CN105252087A - Tool used for machining eccentric T-shaped thread of bearing frame - Google Patents

Tool used for machining eccentric T-shaped thread of bearing frame Download PDF

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Publication number
CN105252087A
CN105252087A CN201510739043.6A CN201510739043A CN105252087A CN 105252087 A CN105252087 A CN 105252087A CN 201510739043 A CN201510739043 A CN 201510739043A CN 105252087 A CN105252087 A CN 105252087A
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CN
China
Prior art keywords
cylindrical
diameter
hole
bearing bracket
bracket stand
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Granted
Application number
CN201510739043.6A
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Chinese (zh)
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CN105252087B (en
Inventor
袁兵昌
谢云
田星亮
张琴
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Anhui Heli Co Ltd
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Anhui Heli Co Ltd
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Priority to CN201510739043.6A priority Critical patent/CN105252087B/en
Publication of CN105252087A publication Critical patent/CN105252087A/en
Application granted granted Critical
Publication of CN105252087B publication Critical patent/CN105252087B/en
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Abstract

The invention relates to a tool used for machining an eccentric T-shaped thread of a bearing frame. The tool comprises a base. A positioning rod is arranged on the base, wherein the positioning rod and the bearing frame are primarily positioned. A core shaft for limiting the axial position of the bearing frame is further arranged on the base, the core shaft penetrates the bearing frame, the core shaft and the bearing frame are coaxially arranged, the bearing frame is sleeved with a lining for limiting the height between the bearing frame and the base, and a positioning ring and a nut which are used for locking the bearing frame are arranged on the core shaft. By means of the technical scheme, the lower end of the core shaft and the lower end of the bearing frame of the tool are arranged in a first positioning hole of the base at the same time, and the upper end and the lower end of the bearing frame can be completely concentric accordingly; the bearing frame is primarily positioned through the positioning rod, the nut presses the positioning ring by tightening the nut, the lining is pressed accordingly, and fastening positioning of the bearing frame is achieved; the eccentric T-shaped thread of the bearing frame is machined through a lathe, the machining efficiency is greatly improved accordingly, and the tool is suitable for mass production; and meanwhile the whole tool is simple in structure and high in positioning accuracy and stability.

