CN213033362U

CN213033362U - Two-degree-of-freedom edge folding device driven by screw rod

Info

Publication number: CN213033362U
Application number: CN202021839934.1U
Authority: CN
Inventors: 冷志斌; 王金荣; 周祥; 涂芬芬; 王尚斌; 徐鹏飞
Original assignee: Jiangsu Yawei Machine Tool Co Ltd
Current assignee: Jiangsu Yawei Machine Tool Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-23
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a two degree of freedom hem devices of lead screw driven in the flanging machine field, hold-down mechanism that sets up in the frame, correspond with hold-down mechanism and be equipped with the hem mould that is used for bending the work piece, the hem mould sets up on the hem roof beam, the hem roof beam is connected on sliding support through longitudinal movement mechanism, sliding support connects in the frame through transverse movement mechanism, longitudinal movement mechanism is including installing the longitudinal drive motor on sliding support, longitudinal drive motor is through reduction gear two, shaft coupling two is connected with longitudinal screw drive, both ends are respectively through last about the longitudinal screw, lower bearing assembly installs on sliding support, the hem roof beam back is equipped with vertical hole or groove, vertical lead screw through hole or groove, the meshing is provided with vertical nut on the longitudinal screw, vertical nut and hem roof beam fixed connection. The utility model discloses shorten the distance of hem mould to lead screw, reduced the arm of force, the difficult unbalance loading that takes place of lathe. It can be used for the flanging processing of various plate-shaped workpieces.

Description

Two-degree-of-freedom edge folding device driven by screw rod

Technical Field

The utility model relates to a sheet metal working forming machine, in particular to flanging machine.

Background

In the chinese patent database, a bending mechanism is disclosed, and its application number: CN 201821572050.7; the application date is: 20180926, respectively; the publication number is: CN 209272187U; the publication date is: 20190820, respectively; the device comprises a horizontal bending driving device, wherein a horizontal bending shaft arranged in the horizontal direction is arranged on the horizontal bending driving device; the horizontal bending shaft is provided with a linkage bracket; the upper end of the linkage support is also provided with an upper and lower bending driving device, the upper and lower bending driving device is provided with an upper and lower bending shaft in the vertical direction, the shaft end of the upper and lower bending shaft is provided with a flanging die support, and the upper and lower ends of the flanging die support are respectively provided with an upper flanging die and a lower flanging die which correspond to each other in the upper and lower positions; the device also comprises a downward pressing driving lifting device, the downward pressing driving lifting device is vertically arranged, a downward pressing shaft of the downward pressing driving lifting device extends downwards, and a pressing plate is arranged at the shaft end of the downward pressing driving lifting device; the press plate is provided with a detachable upper press knife, and a lower press knife fixedly arranged is arranged below the upper press knife; the upper and lower flanging dies correspond to the upper and lower pressing knives.

The disadvantages are that: the shaft ends of the upper bending shaft and the lower bending shaft of the device are provided with the flanging die support, so that a large deflection moment can be generated during working, unbalance loading is easy to occur, and the use reliability of a machine tool is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two degree of freedom hem devices of lead screw driven can avoid the lathe unbalance loading, guarantees the use reliability of device.

The purpose of the utility model is realized like this: a two-degree-of-freedom edge folding device driven by a screw rod comprises a rack, wherein a pressing mechanism used for pressing a workpiece is arranged on the rack, an edge folding die used for bending the workpiece is arranged corresponding to the pressing mechanism, the edge folding die is arranged on an edge folding beam, the edge folding beam is connected to a sliding support through a longitudinal movement mechanism, the sliding support is connected to the rack through a transverse movement mechanism, the longitudinal movement mechanism comprises a longitudinal driving motor arranged on the sliding support, the output end of the longitudinal driving motor is in transmission connection with a longitudinal screw rod through a second speed reducer and a second coupling, the upper end and the lower end of the longitudinal screw rod are respectively and rotatably arranged on the sliding support through an upper bearing assembly and a lower bearing assembly, a hole or a groove longitudinally penetrating through the edge folding beam is formed in the back of the edge folding beam, the longitudinal screw rod penetrates through the hole or the, and the longitudinal nut is fixedly connected with the flanging beam.

