CN204262781U - The fixture of bent body class External Shape processing - Google Patents

The fixture of bent body class External Shape processing Download PDF

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Publication number
CN204262781U
CN204262781U CN201420676180.0U CN201420676180U CN204262781U CN 204262781 U CN204262781 U CN 204262781U CN 201420676180 U CN201420676180 U CN 201420676180U CN 204262781 U CN204262781 U CN 204262781U
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CN
China
Prior art keywords
fore
bent
pagoda
bowls
cone
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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
CN201420676180.0U
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Chinese (zh)
Inventor
赖启武
汤子鑫
余泽并
黄文忠
陈军
赖君平
林宏
赵新
吴昌盛
张�林
郭存堂
宋有龙
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FUJIAN ORDNANCE EQUIPMENT Co Ltd
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FUJIAN ORDNANCE EQUIPMENT Co Ltd
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Priority to CN201420676180.0U priority Critical patent/CN204262781U/en
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Publication of CN204262781U publication Critical patent/CN204262781U/en
Expired - Fee Related legal-status Critical Current
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Abstract

A kind of fixture of bent body class External Shape processing, its main points are, it comprises positioner and clamping device, positioner comprises mandrel, fore-set, fore-set is fixed on the top of mandrel, the mandrel of the other end of fore-set matches with lathe spindle, clamping device comprises pagoda of bowls, bearing, pad, top body, pagoda of bowls is connected with top body by bearing, pad is positioned in the middle of the joint face of bearing and top body, by the fabrication hole of four on top body, bearing and pagoda of bowls can be dismantled easily, the axle of top body tail end matches with tail stock, the internal via shape of pagoda of bowls and the external surface shape of part to be processed match, the inner surface configuration of fore-set external surface shape and part to be processed matches.Bent body class part can load by the utility model easily, and part deformation is little, ensures the machining accuracy of part, and by changing fore-set, pagoda of bowls or top body, realizing the sharp processing of different bent body class part, reaching processing object quickly and easily.

