CN206605208U - A kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits - Google Patents
A kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits Download PDFInfo
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- CN206605208U CN206605208U CN201720250202.0U CN201720250202U CN206605208U CN 206605208 U CN206605208 U CN 206605208U CN 201720250202 U CN201720250202 U CN 201720250202U CN 206605208 U CN206605208 U CN 206605208U
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- cone table
- splined shaft
- sleeve body
- end cap
- right semi
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Abstract
The utility model discloses a kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits, including outer sleeve body, the lower body positioned at outer sleeve body inner bottom part, the body one on lower body top and the hollow end cap being arranged at the top of outer sleeve body；The upper sleeve body that can be moved up and down is provided with end cap, back-moving spring one is additionally provided between upper sleeve body one end and end cap；One point of body is left and right half-conical stage body, back-moving spring two is provided between left and right half-conical stage body, auxiliary mould also includes being arranged on the body two inside outer sleeve body, body two can be moved up and down, so as to utilize body two and left and right semicircular platforms mates, so that can be in holding or separated state and when being in holding state between left and right half-conical stage body between left and right half-conical stage body, the inner chamber of left and right half-conical stage body forms positioning chamber, and the interior diameter and the overall diameter of splined shaft one end of positioning chamber match.The utility model can guarantee that axiality when splined shaft press-fits.
Description
Technical field
The utility model is related to auxiliary mould when a kind of splined shaft press-fits, more particularly to one kind can guarantee that splined shaft press-fits
When axiality auxiliary mould.
Background technology
EPS is electric boosting steering system, is the developing direction of automobile steering system.The system is direct by electric boosted machine
Power steering is provided, power steering oil pump necessary to eliminating hydraulic power steering system, flexible pipe, hydraulic oil, conveyer belt and
Loaded on the belt pulley on engine, energy is both saved, environment is protected again.In addition, also have that adjustment is simple, assembling flexibly and
The characteristics of power steering being provided in several situations.
There is a secondary twiot arm structure in EPS, the structure function is the angle change produced by torsion bar elastic deformation
Controller is sent to by sensor, allow EPS provide power-assisted, while twiot arm structure steering wheel return just in the state of play
Important function.Torque arm in the twiot arm structure is, by press-fiting process, to press-fit from one end of the input shaft bottom of tubulose
Into input shaft bottom, as shown in figure 1, after torque arm 1 and input shaft bottom 2 have press-fited, in input shaft bottom 1 in addition
One end also needs to press-fit a splined shaft 3.
Axiality when press-fiting between splined shaft and input shaft bottom is one of important factor in order of EPS properties of product,
But easily offset between splined shaft and input shaft bottom during press-fiting in the prior art, so during press-fiting just
It cannot be guaranteed that the axiality between splined shaft and input shaft bottom reaches design requirement, so as to reduce the quality of production of product.
By retrieval, patent document same as the present application or similar is not found temporarily.
To sum up, a kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits how is designed so that can guarantee that when press-fiting
Axiality between splined shaft and input shaft bottom reaches design requirement, and the quality of production for improving product is the technology for being badly in need of solving
Problem.
Utility model content
Technical problem to be solved in the utility model is to be can guarantee that for defect present in prior art there is provided one kind
The auxiliary mould of axiality when splined shaft press-fits so that can guarantee that the axiality between splined shaft and input shaft bottom reaches when press-fiting
To design requirement, the quality of production of product is improved.
