CN112676403B - Push bending device with shape correcting function and working method thereof - Google Patents
Push bending device with shape correcting function and working method thereof Download PDFInfo
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- CN112676403B CN112676403B CN202011405253.9A CN202011405253A CN112676403B CN 112676403 B CN112676403 B CN 112676403B CN 202011405253 A CN202011405253 A CN 202011405253A CN 112676403 B CN112676403 B CN 112676403B
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Abstract
The invention provides a push bending device with a shape correcting function and a working method thereof, wherein the push bending device comprises an installation platform, a horizontal moving mechanism, an adjustable material supporting mechanism, an adjustable bending roller assembly, a fixed frame and a flexible press roller mechanism, wherein the horizontal moving mechanism and the adjustable material supporting mechanism are both fixed on the installation platform, the fixed frame is fixed on the horizontal moving mechanism, the adjustable bending roller assembly comprises two adjustable bending roller units which are symmetrically and fixedly arranged in the fixed frame in a matched mode in pair, the flexible press roller mechanism is installed on the fixed frame, the adjustable material supporting mechanism bears a section to be bent, the section to be bent is arranged opposite to a bending roller area between the two adjustable bending roller units, the horizontal moving mechanism drives the two adjustable bending roller units to move so as to push the section to be bent, and the flexible press roller mechanism synchronously compresses the upper surface of the section to be bent in the bending forming process. According to the invention, the follow-up flexible compression roller mechanism is arranged on the bending device, so that the bending device has a shape correction function in the bending forming process of the section.
Description
Technical Field
The invention belongs to the field of non-mold bending plastic forming, and particularly relates to a push bending device with a shape correcting function and a working method thereof.
Background
Because the die-free bending forming has little restriction on the section bar, the section bar is often twisted or warped and deformed during the die-free bending process. Compared with cold bending forming, the temperature of a bending forming area of local hot bending forming is high, distortion and buckling deformation are easy to occur, and due to the fact that a certain distance exists between the bending forming area and a bending pushing device, deformation accumulation can occur, and the distortion and the buckling are more obvious in the local hot bending forming process. The rigid shape correcting device can be arranged on the bending pushing device according to the geometric shape of the section bar so as to achieve the purpose of preventing the section bar from being twisted or warped. However, due to the influence of the tolerance of the section bar, the gap between the rigid shape correcting device and the section bar is difficult to determine, and if the gap is too large, the shape correcting device cannot play a role in shape correction; if the clearance is small, the section bar is difficult to pass through a rigid shape correcting device, so that the shape correcting effect cannot be achieved, and even quality problems such as material accumulation wrinkling or surface scratching can occur.
Aiming at the problems existing in the existing pushing and bending device for the dieless bending forming of the section, a section pushing and bending device with a shape correcting function is needed to be designed.
Disclosure of Invention
In view of the above, the present invention is directed to a bending device with a shape correction function and a working method thereof, in which a flexible roller device capable of following is installed on the bending device, so that the bending device has the shape correction function during the bending forming process of a profile.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a push bending device with a shape correcting function comprises a mounting platform, a horizontal moving mechanism, an adjustable material supporting mechanism, an adjustable bending roller assembly, a fixing frame and a flexible press roller mechanism, the horizontal moving mechanism and the adjustable material supporting mechanism are both fixed on the mounting platform, the fixing frame is fixed on the horizontal moving mechanism, the adjustable bending roll assembly comprises two adjustable bending roll units which are matched in pairs, the two adjustable bending roll units are symmetrically and fixedly arranged in the fixed frame, the flexible compression roller mechanism is arranged on the fixed frame, the adjustable material supporting mechanism bears the section to be bent, the section to be bent is arranged over against the bending roll area between the two adjustable bending roll units, the horizontal moving mechanism drives the two adjustable bending roll units installed in the fixed frame to move so as to push the section to be bent to be formed, and the flexible press roll mechanism synchronously compresses the upper surface of the section to be bent in the bending forming process.
Further, the mount includes two-way cylinder fixed plate, fixed plate and fixing base, the fixed plate sets up two, the fixing base sets up two, two fixing base settings are under two-way cylinder fixed plate, two fixed plate settings are between two-way cylinder fixed plate and fixing base, the top of two fixed plates is connected with two-way cylinder fixed plate's both ends respectively, the bottom is connected with a fixing base respectively, two-way cylinder fixed plate, two fixed plates and two fixing bases enclose into frame type structure, two fixing bases pass through the moving mechanism fixing base to be fixed on horizontal migration mechanism, two adjustable bending roller units set up in frame type structure, and every unit corresponds a fixing base fixed connection.
