Small-size precision platform

Abstract

The utility model provides a small-size precision platform, which comprises two operation platforms, each operation platform comprises a base, a sliding seat and at least two motor assemblies, the base is in sliding connection with the sliding seat, the base is provided with an installation groove, the sliding seat covers the installation groove, the motor assemblies are installed in the installation groove in parallel, and each motor assembly comprises a rotor device and a stator device. The mover device is fixedly connected with the mounting groove, and the stator device is fixedly connected with the sliding seat and can slide relative to the mover device. The motor assemblies in the operation platform are arranged in parallel, so that the space utilization rate is remarkably improved, the occupied space in the transverse direction and the longitudinal direction is reduced, and the whole small-size precision platform is more compact. By increasing the number of the motor assemblies, the small-size precision platform can bear larger loads, and stability and reliability of operation of the small-size precision platform are guaranteed. In addition, the response speed of the small-size precision platform can be remarkably improved through parallel work of the multiple motor assemblies.

Description

TECHNICAL FIELD

[0001] The utility model relates to a small volume precision platform with small volume, fast response speed and large load belongs to precision machinery equipment field. BACKGROUND

[0002] In various industrial fields, the application of precision platforms is more and more, especially the precision platform of large load, is needed in many scenes.

[0003] The traditional precision platform of large load is often slow in response speed, which limits their use in application scenarios that require fast and dynamic response. At the same time, the volume is also large, which is not suitable for application scenarios with limited space or special requirements for equipment size. Moreover, in the traditional precision platform, the sliding block and the sliding block are usually in contact through the sliding block or directly, which can easily cause wear and tear, high maintenance cost and low motion accuracy.

[0004] Therefore, it is necessary to improve the structure of the existing precision platform to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a small volume precision platform with fast response, large load and small volume.

[0006] In order to achieve the above purpose, the utility model provides a small volume precision platform, which comprises two operation platforms, the operation platform comprises a base, a sliding block and at least two motor assemblies, the two operation platforms are stacked along the direction perpendicular to the base, the sliding direction of the sliding block of any adjacent two operation platforms is perpendicular, the base is slidably connected with the sliding block, the base is provided with a mounting groove, the sliding block covers the mounting groove, the two motor assemblies are installed in parallel in the mounting groove, the motor assembly comprises a rotor device and a stator device, the rotor device is fixedly connected with the mounting groove, the stator device is fixedly connected with the sliding block, the stator device can slide relative to the rotor device, the rotor device comprises a fixed seat and a plug-in part extending in the direction perpendicular to the fixed seat and towards the sliding block, the fixed seat is fixedly connected with the base, the stator device comprises a top surface and a side wall perpendicular to the top surface and extending in the direction from both sides of the top surface towards the base, the top surface and the side wall form a clamping groove, the plug-in part is inserted into the clamping groove, the top surface is fixedly connected with the sliding block, the operation platform further comprises a guide rail assembly, the guide rail assembly comprises an outer rail and an inner rail, the outer rail is fixedly connected with the base, a roller device is arranged between the outer rail and the inner rail, and the outer rail slides relative to the inner rail through the roller device.

[0007] As a further improvement of the utility model, any two adjacent motor assemblies are arranged side by side and closely in the mounting groove along the width direction of the motor assembly.

[0008] As a further improvement of the utility model, the mounting groove comprises a groove bottom and a first groove wall extending from both sides of the groove bottom towards the top surface direction perpendicularly to the groove bottom, and a bearing table is arranged on the end of the first groove wall away from the groove bottom, and the outer rail is mounted on the bearing table.

[0009] As a further improvement of the utility model, the sliding base comprises a containing groove, and the containing groove comprises a groove top and a first groove wall extending from both sides of the groove top towards the base direction perpendicularly to the groove top, the first groove wall is at least partially inserted into the mounting groove, a mounting part is arranged on the outer side of the first groove wall, and the inner rail is fixedly connected with the mounting part.

[0010] As a further improvement of the utility model, the operation platform further comprises a detection assembly, the detection assembly comprises a grating ruler and a reading head, a step part is arranged on the first groove wall of one side, the reading head is fixedly connected with the step part, and the grating ruler is fixedly connected with the first groove wall close to the step part towards the side of the first groove wall.

[0011] As a further improvement of the utility model, a limiting hole is arranged on the first groove wall away from the step part, a limiting part is arranged on the first groove wall close to the limiting hole, and the limiting part extends into the limiting hole to limit the sliding range of the sliding base relative to the base.

[0012] As a further improvement of the utility model, connecting holes are arranged on the bearing table, the mounting part, the outer rail and the inner rail in succession, a fastener is arranged through the connecting holes on the bearing table and the inner rail to fixedly connect the inner rail with the base, and a fastener is arranged through the connecting holes on the mounting part and the outer rail to fixedly connect the outer rail with the sliding base.

[0013] As a further improvement of the utility model, the roller device comprises a roller mounting plate and a roller, a plurality of positioning holes are arranged on the roller mounting plate in succession, the roller is mounted in the positioning hole, the axes of the two adjacent rollers are perpendicular along the sliding direction of the guide rail assembly, V-shaped grooves are arranged in the outer rail and the inner rail, and the roller abuts against the V-shaped groove.

[0014] As a further improvement of the utility model, a positioning seat is arranged on the groove bottom in the mounting groove, and the mover device is fixedly connected with the positioning seat.

[0015] As a further improvement of the present invention, motor baffles are provided at both ends of the motor assembly along the length direction of the motor assembly, and the motor baffles cover the side walls.

[0016] The beneficial effects of the present invention are as follows: in the small-volume precision platform of the present invention, the operating platform includes at least two motor assemblies, and the motor assemblies are placed in parallel, which significantly improves the space utilization, reduces the lateral and longitudinal space occupation, and makes the entire small-volume precision platform more compact. By increasing the number of motor assemblies, the small-volume precision platform can carry a larger load, ensuring the smoothness and reliability of the operation of the small-volume precision platform. In addition, the parallel operation of multiple motor assemblies can significantly improve the response speed of the small-volume precision platform. The design of the plug-in part inserted into the slot realizes the precise docking between the mover device and the stator device, and further enhances the stability of the structure through the limiting effect of the slot. The design of the vertically extending plug-in part and the slot makes the entire small-volume precision platform more compact in structure and occupies less space. At the same time, the rollers installed between the outer and inner rails create less resistance than sliding friction, reducing energy loss and frictional heat. Furthermore, wear on the guide rail assembly is primarily concentrated on the rollers, which are made of high-quality, wear-resistant materials, resulting in minimal overall wear. This design significantly extends the life of the guide rail assembly and reduces wear caused by friction. Furthermore, the relative sliding of the outer and inner rails via the rollers ensures high motion accuracy for this compact precision platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of a small-volume precision platform according to one embodiment of the present utility model.

[0018] Figure 2 yes Figure 1 A cross-sectional view of the small-volume precision platform is shown.

[0019] Figure 3 yes Figure 1 The internal structure diagram of any operating platform of the small-volume precision platform shown is after removing the slide.

[0020] Figure 4 yes Figure 1 The three-dimensional structure diagram of the base in the small-volume precision platform is shown.

[0021] Figure 5 yes Figure 1 The three-dimensional structure diagram of the slide in the small-volume precision platform is shown.

[0022] Figure 6 yes Figure 1 The three-dimensional structural diagram of the guide rail assembly in the small-volume precision platform is shown.

[0023] Figure 7 is Figure 6 Enlarged view of the circle portion in the middle.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] Small volume precision platform

[0026] Operation platform, 110-base, 111-mounting groove, 112-groove bottom, 113-first groove wall, 1131-bearing table, 1132-step portion, 114-limiting piece, 120-sliding seat, 121- accommodating groove, 1211-groove top, 1212-second groove wall, 1213-limiting hole, 122-hanging portion, 130-motor assembly, 131-mover device, 1311-fixing seat, 1312-plug-in portion, 132-stator device, 1321-top surface, 1322-side wall, 140-detection assembly, 141-ruler, 142-reading head, 150-guide rail assembly, 151-inner rail, 152-outer rail, 153-roller device, 1531-roller mounting plate, 1532-roller, 1533-positioning hole, 154-V-shaped groove, 160-positioning seat, 170-connection hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is described in detail below by combining with the drawings and specific embodiments.

[0028] Here, it needs to be explained that, in order to avoid being blurred by unnecessary details, only the structure and / or processing steps closely related to the scheme of the utility model are shown in the drawings, and other details not closely related to the utility model are omitted.

[0029] In addition, it also needs to be explained that the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0030] Please refer to Figures 1-7As shown, a small volume precision platform 200 comprises two operation platforms 100, the operation platform 100 comprises a base 110, a sliding seat 120 and at least two motor assemblies 130, the base 110 is slidingly connected with the sliding seat 120, the two operation platforms 100 are stacked along the direction perpendicular to the base 110, the base 110 is provided with a mounting groove 111, the sliding seat 120 covers the mounting groove 111, the motor assembly 130 is parallelly installed in the mounting groove 111, the motor assembly 130 comprises a rotor device 131 and a stator device 132, the rotor device 131 is fixedly connected with the mounting groove 111, the stator device 132 is fixedly connected with the sliding seat 120, and the stator device 132 can slide relative to the rotor device 131.

[0031] In the small volume precision platform 200, the motor assemblies 130 are parallelly installed in the mounting groove 111, which significantly improves the space utilization, reduces the horizontal and vertical space occupation, and makes the whole small volume precision platform 200 more compact. At the same time, by increasing the number of motor assemblies 130, the small volume precision platform 200 can carry a larger load, ensuring the stability and reliability of the platform operation. In addition, the parallel work of multiple motor assemblies 130 can significantly improve the response speed of the small volume precision platform 200. When it is necessary to change the motion state of the small volume precision platform 200 such as acceleration, deceleration and change of direction, each motor assembly 130 can almost simultaneously receive instructions and start adjusting the output, thereby realizing faster response.

[0032] Further, the motor assemblies 130 are provided with motor baffles 133 at both ends, the motor baffles 133 cover the baffles, and the motor baffles 133 can prevent dust or other contaminants from entering the motor assemblies 130, effectively protecting the motor assemblies 130 and prolonging the service life of the motor assemblies 130.

[0033] Further, along the width direction of the motor assembly 130, any two adjacent motor assemblies 130 are arranged side by side and closely in the mounting groove 111 of the base 110, so that the operation platform 100 and the whole small volume precision platform 200 can maintain a small volume and adapt to the needs of smaller space.

[0034] Further, the mover device 131 includes a fixed seat 1311 and a plug-in part 1312 extending perpendicularly to the fixed seat 1311 towards the sliding seat 120, the fixed seat 1311 is fixedly connected with the base 110, the stator device 132 includes a top surface 1321 and side walls 1322 extending perpendicularly to the top surface 1321 and from both sides of the top surface 1321 towards the base 110, the top surface 1321 and the side walls 1322 form a clamping groove, the plug-in part 1312 is inserted into the clamping groove, and the top surface 1321 is fixedly connected with the sliding seat 120. The fixed connection of the fixed seat 1311 with the base 110 and the fixed connection of the top surface 1321 with the sliding seat 120 provide a stable foundation for the entire operation platform 100, the design of the plug-in part 1312 inserted into the clamping groove realizes the precise butt joint between the mover device 131 and the stator device 132, and further enhances the stability of the structure through the limiting action of the clamping groove. Through the design of the vertically extending plug-in part 1312 and the clamping groove, the entire small-size precision platform 200 is more compact in structure and occupies less space, which is particularly important for devices or environments with limited space.

[0035] The operation platform 100 further includes a guide rail assembly 150, the guide rail assembly 150 includes an outer rail 152 and an inner rail 151, the outer rail 152 is fixedly connected with the base 110, and a roller device 153 is arranged between the outer rail 152 and the inner rail 151, the outer rail 152 slides relative to the inner rail 151 through the roller device 153.

[0036] The roller device 153 rolls between the outer rail 152 and the inner rail 151, and the rolling friction has smaller resistance than the sliding friction, thereby reducing energy loss and the generation of friction heat, at the same time, the wear of the guide rail assembly 150 is mainly concentrated on the roller 1532, and the roller 1532 has excellent material and strong wear resistance, so the overall wear is small, this design can significantly prolong the service life of the guide rail assembly 150 and reduce the wear caused by friction. And the design that the outer rail 152 and the inner rail 151 relatively slide through the roller 1532 makes the movement precision of the small-size precision platform 200 higher, which can reach micron-level precision, which is particularly important for devices that need high-precision positioning.

[0037] The roller device 153 comprises a roller mounting plate 1531 and rollers 1532. The roller mounting plate 1531 is provided with a plurality of positioning holes 1533 arranged in series. The rollers 1532 are installed in the positioning holes 1533. In the sliding direction of the guide rail assembly 150, the axes of two adjacent rollers 1532 are perpendicular to each other. The outer rail 152 and the inner rail 151 are both provided with V-shaped grooves 154, and the rollers 1532 abut against the V-shaped grooves 154. This arrangement helps to achieve smoother and more stable movement. The design of the V-shaped grooves 154 helps to maximize the filling of the joints, making the contact between the rollers 1532 and the inner rail 151 and the outer rail 152 more intimate, thereby improving the rigidity and stability of the guide rail assembly 150. Further, the mounting groove 111 comprises a groove bottom 112 and a first groove wall 113 extending from both sides of the groove bottom 112 towards the top surface 1321 perpendicularly to the groove bottom 112. The first groove wall 113 is provided with a bearing platform 1131 at the end away from the groove bottom 112, and the outer rail 152 is installed on the bearing platform 1131. The first groove wall 113 in the mounting groove 111 is provided with a bearing platform 1131 at the end away from the groove bottom 112, and the outer rail 152 is installed on the bearing platform 1131. This design enhances the support force of the outer rail 152, making the outer rail 152 more stable when bearing load and less likely to deform or displace.

[0038] Further, the top surface 1321 comprises a receiving groove 121, which comprises a groove top 1211 and a second groove wall 1212 extending from both sides of the groove top 1211 towards the base 110 perpendicularly to the groove top 1211. The second groove wall 1212 is at least partially inserted into the mounting groove 111, and the outer side of the second groove wall 1212 is provided with a mounting portion 122, and the inner rail 151 is fixedly connected with the mounting portion 122. The mounting portion 122 on the outer side of the second groove wall 1212 provides a stable mounting point for the inner rail 151, allowing the inner rail 151 to be firmly fixed on the top surface 1321, further enhancing the structural stability of the entire small-volume precision platform 200. The vertical extension design of the mounting groove 111 and the receiving groove 121 makes the entire small-volume precision platform 200 more compact in structure and occupies less space. This compact structure helps to save the space occupied by the equipment and improves the space utilization rate.

[0039] The operation platform 100 further comprises a detection assembly 140, which comprises a grating ruler 141 and a reading head 142. The first groove wall 113 on one side is provided with a stepped portion 1132, the reading head 142 is fixedly connected with the stepped portion 1132, and the grating ruler 141 is fixedly connected with the side of the second groove wall 1212 close to the stepped portion 1132 and facing the first groove wall 113. The reading head 142 reads the scale on the grating ruler 141 to monitor the moving distance of the sliding seat 120 relative to the base 110 in real time. The fixed connection of the reading head 142 with the stepped portion 1132 and the fixed connection of the grating ruler 141 with the second groove wall 1212 ensure that the reading head 142 can continuously and stably read the data on the grating ruler 141. The grating ruler 141 is a high-precision measuring element, and the scale thereon is fine and accurate. The reading head 142 can realize accurate measurement of the moving distance of the sliding seat 120 by reading the data on the grating ruler 141, which meets the demand for high-precision positioning.

[0040] Further, the small-volume precision platform 200 comprises at least two operation platforms 100, the operation platforms 100 are stacked in a direction perpendicular to the base 110, and the sliding directions of the sliding seats 120 of any two adjacent operation platforms 100 are perpendicular. By stacking the operation platforms 100 in the vertical direction, the displacement of the small-volume precision platform 200 in multiple directions can be realized, the control flexibility of the small-volume precision platform 200 is improved, and the application range is expanded.

