CN204770045U - Tube -bending machine - Google Patents
Tube -bending machine Download PDFInfo
- Publication number
- CN204770045U CN204770045U CN201520498192.3U CN201520498192U CN204770045U CN 204770045 U CN204770045 U CN 204770045U CN 201520498192 U CN201520498192 U CN 201520498192U CN 204770045 U CN204770045 U CN 204770045U
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- Prior art keywords
- mold
- bending machine
- curved surface
- spinneret
- main shaft
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Abstract
The utility model provides a tube -bending machine, include: the main shaft and with the fixed mould that links to each other in main shaft side to and fix the drive structure that links to each other with the spindle nose, the mould includes a fixed mould and a plurality of removals moulds of counterpointing and linking to each other with fixed mould, and fixed mould is equipped with an in succession fixed mould contact curved surface, and the corresponding position of a plurality of removal moulds all is equipped with continuous removals mould contact curved surface, and fixed mould and the fixed back that links to each other of a plurality of removals moulds, and fixed mould contact curved surface and removal mould contact the curved surface can seamless lock, the component tub passageway of weaving silk. The utility model provides a scheme has the fixed mould and removal mould of continuous curved surface through the setting, form tub passageway of weaving silk for system production can bend to the pipe of weaving silk in tub passageway of weaving silk, and because the curved surface is continuous, so, the curve of the pipe of can accurate control weaving silk, the smooth -going smoothness of curve transition of the pipe of guaranteeing to weave silk, the continuous ripple disable of camber obtains the higher curved pipe of weaving silk of making the precision.
Description
Technical field
The utility model relates to spinning tube bending former technical field, refers to a kind of bending machine especially.
Background technology
Laying head is the visual plant in high-speed wire production line unit, and its main movement process is: rotary motion, by a pair Helical Bevel Gear, is delivered in the hollow shaft of Laying head by motor.The steel of finishing mill of high-speed wire rod mill roll forming are pinched by pinch roll, enter in the Laying head hollow shaft of High Rotation Speed, then penetrate in spinneret, through spinneret stress deformation.Steel are moved by high-speed straight-line and become the circle of less stationary, are scattered on air-cooled roller-way, then become wire coiling, the wire rod be namely commonly called as after packing.
The parts making wire rod be out of shape lopping in Laying head are spinneret, are three-dimensional Anomalistic space curve.Spinneret has a calibration curve in theory, and the actual spinneret bent should be close with calibration curve to the full extent.Require when manufacturing spinneret that spinneret line smoothing is smooth-going, without high point, each section of excess smoothness, reduces irregular fluctuation when wire rod runs in spinneret and disturbance.If the spinneret curve of reality and theoretical standard curve deviation excessive, then Laying head can be caused to weave silk disorder, coil packing, collect difficulty, affect high line rhythm of production and coil product appearance quality.
The precision of spinneret bending machine determines that spinneret integrated curved bends the fine or not direct factor of effect, and traditional bending machine is made up of (see Fig. 1) main shaft, segmented bracket and drive system.Bending machine have chosen several coordinate points on spinneret calibration curve when designing, at the anti-local outline pushing away spinneret of individual coordinate points, and set up segmented bracket according to outline.Segmented bracket there is fixing gripping mechanism, for clamping spinneret at this coordinate position.Finally bending shaping spinneret curve is exactly the SPL that the coordinate points determined by several segmented brackets is formed.
Spinneret to bend process as follows: inside and outside footpath straight tube yield strength after heating reaches uniform temperature up to specification reduces.It is fixed one end by operator on bending machine, and the other end, along the distortion of several curved surface bracket flexes, forms space curve.Each curved surface bracket there is fixing gripping mechanism, the spinneret after bending is located.After cooling after a while, spinneret reaches normal temperature, and shape is fixed (see Fig. 2 and Fig. 3).
This spinneret bending machine mainly produces in following two to spinning tube bending Accuracy:
1, owing to adopting segmented bracket, discontinuous to the actual control bending curve of spinneret.This bending machine can control the coordinate points on spinneret curve with degree of precision at some bracket locations places.But between two brackets, the curve tendency of spinneret only can rely on operator's manual control curve tendency in the process of bending.Therefore the Curvature varying of spinneret curve is difficult to ensure uniformly continous.
