CN215314875U

CN215314875U - Traceless bending device for metal plate

Info

Publication number: CN215314875U
Application number: CN202121285866.3U
Authority: CN
Inventors: 李林; 周月锋; 王华赟
Original assignee: Suzhou Baoge Metal Products Co ltd
Current assignee: Suzhou Baoge Metal Products Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-28
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a traceless bending device for a metal plate, which comprises a portal frame and a lower die unit; the lower end of the front side surface of the portal frame is symmetrically provided with connecting blocks, and the front side surfaces of the connecting blocks are fixedly connected with the rear side surface of the supporting seat; a hydraulic cylinder is arranged at the upper end of the front side surface of the portal frame through a fixed seat, an upper die base is arranged at the telescopic end of the hydraulic cylinder, and an upper die is arranged in an installation groove of the upper die base; a hydraulic station is arranged in the portal frame through a support bar, and an oil inlet of the hydraulic cylinder is communicated with an oil outlet of the hydraulic station; the lower die unit is arranged at the upper end of the supporting seat and matched with the upper die, and comprises a lower die, a bending groove, a lining strip groove and a lining strip; the hydraulic station is characterized by further comprising a control switch, the control switch is arranged on the front side face of the supporting seat, and the input end of the hydraulic station is electrically connected with the output end of the control switch. This practicality can realize that panel does not have the trace and bends and the processing cost is low.

Description

Traceless bending device for metal plate

Technical Field

The utility model relates to the technical field of sheet metal processing, in particular to a traceless bending device for a metal plate.

Background

The finished product processed by the sheet metal process is also called as a sheet metal part, the sheet metal part can be used in many places in life, for example, a chimney, an iron bucket, an oil tank oil can, a ventilating duct, an elbow reducer, a hemispherical dome, a funnel and the like are manufactured by using sheets, and the main processes of the sheet metal include shearing, bending and buckling edges, bending and forming, welding, riveting and the like. The sheet metal part needs to use a bending device when being bent, the sheet metal firstly undergoes elastic deformation and then enters plastic deformation under the pressure of an upper die or a lower die of a bending machine, the sheet metal is freely bent at the beginning stage of the plastic bending, the sheet metal is gradually close to the inner surface of a V-shaped groove of the lower die along with the pressure exerted on the sheet metal by the upper die or the lower die, meanwhile, the curvature radius and the bending force arm are also gradually reduced, the pressing is continued until the stroke is ended, the upper die and the lower die are enabled to be fully contacted closely by three points of the sheet metal, and the bending is finished at the moment.

In the bending forming process, the metal plate can slide relative to the groove shoulder edge of the V-shaped groove, foreign matters in the V-shaped groove cannot be timely cleaned and can be extruded with the metal plate, and then indentation or scratch is easily caused on the surface of the metal plate during bending, so that the surface machining quality is influenced. Therefore, a traceless bending device for a metal plate is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, provides a traceless bending device for a metal plate, can bend the metal plate tracelessly, has low use cost, and can effectively solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a traceless bending device for a metal plate comprises a portal frame and a lower die unit;

the lower end of the front side face of the portal frame is symmetrically provided with connecting blocks, the front side faces of the connecting blocks are fixedly connected with the rear side face of the supporting seat, the upper end of the front side face of the portal frame is provided with a hydraulic cylinder through a fixing seat, the telescopic end of the hydraulic cylinder is provided with an upper die holder, an upper die is arranged in a mounting groove of the upper die holder, a hydraulic station is arranged in the portal frame through a supporting strip, and an oil inlet of the hydraulic cylinder is communicated with an oil outlet of the hydraulic station;

the lower die unit is arranged at the upper end of the supporting seat, and the lower die unit and the upper die are arranged in a matched manner;

the hydraulic station is characterized by further comprising a control switch, the control switch is arranged on the front side face of the supporting seat, and the input end of the hydraulic station is electrically connected with the output end of the control switch.

Further, the lower die unit comprises a lower die, a bending groove, a lining strip groove and lining strips, the lower die is arranged at the upper end of the supporting seat, the bending groove is formed in the upper surface of the lower die, the lining strip groove is symmetrically formed in the upper surface of the lower die, the lining strip groove is communicated with the bending groove, the lining strips are movably inserted into the bending groove, and the metal plate is prevented from being scratched by the die.

Furthermore, the lining strip is a nylon lining strip, so that the metal plate is prevented from being scratched.

Furthermore, the cross section of the lining strip is parallelogram, so that the processing is convenient.

Furthermore, a collecting groove is formed in the middle of the lower die, and the collecting groove is communicated with the lower end of the bending groove, so that foreign matters can be collected conveniently.

