CN218224967U - Clamp for gear shaft machining - Google Patents
Clamp for gear shaft machining Download PDFInfo
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- CN218224967U CN218224967U CN202222405547.2U CN202222405547U CN218224967U CN 218224967 U CN218224967 U CN 218224967U CN 202222405547 U CN202222405547 U CN 202222405547U CN 218224967 U CN218224967 U CN 218224967U
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- gear shaft
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- anchor clamps
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Abstract
The application provides an anchor clamps for gear shaft processing belongs to gear shaft processing equipment field, including the anchor clamps body, the anchor clamps body top is equipped with the location lid that is used for pressing from both sides tight location gear shaft, and location lid fixedly connected with is used for the limiting and helps the stop device of gear shaft processing. Set up stop device, frock gear and location lid wherein, act as the caliber and together, play the effect of pinpointing, the anchor clamps body presss from both sides tight work piece according to above-mentioned location position, because the structure of frock gear for when hobbing cutter is carried out to the gear shaft, the direction of feed of hobbing cutter is the most accurate, can carry out the processing of the best structural condition of tooth top tooth's socket staggered teeth distribution to two gears of gear shaft, makes the gear shaft after the processing have optimal rigidity and intensity, improves the life of gear shaft.
Description
Technical Field
The utility model belongs to gear shaft processing equipment field especially relates to an anchor clamps for gear shaft processing.
Background
When the transmission device needs to design two gears on a shaft to meet the transmission requirement, from the transmission position, the gears arranged on the circumference of the shaft, and in most cases, the arrangement of the tooth tops and the tooth grooves of the two gears on the circumference is not specially required, because the strength of the shaft is generally not influenced.
However, when the number of teeth of the two gears is the same, the weakening axis strength and rigidity shown in fig. 6 and 7 occur randomly: as shown in fig. 6, the tooth top center of the third gear 41 is offset from the tooth space center of the fourth gear 42, the wall thickness of the first maximum diameter part 40 between the tooth spaces of the two gears is not uniform or the two tooth spaces are partially penetrated, and the strength and the rigidity of the shaft are weakened; as shown in fig. 7, the tooth top center of the fifth gear 51 is most deviated from the tooth top center of the sixth gear 52, the tooth top center of the fifth gear 51 is aligned with the tooth top center of the sixth gear 52, and the two gear teeth at the second maximum diameter position 50 between the two gear teeth completely penetrate, which seriously weakens the strength and rigidity of the shaft.
That is, when the maximum outer circular wall thickness of the tooth grooves of the two gears is not uniform, when the two tooth grooves are communicated, the dangerous section of the shaft is cut off in the processing, the strength and the rigidity of the shaft are weakened, when the shaft is transmitted with other shaft gears, the gear shaft is easy to damage, the service life is reduced, the shaft is not in accordance with the production requirement in terms of design, and if the strength and the rigidity of the shaft are improved by increasing the shaft diameter, the cost is increased.
The existing gear shaft machining clamp (with the patent application number of CN 202020454626.0) comprises a clamping seat, wherein a tapered groove is formed in the center of the top of the clamping seat, a cavity is formed in the clamping seat, sliding grooves are formed in two opposite sides of the inner wall of the cavity, limiting grooves are formed in two sides, close to the sliding grooves, of the top of the cavity, matched limiting plates are arranged in the sliding grooves, inclined plates are fixedly arranged at the tops of the limiting plates, matched sliding blocks are fixedly arranged on one sides, located in the sliding grooves, of the limiting plates, and connecting plates are fixedly arranged between the bottoms of the limiting plates.
The scheme is suitable for clamping various gear shafts, but does not solve the problem that the rigidity and the strength of the shaft are reduced when the number of teeth of two gears is the same in the process of machining the gear shaft.
SUMMERY OF THE UTILITY MODEL
The application provides a clamp for processing a gear shaft, and aims to solve the problem that when the number of teeth of two gears is the same in the process of processing the gear shaft, the rigidity and the strength of the shaft are reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
including the anchor clamps body, anchor clamps body top is equipped with the location lid that is used for pressing from both sides tight location gear shaft, and location lid fixedly connected with is used for the limiting device who limits and assist gear shaft processing.
Preferably, the limiting device comprises a movable positioning pin, a connector and a tooling gear which is meshed with the second gear in the gear shaft, the upper end of the movable positioning pin is fixed with the tooling gear, the lower end of the movable positioning pin is connected with the connector into a whole, and a connecting key is fixed on the outer side of the connector.
Preferably, the positioning cover end face is provided with a key groove, and the connector and the connecting key are installed on the key groove.
