CN222448584U - A clamping device for a hollow bevel gear shaft - Google Patents
A clamping device for a hollow bevel gear shaft Download PDFInfo
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- CN222448584U CN222448584U CN202421266324.5U CN202421266324U CN222448584U CN 222448584 U CN222448584 U CN 222448584U CN 202421266324 U CN202421266324 U CN 202421266324U CN 222448584 U CN222448584 U CN 222448584U
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- bevel gear
- gear shaft
- hollow bevel
- clamping device
- pressing plate
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Abstract
本实用新型公开了一种空心锥齿轮轴的装夹装置，涉及空心锥齿轮齿轮加工技术领域，用于装夹空心锥齿轮轴，空心锥齿轮轴包括一体设置的转轴部和齿轮部；装夹装置包括：定位板，定位板的一端面设有锥形装配槽，且在定位板的轴线位置处设置定位孔，锥形装配槽用于容置齿轮部；压板，与锥形装配槽相适配，压板面向锥形装配槽的端面压紧空心锥齿轮轴；紧固件，用于连接定位板和压板。上述空心锥齿轮轴的装夹装置通过定位孔对转轴部贴合定位，同时通过调整紧固件使压板压紧转轴部，齿轮部与装夹装置之间从线接触改成面接触，从而使零件整体装夹更牢靠。而且将找正零件转换为找正工装，方便车零件内孔时装夹和找正，提高零件的加工精度和加工效率。
The utility model discloses a clamping device for a hollow bevel gear shaft, which relates to the technical field of hollow bevel gear processing, and is used for clamping a hollow bevel gear shaft, wherein the hollow bevel gear shaft comprises an integrally arranged shaft portion and a gear portion; the clamping device comprises: a positioning plate, wherein one end face of the positioning plate is provided with a conical assembly groove, and a positioning hole is provided at the axial position of the positioning plate, wherein the conical assembly groove is used to accommodate the gear portion; a pressing plate, which is adapted to the conical assembly groove, and the pressing plate presses the hollow bevel gear shaft against the end face of the conical assembly groove; and a fastener is used to connect the positioning plate and the pressing plate. The clamping device for the hollow bevel gear shaft fits and positions the shaft portion through the positioning hole, and at the same time, the fastener is adjusted to make the pressing plate press the shaft portion, and the line contact between the gear portion and the clamping device is changed to surface contact, thereby making the overall clamping of the part more secure. Moreover, the alignment part is converted into an alignment tool, which is convenient for clamping and alignment when turning the inner hole of the part, and improves the processing accuracy and processing efficiency of the part.
Description
Technical Field
The utility model relates to the technical field of hollow bevel gear machining, in particular to a clamping device for a hollow bevel gear shaft.
Background
In the prior art, when the tooth-shaped processing machine tool works, the tooth shape is further finished after rough machining, such as gear grinding and the like, the angle of the gear in the circumferential direction is adjusted to perform tool setting of the grinding wheel, and then the gear is fastened on a special fixture of a working table surface, so that the second side surface of the gear tooth can be ensured to be finished through the gear grinding.
At present, a part is clamped and aligned on a lathe in the horizontal lathe for turning an inner hole finished product of the part, and the part is a hollow bevel gear shaft, and the lathe is in line contact when clamping the taper outer circle, namely the clamping device is in line contact with the part, so that the part is not firmly clamped, the alignment precision is not high, and the precision of processing the gear is seriously affected.
Disclosure of utility model
The utility model aims to provide a clamping device for a hollow bevel gear shaft, which solves the technical problem of low alignment precision caused by the fact that part clamping is not firm.
In order to achieve the above object, the present utility model provides a clamping device for a hollow bevel gear shaft, for clamping the hollow bevel gear shaft, the hollow bevel gear shaft including a rotating shaft portion and a gear portion integrally provided, the clamping device comprising:
The locating plate is disc-shaped, one end face of the locating plate is provided with a conical assembly groove, a locating hole is formed in the axis position of the locating plate, the locating hole is communicated with the conical assembly groove, the conical assembly groove is used for accommodating the gear portion, and the locating hole is used for being attached to the rotating shaft portion for locating.
And the pressing plate is matched with the conical assembly groove, a through hole is formed in the axis position of the pressing plate and used for the rotating shaft part to penetrate through, and the pressing plate faces the end face of the conical assembly groove to press the hollow bevel gear shaft.
And the fastener is used for connecting the positioning plate and the pressing plate so as to clamp the hollow bevel gear shaft.
Preferably, the conical assembly groove is provided with a cylindrical groove at the position close to the end face of the positioning plate, the cylindrical groove is matched with the pressing plate, and the bottom surface of the cylindrical groove is abutted to the side surface of the gear part.
Preferably, the overall diameter of the pressing plate is smaller than the inner diameter of the cylindrical groove.
