CNC machine tool internet-of-things acquisition device

Abstract

The application discloses a CNC machine tool internet-of-things acquisition device, which comprises a shell, a processor is installed in the middle of the inner cavity of the shell, mutually symmetrical conversion elements are installed on the upper and lower walls of the inner cavity of the shell, the number of the conversion elements is four, the conversion elements are distributed in two groups, one group is arranged on one side, the outer part of the shell is connected with a fixing element; the conversion element comprises a guide column and two brackets, a piezoelectric plate is connected between the brackets, the guide column penetrates through the piezoelectric plate and is sleeved with a spring at the outer ring, a positive electrode is arranged on one side of the piezoelectric plate, and a negative electrode is arranged on the other side, sleeves are slidably connected between the opposite conversion elements, and one end of the spring is fixedly connected with the sleeve; the processor is provided with a plurality of input interfaces, and the processor is provided with a signal output line, a signal input line and a power line.

Description

Technical Field

[0001] This invention belongs to the field of IoT data acquisition technology, specifically relating to an IoT data acquisition device for CNC machine tools. Background Technology

[0002] CNC machine tools are modern electromechanical equipment that integrates mechanics, electricity, and hydraulics. The complexity of CNC technology itself, the diversity of processes, and the complexity of the parts being machined result in a wide variety of CNC system specifications, significant performance differences, complex control parameters, and cumbersome debugging and operation.

[0003] CNC machine tools complete the machining of workpieces by moving the cutting tool according to a predetermined program. During the machining process, if the cutting tool vibrates due to unexpected circumstances, it will seriously affect the machining quality and cause safety hazards. Therefore, a CNC machine tool IoT data acquisition device that can collect cutting tool vibration information is provided. Summary of the Invention

[0004] In view of the problems raised in the background art above, the purpose of this invention is to provide a CNC machine tool IoT data acquisition device.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] The CNC machine tool IoT data acquisition device includes a housing, in which a processor is installed in the middle of the inner cavity of the housing, and in which symmetrical conversion elements are installed on the upper and lower walls of the inner cavity of the housing. The number of conversion elements is four, and the conversion elements are distributed in pairs on each side. The housing is connected to a fixing element on the outside.

[0007] The conversion element includes a guide post and two brackets. A piezoelectric plate is connected between the brackets. The guide post passes through the piezoelectric plate and is fitted with a spring on its outer ring. A positive electrode is provided on one side of the piezoelectric plate and a negative electrode is provided on the other side. A sleeve is slidably connected between the opposing conversion elements. One end of the spring is fixedly connected to the sleeve.

[0008] The processor is provided with several input interfaces, and the processor is provided with signal output lines, signal input lines and power lines.

[0009] Furthermore, the conversion element and the housing are connected by bolts. This structural design allows the connection between the conversion element and the housing to be completed by bolts.

[0010] Further specified, the upper and lower walls of the housing are provided with I-shaped mounting cavities, the waist of the mounting cavity is provided with threads, the bracket is provided with a base and a vertical rod, the base is located at the lower part of the mounting cavity, the base is provided with a connecting cavity, the inner wall of the connecting cavity is also provided with threads, the bolt is located in the mounting cavity and is fastened to the base by the threads. This structural design provides the placement position of the bolt and the base through the I-shaped mounting cavity, and because the mounting cavity is I-shaped and has corners, the airtightness is improved, and the connection structure is provided by the matching of bolts and threads.

[0011] Further specifying, the piezoelectric plate and the bracket are bonded together with process adhesive, the vertical rod has a notch, the piezoelectric plate is limited by the notch, and the corner of the piezoelectric plate and the notch of the vertical rod are bonded together with process adhesive. This structural design limits the piezoelectric plate by the notch and completes the bonding by process adhesive.

[0012] Furthermore, the front end of the guide post is connected to a low-friction coefficient sliding sleeve, which is located inside the sleeve cavity. This structural design avoids excessive wear when the sleeve slides along the guide post, thus preventing a short service life. The low-friction coefficient sliding sleeve also reduces the frictional resistance during the sleeve's movement, ensuring that the reciprocating motion of the sleeve is not excessively hindered and that energy consumption is not too high, thereby making the measurement results more accurate.

[0013] Furthermore, one end of the spring is connected to the sleeve, and the other end is connected to the housing. The spring also passes through the piezoelectric plate. This structural design makes the spring's position distribution more reasonable.

