CN215902570U - Spline type axle tube mould - Google Patents
Spline type axle tube mould Download PDFInfo
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- CN215902570U CN215902570U CN202122086901.5U CN202122086901U CN215902570U CN 215902570 U CN215902570 U CN 215902570U CN 202122086901 U CN202122086901 U CN 202122086901U CN 215902570 U CN215902570 U CN 215902570U
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Abstract
The utility model relates to the field of dies, in particular to a spline type shaft tube die which comprises a frame, a first supporting table, a second supporting table and an extrusion mechanism, wherein the first supporting table is provided with a first boosting mechanism, the second supporting table is provided with a second boosting mechanism, the extrusion mechanism is positioned between the first supporting table and the second supporting table and comprises a plurality of extrusion units, each extrusion unit comprises a driving piece and an arc-shaped extrusion block, the extrusion block is provided with an external spline, and each driving piece can drive each extrusion block to be spliced into a tube shape. When the technical scheme is adopted, the external splines are conveniently formed on the outer side wall of the shaft tube.
Description
Technical Field
The utility model relates to the field of molds, in particular to a spline type shaft tube mold.
Background
The transmission shaft is a high-rotation-speed rotating part, and in order to meet vehicle types with different wheelbases and reduce the specification of the transmission shaft, the transmission shaft usually comprises two shaft tubes, wherein an inner shaft tube and an outer shaft tube are matched through a spline sleeve, namely an outer spline is welded on the outer side wall of one shaft tube, and an inner spline is welded on the inner side wall of the other shaft tube, but the transmission shaft has higher cost and lower production efficiency; based on this, take the shaping external splines of central siphon lateral wall as the example, trade personnel have proposed the design of direct extrusion shaping external splines at the lateral wall of central siphon, but do not have corresponding supporting mould at present and process external splines at the lateral wall of central siphon.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a die for conveniently forming external splines on the outer side wall of a shaft tube.
In order to achieve the purpose, the technical scheme of the utility model provides a spline shaft tube die, which comprises a frame, a first supporting table, a second supporting table and an extrusion mechanism, wherein the first supporting table is provided with a first boosting mechanism, the second supporting table is provided with a second boosting mechanism, the extrusion mechanism is positioned between the first supporting table and the second supporting table, the extrusion mechanism comprises a plurality of extrusion units, each extrusion unit comprises a driving piece and an arc-shaped extrusion block, the extrusion block is provided with an external spline, and each driving piece can drive each extrusion block to be spliced into a tube shape.
The technical effect of the scheme is as follows: after the shaft tube is arranged on the first supporting table, the first boosting mechanism pushes the shaft tube to move, and one end of the shaft tube penetrates through a space defined by the extrusion blocks and then is positioned on the second supporting table; then each driving piece drives each extrusion block to move and enables the external splines on each extrusion block to be in contact with the outer pipe wall of the shaft pipe, and the external splines on each extrusion block form external splines on the outer pipe wall of the shaft pipe under the continuous driving action of each driving piece of each extrusion block; when the extrusion blocks are spliced into a tubular shape, the extrusion blocks reset under the action of the driving pieces, then the second boosting mechanism pushes the shaft tube to move in the reverse direction and enables the shaft tube to be positioned on the first supporting platform, and after the shaft tube with the formed external splines is moved away, the external splines of the next shaft tube can be formed.
Furthermore, arc-shaped grooves are formed in the first supporting platform and the second supporting platform. The technical effect of the scheme is as follows: the central siphon is arranged in the arc wall, and is more stable when being convenient for the central siphon to be located first brace table and second brace table.
Furthermore, an inner supporting rod is fixedly connected to the second supporting platform, the diameter of the inner supporting rod is equal to the inner diameter of the shaft tube, and the inner supporting rod is located above the arc-shaped groove. The technical effect of the scheme is as follows: when the external splines on each extrusion block are extruded and formed on the outer pipe wall of the shaft pipe, the shaft pipe is supported through the inner support rod, and the shaft pipe is prevented from deforming inwards.
The inner supporting mechanism comprises an inner supporting pipe, an inner supporting barrel and a supporting and pushing unit, the inner supporting pipe is fixedly connected with the second supporting table, the diameter of the inner supporting pipe is smaller than the inner diameter of the shaft pipe, and the inner supporting pipe is positioned above the arc-shaped groove; the inner supporting barrel is fixedly sleeved on the inner supporting pipe, the inner part of the inner supporting barrel is conical, the inner diameter of the opening end of the inner supporting barrel is larger than the inner diameter of the bottom end of the inner supporting barrel, and the inner supporting barrel is provided with a plurality of through grooves along the circumferential direction; the supporting and pushing unit comprises a push-pull rod, a push-pull disc and a supporting ring, the push-pull rod is connected with the second supporting table in a sliding mode, the push-pull disc is fixedly connected with the push-pull rod and located at the free end of the inner supporting pipe, the supporting ring is fixedly connected with the push-pull disc, and the supporting ring can be located between the inner supporting pipe and the opening end of the inner supporting barrel. The technical effect of the scheme is as follows: the shaft tube is directly supported by the inner supporting rod, when the shaft tube is used for forming the external spline, the stress on the inner side wall of the shaft tube can be tightly attached to the inner supporting rod, and the shaft tube is inconvenient in the process of withdrawing from the inner supporting rod.
According to the scheme, after the shaft tube is sleeved on the inner supporting tube and the inner supporting barrel, the inner supporting barrel is in contact with the inner side wall of the shaft tube in a natural state, and the outer spline is formed by extrusion on the outer side wall of the shaft tube at the position of the inner supporting barrel after the extrusion blocks are closed; in the process of extruding the shaft tube, the support ring supports the open end of the inner supporting barrel and the bottom of the inner supporting barrel supports the bottom end of the inner supporting barrel, namely the open end of the inner supporting barrel and the bottom end of the inner supporting barrel support the inner side wall of the shaft tube when each extrusion block extrudes the shaft tube; after extrusion is finished, the force applied to the inner side wall of the shaft tube can be tightly attached to the inner supporting barrel; after the push-pull rod pushes the push-pull disc to drive the support ring to withdraw from the opening end of the inner support tube and the inner support barrel, the side wall of the inner support barrel can deform inwards in the process of withdrawing from the inner support tube and the inner support barrel, so that the shaft tube can be conveniently withdrawn from the inner support barrel.
Furthermore, the diameter of the push-pull disc is smaller than the outer diameter of the inner support barrel. The technical effect of the scheme is as follows: the diameter of the push-pull disc is smaller than the inner diameter of the shaft tube, so that the shaft tube can conveniently exit after passing through the push-pull disc.
Furthermore, the second boosting mechanism comprises a boosting strip, and the middle part of the boosting strip is arc-shaped. The technical effect of the scheme is as follows: the middle part of boosting strip and the end face contact of central siphon are convenient for improve the stability when boosting strip promotes the central siphon and withdraws from on the one hand, and the one end that on the other hand promoted the central siphon is convenient for fix a position the position of central siphon through the boosting strip when being located the second brace table.
Drawings
FIG. 1 is a three-dimensional schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic three-dimensional view of a second embodiment of the present invention;
FIG. 3 is a three-dimensional schematic view of an inner supporting mechanism according to a second embodiment of the present invention;
FIG. 4 is a cross-sectional view of an inner support mechanism according to a second embodiment of the present invention;
FIG. 5 is a schematic view of an extrusion block;
FIG. 6 is a schematic view of the extrusion block forming external splines on the shaft tube;
fig. 7 is a schematic view of an axle tube with external splines.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a first supporting table 1, a second supporting table 2, a boosting block 3, an arc-shaped groove 4, an axle tube 5, a boosting strip 6, an extrusion block 7, an inner supporting rod 8, an inner supporting tube 9, an inner supporting barrel 10, a through groove 11, a push-pull rod 12, a push-pull disc 13 and a supporting ring 14.
The first embodiment is as follows:
the first embodiment is substantially as shown in figures 1, 5-7: as shown in fig. 1 spline formula central siphon mould, which comprises a frame, first supporting station 1, a second supporting station 2 and extrusion mechanism, first supporting station 1 and a second supporting station 2 all are the L type, be equipped with first boosting mechanism on the first supporting station 1, first boosting mechanism includes driving piece and boosting piece 3, pneumatic cylinder or cylinder are chooseed for use to the driving piece, select for use the cylinder in this embodiment, the cylinder passes through bolt and 1 fixed connection of first supporting station, boosting piece 3 perhaps passes through flange joint with the output shaft welding of cylinder. Arc-shaped grooves 4 are formed in the first supporting platform 1 and the second supporting platform 2, and the arc-shaped grooves 4 are used for placing shaft tubes 5.
Be equipped with second boosting mechanism on the second brace table 2, second boosting mechanism includes boosting strip 6 and two driving pieces, and is the same with first boosting mechanism, and the cylinder is also chooseed for use to the driving piece, and the cylinder passes through bolt and second brace table 2 fixed connection, and boosting strip 6 is the arc with the output shaft welding of cylinder or through flange joint, the middle part of boosting strip 6.
The extrusion mechanism is positioned between the first supporting table 1 and the second supporting table 2 and comprises three extrusion units, each extrusion unit comprises a driving piece and an arc-shaped extrusion block 7, an external spline shown in figure 5 is welded on the extrusion block 7, the driving piece in each extrusion unit also adopts a cylinder, the cylinder is fixedly connected with the frame through a bolt, and the extrusion block 7 is welded with an output shaft of the cylinder or connected with the output shaft of the cylinder through a flange; as shown in fig. 6, the extrusion blocks 7 can be split into a pipe shape by the driving of the air cylinder.
Of course, in addition, an inner supporting rod 8 can be welded on the second supporting platform 2, the diameter of the inner supporting rod 8 is equal to the inner diameter of the axle tube 5, and the inner supporting rod 8 is located above the arc-shaped groove 4. The cylinder can be selected from SC cylinder of Suideke type.
The specific implementation process is as follows:
after hooks in a factory are used for hooking two ends of an axle tube 5, the axle tube 5 is placed in an arc-shaped groove 4 of a first supporting platform 1 under the action of an electric hoist, and then an air cylinder drives a boosting block 3 to push the axle tube 5 to move, so that one end of the axle tube 5 passes through a space defined by each extrusion block 7 and then is positioned in the arc-shaped groove 4 of a second supporting platform 2; then, each air cylinder drives each extrusion block 7 shown in fig. 5 to move and make the external splines on each extrusion block 7 contact with the outer pipe wall of the shaft pipe 5, each extrusion block 7 is spliced into a pipe shape under the action of the continuous driving of each air cylinder, as shown in fig. 6, the external splines on each extrusion block 7 form external splines on the outer pipe wall of the shaft pipe 5, and the shaft pipe 5 formed with the external splines is shown in fig. 7; then, each extrusion block 7 is reset under the action of each cylinder, then the cylinder drives the boosting strip 6 to push the shaft tube 5 to move in the reverse direction and enable the shaft tube 5 to be positioned in the arc-shaped groove 4 of the first supporting platform 1, and after the shaft tube 5 is moved away by utilizing the hook and the electric hoist, the outer spline forming of the next shaft tube 5 can be carried out.
Example two:
different from the first embodiment, the present embodiment has no inner supporting rod 8, and additionally includes an inner supporting mechanism, as shown in fig. 2, the inner supporting mechanism includes an inner supporting tube 9, an inner supporting barrel 10, and a supporting and pushing unit, the inner supporting tube 9 is welded to the second supporting platform 2, the diameter of the inner supporting tube 9 is smaller than the inner diameter of the shaft tube 5, and the inner supporting tube 9 is located above the arc-shaped groove 4.
As shown in fig. 3, the inner supporting barrel 10 is fixedly sleeved on the inner supporting tube 9, as shown in fig. 4, the inner part of the inner supporting barrel 10 is in a conical shape with a large left end and a small right end, the left end is an opening end of the inner supporting barrel 10, the right end is a bottom end of the inner supporting barrel 10, that is, the inner diameter of the opening end of the inner supporting barrel 10 is larger than the inner diameter of the bottom end of the inner supporting barrel 10; as shown in fig. 3, the side wall of the inner supporting barrel 10 is provided with a plurality of through grooves 11 along the circumferential direction thereof, so as to divide the side wall of the inner supporting barrel 10 into a plurality of pieces, and the side wall of the inner supporting barrel 10 is made of iron sheets.
As shown in fig. 2, 3 and 4, the supporting and pushing unit comprises a driving part, a push-pull rod 12, a push-pull disc 13 and a support ring 14, wherein the driving part is also an air cylinder, the air cylinder is fixedly connected with the rack through a bolt, and the push-pull rod 12 is welded with an output shaft of the air cylinder or connected with the output shaft of the air cylinder through a flange; a through hole is formed in the second support platform 2, and the push-pull rod 12 is connected with the side wall of the through hole in a sliding mode; as shown in fig. 3 and 4, the push-pull disc 13 is welded with the push-pull rod 12, the push-pull disc 13 is positioned at the left end of the inner support tube 9, the support ring 14 is welded with the push-pull disc 13, the support ring 14 can be positioned between the inner support tube 9 and the open end of the inner support barrel 10, and the diameter of the push-pull disc 13 is smaller than the outer diameter of the inner support barrel 10; the push-pull disc 13 and the support ring 14 are cut away in fig. 3 to facilitate viewing of the structure of the push-pull disc 13 and the support ring 14.
After the shaft tube 5 shown in fig. 2 is sleeved on the inner supporting tube 9 and the inner supporting barrel 10, the inner supporting barrel 10 is in contact with the inner side wall of the shaft tube 5 in a natural state, and after the extrusion blocks 7 are closed, external splines are formed on the outer side wall of the shaft tube 5 by extrusion at the position of the inner supporting barrel 10 (only the position of the inner supporting barrel 10, namely the position of the extrusion block 7 on the shaft tube 5, the external splines need to be formed); in the process of extruding the shaft tube 5 by each extrusion block 7, the support ring 14 in fig. 4 supports the open end of the inner supporting barrel 10, and the bottom of the inner supporting barrel 10 supports the bottom end of the inner supporting barrel 10, that is, the open end of the inner supporting barrel 10 and the bottom end of the inner supporting barrel 10 support the inner side wall of the shaft tube 5 when each extrusion block 7 extrudes the shaft tube 5; after extrusion is completed, the inner side wall of the shaft tube 5 is stressed and can be tightly attached to the inner supporting barrel 10; after the push-pull rod 12 is driven by the cylinder to push the push-pull disc 13 to move leftwards and drive the support ring 14 to withdraw from between the open ends of the inner supporting tube 9 and the inner supporting barrel 10 as shown in fig. 4, the side wall of the inner supporting barrel 10 can deform inwards in the process that the shaft tube 5 withdraws from the inner supporting tube 9 and the inner supporting barrel 10 under the action of the boosting strip 6, so that the shaft tube 5 conveniently withdraws from the inner supporting barrel 10.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. Spline formula central siphon mould, its characterized in that: including frame, first supporting bench, second brace table and extrusion mechanism, be equipped with first boosting mechanism on the first supporting bench, be equipped with second boosting mechanism on the second brace table, extrusion mechanism is located between first supporting bench and the second brace table, and extrusion mechanism includes a plurality of extrusion units, and every extrusion unit all includes the driving piece and is curved extrusion piece, is equipped with the external splines on the extrusion piece, and each driving piece can drive each extrusion piece amalgamation and be the tubulose.
2. The spline type axle tube mold according to claim 1, wherein: arc-shaped grooves are formed in the first supporting platform and the second supporting platform.
3. The spline type axle tube mold according to claim 2, wherein: an inner supporting rod is fixedly connected to the second supporting table, the diameter of the inner supporting rod is equal to the inner diameter of the shaft tube, and the inner supporting rod is located above the arc-shaped groove.
4. The spline type axle tube mold according to claim 2, wherein: the inner supporting mechanism comprises an inner supporting pipe, an inner supporting barrel and a supporting and pushing unit, the inner supporting pipe is fixedly connected with the second supporting table, the diameter of the inner supporting pipe is smaller than the inner diameter of the shaft pipe, and the inner supporting pipe is positioned above the arc-shaped groove; the inner supporting barrel is fixedly sleeved on the inner supporting pipe, the inner part of the inner supporting barrel is conical, the inner diameter of the opening end of the inner supporting barrel is larger than the inner diameter of the bottom end of the inner supporting barrel, and the inner supporting barrel is provided with a plurality of through grooves along the circumferential direction; the supporting and pushing unit comprises a push-pull rod, a push-pull disc and a supporting ring, the push-pull rod is connected with the second supporting table in a sliding mode, the push-pull disc is fixedly connected with the push-pull rod and located at the free end of the inner supporting pipe, the supporting ring is fixedly connected with the push-pull disc, and the supporting ring can be located between the inner supporting pipe and the opening end of the inner supporting barrel.
5. The spline type axle tube mold according to claim 4, wherein: the diameter of the push-pull disc is smaller than the outer diameter of the inner support barrel.
6. The spline type axle tube mold according to any one of claims 3 or 4, wherein: the second boosting mechanism comprises a boosting strip, and the middle part of the boosting strip is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122086901.5U CN215902570U (en) | 2021-08-31 | 2021-08-31 | Spline type axle tube mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122086901.5U CN215902570U (en) | 2021-08-31 | 2021-08-31 | Spline type axle tube mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215902570U true CN215902570U (en) | 2022-02-25 |
Family
ID=80293148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122086901.5U Active CN215902570U (en) | 2021-08-31 | 2021-08-31 | Spline type axle tube mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215902570U (en) |
-
2021
- 2021-08-31 CN CN202122086901.5U patent/CN215902570U/en active Active
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