CN204565967U - A kind of vacuum adsorption type electric permanent-magnet suction disc - Google Patents

Abstract

The utility model relates to a fixture in the technical field of mechanical processing, in particular to a vacuum adsorption type electro-permanent magnetic sucker, which includes a disc body and a disc surface, and is characterized in that the disc body is equipped with magnetic poles, high coercivity magnetic strips, excitation The sucker unit composed of coil components and low coercive force magnetic blocks, magnetic poles, high coercive force magnetic strips, low coercive force magnetic blocks, excitation coil components and the disk body are filled with sealant, and the disk body is provided with a suction pipe. There is a suction hole connected to the suction pipe on the surface of the disk. One end of the suction pipe is closed or connected to the suction hole, and the other end passes through the disk body to connect with the vacuum source. There is a control valve on the suction pipe outside the disk. Valve, the utility model is provided with at least two suction pipes, the disk body is provided with areas equal to the number of suction pipes, and each suction pipe is respectively connected with the suction holes of the corresponding area on the disk body, with clamping accuracy High, convenient operation, strong reliability, stable performance and other advantages.

Description

A vacuum adsorption type electric permanent magnetic chuck

technical field

The utility model relates to a fixture in the technical field of mechanical processing, in particular to a vacuum adsorption type electric permanent magnet sucker with high clamping precision, good clamping effect, convenient operation, strong reliability and stable performance.

Background technique

The electric permanent magnetic chuck refers to relying on the permanent magnetic steel to generate suction, and using the excitation coil to control the polarity of the magnetic pole of the low coercivity magnetic material. The electric permanent magnetic chuck usually includes a disc body, which is equipped with magnetic poles, high coercive A sucker unit composed of magnetic strips, coil components, and low-coercivity magnetic blocks, and a sealant is filled between the magnetic poles, high-coercive force magnetic strips, low-coercive force magnetic blocks, excitation coil components, and the disc body. Because of its advantages such as no loss of magnetism when power is off, and constant and strong magnetic force, it has been widely used in metal cutting, quick mold change, magnetic lifting, welding clamping and other fields.

However, when this kind of electric permanent magnetic chuck processes some non-metallic materials and non-ferromagnetic material workpieces, it must be provided with magnetic auxiliary fixtures on the workpiece, and the penetration of the magnetic force is used to realize the clamping of the workpiece. There is a gap between the magnetic chuck, the processed workpiece and the auxiliary fixture. When processing the workpiece, it is easy to increase the gap, cause the magnetic force to attenuate, and the clamping force to decrease, resulting in displacement of the processed workpiece, high scrap rate and reduced processing accuracy. This largely limits the application of electro-permanent magnetic chucks.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a vacuum adsorption type electro-permanent magnetic chuck with high clamping precision, good clamping effect, convenient operation, strong reliability and stable performance.

In order to achieve the above object, the utility model provides the following technical solutions:

A vacuum adsorption type electric permanent magnet chuck, comprising a disk body and a disk surface, is characterized in that the disk body is provided with a suction cup unit composed of a magnetic pole, a high coercive force magnetic strip, an excitation coil assembly, and a low coercive force magnetic block, the magnetic pole, High coercive force magnetic strip, low coercive force magnetic block, excitation coil assembly and disk body are filled with sealant, there is a suction pipe in the disk body, and a suction hole connected with the suction pipe on the disk surface, the suction One end of the trachea is closed or communicated with the suction hole, and the other end passes through the disc body to connect with the vacuum source, and the suction tube outside the disc body is provided with a control valve.

The utility model is provided with at least two suction pipes, and the disk body is provided with areas equal to the number of suction pipes, and each suction pipe is respectively connected with the suction holes of the corresponding area on the disk body. The valve controls the suction hole in the corresponding area, which can precisely control the suction range and increase the suction force on the workpiece.

The utility model is provided with a control system. The control system includes a control valve, an input keyboard, an MCU and a liquid crystal display. The input keyboard is connected to the MCU through an input circuit, and the MCU is connected to the control valve and the liquid crystal display through an output circuit. The user can select the state of the control switch through the input keyboard according to the size and position of the workpiece to be processed, and then determine the vacuum holding range. The input keyboard transmits the data to the MCU through the input circuit, and the MCU sends a signal to the control valve through the output circuit. The status of the trachea control valve can be displayed on a liquid crystal display for easy observation.

