Temperature rise detection device for calorific value in AC swing angle milling head of five-axis gantry milling machine

Abstract

The invention discloses a five-axis gantry milling AC swing angle milling head internal calorific value temperature rise detection device which structurally comprises an A shaft, a C shaft and a milling cutter, the A shaft is rotationally connected with the C shaft, and the milling cutter is in transmission connection with the C shaft; the shaft A comprises a main shaft sleeve, a gear set and a detection device, the main shaft sleeve is rotationally connected with the shaft C, the gear set is installed in the main shaft sleeve, and the detection device is installed on the inner end face of the main shaft sleeve; the side end face, capable of being tightly attached to the gear set, in the detection structure is used for monitoring the temperature, the control chip can process and transmit multi-point detection data in the detection structure, meanwhile, the heat preservation layer can play a role in heat insulation, the situation that the control chip is damaged due to high temperature is avoided, and the service life of the gear set is prolonged. The temperature of the gear set during working is detected, the milling head base is cooled, and the situation that the interior of the milling head is affected by high temperature and damaged is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of CNC milling heads, and in particular to a device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing angle milling head. Background Art

[0002] During the processing of CNC machine tools, the double-swing milling head will generate a lot of heat due to the action of internal and external heat sources. The internal parts will deform due to the heat. The deformation of each part will affect, transfer, and overlap each other, and finally be reflected at the tip of the tool. If the tip of the tool deviates from the ideal processing trajectory, processing errors will occur. Thermal error compensation technology is one of the key technologies to improve the processing accuracy of five-axis linkage CNC machine tools. Thermal error compensation control equipment has become an essential intelligent module for modern high-end CNC machine tools. The double-swing milling head is the core component of the five-axis CNC machine tool. Changes in the accuracy of the swing milling head will seriously affect the processing accuracy of the machine tool.

[0003] Based on the above, the inventors have found that the existing five-axis gantry milling AC swing angle milling head internal heat generation temperature rise detection device mainly has the following deficiencies, for example: the existing milling head rotates at high speed during operation, causing the mutual friction between the gear groups to generate heat, and the friction temperature between the gear groups will increase after the milling head works for a long time, causing the gear groups to easily deform due to heat, resulting in deviations in the connections of the various parts in the milling head, thereby affecting the processing effect on the workpiece. Summary of the invention

[0004] In view of the above problems, the present invention provides a device for detecting the internal heat generation and temperature rise of an AC swing-angle milling head of a five-axis gantry milling machine.

[0005] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a five-axis gantry milling AC swing angle milling head internal heat generation temperature rise detection device, the structure of which includes an A-axis, a C-axis, and a milling cutter, the A-axis is rotatably connected with the C-axis, and the milling cutter is transmission-connected with the C-axis; the A-axis includes a spindle sleeve, a gear set, and a detection device, the spindle sleeve is rotatably connected with the C-axis, the gear set is installed inside the spindle sleeve, and the detection device is installed on the inner end surface of the spindle sleeve; The detection device includes a mounting seat, a detection structure, and a fixed plate. The end of the mounting seat is fixedly connected to the detection structure. The detection structure is closely attached to the end face of the gear set and does not contact the gear set. The fixed plate is fixedly connected to the end face of the mounting seat, and the fixed plate is bolted to the end face of the main shaft sleeve. The detection device comprises a support frame, a heat insulation structure, and a control chip. The support frame is fixedly connected to the end surface of the fixed plate, the heat insulation structure is arranged on the inner end surface of the support frame, and the control chip is arranged in the middle of the heat insulation structure. The thermal insulation structure is provided with a protective plate layer, a waterproof and breathable layer, a thermal insulation layer, a through hole, and a sealing sleeve. The protective plate layer is arranged on the inner end surface of the support frame, the waterproof and breathable layer is attached to the inner end surface of the protective plate layer, the thermal insulation layer is arranged on the inner end surface of the waterproof and breathable layer, two through holes are provided, and the through holes are respectively arranged on the left and right sides of the thermal insulation layer, and the sealing sleeve is clamped and installed in the through hole; The protective plate layer is made of metal, the waterproof and breathable layer is a new type of polymer waterproof material, and the thermal insulation layer is made of polyurethane foam; The sealing sleeve is made of rubber; The temperature can be monitored through the side end surface of the detection structure that is close to the gear group, and the control chip can process and transmit the data of multi-point detection in the detection structure. At the same time, the heat insulation structure is protected by a metal protective plate layer to prevent the control chip from being damaged by collision. At the same time, water vapor entering the waterproof and breathable layer can damage the end surface of the control chip.

