WO2021073004A1

WO2021073004A1 - Bending and punching device for automobile decorative strip

Info

Publication number: WO2021073004A1
Application number: PCT/CN2020/071312
Authority: WO
Inventors: 李居一
Original assignee: 宁波信泰机械有限公司; 宁波敏实汽车零部件技术研发有限公司
Priority date: 2019-10-18
Filing date: 2020-01-10
Publication date: 2021-04-22
Also published as: CN110743944A

Abstract

Disclosed is a bending and punching device for an automobile decorative strip, the device comprising a base (1); a clamping member arranged on the base (1), wherein a forming block (2) used for having a workpiece placed thereon is arranged in the clamping member; an end cutting member arranged on the base (1) and located on aside of the forming block (2); a rotating assembly arranged on the base (1) and rotationally connected to the clamping member; a moving assembly arranged on the rotating assembly, wherein a sliding pin (4) is movably arranged at one end of the moving assembly; and a bending block provided with a sliding hole (3), wherein the sliding pin (4) is movably inserted into the sliding hole (3), when the moving assembly moves forwards, one end of the bending block can be driven to abut against the forming block (2), and when the rotating assembly drives the moving assembly to rotate, the sliding pin (4) can slide in the sliding hole (3) and drive the bending block to rotate along the forming block (2). The device has the advantage that a force application point coincides with a bending point.

Description

Bending and punching device for automobile trim

Technical field

The invention belongs to the field of automobile parts processing equipment, and specifically relates to a bending and punching device for automobile trim strips.

Background technique

With the development of the automobile industry, many high-end cars will be installed with car decoration strips. When producing car decoration strips with a curvature, they need to be stretched and bent. The use of stretch-bending forming for conventional curvatures is a very convenient process, but for small When bending products, the disadvantages will be highlighted. When the bending machine is used to draw and bend products with small angles, it is formed by pulling force. It is easy to cause the cross-section of the car decoration strip to be thin, which cannot meet the requirements of the OEM. The bending method is easy to cause damage to the surface of the car decoration strip during stretching and bending, which seriously affects the product quality of the car decoration strip. In the prior art, the bending of the decoration strip is usually processed by a small angle bending machine, for example, the publication number is CN201810551581 .6 Chinese patent, which includes the main base, product bending placement module, product positioning component, bending component, bending swing component and bending drive component. The bending component is located next to the product positioning component and is used to provide bending force Acting on the car decoration strip makes the car decoration bend according to the curved cavity, the bending and swinging assembly is arranged under the bending assembly, and the bending drive assembly is arranged on one side of the main base and is used to provide the bending and swinging assembly for bending and swinging The driving force during movement, but in actual processing, the force point of the bending component and the bending forming point are not in the same straight line. The decorative strip is actually bent, which will cause the bending angle of the decorative strip to be formed. difference.

Summary of the invention

The technical problem to be solved by the present invention is to provide a bending and punching device for automobile trim strips in view of the current state of the art.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: proposing a bending and punching device for automobile trim strips, including: a base;

A clamping piece, which is arranged on the base, and a forming block for placing a workpiece is arranged in the clamping piece;

An end cutting piece, which is arranged on the base and located on the side of the forming block;

A rotating component, which is arranged on the base and is rotatably connected with the clamping member;

The moving component is arranged on the rotating component, and one end of the moving component is movably provided with a sliding pin;

The bending block is provided with a sliding hole, the sliding pin is movably inserted in the sliding hole, and when the moving assembly moves forward, one end of the bending block can be driven to abut against the forming block;

When the rotating component drives the moving component to rotate, the sliding pin can slide in the sliding hole and drive the bending block to rotate along the forming block.

In the above-mentioned automotive trim bending and punching device, the moving assembly includes a moving cylinder, which is arranged on the rotating assembly, one end of the moving cylinder is connected with a moving block, and the moving block is connected to the rotating assembly. The components are movably connected, the upper end of the moving block is provided with a U-shaped block, the sliding pin is provided on the upper end of the U-shaped block, and the end of the U-shaped block movably abuts against the side surface of the bending block.

In the aforementioned automotive trim bending and punching device, the bending block includes a Z-shaped plate and a bending plate, the bending plate is connected to the Z-shaped plate, and one end of the bending plate movably abuts against On the forming block, the sliding hole is opened with the Z-shaped plate, the Z-shaped plate has a rotating surface, and the end of the U-shaped block movably abuts against the rotating surface.

In the aforementioned automotive trim bending and punching device, the rotating assembly includes: a driving cylinder, which is rotatably connected with the base;

A rotating plate, one end of the rotating plate is rotatably connected with the drive cylinder, the middle of the rotating plate is rotatably connected with the clamping member, the moving cylinder is arranged at the other end of the rotating plate, and the moving block is slidably arranged on the Rotate the board.