[0014] Furthermore, the outer wall of the housing is connected to a signal indicator light, and a cover net is installed on the outer wall of the signal indicator light. This structural design uses the signal indicator light to represent the measurement result and the cover net to protect the signal indicator light.

[0015] Furthermore, the fixing element is provided with a placement cavity adapted to the shape of the housing. The fixing element has an arc-shaped adapter plate below the placement cavity. One end of the arc-shaped adapter plate has a pin hole and the other end has a threaded hole. The arc-shaped adapter plate is connected to a pin through the pin hole and a fastening bolt through the threaded hole. With this structural design, the arc-shaped adapter plate is adapted to the installation position, the pin hole and pin are used for positioning, and the threaded hole and fastening bolt are used for fastening.

[0016] Furthermore, the fixing element has a wire-passing hole below the placement cavity, and the wire-passing hole penetrates the arc-shaped adapter plate. This structural design allows signal output lines, signal input lines, and power lines to pass through the wire-passing hole.

[0017] The beneficial effects of this invention are:

[0018] 1. It can effectively detect whether the tool vibration is abnormal during the movement of CNC machine tools, thereby improving production quality and reducing the incidence of safety accidents;

[0019] 2. It can collect information from multiple locations simultaneously, and the accuracy and effectiveness of the output results are high. Attached Figure Description

[0020] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the internal structure of an embodiment of the CNC machine tool IoT data acquisition device of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of an embodiment of the IoT data acquisition device for CNC machine tools of the present invention;

[0023] Figure 3 This is a schematic diagram of the conversion element in an embodiment of the CNC machine tool IoT acquisition device of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure at point A in an embodiment of the CNC machine tool IoT data acquisition device of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure at point B in an embodiment of the CNC machine tool IoT data acquisition device of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure at point C in an embodiment of the CNC machine tool IoT data acquisition device of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure at point D in an embodiment of the CNC machine tool IoT data acquisition device of the present invention;

[0028] The symbols for the main components are explained below:

[0029] Housing 1, mounting cavity 11;

[0030] 2. Conversion element, 21. Base, 211. Connecting cavity, 212. Process adhesive, 22. Vertical rod, 221. Notch, 23. Positive electrode, 24. Negative electrode, 25. Piezoelectric plate, 26. Guide post, 27. Spring, 28. Low friction coefficient sliding sleeve;

[0031] Processor 3, input interface 31, signal output line 32, signal input line 33, power supply line 34;

[0032] 4. Bolt; 5. Signal indicator light; 6. Net cover; 7. Sleeve.

[0033] Fixed component 8, placement cavity 81, arc-shaped adapter plate 82, pin 83, fastening bolt 84, wire hole 85. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] like Figure 1-7 As shown, the CNC machine tool IoT acquisition device of the present invention includes a housing 1, a processor 3 installed in the middle of the inner cavity of the housing 1, and symmetrical conversion elements 2 installed on the upper and lower walls of the inner cavity of the housing 1. The number of conversion elements 2 is four, and the conversion elements 2 are distributed in pairs on each side. A fixing element 8 is connected to the outside of the housing 1.

[0036] The conversion element 2 includes a guide post 26 and two brackets. A piezoelectric plate 25 is connected between the brackets. The guide post 26 passes through the piezoelectric plate 25 and a spring 27 is sleeved on its outer ring. A positive electrode 23 is provided on one side of the piezoelectric plate 25 and a negative electrode 24 is provided on the other side. A sleeve 7 is slidably connected between the opposing conversion elements 2. One end of the spring 27 is fixedly connected to the sleeve 7.

[0037] The processor 3 is provided with several input interfaces 31, signal output lines 32, signal input lines 33, and power lines 34.

[0038] In this case, the IoT acquisition device is positioned and installed on the tool post of the CNC machine tool by fixing element 8. The tool is installed at the front end of the tool post. When the tool post drives the tool to rotate, the IoT acquisition device rotates together. During the rotation, the sleeve 7 moves along the guide column 26. Since the conversion element 2 is symmetrically arranged, springs 27 are connected to both ends of the sleeve 7. This movement is a reciprocating motion.

