CN215146923U - Clamping device for machining external splines at end parts of gears - Google Patents
Clamping device for machining external splines at end parts of gears Download PDFInfo
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- CN215146923U CN215146923U CN202120919421.XU CN202120919421U CN215146923U CN 215146923 U CN215146923 U CN 215146923U CN 202120919421 U CN202120919421 U CN 202120919421U CN 215146923 U CN215146923 U CN 215146923U
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Abstract
The utility model discloses a clamping device for processing external splines at the end part of a gear, which comprises a base, wherein the lower end of the base is provided with a connecting structure and is used for being connected with a machine tool workbench; the base comprises a supporting seat at the upper end, a positioning mandrel is vertically and upwardly arranged on the upper surface of the supporting seat, the diameter of the positioning mandrel is matched with that of a positioning section of a central hole of an auxiliary box driving gear to be processed, the positioning mandrel can be vertically inserted into the positioning section of the central hole of the auxiliary box driving gear, a vertical limiting structure is further arranged on the supporting seat, and the vertical limiting structure is provided with a limiting surface and can be attached to and supported on the lower end surface of a transmission tooth section of the auxiliary box driving gear so as to limit the vertical downward position of the auxiliary box driving gear; and a tensioning sleeve is arranged above the positioning mandrel and comprises a tensioning cylinder which is vertically arranged at the lower end and is inserted into the upper section of the central hole of the auxiliary box driving gear. The utility model has the advantages of simple structure can conveniently accomplish the work piece clamping more and get the putting work piece.
Description
Technical Field
The utility model belongs to the technical field of the processing of axle tooth, concretely relates to gear end portion external splines processing clamping device.
Background
As shown in fig. 5, the auxiliary box driving gear comprises an external spline section, a transmission gear section, a mounting section and a butt joint section from top to bottom in sequence; the diameters of the external spline section, the transmission gear section, the mounting section and the butt joint section are sequentially reduced; and a abdicating groove is arranged between the external spline section and the transmission tooth section. The auxiliary box driving gear center hole sequentially comprises a center hole upper section, a center hole middle section, a center hole lower section and a center hole positioning section from top to bottom, the center hole upper section, the center hole middle section, the center hole lower section and the center hole positioning section are in one-to-one correspondence with the external spline section, the transmission tooth section, the mounting section and the butt joint end, and the diameters of the center hole upper section, the center hole middle section, the center hole lower section and the center hole positioning section are sequentially reduced.
In the processing and manufacturing of the auxiliary box driving gear with the structure, a blank is obtained by casting, and the rest structure is obtained by machining. However, the existing clamping device has the following defects when the auxiliary box driving gear is clamped and the external spline is machined: 1, after the conventional clamping device clamps the auxiliary box driving gear each time, the cutter needs to be reset to better ensure the machining precision, so that the clamping is troublesome and labor-consuming, and the clamping time is wasted; 2, after the existing clamping device is used for clamping and processing, the workpiece taking operation is inconvenient, and the operation is troublesome and laborious; 3 during processing, the iron fillings that processing produced can not be fine thoroughly discharge, influence processingquality.
Therefore, how to provide a simple structure can accomplish the work piece clamping and get and put the work piece more conveniently, can make things convenient for the chip removal to improve processingquality's gear tip external splines processing clamping device more, becomes the technical problem that technical staff in the field awaited the solution.