In the aforementioned automotive trim bending and punching device, a limit block is provided at the lower end of the rotating plate, an arc-shaped limit plate is provided on the base, and the limit block and the arc-shaped limit plate Activity card connection.

In the above-mentioned bending and punching device for automobile trim strips, the clamping member includes: a connecting table which is arranged on the base, the forming block is arranged above the connecting table, and the connecting table is A rotating shaft is inserted, and the rotating shaft is movably inserted in the middle of the rotating plate;

A pressing piece, which is arranged on the connecting platform and located above the forming block;

The side pressure piece is connected with the connecting platform and is located at the side of the forming block.

In the above-mentioned automotive trim bending and punching device, the lower pressing member includes a lower pressing oil cylinder, one end of the lower pressing oil cylinder penetrates the forming block and is connected to the connecting platform, and the lower pressing oil cylinder is upper A lower pressing plate is provided, and the lower pressing plate is located above the forming block.

In the aforementioned automotive trim bending and punching device, the pressure measuring member includes a side pressure oil cylinder connected to the connecting table, one end of the side pressure oil cylinder is provided with a side pressure block, and the side pressure block It is slidably connected with the connecting platform and is located at the side of the forming block.

In the above-mentioned automotive trim bending and punching device, the end cutting member includes: a mounting table, which is arranged on the base, the mounting table is provided with a pressing air cylinder, and the pressing air cylinder A lower pressing block is provided at the lower end, and the lower pressing block is slidably connected to the mounting table, and a supporting block is arranged on the mounting table, and the supporting block is located below the lower pressing block and is flush with the forming block;

The punching cylinder is arranged on the lower pressing block, the lower end of the punching cylinder is connected with a cutting knife, and the cutting knife movably penetrates the lower pressing block.

Compared with the prior art, the advantage of the present invention is that the bending block itself rotates along the forming block when the automobile trim strip bending and punching device is bending the trim strip, so as to ensure the force point and the bending point of the bending block Coinciding to achieve a better bending effect.

Description of the drawings

Figure 1 is a three-dimensional view of the bending and punching device for automotive trim strips;

Figure 2 is a connection structure diagram of the clamping piece, the rotating assembly, the moving assembly and the bending block.

Figure 3 is a connection structure diagram of the bending block and the moving block;

Fig. 4 is a perspective view of the moving block.

In the figure, the base 1, the forming block 2, the sliding hole 3, the sliding pin 4, the moving cylinder 5, the moving block 6, the U-shaped block 7, the Z-shaped plate 8, the bending plate 9, the driving cylinder 10, the rotating plate 11, the limiter Position block 12, curved limit plate 13, connecting table 14, rotating shaft 15, lower pressure cylinder 16, lower pressure plate 17, side pressure cylinder 18, side pressure block 19, mounting table 20, lower pressure cylinder 21, lower pressure block 22. Support block 23, punching cylinder 24, cutter 25, rotating surface 26.

Detailed ways

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

As shown in Figures 1 to 4, the bending and punching device for automotive trim strips includes: a base 1; a clamping piece, which is arranged on the base 1, and the clamping piece is provided with a forming block 2 for placing a workpiece; The end cutting part is arranged on the base 1 and located on the side of the forming block 2; the rotating assembly is arranged on the base 1 and is rotatably connected with the clamping part; the mobile assembly is arranged on the rotating assembly, and one end of the mobile assembly is movable A sliding pin 4 is provided; the bending block is provided with a sliding hole 3, and the sliding pin 4 is movably inserted in the sliding hole 3, and when the moving assembly moves forward, one end of the bending block can be driven to abut against the forming block 2; When the rotating component drives the moving component to rotate, the sliding pin 4 can slide in the sliding hole 3 and drive the bending block to rotate along the forming block 2.

The forming block 2 is used to place the work piece. The clamping piece can clamp the work piece on the forming block 2. After the work piece is clamped, the end cutting piece punches the end of the work piece to remove the burrs at the end of the work piece. When the moving assembly moves forward, it can drive the bending block to move forward and abut against the forming block 2, which is equivalent to pressing the end of the bending block against the workpiece, and the rotating assembly can drive the moving assembly to rotate, because the bending block One end abuts against the workpiece, and the sliding pin 4 is movably arranged in the sliding hole 3. When the moving assembly rotates, the sliding pin 4 can slide in the sliding hole 3, thereby changing the force point of the sliding pin 4 on the sliding hole 3. The bending block itself rotates. Because the moving component pushes the bending block forward, the bending block can drive the workpiece to bend into the same shape as the forming block 2. During the bending process, the bending block itself is formed along the forming block. Block 2 rotates, each bending point and the force point of the bending block are coincident, that is, the bending forming point and the force point of the workpiece are the same, so that it can be ensured that the bending angle is bent instead of The bending is ensured that the forming arc after bending is smooth and meets the bending requirements.

