CN206047121U - Top tip structure - Google Patents

Top tip structure Download PDF

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Publication number
CN206047121U
CN206047121U CN201620925654.XU CN201620925654U CN206047121U CN 206047121 U CN206047121 U CN 206047121U CN 201620925654 U CN201620925654 U CN 201620925654U CN 206047121 U CN206047121 U CN 206047121U
Authority
CN
China
Prior art keywords
dead head
tip structure
structure according
out against
skewback
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620925654.XU
Other languages
Chinese (zh)
Inventor
焦尚才
李勤勤
仇谷峰
倪广金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING HIGH-PRECISION TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
BEIJING HIGH-PRECISION TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING HIGH-PRECISION TECHNOLOGY DEVELOPMENT Co Ltd filed Critical BEIJING HIGH-PRECISION TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201620925654.XU priority Critical patent/CN206047121U/en
Application granted granted Critical
Publication of CN206047121U publication Critical patent/CN206047121U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of top tip structure, the top tip structure includes dead head (1), top (2) on the dead head (1) and for supporting the tail end of top (2) to hold out against part, top (2) can on dead head (1) sliding axially along top (2), the tail end of top (2) is connected with the outfan for holding out against part, and the part that holds out against can adjust the support force to top (2).The top tip structure that this utility model is provided can be when slender axles be processed so that slender axles freely can be extended after being heated, it is ensured that the machining accuracy of slender axles.

