Temperature compensation device of numerical control machine tool

Abstract

The utility model relates to a numerical control machine tool temperature compensation device which comprises a base assembly which comprises a base, guide rails installed on the two opposite sides of the top face of the base and a linear driving module installed in the middle of the top face of the base. The temperature control assembly is connected with the base assembly; the temperature control assembly comprises a plurality of temperature sensors which are uniformly mounted on one side of each guide rail at intervals, a temperature sensing acquisition controller connected with the temperature sensors, and a machine tool system controller connected with the temperature sensing acquisition controller; the machine tool system controller is further electrically connected with the linear driving module. A probe of the temperature sensor abuts against the guide rail. The numerical control machine tool temperature compensation device is simple in structure and convenient to use, the temperature sensor is used for collecting temperature data of the guide rail position, compensation is conducted on the linear driving module in real time, and therefore the machining error is reduced, and the machining quality is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a temperature compensation device for numerical control machine tools. Background Art

[0002] CNC machine tools are highly efficient and automated machine tools that combine mechanical equipment with a numerical control system, and are particularly suitable for processing complex parts. CNC machine tools combine multiple functions such as milling, boring, drilling, tapping and thread cutting, allowing it to complete multiple processing operations in one operation.

[0003] However, during high-speed precision machining, the heat generated by the friction of CNC machine tool bearings, guide rails, lead screws, etc. and changes in ambient temperature will cause changes in the temperature of machine tool parts, and then cause thermal deformation of machine tool parts due to thermal expansion and contraction, affecting the machining quality. Utility Model Content

[0004] Based on this, the utility model provides a temperature compensation device for CNC machine tools, which has a simple structure and is easy to use. It uses a temperature sensor to collect temperature data of the guide rail position and compensates the linear drive module in real time, thereby reducing processing errors and effectively ensuring processing quality.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A temperature compensation device for a numerically controlled machine tool, comprising:

[0007] A base assembly, comprising a base, guide rails installed on opposite sides of a top surface of the base, and a linear drive module installed in the middle of the top surface of the base; and

[0008] A temperature control component connected to the base component; the temperature control component includes a plurality of temperature sensors evenly spaced and installed on one side of each guide rail, a temperature sensing acquisition controller connected to the temperature sensors, and a machine tool system controller connected to the temperature sensing acquisition controller; the machine tool system controller is also electrically connected to the linear drive module; the probe of the temperature sensor abuts the guide rail.

[0009] The temperature compensation device for CNC machine tools has a simple structure and is easy to use. It uses a temperature sensor to collect temperature data of the guide rail position and compensates the linear drive module in real time, thereby reducing processing errors and effectively ensuring processing quality.

[0010] In one embodiment, first bosses are respectively provided on opposite sides of the top surface of the base along the length direction thereof, and the first bosses are used to support the connecting guide rails.

[0011] In one embodiment, the probe of the temperature sensor abuts against the side surface of the guide rail and the side surface of the first boss at the same time.

[0012] In one of the embodiments, a second boss is protruding from one side of the base corresponding to each first boss, and a plurality of openings are evenly spaced along the length of the second boss; the temperature sensor is correspondingly installed inside the opening.

[0013] In one embodiment, the height of the top surface of the first boss is smaller than the height of the top surface of the second boss, and the height of the top surface of the guide rail is larger than the height of the top surface of the second boss.

[0014] In one embodiment, a top surface of the first protrusion is higher than a bottom surface of the opening.

[0015] In one embodiment, the thickness of the temperature sensor is less than or equal to the depth of the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a temperature compensation device for a CNC machine tool according to an embodiment of the utility model;

[0017] Figure 2 for Figure 1 An exploded schematic diagram of a temperature compensation device for a CNC machine tool is shown;

[0018] Figure 3 for Figure 1 A cross-sectional view of a base assembly in a temperature compensation device for a CNC machine tool is shown;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of circle A shown;

[0020] Figure 5 for Figure 1 A cross-sectional view of a temperature compensation device for a CNC machine tool shown;

[0021] Figure 6 for Figure 5 An enlarged schematic diagram of circle B is shown.

[0022] Notes on the attached drawings:

[0023] 10-base assembly, 11-base, 12-guide rail, 13-linear drive module, 14-first boss, 15-second boss, 16-opening;

[0024] 20-temperature control component, 21-temperature sensor, 22-temperature sensing acquisition controller, 23-machine tool system controller. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] 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 considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] See also Figures 1 to 6 , is a temperature compensation device for a numerically controlled machine tool according to an embodiment of the utility model, comprising a base assembly 10 and a temperature control assembly 20 connected to the base assembly 10 .

[0029] The base assembly 10 includes a base 11, guide rails 12 installed on opposite sides of the top surface of the base 11, a linear drive module 13 installed in the middle of the top surface of the base 11, and a moving component (not shown) slidably connected to the top of the base 11; the linear drive module 13 is connected to the moving component to drive the moving component to move linearly along the guide rails 12. The moving component is a component such as a processing platform and an optical machine.