Further, flexible compression roller mechanism includes two-way cylinder and compression roller, two-way cylinder installs on two-way cylinder fixed plate, and two-way cylinder's piston rod passes two-way cylinder fixed plate and is connected with cylinder locating lever fixed plate, cylinder locating lever fixed plate lower part has set firmly the compression roller mount pad, through the compression roller locating pin installation compression roller of level setting on the compression roller mount pad, is equipped with two cylinder locating levers at the bilateral symmetry of cylinder locating lever fixed plate, and two cylinder locating levers pass two-way cylinder fixed plate and arrange.
Further, adjustable bending roll unit is including pushing away the bending roll and adjusting seat, the adjusting seat includes adjusting plate one, adjusting plate two, adjusting plate three, bending roll mount pad, adjusting screw two, adjusting screw three, adjusting screw four, set screw five, set screw six and set screw seven, bending roll mount pad bottom is fixed on corresponding fixing base through set screw four, adjusting plate one end is the open end for blind end one end, is equipped with the linking arm in open end position department symmetry, adjusting plate two is connected through a plurality of set screw six with the up end of the linking arm of adjusting plate one, adjusting plate three side end connection through the linking arm of set screw seven with adjusting plate one, adjusting plate two and adjusting plate three enclose into the space that holds the bending roll mount pad, install adjusting screw two and adjusting screw four on adjusting plate two, the bottom end of the adjusting screw II abuts against the upper end face of the bending roll mounting seat, the vertical position of the adjusting plate I is adjusted through the adjusting screw II and the adjusting screw IV, the adjusting screw III is mounted on the adjusting plate III, the tail end of the adjusting screw III abuts against the side end face of the bending roll mounting seat, the horizontal position of the adjusting plate I is adjusted through the adjusting screw III, and after the position of the adjusting plate I is adjusted, the connecting arm of the adjusting plate I is fixed through the fixing screw V; the push bending roll is installed on the bending roll installation seat through a vertically arranged bending roll positioning pin, and the closed end of the first adjusting plate is used for bearing a section to be bent.
Furthermore, the bending pushing rollers of the two adjustable bending roller units are respectively contacted with the left side surface and the right side surface of the section to be bent, and the pressing rollers of the flexible pressing roller mechanism are contacted with the upper surface of the section to be bent.
Furthermore, the adjustable material supporting mechanism comprises a material supporting plate, a material supporting plate fixing seat, a plurality of adjusting nuts, a first adjusting screw, a second fixing screw and a third fixing screw, wherein the material supporting plate is arranged on the material supporting plate fixing seat, the first adjusting nuts are uniformly arranged on the material supporting plate fixing seat, each adjusting nut is matched with the first adjusting screw, the tops of all the first adjusting screws are abutted to the lower surface of the material supporting plate, the vertical position of the material supporting plate is changed by rotating the extension length of the first adjusting screws on the corresponding adjusting nuts, the material supporting plate and the seasoning plate fixing seat are fixed through the second fixing screws, and the material supporting plate fixing seat and the mounting platform are fixed through the third fixing screws;
furthermore, the horizontal moving mechanism is a screw nut mechanism, the two fixing seats are fixed on a nut of the screw nut mechanism through the moving mechanism fixing seat, a screw of the screw nut mechanism is driven to rotate by a motor, the screw nut mechanism is installed in a supporting frame, and the supporting frame and the motor are both fixed on the installation platform.
Furthermore, a plurality of slotted holes are formed in the joint of the two-way cylinder fixing plate and the two fixing plates, and a plurality of fixing screws penetrate through the slotted holes in the two-way cylinder fixing plate to connect the two-way cylinder fixing plate and the two fixing plates.
