High-precision double-station linear module

Abstract

The utility model discloses a high-precision double-station linear module and belongs to the field of linear modules, the high-precision double-station linear module comprises a base and a moving block, the interior of the moving block is rotatably connected with a threaded sleeve, the exterior of the threaded sleeve is provided with a limiting hole, the interior of the moving block is slidably connected with a limiting block, and the limiting block is clamped in the limiting hole. A fixed block is fixedly connected to the exterior of the limiting block, a sliding plate is connected to the interior of the movable block in a sliding mode, a movable groove is formed in the sliding plate, the fixed block is connected to the interior of the movable groove in a sliding mode, stress plates are fixedly connected to the two ends of the sliding plate, and the movable groove is in a V shape. And the stress plate and the base collide and slide, and the threaded sleeve rotates for a period of time, so that certain buffer protection can be performed when the movable block is in contact with the base during the period of rotation of the threaded sleeve, and the stability of the device during use is improved.

Description

Technical Field

[0001] The utility model relates to the field of linear modules, and more specifically, to a high-precision double-station linear module. Background Technique

[0002] As a common drive module in automated production, the linear module has the advantages of stable operation and fast response.

[0003] Chinese Patent Authorization Publication No.: CN207975210U provides a double-station linear module. The solution includes a fixed base, a ball screw, two slide rails, two sliding devices, and two end caps. Among them, each sliding device includes: a drive motor, a motor mounting plate, a slide table, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, a fourth synchronous pulley, a first synchronous belt, a second synchronous belt, a ball nut, a transmission shaft, a bearing part, and four sliders with the same structure. The drive motor is connected to the first synchronous pulley. The second synchronous pulley is connected to the first synchronous pulley through the first synchronous belt. The second synchronous pulley is connected to the third synchronous pulley. The third synchronous pulley is connected to the fourth synchronous pulley through the second synchronous belt. The fourth synchronous pulley is sleeved on the ball screw through the transmission shaft.

[0004] However, in the above patent, when the slide table moves to the end of the base, one side of the slide table will collide slightly with the base. Although the collision force is relatively small, due to the lack of a buffer protection mechanism, the slide table and the base will still be damaged after long-term use, thus reducing the overall service life of the device, which is inconvenient and has certain limitations in use.

[0005] Therefore, a high-precision double-station linear module is proposed for the above problems. Summary of the Utility Model

[0006] 1. Technical Problems to be Solved

[0007] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a high-precision double-station linear module to solve the problems put forward in the above background technique.

[0008] 2. Technical Solutions

[0009] To solve the above problems, the utility model adopts the following technical solutions.

[0010] High-precision double-station linear module, including a base and a moving block. A threaded sleeve is rotatably connected inside the moving block. A limiting hole is provided on the outer part of the threaded sleeve. A limiting block is slidably connected inside the moving block. The limiting block is clamped inside the limiting hole. A fixed block is fixedly connected to the outer part of the limiting block. A sliding plate is slidably connected inside the moving block. An activity groove is provided inside the sliding plate. The fixed block is slidably connected inside the activity groove. Force-receiving plates are fixedly connected to both ends of the sliding plate. The activity groove is V-shaped.

[0011] Further, a connecting rod is fixedly connected to the outer part of the limiting block. A spring is sleeved on the outer part of the connecting rod. The spring is located between the limiting block and the inside of the moving block.

[0012] Further, the connecting rod is slidably connected to the moving block.

[0013] Further, a placement plate is fixedly connected to the outer part of the moving block.

[0014] Further, a screw rod is rotatably connected above the base. The outer wall of the screw rod is threadedly connected to the inside of the threaded sleeve. A limiting rod is fixedly connected above the base. The moving block is slidably connected to the limiting rod.

