Vacuum adsorption device of numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a numerical control machine tool vacuum adsorption device which comprises a machine tool body frame, a vacuum cavity is formed in the upper end of the machine tool body frame, side supports are arranged on the two sides of the vacuum cavity, a transverse frame is arranged at the upper ends of the side supports, a vertical frame is arranged at the middle end of the transverse frame, and a porous deck plate is arranged on the surface of the upper end of the vacuum cavity. A plurality of air holes are evenly distributed in the porous countertop, an air pipe connector is arranged below the vacuum cavity, and an adsorption assembly is arranged below the vacuum cavity through the air pipe connector. According to the vacuum adsorption device of the numerical control machine tool, air in the vacuum cavity is sucked away by the centrifugal blower through the air pipe, then negative pressure is formed inside and outside the vacuum cavity, and negative pressure airflow can act on a plate type material on the surface of the upper end of the porous deck plate without loss under the cooperation of the air holes evenly distributed in the porous deck plate; the plate-type material on the surface of the upper end of the porous deck plate is effectively adsorbed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a vacuum adsorption device for numerical control machine tools. Background Art

[0002] The vacuum adsorption method currently used in CNC machine tools uses a vacuum pump as the vacuum source. A bellows or steel tube (hereinafter referred to as the air pipe) connects the vacuum pump inlet to the machine tool. The machine tool is constructed from an ABS or PVC sheet material with milled air guide grooves and an air pipe connection port underneath. The surface is covered with density fiberboard. When the vacuum pump is turned on, the negative pressure generated is transferred through the air pipe to the density fiberboard on the surface. Since the density fiberboard is made of fine wood chips and is riddled with tiny pores, the negative pressure generated by the vacuum pump is applied through the density fiberboard to the material placed on the surface, adsorbing the material onto the surface for processing.

[0003] The existing CNC vibrating knife pneumatic knife cutting machine uses an aluminum plate as the table top with 2-3mm air holes. An aluminum honeycomb panel is installed on the bottom edge of the table top. The negative pressure generated by the vacuum pump is applied to the material placed on the table top through the air duct, thereby adsorbing the material on the table top for processing.

[0004] However, the above technologies have many disadvantages:

[0005] 1. The power of the vacuum pump is usually 5.5-11KW, which has huge energy consumption. If a water circulation vacuum pump is used, a large amount of water will also be consumed;

[0006] 2. The air permeability of density board is not very high, so a lot of negative pressure of vacuum pump is consumed. The vacuum adsorption effect is often not ideal, especially when the flatness of the material itself is not high. It is difficult to completely adsorb the material on the table, which can easily cause damage to the workpiece during processing.

[0007] 3. Aluminum plate countertops and aluminum honeycomb panels are expensive, and because the aluminum plate countertops have small pores and the complex structure of the honeycomb panels affects gas flow, the adsorption effect is also very unsatisfactory. Therefore, it is necessary to provide a CNC machine tool vacuum adsorption device to solve the above problems. Utility Model Content

[0008] In view of the deficiencies in the prior art, the present invention provides a vacuum adsorption device for a CNC machine tool, which solves the problems mentioned in the above background.

[0009] The utility model provides the following technical solution: a vacuum adsorption device for a CNC machine tool, comprising a bed frame, a vacuum cavity provided on the upper end surface of the bed frame, side brackets provided on both sides of the vacuum cavity, a horizontal frame provided on the upper end of the side bracket, a vertical frame provided at the middle end of the horizontal frame, an actuator of the machine tool provided on the vertical frame, a porous table panel provided on the upper end surface of the vacuum cavity, a plurality of air holes evenly distributed on the porous table panel, an air pipe interface provided below the vacuum cavity, and an adsorption component provided below the vacuum cavity through the air pipe interface;

[0010] The adsorption component includes a centrifugal fan, and the centrifugal fan is placed on one side of the bed frame.

[0011] Preferably, the adsorption assembly further includes a main air pipe, a three-way joint and an air distribution pipe. The three-way joint is arranged on the bed frame, and one end of the main air pipe is connected to the centrifugal fan.

[0012] Preferably, the main air pipe is connected to a three-way joint at one end away from the centrifugal fan, two branch air pipes are provided, and two interfaces of the three-way joint away from the main air pipe are respectively connected to the two branch air pipes.