A working method of a push bending device with a shape correcting function comprises the following steps:
s1, preparation stage: firstly, adjusting the positions of a material supporting plate and an adjusting plate I to enable the material supporting plate and the adjusting plate I to be flush and level with each other, and enabling the material supporting plate and the adjusting plate I to be on the same plane with a feeding plane of a section to be bent; secondly, adjusting the horizontal space between two bending pushing rollers of two adjustable roller bending units consisting of adjustable roller bending units to ensure that the horizontal space meets the size specification of the section to be bent; finally, adjusting the position of the bidirectional cylinder fixing plate to adjust the transverse position of the compression roller, so that the compression roller is positioned right above a space between the two bending pushing rollers, and adjusting the position of the retainer plate fixing seat according to the bending pushing stroke;
s2, bending stage: firstly, controlling a compression roller to descend by controlling a bidirectional cylinder, controlling the feeding of a profile to be bent, and controlling the bidirectional cylinder to enable the compression roller to compress the profile to be bent by a numerical control program after the profile to be bent enters a platform formed by two adjusting plates I; then, the horizontal moving mechanism is controlled by a numerical control program to drive the fixing frame to move horizontally, so that two bending pushing rollers consisting of the adjustable bending rollers are driven to push the section to be bent, in the bending process of the section to be bent, the compression roller is kept in a compression state and moves together with the adjustable bending rollers along with the fixing frame, and the relative position is kept unchanged;
and S3, after the bending forming is finished, controlling the press roll to lift by controlling the bidirectional air cylinder, and taking out the formed bent piece.
Further, the position of the first retainer plate and the first adjusting plate in S1 is adjusted to make the first retainer plate and the first adjusting plate flush with each other, and the specific adjusting step on the same plane as the feeding plane of the profile to be bent is as follows: adjusting the length of the first adjusting screw exposed out of the adjusting nut to adjust the height and the flatness of the retainer plate, and screwing the second fixing screw after the adjustment is finished; the position of the first adjusting plate is adjusted by adjusting the second adjusting screw and the fourth adjusting screw, and after the adjustment is completed, the fifth fixing screw and the sixth fixing screw are screwed down.
Compared with the prior art, the push bending device with the shape correcting function and the working method thereof have the following advantages:
1) the flexible press roll device capable of following is arranged on the bending pushing device, so that the bending pushing device has a shape correcting function in the bending forming process of the section. The device can ensure the size and the position precision of the action of the compression roller device on the bent section, can adjust the action point of the shape correction force to ensure the shape correction effect, and can eliminate the influence of the size tolerance of the bent section on the shape correction effect.
2) The bending forming of the sectional materials with the same shape and different specifications can be realized by one-time installation, the structure is simple and reliable, the operation is simple and convenient, the production cost is reduced, and the manufacturing period is shortened.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a front view of a bending device with a shape correction function according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a bending device with a shape correction function according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of an adjustable roll bending unit;
FIG. 4 is a cut-away view of the adjustable roll bending unit;
FIG. 5 is a schematic structural diagram of the first adjustment plate
FIG. 6 is a schematic structural diagram of a second adjustment plate;
FIG. 7 is a schematic structural diagram of a third adjustment plate;
fig. 8 is a schematic view of a triangular section to be bent and the corresponding press and bending rolls.
Description of reference numerals:
1-fixing plate, 2-fixing screw I, 3-bidirectional cylinder fixing plate, 4-cylinder positioning rod fixing plate, 5-cylinder positioning rod, 6-bidirectional cylinder, 7-press roll mounting seat, 8-press roll, 9-moving mechanism fixing seat, 10-retainer plate, 11-adjusting bolt, 12-adjusting screw I, 13-retainer plate fixing seat, 14-horizontal moving mechanism, 15-fixing screw II, 16-fixing screw III, 17-adjustable bending roll component, 18-section to be bent, 19-mounting platform, 20-fixing screw V, 21-adjusting screw III, 22-fixing screw IV, 23-adjusting screw II, 24-bending roll positioning pin, 25-self-lubricating bearing, 26-adjusting plate I, 27-bending roll pushing, 28-fixing screw six, 29-adjusting screw four, 30-adjusting plate two, 31-adjusting plate three, 32-fixing screw seven, 33-bending roll mounting seat and 34-fixing seat.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In addition, the bidirectional cylinder mentioned in the embodiment of the present invention is an SCJ 40X200-100 bidirectional cylinder, and the structure and the operation principle thereof belong to the well-known technology, and are not described herein again.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-7, a bending device with a shape correction function comprises an installation platform, a horizontal moving mechanism, an adjustable material supporting mechanism, an adjustable bending roller assembly 17, a fixed frame and a flexible press roller mechanism, wherein the horizontal moving mechanism and the adjustable material supporting mechanism are both fixed on the installation platform, the fixed frame is fixed on the horizontal moving mechanism, the adjustable bending roller assembly 17 comprises two adjustable bending roller units which are matched in pairs, the two adjustable bending roller units are symmetrically and fixedly arranged in the fixed frame, the flexible press roller mechanism is arranged on the fixed frame, the adjustable material supporting mechanism bears a to-be-bent section 18, the to-be-bent section 18 is arranged just opposite to a bending roller area between the two adjustable bending roller units, and the horizontal moving mechanism drives the two adjustable bending roller units arranged in the fixed frame to move so as to push the to-be-bent section to be bent, and the flexible press roll mechanism synchronously presses the upper surface of the section bar 18 to be bent in the bending forming process.
