CN212265265U - Special tool of car transmission shaft connector processing - Google Patents
Special tool of car transmission shaft connector processing Download PDFInfo
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- CN212265265U CN212265265U CN202020989523.4U CN202020989523U CN212265265U CN 212265265 U CN212265265 U CN 212265265U CN 202020989523 U CN202020989523 U CN 202020989523U CN 212265265 U CN212265265 U CN 212265265U
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Abstract
The utility model relates to the technical field of automobile transmission shaft processing, in particular to a special jig for processing an automobile transmission shaft connector; the lathe comprises a lathe spindle, a hydraulic chuck, a push-pull mechanism, a movable mandrel and a positioning seat; the positioning seat comprises a connecting disc, and the positioning seat is fixedly connected to a lathe spindle through the connecting disc; the positioning seat is provided with a mandrel positioning hole and a structure hole which are coaxially arranged, 4 square holes are distributed on the positioning seat in a circumferential array mode in the radial direction of the structure hole, a clamping block is movably connected in each square hole, a movable mandrel slides along the mandrel positioning hole under the driving of a push-pull mechanism, so that the clamping block is pushed outwards from each square hole to clamp the inner wall of the transmission shaft connector body, the clamping fitting degree is high, the clamping force is uniform, clamping injury and deformation can be effectively prevented, the clamping stability is good, and the machining efficiency and quality of the transmission shaft connector can be effectively improved.
Description
Technical Field
The utility model relates to an automobile transmission shaft processing technology field, in particular to special tool of automobile transmission shaft connector processing.
Background
The automobile transmission shaft connector is an important component part of an automobile transmission system, a groove is designed in an inner cavity of the automobile transmission shaft connector, and along with the development trend of light weight of an automobile, the inner cavity of the transmission shaft connector is designed in an 8-groove mode, and compared with the traditional 3-groove or 6-groove mode, the automobile transmission shaft connector is small in appearance, thin in wall thickness, light in weight and high in transmission efficiency. Because the number of the grooves in the connector is increased, the wall thickness is thinner, and the clamping is easy to deform in the processing process, the requirements on processing jigs are higher; how to avoid transmission shaft connector centre gripping to warp through the institutional advancement of transmission shaft connector processing special tool, it is the technical problem who needs to solve urgently to ensure the quality and improve production efficiency simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the special fixture for machining the automobile transmission shaft connector is provided, so that clamping deformation is effectively avoided, quality is ensured, and production efficiency is improved.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a special jig for processing an automobile transmission shaft connector comprises a lathe spindle, a hydraulic chuck, a push-pull mechanism, a movable core shaft and a positioning seat;
the hydraulic chuck is coaxially fixed on a lathe spindle;
the positioning seat comprises a connecting disc, and the positioning seat is fixedly connected to a lathe spindle through the connecting disc;
the positioning seat is provided with an inner hole, the inner hole comprises a mandrel positioning hole and a structure hole which are coaxially arranged, and the structure hole is connected to one end of the mandrel positioning hole in the first direction; the positioning seat is provided with 4 square holes distributed in a circumferential array manner in the radial direction of the structural hole, clamping blocks are movably connected in the square holes, arc limiting parts consistent with the arc of the inner groove of the transmission shaft connector body are arranged at the positions, facing the outer sides of the square holes, of the clamping blocks, and inclined planes are arranged at the positions, facing the inner sides of the square holes, of the clamping blocks;
the movable mandrel is arranged in the inner hole in a penetrating mode, the side portion of the movable mandrel is in clearance fit with the mandrel positioning hole, a chamfer with the inclination being consistent with that of the inclined surface of the clamping block is arranged at one end of the movable mandrel in the first direction, and one end, deviating from the first direction, of the movable mandrel is connected to the push-pull mechanism, so that the movable mandrel slides along the mandrel positioning hole under the driving of the push-pull mechanism.
Wherein, be provided with two locating levers in every square hole respectively, the grip block is equipped with the locating hole with locating lever sliding fit.
Wherein, the inclined plane and the axial included angle of the inner hole are 8-12 degrees.
Wherein, the one end of hole orientation first direction is equipped with tubaeform opening.