Description

A kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand
Technical field
The present invention relates to a kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand.
Background technology
In machining, the processing of eccentric T-shaped screw thread is all more difficult, and especially require higher workpiece for position degree, working (machining) efficiency is low is maximum problem.For the T-shaped screw thread of the bias on bearing bracket stand, common employing vertical machining centre processing, the advantage of this processing mode is the need of production that can meet small lot, guarantees T-shaped eccentric screw thread high-quality processing; Shortcoming is: use vertical machining centre, processing cost is higher, and working (machining) efficiency is lower, is not suitable for producing in enormous quantities.
Summary of the invention
The object of the present invention is to provide a kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand, this tool structure is simple, and clamping is convenient, and can meet large batch of need of production, production efficiency is high.
For achieving the above object, present invention employs following technical scheme: comprise the base of clamping on machine tool jaw, described base is provided with the backstay of just locating with bearing bracket stand, described base is also provided with the mandrel limiting bearing bracket stand axial location, the inside of described mandrel through-shaft bolster and arranging with core with bearing bracket stand, the outer cover of described bearing bracket stand is provided with the lining limiting height between bearing bracket stand and base, and described mandrel is provided with centring ring and the nut of lock shaft bolster.
Described base is stepped, comprise the first cylindrical section of minor diameter and large diameter second cylindrical section, the first described cylindrical section matches with machine tool jaw, described base is provided with the first locating hole passed for mandrel and the second locating hole being used for installing backstay, the first described locating hole runs through the first cylindrical section and the second cylindrical section is arranged, the second described locating hole is arranged on the end face of the second cylindrical section, and the second locating hole is blind hole.
Described bearing bracket stand is stepped, comprise the three cylindrical section of minor diameter and large diameter 4th cylindrical section, the 4th described cylindrical section laterally horizontal-extending has eccentric T-shaped hole processing portion, the inside of described bearing bracket stand is provided with step-like through hole, described through hole comprises the first cylindrical hole that diameter increases progressively successively, second cylindrical hole and three cylindrical hole, described lining is set in three cylindrical section, and the length of lining is less than the length of three cylindrical section, the diameter of three cylindrical section and the aperture of the first locating hole match, described backstay is resisted against the lateral surface in eccentric T-shaped screw thread process portion.
Described mandrel is Step Shaft, comprise the first diameter segment that diameter successively decreases successively, Second bobbin diameter section, 3rd diameter segment and the 4th diameter segment, wherein, the diameter of the first diameter segment and the aperture of the first locating hole match, the diameter of Second bobbin diameter section is less than the diameter of bearing bracket stand first cylindrical hole, and the first cylindrical hole of bearing bracket stand is set in Second bobbin diameter section, the diameter compatible of the 3rd diameter segment and centring ring closes, the external diameter of centring ring and the aperture of the second cylindrical hole match, 4th diameter segment is the thread segment matched with nut, the end of described first diameter segment is provided with the flange fixed with the first cylindrical section of base.
Described base is also provided with the balancing weight keeping base balance, the end face of described second cylindrical section is provided with the counterweight installing hole for installing balancing weight, and described counterweight installing hole is blind hole.
As shown from the above technical solution, the lower end of mandrel of the present invention and bearing bracket stand is placed in the first locating hole on base simultaneously, positioning core axle and bearing bracket stand are come by centring ring in upper end, make the two ends up and down of bearing bracket stand can be completely concentric, by backstay, just carry is carried out to bearing bracket stand, pass through fastening nut, nut is made to compress centring ring, thus compression lining, realize the fastening location of bearing bracket stand, and adopt lathe to carry out the processing of eccentric T-shaped screw thread to bearing bracket stand, working (machining) efficiency is increased dramatically, be applicable to batch production, whole tool structure is simple simultaneously, positioning precision and stability high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is perspective view of the present invention;
Fig. 3 is the structural representation of base of the present invention;
Fig. 4 is the structural representation of mandrel of the present invention;
Fig. 5 is the structural representation of bearing bracket stand of the present invention;
Fig. 6 is the clamping schematic diagram of the present invention on lathe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described:
A kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand as shown in Figure 1, Figure 2 and shown in Fig. 6, comprise the base 1 of clamping on machine tool jaw 100, base 1 is provided with the backstay 3 of just locating with bearing bracket stand 2, base 1 is also provided with the mandrel 4 limiting bearing bracket stand 2 axial location, the inside of mandrel 4 through-shaft bolster 2 and arranging with core with bearing bracket stand 2, the outer cover of bearing bracket stand 2 is provided with the lining 5 limiting height between bearing bracket stand 2 and base 1, and mandrel 4 is provided with centring ring 6 and the nut 7 of lock shaft bolster 2.
Further, as shown in Figure 3, base 1 is stepped, comprise the first cylindrical section 11 of minor diameter and large diameter second cylindrical section 12, first cylindrical section 11 matches with machine tool jaw 100, claw 100 namely on machine chuck 200 clamps the face of cylinder of the first cylindrical section 11, base 1 is provided with the first locating hole 13 passed for mandrel 4 and the second locating hole 14 being used for installing backstay 3, first locating hole 13 runs through the first cylindrical section 11 and the second cylindrical section 12 is arranged, namely the first locating hole 13 is for running through the through hole of base 1 setting, second locating hole 14 is arranged on the end face of the second cylindrical section 12, and the second locating hole 14 is blind hole.
Further, base 1 is also provided with the end face of balancing weight 8, second cylindrical section 12 keeping base 1 to balance and is provided with counterweight installing hole 15 for installing balancing weight 8, counterweight installing hole 15 is blind hole.
Further, as shown in Figure 5, bearing bracket stand 2 is stepped, comprise the three cylindrical section 21 of minor diameter and large diameter 4th cylindrical section 22, 4th cylindrical section 22 laterally horizontal-extending has eccentric T-shaped hole processing portion 23, the inside of bearing bracket stand 2 is provided with step-like through hole, through hole comprises the first cylindrical hole 24 that diameter increases progressively successively, second cylindrical hole 25 and three cylindrical hole 26, lining 5 is set in three cylindrical section 21, and the length of lining 5 is less than the length of three cylindrical section 21, namely lining 5 is an open column shape body, lining 5 is while defining and coordinating the degree of depth between bearing bracket stand with base, also the lifting surface area of frock is increased, add the rigidity of frock, improve the stability of frock, the diameter of three cylindrical section 21 and the aperture of the first locating hole 13 match, and backstay 3 is resisted against the lateral surface in eccentric T-shaped screw thread process portion 23.
Further, as shown in Figure 4, mandrel 4 is Step Shaft, comprise the first diameter segment 41 that diameter successively decreases successively, Second bobbin diameter section 42, 3rd diameter segment 43 and the 4th diameter segment 44, wherein, the diameter of the first diameter segment 41 and the aperture of the first locating hole 13 match, the diameter of Second bobbin diameter section 42 is less than the diameter of bearing bracket stand 2 first cylindrical hole 24, and the first cylindrical hole 24 of bearing bracket stand 2 is set in Second bobbin diameter section 42, 3rd diameter segment 43 is closed with the diameter compatible of centring ring 6, the external diameter of centring ring 6 and the aperture of the second cylindrical hole 25 match, 4th diameter segment 44 is the thread segment matched with nut 7, the end of the first diameter segment 41 is provided with the flange 45 fixed with the first cylindrical section 11 of base 1.
First diameter segment of mandrel in use, is first placed in the first locating hole of base, is fixed on the end face of base first cylindrical section by the flange of mandrel by bolt by the present invention, realizes the fixing of mandrel and base, directly be enclosed within the three cylindrical section of bearing bracket stand by lining, the first cylindrical hole of bearing bracket stand inside is directly enclosed within the Second bobbin diameter section of mandrel, the lower end of bearing bracket stand three cylindrical section is put into the first locating hole of base simultaneously again, be enclosed within by centring ring in the 3rd diameter segment of mandrel, the cylindrical of centring ring is placed in the second cylindrical hole again, and nut is placed in the 4th diameter segment of mandrel, rotating shaft bolster makes the lateral surface in eccentric T-shaped hole processing portion touch backstay, now locking nut, centring ring is compressed downwards, now the lower surface of centring ring compresses the lower surface of the second cylindrical hole, lining upper, lower surface pushes against the lower surface of bearing bracket stand the 4th cylindrical section and the upper surface of the second cylindrical section respectively, lining also defines bearing bracket stand three cylindrical section and coordinates the degree of depth between base first locating hole, claw finally by clamping on the frock of bearing bracket stand and machine chuck fixes, bias T-shaped hole processing portion processes T-shaped screw 29.During workpiece dismounting, after directly unclamping nut, bearing bracket stand can directly be backed off from frock together with lining, centring ring, completes the dismounting of bearing bracket stand.
Beneficial effect of the present invention is: 1) simple operation, and positioning precision and the stability of frock are higher; 2), after adopting lathe process, manufacturing cost is reduced; 3) working (machining) efficiency can significantly promote, and is applicable to batch production.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.

