Head shaking C-axis stop device

Abstract

The application discloses a swing head C-shaft limiting device, which comprises a limiting disc, a mounting seat and a limiting block. The limiting disc is adapted to be fixedly connected with the swing head C-shaft. The mounting seat is fixedly arranged on a swing head seat body. The limiting block is movably connected with the mounting seat and in contact with the limiting disc. The limiting disc is adapted to rotate to drive the limiting block to perform linear reciprocating motion in a first direction. A linear motion guide assembly is installed on the mounting seat and comprises a plurality of guide rods. The guide rods are in sliding fit with the limiting block in the first direction. At least two of the guide rods are arranged in a second direction, and the second direction intersects the first direction. The swing head C-shaft limiting device can utilize the at least two guide rods distributed in the second direction to limit the rotation of the limiting block, thereby reducing the risk of separation of the limiting block and the swing head C-shaft, and further improving the limiting reliability of the swing head C-shaft limiting device.

Description

Technical Field

[0001] This application relates to the field of CNC machine tools, and in particular to a tilting head C-axis limiting device. Background Technology

[0002] Five-axis CNC machine tools are the main equipment for machining complex curved surfaces. The swivel C-axis, as the core functional component of a swivel-type five-axis CNC machine tool, directly affects the overall performance of the machine tool. Currently, for the movement of the swivel C-axis, a limit device is usually required to restrict its forward and reverse rotation angles. However, the limit blocks in existing limit devices tend to rotate along with the swivel C-axis, causing the limit blocks to separate from the swivel C-axis and fail to achieve the desired limit, reducing the reliability of the limit. Furthermore, the rotation of the limit blocks can easily interfere with other structures, posing certain safety hazards. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a swing head C-axis limiting device, which can use at least two guide rods distributed in a second direction to limit the rotation of the limiting block, thereby reducing the risk of separation between the limiting block and the swing head C-axis, and helping to avoid interference with other structures when the limiting block rotates, thus improving the limiting reliability of the swing head C-axis limiting device.

[0004] According to an embodiment of the present invention, a C-axis limiting device for a sway head includes: a limiting plate adapted to be fixedly connected to the C-axis of the sway head; a mounting base fixedly disposed on the sway head body; a limiting block movably connected to the mounting base and in contact with the limiting plate, the limiting plate being adapted to rotate to drive the limiting block to perform linear reciprocating motion along a first direction; and a linear motion guide assembly mounted on the mounting base and including a plurality of guide rods, the guide rods slidingly engaging with the limiting block in the first direction, and at least two of the plurality of guide rods being spaced apart along a second direction, the first direction being the extension direction of the rotation axis of the limiting plate, and the second direction intersecting the first direction.

[0005] According to the embodiment of the present invention, the swing head C-axis limiting device is configured such that guide rods are slidably engaged with the limiting block in the first direction. This improves the motion stability of the limiting block when the limiting disc rotates to drive the limiting block to reciprocate linearly in the first direction. Furthermore, at least two of the guide rods are distributed in directions that intersect with the motion direction of the limiting block. This allows at least two guide rods distributed in the second direction to limit the rotational tendency of the limiting block, thereby reducing the risk of separation between the limiting block and the swing head C-axis. It also helps to avoid interference with other structures when the limiting block rotates, thus reducing safety hazards and improving the limiting reliability of the swing head C-axis limiting device.

[0006] According to some embodiments of the present invention, the C-axis limiting device for the swing head includes a linear motion guiding assembly further comprising: a plurality of linear bearings, wherein the linear bearings are mounted on the limiting block, and each linear bearing is sleeved on a guide rod.

[0007] According to some embodiments of the present invention, the swing head C-axis limiting device has an active space provided on the mounting base, and the linear motion guide component is located within the active space.

[0008] According to some embodiments of the present invention, the C-axis limiting device for the swing head is located within the active space, and the limiting block slides in cooperation with the inner wall of the active space along the first direction.