Preferably, the limiting device comprises a telescopic rod, a driving motor and a tool gear meshed with the second gear in the gear shaft, the upper end of the telescopic rod is fixed with the tool gear, the lower end of the telescopic rod penetrates through the positioning cover (21) to be connected with the driving motor, and the driving motor is fixed at the lower end of the positioning cover.
Preferably, the positioning cover comprises a positioning circular truncated cone used for clamping the gear shaft, and the limiting device is located on one side of the positioning circular truncated cone.
Preferably, the head part of the positioning circular truncated cone is fixed with a limit bearing for limiting the lower end of the gear shaft.
The utility model discloses following beneficial effect has:
set up stop device, the effect that the frock gear wherein acts as the caliber, because the structure of frock gear, the connection relation of keyway to the frock gear is passed through to the location lid, and the meshing relation of the second gear of frock gear and gear shaft makes when carrying out the gear hobbing to the gear shaft, the direction of feed of hobbing cutter is the most accurate, can carry out the processing of the best structural condition of tooth top tooth's socket staggered teeth distribution to two gears of gear shaft, make the gear shaft after the processing have optimal rigidity and intensity, improve the life of gear shaft.
Drawings
FIG. 1 is a schematic structural view of a fixture for gear shaft machining in the present invention
FIG. 2 is a schematic structural view of the first limiting device and the clamp of the present invention
FIG. 3 is a schematic structural view of the second limiting device and the clamp of the present invention
Fig. 4 is a schematic diagram illustrating the working principle of the middle limiting device of the present invention
FIG. 5 is a schematic structural view of the gear shaft in the best processing state
FIG. 6 is a schematic structural view of a gear shaft in a general machining state of the present invention
Fig. 7 is a schematic structural view of the gear shaft in the worst processing state of the present invention
The gear positioning device comprises a 1-limiting device, 11-tooling gears, 12-movable positioning pins, 13-connectors, 14-connecting keys, 15-telescopic rods, 16-driving motors, 2-fixture bodies, 21-positioning covers, 211-key grooves, 212-positioning circular truncated cones, 3-gear shafts, 30-maximum-diameter positions, 31-first gears, 32-second gears, 4-common gear shafts, 40-first maximum-diameter positions, 41-third gears, 42-fourth gears, 5-worst gear shafts, 50-second maximum-diameter positions, 51-fifth gears and 52-sixth gears.
Detailed Description
Example 1
As shown in fig. 1 and 2, the clamp for processing the gear shaft comprises a clamp body 2, a positioning cover 21 for clamping the gear shaft 3 is arranged at the top of the clamp body 2, and a limiting device 1 for limiting and assisting the processing of the gear shaft 3 is fixedly connected to the positioning cover 21.
Stop device 1 includes movable positioning pin 12, connector 13 and is arranged in with the gear shaft 3 in the frock gear 11 of second gear 32 meshing, and movable positioning pin 12 upper end is fixed with frock gear 11, and movable positioning pin 12 lower extreme is connected formula as an organic whole with connector 13, is fixed with connector 14 in the connector 13 outside.
The end face of the positioning cover 21 is provided with a key groove 211, and the connecting head 13 and the connecting key 14 are arranged on the key groove 211.
The limiting device 1 is fixedly connected with the key groove 211 through the connector 13 and the connecting key 14 by calculating the angle, does not move relatively, and the tool gear 11 is also fixedly connected with the top of the movable positioning pin 12 and does not rotate relatively.
The working principle of the device is as follows: firstly, taking a gear shaft 3 to be machined, placing the gear shaft 3 at a position corresponding to a positioning cover 21 for clamping, then hobbing the gear shaft 3 to generate a second gear 32, taking the gear shaft 3 out, then installing a limiting device 1 corresponding to a key groove 211, placing the gear shaft 3 in the positioning cover 21 according to the fixed tooling gear 11, adjusting the rotation of the second gear 32 until the second gear is meshed with the tooling gear 11, entering a hobbing cutter from the direction of an arrow in a figure 4 at the moment, wherein the direction of the arrow is the feeding direction of the hobbing cutter, then detaching the limiting device 1, starting the hobbing cutter, hobbing the upper part of the second gear 32 to generate a first gear 31, and finally, taking out the gear shaft 3 to complete machining.
The above operations are repeated to complete the machining of the plurality of gear shafts 3. The hob structure is conventional prior art, the main device of the scheme is a fixture matched with the hob for processing, the processing process of the hob is stated here, so that the effect and structural characteristics of the device of the scheme can be more clearly understood by a person skilled in the art, the hob is not the main content to be explained, and the hob structure is not explained in detail here.
The gear shaft 3 after being taken out is shown in fig. 5, at the moment, the tooth top center of the first gear 31 is just opposite to the tooth space center of the second gear 32, the wall thickness of the maximum diameter part 30 between the two gear tooth spaces is uniform, and the gear shaft 3 keeps the strength and the rigidity with the optimal effect.
