CN214921127U - Fixing clamp with internal spline for grinding input gear - Google Patents
Fixing clamp with internal spline for grinding input gear Download PDFInfo
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- CN214921127U CN214921127U CN202121268179.0U CN202121268179U CN214921127U CN 214921127 U CN214921127 U CN 214921127U CN 202121268179 U CN202121268179 U CN 202121268179U CN 214921127 U CN214921127 U CN 214921127U
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- input gear
- left end
- side wall
- main shaft
- hole
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Abstract
The utility model discloses a fixed clamp for gear grinding of an input gear with an internal spline, which comprises a rotating main shaft, wherein a middle stepped splicing hole is formed in the middle of the left end of the rotating main shaft, an outer sleeve is clamped on the middle outer side wall of the rotating main shaft, a limit nut is screwed on the middle outer side wall of the rotating main shaft, and the right end of the outer sleeve is pressed on the end surface of the limit nut; the right sleeve body of the input gear to be processed is clamped in the large-diameter hole section at the left end of the middle step insertion hole; it can be with having the bellied input gear centre gripping of internal spline fixed processing, and its machining precision is high, and is effectual.
Description
The technical field is as follows:
the utility model relates to a gearbox spare part makes technical field, and more specifically says and relates to a mounting fixture for gear grinding of input gear with internal spline.
Background art:
when an input gear in an existing gearbox is ground, the middle part of the input gear is generally provided with a central through hole, when the input gear is machined and clamped, a positioning conical wall surface is formed on the inner side wall of the left end of the central through hole, so that the outer side wall of the right end of a positioning thimble during machining can be pressed against the positioning conical wall surface conveniently, meanwhile, a bearing connecting part at the right end of the positioning thimble is clamped on a rotating main shaft, and the right end of the rotating main shaft is clamped on a rotating clamping part, so that the rotating main shaft can be rotated to grind the input gear, as shown in fig. 1;
when the inner side wall of the middle through hole of the input gear is formed with an inner spline protrusion, the clamping positioning reference is the central axis of the inner spline protrusion, at the moment, when the existing clamping fixture is clamped and fixed, the left end of the input gear needs to be pressed on the left end face of the inner spline protrusion by the outer side wall of the positioning thimble for positioning, and due to heat treatment deformation in the processing process of the inner spline protrusion, the processing precision is low, the central axis of the positioning thimble pressed on the left end face of the inner spline protrusion at the moment can not be ensured to be consistent with the central axis of the inner spline protrusion, so that the subsequent processing precision is influenced.
The utility model has the following contents:
the utility model aims at overcoming prior art's is not enough, provides a mounting fixture for gear grinding of input gear with internal spline, and it can be fixed with the bellied input gear centre gripping of internal spline and process, and its machining precision is high, and is effectual.
The utility model provides a technical problem's scheme is:
a fixing clamp for grinding teeth of an input gear with an internal spline comprises a rotating main shaft, wherein a middle stepped splicing hole is formed in the middle of the left end of the rotating main shaft, an outer sleeve is clamped on the outer side wall of the middle of the rotating main shaft, a limiting nut is screwed on the outer side wall of the middle of the rotating main shaft, and the right end of the outer sleeve is pressed against the end face of the limiting nut;
the right sleeve body of the input gear to be processed is clamped in the large-diameter hole section at the left end of the middle step insertion hole;
the middle part shaping of input gear has first through-hole, first through-hole communicates with each other with the right-hand member cover body, the location axle plug bush is in first through-hole, the middle part through-hole of the right-hand member cover body and the right-hand member minor diameter hole section of middle ladder spliced eye, the left end of location axle stretches out the left end of input gear, the right-hand member face pressure of location axle is on the right-hand member terminal surface of the right-hand member minor diameter hole section of middle ladder spliced eye, the inside wall of the right-hand member minor diameter hole section of middle ladder spliced eye is hugged closely to the right-hand member lateral wall of location axle.
The middle part of the left end of the positioning shaft is provided with a left end positioning hole.
The inner side wall of the first through hole is formed with an inner spline protrusion.
And a middle hole extending rightwards is formed in the middle of the right end face of the right small-diameter hole section of the middle step inserting hole.
A plurality of side groove bodies are formed on the side wall of the large-diameter hole section at the left end of the middle step inserting hole, and the left ends of the side groove bodies extend out of the left end face of the rotating main shaft.
An outward extending oblique wall surface portion is formed on the outer side wall of the left end of the rotating main shaft, an inward oblique wall surface extending in an inward oblique mode is formed on the inner side wall of the left end of the outer sleeve, and the oblique wall surface portion is pressed against the inward oblique wall surface.
An extension annular part is formed on the inner side wall of the right part of the outer sleeve, and the inner wall surface of the extension annular part is tightly attached to the outer side wall of the rotating main shaft.
