CN202271231U - Parallel measuring device for column guide rail of gantry milling machine - Google Patents

Abstract

The utility model discloses a parallel measuring device for column guide rails of a gantry milling machine, which comprises a measuring rod and a dial indicator connected to the top end of the measuring rod, and a pressing portion is arranged at the bottom end of the measuring rod. The parallel measuring device for column guide rails of a gantry milling machine is connected to the top end of the measuring rod with a dial indicator, and the relative position of two column guide rails of the gantry milling machine is measured by using the telescopic amount of the dial indicator, so as to achieve the purpose of measuring parallel accuracy. The device is easy to use, simple to operate and has high measuring accuracy.

Description

Parallel measuring device for column guide rail of gantry milling machine

technical field

The utility model relates to the field of mechanical engineering, in particular to a parallel measuring device for column guide rails of a gantry milling machine.

Background technique

With the development of society and the continuous improvement of technology, the equipment manufacturing industry has higher and higher requirements for processing machine tools. Due to the development of heavy industry, the size of the parts of the equipment is getting larger and larger, which requires large-scale processing machine tools, especially large-scale gantry milling machines. The two columns of the CNC gantry milling machine are the main components of the machine tool. The parallel accuracy of the guide rails of the two columns directly affects the accuracy of the gantry frame, and ultimately affects the accuracy of the whole machine.

The existing method of measuring the parallel accuracy of the guide rails of the two columns of the gantry milling machine is to place a right-angle level on the side of the two columns, measure the angles of the two columns respectively, and then judge the parallel accuracy of the two columns. For large heavy-duty gantry milling machines, the two columns The distance between the two columns is relatively large, generally greater than 2000mm. It is difficult to measure the parallel accuracy of the two columns with a right-angle level, which affects the accuracy of the entire gantry frame and the whole machine, and the accuracy and error of the right-angle level for measuring the distance between the two columns. Very large, it is difficult to ensure accurate measurement. At the same time, it consumes manpower and material resources and increases the measurement cost.

Contents of the invention

The utility model aims at providing a parallel measuring device for column guide rails of a gantry milling machine, which is convenient to use, simple to operate and high in measuring precision for the defects of the above-mentioned background technology.

In order to achieve the above purpose, the utility model discloses a parallel measuring device for the column guide rail of a gantry milling machine, which includes a measuring rod and a dial indicator fixed on the top of the measuring rod, and the bottom of the measuring rod is set There is a pressure part.

Further, the measuring rod is a telescopic rod structure.

Further, the top end of the measuring rod is provided with a fixed chuck, and the dial indicator includes a probe head, a meter body and a holding boss, and the holding boss extends from the bottom end of the meter body. The holding post is clamped in the fixed chuck.

Further, the pressing portion is cylindrical.

To sum up, the parallel measuring device for column guide rails of gantry milling machine of the utility model is clamped and connected with a dial indicator at the top of the measuring rod, and the relative position of the two column guide rails of the gantry milling machine can be measured by using the expansion and contraction of the dial indicator. The purpose of measuring parallel precision is achieved, and the utility model is convenient to use, simple to operate and high in measuring precision.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is an exploded view of the utility model shown in Fig. 1 .

Fig. 3 is a combination diagram of the utility model and the column guide rail of the gantry milling machine.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Fig. 1 to Fig. 3, the utility model gantry milling machine column guide rail parallel measuring device includes a measuring rod 10 and a dial indicator 20, the measuring rod 10 is a telescopic rod structure, and the actual length can be adjusted according to the needs. The top end of the measuring rod 10 is provided with a fixed chuck 11 , and the bottom end of the measuring rod 10 is provided with a cylindrical pressing portion 12 . The dial gauge 20 is clamped and connected with the measuring rod 10, and the dial gauge 20 includes a probe head 21, a gauge body 22 and a holding boss 23, and the probe head 21 is arranged on the top of the gauge body 22 , the holding protrusion 23 extends from the bottom of the watch body 22 , and the holding protrusion 23 is clamped in the fixed chuck 11 .

In actual use, the gantry milling machine is provided with a left column guide rail 30 and a right column guide rail 40, first press the pressing portion 12 at the bottom end of the measuring rod 10 against the left side end of the right column guide rail 40, and keep the pressing portion 12 The part in contact with the right column guide rail 40 does not shift, and the measuring rod 10 is rotated. At this time, the dial indicator 20 held on the top end of the measuring rod 10 is in contact with the right end surface of the left column guide rail 30, and the detection The head 21 records the maximum amount of expansion and contraction along with the rotation of the measuring rod 10. At this time, the measuring rod 10 is perpendicular to the right end surface of the left column guide rail 30; Press on the other end of the left side of the right column guide rail 40, keep the contact part of the pressing part 12 and the right column guide rail 40 from shifting, rotate the measuring rod 10, and the probe head 21 will follow the movement of the measuring rod 10 Rotate to record the maximum value of the expansion and contraction. At this time, the measuring rod 10 is perpendicular to the right end face of the left column guide rail 30; so many changes are made to measure the different positions of the left column guide rail 30 and the right column guide rail 40 up and down until the measurement data meets the requirements. , compare the maximum value of the expansion and contraction of the dial indicator 20, so as to determine the parallel accuracy of the two column guide rails and then adjust the installation position of the two column guide rails.

To sum up, the utility model gantry milling machine column guide rail parallel measuring device is clamped and connected with the dial indicator 20 at the top of the measuring rod 10, and uses the expansion and contraction of the dial indicator 20 to measure the distance between the two column guide rails of the gantry milling machine. The relative position achieves the purpose of measuring the parallel accuracy, which is convenient to use, simple to operate and high in measurement accuracy.

The above-mentioned embodiment only expresses one implementation mode of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present utility model should be based on the appended claims.

Claims (4)

1. A parallel measuring device for column guide rails of a gantry milling machine, characterized in that it includes a measuring rod (10) and a dial indicator (20) connected to the top end of the measuring rod (10), the measuring rod (10) The bottom end is provided with a pressing portion (12). 2. The parallel measuring device for the column guide rail of the gantry milling machine according to claim 1, characterized in that: the measuring rod (10) is a telescopic rod structure. 3. The parallel measuring device for the column guide rail of the gantry milling machine according to claim 1, characterized in that: the top end of the measuring rod (10) is provided with a fixed chuck (11), and the dial indicator (20) includes Probing head (21), surface body (22) and holding boss (23), said detecting head (21) is arranged on the top of said surface body (22), and said holding boss (23) is formed by said surface body The bottom end of (22) extends out, and the holding boss (23) is clamped in the chuck (11). 4. The parallel measuring device for the column guide rail of the gantry milling machine according to claim 1, characterized in that: the pressing part (12) is in the shape of a cylinder.

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