The mount includes two-way cylinder fixed plate 3, fixed plate 1 and fixing base 34, fixed plate 3 sets up two, fixing base 34 sets up two, two fixing base 34 set up under two-way cylinder fixed plate 3, two fixed plate 1 sets up between two-way cylinder fixed plate 3 and fixing base 34, the top of two fixed plates 1 is connected with two-way cylinder fixed plate 2's both ends respectively, the bottom is connected with a fixing base 34 respectively, two-way cylinder fixed plate 3, two fixed plates 1 and two fixing base 34 enclose into frame type structure, two fixing base 34 are fixed on horizontal migration mechanism through moving mechanism fixing base 9, two adjustable bending roll units set up in frame type structure, and every unit corresponds a fixing base fixed connection.
Flexible compression roller mechanism includes two-way cylinder 6 and compression roller 8, two-way cylinder 6 is installed on two-way cylinder fixed plate 3, and two-way cylinder 6's piston rod passes two-way cylinder fixed plate 3 and is connected with cylinder locating lever fixed plate 4, 4 lower parts of cylinder locating lever fixed plate have set firmly compression roller mount pad 7, through the compression roller locating pin installation compression roller 8 of level setting on compression roller mount pad 7, be equipped with two cylinder locating levers 5 at the bilateral symmetry of cylinder locating lever fixed plate 4, and two cylinder locating levers 5 pass two-way cylinder fixed plate 3 and arrange.
The adjustable bending roll unit comprises a bending roll 27 and an adjusting seat, the adjusting seat comprises an adjusting plate 26, an adjusting plate two 30, an adjusting plate three 31, a bending roll mounting seat 34, an adjusting screw two 23, an adjusting screw three 21, an adjusting screw four 29, a fixing screw four 22, a fixing screw five 20, a fixing screw six 28 and a fixing screw seven 32, the bottom of the bending roll mounting seat 34 is fixed on a corresponding fixing seat through the fixing screw four 22, one 26 end of the adjusting plate is an opening end which is a closed end, connecting arms are symmetrically arranged at the position of the opening end, the two 30 adjusting plates and the upper end face of the connecting arm of the one 26 adjusting plate are connected through the six 28 fixing screws, the three 31 adjusting plates are connected with the side end face of the connecting arm of the one 26 adjusting plate through the seven 32 fixing screws, the one 26 adjusting plate two 30 and the three 31 adjusting plate enclose a space for accommodating the bending roll mounting seat 33, a second adjusting screw 23 and a fourth adjusting screw 29 are mounted on the second adjusting plate 30, the bottom end of the second adjusting screw 23 abuts against the upper end face of the bending roll mounting seat 34, the vertical position of the first adjusting plate 26 is adjusted through the second adjusting screw 23 and the fourth adjusting screw 29, a third adjusting screw 21 is mounted on the third adjusting plate 31, the tail end of the third adjusting screw 21 abuts against the side end face of the bending roll mounting seat 33, the horizontal position of the first adjusting plate 26 is adjusted through the third adjusting screw 21, and after the position of the first adjusting plate 26 is adjusted, the connecting arm of the first adjusting plate 26 is fixed through a fifth fixing screw 20; the bending pushing roller 27 is installed on a bending roller installation seat 33 through a vertically arranged bending roller positioning pin 24, and the closed ends of the two first adjusting plates 26 are used for receiving the section bar 18 to be bent.
The bending rollers of the two adjustable bending roller units are respectively contacted with the left side surface and the right side surface of the section material 18 to be bent, and the press roller 8 of the flexible press roller mechanism is contacted with the upper surface of the section material 18 to be bent.
