CN102721344B - Cone runout detection device and cone runout detection method - Google Patents

Cone runout detection device and cone runout detection method Download PDF

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Publication number
CN102721344B
CN102721344B CN201210226221.1A CN201210226221A CN102721344B CN 102721344 B CN102721344 B CN 102721344B CN 201210226221 A CN201210226221 A CN 201210226221A CN 102721344 B CN102721344 B CN 102721344B
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China
Prior art keywords
conical surface
detection
dial gauge
core shaft
cone
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CN201210226221.1A
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CN102721344A (en
Inventor
王小雄
李春祥
郭强强
胥媛媛
牛海超
丁殿龙
陈世雄
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Pinghu branch of Great Wall Motor Co., Ltd
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Great Wall Motor Co Ltd
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Abstract

The embodiment of the invention discloses a cone runout detection device and a cone runout detection method, relating to the technical field of a detection device and aiming to solve the problem of the existing detection technology that connector threads must be damaged for cone runout detection. The cone runout detection device comprises a dial indicator, a tubular detection ring sleeve with threads on the outer surface and a rotary core shaft; the rotary core shaft comprises a columnar body and a touch panel; the bottom surface of the touch panel is fixedly connected with the top end of the columnar body; the touch panel is arranged outside the detection ring sleeve; the columnar body is in clearance fit with the inner surface of the detection ring sleeve through; the top surface of the touch panel is contacted with a measuring rod of the dial indicator; the bottom end of the columnar body is provided with a detection head in a protruding way, and the inclination of the top surface of the detection head is identical to the design angle of a cone to be detected; and the dial indicator is used for converting the linear displacement of the detection head into angular displacement, and the angular displacement is displayed on a dial of the dial indicator. The device is used for detecting cone runout.

Description

A kind of conical surface jitter detection apparatus and conical surface glitch detection method
Technical field
The present invention relates to pick-up unit technical field, particularly relate to a kind of conical surface jitter detection apparatus and conical surface glitch detection method.
Background technology
At present, the sealing of pipe adapter class part generally adopts conical surface boss and bell-mouthed being connected to realize, such as, the air-brake coupling hose of automobile brake system and the mode of being tightly connected of brake pipe are, as shown in Figure 1, the hydraucone 2 of air-brake coupling hose 4 one end is nested with on the conical surface boss 6 of the joint 3 of brake pipe 1, fixed screw 5 is torqued in the threaded hole 7 of joint, hydraucone 2 fits tightly with the conical surface boss 6 of joint 3 under the force effect of fixed screw 5, to prevent the seepage of brake oil, therefore conical surface boss is adding man-hour, its conical surface must have higher machining precision could realize good sealing.
The radial interference amount of sealing cone ensures the bubble-tight important parameter of joint, and be also one of important parameter needing close inspection in production run, this just relates to the detection of the diameter run-out (namely the conical surface is beated) of the axis of thread to conical surface opposing tabs.But there is no special testing tool, the conical surface of conical surface boss of butt junction timely and effectively can not beat and detect, clamped one time in process can only be leaned against in the past and machine, not easily ensure that the conical surface is beated in regulating scope, thus affect product quality.
Also the method adopting the cone gauge measurement conical surface to beat is had, but generally all want butt junction to destroy, remove screw measurement, such testing cost is too high, therefore cannot realize inspecting by random samples the product of batch production process, the strict control of a quality that also just cannot achieve a butt joint.
Summary of the invention
Embodiments of the invention provide a kind of conical surface jitter detection apparatus and conical surface glitch detection method, must destroy for solving existing detection technique the problem that joint screw thread carries out conical surface glitch detection.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of conical surface jitter detection apparatus, comprises dial gauge, outside surface establishes threaded tubulose to detect ring set and rotary core shaft; Rotary core shaft comprises cylindrical body and touching disc; The bottom surface of touching disc is fixedly connected with the top of cylindrical body; Touching disc is positioned at the outside detecting ring set; Cylindrical body coordinates with the internal surface gaps detecting ring set; The end face of touching disc is for contacting the measuring staff of dial gauge; The bottom of cylindrical body is equipped with detection head, and the angle of inclination of the end face of detection head is consistent with the design angle of the conical surface to be measured; Dial gauge is for becoming the straight-line displacement of detection head the dial plate that angular displacement is presented at dial gauge.
The bottom of the cylindrical body of described rotary core shaft is provided with bellmouth.
Described detection head is high-abrasive material.
The measuring accuracy of described dial gauge is less than or equal to 0.01mm.
The embodiment of the present invention additionally provides a kind of conical surface glitch detection method using above-mentioned conical surface glitch detection side device to realize, and comprising:
Described detection ring set is screwed in the threaded hole of joint to be measured;
The cylindrical body of described rotary core shaft be inserted in described detection ring set, the conical surface to be measured in described detection head and described joint to be measured is fitted;
Described dial gauge measuring staff is contacted with the end face of described touching disc;
Rotate the touching disc one week of described rotary core shaft, read the variation value on the dial plate of described dial gauge, to obtain the numerical value that the conical surface is beated.
In the conical surface jitter detection apparatus that the embodiment of the present invention provides, the screw thread that described detection ring set outside surface is arranged can be connected with the threaded hole of joint to be measured, the cylindrical body of described rotary core shaft can be inserted in described detection ring set, because the angle of inclination of the detection head end face of described cylindrical body is consistent with the design angle of the conical surface to be measured of joint to be measured, therefore described detection head and the described conical surface to be measured can effectively be fitted, the touching disc of the described rotary core shaft of such rotation one week, if there is the conical surface to beat, described touching disc can move up and down, due to the measuring staff of described dial gauge and the tip contact of described touching disc, therefore described dial gauge can change the straight-line displacement of described detection head into angular displacement and is presented on dial plate, the numerical value that the conical surface being the conical surface is beated.Without the need to the thread damage of joint is fallen in testing process, solve existing detection technique and must destroy the problem that joint screw thread carries out conical surface glitch detection.
The conical surface glitch detection method that the embodiment of the present invention provides, above-mentioned conical surface jitter detection apparatus is utilized to realize, therefore can when detection cone surface jitter first detection ring set be screwed in the threaded hole of joint to be measured and the cylindrical body of rotary core shaft is inserted in described detection ring set, the conical surface to be measured of detection head and joint to be measured is fitted; Then contacted by the touching disc of dial gauge measuring staff with described rotary core shaft, finally rotate the touching disc one week of described rotary core shaft, namely the variation value read on the dial plate of dial gauge obtains the numerical value that the conical surface is beated.Without the need to the thread damage of joint is fallen in testing process, solve existing detection technique and must destroy the problem that joint screw thread carries out conical surface glitch detection.
