CN214684595U - Clamping tool for machining automobile gear - Google Patents
Clamping tool for machining automobile gear Download PDFInfo
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- CN214684595U CN214684595U CN202022941951.2U CN202022941951U CN214684595U CN 214684595 U CN214684595 U CN 214684595U CN 202022941951 U CN202022941951 U CN 202022941951U CN 214684595 U CN214684595 U CN 214684595U
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- 238000003754 machining Methods 0.000 title claims description 23
- 238000003825 pressing Methods 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model discloses a clamping tool for automobile gear processing, which comprises a mandrel, wherein the mandrel is provided with an installation section and is used for being inserted into an inner hole of a middle gear; a positioning sleeve is sleeved on the left side of the mounting section, and the right end of the positioning sleeve is a positioning surface and is used for being abutted and supported on the left end face of the intermediate gear; the right side of the mounting section is sleeved with a pressing sleeve, the right end of the pressing sleeve is a bearing end and is used for bearing the pressing force of an external device so that the pressing sleeve has the tendency of moving towards the middle gear, and the left end face of the pressing sleeve is supported on the right end face of the middle gear in an abutting mode; the mounting section is provided with a mounting hole on the outer end face, a plurality of mounting holes are distributed on the inner peripheral wall of the mounting hole in a circular array at positions corresponding to the intermediate gear, steel balls are arranged in the mounting holes, and a mounting cylinder is arranged between the mounting section and the intermediate gear. The utility model has the advantages of simple structure can conveniently accomplish the clamping more, can conveniently adjust dabber and gear axiality, can improve the clamping precision.
Description
Technical Field
The utility model belongs to the technical field of gear machining, concretely relates to clamping frock is used in automobile gear machining.
Background
The gear is one of the main transmission components of the automobile, and the gear structure of fig. 2 is an intermediate gear in the automobile gearbox. The precision of the transmission component is finally reflected on the whole assembly precision and the transmission precision, so the requirement on the machining precision of the intermediate gear is high.
The machining and manufacturing process of the intermediate gear comprises a gear shaving step, and when the intermediate gear is subjected to gear shaving, the intermediate gear is usually clamped and positioned in a corresponding clamp tool, and then the gear shaving is finished. In general, clamping accuracy affects final accuracy of a gear, and for a gear with high machining accuracy requirements, the clamping accuracy needs to be solved firstly. When the existing clamping tool clamps the intermediate gear, the intermediate gear is usually sleeved and matched on a positioning mandrel and then clamped. The coaxiality between the positioning mandrel and the gear is inconvenient to adjust in the clamping and positioning process, and the coaxiality between the positioning mandrel and the gear is low, so that the machining precision of the gear is reduced; and the tool with the existing structure is inconvenient to finish clamping operation.
Therefore, how to provide a simple structure can conveniently accomplish the clamping more, can conveniently adjust dabber and gear axiality, can improve the clamping frock for automobile gear machining of clamping precision, becomes the technical problem that technical personnel in the field remain to solve.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a simple structure can conveniently accomplish the clamping more, can conveniently adjust dabber and gear axiality, can improve the clamping frock for automobile gear machining of clamping precision.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a clamping tool for machining an automobile gear comprises a mandrel, wherein the mandrel is provided with a mounting section and is used for being inserted into an inner hole of an intermediate gear; a positioning sleeve is sleeved on the left side of the mounting section, and the right end of the positioning sleeve is a positioning surface and is used for being abutted and supported on the left end face of the intermediate gear; the right side of the mounting section is sleeved with a pressing sleeve, the right end of the pressing sleeve is a bearing end and is used for bearing the pressing force of an external device so that the pressing sleeve has the tendency of moving towards the middle gear, and the left end face of the pressing sleeve is supported on the right end face of the middle gear in an abutting mode; the mounting device is characterized in that a mounting hole is formed in the outer end face of the mounting section, a plurality of mounting holes are distributed in a circular array on the inner peripheral wall of the mounting hole and at positions corresponding to the intermediate gear, steel balls are arranged in the mounting holes, a mounting cylinder is arranged between the mounting section and the intermediate gear, and abdicating holes are formed in the mounting cylinder and respectively correspond to the steel balls; and a steel ball driving structure is arranged in the placing hole and can push the steel balls to move outwards in the mounting hole and the abdicating hole and abut against the inner peripheral wall of the intermediate gear.
Therefore, when the clamping tool for machining the automobile gear is used, the middle gear is sleeved on the installation section of the mandrel, and the left end face of the middle gear is abutted and supported on the right end face of the positioning sleeve; and the steel ball driving structure is adopted to push the steel balls to move outwards in the mounting hole and the abdicating hole and abut against the inner peripheral wall of the intermediate gear, so that the axis of the intermediate gear is better overlapped with the central line of the mandrel. And finally, applying pressure to the right end of the pressing sleeve by an external device, so that the pressing sleeve has a trend of moving towards the intermediate gear, and the left end face of the pressing sleeve is abutted and supported on the right end face of the intermediate gear and tightly presses the intermediate gear to finish clamping. The tool has the advantages of being simple in structure, capable of conveniently adjusting the coaxiality of the mandrel and the gear and capable of improving clamping precision.
Preferably, the steel ball driving structure comprises a push rod which is slidably arranged in the mounting hole; the push rod includes the drive section of front end, the whole toper structure that is the big setting of the little rear end diameter of front end diameter that is of drive section, the push rod still include the butt section of outer end, and the outer end butt setting of butt section is pressing the cover inboard, and presses the cover and can promote the push rod inward movement, and makes the steel ball slide from inner to outer end on the drive section outer peripheral face to promote the steel ball at the mounting hole and let the downthehole outside removal of position and butt on intermediate gear internal perisporium.
Like this, through setting up the push rod for when adopting the pressure cover to compress tightly, the pressure cover drives the push rod motion, makes things convenient for the clamping more, and whole clamping step is simpler. And the push rod drives the steel ball to move, so that the steel ball can be better abutted against the inner peripheral wall of the inner hole of the intermediate gear after moving.
Preferably, a threaded connection hole is formed in the outer end face of the driving section, a connection boss protruding forwards is arranged on the inner end face of the abutting section, and the connection boss is in threaded connection with the threaded connection hole.
Like this, because the drive section outer peripheral face is with steel ball roll fit, its back of using repeatedly, the precision can reduce, with drive section and butt section detachable connection, can conveniently change the drive section more.
Preferably, a spiral spring is arranged between the front end face of the driving section and the bottom face of the placement hole, and two ends of the spiral spring are respectively supported on the bottom face of the placement hole and the end face of the driving section in an abutting mode so that the driving section has a tendency of moving outwards.
Thus, the push rod compresses the spiral spring and moves inwards to drive the steel balls by arranging the spiral spring; after the middle gear is clamped and processed, when the middle gear is disassembled, the push rod can move outwards under the acting force of the spiral spring, and at the moment, the steel ball is free from the force of the push rod, so that the middle gear is more convenient to clamp next time.
Preferably, the number of the mounting holes is 4, and the mounting holes are distributed in a circular array.
Thus, the structure is simpler, and the design is more reasonable.
Preferably, the pressing sleeve is of a cylindrical structure integrally, the pressing sleeve comprises a circular plate-shaped component at the right end, and a tapered hole is formed in the outer side face of the circular plate-shaped component.
Therefore, the structure of the pressing sleeve is simpler, and the external device can apply clamping force to the pressing sleeve more conveniently.
Preferably, the pressing sleeve further comprises a cylindrical member at the left end, and the inner diameter of the cylindrical member is matched with the diameter of the right end of the mandrel.
Therefore, the pressing sleeve is simpler in structure and more reasonable in design.
Preferably, the right end of the cylindrical member is provided with a through hole.
Thus, the position of the mandrel can be observed more conveniently.
Preferably, the diameter of the mounting cylinder is smaller than the inner diameter of the intermediate gear.
Thus, the use is more convenient.
As optimization, the outer end of the mounting hole is small in diameter, and the inner end of the mounting hole is large in diameter; the diameter of the outer end of the mounting hole is smaller than that of the steel ball.
Like this, the design is more reasonable, can avoid the steel ball roll-off better.
Drawings
Fig. 1 is the utility model discloses among the specific embodiment the structural schematic diagram of clamping frock is used in automobile gear processing.
