CN206578682U - A kind of high-precision valve inner face lapping device - Google Patents

Abstract

The utility model discloses a high-precision valve internal end surface grinding device, which comprises a working box, a cylinder, a special clamp for valves, a grinding disc and a motor. The cylinder is connected to the travel switch, the cylinder and the travel switch are electrically connected to the control box through the control wire, the control box is fixed on the column, the bottom of the cylinder is connected to the telescopic rod, the bottom of the telescopic rod is connected to the special clamp for the valve, and the special clamp for the telescopic rod and the valve A pressure sensor is installed at the joint, and a grinding disc is installed under the special fixture for the valve. The high-precision valve internal end surface grinding device is convenient for fast fixing of the valve, with good clamping effect and automatic control, so that the valve always maintains a constant pressure and improves The accuracy and efficiency of valve processing can avoid excessive wear caused by excessive valve movement, improve the quality of valve processing, and reduce the scrap rate of valve processing.

Description

A high-precision valve inner end surface grinding device

technical field

The utility model relates to the technical field of valve production and processing, in particular to a high-precision valve inner end surface grinding device.

Background technique

In the manufacture of valves, in order to ensure the sealing performance of the valves, it is necessary to grind the inner end faces. Grinding occupies a very important position and has a significant impact on the quality of the valves. In the past, the grinding methods were all manual grinding. For the valve body, a disc-shaped grinding tool is usually used, placed on the inner end surface of the cavity, and then connected with a connecting seat through a long handle handle to drive the grinding disc for grinding movement. This grinding method is because the inner end surface is in the valve body cavity. Grinding is more difficult; grinding the valve with manual grinding tools has poor stability, resulting in an imbalance in the pressure between the valve and the grinding disc, resulting in unstable grinding quality of the valve, low production efficiency, and excessive pressure, which can easily lead to damage to the valve , The scrap rate is relatively high, and it is not suitable for grinding operations in the valve production process.

Utility model content

The purpose of this utility model is to provide a high-precision valve internal end surface grinding device to solve the problems raised in the above-mentioned background technology.

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

A high-precision valve internal end face grinding device, including a working box, a cylinder, a special fixture for valves, a grinding disc and a motor. The upper end of the working box is connected to a workbench, and a column is installed on the workbench. The travel switch, the cylinder and the travel switch are electrically connected to the control box through the control wires, and the control box is fixed on the column. The bottom of the cylinder is connected to the telescopic rod, and the bottom of the telescopic rod is connected to the special clamp for the valve. For the sensor, there is a grinding disc under the special fixture for the valve, the grinding disc is connected to the rotating shaft through a clamping piece, the bottom of the rotating shaft passes through the workbench and is connected to the motor, and the motor is arranged in the control box.

As a further solution of the utility model: the column is an L-shaped structure.

As a further solution of the utility model: the pressure sensor is connected to the control box through wireless direction.

As a further solution of the utility model: a positioning cap is provided on the bottom side of the grinding disc.

As a further solution of the utility model: a limiting disc is welded on the rotating shaft.

Compared with the prior art, the utility model has the beneficial effects that: the high-precision valve internal end surface grinding device has a reasonable structural design, convenient operation and use, and is convenient for fast fixing of the valve, with good clamping effect and automatic control, so that The valve always maintains a constant pressure, improves the accuracy and efficiency of valve processing, avoids excessive wear caused by excessive valve movement, improves the quality of valve processing, and reduces the scrap rate of valve processing.

Description of drawings

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

Fig. 2 is a schematic diagram of the structure of the grinding disc in the present invention.

In the figure: 1-working box, 2-limit plate, 3-positioning cap, 4-control box, 5-column, 6-control line, 7-travel switch, 8-cylinder, 9-telescopic rod, 10-pressure Sensor, 11-special fixture for valve, 12-grinding disc, 13-rotary shaft, 14-table, 15-motor, 16-clamping piece.

detailed description

See Figures 1-2 for details. In the embodiment of the present utility model, a high-precision valve internal end surface grinding device includes a working box 1, a cylinder 8, a valve special fixture 11, a grinding disc 12 and a motor 15. The upper end of the working box 1 Connect the workbench 14, the workbench 14 is equipped with a column 5, the column 5 is an L-shaped structure, the upper end of the column 5 is installed with a cylinder 8, the cylinder 8 is connected to the travel switch 7, and the cylinder 8 and the travel switch 7 are electrically connected through the control line 6 The control box 4, the control box 4 is fixed on the column 5, the bottom of the cylinder 8 is connected to the telescopic rod 9, the bottom of the telescopic rod 9 is connected to the valve special clamp 11, and the joint between the telescopic rod 9 and the valve special clamp 11 is equipped with a pressure sensor 10, the pressure The sensor 10 is connected to the control box 4 through the wireless direction. A grinding disc 12 is provided under the valve special fixture 11. A positioning cap 3 is provided on the bottom side of the grinding disc 12. The grinding disc 12 is connected to the rotating shaft 13 through a clip 16, and the rotating shaft 13 The bottom passes through the workbench 14 to connect the motor 15, the motor 15 is arranged in the control box 4, and the limit disk 2 is welded on the rotating shaft 13.

When in use, first fix the valve to be processed on the special valve fixture 11, then start the cylinder 8 and the motor 15 through the control box 4, and set the pressure value of the valve receiving the grinding disc 12 in advance, and the cylinder 8 is driven by the telescopic rod 9 The special clamp 11 for the valve and the valve move downward, and the control box 4 controls the reversing of the cylinder 8 through the travel switch 7, which is convenient for adjusting the telescopic movement of the telescopic rod 9; the motor 15 drives the limit disc 2 and the grinding disc 12 to rotate through the rotating shaft 13; the valve Moving downward, the inner end surface of the valve contacts the grinding disc 12, and the inner end surface of the valve is ground by the grinding disc 12. The pressure sensor 10 at the bottom of the telescopic rod 9 monitors the pressure change of the valve in real time and transmits the pressure signal to the control box 4. The control box 4 passes through the The stroke switch 7 controls the cylinder 8 to reversingly adjust the telescopic movement of the telescopic rod 9, so that the valve always maintains a constant pressure and improves the accuracy and efficiency of valve processing. The positioning cap 3 and the limit plate 2 limit the valve to avoid excessive valve movement. Cause excessive wear, improve the quality of valve processing, and reduce the scrap rate of valve processing.

Claims (5)

1. a kind of high-precision valve inner face lapping device, including work box, cylinder, valve special fixture, abrasive disk and electronic Machine, it is characterised in that column is provided with work box upper end connecting working table, workbench, column upper end is provided with cylinder, Travel switch is connected on cylinder, cylinder and travel switch electrically connect control cabinet by control line respectively, and control cabinet is fixed on column On, the cylinder bottom connection expansion link, expansion link bottom connecting valve special fixture, expansion link is connected with valve special fixture Place, which is provided with below pressure sensor, the valve special fixture, is provided with abrasive disk, and abrasive disk connects rotary shaft by shackle member, Rotary shaft bottom connects motor through workbench, and motor is arranged in control cabinet.

2. a kind of high-precision valve inner face lapping device according to claim 1, it is characterised in that the column is L Type structure.

3. a kind of high-precision valve inner face lapping device according to claim 1, it is characterised in that the pressure sensing Device connects control cabinet by wireless direction.

4. a kind of high-precision valve inner face lapping device according to claim 1, it is characterised in that the abrasive disk bottom Side is provided with positioning cap.

5. a kind of high-precision valve inner face lapping device according to claim 1, it is characterised in that in the rotary shaft It is welded with position-arresting disk.