In order to solve the above technical problems, technical solution adopted in the utility model is：One kind can guarantee that splined shaft press-fits
When axiality auxiliary mould, it includes being arranged on outer sleeve body on workbench, is arranged on workbench and positioned at overcoat
The lower body of internal bottom, it is arranged on the body one inside outer sleeve body and on the top of lower body and is arranged on outer sleeve body top
Hollow end cap in portion；The upper sleeve body that can be moved up and down along end cap cavity is provided with the cavity of end cap, upper sleeve body is used for
The fixed input shaft bottom and interior diameter of upper sleeve body inner chamber and the overall diameter of input shaft bottom match, in one end of upper sleeve body and
The back-moving spring one of upper sleeve body reset movement can be made by being additionally provided between end cap；Body one is hollow circular cone stage body, along body
One point of body is left semicircle cone table and right semi-circle cone table by one axis, left semicircle cone table and right semi-circle cone table it
Between be provided with back-moving spring two, the auxiliary mould that can guarantee that axiality when splined shaft press-fits also includes being arranged in outer sleeve body
Portion and the body two of circumferential position positioned at left semicircle cone table and right semi-circle cone table, the outer peripheral face of body two is the face of cylinder,
The inner chamber of body two is set to inner conical surface, and the outer peripheral face of body two is in contact with the inner peripheral surface of outer sleeve body, the inner conical surface of body two
It is in contact with the periphery conical surface of left semicircle cone table and right semi-circle cone table, body two can be along the axial direction of body two down or upward
It is mobile, so as to be engaged using the inner conical surface of body two with the periphery conical surface of left semicircle cone table and right semi-circle cone table so that
Back-moving spring two is compressed or resetted by close to each other move in the top of left semicircle cone table and right semi-circle cone table along lower body
Top of restoring force effect the bottom left half-conical stage body and right semi-circle cone table of spring two along lower body, which is located remotely from each other, moves, so that
So that can be in holding or separated state and when left semicircle cone table and the right side between left semicircle cone table and right semi-circle cone table
When being in holding state between half-conical stage body, the inner chamber of left semicircle cone table and the inner chamber of right semi-circle cone table form positioning
Chamber, the interior diameter and the overall diameter of splined shaft one end of positioning chamber match.
It is preferred that, the auxiliary mould that can guarantee that axiality when splined shaft press-fits also includes being arranged on workbench
Lifting cylinder body, is provided with side plate one and side plate two on the piston rod of lifting cylinder body, connecting rod one is connected with side plate one, in side
Connecting rod two is connected with plate two, waist typed through hole one and waist typed through hole two, one end of connecting rod one are provided with the outer peripheral face of outer sleeve body
Affixed with side plate one, the other end of connecting rod one is affixed through the side of waist typed through hole one and body two, one end of connecting rod two and
Side plate two is affixed, and the other end of connecting rod two is affixed through the other side of waist typed through hole two and body two；In lifting cylinder body
Under effect, axial direction of the body two along body two can be driven down or be moved upwardly by.
It is preferred that, it is U-shaped along the section of the end cap of outer sleeve body axial direction, spline is provided with the U-shaped bottom of end cap
The through hole that axle one end passes through, is provided with cover flange on the outer peripheral face of end cap, is screwed into by connecting screw through cover flange
Onto the top of outer sleeve body, so that end cap is connected on the top of outer sleeve body；Back-moving spring one is arranged on one end of upper sleeve body
Between the inner bottom part of the U-shaped bottom of end cap, restraining position ring block is set on the top of end cap, other the one of spacing ring and upper sleeve body
End is in contact so as to which upper sleeve body is spacing in the inner chamber of end cap.
It is preferred that, left semicircle cone table end face and end cap U-shaped bottom outer bottom between and right semi-circle cone
Holddown spring is provided between the end face of stage body and the outer bottom of the U-shaped bottom of end cap.
It is preferred that, the lower body includes ring body, the hollow column body being arranged on ring body top surface and is arranged on ring body
Hollow lower prop on bottom surface；The mounting hole matched with lower prop is provided with workbench, by the lower prop of lower body
It is inserted into the mounting hole on workbench so that the ring body of lower body is in contact with workbench, ring body is passed through by screw
It is screwed on workbench, so that lower body is connected on workbench.
It is preferred that, guide rail bar one and guide rail bar two are provided with the top surface of the column body, in left semicircle cone table
The guide groove one matched with guide rail bar one is provided with bottom surface, is provided with the bottom surface of right semi-circle cone table and guide rail bar two-phase
The guide groove two of matching, is engaged with guide rail bar one by guide groove one and is engaged by guide groove two with guide rail bar two so that left
The top surface of half-conical stage body and right semi-circle frustum physical efficiency along column body close to each other can be moved or be located remotely from each other and move.
