CN203003186U - Expansion mandrel device - Google Patents

Expansion mandrel device Download PDF

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Publication number
CN203003186U
CN203003186U CN 201220587940 CN201220587940U CN203003186U CN 203003186 U CN203003186 U CN 203003186U CN 201220587940 CN201220587940 CN 201220587940 CN 201220587940 U CN201220587940 U CN 201220587940U CN 203003186 U CN203003186 U CN 203003186U
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CN
China
Prior art keywords
expansion sleeve
bullet
cone
main body
mandrel device
Prior art date
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Expired - Lifetime
Application number
CN 201220587940
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Chinese (zh)
Inventor
向维
陈其明
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Ningbo Minth Automotive Parts Research and Development Co Ltd
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Ningbo Minth Automotive Parts Research and Development Co Ltd
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Priority to CN 201220587940 priority Critical patent/CN203003186U/en
Application granted granted Critical
Publication of CN203003186U publication Critical patent/CN203003186U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an expansion mandrel device comprising a main body, a cone-shaped body, an expansion sleeve and a connecting rod. One end of the connecting rod is used for being connected with a hydraulic oil cylinder piston rod, a boss matched with a machine tool flange plate, and a connecting hole are arranged at the left end of the main body, the inner end of the cone-shaped body is inserted into an inner hole of the main body, the outer end of the cone-shaped body is cone-shaped and located outside the main body, a cone-shaped inner cavity which is matched with the cone-shaped outer end of the cone-shaped body is formed in the expansion sleeve, the expansion sleeve comprises a thin wall end and a thick wall end, at least three straight grooves are evenly formed along the outer wall periphery of the expansion sleeve to penetrate through the wall of the expansion sleeve, the expansion sleeve is sleeved and installed outside the cone-shaped outer end of the cone-shaped body, the connecting rod is located at the central axis of the cone-shaped body and penetrates through the cone-shaped body, and the other end of the connecting rod is clamped at the thick wall end of the expansion sleeve; and both the inner end of the cone-shaped body and the main body inner hole matched with the inner end of the cone-shaped body are cone-shaped.

