CN214792873U - Relative run-out detector - Google Patents

Abstract

The utility model discloses a relative detector of beating, include: the device comprises a measuring meter, a fixed seat, a detection sleeve, a measuring pin and a measurer. The measuring probe is arranged on the fixed seat in a sliding mode along the vertical direction, and the measuring meter is provided with a detecting end which is abutted against the measuring probe downwards. The detection sleeve rotates and installs in the downside of fixing base, and the detection sleeve is including detecting the boss and being the ring cover tube-shape and locating the cover portion of establishing that detects the boss outside. The rotating axial direction and the sleeving part of the detection sleeve are coaxially arranged with the measuring needle. The tester comprises: the hinge part is hinged with the detection boss, the measuring end is arranged below the hinge part, and the lifting end is arranged below the measuring needle. The upper side of the lifting end is provided with a semi-spherical tightening part which is abutted with the measuring pin, and the lifting end is elastically connected with the detection boss. The utility model discloses a detector of beating relatively, through detecting sleeve and survey son respectively with part excircle and round hole inner wall cooperation, will beat relatively the error and transmit the gauge through the measuring stylus. The utility model discloses can be applied to in the detection area.

Description

Relative run-out detector

Technical Field

The utility model relates to a detection apparatus technical field, in particular to relative detector of beating.

Background

Circular holes on parts such as automobile gearboxes, engines, shells, cylinder covers and the like generally have higher precision requirements relative to machined excircles, but conventional measuring tools or means cannot directly measure relative jumping parameters of hole surfaces or have larger measuring errors.

In the prior art, the face runout parameter can be measured by a three-coordinate measuring machine, or by visual measurement or laser measurement. The three-coordinate measuring machine is expensive and has high requirements on the detection environment; the vision measurement and the laser measurement have higher requirements on the position of the detected part, and a complex part positioning mechanism needs to be matched when the detection is carried out. In consideration of the detection cost, these detection methods are not suitable for general processing plants and cannot be widely used. Therefore, a need exists in the market for a measuring device for measuring the relative run-out parameter of a circular hole, which is convenient to use.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a relative run-out detector to solve one or more of the problems of the prior art and to provide at least one of the advantages of the present invention.

The technical scheme adopted for solving the technical problems is as follows:

a relative jitter detector, comprising: the device comprises a measuring meter, a fixed seat, a detection sleeve, a measuring pin and a measurer;

the measuring instrument is arranged at the top of the fixed seat, the measuring needle is arranged at the lower side of the measuring instrument and is installed on the fixed seat in a sliding mode along the vertical direction, and the measuring instrument is provided with a detecting end which is abutted against the measuring needle downwards;

the detection sleeve is located the downside of fixing base and with the fixing base rotates and is connected, the detection sleeve includes: the detection device comprises a detection boss and a sleeving part which is in a circular sleeve shape and is arranged on the outer side of the detection boss, wherein the measuring needle is in a cylindrical shape, and the rotating axial direction of the detection sleeve and the sleeving part are coaxially arranged with the measuring needle;

the measuring probe is arranged on the inner side of the sleeving part and comprises a hinge part, a measuring end and a lifting end, the hinge part is hinged to the detection boss, the measuring end is arranged below the hinge part, the lifting end is arranged below the measuring needle, a semi-spherical jacking part is arranged on the upper side of the lifting end and is abutted to the measuring needle, and the lifting end is elastically connected with the detection boss.

The utility model provides a detector beats relatively has following beneficial effect at least: through the lifting end elastically connected with the detection boss, the lifting end rotates downwards around the hinged part, and the measuring end can be tightly propped outwards along the radial direction. When the measurement is carried out, the detection sleeve can be rotated relative to the workpiece to be measured by rotating the detection sleeve. The sleeving part can be sleeved on the outer circle of the measured workpiece, and the measuring device can be abutted on the hole wall of the machining hole, so that the relative jumping of the machining hole can be converted into the radial jumping of the measuring end. The radial run-out of the measuring end is transmitted to the measuring needle through the tightening part and converted into the up-down run-out of the measuring needle, and the up-down run-out of the measuring needle can be measured through the detecting end of the measuring meter, so that the relative run-out parameter of the machined hole is obtained. The relative run-out detector of the utility model is a hand-held checking fixture, which is convenient to operate and has low use requirement; can be through surveying the son with beating transform the vertical beat of survey needle, the relative beat of accurate measurement round hole and benchmark excircle.

