CN219786836U - Clamp for clamping gears - Google Patents
Clamp for clamping gears Download PDFInfo
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- CN219786836U CN219786836U CN202320976827.0U CN202320976827U CN219786836U CN 219786836 U CN219786836 U CN 219786836U CN 202320976827 U CN202320976827 U CN 202320976827U CN 219786836 U CN219786836 U CN 219786836U
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- 210000000078 claw Anatomy 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 10
- 238000000429 assembly Methods 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010862 gear shaping Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of gear machining, in particular to a clamp for clamping gears, which comprises: the three-jaw chuck comprises a three-jaw chuck body and three annularly arranged jaw assemblies for clamping gears, wherein each jaw assembly is arranged on the three-jaw chuck body in a sliding mode, each jaw assembly comprises a contact part and a plurality of anti-rotation parts, each anti-rotation part is connected with the contact part, when the three jaw assemblies clamp the gears, the contact parts are attached to the tooth top cylindrical surfaces of the gears, and each anti-rotation part is arranged in a corresponding tooth slot of the gears and attached to the slot surface of the tooth slot.
Description
Technical Field
The utility model relates to the technical field of gear machining, in particular to a clamp for clamping gears.
Background
The rim of the gear is provided with a plurality of gear teeth, the gear teeth of the two gears can be continuously meshed and transmit motion and power, the gear teeth are processed in a gear shaping processing mode, a gear milling processing mode, a gear hobbing processing mode or a gear shaving processing mode, the end faces of the gear teeth are processed in a turning or milling mode, and in order to ensure the perpendicularity of the gear end faces and the gear teeth, the gear end faces and the gear teeth are mutually processing datum planes, for example, the gear teeth are firstly used as the processing datum planes, the gear end faces are processed, and then the gear end faces are used as the processing datum planes, and the gear teeth are processed.
The conventional lathe comprises a three-jaw chuck, as shown in fig. 1, wherein the three-jaw chuck comprises three jaws 90, the clamping surface of each jaw 90 is an arc surface, before a gear 91 is machined, the three jaws 90 clamp teeth of the gear 91, the arc surfaces are attached to the tooth top cylindrical surface of the gear 91, and the end surface of the gear 91 is turned by a turning tool, but: when the claw 90 clamps the gear 91, the circular arc surface is only in contact with the tooth top cylindrical surface of the gear 91, and the tooth slot is not in contact with the circular arc surface, so that the actual contact area of the circular arc surface and the gear 91 is smaller, and when the turning tool turns the end surface of the gear 91, the gear 91 or the turning tool rotates circumferentially, and the processing of the gear is affected.
There is therefore a need to provide a clamp for clamping a gear that does not rotate circumferentially after clamping.
Disclosure of Invention
The utility model mainly aims to provide a clamp for clamping gears, wherein the clamp for clamping gears comprises a three-jaw chuck body and three-ring-shaped jaw assemblies for clamping gears, each jaw assembly is arranged on the three-jaw chuck body in a sliding mode, each jaw assembly comprises a contact part and a plurality of anti-rotation parts, each anti-rotation part is connected with the contact part, when the three jaw assemblies clamp the gears, the contact parts are attached to tooth top cylindrical surfaces of the gears, each anti-rotation part is arranged in a corresponding tooth groove of each gear and is attached to a groove surface of each tooth groove, and due to the fact that the anti-rotation parts are fixed in positions, the anti-rotation parts embedded in the tooth grooves can effectively prevent the gears from rotating circumferentially.
The utility model further aims to provide a clamp for clamping gears, wherein the connecting piece is provided with a plurality of mounting holes, the anti-rotation piece comprises an embedded part and two mounting parts, the two mounting parts respectively extend into the two corresponding mounting holes, the mounting holes are through holes, the maximum radial dimension of each mounting part is equal to the aperture of each mounting hole, and two ends of each mounting part are respectively welded with two end edges of the corresponding mounting hole, so that the connection between the mounting parts and the connecting piece is realized through welding.
The utility model further provides a clamp for clamping gears, wherein the connecting piece is provided with a plurality of mounting holes, the anti-rotation piece comprises an embedded part and two mounting parts, the two mounting parts respectively extend into the two corresponding mounting holes, the mounting holes are blind holes, each mounting part is provided with external threads, each mounting hole is provided with internal threads, each mounting part is in threaded connection with the corresponding mounting hole, the threaded surface of each mounting part is coated with a thread compound, and the mounting parts are in threaded connection with the connecting piece and are fastened through the thread compound.
