CN205120019U - A appurtenance for detecting machined surface plane degree - Google Patents

Abstract

Auxiliary tools for testing the flatness of the processing surface, including a base and a push rod; the base is in the shape of an upright cylinder, with a through hole in the middle in the axial direction; bolt holes and bolt holes are radially provided on the lower end of the base. The hole is connected with the through hole, and the bolt hole is screwed with a stop bolt; the ejector rod is a straight rod, and the top of the ejector rod is a tapered tip, and the outer circular surface of the ejector rod section below the tip is provided with an external thread , and a ring-shaped adjustment seat is spirally fitted on the external thread of the ejector rod: the bottom end of the ejector rod is radially recessed with a stop groove; the ejector rod is vertically inserted into the through hole of the base, and the ejector rod The adjusting seat on the external thread is in contact with the bottom surface of the base, and the stop bolt at the bottom of the base extends into the stop groove of the ejector rod, and the axial positioning of the ejector rod is realized through the radial movement of the stop bolt. The utility model has the advantages of simple structure, convenient and rapid adjustment of the position of the ejector rod, improved precision and reliability of later assembly of the parts, and improved work efficiency of testing the flatness of the parts.

Description

Auxiliary tool for checking the flatness of the machined surface

technical field

The utility model belongs to the technical field of component detection, in particular to an auxiliary tool for detecting the flatness of a processing surface.

Background technique

Detecting the flatness of the processing surface of parts is one of the routine inspection items of the quality inspection department. The flatness of the processing surface of parts directly affects the assembly quality and reliability of the whole machine. At present, the commonly used detection method is to place the parts on the calibrated marble table first, and then use a height gauge with a digital display function to measure. The disadvantage of this method is that the machining accuracy of the contact surface between the part and the marble countertop cannot be guaranteed, which directly affects the subsequent measurement of the flatness of the part, resulting in a large error in the measurement result, and cannot guarantee the accuracy and reliability of the later assembly of the part. .

Utility model content

In order to solve the defects of large error in measurement results and low assembly accuracy and reliability in the existing parts processing surface flatness detection method, the utility model designs an auxiliary tool for detecting the flatness of the processing surface.

Auxiliary tools for testing the flatness of the processing surface, including base 1 and ejector rod 2;

The base 1 is in the shape of an upright cylinder, with a through hole 11 arranged in the middle axially; a bolt hole is radially arranged on the lower end of the base 1, and the bolt hole is connected with the through hole 11, and the bolt hole is helically fitted with a stop bolt 4;

The ejector rod 2 is a straight rod, and the top of the ejector rod 2 is a conical top 21, and the outer circular surface of the ejector rod 2 sections below the top 21 is provided with external threads, and the external threads of the ejector rod 2 are spirally fitted with Annular adjustment seat 3: the bottom end of the ejector rod 2 is radially recessed with a stop groove 5;

The ejector rod 2 is vertically inserted into the through hole 11 of the base 1, the adjustment seat 3 on the external thread of the ejector rod 2 is in contact with the bottom surface of the base 1, and the stop bolt 4 at the bottom of the base 1 extends into the bottom of the ejector rod 2 In the stop groove 5 , the axial positioning of the ejector rod 2 is realized through the radial movement of the stop bolt 4 .

The cone angle of the axial section of the tip 21 is 45°.

The cooperation between the push rod 2 and the through hole 11 on the base 1 is clearance fit.

Beneficial technical effects of the utility model:

(1) When testing parts, use three auxiliary tools to support the parts, rotate the adjustment seat to drive the ejector rod so that the three points on the processing surface of the part corresponding to the auxiliary tools are at the same height, and lock the ejector rod through the stop bolt; auxiliary The three points on the part corresponding to the tool form a datum plane, and the flatness of the part is tested by comparing other points on the processing surface with this datum plane; The precision and reliability of the post-assembly of parts improves the work efficiency of testing the flatness of parts.

