CN103737129B - The nut inner thread grinding device of interchangeable mill bar - Google Patents

The nut inner thread grinding device of interchangeable mill bar Download PDF

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Publication number
CN103737129B
CN103737129B CN201310675628.7A CN201310675628A CN103737129B CN 103737129 B CN103737129 B CN 103737129B CN 201310675628 A CN201310675628 A CN 201310675628A CN 103737129 B CN103737129 B CN 103737129B
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China
Prior art keywords
grinding
mill bar
internal thread
supporting plate
grinding tool
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CN201310675628.7A
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Chinese (zh)
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CN103737129A (en
Inventor
姚振强
王伟荣
孙姚飞
许胜�
林帷杰
肖建军
李康妹
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

The nut inner thread grinding device of interchangeable mill bar provided by the invention, comprising: the headstock (1), internal thread grinding tool (3), mill bar (4), grinding carriage base (5), grinding carriage rotating cylinder (6), supporting plate feeding device (7), supporting plate (8), worktable (9), lathe bed (10), grinding tool finishing device (11); Worktable (9) is arranged on lathe bed (10), and the headstock (1), grinding tool finishing device (11), grinding carriage base (5) are arranged on worktable (9); The workpiece revolution that the headstock (1) has internal thread feature for driving, can relative turn round between grinding carriage base (5) with grinding carriage rotating cylinder (6) to realize the helix angle needed for internal thread grinding; Supporting plate feeding device (7) can drive supporting plate (8) to move and pass through mill bar (4) and drive internal thread grinding tool (3) mobile. The present invention is by changing mill bar and the adjustment of mill bar position, it is possible to realizes the grinding of different lengths nut on a table apparatus, expands work range, it is to increase nut inner thread working (machining) efficiency, with flexible, particularly can realize the ground finish of overlength nut.

