CN221952559U - A fixture system and workpiece processing equipment - Google Patents

Abstract

The utility model provides a fixture system and workpiece processing equipment, which belong to the field of processing technology. The fixture system is used to clamp the workpiece, and includes a vacuum pumping device, a fixture assembly and a controller, wherein the fixture assembly includes a fixture and a branch pipe, and the fixture is a hollow structure, one end of which is provided with a suction port for adsorbing the workpiece, and the other end is connected to the main pipe on the vacuum pumping device through the branch pipe. A pressure relief valve is provided on the branch pipe, which is used to adjust the negative pressure value in the branch pipe so as to remove the workpiece from the suction port. The controller is used to control the operation of the vacuum pumping device and the pressure relief valve so as to realize automated management. The fixture system, workpiece processing equipment and method are adopted, and the disassembly and assembly are relatively convenient, saving time and effort; and the work efficiency can be significantly improved.

Description

A fixture system and workpiece processing equipment

Technical Field

The utility model relates to the field of workpiece processing, in particular to a clamp system and workpiece processing equipment.

Background Art

A fixture is a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position to be processed or tested. Some fixtures use a mechanical clamping structure to fix the workpiece. For smaller workpieces, if a traditional mechanical clamping structure is used, it may block the workpiece's processing area, affecting the processing; and it is time-consuming to assemble and disassemble. In addition, for workpieces with lower strength, it is easy to deform if it is fixed by clamping.

Utility Model Content

The utility model aims to provide a clamp system which can fix a workpiece by adsorption.

Another object of the utility model is to provide a workpiece processing device, which adopts the above-mentioned clamping system.

The utility model is achieved in this way:

A clamping system for clamping a workpiece, comprising:

A vacuum pumping device, the vacuum pumping device comprising a main pipe;

A fixture assembly, the fixture assembly comprising a fixture and a branch pipe; the fixture is provided with a suction port, and is connected to the main pipe through the branch pipe, and the suction port is used to suction the workpiece;

The branch pipe is provided with a pressure relief valve, which is used to adjust the negative pressure value in the branch pipe, and the pressure relief valve is a solenoid valve;

A controller is electrically connected to the vacuum pumping device and the pressure relief valve, and the controller can control the negative pressure value of the vacuum pumping device and can control the opening of the pressure relief valve.

Furthermore, the clamp system comprises a plurality of the clamp assemblies, each of which is connected to the main pipe via a corresponding branch pipe;

Each of the branch pipes is provided with a branch valve, and the branch valve is used to control the on-off of the branch pipe; the main pipe is provided with a main valve; the branch valve and the main valve are both solenoid valves; the controller is electrically connected to the main valve and the branch valve.

Furthermore, a pressure relief pipe is provided on the branch pipe, the pressure relief pipe and the branch pipe form a three-way structure, and the pressure relief valve is provided on the pressure relief pipe.

Furthermore, the controller is a PLC or a single chip microcomputer.

Furthermore, pressure sensors are provided on the main pipe and the branch pipe, and the pressure sensors are electrically connected to the controller; the controller can control the operation of the vacuum pump, the corresponding branch valve and the corresponding pressure relief valve according to the value of the pressure sensor.

A workpiece processing device comprises a processing device and a clamp system, wherein the controller is electrically connected to the processing device and is used to control the operation of the cutting device.

Furthermore, the processing device is a laser cutter.

The beneficial effects of the utility model are:

When the above-mentioned fixture system and workpiece processing equipment provided by the utility model are used, the workpiece to be processed (such as diamond) is placed on the suction port of the fixture, and after the vacuum device is started, the workpiece is adsorbed and fixed on the suction port of the fixture. At this time, the processing device can process the workpiece. After the processing is completed, the pressure relief valve is opened to relieve the pressure on the branch pipe, and then the workpiece on the suction port of the fixture can be removed. The above-mentioned fixture system and workpiece processing equipment are convenient to disassemble and assemble, saving time and labor. After clamping, it does not affect the processing of the workpiece; and no indentation or other defects will be generated on the surface of the workpiece. Even for workpieces with lower strength, it is not easy to deform.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a clamp system provided in an embodiment of the present utility model.

Icon: 1-main pipe; 12-main valve; 2-fixture assembly; 21-fixture; 22-branch pipe; 221-branch valve; 3-pressure relief pipe; 31-pressure relief valve; 0-workpiece.

DETAILED DESCRIPTION

Example:

The present embodiment provides a fixture system for clamping a workpiece 0. The fixture 21 system includes a vacuum pump, a fixture assembly 2 and a controller, wherein the fixture assembly 2 includes a fixture 21 and a branch pipe 22, and the fixture 21 is a hollow circular cylinder structure. One end of the fixture 21 is provided with a suction port for adsorbing the workpiece 0, and the other end is connected to the main pipe 1 on the vacuum pump through the branch pipe 22. A pressure relief valve 31 is provided on the branch pipe 22, which is used to adjust the negative pressure value in the branch pipe 22 so as to remove the workpiece 0 from the suction port. The controller is used to control the operation of the vacuum pump and the pressure relief valve so as to realize automated management.

Specifically, the above-mentioned clamp 21 is not a mechanical clamping structure, but a hollow tubular structure. The clamp 21 is fixed on the equipment frame; in order to prevent chips from falling into the workbench or the suction port of the clamp, the clamp is generally placed horizontally or vertically downward. This embodiment takes horizontal placement as an example. The suction port of the clamp is provided with a rubber ring, so that when the workpiece 0 is adsorbed on the suction port, the mating surfaces can maintain good sealing, preventing the workpiece 0 from falling off due to air leakage. A branch valve 221 is also provided on the branch pipe 22, and the branch valve 221 is closer to the vacuum device than the pressure relief valve 31. In order to facilitate the installation of the pressure relief valve 31, a pressure relief pipe 3 is provided on the branch pipe 22, one end of the pressure relief pipe 3 is connected to the branch pipe 22 to form a three-way structure, and the other end is connected to the atmosphere. The pressure relief valve 31 on the branch pipe 22 is set on the pressure relief pipe 3. It should be noted that when there is only one clamp assembly 2, the branch valve 221 may not be provided.

In order to facilitate real-time monitoring of the negative pressure value in the pipeline, pressure sensors are provided on the branch pipe 22 and the main pipe 1. In addition, a main valve 12 is also provided on the main pipe 1, and the main valve 12 and each pressure sensor are electrically connected to the controller. The pressure sensor can transmit the signal to the controller in real time, and the controller controls the opening of each valve and the negative pressure value of the vacuum device according to the actual situation. The above-mentioned controller can adopt PLC or single-chip microcomputer, and each valve adopts a solenoid valve. Since controlling the opening of the solenoid valve by the controller is a relatively mature technology, it will not be described in detail. In addition, since the controller, vacuum device and pressure sensor can be purchased directly, this application will not describe them in detail.

In order to improve the overall processing efficiency, the fixture system includes a plurality of fixture assemblies 2, which are arranged in parallel, that is, the branch pipe 22 of each fixture assembly 2 is directly connected to the main pipe 1. Each fixture assembly 2 works independently and does not affect each other.

In addition, the present embodiment further provides a workpiece processing device, which includes a processing device and the above-mentioned fixture 21 system. After the fixture 21 adsorbs and fixes the workpiece 0, the processing device processes the workpiece 0. For example, when cutting diamonds, the processing device can be a laser cutter. Compared with fixing diamonds by gluing, the fixture 21 system provided in this embodiment is easy to disassemble and assemble, and there is no residue after disassembly, and no further processing is required.

The method of using the above workpiece processing equipment is as follows:

First, confirm that all branch valves 221 and pressure relief valves 31 are closed; if some branch valves 221 and pressure relief valves 31 are open, the controller controls the corresponding valves to close. This step is to prepare for starting the vacuum pumping device. If some valves are not closed and the vacuum pumping device is started, it will be difficult to form a preset vacuum degree in the pipeline due to air leakage in the pipeline.

After the self-check, the vacuum device is started so that the negative pressure value in the main pipe 1 reaches the first preset value. Then the workpiece 0 is placed on the suction port of the fixture 21, and the branch valve 221 on the corresponding branch pipe 22 is opened. At this time, the workpiece 0 is fixed on the suction port of the fixture 21, and the processing device is started to process the workpiece 0.

After the processing is completed, the corresponding branch valve 221 is closed and the corresponding pressure relief valve is opened. At this time, the negative pressure on the branch pipe 22 is maintained at a second preset value by controlling the opening of the pressure relief valve. The second preset value is based on the fact that the workpiece 0 will not fall off automatically but can be taken down manually.

The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (7)

1. A fixture system for clamping a workpiece, characterized by comprising: A vacuum pumping device, the vacuum pumping device comprising a main pipe; A fixture assembly, the fixture assembly comprising a fixture and a branch pipe; the fixture is provided with a suction port, and is connected to the main pipe through the branch pipe, and the suction port is used to suction the workpiece; The branch pipe is provided with a pressure relief valve, which is used to adjust the negative pressure value in the branch pipe, and the pressure relief valve is a solenoid valve; A controller is electrically connected to the vacuum pumping device and the pressure relief valve, and the controller can control the negative pressure value of the vacuum pumping device and can control the opening of the pressure relief valve. 2. A clamping system according to claim 1, characterized in that: The clamp system comprises a plurality of the clamp assemblies, each of which is connected to the main pipe via a corresponding branch pipe; Each of the branch pipes is provided with a branch valve, and the branch valve is used to control the on-off of the branch pipe; the main pipe is provided with a main valve; the branch valve and the main valve are both solenoid valves; the controller is electrically connected to the main valve and the branch valve. 3. A clamping system according to claim 1, characterized in that: The controller is a PLC or a single chip microcomputer. 4. A clamp system according to any one of claims 1 to 3, characterized in that: The branch pipe is provided with a pressure relief pipe, the pressure relief pipe and the branch pipe form a three-way structure, and the pressure relief valve is provided on the pressure relief pipe. 5. A clamping system according to claim 4, characterized in that: The main pipe and the branch pipe are both provided with pressure sensors, and the pressure sensors are electrically connected to the controller; the controller can control the operation of the vacuum pumping device, the corresponding branch valve and the corresponding pressure relief valve according to the value of the pressure sensor. 6. A workpiece processing device, comprising a processing device and a fixture system according to any one of claims 1 to 4, characterized in that: The controller is electrically connected to the processing device and is used to control the operation of the processing device. 7. A workpiece processing equipment according to claim 6, characterized in that the processing device is a laser cutter.