The adjustable material supporting mechanism comprises a material supporting plate 10, a material supporting plate fixing seat 13, adjusting nuts 11, adjusting screws I12, fixing screws II 15 and fixing screws III 16, wherein the material supporting plate 10 is arranged on the material supporting plate fixing seat 13, a plurality of adjusting nuts 11 are uniformly arranged on the material supporting plate fixing seat 13, each adjusting nut 11 is matched with one adjusting screw I12, the tops of all the adjusting screws I12 are abutted to the lower surface of the material supporting plate 10, the vertical position of the material supporting plate 10 is changed by rotating the extending length of the adjusting screws I12 on the corresponding adjusting nuts 11, the material supporting plate 10 and the seasoning plate fixing seat 13 are fixed through a plurality of fixing screws II 15, and the material supporting plate fixing seat 13 and the mounting platform 19 are fixed through a plurality of fixing screws III 16.
The horizontal moving mechanism is a screw nut mechanism, the two fixing seats 34 are fixed on a nut of the screw nut mechanism through the moving mechanism fixing seat 9, a screw of the screw nut mechanism is driven to rotate by a motor, the screw nut mechanism is installed in a supporting frame, the supporting frame and the motor are both fixed on the installation platform 19, and a limiting groove matched with a limiting guide rail fixed on the supporting frame is arranged at the bottom of the moving mechanism fixing seat 9.
A plurality of oblong holes are formed in the joint of the two-way cylinder fixing plate 3 and the two fixing plates 1, and a plurality of fixing screws I2 penetrate through the oblong holes in the two-way cylinder fixing plate 3 to be connected with the two-way cylinder fixing plate 3 and the two fixing plates 1.
The horizontal moving mechanism 14 drives an adjustable bending roller assembly 17 arranged on a moving mechanism fixing seat 9 to push a bending section 18 to be bent and formed under the action of a motor; before the section bar 18 to be bent enters the bending roller assembly 17, the two-way cylinder 6 is in a loosening state, after the section bar 18 to be bent enters the bending roller assembly 17, the two-way cylinder 6 is started, and the pressing roller 8 presses the section bar to prevent the section bar from being twisted and warped, because of the use of the two-way cylinder 6, when the tolerance of the section bar 18 to be bent is increased, the pressing roller 8 can move upwards under stress, when the tolerance of the section bar 18 to be bent is reduced, the pressing roller 8 can move downwards, and therefore, no matter how the tolerance of the section bar is, the pressing roller 8 and the section bar are always in a pressing state. The orientation rod 5 is connected to the cylinder fixing plate 3 through a self-lubricating bearing 25, which ensures that the press roller 8 moves up and down smoothly without twisting. The bidirectional cylinder 6 forms a whole with the fixed plate 1 and the fixed seat 34 through the bidirectional cylinder fixed plate 3, so that the relative position of the compression roller 8 and the section bar 18 to be bent is always kept unchanged, and the forming of a bending part is guaranteed.
A working method of a push bending device with a shape correcting function comprises the following steps:
s1, preparation stage: firstly, adjusting the positions of the material supporting plate 10 and the first adjusting plate 26 to enable the material supporting plate 10 and the first adjusting plate 26 to be flush with each other and to be on the same plane with the feeding plane of the section to be bent, and the specific adjusting steps are as follows: adjusting the length of the first adjusting screw 12 exposed out of the adjusting nut 11 to adjust the height and the flatness of the retainer plate 10, and screwing the second fixing screw 15 after the adjustment is finished; the first adjusting plate 26, the second adjusting plate 30 and the third adjusting plate 31 are connected into a whole through screws, and the bottom end of the second adjusting screw 23 is abutted against the upper end face of the bending roll mounting seat 33, so that when the second adjusting screw 23 is rotated, the second adjusting plate 30 moves upwards, the second adjusting plate 30 drives the first adjusting plate 26 and the third adjusting plate 31 to move upwards integrally, the first adjusting plate 26 is lifted, and the lifting distance of the first adjusting plate 26 is accurately controlled by rotating the second adjusting screw 23; the second adjusting plate 30 and the first adjusting plate 26 are loosely connected through a sixth fixing screw 28, the first adjusting plate 26 and the third adjusting plate 31 can move downwards, the bottom end of the fourth adjusting screw 29 abuts against the upper end face of the first adjusting plate 26 through rotation of the fourth adjusting screw 29, positioning after the first adjusting plate 26 moves downwards to a required distance is achieved, after adjustment is completed, the sixth fixing screw 28 and the fifth fixing screw 20 are screwed, and accurate control of the descending distance of the first adjusting plate 26 is achieved through rotation of the fourth adjusting screw 29,