[0039] When the tool moves normally and no accidents occur, the sleeve 7 compresses the spring 27 and reciprocates within the normal range, or impacts the piezoelectric plate 25 with a relatively light impact force. The piezoelectric plate 25 deforms and the piezoelectric effect occurs. The positive electrode 23 and the negative electrode 24 are connected to the processor 3 through the input interface 31 and generate a small current in the circuit. As the impact frequency changes and the processing time increases, the current value can form an XY coordinate graph with time, with the X-axis representing time and the Y-axis representing the current magnitude. The absolute value of the Y value is always maintained within the standard range. When the reciprocating range of the sleeve 7 is small and the sleeve 7 does not impact the piezoelectric plate 25, no current is generated in the circuit and the Y value is zero.

[0040] If an accident occurs during the cutting process and the cutting of the workpiece causes severe vibration, the sleeve 7 will move violently, and its reciprocating motion range will reach its limit. After hitting the piezoelectric plate 25, it will move in the opposite direction or stick to it. At this time, the absolute value of the Y value will be greater than the standard range and will show a diagonal line segment distribution. By processing the current information by the processor 3, it can effectively determine whether the tool is in a normal working state, improve production quality, and reduce the accident rate. At this time, the processor 3 outputs information to the control terminal of the CNC machine tool through the signal output line 32, so that the CNC machine tool stops to avoid greater losses. The signal input line 33 is used to input the standard range value of the current.

[0041] Because the housing 1 has four conversion elements 2 arranged inside, the processor 3 can simultaneously collect the movement of the sleeve 7 from multiple positions, which improves the accuracy and effectiveness of the detection output results.

[0042] Preferably, the conversion element 2 and the housing 1 are connected by bolts 4. This structural design allows the connection between the conversion element 2 and the housing 1 to be completed by bolts 4. In practice, other connection methods between the conversion element 2 and the housing 1 can also be considered depending on the specific circumstances.

[0043] Preferably, the upper and lower walls of the housing 1 are provided with I-shaped mounting cavities 11. The waist of the mounting cavity 11 is provided with threads. The bracket is provided with a base 21 and a vertical rod 22. The base 21 is located at the lower part of the mounting cavity 11 and is provided with a connecting cavity 211. The inner wall of the connecting cavity 211 is also provided with threads. The bolt 4 is located in the mounting cavity 11 and is fastened to the base 21 by the threads. This structural design provides the placement position of the bolt 4 and the base 21 through the I-shaped mounting cavity 11. Moreover, since the mounting cavity 11 is I-shaped and has corners, the airtightness is improved. The connection structure is provided by the matching of the bolt 4 and the threads. In fact, other specific connection structures between the housing 1 and the conversion element 2 can also be considered according to specific circumstances.

[0044] Preferably, the piezoelectric plate 25 and the bracket are bonded together with process adhesive 212. The vertical rod 22 has a notch 221, through which the piezoelectric plate 25 is limited. The process adhesive 212 bonds the corners of the piezoelectric plate 25 and the notch 221 of the vertical rod 22. This structural design uses the notch 221 to limit the piezoelectric plate 25 and the process adhesive 212 to complete the bonding. In practice, other connection structures between the piezoelectric plate 25 and the bracket can also be considered depending on the specific situation.

[0045] Preferably, a low-friction coefficient sliding sleeve 28 is connected to the front end of the guide post 26. The low-friction coefficient sliding sleeve 28 is located inside the sleeve 7. This structural design avoids excessive wear and short service life of the sleeve 7 when it slides along the guide post 26. The low-friction coefficient sliding sleeve 28 reduces the frictional resistance of the sleeve 7 during movement, ensuring that the reciprocating motion of the sleeve 7 is not excessively hindered and that energy consumption is not too high, thus resulting in more accurate measurement results. In practice, other structures that can improve the service life of the sleeve 7 and reduce frictional resistance can also be considered depending on the specific circumstances.

[0046] Preferably, one end of the spring 27 is connected to the sleeve 7, and the other end is connected to the housing 1. The spring 27 also passes through the piezoelectric plate 25. This structural design makes the position distribution of the spring 27 more reasonable. In fact, the position distribution of the spring 27 can also be considered according to specific circumstances.

[0047] Preferably, a signal indicator light 5 is connected to the outer wall of the housing 1, and a cover 6 is installed on the outer wall of the signal indicator light 5. This structural design uses the signal indicator light 5 to represent the measurement result and the cover 6 to protect the signal indicator light 5. In practice, other structures for representing the measurement result can also be considered depending on the specific circumstances.