Description

Top tip structure
Technical field
This utility model is related to machine tool mechanical processing technique field, more particularly to one kind is applied to thin and long shafts part processing When Auxiliary support top tip structure.
Background technology
Slender axles are one of strength members on machine, for the driving parts arranged in machine, driving parts is had really Fixed operating position, and transmitting movement and torque.When the length of axle is more than 20-25 with the ratio of diameter, the axle is referred to as thin Major axis.During processing, due to its poor rigidity, in the presence of cutting force and heat in metal cutting, slender axles are easy to slender axles Flexural deformation is produced, the accuracy of cutter and part relative motion is destroyed, in producing the slender axles for processing Between the thin shape in thick, two, have a strong impact on the machining accuracy of part.After slender axles produce flexural deformation simultaneously, can also cause work Process system vibrates, so as to affect the roughness of part.
Therefore, in slender shaft turning, need to select suitable method of clamping, to increase the rigidity of slender axles, reduce and add The vibration in man-hour.Conventional slender axles method of clamping has two top clampings, the top clamping of chuck.The mode of two top clampings is positioned Accurately, it is easily guaranteed that the axiality of workpiece is required, but the method processing rigidity is poor, it is desirable to which pressure is appropriate, otherwise bends Deformation is big, and easily produces vibration.The mode of the top clamping of chuck is that one end of slender axles is clamped with chuck, and the other end is used Top to hold out against, but if top push up too tight, workpiece cutting time-varying thermal stretching is obstructed, and will cause slender axles bending, if Top top get Tai Song, then less stable.Therefore, above two slender axles method of clamping is required to repeatedly tune in process Two top positions are solved, to ensure the rigidity of slender axles.
But using reconciling top position in process, not only cumbersome, working strength is high, and be difficult to by Top pressure is adjusted to appropriate state.
Utility model content
The purpose of this utility model is to provide a kind of top tip structure, slender axles can be made to be heated when slender axles are processed After freely can extend, it is ensured that the machining accuracy of slender axles.
To achieve these goals, this utility model provide a kind of top tip structure, the top tip structure include dead head, Top on the dead head and for supporting the part that holds out against of the top tail end, it is described it is top can be in dead head On slide axially along top, the top tail end is connected with the outfan for holding out against part, and the part that holds out against can be adjusted Section is to the top support force.
Preferably, for cylinder, top tail end is connected the part that holds out against with the piston rod outer end of the cylinder, the cylinder It is fixed on dead head.
Preferably, offer top installing hole on the dead head, it is described top institute to be arranged on by opening linear bearing State in top installing hole, on the dead head, offer the groove connected with the top installing hole, the length side of the groove To axially in parallel with the top installing hole, the fastening of the groove width that can change the groove on the dead head, is additionally provided with Part.
Preferably, the top tip structure is also included for adjusting the adjustment mechanism of the dead head position, the dead head On adjustment mechanism.
Preferably, the adjustment mechanism includes dead head connecting plate, and the dead head is arranged on the dead head connecting plate On, the dead head can on dead head connecting plate downward adjustment position.
Preferably, the dead head connecting plate includes transverse slat and the riser being connected with each other, and is offered vertically on the riser The the first strip groove for arranging, the dead head are arranged on the riser by the first strip groove.
Preferably, it is provided between the surface relative with the transverse slat of the dead head and the dead head connecting plate tiltedly Block, the skewback can be driven by actuator, to drive the dead head to move up or down.
Preferably, the surface relative with the transverse slat of the dead head be inclined-plane, be provided with the riser with it is described The relative gripper shoe in inclined-plane, the skewback are arranged between the inclined-plane and gripper shoe, and the upper surface of skewback is pasted with the inclined-plane Close, the lower surface of the skewback is fitted with the upper surface of the gripper shoe.
Preferably, the actuator is the bolt through the screwed hole on the via on the skewback and the riser.
Preferably, second strip groove of the length direction perpendicular to the top axial direction is provided with the transverse slat.
This utility model is that the top tip structure that this utility model is provided passes through will be top with the difference of prior art It is slidably mounted on dead head, and top tail end is by holding out against the support of part outer end, when top for holding out against slender axles When, as slender axles receive thermal stretching, it is described it is top can be in the dead head towards holding out against the movement of part direction so that it is top to holding out against The pressure of part tends to becoming big, now holds out against part and adjusts to top support force so that hold out against part and top support force is kept not Become, so as to keep the support force suffered by slender axles constant, to reduce the flexural deformation produced after slender axles are heated.Therefore, originally The top tip structure that utility model is provided can ensure the machining accuracy of slender axles when slender axles are processed.
Description of the drawings
