CN114798925A - Die adjusting device of numerical control section bar stretch bender and working method thereof - Google Patents

Abstract

The invention discloses a die adjustment device of a numerical control profile bending machine and a working method thereof. The device comprises a die base assembly and a die support plate assembly; On the main frame, the first surface of the vertical plate is provided with a guide rail arranged in a vertical direction; the die support plate assembly includes a guide rail with a T-shaped groove and a guide plate; the guide plate is used to be installed on the guide rail in a manner that can slide up and down along the guide rail, and A lift transmission mechanism is connected with the vertical plate of the mold base assembly; the guide plate is fixedly connected with the guide rail with T-shaped groove for installing the mold. The mold support plate assembly and the mold base base assembly are connected by guide rails. Driven by the lifting transmission mechanism, the mold support plate assembly rises and falls stably along the vertical direction; it realizes the rapid installation and adjustment of different parts molds, and the device has a compact structure and is easy to use. , Low manufacturing cost.

Description

A kind of numerical control profile bending machine die adjustment device and its working method

technical field

The invention belongs to the manufacturing field of numerically controlled profile bending machines, in particular to a die adjustment device for a numerically controlled profile bending machine and a working method thereof.

Background technique

Double-arm CNC profile drawing and bending machine is a special equipment used for drawing and bending of various cross-sectional shapes. It can be used in escalator accessories, aircraft sheet metal parts, high-speed rail, decorative profiles and other fields. As shown in Figure 1, the double-arm CNC profile bending machine equipment is mainly composed of a main frame 2, a pair of rotating arms 7, a stretching cylinder 5 and a sliding seat 6, a hydraulic unit and a digital control system.

The working principle is as follows: the mold 1 is installed on the main frame 2, the chucks 4 are respectively installed on the two stretching cylinders 5, and the chucks 4 clamp both ends of the profile 3 to be stretched. When the profile 3 to be stretched is stretched, the rotating arm 7 drives the stretching cylinder 5 to rotate around the main frame 2 and the die 1 , and under the restriction of the die 1 , the stretch forming of the profile 3 to be stretched is completed.

The stretching of various cross-sectional shapes into different components needs to be guaranteed by the mold, so the mold needs to be replaced frequently. In order to ensure the correct relative positional relationship between different molds and the chuck of the stretch bender, an adjustable mold installation device is required to adjust the mold position.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a mold adjusting device and a working method of a CNC profile bending machine, which can satisfy the rapid installation and adjustment of different parts molds of the CNC profile bending machine.

In order to achieve the above object, the present invention adopts the following technical solutions:

In a first aspect of the embodiments of the present invention, there is provided a mold adjustment device for a CNC profile bending machine, including a mold base assembly and a mold support plate assembly;

The formwork base assembly is an L-shaped plate, the horizontal plate is used to be installed on the main frame of the stretch-bender, and the first surface of the vertical plate is provided with guide rails arranged in the vertical direction;

The mold support plate assembly includes a guide rail with a T-shaped groove and a guide plate; the guide plate is used to be mounted on the guide rail in a way that can slide up and down along the guide rail, and is between the vertical plate of the mold base base assembly A lift transmission mechanism is connected; the guide plate is fixedly connected with the guide rail with T-shaped groove, and the guide rail with T-shaped groove is used for installing the mold.

As an optional solution of the embodiment of the present invention, connecting screw holes for connecting with the main frame are provided on the horizontal plate of the mold base base assembly.

As an optional solution of the embodiment of the present invention, a keyway for connecting with the main frame is provided on the horizontal plate of the mold base base assembly.

As an optional solution of the embodiment of the present invention, an oblique reinforcing plate is connected between the horizontal plate and the vertical plate of the formwork base assembly.

As an optional solution of the embodiment of the present invention, the lifting transmission mechanism is an adjusting screw assembly, the adjusting screw assembly is installed on the vertical plate of the mold base base assembly, and the guide plate is installed on the adjusting screw assembly. on the screw assembly and slidingly matched with the guide rail.

As an optional solution of the embodiment of the present invention, the adjusting screw assembly includes a screw, a screw fixing seat, a clamping block and a thrust ball bearing; the screw fixing seat is simultaneously fixed on two adjacent guide rails At the top, the lead screw is arranged between two adjacent guide rails, the outer ring of the thrust ball bearing is mounted on the lead screw fixing seat and is fixed and clamped by a clamping block, and the upper part of the lead screw is connected to the The inner ring of the thrust ball bearing is fixedly connected, and the bottom of the lead screw is threadedly connected with a threaded bushing;

The first surface of the guide plate is fixedly connected to the guide rail with the T-shaped groove, the second surface of the guide plate is provided with a connecting block, and the connecting block is provided with a vertical mounting hole, and the mounting hole is used for Connect the threaded bushing.

