CN210741357U

CN210741357U - Follow-up measuring instrument caliper structure

Info

Publication number: CN210741357U
Application number: CN201922141200.XU
Authority: CN
Inventors: 雷浩; 边同国
Original assignee: Hubei Lianzong Technology Co ltd
Current assignee: Hubei Lianzong Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-06-12
Anticipated expiration: 2029-12-04

Abstract

A servo-meter caliper structure comprises a fixing device, a vertical fixing arm and a top fixing shaft block; a central fixing pipe is fixedly arranged at one end of the fixing device, and a bottom fixing shaft block and a middle fixing shaft block are sequentially arranged on the central fixing pipe; the bottom fixed shaft block is symmetrically provided with bottom connecting arms in a shaft connection way; and the middle fixed shaft block is symmetrically and axially connected with middle connecting arms. The vertical fixed arm that this follow-up volume appearance calliper structure was equipped with is provided with two altogether, and vertical fixed arm all is fixed in on the fixed axle piece of bottom on managing and the middle fixed axle piece of center through bottom linking arm and middle linking arm coupling, and bottom linking arm and vertical fixed arm and bottom fixed axle piece and middle fixed axle piece constitute a pair of slider mechanism jointly, this structural design is favorable to realizing the synchronous displacement of two vertical fixed arms through the synchronous motion of bottom linking arm and middle linking arm, thereby make the device measure the crankshaft structure of different diameters.

Description

Follow-up measuring instrument caliper structure

Technical Field

The utility model relates to a numerical control processing measures technical field, especially relates to a follow-up volume appearance calliper structure.

Background

The crankshaft is an important part in an engine, and the grinding precision of movable connection parts such as journals directly influences the running smoothness, vibration and noise of the reciprocating engine. Because of the particularity of the crankshaft structure, the traditional crankshaft grinding adopts fixed grinding; under the control of a numerical control system, the special machines respectively grind different machining surfaces such as a main journal, a connecting rod journal, a flywheel end surface and a thrust surface of the crankshaft on different special machines in sequence.

With the progress of the grinding technology, the crankshaft can be clamped once and then all the processing surfaces are ground in sequence, however, the parts such as the connecting rod neck and the like are processed by positioning two ends and supporting by a center frame on the main journal in the follow-up grinding processing; because each section of connecting rod neck of the crankshaft makes eccentric rotation motion relative to the main journal, the center position and the direction of the connecting rod neck are continuously changed, and the roundness of the target connecting rod neck cannot be directly measured. Although the existing crankshaft grinding realizes one-time clamping continuous grinding, most of the detection of the contour dimension and the precision of the crankshaft still depends on special crankshaft circle measuring devices, and the crankshaft circle measuring devices are independent of a crankshaft grinding machine and are special detection equipment based on V-shaped reference block circle measuring. Therefore, each measurement requires that the crankshaft be detached from the grinding machine and then mounted on the measuring instrument, and if the measurement result is not qualified, the above process needs to be repeated in reverse. Therefore, the realization of online real-time measurement of the follow-up grinding of the crankshaft is an inevitable requirement for improving the grinding efficiency and the processing quality.

201710231970.6, which is a patent retrieved by the prior art, discloses a crankshaft follow-up grinding online measuring instrument, which comprises a measuring instrument base, wherein a swing arm support is supported on the measuring instrument base in a sliding manner, a measuring swing arm is hinged on the swing arm support, a swing arm oil cylinder is connected between the top end of the oil cylinder support and the measuring swing arm, a central fixed gear is fixedly arranged at the extending end part of the measuring swing arm, a swingable follow-up swing frame is also arranged at the extending end of the measuring swing arm, a planetary swing gear arranged at the output shaft end of the follow-up swing motor is meshed with the central fixed gear, a measuring tool support is fixedly arranged on the measuring tool follow-up swing arm, two measuring clamping blocks and a displacement sensor are arranged on the measuring tool support, the two measuring clamping blocks are respectively positioned on two inclined planes of a V-shaped reference plane, the displacement sensor is positioned on a symmetrical line of the V-shaped reference plane, and the inclined plane α of the V-shaped reference plane is 68-72 degrees.

