Linear rotary actuator

Abstract

The utility model discloses a linear rotation actuator, including casing and install in the rotation drive subassembly, linear drive subassembly of casing, rotation drive subassembly is connected in output shaft, to drive output shaft rotation, linear drive subassembly is used for drive rotation drive subassembly and output shaft along linear movement, still be equipped with rotation power supply subassembly on output shaft, and rotation power supply subassembly includes rotatable electric connection stator and rotor, and the rotor sleeve is set up in output shaft outside to follow output shaft rotation and linear movement, and the stator sleeve is set up in the rotor outside to follow the linear movement of rotor, and the rotor is used for with the external load electric connection of install in the one end of the output shaft of the extensible casing, thereby make the structure simplification to the external load and supply power, thereby make the overall production cost reduction of linear rotation actuator.

Description

Technical Field

[0001] This utility model relates to the field of drive equipment, and in particular to a linear rotary actuator. Background Technology

[0002] A linear rotary actuator is a device that can output both linear and rotary motion simultaneously. It is widely used in automated processing fields such as semiconductor chip processing, electronic equipment processing, and machining.

[0003] Existing linear rotary actuators, when there is a load at the end of the output shaft, generally connect the load to a separate external wiring to achieve power supply, and cannot directly supply power to the load at the end of the output shaft, resulting in a complex structure and a high overall production cost of linear rotary actuators. Utility Model Content

[0004] The technical solution of this utility model is as follows: a linear rotary actuator is provided, comprising a housing, a rotary drive assembly, a linear drive assembly, an output shaft, and a rotary power supply assembly; wherein, the rotary drive assembly is installed inside the housing; the output shaft is connected to the rotary drive assembly and can rotate under the drive of the rotary drive assembly; the linear drive assembly is installed inside the housing and is used to drive the rotary drive assembly and the output shaft to move in a straight line; the rotary power supply assembly includes a stator and a rotor that are rotatably electrically connected, the rotor is sleeved outside the output shaft to follow the rotation and linear movement of the output shaft, the stator is sleeved outside the rotor to follow the linear movement of the rotor, and the rotor is used to be electrically connected to an external load installed on the output shaft that can extend out of the housing.

[0005] Preferably, the rotary power supply assembly further includes a first fixing member, which is sleeved on the output shaft and fixedly connected to the output shaft. The rotor is sleeved on the first fixing member and fixedly connected to the first fixing member. The rotor rotates relative to the stator during the rotation of the output shaft.

[0006] Preferably, the housing has a first opening along the axial direction of the output shaft, and the output shaft and the rotary power supply assembly can extend out of the housing through the first opening during linear movement.

[0007] Preferably, the housing has a second opening along the radial direction of the output shaft, through which the rotary power supply assembly is exposed in the housing.

[0008] Preferably, the linear rotary actuator further includes a mounting assembly, one end of which is mounted inside the housing, and the other end of which extends outside the housing through the second opening and is connected to an external wire; the output shaft passes through the mounting assembly, and the stator end away from the external load is connected to the mounting assembly to restrict the stator from rotating with the output shaft.

[0009] Preferably, the mounting assembly includes a second fixing member, which includes a first mounting part and a second mounting part. The first mounting part is installed inside the housing and has a through hole for the output shaft to pass through. The second mounting part extends outside the housing and is connected to the external wire.

[0010] Preferably, the mounting assembly further includes a wire clamping plate, and the second mounting part is further provided with a block structure. The block structure has a groove for accommodating the external wire. The wire clamping plate is mounted on the side of the block structure where the groove is located to clamp the external wire.

[0011] Preferably, the mounting assembly includes a first limiting fitting, and the stator is provided with a second limiting fitting that engages with the first limiting fitting. The first limiting fitting and the second limiting fitting are connected to each other to restrict the rotation of the stator relative to the mounting assembly.

[0012] Preferably, the first limiting fitting is at least partially located outside the housing, and the second limiting fitting passes through the second opening. The first limiting fitting has a columnar structure, and the second limiting fitting has a slot structure that engages with the columnar structure for limiting the movement of the stator relative to the mounting assembly. The columnar structure and the slot structure are connected to each other to restrict the rotation of the stator relative to the mounting assembly.