Fig. 1 is a kind of structural representation of the top tip structure of embodiment that this utility model is provided;
Fig. 2 is the front view of the top tip structure shown in Fig. 1;
Fig. 3 is the left view of the top tip structure shown in Fig. 1;
Fig. 4 is the top view of the top tip structure shown in Fig. 1;
Fig. 5 is the structural representation in another direction of the top tip structure shown in Fig. 1, and wherein adjustment mechanism is not shown;
Description of reference numerals:
1- dead heads;2- is top;3- cylinders;4- grooves;5- securing members;6- dead head connecting plates;7- transverse slats;8- risers; 9- the first strip grooves;10- skewbacks;11- actuators;12- inclined-planes;13- gripper shoes;14- the second strip grooves;15- openings are straight Bobbin holds.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.But the purposes of these exemplary embodiments and Purpose is only used for enumerating this utility model, not constitutes any type of any limit to real protection scope of the present utility model It is fixed, it is more non-that protection domain of the present utility model is confined to into this.
Some nouns of locality are defined in this utility model, in the case where not being specified to the contrary, the orientation for being used Word such as " upper and lower, left and right " refers to that the top tip structure that this utility model is provided is defined under normal usage, and with accompanying drawing 2 Shown in direction up and down it is consistent." inside and outside " is referred to relative to inside and outside each parts profile itself.These nouns of locality are Adopt for the ease of understanding, thus do not constitute the restriction to this utility model protection domain.
Suitably with reference to shown in Fig. 1, the top tip structure of the basic embodiment that this utility model is provided can include dead head 1, On the dead head 1 top 2 and can be on top for supporting the part that holds out against of top 2 tail end, described top 2 Slide axially along top 2 on sharp seat 1, top 2 tail end is connected with the outfan for holding out against part, described to hold out against part Can adjust to top 2 support force.
Specifically, offer on the dead head 1 for installing top top installing hole, top middle part insertion is described It is in top installing hole, top to slide axially in top installing hole, hold out against the left end that part is fixed on dead head 1, top 2 Top head stretches out in the right-hand member of dead head 1, and the right-hand member for holding out against part is bolted on the left end of dead head 1, and is pushed up The tight outfan of part is linked together with top 2 tail end (left end), and connected mode can be bolt connection etc..
In this utility model, described top 2 can adopt existing various appropriate top tip structures, and described top 2 is excellent Choosing adopts high-precision rotary live center, to avoid slender axles scaling loss.
When in use, in the case where the pressure for holding out against part is acted on, top 2 right-hand member withstands the top tip structure of above-mentioned basic embodiment The end of slender axles, realizes the fixation of slender axles, and the top tip structure goes for two top clampings and the top clamping of chuck two Plant the fixed form of slender axles.Slender axles in process, by during thermal stretching, hold out against the support force of part by adjustment, can be with Finely tune the axial force of top top tight workpiece, what the effect of such heat in metal cutting made that slender axles produce freely extend holds out against Part adjusting, such that it is able to improve the machining accuracy of slender axles.
It is in this utility model, described to hold out against the appropriate configuration that part adopt the various axial forces that can adjust output, Such as hydraulic cylinder or cylinder etc..
In a preferred embodiment of the present utility model, as shown in figure 5, described hold out against part for cylinder 3, top 2 tail End is connected with the piston rod outer end of the cylinder 3, and the cylinder 3 is fixed on dead head 1.Gas is set to by part will be held out against Cylinder, can more easily realize the fine setting to top support force.
It is described hold out against part to top 2 support force regulation, can be with by the way of adjusting manually, it would however also be possible to employ automatically The mode of regulation, when needing to automatically adjust the pressure for holding out against part, can hold out against the position setting use that part is contacted with top 2 In measurement hold out against part to top 2 support force size sensor, the sensor is connected with the control system for holding out against part, so as to Adjusted by the support force of sensor Real-time Feedback hold out against part output hold out against part, so as to the support force for ensureing top 2 is constant.Example Such as, when part is held out against using cylinder 3, support force of the sensor Real-time Feedback cylinder 3 to top 2, so as to adjust air pressure in cylinder 3 Size, with ensure cylinder 3 to top 2 support force it is constant.
In a preferred embodiment of the present utility model, with reference to shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, described top 2 pass through Opening linear bearing 15 is offered on the dead head 1 and the top installing hole in the installing hole on described top 2 The groove 4 of connection, the length direction of the groove 4 are axially in parallel with the top installing hole, also set up on the dead head 1 There is the securing member 5 of the groove width that can change the groove 4.