Furthermore, all be equipped with in the lower surface mounting hole of gasket and insert the post, evenly distributed's jack is all seted up to the diapire in gasket groove, inserts the post and pegs graft with the jack activity of vertical correspondence respectively, makes things convenient for the installation location of gasket.

Furthermore, the front symmetry of portal frame is equipped with the dovetail groove board, and the trailing flank symmetry of upper die base is equipped with the slider, and the slider provides the sliding support for the upper die base with dovetail groove board sliding connection respectively, improves the quality of bending.

Compared with the prior art, the utility model has the beneficial effects that:

1. the telescopic end of the hydraulic cylinder extends out to drive the upper die base to move downwards, the upper die base drives the upper die and the sliding block to move downwards, the sliding block slides downwards along the dovetail groove plate to provide support and guide for the upper die base, the upper die moves downwards to be in contact with the metal plate, the metal plate is pressed downwards by the upper die, the metal plate and the lining strip slide, the lower surface of the metal plate is attached to the bending groove wall, the metal plate is subjected to plastic deformation to bend the metal plate, then the telescopic end of the hydraulic cylinder contracts and resets, foreign matters falling into the bending groove in the using process can roll into the collecting groove without influencing bending, the relative sliding between the die and the metal plate is avoided by adding the nylon lining strip, the metal plate cannot be scratched by the nylon lining strip, the collecting groove provides a collecting position for the foreign matters, and the phenomenon that the foreign matters in the bending groove press marks on the metal plate are avoided, thereby ensuring that the metal plate can be bent without traces and further improving the appearance quality of the processed product;

2. after the wearing and tearing take place for the gib, can the rebound gib, the gib drives and inserts the post and shifts up, inserts post and jack separation, and then takes off the gib and insert the post, reprocess the gib can, the cross section of gib is parallelogram, and the nonadjacent face of its gib is parallel to each other, and then can be convenient processing come out, then more the gib of renewal with insert the post can to the gib processing is changed all comparatively conveniently, and then has reduced use cost.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention.

In the figure: the device comprises a portal frame 1, a connecting block 2, a supporting seat 3, a fixing seat 4, a hydraulic cylinder 5, an upper die seat 6, an upper die 7, a control switch 8, a lower die unit 9, a lower die 91, a bending groove 92, a lining groove 93, a lining strip 94, a hydraulic station 10, a dovetail groove plate 11, a sliding block 12, a collecting groove 13, a jack 14 and an inserting column 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the traceless bending apparatus for a metal plate provided in this embodiment includes a gantry 1 and a lower die unit 9; the hydraulic support is characterized by further comprising a control switch 8, wherein the control switch 8 is arranged on the front side face of the support base 3, and the input end of the hydraulic station 10 is electrically connected with the output end of the control switch 8.

Wherein: the lower end of the front side face of the portal frame 1 is symmetrically provided with connecting blocks 2, the portal frame 1 provides a supporting and mounting position for an upper mechanism, the front side face of each connecting block 2 is fixedly connected with the rear side face of the supporting seat 3, and the connecting blocks 2 facilitate the connection between the portal frame 1 and the supporting seats 3; the upper end of the front side surface of the portal frame 1 is provided with a hydraulic cylinder 5 through a fixed seat 4, and the fixed seat 4 provides an installation position for the hydraulic cylinder 5; an upper die base 6 is arranged at the telescopic end of the hydraulic cylinder 5, and an upper die 7 is arranged in an installation groove of the upper die base 6; a hydraulic station 10 is arranged in the portal frame 1 through a support bar, and an oil inlet of the hydraulic cylinder 5 is communicated with an oil outlet of the hydraulic station 10; the front surface of the portal frame 1 is symmetrically provided with dovetail groove plates 11, the rear side surface of the upper die base 6 is symmetrically provided with slide blocks 12, and the slide blocks 12 are respectively connected with the dovetail groove plates 11 in a sliding manner.

Wherein: the lower die unit 9 is arranged at the upper end of the supporting seat 3 and is matched with the upper die 7; the lower die unit 9 comprises a lower die 91, a bending groove 92, a lining strip groove 93 and a lining strip 94; the lower die 91 is arranged at the upper end of the supporting seat 3, and the supporting seat 3 provides support for the lower die 91; the upper surface of the lower die 91 is provided with bending grooves 92 and lining strip grooves 93 symmetrically, and the lining strip grooves 93 are communicated with the bending grooves 92; the lining strips 94 are movably inserted into the bending grooves 92, the lining strip grooves 93 provide mounting positions for the lining strips 94, the lining strips 94 are nylon lining strips, the cross sections of the nylon lining strips are parallelogram, the hardness of the nylon lining strips is lower than that of a metal plate, and the processing is convenient; a collecting groove 13 is formed in the middle of the lower die 91, and the collecting groove 13 is communicated with the lower end of the bending groove 92; the lower surface mounting holes of the lining strips 94 are internally provided with inserting columns 15, the bottom walls of the lining strip grooves 93 are provided with jacks 14 which are uniformly distributed, and the inserting columns 15 are movably inserted into the vertically corresponding jacks 14 respectively.