As a further improvement of the technical scheme, the fixing seat comprises a holding part and a connecting part, and the holding part and the connecting part are both in a cylindrical shape and are coaxially arranged with the measuring needle. Through the technical scheme, the fixed seat is rotationally connected with the detection sleeve through the cylindrical connecting portion, the measurer can be held through the holding portion, and the number of the measuring meter can be read conveniently.

As a further improvement of the above technical scheme, the detection sleeve further comprises a connection sleeve, the connection sleeve is in a cylindrical sleeve shape, the connection sleeve is coaxially rotatably sleeved on the outer side of the connection portion, the upper end of the detection boss is installed at the bottom of the connection sleeve, and the sleeved portion is coaxially arranged with the connection sleeve and detachably connected. Through the technical scheme, the connecting part, detect the boss with the portion of establishing of cover can pass through connecting sleeve interconnect erection joint makes the portion of establishing of cover can be relative the coaxial rotation of connecting part provides the benchmark for the parameter of beating relatively.

As a further improvement of the above technical solution, a rotating bearing is coaxially arranged between the connecting sleeve and the connecting portion, the connecting sleeve is coaxially rotatably connected with the connecting portion through the rotating bearing, a compression nut is installed on a lower end thread of the connecting portion, and the top of the compression nut abuts against the rotating bearing. The bearing can reduce the rotation friction of the rotating part and ensure the rotation precision. Through the technical scheme, the compression nut can compress the rotating bearing on the connecting part, and the connecting sleeve can be connected with the connecting part through the rotating bearing in a coaxial rotating mode, wherein the precision of the connecting sleeve is kept.

As a further improvement of the above technical scheme, the number of the rolling bearings is two, two a cushion block is further arranged between the rolling bearings, the top of the compression nut abuts against the rolling bearings arranged on the lower side, the cushion block is in a circular ring shape and is coaxially and movably sleeved on the connecting portion, the upper end and the lower end of the cushion block abut against the two rolling bearings respectively, the periphery of the cushion block is in a shape that the middle is concave and the upper end and the lower end are convex, the connecting sleeve is provided with a plurality of connecting screw holes which are parallel and level to the cushion block and are arranged along the radial direction, and the connecting screw holes are uniformly distributed along the circumferential direction. Through above-mentioned technical scheme, two rolling bearing can avoid connecting portion and connecting sleeve take place the beat, the cushion with two rolling bearing separates the increase distance, further improves coaxial rotation precision. The connecting sleeve can be installed on the machine-meter screw of the connecting screw hole through threads and tightly abutted to the outer side of the cushion block, so that the connecting sleeve is axially connected with the cushion block, and axial movement between the connecting sleeve and the connecting portion is avoided.

As a further improvement of the above technical scheme, the upper end of the detection boss is provided with a connecting shaft in a cylindrical shape, the connecting shaft coaxially penetrates through the inner side of the lower end of the connecting sleeve, the top of the sleeving part is coaxially sleeved on the outer side of the lower end of the connecting sleeve, and the connecting shaft and the connecting sleeve as well as the connecting sleeve and the sleeving part are connected through screws arranged along the radial direction. Through the technical scheme, the detection boss penetrates through the inner side of the lower end of the connecting sleeve through the connecting shaft and is connected with the connecting sleeve through radial screw threads, so that the detection boss is fixedly connected with the connecting sleeve; similarly, the upper end of the sheathing part is arranged outside the lower end of the connecting sleeve through a screw; so that the sleeve part and the detection boss can be replaced according to the excircle specification of the workpiece to be measured.

As a further improvement of the technical scheme, the lower side of the detection boss is also provided with a guide post which is cylindrical and is coaxially arranged with the sleeving part. Through above-mentioned technical scheme, except that establishing the portion and the cooperation of work piece excircle through the cover and measuring the relative beating in processing hole, can also measure the relative beating in processing hole through the cooperation of guide post and the coaxial benchmark hole of work piece.

As a further improvement of the technical scheme, the distance from the measuring end to the hinge part is consistent with the distance from the tightening part to the hinge part. Through the technical scheme, the distance between the measuring end and the tight supporting part to the hinge part is consistent, so that the horizontal runout of the measuring end can be equivalently converted into the vertical runout of the tight supporting part, and the measuring meter can directly obtain a runout value without proportion conversion, so that the measurement is more visual.