Wherein, be connected with the dust ring between opening and the structure hole, the dust ring is used for preventing iron fillings from getting into structure hole and dabber locating hole.
The push-pull mechanism comprises a hydraulic pull rod, a connecting shaft, a screw rod and a nut;
the hydraulic pull rod is fixedly connected with the connecting shaft, the connecting shaft is provided with a thread through hole, the screw rod is connected with the thread through hole in a thread matching manner, the number of the nuts is two, the two nuts are respectively connected with the screw rod in a thread manner, the two nuts are respectively located at two ends of the connecting shaft and used for locking two ends of the connecting shaft, and one end of the screw rod in a first direction is fixedly connected with the movable core shaft in a coaxial manner.
The beneficial effects of the utility model reside in that: the utility model provides a special tool of car transmission shaft connector processing simple structure, it is convenient to use, the grip block centre gripping design to 8 ditch transmission shaft connectors adoption quartering, the grip block passes through the slot that the spacing portion of circular arc corresponds centre gripping transmission shaft connector body, the centre gripping laminating degree is high, the clamping-force is even, can effectively prevent to press from both sides and hinder and warp, the centre gripping stability is good, transmission shaft connector machining efficiency and quality can effectively be promoted, accomplish the processing of internal diameter and external diameter simultaneously behind the clamping, inside and outside axiality is good, can relate to in a flexible way according to the appearance of the transmission shaft connector of different grade type, and extensive applicability is general.
Drawings
Fig. 1 is a schematic structural view of an automobile transmission shaft connector processing jig according to an embodiment of the present invention in a clamping state;
fig. 2 is a schematic structural view of an automobile transmission shaft connector processing jig according to an embodiment of the present invention in a non-clamping state;
fig. 3 is a partial axial view of a processing jig for an automotive transmission shaft connector according to an embodiment of the present invention;
fig. 4 is a partial axial view of the jig for machining the connector of the transmission shaft of the automobile according to the embodiment of the present invention;
description of reference numerals:
1. a lathe spindle; 2. a hydraulic chuck; 3. a push-pull mechanism; 31. a hydraulic pull rod; 32. a connecting shaft; 33. a screw; 34. a nut; 4. a movable mandrel; 41. chamfering; 5. positioning seats; 51. a connecting disc; 52. an inner bore; 521. positioning a mandrel hole; 522. a structural pore; 523. an opening; 53. a square hole; 54. positioning a rod; 6. a clamping block; 61. positioning holes; 62. an arc limiting part; 63. a bevel; 7. a dust ring.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: the clamping block clamping design of quartering is adopted, the clamping block corresponds to the groove for clamping the transmission shaft connector body through the arc limiting part, the clamping fitting degree is high, the clamping force is uniform, the clamping injury and deformation can be effectively prevented, the clamping stability is good, and the processing efficiency and the quality of the transmission shaft connector can be effectively improved.
Referring to fig. 1 to 4, the utility model relates to a special tool for processing a connector of an automobile transmission shaft, which comprises a lathe spindle 1, a hydraulic chuck 2, a push-pull mechanism 3, a movable mandrel 4 and a positioning seat 5;
the hydraulic chuck 2 is coaxially fixed on a lathe spindle 1;
the positioning seat 5 comprises a connecting disc 51, and the positioning seat 5 is fixedly connected to the lathe spindle 1 through the connecting disc 51;
the positioning seat 5 is provided with an inner hole 52, the inner hole 52 comprises a mandrel positioning hole 521 and a structure hole 522 which are coaxially arranged, and the structure hole 522 is connected to one end of the mandrel positioning hole 521 in the first direction; the positioning seat 5 is circumferentially distributed with 4 square holes 53 in an array manner in the radial direction of the structure hole 522, a clamping block 6 is movably connected in each square hole 53, an arc limiting part 62 consistent with the arc of the inner groove of the transmission shaft connector body is arranged at the position, facing the outer side of each square hole 53, of each clamping block 6, and an inclined surface 63 is arranged at the position, facing the inner side of each square hole 53, of each clamping block 6;
the movable mandrel 4 penetrates through the inner hole 52, the side portion of the movable mandrel 4 is in clearance fit with the mandrel positioning hole 521, a chamfer 41 with the same inclination as the inclined surface 63 of the clamping block 6 is arranged at one end of the movable mandrel 4 in the first direction, and one end of the movable mandrel 4, which is deviated from the first direction, is connected to the push-pull mechanism 3, so that the movable mandrel 4 slides along the mandrel positioning hole 521 under the driving of the push-pull mechanism 3.
