CN205927696U - A clamping fixture for leading pipe part - Google Patents

A clamping fixture for leading pipe part Download PDF

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Publication number
CN205927696U
CN205927696U CN201620996933.5U CN201620996933U CN205927696U CN 205927696 U CN205927696 U CN 205927696U CN 201620996933 U CN201620996933 U CN 201620996933U CN 205927696 U CN205927696 U CN 205927696U
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China
Prior art keywords
pipe part
supporting rod
support bar
clamping fixture
clamping
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CN201620996933.5U
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Chinese (zh)
Inventor
赵鹏
王璟
刘洁
刘禹
石钰
罗武庆
程小宁
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AECC Aviation Power Co Ltd
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AVIC Aviation Engine Corp PLC
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Abstract

The utility model provides a pair of a clamping fixture for leading pipe part includes base, bracing piece and pipe supporting rod, and this clamping fixture at first will treat processing through the last member of pipe supporting rod with lower member and lead the pipe part straightway and step up that this structure is used, easy dismounting, can gather materials on the spot, makes simple and convenient just low price. Adjust to wait to process through the bracing piece simultaneously and lead overhead distance of pipe part and angle problem, can thoroughly neglect the influence of complicated cast to welding quality like this to can by the operator according to self the condition and lead the pipe part state and freely adjust. The centre gripping position that further will lead pipe part is set to circular -arcly, can make to lead pipe part rotation center in welding process and do not take place the skew, along leading the radial circular rotation of pipe part self. Improve welded guide pipe class part operational stability simultaneously, reduced the probability of doing over again and reprocessing, improved the qualified rate of welding of leading pipe part.

