CN216325626U - Expansion sleeve of gear grinding tool and gear grinding tool - Google Patents
Expansion sleeve of gear grinding tool and gear grinding tool Download PDFInfo
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- CN216325626U CN216325626U CN202122499658.XU CN202122499658U CN216325626U CN 216325626 U CN216325626 U CN 216325626U CN 202122499658 U CN202122499658 U CN 202122499658U CN 216325626 U CN216325626 U CN 216325626U
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- gear
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- expansion sleeve
- gear grinding
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Abstract
The utility model discloses an expansion sleeve of a gear grinding tool, which comprises an expansion sleeve body, wherein the expansion sleeve body is arranged on the gear grinding tool, a gear workpiece is sleeved on the outer side of the expansion sleeve body, the expansion sleeve body comprises an expansion part, connecting parts connected to two ends of the expansion part and a compression part connected to the connecting parts, the left end surface of the expansion part is attached to the inner wall of the gear workpiece, a gap is formed between the right end surface and the gear grinding tool, the compression part is attached between the gear workpiece and the gear grinding tool, the compression part is pressed by the gear grinding tool to enable pressure to be transmitted to the expansion part through the connecting parts, and the expansion part elastically deforms outwards to expand the gear workpiece. The utility model discloses a gear grinding tool, which comprises a shell, wherein a positioning core shaft and a pull rod are arranged on the shell, and the positioning core shaft is sleeved with an expansion sleeve.
Description
Technical Field
The utility model relates to the field of expansion sleeves, in particular to an expansion sleeve of a gear grinding tool and the gear grinding tool.
Background
The process of grinding the teeth of a gear using a gear grinding machine is called gear grinding. The existing gear grinding machine generally expands the gear through an expansion sleeve of a hydraulic tool clamp, the existing expansion sleeve has poor expansion effect on a workpiece, and the gear grinding machine can possibly cause the looseness of the gear workpiece in gear grinding processing and cannot meet the use requirement.
Disclosure of Invention
The utility model mainly solves the technical problem of providing the expansion sleeve of the gear grinding tool and the gear grinding tool, which can ensure that the expansion sleeve effectively expands a workpiece, and have the advantages of simple structure, good use effect, safety and reliability.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a tight cover that expands of gerar grinding frock, including the tight cover body that expands, the tight cover body that expands is installed on the gerar grinding frock, the outside cover of the tight cover that expands is equipped with gear workpiece, the tight cover body that expands is including tight portion, the connection of the connecting portion at tight portion both ends that expand and the compression portion of connection on connecting portion, the left end face laminating of tight portion that expands forms the clearance on gear workpiece's inner wall, between right-hand member face and the gerar grinding frock, compression portion pastes and establishes between gear workpiece and gerar grinding frock, the gerar grinding frock is pressed down the compression portion and is made pressure pass through connecting portion transmission to tight portion that expands, the outside elastic deformation of tight portion that expands in order to expand gear workpiece.
In a preferred embodiment of the utility model, the left end face of the pressure receiving part is attached to the gear workpiece, and the right end face and the top end face are attached to the gear grinding tool.
In a preferred embodiment of the utility model, a first groove is formed between the compression part and the expansion part, the first groove is positioned on the left side of the connecting part, and the connecting part forms a gap with the gear workpiece through the first groove.
In a preferred embodiment of the utility model, a second groove is formed between the two connecting parts, the second groove is positioned at the right side of the expansion part, and the expansion part forms a gap with the gear workpiece through the second groove.
In a preferred embodiment of the present invention, the first groove and the second groove are annular grooves formed along a circumferential direction of the expansion sleeve body.
In a preferred embodiment of the present invention, the depth of the first groove is greater than that of the second groove, and the width of the second groove is greater than that of the first groove.
In a preferred embodiment of the utility model, the cross section of the expansion sleeve body is in a bow shape.
In a preferred embodiment of the utility model, the expansion sleeve body is a high-elasticity thin-wall expansion sleeve made of metal.