The left end inside wall of the left end major diameter hole section of middle ladder spliced eye shaping has interior bulge, and the wall of interior bulge presses on the lateral wall of the right-hand member cover body of input gear, and the right-hand member face limit portion of input gear presses on the left end face of rotating spindle.
The utility model discloses an outstanding effect is:
the positioning shaft is inserted into the input gear and the right-end sleeve body, the left end of the positioning shaft is formed into a left-end positioning hole, the right end face of the positioning shaft is pressed against the right end face of the right-end small-diameter hole section of the middle step insertion hole, positioning of the positioning shaft and the rotating main shaft is achieved, the central axis of the positioning shaft is enabled to coincide with the central axis of the rotating main shaft, the outer side wall of the right-end sleeve body is pressed against the inner side wall of the left-end large-diameter hole section of the rotating main shaft, the right end face edge of the input gear is pressed against the left end face of the rotating main shaft, and therefore the central axis of the input gear is enabled to coincide with the central axis of the rotating main shaft.
Description of the drawings:
fig. 1 is a schematic structural view illustrating a conventional clamping apparatus of the present invention clamping an input gear having a central through hole;
FIG. 2 is a schematic view of a portion of the present invention clamping an input gear having an internal spline protrusion;
fig. 3 is a schematic view of a partial structure of the rotating spindle of the present invention.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 2 to 3, a fixing clamp for grinding teeth of an input gear with an internal spline comprises a rotating main shaft 10, wherein a middle stepped plug hole 11 is formed in the middle of the left end of the rotating main shaft 10, an outer sleeve 20 is clamped on the outer side wall of the middle of the rotating main shaft 11, a limit nut 12 is screwed on the outer side wall of the middle of the rotating main shaft 10, and the right end of the outer sleeve 20 is pressed against the end surface of the limit nut 12;
a right sleeve body 101 of the input gear 100 to be processed is clamped in the left large-diameter hole section of the middle stepped splicing hole 11;
a first through hole 102 is formed in the middle of the input gear 100, the first through hole 102 is communicated with the right end sleeve body 101, the positioning shaft 30 is inserted in the middle through holes of the first through hole 102 and the right end sleeve body 101 and the right end small-diameter hole section of the middle step insertion hole 11, the left end of the positioning shaft 30 extends out of the left end of the input gear 100, the right end face of the positioning shaft 30 is pressed against the right end face of the right end small-diameter hole section of the middle step insertion hole 11, and the outer side wall of the right end of the positioning shaft 30 is tightly attached to the inner side wall of the right end small-diameter hole section of the middle step insertion hole 11.
Further, the left end of the positioning shaft 30 has a left end positioning hole 31 in the middle.
Further, an inner spline protrusion is formed on an inner side wall of the first through hole 102.
Further, a middle hole extending rightward is formed in the middle of the right end face of the small-diameter hole section at the right end of the middle stepped splicing hole 11.
Furthermore, a plurality of side groove bodies 13 are formed on the side wall of the large-diameter hole section at the left end of the middle stepped plug hole 11, and the left end of each side groove body 13 extends out of the left end face of the rotating main shaft 10.
Further, the outer side wall of the left end of the rotating spindle 10 is formed with an outward extending oblique wall surface portion 14, the inner side wall of the left end of the outer sleeve 20 is formed with an inward extending oblique wall surface 21, and the oblique wall surface portion 14 is pressed against the inward oblique wall surface 21.
Further, an extension annular portion 22 is formed on the inner side wall of the right portion of the outer sleeve 20, and the inner wall surface of the extension annular portion 22 is tightly attached to the middle outer side wall of the rotating main shaft 10.
Further, an inner protrusion 111 is formed on the inner side wall of the left end of the large diameter hole section at the left end of the middle stepped insertion hole 11, the wall surface of the inner protrusion 111 is pressed against the outer side wall of the right end sleeve body 101 of the input gear 100, and the edge portion of the right end surface of the input gear 100 is pressed against the left end surface of the rotary main shaft 10. A right positioning hole is formed in the middle of the right end of the rotating main shaft 10.
In the present embodiment, during assembly, the right end of the rotating spindle 10 is clamped on the rotating mechanism of the main machine of the machine tool, then the right end sleeve body 101 of the input gear 100 is inserted into the left end large diameter hole section of the middle stepped insertion hole 11, because the left end large diameter hole section of the middle stepped insertion hole 11 is provided with the plurality of side groove bodies 13, during the insertion process of the right end sleeve body 101, the outer side wall of the left end large diameter hole section of the middle stepped insertion hole 11 is deformed along with the insertion of the right end sleeve body 101 until the right end face edge part of the input gear 100 is pressed against the left end face of the rotating spindle 10 to complete fixation, the wall surface of the inner protrusion 111 at this time is pressed against the outer side wall of the right end sleeve body 101 of the input gear 100 to achieve positioning, then the limit nut 12 is rotated to move the outer sleeve 20 to the left, so that the inner oblique wall surface 21 of the outer sleeve 20 is pressed against the oblique wall surface part 14 of the left end outer side wall of the rotating spindle 10, the wall surface of the inner protrusion 111 of the left large diameter hole section of the middle stepped insertion hole 11 is ensured to be pressed against the outer side wall of the right end sleeve body 101 of the input gear 100, so that the input gear is fixed.