[0013] Preferably, the output shaft has an air passage, and one end of the output shaft that extends out of the housing has an opening that communicates with the air passage, through which air is supplied to the external load.

[0014] Compared with the prior art, the linear rotary actuator of this utility model has a rotary power supply component on the output shaft. This rotary power supply component includes a stator and a rotor that are rotatably electrically connected. The rotor is sleeved outside the output shaft to follow the rotation and linear movement of the output shaft, and the stator is sleeved outside the rotor to follow the linear movement of the rotor. Furthermore, the rotor rotates relative to the stator during the rotation of the output shaft. At the same time, the rotor is used to electrically connect to an external load installed at one end of the extendable housing of the output shaft. The stator is connected to an external wire, thereby supplying power to the external load. This simplifies the power supply structure. Compared with the prior art, which supplies power to the external load through a separately set external wiring component, the overall production cost of the linear rotary actuator of this application is greatly reduced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the linear rotary actuator of this utility model.

[0016] Figure 2 yes Figure 1 A structural diagram from another angle.

[0017] Figure 3 yes Figure 1 A schematic diagram of the internal structure.

[0018] Figure 4 yes Figure 3 A schematic diagram of the rotary drive assembly, output shaft, and rotary power supply assembly.

[0019] Figure 5 yes Figure 4 The exploded diagram.

[0020] Figure 6 yes Figure 5 A structural diagram of the output shaft and rotating power supply component from another angle.

[0021] Figure 7 yes Figure 3 A cross-sectional view of the output shaft, connecting components, and tracheal assembly. Detailed Implementation

[0022] Embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements. It should be noted that the directional descriptions involved in the present invention, such as up, down, left, right, front, and back, indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the technical solutions of this application or / 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, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., described are only used to distinguish 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 sequential relationship of the indicated technical features.

[0023] First combine Figures 1-6 As shown, in one embodiment of this utility model, the provided linear rotary actuator 100 includes a rotary drive assembly 110, an output shaft 120, a rotary power supply assembly 130, a linear drive assembly 150, and a housing 180 for mounting the aforementioned components. The structure of the housing 180 is a conventional structure in the art and will not be described in detail. The rotary drive assembly 110 is mounted inside the housing 180, and the output shaft 120 is connected to the rotary drive assembly 110, allowing the output shaft 120 to rotate under the drive of the rotary drive assembly 110. The linear drive assembly 150 is mounted inside the housing 180 and is used to drive the rotary drive assembly 110 and the output shaft 120 to move linearly, allowing one end of the output shaft 120 to extend outside the housing 180. The structure of the linear drive assembly 150 is also a conventional structure in the art. The rotary power supply assembly 130 is mounted on the output shaft 120 and moves linearly along the output shaft 120. The rotary power supply assembly 130 is used to supply power to an external load 200 mounted on one end of the output shaft 120 that can extend out of the housing 180, thereby simplifying the power supply structure and reducing production costs.

[0024] In one embodiment of this utility model, the external load 200 is preferably a heating and adsorption module, and the installation method between the heating and adsorption module and the output shaft 120 is a conventional method. Of course, the external load 200 can be flexibly set according to usage requirements.

[0025] The following is combined Figure 3 , Figure 7As shown, in one embodiment of this utility model, the linear rotary actuator 100 further includes a connecting component 160. The connecting component 160 is movably installed within the housing 180 and connects to the linear drive component 150. The connecting component 160 is also used to install the rotary drive component 110 and the output shaft 120. Therefore, the linear drive component 150 drives the rotary drive component 110 and the output shaft 120 to move synchronously in a straight line through the connecting component 160. The connecting component 160 facilitates the assembly of the linear drive component 150, the rotary drive component 110, and the output shaft 120, and also facilitates the linear drive of the rotary drive component 110 and the output shaft 120. The structure of the connecting component 160 is a conventional structure in the art and will not be described in detail.

[0026] The following is combined Figures 1-3 As shown, in one embodiment of the present invention, the housing 180 has a first opening 181 along the axial direction of the output shaft 120. The first opening 181 penetrates one end face of the housing 180, and the output shaft 120 and the rotary power supply assembly 130 can extend out of the housing 180 through the first opening 181 during linear movement.

