A type of coupling positioning pin

Abstract

A coupling positioning pin includes a metal inner core and a nylon outer layer located outside the metal inner core; a limiting outer ring is connected to the lower end of the nylon outer layer; a transverse sliding groove is formed on the upper part of the metal inner core; a slider is slidably connected to the transverse sliding groove; an extension sliding groove corresponding to the transverse sliding groove is formed on the nylon outer layer; the slider is slidably connected to the transverse sliding groove and the extension sliding groove and can pass through the extension sliding groove; a rotating groove is formed above the transverse sliding groove of the metal inner core; a control disk for controlling the transverse sliding of the slider is rotatably connected to the rotating groove; a rotating shaft is connected above the control disk; a control groove is formed at the upper end of the metal inner core; the upper end of the rotating shaft passes through the metal inner core and is connected to a limiting disk; the limiting disk is rotatably connected to the control groove, and a knob is connected above the limiting disk. This utility model uses a limiting outer ring and a slider for limiting, making it less likely to fall off.

Description

Technical Field

[0001] This utility model relates to the field of positioning pin technology, specifically to a coupling positioning pin. Background Technology

[0002] A location pin is a mechanical part used to restrict the degrees of freedom of an object. It is mainly used in machine tool fixtures and other equipment, achieving reference positioning through a workpiece hole and controlling the object's six degrees of freedom in three-dimensional space. This part plays a crucial role in the precise positioning of adjacent components in multi-part molds. Currently, locating pins in couplings are generally made of nylon, which is prone to aging and breakage after prolonged use. Furthermore, while interference fits are typically used in the connection, a gap still exists between the locating pin and the pin hole, posing a risk of it falling off. Utility Model Content

[0003] The present invention provides a coupling positioning pin to solve the above-mentioned technical problems. The positioning pin adopts a metal inner core, which makes it more robust and less prone to breakage. In addition, a slider is set to limit its movement so that it is not easy to fall off.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model for a coupling positioning pin is as follows:

[0005] The device includes a metal inner core and a nylon outer layer located outside the metal inner core; a limiting outer ring is connected to the lower end of the nylon outer layer; a transverse sliding groove is formed on the upper part of the metal inner core; a slider is slidably connected in the transverse sliding groove; an extension sliding groove corresponding to the transverse sliding groove is formed on the nylon outer layer; the slider is slidably connected in the transverse sliding groove and the extension sliding groove and can pass through the extension sliding groove; a rotating groove is formed above the transverse sliding groove of the metal inner core; a control disk for controlling the transverse sliding of the slider is rotatably connected to the rotating groove; a rotating shaft is connected above the control disk; a control groove is formed at the upper end of the metal inner core; a limiting disk is connected to the upper end of the rotating shaft through the metal inner core; the limiting disk is rotatably connected in the control groove, and a knob is connected above the limiting disk; a threaded connection hole is formed in the control groove of the metal inner core; when the control disk controls the slider to pass through the extension sliding groove, the limiting disk is connected to the metal inner core through a limiting bolt; the limiting bolt passes through the limiting disk and is threadedly connected to the threaded connection hole.

[0006] The control panel has an adjustment groove; one end of the adjustment groove is the inner end, and the other end is the outer end; a connecting rod corresponding to the adjustment groove is connected above the slider; the connecting rod is inserted into the adjustment groove and is slidably connected to the adjustment groove; when the connecting rod is at the inner end, the slider is housed in the transverse slide groove and the extension slide groove; when the connecting rod is at the outer end, the outer end of the slider protrudes through the extension slide groove.

[0007] Two symmetrically arranged sliders are slidably connected within the transverse slide groove, and two adjustment slots corresponding to the two sliders are respectively opened on the corresponding control panel.

[0008] The control slot is fitted with an outer cover.

[0009] The metal inner core has a notch on the edge of its control groove to facilitate the removal of the outer cover.

[0010] The knob is hexagonal.

[0011] The technical effects that this utility model can achieve are:

[0012] 1. This utility model has a metal core inside the nylon outer layer, which significantly increases the structural strength and makes it less prone to breakage;

[0013] 2. Regarding the connection, this utility model uses an outer limiting ring and a slider to limit the connection, making it less likely to fall off. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 This is a schematic diagram of the connection of a coupling positioning pin according to the present invention;

[0016] Figure 2 yes Figure 1 Enlarged view of part A;

[0017] Figure 3 This is a schematic diagram of the structure of a coupling positioning pin according to the present invention;

[0018] Figure 4 This is a structural diagram when the connecting rod is located at the inner end (the metal inner core has been removed).

[0019] Figure 5 yes Figure 4 Enlarged view of part B;

[0020] Figure 6 This is a structural diagram when the connecting rod is located at the outer end (the metal inner core has been removed).

[0021] Figure 7 yes Figure 6 Enlarged view of part C;

[0022] Figure 8 This is an exploded view of a coupling positioning pin according to this utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] See Figures 1 to 8 .