Description

A kind of clamping fixture for leading pipe part
Technical field
The utility model is related to lead pipe part welding technology field, specifically a kind of holing clip for leading pipe part Tool, it is applied to caliber and leads pipe part in below Ф 20mm.
Background technology
Have in aero-engine substantial amounts of lead pipe part, the Part No. being directed to is numerous but same piece number only makes mostly With one, therefore, the pipe part processing characteristic of leading of same model is " specification is many, little in batches ".In many model aero-engines Major part lead the welding manner that pipe part all employs inert gas-shielded arc welding.Lead pipe part due to its functional characteristic, Its shape of different piece numbers and complex structure, thickness is different, and length is different, there is not cast identical two zero on the same stage on engine Part, and such situation be then embodied in emphatically caliber be below Ф 20mm lead on pipe part, the conduit quantity of this specification at most, Cast space trend is also various.Although its own weight is less, changeable profile and cast move towards, and cause perhaps to welding A how unpredictable difficult problem.
And supravasal argon-arc welding seam is the circumference along pipe cross-sectional direction, and lead the welding manner of pipe part Mostly be butt welding, at least II grade of welding type, it is therefore desirable to operator need in process with weld seam circle center be The center of circle, rotational parts at the uniform velocity, after process finishing, weld seam uniformly will not allow the problems such as lack of penetration, protection is bad.As The uncontrolled shake of part in process, welding quality is subject to serious impact,
Existing lead pipe part manual argon arc welding positioning method as follows:Any one select location fix a copper coin or Copper-plated steel plate, for conduction, the earth wire clamp of argon arc welding machine is clamped on copper coin, and will be connected with tunger tube welding adapter Be directly anchored on copper coin, then by fixing for place to be welded for tube assembly joint on the adapter, be used herein as welding adapter be Guarantee joint in process can along its own axis rotate while it is ensured that argon gas can be to the back side of conduit butt weld Protected, because conduit class spare part is conduit and weld composition, weld seam is usually located on joint, thereby ensure that The rotational stabilization of joint is it is simply that ensure that the rotational stabilization of weld seam.
Change however as processing environment and condition is it may appear that the basic welding device of pipe part use is led in welding The situation that (welding adapter and electric installation (copper coin)) is nowhere installed or no the time installs, in the case, can only be by welding machine On earth wire clamp be directly sandwiched on part and be easy to striking, but if meeting the situation of voltage instability, weld seam position will exist hits The possibility worn.
Original frock operates it is desirable to operation scene must possess following two conditions:A, must place one piece of copper coin or Copper-plated steel plate, for conduction;B, must by welding adapter be fixed on copper coin, be easy to in tube chamber ventilate and ensure part Stable the rotating along axis of weld seam position energy in welding process.
According to the weld characteristicses leading pipe part, original frock processing has the following disadvantages:
(1) at frock process operation scene once lacking one of two above condition, lead pipe part in welding then It is in runaway condition, operation easier is consequently increased.
(2) controllability is poor:Due to the configurations of pipe part, some tube assembly cast spans are very big, when maximum its Overall length can be grown to 2m, is processed using original auxiliary clamp method, arises that part runs into foreign object in rotary course and does Relate to it is impossible to complete whole circular-rotation, need to weld to ensure to complete the welding of whole piece girth joint by repeated clamping and segmentation, increase The workload of operator.
Content of the invention
What the utility model was created aims to overcome that because conduit class component cast span is very big in prior art, in weldering Repeated clamping part and the deficiency of segmentation welding is needed in termination process.A kind of clamping fixture for leading pipe part is provided.
The technical solution of the utility model is specific as follows:
A kind of clamping fixture for leading pipe part, including base, support bar and conduit supporting rod, described support bar Bottom is fixedly connected with base, and the top of described support bar is connected with described conduit supporting rod, and described conduit supporting rod is upper and lower Two rod members form chopstick structures, and upper supporting rod up is inserted into the little in the hole of support bar, the lower supporting rod in lower section with Strut is welded and fixed.
Preferably, it is provided with Nut pole between upper supporting rod and lower supporting rod, this Nut pole periphery is provided with spring, with Facilitate parts fixation.
Preferably, the material selection steel plate of described upper supporting rod and lower supporting rod or bar replace, and length is according to needing to weld Part shape adjustment.
Preferably, on described, supporting rod and the clamping of lower supporting rod are led one end of pipe part and are welded with grip block, this folder The retaining part holding block is set to arc-shaped, leads pipe part to clamp, and ensures the process in welding rotary guide pipe class part While middle pivot does not shift, electric current is smoothly transferred to and leads on pipe part.
Preferably, described grip block is copper billet.
Preferably, the length 5~10mm longer than the length of lower supporting rod of described upper supporting rod.
Preferably, described lower supporting rod upper supporting rod position of mounting hole along support rod axis move down 25mm~23mm away from Off normal to put and carry out welding positioning.
Preferably, described base offers square groove with the effect of fixed clamp fixture, the width of fluting is according to geometrical clamp The distance that tool position can clamp determines, base offers screw hole, the axial direction of this screw hole and support bar further Axial direction is identical, and screw hole is connected with square groove, is provided with screw rod in screw in the hole, and this screw rod is deep in square groove, in spiral shell The free end of bar is welded with cushion block.
Preferably, the width of described square groove is can 1.5 times~2 times of clamp distance.
Preferably, described base offers and the circular hole supporting shank diameter to match, the cooperation of circular hole and support bar Gap is monolateral 2mm~2.5mm, using floral disc connect base and support bar.
Compared with prior art, the beneficial effects of the utility model are:
This clamping fixture first passes through the upper clamping bar part of conduit supporting rod and lower clamping bar part, and to lead pipe part straight by be processed Line segment steps up, and this structure uses, easy accessibility, can gather materials on the spot, and manufactures easy and cheap.Adjusted by support bar simultaneously To be processed lead pipe part distance from the ground and angular problem, so can thoroughly ignore the shadow of complicated cast welding quality Ring, and freely can be adjusted according to itself situation and conduit class part status by operator.
Further, the retaining part leading pipe part is arranged to arc-shaped, can make to lead pipe part in welding process Middle pivot does not shift, and rotates along leading pipe part itself radial circumference.Which enhance welding and lead pipe part behaviour The stability made, the probability that reducing does over again reprocesses, improve the solder yield leading pipe part.
Brief description
Fig. 1 is the structural representation of clamping fixture.
Fig. 2 is the structural representation of base.
Fig. 3 is the structural representation of base body, and wherein, Fig. 3 a is front view, Fig. 3 b is top view.
Fig. 4 is the structural representation of support bar.
Fig. 5 is the structural representation of single catheter supporting rod.
Fig. 6 is the structural representation of conduit supporting rod and support bar cooperation.
Fig. 7 is the use state figure of clamping fixture.
Fig. 8 is that schematic diagram during pipe part is led in clamping fixture welding.
Wherein:1. clamping bar part 5b. lower clamping bar on base 2. argon gas 3. cushion block 4. support bar 5. conduit supporting rod 5a. Part 6. Nut pole 6a. spring 7. grip block, 8. retaining part, 9. square groove, 10. floral disc 11. desktop or copper coin 12. welding gun 13. lead pipe part
Specific embodiment
A kind of clamping fixture for leading pipe part that the utility model provides, including base 1, support bar 4 and conduit Supporting rod 5.It is split type, including upper clamping bar part 5a and lower clamping bar part 5b that conduit supporting rod 5 is designed as upper and lower two rod members.Conduit clamps Bar 5, with chopsticks as design concept, is the main body clamping pipe fitting using two rod members, in order to press from both sides conduit weld seam annex straightway Tightly, the one end in two rod members has been respectively welded copper grip block 7, and the retaining part 8 of grip block 7 accomplishes arc-shaped, be in order to Pipe part 13 is led in clamping, and it is same to ensure that during welding rotary guide pipe class part 13 pivot does not shift When, electric current smoothly can be transferred to and lead on pipe part 13;Nut pole 6 between two rod members increases by one section of spring 6a, It is to lead pipe part 13 clamping for convenience.The material making two rod members can be selected for steel plate or bar replacement, and the length of rod member can It is adjusted according to pipe part 13 shape of leading of need welding.