Then, the positioning shaft 30 is inserted into the first through hole 102, the middle through hole of the right sleeve body 101 and the right small-diameter hole section of the right small-diameter hole of the middle stepped insertion hole 11, the left end of the positioning shaft 30 extends out of the left end of the input gear 100, the right end face of the positioning shaft 30 is pressed against the right end face of the right small-diameter hole section of the middle stepped insertion hole 11, the outer side wall of the right end of the positioning shaft 30 is tightly attached to the inner side wall of the right small-diameter hole section of the middle stepped insertion hole 11, the positioning thimble of the machine tool is inserted into the left positioning hole 31 of the left end of the positioning shaft 30, the installation of the positioning shaft is completed, and then, the input gear 100 can normally rotate through the rotating operation of the rotating mechanism, and the gear grinding processing can be carried out.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (8)
1. A fixing jig for grinding teeth of an input gear having an internal spline, comprising a rotary spindle (10), characterized in that: a middle step insertion hole (11) is formed in the middle of the left end of the rotating main shaft (10), an outer sleeve (20) is clamped on the outer side wall of the middle of the rotating main shaft (10), a limiting nut (12) is screwed on the outer side wall of the middle of the rotating main shaft (10), and the right end of the outer sleeve (20) is pressed against the end face of the limiting nut (12);
a right sleeve body (101) of the input gear (100) to be processed is clamped in the large-diameter hole section at the left end of the middle step insertion hole (11);
the middle part shaping of input gear (100) has first through-hole (102), first through-hole (102) communicate with each other with the right-hand member cover body (101), the left end that input gear (100) were stretched out to the left end of location axle (30) plug bush in first through-hole (102), the middle part through-hole of the right-hand member cover body (101) and the right-hand member minor diameter hole section of middle ladder spliced eye (11), the right-hand member face pressure of location axle (30) is leaned on the right-hand member minor diameter hole section's of middle ladder spliced eye (11) right-hand member minor diameter hole section's on the right-hand member terminal surface, the inside wall of the right-hand member minor diameter hole section of middle ladder spliced eye (11) is hugged closely to the right-hand member lateral wall of location axle (30).
2. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: the middle part of the left end of the positioning shaft (30) is provided with a left end positioning hole (31).
3. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: and an inner spline bulge is formed on the inner side wall of the first through hole (102).
4. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: and a middle hole extending rightwards is formed in the middle of the right end face of the right end small-diameter hole section of the middle step inserting hole (11).
5. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: a plurality of side groove bodies (13) are formed on the side wall of the large-diameter hole section at the left end of the middle step inserting hole (11), and the left end of each side groove body (13) extends out of the left end face of the rotating main shaft (10).
6. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: an outward extending oblique wall surface portion (14) is formed on the outer side wall of the left end of the rotating main shaft (10), an inward oblique wall surface (21) extending in an inward oblique mode is formed on the inner side wall of the left end of the outer sleeve (20), and the oblique wall surface portion (14) is pressed against the inward oblique wall surface (21).
7. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: an extension annular part (22) is formed on the inner side wall of the right part of the outer sleeve (20), and the inner wall surface of the extension annular part (22) is tightly attached to the outer side wall of the rotating main shaft (10).
8. A fixing jig for grinding teeth of an input gear having an internal spline according to claim 1, characterized in that: an inner convex portion (111) is formed on the inner side wall of the left end of the large-diameter hole section of the left end of the middle step inserting hole (11), the wall surface of the inner convex portion (111) is pressed against the outer side wall of the right end sleeve body (101) of the input gear (100), and the edge portion of the right end face of the input gear (100) is pressed against the left end face of the rotating main shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121268179.0U CN214921127U (en) | 2021-06-08 | 2021-06-08 | Fixing clamp with internal spline for grinding input gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121268179.0U CN214921127U (en) | 2021-06-08 | 2021-06-08 | Fixing clamp with internal spline for grinding input gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214921127U true CN214921127U (en) | 2021-11-30 |
Family
ID=79052425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121268179.0U Active CN214921127U (en) | 2021-06-08 | 2021-06-08 | Fixing clamp with internal spline for grinding input gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214921127U (en) |
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2021
- 2021-06-08 CN CN202121268179.0U patent/CN214921127U/en active Active
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