[0009] According to some embodiments of the present invention, in the swing head C-axis limiting device, at least two of the guide rods spaced apart along the second direction are at the same distance from the limiting plate.

[0010] According to some embodiments of the present invention, the swing head C-axis limiting device further includes: a rolling bearing, a spiral groove is provided on the outer peripheral wall of the limiting disk, the rolling bearing is disposed in the spiral groove, and the limiting block is connected to the rolling bearing.

[0011] According to some embodiments of the present invention, the swing head C-axis limiting device further includes: a sensor assembly, the sensor assembly being mounted on the mounting base, and the sensor assembly being used to limit the limiting block for limiting identification; wherein, the position of the sensor assembly in the first direction is adjustable.

[0012] According to some embodiments of the present invention, the C-axis limiting device for the oscillating head includes a sensor assembly comprising a sensor bracket and a limiting sensor. The sensor bracket is detachably mounted on the mounting base, the limiting sensor is mounted on the sensor bracket, and the position of the sensor bracket in the first direction is adjustable.

[0013] According to some embodiments of the present invention, the swing head C-axis limiting device has a mounting base with a strip groove extending in the first direction, and the sensor bracket is adapted to be inserted into the strip groove.

[0014] According to some embodiments of the present invention, the swing head C-axis limiting device has multiple sensor brackets and multiple limiting sensors, with each of the multiple sensor brackets and multiple limiting sensors corresponding one-to-one, and at least two of the sensor brackets are distributed in the first direction.

[0015] 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

[0016] 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: Figure 1 This is a schematic diagram of the swing head C-axis limiting device according to some embodiments of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the swing head C-axis limiting device according to some embodiments of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the swing head C-axis limiting device according to some embodiments of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the swing head C-axis limiting device according to some embodiments of the present invention. Figure 4 ; Figure 5 An exploded view of the swing head C-axis limiting device according to some embodiments of the present invention; Figure 6 For the assembly of the mounting base, limiting block, linear motion guide assembly and sensor assembly according to some embodiments of the present invention Figure 1 ; Figure 7 For the assembly of the mounting base, limiting block, linear motion guide assembly and sensor assembly according to some embodiments of the present invention Figure 2 ; Figure 8 This is an exploded view of the mounting base, limiting block, linear motion guide assembly, and sensor assembly according to some embodiments of the present invention.

[0017] Figure label: Head-swing C-axis limiting device 100; First direction X, second direction Y; Limiting plate 10; spiral groove 11; mounting base 20; movable space 21; strip groove 22; Limiting block 30; linear motion guide assembly 40; guide rod 41; linear bearing 42; Sensor assembly 50, sensor bracket 51, limit sensor 52, rolling bearing 60. Detailed Implementation

[0018] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0019] The following is in conjunction with the appendix Figure 1-8 This application describes a swing head C-axis limiting device 100 according to an embodiment of the present application.

[0020] like Figure 1 and Figure 2 As shown, the swing head C-axis limiting device 100 according to an embodiment of the present utility model includes: a limiting plate 10, a mounting base 20, a limiting block 30, and a linear motion guide assembly 40.

[0021] The limiting plate 10 is adapted to be fixedly connected to the C-axis of the swing head, the mounting base 20 is fixedly set on the swing head base body, the limiting block 30 is movably connected to the mounting base 20 and in contact with the limiting plate 10, and the limiting plate 10 is adapted to rotate to drive the limiting block 30 to perform linear reciprocating motion along the first direction X.

[0022] Understandably, a five-axis CNC machine tool includes a swivel C-axis, a swivel head body, and a motor. The swivel C-axis is rotatably mounted on the swivel head body and fixedly connected to the moving part of the motor. The swivel head body and the stator part of the motor are fixedly connected. In this way, the swivel C-axis can be driven by the motor to rotate relative to the swivel head body to achieve machining.

