Precision measuring device for gear coupling

Abstract

The utility model discloses a tooth coupling precision measuring device, and solves the technical problem that the length of a lengthened shaft in the prior art is fixed, so that the lengthened shaft cannot be matched with a measuring assembly to be used for measuring the spatial precision of couplings with different intervals. The gear coupling precision measuring device comprises a fixed seat and a measuring assembly. A telescopic rod is arranged on the working side of the fixed seat, the telescopic end of the telescopic rod can move in the direction close to / away from the fixed seat, and the fixed side of the telescopic rod is arranged on the end face of the first coupler component; the measuring assembly is arranged at the telescopic end of the telescopic rod, and a measuring rod on an instrument in the measuring assembly can make contact with the second coupler component by adjusting the length of the telescopic rod. According to the tooth coupling precision measurement device, the measurement assembly arranged on the telescopic rod can adjust the length of the telescopic rod according to measurement requirements, namely, the distance between the measurement assembly and the fixed seat, so that measurement of spatial precision of various first coupling parts and second coupling parts with different distances can be met.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of measuring equipment, and particularly relates to a precision measuring device for a gear coupling. BACKGROUND

[0002] The coupling is a common torque transmission component in an industrial production line, and the stability of operation and service life thereof depend on the spatial precision (including coaxiality and end face parallelism) of installation.

[0003] For the measurement of the spatial precision of the coupling, the spatial precision of the common coupling can be directly measured by using a common dial gauge and a supporting gauge stand;

[0004] For the coupling with a special structure, such as a gear coupling for connecting two devices with a long distance, as shown in the figure, the two coupling components of the coupling are respectively installed on the rotating shafts of the two devices, and an intermediate shaft is added between the two couplings to realize the transmission of torque; when measuring the spatial precision thereof, a lengthened shaft is needed to support the dial gauge and the supporting gauge stand, so that the dial gauge can contact the coupling components to be measured which are far apart, and the lengthened shaft in the prior art is generally directly welded to one side of the coupling component for fixation, and the dial gauge and the supporting gauge stand are erected on the basis thereof; the length of the lengthened shaft is fixed, and it is generally only applicable to a certain working condition (fixed distance), and it does not have good applicability to couplings with different distances and different sizes. Figure 1 Therefore, it is a technical problem to be solved by those skilled in the art to invent a coupling precision measuring device with strong applicability. SUMMARY

[0005] To solve the above technical problem, the application provides a precision measuring device for a gear coupling to solve the technical problem that the length of the lengthened shaft in the prior art is fixed, which results in that it cannot be matched with the measuring assembly for the measurement of the spatial precision of the coupling with different distances.

[0006] The technical scheme adopted to achieve the object of the application is as follows:

[0007] A precision measuring device for a gear coupling comprises a fixed seat and a measuring assembly.

[0008] The opposite sides of the fixed seat are a fixed side and a working side, respectively, the working side is provided with a telescopic rod, the telescopic end of the telescopic rod can act in the direction of approaching / away from the fixed seat, and the fixed side can be attached to the end face of a first coupling component.

[0009] The measuring assembly is detachably arranged at the telescopic end of the telescopic rod, and the measuring rod on the instrument in the measuring assembly can contact a second coupling component by adjusting the length of the telescopic rod.

[0010] In order to better realize the present application, further optimization is made in the above structure, the fixing seat is a circular disc structure, and the fixing side and the working side are two opposite planes of the fixing seat.

[0011] In order to better realize the present application, further optimization is made in the above structure, two groups of mounting holes are arranged on the fixing seat for the connecting piece to pass through.

[0012] In order to better realize the present application, further optimization is made in the above structure, the mounting hole is a waist-shaped hole, and the length direction of the mounting hole is parallel to the radial direction of the fixing seat.

[0013] In order to better realize the present application, further optimization is made in the above structure, the radius of the fixing seat is greater than the radius of the first shaft part.

[0014] In order to better realize the present application, further optimization is made in the above structure, the telescopic rod comprises a first rod body and a second rod body.