Preferably, the outer side surface array of the positioning plate is provided with a plurality of penetrating strip-shaped holes, the outer side surface array of the positioning plate is provided with a plurality of penetrating matching holes, the inner side surface array of the pressing plate is provided with a plurality of strip-shaped sliding grooves, and the strip-shaped sliding grooves are used for penetrating the fasteners.
Preferably, an annular clamping groove is formed in one side of the pressing plate, a buffer gasket is arranged in the annular clamping groove, and the side face of the buffer gasket is mutually attached to the side face of the gear portion.
Preferably, a set screw is arranged on the outer circumferential side surface of the pressing plate, and one end of the set screw is abutted against the circumferential side surface of the buffer gasket.
Preferably, a plurality of supporting springs are arranged in the annular clamping groove in an array mode, and the supporting springs are connected with the side faces of the buffer gaskets.
Preferably, a plurality of adjusting screw rods are arranged on the outer peripheral side surface of the positioning plate in an array mode, an arc-shaped limiting plate is arranged at one end of each adjusting screw rod, and the inner peripheral side surface of each arc-shaped limiting plate is abutted to the outer side surface of each gear portion.
Preferably, a gasket is arranged at the joint of the fastener and the outer side surface of the positioning plate.
Compared with the background art, the clamping device for the hollow bevel gear shaft has the advantages that after the rotating shaft part is placed into the conical assembly groove, the rotating shaft part is attached and positioned through the positioning hole, meanwhile, the pressing plate gradually enters the conical assembly groove until the rotating shaft part is pressed by adjusting the fastener, and the line contact between the gear part and the clamping device is changed into the surface contact, so that the whole clamping of a part is firmer. And after the part is stably fixed, the alignment reference of the part can be accurately transferred, the alignment part is converted into an alignment tool, the clamping and alignment during turning of the inner hole of the part are facilitated, and the machining precision of the part is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of another embodiment of the present utility model;
FIG. 3 is a schematic plan view of a platen according to an embodiment of the present utility model;
FIG. 4 is an enlarged schematic view of FIG. 1 at A;
Fig. 5 is an enlarged schematic view at B in fig. 2.
The special lathe comprises a 1-hollow bevel gear shaft, a 101-rotating shaft part, a 102-gear part, a 2-positioning plate, a 201-conical assembly groove, a 202-cylindrical groove, a 203-positioning hole, a 3-adjusting screw rod, a 4-arc limiting plate, a 5-pressing plate, a 6-through hole, a 7-fastener, an 8-gasket, a 9-strip hole, a 10-strip chute, an 11-matching hole, a 12-buffer gasket, a 13-set screw, a 14-supporting spring and a 15-lathe chuck.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present utility model.
As shown in fig. 1 and 2, a clamping device for a hollow bevel gear shaft 1 is used for clamping the hollow bevel gear shaft 1, the hollow bevel gear shaft 1 comprises a rotating shaft part 101 and a gear part 102 which are integrally arranged, and the clamping device comprises a positioning plate 2, a pressing plate 5 and a fastening piece 7 used for connecting the positioning plate 2 and the pressing plate 5.
The locating plate 2 is disc-shaped as a whole, the left end face of the locating plate 2 is provided with a conical assembly groove 201, a locating hole 203 is formed in the axis position of the locating plate 2, the locating hole 203 is communicated with the conical assembly groove 201, the conical assembly groove 201 is used for accommodating the gear part 102, the locating hole 203 is used for being attached to the rotating shaft part 101 for locating, and the fixing effect of the rotating shaft part 101 is enhanced in an auxiliary mode. After the rotating shaft part 101 is placed into the conical assembly groove 201, the rotating shaft part 101 is attached and positioned through the positioning hole 203, meanwhile, the pressing plate 5 gradually enters the conical assembly groove 201 until the rotating shaft part 101 is pressed, and the line contact between the gear part 102 and the clamping device is changed into the surface contact, so that the whole clamping of the part is firmer.
The cylindrical groove 202 is formed in the position, close to the right end face of the positioning plate 2, of the conical assembly groove 201, the cylindrical groove 202 is matched with the pressing plate 5, when the pressing plate 5 gradually enters the conical assembly groove 201 until the rotating shaft portion 101 is pressed, the bottom face of the cylindrical groove 202 can be abutted against the right side face of the gear portion 102, the contact area of the positioning plate 2 and the gear portion 102 is increased, and the stability of clamping the gear portion 102 by the positioning plate 2 is further improved.
In one embodiment of the present utility model, the overall diameter of the platen 5 is smaller than the inner diameter of the cylindrical groove 202, ensuring that the platen 5 can smoothly enter the cylindrical groove 202. And the thickness of the pressing plate 5 is as small as possible on the premise of meeting the clamping requirement, so that the weight of the pressing plate 5 is reduced, the whole weight of the clamping tool is reduced, and the operation is convenient.