Description

The nut inner thread grinding device of interchangeable mill bar
Technical field
The invention belongs to mechanical engineering technical field, it is specially the nut inner thread grinding device of a kind of interchangeable mill bar.
Background technology
Ball-screw pair has the features such as positioning precision height, transmission efficiency height, synchronism are good, long service life, extremely extensive in field application such as numerically-controlled machine, precision instrument, high precision measuring instrument, automatic production lines. Ball nut, as the key part of ball-screw auxiliary driving, determines its service performance to a great extent. Along with the high speed development of automated control technology and the generally application of industrial machinery hand, the secondary process requirements amount to the nut, particularly overlength nut of different lengths of ball-screw increases day by day. Existing nut grinding device lacks flexible, to multi items to add man-hour uneconomical, it is thus desirable to provide one different lengths nut inner thread grinding scheme more efficiently.
Summary of the invention
For defect of the prior art, it is an object of the invention to overcome the deficiency of existing nut inner thread grinding device, the nut inner thread grinding device of a kind of interchangeable mill bar is provided, by changing mill bar and mill bar position adjustment, a table apparatus realizes the internal thread ground finish of different lengths nut.
Nut inner thread grinding device according to interchangeable mill bar provided by the invention, comprising: the headstock 1, internal thread grinding tool 3, mill bar 4, grinding carriage base 5, grinding carriage rotating cylinder 6, supporting plate feeding device 7, supporting plate 8, worktable 9, lathe bed 10, grinding tool finishing device 11;
Worktable 9 is arranged on lathe bed 10, and the headstock 1, grinding tool finishing device 11, grinding carriage base 5 are arranged on worktable 9, and for driving, the headstock 1, grinding tool finishing device 11 moves worktable 9; The workpiece revolution that the headstock 1 has internal thread feature for driving, can relative turn round between grinding carriage base 5 with grinding carriage rotating cylinder 6 to realize the helix angle needed for internal thread grinding; Supporting plate feeding device 7 is positioned on grinding carriage rotating cylinder 6, supporting plate feeding device 7 can drive supporting plate 8 move and by mill bar 4 drive internal thread grinding tool 3 to move, mill bar 4 and internal thread grinding tool 3 between removably connect.
Preferably, the revolution axis of the revolution axis of the headstock 1, grinding tool finishing device 11 is located in the same horizontal plane.
Preferably, for driving, supporting plate 8 and internal thread grinding tool 3 realize change in location on vertical direction to supporting plate feeding device 7, until the center of turning circle of the revolution axis of the revolution axis of the headstock 1, grinding tool finishing device 11 and internal thread grinding tool 3 is located in the same horizontal plane.
The working method of the nut inner thread grinding device according to above-mentioned interchangeable mill bar provided by the invention, comprises the steps:
First, the mill bar 4 of appropriate length is chosen according to processing work length;
Secondly, revolving wheel frame rotating cylinder 6 realizes the helix angle needed for internal thread grinding;
Again, internal thread grinding tool 3 center of turning circle position according to mill bar 4 end, the internal thread grinding tool 3 of supporting plate 8 and band mill bar 4 is driven to realize change in location on vertical direction by supporting plate feeding device 7, until internal thread grinding tool 3 center of turning circle of mill bar 4 end and the headstock 1 turn round axis, grinding tool finishing device 11 turns round axis and is in same level;
Afterwards, traverser 9 makes internal thread grinding tool 3 arrive correct position and complete the finishing of internal thread grinding tool;
Finally, workpiece rotational motion and table feed motion is coordinated to realize the ground finish of nut inner thread.
Compared with prior art, the present invention has following useful effect:
The present invention is by changing mill bar and the adjustment of mill bar position, it is possible to realizes the grinding of different lengths nut on a table apparatus, expands work range, it is to increase nut inner thread working (machining) efficiency, with flexible, particularly can realize the ground finish of overlength nut.
Accompanying drawing explanation
By reading with reference to the detailed description that non-limiting example is done by the following drawings, the other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of the present invention.
Fig. 2 is sectional drawing schematic diagram along AA line direction in Fig. 1.
In figure:
1 is the headstock;
2 is nut;
3 is internal thread grinding tool;
4 is mill bar;
5 is grinding carriage base;
6 is grinding carriage rotating cylinder;
7 is supporting plate feeding device;
8 is supporting plate;
9 is worktable;
10 is lathe bed;
11 is grinding tool finishing device.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail. The technician contributing to this area is understood the present invention by following examples further, but does not limit the present invention in any form. It should be appreciated that to those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some distortion and improvement. These all belong to protection scope of the present invention.
As shown in Figure 1 and Figure 2, in the present embodiment, the nut inner thread grinding device of interchangeable mill bar comprises: the headstock 1, nut 2, internal thread grinding tool 3, mill bar 4, grinding carriage base 5, grinding carriage rotating cylinder 6, supporting plate feeding device 7, supporting plate 8, worktable 9, lathe bed 10, grinding tool finishing device 11.
The described headstock 1 is driven by headstock drive unit, drives workpiece (such as the nut 2) revolution with internal thread feature; The described headstock 1 is fixed on worktable 9; Described grinding tool finishing device 11 is fixed on worktable 9; Described worktable 9 is positioned on lathe bed 10, and worktable 9 drives the drive headstock 1, grinding tool finishing device 11 to realize mobile by Working table driving device; Described grinding carriage rotating cylinder 6 realizes the helix angle needed for internal thread grinding by the relative revolution with grinding carriage base 5; Described supporting plate feeding device 7 is positioned on grinding carriage rotating cylinder 6, drives the internal thread grinding tool 3 of supporting plate 8 and band mill bar 4 to move by supporting plate drive unit; The mill bar 4 of described internal thread grinding tool 3 is interchangeable, adopts the mill bar 4 of different lengths according to Workpiece length. Therefore, this device can drive mill bar position adjustment by changing mill bar 4 and supporting plate 8, realizes the grinding of different lengths nut on a table apparatus.
When the present invention works, first, the mill bar 4 of appropriate length is chosen according to processing work length; Secondly, revolving wheel frame rotating cylinder 6 realizes the helix angle needed for internal thread grinding; Again, internal thread grinding tool 3 center of turning circle position according to mill boom end, the internal thread grinding tool 3 of supporting plate 8 and band mill bar 4 is driven to realize change in location on vertical direction by supporting plate drive unit, until internal thread grinding tool 3 center of turning circle of mill bar 4 end and the headstock 1 turn round axis, grinding tool finishing device 11 turns round axis and is in same level; Afterwards, traverser 9 makes internal thread grinding tool 3 arrive correct position and complete the finishing of internal thread grinding tool; Finally, workpiece rotational motion and table feed motion is coordinated to realize the ground finish of nut inner thread.
Above specific embodiments of the invention are described. It is understood that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect the flesh and blood of the present invention.

Claims (2)

1. the nut inner thread grinding device of an interchangeable mill bar, it is characterized in that, comprising: the headstock (1), internal thread grinding tool (3), mill bar (4), grinding carriage base (5), grinding carriage rotating cylinder (6), supporting plate feeding device (7), supporting plate (8), worktable (9), lathe bed (10), grinding tool finishing device (11);
Worktable (9) is arranged on lathe bed (10), the headstock (1), grinding tool finishing device (11), grinding carriage base (5) are arranged on worktable (9), and worktable (9) is for driving the headstock (1), grinding tool finishing device (11) mobile; The workpiece revolution that the headstock (1) has internal thread feature for driving, can relative turn round between grinding carriage base (5) with grinding carriage rotating cylinder (6) to realize the helix angle needed for internal thread grinding; Supporting plate feeding device (7) is positioned on grinding carriage rotating cylinder (6), supporting plate feeding device (7) can drive supporting plate (8) to move and pass through mill bar (4) and drive internal thread grinding tool (3) mobile, removably connects between mill bar (4) and internal thread grinding tool (3).
2. the nut inner thread grinding device of interchangeable mill bar according to claim 1, it is characterised in that, the revolution axis of the headstock (1), the revolution axis of grinding tool finishing device (11) are located in the same horizontal plane.
CN201310675628.7A 2013-12-11 2013-12-11 The nut inner thread grinding device of interchangeable mill bar Active CN103737129B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310675628.7A CN103737129B (en) 2013-12-11 2013-12-11 The nut inner thread grinding device of interchangeable mill bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310675628.7A CN103737129B (en) 2013-12-11 2013-12-11 The nut inner thread grinding device of interchangeable mill bar

Publications (2)

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CN103737129A CN103737129A (en) 2014-04-23
CN103737129B true CN103737129B (en) 2016-06-01

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192574A (en) * 1986-07-19 1988-01-20 Schaudt Maschinenbau Gmbh Grinding internal threads
JP2002326124A (en) * 2001-04-27 2002-11-12 Okuma Corp Internal thread grinding device
CN102581726A (en) * 2012-03-19 2012-07-18 南京理工大学 Non-contact automatic tool setting module and non-contact automatic tool setting method for internal thread groove of nut
CN103418860A (en) * 2012-05-25 2013-12-04 陕西汉江机床有限公司 Center complete machine for internal thread grinding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192574A (en) * 1986-07-19 1988-01-20 Schaudt Maschinenbau Gmbh Grinding internal threads
JP2002326124A (en) * 2001-04-27 2002-11-12 Okuma Corp Internal thread grinding device
CN102581726A (en) * 2012-03-19 2012-07-18 南京理工大学 Non-contact automatic tool setting module and non-contact automatic tool setting method for internal thread groove of nut
CN103418860A (en) * 2012-05-25 2013-12-04 陕西汉江机床有限公司 Center complete machine for internal thread grinding

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