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 work piece clamping and get and put the work piece more, can make things convenient for the chip removal more in order to improve processingquality's gear tip external splines processing clamping device.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a clamping device for machining external splines at the end part of a gear comprises a base, wherein the lower end of the base is provided with a connecting structure and is used for being connected with a machine tool workbench; the positioning core shaft can be vertically inserted into the positioning section of the center hole of the auxiliary box driving gear, and the supporting seat is also provided with a vertical limiting structure which is provided with a limiting surface and can be attached and supported on the lower end surface of the transmission tooth section of the auxiliary box driving gear so as to limit the vertical downward position of the auxiliary box driving gear; a tensioning sleeve is arranged above the positioning mandrel, and comprises a tensioning cylinder which is vertically arranged at the lower end and is inserted into the upper section of the central hole of the auxiliary box driving gear, and a circle of pressing plate which is of an annular structure and is formed by outward protrusion of the outer circumferential surface of the upper end of the tensioning cylinder; a plurality of expansion openings with upper end openings are uniformly distributed at the upper end of the tensioning sleeve in the wall thickness direction; the inner hole of the expansion sleeve comprises a conical hole with the upper end having a larger diameter and the lower end having a smaller diameter, an expansion block which is integrally in a frustum-shaped structure is arranged in the expansion sleeve, a plurality of strip-shaped expansion bulges which are vertically arranged are uniformly arranged on the expansion block, and a vertical abdicating groove is arranged on the inner peripheral wall of the conical hole so that the expansion block can vertically extend upwards into the expansion sleeve; and the lower end of the expansion block is provided with a tension connecting end and is used for being connected with a tension mechanism, the expansion block can horizontally rotate in the expansion cylinder and enable the expansion bulge to be staggered with the abdicating groove, the expansion block can vertically move downwards, the expansion sleeve is enabled to expand outwards, the expansion cylinder is enabled to expand outwards to be supported in the upper section of the center hole of the auxiliary box driving gear in a manner of being attached to the upper section of the center hole, and the lower surface of the pressing plate is correspondingly supported on the upper end face of the auxiliary box driving gear in a manner of being attached to the upper end face of the auxiliary box driving gear in a manner of being pressed tightly.
Therefore, when the clamping device for processing the external spline at the end part of the gear is used, the positioning mandrel is vertically inserted into the positioning section of the center hole of the auxiliary box driving gear, and the limiting surface of the vertical limiting structure is supported on the lower end surface of the transmission gear section of the auxiliary box driving gear in an attached mode so as to limit the vertical downward position of the auxiliary box driving gear. Then, the lower end of the expansion sleeve is inserted into the upper section of the center hole of the auxiliary box driving gear, the expansion block is vertically and upwardly inserted into the expansion sleeve, the expansion protrusion and the abdicating groove are respectively arranged right oppositely, and the expansion sleeve is horizontally rotated when being clamped, so that the expansion protrusion and the abdicating groove are arranged in a staggered manner. After that, the tension mechanism drives the expansion block to vertically move downwards, the outer side surface of the expansion bulge is matched with the conical hole, the expansion block moves downwards, so that the expansion sleeve expands outwards, the expansion cylinder expands outwards to be attached and supported in the upper section of the center hole of the auxiliary box driving gear, and the lower surface of the pressure plate is correspondingly attached and supported on the upper end face of the auxiliary box driving gear to compress the workpiece. After the machining is finished, the tension mechanism is loosened, the expansion block moves upwards, then the expansion sleeve is horizontally rotated, the expansion protrusion and the abdicating groove are respectively arranged oppositely, the expansion sleeve is taken down upwards, and then the workpiece is taken down. The structure has the advantages of simple structure and capability of more conveniently completing workpiece clamping and workpiece taking and placing.
As optimization, a plurality of expanding openings with lower end openings are uniformly distributed at the lower end of the tensioning sleeve in the wall thickness direction, and the expanding openings are arranged in a staggered mode in the circumferential direction.
Like this, expand the opening through the setting, and make expansion mouth and expand the opening and be the setting of staggering in the circumferencial direction for tight cover that rises can outwards expand better, can carry out the clamping by the work piece better.
As optimization, one side of the expansion opening, which is far away from the open end, is connected with a first deformation hole which is arranged in the wall thickness direction of the expansion sleeve and is in a long waist hole structure, and one end of the first deformation hole is communicated with the expansion opening.
Like this, it is more reasonable to design, can make the expansion sleeve outwards expand better.
As optimization, one side of the expanded opening, which is far away from the open end, is connected with a second deformation hole which is arranged in the wall thickness direction of the tensioning sleeve and is in a long waist hole structure, and one end of the second deformation hole is communicated with the expanded opening.
Like this, it is more reasonable to design, can make the expansion sleeve outwards expand better.