[0023] The mounting base 20 can be fixedly connected to the swing head seat body by bolts, and the limiting plate 10 is fixedly connected to the swing head C-axis so that the limiting plate 10 can rotate synchronously with the swing head C-axis. The limiting plate 10 can be connected to one axial end of the swing head C-axis by bolts, or the limiting plate 10 can be fixedly sleeved on the swing head C-axis to achieve synchronous rotation between the limiting plate 10 and the swing head C-axis. No limitation is made here.

[0024] In some implementations, the limiting disk 10 is adapted to rotate to drive the limiting block 30 to perform linear reciprocating motion along the first direction X.

[0025] It is understandable that the limit plate 10 can rotate clockwise to drive the limit stop 30 upward in the first direction X (e.g., Figure 2 The upper part of the middle) moves, and the limiting plate 10 can rotate counterclockwise to drive the limiting block 30 downward along the first direction X (such as the upper part of the middle). Figure 2 The movement can be either downwards (as shown in the image), or the limiting disc 10 can rotate counterclockwise to drive the limiting block 30 upwards along the first direction X (e.g., below). Figure 2The upper part of the middle) moves, and the limiting plate 10 can rotate clockwise to drive the limiting block 30 downward in the first direction X (such as the upper part of the middle). Figure 2 The movement (below) is not limited here.

[0026] The limit plate 10 and the limit stop 30 can be converted from rotation of the limit plate 10 into linear motion of the limit stop 30 through crank-slider mechanism, ball screw, worm and worm wheel, cam mechanism, etc., which are not limited here.

[0027] In some implementations, the first direction X is the extension direction of the rotation axis of the limiting disk 10. In this way, the limiting block 30 can move in the extension direction of the rotation axis of the limiting disk 10, since the limiting block 30 will move synchronously in a straight line in the extension direction of the rotation axis of the limiting disk 10 when the swing head C axis rotates.

[0028] Therefore, whether the rotation of the limiting disk 10 has reached its limit angle can be determined by whether the current position of the limiting block 30 in the first direction X has reached its limit position, that is, whether the rotation of the swing head C-axis has reached its limit angle. If the rotation of the swing head C-axis has reached its limit angle, the limiting of the swing head C-axis is triggered; if the rotation of the swing head C-axis has not reached its limit angle, the limiting of the swing head C-axis is not triggered. In this way, it is convenient to limit the forward and reverse rotation angles of the swing head C-axis through the swing head C-axis limiting device 100. The limit position is the position of the manually set limiting block 30 in the extension direction of the rotation axis of the limiting disk 10.

[0029] In some implementations, the linear motion guide assembly 40 is mounted on the mounting base 20 and includes a plurality of guide rods 41. The guide rods 41 slide in cooperation with the limit block 30 in the first direction X, so as to improve the motion stability of the limit block 30 when the limit plate 10 rotates to drive the limit block 30 to perform linear reciprocating motion along the first direction X.

[0030] It is understood that the sliding engagement between the guide rod 41 and the limiting block 30 in the first direction X includes the limiting block 30 being slidably sleeved on the guide rod 41 in the first direction X, or one of the guide rod 41 and the limiting block 30 being provided with a groove and the other being provided with a sliding protrusion, with the sliding protrusion and the groove slidingly engaging in the first direction X, which is not limited here.

[0031] For example Figure 1 and Figure 2 As shown, multiple guide rods 41 extend along the first direction X, and a limiting block 30 is sleeved on the multiple guide rods 41. In this way, when the limiting block 30 performs linear reciprocating motion along the first direction X, the limiting block 30 will move along the length direction of the guide rod 41 (first direction X), thereby improving the motion stability of the limiting block 30 in the first direction X.

[0032] Among them, at least two of the multiple guide rods 41 are spaced apart along the second direction Y, and the second direction Y intersects the first direction X.