secondly, adjust the horizontal space between two bending rollers 27 of two adjustable bending roller units that adjustable bending roller constitutes, make it satisfy the specification of a dimension of treating curved section bar, specifically do: coarse adjustment is realized through the position of the fixed seat 34 on the fixed seat 9 of the moving mechanism; by rotating the third adjusting screw 21, since the end of the third adjusting screw 21 is initially abutted against the side end face of the bending roll mounting seat 33, the third adjusting plate 31 is moved rightwards (the direction shown in fig. 3 or fig. 4), the third adjusting plate 31 drives the first adjusting plate 26 to move rightwards, fine adjustment of movement of the third adjusting plate 31 is realized, and adjustment of a space between the two bending rolls 27 and a bending roll space formed by the two first adjusting plates 26 is realized;
finally, the transverse position of the compression roller 8 is adjusted by adjusting the position of the bidirectional cylinder fixing plate 3, so that the compression roller 8 is positioned right above the space between the two bending pushing rollers 27, the position of the retainer plate fixing seat 13 is adjusted according to the bending pushing stroke, and the compression roller is fixed by a screw after being adjusted;
s2, bending stage: firstly, controlling the compression roller 8 to descend by controlling the bidirectional cylinder 6, controlling the section to be bent 18 to feed, and controlling the bidirectional cylinder 6 to enable the compression roller 8 to press the section to be bent 18 by a numerical control program after the section to be bent 18 enters a platform formed by two adjusting plates I26; then, the horizontal moving mechanism 14 is controlled by a numerical control program to drive the fixing frame to move horizontally, so that two bending pushing rollers of the adjustable bending roller assembly 17 are driven to push the section bar 18 to be bent, in the bending forming process of the section bar 18 to be bent, the compression roller 8 is kept in a compression state and moves together with the adjustable bending roller assembly 17 along with the fixing frame, and the relative position is kept unchanged;
and S3, after the bending forming is finished, controlling the two-way cylinder 6 to control the press roller 8 to lift, and taking out the formed bent piece.
In the local hot bending forming process of the high-strength boron steel pipe with the specification of 30X40X1.5mm, the bending pushing device eliminates the distortion phenomenon, so that the flatness of the boron steel pipe when the bending radius is 173mm and the arc length is 350 is reduced to be less than 0.5mm (using the shape correcting function) from 5.3mm (not using the shape correcting function), and a good shape correcting effect is obtained.
If the size of the profile is changed and the adjusting method is not changed, if the shape of the profile is changed, the shapes of the press rolls and the bending rolls need to be correspondingly corrected according to the shape and the stress condition of the profile, and if the profile is changed from the rectangular profile in fig. 1 and 2 to the triangular profile, the shapes of the corresponding press rolls and the bending rolls are shown in fig. 8.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a take curved device of pushing away of school shape function which characterized in that: comprises a mounting platform, a horizontal moving mechanism, an adjustable material supporting mechanism, an adjustable bending roll assembly (17), a fixed frame and a flexible press roll mechanism, the horizontal moving mechanism and the adjustable material supporting mechanism are both fixed on the mounting platform, the fixing frame is fixed on the horizontal moving mechanism, the adjustable bending roll assembly (17) comprises two adjustable bending roll units which are matched in pairs, the two adjustable bending roll units are symmetrically and fixedly arranged in the fixed frame, the flexible compression roller mechanism is arranged on the fixed frame, the adjustable material supporting mechanism bears a section bar (18) to be bent, the section bar (18) to be bent is arranged opposite to the bending roll area between the two adjustable bending roll units, the horizontal moving mechanism drives the two adjustable bending roll units arranged in the fixed frame to move so as to push the section bar to be bent and formed, in the bending forming process, the flexible compression roller mechanism synchronously compresses the upper surface of the section (18) to be bent;
the fixing frame comprises a bidirectional cylinder fixing plate (3), a fixing plate (1) and a fixing seat (34), the two fixing plates (1) are arranged, the two fixing seats (34) are arranged under the two-way cylinder fixing plate (3), the two fixing plates (1) are arranged between the two-way cylinder fixing plate (3) and the fixing seats (34), the top ends of the two fixing plates (1) are respectively connected with the two ends of the two-way cylinder fixing plate (3), the bottom ends of the two fixing plates are respectively connected with one fixing seat (34), the two-way cylinder fixing plate (3), the two fixing plates (1) and the two fixing seats (34) enclose a frame-shaped structure, the two fixing seats (34) are fixed on a horizontal moving mechanism through a moving mechanism fixing seat (9), the two adjustable bending roll units are arranged in the frame-shaped structure, and each unit corresponds to one fixing seat and is fixedly connected;
