Rotating device, slewing head, rotary table and machine tool

Abstract

This utility model relates to the field of machine tool technology, and provides a rotating device, a swivel head, a turntable, and a machine tool. The rotating device includes a base, a rotating body, a braking mechanism, and a detection device. The braking mechanism is located between the base and the rotating body and includes a brake cylinder, a brake piston, and a brake disc. The detection device includes a sensor, a sensing plate, an adjusting bracket, and an adjusting mechanism. One of the sensor and the sensing plate is fixed to the brake piston, and the other is fixed to the adjusting bracket. The adjusting mechanism is used to adjust the position of the adjusting bracket in the direction of movement of the brake piston. This rotating device integrates a detection device, which can sense and send a detection signal indicating that the brake has been fully released during braking. Therefore, it has advantages such as stable and reliable detection results, simple structure, low cost, and easy and precise adjustment of the sensor installation position.

Description

Technical Field

[0001] This application relates to the field of machine tool technology, specifically to a rotating device, a swivel head, a turntable, and a machine tool. Background Technology

[0002] Machine tools, as core equipment in industrial manufacturing, come in a wide variety of types, but they all basically include rotating parts. The operation of rotating parts requires corresponding braking mechanisms to brake them in a timely manner according to control commands.

[0003] For braking mechanisms, in addition to timely braking, it is also necessary to ensure that the brakes are fully released when braking is not required. Currently, most industry practices use methods such as spring preload or electronic calibration to adjust the precise installation position of the sensors used to detect brake release. However, these adjustment methods have drawbacks such as being labor-intensive, requiring large spaces, or being costly.

[0004] In relevant literature, Slovenian patent document SU2402020U1 discloses a device for adjusting the desired position of a telemetry sensor clamped in a machine tool spindle. However, the device in this technical solution cannot be used to detect whether the brake mechanism has been fully released, nor can it adjust the precise installation position of the sensor used to detect whether the brake has been fully released. Utility Model Content

[0005] To address one of the existing technical problems, this application provides a rotating device, a swing head, a turntable, and a machine tool. The rotating device integrates a detection device, which has the advantages of stable and reliable detection results, simple structure, relatively low cost, and easy and precise adjustment of the sensor installation position.

[0006] A first aspect of this application provides a rotating device. The rotating device includes a base and a rotating body disposed within the base, and further includes:

[0007] A braking mechanism is provided between the base and the rotating body. The braking mechanism includes a brake cylinder provided in the base, a brake piston provided in the brake cylinder, and a brake disc provided on the rotating body. The brake piston and the brake disc cooperate for braking.

[0008] The detection device includes a sensor, a sensing plate, an adjusting bracket, and an adjusting mechanism. The sensor and the sensing plate are arranged opposite to each other. The adjusting bracket is mounted on a base. One of the sensor and the sensing plate is fixed to the brake piston, and the other is fixed to the adjusting bracket. The adjusting mechanism is used to adjust the position of the adjusting bracket in the direction of movement of the brake piston.

[0009] In one embodiment of the rotating device, the detection device further includes a bracket mounting base, an adjusting bracket is mounted on the base via the bracket mounting base, a sensor is mounted on the adjusting bracket, and a sensing plate is fixed on the brake piston.

[0010] In one embodiment of the rotating device, the adjusting bracket has a guide portion that cooperates with the bracket mounting seat to cause the adjusting bracket to move along the direction of movement of the brake piston under the action of the adjusting mechanism.

[0011] In one embodiment of the rotating device, the adjusting bracket further includes a sensor mounting part, which is fixedly connected to the guide part or the two are an integral structure. The sensor is fixedly connected to the sensor mounting part. The adjusting mechanism includes at least two spaced adjusting screws. The bracket mounting base is provided with screw holes that are adapted to the adjusting screws. The adjusting bracket is fixedly connected to the bracket mounting base by the adjusting screws.

[0012] In one embodiment of the rotating device, the braking mechanism further includes an elastic element and a first friction plate. The elastic element has a fixed end and a free end. The fixed end abuts against the base, and the free end abuts against the brake piston. The first friction plate is fixed to the brake piston and located between the brake piston and the brake disc.

[0013] The brake piston can switch between a first state and a second state. In the first state, the brake piston squeezes the brake disc through the first friction pad; in the second state, the brake piston separates from the brake disc through the first friction pad.

