CN204413666U - Accurate centralizer - Google Patents

Abstract

The utility model relates to a precision centering fixture, which includes a clamp body, and is characterized in that: a positioning plane block is installed on the clamp body, a pressing plate is fixed on the clamp body through a pressure plate support rod, and the upper end of the pressing plate is set to be aligned with the positioning plane The movable pressure plate corresponding to the block, the pressure plate limit rod is set between the pressure plate and the clamp body, the pressure plate limit rod is located at the lower end of the positioning plane block; the positioning pin is set on the positioning plane block, and the outer surface side of the positioning pin An opening slot for the positioning pin is provided; a lateral jacking block is installed on the clamp body located on one side of the opening slot of the positioning pin, and a lateral locking screw is arranged on the lateral jacking block. A circumferential limit block is installed on the clamp body on the upper part of the positioning plane block, and a circumferential limit bar is arranged on the circumferential limit block. The movable pressing plate is fixed on the pressing plate by locking screws. The utility model has higher positioning and centering precision, is suitable for products with higher centering requirements, and ensures the qualified rate of parts.

Description

Precision centering fixture

technical field

The utility model relates to a precise centering fixture for parts with higher centering requirements, in particular to a fixture for processing automobile turbocharger parts.

Background technique

The centering fixture in the traditional sense is mainly composed of a clamp body, a positioning device, a pressing device, etc.; when the positioning accuracy is generally required to be high, it is difficult for ordinary circular positioning pins to ensure the accuracy of positioning and centering, resulting in poor processing , leading to low yield.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, to provide a precise centering fixture, which has a high and accurate centering effect, ensures the qualified rate of parts, and improves the efficiency.

According to the technical solution provided by the utility model, the precise centering fixture includes a clamp body, which is characterized in that: a positioning plane block is installed on the clamp body, and the pressure plate is fixed on the clamp body through a pressure plate support rod. A movable pressure plate corresponding to the positioning plane block is arranged at the upper end, a pressure plate limit rod is set between the pressure plate and the clamp body, and the pressure plate limit rod is located at the lower end of the positioning plane block; a positioning pin is set on the positioning plane block, and the positioning pin The side part of the outer surface of the positioning pin is provided with an open slot for the positioning pin; a lateral jacking block is installed on the clamp body located on one side of the opening slot of the positioning pin, and a lateral locking screw is arranged on the lateral jacking block.

Further, a circumferential limiting block is installed on the clamp body above the positioning plane block, and a circumferential limiting rod is arranged on the circumferential limiting block.

Further, the movable pressing plate is fixed on the pressing plate by locking screws.

Further, a pressing plate limiting pin is set on the pressing plate opposite to the movable pressing plate.

Further, a stressed pressing block is arranged on the side of the movable pressing plate facing the positioning plane block.

The utility model has the following advantages: the utility model has higher positioning and centering precision, is suitable for products with higher centering requirements, and ensures the qualified rate of parts.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the front view of the utility model.

FIG. 3 is a side view of FIG. 2 .

Detailed ways

Below in conjunction with specific accompanying drawing, the utility model is further described.

As shown in Figures 1 to 3: the precise centering fixture includes a clamp body 1, a circumferential limit rod 2, a circumferential limit block 3, a movable pressure plate 4, a locking screw 5, a pressure plate limit rod 6, Pressing plate support rod 7, positioning plane surface block 8, lateral locking screw 9, lateral jacking block 10, positioning pin opening groove 11, positioning pin 12, force pressing block 13, pressing plate limit pin 14, pressing plate 15 etc.

As shown in Figures 1 to 3, the utility model includes a clamp body 1, a positioning plane block 8 is installed on the clamp body 1, and a pressure plate 15 is fixed on the clamp body 1 by a pressure plate support rod 7, and the upper end of the pressure plate 15 is arranged with The movable pressing plate 4 corresponding to the positioning plane block 8, the pressing plate limit rod 6 is arranged between the pressing plate 15 and the clamp body 1, and the pressing plate limit rod 6 is located at the lower end of the positioning plane block 8; Locating pin 12, the outer surface side of locating pin 12 is provided with locating pin opening groove 11; On the folder body 1 that is positioned at described locating pin opening groove 11 sides, install lateral jacking block 10, on the lateral jacking block 10 Set lateral locking screw 9;

A circumferential limiting block 3 is installed on the clamp body 1 on the upper part of the positioning plane block 8, and a circumferential limiting rod 2 is arranged on the circumferential limiting block 3;

The movable pressing plate 4 is fixed on the pressing plate 15 by the locking screw 5, and the pressing plate limit pin 14 is set on the pressing plate 15 on the other side relative to the movable pressing plate 4; One side of the planar block 8 is provided with a stressed pressing block 13 .

The working principle of the utility model: the utility model makes the positioning pin 12 into an opening form, uses the positioning pin 12 to locate the center of the part, and then makes the lateral jacking block 10 bear force on the workpiece through the locking screw 9, so that the positioning pin 12 acts as a V-shaped block, so as to eliminate the positioning error between the positioning part and the positioning pin 12 in the Y direction; while the positioning gap error in the X direction is forced to the workpiece through the lateral jacking block 10, so that the part moves toward the negative direction of X. Go in the direction to eliminate the gap in the X positive direction of the part, so that the center of the part and the center of the positioning pin are at the same position every time, so that the positioning errors in the X and Y directions can be basically consistent every time.

Claims (5)

1. an accurate centralizer, comprise clamp body (1), it is characterized in that: at described clamp body (1) upper installation plane of orientation block (8), by platen support bar (7) fixation clip block (15) on clamp body (1), the upper end of clamp block (15) arranges the movable pressing plate (4) corresponding with plane of orientation block (8), arrange pressing plate gag lever post (6) between clamp block (15) and clamp body (1), pressing plate gag lever post (6) is positioned at the lower end of plane of orientation block (8); Described plane of orientation block (8) arranges alignment pin (12), and the outer surface sidepiece of alignment pin (12) arranges alignment pin open slot (11); At the upper installation side of the clamp body (1) being positioned at described alignment pin open slot (11) side to top power block (10), side direction top power block (10) is arranged side direction lock screw (9).

2. precisely centralizer as claimed in claim 1, is characterized in that: the clamp body (1) on described plane of orientation block (8) top is upper installs circumferential limited block (3), circumferential limited block (3) is arranged circumferential gag lever post (2).

3. precisely centralizer as claimed in claim 1, is characterized in that: described movable pressing plate (4) is fixed on clamp block (15) by lock screw (5).

4. precisely centralizer as claimed in claim 1, is characterized in that: arranging pressing plate spacer pin (14) relative on the clamp block (15) of movable pressing plate (4) opposite side.

5. precisely centralizer as claimed in claim 1, is characterized in that: on described movable pressing plate (4), arrange stressed compact heap (13) towards the one side of plane of orientation block (8).