2, each fixing gripping mechanism bracket contacted with spinneret is generally V-type or circular section, and shorter with spinneret contact length.Spinneret clamps with this gripping mechanism after thermal bending, because spinneret is high Cr, Ni, Mo alloy material seamless hot-finished tube, in cooling procedure, be subject to comparatively severe deformation effect of elastic resistance can produce certain distortion, make the actual spinneret produced depart from standard cast curve.
As from the foregoing, it is wayward that spinneret curve in the process of spinneret produced by spinneret bending machine of the prior art, and spinneret is yielding, and the spinning tube bending precision obtained is low, cannot satisfy the demands.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bending machine, solves the problem that in prior art, spinning tube bending precision is low.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of bending machine, comprising:
Main shaft and the mold be fixedly linked with described main shaft side, and the drives structure be fixedly linked with described spindle nose;
The multiple mobile mold that described mold comprises a fixing mold and is connected with described fixing mold contraposition, described fixing mold is provided with one and fixes mold contact surface continuously, the correspondence position of described multiple mobile mold is equipped with a continuous moving mold contact surface, and after described fixing mold and described multiple mobile mold be fixedly linked, described fixing mold contact surface and mobile mold contact surface can seamlessly fasten, and form spinneret passage.
Alternatively, be fixedly linked by end face type flange bolt between described drives structure and main shaft.
Alternatively, described drives structure is rotaring wheel structure.
Alternatively, the fixing mold in described mold is fixedly linked by welding and described main shaft side.
Alternatively, the fixing mold in described mold is welded on described main shaft side by bending steel plate.
Alternatively, the first side of described fixing mold and the first side of described mobile mold are rotatably connected by hinge structure, and the second side of described fixing mold and the second side of described mobile mold are fixedly linked by locking mechanism.
Alternatively, the second side of described fixing mold and the second side of described mobile mold are equipped with tapped through hole, and described locking mechanism comprises screw bolt and nut, and described bolt is arranged in described tapped through hole, and is undertaken fastening by described nut.
Alternatively, described fixing mold comprises the first mother metal portion and first and increases material portion, and described first mother metal portion is provided with the first preliminary curved surface, and described first increases material portion forms described fixing mold contact surface on the described first preliminary curved surface basis;
Described mobile mold comprises the second mother metal portion and second and increases material portion, and described second mother metal portion is provided with the second preliminary curved surface, and described second increases material portion forms described mobile mold contact surface on the described second preliminary curved surface basis.
Alternatively, the material in described first mother metal portion and the second mother metal portion is mild steel.
Alternatively, the material of described main shaft is heat-resisting alloy steel.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, described bending machine has the fixing mold of continuous curve surface and mobile mold by arranging, form spinneret passage, make spinneret to carry out bending production in spinneret passage, and due to curved surface be continuous print, so, the curve of spinneret can be controlled accurately, ensure that the curve transition of spinneret is smooth-going smooth, continual curvature ripple disable, obtains the higher spinneret bending precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing bending machine;
Fig. 2 is the spinneret front elevational schematic that existing bending machine is produced;
Fig. 3 is the spinneret schematic side view that existing bending machine is produced;
Fig. 4 is that structural representation faced by the bending machine of the utility model embodiment;
Fig. 5 is that the fixing mold of the utility model embodiment coordinates schematic diagram with main shaft;
Fig. 6 is the bending machine stravismus structural representation of the utility model embodiment;
Fig. 7 is Fig. 6 centre circle inner structure enlarged diagram;
Fig. 8 is the fixing positioner structure schematic diagram of the utility model embodiment;
Fig. 9 is the mobile positioner structure schematic diagram of the utility model embodiment.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model, for the low problem of spinning tube bending precision in existing technology, provides a kind of bending machine, as shown in Fig. 4 to Fig. 9, comprising:
Main shaft 1 and the mold 2 be fixedly linked with described main shaft 1 side, and the drives structure 3 be connected with described main shaft 1 end winding support;
The multiple mobile mold 5 that described mold 2 comprises a fixing mold 4 and is connected with the contraposition of described fixing mold 4, described fixing mold 4 is provided with one and fixes mold contact surface 6 continuously, the correspondence position of described multiple mobile mold 5 is equipped with a continuous moving mold contact surface 7, and after described fixing mold 4 and described multiple mobile mold 5 be fixedly linked, described fixing mold contact surface 6 can seamlessly fasten with mobile mold contact surface 7, forms spinneret passage.