[0014] In one embodiment of the rotating device, the elastic element is disposed in the brake cylinder and located on one side of the brake piston. The cylinder body of the brake cylinder is provided with multiple oil holes, which are connected to the other side of the brake piston through the brake oil circuit. The brake piston can move relative to the brake cylinder when the brake oil circuit supplies oil.

[0015] A second friction plate is provided between the base and the brake disc, and the second friction plate is fixed on the base.

[0016] In one embodiment of the rotating device, the sensor is a position sensor and has a sensing end. In a second state, the distance between the sensing end and the sensing plate is within the measurement range of the sensor.

[0017] Another aspect of the embodiments of this application provides a swing head, which includes a main shaft and a swing head base. The swing head base has an axis around which the main shaft swings. A first base portion is provided on one side of the swing head base along the direction of the axis, and a first shaft hole is provided on the first base portion. A second base portion is provided on the other side of the swing head base, and a second shaft hole is provided on the second base portion. The first shaft hole and the second shaft hole are aligned with each other and communicate with each other. At least one of the aforementioned technical solutions of the rotating device is installed on the first base portion. The main shaft is located between the first base portion and the second base portion in the direction of the axis. The rotating body of the rotating device is connected to the side of the main shaft for transmission to drive the main shaft to swing.

[0018] Another aspect of the embodiments of this application provides a turntable, the turntable including a base, a worktable and a rotating device as described in one of the foregoing technical solutions, the base of the rotating device being fixedly connected to the base, and the rotating body of the rotating device being fixedly connected to the worktable.

[0019] Another aspect of the embodiments of this application provides a machine tool, the machine tool including a body, a swivel head as described in the foregoing technical solution or a rotary table as described in the foregoing technical solution, the swivel head or the rotary table being disposed on the body.

[0020] Compared with the prior art, the beneficial effects of this utility model include at least the following: one of the sensor and the sensing plate in the detection device is fixed to the brake piston while the other is fixed to the adjusting bracket, so that the sensor or the sensing plate can move synchronously with the brake piston. By setting an adjusting mechanism to adjust the position of the adjusting bracket in the direction of movement of the brake piston, the distance between the sensing end of the sensor and the sensing plate is within the sensor's measurement range when the control command controls the brake mechanism to release the brake. Thus, after the control command to release the brake is sent, under the action of the brake oil circuit, one of the sensor and the sensing plate can move towards the other with the brake piston. When one of the sensor and the sensing plate moves to a distance within the sensor's measurement range, the sensor can sense and send a detection signal indicating that the brake has been released. The detection device in the entire rotating device has the advantages of stable and reliable detection results, simple structure, relatively low cost, and easy and precise adjustment of the sensor installation position.

[0021] Additional aspects and advantages of embodiments of this application 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 embodiments of this application. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the swing head provided by this utility model;

[0023] Figure 2This is a half-sectional structural diagram of the rotating body provided by this utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the rotating body provided by this utility model;

[0025] Figure 4 This is a perspective view of the detection device provided by this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Head swing; 110-Head swing seat; 111-First seat body; 112-Second seat body;

[0028] 10-Base; 11-Cylinder body; 12-Cylinder end cap;

[0029] 20 - Rotating body;

[0030] 30-Brake mechanism; 31-Brake cylinder; 32-Brake piston; 33-Brake disc; 34-Elastic element; 35-First friction pad; 36-Oil hole; 37-Second friction pad;

[0031] 40 - Detection device; 41 - Sensor; 42 - Sensing plate; 421 - First mounting part

[0032] 43-Adjusting bracket; 44-Adjusting mechanism; 45-Bracket mounting base;

[0033] 431 - Sensor mounting section; 432 - Guide section Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that when a component is referred to as being "set on" another component, it can be directly set on the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may be an intervening component.

[0036] Furthermore, it should be understood that all directional indications in the embodiments (such as up, down, left, right, center, etc.) are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indications will also change accordingly. Terms such as "first" and "second" are used to distinguish different structural components. These terms are only for the purpose of simplifying the description of this utility model and should not be construed as limiting this utility model.

[0037] The rotating device provided by this utility model integrates a braking mechanism 30 and a detection device 40. The hydraulically driven braking component ensures rapid response, while the adjustable detection device 40 enables precise monitoring. This achieves effective braking detection while saving installation space and cost.