It is preferred that, positioning cylinder is additionally provided with the lower prop intracoelomic cavity positioned at body of trapping, in the upper surface of positioning cylinder
On be provided with the detent matched with the other end of splined shaft, detent is circular groove；Other the one of splined shaft
End is inserted into the detent of positioning cylinder and the other end of outer peripheral face of splined shaft is in contact with the inner peripheral surface of detent.
The beneficial effects of the utility model are：The utility model is engaged when press-fiting using body one and body two,
The left semicircle cone table of body one and the positioning chamber of right semi-circle cone table formation is held splined shaft tightly and is fixed, recycle
Press applies active force to upper sleeve body so that upper sleeve body drives the torque arm that has press-fited of early stage together with input shaft bottom towards being consolidated
Surely the splined shaft lived is moved down, and most torque arm, input shaft bottom and splined shaft are press fit together at last, so that the utility model
It can guarantee that the axiality between splined shaft and input shaft bottom reaches design requirement when press-fiting, improve the quality of production of product.
By setting the structure between spacing ring, upper sleeve body and end cap so that the utility model is easy to the dismounting of upper sleeve body, pressure is improved
Fill efficiency.Splined shaft is accurately positioned by setting up positioning cylinder in the lower prop intracoelomic cavity positioned at body of trapping, one can be entered
Step improves axiality when press-fiting.By setting holddown spring between end cap, left semicircle cone table and right semi-circle cone table, protect
Demonstrate,prove in work is press-fited, left semicircle cone table and right semi-circle frustum physical efficiency are close on the top of lower body all the time.By upper
Guide rail bar on the top surface of cylinder is engaged with the guide groove on the bottom surface of left semicircle cone table and the bottom surface of right semi-circle cone table,
It can prevent left semicircle cone table and right semi-circle cone table from being twisted in movement, it is ensured that to press-fit being normally carried out for work.
Brief description of the drawings
Fig. 1 is schematic diagram when splined shaft to be press fit into input shaft bottom other end；
Fig. 2 is the dimensional structure diagram of the utility model embodiment 1；
Fig. 3 is the main structure diagram of the utility model embodiment 1；
Fig. 4 is the cross section structure diagram of the utility model embodiment 1 along outer sleeve body axial direction；
Fig. 5 is that the sectional structure of the utility model embodiment 1 along outer sleeve body axial direction when press-fiting to splined shaft is illustrated
Figure；
Fig. 6 is the dimensional structure diagram of body one in the utility model embodiment 1；
Fig. 7 is the partial structural diagram in Fig. 4 at end cap；
Fig. 8 is the mplifying structure schematic diagram in A portions in Fig. 2；
Fig. 9 is removes after positioning cylinder in the utility model embodiment 1, along the sectional structure of the lower body of lower body axial direction
Schematic diagram；
Figure 10 is the dimensional structure diagram of positioning cylinder in the utility model embodiment 1；
Figure 11 is the mplifying structure schematic diagram in B portions in Fig. 4；
Figure 12 is the broken section structural representation of the utility model embodiment 2 at end cap and along outer sleeve body axial direction
Figure；
Figure 13 is the dimensional structure diagram of body one in the utility model embodiment 3；
In figure：1. torque arm, 2. input shaft bottoms, 3. splined shafts, 4. workbenches, 411. mounting holes, 5. overcoats
Body, 511. waist typed through hole one, 512. waist typed through hole two, 6. times bodies, 611. ring bodies, 612. column bodies, 613. lower props
Body, 7. bodies one, 711. left semicircle cone tables, 712. right semi-circle cone tables, 8. end caps, 811. cover flanges, on 9.
Body, 10. back-moving springs one, 11. back-moving springs two, 12. bodies two, 13. lifting cylinder bodies, 14. side plates one, 15. sides
Plate two, 16. connecting rods one, 17. connecting rods two, 18. through holes, 19. connecting screws, 20. spacing rings, 21. screws, 22. positioning
Cylinder, 221. detents, 23. holddown springs, 24. guide grooves one, 25. guide grooves two.
