High-precision positioning and locking device

Abstract

The utility model discloses a high accuracy positioning locking device relates to machining technical field, the utility model discloses a supporting plate is provided with locking mechanism at the top, the locking mechanism includes the casing, the casing is located the above supporting plate, the casing one side is fixedly connected with the fixed plate, the fixed plate one side is fixedly connected with electric telescopic handle, and electric telescopic handle output end is through to the inner chamber of casing and is fixedly connected with the moving plate, and the moving plate one side is fixedly connected with the first support of evenly distributed, and the first support inner wall is swinged to be connected with the rotating plate through the rotating rod. The utility model discloses a moving plate is driven to link by electric telescopic handle, and the first support cooperations rotating plate and second support, and the combination T type sliding slot guide simultaneously makes the clamping plate realize accurate, reliable translation clamping action, and together ensures that the whole device has very high rigidity and stability when processing, provides solid basic guarantee for high accuracy processing.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a high-precision positioning and locking device. Background Technology

[0002] In the field of machining, high-precision positioning and locking devices play a crucial role in ensuring the machining accuracy of workpieces. During machining, workpieces require precise positioning and secure clamping to guarantee the accuracy of machined dimensions and surface quality. Existing positioning and locking devices are widely used in various machine tools, such as milling machines, lathes, and drilling machines, providing stable positioning and clamping support for the machining of different types of workpieces.

[0003] Traditional high-precision positioning and locking devices have two main drawbacks: First, traditional devices often rely on a single locking mechanism, which has insufficient locking force, poor uniformity, or weak stability, making it difficult to effectively resist vibrations and impacts during processing. This causes the device body to undergo micro-displacement on the machine tool track or the workpiece within the clamping mechanism. Second, traditional devices usually lack efficient positioning design. They either rely on a single, precise but slow adjustment mechanism, resulting in time-consuming and labor-intensive large-range movements, or they use simple slide rails, making it difficult to guarantee the final positional accuracy. They cannot meet the requirements of rapid positioning and micron-level fine adjustment, significantly reducing production efficiency and positioning accuracy.

[0004] To address these issues, we provide a high-precision positioning and locking device. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision positioning and locking device, which solves the problems of locking reliability, positioning efficiency and accuracy in the prior art by cooperating with the locking mechanism and the slide rail and threaded rod.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a high-precision positioning and locking device, comprising a support plate, on the top of which is a locking mechanism; the locking mechanism includes a housing located above the support plate, a fixed plate fixedly connected to one side of the housing, an electric telescopic rod fixedly connected to one side of the fixed plate, the output end of the electric telescopic rod penetrating into the inner cavity of the housing and fixedly connected to a movable plate, a uniformly distributed first bracket fixedly connected to one side of the movable plate, a rotating plate movably connected to the inner wall of the first bracket via a rotating rod, a second bracket movably connected to one side of the rotating plate via a rotating rod, a clamping plate fixedly connected to one side of the second bracket, and a sliding groove formed on the other side of the second bracket; a device for cooperating with the sliding groove is fixedly connected to one side of the fixed plate. The T-shaped track has a sliding groove that slides along it. A through slot is provided on one side of the housing to facilitate the movement of the second support. An electric telescopic rod is fixed to the outside of the housing by a fixing plate. Its output end drives the moving plate to move within the housing cavity. The moving plate pushes the first support, causing the rotating plate, the second support, and the clamping plate to move in tandem. The second support slides along the T-shaped track. Through the lever action of the rotating plate, the clamping plate clamps and releases the target object. The through slot provides space for the movement of the second support, enabling precise displacement and stable clamping of the clamping plate. Compared with the traditional manual locking method, the operation is more efficient and the clamping force is uniform and controllable. The cooperation between the T-shaped track and the sliding groove enhances the guiding nature of the clamping plate's movement, preventing deviation during clamping and ensuring high-precision positioning.

[0008] The present invention is further configured such that a movable frame is fixedly connected to the top of the support plate, a motor is fixedly connected to one side of the movable frame, the output end of the motor passes through the movable frame and is fixedly connected to a threaded rod, the other end of the threaded rod is movably connected to the movable frame, a slider is threadedly connected to the surface of the threaded rod, the top of the slider is fixedly connected to the housing, the motor is fixed to the movable frame and drives the threaded rod to rotate, the threaded slider drives the housing to move along the axial direction of the threaded rod, thereby realizing the overall displacement of the locking mechanism. The linear motion system driven by the motor can accurately control the position of the locking mechanism and adapt to the positioning requirements of workpieces in different positions.

[0009] The present invention is further configured such that a moving groove is provided on the inner wall of the moving frame, and a moving block is fixedly connected to the bottom of the slider to cooperate with the moving groove. The moving groove and the moving block are slidably connected. The moving groove on the inner wall of the moving frame and the moving block at the bottom of the slider are slidably engaged to provide guidance for the movement of the slider, prevent it from tilting or getting stuck during the movement, ensure the straightness and stability of the movement of the housing, and avoid positioning errors caused by offset.

[0010] The present invention is further configured such that a support frame is fixedly connected to both sides of the top of the support plate, a sliding rod is fixedly connected to the inner wall of the support frame, a sliding sleeve is slidably connected to the surface of the sliding rod, the top of the sliding sleeve is fixedly connected to the shell, the support frame fixes the sliding rod, the sliding sleeve is sleeved on the surface of the sliding rod and fixed to the shell, thereby assisting in supporting the shell and limiting its lateral sway, significantly enhancing the stability of the shell when it moves, especially under high-speed movement or heavy load conditions, it can effectively suppress vibration and displacement.

[0011] The present invention is further configured such that slide rails are fixedly connected to both sides of the bottom of the support plate, and limit rods are fixedly connected between the slide rails. Limit plates are slidably connected to both ends of the limit rods. The slide rails provide sliding tracks for the limit plates, and the limit rods pass through the limit plates to restrict their movement direction, forming a stable sliding structure. This provides a motion basis for the wedge blocks and other components below, ensuring the stability of subsequent extrusion actions.

[0012] The present invention is further configured such that a wedge block is fixedly connected to the bottom of the limiting plate, a vertical plate is fixedly connected to the bottom of the support plate, an electric push rod is fixedly connected to one side of the vertical plate, and a pressing plate is fixedly connected to the output end of the electric push rod. The electric push rod is fixed to the vertical plate and pushes the pressing plate when it extends. The pressing plate acts on the wedge block, causing the limiting plate to move along the slide rail, thereby achieving auxiliary locking of the object below and quickly applying additional locking force.

[0013] The present invention is further configured such that a connecting plate is fixedly connected to the bottom of the wedge block, and a spring is fixedly connected between the connecting plates. The connecting plates at the bottom of the wedge block are connected by the spring, which provides buffering and restoring force. When the extrusion plate is released, it assists the wedge block and the limiting plate to reset, avoids hard collision between the extrusion plate and the wedge block, and reduces mechanical wear.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model adopts an electric telescopic rod to drive the moving plate. The first bracket works in conjunction with the rotating plate and the second bracket, and is also guided by a T-shaped slide groove, so that the clamping plate can achieve precise and reliable translation and clamping action. Together, they ensure that the entire device has extremely high rigidity and stability during processing, providing a solid foundation for high-precision processing.

[0016] 2. This utility model utilizes a slide rail to quickly and easily move the entire device to the approximate position of the target area. The electric push rod drives the extrusion plate to act on the wedge block, generating a strong vertical locking force to firmly press and lock the entire device onto the machine tool track. Subsequently, an independent motor drives the precision threaded rod mechanism, which in turn drives the slider and locking mechanism to make minute movements. This step-by-step positioning method takes into account both operational convenience and positioning accuracy, and is the key to the device achieving high-precision positioning function. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a first-person view of a high-precision positioning and locking device.

[0019] Figure 2 This is a structural diagram of the locking mechanism in a high-precision positioning and locking device.

[0020] Figure 3 This is a structural diagram of a threaded rod in a high-precision positioning and locking device.

[0021] Figure 4 This is a structural diagram of a wedge block in a high-precision positioning and locking device.

[0022] Figure 5 This is a second-view diagram of the entire high-precision positioning and locking device.