the flexible compression roller mechanism comprises a bidirectional cylinder (6) and a compression roller (8), the bidirectional cylinder (6) is installed on a bidirectional cylinder fixing plate (3), a piston rod of the bidirectional cylinder (6) penetrates through the bidirectional cylinder fixing plate (3) to be connected with a cylinder positioning rod fixing plate (4), a compression roller installation seat (7) is fixedly arranged at the lower part of the cylinder positioning rod fixing plate (4), the compression roller (8) is installed on the compression roller installation seat (7) through a compression roller positioning pin which is horizontally arranged, two cylinder positioning rods (5) are symmetrically arranged on two sides of the cylinder positioning rod fixing plate (4), and the two cylinder positioning rods (5) penetrate through the bidirectional cylinder fixing plate (3) to be arranged;
the adjustable bending roll unit comprises a bending roll (27) and an adjusting seat, the adjusting seat comprises a first adjusting plate (26), a second adjusting plate (30), a third adjusting plate (31), a bending roll mounting seat (33), a second adjusting screw (23), a third adjusting screw (21), a fourth adjusting screw (29), a fourth fixing screw (22), a fifth fixing screw (20), a sixth fixing screw (28) and a seventh fixing screw (32), the bottom of the bending roll mounting seat (33) is fixed on a corresponding fixing seat through the fourth fixing screw (22), one end of the first adjusting plate (26) is a closed end, one end of the first adjusting plate is an open end, connecting arms are symmetrically arranged at the positions of the open ends, the second adjusting plate (30) is connected with the upper end face of the connecting arm of the first adjusting plate (26) through the sixth fixing screws (28), the third adjusting plate (31) is connected with the side end face of the connecting arm of the first adjusting plate (26) through the seventh fixing screw (32), the first adjusting plate (26), the second adjusting plate (30) and the third adjusting plate (31) enclose a space for accommodating a bending roll mounting seat (33), a second adjusting screw (23) and a fourth adjusting screw (29) are mounted on the second adjusting plate (30), the bottom end of the second adjusting screw (23) abuts against the upper end face of the bending roll mounting seat (33), the vertical position of the first adjusting plate (26) is adjusted through the second adjusting screw (23) and the fourth adjusting screw (29), a third adjusting screw (21) is mounted on the third adjusting plate (31), the tail end of the third adjusting screw (21) abuts against the side end face of the bending roll mounting seat (33), the horizontal position of the first adjusting plate (26) is adjusted through the third adjusting screw (21), and after the position of the first adjusting plate (26) is adjusted, the connecting arm of the first adjusting plate (26) is fixed through a fifth fixing screw (20); the bending pushing roll (27) is installed on the bending roll installation seat (33) through a vertically arranged bending roll positioning pin (24), and the closed ends of the two first adjusting plates (26) are used for bearing the section bar (18) to be bent.
2. The push bending device with the shape correcting function according to claim 1, wherein: the bending pushing rollers of the two adjustable bending roller units are respectively contacted with the left side surface and the right side surface of the section bar (18) to be bent, and the pressing roller (8) of the flexible pressing roller mechanism is contacted with the upper surface of the section bar (18) to be bent.
3. The push bending device with the shape correcting function according to claim 1, wherein: the adjustable material supporting mechanism comprises a material supporting plate (10), a material supporting plate fixing seat (13), an adjusting nut (11), an adjusting screw I (12), a fixing screw II (15) and a fixing screw III (16), wherein the material supporting plate (10) is arranged on the material supporting plate fixing seat (13), a plurality of adjusting nuts (11) are uniformly arranged on the retainer plate fixing seat (13), each adjusting nut (11) is matched with an adjusting screw I (12), the tops of all the adjusting screws I (12) are abutted against the lower surface of the retainer plate (10), the vertical position of the retainer plate (10) is changed by rotating the extension length of the adjusting screws I (12) on the corresponding adjusting nuts (11), the retainer plate (10) and the retainer plate fixing seat (13) are fixed by a plurality of fixing screws II (15), the retainer plate fixing seat (13) and the mounting platform (19) are fixed through a plurality of fixing screws III (16).
4. The push bending device with the shape correcting function according to claim 1, wherein: the horizontal moving mechanism is a screw and nut mechanism, two fixing seats (34) are fixed on a nut of the screw and nut mechanism through a moving mechanism fixing seat (9), a screw of the screw and nut mechanism is driven to rotate by a motor, the screw and nut mechanism is installed in a supporting frame, and the supporting frame and the motor are both fixed on an installation platform (19).
