CN205009052U - Thin wall gear grinds hole anchor clamps - Google Patents

Thin wall gear grinds hole anchor clamps Download PDF

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Publication number
CN205009052U
CN205009052U CN201520761339.3U CN201520761339U CN205009052U CN 205009052 U CN205009052 U CN 205009052U CN 201520761339 U CN201520761339 U CN 201520761339U CN 205009052 U CN205009052 U CN 205009052U
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CN
China
Prior art keywords
circle
teeth
eccentric
arc center
gear number
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
CN201520761339.3U
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Chinese (zh)
Inventor
路金潮
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.)
East Henan Province Yun Da Power Transmission System Co Ltd
Original Assignee
East Henan Province Yun Da Power Transmission System 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 East Henan Province Yun Da Power Transmission System Co Ltd filed Critical East Henan Province Yun Da Power Transmission System Co Ltd
Priority to CN201520761339.3U priority Critical patent/CN205009052U/en
Application granted granted Critical
Publication of CN205009052U publication Critical patent/CN205009052U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a thin wall gear grinds hole anchor clamps, these anchor clamps of include concentric locking collar, three pitch circle stick and gland nut, and the tip of concentric locking collar is equipped with the locating hole, is equipped with the eccentric circular arc of three -section in the locating hole, and the inboard of every eccentric circular arc is equipped with a pitch circle stick, and the position of the circumferencial direction in the eccentric relative concentric locking collar centre of a circle in the circular arc centre of a circle is confirmed by the gear number of teeth: be 3 timesharing such as multiple, the eccentric circular arc evenly distributed of three -section when the gear number of teeth. The beneficial effects of the utility model are that: compare with prior art, these anchor clamps adopt three eccentric circular arc automatic centering, and centering precision is high, and radial clamping power is little, so thin wall gear radial deformation volume is very little, the cylindricity precision in the hole of the thin wall gear of manufacturing is higher.