The utility model is driven by the lead screw, so that the flanging die has the freedom of movement in the transverse and longitudinal directions, and the bending position can be accurately adjusted; the upper end and the lower end of the longitudinal screw rod are respectively and rotatably arranged on the sliding support through an upper bearing assembly and a lower bearing assembly, so that the two ends of the screw rod are strongly supported and restrained, and the bearing capacity of the screw rod is strong; the back of the flanging beam is provided with a hole or a groove which longitudinally penetrates through the flanging beam, and the longitudinal screw rod penetrates through the hole or the groove, so that the distance from the flanging die to the screw rod can be shortened, the force arm is reduced, the machine tool is not easy to generate unbalance loading, and the use reliability of the device is improved. It can be used for the flanging processing of various plate-shaped workpieces.

The further improvement is that the longitudinal nut is arranged at the top position of the hole or the groove, and can be arranged at the outer side of the top, also can be arranged at the inner side of the top or can be embedded at the top. Alternatively, the longitudinal nut is mounted in the bore or slot. The device can ensure that the folded edge beam has a certain up-and-down movement space, and aims to shorten the length of the longitudinal wire rod as much as possible, so that the distance between the upper bearing assembly and the lower bearing assembly is shortened, and the bearing strength is improved.

In order to further strengthen the support, the flanging beam is connected with the sliding support through a longitudinal guide rail and a longitudinal sliding block, and the longitudinal sliding block is arranged in the longitudinal guide rail in a matching way.

As the utility model discloses a further improvement lies in, lateral motion mechanism includes the transverse guide who sets up in the frame, and the transverse guide fit in is provided with horizontal slider, and horizontal slider is fixed in the sliding support bottom, is equipped with the horizontal driving motor in the frame, and the axle head of horizontal driving motor is connected with horizontal screw drive through reduction gear one, shaft coupling one, and horizontal lead screw one end is rotationally installed on sliding support through horizontal bearing assembly, and the meshing sets up between horizontal nut on horizontal lead screw and the sliding support continuous through the spherical gasket. The spherical gasket comprises two spherical surfaces which are matched with each other, can be self-adaptively centered when being installed, has good bearing capacity, reduces the influence of deflection torque on the transverse nut to the greatest extent, and ensures that the transverse nut and the transverse screw rod move smoothly.

The utility model discloses in, two cantilevers are stretched out respectively at both ends about the hem roof beam, make the hem roof beam section be C shape, and the hem mould includes hemming die and lower hemming die, goes up hemming die and sets up the inboard in opposite directions at the C shape opening of hem roof beam respectively with lower hemming die. Its substitution scheme can be, a cantilever is stretched out to the hem roof beam side, makes the hem roof beam section be the T shape of lying down, the hem mould is installed on the cantilever, the hem mould can realize under the drive of the hem roof beam of T shape including having the whole hemming die of the portion of bending and the portion of bending down: the upper bending part has two functions of upward positive folding and downward negative folding. The two modes can conveniently carry out flanging processing on the workpiece.

The improved structure of the folding edge beam is characterized in that three groups of longitudinal guide rails and longitudinal sliding blocks are arranged in the length direction of the folding edge beam at intervals, two groups of longitudinal screw rods are arranged in the length direction of the folding edge beam at intervals, and two longitudinal screw rods are positioned between gaps of the three corresponding longitudinal guide rails. The scheme ensures that the mechanism of the device has reasonable configuration, the edge folding beam is stressed in a balanced way during working, and the processing precision of workpieces is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a partially-assembled three-dimensional structure of the hemming beam.

Fig. 3 is another schematic structural diagram of the present invention.

Fig. 4 is a partially enlarged view of a in fig. 3.

In the figure, 1 a machine frame, 2 lower bearing assemblies, 3 longitudinal sliding blocks, 4 longitudinal guide rails, 5 lower flanging dies, 6 pressing mechanisms, 7 upper flanging dies, 8 longitudinal nuts, 9 upper bearing assemblies, 10 second couplers, 11 second reducers, 12 longitudinal driving motors, 13 longitudinal screw rods, 14 flanging beams, 15 sliding supports, 16 spherical gaskets, 17 transverse nuts, 18 first couplers, 19 transverse driving motors, 20 first reducers, 21 transverse bearing assemblies, 22 transverse screw rods, 23 transverse sliding blocks, 24 transverse guide rails, 25 integral flanging dies, 25a upper bending parts and 25b lower bending parts.

