CN207188548U - A kind of numerical control hydraulic bending bending machine - Google Patents
A kind of numerical control hydraulic bending bending machine Download PDFInfo
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- CN207188548U CN207188548U CN201721058524.1U CN201721058524U CN207188548U CN 207188548 U CN207188548 U CN 207188548U CN 201721058524 U CN201721058524 U CN 201721058524U CN 207188548 U CN207188548 U CN 207188548U
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- curved mould
- cylinder body
- block
- plunger shaft
- bending
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Abstract
The utility model discloses a kind of numerical control hydraulic bending bending machine, is related to a kind of structure of bending machine.It includes curved mould and curved mould drive mechanism, curved mould drive mechanism includes the guide groove in the middle part of guidance panel, with inside the guide groove and the cylinder body that can be slided in guide groove, wherein one end end connection of curved mould and cylinder body, cylinder body is provided with plunger shaft in the side close to curved mould, piston rod is provided with plunger shaft, the block for being fixedly connected with the vacant end end of piston rod and blocking the accent of plunger shaft is provided with the accent of plunger shaft, two arranged for interval are provided with piston rod and run through the oil duct of block；Upper cover of piston rod has sealing block, and sealing gasket is provided between sealing block and plunger shaft, and cylinder body is provided with sensor standing groove in the side away from curved mould, displacement transducer is placed with sensor standing groove；Block and guidance panel are integral type structure.The utility model frictional dissipation is small, and bend pipe scope is big, not only increases operating efficiency, also reduces floor space.
Description
Technical field
A kind of structure of bending machine is the utility model is related to, specifically a kind of numerical control hydraulic bending bending machine.
Background technology
Angle pipe equipment mainly has two kinds of rotation bender and bending machine at present：
1. revolving bender, in the market numerical control is in the majority, and it is to embrace bend pipe to rotate and obtain on curved mould, directly detects curved mould rotation
Gyration, an angular transducer can be achieved with angle monitoring.But its fixture, annex are complicated, and equipment volume is huge, cost is high,
And bend pipe strength is small, more mold exchange trouble, and the curved mould of bending machine of this form can not use reversible deformation control bend pipe section matter
Amount, otherwise pipe bank enters curved mould, bad to move back mould.
2. bending machine, in the market are only manual.Though small volume, head can not rotate freely, and pipe fitting is with bending during bending
Change sweep, long tube process when shared processing space it is big.The curved section circularity of institute is of poor quality in addition, and profile angle is by artificial control
System, is not suitable for producing in batches.
For above-mentioned technical problem, present inventor have submitted an entitled " number on June 20th, 2014
Draining is beared down on one bend pipe bending machine and its bending method " application for a patent for invention (application number：201410279300.8), the bending bend pipe
Machine bottom is power car, and top is guidance panel, is connected between power car and guidance panel by swivel joint, swivel joint is by two
Bar oil circuit and four road conducting slip ring compositions, it can make any rotation of 360 ° of operating table surface, have S type sliding blocks, sliding block on guidance panel
Curved mould is installed in upper end, lower end installation oil cylinder, S types sliding block is slided on the guide groove of rectangle by oil cylinder, S types sliding block is sliding
During drive curved mould to slide.
Although above-mentioned existing bending bending machine effectively saves processing space, present inventor is passing through
After long-term use, it is found that it there is problems：
1. existing oil cylinder drives S types sliding block to produce stronger active force to sliding block during sliding, curved mould is in cunning
Stronger reaction force can be produced in dynamic process to S types sliding block, so that existing bending bending machine makes by long-term
With rear, above-mentioned active force can make S types sliding block coordinate sliding position to produce moment of torsion with oil cylinder, and above-mentioned reaction force can make S type sliding blocks
Upper to coordinate the position slided to produce moment of torsion with curved mould, the two moments of torsion cause S types sliding block to produce larger frictional force when sliding,
Bend pipe power is caused to reduce, and the position intensity ratio for making S types sliding block coordinate curved mould and oil cylinder to slide reduces, and causes S type bending of slide block
Deformation.
2. the upper end of slide block of existing bending bending machine installs curved mould, lower end installation oil cylinder, the superposition of device causes equipment
Volume increase.
3. because all material first produces elastic deformation in BENDING PROCESS, become as the increase of deflection produces plasticity
Shape, so bend pipe has certain rebound amount after brake forming.Material shape, material and condition of heat treatment are different, rebound amount
Also different, existing bending bending machine is unable to the bounce-back of effective compensation bend pipe, can only estimate or be cut by similar linear slope
Away from estimation, overshoot compensation bounce-back, its limited precision, and any profile angle is both needed to test of many times and obtained a result.
Utility model content
The purpose of this utility model is to overcome the weak point of background technology, and it is curved to provide a kind of numerical control hydraulic bending
Pipe machine.
