Automatic measuring equipment based on feeding and discharging application of machine tool

Abstract

The utility model discloses automatic measuring equipment based on feeding and discharging application of a machine tool. The equipment comprises a metal plate cabinet body, a three-coordinate measuring mechanism, a high-precision measuring head system, an inner and outer diameter measuring mechanism and a metal plate support, the three-coordinate measuring mechanism is installed on the metal plate cabinet body, the high-precision measuring head system is installed at the tail end of the three-coordinate measuring mechanism, and the bottom of the high-precision measuring head system is provided with a high-precision three-axis measuring head. The inner and outer diameter measuring mechanism is installed on the three-coordinate measuring mechanism, a customizable measuring jig is arranged on the inner and outer diameter measuring mechanism and located below the high-precision measuring head system, the metal plate support is installed on the metal plate cabinet body, and a measuring control system is installed in the metal plate support. According to the automatic measuring equipment based on machine tool feeding and discharging application, superposition errors caused by mechanisms, deformation and electric control are solved through the sheet metal cabinet body, the linear motor, the high-speed and high-precision special system and the servo, an open type feeding and discharging structure is used, and the requirements for small-amount and diversified size measurement and unmanned production line can be met.

Description

Technical Field

[0001] The utility model relates to the field of measuring equipment, in particular to an automatic measuring equipment based on loading and unloading of machine tools. Background Art

[0002] With the popularization of machine tool loading and unloading production lines and the introduction of the concept of intelligent unmanned factories, the demand for intelligent manufacturing in production line applications is increasing, and the application of related equipment such as articulated robots, intelligent measurement and tool compensation solutions, and central control solutions is also becoming more and more widespread.

[0003] In production line applications, intelligent measurement solutions generally need to achieve an accuracy of less than 0.5 wire, and the measurement speed needs to keep up with the processing rhythm. It is also required that the deformation of the equipment should be very small during long-term use, the accuracy and response of the electronic control solution should be high, and it should be able to replace manual labor and automatically load and unload materials. These requirements have given rise to different forms of automatic measurement equipment on the market. In addition to the mainstream three-dimensional coordinate measuring instruments for measuring rooms (high precision has extremely high requirements on the processing environment, cannot be applied to production lines, and are expensive), there are mainly two forms:

[0004] 1. The measuring equipment consisting of an air flotation meter and a PLC module is mainly composed of a pneumatic meter control device and an independently designed inner and outer diameter measuring mechanism. When measuring the inner diameter, the workpiece is placed on the measuring head manually or by a robot, and the air pressure reading is compared to see whether the inner diameter is within the standard range. When measuring the outer diameter, the workpiece is placed on the measuring fixture and pushed into place by an auxiliary mechanism, and the air pressure reading is compared to see whether the inner diameter is within the standard range. However, the measurement requirements of this equipment determine that the gap between the workpiece and the probe is very small, and automated application is difficult. The feeding accuracy requirement is too high, and the success rate is not high. It is only suitable for manual measurement and can only measure one type of workpiece. If the workpiece is replaced, the measuring mechanism needs to be redesigned, and it cannot cope with small and diverse production situations.

[0005] 2. The measuring equipment consisting of profile plus contact probe and PLC module is mainly composed of three-axis motor, three-axis screw module, probe (contact or non-contact), PLC control module, and auxiliary measuring fixture, which can measure the inner and outer diameters and height of the workpiece; however, due to mechanical errors, the accuracy of this equipment cannot be guaranteed, and it is generally used for rough measurement with low accuracy requirements. Moreover, during the long-term use of the equipment, the structure of the profile will cause the deformation amount to become larger and larger, which cannot meet the measurement requirements. Utility Model Content

[0006] In order to solve the above problems, the utility model provides an automatic measuring device based on loading and unloading applications of machine tools.

[0007] According to one aspect of the utility model, an automatic measuring device based on loading and unloading of machine tools is provided, comprising:

[0008] Sheet metal cabinet;

[0009] A three-coordinate measuring mechanism, wherein the three-coordinate measuring mechanism is installed on the sheet metal cabinet;

[0010] A high-precision probe system, which is installed at the end of the three-coordinate measuring mechanism and has a high-precision three-axis measuring probe at its bottom;

[0011] An inner and outer diameter measuring mechanism, the inner and outer diameter measuring mechanism is installed on the three-coordinate measuring mechanism, and a customizable measuring fixture is provided thereon, and the customizable measuring fixture is located below the high-precision probe system;

[0012] A sheet metal bracket is installed on the sheet metal cabinet and a measurement control system is installed therein.

[0013] In some embodiments, an electric control system is integrated into the sheet metal cabinet, which is beneficial in that the sheet metal cabinet can not only play a supporting role, but also can be used to integrate the electric control system.

[0014] In some embodiments, the three-coordinate measuring mechanism includes a marble base plate, a Y-axis linear motor module, an X-axis linear motor module and a Z-axis grinding-grade screw, the Y-axis linear motor module and the X-axis linear motor module are mounted on the marble base plate, and the X-axis linear motor module is located directly below the Y-axis linear motor module, the Z-axis grinding-grade screw is mounted on the Y-axis linear motor module, the customizable measuring fixture is mounted on the X-axis linear motor module, and the high-precision probe system is connected to the Z-axis grinding-grade screw. The benefit is that the specific structure of the three-coordinate measuring mechanism is described.

[0015] In some embodiments, the accuracy of the high-precision three-axis measuring head is 0.5 μm. The invention is beneficial in that the relevant parameters of the high-precision three-axis measuring head are described.

[0016] In some embodiments, the high-precision probe system has a 3D-printed outer cover on its exterior, which is beneficial in that the outer cover can protect the high-precision probe system.

[0017] In some embodiments, a transfer table is further included, which is mounted on the sheet metal cabinet and arranged side by side with the inner and outer diameter measuring mechanism. The benefit is that the transfer table can be used to place the product and then load it onto the inner and outer diameter measuring mechanism using a robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an automatic measuring device based on loading and unloading of machine tools in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 The structural schematic diagram of the three-coordinate measuring mechanism and the high-precision probe system is shown;

[0020] Figure 3 for Figure 1 Another angle structural diagram of the inner and outer diameter measuring mechanism, sheet metal bracket and turntable is shown.

[0021] In the figure: sheet metal cabinet 1, three-coordinate measuring mechanism 2, high-precision probe system 3, inner and outer diameter measuring mechanism 4, sheet metal bracket 5, turntable 6, marble base plate 21, Y-axis linear motor module 22, X-axis linear motor module 23, high-precision three-axis measuring head 31, outer cover 32, and customizable measuring fixture 41. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-3 As shown, the equipment includes an integrated sheet metal cabinet 1, which serves as the main support. Other main structures, including a three-coordinate measuring mechanism 2, a high-precision probe system 3, an inner and outer diameter measuring mechanism 4, a sheet metal bracket 5 and a transfer table 6, are directly or indirectly installed on the sheet metal cabinet 1.

[0024] In addition, an electric control system is integrated into the sheet metal cabinet 1 .

[0025] The three-coordinate measuring mechanism 2 is installed on the sheet metal cabinet 1, and mainly includes a marble base plate 21, a Y-axis linear motor module 22, an X-axis linear motor module 23 and a Z-axis grinding-grade screw (not shown in the figure), etc., wherein the marble base plate 21 is laid on the sheet metal cabinet 1, the Y-axis linear motor module 22 and the X-axis linear motor module 23 are both installed on the marble base plate 21, and the X-axis linear motor module 23 is located directly below the Y-axis linear motor module 22 and is placed orthogonally to the Y-axis linear motor module 22 (a gantry structure made of marble can be set to support the height of the Y-axis linear motor module 22), and the Z-axis grinding-grade screw is installed on the Y-axis linear motor module 22.

[0026] The high-precision probe system 3 is installed at the end of the three-dimensional coordinate measuring mechanism 2, and the bottom thereof has a high-precision three-axis measuring head 31. The high-precision three-axis measuring head 31 is connected to the Z-axis grinding grade screw, and its accuracy is 0.5μm, which can meet the measurement of the inner and outer diameters and heights of different workpieces.

[0027] In addition, a 3D printed outer cover 32 is provided outside the high-precision probe system 3 , and the outer cover 32 protects the Z-axis grinding-grade screw and the high-precision three-axis measuring head 31 inside.

[0028] The inner and outer diameter measuring mechanism 4 is installed on the X-axis linear motor module 23 of the three-dimensional coordinate measuring mechanism 2, and a customizable measuring fixture 41 is provided on the inner and outer diameter measuring mechanism 4, and the customizable measuring fixture 41 is located below the high-precision three-axis measuring head 31 of the high-precision probe system 3. Among them, the customizable measuring fixture 41 can include an outer diameter measuring structure, an inner diameter measuring structure, and an auxiliary structure, etc., and can quickly replace different workpiece measuring mechanisms, and adopt an open loading method, which has low requirements for robot loading and can meet the unmanned production line requirements.

[0029] The sheet metal bracket 5 is installed on the sheet metal cabinet 1, and a measurement control system dedicated to the Xindai Company can be installed therein.

[0030] The transfer table 6 is installed on the sheet metal cabinet 1, and is arranged side by side with the inner and outer diameter measuring mechanism 4, on which the product to be inspected can be placed. Then the robot arm used for loading will grab the product and place it on the customizable measuring fixture 41 of the inner and outer diameter measuring mechanism 4. After alignment through the three-coordinate measuring mechanism 2, the high-precision three-axis measuring head 31 of the high-precision probe system 3 is used for measurement.

[0031] The automatic measuring device based on the loading and unloading of machine tools in the utility model mainly has the following advantages:

[0032] 1. Provides a stable measurement platform to ensure that the deformation of the equipment is within the allowable range during long-term use;

[0033] 2. Use the new generation of CNC dedicated high-precision control system and servo configuration to ensure the mechanism response and accuracy requirements;

[0034] 3. Abandoning the traditional screw module, the high-speed and high-precision linear motor module is used as the transmission mechanism, so that the accuracy is further improved;

[0035] 4. The universal auxiliary measuring mechanism is used, which can meet the measurement of small quantities and various dimensions without changing the fixture;

[0036] 5. An open loading method is used, which has very low requirements for robot loading and can meet the needs of unmanned production lines.

[0037] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An automatic measuring device based on loading and unloading of machine tools, characterized in that: include Sheet metal cabinet (1); A three-coordinate measuring mechanism (2), wherein the three-coordinate measuring mechanism (2) is mounted on the sheet metal cabinet (1); A high-precision probe system (3), the high-precision probe system (3) is installed at the end of the three-coordinate measuring mechanism (2), and has a high-precision three-axis measuring head (31) at its bottom; An inner and outer diameter measuring mechanism (4), the inner and outer diameter measuring mechanism (4) being mounted on the three-coordinate measuring mechanism (2) and having a customizable measuring fixture (41) thereon, the customizable measuring fixture (41) being located below the high-precision probe system (3); A sheet metal bracket (5), wherein the sheet metal bracket (5) is mounted on the sheet metal cabinet (1) and a measurement control system is installed therein.

2. The automatic measuring device based on loading and unloading of machine tools according to claim 1 is characterized in that: An electric control system is integrated in the sheet metal cabinet (1).

3. The automatic measuring device based on the loading and unloading of machine tools according to claim 1 is characterized in that: The three-coordinate measuring mechanism (2) comprises a marble base plate (21), a Y-axis linear motor module (22), an X-axis linear motor module (23) and a Z-axis ground-grade screw rod; the Y-axis linear motor module (22) and the X-axis linear motor module (23) are mounted on the marble base plate (21), and the X-axis linear motor module (23) is located directly below the Y-axis linear motor module (22); the Z-axis ground-grade screw rod is mounted on the Y-axis linear motor module (22); the customizable measuring fixture (41) is mounted on the X-axis linear motor module (23); and the high-precision probe system (3) is connected to the Z-axis ground-grade screw rod.

4. The automatic measuring device based on loading and unloading of machine tools according to claim 1 is characterized in that: The accuracy of the high-precision three-axis measuring head (31) is 0.5 μm.

5. The automatic measuring device based on the loading and unloading of machine tools according to claim 1 is characterized in that: The high-precision probe system (3) has a 3D-printed outer cover (32) on the outside.

6. The automatic measuring device based on loading and unloading of machine tools according to claim 1 is characterized in that: It also includes a transfer table (6), which is installed on the sheet metal cabinet (1) and arranged side by side with the inner and outer diameter measuring mechanism (4).

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