Embodiment
Further details of elaboration is done to the technical solution of the utility model with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：As shown in Figures 2 to 6, a kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits, it includes
The outer sleeve body 5 being fixed on workbench 4, the lower body 6 for being fixed on workbench 4 and being located at the inner bottom part of outer sleeve body 5, setting
In the inside of outer sleeve body 5 and body 1 and the hollow end cap being arranged on the top of outer sleeve body 5 on the top of lower body 6
8；The upper sleeve body 9 that can be moved up and down along the cavity of end cap 8 is provided with the cavity of end cap 8, upper sleeve body 9 is used to fix input shaft
The overall diameter of the interior diameter and input shaft bottom 2 of bottom 2 and the inner chamber of upper sleeve body 9 matches, and lower body 6 is used to fix splined shaft 3,
The back-moving spring 1 of the reset movement of upper sleeve body 9 can be made by being additionally provided between one end of upper sleeve body 9 and end cap 8；Body 1 is
Hollow circular cone stage body, the small end surface position above of body 1, the big end surface of body 1 is located at lower position, edge
One 7 points by body of the axis of body 1 is left semicircle cone table 711 and right semi-circle cone table 712, in left semicircle cone table 711
Back-moving spring 2 11, the backman that can guarantee that axiality when splined shaft press-fits are provided between right semi-circle cone table 712
Dress also includes being arranged on the inside of outer sleeve body 5 and positioned at left semicircle cone table 711 and the set of the circumferential position of right semi-circle cone table 712
Body 2 12, the outer peripheral face of body 2 12 is the face of cylinder, and the inner chamber of body 2 12 is set to inner conical surface, the outer peripheral face of body 2 12 with
The inner peripheral surface of outer sleeve body 5 is in contact, the inner conical surface of body 2 12 and left semicircle cone table 711 and right semi-circle cone table 712 it is outer
All conical surfaces are in contact, and body 2 12 down or can be moved upwardly by along the axial direction of body 2 12, so as to utilize the inner cone of body 2 12
Face is engaged with the periphery conical surface of left semicircle cone table 711 and right semi-circle cone table 712 so that left semicircle cone table 711 and the right side
Close to each other move in top of the half-conical stage body 712 along lower body 6 is compressed back-moving spring 2 11 or in back-moving spring 2 11
Restoring force effect bottom left half-conical stage body 711 and top of the right semi-circle cone table 712 along lower body 6 are located remotely from each other and moved, so that
So that can be in holding or separated state and when left semicircle frustum between left semicircle cone table 711 and right semi-circle cone table 712
When being in holding state between body 711 and right semi-circle cone table 712, the inner chamber of left semicircle cone table 711 and right semi-circle cone table
712 inner chamber forms positioning chamber, and the interior diameter and the overall diameter of the one end of splined shaft 3 of positioning chamber match.
Before press-fiting, splined shaft 3 is first sequentially passed through into upper sleeve body 9 and body 1 is inserted into lower body 6, after insertion, spline
One end of axle 3 exposes to body 1, and now back-moving spring 2 11 is in normal condition；Then the torque arm 1 early stage press-fited
Picked up together with input shaft bottom 2, then the other end of input shaft bottom 2 is vertically inserted into the inner chamber of upper cover body 9 down
In, outward flange is provided with the outer peripheral face of input shaft bottom 2, after being inserted into upper cover body 9 so that input shaft bottom 2
Outward flange is in contact with upper cover body 9, so that the torque arm 1 that early stage has press-fited is placed in upper cover body 9 with input shaft bottom 2,
So that the torque arm 1 that early stage has press-fited forms one with input shaft bottom 2 and upper cover body 9.When press-fiting, body 2 12 is first controlled
Move down, the periphery conical surface using the inner conical surface and left semicircle cone table 711 and right semi-circle cone table 712 of body 2 12 matches