As an optional solution of the embodiment of the present invention, the guide rail is a T-shaped guide rail, and the two vertical edges of the second surface of the guide plate extend in the vertical direction and then buckle inwardly to form a buckle portion. The part is used for snap-fit installation on the T-shaped rail.

As an optional solution of the embodiment of the present invention, two adjacent guide rails form a set of guide rail assemblies, and two sets of guide rail assemblies are mounted on the vertical plate of the mold base base assembly.

As an optional solution of the embodiment of the present invention, the T-shaped groove with the T-shaped groove guide rail is used to connect the T-shaped bolts on the mold to complete the fixing and initial positioning of the mold.

Based on the same inventive concept, the second aspect of the embodiment of the present invention provides a working method of a die adjustment device for a CNC profile bending machine, including the following steps:

Install the mold base assembly on the main frame, and connect it firmly with the main frame through the keyway and connecting screw holes on the mold base base assembly;

The two groups of mold support plate assemblies are connected with the mold base base assembly through the guide rails;

Connect the guide rail with T-shaped groove to the T-bolt on the mold to complete the fixation and initial positioning of the mold;

When working, the screw assembly is rotated and adjusted, and the mold support plate assembly moves up and down along the vertical guide rails on the mold base 8, thereby driving the mold to move up and down, ensuring that the relative positional relationship between the mold and the clamp of the bending machine is correct, and satisfying the tension and bending requirements. machine work requirements.

The beneficial effects of the present invention are as follows:

1) The mold adjustment device of the numerical control profile bending machine provided by the embodiment of the present invention, wherein the mold support plate assembly and the mold base base assembly are connected by guide rails, and driven by the lifting transmission mechanism, the mold support plate assembly moves smoothly along the vertical direction. ; Realize the rapid installation and adjustment of different parts molds, and the device has a compact structure, is convenient to use, and has a low manufacturing cost.

2) The mold adjustment device for the CNC profile bending machine provided by the embodiment of the present invention, wherein the mold base base assembly is L-shaped, has a large contact area with the main frame, is positioned by keys, has many connecting screw holes, has large bearing capacity, and is safe and reliable .

3) The mold adjustment device of the numerical control profile bending machine provided by the embodiment of the present invention, wherein the mold support plate assembly is provided with a horizontal guide rail with a T-shaped groove, and the mold is fixed and initially positioned using T-shaped bolts, which is convenient for mold installation and replacement. .

4) In the mold adjustment device for a CNC profile bending machine provided by the embodiment of the present invention, a thrust ball bearing is arranged in the screw fixing seat, and the axial force received by the screw is transmitted to the thrust ball bearing, so that the mold position adjustment is no longer laborious.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Figure 1 is a schematic diagram of the mechanical structure of the existing CNC profile bending machine;

Fig. 2 is the structural schematic diagram of the die adjustment device of the numerical control profile bending machine according to the embodiment of the present invention;

3 is a schematic structural diagram of a mold base assembly in an embodiment of the present invention;

4 is a schematic structural diagram of a mold support plate assembly in an embodiment of the present invention;

5 is a schematic structural diagram of an adjusting screw assembly in an embodiment of the present invention;

In the picture: 1-mould; 2-main frame; 3-section to be drawn; 4-chuck; 5-drawing cylinder; 6-slide; 7-rotating arm; 8-mould base assembly; 9-mould Support plate assembly; 10-guide rail; 11-guide rail with T-shaped groove; 12-adjusting screw assembly; 13-connection block; 14-guide plate; 15-clamping block; 16-thrust ball bearing; 17-screw fixing seat ; 18-threaded bushing; 19- oblique reinforcement plate.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

The following detailed descriptions are all exemplary descriptions and are intended to provide further detailed descriptions of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention.

