CN102151865B - Separating type clamping jaw with inclined comb teeth - Google Patents
Separating type clamping jaw with inclined comb teeth Download PDFInfo
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- CN102151865B CN102151865B CN2011100603166A CN201110060316A CN102151865B CN 102151865 B CN102151865 B CN 102151865B CN 2011100603166 A CN2011100603166 A CN 2011100603166A CN 201110060316 A CN201110060316 A CN 201110060316A CN 102151865 B CN102151865 B CN 102151865B
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- tooth
- pawl
- jaw
- broach
- basic
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Abstract
The invention discloses a separating type clamping jaw with inclined comb teeth, which comprises a base jaw provided with a comb tooth, and a top jaw provided with a comb tooth; the two comb teeth are inclined comb teeth with opposite and complemental tooth shapes; the position relationship between the top point of the tooth of the base jaw, two sides of the tooth of the base jaw, and the clamping point of the top jaw is as follows: the top point of the tooth of the base jaw is arranged between two sides of the tooth of the base jaw and the clamping point of the top jaw; the relationship between the top point of the tooth of the top jaw, two sides of the tooth of the top jaw, and the clamping point of the top jaw is as follows: two sides of the tooth of the top jaw are arranged between the top point of the tooth of the top jaw and the clamping point of the top jaw; and the smaller angle of two acute angles formed by two sides of the tooth and a chuck revolution axis is larger than the friction angle formed by the surfaces of the teeth of the base jaw and the top jaw so that the comb teeth can locate the top jaw relative to the base jaw on two directions of the chuck revolution axis; the reacting force of clamping force and turning feed force born by a workpiece on the top jaw leads the base jaw to be fit with the top jaw more tightly to enhance the bending stiffness of the top jaw and improve the clamping precision, and particularly improve the repeated clamping precision of the chuck during batch finishing.
Description
Technical field
The present invention relates to the work holder on the machine chuck, specifically relate to a kind of separate type claw with oblique broach.
Background technology
The power chuck of Digit Control Machine Tool is for adapting to the workpiece of different size, and its claw often adopts disengaging pawl, promptly basic pawl and top pawl.Carry out radial location and transmit radially clamping force through broach between base pawl and the top pawl.The profile of tooth of tradition broach is the isosceles triangular structure of 60 ° or 90 °, broach to the free degree constraint of top pawl be limited to chuck directly upwards towards with the both direction that deviates from the chuck axis of rotation and chuck gyroaxis to a direction towards chuck body.Be retained as example with cylindrical; The big or bite position of clamping force is near the top pawl during away from a side of chuck body; The top pawl occurs bending and deformation because of rigidity is limited, causes the part broach of top pawl and basic pawl to separate, the broach minimizing that makes the location and transmit clamping force; Positioning accuracy and clamping reliability decrease have been aggravated the bell-mouthed formation of top pawl simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of separate type claw with oblique broach, it can strengthen bending stiffness, pawl location, raising top and the clamping precision of top pawl on the machine chuck.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention includes the basic pawl that has broach and the top pawl that has broach, the profile of tooth of the profile of tooth of basic pawl carding tooth surface and top pawl carding tooth surface relatively, complementation and linking into an integrated entity; Tooth on described basic pawl broach and the top pawl broach is the helical teeth of non-isosceles triangle, and two limits of the summit of basic blade tooth, basic blade tooth and top pawl bite three's position relation be, the summit of basic blade tooth is between two limits and top pawl bite of basic blade tooth; Two limits of the summit of top blade tooth, top blade tooth and top pawl bite three's position relation are that two limits of top blade tooth are between the summit of top blade tooth and top pawl bite; The both sides of helical teeth are the α angle with the less angle that chuck turns round in two acute angles that the axle center became, and the α angle is greater than the angle of friction of the basic pawl and the top pawl broach flank of tooth.
The beneficial effect that the present invention has is:
The present invention realize broach to the top pawl with respect to basic pawl in the location of chuck gyroaxis to both direction; Suffered chucking power of workpiece and cutting centripetal force make basic pawl cooperate tightr with the top pawl to the reaction force of top pawl; Strengthened the bending stiffness of top pawl; Improved the clamping precision, especially in batches the repetition clamping precision of chuck during fine finishining.
Description of drawings
Fig. 1 is the top pawl of the outer bowlder of clamping of the present invention and the broach profile of tooth sketch map of basic pawl.
The profile of tooth figure of base pawl and top pawl upper comb dent when Fig. 2 is clamping excircle of workpiece embodiment of the present invention.
The profile of tooth figure of base pawl and top pawl upper comb dent when Fig. 3 is clamping workpiece endoporus embodiment of the present invention.
Fig. 4 is that basic pawl of the present invention and top pawl are assemblied in the sketch map on the chuck.
Among the figure: 1. basic pawl, the summit of 1a. base blade tooth, two limits of 1b. base blade tooth, 1'. base pawl; 1'a. the summit of basic blade tooth, two limits of 1'b. base blade tooth, 2. top pawl, the summit of 2a. top blade tooth; 2b. two limits of top blade tooth, 2c. top pawl bite, 2'. top pawl, the summit of 2'a. top blade tooth; 2'b. two limits of top blade tooth, 2'c. top pawl bite, 3. chuck body.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
Like Fig. 1, shown in Figure 2, the present invention includes basic pawl 1 that has broach and the top pawl 2 that has broach, the profile of tooth of the profile of tooth of basic pawl 1 broach and top pawl 2 broach relatively, complementation and linking into an integrated entity; The tooth of described basic pawl 1 and top pawl 2 upper comb dents is the helical teeth of non-isosceles triangle; Two limit 1b of summit 1a, the basic blade tooth of base blade tooth and top pawl bite 2c three's position relation are; The summit 1a of base blade tooth between two limit 1b and top pawl bite 2c of basic blade tooth, the contact point of the tooth top of promptly basic pawl broach pawl and workpiece towards the top; Two limit 2b of the summit 2a of top blade tooth, top blade tooth and top pawl bite 2c three's position relation be two limit 2b of top blade tooth between the summit of top blade tooth 2a and top pawl bite 2c, promptly the tooth top of top pawl broach deviates from the contact point of top pawl and workpiece; The both sides of helical teeth are the α angle with the less angle that chuck turns round in two acute angles that the axle center became, and the α angle is greater than the angle of friction of the basic pawl 1 and the top pawl 2 broach flank of tooth.
