Device for intelligently and automatically measuring tolerance of circular workpiece

Abstract

The utility model provides a device for intelligently and automatically measuring the tolerance of a circular workpiece, which comprises a circular processing workpiece, a touch sensor is arranged on one side of the circular processing workpiece, and the touch sensor is used for detecting the radius tolerance of the circular processing workpiece and outputting a corresponding current or voltage signal to a data switching box; a main circuit is arranged in the data transfer box and is used for comparing the received current or voltage signal with a reference current or voltage signal, so that a coil of the third intermediate relay or a coil of the fourth intermediate relay or a coil of the fifth intermediate relay is electrified; and three input ports of the deconcentrator are respectively connected with 24V voltage through a normally open contact of the third intermediate relay, a normally open contact of the fourth intermediate relay and a normally open contact of the fifth intermediate relay. According to the utility model, the touch sensor is additionally arranged on the workbench of the numerical control machine tool, the tolerance range of the circular workpiece can be automatically detected by touching the circular workpiece, and the detection is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a device for intelligently and automatically measuring the tolerance of a circular workpiece. Background Art

[0002] Currently, many CNC machine tools need to test the roundness of circular workpieces after completing processing to determine whether the tolerance of the circular workpiece is within the normal range. However, after the sensor detects the radius tolerance of the circular workpiece, it usually outputs a current or voltage analog signal, while the CNC system controller can usually only process digital signals. As a result, the processed circular workpiece needs to be disassembled and taken to the laboratory for roundness testing, which affects the detection efficiency. Utility Model Content

[0003] The purpose of the utility model is to improve and innovate the shortcomings and problems existing in the background technology and to provide a device for intelligently and automatically measuring the tolerance of circular workpieces.

[0004] A device for intelligently and automatically measuring the tolerance of a circular workpiece comprises a circular workpiece, wherein a touch sensor is provided on one side of the circular workpiece, the touch sensor is used to detect the radius tolerance of the circular workpiece and output a corresponding current or voltage signal to a data transfer box, wherein a main circuit is provided in the data transfer box, and the main circuit is used to compare the received current or voltage signal with a reference current or voltage signal to energize the coil of a third intermediate relay, a coil of a fourth intermediate relay, or a coil of a fifth intermediate relay; and further comprises a splitter, wherein the splitter is provided with three input ports, and the output port of the splitter is connected to a controller of a numerical control system via an I / O interface; the three input ports of the splitter are respectively connected to one end of the normally open point of the third intermediate relay, the normally open point of the fourth intermediate relay, and the normally open point of the fifth intermediate relay, and the other ends of the normally open point of the third intermediate relay, the normally open point of the fourth intermediate relay, and the normally open point of the fifth intermediate relay are all connected to a 24V voltage.

[0005] The touch sensor is a micrometer.

[0006] One end of the coil of the third intermediate relay, the coil of the fourth intermediate relay and the coil of the fifth intermediate relay are all connected to the positive pole of the power supply, and the other ends of the coil of the third intermediate relay, the coil of the fourth intermediate relay and the coil of the fifth intermediate relay are respectively connected to the collector of the corresponding transistor, the emitter of the transistor is grounded, and the bases of the three transistors are all connected to the output end of the main circuit.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides an intelligent and automatic device for measuring the tolerance of circular workpieces. A touch sensor is installed on the workbench of a CNC machine tool. By touching the circular workpiece, the radius tolerance of the circular workpiece can be automatically detected, and the corresponding current or voltage analog signal can be output to the data transfer box. The data transfer box judges whether the radius tolerance of the circular workpiece is greater than the qualified range, less than the qualified range, or within the qualified range based on the comparison result of the current or voltage analog signal with the reference current or voltage analog signal, thereby outputting a signal to trigger the corresponding transistor to conduct, so that the coil of the corresponding intermediate relay is energized, and then the normally open point of the corresponding intermediate relay is closed, so that the corresponding input port of the splitter is connected to the 24V voltage to meet the voltage requirements of the CNC system controller, so that the CNC system controller can monitor the tolerance results of the processed workpiece in real time, reducing the process time for the workpiece to go to the laboratory for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 A schematic structural diagram of a device for intelligently and automatically measuring the tolerance of a circular workpiece provided by an embodiment of the present utility model;

[0010] Figure 2 A schematic diagram of the circuit structure of the data transfer box provided in an embodiment of the present utility model;

[0011] Figure 3 This is a schematic structural diagram of a touch sensor and a circular workpiece processed on a CNC machine tool provided by an embodiment of the present utility model.

[0012] Reference numerals: touch sensor 1 , data transfer box 2 , main circuit 201 , splitter 3 , I / O interface 4 , CNC system controller 5 , circular processing workpiece 6 . DETAILED DESCRIPTION

[0013] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0014] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] See also Figure 1-Figure 3 The present invention provides an intelligent, automatic device for measuring the tolerance of circular workpieces. The device includes a CNC machine tool. A circular workpiece 6 is machined on the machine table. A touch sensor 1, which is a micrometer, is mounted on the machine table. After the circular workpiece 6 is machined, the CNC machine tool rotates the workpiece 6. During the rotation of the workpiece 6, the touch sensor 1 detects the radius tolerance of the workpiece 6 and outputs a corresponding current or voltage analog signal to a data transfer box 2. The touch sensor 1 is connected to the data transfer box 2 via a signal line, a positive power line, and a negative power line. The data transfer box 2 contains a main circuit 201, which compares the received current or voltage signal with a reference current or voltage signal to energize the coil of the third intermediate relay K3A, the coil of the fourth intermediate relay K4A, or the coil of the fifth intermediate relay K5A. One end of the coil of the third intermediate relay K3A, the coil of the fourth intermediate relay K4A, and the coil of the fifth intermediate relay K5A are all connected to the positive electrode of the power supply. The other ends of the coils of the third intermediate relay K3A, the fourth intermediate relay K4A, and the fifth intermediate relay K5A are respectively connected to the collector of the corresponding transistor. The emitter of each transistor is grounded, and the base of each of the three transistors is connected to the output of the main circuit 201. When it is detected that the radius tolerance of the circular workpiece 6 exceeds the acceptable range, an over-tolerance output is generated, and the transistor corresponding to the third intermediate relay K3A is turned on, allowing current to flow between the collector and emitter of the transistor, thereby energizing the coil corresponding to the third intermediate relay K3A. Similarly, when it is detected that the radius tolerance of the circular workpiece 6 is within the qualified range, a qualified output is performed, so that the coil corresponding to the fourth intermediate relay K4A is energized. When it is detected that the radius tolerance of the circular workpiece 6 is less than the qualified range, an over-under output is performed, and the coil corresponding to the fifth intermediate relay K4A is energized, thereby converting the corresponding current or voltage analog signal output by the touch sensor 1 into a digital signal.

[0017] Furthermore, the intelligent automatic measurement device for circular workpiece tolerances also includes a splitter 3, the output port of which is connected to the CNC system controller 5 via the I / O interface 4. The splitter 3 is provided with three input ports, namely ports X3.1, X3.2, and X3.3. The three input ports of the splitter 3 are respectively connected to one end of the normally open point of the third intermediate relay K3A, the normally open point of the fourth intermediate relay K4A, and the normally open point of the fifth intermediate relay K5A. The other ends of the normally open points of the third intermediate relay K3A, the fourth intermediate relay K4A, and the fifth intermediate relay K5A are all connected to a 24V voltage. When the coil of the third intermediate relay K3A is energized, the normally open point of the third intermediate relay K3A will be closed, so that the X3.1 port of the splitter 3 inputs a 24V voltage. The 24V voltage can meet the voltage requirements of the CNC system controller. After the CNC system controller inputs a 24V voltage according to the corresponding input port, it can determine the radius tolerance range of the circular workpiece 6, so that the CNC system controller can monitor the tolerance results of the workpiece in real time, reducing the process time for the workpiece to go to the laboratory for testing.

[0018] In summary, the utility model provides a device for intelligently and automatically measuring the tolerance of circular workpieces. A touch sensor 1 is installed on the workbench of a CNC machine tool. By touching the circular workpiece 6, the radius tolerance of the circular workpiece 6 can be automatically detected, and the corresponding current or voltage analog signal can be output to the data transfer box 2. The data transfer box 2 judges whether the radius tolerance of the circular workpiece 6 is greater than the qualified range, less than the qualified range, or within the qualified range based on the comparison result of the current or voltage analog signal with the reference current or voltage analog signal, thereby outputting a signal to trigger the corresponding transistor to conduct, so that the coil of the corresponding intermediate relay is energized, and then the normally open point of the corresponding intermediate relay is closed, so that the corresponding input port of the splitter is connected to the 24V voltage to meet the voltage requirements of the CNC system controller 5, so that the CNC system controller 5 can monitor the tolerance results of the circular workpiece 6 in real time, reducing the process time of the circular workpiece 6 going to the laboratory for testing.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the utility model.

[0020] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0021] Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Mentioning "embodiments" in this article means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An intelligent and automatic device for measuring the tolerance of circular workpieces, characterized by: The invention comprises a circular workpiece (6), a touch sensor (1) is provided on one side of the circular workpiece (6), the touch sensor (1) is used to detect the radius tolerance of the circular workpiece (6), and output a corresponding current or voltage signal to a data transfer box (2), the data transfer box (2) is provided with a main circuit (201), the main circuit (201) is used to compare the received current or voltage signal with a reference current or voltage signal, so as to make the coil of the third intermediate relay (K3A) or the coil of the fourth intermediate relay (K4A) or the coil of the fifth intermediate relay (K5A) pass. The invention also includes a splitter (3), wherein the splitter (3) is provided with three input ports, and the output port of the splitter (3) is connected to the CNC system controller (5) through the I / O interface (4); the three input ports of the splitter (3) are respectively connected to one end of the normally open point of the third intermediate relay (K3A), the normally open point of the fourth intermediate relay (K4A) and the normally open point of the fifth intermediate relay (K5A), and the other ends of the normally open point of the third intermediate relay (K3A), the normally open point of the fourth intermediate relay (K4A) and the normally open point of the fifth intermediate relay (K5A) are all connected to a 24V voltage.

2. The device for intelligently and automatically measuring the tolerance of circular workpieces according to claim 1, characterized in that: The touch sensor (1) is a micrometer.

3. The device for intelligently and automatically measuring the tolerance of circular workpieces according to claim 1, characterized in that: One end of the coil of the third intermediate relay (K3A), the coil of the fourth intermediate relay (K4A), and the coil of the fifth intermediate relay (K5A) are all connected to the positive electrode of the power supply, and the other ends of the coil of the third intermediate relay (K3A), the coil of the fourth intermediate relay (K4A), and the coil of the fifth intermediate relay (K5A) are respectively connected to the collector of the corresponding transistor, the emitter of the transistor is grounded, and the bases of the three transistors are all connected to the output end of the main circuit (201).

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