Accompanying drawing explanation
Fig. 1 is the annexation schematic diagram of prior art brake pipe and air-brake coupling hose;
The annexation schematic diagram of the conical surface jitter detection apparatus that Fig. 2 provides for the embodiment of the present invention and joint;
The structural representation of the conical surface jitter detection apparatus that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the structural representation of rotary core shaft shown in Fig. 3;
The process flow diagram of the conical surface glitch detection method that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention conical surface jitter detection apparatus and conical surface glitch detection method are described in detail.
Should be clear and definite, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figures 2 and 3, embodiments provide a kind of conical surface jitter detection apparatus, comprise dial gauge 30, tubulose that outside surface is provided with screw thread 12 detects ring set 11 and rotary core shaft 22; Rotary core shaft 22 comprises cylindrical body 221 and touching disc 222; The bottom surface of touching disc 222 is fixedly connected with the top of cylindrical body 221; Touching disc 222 is positioned at the outside detecting ring set 11; Cylindrical body 221 coordinates with the internal surface gaps detecting ring set 11; The end face of touching disc 222 is for contacting the measuring staff 31 of dial gauge 30; The bottom of cylindrical body 221 is equipped with detection head 33, and the angle of inclination of the end face of detection head 33 is consistent with the design angle of the conical surface 13 to be measured; Dial gauge 30 is for becoming the dial plate 32 that angular displacement is presented at dial gauge 30 by the straight-line displacement of detection head 33.
In the conical surface jitter detection apparatus that the embodiment of the present invention provides, the screw thread detecting the setting of ring set 11 outside surface can be connected with the threaded hole 18 of joint 8 to be measured, the cylindrical body 221 of rotary core shaft 22 can be inserted and detect in ring set 11, because the angle of inclination of the end face of the detection head 33 of cylindrical body 221 is consistent with the design angle of the conical surface to be measured 13 of joint 8 to be measured, therefore detection head 33 and the conical surface 13 to be measured can effectively be fitted, the touching disc of such rotation rotary core shaft 22 222 1 weeks, if there is the conical surface to beat, touching disc 222 can move up and down, due to the measuring staff 31 of dial gauge 30 and the tip contact of touching disc 222, therefore the straight-line displacement of detection head 33 can be changed into angular displacement and is presented on dial plate 32 by dial gauge 30, the numerical value that the conical surface being the conical surface is beated.Without the need to the thread damage of joint is fallen in testing process, solve existing detection technique and must destroy the problem that joint screw thread carries out conical surface glitch detection.
As shown in Figure 4, the bottom of the cylindrical body 221 of described rotary core shaft 22 can be provided with bellmouth 14.It is relatively less that the axial dimension of such detection head 33 can design, and improves the rigidity of detection head 33, in testing process, and the detection making detection head 33 move up and down the conical surface to beat by bellmouth 14.
Preferably, described detection head can be high-abrasive material.Due in testing process, described detection head and the described conical surface are fitted, in the process of rotating at described detection head like this can and described conical surface friction, of a specified duration just can be worn, and affects accuracy of detection.Therefore described detection head uses high-abrasive material to increase the service life, and improves accuracy of detection.
Further, the measuring accuracy of described dial gauge is less than or equal to 0.01mm.This is to ensure measuring accuracy, reduces measuring error, also can adopt the measuring instrument that clock gauge equally accurate is higher in other embodiments of the invention.
With reference to shown in Fig. 5, the embodiment of the present invention additionally provides a kind of conical surface glitch detection method using above-mentioned conical surface jitter detection apparatus to realize, and comprises the steps.
501, described detection ring set is screwed in the threaded hole of joint to be measured.
502, the cylindrical body of described rotary core shaft be inserted in described detection ring set, the conical surface to be measured in described detection head and described joint to be measured is fitted.
503, described dial gauge measuring staff is contacted with the end face of described touching disc.
504, rotate the touching disc one week of described rotary core shaft, read the variation value on the dial plate of described dial gauge, to obtain the numerical value that the conical surface is beated.
The conical surface glitch detection method that the embodiment of the present invention provides, above-mentioned conical surface jitter detection apparatus is utilized to realize, therefore can when detection cone surface jitter first detection ring set be screwed in the threaded hole of joint to be measured and the cylindrical body of rotary core shaft is inserted in described detection ring set, the conical surface to be measured of detection head and joint to be measured is fitted; Then contacted with the top touching disc of described rotary core shaft by dial gauge measuring staff, finally rotate the touching disc one week of described rotary core shaft, namely the variation value read on the dial plate of dial gauge obtains the numerical value of conical surface jerk value.Without the need to the thread damage of joint is fallen in testing process, solve existing detection technique and must destroy the problem that joint screw thread carries out conical surface glitch detection.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.

