main shaft thimble and a sub-thimble for clamping the gear shaft from both ends of the gear shaft, the main shaft thimble and the auxiliary thimble are symmetrically arranged on the machine tool, the main shaft thimble is connected to the main shaft of the machine tool along the axial direction of the main shaft of the machine tool, the outer side of the main shaft thimble is sleeved with a mounting seat, the other side of the mounting seat opposite to the main shaft of the machine tool is provided with a positioning disc, a spring is arranged between the mounting seat and the positioning plate, the spring is sleeved outside the main shaft thimble, a limit screw is connected with the mounting seat through an internal thread, the limiting screw can relatively slide to pass through the positioning plate and limit the positioning plate through the limiting screw, the middle position of the positioning disc is provided with a positioning hole corresponding to the main shaft thimble, and the positioning hole is matched with the shape of a positioning bulge at the end part of the processed gear shaft.
In an embodiment of the present invention, the main shaft thimble and the auxiliary thimble are both cylindrical pieces with tapered end portions, and the tapered end portions of the main shaft thimble and the auxiliary thimble are adapted to the groove formed in the end portion of the processed gear shaft.
In an embodiment of the utility model, a mounting ring is arranged on one side of the mounting seat facing the machine tool spindle, a plurality of locking screws uniformly distributed along the circumferential direction penetrate through the circumferential side surface of the mounting ring, and the mounting ring is connected with the spindle thimble through the locking screws.
In an embodiment of the present invention, a plurality of guide holes are formed in the mounting seat and the positioning plate, guide posts are disposed in the guide holes, bottom ends of the guide posts are slidably connected in the guide holes in the mounting seat, and top ends of the guide posts are connected in the guide holes in the positioning plate.
In an embodiment of the present invention, a guide arc surface for facilitating the clamping of the processed gear shaft into the positioning hole is disposed at the opening of the positioning hole.
In an embodiment of the utility model, at least three of the limit screws are uniformly distributed at intervals along the circumferential direction of the mounting seat.
As mentioned above, the automatic locking tool for the gear shaft has the following beneficial effects:
the utility model puts the two ends of the gear shaft between the main shaft thimble and the auxiliary thimble, so that the conical end parts of the main shaft thimble and the auxiliary thimble extend into the grooves in the two ends of the gear shaft, meanwhile, the end part of the gear shaft extrudes the positioning disc, the positioning disc extrudes the spring, and then the spring elastically contracts, so that the gear shaft can be initially installed on the locking tool, then the positioning disc is driven to rotate by the rotation of the main shaft of the machine tool, when the positioning disc rotates to the position hole to be opposite to the bulge on the side surface of the end part of the gear shaft, the positioning disc can be pushed under the elastic extension action of the spring, so that the position hole is clamped on the bulge on the side surface of the end part of the gear shaft, the end part of the gear shaft can be stably fixed on the locking tool, the clamping effect is good, the condition that the gear shaft falls off is avoided, the processing quality of the gear shaft is ensured, and the gear shaft is locked without great clamping force, so be difficult to cause the damage to gear shaft surface lacquer layer or cladding material to the staff need not to waste time and energy when the clamping gear shaft and adjusts the gear shaft well, thereby the staff of being convenient for operates and uses.
Drawings
Fig. 1 is a front perspective view schematically illustrating an automatic locking tool for a gear shaft according to an embodiment of the present invention;
fig. 2 is a schematic top perspective view of the automatic locking tool for the gear shaft disclosed in the embodiment of the utility model.
Description of the element reference numerals
1. A machine tool spindle; 2. a main shaft thimble; 3. a mounting seat; 4. a mounting ring; 5. a locking screw; 6. positioning a plate; 7. a guide post; 8. a guide hole; 9. a limit screw; 10. a spring; 11. positioning holes; 12. and (5) guiding the cambered surface.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1-2. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1 to 2, the present invention provides an automatic locking tool for a gear shaft, including a main shaft thimble 2 and an auxiliary thimble for clamping the gear shaft from two ends of the gear shaft, the main shaft thimble 2 and the auxiliary thimble are symmetrically arranged on a machine tool, the main shaft thimble 2 and the auxiliary thimble are both cylindrical pieces with tapered end portions, the tapered structures of the end portions of the main shaft thimble 2 and the auxiliary thimble are adapted to a groove formed at the end portion of the gear shaft to be processed, the main shaft thimble 2 is connected to the main shaft 1 of the machine tool along the axial direction of the main shaft 1 of the machine tool, an installation base 3 is sleeved outside the main shaft thimble 2, one side of the installation base 3 facing the main shaft 1 of the machine tool is provided with an installation ring 4, a plurality of locking screws 5 uniformly distributed along the circumferential direction are penetrated on the circumferential side surface of the installation ring 4, the mounting ring 4 is connected with the main shaft thimble 2 through a locking screw 5, and the other side of the mounting seat 3 relative to the machine tool main shaft 1 is provided with a positioning disc 6;
a spring 10 is arranged between the mounting seat 3 and the positioning plate 6, the spring 10 is sleeved on the outer side of the main shaft thimble 2, a limiting screw 9 is connected with the mounting seat 3 in a threaded manner, the limiting screw 9 can relatively slide and penetrate through the positioning plate 6 and limit the positioning plate 6 through the limiting screw 9, at least three limiting screws 9 are uniformly distributed at intervals along the circumferential direction of the mounting seat 3, a positioning hole 11 corresponding to the main shaft thimble 2 is formed in the middle position of the positioning plate 6, the positioning hole 11 is matched with the shape of a positioning bulge at the end part of a processed gear shaft, a plurality of guide holes 8 are formed in the mounting seat 3 and the positioning plate 6, a guide post 7 is arranged in each guide hole 8, the bottom end of each guide post 7 is slidably connected into the corresponding guide hole 8 in the mounting seat 3, and the top end of each guide post 7 is connected into the corresponding guide hole 8 in the positioning plate 6;
specifically, the main shaft thimble 2 is a columnar piece fixedly connected to a main shaft of a lathe, an auxiliary thimble can be rotary or non-rotary, a locking tool can be installed on the surface of the auxiliary thimble or not, for most machine tools, the operation of the auxiliary thimble on the machine tool is different, a worker wears the locking tool on the main shaft thimble 2, and then installs the locking tool on the main shaft thimble 2 through a locking screw 5;
furthermore, when the gear shaft needs to be machined, only two ends of the gear shaft need to be placed between the main shaft thimble 2 and the auxiliary thimble, so that the conical end parts of the main shaft thimble 2 and the auxiliary thimble extend into the grooves in the two ends of the gear shaft, meanwhile, the end part of the gear shaft extrudes the positioning disc 6, so that the positioning disc 6 extrudes the spring 10, and then the spring 10 elastically contracts, so that the gear shaft can be preliminarily installed on a locking tool, and because the contact areas of the conical end parts of the main shaft thimble 2 and the auxiliary thimble and the grooves in the two ends of the gear shaft are smaller, the gear shaft cannot be driven to rotate due to the rotation of the main shaft thimble 2;
furthermore, the positioning disc 6 is driven to rotate by the rotation of the machine tool spindle 1, when the positioning disc 6 rotates to the position where the positioning hole 11 is opposite to the bulge on the side face of the end part of the gear shaft, the positioning disc 6 is pushed under the action of elastic extension of the spring 10, so that the positioning hole 11 is clamped on the bulge on the side face of the end part of the gear shaft, the end part of the gear shaft is fixedly and stably fixed on a locking tool, and the gear shaft rotates along with the machine tool spindle 1 under the driving of the positioning disc 6, so that the machining of the gear shaft is realized, and the machining quality of the gear shaft is ensured.
In a further embodiment, referring to fig. 1 and 2, a guide arc surface 12 for facilitating the clamping of the processed gear shaft into the positioning hole 11 is disposed at the opening of the positioning hole 11, and specifically, the guide arc surface 12 is disposed for facilitating the clamping of the processed gear shaft into the positioning hole 11, thereby improving the smoothness of the structure movement.
