Main shaft rigidity test bench

Abstract

The utility model discloses a main shaft rigidity test bench, and relates to the technical field of main shaft rigidity test. The device comprises a workbench, a top block, a thrust screw, a dynamometer, a carriage, a linear guide rail, an anti-rotation support member, a radial ring, a main shaft and a dial indicator. The top block, the linear guide rail and the main shaft are fixed on the workbench through bolts, and the linear guide rail is located between the top block and the main shaft; the dial gauge base is adsorbed on the workbench, a gauge head is hit on the end face of the main shaft when the axial rigidity is detected, and the gauge head is hit on a side bus of the main shaft when the radial rigidity of the shaft is detected. According to the main shaft rigidity test bench, the axial force and the radial force applied to the main shaft and the deformation amount of the main shaft can be rapidly obtained, and the axial rigidity and the radial rigidity of the main shaft can be visually represented by combining the dynamometer and the dial indicator.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the rigid test technical field of main shaft, especially is concerned with the main shaft rigid test platform. BACKGROUND

[0002] The grinding wheel of the numerical control gear grinding machine is installed on the main shaft, and the axial and radial rigidity of the main shaft has a great influence on the precision of gear grinding. The existing main shaft rigidity test method is mostly for axial rigidity measurement of the main shaft, and less attention is paid to the radial rigidity of the main shaft. Therefore, the main shaft rigidity test platform is provided to solve the above problems. UTILITY MODEL CONTENTS

[0003] The utility model discloses a main shaft rigidity test platform, which has the advantages of convenient detection of the axial rigidity and radial rigidity of the main shaft.

[0004] To solve the above technical problems, the utility model is realized through the following technical schemes.

[0005] The utility model discloses a main shaft rigidity test platform, which includes a workbench, a top block, a thrust screw, a dynamometer, a drag plate, a linear guide rail, an anti-rotation support piece, a radial ring, a main shaft and a micrometer.

[0006] The utility model further sets up that the middle of top block is equipped with threaded through -hole, can use spanner to spin the thrust screw, exerts the thrust on the drag plate, and force is transmitted to the main shaft through the dynamometer, the anti-rotation support piece or the radial ring.

[0007] The utility model further sets up that the anti-rotation support piece includes a fixed plate, two horizontal rods and a vertical rod, and a through -hole is formed in the fixed plate.

[0008] The utility model further sets up that the radial ring outer wall is provided with a positioning hole, and the measuring head of the dynamometer extends to the inside of the positioning hole.

[0009] The utility model further sets up that the size of the force exerted on the main shaft can be directly read out through the dial of the dynamometer, axial force or radial force can be exerted on the main shaft by converting the position of the dynamometer, and the deformation size of the main shaft can be directly read out through the micrometer.

[0010] The main shaft rigidity test bench has the advantages that axial force and radial force applied on the main shaft are obtained, and the deformation amount of the main shaft is fast, and the axial rigidity and radial rigidity of the main shaft can be intuitively represented in combination with the dynamometer and the micrometer. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used for the embodiment description.

[0012] Figure 1 The main shaft rigidity test bench has the advantages that axial force and radial force applied on the main shaft are obtained, and the deformation amount of the main shaft is fast, and the axial rigidity and radial rigidity of the main shaft can be intuitively represented in combination with the dynamometer and the micrometer. Figure 1 .

[0013] Figure 2 The main shaft rigidity test bench has the advantages that axial force and radial force applied on the main shaft are obtained, and the deformation amount of the main shaft is fast, and the axial rigidity and radial rigidity of the main shaft can be intuitively represented in combination with the dynamometer and the micrometer. Figure 2 .

[0014] Figure 3 The main shaft rigidity test bench has the advantages that axial force and radial force applied on the main shaft are obtained, and the deformation amount of the main shaft is fast, and the axial rigidity and radial rigidity of the main shaft can be intuitively represented in combination with the dynamometer and the micrometer.

[0015] Figure 4 The main shaft rigidity test bench has the advantages that axial force and radial force applied on the main shaft are obtained, and the deformation amount of the main shaft is fast, and the axial rigidity and radial rigidity of the main shaft can be intuitively represented in combination with the dynamometer and the micrometer.

[0016] Figure 5 The main shaft rigidity test bench has the advantages that axial force and radial force applied on the main shaft are obtained, and the deformation amount of the main shaft is fast, and the axial rigidity and radial rigidity of the main shaft can be intuitively represented in combination with the dynamometer and the micrometer.

[0017] In the drawings: 1, workbench; 2, top block; 3, thrust screw; 4, dynamometer; 5, drag plate; 6, linear guide rail; 7, anti-rotation support piece; 8, radial ring; 9, main shaft; 10, micrometer; 71, fixed plate; 72, transverse rod; 73, longitudinal rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model, and the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] Embodiment one

[0020] Please refer to Figures 1-5The utility model discloses a main shaft rigidity test platform, including workbench 1, top block 2, thrust screw 3, dynamometer 4, drag plate 5, linear guide 6, anti -rotation support spare 7, radial ring 8, main shaft 9 and micrometer 10, top block 2, linear guide 6 and main shaft 9 all are fixed on workbench 1 through bolt, and linear guide 6 is located between top block 2 and main shaft 9, and micrometer 10 base adsorption is in workbench 1, detects axial rigidity when table head hits the end face of main shaft 9, and detects axial rigidity when table head hits the side generatrix of main shaft 9, and drag plate 5 is fixed on the sliding block of linear guide 6, and dynamometer 4 is fixed on drag plate 5, and thrust screw 3 is rotated into top block 2, and anti -rotation support spare 7 is fixed on the end cover of main shaft 9, and radial ring 8 is sleeved on main shaft 9.