[0033] For example, the second direction Y can be perpendicular to the first direction X. When the first direction X is the extension direction of the rotation axis of the limiting disk 10, the second direction Y can be the radial direction of the limiting disk 10 or the direction tangent to the circumference of the limiting disk 10. In this way, at least two guide rods 41 distributed in the second direction Y will restrict the rotation of the limiting block 30, that is, prevent the limiting block 30 from rotating, so that the limiting block 30 can only move up and down in the first direction X. This reduces the risk of separation between the limiting block 30 and the swing head C-axis, and helps to avoid interference with other structures when the limiting block 30 rotates, thereby reducing safety hazards and improving the limiting reliability of the swing head C-axis limiting device 100. At the same time, this setting method is relatively simple, which helps to reduce the difficulty of setting and cost.

[0034] In some embodiments, such as Figure 1 and Figure 2 As shown, the linear motion guide assembly 40 also includes a plurality of linear bearings 42, which are mounted on the limit stop 30, and each linear bearing 42 is sleeved on a guide rod 41.

[0035] It is understandable that each linear bearing 42 is fitted onto a guide rod 41 to facilitate the cooperation between the linear bearing 42 and the guide rod 41. In particular, the linear bearing 42 is a linear motion system, which enables the limit stop 30 to achieve smooth linear motion with high sensitivity and high precision.

[0036] In some embodiments, such as Figure 2 As shown, the mounting base 20 is provided with an active space 21, and the linear motion guide assembly 40 is located within the active space 21.

[0037] In this way, the mounting base 20 can protect the linear motion guide component 40 located in the active space 21, thereby reducing the possibility of interference between other structures and the linear motion guide component 40. At the same time, by integrating the linear motion guide component 40 into the active space 21 within the mounting base 20, the weight of the mounting base 20 can be reduced, and the layout of the linear motion guide component 40 and the mounting base 20 can be made more compact, thereby realizing the miniaturization design of the swing head C-axis limiting device 100.

[0038] In some embodiments, such as Figure 2 As shown, the guide rod 41 passes through two opposite side walls of the active space 21 in the first direction X. This facilitates the fixing of the guide rod 41 and reduces the difficulty of setting up the guide rod 41.

[0039] In some embodiments, such as Figure 2As shown, the limiting block 30 is located within the active space 21, and the limiting block 30 slides in cooperation with the inner wall of the active space 21 along the extension direction of the guide rod 41.

[0040] This allows for a more compact layout of the limit block 30 and the mounting base 20, thereby achieving a miniaturized design of the swing head C-axis limit device 100. At the same time, the limit block 30 slides along the first direction X with the inner wall of the movable space 21, which can improve the motion stability of the limit block 30 in the first direction X when the limit plate 10 rotates to drive the limit block 30 to perform linear reciprocating motion along the first direction X.

[0041] In some embodiments, at least two guide rods 41 spaced apart along the second direction Y are at the same distance from the limiting disk 10.

[0042] For example Figure 4 As shown, the second direction Y can be a direction tangent to the circumference of the limiting disk 10. This makes the distance between the at least two guide rods 41 spaced apart along the second direction Y and the limiting disk 10 the same. In particular, this design makes the second direction Y perpendicular to the first direction X, thereby improving the resistance to the rotation tendency of the limiting block 30. At the same time, the at least two guide rods 41 spaced apart along the second direction Y are located on the same side of the limiting disk 10, so as to reduce the design difficulty of the guide rods 41.

[0043] In some embodiments, such as Figure 3 As shown, the swing head C-axis limiting device 100 also includes: a rolling bearing 60, a spiral groove 11 is provided on the outer peripheral wall of the limiting disk 10, the rolling bearing 60 is disposed in the spiral groove 11, and the limiting block 30 is connected to the rolling bearing 60.

[0044] Thus, when the C-axis of the oscillating head rotates, the mounting base 20 is fixedly installed on the oscillating head body, that is, the mounting base 20 is fixed relative to the C-axis of the oscillating head. The outer peripheral wall of the limiting disk 10 is provided with a spiral groove 11. The limiting block 30 is connected to the limiting disk 10 through a rolling bearing 60 embedded in the spiral groove 11. When the limiting disk 10 rotates synchronously with the C-axis of the oscillating head, the rolling bearing 60 will spiral up or down along the spiral groove 11. That is, the rotation of the limiting disk 10 is converted into the linear motion of the limiting block 30 in the first direction X. This realizes the design that the limiting disk 10 is suitable for rotation to drive the limiting block 30 to perform linear reciprocating motion along the first direction X.