[0038] See Figures 1 to 4 Some embodiments of this utility model provide a rotating device, which includes a base 10, a rotating body 20, a braking mechanism 30, and a detection device 40. The braking mechanism 30 includes a brake cylinder 31, a brake piston 32, and a brake disc 33. The detection device 40 includes a sensor 41, a sensing plate 42, an adjusting bracket 43, and an adjusting mechanism 44. The rotating device mainly consists of a base 10 and a rotating body 20 forming a basic frame. The base 10 serves as the main support for the entire device, providing a mounting base for other components. The rotating body 20, located inside the base 10, is the core component for realizing the rotating function. Under power drive, it can rotate within the base 10, providing the basic rotating function for the operation of the equipment.

[0039] The braking mechanism 30 is located between the base 10 and the rotating body 20. The braking mechanism 30 includes a brake cylinder 31, a brake piston 32, and a brake disc 33. The brake cylinder 31 is fixed within the base 10, or formed by a cylinder body 11 on the base 10. The brake piston 32 is disposed within the brake cylinder 31. After the brake piston 32 is inserted into the brake cylinder 31, it can be closed by the cylinder end cap 12 of the base 10, thereby confining the brake piston 32 within the brake cylinder 31, but the brake piston 32 can move within the brake cylinder 31. The brake disc 33 is fixed to the rotating body 20, and the brake piston 32 is disposed opposite to the brake disc 33. When the brake piston 32 moves, it can contact the brake disc 33 and generate friction, thereby braking the rotating body 20.

[0040] The detection device 40 includes a sensor 41, a sensing plate 42, an adjusting bracket 43, and an adjusting mechanism 44. The adjusting bracket 43 is mounted on the base 10. One of the sensors 41 and the sensing plate 42 is fixed to the brake piston 32, and the other is fixed to the adjusting bracket 43. These two components, arranged opposite each other, constitute the main parts of the detection mechanism. The adjusting mechanism 44 is connected to the adjusting bracket 43. By adjusting the position of the adjusting bracket 43 in the moving direction of the brake piston 32, the relative position between the sensor 41 and the sensing plate 42 is changed, ensuring that the detection device 40 can accurately detect changes in the position of the brake piston 32.

[0041] Driven by an external power source (such as a motor via a transmission belt, gears, or other transmission components), the rotating body 20 rotates continuously around its own axis. The movement of the brake piston 32 within the brake cylinder 31 can be controlled by hydraulic pressure and a reset mechanism (such as an elastic element 34). When braking is required, hydraulic oil enters the brake cylinder 31. Under hydraulic pressure, the brake piston 32 resists the elastic force of the reset mechanism (such as a reset spring) and moves away from the brake disc 33, separating the brake disc 33 from the brake piston 32, allowing the rotating body 20 to resume free rotation. When braking is required, hydraulic oil no longer enters the brake cylinder 31. Under the elastic force of the reset mechanism (such as a reset spring), the brake piston 32 presses against the brake disc 33, and the friction generated between them decelerates the rotating body 20 until it stops. The brake disc 33 is rigidly connected to the rotating body 20 and rotates synchronously with it. The sensing plate 42 moves synchronously with the brake piston 32. When the brake piston 32 moves, the relative position between the sensing plate 42 and the sensor 41 fixed on the adjusting bracket 43 changes. Sensor 41 monitors the position of sensing plate 42 in real time. When sensing plate 42 enters the detection range of sensor 41, sensor 41 is triggered and outputs a corresponding signal to determine the position of brake piston 32 and thus confirm whether the rotating device is in a released braking state or a braking state.

[0042] It should be noted that the hydraulic and reset mechanisms described above can be interchanged. That is, the hydraulic system is used to control the brake disc 33 to contact the brake piston 32 for braking, while the reset mechanism is used to control the brake disc 33 to separate from the brake piston 32. The specific principle is similar to the above scheme.

[0043] The brake piston 32 moves linearly within the brake cylinder 31. In the first state (braking state), the brake piston 32 presses against the brake disc 33, and the sensing plate 42 moves away from the sensing end of the sensor 41 along with the brake piston 32. In the second state (brake release state), hydraulic pressure pushes the brake piston 32 to move, causing the sensing plate 42 to move closer to the sensor 41 until the sensing plate 42 enters the measurement range of the sensor 41. By detecting the positional change of the sensing plate 42, the sensor 41 can feed the signal back to the control system to determine whether the brake has been fully released.