Description

The distending mandrel device
Technical field
The utility model relate to a kind of for lathe seize on both sides by the arms the distending mandrel device of workpiece with on lathe turning be processed into the group roller method.
Background technology
Traditional lathe uses scroll chuck from the periphery holding workpiece of workpiece, and the distending mandrel that occurred afterwards can reach higher concentricity requirement, but require workpiece endoporus must be arranged to be inserted in the distending mandrel from the endoporus holding workpiece of workpiece.
Rolling and processing is that a kind of chipless is processed continuously, to allow metal band-shaped workpiece by force between the upper bottom roller by the roller set that formed by many groups roller, the roller set number of people is to the progressively evolution of roller shape of tail, exert pressure to surface of the work by roller, utilize at normal temperatures the plastic deformation of metal, make workpiece reach the purpose that changes shape and size.Article one, the roller set of rolling and processing production line is comprised of tens rollers usually, and as shown in Figure 7, for a rolling and processing production line is provided, the turning processing capacity of roller is very large; Due to the determine precision rolling and processing precision of roller, so the requirement on machining accuracy of these rollers is higher usually, especially its concentricity requirement is higher.Select suitable clamping apparatus and seize method and reasonable arrangement Tutrning Process on both sides by the arms, very important to the machining accuracy and the working (machining) efficiency that improve roller.
In addition, although the distending mandrel device of all size size that is provided by specialized vendor (as German rom ROHM company) can be provided on market at present, these distending mandrel devices have a style of one's own, and need integral replacing during replacing; When specification of workpieces size frequent changes, need the whole distending mandrel device of frequent integral replacing, very inconvenient.
The utility model addresses the above problem just.
Summary of the invention
Technical problem to be solved in the utility model is for the above-mentioned state of the art, provide a kind of for lathe seize on both sides by the arms the distending mandrel device of workpiece with on lathe turning be processed into the group roller method.
The utility model solves the problems of the technologies described above the technical scheme that adopts:
a kind of distending mandrel device of seizing workpiece for lathe on both sides by the arms, comprise for the main body that connects the lathe ring flange, bullet, expansion sleeve and an end are used for connecting the connecting rod of hydraulic cylinder piston rod, described main body left end is provided with and the boss of lathe ring flange locating hole phase close-fitting and the connecting hole that matches with the lathe flange connecting hole, it is characterized in that, described bullet is inner inserts the main body endoporus and the outer end is tapered is positioned at outside main body, be provided with the conical internal cavity that the tapered outer ends with bullet matches in described expansion sleeve, make described expansion sleeve form thin-walled end and heavy wall end, along described expansion sleeve outer wall even circumferential be provided with at least 3 straight troughs and penetrate its wall thickness, described expansion sleeve is sleeved on the tapered outer ends outside of bullet, described connecting rod is positioned on central axis, pass described bullet, its other end is limited to the heavy wall end of described expansion sleeve.
Described bullet the inner and associated main body endoporus also are taper.
Add a conical sleeve between described bullet the inner and main body endoporus.
The right-hand member of described main body endoporus is provided with internal thread, with thread connecting mode, one connecting ring is installed, and on the right side of described bullet and connecting ring, one end cap is set, and described end cap passes this connecting ring with bolt and is connected with bullet.
Described connecting rod is comprised of two sections of left and right, and middle the setting is threaded, and its threaded connection place is positioned at described bullet.
Described expansion sleeve along its outer wall even circumferential be provided with 6 straight troughs and penetrate its wall thickness.
In two of arbitrary neighborhoods in 6 straight troughs of described expansion sleeve wherein one offer to nearly heavy wall end position and with the circular hole that a diameter is slightly larger than the straight trough width from its thin-walled end and finish, and another is offered to nearly thin-walled end position and with the circular hole that a diameter is slightly larger than the straight trough width from its heavy wall end and finishes.
The method of group roller is processed in turning on lathe, it is characterized in that, comprises the steps:
Step 1, load onto the cylindrical chuck on lathe, one by one with the roller clamping workpiece on chuck, the endoporus of turning processing roller;
Step 2, load onto distending mandrel device as described in claim 1 to 7 any one on this lathe, the diameter of bore size fit of the outside dimension of its expansion sleeve and roller workpiece, one by one with the roller clamping workpiece on expansion sleeve, cylindrical and the end face of turning processing roller; In its process, each roller workpiece first is sleeved on expansion sleeve before turning processing, start described hydraulic cylinder piston rod retraction, and connecting rod drives expansion sleeve and is moved to the left along described bullet, and expansion sleeve is expanded and tightly clamped the roller workpiece; Each roller workpiece starts described hydraulic cylinder piston rod elongation after turning processing, connecting rod drives expansion sleeve and moves right along described bullet, and expansion sleeve shrinks and loosens the roller workpiece, thereby takes off this roller workpiece.
The tapered outer ends of described bullet is pressed the different size configuration and is formed a series, and corresponding expansion sleeve is also pressed the different size configuration and formed a series.
The method of turning processing different size bore work, is characterized in that on lathe, uses as distending mandrel device as claimed in claim 9, when changing the workpiece of different size endoporus, selects to change the suitable described bullet of size and corresponding expansion sleeve.
Adopt taper connection between the main body of the utility model distending mandrel device, bullet, expansion sleeve, all higher than the cylindricality connected mode of non-taper, disassembling, assembling and replacing is more convenient for Workpiece Machining Accuracy, especially its concentricity; When the specification of workpieces size change over, as long as change bullet and expansion sleeve.
Description of drawings
Fig. 1 is the utility model distending mandrel device schematic diagram;
Fig. 2 is the utility model distending mandrel device profile;