[0013] Preferably, the bottom surface of the vacuum chamber is provided with an air outlet, there are two air outlets, and the air pipe interface is provided at the lower end of the air outlet, and the two air distribution pipes are connected to the two air outlets through the air pipe interface at one end away from the three-way joint.

[0014] Preferably, a plurality of supporting square tubes evenly distributed horizontally and vertically are provided inside the vacuum chamber, and the supporting square tubes are used to support the porous table top.

[0015] Preferably, the porous table top is an ABS porous plate, and the internal space of the vacuum cavity forms a vacuum cavity with the cooperation of the porous table top.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The vacuum adsorption device of the CNC machine tool is provided with an adsorption component. The air inside the vacuum chamber can enter the air distribution pipe through the air outlet, and then the air flow inside the air distribution pipe is merged into the main air pipe through the three-way joint and finally discharged through the centrifugal fan. The air in the vacuum chamber is sucked away through the air outlet, and then negative pressure is formed inside and outside the vacuum chamber. With the cooperation of the air holes evenly distributed on the porous table panel, the negative pressure air flow can act on the plate material on the upper surface of the porous table panel without loss, and effectively adsorb the plate material on the upper surface of the porous table panel.

[0018] 2. The vacuum adsorption device of the CNC machine tool can effectively support the porous table panel by providing a supporting square tube, preventing the center of the porous table panel from sinking. By providing a centrifugal fan, the power is greatly reduced compared to the vacuum pump, which reduces energy consumption while also reducing the user's production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the vacuum adsorption device for CNC machine tools of the utility model;

[0020] Figure 2 This is a top view of the vacuum chamber and the porous table panel of the utility model;

[0021] Figure 3 This is a schematic diagram of the partial structure of the adsorption component of the utility model;

[0022] Figure 4 For this utility model Figure 1 A magnified schematic diagram of the structure at center A.

[0023] In the figure: 1. Bed frame; 2. Vacuum chamber; 201. Support square tube; 202. Air outlet; 3. Side bracket; 4. Horizontal frame; 5. Vertical frame; 6. Actuator; 7. Multi-porous table panel; 8. Adsorption assembly; 801. Centrifugal fan; 802. Main air pipe; 803. T-joint; 804. Air distribution pipe; 9. Vacuum chamber. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 A vacuum adsorption device for a CNC machine tool comprises a bed frame 1, a vacuum cavity 2 is provided on the upper end surface of the bed frame 1, side brackets 3 are provided on both sides of the vacuum cavity 2, a horizontal frame 4 is provided on the upper end of the side bracket 3, a vertical frame 5 is provided at the middle end of the horizontal frame 4, an actuator 6 of the machine tool is provided on the vertical frame 5, a porous table panel 7 is provided on the upper end surface of the vacuum cavity 2, a plurality of air holes are evenly distributed on the porous table panel 7, an air pipe interface is provided below the vacuum cavity 2, and an adsorption component 8 is provided below the vacuum cavity 2 through the air pipe interface;

[0026] The adsorption assembly 8 includes a centrifugal fan 801 , which is placed on one side of the bed frame 1 .

[0027] Among them; the adsorption component 8 also includes a main air pipe 802, a three-way joint 803 and a branch air pipe 804. The three-way joint 803 is arranged on the bed frame 1. One end of the main air pipe 802 is connected to the centrifugal fan 801, and the end of the main air pipe 802 away from the centrifugal fan 801 is connected to the three-way joint 803. There are two branch air pipes 804. The two interfaces of the three-way joint 803 on the side away from the main air pipe 802 are respectively connected to the two branch air pipes 804. By providing the three-way joint 803, the main air pipe 802 and the branch air pipe 804 are effectively connected, which facilitates the effective circulation of gas.

[0028] Among them; an air outlet hole 202 is opened on the bottom surface of the vacuum chamber 2, and there are two air outlet holes 202, and the air pipe interface is set at the lower end of the air outlet hole 202, and the two air distribution pipes 804 are connected to the two air outlet holes 202 through the air pipe interface at one end away from the three-way joint 803. By opening the air outlet hole 202, the air inside the vacuum chamber 9 can enter the air distribution pipe 804 through the air outlet hole 202, and then the air flow inside the air distribution pipe 804 merges through the three-way joint 803 and enters the main air pipe 802, and is finally discharged through the centrifugal fan 801.