Claims (5)

1. a conical surface jitter detection apparatus, is characterized in that, comprises dial gauge, outside surface establishes threaded tubulose to detect ring set and rotary core shaft; The screw thread that described detection ring set outside surface is arranged can be connected with the threaded hole of joint to be measured; Rotary core shaft comprises cylindrical body and touching disc; The bottom surface of touching disc is fixedly connected with the top of cylindrical body; Touching disc is positioned at the outside detecting ring set; Cylindrical body coordinates with the internal surface gaps detecting ring set; The end face of touching disc is for contacting the measuring staff of dial gauge; The bottom of cylindrical body is equipped with detection head, and the angle of inclination of the end face of detection head is consistent with the design angle of the conical surface to be measured; Dial gauge is for becoming the straight-line displacement of detection head the dial plate that angular displacement is presented at dial gauge.
2. conical surface jitter detection apparatus according to claim 1, is characterized in that, the bottom of the cylindrical body of described rotary core shaft is provided with bellmouth.
3. conical surface jitter detection apparatus according to claim 2, is characterized in that, described detection head is high-abrasive material.
4. conical surface jitter detection apparatus according to claim 1 and 2, is characterized in that, the measuring accuracy of described dial gauge is less than or equal to 0.01mm.
5. the conical surface glitch detection method using the conical surface jitter detection apparatus according to any one of claim 1-4 to realize, is characterized in that, comprising:
Described detection ring set is screwed in the threaded hole of joint to be measured;
The cylindrical body of described rotary core shaft be inserted in described detection ring set, the conical surface to be measured in described detection head and described joint to be measured is fitted;
Described dial gauge measuring staff is contacted with the end face of described touching disc;
Rotate the touching disc one week of described rotary core shaft, read the variation value on the dial plate of described dial gauge, to obtain the numerical value that the conical surface is beated.
CN201210226221.1A 2012-06-30 2012-06-30 Cone runout detection device and cone runout detection method Active CN102721344B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901423B (en) * 2012-10-22 2015-06-10 无锡市迈日机器制造有限公司 Valve seat ring jerk testing tool
CN104457530A (en) * 2013-09-13 2015-03-25 北汽福田汽车股份有限公司 Brake pipe joint concentricity detection tool
CN103759619A (en) * 2013-12-31 2014-04-30 广西玉柴机器股份有限公司 Lower cylinder hole chamber detection device of engine cylinder
CN104197803A (en) * 2014-09-22 2014-12-10 安徽江淮汽车股份有限公司 Detection tool for detecting skipping of conical surface of cylinder cover valve seat ring
CN109839048B (en) * 2019-03-26 2024-01-26 青岛华瑞汽车零部件股份有限公司 Gauge for detecting runout of conical surface of air outlet hole of oil inlet hole of brake

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285132A (en) * 1979-10-22 1981-08-25 Kloster Kenneth D Piston rod runout gauge
SU1585647A1 (en) * 1988-01-25 1990-08-15 Предприятие П/Я В-2190 Device for measuring profile of constant curvature of body of rotation
CN201757635U (en) * 2010-05-18 2011-03-09 沈阳飞机工业(集团)有限公司 Device for detecting runout of relative thread axis of coaxial surface
CN201837351U (en) * 2010-09-30 2011-05-18 南阳飞龙汽车零部件有限公司 Device for detecting angle of discontinuous cone-shaped rotator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285132A (en) * 1979-10-22 1981-08-25 Kloster Kenneth D Piston rod runout gauge
SU1585647A1 (en) * 1988-01-25 1990-08-15 Предприятие П/Я В-2190 Device for measuring profile of constant curvature of body of rotation
CN201757635U (en) * 2010-05-18 2011-03-09 沈阳飞机工业(集团)有限公司 Device for detecting runout of relative thread axis of coaxial surface
CN201837351U (en) * 2010-09-30 2011-05-18 南阳飞龙汽车零部件有限公司 Device for detecting angle of discontinuous cone-shaped rotator

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Effective date of registration: 20191226

Address after: 314200 north side of Rongrong Road, east side of Pingshan Avenue, Pinghu Economic and Technological Development Zone, Jiaxing City, Zhejiang Province

Patentee after: Pinghu branch of Great Wall Motor Co., Ltd

Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding

Patentee before: Changcheng Automobile Co., Ltd.

TR01 Transfer of patent right