[0044] The rotating device outputs power through the rotating body 20, accurately controls the start and stop with the braking mechanism 30, and provides real-time feedback on the status using the detection device 40, thereby significantly improving equipment safety, processing accuracy and production efficiency. At the same time, it effectively reduces maintenance costs with its reasonable structural design and automation functions.

[0045] See Figure 4 In some embodiments of the present invention, the detection device 40 further includes a bracket mounting base 45. The bracket mounting base 45 is fixed to the base 10, and an adjusting bracket 43 is mounted on the bracket mounting base 45 and is adjustable. The sensor 41 is fixed to the adjusting bracket 43. The sensing plate 42 includes a first mounting portion 421, and the sensing plate 42 is fixed to the brake piston 32 via the first mounting portion 421. When the brake piston 32 moves, the sensing plate 42 moves synchronously. The cooperation between the bracket mounting base 45 and the adjusting bracket 43 ensures that the relative position of the sensor 41 and the sensing plate 42 is within the measurement range of the sensor 41 when the brake is released (i.e., the brake is fully released).

[0046] See Figure 4 In some embodiments of the present invention, the detection device 40 includes an adjusting bracket 43 comprising a guide portion 432, which is adapted to a corresponding guide structure on the bracket mounting base 45 to allow the adjusting bracket 43 to move along the direction of movement of the brake piston 32 under the action of the adjusting mechanism 44. The adjusting mechanism 44 passes through the adjusting bracket 43 and connects to the screw hole on the bracket mounting base 45, fixing the adjusting bracket 43 to the bracket mounting base 45. The sensor 41 is mounted on the adjusting bracket 43, and the sensing plate 42 is fixed to the brake piston 32, constituting the main components of the detection mechanism. The cooperation between the guide portion 432 and the bracket mounting base 45 provides precise positioning and guidance for the adjusting bracket 43, while the adjusting mechanism 44 enables the fastening and fine-tuning of the position of the adjusting bracket 43.

[0047] Under the pushing or pulling force of the adjusting mechanism 44 (e.g., adjusting screw), the adjusting bracket 43 is displaced along the direction defined by the cooperation between the guide portion 432 and the bracket mounting base 45 (i.e., the direction of movement of the brake piston 32). During braking, the brake piston 32 moves linearly within the brake cylinder 31, causing the sensing plate 42 to move synchronously. The adjusting bracket 43, under the action of the adjusting mechanism 44, maintains a relatively independent position, enabling the sensor 41 to accurately detect changes in the position of the sensing plate 42. The cooperation between the guide portion 432 and the bracket mounting base 45 ensures precise and stable movement of the adjusting bracket 43, guaranteeing accurate relative positioning between the sensor 41 and the sensing plate 42, improving detection accuracy, reliability, and service life, while also facilitating debugging and maintenance.

[0048] See Figure 4 In some embodiments of the present invention, the detection device 40 shown includes an adjustment bracket 43 comprising a sensor mounting portion 431 and a guide portion 432, which are fixedly connected or integrally formed. The guide portion 432 cooperates with a guide structure on the bracket mounting base 45 to provide movement guidance for the adjustment bracket 43; the sensor mounting portion 431 is used to fix the sensor 41, keeping it in a stable detection position. The adjustment mechanism 44 includes at least two spaced-apart adjustment screws, and the bracket mounting base 45 has screw holes adapted to the adjustment screws. The adjustment screws pass through the adjustment bracket 43 and are screwed into the screw holes, achieving a fixed connection between the adjustment bracket 43 and the bracket mounting base 45. The adjustment screws can also be used to adjust the position of the adjustment bracket 43, for example, by loosening the adjustment screws to change the position of the adjustment bracket 43 as needed. The adjustment mechanism 44 includes at least two adjustment screws; loosening a portion of the adjustment screws allows for fine-tuning of the position of the adjustment bracket 43, while keeping the other portion of the adjustment screws tightened ensures that the adjustment bracket 43 and the bracket mounting base 45 remain connected and do not completely separate.

[0049] The split or integrated structure design of the adjustment bracket 43, combined with the connection method between the adjustment screw and the bracket mounting base 45, ensures the stability and guiding accuracy of the sensor 41 installation, and facilitates the precise alignment of the sensor 41 and the sensing plate 42 through adjustment, thereby improving the detection accuracy, reliability and maintenance convenience of the detection device 40.