[0006] Furthermore, the detection structure includes a heat transfer plate, a fixing groove, a temperature sensor probe, and a circuit. The end face of the heat transfer plate is provided with a fixing groove, and the fixing groove is bolted to the end face of the mounting base through bolts. Five temperature sensor probes are provided, and the temperature sensor probes are arranged on the end face of the heat transfer plate. The circuit connects the five temperature sensor probes.

[0007] Furthermore, a connector is provided on the end surface of the temperature sensor probe, and the connector is electrically connected to the circuit.

[0008] Furthermore, the heat transfer plate is made of the same material, and the copper heat transfer plate has good thermal conductivity, can fully absorb heat, and then accurately monitor the temperature through the temperature sensor probe.

[0009] Furthermore, the metal plate of the temperature sensor probe is in an arc shape, and the arc-shaped temperature sensor probe can be closely attached to the end face of the gear set to monitor the temperature outside the gear set. If the temperature detected by the gear set is too high, cooling treatment is required.

[0010] Furthermore, the heat transfer plate is fixedly connected to five temperature sensor probes, and the temperature of each position of the gear set can be detected through the five temperature sensor probes to avoid the situation where the temperature of a certain position of the gear set is too high and is not detected. Beneficial Effects

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the side end surface of the detection structure that can be closely attached to the gear group to monitor the temperature, and the control chip can process and transmit the data of multi-point detection in the detection structure. At the same time, the thermal insulation layer can play a role of heat insulation to prevent the control chip from being damaged by high temperature. The temperature of the gear group during operation is detected, and the milling head seat is cooled to prevent the inside of the milling head from being damaged by high temperature.

[0012] The present invention utilizes five temperature sensor probes to detect the temperature of each position of the gear set, thereby preventing the excessively high temperature at a certain position of the gear set from not being detected. The heat generation and temperature rise inside the milling head can be accurately detected, and preventive measures can be taken promptly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of a device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing angle milling head according to the present invention.

[0014] Figure 2 It is a schematic diagram of the A-axis front cross-sectional structure of the present invention.

[0015] Figure 3 It is a schematic diagram of the main structure of the detection device of the present invention.

[0016] Figure 4 It is a schematic diagram of the top cross-sectional structure of the mounting base of the present invention.

[0017] Figure 5 It is a schematic diagram of a top cross-sectional structure of the heat insulation structure of the present invention.

[0018] Figure 6 It is a schematic diagram of a top-down cross-sectional structure of the detection structure of the present invention.

[0019] Figure 7 It is a schematic diagram of the front view structure of the temperature sensor probe of the present invention.