[0045] In particular, the rolling bearing 60 used in this application has a more wear-resistant surface than the roller, which can improve the service life of the swing head C-axis limiting device 100. Moreover, the rolling bearing 60 is more stable when rotating than the limiting roller, which can reduce the impact on the limiting block 30 during rotation and improve the stability of the swing head C-axis limiting device 100.

[0046] In some embodiments, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the swing head C-axis limiting device 100 also includes a sensor assembly 50, which is mounted on the mounting base 20 and is used to limit the limit block 30.

[0047] It is understandable that when the swing head C-axis rotates, the limit block 30 will move synchronously in the first direction X. Therefore, the limit block 30 can be limited by the sensor assembly 50 to determine the rotation angle of the swing head C-axis.

[0048] For example, when the limit block 30 moves in the first direction X, the sensor assembly 50 can identify the current position of the limit block 30, thereby determining whether the current position of the limit block 30 has reached the limit position, and then determining whether the rotation of the limit disk 10 has reached the limit angle, that is, whether the rotation of the swing head C-axis has reached the limit angle. If the rotation of the swing head C-axis has reached the limit angle, the limit on the swing head C-axis is triggered; if the rotation of the swing head C-axis has not reached the limit angle, the limit on the swing head C-axis is not triggered.

[0049] This facilitates limiting the forward and reverse rotation angles of the C-axis of the oscillating head using the C-axis limiting device 100. The extreme position is the location of the manually set limiting block 30 along the extension direction of the rotation axis of the limiting disk 10.

[0050] In some embodiments, the position of the sensor assembly 50 in the first direction X is adjustable.

[0051] It is understandable that the limit block 30 moves linearly along the first direction X, while the position of the sensor assembly 50 in the first direction X is adjustable. This makes it easy to ensure that the sensor assembly 50 can perform limit recognition on the limit block 30, while also allowing the sensing range of the sensor assembly 50 in the first direction X to meet different usage requirements.

[0052] In some embodiments, such as Figure 6 As shown, the sensor assembly 50 includes a sensor bracket 51 and a limit sensor 52. The sensor bracket 51 is detachably mounted on the mounting base 20, the limit sensor 52 is mounted on the sensor bracket 51, and the position of the sensor bracket 51 in the first direction X is adjustable.

[0053] In this way, the position of the sensor assembly 50 in the first direction X can be adjusted by adjusting the position of the sensor bracket 51, and the sensor bracket 51 can be detachably installed on the mounting base 20, so as to reduce the difficulty of adjusting the position of the sensor bracket 51 in the first direction X.

[0054] For example, the mounting base 20 may be provided with a plurality of threaded holes spaced apart along the first direction X. The sensor bracket 51 can be installed in any of the threaded holes by screws. This makes it easier to adjust the position of the sensor bracket 51 in the first direction X and also makes it easier to replace the sensor assembly 50.

[0055] In some embodiments, such as Figure 7 and Figure 8 As shown, the mounting base 20 is provided with a strip groove 22 extending in the first direction X, and the sensor bracket 51 is adapted to be inserted into the strip groove 22.

[0056] This makes it easier to reduce the difficulty of adjusting the position of the sensor bracket 51 in the first direction X, and the sensor bracket 51 is inserted into the strip groove 22, so that the connection between the sensor bracket 51 and the mounting bracket is more stable, and the distribution of the two is more compact, which is conducive to realizing the miniaturization design of the swing head C-axis limiting device 100.

[0057] In some embodiments, such as Figure 6 As shown, multiple sensor brackets 51 and multiple limit sensors 52 are provided, with each sensor bracket 51 and each limit sensor 52 corresponding to one another, and at least two sensor brackets 51 are distributed in the first direction X.