As shown in FIG. 1, the first aspect of the embodiment of the present invention provides a mold adjustment device for a CNC profile bending machine, including a mold base assembly 8 and a mold support plate assembly 9; the mold base assembly 8 is an L-shaped plate , the horizontal plate is used to be installed at a suitable position on the main frame 2 of the bending machine, the first surface of the vertical plate is provided with a guide rail 10 arranged in the vertical direction; the die support plate assembly 9 includes a guide rail 11 with a T-shaped groove and a guide plate 14; the guide plate 14 is used to be installed on the guide rail 10 in a way that can slide up and down along the guide rail 10, and a lifting transmission mechanism is connected with the vertical plate of the mold base base assembly 8; the guide plate 14 is fixedly connected with the guide rail 11 with a T-shaped groove , used to install mold 1.

Through the above arrangement, driven by the lifting transmission mechanism, the mold support plate assembly can be smoothly lifted and lowered along the vertical direction; the rapid installation and adjustment of different parts molds can be realized. The guide rail 11 with T-shaped groove is connected with the T-bolt on the mold 1 to complete the fixation and initial positioning of the mold 1 and realize the rapid installation of the mold.

As shown in FIG. 3 , applied to the specific embodiment of the present invention, the horizontal plate of the mold base assembly 8 is provided with connecting screw holes and key slots for connecting with the main frame 2 , and the main frame is connected to the main frame through the key slots and the connecting screw holes. The rack connection is firm.

Through the above arrangement, the structure of the mold base base assembly is L-shaped, the contact area with the main frame is large, the key is used for positioning, the connection screw holes are many, the bearing capacity is large, and it is safe and reliable.

As shown in FIG. 3 , in a preferred embodiment of the present invention, an oblique reinforcing plate 19 is connected between the horizontal plate and the vertical plate of the formwork base assembly 8 . The stability of the mold base base assembly 8 is further improved.

As an example of the embodiment of the present invention, two oblique reinforcing plates 19 are provided.

Applied to the specific embodiment of the present invention, the lifting transmission mechanism is the adjusting screw assembly 12, the adjusting screw assembly 12 is installed on the vertical plate of the mold base base assembly 8, and the guide plate 14 is installed on the adjusting screw assembly 12 and is connected with the guide rail 10. Slip fit.

As shown in Figures 4 and 5, the adjusting screw assembly 12 includes a screw, a screw fixing seat 17, a clamping block 15 and a thrust ball bearing 16; the screw fixing seat 17 is simultaneously fixed on the top of two adjacent guide rails 10, The lead screw is arranged between two adjacent guide rails 10. The outer ring of the thrust ball bearing 16 is mounted on the lead screw fixing seat 17 and is fixed and clamped by the clamping block 15. The upper part of the lead screw is connected to the inner ring of the thrust ball bearing 16. Fixed connection, the bottom of the lead screw is threadedly connected with a threaded bushing 18; the first surface of the guide plate 14 is fixedly connected with the guide rail 11 with the T-shaped groove, the second surface of the guide plate 14 is provided with a connecting block 13, and the connecting block 13 is provided with Vertical mounting hole, the mounting hole is used to connect the threaded bushing 18.

As an example of the above-mentioned embodiment, the guide rail 10 is a T-shaped guide rail, and the two vertical edges of the second surface of the guide plate 14 extend in the vertical direction and then snap inwardly to form a snap-fit portion, and the snap-fit portion is used for snap-fit installation on the on the T-rail.

As an example of the above embodiment, two adjacent guide rails 10 form a set of guide rail assemblies, two sets of guide rail assemblies are mounted on the vertical plate of the mold base assembly 8, and each set of guide rails 11 with T-shaped grooves corresponds to a set of guide rails components.

Based on the same inventive concept, the second aspect of the embodiment of the present invention provides a working method of the above-mentioned CNC profile bending machine die adjustment device, including the following steps:

The mold base assembly 8 is installed on the main frame 2, and is firmly connected to the main frame 2 through the keyway and connecting screw holes on the mold base base assembly 8;

The two groups of mold support plate assemblies 9 are connected with the mold base base assembly 8 through the guide rails 10;

Connect the guide rail 11 with the T-shaped groove to the T-bolt on the mold 1 to complete the fixation and initial positioning of the mold 1;

Rotate and adjust the screw assembly 12 during operation, and the mold support plate assembly 9 moves up and down along the vertical guide rail 10 on the mold base 8, thereby driving the mold 1 to move up and down, ensuring that the relative positional relationship between the mold and the clamp of the bending machine is correct. , to meet the working requirements of the bending machine.