The moving assembly includes a moving cylinder 5, which is arranged on the rotating assembly. One end of the moving cylinder 5 is connected with a moving block 6, and the moving block 6 is movably connected with the rotating assembly. The upper end of the moving block 6 is provided with a U-shaped block 7, and the sliding pin 4 is arranged on the U The upper end of the U-shaped block 7 and the end of the U-shaped block 7 movably abut against the side of the bending block.

The moving cylinder 5 can drive the moving block 6 to slide on the rotating assembly, and then the moving block 6 can push the bending block forward so that the end of the bending block is pressed against the workpiece. The moving block 6 is provided with a U-shaped block 7 and a U-shaped block. 7 is movably against the side of the bending block. During the sliding pin 4 sliding in the sliding hole 3, the moving block 6 is driven to rotate by the rotating assembly and the bending block itself rotates at the same time, so the side of the bending block can be Abutting at different positions of the U-shaped block 7 will not affect the rotation of the bending block itself, ensuring that the bending forming point and the stress point of the workpiece are the same, that is, the forming point and the stress point are in the same phase.

The bending block includes a Z-shaped plate 8 and a bending plate 9. The bending plate 9 is connected to the Z-shaped plate 8. One end of the bending plate 9 movably abuts against the forming block 2, and the sliding hole 3 is opened on the Z-shaped plate 8. The Z-shaped plate 8 has a rotating surface 26, and the end of the U-shaped block 7 movably abuts on the rotating surface 26.

The bending plate 9 and the Z-shaped plate 8 are fixedly connected. During the bending process, the U-shaped block 7 rotates with the rotating assembly. At this time, the end of the U-shaped block 7 can slide on the rotating surface 26 to drive the Z-shaped plate 8 The rotation occurs, that is, the bending plate 9 is driven to rotate, so that the bending plate 9 rotates along the forming block 2.

The rotating assembly includes: a driving cylinder 10, which is rotatably connected with the base 1; a rotating plate 11, one end of the rotating plate 11 is rotatably connected with the driving cylinder 10, the middle of the rotating plate 11 is rotatably connected with the clamping member, and the moving cylinder 5 is arranged on the rotating plate 11. At one end, the moving block 6 is slidably arranged on the rotating plate 11.

The middle part of the rotating plate 11 is rotatably connected with the clamping member. When the driving cylinder 10 is working, the rotating plate 11 can be driven to rotate, and the rotating plate 11 can drive the moving cylinder 5 and the moving block 6 to rotate.

A limit block 12 is arranged at the lower end of the rotating plate 11, and an arc-shaped limit plate 13 is arranged on the base 1, and the limit block 12 and the arc-shaped limit plate 13 are movably clamped.

During the rotation of the rotating plate 11, the limit block 12 can slide on the arc-shaped limit plate 13 to prevent the rotating plate 11 from shaking up and down, that is, to ensure that the bending plate 9 does not shake up and down, and the bending accuracy is ensured.

The clamping piece includes: a connecting table 14 which is arranged on the base 1, the forming block 2 is arranged above the connecting table 14, a rotating shaft 15 is inserted on the connecting table 14, and the rotating shaft 15 is movably inserted in the middle of the rotating plate 11; The pressing piece is arranged on the connecting platform 14 and located above the forming block 2; the side pressing piece is connected with the connecting platform 14 and is located on the side of the forming block 2.

The rotating shaft 15 is inserted in the middle of the rotating plate 11 to drive the rotating plate 11 to rotate around the rotating shaft 15 when the rotating cylinder is working, so as to improve the smoothness of the rotating plate 11 and prevent the rotating plate 11 from jamming.

The lower pressing piece can move downwards, and then the lower end of the lower pressing piece can abut against the upper end surface of the workpiece, the side pressing piece can move laterally and abut against the side of the workpiece. Under the combined action of the side pressing piece and the lower pressing piece, the workpiece can be moved Clamping can prevent the workpiece from shaking during bending and improve the bending accuracy.

The lower pressing member includes a lower pressing oil cylinder 16, one end of the lower pressing oil cylinder 16 penetrates the forming block 2 and is connected to the connecting platform 14, the lower pressing oil cylinder 16 is provided with a lower pressing plate 17, and the lower pressing plate 17 is located above the forming block 2.

The lower pressure oil cylinder 16 can drive the lower pressure plate 17 to move up and down, thereby causing the lower pressure plate 17 to abut or stay away from the workpiece.

The pressure measuring part includes a side pressure oil cylinder 18 which is connected with the connecting table 14. One end of the side pressure oil cylinder 18 is provided with a side pressure block 19 which is slidably connected to the connection table 14 and is located on the side of the forming block 2.

The side pressure cylinder 18 can drive the side pressure block 19 to slide back and forth, thereby causing the side pressure to lean against or away from the side of the workpiece.