The utility model further provides a clamp for clamping gears, wherein the connecting piece is provided with a plurality of mounting holes, the anti-rotation piece comprises an embedded part and two mounting parts, the two mounting parts respectively extend into the two corresponding mounting holes, one end of each mounting hole, which is away from the connecting part, is provided with a notch, the anti-rotation piece further comprises two nuts, each notch is internally provided with one nut, each nut is in threaded connection with the corresponding mounting part, the nuts are abutted against the wall surface of the corresponding notch, the mounting parts are further fixed through the nuts, and the nuts and the mounting parts are detachable.
In order to achieve at least one of the above objects, the present utility model provides a clamp for clamping gears, comprising a three-jaw chuck plate body, wherein the clamp for clamping gears further comprises:
the claw assembly is used for clamping the gear, each claw assembly is arranged on the three-jaw chuck body in a sliding mode, each claw assembly comprises a contact part and a plurality of anti-rotation pieces, each anti-rotation piece is connected with the contact part, when the claw assembly clamps the gear, the contact part is attached to the tooth top cylindrical surface of the gear, and each anti-rotation piece is arranged in a corresponding tooth slot of the gear and attached to the slot surface of the tooth slot.
In one or more embodiments of the present utility model, each of the jaw assemblies includes a connecting member and a moving member, the moving member is slidably disposed on the three-jaw chuck body, one end of the moving member facing away from the three-jaw chuck body has a connecting portion, one surface of the connecting member is connected to the connecting portion, the other surface of the connecting member is the contact portion, and the connecting member is located between the gear and the connecting portion.
In one or more embodiments of the present utility model, the connecting piece is provided with a plurality of accommodating hole combinations, each accommodating hole combination includes two mounting holes arranged at intervals, the two mounting holes are respectively located at two sides of the connecting piece, the accommodating hole combinations and the anti-rotation piece are in one-to-one correspondence, the anti-rotation piece includes a fitting part and two mounting parts, the fitting part is respectively located between the two mounting parts, the two mounting parts respectively extend into the corresponding two mounting holes, and each mounting part is connected with the connecting piece.
In one or more embodiments of the present utility model, the mounting holes are through holes, and the maximum radial dimension of the mounting portion is equal to the aperture of the mounting hole, and two ends of each mounting portion are welded with two end holes of the corresponding mounting hole respectively.
In one or more embodiments of the present utility model, the mounting holes are blind holes, each of the mounting portions has an external thread, each of the mounting holes has an internal thread, and each of the mounting portions is screwed with the corresponding mounting hole.
In one or more embodiments of the utility model, the threaded surface of each of the mounting portions is coated with a thread compound.
In one or more embodiments of the present utility model, one end of each mounting hole facing away from the connecting portion has a notch, the anti-rotation member further includes two nuts, each notch is provided with one nut, each nut is in threaded connection with the corresponding mounting portion, and the nut abuts against a wall surface of the corresponding notch.
In one or more embodiments of the present utility model, the end of the moving member having the connection portion further has two supporting surfaces arranged at intervals, and a distance from the supporting surface to an end surface of the connection portion facing away from the end of the three-jaw chuck body is equal to a height of the connection member.
In one or more embodiments of the present utility model, the moving member has a plurality of stepped holes, and one of the stepped holes is located between two of the supporting surfaces.
In one or more embodiments of the present utility model, one end of the moving member, which is close to the three-jaw chuck body, has two tooth slots arranged at intervals.
In the embodiment of the utility model, the clamp for clamping the gear comprises the claw assemblies which are arranged in a three-ring shape and are used for clamping the gear, each claw assembly comprises a contact part and a plurality of anti-rotation parts, each anti-rotation part is connected with the contact part, when the three claw assemblies clamp the gear, the contact part is attached to the tooth top cylindrical surface of the gear, each anti-rotation part is arranged in a corresponding tooth slot of the gear and is attached to the slot surface of the tooth slot, and because the positions of the anti-rotation parts are fixed, the anti-rotation parts embedded in the tooth slot can effectively prevent the gear from rotating circumferentially.