[0021] Specific: workbench 1 surface sets up threaded hole, facilitates top block 2, linear guide 6, main shaft 9 confirmation position, and installation is simple and convenient to dismount.

[0022] Example two

[0023] Please refer to Figures 1-5 On the basis of example one, top block 2 middle is equipped with threaded through -hole, can use spanner to rotate tightly thrust screw 3, exerts thrust on drag plate 5, and force is transmitted to main shaft 9 through dynamometer 4, anti -rotation support spare 7 or radial ring 8, and anti -rotation support spare 7 includes a fixed plate 71, two transverse rods 72 and a longitudinal rod 73, fixed plate 71 is equipped with through -hole, and anti -rotation support spare 7 is fixed on the end cover of main shaft 9 through screw, and radial ring 8 outer wall is provided with positioning hole, and the measuring head of dynamometer 4 extends to the inside of positioning hole, and the size of force exerted on main shaft 9 can be directly read out through the dial of dynamometer 4, and axial force or radial force can be exerted on main shaft 9 by converting the position of dynamometer 4, and the deformation size of main shaft 9 can be simply read out through micrometer 10.

[0024] Specific: the anti -rotation support is fixed on the end cover of main shaft 9 through bolt, and fixed plate 71 is close to workbench 1, plays the role of preventing main shaft 9 from rotating, and longitudinal rod 73 bears the thrust of dynamometer 4 and transmits the thrust to main shaft 9, and radial ring 8 is sleeved on main shaft 9, and positioning hole is set up on the sleeve outer wall of radial ring 8, and when carrying out radial rigidity detection, dynamometer 4 is inserted into radial ring 8, and the force area of main shaft 9 can be increased.

[0025] The working principle of the utility model is as follows: top block 2 middle is equipped with threaded through -hole, rotates thrust screw 3 out of top block 2, and is propped up on drag plate 5, pushes dynamometer 4 to move forward, exerts thrust on anti -rotation support spare 7 and transmits to main shaft 9, and the axial force exerted on main shaft 9 is obtained by reading the dial value of dynamometer 4, and similarly, dynamometer 4 exerts thrust on radial ring 8 and transmits to main shaft 9, and the radial force exerted on main shaft 9 can be read out.

[0026] The dial gauge 10 is adsorbed on the workbench 1, the dial head is hit on the end surface of the main shaft 9, the change of the pointer is observed when the axial force is applied, the deformation of the main shaft 9 can be read, and the dial head is hit on the side generatrix of the main shaft 9 when the shaft radial rigidity is detected.

[0027] The main shaft rigidity test bench is convenient and simple to assemble and disassemble, axial force and radial force applied on the main shaft 9 and deformation of the main shaft 9 are quickly obtained, the axial rigidity and the radial rigidity of the main shaft 9 can be directly shown by combining the force gauge 4 and the dial gauge 10.

[0028] The preferred embodiments disclosed above are only used for helping to describe the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific embodiments, the embodiments are selected and specifically described in the specification, in order to better explain the principle and practical application of the utility model, so that the technical personnel in the art can well understand and utilize the utility model.

Claims

1. A main shaft rigidity test bench, characterized by: The device comprises a workbench (1), a top block (2), a thrust screw (3), a dynamometer (4), a drag plate (5), a linear guide (6), an anti-rotation support (7), a radial ring (8), a main shaft (9) and a micrometer (10); The top block (2), the linear guide (6) and the main shaft (9) are fixed on the workbench (1) by bolts, and the linear guide (6) is located between the top block (2) and the main shaft (9); The micrometer (10) is adsorbed on the workbench (1), and the head of the micrometer (10) is placed on the end face of the main shaft (9) when detecting axial rigidity, and the head of the micrometer (10) is placed on the side generatrix of the main shaft (9) when detecting radial rigidity; The drag plate (5) is fixed on the sliding block of the linear guide (6), and the dynamometer (4) is fixed on the drag plate (5); The thrust screw (3) is screwed into the top block (2); The anti-rotation support (7) is fixed on the end cover of the main shaft (9), and the radial ring (8) is sleeved on the main shaft (9).

2. The spindle rigidity test stand of claim 1, wherein: A threaded hole is arranged in the middle of the top block (2), the thrust screw (3) can be screwed by using a wrench, the thrust force is applied on the drag plate (5), and the force is transmitted to the main shaft (9) through the dynamometer (4), the anti-rotation support (7) or the radial ring (8).

3. The spindle rigidity test stand of claim 1, wherein: The anti-rotation support (7) comprises a fixed plate (71), two transverse rods (72) and a longitudinal rod (73), and a through hole is formed in the fixed plate (71), and the anti-rotation support (7) is fixed on the end cover of the main shaft (9) by screws.

4. The spindle rigidity test stand of claim 1, wherein: The outer wall of the radial ring (8) is provided with a positioning hole, and the measuring head of the dynamometer (4) extends into the positioning hole.

5. The spindle rigidity test stand of claim 1, wherein: The size of the force applied on the main shaft (9) can be directly read out through the dial of the dynamometer (4); axial force or radial force can be applied on the main shaft (9) by converting the position of the dynamometer (4); and the deformation size of the main shaft (9) can be directly read out through the micrometer (10).

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