To achieve these goals, the technical solution of the utility model is：A kind of numerical control hydraulic bending bending machine, including peace
Loaded on the curved mould above guidance panel, and it is installed in the middle part of guidance panel and can drives what curved mould moved back and forth on guidance panel
Curved mould drive mechanism, it is characterised in that：The curved mould drive mechanism includes the guide groove in the middle part of the guidance panel, and positioned at leading
To groove inside and the cylinder body that can be slided in guide groove, wherein one end end connection of the curved mould and cylinder body, the cylinder body exists
Plunger shaft is provided with close to the side of curved mould, piston rod is provided with plunger shaft, is provided with and the piston rod at the accent of plunger shaft
The block that vacant end end is fixedly connected and blocks the accent of plunger shaft, the piston rod are interior provided with two arranged for interval and equal
Through the oil duct of the block.
In the above-mentioned technical solutions, the upper cover of piston rod has the sealing block in plunger shaft, and sealing block is located at piston
Close to the side of block on bar, sealing gasket is provided between sealing block and the side wall of plunger shaft.
In the above-mentioned technical solutions, the cylinder body is provided with sensor standing groove in the side away from curved mould, and sensor is placed
Displacement transducer is placed with groove.
In the above-mentioned technical solutions, the block and guidance panel are integral type structure.
Compared with prior art, the utility model has the beneficial effect that：
1. the structure of oil cylinder and sliding block is optimized the utility model, oil cylinder and sliding block are arranged to integral type knot
Structure, is referred to as cylinder body, the only reaction force by curved mould to cylinder body when cylinder body drives the curved mould to slide, when significantly reducing bend pipe
The frictional force that cylinder body is subject to so that bend pipe efficiency increase.
2. the hollow cylinder body of the utility model bending strength increase under the material of phase homogenous quantities.
Coordinate 3. the utility model cylinder body and guide groove are cambered surface, steering capability is good, because steering capability is good, cylinder body with lead
Being oriented to length to groove can reduce, and oil cylinder and sliding block are arranged to integral structure by the utility model, are referred to as cylinder body, equipment
Volume significantly reduce.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model numerical control hydraulic bending bending machine.
Fig. 2 is the front view of numerical control hydraulic bending bending machine.
Fig. 3 is the left view of numerical control hydraulic bending bending machine.
Fig. 4 is the right view of numerical control hydraulic bending bending machine.
Fig. 5 is the top view of numerical control hydraulic bending bending machine.
Fig. 6 is the upward view of numerical control hydraulic bending bending machine.
Fig. 7 is cylinder body, curved mould, the detail view of block.
Fig. 8 is the stereogram of cylinder body.
Fig. 9 is the stereogram of guidance panel.
Figure 10 is the detail view of fixed mount.
Figure 11 is the distance map of fixed mount and bend pipe.
Figure 12 is the structural representation of guidance panel and cylinder body.
Figure 13 is the distance map of curved mould and pin.
1- power cars in figure, 1.1- power compartments, 1.2- wheels, 1.3- power compartments, 2- guidance panels, 21- guide grooves,
22- cylinder bodies, 23- plunger shafts, 24- piston rods, 25- blocks, 26- oil ducts, 27- sealing blocks, 28- sealing gaskets, 29- sensors are placed
The curved mould drive mechanism of groove, 3- hydraulic power stations, 4- lead-in line joints, 5- Socket for computor, 6- power switches, 7-, the curved moulds of 8-, 8.1- are curved
Crank slot, 9- pin-and-holes, 10- fixed mounts, 10.1- grooves, 11- displacement transducers, 12- lifting eyes, 13- carry handrail, 14- rotations connect
Head.
Embodiment
Describe performance of the present utility model in detail below in conjunction with the accompanying drawings, but they are not formed to of the present utility model
Limit, it is only for example.The advantages of making the utility model by explanation simultaneously, is more clear and is readily appreciated that.
Understood refering to accompanying drawing：A kind of numerical control hydraulic bending bending machine, including the curved mould 8 of the top of guidance panel 2 is installed on, and
It is installed on the middle part of guidance panel 2 and the curved mould drive mechanism 7 that curved mould 8 can be driven to be moved back and forth on guidance panel 2, its feature exists
In：The curved mould drive mechanism 7 includes the guide groove 21 positioned at the middle part of guidance panel 2, and positioned at the inside of guide groove 21 and can be
The cylinder body 22 slided in guide groove 21, the curved mould 8 are connected with wherein one end end of cylinder body 22, and the cylinder body 22 is close to curved
The side of mould 8 is provided with plunger shaft 23, and piston rod 24 is provided with plunger shaft 23, is provided with and the piston rod at the accent of plunger shaft 23
The block 25 that 24 vacant end end is fixedly connected and blocks the accent of plunger shaft 23, the piston rod 24 is interior to be provided between two
Run through every arrangement and the oil duct 26 of the block 25.