In this embodiment, top 2 and dead head 1 are connected by opening linear bearing 15, top 2 can be caused top Smoothly slide on seat 1, reduce the resistance of top 2 axial movement, such that it is able to better ensure that slender axles in process Rigidity.The groove 4 connected with top installing hole is set on dead head 1 simultaneously, and the groove width that can adjust groove 4 is set Securing member 5, such that it is able to adjust the groove width of groove 4, so as to adjust the size of top installing hole, to be formed to opening linear bearing 15 precompressed, thereby may be ensured that the gap of opening linear bearing 15 and top 2 (top center sleeve parts), can be by opening Radial clearance between linear bearing 15 and top 2 is adjusted to 0 gap, such that it is able to avoid slender axles jump in process It is dynamic, it is ensured that the machining accuracy of slender axles.
As shown in figure 3, in this utility model, the cross sectional shape of the groove 4 is L-shaped, such that it is able to securing member 5 is arranged It is for the bolt of simple structure, and when the groove width of groove 4 is adjusted, simple to operation.
In order to realize the fine setting of the position to top tip structure, it is ensured that the fixed structure at the two ends of slender axles is (such as top or card Disk) axiality, in another preferred embodiment of the present utility model, the top tip structure is also included for adjusting the top The adjustment mechanism of 1 position of sharp seat, the dead head 1 are arranged on adjustment mechanism.
The adjustment mechanism can adopt existing various appropriate configurations, in this utility model, it is preferable that the adjustment Mechanism includes dead head connecting plate 6, and the dead head 1 is arranged on the dead head connecting plate 6, and the dead head 1 can be Downward adjustment position on dead head connecting plate 6.
Specifically, with reference to shown in Fig. 2, Fig. 3, the dead head connecting plate 6 includes the transverse slat 7 being connected with each other and riser 8, institute State and on riser 8, offer the first strip groove 9 being vertically arranged, the dead head 1 is arranged on by the first strip groove 9 On the riser 8.When needing to adjust the upper-lower position of dead head 1, bolt that can be by connection dead head 1 with riser 8 is unscrewed, Then dead head 1 is moved up and down, bolt is moved up and down in the first strip groove 9 therewith, when appropriate position is moved to, twisted Tight bolt, dead head 1 is fixed on position after adjustment, therefore, by arranging the first strip groove 9, it is possible to achieve top The adjustment up and down of seat 1.
Further, in order to preferably finely tune the dead head 1, in the table relative with the transverse slat 7 of the dead head 1 Skewback 10 is provided between face and the dead head connecting plate 6, the skewback 10 can be driven by actuator 11, to drive State dead head 1 to move up or down.By adjust skewback 10 front and back position, skewback 10 can promote on dead head 1 move or Move down, such that it is able to the upper-lower position of dead head 1.
In this utility model, the skewback 10 can be arranged between dead head 1 and transverse slat 7 that (now transverse slat 7 has part Positioned at the lower section of dead head 1).In order that the structure of top tip structure of the present utility model is simpler rationally, it is preferable that described The surface relative with the transverse slat 7 of dead head 1 is inclined-plane 12, and relative with the inclined-plane 12 propping up is provided with the riser 8 Fagging 13, the skewback 10 are arranged between the inclined-plane 12 and gripper shoe 13, and the upper surface of skewback 10 is pasted with the inclined-plane 12 Close, the lower surface of the skewback 10 is fitted with the upper surface of the gripper shoe 13.Such that it is able to driven tiltedly by actuator 11 When block is moved forward and backward, the height of actuator 11 and skewback 10 can keep constant.
In this utility model, the actuator 11 can adopt the structure that skewback 10 can be driven movable, such as liquid Cylinder pressure, linear electric motors etc..In this utility model, in order that top tip structure is simpler, the actuator 11 is through institute The bolt of the screwed hole on the via and the riser 8 on skewback 10 is stated, the bolt can be provided with through after the riser 8 Nut.By rotating bolt, can easily drive skewback 10 to move forward and backward, and the micro- of the position of skewback 10 can be realized Adjust, so as to realize the fine setting of the upper-lower position of dead head 1.
In this utility model, in order to realize the fine setting of the fore-and-aft direction of top tip structure, it is preferable that as shown in figure 4, in institute State the second strip groove 14 that length direction is provided with transverse slat 7 perpendicular to top 2 axial direction.Transverse slat 7 is by the second length Bar-shaped trough 14 is arranged on the lathe bed slide carriage of lathe.Specifically, transverse slat 7 can be solid by the bolt through the second strip groove 14 Be scheduled on lathe bed slide carriage, by adjustment bolt relative to the second strip groove 14 position, you can before and after realizing top tip structure The fine setting in direction.
Further, in order that 6 structure of dead head connecting plate is more stable, arrange between the transverse slat 7 and riser 8 There is the ribs of triangle.
The top tip structure that this utility model is provided is mainly used in the processing of thin and long shafts part, but it is also possible to for other zero The processing of part, this utility model are not construed as limiting to this.
The sequencing of above example only for ease of description, does not represent the quality of embodiment.
Finally it should be noted that:Above example only to illustrate the technical solution of the utility model, rather than a limitation; Although being described in detail to this utility model with reference to the foregoing embodiments, it will be understood by those within the art that: Which still can be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc. With replacement;And these modifications or replacement, do not make the essence of appropriate technical solution depart from each embodiment technology of this utility model The spirit and scope of scheme.

