Machine tool brake device and turn-milling all-in-one machine

Abstract

The utility model discloses a machine tool brake device and a turning and milling all-in-one machine, the machine tool brake device comprises a machine base, the machine base is provided with a main shaft and a driving assembly driving the main shaft to rotate, and the side wall of the machine base is provided with a containing groove; the brake disc is fixedly connected to one end of the main shaft and is arranged in the accommodating groove; the braking assembly is connected to the machine base and arranged in the containing groove, the braking assembly comprises an installation support and a driving air cylinder, the installation support is adjustably installed on the groove wall of the containing groove, the driving air cylinder is installed on the installation support, and a driving shaft of the driving air cylinder can move in the thickness direction of the brake disc so as to abut against the brake disc and brake the main shaft. The driving air cylinder is arranged in the containing groove, the overall structure is compact, and the occupied space is small; the adjustability of the mounting bracket enables the position of the driving cylinder to adjust the braking effect as required to adapt to different brake disc specifications, and the universality is high; in addition, the pneumatic driving mode does not need an external power supply, effective braking can still be achieved when the power supply is lost, and the reliability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a machine tool braking device, and a turning and milling machine with a machine tool braking device. Background Technology

[0002] In modern industrial production, machine tools, as fundamental and crucial processing equipment, are widely used in many fields such as machinery manufacturing, automotive industry, and aerospace. During the operation of a machine tool, precise control and safe braking of the spindle are important aspects to ensure processing accuracy, stable equipment operation, and operator safety, and the spindle braking device is the core component for achieving this function.

[0003] Currently, the existing rotary shaft braking devices on the market mainly have the following problems:

[0004] First, from a structural design perspective, most rotary shaft brake devices are overly complex, typically containing numerous precision components and intricate mechanical structures. This not only increases the difficulty of the manufacturing process but also demands extremely high precision in the machining of each component. This leads to extended manufacturing cycles and significantly increased production costs, adding to the burden on companies and hindering the widespread market application of the product.

[0005] Secondly, regarding the power source, most existing spindle braking devices rely on external electric drive sources to achieve braking functions. While this can meet braking requirements to some extent, it poses serious safety hazards. In actual production environments, due to various unforeseen factors such as power supply failures and electrical system malfunctions, external power may be lost. Once the external power is interrupted, these braking devices relying on external electric drive sources will malfunction and fail to brake the spindle in a timely manner. Losing braking control of a high-speed rotating spindle can lead to a series of serious consequences, such as damage to machine tool components, scrapping of workpieces, and even threats to the lives of operators, posing a significant threat to the safe operation of machine tools.

[0006] Furthermore, while some existing braking devices have been improved in certain aspects, they still lack flexibility and adaptability in terms of installation. For example, the brake components of some devices have fixed installation positions and cannot be adjusted according to the specific structure and processing requirements of different machine tools, resulting in poor versatility and difficulty in meeting diverse production needs. Utility Model Content

[0007] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a machine tool braking device, which adopts a pneumatic brake and has an adjustable installation position of the drive cylinder. It has a simple structure, reduces the number of parts and complex designs, lowers costs, and requires no external power supply. It can still reliably brake when the power is lost, eliminating safety hazards. It has good versatility and adaptability, ensuring the safe and efficient operation of the machine tool.

[0008] This utility model also proposes a turning and milling integrated machine with the above-mentioned machine tool braking device.

[0009] The machine tool braking device according to this utility model includes:

[0010] A machine base is provided with a spindle and a drive assembly for driving the spindle to rotate, and a receiving groove is provided on the side wall of the machine base;

[0011] The brake disc is fixedly connected to one end of the main shaft and placed in the receiving groove;

[0012] A braking assembly is connected to the base and placed in the receiving groove. The braking assembly includes a mounting bracket and a drive cylinder. The mounting bracket is adjustablely mounted on the groove wall of the receiving groove. The drive cylinder is mounted on the mounting bracket. The drive shaft of the drive cylinder can move along the thickness direction of the brake disc to press against the brake disc and stop the main shaft.

[0013] The machine tool braking device according to this utility model has at least the following beneficial effects: a receiving groove is opened on the side wall of the machine base, the brake disc is connected to the spindle and placed in the receiving groove, the mounting bracket of the braking component is adjustablely installed on the groove wall of the receiving groove, the drive cylinder is installed on the mounting bracket and the drive shaft can move along the thickness direction of the brake disc to press against the brake disc and stop the spindle, making the overall structure compact, occupying little space, and facilitating the overall design and installation of the machine tool; at the same time, the adjustability of the mounting bracket allows the position of the drive cylinder to be adjusted as needed to adapt to different spindle and brake disc specifications, with strong versatility; in addition, the pneumatic drive method does not require an external power supply, and can still effectively brake when the power is lost, ensuring the safe operation of the machine tool and improving the reliability of the device.

[0014] According to some embodiments of the present invention, the machine tool braking device has a drive cylinder located on the outer periphery of the brake disc, and the contact area with the brake disc is adjusted by adjusting the mounting position of the mounting bracket.

[0015] According to some embodiments of the present invention, the machine tool braking device is rotatably and adjustablely mounted on the wall of the receiving groove.

[0016] According to some embodiments of the present invention, the machine tool braking device is provided with an arc-shaped through groove, and the groove wall of the receiving groove is provided with a threaded hole. The mounting bracket and the machine base are fixed by screws located in the arc-shaped through groove and the threaded hole.

[0017] According to some embodiments of the present invention, the machine tool braking device includes a driving cylinder comprising a fixed seat and a movable seat. The fixed seat is mounted on the mounting bracket. A slot is provided between the movable seat and the fixed seat to accommodate a portion of the brake disc extending into it. The movable seat is capable of moving toward one side of the fixed seat to press against the end face of the brake disc.

[0018] According to some embodiments of the present invention, the machine tool braking device has a rotating component fixedly installed on the spindle, and the brake disc is fixedly installed on the rotating component.

[0019] According to some embodiments of the present invention, the machine tool braking device includes a drive assembly comprising a drive motor and a driven wheel, the intermediate component being the driven wheel, and the drive motor connecting to and driving the driven wheel and the spindle to rotate together.

[0020] According to some embodiments of the present invention, the machine tool braking device includes a drive assembly that further includes a drive wheel and a transmission belt. The drive shaft of the drive motor is fixedly connected to the drive wheel, and the two ends of the transmission belt are respectively wound around the drive wheel and the driven wheel.

[0021] According to some embodiments of the present invention, the machine tool braking device is wherein both the driving wheel and the driven wheel are synchronous pulleys, and the transmission belt is a synchronous belt.

[0022] The milling and turning machine according to this utility model includes the machine tool braking device described in this utility model.

[0023] The milling and turning machine according to this utility model has at least the following beneficial effects: During the milling and turning process, the reliable braking device can stop the spindle rotation in a timely and accurate manner, ensuring the smooth progress of the machining operation and avoiding safety accidents and machining errors caused by untimely or unstable braking. It can significantly improve the overall performance and safety of the milling and turning machine. At the same time, the simple structure and low maintenance requirements of the braking device also help to reduce the operating cost of the milling and turning machine and improve production efficiency and economic benefits.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the structure of the machine tool braking device according to an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the mounting bracket for the machine tool braking device according to an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the drive cylinder of the machine tool braking device according to an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram showing the connection between the spindle and the drive assembly of the machine tool braking device according to an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] Machine base 100; receiving slot 101; main shaft 110; drive assembly 120; drive motor 121; drive pulley 122; transmission belt 123; driven pulley 124;

[0032] Brake disc 200;

[0033] Braking assembly 300; mounting bracket 310; arc-shaped through groove 3101; drive cylinder 320; slot 3201; fixed seat 321; movable seat 322. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] In modern industrial production, machine tools, as fundamental and crucial processing equipment, are widely used in many fields such as machinery manufacturing, automotive industry, and aerospace. During the operation of a machine tool, precise control and safe braking of the spindle are important aspects to ensure processing accuracy, stable equipment operation, and operator safety, and the spindle braking device is the core component for achieving this function.

[0040] Currently, the existing rotary shaft braking devices on the market mainly have the following problems:

[0041] First, from a structural design perspective, most rotary shaft brake devices are overly complex, typically containing numerous precision components and intricate mechanical structures. This not only increases the difficulty of the manufacturing process but also demands extremely high precision in the machining of each component. This leads to extended manufacturing cycles and significantly increased production costs, adding to the burden on companies and hindering the widespread market application of the product.

[0042] Secondly, regarding the power source, most existing spindle braking devices rely on external electric drive sources to achieve braking functions. While this can meet braking requirements to some extent, it poses serious safety hazards. In actual production environments, due to various unforeseen factors such as power supply failures and electrical system malfunctions, external power may be lost. Once the external power is interrupted, these braking devices relying on external electric drive sources will malfunction and fail to brake the spindle in a timely manner. Losing braking control of a high-speed rotating spindle can lead to a series of serious consequences, such as damage to machine tool components, scrapping of workpieces, and even threats to the lives of operators, posing a significant threat to the safe operation of machine tools.

[0043] Furthermore, while some existing braking devices have been improved in certain aspects, they still lack flexibility and adaptability in terms of installation. For example, the brake components of some devices have fixed installation positions and cannot be adjusted according to the specific structure and processing requirements of different machine tools, resulting in poor versatility and difficulty in meeting diverse production needs.

[0044] Therefore, such as Figures 1 to 4 As shown, this invention presents a machine tool braking device, comprising a machine base 100, a spindle 110 disposed on the machine base 100, a drive assembly 120, a brake disc 200 fixedly connected to the spindle 110, and a braking assembly 300 connected to the machine base 100. The drive assembly 120 drives the spindle 110 to rotate. A receiving groove 101 is provided on the side wall of the machine base 100. The brake disc 200 is fixedly connected to one end of the spindle 110 and placed within the receiving groove 101. The braking assembly 300 is placed within the receiving groove 101. Specifically, the braking assembly 300 includes a mounting bracket 310 and a drive cylinder 320. The mounting bracket 310 is adjustablely mounted on the groove wall of the receiving groove 101. The drive cylinder 320 is mounted on the mounting bracket 310. The drive shaft of the drive cylinder 320 can move along the thickness direction of the brake disc 200 to press against the brake disc 200 and stop the spindle 110. It should be noted that the machine base 100 has a receiving groove 101 on its side wall. The brake disc 200 is connected to the spindle 110 and placed in the receiving groove 101. The mounting bracket 310 of the braking assembly 300 is adjustablely mounted on the groove wall of the receiving groove 101. The drive cylinder 320 is mounted on the mounting bracket 310 and the drive shaft can move along the thickness direction of the brake disc 200 to press against the brake disc 200 and stop the spindle 110. This makes the overall structure compact, occupies little space, and facilitates the overall design and installation of the machine tool. At the same time, the adjustability of the mounting bracket 310 allows the position of the drive cylinder 320 to be adjusted as needed to adapt to different spindle 110 and brake disc 200 specifications, which is highly versatile. In addition, the pneumatic drive method does not require an external power supply and can still effectively brake when the power is lost, ensuring the safe operation of the machine tool and improving the reliability of the device.

[0045] In some embodiments of this invention, the drive cylinder 320 is located on the outer periphery of the brake disc 200. By adjusting the mounting position of the mounting bracket 310, the contact area with the brake disc 200 can be adjusted, allowing the braking force to be flexibly adjusted according to actual needs. Under different processing conditions, the required braking force of the spindle 110 varies. By reasonably adjusting the contact area, the braking device can ensure effective braking while avoiding excessive wear on the brake disc 200 and spindle 110 due to excessive braking force, thus extending the service life of components and improving the economy and stability of the equipment. Optionally, in some embodiments of this invention, the mounting bracket 310 is rotatably adjustable and mounted on the groove wall of the receiving groove 101, further enhancing the flexibility and adaptability of the braking device. In practical applications, the layout and working requirements of machine tools may vary. By rotating the mounting bracket 310, the relative position and angle between the drive cylinder 320 and the brake disc 200 can be adjusted more conveniently to achieve the best braking effect. For example, when the internal space of the machine tool is limited or other interference factors exist, rotating the mounting bracket 310 can cleverly avoid obstacles, ensuring the normal installation and operation of the braking device. Specifically, refer to... Figure 1 and Figure 2 In some embodiments of this utility model, the mounting bracket 310 is provided with an arc-shaped through groove 3101, and the groove wall of the receiving groove 101 is provided with a threaded hole. The mounting bracket 310 and the machine base 100 are fixed by screws located in the arc-shaped through groove 3101 and the threaded hole. The arc-shaped through groove 3101 provides flexible adjustment space within a certain angle range, while the screw fixing ensures stability and reliability after adjustment. This not only facilitates the rotational adjustment of the mounting bracket 310 but also allows for secure fixing after adjustment to a suitable position. During long-term operation of the machine tool, it effectively prevents the mounting bracket 310 from loosening or shifting, thereby ensuring that the braking device always maintains a good working condition.

[0046] Refer to Figure 1 and Figure 3In some embodiments of this utility model, the drive cylinder 320 includes a fixed seat 321 and a movable seat 322. The fixed seat 321 is mounted on the mounting bracket 310. A slot 3201 is provided between the movable seat 322 and the fixed seat 321 to accommodate a portion of the brake disc 200 extending into it. The movable seat 322 can move towards one side of the fixed seat 321 to press against the end face of the brake disc 200, making the fit between the drive cylinder 320 and the brake disc 200 tighter and more reasonable. It is understood that the design of the slot 3201 allows the brake disc 200 to partially extend into it, increasing the contact area and enabling the braking force to be distributed more evenly on the brake disc 200, improving the consistency and stability of the braking effect. At the same time, the movable seat 322 ensures the accurate application of braking force, further improving the performance and reliability of the braking device. It is readily understood that the movable seat 322 is fixedly connected to the drive shaft of the drive cylinder 320. For example, the drive cylinder 320 is a high-pressure clamping cylinder.

[0047] Furthermore, in some embodiments of this utility model, a transfer component is fixedly installed on the spindle 110, and the brake disc 200 is fixedly installed on the transfer component, indirectly connecting the brake disc 200 and the spindle 110. The transfer component facilitates the installation, disassembly, and maintenance of the brake disc 200 without direct operation of the spindle 110. This reduces the impact on the spindle 110's precision, improving machining accuracy, and also reduces the frequency of spindle 110 maintenance, thus lowering costs. On the other hand, the transfer component can fine-tune the position and angle of the brake disc 200 according to actual needs, better adapting to different braking requirements and improving the versatility and flexibility of the braking device. Specifically, refer to... Figure 1 and Figure 4In some embodiments of this utility model, the drive assembly 120 includes a drive motor 121 and a driven wheel 124, with the driven wheel 124 serving as the intermediate transfer element. The drive motor 121 connects to and drives the driven wheel 124 and the spindle 110 to rotate together. This effectively transmits the power of the drive motor 121 to the spindle 110, achieving stable rotation of the spindle 110. Simultaneously, the driven wheel 124, as part of the intermediate transfer element, facilitates the installation and positioning of the brake disc 200, making the entire drive and braking system more compact and coordinated. Furthermore, the drive assembly 120 includes a drive wheel 122 and a transmission belt 123. The drive shaft of the drive motor 121 is fixedly connected to the drive wheel 122, and the two ends of the transmission belt 123 are respectively wound around the drive wheel 122 and the driven wheel 124. This optimizes the power transmission process, provides buffering and shock absorption, reduces impact and vibration during power transmission, and improves the smoothness of machine tool operation. Optionally, both the driving pulley 122 and the driven pulley 124 are synchronous pulleys, and the transmission belt 123 is a synchronous belt. It should be noted that the combined use of synchronous pulleys and a synchronous belt ensures precise synchronous transmission between the driving pulley 122 and the driven pulley 124, avoiding slippage that may occur in traditional belt drives. This is crucial for the machining accuracy of the machine tool, as the speed stability of the spindle 110 directly affects the dimensional accuracy and surface quality of the machined parts. Synchronous transmission ensures that the spindle 110 maintains a stable speed during long-term operation, thereby improving the machining quality and consistency of the product and meeting the requirements of high-precision machining.