[0029] Among them; a number of horizontally and vertically evenly distributed supporting square tubes 201 are provided inside the vacuum chamber 2, and the supporting square tubes 201 are used to support the porous table panel 7. By providing the supporting square tubes 201, the porous table panel 7 can be effectively supported to prevent the center of the porous table panel 7 from sinking.

[0030] Among them; the porous table panel 7 is an ABS porous plate, and the internal space of the vacuum cavity 2 forms a vacuum cavity 9 with the cooperation of the porous table panel 7. Through the operation of the adsorption component 8, the air in the vacuum cavity 9 is sucked away through the air outlet 202, and then negative pressure is formed inside and outside the vacuum cavity 9. The porous table panel 7 is an ABS porous plate or a PVC porous plate. With the cooperation of the air holes evenly distributed on the porous table panel 7, the negative pressure airflow can act on the plate material on the upper surface of the porous table panel 7 without loss, and effectively adsorb the plate material on the upper surface of the porous table panel 7.

[0031] Working principle: the air inside the vacuum chamber 9 can enter the air distribution pipe 804 through the air outlet 202, and then the air flow inside the air distribution pipe 804 merges through the three-way joint 803 and enters the main air pipe 802, and is finally discharged through the centrifugal fan 801. The air in the vacuum chamber 9 is sucked away through the air outlet 202, and then negative pressure is formed inside and outside the vacuum chamber 9. With the cooperation of the air holes evenly distributed on the porous table panel 7, the negative pressure airflow can act on the plate material on the upper surface of the porous table panel 7 without loss, and effectively adsorb the plate material on the upper surface of the porous table panel 7.

[0032] Furthermore, by providing a supporting square tube 201, the porous table panel 7 can be effectively supported to prevent the center of the porous table panel 7 from sinking. By providing a centrifugal fan 801, the power is greatly reduced compared to a vacuum pump, which reduces energy consumption while also reducing the user's production cost.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum adsorption device for a CNC machine tool, comprising a bed frame (1), characterized in that: The upper surface of the bed frame (1) is provided with a vacuum cavity (2), side brackets (3) are provided on both sides of the vacuum cavity (2), a horizontal frame (4) is provided on the upper end of the side bracket (3), a vertical frame (5) is provided at the middle end of the horizontal frame (4), and an actuator (6) of the machine tool is provided on the vertical frame (5), the upper surface of the vacuum cavity (2) is provided with a porous table panel (7), a plurality of air holes are evenly distributed on the porous table panel (7), an air pipe interface is provided below the vacuum cavity (2), and an adsorption component (8) is provided below the vacuum cavity (2) through the air pipe interface; The adsorption assembly (8) includes a centrifugal fan (801), and the centrifugal fan (801) is placed on one side of the bed frame (1); The adsorption assembly (8) further comprises a main air pipe (802), a three-way joint (803) and an air distribution pipe (804); the three-way joint (803) is arranged on the bed frame (1); one end of the main air pipe (802) is connected to the centrifugal fan (801); The main air pipe (802) is connected to a three-way joint (803) at one end away from the centrifugal fan (801), and two branch air pipes (804) are provided. The two interfaces of the three-way joint (803) on the side away from the main air pipe (802) are respectively connected to the two branch air pipes (804); The bottom surface of the vacuum chamber (2) is provided with an air outlet (202), two of the air outlets (202) are provided, and an air pipe interface is provided at the lower end of the air outlet (202), and one end of the two air distribution pipes (804) away from the three-way connector (803) is connected to the two air outlets (202) through the air pipe interface respectively; A plurality of supporting square tubes (201) evenly distributed horizontally and vertically are provided inside the vacuum cavity (2), and the supporting square tubes (201) are used to support the porous table panel (7).

2. A vacuum adsorption device for CNC machine tools according to claim 1, characterized in that: The porous table panel (7) is an ABS porous plate, and the internal space of the vacuum cavity (2) forms a vacuum cavity (9) in cooperation with the porous table panel (7).

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