[0020] In the figure: A-axis 1, C-axis 2, milling cutter 3, spindle sleeve 11, gear set 12, detection device 13, mounting seat 131, detection structure 132, fixed plate 133, support frame 1311, thermal insulation structure 1312, control chip 1313, protective plate layer 151, waterproof and breathable layer 152, thermal insulation layer 153, through hole 154, sealing sleeve 155, heat transfer plate 1321, fixing groove 1322, temperature sensor probe 1323, circuit 1324, connector 1325. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] Example 1: Please refer to Figure 1-Figure 5 , the specific embodiments of the present invention are as follows: Its structure includes an A-axis 1, a C-axis 2, and a milling cutter 3. The A-axis 1 is rotatably connected to the C-axis 2, and the milling cutter 3 is transmission-connected to the C-axis 2. The A-axis 1 includes a main shaft sleeve 11, a gear set 12, and a detection device 13. The main shaft sleeve 11 is rotatably connected to the C-axis 2, the gear set 12 is installed inside the main shaft sleeve 11, and the detection device 13 is installed on the inner end surface of the main shaft sleeve 11. The detection device 13 includes a mounting seat 131, a detection structure 132, and a fixed plate 133. The end of the mounting seat 131 is fixedly connected to the detection structure 132. The detection structure 132 is closely attached to the end face of the gear set 12, and the detection structure 132 is not in contact with the gear set 12. The fixed plate 133 is fixedly connected to the end face of the mounting seat 131, and the fixed plate 133 is bolted to the end face of the main shaft sleeve 11. The detection device 13 includes a support frame 1311, a heat insulation structure 1312, and a control chip 1313. The support frame 1311 is fixedly connected to the end surface of the fixed plate 133, the heat insulation structure 1312 is arranged on the inner end surface of the support frame 1311, and the control chip 1313 is arranged in the middle of the heat insulation structure 1312. The thermal insulation structure 1312 is provided with a protective plate layer 151, a waterproof and breathable layer 152, a thermal insulation layer 153, a through hole 154, and a sealing sleeve 155. The protective plate layer 151 is arranged on the inner end surface of the support frame 1311, the waterproof and breathable layer 152 is attached to the inner end surface of the protective plate layer 151, the thermal insulation layer 153 is arranged on the inner end surface of the waterproof and breathable layer 152, two through holes 154 are provided, and the through holes 154 are respectively arranged on the left and right sides of the thermal insulation layer 153, and the sealing sleeve 155 is clamped and installed in the through hole 154; The protective plate layer 151 is made of metal, the waterproof and breathable layer 152 is a new type of polymer waterproof material, and the thermal insulation layer 153 is made of polyurethane foam; The sealing sleeve 155 is made of rubber; The detection structure 132 is fixed by supporting the mounting seat 131 through the fixing plate 133, so that the detection structure 132 can be close to the side end surface of the gear group 12 to monitor the temperature, and the control chip 1313 can process and transmit the data of multi-point detection in the detection structure 132. At the same time, the heat insulation structure 1312 is protected by the protective plate layer 151 made of metal material, which can prevent the control chip 1313 from being damaged by collision.

[0023] Based on the above embodiment, the specific working principle is as follows: the C-axis 2 can be rotated on the end face of the A-axis 1, so that the angle of the milling cutter 3 can be adjusted by swinging the A-axis 1 to process the workpiece, and the milling cutter 3 can be disassembled and replaced in the C-axis 2. When the working temperature of the gear group 12 increases, the detection structure 132 can be fixed by supporting the mounting seat 131 through the fixed plate 133, so that the detection structure 132 can be close to the side end face of the gear group 12 to monitor the temperature, and the control chip 1313 can process and transmit the data of multi-point detection in the detection structure 132. At the same time, the heat insulation structure 1312 is protected by the protective plate layer 151 made of metal material, which can prevent the control chip 1313 from being damaged by collision. At the same time, water vapor enters the end face of the control chip 1313 through the waterproof and breathable layer 152, and the thermal insulation layer 153 can play a role of heat insulation to prevent the control chip 1313 from being damaged by high temperature.

[0024] Example 2: Please refer to Figure 6-Figure 7 , the specific embodiments of the present invention are as follows: The detection structure 132 includes a heat transfer plate 1321, a fixing groove 1322, a temperature sensor probe 1323, and a circuit 1324. The end face of the heat transfer plate 1321 is provided with a fixing groove 1322, and the fixing groove 1322 is bolted to the end face of the mounting base 131 by bolts. Five temperature sensor probes 1323 are provided, and the temperature sensor probes 1323 are arranged on the end face of the heat transfer plate 1321. The circuit 1324 connects the five temperature sensor probes 1323.

[0025] A connector 1325 is disposed on the end surface of the temperature sensor probe 1323 , and the connector 1325 is electrically connected to the circuit 1324 .

[0026] The heat transfer plate 1321 is made of the same material, and the copper heat transfer plate 1321 has good thermal conductivity, can fully absorb heat, and then accurately monitor the temperature through the temperature sensor probe 1323.

[0027] The metal plate of the temperature sensor probe 1323 is in an arc shape. The arc-shaped temperature sensor probe 1323 can be closely attached to the end face of the gear set 12 to monitor the temperature outside the gear set 12. If the temperature detected by the gear set 12 is too high, cooling treatment is required.

[0028] The heat transfer plate 1321 is fixedly connected to the five temperature sensor probes 1323. The five temperature sensor probes 1323 can detect the temperature of each position of the gear set 12 to avoid the temperature of a certain position of the gear set 12 being too high without being detected.