The working principle of the special jig structure for processing the automobile transmission shaft connector comprises the following steps: when processing, embolia positioning seat 5 with the transmission shaft connector body, then drive movable dabber 4 through push-and-pull mechanism 3 and move to the first direction, make chamfer 41 of movable dabber 4 and the inclined plane 63 contact of grip block 6, continue to move to the first direction through movable dabber 4, thereby outwards propelling movement along square hole 53 with grip block 6, make the interior ditch circular arc of its circular arc spacing portion 62 and transmission shaft connector body closely cooperate and expand tightly, thereby grip transmission shaft connector body from the inboard through four grip blocks 6 of circumference array distribution, then expand the processing to the position that needs processing through appearance sword and internal diameter sword, after the processing is accomplished, push-and-pull mechanism 3 drives movable dabber 4 and returns, make each grip block 6 break away from the centre gripping to this internal ditch groove of transmission shaft connector, take off the transmission shaft connector body that the processing was accomplished.
Above-mentioned special tool of car transmission shaft connector processing simple structure, it is convenient to use, adopt the 6 centre gripping designs of grip block of quartering to 8 ditch transmission shaft connectors, grip block 6 corresponds the slot of centre gripping transmission shaft connector body through the spacing portion 62 of circular arc, the centre gripping laminating degree is high, the clamping-force is even, can effectively prevent to press from both sides and hinder and warp, the centre gripping stability is good, transmission shaft connector machining efficiency and quality can effectively be promoted, accomplish the processing of internal diameter and external diameter simultaneously behind the clamping, inside and outside axiality is good, can relate to in a flexible way according to the appearance of the transmission shaft connector of different grade type, and wide applicability is extensive.
Furthermore, in the above jig structure dedicated for processing the connector of the transmission shaft of the automobile, two positioning rods 54 are respectively arranged in each square hole 53, and the clamping block 6 is provided with a positioning hole 61 in sliding fit with the positioning rod 54.
As can be seen from the above description, the clamping block 6 is slidably fitted with the positioning rod 54 through the positioning hole 61, so as to limit the clamping block 6 from sliding excessively along the square hole 53 and separating from the square hole 53, and also play a role in auxiliary limiting in sliding, so as to ensure that the arc limiting portion 62 of the clamping block 6 is tightly fitted with the arc of the inner groove of the transmission shaft connector body in the clamping state. The positioning rod 54 may be a countersunk screw, and the countersunk screw passes through the limiting hole of the clamping block 6 and then has two ends in threaded connection with the threaded hole by being provided with threaded holes at two sides of the square hole 53.
Further, in the above jig structure dedicated for machining the automobile transmission shaft connector, an axial included angle between the inclined surface 63 and the inner hole 52 is 8-12 degrees.
As can be seen from the above description, the inclined surface 63 has a suitable inclination, so that when the chamfer 41 of the movable mandrel 4 is matched with the inclined surface 63, the clamping block 6 can be pushed outwards more smoothly, and the arc limiting portion 62 of the clamping block 6 is tightly matched with the arc of the inner groove of the transmission shaft connector body.
Further, in the above jig structure dedicated for machining the automotive transmission shaft connector, a horn-shaped opening 523 is disposed at one end of the inner hole 52 facing the first direction.
As can be seen from the above description, the end of the inner hole 52 facing the first direction is provided with a trumpet-shaped opening 523, which facilitates the inner hole 52 to enter the transmission shaft connector for processing the inner hole 52 and discharging the generated debris.
Further, in the above-mentioned special tool structure of automobile transmission shaft connector processing, be connected with dust ring 7 between opening 523 and the structure hole 522, dust ring 7 is used for preventing iron fillings to get into structure hole 522 and dabber locating hole 521.
As can be seen from the above description, the dust ring 7 is provided to place the iron chips and dust into the structure hole 522 and the mandrel positioning hole 521, so as to affect the positioning accuracy of the positioning connection transmission shaft connector body.
Further, in the above jig structure dedicated for machining the automotive transmission shaft connector, the push-pull mechanism 3 includes a hydraulic pull rod 31, a connecting shaft 32, a screw 33 and a nut 34;
hydraulic pressure pull rod 31 and connecting axle 32 fixed connection, connecting axle 32 is equipped with the screw thread through-hole, screw rod 33 is connected with screw thread through-hole screw-thread fit, nut 34 quantity has two, respectively with screw rod 33 threaded connection, two nuts 34 are located the both ends of connecting axle 32 respectively for the both ends of locking connecting axle 32, the first direction one end and the coaxial fixed connection of activity dabber 4 of screw rod 33.
As can be seen from the above description, when the hydraulic pull rod 31 moves in the first direction, the connecting shaft 32 is driven, and then the movable mandrel 4 is driven by the screw 33 to move in the first direction, so that the chamfer 41 of the movable mandrel 4 contacts with the inclined surface 63 of the clamping block 6, and the clamping block 6 slides outwards along the square hole 53, so that the arc limiting portion 62 of the clamping block closely fits with the arc of the inner groove of the transmission shaft connector body, thereby clamping the transmission shaft connector body, and when the hydraulic pull rod 31 moves away from the first direction, the movable mandrel 4 is driven to return away from the first direction, so that the arc limiting portion 62 is separated from the arc of the inner groove of the transmission shaft connector body, and the clamping is released.
Example 1
A special jig for processing an automobile transmission shaft connector comprises a lathe spindle 1, a hydraulic chuck 2, a push-pull mechanism 3, a movable core shaft 4 and a positioning seat 5; the hydraulic chuck 2 is coaxially fixed on a lathe spindle 1; the positioning seat 5 comprises a connecting disc 51, and the positioning seat 5 is fixedly connected to the lathe spindle 1 through the connecting disc 51; the positioning seat 5 is provided with an inner hole 52, the inner hole 52 comprises a mandrel positioning hole 521 and a structure hole 522 which are coaxially arranged, and the structure hole 522 is connected to one end of the mandrel positioning hole 521 in the first direction; the positioning seat 5 is circumferentially distributed with 4 square holes 53 in an array manner in the radial direction of the structure hole 522, a clamping block 6 is movably connected in each square hole 53, an arc limiting part 62 consistent with the arc of the inner groove of the transmission shaft connector body is arranged at the position, facing the outer side of each square hole 53, of each clamping block 6, and an inclined surface 63 is arranged at the position, facing the inner side of each square hole 53, of each clamping block 6; the movable mandrel 4 penetrates through the inner hole 52, the side portion of the movable mandrel 4 is in clearance fit with the mandrel positioning hole 521, a chamfer 41 with the same inclination as the inclined surface 63 of the clamping block 6 is arranged at one end of the movable mandrel 4 in the first direction, and one end of the movable mandrel 4, which is deviated from the first direction, is connected to the push-pull mechanism 3, so that the movable mandrel 4 slides along the mandrel positioning hole 521 under the driving of the push-pull mechanism 3. Two positioning rods 54 are respectively arranged in each square hole 53, and the clamping block 6 is provided with a positioning hole 61 in sliding fit with the positioning rods 54. The inclined surface 63 and the inner hole 52 form an axial included angle of 8-12 degrees. One end of the inner hole 52 facing the first direction is provided with a trumpet-shaped opening 523. Be connected with dust ring 7 between opening 523 and the structure hole 522, dust ring 7 is used for preventing iron fillings to get into structure hole 522 and dabber locating hole 521. The push-pull mechanism 3 comprises a hydraulic pull rod 31, a connecting shaft 32, a screw 33 and a nut 34; hydraulic pressure pull rod 31 and connecting axle 32 fixed connection, connecting axle 32 is equipped with the screw thread through-hole, screw rod 33 is connected with screw thread through-hole screw-thread fit, nut 34 quantity has two, respectively with screw rod 33 threaded connection, two nuts 34 are located the both ends of connecting axle 32 respectively for the both ends of locking connecting axle 32, the first direction one end and the coaxial fixed connection of activity dabber 4 of screw rod 33.