[0041] Further, the second groove wall 1212 on the side away from the stepped portion 1132 is provided with a limiting hole 1213, and the first groove wall 113 on the side close to the limiting hole 1213 is provided with a limiting piece 114. The limiting piece 114 extends into the limiting hole 1213 to limit the sliding range of the sliding seat 120 relative to the base 110. The cooperation of the limiting piece 114 and the limiting hole 1213 can accurately limit the sliding distance or range of the sliding seat 120 relative to the base 110. This ensures that the sliding seat 120 moves in a predetermined path, prevents excessive sliding or misalignment, and thus improves the stability and reliability of the entire small-volume precision platform 200.

[0042] Further, the bottom 112 of the mounting groove 111 is provided with a positioning seat 160, and the mover device 131 is fixedly connected with the positioning seat 160. In this way, the mover device 131 can be quickly and fixedly connected with the mounting groove 111, and the assembly is more convenient. The mover device 131 is fixedly connected with the mounting groove 111 through the positioning seat 160, so that the installation position can be quickly determined, and the disassembly and assembly are more convenient and fast during maintenance.

[0043] In the embodiment, the bearing table 1131, the mounting part 122, the outer rail 152 and the inner rail 151 are all provided with the connection holes 170 arranged in series, the inner rail 151 is fixedly connected with the base 110 by the fasteners penetrating through the connection holes 170 on the bearing table 1131 and the inner rail 151, and the outer rail 152 is fixedly connected with the sliding base 120 by the fasteners penetrating through the connection holes 170 on the mounting part 122 and the outer rail 152. The connection mode can effectively resist external load and vibration, and ensure that the equipment or machine remains stable during operation, and reduces faults caused by looseness or deformation. The connection holes 170 arranged in series allow selection and adjustment at multiple positions, so as to more accurately control the mounting position and angle of the inner rail 151 and the outer rail 152. This helps to ensure accurate alignment between the components in the operation platform 100, and improves the operation accuracy and reliability of the whole small-volume precision platform 200.

[0044] In summary, in the small-volume precision platform 200, the operation platform 100 includes at least two motor assemblies 130, and the motor assemblies 130 are arranged in parallel, which significantly improves the space utilization, reduces the horizontal and vertical space occupation, and makes the whole small-volume precision platform 200 more compact. By increasing the number of motor assemblies 130, the small-volume precision platform 200 can carry a larger load, and ensure the stability and reliability of the small-volume precision platform 200 during operation. In addition, the parallel operation of the multiple motor assemblies 130 can significantly improve the response speed of the small-volume precision platform 200. The design of the plug-in part 1312 inserted into the clamping groove realizes the accurate butt joint between the mover device 131 and the stator device 132, and further enhances the stability of the structure through the limiting action of the clamping groove. The design of the vertically extending plug-in part 1312 and the clamping groove makes the whole small-volume precision platform 200 more compact in structure and occupies less space. At the same time, the roller device 153 is arranged to roll between the outer rail 152 and the inner rail 151, and the rolling friction has smaller resistance than the sliding friction, thereby reducing energy loss and the generation of friction heat. At the same time, the wear of the guide rail assembly 150 is mainly concentrated on the roller 1532, and the roller 1532 has excellent material and strong wear resistance, so the overall wear is small. This design can significantly prolong the service life of the guide rail assembly 150 and reduce the wear caused by friction. In addition, the relative sliding design of the outer rail 152 and the inner rail 151 through the roller 1532 makes the small-volume precision platform 200 have high movement accuracy.