Based on the above, the structure design of the caliper of the follow-up measuring instrument is simple, the adjustability is poor, and the diameter of a measured object cannot be adjusted at will, so that the caliper cannot be directly contacted with the outer wall of the measured object to measure, and only electronic induction measurement can be carried out, so that the measurement accuracy is poor, and the processing accuracy of the crankshaft cannot be better increased.

Therefore, the structure of the caliper of the follow-up measuring instrument is researched and improved aiming at the existing structure and defects, and the structure of the caliper of the follow-up measuring instrument is provided so as to achieve the purpose of being more practical.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a follow-up volume appearance calliper structure to the structural design who proposes in solving above-mentioned background art is comparatively simple, and the adjustable performance is slightly poor, can not carry out arbitrary regulation according to the diameter of measurement thing, so can not measure with the outer wall direct contact of measurement, can only carry out the electronic induction measurement, thereby lead to measurement accuracy slightly poor, the problem of increase bent axle machining precision that can not be better.

The utility model discloses servo-meter calliper structure's purpose and efficiency are reached by following specific technological means:

a follow-up measuring instrument caliper structure comprises a fixing device, a vertical fixing arm and a top fixing shaft block; a central fixing pipe is fixedly arranged at one end of the fixing device, and a bottom fixing shaft block and a middle fixing shaft block are sequentially arranged on the central fixing pipe; the bottom fixed shaft block is symmetrically provided with bottom connecting arms in a shaft connection way; the middle fixed shaft block is symmetrically provided with middle connecting arms in a shaft connection way; a top connecting arm is arranged at the middle position of the middle connecting arm in a shaft connection manner; the top fixed shaft block is fixedly arranged on the outer side wall of the central measuring instrument; the vertical fixed arm is designed to be of an L-shaped structure, and a side end measuring instrument is fixedly arranged at the corner end of the vertical fixed arm.

Furthermore, the vertical fixing arm is provided with two positions, the vertical fixing arm is fixed on the bottom fixing shaft block and the middle fixing shaft block on the central fixing pipe through the bottom connecting arm and the middle connecting arm in a shaft coupling mode, and the bottom connecting arm, the middle connecting arm, the vertical fixing arm, the bottom fixing shaft block and the middle fixing shaft block jointly form a double-slider mechanism.

Furthermore, the top connecting arm is provided with two positions, the top connecting arm is rotationally fixed on the top fixing shaft block in a shaft coupling mode, and the middle fixing shaft block, the middle connecting arm, the top connecting arm and the top fixing shaft block jointly form a crank sliding mechanism.

Furthermore, the side end measuring instruments are symmetrically arranged at two positions, the side end measuring instruments and the central measuring instrument form a three-point measuring device, and the side end measuring instruments and the central measuring instrument are tangent to the outer wall of the same concentric circle.

Furthermore, a return spring is embedded and installed at the bottom of the inner side of the central fixing tube, the central measuring instrument is embedded and installed on the inner side of the central fixing tube in a sliding mode, and the bottom end of the central measuring instrument is fixedly attached to the return spring.

Compare with current structure under, the utility model discloses following beneficial effect has:

the vertical fixed arms that are equipped with are provided with two altogether, and vertical fixed arm all is fixed in the fixed axle piece in bottom and the middle fixed axle piece on the pipe is fixed to the center through bottom linking arm and middle linking arm coupling, and the bottom linking arm constitutes a pair slider mechanism with middle linking arm and vertical fixed arm and bottom fixed axle piece and middle fixed axle piece jointly, and this structural design is favorable to realizing the synchronous displacement of two vertical fixed arms through the synchronous motion of bottom linking arm and middle linking arm, thereby makes the device measure the bent axle structure of different diameters.