As shown in Figure 3, when being chuck clamping workpiece endoporus, the broach profile of tooth of basic pawl 1' and top pawl 2' is non-isosceles triangle tooth.Two limit 1'b of summit 1'a, the basic blade tooth of base blade tooth and top pawl bite 2'c three's position relation are the centres that the summit 1'a of basic blade tooth is positioned at two the limit 1'b and the top pawl bite 2'c of basic blade tooth, the contact point of the tooth top of promptly basic pawl 1' broach pawl 2' and workpiece towards the top.Two limit 2'b of the summit 2'a of top blade tooth, top blade tooth and top pawl bite 2'c three's position relation are the centres that two limit 2b of top blade tooth are positioned at the summit 2a and the top pawl bite 2c of top blade tooth, and promptly the tooth top of top pawl 2' broach deviates from the contact point of top pawl 2' and workpiece.The α angle is greater than the angle of friction of the basic pawl 1' and the top pawl 2' broach flank of tooth, and the broach profile of tooth of basic pawl 1' and top pawl 2' is relative, complementary.
As shown in Figure 4, when being the clamping of chuck clamping excircle of workpiece, basic pawl 1 is assemblied on the scroll chuck body 3 with top pawl 2.But the present invention is not limited to the three-jaw power chuck, also can be applicable in other multijaw chucks such as two pawls, four paws, and in other anchor clamps with comb structure location and transmission clamping force.
Claims (1)
1. the separate type claw with oblique broach comprises basic pawl (1) that has broach and the top pawl (2) that has broach, the profile of tooth of the profile of tooth of basic pawl (1) carding tooth surface and top pawl (2) carding tooth surface relatively, complementary and link into an integrated entity; It is characterized in that: the tooth on described basic pawl (1) broach and top pawl (2) broach is the helical teeth of non-isosceles triangle; The summit (1a) of base blade tooth, two limits (1b) of basic blade tooth and top pawl bite (2c) three's position relation is that the summit of basic blade tooth (1a) is positioned between two limits (1b) and top pawl bite (2c) of basic blade tooth; Two limits (2b) of the summit of top blade tooth (2a), top blade tooth and top pawl bite (2c) three's position relation be two limits (2b) of top blade tooth summit (2a) and top pawl bite (2c) of being positioned at the top blade tooth between; Tiltedly the both sides of broach are the α angle with the less angle that chuck turns round in two acute angles that the axle center became, and the α angle is greater than the angle of friction of the basic pawl and the top pawl broach flank of tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100603166A CN102151865B (en) | 2011-03-14 | 2011-03-14 | Separating type clamping jaw with inclined comb teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100603166A CN102151865B (en) | 2011-03-14 | 2011-03-14 | Separating type clamping jaw with inclined comb teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102151865A CN102151865A (en) | 2011-08-17 |
| CN102151865B true CN102151865B (en) | 2012-07-25 |
Family
ID=44433727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100603166A Expired - Fee Related CN102151865B (en) | 2011-03-14 | 2011-03-14 | Separating type clamping jaw with inclined comb teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102151865B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550400A (en) * | 2013-10-29 | 2015-04-29 | 北京有色金属研究总院 | Anti-slip tooth design applicable to high-hardness metal sectional material stretching and straightening |
| CN105689746A (en) * | 2016-03-17 | 2016-06-22 | 合肥晨煦信息科技有限公司 | Lathe clamping claw |
| TWI634065B (en) * | 2017-10-13 | 2018-09-01 | 國立中山大學 | Gripper apparatus for loading or unloading workpiece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2631583A1 (en) * | 1976-07-14 | 1978-01-19 | Roehm Guenter H | POWERED CHUCK |
| DE10045257C1 (en) * | 2000-09-13 | 2002-05-29 | Schunk Gmbh & Co Kg | Chuck, for lathe, has clamping pads in radial guides composed of a base body and an upper part locked together by intersecting teeth aligned at an angle to the longitudinal pad lines |
| EP1157767B1 (en) * | 2000-05-20 | 2003-11-19 | FORKARDT Deutschland GmbH | Chuck |
| CN1817530A (en) * | 2006-03-14 | 2006-08-16 | 浙江大学 | Jack catch for clamping workpiece or cutting tool |
-
2011
- 2011-03-14 CN CN2011100603166A patent/CN102151865B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2631583A1 (en) * | 1976-07-14 | 1978-01-19 | Roehm Guenter H | POWERED CHUCK |
| EP1157767B1 (en) * | 2000-05-20 | 2003-11-19 | FORKARDT Deutschland GmbH | Chuck |
| DE10045257C1 (en) * | 2000-09-13 | 2002-05-29 | Schunk Gmbh & Co Kg | Chuck, for lathe, has clamping pads in radial guides composed of a base body and an upper part locked together by intersecting teeth aligned at an angle to the longitudinal pad lines |
| CN1817530A (en) * | 2006-03-14 | 2006-08-16 | 浙江大学 | Jack catch for clamping workpiece or cutting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102151865A (en) | 2011-08-17 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20190314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |