Aligning and leveling workbench of roundness measuring instrument

Abstract

The utility model discloses an aligning and leveling workbench of a roundness measuring instrument, and relates to the technical field of measurement and detection. Comprising an upper fine-tuning disc, a middle fine-tuning disc and a lower fine-tuning disc, the middle fine-tuning disc is arranged at the bottom of the upper fine-tuning disc, an angle piece is movably arranged at the bottom of the middle fine-tuning disc, precise feeding devices are movably arranged on the periphery of the angle piece, and hand wheels are fixedly connected to the ends, away from the angle piece, of the precise feeding devices; a movable ring is arranged on the fine adjustment lower disc, a movable ring positioning piece is installed on the movable ring, and a fine adjustment middle disc lower fixing steel ball support is arranged on one side of the movable ring positioning piece; according to the aligning and leveling workbench of the roundness instrument, the hand wheel is rotated to drive the lead screw to move, one end of the lead screw is in contact with the angle piece to achieve eccentric adjustment, the problems that an existing aligning and leveling workbench is large in resistance, low in adjustment precision and low in stability during aligning and leveling are solved, and the aligning and leveling efficiency and the stability during measurement are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measurement and detection, specifically to a roundness tester centering and leveling workbench. BACKGROUND

[0002] The roundness tester is a kind of measurement tool for measuring the roundness error of workpiece by rotary shaft method, and is divided into sensor rotary type and workbench rotary type, when measuring, the measured piece is concentrically installed with precision shaft system, and the precision shaft system carries inductive length sensor or workbench to make accurate circular motion.In high-precision machining industry, the accuracy requirements of precision parts such as holes and shafts are all in nanometer level, and the accuracy directly affects the quality and reliability of high-precision precision parts, and high-precision roundness tester is needed for calibration and measurement to produce these high-precision precision parts, therefore, the precision of roundness tester directly affects the detection of precision parts.

[0003] The centering and leveling workbench is a key component of the roundness tester, which is connected with the air floating rotary main shaft to adjust the eccentricity and level of the measured workpiece, and these adjustments are very small, and the precision and accuracy of the centering and leveling workbench directly affect the measurement precision of the roundness tester.

[0004] The existing manual centering and leveling workbench has complex structure and large weight, and the feeding precision is low, the resistance is large during centering and leveling, which greatly affects the precision of the roundness tester during measurement.

[0005] The purpose of the present application is to provide a centering and leveling device with simpler structure, smaller adjustment resistance and high feeding precision to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model provides a kind of roundness tester centering and leveling workbench to solve the problem in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of roundness tester centering and leveling workbench, including fine adjustment upper disc, fine adjustment middle disc and fine adjustment lower disc, the bottom of fine adjustment upper disc is provided with fine adjustment middle disc, the bottom of fine adjustment middle disc is movably provided with angle piece, the periphery of angle piece is movably provided with precision feeding device, the end of precision feeding device away from angle piece is fixedly connected with hand wheel, the bottom of precision feeding device is provided with fine adjustment lower disc, fine adjustment lower disc is provided with movable ring, movable ring is installed with movable ring positioning piece, one side of movable ring positioning piece is provided with fine adjustment middle disc lower fixed steel ball support, the bottom of fine adjustment middle disc lower fixed steel ball support is provided with fine adjustment lower disc.

[0008] Further, the shape of the fine adjustment upper disc is circular, the lower part is convex hemispherical, and a center shaft is arranged in the middle of the flat circular shape.

[0009] Further, the bottom of the fine adjustment upper disc is fixedly connected with a fine adjustment upper disc positioning pin, and the positioning pin is arranged in a positioning hole arranged in the fine adjustment middle disc.

[0010] Further, the bottom of the fine adjustment middle disc is provided with a tension spring pin, which is in the shape of a cylinder and is fixed to the lower part of the fine adjustment middle disc.

[0011] Further, the precision feeding device comprises a lead screw, one end of the lead screw is fixedly connected with a hand wheel, and at least two precision feeding devices are uniformly distributed below the fine adjustment middle disc and are fixed to the fine adjustment lower disc.

[0012] Further, the movable ring positioning member is provided with a pin in the center, which is arranged in a positioning hole arranged in the movable ring and is used for positioning the movable ring.

[0013] Further, the shape of the fine adjustment lower disc is circular, and the lower part of the fine adjustment lower disc is uniformly provided with three positioning pins.

[0014] Further, the circular hole is provided with a compression spring, and the compression spring is located below the center shaft.

[0015] Further, the bottom of the fine adjustment middle disc is provided with a translation member, and the shape of the translation member is square.

[0016] Further, the fine adjustment middle disc is threadedly connected with a handle around the periphery, and the shape of the handle is cylindrical.

[0017] Compared with the prior art, the roundness instrument centering and leveling workbench has the following beneficial effects:

[0018] The roundness instrument centering and leveling workbench drives the lead screw to move by rotating the hand wheel, and the eccentricity is adjusted by using the contact angle piece at one end of the lead screw, so that the problems of large resistance, low adjustment accuracy and low stability during centering and leveling of the existing centering and leveling workbench are solved, and the efficiency of centering and leveling and the stability during measurement are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a structural front view of the utility model;

[0021] Figure 3 It is an exploded view of the structure of the utility model;

[0022] Figure 4 Structure exploded view of the present application;

[0023] Figure 5 Structure schematic diagram of the movable ring of the present application;

[0024] Figure 6 Structure schematic diagram of the precision feeding device of the present application;

[0025] Figure 7 Structure side view of the present application;

[0026] Figure 8 Structure schematic diagram of the present application Figure 7 Structure schematic diagram of the present application

[0027] In the figure: 1, fine adjustment upper disc; 2, fine adjustment upper disc positioning column pin; 3, fine adjustment middle disc; 4, fine adjustment middle disc lower fixed steel ball support; 5, fine adjustment lower disc; 6, positioning pin column; 7, precision feeding device; 71, screw rod; 8, hand wheel; 9, tension spring pin column; 10, movable ring positioning piece; 11, handle; 12, movable ring; 13, translation piece; 14, angle piece; 15, compression spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0029] Please refer to Figures 1-8The utility model discloses a roundness instrument centering and leveling workstation, including fine adjustment upper disc 1, fine adjustment middle disc 3 and fine adjustment lower disc 5, the bottom of fine adjustment upper disc 1 is provided with fine adjustment middle disc 3, the bottom swing of fine adjustment middle disc 3 is provided with angle piece 14, the four around swing of angle piece 14 is provided with precision feed device 7, the one end of precision feed device 7 away from angle piece 14 is fixedly connected with hand wheel 8, the bottom of precision feed device 7 is provided with fine adjustment lower disc 5, be provided with movable ring 12 on fine adjustment lower disc 5, movable ring positioning piece 10 is installed on movable ring 12, one side of movable ring positioning piece 10 is provided with fine adjustment middle disc lower fixed steel ball support 4, the bottom of fine adjustment middle disc lower fixed steel ball support 4 is provided with fine adjustment lower disc 5, the bottom of fine adjustment lower disc 5 is provided with positioning pin column 6, move by rotating hand wheel 8 drive screw rod 71, utilize the eccentricity of one end contact angle piece 14 of screw rod 71 to realize the adjustment, has solved the problem that the centering and leveling of the existing centering and leveling workstation is larger, the regulation accuracy is partial, and the stability is also not high, has improved the efficiency of centering and leveling and the stability when measuring.

[0030] Specifically, the shape of the fine adjustment upper disc 1 is circular, the lower part is convex hemispherical, and a central shaft 101 is arranged in the middle of the flat circular shape. The shape of the fine adjustment middle disc 3 is circular, the upper part is concave hemispherical, and a circular hole 31 is arranged in the middle for the central shaft 101 to pass through. The positioning and installation between the fine adjustment upper disc 1 and the fine adjustment middle disc 3 are realized by the insertion of the central shaft 101 and the circular hole 31. The flat circular shape is uniformly distributed with positioning steel ball groove holes around for auxiliary support of the fine adjustment upper disc 1 and the fine adjustment middle disc 3.

[0031] Specifically, the bottom of the fine adjustment upper disc 1 is fixedly connected with a fine adjustment upper disc positioning pin 2, which is placed in the positioning hole arranged in the fine adjustment middle disc 3. The fine adjustment upper disc positioning pin 2 is inserted into the positioning hole for positioning between the fine adjustment upper disc 1 and the fine adjustment middle disc 3.

[0032] Specifically, the bottom of the fine adjustment middle disc 3 is provided with a tension spring pin 9, which is in the shape of a cylinder and fixed below the fine adjustment middle disc 3.

[0033] Specifically, the precision feed device 7 includes a screw rod 71, one end of which is fixedly connected with a hand wheel 8. At least two precision feed devices 7 are uniformly distributed below the fine adjustment middle disc 3 and fixed on the fine adjustment lower disc 5. The hand wheel 8 is in the shape of a circle and fixed on the screw rod 71 in the precision feed device 7, which is used to drive the movement of the screw rod 71. When adjusting, the screw rod 71 is moved by rotating the hand wheel 8, and the eccentricity is adjusted by the end of the screw rod 71 contacting the angle piece 14.

[0034] Specifically, the movable ring positioning piece 10 has a pin in the center, which is installed in the positioning hole arranged in the movable ring 12 for positioning of the movable ring 12.

[0035] Specifically, the micro-adjustment lower disc 5 is circular in shape, and three positioning pin columns 6 are uniformly arranged below the micro-adjustment lower disc 5. The positioning pin columns 6 are cylindrical in shape, fixed in the threaded holes below the micro-adjustment lower disc 5, and used to connect the air floating main shaft and the adapter plate not shown in the figure.

[0036] Specifically, a compression spring 15 is arranged in the circular hole 31, and the compression spring 15 is below the central shaft 101 and placed between the micro-adjustment upper disc 1 and the micro-adjustment middle disc 3 for pre-tightening and connection.

[0037] Specifically, the bottom of the micro-adjustment middle disc 3 is provided with a translation piece 13, and the translation piece 13 is square in shape. The translation piece 13 is fixed below the micro-adjustment middle disc 3 and used to adjust the centering and leveling workbench of the roundness tester.

[0038] Specifically, the angle piece 14 is irregular in shape and has a positioning groove in the middle for placing the center pre-tightening compression spring 15 of the micro-adjustment upper disc 1.

[0039] The micro-adjustment middle disc is fixed below the micro-adjustment middle disc 3 and used to support the micro-adjustment middle disc 3 and the micro-adjustment lower disc 5.

[0040] The movable ring 12 is circular in shape and has a positioning groove on one side and is placed below the micro-adjustment middle disc 3.

[0041] Specifically, the handle 11 is threadedly connected around the micro-adjustment middle disc 3, and the handle 11 is cylindrical in shape and fixed in the threaded holes around the micro-adjustment middle disc 3 and used to manually rotate the centering and leveling workbench of the roundness tester.

[0042] In use, when adjusting, the handle 8 is rotated to drive the lead screw 71 to move, the lead screw 71 contacts the angle piece 14 at one end, the angle piece 14 is eccentrically moved to make the micro-adjustment middle disc 3 at the top of the angle piece 14 eccentrically move, and then the micro-adjustment upper disc 1 at the top of the micro-adjustment middle disc 3 eccentrically move, so that the eccentric adjustment is realized, the problems of large resistance, low adjustment accuracy and low stability during centering and leveling of the existing centering and leveling workbench are solved, and the efficiency of centering and leveling and the stability during measurement are improved.

[0043] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A roundness centering and leveling worktable comprising a fine adjustment upper disc (1), a fine adjustment middle disc (3) and a fine adjustment lower disc (5), characterized in that: The bottom of the fine adjustment upper disc (1) is provided with a fine adjustment middle disc (3), the bottom of the fine adjustment middle disc (3) is movably provided with an angle piece (14), the periphery of the angle piece (14) is movably provided with a precise feeding device (7), one end of the precise feeding device (7) away from the angle piece (14) is fixedly connected with a hand wheel (8), the bottom of the precise feeding device (7) is provided with a fine adjustment lower disc (5), the fine adjustment lower disc (5) is provided with a movable ring (12), the movable ring (12) is installed with a movable ring positioning piece (10), one side of the movable ring positioning piece (10) is provided with a fine adjustment middle disc lower fixed steel ball support (4), the bottom of the fine adjustment middle disc lower fixed steel ball support (4) is provided with the fine adjustment lower disc (5).

2. The centering and leveling worktable of a roundness measuring instrument according to claim 1, characterized in that: The fine adjustment upper disc (1) is circular in shape, the lower part is convex hemispherical, and a central shaft (101) is arranged in the middle of the flat circular shape; the fine adjustment middle disc (3) is circular in shape, the upper part is concave hemispherical, and a circular hole (31) is arranged in the middle for the central shaft (101) to pass through.

3. The centering and leveling worktable of claim 1, wherein: The bottom of the fine adjustment upper disc (1) is fixedly connected with a fine adjustment upper disc positioning column pin (2), and the positioning column pin (2) is placed in the positioning hole arranged in the fine adjustment middle disc (3).

4. The centering and leveling worktable of claim 1, wherein: The bottom of the fine adjustment middle disc (3) is provided with a tension spring pin column (9), which is cylindrical in shape and fixed below the fine adjustment middle disc (3).

5. The centering and leveling worktable of claim 1, wherein: The precise feeding device (7) comprises a lead screw (71), one end of the lead screw (71) is fixedly connected with a hand wheel (8), and at least two precise feeding devices (7) are evenly distributed below the fine adjustment middle disc (3) and fixed on the fine adjustment lower disc (5).

6. The centering and leveling table of claim 1, wherein: The movable ring positioning piece (10) has a pin column in the center, which is installed in the positioning hole arranged in the movable ring (12) and used for positioning the movable ring (12).

7. The centering and leveling table of claim 1, wherein: The fine adjustment lower disc (5) is circular in shape, and the lower part of the fine adjustment lower disc (5) is evenly provided with three positioning pin columns (6).

8. The centering and leveling worktable of claim 2, wherein: The circular hole (31) is provided with a compression spring (15), and the compression spring (15) is located below the central shaft (101).

9. The centering and leveling table of claim 1, wherein: The bottom of the fine adjustment middle disc (3) is provided with a translation piece (13), which is square in shape.

10. The centering and leveling table of claim 1, wherein: The periphery of the fine adjustment middle disc (3) is threadedly connected with a handle (11), which is cylindrical in shape.

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