Drawings
These and/or other aspects and advantages of the present utility model will become more apparent and more readily appreciated from the following detailed description of the embodiments of the utility model, taken in conjunction with the accompanying drawings, wherein:
FIG. 1 illustrates a schematic diagram of a prior art three-jaw chuck with jaws gripping a gear;
FIG. 2 illustrates a schematic view of the three jaw assembly of the present utility model gripping a gear;
FIG. 3 illustrates a partial enlarged view at C of FIG. 2;
FIG. 4 illustrates a schematic diagram of a jaw assembly according to an embodiment of the utility model;
FIG. 5 illustrates a schematic structural view of an anti-rotation member;
FIG. 6 illustrates a schematic structural view of a connector;
FIG. 7 illustrates a schematic construction of a lower jaw assembly according to a third embodiment of the utility model;
fig. 8 illustrates a schematic structural view of a moving member at a certain view angle according to an embodiment of the present utility model.
Description of the embodiments
The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the utility model. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the utility model is provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.
Summary of the application
When a claw with an arc surface is used for clamping a gear, the arc surface is only in contact with the tooth top cylindrical surface of the gear, and a tooth slot is not in contact with the arc surface, so that the actual contact area of the arc surface and the gear is small, and when the end surface of the gear is turned by a turning tool, the gear or the gear rotates circumferentially, and the processing of the gear is affected.
Based on the technical problems, the utility model provides the clamp for clamping the gear, wherein the clamp for clamping the gear is simple in structure, does not relate to complex manufacturing process and expensive materials, has higher economical efficiency, and is easy to produce, low in cost, beneficial to control the production cost and further beneficial to product popularization and use for manufacturers.
A clamp schematically used for clamping a gear wheel,
referring to fig. 2 to 8, a clamp for clamping gears according to any of the preferred embodiments of the present utility model includes a three-jaw chuck body (not shown) and a wire tray (not shown), the wire tray is rotatably mounted on the three-jaw chuck body, and since the three-jaw chuck body and the wire tray are technically mature, they are widely used in the market, detailed structures and models of the three-jaw chuck body and the wire tray, including but not limited to the three-jaw chuck body and the wire tray disclosed in patent document (CN 200920168567.4), will not be repeated herein.
Further, in any embodiment of the present utility model, as shown in fig. 2, the fixture for clamping gears further includes three annularly arranged jaw assemblies 10 for clamping gears, each jaw assembly 10 is slidably disposed on the three-jaw chuck body, specifically, the three-jaw chuck body has three annularly arranged guiding sliding grooves (not shown), and each guiding sliding groove is slidably provided with one jaw assembly 10 therein; in addition, as shown in fig. 3 and 4, each jaw assembly 10 includes a contact portion 101 and a plurality of anti-rotation members 102, and each anti-rotation member 102 is connected to the contact portion 101, in the present utility model, each jaw assembly 10 includes five anti-rotation members 102, which are in an inclined arrangement in the embodiment of the clamping bevel gear.
It should be noted that, as shown in fig. 1, the claw in the prior art is in an arc surface, when the gear is clamped, the arc surface of the claw is only in contact with the tooth top cylindrical surface of the gear, but the tooth slot is not in contact with the claw, so that the actual contact is small, and the gear or the circumferential rotation occurs after the gear is clamped; in any embodiment of the present utility model, by providing the anti-rotation member 102, when the three jaw assemblies 10 clamp the gear, as shown in fig. 3, the contact portion 101 is attached to the tooth top cylindrical surface of the gear, and each anti-rotation member 102 is disposed in a corresponding tooth slot of the gear and attached to the slot surface of the tooth slot, and because the anti-rotation member 102 is fixed on the contact portion 101, its position is fixed, and therefore when the anti-rotation member 102 is embedded in the tooth slot of the gear and abuts against the slot surface of the tooth slot, the gear will not rotate in the circumferential direction, thereby realizing the advantage that the gear will not rotate circumferentially after clamping.
Further, in any embodiment of the present utility model, as shown in fig. 4, each jaw assembly 10 includes a connecting member 103 and a moving member 104, the moving member 104 is slidably disposed on the three-jaw chuck body, one end of the moving member 104 facing away from the three-jaw chuck body has a connecting portion 1041, one surface of the connecting member 103 is attached to and connected with the connecting portion 1041, the other surface of the connecting member 103 is the contact portion 101, the contact portion 101 is an arc surface, and when the three jaw assemblies 10 clamp the gear, the connecting member 103 is located between the gear and the connecting portion 1041.