The working principle of the utility model is as follows:

placing a metal plate on the upper surface of a whole formed by the lower die 91 and the lining strips 94, then regulating and controlling the switch 8, controlling high-pressure hydraulic oil to be delivered to the hydraulic cylinder 5 by the operation of a hydraulic pump of the hydraulic station 10 through the control of an electromagnetic directional valve, extending the telescopic end of the hydraulic cylinder 5 to drive the upper die base 6 to move downwards, driving the upper die base 6 to drive the upper die 7 and the sliding block 12 to move downwards, enabling the sliding block 12 to slide downwards along the dovetail groove plate 11 to provide support and guide for the upper die base 6, enabling the upper die 7 to move downwards to be in contact with the metal plate, enabling the upper die 7 to press the metal plate downwards, enabling the metal plate and the lining strips 94 to slide, enabling the lower surface of the metal plate to be attached to the wall of the bending groove 92, and enabling the metal plate to be subjected to plastic deformation to finish bending of the metal plate;

then the telescopic end of the hydraulic cylinder 5 is contracted and reset, and foreign matters falling into the bending groove 92 can roll into the collecting groove 13 in the using process and cannot influence bending;

after the lining strip 94 is used for a period of time and worn, the lining strip 94 can be moved upwards, the lining strip 94 drives the inserting column 15 to move upwards, the inserting column 15 is separated from the inserting hole 14, the lining strip 94 and the inserting column 15 are further taken down, the lining strip 94 is re-processed, the cross section of the lining strip 94 is parallelogram, the surfaces of the lining strip 94, which are not adjacent, are parallel to each other, the lining strip 94 can be conveniently processed, and then the new lining strip 94 and the inserting column 15 are replaced.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a no trace bending device of sheet metal which characterized in that: comprises a portal frame (1) and a lower die unit (9);

the lower end of the front side face of the portal frame (1) is symmetrically provided with connecting blocks (2), and the front side faces of the connecting blocks (2) are fixedly connected with the rear side face of the supporting seat (3); a hydraulic cylinder (5) is arranged at the upper end of the front side face of the portal frame (1) through a fixed seat (4), an upper die holder (6) is arranged at the telescopic end of the hydraulic cylinder (5), and an upper die (7) is arranged in an installation groove of the upper die holder (6); a hydraulic station (10) is arranged in the portal frame (1) through a support bar, and an oil inlet of the hydraulic cylinder (5) is communicated with an oil outlet of the hydraulic station (10);

the lower die unit (9) is arranged at the upper end of the supporting seat (3) and is matched with the upper die (7); the lower die unit (9) comprises a lower die (91), a bending groove (92), a lining strip groove (93) and a lining strip (94); the lower die (91) is arranged at the upper end of the supporting seat (3), the upper surface of the lower die (91) is provided with bending grooves (92) and lining grooves (93) symmetrically, the lining grooves (93) are communicated with the bending grooves (92), lining strips (94) are movably inserted into the bending grooves (92), and the lining strips (94) are nylon lining strips;

the hydraulic support is characterized by further comprising a control switch (8), wherein the control switch (8) is arranged on the front side face of the support seat (3), and the input end of the hydraulic station (10) is electrically connected with the output end of the control switch (8).

2. A traceless bending device for metal sheets according to claim 1, characterized in that: the cross section of the lining strip (94) is parallelogram.

3. A traceless bending device for metal sheets according to claim 1, characterized in that: a collecting groove (13) is formed in the middle of the lower die (91), and the collecting groove (13) is communicated with the lower end of the bending groove (92).

4. A traceless bending device for metal sheets according to claim 1, characterized in that: insert columns (15) are arranged in the lower surface mounting holes of the lining strips (94), jacks (14) which are uniformly distributed are formed in the bottom wall of the lining strip groove (93), and the insert columns (15) are movably inserted into the vertically corresponding jacks (14) respectively.

5. A traceless bending device for metal sheets according to claim 1, characterized in that: the front of the portal frame (1) is symmetrically provided with dovetail groove plates (11), the rear side face of the upper die base (6) is symmetrically provided with sliding blocks (12), and the sliding blocks (12) are respectively in sliding connection with the dovetail groove plates (11).