CN106584766A - Alignment mechanism - Google Patents

Abstract

The invention belongs to the field of design of injection mold mechanisms and relates to an alignment mechanism. The alignment mechanism comprises an alignment positioning base, a middle jacking block, a pressing screw rod, alignment jacking blocks and alignment pressing blocks, wherein the middle jacking block is arranged at the symmetry axis of the alignment positioning base; a positioning pressure plate is fixed to the top face of the alignment positioning base through screws; the pressing screw rod penetrates through the positioning pressure plate and is pressed towards the middle jacking block and then pressed into the center of the middle jacking block; the alignment pressing blocks are symmetrically arranged on the two sides of the alignment positioning base; each alignment jacking block is connected between the corresponding alignment pressing block and the alignment positioning base; and springs are symmetrically arranged on the front side and the rear side of each alignment jacking block through screws. The alignment mechanism can be fine adjusted in the elasticity range of the springs through elasticity of the springs, and the purpose of accurately positioning the center line of a product is achieved.

Description

a centering mechanism

technical field

The invention relates to the design field of injection mold processing mechanisms, in particular to a mold centering mechanism.

Background technique

For products such as injection molded parts, most of them need to use inspection tools to judge whether they meet the requirements and whether they are qualified. Most of the existing gage positioning is that the reference surface of the product is closely attached to the positioning surface of the gage to achieve the positioning effect. However, the positioning reference of some products is in the center of the product, which is a virtual reference. When the positioning surface is set on the product At both ends, it is not guaranteed that the product is at the center of the reference, and there may be an offset, resulting in an error in the measurement of the product by the gage, so that the gage cannot reflect the state of the product well.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the prior art, and provide a positioning of the inspection tool that enables the product reference and the positioning of the inspection tool to be in a centered state when the product reference is at the center, enabling the detection mechanism to accurately position the product Alignment agency. The present invention adopts the following scheme: a centering mechanism, including a centering positioning seat, an intermediate pressing block, a pressing screw, a centering pressing block and a centering pressing block. At the axis of symmetry of the seat, the top surface of the centering positioning seat is fixed with a positioning pressure plate by screws, and the compression screw penetrates through the positioning pressure plate and presses to the middle clamping block, and is pressed into the center of the middle clamping block. Both sides of the centering positioning seat are symmetrically provided with centering pressing blocks, and a centering pressing block is connected between the centering pressing block and the centering positioning seat, and the front and rear sides of the centering pressing block Springs are provided symmetrically via the screws.

As a preference, the height of the intermediate clamping block is lower than the centering positioning seat, and a gap is formed between the intermediate clamping block, the centering positioning seat and the positioning pressure plate, and the bottom of the intermediate clamping block is a cone with a large upper part and a smaller lower part. body.

As a preference, the centering clamping block is matched with the vertebral slope of the middle clamping block, the centering clamping block and the centering pressing block are fixed by screws, and the centering clamping block is fixed according to the force of the spring. The elastic is provided with limit strips.

Preferably, a spring washer for preventing wear is provided between the spring and the screw.

Beneficial effects: the centering mechanism of the present invention can use the elasticity of the spring to fine-tune the centering mechanism within the elastic range of the spring to accurately locate the center line of the product. The block and the middle pressing block are against each other, and the pressing block is centered by the pressing screw to complete the preliminary centering. By pressing the spring, the position of the screw on the limit bar is moved to further adjust the center line, so that The position of the line is more precise.

Description of drawings

Fig. 1 is the front sectional view of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is the top view of the present invention;

In the figure: centering positioning seat 1, positioning pressure plate 2, compression screw 3, centering clamping block 4, middle clamping block 5, centering clamping block 6, screw 7, spring washer 8, limit bar 9 , Spring 10.

detailed description

Figures 1-3 are related explanatory diagrams of the present invention; a centering mechanism, including a centering positioning seat 1, an intermediate pressing block 5, a pressing screw 3, a centering pressing block 4, and a centering pressing block 6. The middle clamping block 5 is set at the symmetrical axis of the centering positioning seat 1, and the positioning pressure plate 2 is fixed on the top surface of the centering positioning seat 1 through the screw 7, and the pressing screw 3 penetrates the positioning pressure plate 2 and presses it to the middle for tightening. Block 5, and pressed into the center of the middle pressing block 5, centering pressing blocks 6 are symmetrically arranged on both sides of the centering positioning seat 1, and a pair of pressing blocks 6 are connected between the centering pressing block 6 and the centering positioning seat 1 In the top tight block 4, springs 10 are symmetrically arranged on the front and rear sides of the center top tight block 4 through screws 7.