Close so that the top of left semicircle cone table 711 and right semi-circle cone table 712 along lower body 6 is close to each other to move in holding shape
State, one end holding that will expose to the splined shaft 3 of lower body 6 is fixed, while back-moving spring 2 11 is compressed, is then recycled
The pressure head of press（Not shown in figure）Push lower body 6 so that lower body 6 drive torque arm 1 together with input shaft bottom 2 down
Mobile, the one end that will expose to the splined shaft 3 of body one is press fit into the other end of input shaft bottom 2 so that torque arm 1,
Input shaft bottom 2 and splined shaft 3 form one, and during lower body 6 is moved down, back-moving spring 1 is compressed.When press-fiting
After good, then body 2 12 is controlled to be moved upwardly by, under the restoring force effect of back-moving spring 2 12, left semicircle cone table 711 and the right side
Top of the half-conical stage body 712 along lower body 6, which is located remotely from each other, moves in separated position, unclamps the holding to splined shaft 3, then control
The pressure head of moulding press is moved up, and under the restoring force effect of back-moving spring 1, upper sleeve body 9 drives the torque arm 1 press-fited, input
Axle bottom 2 and splined shaft 3 are moved up together, after moving into place, then by torque arm 1, input shaft bottom 2 and splined shaft 3 together from
Taken out in upper sleeve body 9.The present embodiment is engaged when press-fiting using body one and body two so that left the half of body one
Circular cone stage body and the positioning chamber of right semi-circle cone table formation, which can hold splined shaft tightly, to be fixed, and recycles press to apply upper sleeve body
Active force so that upper sleeve body is driven under the torque arm splined shaft that court is fixed together with input shaft bottom that early stage has press-fited
Move, most torque arm, input shaft bottom and splined shaft are press fit together at last, so that can guarantee that spline when the present embodiment press-fits
Axiality between axle and input shaft bottom reaches design requirement, improves the quality of production of product.In the present embodiment, reset
Spring 1 and back-moving spring 2 11 use stage clip.Back-moving spring 1 is provided with one, and its is vertical to be arranged on upper sleeve body 9
Between one end and end cap 8, back-moving spring 2 11 is provided with four, and four back-moving springs 2 11 are connected to left half with horizontality
Between circular cone stage body 711 and right semi-circle cone table 712.
As shown in Fig. 2, Fig. 3 and Fig. 7, the auxiliary mould that can guarantee that axiality when splined shaft press-fits also includes being arranged on
Lifting cylinder body 13 on workbench 4, herein, lifting cylinder body 13 can use cylinder or oil cylinder, in the piston of lifting cylinder body 13
Side plate 1 and side plate 2 15 are provided with bar, outer sleeve body 5 is located at the position between side plate 1 and side plate 2 15, in side plate one
Connecting rod 1 is connected with 14, connecting rod 2 17 is connected with side plate 2 15, waist typed through hole is provided with the outer peripheral face of outer sleeve body 5
One 511 and waist typed through hole 2 512, one end of connecting rod 1 and side plate 1 are affixed, and the other end of connecting rod 1 passes through waist type
The side of through hole 1 and body 2 12 is affixed, and one end of connecting rod 2 17 and side plate 2 15 are affixed, the other end of connecting rod 2 17
Other side through waist typed through hole 2 512 and body 2 12 is affixed；In the presence of lifting cylinder body 13, body 2 12 can be driven
Down or it is moved upwardly by along the axial direction of body 2 12.The present embodiment just can be controlled conveniently by controlling lifting cylinder body to work
Held tightly or separated state between left semicircle cone table and right semi-circle cone table processed, so as to improve the processing efficiency of product.
In the present embodiment, the axial direction of waist typed through hole 1 and waist typed through hole 2 512 along outer sleeve body 5 is separately positioned on the relative of outer sleeve body 5
On both sides, connecting rod 1 and connecting rod 2 17 are set along horizontality.