Fig. 2 is a schematic structural view of the intermediate gear in fig. 1.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to fig. 1 and 2: a clamping tool for machining an automobile gear comprises a mandrel 1, wherein a mounting section 2 is arranged on the mandrel and is used for being inserted into an inner hole of an intermediate gear 3; a positioning sleeve 4 is sleeved on the left side of the mounting section, and the right end of the positioning sleeve is a positioning surface and is used for being abutted and supported on the left end face of the intermediate gear; the right side of the mounting section is sleeved with a pressing sleeve 5, the right end of the pressing sleeve is a bearing end and is used for bearing the pressing force of an external device so that the pressing sleeve has the tendency of moving towards the middle gear, and the left end face of the pressing sleeve is supported on the right end face of the middle gear in an abutting mode; the outer end face of the mounting section is provided with a mounting hole 6, a plurality of mounting holes are distributed on the inner peripheral wall of the mounting hole in a circular array at positions corresponding to the intermediate gear, steel balls 7 are arranged in the mounting holes, a mounting cylinder 8 is arranged between the mounting section and the intermediate gear, and abdicating holes are respectively arranged on the mounting cylinders corresponding to the steel balls; and a steel ball driving structure is arranged in the placing hole and can push the steel balls to move outwards in the mounting hole and the abdicating hole and abut against the inner peripheral wall of the intermediate gear.
Therefore, when the clamping tool for machining the automobile gear is used, the middle gear is sleeved on the installation section of the mandrel, and the left end face of the middle gear is abutted and supported on the right end face of the positioning sleeve; and the steel ball driving structure is adopted to push the steel balls to move outwards in the mounting hole and the abdicating hole and abut against the inner peripheral wall of the intermediate gear, so that the axis of the intermediate gear is better overlapped with the central line of the mandrel. And finally, applying pressure to the right end of the pressing sleeve by an external device, so that the pressing sleeve has a trend of moving towards the intermediate gear, and the left end face of the pressing sleeve is abutted and supported on the right end face of the intermediate gear and tightly presses the intermediate gear to finish clamping. The tool has the advantages of being simple in structure, capable of conveniently adjusting the coaxiality of the mandrel and the gear and capable of improving clamping precision.
In this embodiment, the steel ball driving structure comprises a push rod 9 slidably disposed in the mounting hole; the push rod includes the drive section 10 of front end, the whole toper structure that is the big setting of the little rear end diameter of front end diameter that is of drive section, the push rod still includes the butt section 11 of outer end, and the outer end butt setting of butt section is pressing the cover inboard, and presses the cover and can promote the push rod inward movement, and makes the steel ball slide from inner to outer end on the drive section outer peripheral face to promote the steel ball at the mounting hole and let the downthehole outside removal of position and butt on the internal perisporium of intermediate gear.
Like this, through setting up the push rod for when adopting the pressure cover to compress tightly, the pressure cover drives the push rod motion, makes things convenient for the clamping more, and whole clamping step is simpler. And the push rod drives the steel ball to move, so that the steel ball can be better abutted against the inner peripheral wall of the inner hole of the intermediate gear after moving.
In this embodiment, a threaded connection hole is formed on the outer end surface of the driving section 10, a connection boss 12 protruding forward is formed on the inner end surface of the abutting section, and the connection boss is in threaded connection with the threaded connection hole.
Like this, because the drive section outer peripheral face is with steel ball roll fit, its back of using repeatedly, the precision can reduce, with drive section and butt section detachable connection, can conveniently change the drive section more.
In the embodiment, a spiral spring 13 is arranged between the front end face of the driving section and the bottom face of the placing hole, and two ends of the spiral spring are respectively supported on the bottom face of the placing hole and the end face of the driving section in an abutting mode so that the driving section has a tendency of moving outwards.
Thus, the push rod compresses the spiral spring and moves inwards to drive the steel balls by arranging the spiral spring; after the middle gear is clamped and processed, when the middle gear is disassembled, the push rod can move outwards under the acting force of the spiral spring, and at the moment, the steel ball is free from the force of the push rod, so that the middle gear is more convenient to clamp next time.
In this embodiment, the number of the mounting holes is 4 that are distributed in a circular array.
Thus, the structure is simpler, and the design is more reasonable.
In this embodiment, the pressing sleeve is a cylindrical structure, and the pressing sleeve includes a circular plate-shaped member 14 at the right end, and a tapered hole is provided on the outer side surface of the circular plate-shaped member.
Therefore, the structure of the pressing sleeve is simpler, and the external device can apply clamping force to the pressing sleeve more conveniently.
In this embodiment, the pressing sleeve further includes a cylindrical member 15 at the left end, and the inner diameter of the cylindrical member is matched with the diameter of the right end of the mandrel.
Therefore, the pressing sleeve is simpler in structure and more reasonable in design.
In this embodiment, the right end of the cylindrical member is provided with a through hole.
Thus, the position of the mandrel can be observed more conveniently.
In this embodiment, the diameter of the mounting cylinder is set smaller than the inner diameter of the intermediate gear.
Thus, the use is more convenient.
In the specific embodiment, the outer end of the mounting hole has a small diameter and the inner end has a large diameter; the diameter of the outer end of the mounting hole is smaller than that of the steel ball.