[0050] See Figure 2In some embodiments of this invention, the braking mechanism 30 further includes an elastic element 34 and a first friction plate 35. The fixed end of the elastic element 34 abuts against the base 10, and the free end of the elastic element 34 abuts against the brake piston 32, providing a restoring elastic force to the brake piston 32. The first friction plate 35 is fixed to the brake piston 32 and located between the brake piston 32 and the brake disc 33, used to generate friction to achieve braking. The brake piston 32 can switch between a first state and a second state, where the first state is the braking state and the second state is the released braking state (in the released braking state, the brake should be fully released). In the first state, the brake piston 32 presses against the brake disc 33 through the first friction plate 35; in the second state, the brake piston 32 separates from the brake disc 33 through the first friction plate 35.

[0051] When the machine tool is not in a machining state, the brake cylinder 31 is not supplied with hydraulic pressure, and the brake piston 32 is in the first state. At this time, the elastic element 34 (e.g., disc spring) is in a compressed state and tends to return to its natural length. Under the action of the elastic force of the elastic element 34, the elastic element 34 pushes the brake piston 32 toward the brake disc 33, thereby causing the first friction plate 35 fixed on the brake piston 32 to squeeze the brake disc 33.

[0052] When the machine tool is in the machining state, the oil circuit of the brake cylinder 31 begins to supply oil. Under the action of oil pressure, the brake piston 32 overcomes the elastic force of the elastic element 34 and moves away from the brake disc 33. At this time, the state of the brake piston 32 switches to the second state. As the brake piston 32 moves, the first friction plate 35 separates from the brake disc 33, and the brake disc 33 is no longer subjected to friction. Therefore, the braking state of the rotating body 20 is released, and the rotating body 20 can rotate freely.

[0053] The cooperation between the elastic element 34 and the first friction plate 35 ensures that the entire rotating device is in a braking state under normal conditions. That is, without any other external force, the elastic force of the elastic element 34 causes the brake piston 32 to drive the first friction plate 35 to press against the brake disc 33. The braking mechanism 30 of the rotating device can automatically achieve braking through elastic force, and can also be driven to release the brake under the action of external force (e.g., the force of hydraulic pressure), thereby realizing the switching between the two states of the brake piston 32, effectively enhancing the braking effect and stability, and avoiding abnormal wear of brake components.

[0054] Furthermore, in some embodiments of this utility model, the elastic element 34 is disposed within the brake cylinder 31 and located on one side of the brake piston 32. The cylinder body of the brake cylinder 31 is provided with multiple oil holes 36, which are connected to the other side of the brake piston 32 via brake oil passages, forming a hydraulic drive channel. This provides a hydraulic power source for the movement of the brake piston 32 against the elastic force of the elastic element 34. Oil pressure enters the brake cylinder 31 through the oil holes 36, pushing the brake piston 32 to move against the elastic force of the elastic element 34.

[0055] A second friction pad 37 is also provided between the base 10 and the brake disc 33. The second friction pad 37 is fixed on the base 10, and the second friction pad 37 and the first friction pad 35 are located on opposite sides of the brake disc 33. The second friction pad 37 and the first friction pad 35 cooperate to form a bidirectional friction braking structure, which can enhance the braking effect.

[0056] When the brake fluid circuit is not supplied, the elastic force of the elastic element 34 pushes the brake piston 32, causing the first friction pad 35 fixed on the brake piston 32 to press against the brake disc 33. At the same time, the second friction pad 37 on the base 10 also contacts the other side of the brake disc 33, achieving bidirectional braking. When the brake fluid circuit is supplied, one side of the brake piston 32 is acted upon by the elastic force of the elastic element 34, while the other side is acted upon by the force of the hydraulic pressure. The elastic force and the hydraulic pressure are in opposite directions, and the hydraulic pressure is greater than the elastic force, pushing the brake piston 32 to move in the opposite direction against the elastic force, causing the first friction pad 35 to separate from the brake disc 33, thereby releasing the brake. Under the alternating action of the elastic force of the elastic element 34 and the hydraulic pressure, the brake piston 32 reciprocates linearly within the brake cylinder 31, realizing the switching between the braking state and the released state of the brake disc 33.

[0057] The built-in elastic element 34, the hydraulic drive of multiple oil holes 36, and the bidirectional arrangement of friction plates in the structural design enable the braking mechanism 30 to have the characteristics of elastic automatic reset, precise hydraulic control, and high-efficiency braking capability, which can ensure the stability and reliability of the braking and release processes, thereby improving braking efficiency and accuracy.