In conclusion, the utility model puts the two ends of the gear shaft between the main shaft thimble 2 and the auxiliary thimble, so that the conical end parts of the main shaft thimble 2 and the auxiliary thimble extend into the grooves in the two ends of the gear shaft, meanwhile, the end part of the gear shaft extrudes the positioning disk 6, so that the positioning disk 6 extrudes the spring 10, and then the spring 10 elastically contracts, so that the gear shaft can be preliminarily installed on the locking tool, then the positioning disk 6 is driven to rotate by the rotation of the machine tool main shaft 1, when the positioning disk 6 rotates until the positioning hole 11 is opposite to the bulge on the side surface of the end part of the gear shaft, the positioning disk 6 can be pushed under the action of the elastic extension of the spring 10, so that the positioning hole 11 is clamped on the bulge on the side surface of the end part of the gear shaft, the end part of the gear shaft can be stably fixed on the locking tool, the clamping effect is good, and the situation that the gear shaft falls off is avoided, the processing quality of the gear shaft is guaranteed, the gear shaft is not locked by a large clamping force, so that a paint layer or a plating layer on the surface of the gear shaft is not easily damaged, and a worker does not need to align the gear shaft, which wastes time and labor, when clamping the gear shaft, so that the worker can conveniently operate and use the gear shaft. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a gear shaft automatic locking frock, is including main shaft thimble and the vice thimble that is used for following the both ends centre gripping gear shaft of gear shaft, main shaft thimble and vice thimble symmetry set up its characterized in that on the lathe: the spindle ejector pin is connected to the machine tool spindle along the axial direction of the machine tool spindle, a mounting seat is sleeved on the outer side of the spindle ejector pin, a positioning disc is arranged on the other side, opposite to the machine tool spindle, of the mounting seat, a spring is arranged between the mounting seat and the positioning disc, the spring is sleeved on the outer side of the spindle ejector pin, a limiting screw is connected to the inner thread of the mounting seat, the limiting screw can penetrate through the positioning disc in a relatively sliding mode and limits the positioning disc through the limiting screw, a positioning hole corresponding to the spindle ejector pin is formed in the middle of the positioning disc, and the positioning hole is matched with the shape of a positioning protrusion at the end portion of a gear shaft to be machined.
2. The automatic locking tool for the gear shaft according to claim 1, is characterized in that: the main shaft thimble and the auxiliary thimble are both cylindrical parts with the end parts processed into conical shapes, and the conical structures at the end parts of the main shaft thimble and the auxiliary thimble are matched with the groove formed at the end part of the processed gear shaft in the axial direction.
3. The automatic locking tool for the gear shaft according to claim 1, is characterized in that: the mounting base orientation one side of lathe main shaft is equipped with the collar, wear to be equipped with a plurality of locking screws along circumference evenly distributed on the circumference side of collar, just the collar passes through locking screw and is connected with the main shaft thimble.
4. The automatic locking tool for the gear shaft according to claim 1, is characterized in that: a plurality of guide holes are formed in the mounting seat and the positioning disc, guide columns are arranged in the guide holes, the bottom ends of the guide columns are connected in the guide holes in the mounting seat in a sliding mode, and the top ends of the guide columns are connected in the guide holes in the positioning disc.
5. The automatic locking tool for the gear shaft according to claim 1, is characterized in that: and a guide arc surface for facilitating the clamping of a processed gear shaft into the positioning hole is arranged at the orifice of the positioning hole.
6. The automatic locking tool for the gear shaft according to claim 1, is characterized in that: at least three limiting screws are evenly distributed at intervals along the circumferential direction of the mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122923769.9U CN216503571U (en) | 2021-11-25 | 2021-11-25 | Gear shaft automatic locking frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122923769.9U CN216503571U (en) | 2021-11-25 | 2021-11-25 | Gear shaft automatic locking frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216503571U true CN216503571U (en) | 2022-05-13 |
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ID=81463649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122923769.9U Active CN216503571U (en) | 2021-11-25 | 2021-11-25 | Gear shaft automatic locking frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216503571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121819A (en) * | 2022-09-02 | 2022-09-30 | 溧阳市兴达机械有限公司 | Heating roller machining lathe |
-
2021
- 2021-11-25 CN CN202122923769.9U patent/CN216503571U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121819A (en) * | 2022-09-02 | 2022-09-30 | 溧阳市兴达机械有限公司 | Heating roller machining lathe |
| CN115121819B (en) * | 2022-09-02 | 2022-11-04 | 溧阳市兴达机械有限公司 | Heating roller machining lathe |
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