The described bending machine that the utility model embodiment provides has the fixing mold of continuous curve surface and mobile mold by arranging, form spinneret passage, spinneret is made to carry out bending production in spinneret passage, and due to curved surface be continuous print, so, the curve of spinneret can be controlled accurately, ensure that the curve transition of spinneret is smooth-going smooth, continual curvature ripple disable, obtains the higher spinneret bending precision.
Wherein, as shown in Figure 4 and Figure 5, be fixedly linked between described drives structure 3 and main shaft 1 by end face type flange bolt, described drives structure 3 is preferably rotaring wheel structure, by artificial force.
Concrete, as shown in Figure 6, the fixing mold 4 in described mold 2 is fixedly linked by welding and described main shaft 1 side, and in order to increase bonding strength and service life, the fixing mold 4 in described mold 2 is welded on described main shaft 1 side by bending steel plate.
Object is coordinated preferably in order to reach, as shown in Figure 4 and Figure 6, first side of described fixing mold 4 and the first side of described mobile mold 5 are rotatably connected by hinge structure 8, and the second side of described fixing mold 4 and the second side of described mobile mold 5 are fixedly linked by locking mechanism 9.
Concrete, as shown in Figure 8 and Figure 9, the second side of described fixing mold 4 and the second side of described mobile mold 5 are equipped with tapped through hole 10, and described locking mechanism comprises screw bolt and nut, described bolt is arranged in described tapped through hole 10, and is undertaken fastening by described nut.
More specifically, as shown in Figure 7 to 9, described fixing mold 4 comprises the first mother metal portion 11 and first and increases material portion 12, and described first mother metal portion 11 is provided with the first preliminary curved surface 13, and described first increases material portion 12 forms described fixing mold contact surface 6 on the described first preliminary curved surface 13 basis;
Described mobile mold 5 comprises the second mother metal portion 14 and second and increases material portion 15, and described second mother metal portion 14 is provided with the second preliminary curved surface 16, and described second increases material portion 15 forms described mobile mold contact surface 7 on the described second preliminary curved surface 16 basis.
It should be noted that, the material in described first mother metal portion and the second mother metal portion need elect mild steel (No. 20 steel or No. 30 steel) as; The material of described main shaft need elect heat-resisting alloy steel as.
Below the manufacture technics flow process of the bending machine that the utility model embodiment provides and operation principle are described.
1, first theory calculate obtains spinneret calibration curve
Spinneret calibration curve can be obtained by theory calculate, analog simulation method, or by obtaining the accurate mapping of existing standard spinneret.The adquisitiones of spinneret calibration curve is not discussed at this.
2, Practical computer teaching spinneret calibration curve threedimensional model
After obtaining theoretical curve, 3 d modeling software can be utilized in a computer, using spinneret calibration curve as known conditions, generate spinneret calibration curve threedimensional model in a computer: according to spinneret internal diameter d, outer diameter D, obtains the three-dimensional entity model of spinneret, this theoretical model curved surface with
Represent, also obtain this model by methods such as mappings.
3, by spinneret outline curved surface, computer is counter pushes away spinning tube bending mold (mold in bending machine) space three-dimensional model
After obtaining spinneret calibration curve threedimensional model in a computer, based on spinneret outline continuous curve surface, utilize Three-dimensional Design Software, the anti-spinning tube bending mold three-dimension curved surface that to push away with spinneret outer wall be boundary surface, sets up continuous continual spinning tube bending mold three-dimensional space model; Be back-calculated to obtain the space three-dimensional model of fixing mould for bending and mobile mould for bending respectively.
4, utilize laser 3D to increase material manufacturing technology, manufacture mould for bending 3D solid
After being fixed the space three-dimensional model of pipe bending shoe, mobile pipe bending shoe, at lower cost, the mother metal of the fixing mold of lower accuracy processing and mobile mold, mold mother metal curved surface is fixed respectively
With mobile mold mother metal curved surface
Pipe bending shoe space three-dimensional model data being imported to laser 3D increases in material manufacturing system software, with hybrid alloys powder as increasing material raw material, the basis of mother metal is merged the fixing mold increasing material curved surface generating and meet spinneret outer wall profile
And the increasing material curved surface of mobile mold
In this process, the base surface of mother metal combines together with increasing material:
Mould for bending is divided into fixing mold and mobile mold two parts, each mold comprises mother metal and increases material two kinds of materials.