[0025] A coupling positioning pin includes a metal inner core 1 and a nylon outer layer 2 located outside the metal inner core 1. This invention increases the overall structural strength by incorporating the metal inner core 1, making it less prone to breakage. A limiting outer ring 3 is connected to the lower end of the nylon outer layer 2. A transverse sliding groove 4 is formed on the upper part of the metal inner core 1. A slider 5 is slidably connected within the transverse sliding groove 4. An extension sliding groove 6 corresponding to the transverse sliding groove 4 is formed on the nylon outer layer 2. The slider 5 is slidably connected within the transverse sliding groove 4 and the extension sliding groove 6, and can pass through the extension sliding groove 6. A rotating groove 7 is formed above the transverse sliding groove 4 of the metal inner core 1, and a device for controlling the transverse sliding of the slider 5 is rotatably connected to the rotating groove 7. A control panel 8 is movable, with a rotating shaft 9 connected above it. A control groove 10 is formed at the upper end of a metal inner core 1. The upper end of the rotating shaft 9 passes through the metal inner core 1 and connects to a limiting plate 11. The limiting plate 11 is rotatably connected within the control groove 10, and a knob 12 is connected above the limiting plate 11. Specifically, the knob 12 is hexagonal and can be easily rotated using a hex wrench. A threaded connection hole 13 is formed within the control groove 10 of the metal inner core 1. When the control slider 5 of the control panel 8 passes through the extension groove 6, the limiting plate 11 is connected to the metal inner core 1 via a limiting bolt 14. The limiting bolt 14 passes through the limiting plate 11 and is threadedly connected to the threaded connection hole 13 (see reference). Figure 1 , 2 ).

[0026] Regarding the specific connection between the control panel 8 and the slider 5, the control panel 8 is provided with an adjustment groove 21, one end of which is an inner end 22, and the other end is an outer end 23; a connecting rod 24 corresponding to the adjustment groove 21 is connected above the slider 5, the connecting rod 24 is inserted into the adjustment groove 21, and is slidably connected to the adjustment groove 21; when the connecting rod 24 is located at the inner end 22 (refer to... Figure 4 , 5 The slider 5 is housed within the transverse slide groove 4 and the extended slide groove 6; when the connecting rod 24 is located at the outer end 23 (refer to...) Figure 6 , 7 The outer end of slider 5 protrudes through the extension groove 6. Specifically, two symmetrically arranged sliders 5 are slidably connected within the transverse groove 4, and the corresponding control disk 8 has two adjustment grooves 21 corresponding to the two sliders 5 respectively. This invention controls the connecting rods 24 of the two sliders 5 to move to the inner ends 22 or outer ends 23 of the two adjustment grooves 21 by rotating the control disk 8, thereby controlling both sliders 5 to be housed within the transverse groove 4 and the extension groove 6, or for the outer ends of both sliders 5 to protrude through the extension groove 6 (see reference). Figure 4 , 5 6, 7).

[0027] For specific installation details, please refer to... Figure 1First, both sliders 5 need to be housed in the horizontal slide groove 4 and the extension slide groove 6. Then, insert this utility model into the first connector 41 and the second connector 42. After full insertion, rotate the control disk 8 to control the outer ends of both sliders 5 to pass through the extension slide groove 6 and thus lock onto the first connector 41. The first connector 41 has slots corresponding to the two sliders 5. The limiting outer ring 3 limits the sliders 5, and the positioning pin of this utility model is not easy to fall off. Finally, tighten the upper limit bolt 14 to limit the limiting disk 11 and prevent it from rotating.

[0028] Preferably, the control slot 10 is fitted with an outer cover 31, and the metal inner core 1 has a notch 32 on the edge of the control slot 10 to facilitate the removal of the outer cover 31.

Claims

1. A coupling positioning pin, characterized in that: The device includes a metal inner core (1) and a nylon outer layer (2) located outside the metal inner core (1); the lower end of the nylon outer layer (2) is connected to a limiting outer ring (3); a transverse groove (4) is provided on the upper part of the metal inner core (1); a slider (5) is slidably connected in the transverse groove (4); an extension groove (6) corresponding to the transverse groove (4) is provided on the nylon outer layer (2); the slider (5) is slidably connected in the transverse groove (4) and the extension groove (6) and can pass through the extension groove (6); a rotating groove (7) is provided above the transverse groove (4) of the metal inner core (1); a control disk (8) for controlling the transverse sliding of the slider (5) is rotatably connected to the rotating groove (7). The control panel (8) is connected to a rotating shaft (9) above it; the metal inner core (1) has a control groove (10) at its upper end; the upper end of the rotating shaft (9) passes through the metal inner core (1) and is connected to a limiting plate (11); the limiting plate (11) is rotatably connected to the control groove (10), and a knob (12) is connected above the limiting plate (11); the metal inner core (1) has a threaded connection hole (13) in its control groove (10); when the control panel (8) controls the slider (5) to pass through the extension groove (6), the limiting plate (11) is connected to the metal inner core (1) through a limiting bolt (14); the limiting bolt (14) passes through the limiting plate (11) and is threadedly connected to the threaded connection hole (13).

2. A coupling positioning pin according to claim 1, characterized in that: The control panel (8) has an adjustment groove (21); one end of the adjustment groove (21) is the inner end (22), and the other end is the outer end (23); a connecting rod (24) corresponding to the adjustment groove (21) is connected above the slider (5); the connecting rod (24) is inserted into the adjustment groove (21) and is slidably connected to the adjustment groove (21); when the connecting rod (24) is located at the inner end (22), the slider (5) is housed in the transverse slide groove (4) and the extension slide groove (6); when the connecting rod (24) is located at the outer end (23), the outer end of the slider (5) protrudes out of the extension slide groove (6).

3. A coupling positioning pin according to claim 2, characterized in that: Two symmetrically arranged sliders (5) are slidably connected in the transverse slide groove (4), and two adjustment grooves (21) are opened on the corresponding control panel (8) respectively corresponding to the two sliders (5).

4. A coupling positioning pin according to claim 1, characterized in that: The control slot (10) is fitted with an outer cover (31).

5. A coupling positioning pin according to claim 4, characterized in that: The metal inner core (1) has a notch (32) on the edge of its control groove (10) to facilitate the removal of the outer cover (31).

6. A coupling positioning pin according to claim 1, characterized in that: The knob (12) is hexagonal.

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