Adjustable positioning pin

Abstract

The utility model provides an adjustable positioning pin which comprises an adjustable structure, the adjustable structure comprises an adjustable pin body and a rotating shaft, the top of the adjustable pin body is provided with a positioning pipe, and the positioning pipe is connected to the inner wall of a connecting hole in a sliding mode. The positioning pin is reasonable in design, the length of the positioning pin can be increased to adjust the positioning pin through the adjustable pin body capable of sliding downwards, and meanwhile the positioning ring and the sliding shaft are further arranged between the adjustable pin body and the pin body and used for improving the connecting strength between the adjustable pin body and the pin body. And the position of the adjustable pin body can be adjusted through the arranged rotating shaft, and then the adjustable pin body is fixed through mutual cooperation of the threaded groove and the threaded disc, so that the size of the positioning pin is prevented from being changed.

Description

Technical Field

[0001] This utility model mainly relates to the field of positioning pins, specifically to an adjustable positioning pin. Background Technology

[0002] In the fields of mechanical manufacturing, assembly, and automated production, locating pins, as a fundamental and crucial positioning element, are widely used for the precise positioning and fixing of workpieces with molds, fixtures, or equipment. Their core function is to eliminate degrees of freedom by engaging with pre-drilled locating holes on the workpiece, ensuring the relative positional accuracy between components during machining and assembly.

[0003] During the operation of specific embodiments, the inventors discovered the following defects:

[0004] However, different sizes of locating pins are used in different positions. But when the locating pins do not need to bear a large force, the pin diameter, length and installation position are all preset and cannot be dynamically adjusted according to the actual working conditions.

[0005] For example, when adapting to workpieces with different hole diameters or positional changes, operators need to frequently replace locating pins of different specifications or re-machine locating holes, resulting in reduced production efficiency, increased costs, and easy accumulation of positioning reference errors during repeated disassembly and assembly.

[0006] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0007] 1. The technical problem to be solved by the utility model:

[0008] This utility model provides an adjustable positioning pin to solve the technical problems existing in the background art.

[0009] 2. Technical Solution:

[0010] To achieve the above objectives, the technical solution provided by this utility model is: an adjustable positioning pin, including a pin body structure, wherein the pin body structure is provided with an adjustable structure inside;

[0011] A pin structure, comprising a connecting hole in the middle of the interior of the pin body, wherein a threaded groove is provided at the top of the connecting hole;

[0012] An adjustable structure includes an adjustable pin and a rotating shaft. The top of the adjustable pin is provided with a positioning tube, which is slidably connected to the inner wall of the connecting hole.

[0013] Furthermore, the pin body has a guide hole inside, a slot at the bottom of the guide hole, a fitting ring on the outer wall of the pin body, and a first drain groove on the outer wall of the pin body.

[0014] Furthermore, the number of the first drain troughs is set to multiple, and the multiple first drain troughs are arranged in a ring on the outer wall of the pin body.

[0015] Furthermore, the adjustable pin body has a sliding shaft at its top, a slider at its top, the slider being slidably connected to the inside of the guide hole, and a positioning groove at its bottom.

[0016] Furthermore, a threaded disc is provided at the top of the rotating shaft, the threaded disc is connected to a threaded groove, a base plate is provided at the bottom of the rotating shaft, and a side ring is provided on the outer side of the top of the base plate, the side ring being slidably connected to a positioning groove.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] This invention features an adjustable pin that can slide downwards, allowing for adjustment of the positioning pin's length. A positioning ring and a sliding shaft are also provided between the adjustable pin and the pin body to increase the connection strength. Furthermore, the position of the adjustable pin can be adjusted via a rotating shaft. Subsequently, a threaded groove and a threaded disc work together to fix the pin, preventing changes in its dimensions. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional view of the pin structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional unfolded structure of the adjustable structure of this utility model.

[0023] Figure label:

[0024] 1. Pin structure; 101. Pin body; 102. Guide hole; 103. Slot; 104. Connecting hole; 105. Threaded groove; 106. Fitting ring; 107. First drain trough; 2. Adjustable structure; 201. Adjustable pin; 202. Positioning tube; 203. Sliding shaft; 204. Sliding block; 205. Positioning groove; 206. Rotating shaft; 207. Threaded disc; 208. Base plate; 209. Side ring. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0029] See attached document Figure 1-3 An adjustable positioning pin includes a pin body structure 1, wherein an adjustable structure 2 is provided inside the pin body structure 1.

[0030] The pin structure 1 includes a pin body 101 with a connecting hole 104 in the middle, a threaded groove 105 at the top of the connecting hole 104, a guide hole 102 inside the pin body 101, a slot 103 at the bottom of the guide hole 102, a fitting ring 106 on the outer wall of the pin body 101, and a first drain groove 107 on the outer wall of the pin body 101. Multiple first drain grooves 107 are arranged in a circular array on the outer wall of the pin body 101. After the size of the positioning pin is adjusted, the positioning pin is inserted into the hole, and then the fitting ring 106 on the outer wall of the pin body 101 fits against the inner wall of the hole, fixing the pin body 101 through friction. Simultaneously, the first drain groove 107 can guide water flow, and the hole between the connecting hole 104, the positioning tube 202, and the adjustable pin 201 can also guide water flow, preventing water accumulation on the surface of the positioning pin.

[0031] Adjustable structure 2 includes an adjustable pin 201 and a rotating shaft 206. A positioning tube 202 is provided at the top of the adjustable pin 201, and the positioning tube 202 is slidably connected to the inner wall of the connecting hole 104. A sliding shaft 203 is provided at the top of the adjustable pin 201, and a slider 204 is provided at the top of the sliding shaft 203. The slider 204 is slidably connected to the inside of the guide hole 102. A positioning groove 205 is provided at the bottom of the adjustable pin 201. A threaded disc 207 is provided at the top of the rotating shaft 206, and the threaded disc 207 is connected to the threaded groove 105. A base plate 208 is provided at the bottom of the rotating shaft 206, and a side ring 209 is provided on the outer side of the top of the base plate 208. The side ring 209 is slidably connected to the positioning groove 205, but requires… When adjusting the size of the positioning pin according to the environment in which it is used, the rotating shaft 206 is rotated. The threaded disc 207 at the top of the rotating shaft 206 moves up or down on the inner wall of the threaded groove 105, causing the rotating shaft 206 to drive the side ring 209 at the top of the base plate 208 to slide on the inner wall of the positioning groove 205. The side ring 209 can only slide horizontally inside the positioning groove 205. The vertical line is locked, causing the side ring 209 to drive the adjustable pin body 201 to rise and fall. Then the adjustable pin body 201 drives the positioning tube 202 to rise and fall inside the connecting hole 104 to adjust the position between the pin body 101 and the adjustable pin body 201. At the same time, during the rising and falling of the adjustable pin body 201, the slider 204 at the top of the sliding shaft 203 will also slide on the inner wall of the guide hole 102.

[0032] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An adjustable positioning pin, characterized in that: include The pin structure (1) has an adjustable structure (2) inside. The pin structure (1) includes a connecting hole (104) in the middle of the pin body (101), and a threaded groove (105) is provided on the top of the connecting hole (104). The adjustable structure (2) includes an adjustable pin (201) and a rotating shaft (206). The top of the adjustable pin (201) is provided with a positioning tube (202), which is slidably connected to the inner wall of the connecting hole (104).

2. The adjustable positioning pin according to claim 1, characterized in that: The pin body (101) has a guide hole (102) inside, a slot (103) is provided at the bottom of the guide hole (102), a fitting ring (106) is provided on the outer wall of the pin body (101), and a first drain groove (107) is provided on the outer wall of the pin body (101).

3. An adjustable positioning pin according to claim 2, characterized in that: The number of the first drain tank (107) is set to multiple, and the multiple first drain tanks (107) are arranged in a ring on the outer wall of the pin body (101).

4. An adjustable positioning pin according to claim 1, characterized in that: The adjustable pin (201) is provided with a sliding shaft (203) at the top, and a slider (204) is provided at the top of the sliding shaft (203). The slider (204) is slidably connected to the inside of the guide hole (102). The adjustable pin (201) is provided with a positioning groove (205) at the bottom.

5. An adjustable positioning pin according to claim 1, characterized in that: The top of the rotating shaft (206) is provided with a threaded disc (207), which is connected to the threaded groove (105). The bottom of the rotating shaft (206) is provided with a base plate (208), and a side ring (209) is provided on the outer side of the top of the base plate (208). The side ring (209) is slidably connected to the positioning groove (205).

Images