Description

The fixture of bent body class External Shape processing
Technical field
The utility model patent relates to the fixture of machining, especially belongs to the fixture of bent body class External Shape processing.
Background technology
As everyone knows, common bent body class External Shape has taper, spherical, parabolic type etc.This type of part adopts the process form acquisition of punching press, extruding, spinning usually, especially to adopt the mode of spinning process to obtain this type of part for many, the part adopting spinning process to obtain also will remove the processing in overlap, end face and bent surface, groove, hole by machining, according to traditional scroll chuck mode clamping, be difficult to find suitable clamping position, and very easily cause the radial deformation of bent body class part, add difficulty of processing, the machining accuracy of part cannot be ensured.As shown in Figure 1 be part 7, a kind of structural representation of high explosive anti-tank cartridge cavity liner, it is made up of the conical surface of multiple different tapering and transition circle cambered surface, remove overlap, processing upper and lower end face and overall length, adopt traditional mechanical clamping, and crudy is difficult to ensure.
Summary of the invention
The utility model object is to solve the clamping difficulty existed in the processing of bent body class External Shape, provides the convenient clamping of a kind of energy, ensures the fixture of the bent body class External Shape processing of machining accuracy.
The technical scheme that the utility model uses is a kind of fixture of bent body class External Shape processing, its main points are, it comprises positioner and clamping device, positioner comprises mandrel, fore-set, fore-set is fixed on the top of mandrel, the mandrel of the other end of fore-set matches with lathe spindle, clamping device comprises pagoda of bowls, bearing, pad, top body, pagoda of bowls is connected with top body by bearing, pad is positioned in the middle of the joint face of bearing and top body, by the fabrication hole of four on top body, bearing and pagoda of bowls can be dismantled easily, the axle of top body tail end matches with tail stock, the internal via shape of pagoda of bowls and the external surface shape of part to be processed match, the inner surface configuration of fore-set external surface shape and part to be processed matches.
The above-mentioned purpose of the utility model patent is achieved in that the positioner be made up of mandrel, fore-set loads in lathe main axis hole, and this device together rotates in company with main shaft.Form clamp system by pagoda of bowls, bearing, pad, top body, this device loads tail stock, and pagoda of bowls together can be rotated in company with bearing.Positioner together rotates in company with main shaft, and bent body class part is placed on fore-set, and clamp system moves ahead under the effect of tailstock handle, is combined with part, and under frictional force effect, fore-set, part, pagoda of bowls together rotate in company with main shaft.Conveniently can excise the large end overlap of part with lathe tool, control overall length, also can consider process window introversion body class External Shape to be worth doing by car easily.
The utility model employs the upper and lower mould theory in Sheet Metal Forming Technology in the design of frock clamp, utilizes pagoda of bowls and fore-set are supported by part and clamp, and utilizes fore-set to ensure the intensity of part, to prevent part deformation.
The outer surface of top body has process window.Lathe tool can be stretched into easily like this, small end (bulb) position of processing parts, also can process bent body class External Shape, can also meet the requirement of bent body class piece surface needs processing to be processed, by process window design at place to be processed, all the other places are fixed and clamped.
The outer surface of top body has process window, observation panel, chip removal mouth.
By top and the piece surface of process window energy processing parts.
The internal via shape of described pagoda of bowls and the external surface shape of part to be processed match, and refer to and select the outer surface of the part to be processed without the need to processing to match with pagoda of bowls as clamping area, to hold as well close to large.The contact surface of pagoda of bowls and part is larger, and stressed less, part deformation is little.
The internal via shape of described pagoda of bowls is single tapering.Make simple.
The height of fore-set is at least the 1/4-1/2 of inner bore of part height.Owing to wanting the top of processing parts, but part top endoporus in Fig. 1 is less, and too top pressure is too large, easily causes part deformation, and also easily causes location unstable, so gap is left on top.
The top of fore-set is at least at top 1/4 place of inner bore of part.
When for finished surface being the part of the conical surface composition of the different tapering of multistage, fore-set is divided into the cone of two sections of different taperings, the conical surface at first paragraph cone and part top matches, second segment cone is selected and the mating surface of part is arrive the conical surface stable between large end in the middle part of part, the longer the better with first paragraph cone span, by the mode being processed into technology groove, all the other ensure that fore-set external diameter is less than the internal diameter of part, pagoda of bowls matches with second segment cone.
Surface is had to the part of different tapering, if location is unstable or locating surface is too little to use the fore-set of single tapering to cause, part stress is large, the cone of the different taperings matched from part by two sections to support part, fore-set is longer for the mating surface span of part, supports more stable, selects the conical surface that two spans of part are large as the supporting surface of fore-set, remaining part technology groove is prevented contact, location can be avoided on stable basis.
Fore-set is divided into the cone of two sections of different taperings, first paragraph cone top matches with first of inner bore of part conical surface from 1/10 place of inner bore of part tip height, second segment cone matches with second conical surface of inner bore of part, be technology groove between first paragraph cone and second segment cone, to dodge the transition arc between inner bore of part first conical surface and second conical surface.
Fore-set is divided into the cone of two sections of different taperings, and first paragraph cone top matches with first of inner bore of part conical surface from 1/10 place of inner bore of part tip height, and second segment cone is in piece surface need process place.
Bent body class part can load by the utility model easily, bent body class part to be processed is fixedly clamped with coordinating of fore-set by pagoda of bowls, be out of shape little, ensure the machining accuracy of part, and by changing fore-set, pagoda of bowls or top body, realize the sharp processing of different bent body class part, reach processing object quickly and easily.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of high explosive anti-tank cartridge cavity liner
Fig. 2 is using state figure of the present utility model
Fig. 3 is the A-A profile of Fig. 2
Fig. 4 is the structural representation of mandrel and fore-set
Wherein: top body 61 process window 62 observation panel 63 chip removal mouth 64 fabrication hole 7 part of 1 mandrel 2 fore-set 21 first paragraph cone 22 second segment cone 23 technology groove 3 pagoda of bowls 4 bearing 5 pad 6.
Detailed description of the invention
Be described in detail the utility model below in conjunction with view, the following examples can make professional and technical personnel more understand the utility model, but do not limit the utility model in any form.
As Fig. 1, shown in 2, a kind of fixture of bent body class External Shape processing, it comprises positioner and clamping device, positioner comprises mandrel 1, fore-set 2, fore-set 2 is fixed on the top of mandrel 1, the mandrel of the other end of fore-set 2 matches with lathe spindle, clamping device comprises pagoda of bowls 3, bearing 4, pad 5, top body 6, pagoda of bowls 3 is connected with top body 6 by bearing 4, pad 5 is positioned in the middle of the joint face of bearing 4 and top body 6, by the fabrication hole of four on top body 64, bearing 4 and pagoda of bowls 3 can be dismantled easily, the axle of top body 6 tail end matches with tail stock, the outer surface of top body 6 has process window 61, observation panel 62, chip removal mouth 63, in figure, the angle of circumference of process window 61 is 110 °, the angle of circumference of observation panel 62 is 50 °, the angle of circumference of chip removal mouth 63 is 50 °, the angle of circumference at mutual interval is 50 °, the internal via shape of pagoda of bowls 3 and the external surface shape of part to be processed match, generally select the outer surface of the part to be processed without the need to processing to match with pagoda of bowls 3 as clamping area, to hold as well close to large, the internal via shape of usual pagoda of bowls 3 is single tapering.The inner surface configuration of fore-set 2 external surface shape and part to be processed matches.Fore-set is longer, more stable to the support of part, the length of fore-set 2 is at least the 1/4-1/2 of inner bore of part height, too shortly can form cantilever beam, and the stability of impact clamping, the top of fore-set 2 is at least at top 1/4 place of inner bore of part, and part top endoporus is less, too too large by top pressure, easily cause part deformation, and also easily cause location unstable, so gap is left on top.When for finished surface being the part of the conical surface composition of the different tapering of multistage, fore-set 2 is divided into the cone of two sections of different taperings, first paragraph cone 21 matches with the conical surface at part top, second segment cone 22 is selected and the mating surface of part is arrive the conical surface stable between large end in the middle part of part, the longer the better with first paragraph cone 21 span, by the mode being processed into technology groove 23, all the other ensure that fore-set external diameter is less than the internal diameter of part, pagoda of bowls 3 matches with second segment cone 22.
Embodiment of the present utility model is for processing part as shown in Figure 1, as long as remove overlap, processing upper and lower end face and overall length, fore-set 2 is divided into the cone of two sections of different taperings, match with first of inner bore of part conical surface in first paragraph cone 21 top from 1/10 place of inner bore of part tip height, second segment cone 22 matches with second conical surface of inner bore of part, be technology groove 23 between first paragraph cone 21 and second segment cone 22, to dodge the transition arc between inner bore of part first conical surface and second conical surface.
Surface is also needed to the part of working groove, fore-set 2 is divided into the cone of two sections of different taperings, match with first of inner bore of part conical surface in first paragraph cone 21 top from 1/10 place of inner bore of part tip height, second segment cone 22 is in piece surface need process place.
Operation principle of the present utility model: the positioner be made up of mandrel 1, fore-set 2 loads in lathe main axis hole, and this device together rotates in company with main shaft.Form clamp system by pagoda of bowls 3, bearing 4, pad 5, top body 6, this device loads tail stock, and pagoda of bowls 3 together can be rotated in company with bearing 4.
Positioner together rotates in company with main shaft, and bent body class part is placed on fore-set 2, and clamp system moves ahead under the effect of tailstock handle, is combined with part, and under frictional force effect, fore-set, part, pagoda of bowls together rotate in company with main shaft.Conveniently can excise the large end overlap of part with lathe tool, control overall length.Lathe tool can be stretched into easily from process window, small end (bulb) position of processing parts, also can consider visible bent body class External Shape in process window to be worth doing by car easily.Can also meet the requirement of bent body class piece surface needs processing to be processed, by process window design at place to be processed, all the other places are fixed and clamped.

Claims (10)

1. the fixture of a bent body class External Shape processing, it is characterized in that: it comprises positioner and clamping device, positioner comprises mandrel (1), fore-set (2), fore-set (2) is fixed on the top of mandrel (1), the mandrel of the other end of fore-set (2) matches with lathe spindle, clamping device comprises pagoda of bowls (3), bearing (4), pad (5), top body (6), pagoda of bowls (3) is connected with top body (6) by bearing (4), pad (5) is positioned in the middle of the joint face of bearing (4) and top body (6), by the fabrication hole of four on top body, bearing (4) and pagoda of bowls (3) can be dismantled easily, the axle of top body (6) tail end matches with tail stock, the internal via shape of pagoda of bowls (3) and the external surface shape of part to be processed match, the inner surface configuration of fore-set (2) external surface shape and part to be processed matches.
2. the fixture of a kind of bent body class External Shape processing according to claim 1, is characterized in that: the outer surface of top body (6) has process window (61).
3. the fixture of a kind of bent body class External Shape processing according to claim 2, is characterized in that: the outer surface of top body (6) has process window (61), observation panel (62), chip removal mouth (63).
4. the fixture of a kind of bent body class External Shape processing according to claim 1, it is characterized in that: the described internal via shape of pagoda of bowls (3) and the external surface shape of part to be processed match, refer to and select the outer surface of the part to be processed without the need to processing to match with pagoda of bowls (3) as clamping area, to hold as well close to large.
5. the fixture of a kind of bent body class External Shape processing according to claim 4, is characterized in that: the internal via shape of described pagoda of bowls (3) is single tapering.
6. the fixture of a kind of bent body class External Shape processing according to claim 1, is characterized in that: the length of fore-set (2) is at least the 1/4-1/2 of inner bore of part height.
7. the fixture of a kind of bent body class External Shape processing according to claim 6, is characterized in that: the top of fore-set (2) is at least at top 1/4 place of inner bore of part.
8. the fixture of a kind of bent body class External Shape processing according to claim 6, it is characterized in that: when for finished surface being the part of the conical surface composition of the different tapering of multistage, fore-set (2) is divided into the cone of two sections of different taperings, first paragraph cone (21) matches with the conical surface at part top, second segment cone (22) is selected and the mating surface of part is arrive the conical surface stable between large end in the middle part of part, the longer the better with first paragraph cone (21) span, by the mode being processed into technology groove (23), all the other ensure that fore-set external diameter is less than the internal diameter of part, pagoda of bowls (3) matches with second segment cone (22).
9. the fixture of a kind of bent body class External Shape processing according to claim 8, it is characterized in that: fore-set (2) is divided into the cone of two sections of different taperings, match with first of inner bore of part conical surface in first paragraph cone (21) top from 1/10 place of inner bore of part tip height, second segment cone (22) matches with second conical surface of inner bore of part, be technology groove (23) between first paragraph cone (21) and second segment cone (22), to dodge the transition arc between inner bore of part first conical surface and second conical surface.
10. the fixture of a kind of bent body class External Shape processing according to claim 6, it is characterized in that: fore-set (2) is divided into the cone of two sections of different taperings, match with first of inner bore of part conical surface in first paragraph cone (21) top from 1/10 place of inner bore of part tip height, second segment cone (22) is in piece surface need process place.
CN201420676180.0U 2014-11-13 2014-11-13 The fixture of bent body class External Shape processing Expired - Fee Related CN204262781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420676180.0U CN204262781U (en) 2014-11-13 2014-11-13 The fixture of bent body class External Shape processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420676180.0U CN204262781U (en) 2014-11-13 2014-11-13 The fixture of bent body class External Shape processing

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Publication Number Publication Date
CN204262781U true CN204262781U (en) 2015-04-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104476226A (en) * 2014-11-13 2015-04-01 福建兵工装备有限公司 Contour processing clamp for bending part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104476226A (en) * 2014-11-13 2015-04-01 福建兵工装备有限公司 Contour processing clamp for bending part

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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: 20150415

Termination date: 20201113