A five-axis machining center thermal deformation compensation device

Abstract

The utility model belongs to five -axis processing technical field especially is a five -axis machining center thermal deformation compensation device, including first work board, both ends of first work board inner wall all are fixedly installed with first electric push rod, the output of first electric push rod is provided with support plate. Through the third electric push rod work of setting, make second clamping plate movement to workpiece clamping, when workpiece processing produces deformation because of temperature is too high, through the temperature of temperature sensor detection, control first electric push rod and second electric push rod work, make support plate and second work board move, adjust workpiece space position, carry out reverse compensation to thermal deformation error, make workpiece processing point return to theory coordinate, through the light of laser pen irradiation on the coordinate axis card paper, clearly see the amount of thermal deformation and the process of compensation, through the second motor work of setting, make first clamping plate rotation to laser pen dismount, install contrarily, it is easy to operate, reduce the use difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of five-axis machining technology, specifically relating to a thermal deformation compensation device for a five-axis machining center. Background Technology

[0002] Five-axis machining is an advanced mode of CNC machine tool processing, representing high precision, high efficiency, and high complexity machining capabilities. During some five-axis machining operations, workpieces may deform due to overheating, causing a shift in the machining position, and the compensation process cannot be visually observed. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a thermal deformation compensation device for a five-axis machining center, which solves the problem that some workpieces undergo deformation due to overheating during machining, resulting in a shift in the machining position, and the compensation process cannot be visually observed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thermal deformation compensation device for a five-axis machining center, comprising a first working plate, with a first electric push rod fixedly installed at both ends of the inner wall of the first working plate, a support plate provided at the output end of the first electric push rod, a second electric push rod fixedly installed on both sides of the inner wall of the support plate, a second working plate provided at the output end of the second electric push rod, a first connecting plate fixedly installed at both ends of the top of the second working plate, a third electric push rod fixedly installed on the inner side of the first connecting plate, a second clamping plate provided at the output end of the third electric push rod, a temperature sensor fixedly installed inside the second clamping plate, coordinate axis clips fixedly installed around the top of the first working plate, a second motor fixedly installed around the top of the second working plate, a first rotating shaft provided at the output end of the second motor, a main gear fixedly installed on the surface of the first rotating shaft, a secondary gear meshing with one side of the main gear, a connecting rod fixedly installed inside the secondary gear, a first clamping plate fixedly installed on one side of the connecting rod and the surface of the first rotating shaft, and a laser pointer provided on the inner side of the first clamping plate.

[0005] Preferably, ventilation plates are fixedly installed on both sides of the top of the second working plate, a first motor is fixedly installed on the outer side of the ventilation plate, a second rotating shaft is provided at the output end of the first motor, and fan blades are fixedly installed on the surface of the second rotating shaft.

[0006] Preferably, the support plate is located inside the first working plate and is slidably connected to the first working plate, and the bottom of the second working plate is located inside the support plate and is slidably connected to the support plate.

[0007] Preferably, the laser pointer is located at the four opposite corners of the second working board, and the laser pointer is located above the coordinate axis card.

[0008] Preferably, the first clamping plate is located inside the second working plate, and the first clamping plate is rotatably connected to the second working plate.

[0009] Preferably, the second clamping plate is located on top of the second working plate, and the second clamping plate is slidably connected to the second working plate.

[0010] Preferably, the temperature sensor is electrically connected to the first electric push rod and the second electric push rod, the fan blade is located inside the ventilation plate, and the fan blade is rotatably connected to the ventilation plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The third electric push rod moves the second clamping plate to clamp the workpiece. When the workpiece deforms due to excessive temperature during processing, the temperature sensor detects the temperature and controls the first and second electric push rods to move the support plate and the second working plate left and right, adjusting the workpiece's spatial position and compensating for thermal deformation errors. This allows the workpiece's processing point to return to its theoretical coordinates. The amount of thermal deformation and the compensation process can be clearly observed by shining a laser pointer onto the coordinate axis card. The second motor rotates the first clamping plate to remove the laser pointer, and vice versa. The operation is simple and reduces the difficulty of use. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a first three-dimensional structural diagram of the present invention; Figure 2 This is a second three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the main gear of this utility model; Figure 4 This is an enlarged view of utility model A.

[0013] In the diagram: 1. First working plate; 2. Second working plate; 3. First electric push rod; 4. First clamping plate; 5. First connecting plate; 6. Ventilation plate; 7. Coordinate axis card; 8. First motor; 9. Second motor; 10. Support plate; 11. Second electric push rod; 12. Connecting rod; 13. Secondary gear; 14. Main gear; 15. First rotating shaft; 16. Laser pointer; 17. Fan blade; 18. Temperature sensor; 19. Second clamping plate; 20. Third electric push rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides the following technical solution: a thermal deformation compensation device for a five-axis machining center, comprising a first working plate 1, with a first electric push rod 3 fixedly installed at both ends of the inner wall of the first working plate 1, a support plate 10 provided at the output end of the first electric push rod 3, a second electric push rod 11 fixedly installed on both sides of the inner wall of the support plate 10, a second working plate 2 provided at the output end of the second electric push rod 11, a first connecting plate 5 fixedly installed at both ends of the top of the second working plate 2, a third electric push rod 20 fixedly installed on the inner side of the first connecting plate 5, and a second clamping plate 1 provided at the output end of the third electric push rod 20. 9. A temperature sensor 18 is fixedly installed inside the second clamping plate 19. Coordinate axis card 7 is fixedly installed around the top of the first working plate 1. A second motor 9 is fixedly installed around the top of the second working plate 2. A first rotating shaft 15 is provided at the output end of the second motor 9. A main gear 14 is fixedly installed on the surface of the first rotating shaft 15. A secondary gear 13 is meshed with one side of the main gear 14. A connecting rod 12 is fixedly installed inside the secondary gear 13. A first clamping plate 4 is fixedly installed on one side of the surface of the connecting rod 12 and the first rotating shaft 15. A laser pointer 16 is provided on the inner side of the first clamping plate 4.

[0016] In a specific embodiment of this utility model, the operation of the third electric push rod 20 causes the second clamping plate 19 to move and clamp the workpiece being processed. During the processing, the workpiece will undergo thermal expansion and deformation due to cutting heat. The temperature detected by the temperature sensor 18 controls the operation of the first electric push rod 3 and the second electric push rod 11, causing the support plate 10 and the second working plate 2 to move left and right, adjusting the spatial position of the workpiece, and performing reverse compensation for thermal deformation error, so that the workpiece processing point returns to the theoretical coordinates. The operator can clearly see the amount of thermal deformation and the compensation process by shining a laser pointer 16 on the surface of the coordinate axis card 7, based on the equipment displacement, thus improving the convenience of use. The operation of the second motor 9 causes the first rotating shaft 15 to drive the main gear 14 to rotate, which in turn drives the connecting rod 12 to rotate, moving the first clamping plate 4 away from the laser pointer 16 for disassembly, and vice versa for installation. The operation is simple and reduces the difficulty of using this equipment.

[0017] In this embodiment: the first motor 8 is set to work, causing the second rotating shaft to drive the fan blade 17 to rotate, blowing air to cool the workpiece and reduce the error of thermal deformation.

