CN201596913U - Automatic centering centralizer - Google Patents

Automatic centering centralizer Download PDF

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Publication number
CN201596913U
CN201596913U CN2009202519154U CN200920251915U CN201596913U CN 201596913 U CN201596913 U CN 201596913U CN 2009202519154 U CN2009202519154 U CN 2009202519154U CN 200920251915 U CN200920251915 U CN 200920251915U CN 201596913 U CN201596913 U CN 201596913U
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CN
China
Prior art keywords
centralizer
screw rod
centralizing
hand
matrix
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
CN2009202519154U
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Chinese (zh)
Inventor
刘子洲
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.)
Tianjin Lilin Petroleum Machinery Co Ltd
Original Assignee
Tianjin Lilin Petroleum Machinery 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 Tianjin Lilin Petroleum Machinery Co Ltd filed Critical Tianjin Lilin Petroleum Machinery Co Ltd
Priority to CN2009202519154U priority Critical patent/CN201596913U/en
Application granted granted Critical
Publication of CN201596913U publication Critical patent/CN201596913U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an automatic centering centralizer, which is characterized in that the automatic centering centralizer comprises at least a left and right hand centralizing device which is controlled by the same screw rod, the left and right hand centralizing device comprises screw rods of left and right hand threads, thread pairs, inner and outer centralizing base bodies and centralizing plates, wherein the screw rods of the left and right hand threads are arranged on the two ends, the thread pairs which are formed by a left hand nut and a right hand nut are matched with the screw rods of the left hand thread and the right hand thread, the centralizing plates are arranged in the inner sides of the centralizing base bodies, the inner and the outer centralizing base bodies are respectively linked with the left hand nut and the right hand nut, thereby a processed work piece is centralized through the centralizing plates. The automatic centering centralizer can meet the centralizing demands during the processing, also can adjust at any time during the process of processing the screw rods or core shafts, has simple, convenient and reliable operation and accuracy center position, and can meet the centralizing demands of different specifications of processing parts.