As shown in Figure 7 and Figure 8, it is U-shaped along the section of the end cap 8 of outer sleeve body axial direction, in the U-shaped bottom of end cap 8
The through hole 18 passed through for splined shaft one end is provided with, cover flange 811, cover flange 811 are provided with the outer peripheral face of end cap 8
It is integral with end cap 8, is screwed into by connecting screw 19 through cover flange 811 on the top of outer sleeve body 5, so that by end cap
8 are connected on the top of outer sleeve body 5；Back-moving spring 1 is arranged on the interior bottom of one end of upper sleeve body 9 and the U-shaped bottom of end cap 8
Between portion, restraining position ring block 20 is set on the top of end cap 8, spacing ring 20 is connected to by screw 21 on the top of end cap 8, limited
Position ring 20 is in contact with the other end of upper sleeve body 9 so as to which upper sleeve body 9 is spacing in the inner chamber of end cap 8.On being so easy to
The dismounting of body, when needing to dismount upper sleeve body, first takes out spacing ring as long as unclamping screw, then by upper sleeve body from end
Replacing is taken out in the inner chamber of lid, improves and press-fits efficiency.
As shown in Figures 9 to 11, the lower body 6 include ring body 611, be arranged on it is hollow upper on the top surface of ring body 611
Cylinder 612 and the hollow lower prop 613 being arranged on the bottom surface of ring body 611；It is provided with workbench 4 and the phase of lower prop 613
The mounting hole 411 of matching, the lower prop 613 of lower body 6 is inserted into the mounting hole 411 on workbench so that lower body
Ring body 611 be in contact with workbench 4, pass through screw（Not shown in figure）It is screwed into through ring body on workbench 4, so that
Lower body 6 is connected on workbench 4, is so easy to the dismounting of lower body.
Positioning cylinder 22 is additionally provided with the inner chamber of lower prop 613 positioned at body of trapping, in the upper surface of positioning cylinder 22
On be provided with the detent 221 matched with the other end of splined shaft, detent 221 is circular groove；Splined shaft
Other end is inserted into the detent 221 of positioning cylinder and the other end of outer peripheral face of splined shaft and detent 221
Inner peripheral surface is in contact.Splined shaft is accurately positioned by setting up positioning cylinder, axiality when press-fiting can be further improved.
Embodiment 2：As shown in figure 12, compared with Example 1, difference is：In the top end face and end cap of body 1
Holddown spring 23, the i.e. top end face in left semicircle cone table and the U-shaped bottom of end cap are provided between the outer bottom of 8 U-shaped bottom
Between the outer bottom in portion and right semi-circle cone table top end face and end cap U-shaped bottom outer bottom between be provided with pressure
Tight spring.One active force pushed is consistently formed to left semicircle cone table and right semi-circle cone table using holddown spring, from guarantor
Demonstrate,prove in work is press-fited, left semicircle cone table and right semi-circle frustum physical efficiency are close on the top of lower body all the time.In this reality
Apply in example, holddown spring 23 is stage clip, and four are provided with altogether.
Embodiment 3：As shown in figure 13, compared with Example 1, difference is：Set on the top surface of the column body
It is equipped with guide rail bar one and guide rail bar two（Not shown in figure）, it is provided with the bottom surface of left semicircle cone table 711 and guide rail bar one
The guide groove 1 matched, is provided with the guide groove 2 25 matched with guide rail bar two on the bottom surface of right semi-circle cone table 712, leads to
Cross guide groove one to be engaged and be engaged with guide rail bar two by guide groove two with guide rail bar one so that left semicircle cone table and right half
Top surface of the frustum of a cone physical efficiency along column body close to each other can be moved or be located remotely from each other and move.So, left semicircle cone table can be prevented
Twisted with right semi-circle cone table in movement, it is ensured that press-fit being normally carried out for work.
To sum up, the utility model is engaged when press-fiting using body one and body two so that the left semicircle cone of body one
Stage body and the positioning chamber of right semi-circle cone table formation, which can hold splined shaft tightly, to be fixed, and recycles press to act on upper sleeve body application
Power so that the torque arm that upper sleeve body drives early stage to press-fit is moved down together with input shaft bottom towards the splined shaft being fixed, most
Torque arm, input shaft bottom and splined shaft are press fit together at last, so that can guarantee that splined shaft when the utility model press-fits
Axiality between input shaft bottom reaches design requirement, improves the quality of production of product.By setting spacing ring, upper set
Structure between body and end cap so that the utility model is easy to the dismounting of upper sleeve body, improves and press-fits efficiency.By under
Positioning cylinder is set up in the lower prop intracoelomic cavity of body to be accurately positioned splined shaft, can further improve coaxial when press-fiting
Degree.By setting holddown spring between end cap, left semicircle cone table and right semi-circle cone table, it is ensured that in work is press-fited,
Left semicircle cone table and right semi-circle frustum physical efficiency are close on the top of lower body all the time.Pass through the guide rail on the top surface of column body
Bar is engaged with the guide groove on the bottom surface of left semicircle cone table and the bottom surface of right semi-circle cone table, can prevent left semicircle cone table
Twisted with right semi-circle cone table in movement, it is ensured that press-fit being normally carried out for work.