[0029] Based on the above embodiment, the specific working principle is as follows: the arc shape of the heat transfer plate 1321 can be used to allow the heat transfer plate 1321 to fit the end face of the gear set 12 to absorb heat, and then the temperature of the end face of the heat transfer plate 1321 is detected by the temperature sensor probe 1323, so that the temperature rise of the gear set 12 can be monitored, and five temperature sensor probes 1323 are set on the end face of the heat transfer plate 1321, so as to detect the temperature of each position of the gear set 12, so as to avoid the temperature of a certain position of the gear set 12 being too high without being detected, and the heat generation and temperature rise inside the milling head can be accurately detected, and preventive measures can be taken in time.

[0030] 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.

[0031] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and range of equivalent elements of the claims are included in the present invention. Any reference sign in the claims should not be regarded as limiting the claims involved.

Claims

1. A device for detecting the internal heat generation and temperature rise of an AC swing milling head of a five-axis gantry milling machine, the device comprising an A-axis (1), a C-axis (2), and a milling cutter (3), wherein the A-axis (1) and the C-axis (2) are rotationally connected, and the milling cutter (3) and the C-axis (2) are transmission-connected; the device is characterized in that: The A-axis (1) comprises a main shaft sleeve (11), a gear set (12), and a detection device (13); the main shaft sleeve (11) is rotatably connected to the C-axis (2); the gear set (12) is mounted inside the main shaft sleeve (11); and the detection device (13) is mounted on an inner end surface of the main shaft sleeve (11); The detection device (13) comprises a mounting seat (131), a detection structure (132), and a fixed plate (133); the end of the mounting seat (131) is fixedly connected to the detection structure (132); the detection structure (132) is closely attached to the end face of the gear set (12), and the detection structure (132) is not in contact with the gear set (12); the fixed plate (133) is fixedly connected to the end face of the mounting seat (131), and the fixed plate (133) is bolted to the end face of the main shaft sleeve (11); The detection device (13) comprises a support frame (1311), a heat insulation structure (1312), and a control chip (1313); the support frame (1311) is fixedly connected to the end surface of the fixed plate (133); the heat insulation structure (1312) is arranged on the inner end surface of the support frame (1311); and the control chip (1313) is arranged in the middle of the interior of the heat insulation structure (1312); The heat-insulating structure (1312) is provided with a protective plate layer (151), a waterproof and breathable layer (152), a thermal insulation layer (153), a through hole (154), and a sealing sleeve (155); the protective plate layer (151) is arranged on the inner end surface of the support frame (1311); the waterproof and breathable layer (152) is attached to the inner end surface of the protective plate layer (151); the thermal insulation layer (153) is arranged on the inner end surface of the waterproof and breathable layer (152); two through holes (154) are provided, and the through holes (154) are respectively arranged on the left and right sides of the thermal insulation layer (153); and the sealing sleeve (155) is clamped and installed in the through hole (154); The protective plate layer (151) is made of metal, the waterproof and breathable layer (152) is a new type of polymer waterproof material, and the thermal insulation layer (153) is made of polyurethane foam; The sealing sleeve (155) is made of rubber.

2. The device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing milling head according to claim 1, characterized in that: The detection structure (132) comprises a heat transfer plate (1321), a fixing groove (1322), a temperature sensor probe (1323), and a circuit (1324); the end surface of the heat transfer plate (1321) is provided with a fixing groove (1322), and the fixing groove (1322) is bolted to the end surface of the mounting seat (131) via bolts; five temperature sensor probes (1323) are provided, and the temperature sensor probes (1323) are arranged on the end surface of the heat transfer plate (1321); and the circuit (1324) connects the five temperature sensor probes (1323).

3. The device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing milling head according to claim 2, characterized in that: The end surface of the temperature sensor probe (1323) is provided with a connector (1325), and the connector (1325) is electrically connected to the circuit (1324).

4. The device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing milling head according to claim 3, characterized in that: The heat transfer plate (1321) is made of the same material, and the heat transfer plate (1321) made of copper has good thermal conductivity.

5. The device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing milling head according to claim 3 is characterized in that: The metal plate of the temperature sensor probe (1323) is in an arc shape.

6. The device for detecting the internal heat generation and temperature rise of a five-axis gantry milling AC swing milling head according to claim 3, characterized in that: The heat transfer plate (1321) is fixedly connected to the five temperature sensor probes (1323).

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