[0058] In some embodiments of this invention, the sensor 41 in the detection device 40 is a position sensor. This position sensor includes a sensing end with sensing function, used to detect the presence of a measured object (e.g., sensing plate 42) within a certain distance range. The distance between the sensing end and the sensing plate 42 is within the measurement range of the sensor 41. The sensing plate 42, as the measured object, is fixed to the brake piston 32. The adjusting bracket 43 is connected to the base 10 via a bracket mounting base 45 and can move under the action of the adjusting mechanism 44, maintaining a corresponding positional relationship between the sensor 41 and the sensing plate 42. When the brake piston 32 is in the second state of brake release, the sensing plate 42 moves with the brake piston 32 to a certain position. At this position, the distance between the sensing end of the sensor 41 and the sensing plate 42 is within the effective measurement range of the sensor 41, thus allowing the sensor 41 to sense and send a signal indicating that the brake has been fully released.

[0059] By employing a position sensor and ensuring that the sensing end of sensor 41 and the sensing plate 42 are within the effective measurement range when the brake is released, it is possible to accurately detect whether the brake has been fully released, thereby avoiding component wear caused by incomplete brake release, thus improving the reliability and safety of equipment operation and ensuring stable and efficient operation of the equipment.

[0060] See Figure 1 Some embodiments of another aspect of this utility model provide a swing head 1. The swing head 1 includes a main shaft and a swing head base 110. The swing head base 110 has an axis around which the main shaft swings. A first base portion 111 is provided on one side of the swing head base 110 along the direction of the axis, and a first shaft hole is provided on the first base portion 111. A second base portion 112 is provided on the other side of the swing head base 110, and a second shaft hole is provided on the second base portion 112. The first shaft hole and the second shaft hole are aligned with each other and communicate with each other. The main shaft is located between the first base portion 111 and the second base portion 112 in the direction of the axis.

[0061] As described in one of the embodiments above, the rotating device is installed on the first base 111, and its rotating body 20 is connected to the side of the main shaft located between the two bases (i.e., the first base 111 and the second base 112) to drive the main shaft to swing, so that the rotating device, the main shaft and the swing head base 110 form a cooperative motion structure.

[0062] The rotating body 20 of the rotating device rotates under the drive of an external force, and transmits the motion to the main shaft through a side transmission connection, causing the main shaft to swing around the axis of the swing head 1 seat. The shaft holes of the first seat part 111 and the second seat part 112 are aligned and connected to provide stable support and guidance for the swing of the main shaft, ensuring the smoothness and accuracy of the swing process.

[0063] Some embodiments of another aspect of this utility model provide a turntable. The turntable includes a base, a worktable, and a rotating device as described in one of the preceding embodiments. The base 10 of the rotating device is fixedly connected to the base, and the rotating body 20 of the rotating device is fixedly connected to the worktable. Since this turntable has the rotating device as described in one of the preceding embodiments, it possesses the technical effects of that rotating device, which will not be elaborated further here.

[0064] Some embodiments of another aspect of this utility model provide a machine tool. The machine tool includes a body and a swivel head 1 or a rotary table as described in one of the preceding embodiments, the swivel head 1 or rotary table being disposed on the body. Since the machine tool has a rotating device as described in one of the preceding embodiments (the swivel head 1 and the rotary table include the rotating device), the machine tool correspondingly possesses the technical effects of this rotating device, which will not be elaborated further here.

[0065] The working principle of the rotating device in this utility model is as follows:

[0066] This rotating device is based on the base 10, and the rotating body 20 outputs rotational power under external power drive. The braking mechanism 30, with the help of hydraulic pressure and elastic element 34, controls the compression or separation of the brake piston 32 and brake disc 33 to realize the start and stop of the rotating body 20. The adjustment bracket 43 in the detection device 40 is finely adjusted in position through the guide adaptation structure with the bracket mounting base 45 and the adjustment mechanism 44. The sensor 41 fixed on the adjustment bracket 43 cooperates with the sensing plate 42 connected to the brake piston 32. When the brake is released, the sensing plate 42 enters the measurement range of the sensor 41, thereby triggering signal feedback. The rotating body 20, the braking mechanism 30 and the detection device 40 work together to realize power transmission, braking control and status monitoring, effectively ensuring the safe, stable and efficient operation of the equipment.