Above example is only for illustration of the utility model, rather than to limitation of the present utility model, relevant technical field
Technical staff in the case where not departing from spirit and scope of the present utility model, can also make a variety of changes or convert, because
This all equivalent technical scheme should also belong to protection domain of the present utility model, and protection domain of the present utility model should be by
Each claim is limited.
Claims (7)
1. a kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits, it is characterised in that：Including being arranged on workbench
Outer sleeve body, be arranged on workbench and the lower body positioned at outer sleeve body inner bottom part, be arranged on inside outer sleeve body and be located under
Body one and the hollow end cap being arranged at the top of outer sleeve body on the top of body；Being provided with the cavity of end cap can edge
The upper sleeve body that end cap cavity is moved up and down, upper sleeve body is used for interior diameter and the input for fixing input shaft bottom and upper sleeve body inner chamber
The overall diameter of axle bottom matches, and the reset of upper sleeve body reset movement can be made by being additionally provided between one end of upper sleeve body and end cap
Spring one；Body one is hollow circular cone stage body, by one point of body is left semicircle cone table and right semi-circle along the axis of body one
Cone table, is provided with back-moving spring two between left semicircle cone table and right semi-circle cone table, described to can guarantee that splined shaft press-fits
When axiality auxiliary mould also include being arranged on inside outer sleeve body and positioned at the outer of left semicircle cone table and right semi-circle cone table
The body two of all positions, the outer peripheral face of body two is the face of cylinder, and the inner chamber of body two is set to inner conical surface, the outer peripheral face of body two
It is in contact with the inner peripheral surface of outer sleeve body, the periphery conical surface phase of the inner conical surface and left semicircle cone table and right semi-circle cone table of body two
Contact, body two down or can be moved upwardly by along the axial direction of body two, so as to utilize the inner conical surface and left semicircle frustum of body two
The periphery conical surface of body and right semi-circle cone table is engaged so that the top of left semicircle cone table and right semi-circle cone table along lower body
Back-moving spring two is compressed or acts on bottom left half-conical stage body and right semi-circle in the restoring force of back-moving spring two by movement close to each other
Top of the cone table along lower body, which is located remotely from each other, moves, so that can be between left semicircle cone table and right semi-circle cone table
Hold tightly or separated state and when between left semicircle cone table and right semi-circle cone table be in holding state when, left semicircle cone table
Inner chamber and the inner chamber of right semi-circle cone table form positioning chamber, the interior diameter of positioning chamber and the overall diameter phase of splined shaft one end
Match somebody with somebody.
2. the auxiliary mould according to claim 1 that can guarantee that axiality when splined shaft press-fits, it is characterised in that：The energy
Ensure that the auxiliary mould of axiality when splined shaft press-fits also includes the lifting cylinder body being arranged on workbench, in lifting cylinder body
Side plate one and side plate two are provided with piston rod, connecting rod one is connected with side plate one, connecting rod two is connected with side plate two,
Waist typed through hole one and waist typed through hole two are provided with the outer peripheral face of outer sleeve body, one end of connecting rod one and side plate one are affixed, connecting rod one
Other end through waist typed through hole one and body two side it is affixed, one end of connecting rod two and side plate two are affixed, connecting rod two it is another
Outer one end is affixed through the other side of waist typed through hole two and body two；In the presence of lifting cylinder body, the edge of body two can be driven
The axial direction of body two down or is moved upwardly by.