Preferably, the expansion openings are four in array distribution along the circumferential direction.
Thus, the structure is simpler, and the design is more reasonable.
Preferably, the number of the expanded openings is four, and the four expanded openings are distributed in an array along the circumferential direction.
Thus, the structure is simpler, and the design is more reasonable.
As optimization, the base comprises a bottom plate with a round lower end, and the connecting structure comprises a plurality of connecting holes which are arranged at the edge of the bottom plate and distributed in a round array.
Like this, connection structure is simpler, and the design is more reasonable, can be more convenient to be connected with the lathe workstation.
As optimization, the bottom plate, the supporting seat and the positioning core shaft are integrally formed.
Therefore, the structure is simpler, and the processing and the manufacturing are more convenient.
As optimization, the lower end of the expansion block is connected with a connecting shaft which is vertically arranged downwards, the connecting shaft comprises a connecting shaft guide section at the upper end and a connecting shaft butt-joint section at the lower end, and the connecting shaft vertically penetrates downwards a guide hole formed in the positioning core shaft and a yielding hole formed in the supporting seat and extends to the lower end face of the base to form the tension connecting end.
Like this, structural design is more reasonable, can provide vertical decurrent pulling force to the piece that rises better, more convenient operation and connection.
Preferably, the diameter of the connecting shaft guide section is matched with that of the guide hole, and the connecting shaft guide section can be vertically matched with the guide hole in a sliding manner.
In this way, the expansion block can be better provided with a vertically downward pulling force.
Preferably, the tensioning block and the connecting shaft are integrally formed.
Therefore, the structure is simpler, and the processing and the manufacturing are more convenient.
As optimization, a limiting cylinder which is vertically and upwardly arranged is fixedly connected to the upper end face of the supporting seat, and the axis of the limiting cylinder is overlapped with the axis of the auxiliary box driving gear; and the diameter of an inner hole of the limiting cylinder is matched with the diameter of the mounting section of the auxiliary box driving gear, so that the mounting section of the auxiliary box driving gear can be vertically inserted into the limiting cylinder downwards, and the upper end face of the limiting cylinder is formed on the limiting surface and can be supported on the lower end face of the transmission gear section of the auxiliary box driving gear in an abutting mode.
Like this, the structure is simpler, can be better to the vertical spacing of work piece.
As optimization, the lower end of the limiting cylinder protrudes outwards to form a ring-shaped connecting plate, and the connecting plate is connected and fixed on the supporting seat through a connecting screw.
Therefore, the limiting barrel is more convenient to install and fix. The structure is simpler.
As optimization, the vertical size of the limiting cylinder is larger than the sum of the axial sizes of the mounting section and the butt joint section of the auxiliary box driving gear.
Like this, can make the unsettled setting of work piece lower extreme surface, press from both sides the work piece better and press from both sides tightly, improve processingquality.
Preferably, the upper end face of the tensioning block is provided with a first threaded pull hole, and the lower end face of the connecting shaft is provided with a second threaded pull hole.
Thus, the disassembly and assembly are more convenient, and the structure is simpler.
Preferably, the tensioning block comprises a guide column section of a cylindrical structure at the upper end and a frustum section at the lower end.
Thus, the structure is simpler, and the design is more reasonable.
As optimization, the expansion openings are correspondingly arranged at the middle position of the guide groove.
Thus, the design is more reasonable.
As optimization, the connecting shaft further comprises a connecting shaft limiting section at the middle part, a horizontal limiting threaded hole is formed in the supporting seat, a limiting screw is arranged in the limiting threaded hole, and the inner end of the limiting screw can be correspondingly inserted into a vertically arranged guide groove formed in the connecting shaft limiting section.
Thus, the horizontal rotation of the spreading block can be better avoided.
Preferably, an annular groove is formed in the outer peripheral wall of the upper end of the tensioning cylinder and below the pressing plate.
Thus, the structural design is more reasonable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the tensioning sleeve in fig. 1.
Fig. 3 is a schematic top view of fig. 2.
Fig. 4 is a schematic structural view of the spreading block portion of fig. 1.