5. The push bending device with the shape correcting function according to claim 1, wherein: a plurality of long round holes are formed in the joint of the two-way cylinder fixing plate (3) and the two fixing plates (1), and a plurality of fixing screws I (2) penetrate through the long round holes in the two-way cylinder fixing plate (3) to be connected with the two-way cylinder fixing plate (3) and the two fixing plates (1).
6. The working method of the push bending device with the shape correcting function, according to claim 3, is characterized in that: the method comprises the following steps:
s1, preparation stage: firstly, adjusting the positions of a material supporting plate (10) and a first adjusting plate (26) to enable the material supporting plate (10) and the first adjusting plate (26) to be flush and level with the feeding plane of the section to be bent on the same plane; secondly, adjusting the horizontal space between two bending pushing rollers (27) of two adjustable bending roller units consisting of adjustable bending rollers to ensure that the horizontal space meets the size specification of the section to be bent; finally, the transverse position of the compression roller (8) is adjusted by adjusting the position of the bidirectional cylinder fixing plate (3), so that the compression roller (8) is positioned right above the space between the two bending rollers (27), and the position of the retainer plate fixing seat (13) is adjusted according to the bending stroke;
s2, bending stage: firstly, controlling a compression roller (8) to descend by controlling a bidirectional cylinder (6), controlling a profile to be bent (18) to feed, and controlling the bidirectional cylinder (6) to enable the compression roller (8) to compress the profile to be bent (18) by a numerical control program after the profile to be bent (18) enters a platform formed by two adjusting plates I (26); then, a horizontal moving mechanism (14) is controlled by a numerical control program to drive a fixing frame to move horizontally, so that two bending pushing rollers of an adjustable bending roller assembly (17) are driven to push a section (18) to be bent, in the bending forming process of the section (18) to be bent, a press roller (8) is kept in a pressing state and moves together with the adjustable bending roller assembly (17) along with the fixing frame, and the relative position is kept unchanged;
and S3, after the bending forming is finished, controlling the press roll (8) to lift through controlling the bidirectional air cylinder (6), and taking out the formed bent piece.
7. The working method of the push bending device with the shape correcting function, according to claim 6, is characterized in that: the position of the material supporting plate (10) and the first adjusting plate (26) in the S1 is adjusted to enable the material supporting plate and the first adjusting plate to be flush, and the specific adjusting step on the same plane with the feeding plane of the section to be bent is as follows: adjusting the length of the first adjusting screw (12) exposed out of the adjusting nut (11) to adjust the height and the flatness of the retainer plate (10), and tightening a second fixing screw (15) after the adjustment is finished; the position of the first adjusting plate (26) is adjusted by adjusting the second adjusting screw (23) and the fourth adjusting screw (29), and after the adjustment is finished, the fifth fixing screw (20) and the sixth fixing screw (28) are screwed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011405253.9A CN112676403B (en) | 2020-12-04 | 2020-12-04 | Push bending device with shape correcting function and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011405253.9A CN112676403B (en) | 2020-12-04 | 2020-12-04 | Push bending device with shape correcting function and working method thereof |
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| CN112676403A CN112676403A (en) | 2021-04-20 |
| CN112676403B true CN112676403B (en) | 2021-09-03 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938048B2 (en) * | 1975-09-18 | 1984-09-13 | 第一高周波工業 （株） | Continuous bending method and device for long materials |
| CN2293400Y (en) * | 1996-12-26 | 1998-10-07 | 吴泗沧 | Homopeural driving simple tube-conveyor |
| DE10119030A1 (en) * | 2000-04-18 | 2002-01-03 | Palima W Ludwig & Co | Bending device for bending tubes in two and/or three dimensions has bending rollers in plane perpendicular to tube input axis |
| DE10153144C1 (en) * | 2001-10-27 | 2003-05-28 | Sms Meer Gmbh | Device, for producing a polygonal pipe, comprises a pipe-welding unit, a roller unit, and a camber roller unit located downstream of the roller unit and having convex rollers on opposite-lying pipe sides |
| EP1857195B8 (en) * | 2005-03-03 | 2014-07-30 | Nippon Steel & Sumitomo Metal Corporation | Method for bending metal material and bent product |
| CN102489564A (en) * | 2011-11-24 | 2012-06-13 | 上海第二工业大学 | Device and method for realizing spatial three-dimensional variable curvature bending of pipe |
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