[0018] The working principle and usage process of this utility model are as follows: After installation, the third electric push rod 20 moves the second clamping plate 19 to clamp the workpiece. During processing, the workpiece undergoes thermal expansion and deformation due to cutting heat. The temperature detected by the temperature sensor 18 controls the first electric push rod 3 and the second electric push rod 11 to move the support plate 10 and the second working plate 2 left and right, adjusting the workpiece's spatial position and compensating for thermal deformation errors. This allows the workpiece's processing point to return to its theoretical coordinates. The operator uses a laser pointer 16 to illuminate the surface of the coordinate axis card 7, clearly observing the amount of thermal deformation and the compensation process based on the equipment's displacement, thus improving ease of use. The second motor 9 drives the first rotating shaft 15 to rotate the main gear. The wheel 14 rotates, causing the secondary gear 13 to drive the connecting rod 12 to rotate, rotating one end of the first clamping plate 4 away from the laser pointer 16 for disassembly, and vice versa for installation. The operation is simple, reducing the difficulty of using this equipment. The first motor 8 is set to work, causing the second rotating shaft to drive the fan blade 17 to rotate, blowing air to cool the workpiece and reducing the error of thermal deformation. The PLC control system has a pre-stored model of the correspondence between workpiece temperature and thermal expansion displacement. The system receives the signal from the temperature sensor (18), queries the model to calculate the required compensation amount, and then drives the first electric push rod (3) and the second electric push rod (11) to move the corresponding distance. All electrical equipment in this device is powered by an external power supply. The motors, electric push rods, etc. in this device are all controlled by the PLC controller system.

[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermal deformation compensation device for a five-axis machining center, comprising a first working plate (1), characterized in that: A first electric push rod (3) is fixedly installed at both ends of the inner wall of the first working plate (1). A support plate (10) is provided at the output end of the first electric push rod (3). A second electric push rod (11) is fixedly installed on both sides of the inner wall of the support plate (10). A second working plate (2) is provided at the output end of the second electric push rod (11). A first connecting plate (5) is fixedly installed at both ends of the top of the second working plate (2). A third electric push rod (20) is fixedly installed on the inner side of the first connecting plate (5). A second clamping plate (19) is provided at the output end of the third electric push rod (20). A temperature sensor is fixedly installed inside the second clamping plate (19). 18) Coordinate axis card paper (7) is fixedly installed on all four sides of the top of the first working plate (1), and a second motor (9) is fixedly installed on all four sides of the top of the second working plate (2). A first rotating shaft (15) is provided at the output end of the second motor (9). A main gear (14) is fixedly installed on the surface of the first rotating shaft (15). A secondary gear (13) is meshed on one side of the main gear (14). A connecting rod (12) is fixedly installed inside the secondary gear (13). A first clamping plate (4) is fixedly installed on one side of the surface of the connecting rod (12) and the first rotating shaft (15). A laser pen (16) is provided on the inner side of the first clamping plate (4).

2. The thermal deformation compensation device for a five-axis machining center according to claim 1, characterized in that: Ventilation plates (6) are fixedly installed on both sides of the top of the second working plate (2). A first motor (8) is fixedly installed on the outside of the ventilation plate (6). A second rotating shaft is provided at the output end of the first motor (8). Fan blades (17) are fixedly installed on the surface of the second rotating shaft.

3. The thermal deformation compensation device for a five-axis machining center according to claim 1, characterized in that: The support plate (10) is located inside the first working plate (1) and is slidably connected to the first working plate (1). The bottom of the second working plate (2) is located inside the support plate (10) and is slidably connected to the support plate (10).

4. The thermal deformation compensation device for a five-axis machining center according to claim 1, characterized in that: The laser pointer (16) is located at the four opposite corners of the second working board (2), and the laser pointer (16) is located above the coordinate axis card (7).

5. The thermal deformation compensation device for a five-axis machining center according to claim 1, characterized in that: The first clamping plate (4) is located inside the second working plate (2), and the first clamping plate (4) is rotatably connected to the second working plate (2).

6. The thermal deformation compensation device for a five-axis machining center according to claim 1, characterized in that: The second clamping plate (19) is located on top of the second working plate (2), and the second clamping plate (19) is slidably connected to the second working plate (2).

7. A thermal deformation compensation device for a five-axis machining center according to claim 2, characterized in that: The temperature sensor (18) is electrically connected to the first electric push rod (3) and the second electric push rod (11). The fan blade (17) is located inside the ventilation plate (6) and is rotatably connected to the ventilation plate (6).

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