Preferably, the sealing block 27 being cased with the piston rod 24 in plunger shaft 23, sealing block 27 are located at piston rod
Close to the side of block 25 on 24, sealing gasket 28 is provided between sealing block 27 and the side wall of plunger shaft 23.
Preferably, the cylinder body 22 is provided with sensor standing groove 29 in the side away from curved mould 8, in sensor standing groove 29
It is placed with displacement transducer 11.
Preferably, the block 25 and guidance panel 2 are integral type structure.
The application is the entitled numerical control hydraulic submitted for present inventor on June 20th, 2014
Bending bending machine and its bending method (application number：201410279300.8) improvement, main improvement are to oil cylinder and slide plate
Structure be optimized, and oil cylinder and slide plate are arranged to integral structure (being referred to as cylinder body 22).
During real work, numerical control hydraulic bending bending machine also includes the power car 1 moved freely and is arranged on power roof
The guidance panel 2 in face, is provided with swivel joint 14 between the power car 1 and guidance panel 2, power car 1 includes power compartment
1.1 and the wheel 1.2 that is arranged on four corners of power compartment bottom, power compartment 1.1 be internally provided with hydraulic power station
3, be disposed with pressure sensor (not marked in figure) in the hydraulic power station 3, hydraulic power station 3 successively with swivel joint 17,
Oil duct 26 seals and conducts, and the upper angle at the both ends of power car 1 is respectively symmetrically provided with lifting eye 12, is provided between each pair lifting eye 12
One carrying handrail 13, the both ends of hydraulic power station 3 are fixed on the inside at the both ends of power compartment 1.1, power compartment 1.1 1
Side opens up dynamic railway carriage or compartment door 1.3, and one end bottom of power compartment 1.1 is respectively arranged with inlet wire on the outer wall of power railway carriage or compartment door 1.3
Joint 4 and Socket for computor 5；The top of lead-in line joint 4 and Socket for computor 5 is provided with power switch 6.
Curved mould 8 is provided with the plate face of the guidance panel 2, is further opened with the plate face of guidance panel 2 multipair for setting
The pin-and-hole 9 of fixed mount 10 is put, the corresponding side level of fixed mount 10 of curved mould 8 offers the curved slot 8.1 that section is in half elliptic；Pin
Hole 9 is symmetrical with cylinder body 22, and the distance between center line of each pair pin-and-hole 9 is L, and the corresponding curved mould side of fixed mount 10 opens up use
In the opening for placing bend pipe, opening is in " V " type, and its both sides inwall being open offers the groove 10.1 for placing permanent magnet,
The distance of the center line of fixed mount 10 and the center line of bend pipe is R, and the corresponding side level of fixed mount 10 of curved mould 8 offers section and is in
The curved slot 8.1 of half elliptic.
The formula of the displacement on guidance panel 2 of cylinder body 22 is as follows：
Wherein,
L：The distance between each pair pin aperture centerline on guidance panel；
R：The distance of the center line of fixed mount and the center line of bend pipe；
R1：The bending radius of bend pipe center line；
α：The angle of elbow curvature；
S：The moving displacement amount of executing agency's moving displacement amount, i.e. cylinder body.
The deduction functional expression of the formula of executing agency's moving displacement amount is as follows：
5) S=h+h2-h1
Wherein L, r, R1 are constant, and α is variable
L1:Triangle base length (shaping bent angle α and caliber D function)；
L：The distance between each pair pin aperture centerline on guidance panel, stepping definite value (five grades)；
h1:Vertex angle to tangent arc distance (α, D, R1 function)；
h2:The height (function of bent angle α and caliber) of triangle；
h：The action (functions of α/2) of Tube Bending Deformation palintrope mould rotational positioning；
r：The section radius (input variable) of pipe；
R：The distance of the center line of fixed mount and the center line of bend pipe；
R1：The bending radius of bend pipe center line；
α：The angle (input variable) of elbow curvature；
All material first produces elastic deformation in BENDING PROCESS, and plastic deformation is produced with the increase of deflection.Bending
There is certain rebound amount after shaping, and rebound amount has difference according to material shape, material and condition of heat treatment.It is and existing
Technology is all unable to the bounce-back of effective compensation bend pipe, can only estimate or be estimated by similar linear slope intercept, overshoot compensation is anti-
Bullet, its limited precision, and any profile angle are both needed to test of many times and obtained a result.
The utility model provides a kind of numerical control hydraulic bending bending machine and is used for the method that the automatic bounce-back of pipe fitting compensates.No
The pipe fitting of same specification different batches is before bend pipe first from the curved program of examination.According to required precision, system can find out automatic note automatically
The compensation rate of requirement is issued to, preferable stroke S, as this batch pipe data, can reach desired angle plus compensation rate.