As a further improvement of the technical scheme, a positioning ring is coaxially sleeved on the outer side of the measuring needle, a compression spring is arranged between the positioning ring and the fixing seat, the compression spring is coaxially sleeved on the outer side of the measuring needle, and the upper end and the lower end of the compression spring respectively and elastically abut against the positioning ring and the fixing seat. Through the technical scheme, the elastic force of the compression spring acts on the positioning ring and the fixing seat, so that the measuring needle can be relatively abutted downwards against the fixing seat under the action of the elastic force, and the measuring needle can be always abutted downwards against the tight-pushing part of the measuring probe.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a perspective view of an embodiment of a relative run-out detector according to the present invention;

FIG. 2 is a schematic diagram of a relative jitter detector according to an embodiment of the present invention, shown in a forward exploded view;

fig. 3 is a perspective exploded view of an embodiment of a relative run-out detector according to the present invention;

fig. 4 is a front cross-sectional view of an embodiment of a relative run-out detector provided by the present invention.

In the figure, 100, a measuring meter, 110, a detection end, 200, a fixed seat, 210, a holding part, 220, a connecting part, 221, a rotating bearing, 222, a compression nut, 223, a cushion block, 300, a detection sleeve, 310, a detection boss, 311, a connecting shaft, 312, a guide column, 320, a sleeving part, 330, a connecting sleeve, 400, a measuring pin, 410, a positioning ring, 420, a compression spring, 500, a measuring piece, 510, a hinge part, 520, a measurement end, 530, a lifting end, 531 and a jacking part.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, the relative jitter detector of the present invention makes the following embodiments:

a relative jitter detector, comprising: the measuring instrument 100, the fixed seat 200, the detecting sleeve 300, the measuring pin 400 and the measuring element 500.

The meter 100 is disposed on the top of the fixing base 200, and the probe 400 is disposed on the lower side of the meter 100 and slidably mounted on the fixing base 200 in the up-down direction. The measuring gauge 100 is provided with a detecting end 110 which is abutted against the upper end of the measuring pin 400 downwards. The holder 200 includes: a grip portion 210 and a connecting portion 220. The stylus 400 is cylindrical, and the holding portion 210 and the connecting portion 220 are both cylindrical and are disposed coaxially with the stylus 400.

The detection sleeve 300 is disposed at the lower side of the fixing base 200 and rotatably connected to the fixing base 200.

The detection sleeve 300 includes: a connecting sleeve 330, a detecting boss 310 and a sleeve part 320.

The connecting sleeve 330 is in the form of a cylindrical sleeve. The connecting sleeve 330 is coaxially and rotatably sleeved on the outer side of the connecting portion 220. A rotating bearing 221 is coaxially arranged between the connecting sleeve 330 and the connecting portion 220, and the connecting sleeve 330 is coaxially and rotatably connected with the connecting portion 220 through the rotating bearing 221. In order to ensure the coaxiality of the connecting sleeve 330 and the connecting portion 220 and avoid offset, in this embodiment, the number of the rotating bearings 221 is two, and a spacer 223 is further disposed between the two rotating bearings 221. A compression nut 222 is screwed to a lower end of the connecting portion 220, and a top of the compression nut 222 abuts against a rotary bearing 221 provided on a lower side. The cushion block 223 is annular and coaxially sleeved on the connecting portion 220, and the upper end and the lower end of the cushion block 223 are respectively abutted against the two rotating bearings 221.

In this embodiment, the periphery of the pad block 223 is concave in the middle, and convex at the upper and lower ends, the connection sleeve 330 is provided with a plurality of connection screw holes which are flush with the pad block 223 and radially arranged, and the plurality of connection screw holes are uniformly distributed along the circumferential direction. The connecting sleeve 330 is mounted on the middle part of the cushion block 223 tightly through a set screw of the connecting screw hole in a threaded manner, so that the connecting sleeve 330 is axially connected with the cushion block 223, and the coaxial rotary connection between the connecting sleeve 330 and the connecting part 220 is realized.

