CN218760814U - Positioning pin telescopic mechanism - Google Patents

Abstract

The utility model discloses a locating pin telescoping mechanism, which comprises a pin rod, wherein the inside of the pin rod is provided with a hole, an extension rod is movably arranged in the hole, the outer side of the pin rod is sleeved with a telescopic pin sleeve, the inner central position of the telescopic pin sleeve is provided with a threaded hole, the lower end of the pin rod is integrally provided with the pin sleeve, a pin head column is arranged below the pin sleeve, and the central line of the upper surface of the pin head column is connected with a butt column; in this locating pin telescopic machanism, through the setting of flexible pin bushing, screw hole is seted up in the inside of flexible pin bushing to mutually support between the extension rod inside screw hole and the trompil, extend the extension rod from the inside of trompil, and then can and carry out threaded connection between the flexible pin bushing, thereby accomplish the butt joint between flexible pin bushing and the pin rod, and can adjust the flexible length of butt joint between flexible pin bushing and the pin rod according to the extension height of extension rod.

Description

Positioning pin telescopic mechanism

Technical Field

The utility model relates to a relevant technical field of locating pin specifically is a locating pin telescopic machanism.

Background

The positioning pin, participate in the part that restricts the object degree of freedom, all have certain application in some mechanical motion's equipment, mainly used two-dimensional space's position is confirmed, on many equipment and mechanical equipment, in order to fix a position and when fixed a certain position, need use the positioning pin to fix a position, therefore, the range of application of positioning pin is wider, and the frequency of use of positioning pin is higher on mechanical equipment, the use of positioning pin, according to the difference of operation requirement, some positioning pins can have telescopic machanism, are used for cooperating different mechanical equipment.

In prior granted patent publication No. CN214367119U, a telescopic positioning pin is disclosed, comprising: a positioning pin and a telescopic structure; the telescopic structure comprises a stop block with at least two grooves on the lower surface and a stop lever matched with the at least two grooves in shape, and the stop lever is fixedly connected with the positioning pin; along the axial of locating pin, two at least recesses have different degree of depth on the dog, the utility model discloses need not to dismantle mould and locating pin, make the recess butt of the degree of depth of shelves pole and dog through rotatory shelves pole, make the locating pin stretch out and draw back, reach fast switch over's purpose, not only practiced thrift mould and locating pin and dismantled and time and the manpower of installation, can also guarantee the stability of part positioning accuracy and size.

But among the above-mentioned this flexible locating pin, the problem of having solved is to practice thrift time and the manpower that mould and locating pin are dismantled and are installed, can also guarantee the stability of part positioning accuracy and size, but holistic assembling process is laborsaving saving and time saving inadequately, and when stretching out and drawing back to the pin pole, need use different structure and subassembly to carry out flexible regulation, but because the subassembly operation is complicated, in the use, and do not do benefit to quick installation, it is convenient inadequately to use, the extending structure is more complicated, can not install fast.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locating pin telescopic machanism to solve the locating pin of the present use that proposes in the above-mentioned background art, when stretching out and drawing back to the round pin pole, need use different structure and subassembly to stretch out and draw back and adjust, but because the subassembly operation is complicated, in the use, and do not benefit to quick installation, it is convenient inadequately to use, and telescopic machanism is more complicated, can not carry out the problem of quick installation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a locating pin telescopic machanism, includes the pin pole, the trompil has been seted up to the inside of pin pole, and the inside movable mounting of trompil has the extension rod, the outside cover of pin pole is equipped with flexible pin bushing, and the inside central point of flexible pin bushing puts the set screw hole, the pin bushing is installed in the lower extreme integration of pin pole, and the below of pin bushing is provided with the round pin head post, be connected with the butt joint post on the upper surface central line of round pin head post.

Preferably, the surface of the extension rod is threaded, and the extension rod is in threaded connection with the opening.

Preferably, be threaded connection between extension rod and the screw hole, and the extension rod passes through threaded hole and interconnect between the flexible pin bushing.

Preferably, the lower surface of the pin sleeve is fixedly provided with balls, and the balls are distributed annularly about the center line of the pin sleeve.

Preferably, the outer edge of the upper surface of the pin head column is provided with a sliding groove, and one side of the inside of the sliding groove is provided with a hole groove matched with the ball.

Preferably, the ball and the hole groove are mutually matched in size.

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

this locating pin telescopic machanism, setting through flexible guide pin, threaded hole is seted up in the inside of flexible guide pin, and mutually support between the extension rod of screw hole and trompil inside, extend the extension rod from the inside of trompil, and then can and flexible guide pin between carry out threaded connection, thereby accomplish the butt joint between flexible guide pin and the guide pin, and can adjust the flexible length of butt joint between flexible guide pin and the guide pin according to the extension height of extension rod, the extension rod protrusion height is less, then the butt joint degree of depth between screw hole and the extension rod is shallower, the flexible length of guide pin is longer, otherwise, the butt joint degree of depth is darker between screw hole and the extension rod, then the flexible length that the guide pin utilized flexible guide pin is just shorter, so operating mode is simple and convenient, connect time quantum, be convenient for adjust.

Drawings

FIG. 1 is a schematic view of the front view structure of the present invention;

fig. 2 is a schematic view of the bottom view structure of the pin rod and the pin head column of the present invention;

FIG. 3 is a schematic view of the pin head column of the present invention;

fig. 4 is a schematic view of the installation structure between the pin rod and the telescopic pin bush of the present invention.

In the figure: 1. a pin rod; 101. a telescopic pin bush; 102. a threaded hole; 2. a pin bush; 21. a ball; 3. opening a hole; 4. an extension rod; 5. a pin head post; 51. a chute; 52. a hole groove; 6. and (4) butting the columns.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a locating pin telescoping mechanism comprises a pin rod 1, wherein an opening 3 is formed in the pin rod 1, an extension rod 4 is movably mounted in the opening 3, the surface of the extension rod 4 is in a threaded shape, the extension rod 4 is in threaded connection with the opening 3, the extension rod 4 is in threaded connection with a threaded hole 102, and the extension rod 4 is connected with a telescopic pin sleeve 101 through the threaded hole 102;

through the arrangement of the extension rod 4, the extension rod 4 can extend out of the inside of the opening 3 by utilizing the threaded connection between the extension rod 4 and the opening 3, and meanwhile, the extension rod 4 can be retracted into the pin rod 1 when not in use, so that unnecessary damage to the extension rod 4 is avoided;

the outer side of the pin rod 1 is sleeved with a telescopic pin sleeve 101, a threaded hole 102 is formed in the inner center of the telescopic pin sleeve 101, the pin sleeve 2 is integrally installed at the lower end of the pin rod 1, a pin head column 5 is arranged below the pin sleeve 2, balls 21 are fixedly arranged on the lower surface of the pin sleeve 2, the balls 21 are annularly distributed about the center line of the pin sleeve 2, a sliding groove 51 is formed in the outer edge of the upper surface of the pin head column 5, a hole groove 52 matched with the balls 21 is formed in one side of the inner portion of the sliding groove 51, and the balls 21 are matched with the hole groove 52 in size;

through the arrangement of the telescopic pin bush 101, the length of the pin rod 1 is increased by utilizing the telescopic pin bush 101, the telescopic pin bush 101 is in threaded connection with the extension rod 4, and the telescopic pin bush 101 can be quickly connected with the pin rod 1 by utilizing the threaded connection;

and the central line of the upper surface of the pin head column 5 is connected with a butt-joint column 6.

The working principle is as follows: to this kind of locating pin telescopic machanism, at first according to the user demand of reality, utilize the threaded connection between extension rod 4 and the trompil 3, twist out one section height with extension rod 4 from trompil 3, the extension height of extension rod 4 can decide the length that can increase pin rod 1 of flexible guide pin 101, extension rod 4 protrusion height is less, then the butt joint degree of depth between screw hole 102 and the extension rod 4 is lighter, the flexible length of pin rod 1 is longer, otherwise, the butt joint degree of depth is darker between screw hole 102 and the extension rod 4, then pin rod 1 utilizes flexible length of flexible guide pin 101 just shorter, secondly, guide pin 2 is connected with butt joint post 6 on the pin head post 5 through threaded connection, along with the surface of constantly being close to pin head post 5 of guide pin 2, until the lower surface of guide pin 2 pastes with the upper surface of pin head post 5, and then make ball 21 imbed in the hole groove 52, accomplish the antiskid screens, accomplish the use of whole locating pin telescopic machanism just so.

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

Claims (6)

1. The utility model provides a locating pin telescopic machanism, includes pin pole (1), its characterized in that: trompil (3) have been seted up to the inside of pin rod (1), and the inside movable mounting of trompil (3) has extension rod (4), the outside cover of pin rod (1) is equipped with flexible guide pin (101), and the inside central point of flexible guide pin (101) puts set up threaded hole (102), guide pin (2) are installed in the lower extreme integration of pin rod (1), and the below of guide pin (2) is provided with round pin head post (5), be connected with butt joint post (6) on the upper surface central line of round pin head post (5).

2. The locating pin telescoping mechanism of claim 1, wherein: the surface of the extension rod (4) is in a thread shape, and the extension rod (4) is in threaded connection with the opening (3).

3. The locating pin telescoping mechanism of claim 1, wherein: the extension rod (4) is in threaded connection with the threaded hole (102), and the extension rod (4) is connected with the telescopic pin sleeve (101) through the threaded hole (102).

4. The locating pin telescoping mechanism of claim 1, wherein: the lower surface of the pin sleeve (2) is fixedly provided with balls (21), and the balls (21) are annularly distributed around the center line of the pin sleeve (2).

5. The locating pin telescoping mechanism of claim 1, wherein: the outer edge of the upper surface of the pin head column (5) is provided with a sliding groove (51), and one side of the inner part of the sliding groove (51) is provided with a hole groove (52) matched with the ball (21).

6. The locating pin telescoping mechanism of claim 5, wherein: the ball (21) and the hole groove (52) are mutually matched in size.

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