Zero-position positioning disc
By designing the zero-position positioning hole and arc-shaped positioning surface of the zero-position positioning plate and combining it with the limit assembly, the problem of difficulty in determining the zero point of parts between different processes is solved, precise positioning and efficient clamping of the workpiece are achieved, processing accuracy and efficiency are improved, and operating costs are reduced.
Patent Information
- Application Number
- CN202422509643.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In mechanical manufacturing, measurement, and robotic automatic production lines, it is difficult to determine the zero point when parts are transferred between different processes or machine tools. This requires re-adjusting the zero point, increasing downtime and reducing work efficiency. Traditional zero-point chucks are easily affected by metal chips, wear, and have unstable structures.
A zero-position positioning plate is designed, which includes a positioning table, a zero-position positioning hole, an adjustment hole, a rotating rod and a locking sleeve. The arc-shaped positioning surface and the adjustment thread are used to achieve precise positioning and stable clamping of the workpiece. The limit assembly is combined to ensure the stability and adaptability of the locking sleeve.
It improves the machining accuracy and work efficiency of the workpiece, simplifies the clamping and releasing process, adapts to workpieces of various sizes and shapes, and reduces equipment integration and maintenance costs.
Smart Images
Figure CN223383121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a zero-position positioning disk. Background Art
[0002] The concept of datum is widely used in the fields of mechanical manufacturing, measurement, machine tools, robotic automatic production lines, etc. Datum, that is, zero point or zero position, is a point, line or surface used to determine the geometric relationship on an object. When processing or measuring, the zero point of the workpiece must be determined first, and then processing or measurement can be carried out based on the zero point. However, during the processing, parts often need to be transferred between different processes and different machine tools, or it is difficult to determine the zero point for parts with irregular shapes. This requires re-aligning the zero point and performing a lot of auxiliary work, which increases downtime and reduces work efficiency.
[0003] Traditional zero-point chucks have built-in cylinders that use complex mechanical transmission to lock the ball bearings against the rivets. This design exposes the exposed ball bearings to metal shavings, creating a risk of the mechanism becoming stuck. Furthermore, the ball bearings and rivets are in point contact, resulting in uneven force distribution and increased wear. Utility Model Content
[0004] The utility model provides a zero-position positioning disk to solve the problems of the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a zero position positioning disk, comprising: a positioning platform and a zero position mechanism rotatably arranged in the positioning platform, a zero position positioning hole is provided through the middle of the positioning platform and adjustment holes are provided through the two sides, the adjustment hole and the zero position positioning hole are connected to each other, the zero position mechanism comprises a rotating rod and a locking sleeve slidably arranged on both sides of the rotating rod, and the two groups of locking sleeves are provided with an arc-shaped positioning surface at one end close to the zero position positioning hole.
[0006] As a further improvement, the rotating rod is rotatably arranged in the adjusting hole and has first adjusting threads in opposite directions on both sides, the locking sleeve is sleeved on one side of the rotating rod and has a second adjusting thread at the end, the first adjusting thread and the second adjusting thread are threadedly connected and a rotating groove is provided on the end face.
[0007] As a further improvement, limiting holes are provided on the upper sides of both ends of the adjustment hole, limiting grooves are provided on the upper end of the locking sleeve, and a limiting component is slidably provided in the limiting hole. The limiting component includes a limiting sleeve and a limiting bolt. The limiting sleeve is slidably provided in the limiting hole and the lower end is fitted with the limiting groove. The threaded portion of the limiting bolt passes through the limiting sleeve and is threadedly connected to the limiting hole.
[0008] As a further improvement, a mounting hole is provided through the positioning platform, and a mounting bolt is provided in the mounting hole.