Claims (10)

1. a kind of top tip structure, it is characterised in that the top tip structure includes dead head (1), on the dead head (1) Top (2) and hold out against part for support the tail end of top (2), top (2) can on dead head (1) along Top (2) slide axially, and the tail end of top (2) is connected with the outfan for holding out against part, the part that holds out against can be adjusted Support force of the section to top (2).
2. top tip structure according to claim 1, it is characterised in that described to hold out against part for cylinder (3), the tail of top (2) End is connected with the piston rod outer end of the cylinder (3), and the cylinder (3) is fixed on dead head (1).
3. top tip structure according to claim 1, it is characterised in that offer top installing hole on the dead head (1), Top (2) by opening linear bearing (15) in the top installing hole, offer on the dead head (1) with The groove (4) of the top installing hole connection, the length direction of the groove (4) are axially in parallel with the top installing hole, The securing member (5) of the groove width that can change the groove (4) is additionally provided with the dead head (1).
4. top tip structure according to claim 1, it is characterised in that the top tip structure is also included for adjusting the top The adjustment mechanism of sharp seat (1) position, the dead head (1) is on adjustment mechanism.
5. top tip structure according to claim 4, it is characterised in that the adjustment mechanism includes dead head connecting plate (6), , on the dead head connecting plate (6), the dead head (1) can be on dead head connecting plate (6) for the dead head (1) Downward adjustment position.
6. top tip structure according to claim 5, it is characterised in that the dead head connecting plate (6) is including being connected with each other Transverse slat (7) and riser (8), the first strip groove (9) being vertically arranged, the dead head (1) are offered on the riser (8) By the first strip groove (9) on the riser (8).
7. top tip structure according to claim 6, it is characterised in that the dead head (1) it is relative with the transverse slat (7) Surface and the dead head connecting plate (6) between be provided with skewback (10), the skewback (10) can pass through actuator (11) Drive, to drive the dead head (1) to move up or down.
8. top tip structure according to claim 7, it is characterised in that the dead head (1) it is relative with the transverse slat (7) Surface be inclined-plane (12), the gripper shoe (13) relative with the inclined-plane (12), the skewback are provided with the riser (8) (10) it is arranged between the inclined-plane (12) and gripper shoe (13), the upper surface of skewback (10) is fitted with the inclined-plane (12), institute The lower surface for stating skewback (10) is fitted with the upper surface of the gripper shoe (13).
9. top tip structure according to claim 8, it is characterised in that the actuator (11) is through the skewback (10) On via and the riser (8) on screwed hole bolt.
10. top tip structure according to claim 6, it is characterised in that be provided with length direction on the transverse slat (7) vertical In the second strip groove (14) of the axial direction of top (2).
CN201620925654.XU 2016-08-23 2016-08-23 Top tip structure Expired - Fee Related CN206047121U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620925654.XU CN206047121U (en) 2016-08-23 2016-08-23 Top tip structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620925654.XU CN206047121U (en) 2016-08-23 2016-08-23 Top tip structure

Publications (1)

Publication Number Publication Date
CN206047121U true CN206047121U (en) 2017-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620925654.XU Expired - Fee Related CN206047121U (en) 2016-08-23 2016-08-23 Top tip structure

Country Status (1)

Country Link
CN (1) CN206047121U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107052373A (en) * 2017-04-06 2017-08-18 盐城工业职业技术学院 A kind of tunable center tailstock
CN110466004A (en) * 2019-09-12 2019-11-19 吴善旺 The timber clamping position method and device of carving and milling machine
CN112372507A (en) * 2020-11-12 2021-02-19 台州北平机床有限公司 Long workpiece auxiliary supporting assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107052373A (en) * 2017-04-06 2017-08-18 盐城工业职业技术学院 A kind of tunable center tailstock
CN110466004A (en) * 2019-09-12 2019-11-19 吴善旺 The timber clamping position method and device of carving and milling machine
CN110466004B (en) * 2019-09-12 2023-05-05 吴善旺 Timber clamping and positioning method and device of engraving and milling machine
CN112372507A (en) * 2020-11-12 2021-02-19 台州北平机床有限公司 Long workpiece auxiliary supporting assembly

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170329

Termination date: 20190823

CF01 Termination of patent right due to non-payment of annual fee