3. the auxiliary mould according to claim 1 that can guarantee that axiality when splined shaft press-fits, it is characterised in that：Along overcoat
The section of the end cap of body axial direction is U-shaped, and the through hole that splined shaft one end passes through is provided with the U-shaped bottom of end cap, at end
Cover flange is provided with the outer peripheral face of lid, is screwed into by connecting screw through cover flange on the top of outer sleeve body, so that
End cap is connected on the top of outer sleeve body；Back-moving spring one is arranged on one end of upper sleeve body and the interior bottom of the U-shaped bottom of end cap
Between portion, restraining position ring block is set on the top of end cap, spacing ring is in contact with the other end of upper sleeve body so as to by upper sleeve body
It is spacing in the inner chamber of end cap.
4. the auxiliary mould according to claim 3 that can guarantee that axiality when splined shaft press-fits, it is characterised in that：Left half
Between the end face of circular cone stage body and the outer bottom of the U-shaped bottom of end cap and right semi-circle cone table end face and end cap it is U-shaped
Holddown spring is provided between the outer bottom of bottom.
5. the auxiliary of axiality when can guarantee that splined shaft press-fits according to any one claim in Claims 1-4
Frock, it is characterised in that：The lower body includes ring body, the hollow column body being arranged on ring body top surface and is arranged on ring body
Hollow lower prop on bottom surface；The mounting hole matched with lower prop is provided with workbench, by the lower prop of lower body
It is inserted into the mounting hole on workbench so that the ring body of lower body is in contact with workbench, ring body is passed through by screw
It is screwed on workbench, so that lower body is connected on workbench.
6. the auxiliary mould according to claim 5 that can guarantee that axiality when splined shaft press-fits, it is characterised in that：Described
Guide rail bar one and guide rail bar two are provided with the top surface of column body, is provided with the bottom surface of left semicircle cone table and guide rail bar one
The guide groove one matched, the guide groove two matched with guide rail bar two is provided with the bottom surface of right semi-circle cone table, passes through guide groove
One is engaged with guide rail bar one and is engaged by guide groove two with guide rail bar two so that left semicircle cone table and right semi-circle frustum
Top surface of the physical efficiency along column body close to each other can be moved or be located remotely from each other and move.
7. the auxiliary mould according to claim 5 that can guarantee that axiality when splined shaft press-fits, it is characterised in that：Positioned at
Positioning cylinder is additionally provided with the lower prop intracoelomic cavity of lower body, is provided with the upper surface of positioning cylinder with splined shaft in addition
The detent that one end matches, detent is circular groove；The other end of splined shaft is inserted into the positioning of positioning cylinder
In groove and the other end of outer peripheral face of splined shaft is in contact with the inner peripheral surface of detent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720250202.0U CN206605208U (en) | 2017-03-15 | 2017-03-15 | A kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720250202.0U CN206605208U (en) | 2017-03-15 | 2017-03-15 | A kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206605208U true CN206605208U (en) | 2017-11-03 |
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ID=60165337
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720250202.0U Active CN206605208U (en) | 2017-03-15 | 2017-03-15 | A kind of auxiliary mould that can guarantee that axiality when splined shaft press-fits |
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| Country | Link |
|---|---|
| CN (1) | CN206605208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247528A (en) * | 2020-10-22 | 2021-01-22 | 湖南工学院 | Electric steering gear torsion bar press fitting tool |
-
2017
- 2017-03-15 CN CN201720250202.0U patent/CN206605208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247528A (en) * | 2020-10-22 | 2021-01-22 | 湖南工学院 | Electric steering gear torsion bar press fitting tool |
| CN112247528B (en) * | 2020-10-22 | 2021-10-08 | 湖南工学院 | Electric steering gear torsion bar press fitting tool |
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Address after: 412000 No. 287 Taizi Road, Lusong District, Zhuzhou City, Hunan Province Patentee after: Zhuzhou Xiangyun Zhihang Technology Development Co., Ltd. Address before: 412007 No. 9 C-16 Dalu Factory Building, Tianyuan District, Zhuzhou City, Hunan Province Patentee before: Zhuzhou Weizhi run science and Technology Development Co. |
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