Detailed Description

Example 1

As shown in fig. 1-2, the two-degree-of-freedom edge folding device driven by a screw rod structurally comprises a frame 1, wherein a pressing mechanism 6 for pressing a workpiece is arranged on the frame 1, and the workpiece is pressed by the pressing mechanism 6 during work; and a folding die for bending the workpiece is arranged corresponding to the pressing mechanism 6, the folding die is arranged on a folding beam 14, the folding beam 14 is connected to a sliding support 15 through a longitudinal movement mechanism, and the sliding support 15 is connected to the frame 1 through a transverse movement mechanism.

The longitudinal movement mechanism comprises a longitudinal driving motor 12 arranged on a sliding support 15, the output end of the longitudinal driving motor 12 is in transmission connection with a longitudinal screw 13 through a second speed reducer 11 and a second coupling 10, the upper end and the lower end of the longitudinal screw 13 are respectively rotatably arranged on the sliding support 15 through an upper bearing assembly 9 and a lower bearing assembly 2, a hole longitudinally penetrating through a flanging beam 14 is formed in the back of the flanging beam 14, a longitudinal screw 13 penetrates through the hole, a longitudinal nut 8 is arranged on the longitudinal screw 13 in a meshed mode, and the longitudinal nut 8 is fixedly connected with the flanging beam 14. The longitudinal nut 8 is arranged at the top of the hole, can be arranged at the outer side of the top, can be arranged at the inner side of the top or is embedded at the top; instead, the longitudinal nut 8 is mounted in the hole. To shorten the length of the longitudinal screw 13 as much as possible, so that the distance between the upper bearing assembly 9 and the lower bearing assembly 2 is shortened, improving the load-bearing strength, in this embodiment the longitudinal nut 8 is mounted inside the top of the bore. The folding beam 14 is connected with the sliding support 15 through the longitudinal guide rail 4 and the longitudinal slide block 3, and the longitudinal slide block 3 is arranged in the longitudinal guide rail 4 in a matching way. The holes may also be replaced by slots.

The transverse movement mechanism comprises a transverse guide rail 24 arranged on the rack 1, a transverse sliding block 23 is arranged in the transverse guide rail 24 in a matched mode, the transverse sliding block 23 is fixed at the bottom of the sliding support 15, a transverse driving motor 19 is fixed on the rack 1, the shaft end of the transverse driving motor 19 is in transmission connection with a transverse screw rod 22 through a first speed reducer 20 and a first coupling 18, the transverse driving motor 19 can be directly fixed on the rack 1 or integrally fixed on the rack 1 after being connected with the first speed reducer 20, one end of the transverse screw rod 22 is rotatably installed on the sliding support 15 through a transverse bearing assembly 21, and a transverse nut 17 meshed with the transverse screw rod 22 is connected with the sliding support 15 through a spherical gasket 16.

The upper end and the lower end of the hemming beam 14 extend out of two cantilevers respectively to enable the section of the hemming beam 14 to be C-shaped, the hemming die comprises an upper hemming die 7 and a lower hemming die 5, and the upper hemming die 7 and the lower hemming die 5 are arranged on the opposite inner sides of a C-shaped opening of the hemming beam 14 respectively.

Three groups of longitudinal guide rails 4 and longitudinal sliding blocks 3 are arranged in the length direction of the folding beam 14 at intervals, two groups of longitudinal screw rods 13 are arranged in the length direction of the folding beam 14 at intervals, and two longitudinal screw rods 13 are positioned between the gaps of the three corresponding longitudinal guide rails 4.

When the folding machine works, the folding die is driven to move transversely by the transverse driving motor 19, and is driven to move longitudinally by the longitudinal driving motor 12, so that the folding die can have two directions of freedom of movement, and the bending position can be accurately adjusted; the upper end and the lower end of the longitudinal screw rod 13 are respectively and rotatably arranged on the sliding support 15 through the upper bearing assembly 9 and the lower bearing assembly 2, so that the two ends of the screw rod are strongly supported and restrained, and the bearing capacity of the screw rod is strong; the back of the flanging beam 14 is provided with a hole longitudinally penetrating through the flanging beam 14, and the distance from the flanging die to the screw rod can be shortened by the design of the through hole of the longitudinal screw rod 13, so that the force arm is reduced, the machine tool is not easy to generate unbalance loading, and the use reliability of the device is improved.