When processing some non-metallic materials and non-ferromagnetic material workpieces, the workpiece is placed on the electro-permanent magnetic chuck, and the magnetic auxiliary fixture made of ferromagnetic material is installed above the workpiece, and each suction pipe is selected through the input keyboard. After controlling the switching state of the valve, turn on the vacuum pump source and magnetize the electro-permanent magnetic chuck, effectively combining the magnetic disk and vacuum adsorption, which not only utilizes the penetrability of the magnetic force, but also utilizes the vacuum negative pressure, which increases the impact on the processed The holding force of the workpiece broadens the scope of application of the electro-permanent magnetic chuck, especially when processing workpieces that require a large holding force, it will have a good effect, with high clamping precision, good clamping effect, convenient and reliable operation Strong, stable performance and other advantages.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

A vacuum adsorption type electric permanent magnet sucker, including a disc body and a disc surface, the disc body can be set as square, rectangular or circular as required, and is characterized in that the disc body is provided with magnetic poles 3, high coercive force magnetic strips 4, excitation A sucker unit composed of a coil assembly 5 and a low coercive force magnetic block 6, a magnetic pole 3, a high coercive force magnetic strip 4, a low coercive force magnetic block 6, an excitation coil assembly 5 and the disk body are filled with sealant, and the disk body There is an air suction pipe 2, and an air suction hole 1 connected with the air suction pipe 2 is provided on the disk surface. The air suction hole 1 can be set according to the needs of workpiece processing. One end of the trachea 2 is closed or communicated with the suction hole 1, and the other end passes through the disc body and is connected with a vacuum source. The suction tube 2 outside the disc body is provided with a control valve. The utility model is provided with at least two suction pipes 2, and the disk body is provided with areas equal to the number of suction pipes. The control valve controls the suction hole in the corresponding area, which can precisely control the suction range and increase the suction force on the workpiece. The utility model is provided with a control system. The control system includes a control valve, an input keyboard, an MCU and a liquid crystal display. The input keyboard is connected to the MCU through an input circuit, and the MCU is connected to the control valve and the liquid crystal display through an output circuit. The user can select the state of the control switch through the input keyboard according to the size and position of the workpiece to be processed, and then determine the vacuum holding range. The input keyboard transmits the data to the MCU through the input circuit, and the MCU sends a signal to the control valve through the output circuit. The status of the trachea control valve can be displayed on a liquid crystal display for easy observation.

When processing some non-metallic materials and non-ferromagnetic material workpieces, the workpiece is placed on the electro-permanent magnetic chuck, and the magnetic auxiliary fixture made of ferromagnetic material is installed above the workpiece, and each suction pipe is selected through the input keyboard. After controlling the switching state of the valve, turn on the vacuum pump source and magnetize the electro-permanent magnetic chuck, effectively combining the magnetic disk and vacuum adsorption, which not only utilizes the penetrability of the magnetic force, but also utilizes the vacuum negative pressure, which increases the impact on the processed The holding force of the workpiece broadens the scope of application of the electro-permanent magnetic chuck, especially when processing workpieces that require a large holding force, it will have a good effect, with high clamping precision, good clamping effect, convenient and reliable operation Strong, stable performance and other advantages.

Claims (3)

1. a vacuum adsorption type electric permanent-magnet suction disc, comprise disk body and card, it is characterized in that in disk body, being provided with the sucker unit be made up of magnetic pole, high-coercive force magnetic stripe, field coil assembly, low-coercivity magnetic patch, magnetic pole, high-coercive force magnetic stripe, low-coercivity magnetic patch, between field coil assembly and disk body, be filled with fluid sealant, air intake duct is provided with in disk body, card is provided with the suction hole be connected with air intake duct, air intake duct one end is connected with suction hole, the other end is connected with vacuum source through disk body, and the air intake duct outside disk body is provided with control valve.

2. a kind of vacuum adsorption type electric permanent-magnet suction disc according to claim 1, it is characterized in that at least being provided with two air intake ducts, disk body is provided with the region equal with air intake duct quantity, and each air intake duct is connected with the suction hole of corresponding region on disk body respectively.

3. a kind of vacuum adsorption type electric permanent-magnet suction disc according to claim 1, it is characterized in that being provided with control system, control system comprises control valve, input keyboard, MCU and liquid crystal display, input keyboard is connected with MCU through input circuit, and MCU is connected with liquid crystal display with gauge tap respectively through output circuit.