In order to prevent the probe 400 from being unable to return downward due to the small elastic force of the detecting end 110 of the measuring gauge 100, in some embodiments, a positioning ring 410 is coaxially sleeved outside the probe 400, a compression spring 420 is disposed between the positioning ring 410 and the fixing base 200, the compression spring 420 is coaxially sleeved outside the probe 400, and the upper end and the lower end of the compression spring 420 respectively elastically abut against the positioning ring 410 and the fixing base 200. In other embodiments, other elastic members may be disposed between the stylus 400 and the fixing base 200, for example, a metal spring such as a tension spring or a torsion spring, or a rubber spring, a diaphragm spring, or a hydraulic spring, and both the stylus 400 and the fixing base 200 are connected to the elastic members, so that the stylus 400 is held down and tightly pressed against the fixing base 200.

The upper end of the detection boss 310 is provided with a connecting shaft 311 in a cylindrical shape, and the connecting shaft 311 coaxially penetrates through the inner side of the lower end of the connecting sleeve 330. The connecting shaft 311 is uniformly provided with a plurality of threaded holes arranged along the radial direction along the circumferential direction, the connecting sleeve 330 is provided with corresponding screw mounting holes, and the connecting shaft 311 and the connecting sleeve 330 are fixedly connected with each other through screws.

The sleeve portion 320 is a circular sleeve, and the sleeve portion 320 is disposed outside the detection boss 310 and coaxially disposed with the connection sleeve 330. The lower extreme of connecting sleeve 330 evenly is equipped with a plurality of screws along radial setting along circumference, the upper end cover of the portion 320 of establishing of cover is located the lower extreme outside of connecting sleeve 330, the upper end of the portion 320 of establishing of cover be equipped with the screw mounting hole that the screw corresponds, the portion 320 of establishing of cover with connecting axle 311 passes through screw fixed connection.

The probe 500 is disposed inside the sheath portion 320. The probe 500 includes: a hinge 510, a measuring end 520, and a lifting end 530. The hinge 510 is pivotally mounted on the detecting boss 310, and the rotation axis of the detector 500 is arranged along the front-back direction. The measuring end 520 is disposed below the hinge 510, and the measuring end 520 protrudes outward from the detecting boss 310 along the radial direction of the stylus 400. The lifting end 530 is arranged at the inner side of the detection boss 310, a semi-spherical tightening part 531 is arranged at the upper side of the lifting end 530, and the tightening part 531 is abutted with the lower end of the measuring pin 400. The downside of lift end 530 still is equipped with the extension spring, the extension spring sets up along upper and lower direction, the upper and lower both ends of extension spring respectively with lift end 530 and detection boss 310 elasticity are taut to be connected, lift end 530 with detect boss 310 passes through the mutual elastic connection of extension spring.

In this embodiment, the distance from the measuring end 520 to the hinge portion 510 is the same as the distance from the tightening part 531 to the hinge portion 510. The radial run-out of the measuring end 520 of the measuring unit 500 can be converted into the up-and-down movement of the lifting end 530 in equal amount, so that the run-out parameter can be obtained by the measuring meter 100 according to the up-and-down movement of the measuring needle 400.

Referring to fig. 1 to 4, in using the relative runout detector of the present invention: firstly, the sleeve 320 is sleeved on the outer circle of the measured part, so that the measuring end 520 of the measuring probe 500 abuts against the hole wall of the measured hole. Then, the grip portion 210 is grasped, and the detecting sleeve 300 is rotated, so that the detector 500 is rotated relative to the part to be detected. In the process of detecting the rotation of the sleeve 300, the lifting end 530 of the probe 500 is tensioned downwards under the action of the tension spring, so that the measuring end 520 always abuts against the hole wall to be measured outwards. The radial run-out of the measuring tip 520 is translated into an up-and-down motion of the stylus 400 by the tightening part 531. And then the measuring meter 100 reads out the vertical runout of the measuring probe 400 to obtain the relative runout parameter of the measured hole.

For some measured parts provided with coaxial holes, in order to enhance the coaxiality between the detection sleeve 300 and the measured part, in some embodiments, the lower side of the detection boss 310 is further provided with a guide post 312, and the guide post 312 is cylindrical and is coaxially arranged with the sleeve portion 320. When the excircle of the measured part is sleeved by the sleeving part 320, the guide column 312 is inserted into the coaxial hole, so that the coaxial rotating connection between the measured part and the detection sleeve 300 is enhanced. It is also possible to measure the relative run-out parameter between the coaxial hole and the hole to be measured by merely inserting the guide post 312 into the coaxial hole.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims (9)

1. A relative jitter detector, characterized by: the method comprises the following steps: the device comprises a measuring meter (100), a fixed seat (200), a detection sleeve (300), a measuring pin (400) and a measurer (500);

the measuring instrument (100) is arranged at the top of the fixed seat (200), the measuring needle (400) is arranged at the lower side of the measuring instrument (100) and is slidably mounted on the fixed seat (200) along the vertical direction, and the measuring instrument (100) is provided with a detection end (110) which is abutted against the measuring needle (400) downwards;

detect sleeve (300) locate the downside of fixing base (200) and with fixing base (200) rotate to be connected, detect sleeve (300) include: the detection device comprises a detection boss (310) and a sleeving part (320) which is in a circular sleeve shape and is arranged on the outer side of the detection boss (310), wherein the measuring needle (400) is in a cylindrical shape, and the rotating axial direction of the detection sleeve (300) and the sleeving part (320) are coaxially arranged with the measuring needle (400);

the utility model discloses a survey probe (500) and detection method, including survey probe (500) and survey probe (530), survey probe (500) is located the inboard of portion (320) is established to the cover, survey probe (500) includes articulated portion (510), measuring end (520) and lift end (530), articulated portion (510) install in detect boss (310), measuring end (520) are located the below of articulated portion (510), lift end (530) are located the below of survey probe (400), the upside of lift end (530) is equipped with the tight portion in top (531) of hemisphere form, the tight portion in top (531) with survey probe (400) looks butt, lift end (530) with detect boss (310) elastic connection.

2. A relative jitter detector as claimed in claim 1, wherein: the fixing seat (200) comprises a holding part (210) and a connecting part (220), wherein the holding part (210) and the connecting part (220) are both in a cylindrical shape and are coaxially arranged with the measuring needle (400).

3. A relative jitter detector as claimed in claim 2, wherein: detect sleeve (300) and still include connecting sleeve (330), connecting sleeve (330) are cylindrical cover tube-shape, connecting sleeve (330) coaxial rotation cover is located the outside of connecting portion (220), the upper end of detecting boss (310) install in the bottom of connecting sleeve (330), the portion (320) are established to the cover with connecting sleeve (330) coaxial setting and releasable connection.

4. A relative jitter detector as claimed in claim 3, wherein: connecting sleeve (330) with coaxial rolling bearing (221) that is provided with between connecting portion (220), connecting sleeve (330) pass through rolling bearing (221) with connecting portion (220) coaxial rotation is connected, gland nut (222) is installed to the lower extreme screw thread of connecting portion (220), the top of gland nut (222) with rolling bearing (221) butt.

5. The relative jitter detector of claim 4, wherein: the quantity of rolling bearing (221) is two, two still be equipped with cushion (223) between rolling bearing (221), the top of gland nut (222) with rolling bearing (221) the butt of locating the downside, cushion (223) are the ring form and coaxial movable sleeve is located connecting portion (220), the upper and lower both ends of cushion (223) respectively with two rolling bearing (221) butt, the periphery of cushion (223) is middle indent, the shape of upper and lower both ends evagination, connecting sleeve (330) be equipped with a plurality ofly with cushion (223) looks parallel and level, along the connection screw of radial setting, it is a plurality of connect the screw along circumference evenly distributed.

6. A relative jitter detector as claimed in claim 3, wherein: the upper end of detecting boss (310) is equipped with connecting axle (311) that is the cylindrical shape, connecting axle (311) are coaxial to be worn to locate the lower extreme of connecting sleeve (330) is inboard, the coaxial cover in top of portion (320) is established to the cover is located the lower extreme outside of connecting sleeve (330), connecting axle (311) and connecting sleeve (330) are established portion (320) and are all connected through the screw along radially setting up with the cover.

7. A relative jitter detector as claimed in claim 3, wherein: the downside that detects boss (310) still is equipped with guide post (312), guide post (312) are cylindricly and with the coaxial setting of cover portion (320).

8. A relative jitter detector as claimed in claim 1, wherein: the distance from the measuring end (520) to the hinge part (510) is consistent with the distance from the tightening part (531) to the hinge part (510).

9. A relative jitter detector as claimed in claim 1, wherein: the coaxial cover in outside of measuring pin (400) is equipped with holding ring (410), be equipped with compression spring (420) between holding ring (410) and fixing base (200), compression spring (420) coaxial cover is located the outside of measuring pin (400), the upper and lower both ends of compression spring (420) respectively elasticity support tightly in holding ring (410) and fixing base (200).

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