[0015] Further, a motor is fixedly connected to the outer part of the base. The output end of the motor passes through the base and is fixedly connected to one end of the screw rod.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] In this solution, when the force-receiving plate collides with the side of the base, the sliding plate will slide inside the moving block. During the process of the sliding plate sliding inside the moving block, the inner wall of the activity groove will squeeze the outer wall of the fixed block. Since the activity groove is a V-shaped structure, the limiting block will slide towards the outside of the moving block. During the process of the limiting block sliding towards the outside of the moving block, through the elastic expansion and contraction of the spring, one end of the limiting block always fits against the outer wall of the threaded sleeve. As the threaded sleeve rotates continuously, when the limiting hole rotates to directly below the limiting block, the spring in the contracted state will reset, causing the limiting block to be clamped inside the limiting hole again. At this time, when the screw rod rotates in the reverse direction, it will continue to drive the moving block to move inside the base. Through this design, when the moving block moves to the end of the base, due to the collision and sliding between the force-receiving plate and the base, and the threaded sleeve rotates for a period of time. The rotation time of the threaded sleeve can provide a certain buffer protection when the moving block contacts the base, thereby improving the stability of the device during use. Description of the drawings

[0019] Figure 1 Schematic three - dimensional structure diagram of the present utility model;

[0020] Figure 2 Schematic structure diagram of the connection relationship between the moving block and the force - receiving plate in the present utility model;

[0021] Figure 3 Schematic internal structure diagram of the moving block in the present utility model;

[0022] Figure 4 Schematic diagram of the positional relationship between the limiting hole, the limiting block and the moving block in the present utility model.

[0023] Description of the reference numerals in the figure:

[0024] 1. Base; 11. Screw rod; 12. Limiting rod; 13. Motor; 14. Moving block; 15. Threaded sleeve; 16. Limiting hole; 17. Limiting block; 18. Fixed block; 19. Connecting rod; 2. Spring; 21. Sliding plate; 22. Activity slot; 23. Force - receiving plate; 24. Placing plate. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Example:

[0029] Please refer to Figures 1-4 , a high-precision double-station linear module, including a base 1 and a moving block 14. A threaded sleeve 15 is rotatably connected inside the moving block 14. A limiting hole 16 is opened outside the threaded sleeve 15. A limiting block 17 is slidably connected inside the moving block 14. The limiting block 17 is clamped inside the limiting hole 16. A fixing block 18 is fixedly connected to the outside of the limiting block 17. A sliding plate 21 is slidably connected inside the moving block 14. An activity groove 22 is opened inside the sliding plate 21. The fixing block 18 is slidably connected inside the activity groove 22. Force-receiving plates 23 are fixedly connected to both ends of the sliding plate 21. The activity groove 22 is V-shaped. In this solution, when the force-receiving plate 23 collides with the side of the base 1, the sliding plate 21 will slide inside the moving block 14. During the process of the sliding plate 21 sliding inside the moving block 14, the inner wall of the activity groove 22 will squeeze the outer wall of the fixing block 18. After the fixing block 18 is squeezed, due to the V-shaped structure of the activity groove 22, the limiting block 17 will slide towards the outside of the moving block 14. During this process, the spring 2 will be squeezed by the limiting block 17 and undergo elastic deformation to store a certain amount of elastic potential energy. During the process of the limiting block 17 sliding towards the outside of the moving block 14, the limiting block 17 will separate from the inside of the limiting hole 16, thereby releasing the clamping between the limiting block 17 and the limiting hole 16.

[0030] Please refer to Figures 1-4 , a connecting rod 19 is fixedly connected to the outside of the limiting block 17. A spring 2 is sleeved outside the connecting rod 19. The spring 2 is located between the limiting block 17 and the inside of the moving block 14. In this solution, the connecting rod 19 plays a role in connecting the spring 2 and the limiting block 17.

[0031] Please refer to Figures 1-4 , the connecting rod 19 is slidably connected to the moving block 14. In this solution, through the sliding connection between the connecting rod 19 and the moving block 14, the limiting block 17 can squeeze the spring 2 and cause the spring 2 to undergo elastic deformation.

[0032] Please refer to Figures 1-4 , a placing plate 24 is fixedly connected to the outside of the moving block 14. In this solution, the placing plate 24 is used for placing workpieces.

[0033] Please refer to Figures 1-4, a screw rod 11 is rotatably connected above the base 1. The outer wall of the screw rod 11 is threadedly connected to the inside of the threaded sleeve 15. A limiting rod 12 is fixedly connected above the base 1. The moving block 14 is slidably connected to the limiting rod 12. In this solution, when the screw rod 11 rotates, it will drive the moving block 14 to move inside the base 1. Since the threaded sleeve 15 is slidably connected to the limiting rod 12, the problem that the moving block 14 deflects due to excessive friction between the threaded sleeve 15 and the screw rod 11 can be avoided.

[0034] Please refer to Figures 1-4 , a motor 13 is fixedly connected to the outside of the base 1. The output end of the motor 13 passes through the base 1 and is fixedly connected to one end of the screw rod 11. In this solution, the motor 13 provides power for the rotation of the screw rod 11.

[0035] Working principle: After the motor 13 is started, it will drive the screw rod 11 to rotate. When the screw rod 11 rotates, it will drive the moving block 14 to move inside the base 1. Since the threaded sleeve 15 is slidably connected to the limiting rod 12, the problem that the moving block 14 deflects due to excessive friction between the threaded sleeve 15 and the screw rod 11 can be avoided. As the moving block 14 continuously moves inside the base 1, when the force-receiving plate 23 collides with the side of the base 1, the sliding plate 21 will slide inside the moving block 14. During the process of the sliding plate 21 sliding inside the moving block 14, the inner wall of the movable groove 22 will squeeze the outer wall of the fixed block 18. After the fixed block 18 is squeezed, since the movable groove 22 is a V-shaped structure, the limiting block 17 will slide in the direction of the outside of the moving block 14. During this process, the spring 2 will be squeezed by the limiting block 17 and undergo elastic deformation to store a certain amount of elastic potential energy. During the process of the limiting block 17 sliding in the direction of the outside of the moving block 14, the limiting block 17 will separate from the inside of the limiting hole 16, thereby releasing the clamping connection between the limiting block 17 and the limiting hole 16. After the clamping connection between the limiting block 17 and the limiting hole 16 is temporarily released, the threaded sleeve 15 will rotate inside the moving block 14. Through the elastic expansion and contraction of the spring 2, one end of the limiting block 17 is always in contact with the outer wall of the threaded sleeve 15. As the threaded sleeve 15 continuously rotates, when the limiting hole 16 rotates to directly below the limiting block 17, the contracted spring 2 will reset, causing the limiting block 17 to be re-clamped inside the limiting hole 16. At this time, when the screw rod 11 rotates in the reverse direction, it will continue to drive the moving block 14 to move inside the base 1.

[0036] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. High-precision double-station linear module, including a base (1) and a moving block (14), characterized in that: A threaded sleeve (15) is rotatably connected inside the moving block (14). A limiting hole (16) is formed on the outer side of the threaded sleeve (15). A limiting block (17) is slidably connected inside the moving block (14). The limiting block (17) is clamped inside the limiting hole (16). A fixing block (18) is fixedly connected to the outer side of the limiting block (17). A sliding plate (21) is slidably connected inside the moving block (14). An activity groove (22) is formed inside the sliding plate (21). The fixing block (18) is slidably connected inside the activity groove (22). Force-bearing plates (23) are fixedly connected to both ends of the sliding plate (21). The activity groove (22) is V-shaped.

2. The high-precision double-station linear module according to claim 1, wherein: A connecting rod (19) is fixedly connected to the outer side of the limiting block (17). A spring (2) is sleeved on the outer side of the connecting rod (19). The spring (2) is located between the limiting block (17) and the inside of the moving block (14).

3. The high-precision double-station linear module according to claim 2, wherein: The connecting rod (19) is slidably connected to the moving block (14).

4. The high-precision double-station linear module according to claim 1, wherein: A placing plate (24) is fixedly connected to the outer side of the moving block (14).

5. The high-precision double-station linear module according to claim 1, wherein: A screw rod (11) is rotatably connected above the base (1). The outer wall of the screw rod (11) is in threaded connection with the inside of the threaded sleeve (15). A limiting rod (12) is fixedly connected above the base (1). The moving block (14) is slidably connected to the limiting rod (12).

6. The high-precision double-station linear module according to claim 5, characterized in that: A motor (13) is fixedly connected to the outer side of the base (1). The output end of the motor (13) passes through the base (1) and is fixedly connected to one end of the screw rod (11).

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