Specifically, in order to realize that one surface of the connecting piece 103 is attached to and connected with the connecting portion 1041, one surface of the connecting piece 103 facing away from the contact portion 101 is provided with two threaded holes (not shown in the drawing), the connecting portion 1041 is provided with two through fastening holes (not shown in the drawing), one surface of the connecting piece 103 provided with the threaded holes is an arc surface, the surface of the connecting portion 1041 provided with the fastening holes is an arc surface, the threaded holes and the fastening holes are in one-to-one correspondence, when the connecting portion 1041 and the connecting piece 103 are attached to each other, each threaded hole is opposite to the corresponding fastening hole, and the fastening holes are penetrated through fasteners and are in threaded connection with the threaded holes, so that attachment of one surface of the connecting piece 103 and the connecting portion 1041 is realized.
Further, in any embodiment of the present utility model, as shown in fig. 4 and 5, each anti-rotation member 102 includes a fitting portion 1021 and a mounting portion 1022, the fitting portion 1021 is located between two mounting portions 1022, each mounting portion 1022 and the fitting portion 1021 are arranged in an inclined manner, in order to mount the anti-rotation member 102 on the connecting member 103, the connecting member 103 has a plurality of receiving hole combinations (not shown in the drawings), as shown in fig. 6, each receiving hole combination includes two mounting holes 1031 arranged at intervals, the two mounting holes 1031 are located on two sides of the connecting member 103, the receiving hole combinations and the anti-rotation member 102 are in one-to-one correspondence, the two mounting portions 1022 extend into the corresponding two mounting holes 1031, and each mounting portion 1022 is connected with the connecting member 103; specifically, the anti-rotation member 102 is a cylinder, and two ends of the anti-rotation member 102 are connected to the two mounting portions 1022 by welding.
In the first embodiment of the present utility model, in order to realize that each of the mounting portions 1022 is connected to the connecting piece 103, the mounting hole 1031 is a through hole, the maximum radial dimension of the mounting portion 1022 is equal to the aperture of the mounting hole 1031, the end of one end of each of the mounting portions 1022 facing away from the fitting portion 1021 is flush with the hole edge of one end of the mounting hole 1031 facing away from the fitting portion 1021, the mounting portion 1022 is welded to the connecting piece 103, and more specifically, two ends of each of the mounting portions 1022 are respectively welded to the two end hole edges of the corresponding mounting hole 1031.
In the second embodiment of the present utility model, to enable each of the mounting portions 1022 to be connected to the connecting piece 103, the mounting hole 1031 is a blind hole, each of the mounting portions 1022 has an external thread, each of the mounting holes 1031 has an internal thread, and each of the mounting portions 1022 is screwed to the corresponding mounting hole 1031; in addition, in order to further fix the mounting portions 1022 to the mounting holes 1031, a screw thread surface of each of the mounting portions 1022 is coated with a screw thread paste.
In the first embodiment and the second embodiment, when the connector 103 or the anti-rotation member 102 is damaged and needs to be replaced, the mounting portion 1022 and the connector 103 are difficult to be detached, and the replacement cost is high.
In view of this, in the third embodiment of the present utility model, the mounting holes 1031 are blind holes, each mounting hole 1031 has an internal thread, as shown in fig. 7, an end of each mounting hole 1031 facing away from the connecting portion 1041 has a notch 1032, each mounting portion 1022 has an external thread, the anti-rotation member 102 further includes two nuts 1023, each nut 1023 is disposed in each notch 1032, each mounting portion 1022 is screwed with the corresponding mounting hole 1031, when the mounting portion 1022 is screwed with the mounting hole 1031, each nut 1023 is screwed with the corresponding mounting portion 1022, and the nuts 1023 abut against the wall of the corresponding notch 1032, that is, the nuts 1023 are screwed with the mounting portions 1022 and compress the wall of the notch 1032, so as to prevent the mounting portion 1022 from loosening with the mounting hole 1031. In the third embodiment, when the connector 103 or the rotation preventing member 102 is damaged and needs to be replaced, the damaged member can be replaced by only removing the nut 1023 and the mounting part 1022 in order.
Further, in any embodiment of the present utility model, as shown in fig. 4, the end of the moving member 104 having the connecting portion 1041 further has two supporting surfaces 1042 arranged at intervals, the distance from the supporting surface 1042 to the end surface of the connecting portion 1041 facing away from the end of the three-jaw chuck body is equal to the height of the connecting member 103, and in addition, the end surface of the clamped gear abuts against the supporting surface 1042; in addition, the moving member 104 has a plurality of stepped holes 1043, where one stepped hole 1043 is located between two supporting surfaces 1042, and space and conditions are provided for placing other parts of the chuck by providing the stepped hole 1043; in addition, as shown in fig. 8, one end of the moving member 104, which is close to the three-jaw chuck body, is provided with two tooth grooves 1044 arranged at intervals, and the tooth grooves 1044 are in screw transmission connection with one surface of the wire chuck.