Fig. 5 is a schematic structural view of the transmission teeth of the sub-tank driving gear in fig. 1.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to fig. 1 to 5: a clamping device for machining external splines at the end parts of gears comprises a base 1, wherein the lower end of the base is provided with a connecting structure and is used for being connected with a machine tool workbench; the base comprises a supporting seat 2 at the upper end, a positioning mandrel 3 which is vertically and upwardly arranged is arranged on the upper surface of the supporting seat, the diameter of the positioning mandrel is matched with that of a positioning section of a central hole of an auxiliary box driving gear 4 to be processed, the positioning mandrel can be vertically inserted into the positioning section of the central hole of the auxiliary box driving gear, a vertical limiting structure is also arranged on the supporting seat, and the vertical limiting structure is provided with a limiting surface 5 and can be attached to and supported on the lower end surface of a transmission gear section of the auxiliary box driving gear so as to limit the vertical downward position of the auxiliary box driving gear; a tensioning sleeve 6 is arranged above the positioning mandrel, and comprises a tensioning cylinder 7 which is vertically arranged at the lower end and is inserted into the upper section of the central hole of the auxiliary box driving gear, and a circle of pressing plate 8 which is of an annular structure and is formed by outward protrusion of the outer circumferential surface of the upper end of the tensioning cylinder; a plurality of expansion openings 9 with upper end openings are uniformly distributed at the upper end of the tensioning sleeve in the wall thickness direction; the inner hole of the expansion sleeve comprises a conical hole with the upper end having a larger diameter and the lower end having a smaller diameter, an expansion block 10 which is integrally in a frustum-shaped structure is arranged in the expansion sleeve, a plurality of strip-shaped expansion protrusions 11 which are vertically arranged are uniformly arranged on the expansion block, and vertical abdicating grooves 12 are formed in the inner peripheral wall of the conical hole so that the expansion block can vertically extend upwards into the expansion sleeve; and the lower end of the expansion block is provided with a tension connecting end and is used for being connected with a tension mechanism, the expansion block can horizontally rotate in the expansion cylinder and enable the expansion bulge to be staggered with the abdicating groove, the expansion block can vertically move downwards, the expansion sleeve is enabled to expand outwards, the expansion cylinder is enabled to expand outwards to be supported in the upper section of the center hole of the auxiliary box driving gear in a manner of being attached to the upper section of the center hole, and the lower surface of the pressing plate is correspondingly supported on the upper end face of the auxiliary box driving gear in a manner of being attached to the upper end face of the auxiliary box driving gear in a manner of being pressed tightly.
Therefore, when the clamping device for processing the external spline at the end part of the gear is used, the positioning mandrel is vertically inserted into the positioning section of the center hole of the auxiliary box driving gear, and the limiting surface of the vertical limiting structure is supported on the lower end surface of the transmission gear section of the auxiliary box driving gear in an attached mode so as to limit the vertical downward position of the auxiliary box driving gear. Then, the lower end of the expansion sleeve is inserted into the upper section of the center hole of the auxiliary box driving gear, the expansion block is vertically and upwardly inserted into the expansion sleeve, the expansion protrusion and the abdicating groove are respectively arranged right oppositely, and the expansion sleeve is horizontally rotated when being clamped, so that the expansion protrusion and the abdicating groove are arranged in a staggered manner. After that, the tension mechanism drives the expansion block to vertically move downwards, the outer side surface of the expansion bulge is matched with the conical hole, the expansion block moves downwards, so that the expansion sleeve expands outwards, the expansion cylinder expands outwards to be attached and supported in the upper section of the center hole of the auxiliary box driving gear, and the lower surface of the pressure plate is correspondingly attached and supported on the upper end face of the auxiliary box driving gear to compress the workpiece. After the machining is finished, the tension mechanism is loosened, the expansion block moves upwards, then the expansion sleeve is horizontally rotated, the expansion protrusion and the abdicating groove are respectively arranged oppositely, the expansion sleeve is taken down upwards, and then the workpiece is taken down. The structure has the advantages of simple structure and capability of more conveniently completing workpiece clamping and workpiece taking and placing.