As a preference, the height of the intermediate clamping block 5 is lower than the centering positioning seat 1, and a gap is formed between the intermediate clamping block 5, the centering positioning seat 1 and the positioning pressure plate 2, and the bottom of the intermediate clamping block 5 is large up and down. of cones.

As preferably, the centering clamping block 4 is matched with the vertebral body slope of the middle clamping block 5, the centering clamping block 4 and the centering clamping block 6 are fixed by screws 7, and the centering clamping block 4 is fixed according to the spring 10 The elasticity is provided with limit bar 9.

Preferably, a spring washer 8 for preventing wear is provided between the spring 10 and the screw 7 .

Working principle: The centering mechanism pushes the centering pressing blocks on both sides of the centering positioning seat, so that the centering pressing blocks are as close as possible to the middle pressing block until the centering pressing block and the middle pressing block abut against each other. Due to the use of the equipment and the problem of uneven force, it is difficult to accurately center the preliminary alignment. Therefore, the error can be reduced by adjusting the screw position on the limit bar, and the tightness of the compression screw can also be reduced. error.

The centering mechanism of the present invention can use the elasticity of the spring to fine-tune the centering mechanism within the elastic range of the spring to accurately locate the center line of the product. The top clamping blocks are against each other, and the compression block is centered by the compression screw to complete the preliminary centering. By pressing the spring, the position of the screw on the limit bar is moved, so as to further adjust the center line, so that the position of the center line It is more accurate, and the position of the center line can also be adjusted by adjusting the tightness of the compression screw, so the centering mechanism makes the centering accuracy higher through multi-directional adjustment and respective cooperation. Moreover, the design structure of the centering mechanism is simple and compact, and the operation is simple and convenient to use.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention, and those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but It does not depart from the spirit of the invention or go beyond the scope defined by the appended claims.

Claims (4)

1. a kind of centering body, it is characterised in that：Including centering positioning seat（1）, middle withstanding tight block（5）, clamping screw（3）, it is right Middle withstanding tight block（4）And centering compact heap（6）, the middle withstanding tight block（5）It is arranged at centering positioning seat（1）Symmetry axis at, The centering positioning seat（1）Top surface on pass through screw（7）It is fixed with positioning pressuring plate（2）, the clamping screw（3）Through positioning Pressing plate（2）Press to middle withstanding tight block（5）, and it is pressed into middle withstanding tight block（5）Center, the centering positioning seat（1）Both sides It is symmetrically arranged with centering compact heap（6）, the centering compact heap（6）With centering positioning seat（1）Between be connected with centering withstanding tight block （4）, the centering withstanding tight block（4）Before and after both sides pass through screw（7）It is arranged with spring（10）.

2. a kind of centering body according to claim 1, it is characterised in that：The middle withstanding tight block（5）Height be less than Centering positioning seat（1）, middle withstanding tight block（5）, centering positioning seat（1）And positioning pressuring plate（2）Between form space, it is described in the middle of top Tight block（5）Bottom be in up big and down small cone.

3. a kind of centering body according to claim 1, it is characterised in that：The centering withstanding tight block（4）Hold out against with centre Block（5）Centrum inclined-plane matching arrange, the centering withstanding tight block（4）With centering compact heap（6）By screw（7）It is fixed, it is described Centering withstanding tight block（4）On according to spring（10）Elasticity be provided with positive stop strip（9）.

4. a kind of centering body according to claim 1, it is characterised in that：The spring（10）With screw（7）Between set There is the spring shim for preventing from wearing and tearing（8）.