The preparation of 4.1 mother metals: high efficiency laser 3D increases material manufacturing technology, needs to prepare mother metal for increasing material.The mother metal of spinneret bending machine is exactly continuous curve surface entity bending machine having certain interval with spinneret outer wall, as shown in the label 11 and 14 in Fig. 3.Mother metal can be obtained by simple machining or artificial pattern, and the accuracy of manufacture of mother metal requires lower.
The increasing material of 4.2 mould for bendings manufactures: the pipe bending shoe space three-dimensional model data the 3rd step obtained imports to laser 3D and increases in material manufacturing system software, software will according to factors such as laser facula size, laser output power, metal dust conveying capacities, and planning calculates the hot spot run trace generating required three-dimension curved surface.Utilize existing mature 3D laser gain material manufacturing technology, use hybrid alloys powder as increasing material raw material, the basis of mother metal is merged the increasing material generating and meet spinneret outer wall profile.Coordinate multi-degree-of-freemechanical mechanical arm, can ensure to increase material one-shot forming.
5, the inspection of curved surface and finishing
According to 1-4 step, the mold contact surface that spinneret on bending machine is shaping can be generated: fixing mold is identical with the production method of mobile mold.Be arranged on main shaft of pipe bender by fixing mold, mobile mold is divided into some sections, and fixes with bearing pin and fixing mold contraposition, compresses, namely form the spinneret angle pipe equipment of continuous curve surface during bend pipe operation by the mode such as wedge, bolt.
In order to ensure the high accuracy of the mold curved surface that laser gain material produces, need detect this curved surface and calibrate.The space accuracy method such as available contact formula three-dimensional, check
With theory target curved surface
Matching degree, and reconditioning increases material mold curved surface within the scope of allowable error.
Be described with contact three-dimensional method: adopt Contacting three coordinates measurement instrument, chosen some detection positions in advance, and calculated the Space Theory coordinate value of each position; And after through three-coordinates measuring machine detect obtain this position actual coordinate data.Theoretical coordinate data and Measured Coordinates data are contrasted, as found to exceed error allowed band, then needs to carry out finishing reconditioning, and again calibrate.
Fixing mold is arranged on main shaft of pipe bender, and alignment pin and hold down gag are set for mobile mold, guarantee that mobile mold and fixing mold have higher positioning precision, and reliable thrust, the segmented bracket in Fig. 1 is replaced with this mold.Fixing mold now and mobile mold have been spinneret total length continuous print space curves.
The flow process that spinneret produced by the bending machine utilizing the utility model embodiment to provide is as follows:
After the satisfactory spinneret straight tube in inside and outside footpath is heated to assigned temperature, arrival end is fixing on bending machine, is bent gradually along the fixing mold on bending machine by initial segment, often after bending one section, mobile mold need be fixed, fastened, avoid spinneret STRESS VARIATION to cause shape to rebound; After spinneret total length is bending according to fixing mold, all compress mobile mold.At room temperature make spinneret cooling and shaping, check mold and spinneret outer wall gap at any time; After cooling completely, unclamp mobile mold, take off and bend successful spinneret.
The feature of the bending machine that the utility model embodiment provides is: mold curved surface increases material manufacture method by laser 3D and obtains, and the parameter of curved surface can adjust by manual control before manufacture; The uniformity of the mold three-dimension curved surface that the manufacture of laser 3D increasing material obtains and spinneret calibration curve is better; The actual curved surface obtained
Can with target surface
There is higher registration; Compared with bending machine in the past, the pipe bending shoe that this bending machine uses is total length continuous print space curved surface, uniform resistance of deformation is subject in spinning tube bending and type-approval process, the spinneret curvature bent out is continuously smooth, can not depart from because of actual spinneret curve and calibration curve and affect the effect of weaving silk of Laying head.
In sum, the bending machine that the utility model embodiment provides overcomes original spinneret bending machine cannot the drawback of continuous control spinneret curve, ensure that the continual space curved surface contact of spinneret total length in bending, cooling, type-approval process, and, the coordinate dimension of each point and the uniformity of spinneret calibration curve on spinneret, and effectively improve spinneret bend precision, make the actual spinneret curve transition produced smooth-going smooth, continual curvature ripple disable.