In the embodiment, a plurality of expanding openings 13 with lower end openings are uniformly distributed at the lower end of the tensioning sleeve in the wall thickness direction, and the expanding openings are arranged in a staggered manner in the circumferential direction.
Like this, expand the opening through the setting, and make expansion mouth and expand the opening and be the setting of staggering in the circumferencial direction for tight cover that rises can outwards expand better, can carry out the clamping by the work piece better.
In this embodiment, one side of the expansion opening 9, which is far away from the open end, is connected with a first deformation hole 14 which is arranged in the wall thickness direction of the expansion sleeve and has a long waist hole structure, and one end of the first deformation hole is communicated with the expansion opening.
Like this, it is more reasonable to design, can make the expansion sleeve outwards expand better.
In this embodiment, a second deformation hole 15 which is arranged in the wall thickness direction of the expansion sleeve and has a long waist hole structure is connected to one side of the expansion opening 13, which is far away from the open end, and one end of the second deformation hole is communicated with the expansion opening.
Like this, it is more reasonable to design, can make the expansion sleeve outwards expand better.
In this embodiment, the expansion openings 9 are four in an array along the circumferential direction.
Thus, the structure is simpler, and the design is more reasonable.
In this embodiment, the number of the openings 13 is four, and the four openings are distributed in an array along the circumferential direction.
Thus, the structure is simpler, and the design is more reasonable.
In this embodiment, the base includes that the whole of lower extreme is circular shape bottom plate, connection structure is including setting up at the bottom plate edge and be a plurality of connecting holes of circular array distribution.
Like this, connection structure is simpler, and the design is more reasonable, can be more convenient to be connected with the lathe workstation.
In this embodiment, the bottom plate, the support base, and the positioning core shaft are integrally formed.
Therefore, the structure is simpler, and the processing and the manufacturing are more convenient.
In this embodiment, the lower end of the spreading block 10 is connected with a connecting shaft 16 which is vertically arranged downwards, the connecting shaft comprises a connecting shaft guide section 17 at the upper end and a connecting shaft butt joint section 18 at the lower end, and the connecting shaft vertically passes through a guide hole arranged on the positioning core shaft and a abdication hole arranged on the supporting seat downwards and extends to the lower end face of the base to form the tension connecting end.
Like this, structural design is more reasonable, can provide vertical decurrent pulling force to the piece that rises better, more convenient operation and connection.
In this embodiment, the diameter of the connecting shaft guide section 17 is matched with the diameter of the guide hole, and the connecting shaft guide section is vertically slidably fitted in the guide hole.
In this way, the expansion block can be better provided with a vertically downward pulling force.
In this embodiment, the tension block and the connecting shaft are integrally formed.
Therefore, the structure is simpler, and the processing and the manufacturing are more convenient.
In the specific embodiment, a limiting cylinder 19 which is vertically and upwardly arranged is fixedly connected to the upper end face of the supporting seat, and the axis of the limiting cylinder is superposed with the axis of the auxiliary box driving gear; and the diameter of an inner hole of the limiting cylinder is matched with the diameter of the mounting section of the auxiliary box driving gear, so that the mounting section of the auxiliary box driving gear can be vertically inserted into the limiting cylinder downwards, and the upper end face of the limiting cylinder is formed on the limiting surface and can be supported on the lower end face of the transmission gear section of the auxiliary box driving gear in an abutting mode.
Like this, the structure is simpler, can be better to the vertical spacing of work piece.
In this embodiment, the lower end of the limiting cylinder protrudes outwards to form a ring-shaped connecting plate 20, and the connecting plate is fixed on the supporting seat through a connecting screw.
Therefore, the limiting barrel is more convenient to install and fix. The structure is simpler.
In the specific embodiment, the vertical size of the limiting cylinder is larger than the sum of the axial sizes of the installation section and the butt joint section of the auxiliary box driving gear.
Like this, can make the unsettled setting of work piece lower extreme surface, press from both sides the work piece better and press from both sides tightly, improve processingquality.
