CN202461554U - Down-pressure adjustment mechanism for machine tool centre - Google Patents
Down-pressure adjustment mechanism for machine tool centre Download PDFInfo
- Publication number
- CN202461554U CN202461554U CN 201120555482 CN201120555482U CN202461554U CN 202461554 U CN202461554 U CN 202461554U CN 201120555482 CN201120555482 CN 201120555482 CN 201120555482 U CN201120555482 U CN 201120555482U CN 202461554 U CN202461554 U CN 202461554U
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- CN
- China
- Prior art keywords
- spring
- supporting plate
- annular boss
- screw
- screw rod
- 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 - Lifetime
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Abstract
The utility model discloses a down-pressure adjustment mechanism for a machine tool centre. The centre is fixed with a small supporting plate through an outer bracket; the small supporting plate is sleeved on a screw rod through a screw rod nut; a shaft sleeve and a spring are sleeved on the screw rod nut in a screw rod penetration hole of the small supporting plate; the spring is positioned in the shaft sleeve; the upper end of the spring is pressed against a necking section at the upper end of the shaft sleeve; the lower end of the spring is pressed on an annular boss on the wall of the screw rod penetration hole of the small supporting plate through a disk-shaped spring; an annular boss is formed on the outer wall of the upper end of the screw rod nut and used for downwards pressing the necking section of the shaft sleeve; a gasket is fixedly arranged on the upper end face of the annular boss; a screw is vertically arranged on the gasket; and a proximity switch matched with the screw is arranged on a receiving disk. The down-pressure adjustment mechanism can perform rough adjustment and fine adjustment on down pressure of the centre so as to precisely control and adjust the down pressure of the centre; therefore, the machining precision of a workpiece can be guaranteed reliably; and the down-pressure adjustment mechanism is ingenious in concept, has a simple structure and can be used on a gear grinding machine and widely applied to a gear hobbing machine.
Description
Technical field
The utility model relates to a kind of machine tool component, relates in particular to the top downforce guiding mechanism of lathe.
Background technology
In the process of lathe, often use tip mechanism workpiece is felt relieved, and it is very important to control the downforce of top top tight workpiece, because its can directly influence the machining accuracy of workpiece.The tip mechanism of existing lathe is mainly through manual spiral or the automatic top tight workpiece of hydraulic pressure; But all can only the top downforce of coarse adjustment; And can not finely tune; So just can not accurately control the top downforce of adjustment, thereby seriously influence the machining accuracy of workpiece, be badly in need of solving the problems of the technologies described above for this reason workpiece.
The utility model content
The utility model technical problem to be solved is to provide a kind of top downforce guiding mechanism of lathe that can accurately control the top downforce of adjustment.
The technical scheme of the utility model is following: the top downforce guiding mechanism of a kind of lathe; Comprise top (1), feed screw nut (2) and screw mandrel (3); Wherein top (1) logical support arm (4) is fixing with little supporting plate (5); This little supporting plate is sleeved on the screw mandrel (3) through said feed screw nut (2), and its key is: the feed screw nut (2) in said little supporting plate (5) screw mandrel via hole goes up suit axle sleeve (6) and spring (7), and its medi-spring (7) is positioned at axle sleeve (6); The reducing section (6a) of the upper end of this spring and axle sleeve upper end connects, and spring (7) lower end is pressed on the annular boss (5a) of said little supporting plate (5) screw mandrel via hole hole wall through disk spring (8); Outer wall in said feed screw nut (2) upper end is provided with annular boss (2a); This annular boss is used to press down the reducing section (6a) of axle sleeve (6); And the upper surface of annular boss (2a) is installed with packing ring (9); Vertically be provided with screw (10) on this packing ring, gather being located at of this screw (10) position signalling and connect on the dish (12), and connect the end face that dish (12) is installed in said little supporting plate (5) near switch (11).
The utility model is on the basis of traditional structure; Feed screw nut (2) in said little supporting plate (5) screw mandrel via hole goes up suit axle sleeve (6) and spring (7); Its medi-spring (7) is positioned at axle sleeve (6); The reducing section (6a) of the upper end of this spring and axle sleeve upper end connects, and spring (7) lower end is pressed on the annular boss (5a) of said little supporting plate (5) screw mandrel via hole hole wall through disk spring (8); Outer wall in said feed screw nut (2) upper end is provided with annular boss (2a); This annular boss is used to press down the reducing section (6a) of axle sleeve (6); And the upper surface of annular boss (2a) is installed with packing ring (9); Vertically be provided with screw (10) on this packing ring, gather being located at of this screw (10) position signalling and connect on the dish (12), and connect the end face that dish (12) is installed in said little supporting plate (5) near switch (11).
When needing workpiece pressing; Start servomotor control screw mandrel and rotate, the screw mandrel of rotation drives the feed screw nut and moves down the downward last item cover of the feed screw nut who moves down; And the spring through pretension drives little supporting plate and moves down; Drive is fixed on the top workpiece that presses down on the little supporting plate, and then top tight workpiece roughly, so just accomplishes the coarse adjustment to top downforce; Then, the control servomotor continues rotation, and then the drive axle sleeve continues to move down; At this moment the axle sleeve that moves down can compress spring, and compressed spring drives little supporting plate and further moves down, the speed that this moment, the top speed that moves down moved down less than the feed screw nut; Transducing pin will move down near switch relatively like this, when the upper end of transducing pin has just moved near the switch below, receives the position signalling of transducing pin near switch; And give servomotor with this signal feedback, the stall of control servomotor, this moment top just workpiece pressing preferably; So just can finely tune top downforce; Fine setting combines with the coarse adjustment of preceding step, so just can very accurately control and adjusts top downforce, and the while has overcome traditional structure in the lump can only coarse adjustment and can not finely tune the defective of downforce.Certainly, the scope of downforce fine setting can confirm that we can control the scope of downforce fine setting through the height of regulating transducing pin through the stroke of transducing pin.