(2) The utility model is provided with a stop bolt at the bottom of the base. When the parts are adjusted to the required height, the stop bolt on the base will act on the stop groove at the bottom of the ejector rod, Realize the axial positioning of the ejector rod, stabilize the parts at the required height, easy to operate and highly popularized.

(3) In the utility model, the tip of the ejector rod is designed with a cone angle of 45°, which can support any part of the workpiece, making the support more convenient.

Description of drawings

Fig. 1 is a schematic longitudinal section of the utility model.

Fig. 2 is the front view when the utility model is in use.

Fig. 3 is a right side view of Fig. 2 .

Serial numbers in the above picture: base 1, through hole 11, ejector rod 2, top 21, adjustment seat 3, stop bolt 4, stop groove 5, workpiece 6.

detailed description

See Figure 1, the auxiliary tool used to detect the flatness of the processing surface, including the base 1 and the ejector rod 2;

The base 1 is in the shape of an upright cylinder, with a through hole 11 arranged in the middle axially; a bolt hole is radially arranged on the lower end of the base 1, and the bolt hole is connected with the through hole 11, and the bolt hole is helically fitted with a Stop bolt 4, and on the stop bolt, there are nuts that are screwed together;

The push rod 2 is a straight rod, and the top of the push rod 2 is a conical top 21, and the cone angle of the axial section of the top 21 is 45°. The outer circular surface of the ejector rod 2 below the top 21 is provided with an external thread, and the external thread of the ejector rod 2 is screw-fitted with a ring-shaped adjustment seat 3: the bottom end of the ejector rod 2 is radially recessed and has a stop. Moving groove 5;

The ejector rod 2 is vertically inserted into the through hole 11 of the base 1, and the cooperation between the ejector rod 2 and the through hole 11 of the base 1 is clearance fit. The adjustment seat 3 on the external thread of the ejector rod 2 is in contact with the bottom surface of the base 1, and the up and down movement of the ejector rod 2 is realized through the rotation of the adjustment seat 3; the stop bolt 4 at the bottom of the base 1 extends into the stop groove of the ejector rod 2 5, through the radial movement of the stop bolt 4, the axial positioning of the ejector rod 2 is realized.

Referring to Fig. 2 and Fig. 3, during work, three utility models of the present invention are respectively placed on the plane to form a triangle; the workpiece 6 is placed on the tops of the three utility models, and the adjustment seat 3 is rotated to make the workpiece 6 The three points corresponding to the top are at the same height; the stop bolt 4 is rotated inward, pressed against the stop groove 5 of the push rod 2, and the nut is tightened to realize the axial positioning of the push rod 2.

Claims (3)

1. for detecting the aid of machined surface flatness, it is characterized in that: comprise pedestal (1), push rod (2);

Described pedestal (1), in upright cylindric, is axially arranged with through hole (11) in the middle part of it; On pedestal (1) bottom, to be provided with bolt hole, bolt hole and through hole (11) through for radial direction, and described bolt hole inside spin is combined with dogbolt (4);

Described push rod (2) is straight-bar, the top of push rod (2) is top (21) of taper, top (21) push rod below (2) segment body periphery is provided with external thread, and threaded engagement has the adjustment seat of ring-type (3) on the external thread of push rod (2): the footpath, bottom of described push rod (2) has concaved locking groove (5);

Push rod (2) is vertically plugged in the through hole (11) of pedestal (1), adjustment seat (3) on push rod (2) external thread contacts with the bottom surface of pedestal (1), the dogbolt (4) of pedestal (1) bottom puts in the locking groove (5) of push rod (2), by the axial location moving radially, realize push rod (2) of dogbolt (4).

2. the aid for detecting machined surface flatness according to claim 1, is characterized in that: the cone angle of described top (21) shaft section is 45 °.

3. the aid for detecting machined surface flatness according to claim 1, is characterized in that: described push rod (2) was clearance fit with pedestal (1) upper coordinating of through hole (11).