Hydraulic bending machine structure for machining decoration strip of metal face frame of liquid crystal display television

Abstract

The utility model relates to the field of television surface frame processing equipment, in particular to a hydraulic bending machine structure for processing a decorative strip of a metal surface frame of a liquid crystal display television, which optimizes the arrangement mode of a hydraulic bending machine so as to obtain a better bending effect of the decorative strip. Hydraulic bending machines are arranged on the table top, the number of the hydraulic bending machines is two, hydraulic rods of the hydraulic bending machines extend in the horizontal direction, and the hydraulic rods are oppositely and coaxially arranged; comprising a fixing seat, and the hydraulic bending machine is fixedly arranged on a table top through the fixing seat; a bending table plate used for placing a decoration strip is fixedly arranged on the table board, and the bending table plate is arranged between hydraulic rods of the hydraulic bending machine. The bending device is particularly suitable for the bending process of the decoration strip of the metal face frame of the liquid crystal display television.

Description

Technical Field

[0001] The utility model relates to the field of television face frame processing equipment, in particular to a hydraulic bending machine structure for processing decorative strips of a metal face frame of a liquid crystal television. Background Art

[0002] The decorative strips used in the metal face frames of LCD TVs are typically bent from aluminum alloy. Due to the properties of aluminum alloy, using a punch press to bend the decorative strips does not achieve the ideal surface smoothness required, making it difficult to meet the high surface smoothness requirements of this product. Specifically, the 90-degree bend arc must be rounded and have a high surface finish. Manual bending or rapid bending using a stamping die results in insufficient preparation for plastic deformation, an incomplete bend arc, and substandard surface finish. To meet production requirements, the bending speed must be reduced to ensure sufficient plastic deformation of the part and meet the product's process requirements.

[0003] The existing hydraulic slow bending and forming equipment has defects in the layout of the hydraulic bending machine, especially the design defects of the angle at which the hydraulic rod of the hydraulic bending machine applies the bending force. As a result, it is difficult to ensure the process parameter requirements such as the curvature and surface smoothness of the bending part of the decorative strip during the bending process, which ultimately leads to a high product defective rate and low production efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hydraulic bending machine structure for processing LCD TV metal face frame decorative strips, which optimizes the arrangement of the hydraulic bending machine and thereby obtains a better bending effect of the decorative strips.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a hydraulic bending machine structure for processing the decorative strips of the metal face frame of the LCD TV, including a base, the top surface of the base is provided with a table in the horizontal direction, and a hydraulic bending machine is provided on the table. There are two hydraulic bending machines, and the hydraulic rods of the hydraulic bending machines are extended in the horizontal direction, and the hydraulic rods are arranged coaxially in opposite directions; it includes a fixed seat, and the hydraulic bending machine is fixedly provided on the table through the fixed seat; a bending table for placing the decorative strips is fixedly provided on the table, and the bending table is arranged between the hydraulic rods of the hydraulic bending machine.

[0006] Furthermore, the fixed seat includes a connecting seat fixedly connected to the bending machine base of the hydraulic bending machine, and reinforcing ribs arranged on both sides of the connecting seat. The connecting seat and the reinforcing ribs form a U shape, and the connecting seat and the reinforcing ribs are arranged perpendicular to each other between the table top. The hydraulic rod of the hydraulic bending machine passes through the through hole on the connecting seat.

[0007] Furthermore, the hydraulic rod and the reinforcing ribs are respectively arranged on both sides of the connecting seat.

[0008] Furthermore, the bending table is rectangular and is set on the table top by limiting screws and fixing screws. The limiting screws are set along the length direction of the bending table, and the fixing screws are set along the width direction of the bending table.

[0009] Furthermore, it includes a PLC control system, which is electrically connected to the hydraulic bending machine.

[0010] The beneficial effects of the present utility model are as follows: 1. The hydraulic rods of the hydraulic bending machine are arranged oppositely and coaxially, which can ensure that the forces on both sides of the decorative strip are uniform and controllable during the bending process of the decorative strip. 2. When the decorative strip is subjected to external force and then bent and deformed, the deformed decorative strip will cause a change in the direction of the external force, and thus generate complex external force control requirements. However, since the hydraulic rods are arranged oppositely and coaxially, the forces on both sides of the decorative strip are in a straight line. In addition to the forces on both sides, it is only necessary to apply an external force to guide the bending and deformation of the decorative strip, so that the decorative strip can be bent according to the required deformation trajectory, which greatly improves the production efficiency of the bending and reduces the defective rate. 3. During the bending process, since it is a hydraulic slow bending process, it is necessary to ensure the stability of the position of the hydraulic bending machine during the entire bending process. The fixed seat strengthens the stable connection between the hydraulic bending machine and the table top, thereby ensuring the stability of the bending force. The present utility model is particularly suitable for the bending process of the metal face frame decorative strips of LCD TVs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of an embodiment of the present utility model.