The utility model starts bending machine according to below equation：
Wherein,
L：The distance between each pair pin aperture centerline on guidance panel；
R：The distance of the center line of fixed mount and the center line of bend pipe；
R1：The bending radius of bend pipe center line；
α：The angle of elbow curvature；
S：The moving displacement amount of curved mould moving displacement amount, i.e. cylinder body, without rebound amount；
The method of bounce-back compensation of the present utility model comprises the steps of：
Step 1：The curved mould 8 according to corresponding to being chosen the caliber of bend pipe, start to try curved；
Step 2：When cylinder body 22 is moved to theoretical displacement S, cylinder body 22 halts；
Step 3：Cylinder body 22 is retreated, the bounce of bend pipe is discharged completely；
Step 4：Cylinder body 22 advances again, when curved mould 8 contacts again with bend pipe, the pressure sensing in hydraulic power station 3
Device catches jump signal, obtains the curved mould displacement S of curved mould 81, now the bounce-back compensation rate of theoretical bend pipe is Δ S1=S-S1；
Step 5：Cylinder body 22 drives bend pipe to move on, and the cylinder body displacement for making the cylinder body 22 advance is equal to bend pipe
Bounce-back compensation rate Δ S1；
Step 6：Repeat step three is gradually reduced the cylinder body displacement in step 5 to step 5, until step 4
In curved mould displacement S1Error between theoretical displacement S is recorded in the range of specification error and meets specification error
The curved mould displacement of scope.
Cylinder body 22 coordinates with the cambered surface of guidance panel 2 in specific operation process, and steering capability is good；The active force of cylinder body 22 is to cunning
It is dynamic to coordinate without torsional forces, the increase of bend pipe efficiency；The bending strength increase under the material of phase homogenous quantities of the cylinder body 22 of part hollow；By
Good in steering capability, cylinder body 22 and guidance panel 2 are oriented to length and can reduced, i.e., same case panel length can be done small；Friction damage
The reduction same case of consumption can increase bend pipe scope.
Other unspecified parts are prior art.
Claims (4)
1. a kind of numerical control hydraulic bending bending machine, including the curved mould (8) above guidance panel (2) is installed on, and it is installed on operation
In the middle part of panel (2) and curved mould drive mechanism (7) that curved mould (8) can be driven to be moved back and forth on guidance panel (2), its feature exist
In：The curved mould drive mechanism (7) includes the guide groove (21) in the middle part of guidance panel (2), and in guide groove (21)
Portion can be simultaneously connected, institute in the interior cylinder body (22) slided of guide groove (21), the curved mould (8) with wherein one end end of cylinder body (22)
State cylinder body (22) and be provided with plunger shaft (23) close to the side of curved mould (8), piston rod (24), plunger shaft are provided with plunger shaft (23)
(23) it is provided with accent and is fixedly connected with the vacant end end of the piston rod (24) and blocks the accent of plunger shaft (23)
Block (25), provided with two arranged for interval and through the oil duct (26) of the block (25) in the piston rod (24).
2. numerical control hydraulic bending bending machine according to claim 1, it is characterised in that：Position is cased with the piston rod (24)
In the sealing block (27) in plunger shaft (23), sealing block (27) is located on piston rod (24) close to the side of block (25), sealing
Sealing gasket (28) is provided between the side wall of block (27) and plunger shaft (23).
3. numerical control hydraulic bending bending machine according to claim 2, it is characterised in that：The cylinder body (22) is away from curved mould
(8) side is provided with sensor standing groove (29), and displacement transducer (11) is placed with sensor standing groove (29).
4. numerical control hydraulic bending bending machine according to claim 3, it is characterised in that：The block (25) and guidance panel
(2) it is integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721058524.1U CN207188548U (en) | 2017-08-18 | 2017-08-18 | A kind of numerical control hydraulic bending bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721058524.1U CN207188548U (en) | 2017-08-18 | 2017-08-18 | A kind of numerical control hydraulic bending bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207188548U true CN207188548U (en) | 2018-04-06 |
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ID=61794579
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721058524.1U Expired - Fee Related CN207188548U (en) | 2017-08-18 | 2017-08-18 | A kind of numerical control hydraulic bending bending machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442619A (en) * | 2017-08-18 | 2017-12-08 | 武汉华液传动制造有限公司 | A kind of numerical control hydraulic bending bending machine and its bounce-back compensation method |
-
2017
- 2017-08-18 CN CN201721058524.1U patent/CN207188548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442619A (en) * | 2017-08-18 | 2017-12-08 | 武汉华液传动制造有限公司 | A kind of numerical control hydraulic bending bending machine and its bounce-back compensation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20200818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |