CN215950074U

CN215950074U - Locating pin quick replacement mechanism

Info

Publication number: CN215950074U
Application number: CN202122679549.6U
Authority: CN
Inventors: 程渝; 余凤兵; 刘建军
Original assignee: Chongqing Zongshen Engine Manufacturing Co Ltd
Current assignee: Chongqing Zongshen Engine Manufacturing Co Ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-04
Anticipated expiration: 2031-11-04

Abstract

The application relates to the technical field of workpiece positioning adjustment, and discloses a locating pin quick replacement mechanism, including selling box, elastic element, lockpin piece, handle and locating pin, elastic element one end is connected the lockpin piece, the other end top is in sell on the box, lockpin piece draw-in groove is connected the locating pin, elastic element is in with lockpin piece setting in the box, the box of selling is open-ended groove, the handle passes through the opening and connects the lockpin piece has the fast advantage of locating pin dismouting.

Description

Locating pin quick replacement mechanism

Technical Field

The utility model relates to the technical field of workpiece positioning adjustment, in particular to a quick replacement mechanism for a positioning pin.

Background

The positioning pin is a common part for positioning mechanical parts, when a machine body needs to be formed by precisely connecting a plurality of parts, the positioning pin is adopted for positioning, and positioning pins with different sizes need to be replaced in time along with different welding positions or different welding parts on a welding production line in the manufacturing industry.

In the prior art, application number 201320267261 discloses a special frock clamp of motorcycle engine assembly line, including frock clamp and locating pin arm, set up a plurality of screw holes on the locating pin arm, the screw hole diameter is the same with the locating hole diameter, dismantles the locating pin arm through the screw thread for the adjustment locating pin position, because of different spare parts, need change the regulation repeatedly of locating pin, frequent dismantlement threaded connection mechanism has not only increaseed operator's intensity of labour, and the slow inefficiency of change speed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick replacement mechanism for a positioning pin, which aims to solve the problem that the disassembly and assembly speed of the positioning pin is low.

In order to achieve the purpose, the utility model provides a quick replacement mechanism for a positioning pin, which is characterized in that: including selling box, elastic element, lockpin piece, handle and locating pin, elastic element one end is connected the lockpin piece, and the other end pushes up sell the box on, lockpin piece draw-in groove connects the locating pin, elastic element and lockpin piece set up in selling the box, sell the box and be open-ended groove, the handle passes through the opening and connects lockpin piece, locking state: the elastic element props against the lock pin block to clamp the positioning pin; the non-locking state: the elastic element is further compressed, and the lock pin block is separated from the positioning pin.

Furthermore, one end part of the lock pin block is cylindrical and is embedded in the elastic element, the other end of the lock pin block is an arc-shaped locking plate, and a locking groove is formed in the positioning pin and is used for being embedded into the locking plate.

In order to ensure the firmness of the lock pin block, more than two arc-shaped lock plates are arranged at one end of the lock pin block, and lock grooves corresponding to the lock plates are formed in the positioning pins.

In order to prevent dust, oil stain or waste scraps from entering, a blocking piece is arranged on the notch of the pin box.

In order to facilitate the operator to press the elastic element, the handle comprises a handle and a lever, the handle is connected with the lock pin block through the lever, the handle is rotatably connected with the lever, and the handle is rotatably connected to the pin box to serve as a fulcrum.

In order to avoid the interference between the movement of the lever and the pin box, the lever is arc-shaped, and the inner arc faces to one side of the elastic element.

Has the advantages that: the utility model provides a quick replacement mechanism for a positioning pin, which is characterized in that a lock pin block is further moved downwards by pressing a handle to be separated from the positioning pin, the locking of the positioning pin is released, then positioning pins of different types are installed, the handle is released, the lock pin block is rebounded by an elastic element to clamp the positioning pin, the replacement is completed, the positioning pin is replaced by only one press, the speed is quite quick, the labor intensity of operators is reduced while the efficiency is improved, the abrasion of a connecting part of the positioning pin caused by frequent replacement is also avoided, and the positioning accuracy of the positioning pin is ensured.

Drawings

FIG. 1 is a schematic view showing a quick change mechanism of a positioning pin according to embodiment 1;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic structural view of a baffle plate in embodiment 1;

FIG. 4 is a schematic structural view of the latch block of FIGS. 1 and 2;

fig. 5 is a schematic structural view of the positioning pin of fig. 1 and 2.

Reference numerals: 1. a pin box; 2. an elastic element; 3. a lock pin block; 4. a handle; 5. positioning pins; 6. a locking plate; 7. locking the groove; 8. a baffle plate; 9. a handle; 10. a lever.

Detailed Description

The following detailed description of the embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and modifications made to the utility model without departing from the principle of the utility model fall within the scope of the claims of the present invention.

Example 1

As shown in fig. 1-3, a quick replacement mechanism for a positioning pin comprises a pin box 1, an elastic element 2, a locking pin block 3, a handle 4 and a positioning pin 5, wherein the pin box 1 is an open groove, the elastic element 2 and the locking pin block 3 are arranged in the groove, one end of the elastic element 2 is connected to the bottom of the locking pin block 3, the other end of the elastic element 2 abuts against the pin box 1, a slot of the locking pin block 3 is connected to the positioning pin 5, the locking pin block 3 moves up and down according to the extension of the elastic element 2, the handle 4 is connected to the locking pin block 3 through the opening, and the locking state is as follows: the elastic element 2 upwards supports against the lock pin block 3, and the lock pin block 3 clamps the positioning pin 5; non-locking state degree: by pressing the lock pin block 3 through the handle 4, the elastic element 2 is further compressed and drives the lock pin block 3 to move downwards, the lock pin block 3 is separated from the positioning pin 5, and the positioning pin 5 is unlocked.

As shown in fig. 4 and 5, one end of the lock pin block 3 is cylindrical and is embedded in the elastic element 2, so that the lock pin block 3 can move up and down along with the elastic element 2 without falling off, the other end of the lock pin block is an arc-shaped lock plate 6, and the positioning pin 5 is provided with a lock groove 7 for embedding the lock plate 6 to lock the positioning pin 5.

More than two arc-shaped locking plates 6 are arranged at one end of the locking pin block 3, and locking grooves 7 corresponding to the locking plates 6 are formed in the positioning pins 5.

The notch of round pin box 1 is provided with separation blade 8, set up a plurality of connecting holes on the separation blade 8, connect through the connecting hole on the round pin box 1, prevent that dust, greasy dirt or sweeps from getting into the notch, block up elastic element 2 leads to using the card to pause not in the same direction as smooth.

Preferably, the handle 4 comprises a handle 9 and a lever 10, the handle 9 is connected with the locking pin block 3 through the lever 10, the handle 9 is rotatably connected with the lever 10, the handle 9 is rotatably connected to the pin box 1 as a fulcrum, when an operator presses the handle 9, the handle 9 rotates by taking the fulcrum as a center, and the elastic element 2 is easily pressed down through the lever 10, so that the purpose of releasing the positioning pin 5 at one time is achieved.

The lever 10 is arc-shaped, and the inner arc faces one side of the elastic element 2, so that the moving space of the lever 10 in the groove is reduced, and the interference of the pin box 1 or the positioning pin 5 is avoided.

When the positioning pin 5 is replaced by an operator, the handle 9 is pressed, the locking pin block 3 is pressed down through the lever 10, the locking pin block 3 is separated from the positioning pin 5 at any time, the positioning pin 5 is pulled out for replacement, after a new positioning pin 5 is inserted, the handle 9 is loosened, and the locking pin block 3 is combined and locked with the positioning pin 5 under the pushing of the elastic element 2.

Claims

1. The utility model provides a locating pin quick replacement mechanism which characterized in that: the locking device comprises a pin box (1), an elastic element (2), a locking pin block (3), a handle (4) and a positioning pin (5), wherein one end of the elastic element (2) is connected with the locking pin block (3), the other end of the elastic element pushes against the pin box (1), the locking pin block (3) is connected with the positioning pin (5) in a clamping groove, the elastic element (2) and the locking pin block (3) are arranged in the pin box (1), the pin box (1) is an open groove, the handle (4) is connected with the locking pin block (3) through an opening, and the locking state is that: the elastic element (2) props against the lock pin block (3) to clamp the positioning pin (5); the non-locking state: the elastic element (2) is further compressed, and the lock pin block (3) is separated from the positioning pin (5).

2. The locating pin quick change mechanism of claim 1, wherein: one end of the lock pin block (3) is cylindrical and embedded in the elastic element (2), the other end of the lock pin block is an arc-shaped lock plate (6), and a lock groove (7) is formed in the positioning pin (5) and used for being embedded into the lock plate (6).

3. The locating pin quick change mechanism of claim 2, wherein: and one end of the locking pin block (3) is provided with more than two arc-shaped locking plates (6), and the positioning pin (5) is provided with a locking groove (7) corresponding to the locking plate (6).

4. The locating pin quick change mechanism of claim 1, 2 or 3, wherein: and a blocking piece (8) is arranged on the notch of the pin box (1).

5. The locating pin quick change mechanism of claim 4, wherein: the handle (4) comprises a handle (9) and a lever (10), the handle (9) is connected with the lock pin block (3) through the lever (10), the handle (9) is rotatably connected with the lever (10), and the handle (9) is rotatably connected to the pin box (1) as a fulcrum.

6. The locating pin quick change mechanism of claim 5, wherein: the lever (10) is arc-shaped, and the inner arc faces one side of the elastic element (2).