[0067] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A rotating device, comprising a base (10) and a rotating body (20) disposed within the base (10), characterized in that, Also includes: A braking mechanism (30) is disposed between the base (10) and the rotating body (20). The braking mechanism (30) includes a brake cylinder (31) disposed in the base (10), a brake piston (32) disposed in the brake cylinder (31), and a brake disc (33) disposed on the rotating body (20). The brake piston (32) and the brake disc (33) cooperate for braking. The detection device (40) includes a sensor (41), a sensing plate (42), an adjusting bracket (43), and an adjusting mechanism (44). The sensor (41) and the sensing plate (42) are arranged opposite to each other. The adjusting bracket (43) is mounted on the base (10). One of the sensor (41) and the sensing plate (42) is fixed to the brake piston (32), and the other is fixed to the adjusting bracket (43). The adjusting mechanism (44) is used to adjust the position of the adjusting bracket (43) in the moving direction of the brake piston (32).

2. The rotating device according to claim 1, characterized in that, The detection device (40) further includes a bracket mounting base (45), the adjustment bracket (43) is mounted on the base (10) through the bracket mounting base (45), the sensor (41) is mounted on the adjustment bracket (43), and the sensing plate (42) is fixed on the brake piston (32).

3. The rotating device according to claim 2, characterized in that, The adjusting bracket (43) has a guide portion (432), which cooperates with the bracket mounting base (45) to cause the adjusting bracket (43) to move along the direction of movement of the brake piston (32) under the action of the adjusting mechanism (44).

4. The rotating device according to claim 3, characterized in that, The adjustment bracket (43) also includes a sensor mounting part (431), which is fixedly connected to the guide part (432) or the two are an integral structure. The sensor (41) is fixedly connected to the sensor mounting part (431). The adjustment mechanism (44) includes at least two spaced adjustment screws. The bracket mounting base (45) is provided with screw holes that are compatible with the adjustment screws. The adjustment bracket (43) is fixedly connected to the bracket mounting base (45) by the adjustment screws.

5. The rotating device according to any one of claims 1-4, characterized in that, The braking mechanism (30) further includes an elastic element (34) and a first friction plate (35). The elastic element (34) has a fixed end and a free end. The fixed end abuts against the base (10), and the free end abuts against the brake piston (32). The first friction plate (35) is fixed to the brake piston (32) and located between the brake piston (32) and the brake disc (33). The brake piston (32) can switch between a first state and a second state. In the first state, the brake piston (32) squeezes the brake disc (33) through the first friction plate (35). In the second state, the brake piston (32) separates from the brake disc (33) through the first friction plate (35).

6. The rotating device according to claim 5, characterized in that, The elastic element (34) is disposed in the brake cylinder (31) and located on one side of the brake piston (32). The cylinder body of the brake cylinder (31) is provided with a plurality of oil holes (36). The plurality of oil holes (36) are connected to the other side of the brake piston (32) through the brake oil circuit. The brake piston (32) can move relative to the brake cylinder (31) when the brake oil circuit supplies oil. A second friction plate (37) is provided between the base (10) and the brake disc (33), and the second friction plate (37) is fixed on the base (10).

7. The rotating device according to claim 5, characterized in that, The sensor (41) is a position sensor and has a sensing end. In the second state, the distance between the sensing end and the sensing plate (42) is within the measurement range of the sensor (41).

8. Head swing (1), characterized in that, The device includes a main shaft and a swing head seat (110). The swing head seat (110) has an axis around which the main shaft swings. The swing head seat (110) has a first seat portion (111) on one side along the direction of the axis and a first shaft hole on the first seat portion. The swing head seat (110) has a second seat portion (112) on the other side and a second shaft hole on the second seat portion. The first shaft hole and the second shaft hole are aligned with each other and communicate with each other. At least the first seat portion (111) is equipped with a rotating device according to claim 7. The main shaft is located between the first seat portion (111) and the second seat portion (112) in the direction of the axis. The rotating body (20) of the rotating device is connected to the side of the main shaft to drive the main shaft to swing.

9. A turntable, comprising a base and a worktable, characterized in that, It also includes the rotating device according to claim 7, wherein the base (10) of the rotating device is fixedly connected to the base, and the rotating body (20) of the rotating device is fixedly connected to the worktable.

10. A machine tool, including a body, characterized in that, It also includes the swing head according to claim 8 or the turntable according to claim 9, wherein the swing head or turntable is disposed on the body.

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