The top linking arm that is equipped with is provided with two altogether, and the top linking arm coupling rotates and is fixed in on the fixed axle piece of top, and a crank sliding mechanism is constituteed jointly to middle fixed axle piece and middle linking arm and top linking arm and fixed axle piece of top, be favorable to driving the fixed axle piece of top removal through the removal of central measuring apparatu, thereby it takes place to rotate to drive the top linking arm, thereby the synchronous displacement of vertical fixed arm is realized to the linking arm in the middle of the drive, this structural design is favorable to realizing the synchronous displacement of central measuring apparatu and vertical fixed arm.

The side end measuring instruments are symmetrically arranged at two positions, the side end measuring instruments and the central measuring instrument form a three-point measuring device, and the side end measuring instruments and the central measuring instrument are tangent to the outer wall of the same concentric circle, so that the three-point measuring device is beneficial to improving the measuring accuracy of the follow-up measuring instrument.

The inboard bottom embedding of the fixed pipe in center that is equipped with installs a reset spring, and the embedding of central measuring apparatu slip is installed in the fixed intraductal side in center to the bottom of central measuring apparatu is laminated fixedly mutually with reset spring, is favorable to realizing the operation that resets of central measuring apparatu through reset spring, thereby makes central measuring apparatu can push up tightly on the outer wall all the time when contacting with the measurement cylinder, thereby better improvement measurement accuracy.

Drawings

Fig. 1 is a schematic view of the scattering three-dimensional rear structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic diagram of the three-dimensional sectional structure of the present invention;

fig. 4 is a schematic view of the three-dimensional front side structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a fixing device; 2. the bottom is fixed with a shaft block; 3. a central fixed tube; 4. a bottom connecting arm; 5. a middle fixed shaft block; 6. an intermediate connecting arm; 7. a top connecting arm; 8. a vertical fixed arm; 9. a side end measuring instrument; 10. a central measuring instrument; 11. the top part is fixed with a shaft block; 12. a return spring.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the utility model provides a follow-up volume appearance calliper structure, including: the device comprises a fixing device 1, a vertical fixing arm 8 and a top fixing shaft block 11; one end of the fixing device 1 is fixedly provided with a central fixing tube 3, and the central fixing tube 3 is sequentially provided with a bottom fixing shaft block 2 and a middle fixing shaft block 5; the bottom fixed shaft block 2 is symmetrically provided with bottom connecting arms 4 in a shaft connection way; the middle fixed shaft block 5 is symmetrically provided with middle connecting arms 6 in a shaft connection way; the middle position of the middle connecting arm 6 is provided with a top connecting arm 7 in an axial connection mode, the top connecting arm 7 is provided with two positions in total, the top connecting arm 7 is fixed on a top fixing shaft block 11 in an axial connection mode, the middle fixing shaft block 5, the middle connecting arm 6, the top connecting arm 7 and the top fixing shaft block 11 form a crank sliding mechanism together, the top fixing shaft block 11 is driven to move through the movement of the central measuring instrument 10, the top connecting arm 7 is driven to rotate, the middle connecting arm 6 is driven to achieve synchronous displacement of the vertical fixing arms 8, and the structural design facilitates achieving synchronous displacement of the central measuring instrument 10 and the vertical fixing arms 8; the top fixed shaft block 11 is fixedly arranged on the outer side wall of the central measuring instrument 10; vertical fixed arm 8 is L column structural design, and the fixed side measuring apparatu 9 that is provided with in turning end department of vertical fixed arm 8, vertical fixed arm 8 is provided with two altogether, and vertical fixed arm 8 all is fixed in on the fixed axle piece 2 of bottom and the fixed axle piece 5 in center on the fixed pipe 3 of center through bottom linking arm 4 and the 6 coupling of middle linking arm, and bottom linking arm 4 constitutes a double-slider mechanism with middle linking arm 6 and vertical fixed arm 8 and bottom fixed axle piece 2 and middle fixed axle piece 5 jointly, this structural design is convenient for realize the synchronous displacement of two vertical fixed arms 8 through the synchronous motion of bottom linking arm 4 and middle linking arm 6, thereby make the device measure the crank structure of different diameters.

