Linear moving platform

Abstract

The utility model provides a linear moving platform, including support platform, drive subassembly and transmission device, drive subassembly includes drive motor, transmission device includes screw and nut suite, drive motor and screw are connected, drive motor drive screw to rotate, nut suite is sleeved outside screw, nut suite can slide relative to screw, and the screw is connected with the support platform. A guide rail assembly is arranged on the side, facing the nut suite, of the support platform and comprises an inner rail bar and an outer rail bar, the outer rail bar is arranged on the outer side of the inner rail bar in a sleeving mode, the outer rail bar is in sliding connection with the inner rail bar, the inner rail bar is fixedly connected with the support platform, and the main beam is perpendicular to the screw and fixedly connected with the outer rail bar. The nut kit is fixedly connected with the support platform, a supporting base is installed on the side, facing the screw, of the main beam, a bearing is arranged in the supporting base, the screw is inserted into the bearing, the end, away from the driving motor, of the screw is rotationally connected with the main beam, and the nut kit drives the support platform to move along the screw.

Description

Technical Field

[0001] This utility model relates to the field of linear transmission, and in particular to a linear motion platform that is highly versatile, slides smoothly, and is easy to assemble. Background Technology

[0002] Currently, many devices need to move linearly within a certain range during operation. The current solution is often to make slight modifications to the device structure. However, this is often time-consuming and labor-intensive when dealing with devices with heavy loads. In addition, many mobile platforms become unstable when carrying heavy loads, and are prone to shaking during movement.

[0003] In view of this, it is indeed necessary to provide a platform that is easy to install with the equipment, has a stable structure, and can support the equipment for smooth linear movement, in order to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a linear moving platform with a stable structure and smooth sliding.

[0005] To achieve the above objectives, this utility model provides a linear slide table, including a support platform, a drive assembly, and a transmission device. The drive assembly includes a drive motor, and the transmission device includes a screw and a nut assembly. The drive motor is connected to the screw and drives the screw to rotate. The nut assembly is sleeved on the outside of the screw and can slide relative to the screw. The support platform has a guide rail assembly on the side facing the nut assembly. The guide rail assembly includes an inner rail and an outer rail. The outer rail is sleeved on the outside of the inner rail and is slidably connected to the inner rail. The inner rail is fixedly connected to the support platform. The linear sliding platform also includes a main beam, which is perpendicular to the screw and fixedly connected to the outer rail. The nut assembly is fixedly connected to the support platform. A support seat is installed on the side of the main beam facing the screw, and a bearing is provided in the support seat. The screw is inserted into the bearing, and the end of the screw away from the drive motor is rotatably connected to the main beam. The nut assembly drives the support platform to move along the screw.

[0006] As a further improvement of this utility model, the linear moving platform also includes a limiting component, which includes a limiting photoelectric sensor and a photoelectric sensor plate. The limiting photoelectric sensor is fixedly connected to the outer rail, and the photoelectric sensor plate is fixedly connected to the support platform. When the photoelectric sensor plate slides into the limiting photoelectric sensor, the support platform stops sliding.

[0007] As a further improvement of this utility model, the driving component further includes a driver, which is electrically connected to the driving motor and drives the driving motor to operate.

[0008] As a further improvement of this utility model, the nut kit includes a base and a nut body. The base has a through hole, and the nut body includes a base and a sleeve extending to one side perpendicular to the base. The sleeve is inserted into the through hole, and when the screw rotates, the nut body slides relative to the screw.

[0009] As a further improvement of this utility model, the support platform is provided with a number of fixing members, the movable part is loaded on the support platform, and the fixing members fix the position of the movable part.

[0010] As a further improvement of this utility model, the support platform includes a length direction and a width direction, the screw extends along the length direction, and the main beam is arranged along the width direction of the support platform, the length of the main beam being greater than the width of the support platform.

[0011] As a further improvement of this utility model, the linear motion platform further includes a support rod and a mounting strip. The mounting strip is fixedly connected to the side of the outer rail facing away from the support platform. The side of the mounting strip facing the drive motor extends beyond the outer rail. The support rod is fixedly connected to the side of the mounting strip facing the drive motor. Both the drive motor and the driver are fixedly connected to the support rod.

[0012] In summary, the linear motion platform of this utility model achieves transmission through a screw and nut assembly, resulting in high transmission precision. This allows for accurate control of the platform's displacement and speed, facilitating precise control of minute displacements. The guide rail assembly design ensures high stability during movement. The connection between the main beam, outer rails, and screws further enhances structural stability, preventing the platform from swaying or shifting during operation and improving its operational reliability. The outer rails are fitted over the inner rails and slidably connected, effectively preventing lateral swaying and ensuring smooth movement. Attached Figure Description

[0013] The above-described technical content of this utility model and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution. In the drawings, the same reference numerals represent the same or similar elements.

[0014] Figure 1 This is a three-dimensional structural diagram of a linear motion platform according to an embodiment of the present invention.

[0015] Figure 2 yes Figure 1 The view showing the direction of the arrow on the linear motion platform.

[0016] Figure 3 yes Figure 2 A magnified view of the circled area.

[0017] Figure 4 yes Figure 1 An exploded view of the nut assembly in the linear motion platform shown.

[0018] Figure 5 yes Figure 1 The diagram shows the three-dimensional structure of the support base in the linear motion platform.

[0019] The reference numerals in the attached figures are explained as follows:

[0020] 100-Linear moving platform, 110-Bracket platform, 111-Fixed component, 120-Drive assembly, 121-Drive motor, 122-Driver, 130-Transmission device, 131-Screw, 132-Nut kit, 133-Base, 1331-Through hole, 134-Nut body, 1341-Base, 1342-Sleeve, 140-Limit assembly, 141-Limit photoelectric sensor, 142-Photoelectric sensor, 150-Guide rail assembly, 151-Inner rail, 152-Outer rail, 160-Main beam, 170-Support seat, 171-Bearing, 180-Support rod, 190-Mounting strip. Detailed Implementation

[0021] The following detailed description of the features and advantages of this utility model is sufficient to enable those skilled in the art to understand the technical content of this utility model and implement it accordingly. Furthermore, based on this specification, claims, and drawings, those skilled in the art can easily understand the related objectives and advantages of this utility model.

[0022] The terminology and expressions used herein are for descriptive purposes only, and this invention should not be limited to these terms and expressions. The use of these terms and expressions does not mean the exclusion of any illustrative and descriptive equivalent features (or parts thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, variations, and substitutions may also exist. Accordingly, the claims should be considered to cover all such equivalents.

[0023] Please see Figures 1-5As shown, a linear motion platform 100 provided by this utility model is used for moving a movable part (not shown). The linear motion platform 100 includes a support platform 110 and a drive assembly 120. The drive assembly 120 includes a drive motor 121 and a transmission device 130. The transmission device 130 includes a screw 131 and a nut assembly 132. The drive motor 121 is connected to the screw 131 and drives the screw 131 to rotate. The nut assembly 132 is sleeved on the outside of the screw 131 and can slide relative to the screw 131. The support platform 110 faces the nut assembly 132. A guide rail assembly 150 is provided on one side. The guide rail assembly 150 includes an inner rail 151 and an outer rail 152. The outer rail 152 is sleeved on the outside of the inner rail 151 and is slidably connected to the inner rail 151. The inner rail 151 is fixedly connected to the support platform 110. The linear moving platform 100 also includes a main beam 160. The main beam 160 is perpendicular to the screw 131 and is fixedly connected to the outer rail 152. The nut kit 132 is fixedly connected to the support platform 110. The end of the screw 131 away from the drive motor 121 is rotatably connected to the main beam 160. The nut kit 132 drives the support platform 110 to move along the screw 131.

[0024] The transmission is achieved through the screw 131 and nut assembly 132, which has high transmission accuracy and can accurately control the displacement and speed of the support platform 110. This is beneficial for achieving precise control of minute displacements. The design of the guide rail assembly 150 enables the moving platform to maintain high stability during movement. The connection between the main beam 160, the outer rail 152, and the screw 131 further enhances the stability of the structure, ensuring that the support platform 110 will not shake or deviate during operation, thus improving the operational reliability of the linear moving platform 100. The outer rail 152 is sleeved on the outside of the inner rail 151 and the two are slidably connected. This structure can effectively prevent the support platform 110 from swaying left and right during movement, ensuring smooth movement.

[0025] Furthermore, in this embodiment, the drive assembly 120 also includes a driver 122, which is electrically connected to the drive motor 121. The driver 122 drives the drive motor 121 to operate. The driver 122 precisely controls the forward and reverse rotation, rotation time and speed of the drive motor 121 to achieve precise control over the moving distance, moving direction and moving speed of the support platform 110.

[0026] In this embodiment, the linear motion platform 100 further includes a limiting component 140, which includes a limiting photoelectric sensor 141 and a photoelectric sensor 142. The limiting photoelectric sensor 141 is fixedly connected to the outer rail 152, and the photoelectric sensor 142 is fixedly connected to the support platform 110. When the support platform 110 slides, the photoelectric sensor 142 slides with the support platform 110. When the photoelectric sensor 142 slides into the limiting photoelectric sensor 141, the support platform 110 stops sliding. By setting the limiting component 140, the problem of the support platform 110 moving beyond the limit can be avoided, thus improving the safety performance of the linear motion platform 100 and preventing the support platform 110 from rigidly colliding with other structural components.

[0027] Furthermore, a support seat 170 is installed on the side of the main beam 160 facing the screw 131. A bearing 171 is housed within the support seat 170, and the screw 131 is inserted into the bearing 171. The support seat 170 and the bearing 171 provide additional support for the screw 131, reducing bending and vibration during rotation, making the screw 131 operate more smoothly, and thus improving the stability of the entire linear motion platform 100. Especially under high-speed or heavy-load conditions, it effectively prevents deformation of the screw 131 from affecting the accuracy and lifespan of the linear motion platform 100. Simultaneously, the use of the bearing 171 significantly reduces the coefficient of friction between the screw 131 and the support seat 170, reducing frictional force and thus lowering the wear rate of both the screw 131 and the support seat 170, extending their service life, and reducing maintenance costs and equipment downtime.

[0028] Furthermore, the nut assembly 132 includes a base 133 and a nut body 134. The base 133 has a through hole 1331. The nut body 134 includes a base 1341 and a sleeve 1342 extending to one side perpendicular to the base 1341. The sleeve 1342 is inserted into the through hole 1331. When the screw 131 rotates, the nut body 134 slides relative to the screw 131. The through hole 1331 in the base 133 cooperates with the sleeve 1342 of the nut body 134. This structure ensures the straightness of the nut body 134 when sliding axially on the screw 131. After the sleeve 1342 is inserted into the through hole 1331, it restricts the irregular movements such as skewing that the nut body 134 may produce to a certain extent, making the sliding of the nut body 134 along the screw 131 more stable and accurate, thereby improving the positioning accuracy and motion accuracy of the linear motion platform 100. Meanwhile, the base 133 provides a stable support foundation, and the structural design of the nut body 134 can withstand greater loads, preventing damage to the nut kit 132 due to uneven force distribution during the rotation of the screw 131, thus extending the service life of the linear motion platform 100. By changing the dimensions (such as the inner diameter) of the sleeve 1342, this nut kit 132 can accommodate screws 131 of different diameters. When it is necessary to use it with screws 131 of different specifications, only the nut body 134 (mainly the sleeve 1342 part) of the corresponding size needs to be replaced, while the base 133 is relatively universal, enhancing the versatility and flexibility of the entire linear motion platform 100.

[0029] Furthermore, in this embodiment, the support platform 110 is provided with a plurality of fixing members 111. The support platform 110 is used to load the component to be moved, and the fixing members 111 fix the position of the component to be moved. With the provision of a plurality of fixing members 111, the component to be moved can be quickly installed on the support platform 110, and the component to be moved can also be installed more stably on the support platform 110.

[0030] Furthermore, the support platform 110 includes both length and width directions. The screw 131 extends along the length direction, and the main beam 160 is arranged along the width direction of the support platform 110, with the length of the main beam 160 greater than the width of the support platform 110. By setting the length of the main beam 160 to be greater than the width of the support platform 110, the forces acting on the support platform 110 can be better distributed. When the screw 131 drives the support platform 110 to move, the main beam 160 can act as a lateral support beam, enhancing the stability of the support platform 110 in the width direction. For example, in scenarios where heavy objects need to be carried and long-distance linear movement is required, this arrangement can prevent the support platform 110 from swaying or overturning due to lateral forces, improving the operational stability of the linear movement platform 100. In addition, the longer length of the main beam 160 can provide it with a larger moment of inertia, giving it better bending resistance when bearing loads. When the support platform 110 bears a heavy object, the main beam 160 can better withstand the bending stress generated by the weight of the object, prevent the main beam 160 from deforming, and thus ensure the normal operation and accuracy of the entire mobile platform.