Adopt above structure; The utility model can carry out coarse adjustment and fine setting to top downforce, thereby accurately the top downforce of lathe is controlled in the control adjustment, and then guarantees the machining accuracy of workpiece reliably; Be skillfully constructed; Simple in structure, not only can be used on the gear grinding machines, but also can be used on the gear-hobbing machine.
Said screw (10) so just can be adjusted the height of screw (10) easily through being threaded on the packing ring (9), thereby controls the scope of downforce fine setting easily.
Beneficial effect: the utility model can carry out coarse adjustment and fine setting to top downforce; Thereby accurately the top downforce of lathe is controlled in the control adjustment; And then guarantee reliably to be skillfully constructed the machining accuracy of workpiece, simple in structure; Not only can be used on the gear grinding machines, but also can be used on the gear-hobbing machine.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the partial enlarged drawing of A part among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 1, shown in 2; The utility model is by top 1, feed screw nut 2, screw mandrel 3, support arm 4, little supporting plate 5, axle sleeve 6, spring 7, disk spring 8, packing ring 9, screw 10, near switch 11 with connect dish 12 and constitute; Wherein top 1 vertically is located on the support arm 4, and this support arm 4 passes through bolt with little supporting plate 5.Above-mentioned feed screw nut 2 is sleeved on the screw mandrel 3, and this screw mandrel 3 passes the screw mandrel via hole of little supporting plate 5, and feed screw nut 2 is positioned at the top of little supporting plate 5 screw mandrel via holes.
Inventive point as the utility model; Suit axle sleeve 6 and spring 7 on the feed screw nut 2 in said little supporting plate 5 screw mandrel via holes; Its medi-spring 7 is positioned at axle sleeve 6, and the reducing section 6a of the upper end of this spring 7 and axle sleeve 6 upper ends connects, and the lower end of spring 7 is pressed on the disk spring 8; This disk spring 8 is pressed in through limiting gasket 12 on the annular boss 5a of little supporting plate 5 screw mandrel via hole hole walls, and this limiting gasket 12 is sleeved on the said screw mandrel 3 with disk spring 8.
Can find out that from Fig. 1,2 outer wall in said feed screw nut 2 upper ends is provided with annular boss 2a, this annular boss 2a is positioned at the reducing section 6a top of last item cover 6, and is used to press down reducing section 6a.Be installed with packing ring 9 in the upper surface of above-mentioned annular boss 2a, and this packing ring 9 is sleeved on the said screw mandrel 3.Top at said packing ring 9 vertically is provided with screw 10 through screw thread.Saidly be used to receive the position signalling of screw 10 near switch 11, and both are vertical each other, this is located at said connecing on the dish 12 near switch 11.The said dish 12 that connects is installed in the end face of said little supporting plate 5, and is sleeved on the said screw mandrel 3, on connecing dish 12, vertically has the via hole (not marking among the figure) that supplies said screw 10 to pass through.
The above is merely the preferred embodiment of the utility model; It is not restriction with the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (2)
1. top downforce guiding mechanism of lathe; Comprise top (1), feed screw nut (2) and screw mandrel (3); Wherein top (1) logical support arm (4) is fixing with little supporting plate (5); This little supporting plate is sleeved on the screw mandrel (3) through said feed screw nut (2), it is characterized in that: the feed screw nut (2) in said little supporting plate (5) screw mandrel via hole goes up suit axle sleeve (6) and spring (7), and its medi-spring (7) is positioned at axle sleeve (6); The reducing section (6a) of the upper end of this spring and axle sleeve upper end connects, and spring (7) lower end is pressed on the annular boss (5a) of said little supporting plate (5) screw mandrel via hole hole wall through disk spring (8); Outer wall in said feed screw nut (2) upper end is provided with annular boss (2a); This annular boss is used to press down the reducing section (6a) of axle sleeve (6); And the upper surface of annular boss (2a) is installed with packing ring (9); Vertically be provided with screw (10) on this packing ring, gather being located at of this screw (10) position signalling and connect on the dish (12), and connect the end face that dish (12) is installed in said little supporting plate (5) near switch (11).
2. the top downforce guiding mechanism of lathe according to claim 1 is characterized in that: said screw (10) is through being threaded on the packing ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120555482 CN202461554U (en) | 2011-12-27 | 2011-12-27 | Down-pressure adjustment mechanism for machine tool centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120555482 CN202461554U (en) | 2011-12-27 | 2011-12-27 | Down-pressure adjustment mechanism for machine tool centre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202461554U true CN202461554U (en) | 2012-10-03 |
Family
ID=46909751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120555482 Expired - Lifetime CN202461554U (en) | 2011-12-27 | 2011-12-27 | Down-pressure adjustment mechanism for machine tool centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202461554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171142A (en) * | 2015-10-31 | 2015-12-23 | 重庆机床(集团)有限责任公司 | Pressure adjusting mechanism for outer support tip of hobbing machine |
| CN107116238A (en) * | 2017-05-02 | 2017-09-01 | 山东大学 | A kind of turning fast roll setting device |
-
2011
- 2011-12-27 CN CN 201120555482 patent/CN202461554U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171142A (en) * | 2015-10-31 | 2015-12-23 | 重庆机床(集团)有限责任公司 | Pressure adjusting mechanism for outer support tip of hobbing machine |
| CN107116238A (en) * | 2017-05-02 | 2017-09-01 | 山东大学 | A kind of turning fast roll setting device |
| CN107116238B (en) * | 2017-05-02 | 2019-03-22 | 山东大学 | A kind of turning fast roll setting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |