CN204771709U - Five processing angle mistake proofing positioning fixtures in whole impeller - Google Patents

Five processing angle mistake proofing positioning fixtures in whole impeller Download PDF

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Publication number
CN204771709U
CN204771709U CN201520487554.9U CN201520487554U CN204771709U CN 204771709 U CN204771709 U CN 204771709U CN 201520487554 U CN201520487554 U CN 201520487554U CN 204771709 U CN204771709 U CN 204771709U
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CN
China
Prior art keywords
mistake proofing
alignment pin
oval
positioning fixture
clamping
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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
CN201520487554.9U
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Chinese (zh)
Inventor
吕博鑫
吴雁
郑刚
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Shanghai Institute of Technology
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Shanghai Institute of Technology
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Priority to CN201520487554.9U priority Critical patent/CN204771709U/en
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Publication of CN204771709U publication Critical patent/CN204771709U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a five processing angle mistake proofing positioning fixtures in whole impeller sets up the frock basic hole and the anchor clamps alignment groove of the anchor clamps alignment of being convenient for on the clamping face of positioning fixture base, be equipped with two circular locating pins and an oval mistake proofing locating pin on the clamping face of positioning fixture base, circular locating pin and oval mistake proofing locating pin are equilateral triangle and arrange. The during operation is aimed at three locating pin with the pin mounting hole on impeller ann shape and is installed on anchor clamps clamping plane, and the cork hammer strikes the tie. The positioning core axle is inserted at the center, compresses tightly whole impeller part with gland nut and gasket. These anchor clamps have realized effectively that whole impeller is that the part only could perfect ground clamping on these anchor clamps under the circumstances of the position of three pin and shape perfect fitting, get into lower track manufacturing procedure, realize angle mistake proofing location, reduce the manual operation error, and reduction workman intensity of labour has improved the impeller manufacturing accuracy, has promoted production efficiency.

Description

Integral wheel five-axis robot angle mistake proofing positioning fixture
Technical field
The utility model relates to a kind of integral wheel system part by numerical control manufacturing process device, particularly relates to a kind of in integral wheel milling process for making, road work step before and after accepting, during impeller repeated clamping, and the technique fixture of the anti-mispointing of angle.
Background technology
Integral wheel is as core part in turbomachinery, the guarantee of its performance is played an important role, along with advancing by leaps and bounds of structure technology, material technology and CIM Technology, the structural design of integral wheel system part becomes increasingly complex, and the accuracy of manufacture requires to be tending towards harsh.Especially be very with aerospace industry field, this field Integral impeller blade thinnest part reaches δ min≤ 0.4mm, and blade height (h) is very big with thickness (δ) ratio.Complex-curved narrow and small flow path features is had for this type of and material removing rate reaches the weak hard parts of typical case of more than 90% in whole process for making, usually need between the thick finishing step of manufacture process by repeatedly on platform natrual ageing remove stress.Traditional way is record gauge point coordinate, with cutting tool gripper Set and Positioning bar, take backstay as the angle location that benchmark carries out impeller.The method positioning precision is low, easily causes blade and runner to cross, owes to cut, and the axiality of Leaf positional distribution, position degree, blade halving precision are overproof.Affect the experiment of dynamic balancing in later stage.In addition, traditional targeting scheme inefficiency, manual operation error rate is higher, and positioning precision is unstable, easily causes part rejection, is not suitable for producing in enormous quantities.
Summary of the invention
For effectively avoiding the defect of traditional targeting scheme, when the utility model provides a kind of integral wheel repeated clamping, the fixture of the anti-mispointing of angle.This fixture carries out angle location by two circular pegs, and an oval pin carries out the anti-mispointing of angle.Effectively achieving integral wheel system part only could ideally clamping on this fixture when the position of three pins and shape coordinate completely, enters next step manufacturing procedure, realizes the anti-mispointing of angle.
For achieving the above object, concrete technical scheme of the present utility model is: a kind of integral wheel five-axis robot angle mistake proofing positioning fixture, comprise positioning fixture base, positioning core axle, two circular alignment pins, an oval mistake proofing alignment pin, the clamping face of described positioning fixture base is arranged frock datum hole and the fixture centering groove of being convenient to fixture centering, the clamping face of described positioning fixture base is provided with two circular alignment pins and an oval mistake proofing alignment pin, and described circular alignment pin and oval mistake proofing alignment pin are equilateral triangle arrangement.
Described circular alignment pin height is 1.5 ~ 3 times of diameter, and oval angle mistake proofing alignment pin height is 1 ~ 2 times of oval minor axis; Circular alignment pin and oval angle mistake proofing alignment pin adopt the excessive of H7/m6 to coordinate with alignment pin installing hole tolerance.
Arrange under the installing hole of described circular alignment pin and oval mistake proofing alignment pin and discharge the steam vent that air is convenient to alignment pin installation, the diameter of described steam vent is the 20%-60% of alignment pin installing hole diameter.
The fixture clamping face of described positioning fixture base arranges anti-interference groove; Described anti-interference well width is 10 ~ 35mm, and the degree of depth is 3 ~ 20mm, and notch falls 0.5 ~ 2mm oblique angle, and bottom land falls R=0.5 ~ 5mm fillet.
Described frock datum hole diameter is Ф 10 ~ Ф 20mm, and aperture arranges the bevelling that 45 ° are of a size of 1 ~ 2mm.
Described fixture centering well width is 10 ~ 30mm, and the degree of depth is 2 ~ 10mm, and notch falls 0.5 ~ 2mm oblique angle, and bottom land falls R=0.5 ~ 4mm fillet.
The beneficial effects of the utility model are:
Compared with traditional positioning and clamping method, work in-process uses this kind of fixture in the heart, and its structure is simple, is convenient to fixture centering, effectively can solve the revolving bodies such as integral wheel and the location requirement of the relatively high part of mistake proofing positioning requirements.Fixture positioning precision is relatively high, improves the accuracy of manufacture of impeller.Do not need to carry out secondary centering to part, reduce the part manufacturing deficiency that human factor causes, greatly promote work efficiency rate, the stability of the effective guarantee quality of production.
Accompanying drawing explanation
Fig. 1 is mistake proofing positioning fixture top view;
Fig. 2 is along the whole front sectional view of A-A line cutting positioning fixture in Fig. 1;
Fig. 3 is embodiment integral wheel exploded perspective schematic diagram;
Fig. 4 is integral wheel parts fixation top view;
Fig. 5 is along B-B line cutting parts fixation figure in Fig. 4.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.
As shown in Figures 1 to 5, a kind of integral wheel five-axis robot angle mistake proofing positioning fixture, comprises rounding D, frock datum hole E at the bottom of fixture centering groove A, anti-interference groove B, frock datum hole, steam vent (roll setting hole) G., clamp nut 1, integral wheel part 2, circular alignment pin 3, positioning fixture base 4, scroll chuck 5, positioning core axle 6, pad 7, oval mistake proofing alignment pin 8.
The clamping face of positioning fixture base 4 is arranged frock datum hole E and the fixture centering groove A of being convenient to fixture centering, the clamping face of positioning fixture base 4 is provided with two circular alignment pins 3 and an oval mistake proofing alignment pin 8, the arrangement in equilateral triangle of circular alignment pin 3 and oval mistake proofing alignment pin 8.
The present embodiment is the integral wheel part processed as shown in Figure 3.This routine impeller integral shroud diameter Ф 1=248.2mm, hub diameter Ф 2=169.5mm, thickness 50mm.As shown in Figure 1, 2, use modified after No. 45 rod iron material refine tooling base, bar first through turning, finish-milling plane, finish-milling cylindrical to 150mm, and bores Ф 10mm axis hole, after attack M1.5 internal thread, be convenient to security protection positioning core axle.Use A2 centre drill to press equilateral triangle and bore position, alignment pin installing hole hole, use Ф 3.9mm bit drills steam vent (roll setting hole) G, through hole.Steam vent (roll setting hole) G is expanded with Ф 4mm slotting cutter.Milling alignment pin installing hole, finish-milling oval mistake proofing pin installing hole, transverse 8mm, minor axis 6mm, the dark 5mm of axis hole, ensures corresponding dimensional accuracy and surface roughness, bevelling, aperture.The circular alignment pin installing hole of right boring Ф 6mm, dark 5mm, ensures corresponding size precision and surface roughness, bevelling, aperture.And on Impeller Parts the pin installing hole of finish-milling same size.The wide 10mm of finish-milling dark 3mm fixture centering groove A and wide 15mm dark 5mm internal diameter Ф 55mm anti-interference groove B on fixture clamping face, bottom land arranges R=0.5mm rounding D, notch bevelling.
Refining circular alignment pin 3 and oval mistake proofing alignment pin 8, H7/m6 interference fits more closely when dimensional tolerance gets work.Circular alignment pin 3 is highly 1.5 ~ 3 times of diameter, and oval angle mistake proofing alignment pin 8 is highly 1 ~ 2 times of oval minor axis; Arrange under the installing hole of circular alignment pin 3 and oval mistake proofing alignment pin 8 and discharge the steam vent G that air is convenient to alignment pin installation, the diameter of described steam vent G is the 20%-60% of alignment pin installing hole diameter.
As shown in Figure 4,5, during work, by this frock clamping on scroll chuck 5, be fixed on machining center work top.Rely on backstay and frock datum hole fast aligning clamp central, dial gauge centering fixture flatness≤0.02mm, axiality≤0.02mm, Y-direction centering locating slot.Be installed in fixture clamping plane by pin installing hole peace shape alignment three alignment pins on impeller, cork hammer beats out.Positioning core axle 6 is inserted at center, compresses integral wheel part with clamp nut 1 and pad 7.Control cutter path by numerical control program and carry out the processing of impeller finish-milling.This fixture effectively achieves integral wheel system part only could ideally clamping on this fixture when the position of three pins and shape coordinate completely, enter lower road manufacturing procedure, realize the anti-mispointing of angle, reduce manual operation error, reduce labor strength, improve the impeller accuracy of manufacture, improve production efficiency.

Claims (6)

1. an integral wheel five-axis robot angle mistake proofing positioning fixture, comprise positioning fixture base (4), positioning core axle (6), two circular alignment pins (3), an oval mistake proofing alignment pin (8), it is characterized in that: the clamping face of described positioning fixture base (4) is arranged frock datum hole (E) and the fixture centering groove (A) of being convenient to fixture centering, the clamping face of described positioning fixture base (4) is provided with two circular alignment pins (3) and an oval mistake proofing alignment pin (8), described circular alignment pin (3) and oval mistake proofing alignment pin (8) are arranged in equilateral triangle.
2. integral wheel five-axis robot angle mistake proofing positioning fixture according to claim 1, is characterized in that: described circular alignment pin (3) is highly 1.5 ~ 3 times of diameter, and oval angle mistake proofing alignment pin (8) is highly 1 ~ 2 times of oval minor axis; Circular alignment pin (3) and oval angle mistake proofing alignment pin (8) adopt the excessive of H7/m6 to coordinate with alignment pin installing hole tolerance.
3. integral wheel five-axis robot angle mistake proofing positioning fixture according to claim 1, it is characterized in that: arrange under the installing hole of described circular alignment pin (3) and oval mistake proofing alignment pin (8) and discharge the steam vent (G) that air is convenient to alignment pin installation, the diameter of described steam vent (G) is the 20%-60% of alignment pin installing hole diameter.
4. integral wheel five-axis robot angle mistake proofing positioning fixture according to claim 1, is characterized in that:
The fixture clamping face of described positioning fixture base (4) arranges anti-interference groove (B); Described anti-interference groove (B) width is 10 ~ 35mm, and the degree of depth is 3 ~ 20mm, and notch falls 0.5 ~ 2mm oblique angle, and bottom land falls R=0.5 ~ 5mm fillet.
5. integral wheel five-axis robot angle mistake proofing positioning fixture according to claim 1, is characterized in that:
Described frock datum hole (E) diameter is Ф 10 ~ Ф 20mm, and aperture arranges the bevelling that 45 ° are of a size of 1 ~ 2mm.
6. integral wheel five-axis robot angle mistake proofing positioning fixture according to claim 1, is characterized in that: described fixture centering groove (A) width is 10 ~ 30mm, and the degree of depth is 2 ~ 10mm, and notch falls 0.5 ~ 2mm oblique angle, and bottom land falls R=0.5 ~ 4mm fillet.
CN201520487554.9U 2015-07-08 2015-07-08 Five processing angle mistake proofing positioning fixtures in whole impeller Expired - Fee Related CN204771709U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520487554.9U CN204771709U (en) 2015-07-08 2015-07-08 Five processing angle mistake proofing positioning fixtures in whole impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520487554.9U CN204771709U (en) 2015-07-08 2015-07-08 Five processing angle mistake proofing positioning fixtures in whole impeller

Publications (1)

Publication Number Publication Date
CN204771709U true CN204771709U (en) 2015-11-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111113093A (en) * 2019-12-27 2020-05-08 中国航发湖南南方宇航工业有限公司 Integral impeller clamp
CN111300293A (en) * 2018-12-11 2020-06-19 无锡众鑫模具科技有限公司 Impeller core assembly clamp and production process thereof
CN111906360A (en) * 2020-08-11 2020-11-10 西安交通大学深圳研究院 Nickel-based superalloy closed impeller rough machining method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111300293A (en) * 2018-12-11 2020-06-19 无锡众鑫模具科技有限公司 Impeller core assembly clamp and production process thereof
CN111113093A (en) * 2019-12-27 2020-05-08 中国航发湖南南方宇航工业有限公司 Integral impeller clamp
CN111906360A (en) * 2020-08-11 2020-11-10 西安交通大学深圳研究院 Nickel-based superalloy closed impeller rough machining method

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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: 20151118

Termination date: 20160708