Example 2

As shown in fig. 3, another two-degree-of-freedom hemming device driven by a lead screw is different from embodiment 1 in that a cantilever is extended from the side of a hemming beam 14 to make the section of the hemming beam 14 in a horizontal T shape, a hemming die is mounted on the cantilever, and the hemming die includes an integral hemming die 25 having an upper bending portion 25a and a lower bending portion 25 b. Can be realized under the driving of the T-shaped folding beam: the upper bending part 25a performs two functions of upward positive folding and the lower bending part 25b performs downward negative folding.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims

1. The utility model provides a two degree of freedom hem devices of lead screw driven, includes the frame, be equipped with the hold-down mechanism that is used for compressing tightly the work piece in the frame, correspond with hold-down mechanism and be equipped with the hem mould that is used for bending the work piece, the hem mould sets up on the hem roof beam, the hem roof beam is connected on sliding support through longitudinal movement mechanism, and sliding support connects through lateral movement mechanism in the frame, its characterized in that: the longitudinal movement mechanism comprises a longitudinal driving motor arranged on the sliding support, the output end of the longitudinal driving motor is in transmission connection with a longitudinal screw rod through a second speed reducer and a second coupling, the upper end and the lower end of the longitudinal screw rod are respectively rotatably arranged on the sliding support through an upper bearing assembly and a lower bearing assembly, a hole or a groove longitudinally penetrating through the hemming beam is formed in the back of the hemming beam, the longitudinal screw rod penetrates through the hole or the groove, a longitudinal nut is arranged on the longitudinal screw rod in a meshed mode, and the longitudinal nut is fixedly connected with the hemming beam.

2. The screw-driven two-degree-of-freedom hemming device according to claim 1 wherein: the longitudinal nut is mounted at the top position of the hole or slot.

3. The screw-driven two-degree-of-freedom hemming device according to claim 1 wherein: the longitudinal nut is mounted in the bore or slot.

4. A screw-driven two-degree-of-freedom hemming device according to any one of claims 1 to 3 wherein: the folding edge beam is connected with the sliding support through a longitudinal guide rail and a longitudinal sliding block, and the longitudinal sliding block is arranged in the longitudinal guide rail in a matching mode.

5. A screw-driven two-degree-of-freedom hemming device according to any one of claims 1 to 3 wherein: the transverse movement mechanism comprises a transverse guide rail arranged on the rack, a transverse sliding block is arranged in the transverse guide rail in a matched mode, the transverse sliding block is fixed to the bottom of the sliding support, a transverse driving motor is arranged on the rack, the shaft end of the transverse driving motor is in transmission connection with a transverse screw rod through a first speed reducer and a first coupling, one end of the transverse screw rod is rotatably installed on the sliding support through a transverse bearing assembly, and the transverse nut meshed with the transverse screw rod is connected with the sliding support through a spherical gasket.

6. A screw-driven two-degree-of-freedom hemming device according to any one of claims 1 to 3 wherein: the upper end and the lower end of the flanging beam respectively extend out of the two cantilevers, so that the section of the flanging beam is C-shaped, the flanging die comprises an upper flanging die and a lower flanging die, and the upper flanging die and the lower flanging die are respectively arranged on the opposite inner sides of the C-shaped opening of the flanging beam.

7. A screw-driven two-degree-of-freedom hemming device according to any one of claims 1 to 3 wherein: the side face of the flanging beam extends out of a cantilever to enable the section of the flanging beam to be in a horizontal T shape, the flanging die is installed on the cantilever, and the flanging die comprises an integral flanging die with an upper bending portion and a lower bending portion.

8. A screw-driven two-degree-of-freedom hemming device according to any one of claims 1 to 3 wherein the longitudinal rails and the longitudinal blocks are arranged in three groups at intervals in the length direction of the hemming beam, the longitudinal screws are arranged in two groups at intervals in the length direction of the hemming beam, and two longitudinal screws are located between the gaps of the three corresponding longitudinal rails.