Claims (5)

1. the frock for the eccentric T-shaped screw thread process of bearing bracket stand, it is characterized in that: comprise the base (1) of clamping on machine tool jaw (100), described base (1) is provided with the backstay (3) of just locating with bearing bracket stand (2), described base (1) is also provided with the mandrel (4) limiting bearing bracket stand (2) axial location, the inside of described mandrel (4) through-shaft bolster (2) and arranging with core with bearing bracket stand (2), the outer cover of described bearing bracket stand (2) is provided with the lining (5) limiting height between bearing bracket stand (2) and base (1), described mandrel (4) is provided with centring ring (6) and the nut (7) of lock shaft bolster (2).
2. the frock for the eccentric T-shaped screw thread process of bearing bracket stand according to claim 1, it is characterized in that: described base (1) is stepped, comprise first cylindrical section (11) of minor diameter and large diameter second cylindrical section (12), described the first cylindrical section (11) matches with machine tool jaw (100), described base (1) is provided with the first locating hole (13) passed for mandrel (4) and the second locating hole (14) being used for installing backstay (3), described the first locating hole (13) runs through the first cylindrical section (11) and arranges with the second cylindrical section (12), described the second locating hole (14) is arranged on the end face of the second cylindrical section (12), and the second locating hole (14) is blind hole.
3. the frock for the eccentric T-shaped screw thread process of bearing bracket stand according to claim 2, it is characterized in that: described bearing bracket stand (2) is stepped, comprise the three cylindrical section (21) of minor diameter and large diameter 4th cylindrical section (22), the 4th described cylindrical section (22) laterally horizontal-extending has eccentric T-shaped hole processing portion (23), the inside of described bearing bracket stand (2) is provided with step-like through hole, described through hole comprises the first cylindrical hole (24) that diameter increases progressively successively, second cylindrical hole (25) and three cylindrical hole (26), described lining (5) is set in three cylindrical section (21), and the length of lining (5) is less than the length of three cylindrical section (21), the diameter of three cylindrical section (21) and the aperture of the first locating hole (13) match, described backstay (3) is resisted against the lateral surface of eccentric T-shaped screw thread process portion (23).
4. the frock for the eccentric T-shaped screw thread process of bearing bracket stand according to claim 3, it is characterized in that: described mandrel (4) is Step Shaft, comprise the first diameter segment (41) that diameter successively decreases successively, Second bobbin diameter section (42), 3rd diameter segment (43) and the 4th diameter segment (44), wherein, the diameter of the first diameter segment (41) and the aperture of the first locating hole (13) match, the diameter of Second bobbin diameter section (42) is less than the diameter of bearing bracket stand (2) first cylindrical hole (24), and first cylindrical hole (24) of bearing bracket stand (2) is set in Second bobbin diameter section (42), 3rd diameter segment (43) is closed with the diameter compatible of centring ring (6), the external diameter of centring ring (6) and the aperture of the second cylindrical hole (25) match, 4th diameter segment (44) is the thread segment matched with nut (7), the end of described first diameter segment (41) is provided with the flange (45) fixed with first cylindrical section (11) of base (1).
5. the frock for the eccentric T-shaped screw thread process of bearing bracket stand according to claim 2, it is characterized in that: described base (1) is also provided with the balancing weight (8) keeping base (1) to balance, the end face of described second cylindrical section (12) is provided with the counterweight installing hole (15) for installing balancing weight (8), and described counterweight installing hole (15) is blind hole.
CN201510739043.6A 2015-11-04 2015-11-04 A kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand Active CN105252087B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510739043.6A CN105252087B (en) 2015-11-04 2015-11-04 A kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand

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Application Number Priority Date Filing Date Title
CN201510739043.6A CN105252087B (en) 2015-11-04 2015-11-04 A kind of frock for the eccentric T-shaped screw thread process of bearing bracket stand

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CN105252087A true CN105252087A (en) 2016-01-20
CN105252087B CN105252087B (en) 2017-10-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110695416A (en) * 2019-10-22 2020-01-17 苏州市职业大学 Accompanying device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107367A (en) * 2009-12-24 2011-06-29 杨元昌 Device for clamping eccentric parts
CN102922333A (en) * 2012-11-17 2013-02-13 无锡新宏泰电器科技股份有限公司 Clamp for processing eccentric hole
JP2013043258A (en) * 2011-08-25 2013-03-04 Aisin Aw Co Ltd Workpiece positioning tool for machine tool
CN103358157A (en) * 2012-03-31 2013-10-23 新兴重工湖北三六一一机械有限公司 Fixture for machining eccentric rotary bodies
CN203357097U (en) * 2013-07-01 2013-12-25 重庆聚嘉机械有限公司 Tool for machining eccentric hole in planet carrier of special-shaped structure
CN203726151U (en) * 2013-10-08 2014-07-23 大同齿轮(昆山)有限公司 Fixture for processing eccentric hole of gear
CN205096651U (en) * 2015-11-04 2016-03-23 安徽合力股份有限公司 A frock for eccentric T type thread processing of bearing bracket

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107367A (en) * 2009-12-24 2011-06-29 杨元昌 Device for clamping eccentric parts
JP2013043258A (en) * 2011-08-25 2013-03-04 Aisin Aw Co Ltd Workpiece positioning tool for machine tool
CN103358157A (en) * 2012-03-31 2013-10-23 新兴重工湖北三六一一机械有限公司 Fixture for machining eccentric rotary bodies
CN102922333A (en) * 2012-11-17 2013-02-13 无锡新宏泰电器科技股份有限公司 Clamp for processing eccentric hole
CN203357097U (en) * 2013-07-01 2013-12-25 重庆聚嘉机械有限公司 Tool for machining eccentric hole in planet carrier of special-shaped structure
CN203726151U (en) * 2013-10-08 2014-07-23 大同齿轮(昆山)有限公司 Fixture for processing eccentric hole of gear
CN205096651U (en) * 2015-11-04 2016-03-23 安徽合力股份有限公司 A frock for eccentric T type thread processing of bearing bracket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110695416A (en) * 2019-10-22 2020-01-17 苏州市职业大学 Accompanying device

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