[0009] Further improvement, the mounting holes and mounting bolts are provided with multiple groups correspondingly, the head diameter of the mounting bolt is a, and the diameter of the mounting hole is b, satisfying the quantitative relationship: a <b。
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. The utility model ensures accurate positioning of the workpiece through the precise cooperation between the zero-position positioning hole and the arc-shaped positioning surface, thereby improving processing accuracy. Secondly, the adjustment mechanism of the rotating rod and the locking sleeve simplifies the clamping and releasing process of the workpiece, thereby improving work efficiency. In addition, because the locking sleeve can move freely along the rotating rod, the device has good adaptability and can handle workpieces of various sizes and shapes. The design of the adjustment thread makes the clamping force adjustable to meet the needs of different processing conditions. Finally, the entire device has a compact structure and is easy to integrate into existing processing equipment. It is also simple to maintain, reducing long-term operating costs.
[0012] 2. In order to further improve the accuracy and stability of positioning, limit holes are added on the upper sides of both ends of the adjustment hole, and a limit groove is provided on the upper end of the locking sleeve. The stability of the locking sleeve during the adjustment process is ensured by arranging a limit component in the limit hole. At the same time, the setting of the limit component can limit the locking sleeve to avoid excessive adjustment causing the locking sleeve to slip out of the positioning platform and requiring the equipment to be repositioned. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 It is a partial exploded view of the utility model;
[0015] Figure 3 It is a cross-sectional view of the utility model;
[0016] Figure 4 It is a structural diagram of the zero-position mechanism of the utility model.
[0017] In the figure, 1. Positioning platform; 11. Zero-position positioning hole; 12. Adjustment hole; 13. Limiting hole; 14. Mounting hole; 15. Mounting bolt; 2. Zero-position mechanism; 21. Rotating rod; 211. First adjusting thread; 212. Rotating groove; 22. Locking sleeve; 221. Arc-shaped positioning surface; 222. Second adjusting thread; 223. Limiting groove; 3. Limiting assembly; 31. Limiting sleeve; 32. Limiting bolt. DETAILED DESCRIPTION
[0018] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0019] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0020] Below with reference to the embodiment and the attached Figures 1 to 4 , the technical solution of the utility model is further elaborated.
[0021] Example 1
[0022] A zero position positioning disk comprises: a positioning platform 1 and a zero position mechanism 2 rotatably arranged in the positioning platform 1, a zero position positioning hole 11 is provided in the middle of the positioning platform 1 and adjustment holes 12 are provided on both sides, the adjustment hole 12 and the zero position positioning hole 11 are connected to each other, the zero position mechanism 2 comprises a rotating rod 21 and a locking sleeve 22 slidably arranged on both sides of the rotating rod 21, two groups of locking sleeves 22 are provided with an arc-shaped positioning surface 221 at one end close to the zero position positioning hole 11, the rotating rod 21 is rotatably arranged in the adjustment hole 12 and has first adjustment threads 211 in opposite directions on both sides, the locking sleeve 22 is sleeved on one side of the rotating rod 21 and has a second adjustment thread 222 at the end, the first adjustment thread 211 and the second adjustment thread 222 are threadedly connected and the end face is provided with a rotating groove 212.
[0023] like Figures 1 to 4 As shown, in actual use of the present invention, the workpiece is first placed in the zero-position positioning hole 11 of the positioning table 1, and the hole serves as a reference point for positioning the workpiece. Secondly, by rotating the rotating rod 21, the locking sleeves 22 on both sides are driven to move toward the zero-position positioning hole 11. The arc-shaped positioning surface 221 on the locking sleeve 22 is used to achieve stable clamping of the workpiece. The rotation direction of the rotating rod 21 determines the moving direction of the locking sleeve 22, so that the operator can adjust the clamping force according to the size and material of the workpiece to ensure the stability of the workpiece during processing or measurement. After completing processing or measurement, the rotating rod 21 can be rotated in the opposite direction to release the workpiece.
[0024] The utility model ensures the accurate positioning of the workpiece through the precise cooperation between the zero-position positioning hole 11 and the arc-shaped positioning surface 221, thereby improving the processing accuracy. Secondly, the adjustment mechanism of the rotating rod 21 and the locking sleeve 22 simplifies the clamping and releasing process of the workpiece, thereby improving work efficiency. In addition, since the locking sleeve 22 can move freely along the rotating rod 21, the device has good adaptability and can handle workpieces of various sizes and shapes. The design of the adjusting thread makes the clamping force adjustable, meeting the needs of different processing conditions. Finally, the structure of the entire device is compact, easy to integrate into existing processing equipment, and simple to maintain, thereby reducing long-term operating costs.
