CN219176732U - Locating pin tightening assembly - Google Patents

Abstract

The utility model discloses a positioning pin tightening assembly, which comprises a positioning pin main body, wherein a pin head is fixedly arranged at the upper end of the positioning pin main body, the lower end of the positioning pin main body is provided with a tightening assembly main body, the surface of the tightening assembly main body is provided with an external thread groove, the surface of the external thread groove is provided with an opening, a conical bead is movably embedded in the opening, and both ends of the conical bead are integrally provided with grinding beads; in the locating pin tightening assembly, the locating pin main body is assembled and butted with the tightening assembly main body through threaded connection, and the connecting mode between the locating pin main body and the tightening assembly main body is simpler and more convenient and the connecting is faster through the threaded connection mode.

Description

Locating pin tightening assembly

Technical Field

The utility model relates to the technical field related to locating pin assemblies, in particular to a locating pin tightening assembly.

Background

The locating pin is used for limiting the parts of the freedom degree of the object, is mainly used for determining the positions of two-dimensional spaces in some mechanical movement equipment, and is needed to be used for positioning and fixing in order to position and fix a certain part on many equipment and mechanical equipment, so that the application range of the locating pin is wider, the use frequency of the locating pin on the mechanical equipment is higher, and the locating pin can be matched with a tightening assembly for use, so that the tightening assembly is an indispensable matching assembly for the locating pin.

In the prior patent publication No. CN215358042U, a locating pin and locating pin hole aligning device for locating pin installation is disclosed, the device comprises an outer cylinder body which is horizontally arranged and a locating pin guide cylinder which is arranged in the outer cylinder body, the front end of the outer cylinder body is provided with an inlet and an outlet of the locating pin guide cylinder, and the front end of the locating pin guide cylinder is provided with a locating pin outlet; the top of the locating pin guide cylinder is provided with a locating pin clamp, the top of the locating pin clamp is provided with a locating pin inlet, and the outer cylinder body is provided with a guide hole which is used for the locating pin clamp to extend out and axially move along the outer cylinder body; a guide inclined plane is arranged in the positioning pin guide cylinder, a power device is arranged at the rear end of the outer cylinder body, and a reset spring is sleeved on the positioning pin guide cylinder. The positioning pin guide cylinder with the guide inclined plane is convenient for pushing the positioning pin to the position of the positioning pin hole, and is particularly suitable for quick installation of a plurality of positioning pins.

The prior problem that this locating pin and locating pin hole alignment device for locating pin installation solved is to install fast a plurality of locating pins, but when the installation, can not be fine cooperate with tightening the subassembly for can not strengthen the effect of locating pin through tightening the subassembly, it is not high to screw the laminating degree between subassembly and the equipment pore wall simultaneously, appears the condition of smooth tooth easily.

Disclosure of Invention

The utility model aims to provide a locating pin tightening assembly, which solves the problems that the existing locating pin used in the background technology cannot be well matched with the tightening assembly during installation, so that the effect of the locating pin cannot be enhanced by the tightening assembly, meanwhile, the degree of fit between the tightening assembly and the hole wall of equipment is not high, and the situation of sliding teeth is easy to occur.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a locating pin tightening assembly, includes the locating pin main part, the upper end fixed mounting of locating pin main part has the round pin head, and the lower extreme of locating pin main part is provided with the tightening assembly main part, the surface of tightening assembly main part is provided with the external screw thread groove, the trompil has been seted up on the surface of external screw thread groove, and the inside gomphosis movable mounting of trompil has the awl pearl, the equal integration in both ends of awl pearl is provided with the dull polish pearl.

Preferably, the lower end surface of the locating pin body is arranged in a threaded mode, and the locating pin body and the tightening assembly body are in threaded connection.

Preferably, the lower extreme fixedly connected with of tightening the subassembly main part is screwed up the head, and is screwed up fixedly connected with pin head on the lower extreme central line of head, the surface of screwing up the head is provided with and screws up the screw thread.

Preferably, the inside of the tightening head is of a hollow structure, and the inner wall of the hollow structure of the tightening head is in a threaded shape.

Preferably, the inner wall of the tightening head and the inner wall of the tightening assembly main body are on the same plane, and the tightening head is in threaded connection with the positioning pin main body.

Preferably, the holes are vertically arranged at equal intervals along the surface of the external thread groove, and the holes are annularly distributed with respect to the center line of the tightening assembly main body.

Preferably, the outer shape of the cone beads is a spindle body, and the outer structural size of the cone beads is matched with the inner structural size of the open hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the locating pin tightening assembly, the locating pin main body is assembled and butted with the tightening assembly main body through threaded connection, and the connecting mode between the locating pin main body and the tightening assembly main body is simpler and more convenient and the connecting is faster through the threaded connection mode;

2. this locating pin tightening assembly sets up the trompil through the surface at the surface of the outer thread groove of the surface of tightening assembly main part, and the inside of trompil has set up the conical bead, and the conical bead can outwards extrude the conical bead along with the entering of locating pin main part, lets the conical bead can paste the pinhole pore wall of tight equipment, increases the laminating degree of tightening between assembly main part and the pinhole, improves the rate of tension, is favorable to the fixity of locating pin main part in the pinhole, avoids smooth tooth.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic view of the surface structure of the body of the tightening assembly of the present utility model;

FIG. 3 is a schematic view of the positioning pin body and tightening assembly body of the present utility model in cross-section;

FIG. 4 is a schematic view of the open cell and cone structures of the present utility model;

FIG. 5 is a schematic diagram of the split structure of the opening and the cone beads of the present utility model.

In the figure: 1. a locating pin body; 2. a pin head; 3. tightening the assembly body; 4. an external thread groove; 41. opening holes; 42. conical beads; 43. a frosted bead; 5. tightening the head; 6. tightening the screw thread; 7. and (3) a nail head.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the locating pin tightening assembly comprises a locating pin main body 1, wherein a pin head 2 is fixedly arranged at the upper end of the locating pin main body 1, a tightening assembly main body 3 is arranged at the lower end of the locating pin main body 1, the lower end surface of the locating pin main body 1 is in a threaded shape, and the locating pin main body 1 and the tightening assembly main body 3 are in threaded connection;

the pin head 2 is arranged on the positioning pin main body 1, the pin head 2 can prolong the length of the upper end of the positioning pin main body 1, the positioning pin main body 1 is convenient to use, the positioning pin main body 1 is in threaded connection with the tightening assembly main body 3, the butt joint mode is simple and quick, and the assembly is convenient;

the lower end of the tightening assembly main body 3 is fixedly connected with a tightening head 5, the central line of the lower end of the tightening head 5 is fixedly connected with a nail head 7, the surface of the tightening head 5 is provided with a tightening thread 6, the inside of the tightening head 5 is of a hollow structure, the inner wall of the hollow structure of the tightening head 5 is in a thread shape, the inner wall of the tightening head 5 and the inner wall of the tightening assembly main body 3 are on the same plane, and the tightening head 5 and the positioning pin main body 1 are in threaded connection;

the tightening head 5 is fixedly connected with the tightening assembly main body 3 in an integrated manner through the arrangement of the tightening head 5, and the positioning pin main body 1 can penetrate through the inside of the tightening assembly main body 3 through threads and is simultaneously connected with the tightening head 5 through threads;

the surface of the tightening assembly main body 3 is provided with an external thread groove 4, the surface of the external thread groove 4 is provided with an opening 41, the inside of the opening 41 is embedded with a conical bead 42, both ends of the conical bead 42 are integrally provided with grinding beads 43, the opening 41 is vertically arranged at equal intervals along the surface of the external thread groove 4, the opening 41 is annularly distributed about the central line of the tightening assembly main body 3, the external shape of the conical bead 42 is a spindle body, and the external structural size of the conical bead 42 is identical with the internal structural size of the opening 41;

through the setting of trompil 41, the structure of trompil 41 coincides with the structure of cone pearl 42, and the both ends protrusion trompil 41's of cone pearl 42 both ends, when the inside of tightening subassembly main part 3 is got into to locating pin main part 1, can extrude the cone pearl 42 of protrusion at the trompil 41 inboard, with cone pearl 42 ejecting, the cone pearl 42 can paste the pore wall, increases the laminating degree of tightening between subassembly main part 3 and the pore wall.

Working principle: for such locating pin tightening assembly, firstly, the tightening assembly main body 3 is placed in a hole groove formed in the arrangement, then the locating pin main body 1 and the tightening assembly main body 3 are in butt joint through a threaded connection structure, as the locating pin main body 1 continuously goes deep into the inside of the tightening assembly main body 3, the conical beads 42 protruding inside the holes 41 are extruded first, the conical beads 42 can be extruded outwards, the diameter of the middle part of the conical beads 42 is larger than the opening diameters of the two ends of the holes 41, so that the conical beads 42 cannot be extruded out of the holes 41, the conical beads 42 are ejected out, the conical beads 42 can be attached to the hole wall, the attaching degree between the tightening assembly main body 3 and the hole wall is increased, when the locating pin main body 1 completely enters the tightening assembly main body 3, the tightening assembly main body 3 can be continuously screwed, the tightening assembly main body 3 can be continuously forced, the tightening assembly main body 3 can be screwed into the deep hole groove, the threaded connection positioning with the inside the hole groove is completed, and the using process of the whole locating pin tightening assembly is completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a locating pin tightening assembly, includes locating pin main part (1), its characterized in that: the locating pin is characterized in that the pin head (2) is fixedly arranged at the upper end of the locating pin body (1), the tightening assembly body (3) is arranged at the lower end of the locating pin body (1), an external thread groove (4) is formed in the surface of the tightening assembly body (3), an opening (41) is formed in the surface of the external thread groove (4), conical beads (42) are movably embedded in the opening (41), and grinding beads (43) are integrally arranged at two ends of the conical beads (42).

2. The dowel tightening assembly of claim 1, wherein: the lower end surface of the locating pin main body (1) is in a threaded shape, and the locating pin main body (1) and the tightening assembly main body (3) are in threaded connection.

3. The dowel tightening assembly of claim 1, wherein: the screw-down assembly is characterized in that the lower end of the screw-down assembly main body (3) is fixedly connected with a screw-down head (5), a nail head (7) is fixedly connected to the central line of the lower end of the screw-down head (5), and screw-down threads (6) are arranged on the surface of the screw-down head (5).

4. A dowel tightening assembly as set forth in claim 3 wherein: the inside of the tightening head (5) is of a hollow structure, and the inner wall of the hollow structure of the tightening head (5) is in a threaded shape.

5. A dowel tightening assembly as set forth in claim 3 wherein: the inner wall of the tightening head (5) and the inner wall of the tightening assembly main body (3) are on the same plane, and the tightening head (5) is in threaded connection with the locating pin main body (1).

6. The dowel tightening assembly of claim 1, wherein: the holes (41) are vertically arranged at equal intervals along the surface of the external thread groove (4), and the holes (41) are distributed annularly about the central line of the tightening assembly main body (3).

7. The dowel tightening assembly of claim 1, wherein: the outer shape of the cone beads (42) is a spindle body, and the outer structural size of the cone beads (42) is matched with the inner structural size of the open hole (41).

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