[0027] More preferably, the housing 180 has a second opening 182 in the radial direction of the output shaft 120. The second opening 182 is preferably located on the top plate and / or bottom plate of the housing 180. The rotary power supply assembly 130 is exposed through the second opening 182 to facilitate connection with the external wire 300. In one specific embodiment, the second opening 182 is provided on both the top plate and the bottom plate of the housing 180, so that the rotary power supply assembly 130 is exposed on the top plate and the bottom plate of the housing 180, respectively.

[0028] The following is combined Figures 4-7 As shown, in one embodiment of this utility model, the rotary power supply assembly 130 includes a stator 131 and a rotor 132 that are rotatably electrically connected. The rotor 132 is sleeved outside and fixedly connected to the output shaft 120, and rotates and moves linearly with the output shaft 120. The stator 131 is sleeved outside the rotor 132, and only moves linearly with the output shaft 120, not rotating with it. Therefore, the rotor 132 rotates relative to the stator 131 while rotating with the output shaft 120. Simultaneously, the stator 131 protrudes from the housing 180 through a second opening 182 for connection to an external wire 300, facilitating the connection between the stator 131 and the external wire 300. The rotor 132 is used for electrical connection to an external load 200 mounted on one end of the output shaft 120 that protrudes from the housing 180, thereby enabling the rotary power supply assembly 130 to supply power to the external load 200.

[0029] Specifically, the second opening 182 and the first opening 181 are directly connected so that the stator 131 follows the output shaft 120 and fully extends out of the housing 180 along the axial direction of the output shaft 120, and ensures that the structure electrically connected to the stator 131 and other structures extending out of the housing 180 through the second opening 182 can fully extend out of the housing 180 along the axial direction of the output shaft 120, avoiding motion interference.

[0030] See Figure 7 As shown, in one embodiment of this utility model, the rotary power supply assembly 130 further includes a first fixing member 133. The first fixing member 133 is sleeved on the output shaft 120 and fixedly connected to the output shaft 120 by fixing members (such as screws). The rotor 132 is sleeved on the first fixing member 133 and fixedly connected to the first fixing member 133 by fixing members (such as screws), thereby making the fixed connection between the rotor 132 and the output shaft 120 simpler and more convenient. The stator 131 is sleeved on the rotor 132 and directly or indirectly connected to the connecting assembly 160 to restrict the stator 131 from rotating with the output shaft 120, thereby allowing the rotor 132 and the stator 131 to rotate relative to each other.

[0031] The following is combined Figures 2-5 As shown, in one embodiment of this utility model, the linear rotary actuator 100 further includes a mounting assembly 140. One end of the mounting assembly 140 is located inside the housing 180 and mounted on the connecting assembly 160. Of course, the mounting assembly 140 can also be mounted on the housing 180 or other components within the housing 180. The other end of the mounting assembly 140 extends out of the housing 180 through the second opening 182 and is connected to an external wire 300, such as... Figure 2 As shown. The output shaft 120 passes through the mounting assembly 140, and the end of the stator 131 furthest from the external load 200 is connected to the mounting assembly 140 to restrict the stator 131 from rotating with the output shaft 120, as shown. Figure 3 As shown. The mounting component 140 makes the installation between the rotary power supply component 130, the connecting component 160, and the external wires 300 more convenient.

[0032] Continue to combine Figures 4-5As shown, in one embodiment of this utility model, the mounting assembly 140 includes a second fixing member 141. The second fixing member 141 includes a first mounting portion 1411 and a second mounting portion 1412. The first mounting portion 1411 is mounted on the connecting assembly 160 and has a through hole 1411a for the output shaft 120 to pass through. The second mounting portion 1412 extends out of the housing 180 through a second opening 182 and is connected to an external wire 300. Simultaneously, the second mounting portion 1412 is also connected to the stator 131, thereby restricting the stator 131 from rotating axially. During the linear movement of the second fixing member 141 and the output shaft 120 driven by the connecting assembly 160, the second mounting portion 1412 moves along the second opening 182, thus not interfering with the linear movement of the second fixing member 141.