The end cutting piece includes: a mounting table 20, which is arranged on the base 1, a pressing cylinder 21 is arranged on the mounting table 20, a pressing block 22 is arranged at the lower end of the pressing cylinder 21, and the pressing block 22 is slidably connected to the mounting table 20 , The mounting table 20 is provided with a supporting block 23, which is located below the lower pressing block 22 and flush with the forming block 2; the punching cylinder 24 is arranged on the lower pressing block 22, and the lower end of the punching cylinder 24 is connected with a cutting The knife 25 and the cutting knife 25 movably penetrate the lower pressing block 22.

After the workpiece is placed on the forming block 2, one end of the workpiece can be supported by the support block 23, and the press cylinder 21 can drive the lower press block 22 to move up and down, so that the lower press block 22 abuts against the workpiece, the lower press block 22 and the support block 23 works together to clamp the end of the workpiece. At this time, the punching cylinder 24 drives the cutter 25 downward to move, and the cutter 25 can punch the end of the workpiece.

The specific embodiments described herein are merely examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the specific embodiments described or substitute similar methods, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

A bending and punching device for automobile trim strips is characterized in that it comprises:

Base

A clamping piece, which is arranged on the base, and a forming block for placing a workpiece is arranged in the clamping piece;

An end cutting piece, which is arranged on the base and located on the side of the forming block;

A rotating component, which is arranged on the base and is rotatably connected with the clamping member;

The moving component is arranged on the rotating component, and one end of the moving component is movably provided with a sliding pin;

The bending block is provided with a sliding hole, the sliding pin is movably inserted in the sliding hole, and when the moving assembly moves forward, one end of the bending block can be driven to abut against the forming block;

When the rotating component drives the moving component to rotate, the sliding pin can slide in the sliding hole and drive the bending block to rotate along the forming block.
The automotive trim bending and punching device according to claim 1, wherein the moving assembly comprises a moving cylinder, which is arranged on the rotating assembly, and one end of the moving cylinder is connected with a moving block, so The moving block is movably connected to the rotating assembly, the upper end of the moving block is provided with a U-shaped block, the sliding pin is provided on the upper end of the U-shaped block, and the end of the U-shaped block movably abuts against the bending Block side.
The automobile trim strip bending and punching device according to claim 2, wherein the bending block includes a Z-shaped plate and a bending plate, and the bending plate is connected with the Z-shaped plate to be bent. One end of the bent plate movably abuts against the forming block, the sliding hole is opened with the Z-shaped plate, the Z-shaped plate has a rotating surface, and the end of the U-shaped block movably abuts against the rotating surface.
A bending and punching device for automobile trim strips according to claim 2, wherein the rotating assembly comprises: a driving oil cylinder, which is rotatably connected with the base;

A rotating plate, one end of the rotating plate is rotatably connected with the drive cylinder, the middle of the rotating plate is rotatably connected with the clamping member, the moving cylinder is arranged at the other end of the rotating plate, and the moving block is slidably arranged on the Rotate the board.
A bending and punching device for automobile trim strips according to claim 4, wherein a limit block is provided at the lower end of the rotating plate, and an arc-shaped limit plate is provided on the base, and the limit block is connected with The arc-shaped limit plate is movably clamped.
A bending and punching device for automobile trim strips according to claim 4, wherein the clamping member comprises: a connecting table arranged on the base, and the forming block is arranged on the connecting table Above, a rotating shaft is inserted into the connecting platform, and the rotating shaft is movably inserted in the middle of the rotating plate;

A pressing piece, which is arranged on the connecting platform and located above the forming block;

The side pressure piece is connected with the connecting platform and is located at the side of the forming block.
The automotive trim bending and punching device according to claim 6, wherein the lower pressing member comprises a lower pressing oil cylinder, and one end of the lower pressing oil cylinder penetrates the forming block and is connected to the connecting platform , The lower pressure oil cylinder is provided with a lower pressure plate, and the lower pressure plate is located above the forming block.
The automotive trim bending and punching device according to claim 6, wherein the pressure measuring member includes a side pressure oil cylinder connected to the connecting table, and one end of the side pressure oil cylinder is provided with a side pressure The side pressure block is slidably connected to the connecting table and is located on the side of the forming block.
The automotive trim bending and punching device according to claim 1, wherein the end cutting member comprises: a mounting table, which is arranged on the base, and the mounting table is provided with a downward pressure The lower end of the lower pressure cylinder is provided with a lower pressure block, the lower pressure block is slidably connected to the mounting table, and a support block is provided on the mounting table. The support block is located below the lower pressure block and is connected to The forming blocks are flush;

The punching cylinder is arranged on the lower pressing block, the lower end of the punching cylinder is connected with a cutting knife, and the cutting knife movably penetrates the lower pressing block.