In order to solve the technical problem, the utility model adopts another technical scheme that: the utility model provides a gear grinding tool, which comprises an outer shell, install on the shell and be equipped with positioning core axle and pull rod the last cover of positioning core axle is equipped with the above-mentioned tight cover that expands, the left end face and the gear workpiece laminating of the pressure part of the upper end of the tight cover body that expands, the outer wall laminating of right-hand member face and positioning core axle, the pressure head laminating of top face and pull rod, the left end face and the gear workpiece laminating of the pressure part of the lower extreme of the tight cover that expands, the outer wall laminating of right-hand member face and top face and positioning core axle, connecting portion and positioning core axle's outer wall laminating, the pull rod makes the pressure head push down the pressure part of the upper end of the tight cover that expands, and the pressure part of the tight end that expands is supported by the positioning core axle to transmit pressure to the tight portion that expands through the connecting portion, the outside elastic deformation of tight portion that expands is in order to expand gear workpiece.
The utility model has the beneficial effects that: the expansion sleeve of the gear grinding tool and the gear grinding tool can ensure that the expansion sleeve can effectively expand a workpiece, and have the advantages of simple structure, good use effect, safety and reliability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a preferred embodiment of a gear grinding tool according to the present invention;
FIG. 2 is a partial cross-sectional view of FIG. 1;
the parts in the drawings are numbered as follows: 1. the gear wheel comprises a shell, 2, a positioning mandrel, 3, an expansion sleeve, 301, an expansion part, 302, a connecting part, 303, a compression part, 304, a first groove, 305, a second groove, 4, a gear workpiece, 7, a pull rod, 701 and a pressure head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, an expansion sleeve of a gear grinding tool comprises an expansion sleeve body, the expansion sleeve body is mounted on the gear grinding tool, a gear workpiece 4 is sleeved outside the expansion sleeve body, the expansion sleeve body comprises an expansion portion 301, a connecting portion 302 connected to two ends of the expansion portion 301 and a compression portion 303 connected to the connecting portion 302, a left end face of the expansion portion 301 is attached to an inner wall of the gear workpiece 4, a gap is formed between a right end face and the gear grinding tool, the compression portion 303 is attached between the gear workpiece 4 and the gear grinding tool, the compression portion 303 is pressed by the gear grinding tool, so that pressure is transmitted to the expansion portion 301 through the connecting portion 302, and the expansion portion 301 is elastically deformed outwards to expand the gear workpiece 4.
The left end surface of the pressure receiving portion 303 is bonded to the gear workpiece 4, and the right end surface and the tip end surface are bonded to the gear grinding tool.
In addition, a first concave groove 304 is formed between the pressure receiving portion 303 and the expansion portion 301, the first concave groove 304 is located on the left side of the connecting portion 302, and the connecting portion 302 passes through the first concave groove 304 to form a gap with the gear workpiece 4.
In addition, a second groove 305 is formed between the two connecting portions 302, the second groove 305 is located on the right side of the expansion portion 301, and the expansion portion 301 forms a gap with the gear workpiece 4 through the second groove 305.
In addition, the first groove 304 and the second groove 305 are annular grooves that are opened in the circumferential direction of the expansion sleeve body.
In addition, the depth of the first groove 304 is larger than that of the second groove 305, and the width of the second groove 305 is larger than that of the first groove 304.
In addition, the cross section of the expansion sleeve body is in a bow shape.
In addition, the expansion sleeve body is a high-elasticity thin-wall expansion sleeve made of metal. The friction force of the metal material is larger, and the structure of the high-elasticity thin wall is easier to be pressed and expanded.
A gear grinding tool comprises a shell, a positioning mandrel 2 and a pull rod 7 are installed on the shell 1, the positioning mandrel 2 is sleeved with an expansion sleeve 3, the left end face of a pressed part 302 at the upper end of an expansion sleeve body is attached to a gear workpiece 4, the right end face of the compression sleeve body is attached to the outer wall of the positioning mandrel 2, the top end face of the expansion sleeve body is attached to a pressure head 701 of the pull rod 7, the left end face of the pressed part 302 at the lower end of the expansion sleeve body is attached to the gear workpiece 4, the right end face and the top end face of the compression sleeve body are attached to the outer wall of the positioning mandrel 2, a connecting part 302 is attached to the outer wall of the positioning mandrel 2, the pull rod 7 moves downwards to enable the pressure head 701 to press down the pressed part 303 at the upper end, the pressed part 303 at the lower end is abutted to the positioning mandrel 2, so that the 302 pressure is transmitted to the expansion part 301 through the connecting part, the expansion part 301 elastically deforms outwards to expand the gear workpiece 4, the pull rod 7 is connected with a piston rod through a connecting rod, a hydraulic oil circuit is arranged in the shell 1 to drive the piston rod to move downwards, the moving manner of the piston rod is not limited to the hydraulic type, and the piston rod may be driven by another mechanical structure. The tight cover expands bears the pressure of vertical direction through two pressure portions 303, turns into the pressure transmission of horizontal direction for tight portion 301 that expands with pressure through connecting portion 302, and tight portion 301 that expands props gear workpiece 4's hole through its left end face after the compressive deformation, reaches fine tight effect that expands, has avoided gear workpiece not hard up.