In this embodiment, the upper end surface of the tension block is provided with a first threaded pull hole 21, and the lower end surface of the connecting shaft is provided with a second threaded pull hole 22.
Thus, the disassembly and assembly are more convenient, and the structure is simpler.
In this embodiment, the tensioning block comprises a guide column section 23 with a cylindrical structure at the upper end and a frustum section 24 at the lower end.
Thus, the structure is simpler, and the design is more reasonable.
In this embodiment, the expansion openings are correspondingly arranged at the middle position of the guide groove.
Thus, the design is more reasonable.
In this embodiment, the connecting shaft still includes the spacing section 25 of connecting shaft at middle part, is equipped with the spacing screw hole of horizontally on the supporting seat, and the threaded hole of spacing is equipped with stop screw 26, and the grafting that can correspond in the inner of stop screw sets up the guide way of the vertical setting that the spacing section of connecting shaft has.
Thus, the horizontal rotation of the spreading block can be better avoided.
In the specific embodiment, an annular groove is formed in the peripheral wall of the upper end of the tension cylinder below the pressure plate.
Thus, the structural design is more reasonable.
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 (10)
1. A clamping device for machining external splines at the end part of a gear comprises a base, wherein the lower end of the base is provided with a connecting structure and is used for being connected with a machine tool workbench; the positioning core shaft can be vertically inserted into the positioning section of the center hole of the auxiliary box driving gear, and the supporting seat is also provided with a vertical limiting structure which is provided with a limiting surface and can be attached and supported on the lower end surface of the transmission tooth section of the auxiliary box driving gear so as to limit the vertical downward position of the auxiliary box driving gear; a tensioning sleeve is arranged above the positioning mandrel, and comprises a tensioning cylinder which is vertically arranged at the lower end and is inserted into the upper section of the central hole of the auxiliary box driving gear, and a circle of pressing plate which is of an annular structure and is formed by outward protrusion of the outer circumferential surface of the upper end of the tensioning cylinder; a plurality of expansion openings with upper end openings are uniformly distributed at the upper end of the tensioning sleeve in the wall thickness direction; the inner hole of the expansion sleeve comprises a conical hole with the upper end having a larger diameter and the lower end having a smaller diameter, an expansion block which is integrally in a frustum-shaped structure is arranged in the expansion sleeve, a plurality of strip-shaped expansion bulges which are vertically arranged are uniformly arranged on the expansion block, and a vertical abdicating groove is arranged on the inner peripheral wall of the conical hole so that the expansion block can vertically extend upwards into the expansion sleeve; and the lower end of the expansion block is provided with a tension connecting end and is used for being connected with a tension mechanism, the expansion block can horizontally rotate in the expansion cylinder and enable the expansion bulge to be staggered with the abdicating groove, the expansion block can vertically move downwards, the expansion sleeve is enabled to expand outwards, the expansion cylinder is enabled to expand outwards to be supported in the upper section of the center hole of the auxiliary box driving gear in a manner of being attached to the upper section of the center hole, and the lower surface of the pressing plate is correspondingly supported on the upper end face of the auxiliary box driving gear in a manner of being attached to the upper end face of the auxiliary box driving gear in a manner of being pressed tightly.
2. The clamping device for machining the external spline at the end part of the gear according to claim 1, is characterized in that: the lower end of the tensioning sleeve is uniformly distributed with a plurality of expanding openings with lower end openings in the wall thickness direction, and the expanding openings are arranged in a staggered manner in the circumferential direction.
3. The clamping device for machining the external spline at the end part of the gear according to claim 2, is characterized in that: one side of keeping away from the opening end on the expansion opening links up and runs through the first deformation hole that sets up and be long waist hole structure of tight cover wall thickness direction that rises, and first deformation hole one end sets up with expansion opening intercommunication.
4. The clamping device for machining the external spline at the end part of the gear as claimed in claim 3, wherein: one side of the opening-expanding part far away from the opening end is connected with a second deformation hole which is arranged in the wall thickness direction of the tensioning sleeve and is in a long waist hole structure, and one end of the second deformation hole is communicated with the opening-expanding part.
