CN215413566U

CN215413566U - Measuring tool for coaxiality inspection with high precision

Info

Publication number: CN215413566U
Application number: CN202121791593.XU
Authority: CN
Inventors: 伊文海; 张公伟; 闫江; 马永勃
Original assignee: Xi'an Yonghe Electromechanical Manufacturing Co ltd
Current assignee: Xi'an Yonghe Electromechanical Manufacturing Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-01-04
Anticipated expiration: 2031-08-03

Abstract

The utility model relates to the field of measuring tools, in particular to a measuring tool with high accuracy for coaxiality inspection, which comprises a workbench and support columns welded at four corners of the outer wall of the bottom of the workbench, wherein the outer wall of the top of the workbench is provided with two adjusting structures, a fixing structure is fixed on the outer wall of the workbench between the two adjusting structures, a measuring structure is fixed on the outer wall of the top of one side, far away from the two adjusting structures, of the workbench, and the adjusting structures comprise adjusting grooves formed in the outer wall of the top of the workbench, two-way screw rods rotatably connected in the adjusting grooves and placing blocks connected to two ends of the two-way screw rods in a threaded mode. The parts are rotated, the pointer on the dial indicator is observed, and if the pointer is greatly changed in the rotating process, the reference axis of the parts is not in the center; compare in traditional mode, be favorable to detecting not unidimensional part, be favorable to improving the part centre gripping compactness, be convenient for rotate the part, be favorable to improving and detect the accuracy.

Description

Measuring tool for coaxiality inspection with high precision

Technical Field

The utility model relates to the technical field of measuring tools, in particular to a measuring tool with high accuracy for coaxiality inspection.

Background

The coaxiality is a positioning tolerance, and the theoretical correct position is a reference axis. Because different points of the measured axis to the reference axis may appear in all directions of the space, the tolerance zone is a cylinder taking the reference axis as the axis, the tolerance value is the diameter of the cylinder, and the symbol phi is added before the tolerance value; the dial indicator works on the principle that the small linear movement of the measuring rod caused by the measured dimension is amplified through gear transmission and changed into the rotation of a pointer on a dial, so that the measured dimension is read. The dial indicator is a measuring instrument which changes the linear displacement of a measuring rod into the angular displacement of a pointer by utilizing the transmission of a rack gear or a lever gear; the conventional gauge for detecting coaxiality has poor precision.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a measuring tool for coaxiality inspection with high accuracy.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a measuring tool is used in high axiality inspection of precision, includes workstation and the support column of welding in workstation bottom outer wall four corners, the top outer wall of workstation is equipped with two regulation structures, and is located two workstation outer wall that adjust between the structure and is fixed with fixed knot and constructs, one side top outer wall that two regulation structures were kept away from to the workstation is fixed with measurement structure adjust the structure including seting up at the adjustment tank of workstation top outer wall, rotate the two-way screw rod of connection in the adjustment tank and the piece of placing at two-way screw rod both ends.

Preferably, the fixed structure comprises a square frame welded on the outer wall of the top of the workbench, a round hole formed in the center of the outer wall of the top of the square frame, a cylinder welded in the round hole, a first screw rod in threaded connection with the round hole, and a clamping block rotatably connected to the outer wall of the bottom of the first screw rod.

Preferably, the measuring structure comprises a stand column welded on two sides of the outer wall of one end of the top of the workbench, a through hole formed in one side of the outer wall of the top of the stand column, a second screw connected in the through hole in a rotating mode, a lifting plate in threaded connection with the outer wall of the second screw, a detection hole formed in the center of the lifting plate and a dial indicator installed on the outer wall of the top of the lifting plate and located at the detection hole.

Preferably, workstation one side outer wall is located the one end department of two-way screw rod and workstation are located second screw rod bottom outer wall department and all set up the synchronization hole with two-way screw rod and second screw rod looks adaptation, and the extension rod has all been welded to the both ends of two-way screw rod and the bottom of second screw rod, and the one end of extension rod extends to the workstation outer wall, and synchronous belt pulley has all been welded to the one end of extension rod, all overlap in the synchronous belt pulley of two-way screw rod one end and the synchronous belt pulley of second screw rod bottom in two regulation structures and be equipped with synchronous belt.

Preferably, the crank is welded at one end of a bidirectional screw rod in one of the two adjusting structures, at the top of the first screw rod and at the top of the second screw rod.

Preferably, the outer wall of one side of the top, which is close to the placing block, is provided with a first rolling groove, the outer wall of the bottom of the clamping block is provided with a second rolling groove, and the first rolling groove and the second rolling groove are internally and rotatably connected with rollers which are distributed equidistantly.

The utility model has the beneficial effects that:

1. when the device is used, the workbench is placed on a plane, the crank at one end of the two-way screw rod in the adjusting structure is rotated according to a cylindrical part to be measured, one end of the two-way screw rod is connected with the two-way screw rod in the other adjusting structure through the synchronous belt and the synchronous belt pulley, so that the two adjusting structures synchronously drive the placing blocks to be close to or far away from each other, corresponding adjustment can be conveniently carried out according to parts with different sizes, and errors during adjustment of the two adjusting structures are reduced by the synchronous belt and the synchronous belt pulley;

2. a part is placed on the placing block, the first screw rod is rotated through the crank, the first screw rod rotates to drive the clamping block to descend, the bottom of the clamping block is made to contact with the surface of the part, and the rollers in the placing block and the clamping block are in contact with the surface of the part, so that the part is conveniently fixed, and the measuring accuracy is improved;

3. rotating second screw rods in one upright post, connecting the two second screw rods with a synchronous belt pulley through a synchronous belt, synchronously driving a lifting plate to ascend or descend, enabling a measuring head at the bottom of the dial indicator to be in contact with the surface of the part, rotating the part, observing a pointer on the dial indicator, and enabling a reference shaft of the part not to be in the center if the pointer is greatly changed in the rotating process; compare in traditional mode, be favorable to detecting not unidimensional part, be favorable to improving the part centre gripping compactness, be convenient for rotate the part, be favorable to improving and detect the accuracy.

Drawings

Fig. 1 is a schematic front view of a high-precision measuring tool for coaxiality inspection according to the present invention;

fig. 2 is a schematic bottom structure diagram of a high-precision coaxiality inspection measuring tool according to the present invention;

FIG. 3 is a schematic diagram of a structure of a placement block of a high-precision tool for coaxiality inspection according to the present invention;

fig. 4 is a schematic structural diagram of a clamping block of a high-precision measuring tool for coaxiality inspection according to the present invention.

In the figure: the device comprises a workbench 1, an adjusting structure 2, a fixing structure 3, a measuring structure 4, an adjusting groove 5, a bidirectional screw 6, a placing block 7, a first rolling groove 8, a roller 9, a square frame 10, a cylinder 11, a first screw 12, a clamping block 13, a second rolling groove 14, an upright post 15, a second screw 16, a lifting plate 17, a dial indicator 18, a synchronous belt pulley 19 and a supporting column 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a measuring tool for high-precision coaxiality inspection comprises a workbench 1 and support columns 20 welded at four corners of the outer wall of the bottom of the workbench 1, wherein two adjusting structures 2 are arranged on the outer wall of the top of the workbench 1, a fixing structure 3 is fixed on the outer wall of the workbench 1 between the two adjusting structures 2, the measuring structure 4 is fixed on the outer wall of the top of one side, far away from the two adjusting structures 2, of the workbench 1, and each adjusting structure 2 comprises an adjusting groove 5 arranged on the outer wall of the top of the workbench 1, a bidirectional screw 6 rotatably connected in the adjusting groove 5 and placing blocks 7 in threaded connection with two ends of the bidirectional screw 6;

the fixed structure 3 comprises a frame 10 welded on the outer wall of the top of the workbench 1, a round hole formed in the center of the outer wall of the top of the frame 10, a cylinder 11 welded in the round hole, a first screw 12 in threaded connection with the round hole and a clamping block 13 rotatably connected to the outer wall of the bottom of the first screw 12;

the measuring structure 4 comprises an upright post 15 welded on two sides of the outer wall of one end of the top of the workbench 1, a through hole arranged on one side of the outer wall of the top of the upright post 15, a second screw 16 rotatably connected in the through hole, a lifting plate 17 in threaded connection with the outer wall of the second screw 16, a detection hole arranged at the center of the lifting plate 17 and a dial indicator 18 arranged on the outer wall of the top of the lifting plate 17 and positioned at the detection hole;

synchronous holes matched with the two-way screw 6 and the second screw 16 are formed in the outer wall of one side of the workbench 1, which is located at one end of the two-way screw 6, and the outer wall of the bottom of the second screw 16 of the workbench 1, the extension rods are welded at two ends of the two-way screw 6 and at the bottom of the second screw 16, one end of each extension rod extends to the outer wall of the workbench 1, synchronous belt pulleys 19 are respectively welded at one end of each extension rod, and synchronous belt pulleys 19 at one end of the two-

way screw

6 and 19 at the bottom of the second screw 16 in the two adjusting structures 2 are respectively sleeved with a synchronous belt;

the crank is respectively welded at one end of a bidirectional screw 6 in one adjusting structure 2 of the two adjusting structures 2, the top of the first screw 12 and the top of the second screw 16;

the first rolling grooves 8 are respectively formed in the outer wall of one side, close to each other, of the top of the placing block 7, the second rolling grooves 14 are formed in the outer wall of the bottom of the clamping block 13, and the rollers 9 are respectively connected in the first rolling grooves 8 and the second rolling grooves 14 in a rotating mode at equal intervals; compare in traditional mode, be favorable to detecting not unidimensional part, be favorable to improving the part centre gripping compactness, be convenient for rotate the part, be favorable to improving and detect the accuracy.

The working principle is as follows: when the device is used, the workbench 1 is placed on a plane, the crank at one end of the two-way screw 6 in the adjusting structure 2 is rotated according to a cylindrical part to be measured, one end of the two-way screw 6 is connected with the two-way screw 6 in the other adjusting structure 2 through the synchronous belt and the synchronous belt pulley 19, so that the two adjusting structures 2 synchronously drive the placing blocks 7 to be close to or far away from each other, corresponding adjustment can be conveniently carried out according to parts with different sizes, and errors in adjustment of the two adjusting structures 2 are reduced by the synchronous belt and the synchronous belt pulley 19; a part is placed on the placing block 7, the first screw 12 is rotated through the crank, the first screw 12 rotates to drive the clamping block 13 to descend, the bottom of the clamping block 13 is made to contact with the surface of the part, and the roller 9 in the placing block 7 and the clamping block 13 is in contact with the surface of the part, so that the part is conveniently fixed, and the measuring accuracy is improved; the second screw rods 16 in one upright post 15 are rotated, the two second screw rods 16 are connected with the synchronous belt pulley 19 through the synchronous belt, the lifting plate 17 is synchronously driven to ascend or descend, the measuring head at the bottom of the dial indicator 18 is in contact with the surface of a part, the part is rotated, the pointer on the dial indicator 18 is observed, and if the pointer is greatly changed in the rotating process, the reference shaft of the part is not in the center.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a measuring tool is used in high axiality inspection of precision, includes workstation (1) and welding support column (20) in workstation (1) bottom outer wall four corners, its characterized in that, the top outer wall of workstation (1) is equipped with two and adjusts structure (2), and is located workstation (1) outer wall between two regulation structures (2) and is fixed with fixed knot structure (3), one side top outer wall that two regulation structures (2) were kept away from in workstation (1) is fixed with measurement structure (4) adjust structure (2) including set up in adjustment tank (5) of workstation (1) top outer wall, rotate two-way screw rod (6) and threaded connection in two-way screw rod (6) both ends place piece (7) of connecting in adjustment tank (5).

2. The measuring tool for inspecting coaxiality with high accuracy according to claim 1, wherein the fixing structure (3) comprises a frame (10) welded on the outer wall of the top of the workbench (1), a round hole formed in the center of the outer wall of the top of the frame (10), a cylinder (11) welded in the round hole, a first screw (12) in threaded connection with the round hole, and a clamp block (13) rotatably connected to the outer wall of the bottom of the first screw (12).

3. The measuring tool for inspecting coaxiality with high accuracy according to claim 1, wherein the measuring structure (4) comprises an upright post (15) welded on two sides of the outer wall of one end of the top of the workbench (1), a through hole formed in one side, close to each other, of the outer wall of the top of the upright post (15), a second screw (16) rotatably connected in the through hole, a lifting plate (17) in threaded connection with the outer wall of the second screw (16), a detection hole formed in the center of the lifting plate (17), and a dial indicator (18) installed on the outer wall of the top of the lifting plate (17) and located at the detection hole.

4. The measuring tool for detecting the coaxiality with high accuracy according to claim 1, wherein the outer wall of one side of the workbench (1) is located at one end of the bidirectional screw (6) and the outer wall of the bottom of the second screw (16) of the workbench (1) are provided with synchronous holes matched with the bidirectional screw (6) and the second screw (16), the two ends of the bidirectional screw (6) and the bottom of the second screw (16) are respectively welded with an extension rod, one end of the extension rod extends to the outer wall of the workbench (1), one end of the extension rod is respectively welded with a synchronous belt pulley (19), and synchronous belts are respectively sleeved in the synchronous belt pulley (19) at one end of the bidirectional screw (6) and the synchronous belt pulley (19) at the bottom of the second screw (16) in the two adjusting structures (2).

5. The high-precision measuring tool for coaxiality inspection according to claim 1, wherein a crank is welded to one end of the bidirectional screw (6), the top of the first screw (12) and the top of the second screw (16) in one of the two adjusting structures (2).

6. The measuring tool for testing the coaxiality with high accuracy according to claim 1, wherein the outer wall of the top side, close to each other, of the placing block (7) is provided with a first rolling groove (8), the outer wall of the bottom of the clamping block (13) is provided with a second rolling groove (14), and rollers (9) which are distributed equidistantly are rotatably connected in the first rolling groove (8) and the second rolling groove (14).