The structure of support bar 4 is simple, and its function is to lead the height away from ground after pipe part 13 clamping for adjusting, by In the utility model be applied to caliber be Ф 20mm and below Ф 20mm lead pipe part 13, lighter weight, therefore select one Cut the conduit of a length of 300mm as support bar 4 it is not necessary to other processing is it is only necessary to bore a peace in side near the position of termination Dress hole, the upper clamping bar part 5a insertion of a conduit supporting rod 5 can be realized support bar 4 and conduit supporting rod 5 by this installing hole Connect.And remove institute jagged, prevent from causing unnecessary injury.
Conduit supporting rod up and down, in a upper slightly long 5mm~10mm, slightly long one by being simply inserted into support bar The aperture of 4 sides realizes assembling, and slightly shorter one is then passed through welding and linked together with support bar 4.Lower clamping bar part 5b need to be The distance that upper clamping bar part 5a position of mounting hole moves down 25mm~23mm along support bar 4 axis carries out welding positioning.
The structure of base 1 is similar with card lanthanum, is the square of saddle or rectangular of a bar or plate Milling Machining Body, the part of evolution groove 9 plays the effect of fixed clamp fixture, the distance that the width of fluting can clamp according to stationary fixture position Determine, generally can 1.5 times~2 times of clamp distance, be fixed by the way of floral disc 10 is tightened, in order to strengthen clamping Stability, can be after being screwed into base 1 by floral disc 10, the cushion block 3 (metal blank) being 3~5mm in its afterbody one piece of thickness of welding, Improve its clamping stability in the way of increasing contact area.
Screw hole is offered on base 1, the axial direction of this screw hole is identical with the axial direction of support bar 4 further, And screw hole is connected with square groove 9, in screw in the hole, above-mentioned floral disc 10 is installed, the screw rod of this floral disc 10 is deep in square groove 9, The free end of screw rod is welded with described cushion block 3.One mating holes being matched with support bar 4 diameter is devised on base 1, joins The fit clearance closing hole with support bar 4 is monolateral 2mm~2.5mm, equally adopts floral disc 10 connect base 1 and support bar 4.
When pipe part 13 is led in welding, first whether the position according to the clamping of this fixture can be conductive, selects welding machine earth wire clamp Clip position, such as fixture is clamped on wood or the table edge of plastic material, then directly earth wire clamp is clamped in support bar 4 or bottom On seat 1;As fixture is clamped on copper coin 11, then earth wire clamp is clamped on copper coin 11.Again by the straight tube adjacent with weld seam Load in the clamping fast 7 of conduit supporting rod 5, and clamp and lead pipe part 13.Then, rotary guide pipe class part 13 during simulation welding Process, check following content:1) that leads that can pipe part 13 weld seam position stable rotates along own central axis line;2) conduit class Whether part 13 is interfered.As situation 1 occurs, then adjust clamping position, repeat to clamp;As situation 2 occurs, then can be by adjusting The height of whole support bar 4 or be angularly adjusted.Finally, directly tunger tube is connected to catheter tail, and ventilates, in head Having uniform argon gas 2 to flow out in the tube chamber of (and position while welding) is to be welded.
Below the utility model is described in further details.Referring to Fig. 7, under the processing conditions not having copper coin, to leading Pipe part 13 is welded, pipe sizing:External diameter is Ф 12mm, and wall thickness is 1mm;Welding manner:Pipe-pipe docks;Weld seam etc. Level:I class (acceptance criteria:HB5376-1987);Comprise the following steps that:
1st, stationary fixture:This welding clamping fixture clamping is fixed on desktop 12.
2nd, fixture energising:Directly earth wire clamp is clamped on support bar 4.
3rd, pipe part is led in clamping:Using grip block 7 clamping of conduit supporting rod 5 straight tube adjacent with weld seam, and clamp Lead pipe part 13.
4th, check interference situation:During simulation welding, the process of rotary guide pipe class part 13, checks following content:1) conduit class Part 13 weld seam position can be stable along axis rotate;2) lead whether pipe part 13 is interfered.
5th, solve the problems, such as clamping:Find that the afterbody leading pipe part 13 is interfered by desktop 12, then to support bar 4 in rotation Height Adjustment and being angularly adjusted.
6th, argon gas internal protection:Directly tunger tube is connected to catheter tail, and is passed through the argon gas 2 that flow is 7min/L, Having uniform argon gas 2 to flow out in the tube chamber of head (and position while welding) is to be welded.
7th, manual argon arc welding:Operator one hand torch 12, a hand-held pipe afterbody simultaneously promotes its rotation, progressively to conduit Class part 13 weld seam is welded.