5. The clamping device for machining the external spline at the end part of the gear as claimed in claim 3, wherein: the expansion openings are four in array distribution along the circumferential direction.
6. The clamping device for machining the external spline at the end part of the gear as claimed in claim 3, wherein: the expanded openings are four and are distributed in an array along the circumferential direction.
7. The clamping device for machining the external spline at the end part of the gear according to claim 1, is characterized in that: the base comprises a circular bottom plate with the lower end as a whole, and the connecting structure comprises a plurality of connecting holes which are arranged at the edge of the bottom plate and distributed in a circular array.
8. The clamping device for machining the external spline at the end part of the gear according to claim 7, is characterized in that: the bottom plate, the supporting seat and the positioning core shaft are integrally formed.
9. The clamping device for machining the external spline at the end part of the gear according to claim 1, is characterized in that: the lower end of the expansion block is connected with a connecting shaft which is vertically arranged downwards, the connecting shaft comprises a connecting shaft guide section at the upper end and a connecting shaft butt-joint section at the lower end, and the connecting shaft vertically penetrates through a guide hole in the positioning core shaft and a yielding hole in the supporting seat and extends to the lower end face of the base downwards to form the tension connecting end.
10. The clamping device for machining the external spline at the end part of the gear according to claim 9, is characterized in that: the diameter of the connecting shaft guide section is matched with that of the guide hole, and the connecting shaft guide section can be vertically matched in the guide hole in a sliding manner;
the tensioning block and the connecting shaft are integrally formed;
the upper end face of the supporting seat is fixedly connected with a limiting cylinder which is vertically and upwards arranged, and the axis of the limiting cylinder is superposed with the axis of the auxiliary box driving gear; the diameter of an inner hole of the limiting cylinder is matched with the diameter of the mounting section of the auxiliary box driving gear, so that the mounting section of the auxiliary box driving gear can be vertically inserted into the limiting cylinder downwards, and the upper end surface of the limiting cylinder forms a limiting surface and can be supported on the lower end surface of the transmission gear section of the auxiliary box driving gear in an abutting mode;
the lower end of the limiting cylinder protrudes outwards to form a circle of annular connecting plate, and the connecting plate is connected and fixed on the supporting seat through a connecting screw;
the vertical size of the limiting cylinder is larger than the sum of the axial sizes of the mounting section and the butt joint section of the auxiliary box driving gear;
the upper end surface of the tensioning block is provided with a first threaded pull hole, and the lower end surface of the connecting shaft is provided with a second threaded pull hole;
the tensioning block comprises a guide column section with a cylindrical structure at the upper end and a frustum section at the lower end;
the expansion openings are correspondingly arranged at the middle position of the guide groove one by one;
the connecting shaft also comprises a connecting shaft limiting section in the middle, a horizontal limiting threaded hole is formed in the supporting seat, a limiting screw is arranged in the limiting threaded hole, and the inner end of the limiting screw can be correspondingly inserted into a vertically arranged guide groove in the connecting shaft limiting section;
an annular groove is formed in the outer peripheral wall of the upper end of the tensioning cylinder and below the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120919421.XU CN215146923U (en) | 2021-04-29 | 2021-04-29 | Clamping device for machining external splines at end parts of gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120919421.XU CN215146923U (en) | 2021-04-29 | 2021-04-29 | Clamping device for machining external splines at end parts of gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215146923U true CN215146923U (en) | 2021-12-14 |
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ID=79365491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120919421.XU Active CN215146923U (en) | 2021-04-29 | 2021-04-29 | Clamping device for machining external splines at end parts of gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215146923U (en) |
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2021
- 2021-04-29 CN CN202120919421.XU patent/CN215146923U/en active Active
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Address after: No.1, Mudan Road, Nan'an District, Chongqing 400055 Patentee after: Double ring drive (Chongqing) Precision Technology Co.,Ltd. Address before: No.1, Mudan Road, Nan'an District, Chongqing 400055 Patentee before: CHONGQING SHENJIAN AUTO TRANSMISSION CO.,LTD. |