[0048] The milling and turning machine according to an embodiment of the present invention includes a machine tool braking device according to an embodiment of the present invention. During milling and turning, a reliable braking device can stop the spindle 110 rotation in a timely and accurate manner, ensuring smooth machining operations and avoiding safety accidents and machining errors caused by untimely or unstable braking. This significantly improves the overall performance and safety of the milling and turning machine. Simultaneously, the simple structure and low maintenance requirements of the braking device also help reduce the operating costs of the milling and turning machine, improving production efficiency and economic benefits.

[0049] Other components and operations of the milling and turning machine according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A machine tool braking device, characterized in that, include: A machine base is provided with a spindle and a drive assembly for driving the spindle to rotate, and a receiving groove is provided on the side wall of the machine base; The brake disc is fixedly connected to one end of the main shaft and placed in the receiving groove; A braking assembly is connected to the base and placed in the receiving groove. The braking assembly includes a mounting bracket and a drive cylinder. The mounting bracket is adjustablely mounted on the groove wall of the receiving groove. The drive cylinder is mounted on the mounting bracket. The drive shaft of the drive cylinder can move along the thickness direction of the brake disc to press against the brake disc and stop the main shaft.

2. The machine tool braking device according to claim 1, characterized in that: The drive cylinder is located on the outer periphery of the brake disc, and the contact area with the brake disc is adjusted by adjusting the installation position of the mounting bracket.

3. The machine tool braking device according to claim 1 or 2, characterized in that: The mounting bracket is rotatably and adjustablely mounted on the wall of the receiving groove.

4. The machine tool braking device according to claim 3, characterized in that: The mounting bracket is provided with an arc-shaped through groove, and the groove wall of the receiving groove is provided with a threaded hole. The mounting bracket and the base are fixed by screws located in the arc-shaped through groove and the threaded hole.

5. The machine tool braking device according to claim 1 or 4, characterized in that: The drive cylinder includes a fixed seat and a movable seat. The fixed seat is mounted on the mounting bracket. A slot is provided between the movable seat and the fixed seat to accommodate a portion of the brake disc. The movable seat can move toward one side of the fixed seat to press against the end face of the brake disc.

6. The machine tool braking device according to claim 1, characterized in that: The main shaft is fixedly mounted with a transfer component, and the brake disc is fixedly mounted on the transfer component.

7. The machine tool braking device according to claim 6, characterized in that: The drive assembly includes a drive motor and a driven wheel, the intermediate component is the driven wheel, and the drive motor connects to and drives the driven wheel and the main shaft to rotate together.

8. The machine tool braking device according to claim 7, characterized in that: The drive assembly also includes a drive wheel and a transmission belt. The drive shaft of the drive motor is fixedly connected to the drive wheel, and the two ends of the transmission belt are respectively wound around the drive wheel and the driven wheel.

9. The machine tool braking device according to claim 8, characterized in that: Both the driving wheel and the driven wheel are synchronous pulleys, and the transmission belt is a synchronous belt.

10. A turning and milling machine, characterized in that: Includes the machine tool braking device as described in any one of claims 1 to 9.

Images