[0033] Continue to combine Figures 4-5 As shown, in one embodiment of this utility model, the mounting assembly 140 further includes a first limiting fitting member 142, which is disposed on the second mounting portion 1412. Correspondingly, the stator 131 is provided with a second limiting fitting member 1311 that cooperates with the first limiting fitting member 142. The first limiting fitting member 142 and the second limiting fitting member 1311 are connected to restrict the rotation of the stator 131 relative to the mounting assembly 140, thereby preventing the stator 131 from rotating with the output shaft 120.

[0034] Combination Figure 2 As shown, in one specific embodiment, the first limiting fitting 142 is at least partially located outside the housing 180, and the first limiting fitting 142 has a columnar structure 1421. A second limiting fitting 1311 passes through the second opening 182, and the second limiting fitting 1311 has a slot structure 1311a that engages with and limits the columnar structure 1421. When the first limiting fitting 142 and the second limiting fitting 1311 are engaged, the engagement of the columnar structure 1421 with the slot structure 1311a restricts the rotation of the stator 131 relative to the mounting assembly 140, and simplifies the connection between the stator 131 and the mounting assembly 140.

[0035] Continue to combine Figures 4-5 As shown, in this embodiment, the mounting assembly 140 further includes a block structure 143, which protrudes from the second mounting portion 1412 and extends in opposite directions to the first limiting fitting member 142. A groove 1431 is provided on the block structure 143 for accommodating the external wire 300. Figure 2 As shown, this is to facilitate the installation and positioning of the external wire 300.

[0036] Combination Figure 2 , Figure 5As shown, more preferably, the mounting assembly 140 further includes a wire clamping plate 144, which is mounted on the side of the recess 1431 in the block structure 143 and locked to the block structure 143 by a locking member (e.g., a screw), so that the wire clamping plate 144 clamps the external wire 300. Figure 2 As shown, this is to prevent the external wire 300 from coming loose.

[0037] The following is combined Figure 3 , Figure 6-7 As shown, in one embodiment of the present invention, the output shaft 120 has an air passage 121, and one end of the output shaft 120 that can extend out of the housing 180 has an opening 122 that connects to the air passage 121, through which air is supplied to the external load 200.

[0038] Continue to combine Figure 3 , Figure 6-7 As shown, the linear rotary actuator 100 further includes an air pipe assembly 170, which is connected to the connecting assembly 160 and the housing 180. The air pipe assembly 170 has an air passage 171, and the connecting assembly 160 also has an air passage 161. The air passages 171 of the air pipe assembly 170, 161 of the connecting assembly 160, and 121 of the output shaft 120 are sequentially connected, thereby supplying air to the external load 200 through the air pipe assembly 170, the connecting assembly 160, and the output shaft 120 in sequence. Of course, the air passages are not limited to the arrangement shown in this application; other structures can also achieve air supply to the external load 200.

[0039] Combined again Figures 1-7 As shown, when the linear rotary actuator 100 of this invention is working, the linear drive assembly 150 drives the connecting assembly 160 to move linearly. The connecting assembly 160 drives the rotary drive assembly 110, the output shaft 120, the rotary power supply assembly 130, and the mounting assembly 140 to move synchronously linearly. During this process, the stator 131 and rotor 132 of the rotary power supply assembly 130 both move linearly following the output shaft 120. Moreover, the rotary power supply assembly 130 and the mounting assembly 140 move along the second opening 182, so there is no interference between their movements.

[0040] During the linear movement of the output shaft 120, the output shaft 120 can also rotate under the drive of the rotary drive assembly 110. At this time, the rotor 132 of the rotary power supply assembly 130 rotates with the output shaft 120, while the stator 131 does not rotate under the limiting action of the mounting assembly 140, thereby causing the rotor 132 to rotate relative to the stator 131. During the linear movement and rotation of the output shaft 120, the external wire 300 is electrically connected to the stator 131, and power is supplied to the external load 200 installed at the end of the output shaft 120 in sequence through the stator 131 and the rotor 132, making the structure for supplying power to the external load 200 simple.

[0041] At the same time, air can be supplied to the external load 200 in sequence through the airway 171 of the tracheal assembly 170, the airway 161 of the connecting assembly 160, and the airway 121 of the output shaft 120.