Compared with the prior art, the expansion sleeve of the gear grinding tool and the gear grinding tool can ensure that the expansion sleeve effectively expands a workpiece, and are simple in structure, good in using effect, safe and reliable.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a tight cover that expands of gear grinding frock, is including the tight cover body that expands, the tight cover body that expands is installed on gear grinding frock, the outside cover of the tight cover that expands is equipped with gear workpiece, a serial communication port, the tight cover body that expands is including the tight portion of expanding, connect the connecting portion at the tight portion both ends that expand and connect the compression portion on connecting portion, the left end face laminating of the tight portion that expands forms the clearance on gear workpiece's inner wall, between right-hand member face and the gear grinding frock, the compression portion pastes and establishes between gear workpiece and gear grinding frock, gear grinding frock is pressed down the compression portion and is made pressure pass through connecting portion transmission to the tight portion that expands, the tight outside elastic deformation of the tight portion that expands in order to expand gear workpiece.
2. The expansion sleeve of the gear grinding tool according to claim 1, wherein the left end face of the compression part is attached to a gear workpiece, and the right end face and the top end face are attached to the gear grinding tool.
3. The expansion sleeve of the gear grinding tool according to claim 2, wherein a first groove is formed between the compression part and the expansion part, the first groove is located on the left side of the connecting part, and a gap is formed between the connecting part and the gear workpiece through the first groove.
4. The expansion sleeve of the gear grinding tool according to claim 3, wherein a second groove is formed between the two connecting portions, the second groove is located on the right side of the expansion portion, and a gap is formed between the expansion portion and the gear workpiece through the second groove.
5. The expansion sleeve of the gear grinding tool according to claim 4, wherein the first groove and the second groove are annular grooves formed in the circumferential direction of the expansion sleeve body.
6. The expansion sleeve of the gear grinding tool according to claim 5, wherein the depth of the first groove is larger than that of the second groove, and the width of the second groove is larger than that of the first groove.
7. The expansion sleeve of the gear grinding tool according to any one of claims 1 to 6, wherein the cross section of the expansion sleeve body is in a bow shape.
8. The expansion sleeve of the gear grinding tool according to claim 7, wherein the expansion sleeve body is a high-elasticity thin-wall expansion sleeve made of metal.
9. The utility model provides a gear grinding tool, includes the shell, install on the shell and be equipped with positioning core axle and pull rod, its characterized in that, the last cover of positioning core axle is equipped with including any of claims 1-8 the tight cover expands, the left end face and the gear workpiece laminating of the pressure part of the upper end of the tight cover body that expands, the outer wall laminating of right-hand member and positioning core axle, the pressure head laminating of top face and pull rod, the left end face and the gear workpiece laminating of the pressure part of the lower extreme of the tight cover that expands, the outer wall laminating of right-hand member and top face and positioning core axle, connecting portion and positioning core axle's outer wall laminating, the pull rod makes the pressure head push down the pressure part of the upper end of the tight cover that expands, and the pressure part of the upper end of the tight cover that expands is supported by the positioning core axle to transmit pressure to the tight portion that expands through the connecting portion, the outside elastic deformation of the tight portion that expands is in order to expand the tight gear workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122499658.XU CN216325626U (en) | 2021-10-18 | 2021-10-18 | Expansion sleeve of gear grinding tool and gear grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122499658.XU CN216325626U (en) | 2021-10-18 | 2021-10-18 | Expansion sleeve of gear grinding tool and gear grinding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216325626U true CN216325626U (en) | 2022-04-19 |
Family
ID=81177844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122499658.XU Active CN216325626U (en) | 2021-10-18 | 2021-10-18 | Expansion sleeve of gear grinding tool and gear grinding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216325626U (en) |
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2021
- 2021-10-18 CN CN202122499658.XU patent/CN216325626U/en active Active
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