Fig. 3 is the lathe ring flange profile relevant with the utility model distending mandrel device;
Fig. 4 is the utility model distending mandrel device main body profile;
Fig. 5 is the left apparent direction schematic perspective view of each component parts released state of the utility model distending mandrel device;
Fig. 6 is the right apparent direction schematic perspective view of each component parts released state of the utility model distending mandrel device;
Fig. 7 is the roller set schematic perspective view relevant with the utility model;
Fig. 8 is the expansion sleeve master pseudosection of the utility model distending mandrel device;
Fig. 9 is the expansion sleeve top view of the utility model distending mandrel device.
The specific embodiment
Fig. 1 is to shown in Figure 6, a kind of distending mandrel device of seizing workpiece for lathe on both sides by the arms, comprise for the main body 2 that connects lathe ring flange 1, bullet 3, expansion sleeve 4 and an end are used for connecting the connecting rod 5 of hydraulic cylinder piston rod, main body 2 left ends are provided with and the boss 7 of lathe ring flange 1 locating hole 6 phase close-fittings and the connecting hole 9 that matches with lathe flange connecting hole 8, bullet 3 inner 10 inserts the endoporus 11 of main bodys 2 and outer end 12 is tapered is positioned at outside main body 2, be provided with the conical internal cavity 13 that the tapered outer ends 12 with bullet 3 matches in expansion sleeve 4, make described expansion sleeve 4 form thin-walled end 14 and heavy wall end 15, as shown in Figure 8, along expansion sleeve 4 outer wall even circumferentials be provided with at least 3 straight troughs 16 and penetrate its wall thickness, as shown in Figure 9, expansion sleeve 4 is sleeved on tapered outer ends 12 outsides of bullet 3, and connecting rod 17 is positioned on central axis, passes bullet 3, and its other end is limited to the heavy wall end 15 of expansion sleeve 4, as Fig. 2, Fig. 5, Fig. 6 and shown in Figure 8, connecting rod 17 right-hand members are diameter greater than the locking end in expansion sleeve 4 heavy wall end 15 apertures.The inner 10 of bullet 3 and associated main body endoporus 11 also are taper; Be connected with cylindricality and compare, taper connection not only disassembling, assembling and replacing is more convenient, and the contact reliability between its joint face improves, and connects more closely, is conducive to improve machining accuracy, the especially concentricity of workpiece.
Can add a conical sleeve 18 between the inner 10 of bullet 3 and the endoporus 11 of main body 2, with avoid directly and bullet 3 when being connected to frequent disassembling, assembling and replacing or accidental impact to the infringement on endoporus 11 surfaces of main body 2, like this, when the inwall of conical sleeve 18 is impaired, as long as change conical sleeve 18.
The right-hand member of the endoporus 11 of main body 2 is provided with internal thread, with thread connecting mode, one connecting ring 19 is installed, and on the right side of bullet 3 and connecting ring 19, an end cap 20 is set, and end cap 20 use bolts pass this connecting ring 19 and are connected with bullet 3.Connecting rod 17 is comprised of two sections of left and right, and middle the setting is threaded, and its threaded connection place is positioned at bullet 3.
Expansion sleeve penetrates the straight trough 16 of its wall thickness take 6 as good along its outer wall even circumferential setting, in two of arbitrary neighborhoods in these 6 straight troughs 16 wherein one offer to nearly heavy wall end 15 positions and finish with the circular hole 20 that a diameter is slightly larger than straight trough 16 width from its thin-walled end 14, and another is offered to nearly thin-walled end 14 positions and finishes with the circular hole 20 that a diameter is slightly larger than straight trough 16 width from its heavy wall end 15.
The tapered outer ends 12 of bullet 3 is pressed the different size configuration and is formed a series, and corresponding expansion sleeve 4 is also pressed the various outer diameter dimensional configurations and formed a series.
Article one, the roller set of rolling and processing production line is comprised of tens rollers usually, and as shown in Figure 7, for a rolling and processing production line is provided, the turning processing capacity of roller is very large; Due to the determine precision rolling and processing precision of roller, so the requirement on machining accuracy of these rollers is higher usually, especially its concentricity requirement is higher.Select suitable clamping apparatus and seize method and reasonable arrangement Tutrning Process on both sides by the arms, very important to the machining accuracy and the working (machining) efficiency that improve roller.Distending mandrel device described in the utility model especially is suitable for turning processing roller.
Use distending mandrel device described in the utility model turning to process the method for roller in groups, adopt at present numerically controlled lathes more,
Article one, the roller set of rolling and processing production line is comprised of tens rollers usually, be fit to first complete the processing of all roller inner holes of this batch, complete one by one again the turning processing of cylindrical and the end face of all rollers of this batch, can effectively guarantee roller precision and working (machining) efficiency like this; Specifically comprise the steps:
Step 1, load onto the cylindrical chuck on lathe, one by one with the roller clamping workpiece on chuck, the endoporus of turning processing roller;
Step 2, expansion sleeve 4 and bullet 3 that preferred dimension is suitable, load onto the distending mandrel device on this lathe, the diameter of bore size fit of the outside dimension of expansion sleeve 4 and roller workpiece, one by one with the roller clamping workpiece on expansion sleeve 4, cylindrical and the end face of turning processing roller; In its process, each roller workpiece first is sleeved on expansion sleeve 4 before turning processing, start described hydraulic cylinder piston rod retraction, and connecting rod 17 drives expansion sleeves 4 and is moved to the left along bullet 3, and expansion sleeve 4 is expanded and tightly clamped the roller workpiece; Each roller workpiece starts described hydraulic cylinder piston rod elongation after turning processing, connecting rod 17 drives expansion sleeve 4 and moves right along bullet 3, and expansion sleeve 4 shrinks and loosens the roller workpiece, thereby takes off this roller workpiece.
Use the utility model distending mandrel device, when changing the workpiece of different size endoporus, as long as select to change the suitable bullet of size and corresponding expansion sleeve, and do not need to change other parts of the utility model distending mandrel device.
In addition, alleged left and right, upper and lower orientation in present specification, only the present patent application denotation of graph is convenient to statement relatively, does not consist of restriction of the present utility model.

