Thermal deformation compensation device for main shaft of machining center

Abstract

The utility model relates to the technical field of main shaft thermal deformation compensation devices, and discloses a machining center main shaft thermal deformation compensation device which comprises a shell, an output pipe is connected to the surface of the shell in a penetrating mode, a storage box is connected to one end of the output pipe in a penetrating mode, and a conveying pump is connected to the top of the storage box in a penetrating mode. One side of the storage box is fixedly connected with a refrigeration assembly, one side of the shell is provided with an induction assembly, the output end of the conveying pump is connected with a filtering assembly in a penetrating mode, the refrigeration assembly comprises a semiconductor refrigeration sheet fixedly connected to one side of the storage box, and the surface of the semiconductor refrigeration sheet is fixedly connected with a plurality of sets of cooling fins. According to the thermal deformation compensation device for the main shaft of the machining center, through the arrangement of the induction assembly and the refrigeration assembly, the effect of rapidly reducing the temperature of the main rotating shaft in time is achieved, heat generated by friction in the running process of the main shaft is reduced, the temperature of the main shaft is controlled to be kept within a certain range, and thermal deformation of the main shaft is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of spindle thermal deformation compensation devices, and in particular to a machining center spindle thermal deformation compensation device. Background Technology

[0002] A machining center spindle thermal deformation compensation device is used to solve the problem of thermal deformation caused by the spindle's temperature rise during long-term operation. When a machining center spindle rotates under high load, temperature changes inside or outside the spindle cause material expansion, which in turn affects machining accuracy. The goal of the thermal deformation compensation device is to monitor and correct the errors caused by temperature changes in the spindle in real time, ensuring high precision and stability in the machining process.

[0003] However, existing machining center spindle thermal deformation compensation devices are difficult to reduce the spindle temperature in a timely and rapid manner during use, causing the spindle to deform due to heat generated by friction during operation, resulting in errors. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a machining center spindle thermal deformation compensation device, which solves the problem mentioned in the background art that the existing machining center spindle thermal deformation compensation device is difficult to reduce the spindle temperature in a timely and rapid manner during use, resulting in the spindle deforming due to heat generated by friction during operation and causing errors.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a machining center spindle thermal deformation compensation device, comprising a housing, an output pipe connected through the surface of the housing, a storage box connected through one end of the output pipe, a delivery pump connected through the top of the storage box, a cooling component fixedly connected to one side of the storage box, a sensing component disposed on one side of the housing, a filter component connected through the output end of the delivery pump, the cooling component comprising a semiconductor cooling chip fixedly connected to one side of the storage box, and a plurality of heat sinks fixedly connected to the surface of the semiconductor cooling chip; the sensing component comprising three temperature sensors disposed on one side of the housing, one end of each temperature sensor electrically connected to an integrated controller via a power line; the filter component comprising a connecting sleeve connected through the output end of the delivery pump, a filter element fitted inside the connecting sleeve, and a sealing cap threadedly connected to one end of the connecting sleeve.

[0008] As a further embodiment of this utility model, an input pipe is connected through to the other side of the outer shell. The input pipe is connected through to one side of the sealing cover, and the input pipe serves to transport cooling oil.

[0009] As a further embodiment of this utility model, a main rotating shaft is rotatably connected inside the outer shell. A front radial bearing is sleeved at the bottom of the main rotating shaft, and a rear radial bearing is sleeved at the top of the main rotating shaft. The rear radial bearing serves to support the main rotating shaft and facilitate its rotation.

[0010] As a further embodiment of this utility model, a support box is fixedly connected to the bottom of the storage box, and two sets of cooling fans are provided on one side of the support box. The cooling fans help to accelerate heat dissipation.

[0011] As a further embodiment of this utility model, a connecting pipe is fixedly connected to the top of the outer shell, and a drive motor is threadedly connected to the top of the connecting pipe. The drive motor drives the main shaft to rotate.

[0012] As a further embodiment of this utility model, threaded holes are provided on the bottom of the drive motor and the top surface of the connecting pipe, and bolts are inserted through the threaded holes. The bolts serve to fix the installation.

[0013] As a further embodiment of this utility model, a support rod is fixedly connected to one side of the connecting pipe, and a support seat is rotatably connected to one end of the support rod. The support seat provides support.

[0014] (III) Beneficial Effects

[0015] This utility model provides a thermal deformation compensation device for machining center spindles, which has the following beneficial effects:

[0016] 1. This machining center spindle thermal deformation compensation device, through the setting of sensing and cooling components, uses a temperature sensor to detect the temperature at a corresponding location during use. When the temperature exceeds a set value, the temperature sensor sends a signal to the integrated controller, causing the integrated controller to control the semiconductor cooling chip and the delivery pump to start. The delivery pump draws out the cooling oil from the storage tank and delivers it between the spindle and the housing to cool the spindle and compensate for thermal deformation. At the same time, the output pipe inputs the heated cooling oil into the storage tank, where it is circulated and cooled by the semiconductor cooling chip. This achieves the effect of timely and rapid reduction of the spindle temperature, reducing the heat generated by friction during spindle operation, controlling the spindle temperature within a certain range, and avoiding spindle thermal deformation.

[0017] 2. The machining center spindle thermal deformation compensation device, through the setting of the filter component, can effectively prevent waste chips and impurities from entering the cooling oil during the rotation of the spindle. These waste chips and impurities are filtered and adsorbed by the filter element inside the connecting sleeve during the conveying process, thus preventing them from entering the housing and causing damage to the spindle. When replacement is needed, simply rotate the sealing cover to pull out and replace the filter element, thereby improving the service life of the machining center spindle thermal deformation compensation device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the refrigeration component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model.

[0022] In the diagram: 1. Outer casing; 2. Output pipe; 3. Storage box; 4. Delivery pump; 5. Refrigeration assembly; 501. Semiconductor cooling chip; 502. Heat sink; 6. Sensing assembly; 601. Temperature sensor; 602. Integrated controller; 7. Filter assembly; 701. Connecting sleeve; 702. Filter element; 703. Sealing cover; 8. Input pipe; 9. Main shaft; 10. Front radial bearing; 11. Rear radial bearing; 12. Support box; 13. Cooling fan; 14. Connecting pipe; 15. Drive motor; 16. Bolt; 17. Support rod; 18. Support base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a machining center spindle thermal deformation compensation device, including a housing 1, an output pipe 2 connected through the surface of the housing 1, a storage tank 3 connected through one end of the output pipe 2, a delivery pump 4 connected through the top of the storage tank 3, and a cooling component 5 fixedly connected to one side of the storage tank 3. Through the arrangement of the sensing component 6 and the cooling component 5, the device achieves the effect of timely and rapid reduction of the spindle temperature 9, reducing the heat generated by friction during spindle operation, controlling the spindle temperature within a certain range, and preventing spindle thermal deformation. The sensing component 6 is provided on one side of the housing 1, and a filter component 7 is connected through the output end of the delivery pump 4. The service life of the machining center spindle thermal deformation compensation device is improved by setting the filter assembly 7. The cooling assembly 5 includes a semiconductor cooling chip 501 fixedly connected to one side of the storage box 3. Several sets of heat sinks 502 are fixedly connected to the surface of the semiconductor cooling chip 501. The sensing assembly 6 includes three sets of temperature sensors 601 set on one side of the housing 1. One end of the temperature sensor 601 is electrically connected to an integrated controller 602 through a power line. The filter assembly 7 includes a connecting sleeve 701 that passes through and is connected to the output end of the delivery pump 4. A filter element 702 is sleeved inside the connecting sleeve 701. A sealing cap 703 is threaded to one end of the connecting sleeve 701.

[0025] An input pipe 8 is connected through to the other side of the outer casing 1. The input pipe 8 is connected through to one side of the sealing cover 703. The input pipe 8 serves to transport cooling oil.

[0026] The main shaft 9 is rotatably connected inside the outer casing 1. A front radial bearing 10 is sleeved at the bottom of the main shaft 9, and a rear radial bearing 11 is sleeved at the top of the main shaft 9. The rear radial bearing 11 serves to support the main shaft 9 and facilitate its rotation.

[0027] The bottom of the storage box 3 is fixedly connected to a support box 12. Two sets of cooling fans 13 are provided on one side of the support box 12. The cooling fans 13 help to speed up heat dissipation.

[0028] A connecting pipe 14 is fixedly connected to the top of the outer casing 1, and a drive motor 15 is threadedly connected to the top of the connecting pipe 14. The drive motor 15 drives the main rotating shaft 9 to rotate.

[0029] Threaded holes are provided on the bottom of the drive motor 15 and the top surface of the connecting pipe 14. Bolts 16 pass through the inside of the threaded holes, and the bolts 16 serve to fix the installation.

[0030] A support rod 17 is fixedly connected to one side of the connecting pipe 14, and a support seat 18 is rotatably connected to one end of the support rod 17. The support seat 18 provides support.

[0031] The model number of temperature sensor 601 is XC-T-PT-LW; the model number of integrated controller 602 is KS-350CT-I1. The above parameters and models can be selected according to the actual situation.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: During use, the temperature sensor 601 detects the temperature at the corresponding location. When the temperature exceeds the set value, the temperature sensor 601 sends a signal to the integrated controller 602, which causes the integrated controller 602 to control the semiconductor cooling chip 501 and the delivery pump 4 to start. The delivery pump 4 extracts the cooling oil from the storage tank 3.

[0034] The second step: The oil is then transported between the main shaft 9 and the outer casing 1 to cool the main shaft 9 and compensate for thermal deformation. At the same time, the output pipe 2 inputs the heated cooling oil into the storage tank 3 and uses the semiconductor cooling chip 501 for circulating cooling.

[0035] Third step: During use, when the main shaft 9 rotates, some waste and impurities are easily generated and enter the cooling oil. Then, during the conveying process, they pass through the connecting sleeve 701 and are filtered and adsorbed by the filter element 702 to intercept the waste and impurities and prevent them from entering the outer shell 1 and causing damage to the main shaft 9. When replacement is needed, simply rotate the sealing cover 703 and pull out the filter element 702 for replacement.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal deformation compensation device for a machining center spindle, comprising a housing (1), characterized in that: An output pipe (2) is connected through the surface of the outer shell (1). One end of the output pipe (2) is connected through to a storage tank (3). A delivery pump (4) is connected through to the top of the storage tank (3). A cooling component (5) is fixedly connected to one side of the storage tank (3). A sensing component (6) is provided on one side of the outer shell (1). A filter component (7) is connected through to the output end of the delivery pump (4). The cooling component (5) includes a semiconductor cooling chip (501) fixedly connected to one side of the storage box (3), and a number of heat sinks (502) are fixedly connected to the surface of the semiconductor cooling chip (501). The sensing component (6) includes three sets of temperature sensors (601) disposed on one side of the housing (1), and one end of the temperature sensor (601) is electrically connected to an integrated controller (602) via a power line. The filter assembly (7) includes a connecting sleeve (701) that is connected through to the output end of the delivery pump (4). A filter element (702) is fitted inside the connecting sleeve (701). A sealing cap (703) is threaded to one end of the connecting sleeve (701).

2. The machining center spindle thermal deformation compensation device according to claim 1, characterized in that: An input pipe (8) is connected through to the other side of the outer shell (1), and the input pipe (8) is connected through to one side of the sealing cover (703).

3. The machining center spindle thermal deformation compensation device according to claim 1, characterized in that: The outer casing (1) is rotatably connected to a main shaft (9), the bottom of the main shaft (9) is fitted with a front radial bearing (10), and the top of the main shaft (9) is fitted with a rear radial bearing (11).

4. The machining center spindle thermal deformation compensation device according to claim 1, characterized in that: The bottom of the storage box (3) is fixedly connected to a support box (12), and two sets of cooling fans (13) are provided on one side of the support box (12).

5. The machining center spindle thermal deformation compensation device according to claim 1, characterized in that: A connecting pipe (14) is fixedly connected to the top of the outer shell (1), and a drive motor (15) is threadedly connected to the top of the connecting pipe (14).

6. The machining center spindle thermal deformation compensation device according to claim 5, characterized in that: The bottom of the drive motor (15) and the top surface of the connecting pipe (14) are both provided with threaded holes, and bolts (16) pass through the inside of the threaded holes.

7. The machining center spindle thermal deformation compensation device according to claim 5, characterized in that: A support rod (17) is fixedly connected to one side of the connecting pipe (14), and a support seat (18) is rotatably connected to one end of the support rod (17).

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