[0025] As a further preferred embodiment, limiting holes 13 are provided on the upper sides of both ends of the adjustment hole 12, and a limiting groove 223 is provided on the upper end of the locking sleeve 22. A limiting component 3 is slidably provided in the limiting hole 13, and the limiting component 3 includes a limiting sleeve 31 and a limiting bolt 32. The limiting sleeve 31 is slidably provided in the limiting hole 13 and the lower end is fitted with the limiting groove 223. The threaded portion of the limiting bolt 32 passes through the limiting sleeve 31 and is threadedly connected to the limiting hole 13.
[0026] Specifically, in order to further improve the accuracy and stability of positioning, limiting holes 13 are added to the upper sides of both ends of the adjustment hole 12, and a limiting groove 223 is provided at the upper end of the locking sleeve 22. The stability of the locking sleeve 22 during the adjustment process is ensured by arranging a limiting component 3 in the limiting hole 13. At the same time, the setting of the limiting component 3 can limit the locking sleeve 22 to avoid excessive adjustment causing the locking sleeve 22 to slide out of the positioning platform 1, resulting in the need to reposition the equipment.
[0027] As a further preferred embodiment, a mounting hole 14 is provided through the positioning platform 1 , and a mounting bolt 15 is provided in the mounting hole 14 to facilitate the installation of the equipment.
[0028] As a further preferred embodiment, the mounting holes 14 and the mounting bolts 15 are provided in multiple groups, the head diameter of the mounting bolts 15 is a, and the diameter of the mounting holes 14 is b, satisfying the quantitative relationship: a <b。
[0029] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.
Claims
1. A zero position positioning plate, characterized in that: include: A positioning platform (1) and a zero position mechanism (2) rotatably arranged in the positioning platform (1); a zero position positioning hole (11) is provided through the middle of the positioning platform (1) and adjustment holes (12) are provided through the two sides; the adjustment holes (12) and the zero position positioning hole (11) are connected to each other; the zero position mechanism (2) includes a rotating rod (21) and locking sleeves (22) slidably arranged on both sides of the rotating rod (21); and two sets of locking sleeves (22) are provided with arc-shaped positioning surfaces (221) at one end close to the zero position positioning hole (11).
2. A zero position positioning plate according to claim 1, characterized in that: The rotating rod (21) is rotatably arranged in the adjusting hole (12) and has first adjusting threads (211) arranged on both sides in opposite directions. The locking sleeve (22) is sleeved on one side of the rotating rod (21) and has a second adjusting thread (222) arranged at the end. The first adjusting thread (211) and the second adjusting thread (222) are threadedly connected and a rotating groove (212) is arranged on the end surface.
3. A zero position positioning plate according to claim 1, characterized in that: Limiting holes (13) are provided on the upper sides of both ends of the adjusting hole (12), a limiting groove (223) is provided on the upper end of the locking sleeve (22), a limiting assembly (3) is slidably provided in the limiting hole (13), the limiting assembly (3) comprises a limiting sleeve (31) and a limiting bolt (32), the limiting sleeve (31) is slidably provided in the limiting hole (13) and the lower end is fitted with the limiting groove (223), the threaded portion of the limiting bolt (32) passes through the limiting sleeve (31) and is threadedly connected to the limiting hole (13).
4. A zero positioning plate according to claim 1, characterized in that: A mounting hole (14) is provided through the positioning platform (1), and a mounting bolt (15) is provided in the mounting hole (14).
5. A zero position positioning plate according to claim 4, characterized in that: The mounting holes (14) and the mounting bolts (15) are provided in a plurality of groups, the diameter of the head of the mounting bolts (15) is a, and the diameter of the mounting holes (14) is b, satisfying the quantitative relationship: a <b。