Claims (8)

1. one kind is used for the distending mandrel device that lathe is seized workpiece on both sides by the arms, comprise for the main body that connects the lathe ring flange, bullet, expansion sleeve and an end are used for connecting the connecting rod of hydraulic cylinder piston rod, described main body left end is provided with and the boss of lathe ring flange locating hole phase close-fitting and the connecting hole that matches with the lathe flange connecting hole, it is characterized in that, described bullet is inner inserts the main body endoporus and the outer end is tapered is positioned at outside main body, be provided with the conical internal cavity that the tapered outer ends with bullet matches in described expansion sleeve, make described expansion sleeve form thin-walled end and heavy wall end, along described expansion sleeve outer wall even circumferential be provided with at least 3 straight troughs and penetrate its wall thickness, described expansion sleeve is sleeved on the tapered outer ends outside of bullet, described connecting rod is positioned on central axis, pass described bullet, its other end is limited to the heavy wall end of described expansion sleeve.
2. distending mandrel device as claimed in claim 1, is characterized in that, described bullet the inner and associated main body endoporus also are taper.
3. distending mandrel device as claimed in claim 2, is characterized in that, adds a conical sleeve between described bullet the inner and main body endoporus.
4. distending mandrel device as claimed in claim 3, it is characterized in that, the right-hand member of described main body endoporus is provided with internal thread, with thread connecting mode, one connecting ring is installed, on the right side of described bullet and connecting ring, one end cap is set, described end cap passes this connecting ring with bolt and is connected with bullet.
5. distending mandrel device as claimed in claim 1, is characterized in that, described connecting rod is comprised of two sections of left and right, and middle the setting is threaded, and its threaded connection place is positioned at described bullet.
6. distending mandrel device as claimed in claim 1, is characterized in that, described expansion sleeve along its outer wall even circumferential be provided with 6 straight troughs and penetrate its wall thickness.
7. distending mandrel device as claimed in claim 6, it is characterized in that, in two of arbitrary neighborhoods in 6 straight troughs of described expansion sleeve wherein one offer to nearly heavy wall end position and with the circular hole that a diameter is slightly larger than the straight trough width from its thin-walled end and finish, and another is offered to nearly thin-walled end position and with the circular hole that a diameter is slightly larger than the straight trough width from its heavy wall end and finishes.
8. distending mandrel device as described in claim 1 to 7 any one, is characterized in that, the tapered outer ends of described bullet is pressed the different size configuration and formed a series, and corresponding expansion sleeve is also pressed the different size configuration and formed a series.
CN 201220587940 2012-11-02 2012-11-02 Expansion mandrel device Expired - Lifetime CN203003186U (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950305A (en) * 2012-11-02 2013-03-06 宁波敏实汽车零部件技术研发有限公司 Swelling spindle device and method for turning grouped idler wheels
CN105665768A (en) * 2015-11-27 2016-06-15 宁波君灵模具技术有限公司 Tool capable of quickly expanding workpiece
CN106112043A (en) * 2016-08-11 2016-11-16 芜湖金源机械制造有限公司 Be suitable to the elastic expansion sleeve of engine crankshaft damper pulley dynamic balance jig
CN106956014A (en) * 2017-05-12 2017-07-18 广州通泽机械有限公司 A kind of vertex of a cone expansion set component
CN107378561A (en) * 2017-09-08 2017-11-24 中航飞机起落架有限责任公司 One kind is used for undercarriage toggle part by numerical control clamp for machining structure and its application method
CN111590102A (en) * 2019-02-20 2020-08-28 山西汉通鑫宇科技股份有限公司 Flange positioning device and flange positioning method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950305A (en) * 2012-11-02 2013-03-06 宁波敏实汽车零部件技术研发有限公司 Swelling spindle device and method for turning grouped idler wheels
CN105665768A (en) * 2015-11-27 2016-06-15 宁波君灵模具技术有限公司 Tool capable of quickly expanding workpiece
CN105665768B (en) * 2015-11-27 2017-12-01 宁波市北仑鑫林机电模具有限公司 A kind of frock of quick tensioner workpiece
CN106112043A (en) * 2016-08-11 2016-11-16 芜湖金源机械制造有限公司 Be suitable to the elastic expansion sleeve of engine crankshaft damper pulley dynamic balance jig
CN106112043B (en) * 2016-08-11 2017-12-15 芜湖金源机械制造有限公司 Elastic expansion sleeve suitable for engine crankshaft damper pulley dynamic balance jig
CN106956014A (en) * 2017-05-12 2017-07-18 广州通泽机械有限公司 A kind of vertex of a cone expansion set component
CN106956014B (en) * 2017-05-12 2019-02-01 广州通泽机械有限公司 A kind of vertex of a cone expansion set component
CN107378561A (en) * 2017-09-08 2017-11-24 中航飞机起落架有限责任公司 One kind is used for undercarriage toggle part by numerical control clamp for machining structure and its application method
CN111590102A (en) * 2019-02-20 2020-08-28 山西汉通鑫宇科技股份有限公司 Flange positioning device and flange positioning method

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Granted publication date: 20130619

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