To sum up, the utility model provides a special tool of car transmission shaft connector processing simple structure, it is convenient to use, to the grip block centre gripping design of 8 ditch transmission shaft connectors adoption quartering, the grip block corresponds the slot of centre gripping transmission shaft connector body through the spacing portion of circular arc, the centre gripping laminating degree is high, the clamping-force is even, can effectively prevent to press from both sides and hinder and warp, the centre gripping stability is good, can effectively promote transmission shaft connector machining efficiency and quality, accomplish the processing of internal diameter and external diameter simultaneously behind the clamping of once, high production efficiency, the inside and outside axiality is good, can relate to in a flexible way according to the appearance of the transmission shaft connector of different grade type, and wide applicability is general.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A special jig for processing an automobile transmission shaft connector is characterized by comprising a lathe spindle, a hydraulic chuck, a push-pull mechanism, a movable mandrel and a positioning seat;
the hydraulic chuck is coaxially fixed on a lathe spindle;
the positioning seat comprises a connecting disc, and the positioning seat is fixedly connected to a lathe spindle through the connecting disc;
the positioning seat is provided with an inner hole, the inner hole comprises a mandrel positioning hole and a structure hole which are coaxially arranged, and the structure hole is connected to one end of the mandrel positioning hole in the first direction; the positioning seat is provided with 4 square holes distributed in a circumferential array manner in the radial direction of the structural hole, clamping blocks are movably connected in the square holes, arc limiting parts consistent with the arc of the inner groove of the transmission shaft connector body are arranged at the positions, facing the outer sides of the square holes, of the clamping blocks, and inclined planes are arranged at the positions, facing the inner sides of the square holes, of the clamping blocks;
the movable mandrel is arranged in the inner hole in a penetrating mode, the side portion of the movable mandrel is in clearance fit with the mandrel positioning hole, a chamfer with the inclination being consistent with that of the inclined surface of the clamping block is arranged at one end of the movable mandrel in the first direction, and one end, deviating from the first direction, of the movable mandrel is connected to the push-pull mechanism, so that the movable mandrel slides along the mandrel positioning hole under the driving of the push-pull mechanism.
2. The jig as claimed in claim 1, wherein each of the square holes has two positioning rods, and the holding block has positioning holes for slidably engaging with the positioning rods.
3. The jig as claimed in claim 1, wherein the inclined surface and the inner bore have an axial angle of 8-12 degrees.
4. The jig as claimed in claim 1, wherein a flared opening is provided at an end of the inner hole facing the first direction.
5. The jig special for machining the automobile transmission shaft connector according to claim 4, wherein a dust ring is connected between the opening and the structural hole, and the dust ring is used for preventing iron chips from entering the structural hole and the mandrel positioning hole.
6. The jig special for machining the automobile transmission shaft connector according to claim 1, wherein the push-pull mechanism comprises a hydraulic pull rod, a connecting shaft, a screw rod and a nut;
the hydraulic pull rod is fixedly connected with the connecting shaft, the connecting shaft is provided with a thread through hole, the screw rod is connected with the thread through hole in a thread matching manner, the number of the nuts is two, the two nuts are respectively connected with the screw rod in a thread manner, the two nuts are respectively located at two ends of the connecting shaft and used for locking two ends of the connecting shaft, and one end of the screw rod in a first direction is fixedly connected with the movable core shaft in a coaxial manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020989523.4U CN212265265U (en) | 2020-06-03 | 2020-06-03 | Special tool of car transmission shaft connector processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020989523.4U CN212265265U (en) | 2020-06-03 | 2020-06-03 | Special tool of car transmission shaft connector processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212265265U true CN212265265U (en) | 2021-01-01 |
Family
ID=73880107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020989523.4U Active CN212265265U (en) | 2020-06-03 | 2020-06-03 | Special tool of car transmission shaft connector processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212265265U (en) |
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2020
- 2020-06-03 CN CN202020989523.4U patent/CN212265265U/en active Active
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