Description

The self-centering centralizer
Technical field
The utility model belongs to the machining technique field, particularly relates to a kind of self-centering centralizer.
Background technology
In mechanical industry, machining slender shaft needs setting upright just of follow-rest to finish, and the performance level of follow-rest directly influences processed workpiece quality.Helicoid hydraulic motor or progressive cavity pump in oil drilling and the use of oil recovery industry, its rotor not only has the feature of slender axles, and the existence of spiral bar in addition on slender axles, existing follow-rest can not satisfy the needs of its process, needs to substitute follow-rest with a kind of centralizer.General two unit follow-rests are to set upright with 2 of follow-rest and 3 of the reaction force formations of turning, and the screw rod of petroleum industry or mandrel are the method processing with milling, are interrupted processing, the reaction force that does not have turning, setting upright of it will lean on centralizer self to finish.In process, cutter or centralizer inevitably have mild wear, will adjust the clamping effect of centralizer at any time, and adjusting centralizer in process need self-centering, could ensure that the work piece quality is unaffected., need a kind of self-centering centralizer in industry, finish the processing of screw rod or mandrel.
The utility model content
The purpose of this utility model aims to provide a kind of self-centering centralizer, make it can satisfy the requirement of setting upright in the machining process, can in screw rod or mandrel process, adjust at any time again, simple to operation reliable, centralized positioning is accurate, and can satisfy the requirement of setting upright of different size processing component.
For realizing that the purpose of this utility model adopts following technical scheme: a kind of self-centering centralizer, it is characterized in that, comprise at least one left and right sides spiral erection device by same screw rod control; Described left and right sides spiral erection device is by the screw rod of the left and right hand thread that is located at two ends, the formed screw thread pair of left-handed nut, right-handed nut that matches with the screw rod of left and right hand thread and inside and outsidely set upright matrix and set upright the inboard righting board that is provided with of matrix and form, the inside and outside matrix of setting upright connects with left-handed nut, right-handed nut respectively, and by righting board workpiece to be machined is realized setting upright.
Described righting board is the adjustable workpiece of thin and thick.
Handwheel is equipped with in the screw rod end of described left and right hand thread, and is cooperated the axial location of the screw rod that locks left and right hand thread with pressure bearing by locking nut.
Described centralizer overall fixed is on the saddle of lathe.
Setting upright of described centralizer is provided with the dovetail slide mechanism between matrix and machine tool dragging plate.
Described dovetail slide mechanism matching part is provided with the adjustment clamp bar.
Described centralizer is set to two groups, and one group is located at process tool the place ahead, and another group is located at the process tool rear.
The beneficial effects of the utility model are:
The self-centering centralizer clamps or the workpiece that gets loose erection device by rotating the coaxial left and right screw rod that revolves, and automatically workpiece is locked in the center.
Owing at same screw rod left and right hand thread is set, once-through operation can make corresponding erection device move simultaneously, has reached self centering effect.
Through after the pre-adjustment, rotate the coaxial left and right screw rod that revolves, just can make the centralizer self-centering, finish setting upright of slender axles workpiece work in-process, overcome the strain of workpiece and the reaction force of process tool, workpiece quality is protected.
The self-centering centralizer can automatically lock the center, and having overcome traditional follow-rest needs the multiple spot adjustment, is not easy the defective of locked-center.
Description of drawings
The structural representation of the self-centering centralizer that Fig. 1 provides for the utility model.
Fig. 2 for the utility model provide be loaded with processing work the time, the front view of forward and backward two groups of centralizer structure schematic diagrames.
Fig. 3 for the utility model provide be loaded with processing work the time, the vertical view of forward and backward two groups of centralizer structure schematic diagrames.
The specific embodiment
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with drawings and embodiments.
Among the figure, 1 is left and right screw rod, and 101 is left-handed part, and 102 are the dextrorotation part; 201 is left-handed nut, and 202 is the right-handed nut; 3 is planker; 401 set upright matrix in being, 402 for setting upright matrix outward; 4011 and 301 is that dovetail cooperates, the 12nd, and the adjustment clamp bar of its cooperation; The 5th, righting board; The 6th, pressure bearing; The 7th, locking nut; The 8th, adjusting handle; 901,902 is respectively inside and outside footing; The 10th, adjustable fixing screw hole; The 11st, workpiece to be machined; The 13rd, the screw shaft bearing; The 14th, the bearing block hold-down screw.
Referring to Fig. 1~Fig. 3, a kind of self-centering centralizer, its two ends are respectively the screw rod 1 of left and right hand thread and left-handed nut with matching 201, right-handed nut's 202 formed screw thread pairs, and the inside and outside matrix 401,402 of setting upright is set upright the matrix inboard righting board 5 is set.Described righting board 5 is the adjustable workpiece of thin and thick.Handwheel 8 is equipped with in screw rod 1 end of described left and right hand thread, and joins 6 axial locations that close the screw rod 1 of locking left and right hand thread by locking nut 7 and pressure bearing.The centralizer overall fixed is on the saddle 3 of lathe.The base of described lathe is provided with adjustable fixing screw hole 10; Clamp bar 12 is adjusted in setting upright that matrix 4011 and 3 of machine tool dragging plates are provided with the dovetail matching mechanism and being provided with at its matching part of described centralizer.
As shown in the figure, the left and right screw rod 1 that revolves constitutes two groups of screw pairs with left-handed nut 201, right-handed nut 202 respectively among the figure.When left and right when revolving screw rod 1 rotation, drive left-handed nut 201, right-handed nut 202 moves to mutually opposite direction simultaneously, promptly outwards moves inwards or simultaneously simultaneously, no matter moves to any position, naturally the center of Xing Chenging is constant all the time, plays self centering effect.Locking nut 7 cooperates with pressure bearing 6, locks the left and right axial location that revolves screw rod 1.For guaranteeing the axial centre invariant position, need to adjust locking nut 7, can lock the left and right axial location that revolves screw rod 1, it is rotated flexibly.Pressure bearing 6 is fixed in screw shaft bearing 13, and screw shaft bearing 13 usefulness bearing block hold-down screws 14 are fastened on the planker 3.In left and right end of revolving screw rod 1 handwheel 8 is housed, by rotating handwheel 8, the left and right screw rod 1 that revolves of convenient drive rotates, and realizes self centering needs.
The inside and outside matrix 401,402 of setting upright links with left-handed nut 201, right-handed nut 202 respectively, realizes setting upright by 5 pairs of workpieces to be machined of righting board 11.Righting board 5 can be fixed in the inside and outside relevant position of setting upright matrix 401,402 with screw.Adjust the thickness of righting board 5 each part, level, upright position are shouldered the effect of fine setting.
The inside and outside matrix 401,402 of setting upright cooperates with planker 3 by dovetail 4011 and 301, adjusts the dovetail gap with clamp bar 12 therebetween.
Inside and outside footing 901,902 and planker 3 disjunctors are provided with long screw 10 respectively at its lower end part, and the whole relative position that changes hold-down screw at long screw 10 of mobile centralizer is realized pre-determined bit to setting upright the center.
Centralizer is set to two groups, and one group is located at process tool the place ahead, and another group is located at the rear, the more effective strong reaction force of resisting process tool.Every group of centralizer adjusted the center is disposable by preset, and in workpiece processing, rotary screw 1 just can change the degree of stepping up to workpiece, and workpiece can be locked in the center.
The centralizer overall fixed with the process tool follow-up, is finished the processing of elongate rod on lathe saddle 3.
The utility model drives corresponding erection device respectively with the left and right hand thread pair of coaxial screw rod and moves in the opposite direction, and erection device is clamped or the workpiece that gets loose.Through after the pre-adjustment, rotate the coaxial left and right screw rod that revolves, just can make the centralizer self-centering, finish setting upright of slender axles workpiece work in-process, overcome the strain of workpiece and the reaction force of process tool, workpiece quality is protected.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (7)