[0058] For example, two sensor brackets 51 and two limit sensors 52 are provided. The two sensor brackets 51 and the two limit sensors 52 correspond one-to-one. The two sensor brackets 51 are spaced apart in the first direction X. One limit sensor 52 can correspond to the upper limit position of the limit block 30 in the first direction X, and the other limit sensor 52 can correspond to the lower limit position of the limit block 30 in the first direction X.

[0059] It is understandable that, since the limit block 30 reciprocates linearly in the first direction X, the limit block 30 moves upward in the first direction X (e.g., ...). Figure 2 The upper limit position of the movement (above) is the upper limit position, and the limit stop 30 moves downward in the first direction X (e.g., above). Figure 2 The lower limit position is the extreme position when the movement is below. In this application, two limit sensors 52 correspond to the upper limit position and the lower limit position respectively, so as to improve the accuracy of the limit recognition of the limit block 30 by the sensor assembly 50, thereby improving the response speed of the swing head C-axis limit device 100.

[0060] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A C-axis limiting device for a swing head (100), characterized in that, include: A limiting plate (10) is adapted to be fixedly connected to the C-axis of the swing head; Mounting base (20), the mounting base (20) is fixedly disposed on the swing head seat body; A limiting block (30) is movably connected to the mounting base (20) and in contact with the limiting disk (10). The limiting disk (10) is adapted to rotate to drive the limiting block (30) to perform linear reciprocating motion along a first direction. A linear motion guide assembly (40) is mounted on the mounting base (20) and includes a plurality of guide rods (41). The guide rods (41) slide in cooperation with the limiting block (30) in the first direction, and at least two of the plurality of guide rods (41) are spaced apart along the second direction. The first direction is the extension direction of the rotation axis of the limiting disk (10), and the second direction intersects the first direction.

2. The swing head C-axis limiting device (100) according to claim 1, characterized in that, The linear motion guide assembly (40) further includes: a plurality of linear bearings (42), the linear bearings (42) being mounted on the limiting block (30), and each of the linear bearings (42) being sleeved on one of the guide rods (41).

3. The swing head C-axis limiting device (100) according to claim 2, characterized in that, The mounting base (20) is provided with an active space (21), and the linear motion guide assembly (40) is located within the active space (21).

4. The swing head C-axis limiting device (100) according to claim 3, characterized in that, The limiting block (30) is located within the active space (21), and the limiting block (30) slides in cooperation with the inner wall of the active space (21) along the first direction.

5. The swing head C-axis limiting device (100) according to claim 4, characterized in that, The distance between at least two of the guide rods (41) spaced apart along the second direction and the limiting plate (10) is the same.

6. The swing head C-axis limiting device (100) according to any one of claims 1-5, characterized in that, Also includes: The rolling bearing (60) is provided with a spiral groove (11) on the outer peripheral wall of the limiting disk (10), and the rolling bearing (60) is disposed in the spiral groove (11). The limiting block (30) is connected to the rolling bearing (60).

7. The swing head C-axis limiting device (100) according to claim 6, characterized in that, Also includes: A sensor assembly (50) is mounted on the mounting base (20) and is used to perform limit recognition on the limit block (30); The position of the sensor assembly (50) in the first direction is adjustable.

8. The swing head C-axis limiting device (100) according to claim 7, characterized in that, The sensor assembly (50) includes a sensor bracket (51) and a limit sensor (52). The sensor bracket (51) is detachably mounted on the mounting base (20), and the limit sensor (52) is mounted on the sensor bracket (51). The position of the sensor bracket (51) in the first direction is adjustable.

9. The swing head C-axis limiting device (100) according to claim 8, characterized in that, The mounting base (20) is provided with a strip groove (22) extending in the first direction, and the sensor bracket (51) is adapted to be inserted into the strip groove (22).

10. The swing head C-axis limiting device (100) according to claim 8, characterized in that, Multiple sensor brackets (51) and multiple limit sensors (52) are provided, and the multiple sensor brackets (51) and multiple limit sensors (52) correspond one-to-one, and the distribution direction of at least two sensor brackets (51) is the first direction.

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