It should be noted that, according to the shape of the hollow bevel gear shaft 1, the taper of the tapered fitting groove 201 is designed to ensure that the gear portion 102 of the hollow bevel gear shaft 1 can be fitted with the tapered fitting groove 201, thereby ensuring the stability of the hollow bevel gear shaft 1 after clamping.
In one embodiment of the utility model, the pressing plate 5 is matched with the conical assembly groove 201, a through hole 6 is arranged at the axial position of the pressing plate 5, the through hole 6 is used for the shaft part 101 to penetrate, and the end surface of the pressing plate 5 facing the conical assembly groove 201 presses the hollow bevel gear shaft 1, so that the fixing stability of the hollow bevel gear shaft 1 is further improved.
As shown in fig. 1 and 3, a plurality of penetrating strip-shaped holes 9 are arranged on the outer side face array of the positioning plate 2, the strip-shaped holes 9 are located on the inner side of the conical assembly groove 201, a plurality of penetrating matching holes 11 are arranged on the outer side face array of the gear part 102, a plurality of strip-shaped sliding grooves 10 are arranged on the inner side face array of the pressing plate 5, the strip-shaped sliding grooves 10 are used for penetrating the fastening pieces 7, when parts with different specifications and sizes are clamped, namely, the sizes of the gear part 102 are changed, the positions of the fastening pieces 7 in the sliding grooves are changed, and the positions of the fastening pieces 7 in the strip-shaped holes 9 are synchronously changed, so that the fastening pieces 7 can penetrate the matching holes 11 more accurately.
As shown in fig. 4, an annular clamping groove is formed on the right side of the pressing plate 5, a buffer pad is arranged in the annular clamping groove, the buffer pad 12 is preferably made of copper, and can be made of other materials with better performance, and the side surface of the buffer pad 12 is mutually attached to the side surface of the gear part 102, so that the side surface of the gear part 102 is uniformly stressed, and the safety is better. The outer circumferential side surface of the pressing plate 5 is provided with a set screw 13, one end of the set screw 13 is abutted against the circumferential side surface of the buffer gasket 12, and if the subsequent tooling is worn, the copper pad is convenient to replace.
In addition, as shown in fig. 5, in another embodiment of the present utility model, a plurality of supporting springs 14 may be arranged in an array in the annular clamping groove, and the buffer pad 12 is connected through the plurality of supporting springs 14, where the arrangement of the supporting springs 14 can ensure that the pressing plate 5 abuts against the part, and meanwhile, avoid the contact surface of the part from being damaged due to larger acting force of the pressing plate 5.
In one embodiment of the present utility model, a plurality of adjusting screws 3 are arranged on the outer peripheral side surface of the positioning plate 2 in an array, one end of each adjusting screw 3 is provided with an arc-shaped limiting plate 4, when clamping parts with different sizes, each adjusting screw 3 is rotated to make the inner peripheral side surface of each adjusting screw 4 abut against the outer side surface of the gear part 102, and it is noted that the lengths of the extending of each adjusting screw 3 out of the assembly groove are the same, so as to ensure accurate matching of the rotating shaft part 101 and the positioning hole 203.
Preferably, the inner diameter of the arc limiting plate 4 can be designed according to the shape of the hollow bevel gear shaft 1 to be clamped, namely, the inner side surface of the arc limiting plate 4 can be completely attached to the outer side surface of the gear part 102, so that the circumferential side surface of the gear part 102 is in more comprehensive abutting connection, and the stability of clamping is further ensured.
In one embodiment of the present utility model, the fastener 7 is used to connect the positioning plate 2 and the pressing plate 5 to complete the clamping of the hollow bevel gear shaft 1. And a gasket 8 is arranged at the joint of the fastener 7 and the outer side surface of the locating plate 2, so that the bolt is prevented from rigidly contacting the locating plate 2, and the connection strength between the bolt and the locating plate 2 is increased.
It should be noted that, the diameter of the mating hole 11 is larger than the outer diameter of the fastener 7, so that the fastener 7 can smoothly pass through the mating hole 11, and the fastener 7 is prevented from contacting the hollow bevel gear shaft 1, so as to ensure accurate positioning of the gear portion 102 in the clamping process.
In addition, in another embodiment of the present utility model, a plurality of guide strips 16 are arranged on the inner peripheral side surface of the through hole 6 in an array manner, and a plurality of key grooves are arranged on the outer peripheral surface of the hollow bevel gear shaft 1 in an array manner, and the guide strips 16 are slidably connected with the key grooves, so as to assist the pressing plate 5 to stably press the hollow bevel gear shaft 1, ensure that the pressing plate 5 does not shift and rotate relative to the hollow bevel gear shaft 1 during the processing of the hollow bevel gear shaft 1, and thereby improve the processing precision of the hollow bevel gear shaft 1.