Like this, the design is more reasonable, can avoid the steel ball roll-off better.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. A clamping tool for machining an automobile gear comprises a mandrel, wherein the mandrel is provided with a mounting section and is used for being inserted into an inner hole of an intermediate gear; a positioning sleeve is sleeved on the left side of the mounting section, and the right end of the positioning sleeve is a positioning surface and is used for being abutted and supported on the left end face of the intermediate gear; the right side of the mounting section is sleeved with a pressing sleeve, the right end of the pressing sleeve is a bearing end and is used for bearing the pressing force of an external device so that the pressing sleeve has the tendency of moving towards the middle gear, and the left end face of the pressing sleeve is supported on the right end face of the middle gear in an abutting mode; the mounting device is characterized in that a mounting hole is formed in the outer end face of the mounting section, a plurality of mounting holes are distributed in a circular array on the inner peripheral wall of the mounting hole and at positions corresponding to the intermediate gear, steel balls are arranged in the mounting holes, a mounting cylinder is arranged between the mounting section and the intermediate gear, and abdicating holes are formed in the mounting cylinder and respectively correspond to the steel balls; and a steel ball driving structure is arranged in the placing hole and can push the steel balls to move outwards in the mounting hole and the abdicating hole and abut against the inner peripheral wall of the intermediate gear.
2. The clamping tool for machining the automobile gear according to claim 1, wherein the clamping tool comprises: the steel ball driving structure comprises a push rod which is arranged in the mounting hole in a sliding manner; the push rod includes the drive section of front end, the whole toper structure that is the big setting of the little rear end diameter of front end diameter that is of drive section, the push rod still include the butt section of outer end, and the outer end butt setting of butt section is pressing the cover inboard, and presses the cover and can promote the push rod inward movement, and makes the steel ball slide from inner to outer end on the drive section outer peripheral face to promote the steel ball at the mounting hole and let the downthehole outside removal of position and butt on intermediate gear internal perisporium.
3. The clamping tool for machining the automobile gear according to claim 2, wherein the clamping tool comprises: the outer end face of the driving section is provided with a threaded connecting hole, the inner end face of the abutting section is provided with a connecting boss protruding forwards, and the connecting boss is in threaded connection with the threaded connecting hole.
4. The clamping tool for machining the automobile gear according to claim 2, wherein the clamping tool comprises: be equipped with coil spring between drive section preceding terminal surface and arrangement hole bottom surface, coil spring's both ends support respectively in the butt on arrangement hole bottom surface and drive section terminal surface so that the drive section has the trend of outside motion.
5. The clamping tool for machining the automobile gear according to claim 1, wherein the clamping tool comprises: the mounting holes are 4 which are distributed in a circular array.
6. The clamping tool for machining the automobile gear according to claim 1, wherein the clamping tool comprises: the whole pressing sleeve is of a barrel-shaped structure, the pressing sleeve comprises a circular plate-shaped component at the right end, and a tapered hole is formed in the outer side face of the circular plate-shaped component.
7. The clamping tool for machining the automobile gear according to claim 6, wherein the clamping tool comprises: the pressing sleeve further comprises a cylindrical member at the left end, and the inner diameter of the cylindrical member is matched with the diameter of the right end of the mandrel.
8. The clamping tool for machining the automobile gear according to claim 7, wherein the clamping tool comprises: the right end of the cylindrical member is provided with a through hole.
9. The clamping tool for machining the automobile gear according to claim 1, wherein the clamping tool comprises: the diameter of the mounting cylinder is smaller than the inner diameter of the intermediate gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941951.2U CN214684595U (en) | 2020-12-10 | 2020-12-10 | Clamping tool for machining automobile gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941951.2U CN214684595U (en) | 2020-12-10 | 2020-12-10 | Clamping tool for machining automobile gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214684595U true CN214684595U (en) | 2021-11-12 |
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ID=78557374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022941951.2U Expired - Fee Related CN214684595U (en) | 2020-12-10 | 2020-12-10 | Clamping tool for machining automobile gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214684595U (en) |
-
2020
- 2020-12-10 CN CN202022941951.2U patent/CN214684595U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211221 Address after: 401420 Chongqing Qijiang District Sanjiang street Changle village two roads Patentee after: CHONGQING HONGJIE INDUSTRIAL Co.,Ltd. Address before: 401420 Chongqing Qijiang District Sanjiang street Changle village two roads Patentee before: Chongqing Qian Jin Auto Parts Manufacturing Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |