Shaft curvature measuring device

Abstract

The utility model provides a shaft curvature measuring device, relates to the technical field of shaft curvature measuring devices, and aims to solve the problems of low measurement accuracy, low measurement efficiency and incapability of meeting the measurement of a large batch of shaft bodies due to the fact that a shaft body is placed on a horizontal table and the curvature of the shaft body is observed and measured by rolling the shaft body in the conventional measurement method. Comprising a working seat, supporting blocks are evenly distributed at the bottom of the working seat, a base is slidably arranged on the working seat, a shaft part is installed in the base, the left end of the shaft part abuts against the inner wall of the base, an electric cylinder is fixedly connected into the base and located on the right side of the shaft part, a sliding rod is slidably connected into the electric cylinder, and the left end of the sliding rod is located on the right side of the shaft part. The left end of the sliding rod is fixedly connected with a clamping plate, the clamping plate abuts against the shaft part, the side, located on the base, of the working base is provided with a support, the support is detachably connected with a dial indicator measuring instrument, and the tail end of the dial indicator measuring instrument is provided with a spherical measuring head.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft curvature measuring devices, in particular to a shaft curvature measuring device. Background Art

[0002] During mechanical processing or engineering applications, larger and longer shafts are often involved. During processing and use, the errors caused by processing and the deformation of the shaft during use will affect the actual application of the project. The current measurement method is to place the shaft on a horizontal platform and measure its curvature by rolling the shaft. The measurement accuracy is not high and the measurement efficiency is low. It cannot meet the problem of measuring large quantities of shafts. Therefore, it is particularly important to design a shaft curvature measurement device to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that the current measurement method is to place the shaft body on a horizontal platform and measure its curvature by rolling the shaft body, which has low measurement accuracy and efficiency and cannot meet the needs of measuring large quantities of shaft bodies. A shaft curvature measuring device is proposed.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a shaft curvature measuring device, comprising a working seat, the bottom of the working seat is evenly distributed with support blocks, a base is slidably provided on the working seat, a shaft part is installed in the base, the left end of the shaft part is abutted against the inner wall of the base, an electric cylinder is fixedly connected to the base, the electric cylinder is located on the right side of the shaft part, a sliding rod is slidably connected to the electric cylinder, the left end of the sliding rod is fixedly connected to a splint, the splint is abutted against the shaft part, a bracket is installed on one side of the base on the working seat, the bracket is detachably connected to a dial indicator measuring instrument, and a spherical probe is provided at the end of the dial indicator measuring instrument.

[0005] Preferably, sliders are symmetrically mounted on the bottom of the base, convex balls are fixedly connected to the bottom of the sliders, and hydraulic cylinders are mounted on both sides of the sliders.

[0006] Preferably, the hydraulic cylinder is symmetrically mounted on the working seat, a push rod is slidably connected in the hydraulic cylinder, and one end of the push rod close to the slider is fixedly connected to the slider.

[0007] Preferably, the dial indicator measuring instrument can be slidably arranged in a stand, a limit block is installed in the stand, a screw is threadedly connected in the stand, and the limit block abuts against the outer wall of the dial indicator measuring instrument.

[0008] Preferably, the screw rod and the limit block are threadedly connected, and the shape of the inner wall of the limit block matches the outer shape of the dial indicator measuring instrument.

[0009] Compared with the prior art, the advantages and positive effects of the present invention are:

[0010] 1. In the utility model, during use, a base structure that can slide left and right is installed on the work seat, and the shaft part is limited in the base by the electric cylinder driving the slide rod to drive the splint. A dial indicator measuring instrument is detachably installed above the shaft part. The position of the dial indicator measuring instrument on the bracket relative to the shaft part is adjusted according to the size of the shaft part to be measured. When the actual measurement work is carried out, the hydraulic cylinders symmetrically distributed on both sides drive the push rod to drive the slider at the bottom of the base to slide, completing the test of the shaft surface of the shaft part. Compared with the conventional manual rolling of the shaft part by the staff The technical solution adopted by the utility model can realize the clamping and limiting of small-sized shaft parts, and then the hydraulic cylinders on both sides and related components drive the base equipped with the shaft parts to slide left and right, and the dial indicator measuring instrument above the shaft parts is used in conjunction with the spherical probe for measurement. The test results can be seen intuitively, the overall structure is compact, and it is easy for the staff to install and maintain. It solves the problem that the current measurement method is to place the shaft body on a horizontal platform and observe and measure its curvature by rolling the shaft body, which has low measurement accuracy and low measurement efficiency and cannot meet the measurement needs of large quantities of shaft bodies.

[0011] 2. In the present invention, during use, the spherical probe at the end of the dial indicator is adjusted to abut against the shaft part, and then the screw is tightened. First, the screw and the limit block are connected as a whole, and the screw is twisted toward the bracket until the limit block abuts against the outer wall of the dial indicator, so that the dial indicator is installed and limited in the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an overall diagram of the shaft curvature measuring device of the utility model;

[0013] Figure 2 This is a partial structural diagram of the bracket and the dial indicator measuring instrument in the shaft curvature measuring device of the utility model;

[0014] Legend: 1. Work seat; 101. Support block; 2. Base; 201. Slider; 202. Protruding ball; 3. Shaft part; 301. Electric cylinder; 302. Slide rod; 303. Clamp; 4. Bracket; 5. Dial indicator; 501. Spherical probe; 6. Hydraulic cylinder; 601. Push rod; 602. Limit block; 603. Screw. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] The utility model provides a shaft curvature measuring device, comprising a work seat 1, the bottom of the work seat 1 is evenly distributed with support blocks 101, a base 2 is slidably provided on the work seat 1, an axis part 3 is installed in the base 2, the left end of the axis part 3 is in contact with the inner wall of the base 2, an electric cylinder 301 is fixedly connected to the base 2, the electric cylinder 301 is located on the right side of the axis part 3, a slide rod 302 is slidably connected to the electric cylinder 301, the left end of the slide rod 302 is fixedly connected to a splint 303, the splint 303 is in contact with the axis part 3, and the work seat 1 is located on the base 2. A bracket 4 is installed on one side of the base 2. The bracket 4 is detachably connected to a dial indicator 5. A spherical probe 501 is provided at the end of the dial indicator 5. Sliders 201 are symmetrically installed on the bottom of the base 2. A convex ball 202 is fixedly connected to the bottom of the slider 201. Hydraulic cylinders 6 are installed on both sides of the slider 201. The hydraulic cylinders 6 are symmetrically installed on the working seat 1. A push rod 601 is slidably connected to the hydraulic cylinder 6. The end of the push rod 601 close to the slider 201 is fixedly connected to the slider 201, making it easy for the push rod 601 to drive the slider 201 to slide on the working seat 1.

[0018] When the shaft bending measuring device is actually used, the shaft part 3 to be measured is installed in the base 2, and then the electric cylinder 301 in the base 2 starts to work to drive the slide 302 to start working, driving the clamping plate 303 on the end of the slide 302 to move toward the position of the shaft part 3 until it abuts against the shaft part 3, so that the shaft part 3 is limited in the base 2, and the spherical probe 501 at the end of the dial indicator measuring instrument 5 is adjusted to abut against the shaft part 3, and then the screw 603 is tightened. First, the screw 603 and the limit block 602 are connected into a whole, and the screw 603 is moved toward the bracket 4. Twist until the limit block 602 abuts against the outer wall of the dial indicator measuring instrument 5, so that the dial indicator measuring instrument 5 is installed and limited in the bracket 4. At this time, the hydraulic cylinder 6 on the left retracts the push rod 601 while the hydraulic cylinder 6 on the right pushes out the push rod 601, driving the slider 201 fixedly connected to the push rods 601 on both sides to move to the left. The staff directly observes the changes in the pointer on the dial indicator measuring instrument 5. Once the pointer changes in value, it proves that the curvature of the measured shaft part 3 is unqualified. Then, the left hydraulic rod pushes out the push rod 601 while the right hydraulic cylinder 6 retracts The push rod 601 drives the slider 201 to move to the right until the curvature of the right side of the measured part is measured. The workbench 1 is provided with a base 2 structure that can slide left and right. The electric cylinder 301 drives the slide rod 302 to drive the clamping plate 303 to limit the shaft part 3 in the base 2. A dial indicator 5 is detachably installed above the shaft part 3. The position of the dial indicator 5 on the bracket 4 relative to the shaft part 3 is adjusted according to the size of the shaft part 3 to be measured. When the actual measurement work is carried out, the hydraulic The cylinder 6 drives the push rod 601 to drive the slider 201 at the bottom of the base 2 to slide, completing the test of the axial surface of the shaft part 3. Compared with the conventional testing method in which the staff manually rolls the shaft part 3, the technical solution adopted by the utility model can realize the clamping and limiting of small-sized shaft parts 3, and then the hydraulic cylinders 6 on both sides and related components drive the base 2 equipped with the shaft part 3 to slide left and right, and the dial indicator measuring instrument 5 above the shaft part 3 is used in conjunction with the spherical probe 501 for measurement. The test results can be seen intuitively, the overall structure is compact, and it is easy for the staff to install and maintain.

[0019] like Figure 1-2 As shown, the dial indicator measuring instrument 5 can be slidably arranged in the stand, and a limit block 602 is installed in the stand, and a screw rod 603 is threadedly connected to the stand. The limit block 602 abuts against the outer wall of the dial indicator measuring instrument 5, and the screw rod 603 and the limit block 602 are threadedly connected. The shape of the inner wall of the limit block 602 matches the outer shape of the dial indicator measuring instrument 5, so that the dial indicator measuring instrument 5 is limited and fixed in the bracket 4;

[0020] The effect achieved by the entire embodiment 1 is that, during use, the spherical probe 501 at the end of the dial indicator measuring instrument 5 is adjusted to abut against the shaft part 3, and then the screw 603 is tightened. First, the screw 603 is connected to the limit block 602 to form a whole, and the screw 603 is twisted toward the bracket 4 until the limit block 602 abuts against the outer wall of the dial indicator measuring instrument 5, so that the dial indicator measuring instrument 5 is installed and limited in the bracket 4.

[0021] Working principle: Install the shaft part to be measured in the base, and then the electric cylinder in the base starts working to drive the slide rod to start working, driving the splint on the end of the slide rod to move toward the position of the shaft part until it abuts against the shaft part, so that the shaft part is limited in the base, adjust the spherical probe at the end of the dial indicator measuring instrument to abut against the shaft part, and then operate the screw to tighten. First, the screw and the limit block are connected as a whole, and the screw is twisted in the direction of the bracket until the limit block abuts against the outer wall of the dial indicator measuring instrument, so that the dial indicator measuring instrument is installed and limited in the bracket. At this time, the hydraulic cylinder on the left retracts the push rod while the hydraulic cylinder on the right pushes out the push rod, driving the slider fixed on the push rods on both sides to move to the left. The staff directly observes the changes in the pointer on the dial indicator measuring instrument. Once the pointer changes in value, it proves that the curvature of the measured shaft part is unqualified. Then the hydraulic rod on the left pushes out the push rod while the hydraulic cylinder on the right retracts the push rod to drive the slider to move to the right until the measurement of the curvature of the right shaft surface of the measured part is completed.

Claims

1. A shaft curvature measuring device, comprising a working seat (1), wherein support blocks (101) are evenly distributed on the bottom of the working seat (1), characterized in that: A base (2) is slidably provided on the work seat (1), a shaft part (3) is installed in the base (2), the left end of the shaft part (3) is in contact with the inner wall of the base (2), an electric cylinder (301) is fixedly connected to the base (2), the electric cylinder (301) is located on the right side of the shaft part (3), a sliding rod (302) is slidably connected to the electric cylinder (301), the left end of the sliding rod (302) is fixedly connected to a clamping plate (303), the clamping plate (303) is in contact with the shaft part (3), a bracket (4) is installed on one side of the base (2) on the work seat (1), a dial indicator (5) is detachably connected to the bracket (4), and a spherical probe (501) is provided at the end of the dial indicator (5).

2. The shaft curvature measuring device according to claim 1, characterized in that: Slide blocks (201) are symmetrically mounted on the bottom of the base (2), a convex ball (202) is fixedly connected to the bottom of the slide blocks (201), and hydraulic cylinders (6) are mounted on both sides of the slide blocks (201).

3. The shaft curvature measuring device according to claim 2, characterized in that: The hydraulic cylinder (6) is symmetrically mounted on the working seat (1), a push rod (601) is slidably connected to the hydraulic cylinder (6), and one end of the push rod (601) close to the slider (201) is fixedly connected to the slider (201).

4. The shaft curvature measuring device according to claim 1, wherein: The dial indicator measuring instrument (5) is slidably arranged in a stand, a limit block (602) is installed in the stand, a screw rod (603) is threadedly connected in the stand, and the limit block (602) abuts against the outer wall of the dial indicator measuring instrument (5).

5. The shaft curvature measuring device according to claim 4, characterized in that: The screw rod (603) and the limit block (602) are threadedly connected, and the shape of the inner wall of the limit block (602) matches the outer shape of the dial indicator measuring instrument (5).

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