[0031] Furthermore, the linear motion platform 100 also includes a support rod 180 and a mounting strip 190. The mounting strip 190 is fixedly connected to the side of the outer rail 152 facing away from the support platform 110. The side of the mounting strip 190 facing the drive motor 121 extends beyond the outer rail 152. The support rod 180 is fixedly connected to the side of the mounting strip 190 facing the drive motor 121. Both the drive motor 121 and the driver 122 are fixedly connected to the support rod 180. Mounting the drive motor 121 and the driver 122 on the support rod 180 makes the layout of the drive assembly 120, the support platform 110, and other components more reasonable and compact. This avoids the space occupation and mutual interference problems that might occur if the drive motor 121 and the driver 122 were directly mounted on the support platform 110, improving the space utilization of the entire mobile platform and facilitating the installation of other components and the optimization of the overall structure.

[0032] In summary, the linear moving platform 100 of this utility model achieves transmission through the screw 131 and nut assembly 132, resulting in high transmission accuracy. This allows for precise control of the displacement and speed of the support platform 110, facilitating precise control of minute displacements. The design of the guide rail assembly 150 ensures high stability during movement. The connection between the main beam 160, the outer rail 152, and the screw 131 further enhances structural stability, ensuring that the support platform 110 does not sway or deviate during operation, thus improving the operational reliability of the linear moving platform 100. The outer rail 152 is fitted outside the inner rail 151, and the two are slidably connected. This structure effectively prevents the support platform 110 from swaying left and right during movement, ensuring smooth movement.

[0033] Similarly, it should be noted that although the present invention has been described with reference to the specific embodiments described above, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A linear moving platform for loading a piece to be moved, characterized in that, The linear moving platform comprises a support platform, a driving assembly and a transmission device, the driving assembly comprises a driving motor, the transmission device comprises a screw rod and a nut sleeve, the driving motor is connected with the screw rod, the driving motor drives the screw rod to rotate, the nut sleeve is sleeved outside the screw rod, the nut sleeve can slide relative to the screw rod, one side of the support platform towards the nut sleeve is provided with a guide rail assembly, the guide rail assembly comprises an inner rail and an outer rail, the outer rail is sleeved outside the inner rail, the outer rail is slidably connected with the inner rail, the inner rail is fixedly connected with the support platform, the linear moving platform further comprises a main beam, the main beam is perpendicular to the screw rod, the main beam is fixedly connected with the outer rail, the nut sleeve is fixedly connected with the support platform, one side of the main beam towards the screw rod is provided with a supporting seat, the supporting seat is provided with a bearing, the screw rod is inserted into the bearing, one end of the screw rod away from the driving motor is rotatably connected with the main beam, the nut sleeve drives the support platform to move along the screw rod.

2. The linear motion platform according to claim 1, wherein, The linear moving platform further comprises a limiting assembly, the limiting assembly comprises a limiting photoelectric and a photoelectric sensing sheet, the limiting photoelectric is fixedly connected with the outer rail, the photoelectric sensing sheet is fixedly connected with the support platform, when the photoelectric sensing sheet slides into the limiting photoelectric, the support platform stops sliding.

3. The linear motion platform according to claim 1, wherein, The driving assembly further comprises a driver, the driver is electrically connected with the driving motor, the driver drives the driving motor to operate.

4. The linear motion platform according to claim 1, wherein, The nut sleeve comprises a base and a nut body, the base is provided with a through hole, the nut body comprises a base and a sleeve extending to one side perpendicular to the base, the sleeve is inserted into the through hole, when the screw rod rotates, the nut body slides relative to the screw rod.

5. The linear motion platform of claim 1, wherein, The support platform is provided with a plurality of fixing members, the to-be-moved member is loaded on the support platform, and the fixing members fix the position of the to-be-moved member.

6. The linear motion platform of claim 1, wherein, The support platform comprises a length direction and a width direction, the screw rod extends along the length direction, the main beam is arranged along the width direction of the support platform, and the length of the main beam is greater than the width of the support platform.

7. The linear motion platform according to claim 3, wherein, The linear moving platform further comprises a supporting rod and a mounting strip, one side of the mounting strip away from the support platform is fixedly connected with the outer rail, the mounting strip exceeds the outer rail on the side towards the driving motor, the supporting rod is fixedly connected with the mounting strip on the side towards the driving motor, and the driving motor and the driver are fixedly connected with the supporting rod.

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