When the utility model is used, the rotating shaft part 101 is inserted into the positioning hole 203, the adjusting screw rod 3 is screwed, the arc limiting plate 4 is utilized to assist in fixing the gear part 102, the position of the fastening piece 7 is adjusted according to the size of the gear part 102 and the position of the matching hole 11, the fastening piece 7 passes through the strip-shaped hole 9, the matching hole 11 and the strip-shaped sliding groove 10, the other end of the fastening piece 7 is fixed through the nut, the fastening pieces 7 are screwed in sequence, the pressing plate 5 gradually enters the conical assembly groove 201 until the rotating shaft part 101 is pressed, the part fixing is finished, the positioning plate 2 is fixed through the lathe chuck 15, the part is processed, the left end face of the positioning plate 2 is aligned, and the left end inner hole of the finished product is turned. The gear part 102 is fixed with the clamping device by changing the line contact into the surface contact, so that the alignment reference of the part can be transferred more accurately, the alignment part is converted into an alignment tool, the clamping and alignment are convenient when the inner hole of the part is turned, and the machining precision and the machining efficiency of the part are effectively improved.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that the present utility model may be modified and practiced without departing from the spirit of the present utility model.
Claims (9)
1. The clamping device for the hollow bevel gear shaft is characterized by being used for clamping the hollow bevel gear shaft, the hollow bevel gear shaft comprises a rotating shaft part and a gear part which are integrally arranged, and the clamping device comprises:
The positioning plate is disc-shaped, one end face of the positioning plate is provided with a conical assembly groove, a positioning hole is formed in the axis position of the positioning plate, the positioning hole is communicated with the conical assembly groove, the conical assembly groove is used for accommodating the gear part, and the positioning hole is used for being attached to the rotating shaft part for positioning;
The pressing plate is matched with the conical assembly groove, a through hole is formed in the axis position of the pressing plate and used for the rotating shaft part to penetrate through, and the end face of the pressing plate, facing the conical assembly groove, is used for pressing the hollow bevel gear shaft;
And the fastener is used for connecting the positioning plate and the pressing plate so as to clamp the hollow bevel gear shaft.
2. The clamping device for the hollow bevel gear shaft according to claim 1, wherein a cylindrical groove is formed in the conical assembly groove near the end face of the positioning plate, the cylindrical groove is matched with the pressing plate, and the bottom surface of the cylindrical groove is abutted against the side surface of the gear portion.
3. The clamping device for the hollow bevel gear shaft according to claim 2, wherein the overall diameter of the pressing plate is smaller than the inner diameter of the cylindrical groove.
4. The clamping device for the hollow bevel gear shaft according to claim 1, wherein a plurality of penetrating strip-shaped holes are formed in the outer side face of the positioning plate in an array mode, a plurality of penetrating matching holes are formed in the outer side face of the positioning plate in an array mode, a plurality of strip-shaped sliding grooves are formed in the inner side face of the pressing plate in an array mode, and the strip-shaped sliding grooves are used for penetrating the fastening pieces.
5. The clamping device for the hollow bevel gear shaft according to claim 1, wherein an annular clamping groove is formed in one side of the pressing plate, a buffer gasket is arranged in the annular clamping groove, and the side face of the buffer gasket is mutually attached to the side face of the gear portion.
6. The clamping device for the hollow bevel gear shaft of claim 5, wherein a set screw is arranged on the outer circumferential side surface of the pressing plate, and one end of the set screw is abutted against the circumferential side surface of the buffer gasket.
7. The clamping device for the hollow bevel gear shaft of claim 5, wherein a plurality of supporting springs are arranged in the annular clamping groove in an array mode, and the supporting springs are connected with the side face of the buffer gasket.
8. The clamping device for the hollow bevel gear shaft according to claim 1, wherein a plurality of adjusting screw rods are arranged on the outer peripheral side surface of the positioning plate in an array mode, an arc-shaped limiting plate is arranged at one end of each adjusting screw rod, and the inner peripheral side surface of each arc-shaped limiting plate is abutted to the outer side surface of the corresponding gear portion.
9. The clamping device for the hollow bevel gear shaft according to claim 1, wherein a gasket is arranged at the joint of the fastener and the outer side surface of the positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421266324.5U CN222448584U (en) | 2024-06-05 | 2024-06-05 | A clamping device for a hollow bevel gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421266324.5U CN222448584U (en) | 2024-06-05 | 2024-06-05 | A clamping device for a hollow bevel gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222448584U true CN222448584U (en) | 2025-02-11 |
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ID=94452288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421266324.5U Active CN222448584U (en) | 2024-06-05 | 2024-06-05 | A clamping device for a hollow bevel gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222448584U (en) |
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2024
- 2024-06-05 CN CN202421266324.5U patent/CN222448584U/en active Active
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