[0012] Marked in the figure are: base 1, table top 11, bending table 2, table positioning hole 21, limit screw 22, fixing screw 23, hydraulic bending machine 3, hydraulic rod 31, connecting seat 32, pressing head 33, reinforcing rib 34, bending machine base 35. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1The figure shows an embodiment of a hydraulic bending machine structure for processing the metal face frame decorative strips of LCD TVs. The table top 11 of the base 1 is the basic platform for setting bending-related equipment. The table top 11 is arranged in the horizontal direction and is rectangular. Hydraulic bending machines 3 are respectively provided at both ends of the table top 11 in the length direction. The two hydraulic bending machines 3 are arranged opposite to each other. The hydraulic rods 31 of the hydraulic bending machines 3 are arranged opposite to each other, and the hydraulic rods 31 of the hydraulic bending machines 3 are arranged coaxially. A pressing head 33 is provided at one end of the hydraulic rod 31, and the pressing head 33 contacts the metal face frame decorative strips of the LCD TV to be bent. The other end of the hydraulic rod 31 is connected to the hydraulic cylinder of the hydraulic bending machine 3, and the movement of the hydraulic rod 31 is driven by the slow extension and retraction of the hydraulic cylinder. This solution takes advantage of the low speed and stable force of the hydraulic bending machine 3. The low speed allows sufficient time for the bending deformation of the metal face frame decorative strip of the aluminum alloy material, that is, completes sufficient plastic deformation, allowing the material in the bending area to be deformed evenly and smoothly, ensuring the quality of the bending. Secondly, the stable force can make the entire bending process controllable, preventing the metal face frame decorative strip from being broken due to unstable force during the bending process. The entire drive of the hydraulic bending machine 3 is controlled by a PLC control system to ensure that the bending force applied during the bending process is accurate and controllable.

[0015] When the hydraulic bender 3 applies an external bending force to the decorative strip, it will be subjected to a large reaction force from the decorative strip. Therefore, in order to prevent the reaction force from causing the hydraulic bender 3 to shift, a fixed seat composed of a connecting seat 32 and reinforcing ribs 34 arranged on both sides of the connecting seat 32 can be added to strengthen the support for the hydraulic bender 3. Among them, the bender base 35 of the hydraulic bender 3 is fixedly connected to the connecting seat 32, and the hydraulic rod 31 of the hydraulic bender 3 passes through the through hole on the connecting seat 32. The connecting seat 32 and the reinforcing ribs 34 on both sides form a U-shape, and the connecting seat 32 and the reinforcing ribs 34 are arranged perpendicular to each other with the table top 11, so that the connection stability between the connecting seat 32 and the reinforcing ribs 34 on both sides and the table top 11 can be expanded, preventing the hydraulic bender 3 from sliding along the extension direction of the hydraulic rod 31. Furthermore, it is preferred that the hydraulic rod 31 and the reinforcing ribs 34 are respectively arranged on both sides of the connecting seat 32, such as Figure 1 As shown, the hydraulic rod 31 is arranged on the right side of the connecting seat 32, and the reinforcing rib 34 is arranged on the left side of the connecting seat 32. This arrangement can further prevent the hydraulic bending machine 3 from flipping over and tilting upward in extreme cases, and its supporting effect is better.

[0016] The bending table 2 is rectangular and is set on the table top 11 by limiting screws 22 and fixing screws 23. The limiting screws 22 are set along the length direction of the bending table top 2, and the fixing screws 23 are set along the width direction of the bending table top 2. The limiting screws 22 and the fixing screws 23 jointly limit the moving direction of the bending table top 2 to prevent the bending table top 2 from sliding along the horizontal plane of the table top 11 during the bending process.

[0017] During actual bending, the hydraulic pressure of the hydraulic bending machine 3 is used as the power. First, the oil pump of the hydraulic bending machine 3 is started, and all the cylinders of the hydraulic bending machine 3 retreat to their positions (origin reset). Then, the "manual-automatic switch" can be turned to "automatic state", and the decorative strip is installed on the fixed die of the bending table 2. After that, the pressing cylinder is advanced to its position, and then the hydraulic rods 31 on both sides are bent. After bending is in place, all the cylinders retreat at the same time, completing a working cycle.

Claims

1. A hydraulic bending machine structure for processing a metal face frame decorative strip of a liquid crystal television, comprising a base (1), a top surface of the base (1) being provided with a table (11) in a horizontal direction, and a hydraulic bending machine (3) being provided on the table (11), characterized in that: There are two hydraulic bending machines (3), and the hydraulic rods (31) of the hydraulic bending machines (3) are extended in the horizontal direction, and the hydraulic rods (31) are arranged coaxially in opposite directions; The hydraulic bending machine (3) is fixedly arranged on a table (11) via a fixing seat; a bending table (2) for placing decorative strips is fixedly arranged on the table (11); the bending table (2) is arranged between hydraulic rods (31) of the hydraulic bending machine (3).

2. The hydraulic bending machine structure for processing the metal face frame decorative strips of LCD TVs according to claim 1, characterized in that: The fixing seat comprises a connecting seat (32) fixedly connected to a bending machine base (35) of a hydraulic bending machine (3), and reinforcing ribs (34) arranged on both sides of the connecting seat (32), wherein the connecting seat (32) and the reinforcing ribs (34) form a U-shape, and the connecting seat (32) and the reinforcing ribs (34) are arranged perpendicular to each other with respect to the table (11), and the hydraulic rod (31) of the hydraulic bending machine (3) passes through a through hole on the connecting seat (32).

3. The hydraulic bending machine structure for processing the metal face frame decorative strips of LCD TVs according to claim 2, characterized in that: The hydraulic rod (31) and the reinforcing ribs (34) are respectively arranged on both sides of the connecting seat (32).

4. The hydraulic bending machine structure for processing the metal face frame decorative strips of LCD TVs according to any one of claims 1 to 3, characterized in that: The bending table (2) is rectangular and is arranged on the table top (11) through a limiting screw (22) and a fixing screw (23). The limiting screw (22) is arranged along the length direction of the bending table (2), and the fixing screw (23) is arranged along the width direction of the bending table (2).

5. The hydraulic bending machine structure for processing the metal face frame decorative strips of LCD TVs according to any one of claims 1 to 3, characterized in that: It comprises a PLC control system, and the PLC control system is electrically connected to the hydraulic bending machine (3).

Images