1. a self-centering centralizer is characterized in that, comprises at least one left and right sides spiral erection device by same screw rod control; The formed screw thread pair of left-handed nut, right-handed nut that described left and right sides spiral erection device is matched with the screw rod of left and right hand thread by the screw rod of the left and right hand thread that is located at two ends and inside and outsidely set upright matrix and set upright the inboard righting board that is provided with of matrix and form, the inside and outside matrix of setting upright connects with left-handed nut, right-handed nut respectively.
2. centralizer as claimed in claim 1 is characterized in that, described righting board is the adjustable workpiece of thin and thick.
3. centralizer as claimed in claim 1 is characterized in that, handwheel is equipped with in the screw rod end of described left and right hand thread, and is cooperated the axial location of the screw rod that locks left and right hand thread with pressure bearing by locking nut.
4. centralizer as claimed in claim 1 is characterized in that, described centralizer overall fixed is on the saddle of lathe.
5. centralizer as claimed in claim 1 is characterized in that, setting upright of described centralizer is provided with the dovetail slide mechanism between matrix and machine tool dragging plate.
6. centralizer as claimed in claim 5 is characterized in that, described dovetail slide mechanism matching part is provided with the adjustment clamp bar.
7. as claim 1 or 6 described centralizers, it is characterized in that described centralizer is set to two groups, one group is located at process tool the place ahead, and another group is located at the process tool rear.
CN2009202519154U 2009-12-22 2009-12-22 Automatic centering centralizer Expired - Fee Related CN201596913U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202519154U CN201596913U (en) 2009-12-22 2009-12-22 Automatic centering centralizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202519154U CN201596913U (en) 2009-12-22 2009-12-22 Automatic centering centralizer

Publications (1)

Publication Number Publication Date
CN201596913U true CN201596913U (en) 2010-10-06

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Application Number Title Priority Date Filing Date
CN2009202519154U Expired - Fee Related CN201596913U (en) 2009-12-22 2009-12-22 Automatic centering centralizer

Country Status (1)

Country Link
CN (1) CN201596913U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825522A (en) * 2012-09-24 2012-12-19 上海中曼石油装备有限公司 Method for regulating high points of bent shell and centralizer of screw rod
CN105666220A (en) * 2016-03-07 2016-06-15 洛阳轴研科技股份有限公司 Adjustable dual-function spindle tool loosening and pulling control device
CN107717407A (en) * 2017-10-20 2018-02-23 芜湖市鸿坤汽车零部件有限公司 A kind of pressure pin device
CN108972235A (en) * 2018-07-30 2018-12-11 安徽通全孵化器管理有限公司 Grinding device is used in a kind of processing of auto parts and components
CN108972233A (en) * 2018-07-03 2018-12-11 柳州市钜嘉机械有限公司 A kind of automatic polishing equipment
CN109866289A (en) * 2019-04-02 2019-06-11 六安市恒伟标识有限公司 The high-precision multiaxial type automatic turning technique of timber

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825522A (en) * 2012-09-24 2012-12-19 上海中曼石油装备有限公司 Method for regulating high points of bent shell and centralizer of screw rod
CN105666220A (en) * 2016-03-07 2016-06-15 洛阳轴研科技股份有限公司 Adjustable dual-function spindle tool loosening and pulling control device
CN105666220B (en) * 2016-03-07 2018-01-26 洛阳轴研科技股份有限公司 A kind of adjustable difunctional main shaft pine broaching tool control device
CN107717407A (en) * 2017-10-20 2018-02-23 芜湖市鸿坤汽车零部件有限公司 A kind of pressure pin device
CN108972233A (en) * 2018-07-03 2018-12-11 柳州市钜嘉机械有限公司 A kind of automatic polishing equipment
CN108972235A (en) * 2018-07-30 2018-12-11 安徽通全孵化器管理有限公司 Grinding device is used in a kind of processing of auto parts and components
CN109866289A (en) * 2019-04-02 2019-06-11 六安市恒伟标识有限公司 The high-precision multiaxial type automatic turning technique of timber

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101006

Termination date: 20161222