CN111015261A

CN111015261A - Narrow strip thin metal plate arc forming combined tool

Info

Publication number: CN111015261A
Application number: CN201911249751.6A
Authority: CN
Inventors: 于春秋; 何玥琳; 李亚英; 李学岩; 施晓涵; 董学峰
Original assignee: Beijing North Vehicle Group Corp
Current assignee: Beijing North Vehicle Group Corp
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-04-17
Anticipated expiration: 2039-12-09
Also published as: CN111015261B

Abstract

The invention provides a narrow strip thin metal plate arc forming combined tool, which comprises a template assembly and a handle assembly for bending. The template of the template assembly can be assembled with a plurality of pin columns, namely, a combined pin column arranged on the outer side and a single pin column arranged in the middle of each combined pin column, and the combined pin columns form a triangle, a quadrangle or a polygon above the triangle, so that the continuous circle-touching of the circular arc of the polygon corner can be met, and the single circular arc-touching can also be met. A pin connecting hole is processed at the front end of the handle of the round-touch handle assembly, and the handle is placed on the corresponding pin through the pin connecting hole when in round-touch; and a bending pin shaft mounting hole is processed behind the pin column connecting hole and is used for mounting bending pin shafts of different types. The invention has the advantages of simple process, good quality, high speed, high production efficiency, accurate arc forming of products and good consistency when the invention is used for arc forming of thin metal plates.

Description

Narrow strip thin metal plate arc forming combined tool

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a narrow strip thin metal plate arc forming combined tool.

Background

In the field of machine manufacturing, a method for forming and processing the arc of a triangular, quadrangular or more polygonal frame body of a narrow thin metal plate generally welds a group of pin columns on a flat plate, the pin columns are positioned at each corner of the frame body, and the radius of the pin columns is consistent with the arc of the corner of the frame body. The operation method is that one end of the narrow thin metal plate is fixed on a simple tool, then the thin metal plate is manually touched to be round at each arc position, and the thin metal plate is shaped by a mallet.

For a b-clip to secure a tube. The processing method is generally that a V-shaped workpiece is firstly folded and then manually made into a circle by a circular material, but the shape and the radian of the workpiece processed by the method are not standard, the repair rate is high, and the processing speed is low.

Disclosure of Invention

Technical problem to be solved

The invention provides a narrow-strip thin metal plate arc forming combined tool, which aims to solve the technical problems of irregular radian and low production efficiency.

(II) technical scheme

In order to solve the technical problem, the invention provides a narrow strip thin metal plate arc forming combined tool, which comprises a template assembly and a bending handle assembly; wherein the content of the first and second substances,

the template assembly comprises a module, a pin, a baffle plate and a fixing device; the plurality of sets of pin columns are fixed at different positions on the module and used for fixing the bending handle assembly according to the requirement of forming the circular arc of the metal plate; the baffle is fixed on the module and used for fixing the metal plate; the fixing device is fixed on the module and used for pressing the metal plate and the baffle plate tightly;

the bending handle assembly comprises a handle and a bending pin; the handle is provided with a pin connecting hole at the front end, and the handle is placed on the corresponding pin through the pin connecting hole when being round; a mounting hole of the round pin shaft for mounting the round pin shaft is processed behind the pin column connecting hole; a screw is processed above the bending round pin shaft and is locked and fixed after passing through a bending round pin shaft mounting hole.

Further, the fixing device comprises a T-shaped plate, a fixing bolt and a tightening bolt; the T-shaped plate is formed by connecting a vertical plate and a bottom plate, a threaded hole is machined in the vertical plate, a jacking bolt penetrates through the threaded hole of the vertical plate and extends out of the baffle, and the T-shaped plate is fixed with the module.

Further, the plurality of sets of pins includes combination pins disposed on an outer side, and a single pin disposed in a middle of the combination pins; the baffle comprises a first baffle and a second baffle, and the first baffle is arranged between two of the combined pins; the second baffle is arranged on the side of the single pin column, and a hole for the puller bolt to pass through is formed in the second baffle.

Furthermore, the upper portion of round pin post is handle location round pin axle, and the height is unanimous with the thickness of handle in the handle assembly of making a round, and the lower part is the square column of being connected with the module, and the cylindrical external diameter in middle part is the circular arc diameter of metal sheet product circle of making a round, and the cylindrical height in middle part is unanimous with metal sheet product width.

Further, the handle is Z-shaped.

Further, the bending round pin shaft comprises a universal bending round pin shaft and a b-shaped clip bending round pin shaft; wherein, the universal bending round pin shaft is convex, and the b-shaped clip bending round pin shaft is tadpole-shaped.

Further, the bending round pin shaft mounting holes are long round holes and are used for mounting different types of bending round pin shafts.

Further, a screw above the round pin shaft penetrates through the round pin shaft mounting hole and is screwed and fixed through a lock nut and a flat pad.

(III) advantageous effects

Drawings

FIG. 1 is a front view of a circular arc forming assembly fixture in an embodiment of the present invention;

FIG. 2 is a top view of the arc forming assembly of the embodiment of the present invention;

FIG. 3 is a block diagram of an embodiment of the present invention;

FIG. 4 is a schematic structural view of a fixing device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a bending process of a rectangular frame of the arc forming combined tool in the embodiment of the invention;

FIG. 6 is a schematic view of a bending process of a pipe fixing clip of the arc forming combined tool in an embodiment of the invention.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

The present embodiment provides a narrow thin metal plate arc forming combined tool, which has a structure shown in fig. 1 and includes a template assembly 1 and a handle assembly 2 for bending.

The formwork assembly 1 comprises a module 3, a pin 4, a fixing device 5, a first apron 6 and a second apron 7. As shown in fig. 3, the module 3 has a thickness of 10mm, and 12 groups of square holes of 17.5mm × 17.5mm are machined on the surface of the module for installing the pins 4; 3 groups of 2-M8 threaded holes are processed for installing the fixing device 5; a hole with the diameter of 3-phi 10.5mm is processed for installing the first baffle 6; a hole with the diameter of 2-phi 5.5mm is processed for installing the second baffle 7.

The upper part of the pin column 4 is a handle positioning pin shaft with the diameter phi of 10mm, the height of the pin shaft is consistent with the thickness of a handle 11 in the handle assembly 2 for bending, the lower part of the pin column is a square column with the diameter of 17mm multiplied by 17mm, the outer diameter of a middle cylinder is the circular arc diameter of the bending of a narrow strip thin metal plate product, and the height of the middle cylinder is consistent with the width of the product. According to the requirement of a processed product, a corresponding combined pin 4 or a single pin 4 is selected and installed in a corresponding square hole on the module 3.

A first baffle 6 is mounted between the two lowermost pins 4 of the module 3. As shown in fig. 4, the fixing device 5 includes a T-shaped plate 8, an M8 fixing bolt 9, and an M12 tightening bolt 10. The T-shaped plate 8 is formed by welding two plates in a T shape, a M12 threaded hole is formed in the middle of the vertical plate, and an M12 puller bolt 10 penetrates through the M12 threaded hole of the vertical plate and extends out of the first baffle 6 to play a role in fixing the narrow thin metal plate. The bottom plate of the T-shaped plate 8 is provided with a through hole of 2-phi 9mm, which corresponds to the threaded hole of 2-M8 on the module 3 and is fixed on the module 3 through a M8 fixing bolt 9.

For a single arc-shaped product, the individual pins 4 are arranged at the middle position of each combined pin 4, and the left side of the individual pin 4 is provided with the second shutter 7 and the fixing device 5. M12 puller bolt 10 in the fixing device 5 passes through the second baffle 7 and the hole with the diameter of 13mm on the narrow strip of sheet metal product, and plays a role in fixing the product and preventing the product from moving during the rounding process.

The bending handle assembly 2 comprises a handle 11, a universal bending pin 12 or a b-shaped clamp bending pin 13, a locking nut 14 and a flat pad 15. Wherein, the handle 11 is Z-shaped, the front end is processed with a pin connecting hole with the diameter of 11mm, and the pin connecting hole is placed on the corresponding pin 4 on the template 3 when being round. The back of the bending machine is provided with a long round hole for installing the bending pin shafts with different diameters, and the positions of the bending pin shafts can be adjusted front and back. The universal bending round pin shaft 12 is convex, and the b-shaped clip bending round pin shaft 13 specially designed for bending the b-shaped clip for fixing the pipe is in a tadpole shape. An M10 screw is processed above each type of the bending round pin shaft, and an M10 screw penetrates through a long round hole of the handle 11 and is fixed through a lock nut 14 and a flat pad 15.

The process of bending the quadrangular frame body into a circle is carried out by adopting the arc forming combined tool, as shown in fig. 5. Wherein, the middle position of the narrow thin metal plate is adhered to the first baffle 6 and fixed by a puller bolt 10 in the fixing device 5; the general round pin axle of will corresponding 12 of getting to the round handle assembly of getting to 2, will get to the round handle assembly 2 on phi 11mm hole penetrate in the lower right side round pin post 4 of template assembly 1, handle 11 anticlockwise rotations, accomplish first circular arc and take shape, secondly move to upper right side round pin post 4 department and carry out anticlockwise rotation, accomplish the second circular arc and take shape, move left side below round pin post 4 department once more and carry out clockwise rotation, accomplish the third circular arc and take shape, move left side round pin post 4 department at last and carry out clockwise rotation, accomplish the fourth circular arc and take shape.

The b-shaped clamp bending process for fixing the pipe is carried out by adopting the arc forming combined tool, as shown in fig. 6. Wherein, put narrow strip metal sheet one end between second baffle 7 and round pin post 4, b font checkpost bending round pin axle 13 is installed on the handle assembly 2 of bending into a palm, will bend into the round a handle on phi 11mm hole and penetrate the template assembly 1 on individual round pin post 4, handle 11 anticlockwise rotation 270 degrees, when the flat level on b font checkpost bending round pin axle 13, accomplish the b font checkpost bending round of fixed pipe.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A narrow-strip thin metal plate arc forming combined tool is characterized by comprising a template assembly and a bending handle assembly; wherein the content of the first and second substances,

the template assembly comprises a module, a pin, a baffle plate and a fixing device; the plurality of sets of pin columns are fixed at different positions on the module and used for fixing the round-bending handle assembly according to the requirement of forming the circular arc of the metal plate; the baffle is fixed on the module and used for fixing the metal plate; the fixing device is fixed on the module and used for pressing the metal plate and the baffle plate tightly;

2. The combined tool of claim 1, wherein the fixing device comprises a T-shaped plate, a fixing bolt and a puller bolt; the T-shaped plate is formed by connecting a vertical plate and a bottom plate, a threaded hole is machined in the vertical plate, a jacking bolt penetrates through the threaded hole of the vertical plate and extends out of the baffle, and the T-shaped plate is fixed with the module.

3. The combination tool of claim 2, wherein the plurality of pin sets comprises a combination pin disposed on an outer side and a single pin disposed in a middle of the combination pin; the baffle comprises a first baffle and a second baffle, and the first baffle is arranged between two of the combined pins; the second baffle is arranged on the side of the single pin column, and a hole for the puller bolt to pass through is formed in the second baffle.

4. The combined tool of claim 1, wherein the upper portion of the pin is a handle positioning pin shaft, the height of the pin shaft is consistent with the thickness of a handle in the handle assembly for bending, the lower portion of the pin shaft is a square column connected with the module, the outer diameter of the middle cylinder is the diameter of a circular arc of a bending part of a metal plate product, and the height of the middle cylinder is consistent with the width of the metal plate product.

5. The combination tool of claim 1, wherein the handle is in the shape of a zigzag.

6. The combined tool of claim 1, wherein the round pin shaft comprises a universal round pin shaft and a b-shaped clamp round pin shaft; wherein, the universal bending round pin shaft is convex, and the b-shaped clip bending round pin shaft is tadpole-shaped.

7. The combined tool according to claim 1, wherein the mounting holes for the round pins are oblong holes and are used for mounting different types of round pins.

8. The combined tool according to claim 1, wherein the screw above the round pin shaft penetrates through the round pin shaft mounting hole and is screwed and fixed through a lock nut and a flat pad.