Description

A kind of thin-wall gear mill internal clamp
Technical field
The utility model relates to wheel cutter might, and what be specifically related to Gear Processing adds clamper.
Background technology
The LZ700B.37.188 gear that my company produces, as Fig. 1, hole wall is thinner, and the size in hole and Geometrical Tolerance Principle are all very high, and endoporus adopts grinding to ensure.Originally be axial compression: adopt chuck clamping opening sleeve, opening sleeve shrinks clamping top circle and carries out mill endoporus, and workpiece is radial deformation very easily, and the deviation from cylindrical form in hole reaches 0.1---0.2mm, seriously overproof.
Utility model content
For overcoming above-mentioned deficiency, the purpose of this utility model is to provide a kind of thin-wall gear mill internal clamp of axial compression, reduces radial clamping force, grinding out is out of shape and reduces, ensure the precision of grinding out during its work.
The technical solution of the utility model is specially:
A kind of thin-wall gear mill internal clamp, this fixture comprises concentric locking collar, three pitch circle rods and clamp nut, the end of concentric locking collar is provided with locating hole, three sections of eccentric arcs are provided with in locating hole, the inner side of each eccentric arc is provided with a pitch circle rod, and the position of the circumferencial direction in the relative concentric locking collar center of circle, the eccentric arc center of circle is determined by the gear number of teeth:
When timesharing such as the multiples that the gear number of teeth is 3, three sections of eccentric arcs are uniformly distributed;
When the gear number of teeth be 3 multiple many 1 time, make to be distributed in the gear number of teeth between the first eccentric arc center of circle and the second eccentric arc center of circle, with, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, equal; Be distributed in the gear number of teeth between the three eccentricity circular arc center of circle and the first eccentric arc center of circle, than, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, many 1;
When the multiple that the gear number of teeth is 3 lacks 1, make to be distributed in the gear number of teeth between the first eccentric arc center of circle and the second eccentric arc center of circle, with, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, equal; Be distributed in the gear number of teeth between the three eccentricity circular arc center of circle and the first eccentric arc center of circle, than, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, few 1.
The end thread that clamp nut and concentric locking collar are provided with locating hole coordinates.
When the gear number of teeth is not the multiple for 3, the radial position in the eccentric arc center of circle is determined by eccentric throw.
The externally threaded rear end of described concentric locking collar extends to guide cylinder, extends to guiding circular hole in clamp nut internal thread front end, and the two dynamic cooperation is play the guiding role.
The beneficial effects of the utility model are: compared to the prior art, and this fixture adopts the self-centering of three eccentricity circular arc, and centering precision is high, and radial clamping force is little, so thin-wall gear radial-deformation is very little, the cylindricity precision in the hole of the thin-wall gear of manufacture is higher.
Accompanying drawing explanation
Fig. 1 is the generalized section of gear.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the front section view of concentric locking collar.
Fig. 4 is that the AA of concentric locking collar is to sectional view.
Fig. 5 concentric locking collar angle calculation schematic diagram.
Detailed description of the invention
As Fig. 1-Fig. 5, a kind of thin-wall gear mill internal clamp comprises concentric locking collar 1, three pitch circle rods 3 and clamp nut 2, and the end of concentric locking collar 1 is provided with locating hole, and locating hole can be located workpiece (gear 8).Be provided with three sections of eccentric arcs 4 in locating hole, the inner side of each eccentric arc 4 is provided with a pitch circle rod 3, and the position of the circumferencial direction in relative concentric locking collar 1 center of circle, eccentric arc 4 center of circle is determined by the gear number of teeth:
When timesharing such as the multiples that the gear number of teeth is 3, three sections of eccentric arcs 4 are uniformly distributed;
When the gear number of teeth be 3 multiple many 1 time, make to be distributed in the gear number of teeth between the first eccentric arc center of circle and the second eccentric arc center of circle, with, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, equal; Be distributed in the gear number of teeth between the three eccentricity circular arc center of circle and the first eccentric arc center of circle, than, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, many 1;
When the multiple that the gear number of teeth is 3 lacks 1, make to be distributed in the gear number of teeth between the first eccentric arc center of circle and the second eccentric arc center of circle, with, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, equal; Be distributed in the gear number of teeth between the three eccentricity circular arc center of circle and the first eccentric arc center of circle, than, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, few 1;
When the gear number of teeth is not the multiple for 3, the radial position in eccentric arc 4 center of circle is calculated by eccentric throw to be determined, computing formula is:
Eccentric throw=distance over bar/2+ pitch circle rod 3 fit-up gaps-shaping boring cutter radius.
The end thread that clamp nut 2 is provided with locating hole with concentric locking collar 1 coordinates.
Guide cylinder is extended in the externally threaded rear end of concentric locking collar 1, guiding circular hole is extended in clamp nut 2 internal thread front end, the two dynamic cooperation is play the guiding role, when clamp nut 2 coordinates with concentric locking collar 1, clamp nut 2 and the angle of concentric locking collar 1 axis can be reduced, make the vertical precision of compression end face and concentric locking collar 1 center line.
Its operation principle is:
As Fig. 1-Fig. 5, during use, with chuck clamping concentric locking collar 1 also centering, three pitch circle rods 3 are placed on respectively the maximum radius place aligning three eccentric arcs 4 in gear 8 teeth groove, swing pinion to the left or to the right gently again, drive pitch circle rod 3 slippage and self-centering appropriateness clamping gear on eccentric arc 4 lift angle, produce self-locking, then screw on clamp nut 2 and gear face is compressed get final product grinding.When rotating gear by hand, pitch circle rod 3 turns Φ 2 jiaos to keeping self-locking state with eccentric arc 4 lift angle intimate contact from maximal clearance, as Fig. 5, can draw best eccentric arc 4 radius value and eccentric throw (computational process omission) as calculated.Diametric(al) 0.3mm is got in pitch circle rod 3 fit-up gaps.After mill, screw off clamp nut 2, taking-up pitch circle rod 3 and gear start the processing of next gear.
New fixture, compared with original fixture, has the following advantages:
Three eccentricity circular arc 4 self-centering, centering precision is high, and radial clamping force is little, so thin-wall gear radial-deformation is very little.
Clamp nut 2 feel relieved by one section of cylinder with concentric locking collar 1, ensures clamp nut 2 and the axiality of concentric locking collar 1 and the perpendicularity of end face and center line, the impact on gear centering precision when minimizing clamp nut 2 compresses gear face.
Gear small end face is outside, and clamped one time can complete the grinding of bore and end face.