[0048] Preferably, the fixing element 8 has a placement cavity 81 that adapts to the shape of the housing 1. Below the placement cavity 81, the fixing element 8 has an arc-shaped adapter plate 82. One end of the arc-shaped adapter plate 82 has a pin hole, and the other end has a threaded hole. The arc-shaped adapter plate 82 is connected to a pin 83 through the pin hole and a fastening bolt 84 through the threaded hole. This structural design allows the arc-shaped adapter plate 82 to adapt to the installation position, the pin hole and pin 83 to achieve positioning, and the threaded hole and fastening bolt 84 to achieve fastening. In practice, other structural shapes of the fixing element 8 can also be considered depending on the specific circumstances.

[0049] Preferably, the fixing element 8 has a wire-passing hole 85 below the placement cavity 81, through which the wire-passing hole 85 passes the arc-shaped adapter plate 82. This structural design allows the signal output line 32, signal input line 33, and power line 34 to pass through the wire-passing hole 85. In practice, other structures for passing the signal output line 32, signal input line 33, and power line 34 can also be considered depending on the specific situation.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A CNC machine tool IoT data acquisition device, characterized in that: Includes a housing (1), in which a processor (3) is installed in the middle of the inner cavity of the housing (1), and symmetrical conversion elements (2) are installed on the upper and lower walls of the inner cavity of the housing (1). The number of conversion elements (2) is four, and the conversion elements (2) are distributed in pairs on each side. The outer side of the housing (1) is connected to a fixing element (8). The conversion element (2) and the housing (1) are connected by bolts (4). The conversion element (2) includes a guide post (26) and two brackets. A piezoelectric plate (25) is connected between the brackets. The guide post (26) passes through the piezoelectric plate (25) and a spring (27) is sleeved on the outer ring. A positive electrode (23) is provided on one side of the piezoelectric plate (25) and a negative electrode (24) is provided on the other side. A sleeve (7) is slidably connected between the opposite conversion elements (2). One end of the spring (27) is fixedly connected to the sleeve (7) and the other end is connected to the housing (1). The spring (27) also passes through the piezoelectric plate (25). The upper and lower walls of the housing (1) are provided with I-shaped mounting cavities (11). The waist of the mounting cavity (11) is provided with threads. The bracket is provided with a base (21) and a vertical rod (22). The base (21) is located at the lower part of the mounting cavity (11). The base (21) is provided with a connecting cavity (211). The inner wall of the connecting cavity (211) is also provided with threads. The bolt (4) is located in the mounting cavity (11) and is fastened to the base (21) by the threads. The processor (3) is provided with several input interfaces (31), and the processor (3) is provided with signal output lines (32), signal input lines (33) and power supply lines (34).

2. The CNC machine tool IoT data acquisition device according to claim 1, characterized in that: The piezoelectric plate (25) and the bracket are bonded together by process adhesive (212). The vertical rod (22) has a notch (221). The piezoelectric plate (25) is limited by the notch (221). The process adhesive (212) bonds the corner of the piezoelectric plate (25) and the notch (221) of the vertical rod (22).

3. The CNC machine tool IoT data acquisition device according to claim 2, characterized in that: The front end of the guide post (26) is connected to a low friction coefficient sliding sleeve (28), which is located in the inner cavity of the sleeve (7).

4. The CNC machine tool IoT data acquisition device according to claim 3, characterized in that: The outer wall of the housing (1) is connected to a signal indicator light (5), and a cover net (6) is installed on the outer wall of the signal indicator light (5) of the housing (1).

5. The CNC machine tool IoT data acquisition device according to claim 4, characterized in that: The fixing element (8) is provided with a placement cavity (81) that is adapted to the shape of the housing (1). The fixing element (8) is provided with an arc-shaped adapter plate (82) below the placement cavity (81). One end of the arc-shaped adapter plate (82) is provided with a pin hole and the other end is provided with a threaded hole. The arc-shaped adapter plate (82) is connected to a pin (83) through the pin hole and to a fastening bolt (84) through the threaded hole.

6. The CNC machine tool IoT data acquisition device according to claim 5, characterized in that: The fixing element (8) has a wire hole (85) below the placement cavity (81), and the wire hole (85) passes through the arc-shaped adapter plate (82).

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