CN211178207U

CN211178207U - Interchangeable mechanism

Info

Publication number: CN211178207U
Application number: CN201922452982.9U
Authority: CN
Inventors: 何勇
Original assignee: Chongqing Tuode Precision Machinery Co ltd
Current assignee: Chongqing Tuode Precision Machinery Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-04
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an exchange mechanism, which comprises a fixed seat and an exchange block connected with the upper end of the fixed seat, the fixed seat is provided with an installation through groove, the lower end of the interchange block is connected with a positioning block which can extend into the installation through groove, a waist-shaped hole penetrates through the positioning block, a first mounting hole and a second mounting hole which are communicated with the mounting through groove are arranged on the fixed seat, the axial leads of the first mounting hole and the second mounting hole are vertical, a rotating shaft is mounted in the first mounting hole, one end of the rotating shaft extending into the mounting through groove is connected with an eccentric shaft, the other end of the rotating shaft is connected with an operating handle, a limiting groove is spirally arranged on the periphery of one end of the rotating shaft close to the positioning block, a ball screw is arranged in the second mounting hole, one end of the wave ball screw, which is close to the installation through groove, extends into the limiting groove, and the eccentric shaft can extend into or extend out of the waist-shaped hole under the driving of the operating handle.

Description

Interchangeable mechanism

Technical Field

The utility model relates to a tooling equipment technical field, concretely relates to exchange mechanism.

Background

The detection tool is a simple tool for controlling various sizes (such as aperture, space size and the like) of products by industrial production enterprises, improves the production efficiency and controls the quality, and is suitable for mass production of products, such as automobile parts, to replace a professional measuring tool. The existing checking fixture is often a special size error detection tool which is adjustable and most parts of which can be reused, and can be used for detecting different models or products through proper adjustment, so that the checking fixture has the characteristics of one-to-many, small occupied space and less material waste. Meanwhile, the checking fixture is usually of a modular structure, the manufacturing period is usually short, the assembly and the disassembly are convenient, the operation is flexible and convenient, and the detection work is convenient to carry out. When various parameters of a workpiece are tested by an existing checking fixture, a detection block, a simulation block and the like are required to be adopted for detection, replacement of parts such as the detection block and the simulation block is carried out after one detection is finished, in order to guarantee detection efficiency, the detection block and the simulation block need to be quickly exchanged, when modules are exchanged by the existing checking fixture, digital-analog comparison and measurement are not in compliance, or detection hole positions cannot be aligned, so that the conditions of assembling and disassembling clamping stagnation and high difficulty are caused, and therefore the detection result is influenced.

In summary, in order to overcome the defect of replacing the module of the conventional checking fixture, an exchange mechanism convenient to operate needs to be designed.

Disclosure of Invention

To the technical problem that exists at present, the utility model provides an exchange mechanism to solve among the prior art because the various problems that the structural constraint leads to.

In order to achieve the purpose of the invention, the utility model provides the following technical scheme:

an exchange mechanism comprises a fixed seat and an exchange block connected with the upper end of the fixed seat, wherein the fixed seat is provided with an installation through groove, the lower end of the interchange block is connected with a positioning block which can extend into the installation through groove, a waist-shaped hole penetrates through the positioning block, a first mounting hole and a second mounting hole which are communicated with the mounting through groove are arranged on the fixed seat, the axial leads of the first mounting hole and the second mounting hole are vertical, a rotating shaft is mounted in the first mounting hole, one end of the rotating shaft extending into the mounting through groove is connected with an eccentric shaft, the other end of the rotating shaft is connected with an operating handle, a limiting groove is spirally arranged on the periphery of one end of the rotating shaft close to the positioning block, a ball screw is arranged in the second mounting hole, one end of the wave ball screw, which is close to the installation through groove, extends into the limiting groove, and the eccentric shaft can extend into or extend out of the waist-shaped hole under the driving of the operating handle.

Above-mentioned technical scheme, connect corresponding utensil of examining during the use on exchanging the piece, couple together locating piece and exchange the piece, then install in the logical inslot of installation of fixing base, through operating handle to the rotatory pivot of regulation direction, the pivot is at the rotation in-process, the tip of ripples pearl screw moves along the spacing groove, stretch into waist type downthehole when the eccentric shaft, ripples pearl screw tip removes the extreme position to the spacing groove, and ripples pearl screw this moment supports and keeps off on the locating piece terminal surface, consequently locking mechanism is in locking state this moment, when relieving locking state, it can to the opposite direction rotation pivot through operating handle.

Preferably, a concave cavity is arranged at the lower end of the interchange block, and the upper end of the positioning block extends into the concave cavity and then is connected with the interchange block through a screw.

So set up, improved the stability and the reliability that locating piece and interchange piece are connected.

Preferably, through holes are distributed on the interchange block along the circumferential direction of the interchange block, a ball insert sleeve is arranged on the fixed seat corresponding to the through holes, and a positioning pin penetrates through the corresponding ball insert sleeve and the through holes.

So set up, inlay the cooperation of cover through locating pin and ball and realize the fixing base and exchange being connected of piece, exchange the difficult jamming of process, improved the accuracy and the smoothness nature of interchange process.

Preferably, the mounting through groove is of a rectangular structure, and the positioning block is a rectangular block matched with the mounting through groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an exchange mechanism, overall structure is simple, convenient operation, and the difficult jamming phenomenon that appears of exchange process, stability and smooth and easy nature are higher.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an internal cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 1;

fig. 4 is a partial schematic view of the present invention in a locked state;

fig. 5 is another angled view of fig. 4.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The interchange mechanism as shown in fig. 1-5 comprises a fixed seat 1 and an interchange block 2, wherein the fixed seat 1 and the interchange block 2 are both rectangular in structure, a mounting through groove 10 is arranged at the middle position of the fixed seat 1, the mounting through groove 10 is rectangular in structure, the lower end of the interchange block 2 is connected with a positioning block 3 capable of extending into the mounting through groove 10, the positioning block 3 is rectangular in structure matched with the mounting through groove 10, a waist-shaped hole 30 penetrates through the positioning block 3, the connection line of two circle centers on the waist-shaped hole 30 is parallel to the horizontal line, a first mounting hole 12 and a second mounting hole 13 which are communicated with the mounting through groove 10 are arranged on the fixed seat 1, the axial leads of the first mounting hole 12 and the second mounting hole 13 are perpendicular, a rotating shaft 4 is mounted in the first mounting hole 12, one end of the rotating shaft 4 extending into the mounting through groove 10 is connected with an eccentric shaft 5, and the other end is connected with two operating handles 6, the periphery of the end, close to the positioning block 3, of the rotating shaft 4 is spirally provided with a limiting groove 40, a wave bead screw 8 is installed in the second installation hole 13, one end, close to the rotating shaft 4, of the wave bead screw 8 extends into the limiting groove 40, the end portion of the wave bead screw 8 moves in the limiting groove 40 when the rotating shaft 4 rotates, and the eccentric shaft 5 can extend into or extend out of the waist-shaped hole 30 under the driving of the operating handle 6.

A concave cavity 21 is arranged at the lower end of the interchanging block 2, and the upper end of the positioning block 3 is connected with the interchanging block 2 through a screw after extending into the concave cavity 21. Through holes are distributed on the interchange block 2 along the circumferential direction, a ball insert sleeve 11 is arranged on the fixed seat 1 corresponding to the through holes, and a positioning pin 7 penetrates through the corresponding ball insert sleeve 11 and the through holes so as to fix the fixed seat 1 and the interchange block 2.

When the locking mechanism is used, the positioning block 3 is connected to the interchanging block 2 through a screw, the interchanging block 2 is connected to the fixing seat 1, the positioning pin 7 is inserted into the through hole in the interchanging block 2 and the ball insert sleeve 11 in the fixing seat 1 to fix the interchanging block 2, then the operating handle 6 is rotated according to the identification direction on the fixing seat 1 to drive the rotating shaft 4 to rotate, the end part of the wave ball screw 8 moves in the limiting groove 40 at the moment, the eccentric shaft 5 extends into the kidney-shaped hole 30 in the positioning block 3, the end part of the wave ball screw 8 moves to the limit position of the limiting groove 40 at the moment, and the wave ball screw 8 abuts against the end face of the positioning block 3 at the moment, so that the interchanging mechanism is in a locking state (refer to figures 4 and 5), when the interchanging mechanism needs to be loosened, the operating handle 6 is operated according to the identification direction, and.

The foregoing describes preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. An exchange mechanism, characterized in that: comprises a fixed seat (1) and an exchange block (2) connected at the upper end of the fixed seat (1), wherein an installation through groove (10) is arranged on the fixed seat (1), the lower end of the exchange block (2) is connected with a positioning block (3) capable of extending into the installation through groove (10), a waist-shaped hole (30) penetrates through the positioning block (3), a first mounting hole (12) and a second mounting hole (13) which are communicated with the installation through groove (10) are arranged on the fixed seat (1), the axial lines of the first mounting hole (12) and the second mounting hole (13) are vertical to each other, a rotating shaft (4) is arranged in the first mounting hole (12), one end of the rotating shaft (4) extending into the installation through groove (10) is connected with an eccentric shaft (5), the other end of the rotating shaft is connected with an operating handle (6), a limiting groove (40) is spirally arranged on the periphery of one end of the rotating shaft (4) close to the positioning block (3), wave ball screws (8) are installed in the second installation holes (13), one ends, close to the installation through grooves (10), of the wave ball screws (8) extend into the limiting grooves (40), and the eccentric shafts (5) can extend into or extend out of the waist-shaped holes (30) under the driving of the operation handles (6).

2. The interchange mechanism according to claim 1, wherein: a concave cavity (21) is formed in the lower end of the interchange block (2), and the upper end of the positioning block (3) extends into the concave cavity (21) and then is connected with the interchange block (2) through a screw.

3. The interchange mechanism according to claim 1 or 2, characterized in that: through holes are distributed on the interchange block (2) along the circumferential direction of the interchange block, a ball embedding sleeve (11) is installed on the fixed seat (1) corresponding to the through holes, and a positioning pin (7) penetrates through the corresponding ball embedding sleeve (11) and the through holes.

4. The interchange mechanism according to claim 3, wherein: the mounting through groove (10) is of a rectangular structure, and the positioning block (3) is a rectangular block matched with the mounting through groove (10).