[0015] The first rod body is a circular tubular structure, the fixed end of the first rod body is connected with the fixing seat, the movable end of the first rod body is provided with an opening in communication with the inner cavity of the first rod body, and the axis of the first rod body is perpendicular to the plane where the working side is located.

[0016] The fixed end of the second rod body is inserted into the first rod body through the opening, and the second rod body can move along the axis direction of the first rod body.

[0017] The measuring assembly is detachably arranged on the second rod body.

[0018] In order to better realize the present application, further optimization is made in the above structure, the telescopic rod further comprises a locking bolt.

[0019] The side wall of the first rod body is provided with a threaded hole in communication with the inner cavity of the first rod body, and the locking bolt is detachably arranged at the threaded hole, so that the abutting end of the locking bolt can abut on the side wall of the second rod body to limit the second rod body.

[0020] In order to better realize the present application, further optimization is made in the above structure, the locking bolt is at least two, and the two locking bolts are arranged along the axis direction of the first rod body.

[0021] In order to better realize the present application, further optimization is made in the above structure, the measuring assembly comprises a fixing block, a multi-axis support frame and the instrument.

[0022] The instrument is a dial indicator or a dial gauge, and the instrument is arranged at the movable end of the multi-axis support frame.

[0023] The fixed end of the multi-axis support frame is disposed on the fixed block;

[0024] The measuring component is detachably mounted on the telescopic end of the telescopic rod via the fixing block.

[0025] To better realize this application, the above structure is further optimized by making the cross-sectional shape of the fixing surface of the fixing block "V" shaped.

[0026] As can be seen from the above technical solution, the fixed seat of the gear coupling accuracy measuring device provided in this application is equipped with a telescopic rod whose length can be adjusted at will. The measuring component is placed on the telescopic end of the telescopic rod, so that the measuring component can adjust the length of the telescopic rod according to the measurement requirements, that is, the distance between the measuring component and the fixed seat, so that the measuring rod on the instrument in the measuring component can contact the second coupling component, thereby satisfying the measurement of the spatial accuracy of the first coupling component and the second coupling component with different spacing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the gear coupling mentioned in the background section;

[0028] Figure 2 This is a schematic diagram of the structure of a gear coupling accuracy measuring device according to this application;

[0029] Figure 3 This is a schematic diagram of the fixed base in a gear coupling accuracy measuring device according to this application;

[0030] Figure 4 This is a schematic diagram of the telescopic rod in a gear coupling accuracy measuring device according to this application;

[0031] Figure 5 This is a schematic diagram of the measuring component in a gear coupling accuracy measuring device according to this application;

[0032] Figure 6 This is a side view of the fixed block and the telescopic rod in the gear coupling accuracy measuring device of this application when they are connected.

[0033] Figure 7 A state diagram illustrating the measurement of the coaxiality of a second coupling component using a gear coupling accuracy measuring device according to this application;

[0034] Figure 8 This is a state diagram illustrating the measurement of the end face parallelism of a second coupling component using a gear coupling precision measuring device according to this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Fixing base, 11-Mounting holes;

[0037] 2-Telescopic rod, 21-First rod body, 22-Second rod body, 23-Locking bolt;

[0038] 3-Measuring component, 31-Fixing block, 32-Multi-axis support frame, 33-Instrument;

[0039] 41-First coupling component; 42-Second coupling component; 43-Intermediate shaft. Detailed Implementation

[0040] To enable those skilled in the art to better understand this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] The gear coupling mentioned in the background art for connecting two devices with a long distance includes a first coupling component 41, a second coupling component 42, and an intermediate shaft 43, such as Figure 1 As shown; where,

[0042] The first coupling component 41 and the second coupling component 42 are respectively sleeved on the rotating shafts of the two devices, and the first coupling component 41 and the second coupling component 42 are connected by an intermediate shaft 43.

[0043] When measuring the spatial accuracy of the first coupling component 41 and the second coupling component 42, an extended shaft (fixed length) is needed to mount the dial indicator and its holder (see reference). Figure 7 and Figure 8 The length of the extended shaft is fixed and can only be used for measuring the spatial accuracy of the first coupling component 41 and the second coupling component 42 under one working condition. It cannot be used for different spacings and a new extended shaft needs to be prepared and re-welded.

[0044] To address the aforementioned problems, this application provides a gear coupling accuracy measuring device capable of measuring the spatial accuracy of a first coupling component 41 and a second coupling component 42 with different spacings, such as... Figures 1 to 8 As shown, it includes a mounting base 1 and a measuring component 3; wherein,

[0045] The fixed seat 1 has a fixed side and a working side on opposite sides. The working side is provided with a telescopic rod 2. The telescopic direction of the telescopic rod 2 is perpendicular to the working side. That is, the telescopic end of the telescopic rod 2 can move towards / away from the fixed seat 1. The fixed seat 1 is detachably provided on the end face of the first coupling component 41. When the fixed seat 1 is installed on the first coupling component 41, the fixed side of the fixed seat 1 is attached to the end face of the first coupling component 41.

[0046] The measuring component 3 is detachably mounted on the telescopic end of the telescopic rod 2.

[0047] When it is necessary to measure the spatial accuracy of the first coupling component 41 and the second coupling component 42, the operator needs to install the first coupling component 41 and the second coupling component 42 at the close ends of the drive shafts of the two devices respectively.

[0048] Then, the fixing seat 1 is installed at the end of the first coupling component 41, so that the fixed side is in contact with the first coupling component 41. The measuring assembly 3 is fixed to the telescopic end of the telescopic rod 2, and the length of the telescopic rod 2 is adjusted, that is, the distance between the telescopic end of the telescopic rod 2 and the fixing seat 1 is adjusted, so that the end of the measuring rod of the instrument 33 in the measuring assembly 3 can abut against the circumferential sidewall of the second coupling (for coaxiality measurement, such as...). Figure 7 (As shown) or the end face of the second coupling (end face parallelism measurement, such as...) Figure 8 (as shown);

[0049] Zero the instrument 33;

[0050] The first coupling component 41 and the second coupling component 42 rotate. Of course, the gear coupling accuracy measuring device also rotates with the first coupling component 41, and observes and records the jump of the pointer on the instrument 33 to complete the measurement of the coupling spatial accuracy.

[0051] The length of the telescopic rod 2 in the gear coupling precision measuring device can be adjusted at will, so that the gear coupling precision measuring device can be applied to the measurement of the spatial accuracy of the first coupling component 41 and the second coupling component 42 with different spacing, thereby making the application range of the gear coupling precision measuring device wider.

[0052] It should be noted that the instrument 33 mentioned above is either a dial indicator or a micrometer. The choice between a dial indicator and a micrometer is mainly determined by the measurement accuracy. The measurement accuracy of a micrometer is greater than that of a dial indicator. If the equipment requires higher accuracy, a micrometer can be selected as the measuring instrument 33.

[0053] In some embodiments, the measuring component 3 described above includes a fixing block 31, a multi-axis support frame 32, and an instrument 33. See also... Figure 5 ;in,

[0054] The fixing block 31 is a rectangular block structure. In this embodiment, the fixing block 31 is made of magnetic material, which can be adsorbed on the side wall of the first coupling component 41 to realize the installation and fixing of the measuring component 3.

[0055] The fixed end of the multi-axis support frame 32 is set on the fixed block 31, and the instrument 33 is set on the movable end of the multi-axis support frame 32. The multi-axis support frame 32 is provided with multiple hinge points, so that the position of the movable end of the multi-axis support frame 32 can be adjusted at will, so that the measuring rod of the instrument 33 installed on the movable end of the multi-axis support frame 32 can contact the circumferential side wall or end face of the second coupling component 42 according to the measurement requirements.

[0056] It should be noted that the structure of the multi-axis support frame 32 is the same as that of the instrument frame used to fix the instrument 33 in the prior art. Its structure and working principle will not be described in detail here. For details, please refer to the structure of the multi-axis robotic arm.

[0057] To better facilitate the fit between the fixing block 31 and the first coupling component 41 of different sizes, the fixing surface of the fixing block 31 is designed with a "V" shaped cross-section. (See [reference]). Figure 5 and Figure 6 ;

[0058] When installing the fixing block 31, the length direction of the fixing block 31 can be adjusted to be parallel to the axis of the first coupling component 41. At the same time, the fixing surface of the fixing block 31 is oriented towards the first coupling component 41 and close to the first coupling component 41, so that both inclined surfaces of the fixing surface are in contact with the outer side wall of the first coupling component 41, thereby realizing the installation and fixing of the fixing block 31.

[0059] For telescopic rods 2 of different diameters, the "V"-shaped fixing surface can be matched with them, making the use of the gear coupling precision measuring device more convenient.

[0060] In some embodiments, the aforementioned fixing base 1 is a circular disc-shaped structure, see [reference]. Figure 3 The fixed side and the working side are two opposing planes of the fixed seat 1. Preferably, the radius of the fixed seat 1 is larger than the radius of the first coupling component 41, so that the edge of the fixed seat 1 can protrude from the circumferential sidewall of the first coupling component 41, forming a structure similar to a handwheel. See [reference needed]. Figure 7 and Figure 8 When it is necessary to rotate the first coupling component 41, the operator can use his palm to rotate the circumferential side wall of the fixed seat 1 to make the rotation of the first coupling component 41 more convenient.

[0061] In some embodiments, the aforementioned fixed base 1 is provided with two sets of mounting holes 11 for easy passage of connecting parts. In this embodiment, the connecting parts are bolts. After the bolts pass through the mounting holes 11, they can pass through the screw holes on the first coupling component 41 and be locked with the nut, thereby fixing the fixed base 1 to the first coupling component 41. This prevents the fixed base 1 from falling off the first coupling component 41 or its relative position to the first coupling component 41 from changing during the measurement process, which would affect the measurement accuracy.

[0062] In some embodiments, the mounting hole 11 is an oblong hole, and the length direction of the mounting hole 11 is parallel to the radial direction of the fixing seat 1, so that the fixing seat 1 can be adapted to various first coupling components 41 with different radial dimensions, thereby enabling the gear coupling accuracy measuring device to be used for measuring the spatial accuracy of couplings with different pitches and sizes. Preferably, the length directions of the two sets of oblong holes are parallel, see [reference]. Figure 3 .

[0063] In some embodiments, the telescopic rod 2 described above includes a first rod body 21 and a second rod body 22, see [reference needed]. Figure 4 ;in,

[0064] The first rod 21 is a tubular structure with a circular cross-section. The fixed end of the first rod 21 is connected to the fixed seat 1. The movable end of the first rod 21 is provided with a circular opening that communicates with the inner cavity of the first rod 21. The diameter of the opening matches the inner diameter of the first rod 21. The axis of the first rod 21 is perpendicular to the plane where the working side is located.

[0065] The fixed end of the second rod 22 is inserted into the first rod 21 through an opening, and the second rod 22 and the first rod 21 are in clearance fit, so that the second rod 22 can move along the axial direction of the first rod 21 to realize the adjustment of the length of the telescopic rod 2. The measuring component 3 is detachably set on the second rod 22.

[0066] In some embodiments, the telescopic rod 2 further includes a locking bolt 23;

[0067] The side wall of the first rod 21 is provided with a threaded hole communicating with the inner cavity of the first rod 21. A locking bolt 23 is detachably disposed at the threaded hole, allowing the abutting end of the locking bolt 23 to abut against the side wall of the second rod 22, thereby limiting the position of the second rod 22 and preventing a decrease in measurement accuracy due to changes in the positions of the first rod 21 and the second rod 22 during measurement. This ensures the measurement accuracy of the gear coupling accuracy measuring device. Preferably, there are at least two locking bolts 23, arranged along the axial direction of the first rod 21, to better fix and limit the second rod 22.

[0068] Through the above embodiments, this application has the following beneficial effects or advantages:

[0069] 1) The fixed base 1 of the gear coupling accuracy measuring device is equipped with a telescopic rod 2 whose length can be adjusted at will. The measuring component 3 is placed on the telescopic end of the telescopic rod 2, so that the measuring component 3 can adjust the length of the telescopic rod 2 according to the measurement requirements, that is, the distance between the measuring component 3 and the fixed base 1, so that the measuring rod on the instrument 33 in the measuring component 3 can contact the second coupling component 42, thereby satisfying the measurement of the spatial accuracy of the first coupling component 41 and the second coupling component 42 with different spacings.

[0070] 2) The fixed base 1 of the gear coupling precision measuring device is provided with two sets of mounting holes 11, so that the fixed base 1 can be adapted to a variety of first coupling components 41 with different radial dimensions, thereby enabling the gear coupling precision measuring device to be used for measuring the spatial accuracy of couplings with different spacing and different sizes.

[0071] 3) The fixed block 31 of the gear coupling precision measuring device is provided with a "V"-shaped fixing surface, which can be matched with telescopic rods 2 of different diameters, so as to make the use of the gear coupling precision measuring device more convenient.

[0072] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0073] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A device for measuring the accuracy of gear couplings, characterized in that, Includes a mounting base (1) and a measuring assembly (3); The fixed seat (1) has a fixed side and a working side on opposite sides. The working side is provided with a telescopic rod (2). The telescopic end of the telescopic rod (2) can move towards / away from the fixed seat (1). The fixed side can fit against the end face of the first coupling component (41). The measuring component (3) is detachably mounted on the telescopic end of the telescopic rod (2), and the measuring rod on the instrument (33) in the measuring component (3) can contact the second coupling component (42) by adjusting the length of the telescopic rod (2).

2. The gear coupling accuracy measuring device according to claim 1, characterized in that, The fixing seat (1) is a circular disc structure, and the fixing side and the working side are two opposing planes of the fixing seat (1).

3. The gear coupling accuracy measuring device according to claim 2, characterized in that, The mounting base (1) is provided with two sets of mounting holes (11) to facilitate the passage of the connector.

4. The gear coupling accuracy measuring device according to claim 3, characterized in that, The mounting hole (11) is an oblong hole, and the length direction of the mounting hole (11) is parallel to the radial direction of the fixing seat (1).

5. The gear coupling accuracy measuring device according to claim 4, characterized in that, The radius of the fixed seat (1) is greater than the radius of the first coupling component (41).

6. The gear coupling accuracy measuring device according to any one of claims 1 to 5, characterized in that, The telescopic rod (2) includes a first rod body (21) and a second rod body (22); The first rod (21) is a circular tubular structure. The fixed end of the first rod (21) is connected to the fixed seat (1). The movable end of the first rod (21) is provided with an opening that communicates with the inner cavity of the first rod (21). The axis of the first rod (21) is perpendicular to the plane where the working side is located. The fixed end of the second rod (22) is inserted into the first rod (21) through the opening, and the second rod (22) can move along the axial direction of the first rod (21); The measuring component (3) is detachably mounted on the second rod (22).

7. The gear coupling accuracy measuring device according to claim 6, characterized in that, The telescopic rod (2) also includes a locking bolt (23); The first rod (21) has a threaded hole on its side wall that communicates with the inner cavity of the first rod (21). The locking bolt (23) is detachably disposed at the threaded hole, so that the abutting end of the locking bolt (23) can abut against the side wall of the second rod (22) to limit the second rod (22).

8. The gear coupling accuracy measuring device according to claim 7, characterized in that, There are at least two locking bolts (23), and the two locking bolts (23) are arranged along the axial direction of the first rod (21).

9. The gear coupling accuracy measuring device according to any one of claims 1 to 5, characterized in that, The measuring component (3) includes a fixed block (31), a multi-axis support frame (32), and the instrument (33); The instrument (33) is a dial indicator or a micrometer, and the instrument (33) is located at the movable end of the multi-axis support frame (32); The fixed end of the multi-axis support frame (32) is disposed on the fixed block (31); The measuring component (3) is detachably mounted on the telescopic end of the telescopic rod (2) via the fixing block (31).

10. The gear coupling accuracy measuring device according to claim 9, characterized in that, The cross-sectional shape of the fixing surface of the fixing block (31) is "V".

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