Claims (10)

1. a kind of clamping fixture for leading pipe part it is characterised in that:Including the clamping of base (1), support bar (4) and conduit Bar (5), the bottom of described support bar (4) is fixedly connected with base (1), and the top of described support bar (4) is clamped with described conduit Bar (5) connects, and described conduit supporting rod (5) is that upper and lower two rod members form chopstick structure, and upper supporting rod (5a) up inserts To the little in the hole of support bar (4), the lower supporting rod (5b) in lower section and support bar (4) are welded and fixed.
2. clamping fixture as claimed in claim 1 it is characterised in that:Set between upper supporting rod (5a) and lower supporting rod (5b) It is equipped with Nut pole (6), this Nut pole (6) periphery is provided with spring (6a), lead pipe part (13) clamping to facilitate.
3. clamping fixture as claimed in claim 1 it is characterised in that:Described upper supporting rod (5a) and the material of lower supporting rod (5b) Material is replaced from steel plate or bar, and length leads pipe part (13) Adjusting Shape according to what need welded.
4. clamping fixture as claimed any one in claims 1 to 3 it is characterised in that:On described supporting rod (5a) and under One end that pipe part (13) is led in supporting rod (5b) clamping is welded with grip block (7), and the retaining part (8) of this grip block (7) sets It is set to arc-shaped, leads pipe part (13) to clamp, and ensure in rotation during welding rotary guide pipe class part (13) While the heart does not shift, electric current is smoothly transferred to and leads on pipe part (13).
5. clamping fixture as claimed in claim 4 it is characterised in that:Described grip block (7) is copper billet.
6. clamping fixture as claimed in claim 1 it is characterised in that:The length of described upper supporting rod (5a) is than lower supporting rod (5b) length length 5~10mm.
7. the clamping fixture as described in claim 1 or 6 it is characterised in that:Described lower supporting rod (5b) is at upper supporting rod (5a) The distance and position that position of mounting hole moves down 25mm~23mm along support bar (4) axis carries out welding positioning.
8. clamping fixture as claimed in claim 1 it is characterised in that:Square groove (9) is offered on described base (1) with geometrical clamp Hold the effect of fixture, the width of fluting determines, base offers on (1) further according to the distance that stationary fixture position can clamp Screw hole, the axial direction of this screw hole is identical with the axial direction of support bar (4), and screw hole is connected with square groove (9), in spiral shell In nail, screw rod is installed, this screw rod is deep in square groove (9), is welded with cushion block (3) in the free end of screw rod.
9. clamping fixture as claimed in claim 8 it is characterised in that:The width of described square groove (9) be can clamp distance 1.5 Times~2 times.
10. clamping fixture as claimed in claim 1 it is characterised in that:Described base (1) offers and support bar (4) The circular hole that diameter matches, circular hole is monolateral 2mm~2.5mm with the fit clearance of support bar (4), connects bottom using floral disc (10) Seat (1) and support bar (4).
CN201620996933.5U 2016-08-29 2016-08-29 A clamping fixture for leading pipe part Active CN205927696U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620996933.5U CN205927696U (en) 2016-08-29 2016-08-29 A clamping fixture for leading pipe part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620996933.5U CN205927696U (en) 2016-08-29 2016-08-29 A clamping fixture for leading pipe part

Publications (1)

Publication Number Publication Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108037186A (en) * 2017-11-29 2018-05-15 沈阳工业大学 The passive rail failure detector of magnetostrictive thin film formula
CN110116255A (en) * 2019-05-09 2019-08-13 福尼斯(南京)表面工程技术有限公司 A method of for avoiding stud automation segmentation argon arc welding
CN110814455A (en) * 2019-11-19 2020-02-21 昆山广禾电子科技有限公司 Wire cutting clamp
CN112875536A (en) * 2020-04-07 2021-06-01 郑桂祥 Attached pedestrian passageway and attached operating platform

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108037186A (en) * 2017-11-29 2018-05-15 沈阳工业大学 The passive rail failure detector of magnetostrictive thin film formula
CN108037186B (en) * 2017-11-29 2021-01-22 沈阳工业大学 Magnetostrictive film type passive rail flaw detection device
CN110116255A (en) * 2019-05-09 2019-08-13 福尼斯(南京)表面工程技术有限公司 A method of for avoiding stud automation segmentation argon arc welding
CN110116255B (en) * 2019-05-09 2021-05-14 福尼斯(南京)表面工程技术有限公司 Automatic segmented argon arc welding method for avoiding stud
CN110814455A (en) * 2019-11-19 2020-02-21 昆山广禾电子科技有限公司 Wire cutting clamp
CN112875536A (en) * 2020-04-07 2021-06-01 郑桂祥 Attached pedestrian passageway and attached operating platform

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GR01 Patent grant
CP01 Change in the name or title of a patent holder
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Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province

Patentee after: AECC AVIATION POWER CO., LTD.

Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province

Patentee before: AVIC AVIATION ENGINE CORPORATION PLC