In fig. 4, the tooling gear 11 is fixed, the second gear 32 of the gear shaft 3 is already machined, and the gear shaft 3 is rotated to make the second gear 32 mesh with the tooling gear 11, which represents that the hobbing starting point of the first gear 31 is adjusted, the tooling gear 11 is used as a measurer, and through the angular relationship after the tooth socket of the tooling gear 11 meshes with the tooth socket of the second gear 32, the position where the hobbing of the first gear 31 starts corresponds to the tooth top center of the second gear 32 in the vertical direction, so that the first gear 31 after hobbing can reach the optimal corresponding state with the second gear 32, and the optimal gear shaft 3 is machined.
Example 2
The present embodiment differs from the above embodiments in that: as shown in fig. 3, the limiting device 1 includes an expansion link 15, a driving motor 16 and a tooling gear 11 engaged with a second gear 32 in the gear shaft 3, the upper end of the expansion link 15 is fixed to the tooling gear 11, the lower end of the expansion link 15 passes through the positioning cover 21 and is connected to the driving motor 16, and the driving motor 16 is fixed to the lower end of the positioning cover 21.
Stop device 1 in this embodiment need not install and dismantle in the course of working to gear shaft 3, and when the gear hobbing formed second gear 32, telescopic link 15 drove frock gear 11 and rises under driving motor 16's effect, and after adjusting the angle of gear shaft 3 according to second gear 32, telescopic link 15 drove frock gear 11 and descends, processes the gear hobbing operation of first gear 31 again.
The processing process is more automatic, the processing can be completed without excessive manual participation, and the processing working efficiency is improved.
Example 3
As shown in fig. 1, the positioning cover 21 includes a positioning boss 212 for clamping the gear shaft 3, and the limiting device 1 is located on one side of the positioning boss 212.
The head of the positioning round platform 212 is fixed with a limit bearing for limiting the lower end of the gear shaft 3.
When the gear shaft 3 is installed, the lower end of the gear shaft is inserted into the bearing inner ring and clamped tightly, so that when the gear shaft 3 is machined by the hob, the hob can synchronously rotate without relative displacement, and the machining accuracy is guaranteed.
The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (6)
1. The utility model provides an anchor clamps for gear shaft processing, includes the anchor clamps body (2), its characterized in that, anchor clamps body (2) top is equipped with location lid (21) that are used for pressing from both sides tight location gear shaft (3), and location lid (21) fixedly connected with is used for limiting and assists stop device (1) of gear shaft (3) processing.
2. The clamp for processing the gear shaft is characterized in that the limiting device (1) comprises a movable positioning pin (12), a connector (13) and a tooling gear (11) which is meshed with a second gear (32) in the gear shaft (3), the upper end of the movable positioning pin (12) is fixed with the tooling gear (11), the lower end of the movable positioning pin (12) is connected with the connector (13) into a whole, and a connecting key (14) is fixed on the outer side of the connector (13).
3. The jig for gear shaft machining according to claim 2, wherein the end face of the positioning cap (21) is provided with a key groove (211), and the coupling head (13) and the coupling key (14) are mounted on the key groove (211).
4. The clamp for processing the gear shaft is characterized in that the limiting device (1) comprises a telescopic rod (15), a driving motor (16) and a tooling gear (11) which is meshed with a second gear (32) in the gear shaft (3), the upper end of the telescopic rod (15) is fixed with the tooling gear (11), the lower end of the telescopic rod (15) penetrates through a positioning cover (21) to be connected with the driving motor (16), and the driving motor (16) is fixed at the lower end of the positioning cover (21).
5. A fixture for gear shaft machining according to any one of claims 1-4, characterized in that the positioning cover (21) comprises a positioning boss (212) for clamping the gear shaft (3), and the limiting device (1) is located on one side of the positioning boss (212).
6. The clamp for processing the gear shaft as claimed in claim 5, wherein the head of the positioning circular truncated cone (212) is fixed with a limit bearing for limiting the lower end of the gear shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222405547.2U CN218224967U (en) | 2022-09-09 | 2022-09-09 | Clamp for gear shaft machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222405547.2U CN218224967U (en) | 2022-09-09 | 2022-09-09 | Clamp for gear shaft machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218224967U true CN218224967U (en) | 2023-01-06 |
Family
ID=84663118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222405547.2U Active CN218224967U (en) | 2022-09-09 | 2022-09-09 | Clamp for gear shaft machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218224967U (en) |
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2022
- 2022-09-09 CN CN202222405547.2U patent/CN218224967U/en active Active
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