Tension measuring device for detecting fit clearance between boring rod and boring sleeve

Abstract

The utility model relates to a tension measuring device for detecting a fit clearance between a boring bar and a boring sleeve, V-shaped frames arranged in a line are arranged on a working table, two adjacent V-shaped frames are respectively supported at two ends of the outer circumference of the boring sleeve, the rightmost V-shaped frame is supported at the bottom of the outer circumference of the boring bar, and the rightmost V-shaped frame is supported at the bottom of the boring bar. The two V-shaped frames at the right end are located on the two sides of the flange plate at the right end of the boring sleeve correspondingly. A supporting table is arranged at the rightmost end of the working table face and movably connected with an electric air cylinder, and a piston rod of the electric air cylinder is connected with the end face of the boring rod through an S-shaped force transducer. The pulling force measuring device can accurately measure the pulling force value, judges the minimum starting force required for sliding after the boring rod and the boring sleeve are matched, and further judges whether the fit clearance is qualified or not.

Description

Technical Field

[0001] The utility model relates to a tension measuring device for detecting the matching clearance between a boring bar and a boring sleeve, belonging to the technical field of matching accuracy measurement between a boring bar and a boring sleeve. Background Art

[0002] The boring bar and boring sleeve are the core components of the boring machine. Their performance and fit clearance accuracy determine the machining accuracy, operation stability and service life of the boring machine. The size of the fit error between the boring bar and the boring sleeve is an important basis for evaluating the performance of the boring machine. The fit clearance between the boring bar and the boring sleeve is an important indicator to ensure the machining accuracy of the boring machine. The fit tolerance of the boring bar and the boring sleeve is 0.008-0.015mm. The existing detection method is that the operator manually pulls to judge the fit clearance between the boring bar and the boring sleeve, which not only wastes manpower, but also the manual judgment standards are inconsistent, resulting in the problem of unqualified products flowing into the next link, which in turn causes a waste of processing costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a measuring device for detecting the tension of the clearance between a boring bar and a boring sleeve. The measuring device is used to quantitatively determine the tightness of the boring bar and the boring sleeve, accurately measure the tension value, determine the minimum starting force required for the sliding of the boring bar and the boring sleeve after they are matched, and then determine whether the matching clearance is qualified.

[0004] In order to solve the above problems, the specific technical scheme of the utility model is as follows: a tension measuring device for detecting the clearance between a boring bar and a boring sleeve, wherein a V-shaped frame arranged in a straight line is provided on a work table, wherein two adjacent V-shaped frames are respectively supported at the two ends of the outer circumference of the boring sleeve, the rightmost V-shaped frame is supported at the bottom of the outer circumference of the boring bar, and the two V-shaped frames at the right end are respectively located on both sides of the flange plate at the right end of the boring sleeve; a support platform is provided at the rightmost end of the work table, and an electric cylinder is movably connected to the support platform, and the piston rod of the electric cylinder is connected to the end face of the boring bar through an S-shaped force sensor.

[0005] A double-ear support is provided on the upper surface of the support platform, and the cylinder seat of the electric cylinder is movably connected to the double-ear support via a rotating shaft.

[0006] One end of the S-shaped force sensor away from the electric cylinder is connected to a gasket, and the gasket is connected to the end face of the boring bar through a screw.

[0007] The tension measuring device for detecting the clearance between the boring bar and the boring sleeve of the present application adopts the above structure, and can control the movement of the boring bar in the boring sleeve through the cylinder. The larger the clearance between the boring bar and the boring sleeve, the smaller the force required by the cylinder to push the boring bar, and the reading of the force sensor can indicate the size of the clearance. The electric cylinder can measure the clearance between the boring bar and the boring sleeve under various position conditions by controlling the measuring range. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Structural diagram of the tension measuring device for detecting the clearance between the boring bar and the boring sleeve.

[0009] Figure 2 This is a schematic diagram of the external connections of the S-type force sensor. DETAILED DESCRIPTION

[0010] like Figure 1 and Figure 2 As shown, a tension measuring device for detecting the clearance between a boring bar and a boring sleeve is provided on a work table 4. V-shaped frames 3 arranged in a straight line are provided, wherein two adjacent V-shaped frames 3 are respectively supported at two ends of the outer circumference of the boring sleeve 2, the rightmost V-shaped frame 3 is supported at the bottom of the outer circumference of the boring bar 1, and the two V-shaped frames 3 at the right end are respectively located at both sides of the flange plate at the right end of the boring sleeve 2; a support platform 9 is provided at the rightmost end of the work table 4, and an electric cylinder 7 is movably connected to the support platform 9, and the piston rod of the electric cylinder 7 is connected to the end face of the boring bar 1 through an S-shaped force sensor 6.

[0011] The upper surface of the support platform 9 is provided with a double-ear support 8, and the cylinder seat of the electric cylinder 7 is movably connected to the double-ear support 8 through a rotating shaft. The connection structure of the double-ear support 8 can ensure that the pulling force of the electric cylinder 7 is consistent with the axial direction of the boring bar and the boring sleeve.

[0012] The end of the S-shaped force sensor 6 away from the electric cylinder 7 is connected to the gasket 5, and the gasket 5 is connected to the end face of the boring bar 1 by a screw. The gasket 5 plays an auxiliary connection role, and at the same time, the surface is fitted with the end face of the boring bar 1, further ensuring the vertical tension between the S-shaped force sensor 6 and the boring bar.

Claims

1. A tension measuring device for detecting the clearance between a boring bar and a boring sleeve, characterized in that: A V-shaped frame (3) arranged in a straight line is provided on the work table (4), wherein two adjacent V-shaped frames (3) are respectively supported on the two ends of the outer circumference of the boring sleeve (2), the rightmost V-shaped frame (3) is supported on the bottom of the outer circumference of the boring bar (1), and the two V-shaped frames (3) at the right end are respectively located on both sides of the flange plate at the right end of the boring sleeve (2); a support platform (9) is provided at the rightmost end of the work table (4), and an electric cylinder (7) is movably connected to the support platform (9), and the piston rod of the electric cylinder (7) is connected to the end face of the boring bar (1) through an S-shaped force sensor (6).

2. The tension measuring device for detecting the clearance between a boring bar and a boring sleeve according to claim 1, characterized in that: A double-ear support (8) is provided on the upper surface of the support platform (9), and a cylinder seat of the electric cylinder (7) is movably connected to the double-ear support (8) via a rotating shaft.

3. The tension measuring device for detecting the clearance between a boring bar and a boring sleeve according to claim 1, characterized in that: One end of the S-shaped force sensor (6) away from the electric cylinder (7) is connected to a gasket (5), and the gasket (5) is connected to the end surface of the boring bar (1) via a screw.

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