Above-described is preferred embodiment of the present utility model; should be understood that the ordinary person for the art; not departing under principle prerequisite described in the utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a bending machine, is characterized in that, comprising:
Main shaft and the mold be fixedly linked with described main shaft side, and the drives structure be fixedly linked with described spindle nose;
The multiple mobile mold that described mold comprises a fixing mold and is connected with described fixing mold contraposition, described fixing mold is provided with one and fixes mold contact surface continuously, the correspondence position of described multiple mobile mold is equipped with a continuous moving mold contact surface, and after described fixing mold and described multiple mobile mold be fixedly linked, described fixing mold contact surface and mobile mold contact surface can seamlessly fasten, and form spinneret passage.
2. bending machine as claimed in claim 1, be is characterized in that, be fixedly linked between described drives structure and main shaft by end face type flange bolt.
3. bending machine as claimed in claim 1, it is characterized in that, described drives structure is rotaring wheel structure.
4. bending machine as claimed in claim 1, is characterized in that, the fixing mold in described mold is fixedly linked by welding and described main shaft side.
5. bending machine as claimed in claim 4, it is characterized in that, the fixing mold in described mold is welded on described main shaft side by bending steel plate.
6. bending machine as claimed in claim 1, it is characterized in that, first side of described fixing mold and the first side of described mobile mold are rotatably connected by hinge structure, and the second side of described fixing mold and the second side of described mobile mold are fixedly linked by locking mechanism.
7. bending machine as claimed in claim 6, it is characterized in that, the second side of described fixing mold and the second side of described mobile mold are equipped with tapped through hole, and described locking mechanism comprises screw bolt and nut, described bolt is arranged in described tapped through hole, and is undertaken fastening by described nut.
8. bending machine as claimed in claim 1, it is characterized in that, described fixing mold comprises the first mother metal portion and first and increases material portion, and described first mother metal portion is provided with the first preliminary curved surface, and described first increases material portion forms described fixing mold contact surface on the described first preliminary curved surface basis;
Described mobile mold comprises the second mother metal portion and second and increases material portion, and described second mother metal portion is provided with the second preliminary curved surface, and described second increases material portion forms described mobile mold contact surface on the described second preliminary curved surface basis.
9. bending machine as claimed in claim 8, it is characterized in that, the material in described first mother metal portion and the second mother metal portion is mild steel.
10. bending machine as claimed in claim 1, it is characterized in that, the material of described main shaft is heat-resisting alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498192.3U CN204770045U (en) | 2015-07-10 | 2015-07-10 | Tube -bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498192.3U CN204770045U (en) | 2015-07-10 | 2015-07-10 | Tube -bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204770045U true CN204770045U (en) | 2015-11-18 |
Family
ID=54510171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520498192.3U Withdrawn - After Issue CN204770045U (en) | 2015-07-10 | 2015-07-10 | Tube -bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204770045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945086A (en) * | 2016-04-14 | 2016-09-21 | 中国钢研科技集团有限公司 | Manufacturing method of large-diameter special section pipe |
| CN106311831A (en) * | 2015-07-10 | 2017-01-11 | 北京京诚瑞信长材工程技术有限公司 | Pipe bender |
| CN106475445A (en) * | 2016-11-08 | 2017-03-08 | 南京航空航天大学 | A kind of metal pipe material 3D free bend manufacturing process and five axle free bend equipment |
-
2015
- 2015-07-10 CN CN201520498192.3U patent/CN204770045U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311831A (en) * | 2015-07-10 | 2017-01-11 | 北京京诚瑞信长材工程技术有限公司 | Pipe bender |
| CN106311831B (en) * | 2015-07-10 | 2017-12-22 | 北京京诚瑞信长材工程技术有限公司 | A kind of bending machine |
| CN105945086A (en) * | 2016-04-14 | 2016-09-21 | 中国钢研科技集团有限公司 | Manufacturing method of large-diameter special section pipe |
| CN106475445A (en) * | 2016-11-08 | 2017-03-08 | 南京航空航天大学 | A kind of metal pipe material 3D free bend manufacturing process and five axle free bend equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20171222 |