Device for measuring RTCP of five-axis machine tool and machine tool

Abstract

The utility model discloses a five-axis machine tool measuring RTCP device and machine tool, including measuring body and fixed base, measuring body includes gauge outfit and measuring end, the gauge outfit is located on the fixed base and is fixedly connected with the fixed base, the number of measuring body is a plurality, the measuring body is located in three different directions, and the measuring end is fixed on the fixed base. Each measuring body points to the same point along the extension line of the measuring end, and every two measuring bodies intersect along the extension line of the measuring end to form an included angle. According to the invention, the three measuring bodies carry out measurement from three directions at the same time, deviation in multiple directions in a three-dimensional space can be measured after one-time installation, deviation in different directions can be measured without changing the position of a meter frame, and the measuring bodies intersect along the extension lines of the measuring ends to form 90-degree included angles.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tool measurement, in particular to a device for measuring RTCP of a five-axis machine tool and a machine tool. Background Art

[0002] RTCP is the abbreviation of "Rotary Tool Center Point", which means the center point of the rotary tool. In the machining of five-axis machine tools, RTCP refers to the measurement of the center point of the tool path. Measuring RTCP is to ensure that the five-axis machine tool can accurately control the tool path during the machining process and guarantee the accuracy and quality of the machined parts. In the prior art, a magnetic base is often used during testing. Since the base is long and prone to deformation, it affects the measurement accuracy; when measuring in different directions, the direction of the base needs to be changed multiple times, which affects the measurement efficiency; when the suction position of the dial indicator is on the rotating axis, the base and the dial indicator will rotate in three-dimensional space during the measurement of RTCP. The base is a connecting rod structure. At this time, the base and the dial indicator will generate lateral forces in different directions due to self-weight deformation and keep changing, seriously affecting the measurement accuracy or even causing failure. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to realize a device for measuring RTCP of a five-axis machine tool and a machine tool with guaranteed measurement accuracy that is not affected by structural rigidity and gravity.

[0004] The purpose of the utility model is achieved by adopting the following technical solutions:

[0005] A device for measuring RTCP of a five-axis machine tool includes a measuring body and a fixed base. The measuring body includes a dial indicator head and a measuring end. The dial indicator head is located on the fixed base and fixedly connected to the fixed base. The number of the measuring bodies is multiple. The measuring bodies are located in three different directions. Each measuring body points to the same point along the extension line of the measuring end. The extension lines of every two measuring bodies intersect to form an included angle.

[0006] Preferably, the number of the measuring bodies is three, and the included angle is 90 degrees.

[0007] Preferably, the fixed base includes multiple inclined surfaces, and the inclined surfaces are concave platforms.

[0008] Preferably, the cross-sectional dimension of the inclined surface fits the cross-sectional dimension of the measuring surface of the measuring body.

[0009] Preferably, the fixed base further includes multiple clamping blocks. The clamping blocks are fixedly connected to the fixed base. One side of each clamping block is provided with a radian, and the radian is adapted to the outer cross-sectional radian of the measuring body.

[0010] Preferably, one side of the clamping block is connected, and the other side is open to form a flat U-shape, and the two sides of the flat U-shape are close to each other.

[0011] Preferably, the clamping block is provided with mounting holes, the number of the mounting holes is two and the mounting holes are symmetrically arranged about the center axis of the clamping block.

[0012] Preferably, a through hole is provided at the center of the clamping block, and the measuring end passes through the through hole and points to the center of the fixed base.

[0013] Preferably, the clamping block is fixedly clamped to the measuring body by means of bolts passing through the mounting hole.

[0014] A machine tool comprises the device for measuring RTCP of the five-axis machine tool.

[0015] Compared with the prior art, the device for measuring RTCP of a five-axis machine tool and the machine tool of the utility model have the following advantages:

[0016] (1) The device and machine tool for measuring RTCP of a five-axis machine tool of the present application, the head of the device is directly fixed on a fixed base, which shortens the distance between the head and the fixed base and increases the rigidity;

[0017] (2) The device and machine tool for measuring RTCP of a five-axis machine tool of the present application, the three measuring bodies are used for simultaneous measurement from three directions, and the deviations in multiple directions in three-dimensional space can be measured after being installed once, and there is no need to change the position of the table frame to measure the deviations in different directions, and each measuring body is at an angle of 90 degrees to each other along the extension line of the measuring end;

[0018] (3) The device and machine tool for measuring RTCP of the five-axis machine tool of the present application, although they also have their own weight, are made of a single piece of material and are very short in length, 40 mm, and do not deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a device for measuring RTCP of a five-axis machine tool of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the measuring body of the device for measuring RTCP of a five-axis machine tool of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a fixed base of a device for measuring RTCP of a five-axis machine tool of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a device clamp for measuring RTCP of a five-axis machine tool according to the utility model.

[0023] In the figure: 10, measuring body; 101, meter head; 102, measuring end; 20, fixed base; 201, inclined surface; 202, clamping block; 2021, mounting hole; 2022, through hole. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be another intermediate component through which it is fixed. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Figures 1 to 4 The device and machine tool for measuring RTCP of a five-axis machine tool according to the present invention include a measuring body 10 and a fixed base 20. The measuring body 10 includes a meter head 101 and a measuring end 102. The meter head 101 is located on the fixed base 20 and fixedly connected to the fixed base 20. The number of measuring bodies 10 is multiple, and the measuring bodies 10 are located in three different directions. Each measuring body 10 points to the same point along the extension line of the measuring end 102, and an included angle is formed by the intersection of the extension lines of every two measuring bodies 10 along the measuring end 102.