[0023] In the attached diagram: 1. Support plate; 2. Locking mechanism; 21. Housing; 22. Fixing plate; 23. Electric telescopic rod; 24. Moving plate; 25. First bracket; 26. Rotating plate; 27. Second bracket; 28. Clamping plate; 3. Moving frame; 4. Motor; 5. Threaded rod; 6. Slider; 7. Wedge block; 8. Electric push rod; 9. Extrusion plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a high-precision positioning and locking device, including a support plate 1, and a locking mechanism 2 is provided on the top of the support plate 1. The locking mechanism 2 includes a housing 21, which is located above the support plate 1. A fixed plate 22 is fixedly connected to one side of the housing 21, and an electric telescopic rod 23 is fixedly connected to one side of the fixed plate 22. The output end of the electric telescopic rod 23 passes through the inner cavity of the housing 21 and is fixedly connected to a moving plate 24. A uniformly distributed first bracket 25 is fixedly connected to one side of the moving plate 24. A rotating plate 26 is movably connected to the inner wall of the first bracket 25 through a rotating rod. A second bracket 27 is movably connected to one side of the rotating plate 26 through a rotating rod. A clamping plate 28 is fixedly connected to one side of the second bracket 27. A sliding groove is provided on the other side of the second bracket 27. A T-shaped track for use with the sliding groove is fixedly connected to one side of the fixed plate 22. The sliding groove and the T-shaped track are slidably connected. A through groove for moving the second bracket 27 is provided on one side of the housing 21.

[0027] Specifically: The electric telescopic rod 23 is fixed to the outside of the housing 21 by the fixing plate 22. Its output end drives the moving plate 24 to move in the inner cavity of the housing 21. The moving plate 24 pushes the first bracket 25, so that the rotating plate 26, the second bracket 27 and the clamping plate 28 are linked. The second bracket 27 slides along the T-shaped track. Through the lever action of the rotating plate 26, the clamping plate 28 clamps and releases the target object. The through groove provides space for the movement of the second bracket 27, which can realize the precise displacement and stable clamping of the clamping plate 28. Compared with the traditional manual locking method, the operation is more efficient and the clamping force is uniform and controllable. The cooperation between the T-shaped track and the slide groove enhances the guidance of the movement of the clamping plate 28, avoids the deviation during clamping, and ensures high-precision positioning.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, a movable frame 3 is fixedly connected to the top of the support plate 1. A motor 4 is fixedly connected to one side of the movable frame 3. The output end of the motor 4 passes through the movable frame 3 and is fixedly connected to a threaded rod 5. The other end of the threaded rod 5 is movably connected to the movable frame 3. A slider 6 is threadedly connected to the surface of the threaded rod 5. The top of the slider 6 is fixedly connected to the housing 21. A movable groove is opened on the inner wall of the movable frame 3. A movable block that cooperates with the movable groove is fixedly connected to the bottom of the slider 6. The movable groove and the movable block are slidably connected. Support frames are fixedly connected to both sides of the top of the support plate 1. A sliding rod is fixedly connected to the inner wall of the support frame. A sliding sleeve is slidably connected to the surface of the sliding rod. The top of the sliding sleeve is fixedly connected to the housing 21. Slide rails are fixedly connected to both sides of the bottom of the support plate 1. A limit rod is fixedly connected between the slide rails. Limit plates are slidably connected to the surfaces of both ends of the limit rod. A wedge block 7 is fixedly connected to the bottom of the limit plate. A vertical plate is fixedly connected to the bottom of the support plate 1. An electric push rod 8 is fixedly connected to one side of the vertical plate. A pressing plate 9 is fixedly connected to the output end of the electric push rod 8. A connecting plate is fixedly connected to the bottom of the wedge block 7. A spring is fixedly connected between the connecting plates.

[0030] Specifically: Motor 4 is fixed to the movable frame 3, driving the threaded rod 5 to rotate. The threaded slider 6 drives the housing 21 to move axially along the threaded rod 5, realizing the overall displacement of the locking mechanism 2. The linear motion system driven by motor 4 can precisely control the position of the locking mechanism 2, adapting to the positioning requirements of workpieces in different positions. The moving groove on the inner wall of the movable frame 3 slides with the moving block at the bottom of the slider 6, providing guidance for the movement of the slider 6, preventing it from tilting or jamming during movement, ensuring the linearity and stability of the movement of the housing 21, and avoiding positioning errors caused by offset. The support frame fixes the sliding rod, and the sliding sleeve is fitted on the surface of the sliding rod and fixed to the housing 21, assisting in supporting the housing 21 and limiting its lateral sway, significantly enhancing the movement of the housing 21. Stability, especially under high-speed movement or heavy-load conditions, can effectively suppress vibration and displacement. The slide rail provides a sliding track for the limiting plate, and the limiting rod passes through the limiting plate to restrict its movement direction, forming a stable sliding structure. This provides a motion basis for components such as the wedge block 7 below, ensuring the stability of subsequent extrusion actions. The electric push rod 8 is fixed to the vertical plate and pushes the extrusion plate 9 when extended. The extrusion plate 9 acts on the wedge block 7, causing the limiting plate to move along the slide rail, thereby achieving auxiliary locking of the object below. Additional locking force can be applied quickly. The connecting plate at the bottom of the wedge block 7 is connected by a spring, which provides buffering and restoring force. When the extrusion plate 9 is released, it assists the wedge block 7 and the limiting plate to reset, avoiding hard collision between the extrusion plate 9 and the wedge block 7 and reducing mechanical wear.

[0031] The working principle of this utility model is as follows: After the high-precision positioning and locking device is moved to the approximate required position on the machine tool, the electric push rod 8 is activated. The electric push rod 8 extends and drives the extrusion plate 9 to move. The extrusion plate 9 extrudes the wedge block 7, subjecting it to a vertical force, and presses the track on the machine tool to lock the high-precision positioning and locking device on the machine tool. The motor 4 is activated, and the motor 4 drives the threaded rod 5 to rotate. The threaded rod 5 drives the slider 6 to move left and right. The slider 6 drives the locking mechanism 2 to move left and right to the specific required position. The workpiece to be processed is then placed into the locking mechanism 2. The electric telescopic rod 23 is activated, and the electric telescopic rod 23 extends and drives the moving plate 24 to move. The moving plate 24 drives the first bracket 25. The first bracket 25 rotates the rotating plate 26 through the rotating rod. The rotating plate 26 drives the second bracket 27. The second bracket 27 slides along the groove on the T-shaped track of the fixed plate 22. The clamping plate 28 on one side of the second bracket 27 moves accordingly to achieve the clamping action, thereby performing high-precision positioning and locking of the workpiece.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A high-precision positioning and locking device, comprising a support plate (1), characterized in that: The top of the support plate (1) is provided with a locking mechanism (2); The locking mechanism (2) includes a housing (21) located above the support plate (1). A fixed plate (22) is fixedly connected to one side of the housing (21). An electric telescopic rod (23) is fixedly connected to one side of the fixed plate (22). The output end of the electric telescopic rod (23) extends through the inner cavity of the housing (21) and is fixedly connected to a movable plate (24). A uniformly distributed first bracket (25) is fixedly connected to one side of the movable plate (24). A rotating plate (26) is movably connected to the inner wall of the first bracket (25) via a rotating rod. A second bracket (27) is movably connected to one side of the rotating plate (26) via a rotating rod. A clamping plate (28) is fixedly connected to one side of the second bracket (27). A sliding groove is provided on the other side of the second bracket (27). A T-shaped rail for use with the sliding groove is fixedly connected to one side of the fixed plate (22). The sliding groove is slidably connected to the T-shaped rail. A through groove for moving the second bracket (27) is provided on one side of the housing (21).

2. The high-precision positioning and locking device according to claim 1, characterized in that: A movable frame (3) is fixedly connected to the top of the support plate (1). A motor (4) is fixedly connected to one side of the movable frame (3). The output end of the motor (4) passes through the movable frame (3) and is fixedly connected to a threaded rod (5). The other end of the threaded rod (5) is movably connected to the movable frame (3). A slider (6) is threadedly connected to the surface of the threaded rod (5). The top of the slider (6) is fixedly connected to the housing (21).

3. The high-precision positioning and locking device according to claim 2, characterized in that: The inner wall of the movable frame (3) is provided with a movable groove, and the bottom of the slider (6) is fixedly connected to a movable block that is used in conjunction with the movable groove. The movable groove and the movable block are slidably connected.

4. The high-precision positioning and locking device according to claim 1, characterized in that: The support plate (1) has a support frame fixedly connected to both sides of the top. The inner wall of the support frame is fixedly connected to a sliding rod. The surface of the sliding rod is slidably connected to a sliding sleeve. The top of the sliding sleeve is fixedly connected to the shell (21).

5. A high-precision positioning and locking device according to claim 1, characterized in that: The support plate (1) is fixedly connected to slide rails on both sides of its bottom, and a limit rod is fixedly connected between the slide rails. The two ends of the limit rod are slidably connected to limit plates.

6. A high-precision positioning and locking device according to claim 5, characterized in that: A wedge block (7) is fixedly connected to the bottom of the limiting plate, a vertical plate is fixedly connected to the bottom of the support plate (1), an electric push rod (8) is fixedly connected to one side of the vertical plate, and an extrusion plate (9) is fixedly connected to the output end of the electric push rod (8).

7. A high-precision positioning and locking device according to claim 6, characterized in that: A connecting plate is fixedly connected to the bottom of the wedge block (7), and a spring is fixedly connected between the connecting plates.

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