Claims (3)

1. a thin-wall gear mill internal clamp, it is characterized in that: this fixture comprises concentric locking collar (1), three pitch circle rods (3) and clamp nut (2), the end of concentric locking collar (1) is provided with locating hole, three sections of eccentric arcs (4) are provided with in locating hole, the inner side of each eccentric arc (4) is provided with a pitch circle rod (3), and the position of the circumferencial direction in relative concentric locking collar (1) center of circle, eccentric arc (4) center of circle is determined by the gear number of teeth:
When timesharing such as the multiples that the gear number of teeth is 3, three sections of eccentric arcs (4) are uniformly distributed;
When the gear number of teeth be 3 multiple many 1 time, make to be distributed in the gear number of teeth between the first eccentric arc center of circle and the second eccentric arc center of circle, with, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, equal; Be distributed in the gear number of teeth between the three eccentricity circular arc center of circle and the first eccentric arc center of circle, than, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, many 1;
When the multiple that the gear number of teeth is 3 lacks 1, make to be distributed in the gear number of teeth between the first eccentric arc center of circle and the second eccentric arc center of circle, with, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, equal; Be distributed in the gear number of teeth between the three eccentricity circular arc center of circle and the first eccentric arc center of circle, than, be distributed in the gear number of teeth between the second eccentric arc center of circle and the three eccentricity circular arc center of circle, few 1;
The end thread that clamp nut (2) is provided with locating hole with concentric locking collar (1) coordinates.
2. thin-wall gear mill internal clamp as claimed in claim 1, it is characterized in that: when the gear number of teeth is not the multiple for 3, the radial position in eccentric arc (4) center of circle is determined by eccentric throw.
3. thin-wall gear mill internal clamp as claimed in claim 1, is characterized in that: described concentric locking collar (1) externally threaded rear end extends to guide cylinder, extends to guiding circular hole in clamp nut (2) internal thread front end, and the two dynamic cooperation is play the guiding role.
CN201520761339.3U 2015-09-29 2015-09-29 Thin wall gear grinds hole anchor clamps Expired - Fee Related CN205009052U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520761339.3U CN205009052U (en) 2015-09-29 2015-09-29 Thin wall gear grinds hole anchor clamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520761339.3U CN205009052U (en) 2015-09-29 2015-09-29 Thin wall gear grinds hole anchor clamps

Publications (1)

Publication Number Publication Date
CN205009052U true CN205009052U (en) 2016-02-03

Family

ID=55207679

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520761339.3U Expired - Fee Related CN205009052U (en) 2015-09-29 2015-09-29 Thin wall gear grinds hole anchor clamps

Country Status (1)

Country Link
CN (1) CN205009052U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106737175A (en) * 2016-12-28 2017-05-31 齐齐哈尔雷昂重工机械制造有限责任公司 Grinding machine processes bore frock
CN111015290A (en) * 2019-12-24 2020-04-17 兰州飞行控制有限责任公司 Clamp for machining gear hole groove and using method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106737175A (en) * 2016-12-28 2017-05-31 齐齐哈尔雷昂重工机械制造有限责任公司 Grinding machine processes bore frock
CN111015290A (en) * 2019-12-24 2020-04-17 兰州飞行控制有限责任公司 Clamp for machining gear hole groove and using method

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Legal Events

Date Code Title Description
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: 20160203

Termination date: 20180929

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