The two positions of the side end measuring instrument 9 are symmetrically arranged, the side end measuring instrument 9 and the center measuring instrument 10 form a three-point measuring device, and the side end measuring instrument 9 and the center measuring instrument 10 are tangent to the outer wall of the same concentric circle, so that the measuring accuracy of the follow-up measuring instrument is improved through the three-point measuring device.

Wherein, a reset spring 12 is installed in the inboard bottom embedding of the fixed pipe 3 of center, and the embedding of central measuring apparatu 10 slip is installed in the fixed pipe 3 inboardly of center, and the bottom of central measuring apparatu 10 is laminated fixedly mutually with reset spring 12, is convenient for realize the operation that resets of central measuring apparatu 10 through reset spring 12, thereby makes central measuring apparatu 10 can push up tightly on the outer wall all the time when contacting with the measurement cylinder, thereby better improvement measurement accuracy.

The specific use mode and function of the embodiment are as follows:

when using this follow-up measurement appearance calliper structure, at first need with this calliper structure through the fixing device 1 fixed mounting that sets up on the swing arm is followed to the measuring tool, then alright follow the swing of swing arm according to the measuring tool and carry out the measurement of bent axle data, this calliper structure can be according to the diameter between the change arbitrary side measuring apparatu 9 of different diameter bent axles and the central measuring apparatu 10 three points during the measurement to make this calliper structure accommodation wider, measured data more accurate.

In summary, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments or equivalent replacements may be made to some technical features of the embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A follow-up volume appearance calliper structure which characterized in that: comprises a fixing device (1), a vertical fixing arm (8) and a top fixing shaft block (11); a central fixed pipe (3) is fixedly arranged at one end of the fixing device (1), and a bottom fixed shaft block (2) and a middle fixed shaft block (5) are sequentially arranged on the central fixed pipe (3); the bottom fixed shaft block (2) is symmetrically provided with bottom connecting arms (4) in a shaft connection way; the middle fixed shaft block (5) is symmetrically provided with middle connecting arms (6) in a shaft connection way; a top connecting arm (7) is arranged at the middle position of the middle connecting arm (6) in a shaft connection manner; the top fixed shaft block (11) is fixedly arranged on the outer side wall of the central measuring instrument (10); the vertical fixing arm (8) is designed to be of an L-shaped structure, and a side end measuring instrument (9) is fixedly arranged at the corner end of the vertical fixing arm (8).

2. The follower gauge caliper structure of claim 1, wherein: vertical fixed arm (8) are provided with two places altogether, and vertical fixed arm (8) all are fixed in on bottom fixed axle piece (2) and middle fixed axle piece (5) on central fixed pipe (3) through bottom linking arm (4) and middle linking arm (6) coupling to bottom linking arm (4) and middle linking arm (6) and vertical fixed arm (8) and bottom fixed axle piece (2) and middle fixed axle piece (5) constitute a pair slider mechanism jointly.

3. The follower gauge caliper structure of claim 1, wherein: the top connecting arm (7) is provided with two positions, the top connecting arm (7) is rotationally fixed on the top fixing shaft block (11) in a shaft connection mode, and the middle fixing shaft block (5), the middle connecting arm (6), the top connecting arm (7) and the top fixing shaft block (11) jointly form a crank sliding mechanism.

4. The follower gauge caliper structure of claim 1, wherein: the side end measuring instruments (9) are symmetrically arranged at two positions, the side end measuring instruments (9) and the central measuring instrument (10) form a three-point measuring device, and the side end measuring instruments (9) and the central measuring instrument (10) are tangent to the outer wall of the same concentric circle.

5. The follower gauge caliper structure of claim 1, wherein: the bottom of the inner side of the central fixing pipe (3) is embedded with a return spring (12), the central measuring instrument (10) is embedded in the inner side of the central fixing pipe (3) in a sliding mode, and the bottom end of the central measuring instrument (10) is attached and fixed to the return spring (12).