[0028] In some other preferred embodiments, the measuring body 10 is a dial indicator or a sensor, and together with measuring software, it can perform automatic measurement and correction.

[0029] Specifically, the number of measuring bodies 10 is three, and the included angle is 90 degrees.

[0030] The fixed base 20 includes a plurality of inclined surfaces 201, and the inclined surfaces 201 are concave platforms.

[0031] Specifically, the cross-sectional dimension of the inclined surface 201 in the transverse direction fits the cross-sectional dimension of the measuring surface of the measuring body 10, and can clamp the measuring body 10 tightly.

[0032] The fixed base 20 further includes multiple groups of clamping blocks 202. One side of each clamping block 202 is provided with a radian, specifically, the radian is adapted to the radian of the outer cross-section of the measuring body 10.

[0033] The fixed base 20 further includes a plurality of clamping blocks 202. The clamping blocks 202 are fixedly connected to the fixed base 20. One side of each clamping block 202 is provided with a radian, and the radian is adapted to the radian of the outer cross-section of the measuring body 10.

[0034] Specifically, one side of the clamping block 202 is connected, and the other side is open to form a flat U shape, and the two sides of the flat U shape are close to each other.

[0035] Specifically, the number of the clamping blocks 202 is the same as the number of the measuring bodies 10.

[0036] Specifically, the number of the clamping blocks 202 is three.

[0037] Specifically, the clamping block 202 that fits the inclined surface 201 is fixedly connected to the fixed base 20 by being bolted to the inclined surface 201.

[0038] Specifically, each clamping block 202 is provided with a plurality of mounting holes 2021. In a preferred embodiment, the number of the mounting holes 2021 is two and they are symmetrically arranged about the central axis of the clamping block 202.

[0039] A through hole 2022 is provided in the middle of the joint of each group of clamping blocks 202, and the measuring end 102 passes through the through hole 2022 and points to the center of the fixed base 20.

[0040] Each group of clamping blocks 202 fixes and clamps the measuring body 10 by bolts passing through the mounting holes 2021.

[0041] Although this device also has its own weight, its structure is made of a whole piece of material and its length is very short, 40 mm, and there is no deformation.

[0042] When the present application is assembled, in order to shorten the distance between the measuring body 10 and the fixed base 20 of the meter head 101 and increase the rigidity, the meter head 101 is directly fixed on the base; three measuring bodies 10 perform measurements simultaneously from three directions, and multiple-direction measurements can be carried out after being assembled once. Moreover, the axis lines of each measuring body 10 form a 90-degree angle with each other in three-dimensional space. The device for measuring RTCP of a five-axis machine tool and the machine tool of the present application have the meter head 101 directly fixed on the fixed base 20, which shortens the distance between the meter head 101 and the fixed base 20 and increases the rigidity; three measuring bodies 10 perform measurements simultaneously from three directions, and the deviations in multiple directions in three-dimensional space can be measured after being assembled once, without the need to change the position of the meter frame to measure the deviations in different directions. And the extension lines of each measuring body 10 along the measuring end 102 intersect at a 90-degree angle with each other; although there is also its own weight, the structure is made of a whole piece of material and has a very short length of 40 mm, and there is no deformation.

[0043] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can be made. These are all equivalent modifications and evolutions made to the above embodiments based on the essential technology of the present utility model, and all of these belong to the protection scope of the present utility model.

Claims

1. A device for measuring RTCP of a five-axis machine tool, comprising a measuring body and a fixed base, characterized in that: The measuring body includes a head and a measuring end, the head is located on the fixed base and fixedly connected to the fixed base, the number of the measuring bodies is multiple, the measuring bodies are located in three different directions, each of the measuring bodies points to the same point along the extension line of the measuring end, and every two measuring bodies intersect along the extension line of the measuring end to form an angle; the fixed base includes multiple inclined surfaces, and the inclined surfaces are concave platforms; the fixed base also includes multiple clamping blocks, the clamping blocks are fixedly connected to the fixed base, and each of the clamping blocks is provided with an arc on one side, and the arc is adapted to the arc of the outer cross-section of the measuring body; one side of the clamping block is connected, and the other side is open to form a flat U-shape, and the two sides of the flat U-shape are close to each other.

2. The device for measuring RTCP of a five-axis machine tool according to claim 1, characterized in that: The number of the measuring bodies is three, and the included angle is 90 degrees.

3. The device for measuring RTCP of a five-axis machine tool according to claim 1, characterized in that: The transverse cross-sectional dimension of the inclined surface matches the cross-sectional dimension of the measuring surface of the measuring body.

4. The device for measuring RTCP of a five-axis machine tool according to claim 1, characterized in that: The clamp block is provided with two mounting holes, which are arranged symmetrically about the center axis of the clamp block.

5. The device for measuring RTCP of a five-axis machine tool according to claim 1, characterized in that: A through hole is provided at the center of the clamping block, and the measuring end passes through the through hole and points to the center of the fixed base.

6. The device for measuring RTCP of a five-axis machine tool according to claim 4, characterized in that: The clamping block is fixedly clamped to the measuring body by bolts passing through the mounting holes.

7. A machine tool, characterized in that: The invention comprises a device for measuring RTCP of a five-axis machine tool as described in any one of claims 1 to 6.

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