[0042] In summary, the linear rotary actuator 100 of this invention provides a rotary power supply assembly 130 on the output shaft 120 to supply power to the external load 200. The rotary power supply assembly 130 includes a stator 131 and a rotor 132 that are rotatably electrically connected. The rotor 132 is sleeved outside the output shaft 120 to follow the rotation and linear movement of the output shaft 120. The rotor 132 is used to electrically connect to the external load 200 installed at one end of the extendable housing 180 of the output shaft 120. The stator 131 is sleeved outside the rotor 132 to follow the linear movement of the rotor 132. The stator 131 is connected to an external wire 300. Therefore, the rotor 132 rotates relative to the stator 131 during the rotation of the output shaft 120, and the external load 200 is supplied with power through the stator 131 and the rotor 132. This simplifies the power supply structure. Compared with the prior art method of supplying power to the external load 200 through a separately set external wiring assembly, the overall production cost of the linear rotary actuator 100 of this application is greatly reduced.

[0043] The structures of the other parts of the linear rotary actuator 100 involved in this application are all conventional structures well known to those skilled in the art, and will not be described in detail.

[0044] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A linear rotary actuator, characterized in that, include: case; A rotary drive assembly is installed inside the housing; An output shaft is connected to the rotary drive assembly, and the output shaft can rotate under the drive of the rotary drive assembly; A linear drive assembly is installed inside the housing, and the linear drive assembly is used to drive the rotary drive assembly and the output shaft to move in a straight line; A rotary power supply assembly includes a rotatably electrically connected stator and rotor, the rotor being sleeved outside the output shaft to follow the rotation and linear movement of the output shaft, the stator being sleeved outside the rotor to follow the linear movement of the rotor, and the rotor being used for electrical connection to an external load mounted on the output shaft and extending out of the housing.

2. The linear rotary actuator as described in claim 1, characterized in that, The rotary power supply assembly further includes a first fixing member, which is sleeved on the output shaft and fixedly connected to the output shaft. The rotor is sleeved on the first fixing member and fixedly connected to the first fixing member. The rotor rotates relative to the stator during the rotation of the output shaft.

3. The linear rotary actuator as described in claim 1, characterized in that, The housing has a first opening along the axial direction of the output shaft, and the output shaft and the rotary power supply assembly can extend out of the housing through the first opening during linear movement.

4. The linear rotary actuator as described in claim 1, characterized in that, The housing has a second opening along the radial direction of the output shaft, through which the rotary power supply assembly is exposed in the housing.

5. The linear rotary actuator as described in claim 4, characterized in that, It also includes a mounting assembly, one end of which is mounted inside the housing, and the other end of which extends out of the housing through the second opening and is connected to an external wire; the output shaft passes through the mounting assembly, and the end of the stator away from the external load is connected to the mounting assembly to restrict the stator from rotating with the output shaft.

6. The linear rotary actuator as described in claim 5, characterized in that, The mounting assembly includes a second fixing member, which includes a first mounting part and a second mounting part. The first mounting part is installed inside the housing and has a through hole for the output shaft to pass through. The second mounting part extends out of the housing and is connected to the external wire.

7. The linear rotary actuator as described in claim 6, characterized in that, The mounting assembly also includes a wire clamping plate, and the second mounting part is further provided with a block structure. The block structure has a groove for accommodating the external wire. The wire clamping plate is mounted on the side of the block structure where the groove is located to clamp the external wire.

8. The linear rotary actuator as described in claim 5, characterized in that, The mounting assembly includes a first limiting fitting, and the stator is provided with a second limiting fitting that cooperates with the first limiting fitting. The first limiting fitting and the second limiting fitting are connected to each other to restrict the rotation of the stator relative to the mounting assembly.

9. The linear rotary actuator as claimed in claim 8, characterized in that, The first limiting fitting is at least partially located outside the housing, and the second limiting fitting passes through the second opening. The first limiting fitting has a columnar structure, and the second limiting fitting has a slot structure that engages with the columnar structure for limiting the movement of the stator relative to the mounting assembly. The columnar structure and the slot structure are connected to each other to restrict the rotation of the stator relative to the mounting assembly.

10. The linear rotary actuator as claimed in claim 1, characterized in that, The output shaft has an air passage, and one end of the output shaft that extends out of the housing has an opening that communicates with the air passage, through which air is supplied to the external load.

Images