[0030] First bosses 14 are respectively provided on opposite sides of the top surface of the base 11 along the length direction thereof, and the first bosses 14 are used to carry the connecting guide rails 12. Second bosses 15 are also provided on one side of the base 11 corresponding to each first boss 14, and the second bosses 15 are provided with a plurality of openings 16 evenly spaced along the length direction thereof, the openings 16 pass through opposite sides of the second bosses 16, and one end of the opening 16 is arranged toward the first boss 14.

[0031] like Figure 4 As shown, in this embodiment, the height of the top surface of the first boss 14 is smaller than the height of the top surface of the second boss 15 , and the height of the top surface of the guide rail 12 is greater than the height of the top surface of the second boss 15 .

[0032] like Figure 4 As shown, in this embodiment, the top surface of the first boss 15 is higher than the bottom surface of the opening 16 .

[0033] The temperature control assembly 20 includes a plurality of temperature sensors 21 evenly spaced and installed on one side of each guide rail 12, a temperature sensing acquisition controller 22 connected to the temperature sensor 21, and a machine tool system controller 23 connected to the temperature sensing acquisition controller 22; the machine tool system controller 23 is also electrically connected to the linear drive module 13. Among them, the temperature sensor 21 is correspondingly installed inside the opening 16, and the probe of the temperature sensor 21 abuts the guide rail 12 to sense and measure the actual temperature of the guide rail 12. The temperature sensing acquisition controller 22 feeds back the collected temperature data to the machine tool system controller 23, and the machine tool system controller 23 controls the movement of the linear drive module 13 for compensation after calculation. Compared with traditional CNC machine tools, the utility model uses the temperature sensor 21 to collect the temperature data of the position of the guide rail 12, and compensates the linear drive module 13 in real time, so as to reduce the processing error and effectively ensure the processing quality.

[0034] Furthermore, if Figure 6 As shown, the probe of the temperature sensor 21 abuts against the side of the guide rail 12 and the side of the first boss 14 at the same time. Since the temperature distribution in the processing environment is often uneven, by simultaneously measuring the temperature of the guide rail 12 and the first boss 14, the temperature sensor 21 can capture the temperature difference in different areas of the processing environment, thereby providing more comprehensive and accurate temperature data, which provides strong support for subsequent compensation.

[0035] In this embodiment, the thickness of the temperature sensor 21 is less than or equal to the depth of the opening 16, ensuring that the temperature sensor 21 can be easily installed inside the opening 16, which not only improves the convenience of installation, but also ensures that the temperature sensor 21 can accurately sense and measure the actual temperature of the guide rail 12.

[0036] The temperature compensation device for CNC machine tools has a simple structure and is easy to use. The temperature sensor 21 is used to collect temperature data of the guide rail 12 position and compensate the linear drive module 13 in real time, thereby reducing processing errors and effectively ensuring processing quality.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A temperature compensation device for a CNC machine tool, characterized in that: include: A base assembly, comprising a base, guide rails installed on opposite sides of a top surface of the base, and a linear drive module installed in the middle of the top surface of the base; and A temperature control component connected to the base component; the temperature control component includes a plurality of temperature sensors evenly spaced and installed on one side of each guide rail, a temperature sensing acquisition controller connected to the temperature sensors, and a machine tool system controller connected to the temperature sensing acquisition controller; the machine tool system controller is also electrically connected to the linear drive module; the probe of the temperature sensor abuts the guide rail.

2. The temperature compensation device for a CNC machine tool according to claim 1, characterized in that: First bosses are respectively provided on opposite sides of the top surface of the base along the length direction thereof, and the first bosses are used to bear the connecting guide rails.

3. The temperature compensation device for a numerically controlled machine tool according to claim 2, characterized in that: The probe of the temperature sensor abuts against the side surface of the guide rail and the side surface of the first boss at the same time.

4. The temperature compensation device for a numerically controlled machine tool according to claim 2, characterized in that: A second boss is protrudingly provided on one side of the base corresponding to each first boss, and a plurality of openings are evenly spaced along the length direction of the second boss; the temperature sensor is correspondingly installed inside the opening.

5. The temperature compensation device for a numerically controlled machine tool according to claim 4, characterized in that: The height of the top surface of the first boss is smaller than the height of the top surface of the second boss, and the height of the top surface of the guide rail is larger than the height of the top surface of the second boss.

6. The temperature compensation device for a numerically controlled machine tool according to claim 4, characterized in that: The top surface of the first boss is higher than the bottom surface of the opening.

7. The temperature compensation device for a numerically controlled machine tool according to claim 4, characterized in that: The thickness of the temperature sensor is less than or equal to the depth of the opening.

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