[0045] The above embodiments are only used to illustrate the technical solutions of the present application and not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A small volume precision platform, characterized in that, The utility model provides a kind of two operating platforms (100), the operating platform (100) includes base (110), slide (120) and at least two motor assemblies (130), two the operating platform (100) is stacked along the direction perpendicular to the base (110), the sliding direction of the slide (120) of any adjacent two operating platform (100) is perpendicular, the base (110) is slidably connected with the slide (120), the base (110) is equipped with mounting groove (111), the slide (120) covers the mounting groove (111), two the motor assemblies (130) are installed in the mounting groove (111) in parallel, the motor assembly (130) includes rotor device (131) and stator device (132), the rotor device (131) is fixedly connected with the mounting groove (111), the stator device (132) is fixedly connected with the slide (120), the stator device (132) can slide relative to the rotor device (131), the rotor device (131) includes fixed seat (1311) and the plug-in part (1312) extending towards the slide (120) direction perpendicular to the fixed seat (1311), the fixed seat (1311) is fixedly connected with the base (110), the stator device (132) includes top surface (1321) and side wall (1322) perpendicular to the top surface (1321) and from the top surface (1321) both sides extend towards the base (110) direction, the top surface (1321) and the side wall (1322) form clamping groove, the plug-in part (1312) is inserted into the clamping groove, the top surface (1321) is fixedly connected with the slide (120), the operating platform (100) further includes guide rail assembly (150), the guide rail assembly (150) includes outer rail (152) and inner rail (151), the outer rail (152) is fixedly connected with the base (110), and the outer rail (152) is slidably connected with the inner rail (151) between the outer rail (152) and the inner rail (151) and is equipped with roller device (153), and the outer rail (152) is slidably connected with the inner rail (151) by the roller device (153).

2. The small volume precision stage of claim 1, wherein, In the width direction of the motor assembly (130), any two adjacent motor assemblies (130) are arranged side by side and closely in the mounting groove (111).

3. The small volume precision stage of claim 1, wherein, The mounting groove (111) includes groove bottom (112) and first groove wall (113) perpendicular to the groove bottom (112) and extending from both sides of the groove bottom (112) towards the top surface (1321) direction, the first groove wall (113) is equipped with bearing table (1131) on the end away from the groove bottom (112), and the outer rail (152) is installed on the bearing table (1131).

4. The small volume precision stage of claim 3, wherein, The sliding seat (120) comprises a receiving groove (121), the receiving groove (121) comprises a groove top (1211) and a second groove wall (1212) which is perpendicular to the groove top (1211) and extends from both sides of the groove top (1211) towards the base (110), the second groove wall (1212) is at least partially inserted into the mounting groove (111), a hanging part (122) is arranged outside the second groove wall (1212), and the inner rail (151) is fixedly connected with the hanging part (122).

5. The small volume precision stage of claim 4, wherein, The operation platform (100) further comprises a detection assembly (140), the detection assembly (140) comprises a grating ruler (141) and a reading head (142), one side of the first groove wall (113) is provided with a stepped part (1132), the reading head (142) is fixedly connected with the stepped part (1132), and the grating ruler (141) is fixedly connected with one side of the second groove wall (1212) which is close to the stepped part (1132) and faces the first groove wall (113).

6. The small volume precision stage of claim 5, wherein, The first groove wall (113) on the side away from the stepped part (1132) is provided with a limiting hole (1213), the first groove wall (113) on the side close to the limiting hole (1213) is provided with a limiting piece (114), the limiting piece (114) extends into the limiting hole (1213) to limit the sliding range of the sliding seat (120) relative to the base (110).

7. The small volume precision stage of claim 6, wherein, The bearing table (1131), the hanging part (122), the outer rail (152) and the inner rail (151) are all provided with continuously arranged connecting holes (170), fasteners are passed through the connecting holes (170) on the bearing table (1131) and the inner rail (151) to fixedly connect the inner rail (151) with the base (110), and fasteners are passed through the connecting holes (170) on the hanging part (122) and the outer rail (152) to fixedly connect the outer rail (152) with the sliding seat (120).

8. The small volume precision stage of claim 1, wherein, The roller device (153) comprises a roller mounting plate (1531) and rollers (1532), the roller mounting plate (1531) is provided with a plurality of continuously arranged positioning holes (1533), the rollers (1532) are mounted in the positioning holes (1533), the axes of two adjacent rollers (1532) are perpendicular to each other in the sliding direction of the guide rail assembly (150), V-shaped grooves (154) are arranged in the outer rail (152) and the inner rail (151), and the rollers (1532) abut against the V-shaped grooves (154).

9. The small volume precision stage of claim 3, wherein, A positioning seat (160) is arranged on the groove bottom (112) in the mounting groove (111), and the mover device (131) is fixedly connected with the positioning seat (160).

10. The small volume precision platform of claim 1, wherein, Motor baffles (133) are arranged at both ends of the motor assembly (130) in the length direction of the motor assembly (130), and the motor baffles (133) cover the side wall (1322).

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