It is known from the technical common sense that the present invention can be realized by other embodiments without departing from its spirit or essential characteristics. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims (10)

1. A die adjusting device of a numerical control section bar stretch bender is characterized by comprising a die carrier base component (8) and a die supporting plate component (9);

the die carrier base component (8) is an L-shaped plate, the transverse plate is used for being installed on a main frame (2) of the stretch bender, and a guide rail (10) arranged in the vertical direction is arranged on the first surface of the vertical plate;

the mould supporting plate assembly (9) comprises a guide rail (11) with a T-shaped groove and a guide plate (14); the guide plate (14) is arranged on the guide rail (10) in a manner of sliding up and down along the guide rail (10), and a lifting transmission mechanism is connected between the guide plate and a vertical plate of the formwork base assembly (8); the guide plate (14) is fixedly connected with the guide rail (11) with the T-shaped groove, and the guide rail with the T-shaped groove is used for installing the die (1).

2. The die adjusting device of the numerical control profile stretch bender according to claim 1, characterized in that a connecting screw hole for connecting with the main frame (2) is arranged on a transverse plate of the die carrier base assembly (8).

3. The die adjusting device of the numerical control profile stretch bender according to claim 1, characterized in that a transverse plate of the die carrier base assembly (8) is provided with a key slot for connecting with the main frame (2).

4. The die adjusting device of the numerical control profile stretch bender according to claim 1, characterized in that an oblique reinforcing plate (19) is connected between the transverse plate and the vertical plate of the die carrier base assembly (8).

5. The die adjustment device of a numerically controlled profile stretch bender according to claim 1, wherein the lifting transmission mechanism is an adjusting screw assembly (12), the adjusting screw assembly (12) is mounted on a riser of the die carrier base assembly (8), and the guide plate (14) is mounted on the adjusting screw assembly (12) and is in sliding fit with the guide rail (10).

6. The die adjustment device of the numerical control profile stretch bender according to claim 5, wherein the adjusting screw assembly (12) comprises a screw, a screw fixing seat (17), a clamping block (15) and a thrust ball bearing (16); the screw fixing seat (17) is simultaneously fixed at the tops of two adjacent guide rails (10), the screw is arranged between the two adjacent guide rails (10), an outer ring of the thrust ball bearing (16) is mounted on the screw fixing seat (17) and is fixedly clamped through a clamping block (15), the upper part of the screw is fixedly connected with an inner ring of the thrust ball bearing (16), and the bottom of the screw is in threaded connection with a threaded bushing (18);

the first surface of the guide plate (14) is fixedly connected with the guide rail (11) with the T-shaped groove, a connecting block (13) is arranged on the second surface of the guide plate (14), a vertical mounting hole is formed in the connecting block (13), and the mounting hole is used for being connected with the threaded bushing (18).

7. The die adjusting device of the numerical control profile stretch bender according to claim 6, wherein the guide rail (10) is a T-shaped guide rail, and two vertical edges of the second surface of the guide plate (14) extend in a vertical direction and then are buckled inwards to form a buckling part, and the buckling part is used for being buckled and installed on the T-shaped guide rail.

8. The die adjustment device of a numerical control profile stretch bender according to claim 6, characterized in that two adjacent guide rails (10) form a set of guide rail assemblies, and two sets of guide rail assemblies are mounted on the risers of the die carrier base assembly (8).

9. The die adjusting device of the numerical control profile stretch bender according to claim 1, wherein the T-shaped groove of the guide rail (11) with the T-shaped groove is used for connecting a T-shaped bolt on the die (1) to complete the fixing and initial positioning of the die (1).

10. The working method of the die adjusting device of the numerical control profile stretch bender according to any one of claims 1 to 9, characterized by comprising the following steps:

the die set base assembly (8) is arranged on the main frame (2) and is firmly connected with the main frame (2) through a key groove and a connecting screw hole on the die set base assembly (8);

two groups of mould supporting plate assemblies (9) are matched and connected with a mould frame base assembly (8) through guide rails (10);

connecting the guide rail (11) with the T-shaped groove with a T-shaped bolt on the die (1) to complete the fixation and initial positioning of the die (1);

during operation, the screw rod assembly (12) is adjusted in a rotating mode, the die supporting plate assembly (9) moves up and down along the vertical guide rail (10) on the die carrier base 8, so that the die (1) is driven to move up and down, the relative position relation between the die and a clamping head of a stretch bender is guaranteed to be correct, and the working requirement of the stretch bender is met.

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