In summary, the clamp for clamping gears according to the embodiments of the present utility model is illustrated, which provides the advantage that the gears will not rotate circumferentially after clamping for the clamp for clamping gears.
It should be noted that in the embodiment of the utility model, the clamp for clamping the gear has a simple structure, does not involve complex manufacturing process and expensive materials, and has higher economy. Meanwhile, for manufacturers, the clamp for clamping the gears is easy to produce, low in cost, beneficial to control of production cost and further beneficial to product popularization and use.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.
Claims (10)
1. A anchor clamps for clamping gear, includes a three-jaw chuck disk body, its characterized in that: the clamp for clamping the gear further comprises
The claw assembly is used for clamping the gear, each claw assembly is arranged on the three-jaw chuck body in a sliding mode, each claw assembly comprises a contact part and a plurality of anti-rotation pieces, each anti-rotation piece is connected with the contact part, when the claw assembly clamps the gear, the contact part is attached to the tooth top cylindrical surface of the gear, and each anti-rotation piece is arranged in a corresponding tooth slot of the gear and attached to the slot surface of the tooth slot.
2. The clamp for clamping a gear as claimed in claim 1, wherein: each jaw assembly comprises a connecting piece and a moving piece, the moving piece is arranged on the three-jaw chuck body in a sliding mode, one end, deviating from the three-jaw chuck body, of the moving piece is provided with a connecting portion, one face of the connecting piece is connected with the connecting portion, the other face of the connecting piece is the contact portion, and the connecting piece is located between the gear and the connecting portion.
3. The clamp for clamping a gear as claimed in claim 2, wherein: the connecting piece is provided with a plurality of containing hole combinations, each containing hole combination comprises two mounting holes which are arranged at intervals, the two mounting holes are respectively positioned at two sides of the connecting piece, the containing hole combinations correspond to the anti-rotation pieces one by one, each anti-rotation piece comprises a jogged part and two mounting parts, the jogged parts are respectively positioned between the two mounting parts, the two mounting parts respectively extend into the corresponding two mounting holes, and each mounting part is connected with the connecting piece.
4. A clamp for clamping a gear as claimed in claim 3, wherein: the mounting holes are through holes, the maximum radial dimension of each mounting part is equal to the aperture of each mounting hole, and two ends of each mounting part are welded with two end holes of the corresponding mounting hole respectively.
5. A clamp for clamping a gear as claimed in claim 3, wherein: the mounting holes are blind holes, each mounting portion is provided with external threads, each mounting hole is provided with internal threads, and each mounting portion is in threaded connection with the corresponding mounting hole.
6. The clamp for clamping a gear as set forth in claim 5, wherein: the thread surface of each mounting part is coated with thread glue.
7. The clamp for clamping a gear as set forth in claim 5, wherein: each mounting hole deviates from the one end of connecting portion all has a breach, prevent changeing the piece still includes two nuts, each all be equipped with one in the breach the nut, each nut all with corresponding installation department threaded connection, just the nut with the wall of corresponding breach supports and leans on.
8. A clamp for clamping a gear as claimed in any one of claims 2 to 7, wherein: the moving part is provided with two supporting surfaces which are arranged at intervals at one end of the connecting part, and the distance from the supporting surfaces to the end surface of one end of the connecting part, which is away from the three-jaw chuck body, is equal to the height of the connecting part.
9. The clamp for clamping a gear of claim 8, wherein: the moving part is provided with a plurality of stepped holes, and one stepped hole is positioned between the two supporting surfaces.
10. The clamp for clamping a gear as claimed in claim 9, wherein: one end of the moving part, which is close to the three-jaw chuck body, is provided with tooth grooves which are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976827.0U CN219786836U (en) | 2023-04-24 | 2023-04-24 | Clamp for clamping gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976827.0U CN219786836U (en) | 2023-04-24 | 2023-04-24 | Clamp for clamping gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219786836U true CN219786836U (en) | 2023-10-03 |
Family
ID=88155765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976827.0U Active CN219786836U (en) | 2023-04-24 | 2023-04-24 | Clamp for clamping gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219786836U (en) |
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2023
- 2023-04-24 CN CN202320976827.0U patent/CN219786836U/en active Active
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