CN103499316A - Inspection device for detecting depth of oil grooves of valve sleeve - Google Patents

Inspection device for detecting depth of oil grooves of valve sleeve Download PDF

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Publication number
CN103499316A
CN103499316A CN201310375493.2A CN201310375493A CN103499316A CN 103499316 A CN103499316 A CN 103499316A CN 201310375493 A CN201310375493 A CN 201310375493A CN 103499316 A CN103499316 A CN 103499316A
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CN
China
Prior art keywords
valve pocket
locating shaft
depth
oil grooves
pneumatic measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310375493.2A
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Chinese (zh)
Inventor
董钢涛
张黎明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Green Precision Components Suzhou Co Ltd
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Green Precision Components Suzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Green Precision Components Suzhou Co Ltd filed Critical Green Precision Components Suzhou Co Ltd
Priority to CN201310375493.2A priority Critical patent/CN103499316A/en
Publication of CN103499316A publication Critical patent/CN103499316A/en
Pending legal-status Critical Current

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Abstract

The invention provides an inspection device for detecting the depth of oil grooves of a valve sleeve. The inspection device comprises a base. A locating shaft is arranged on the base, two or four or eight strip-shaped protruding ribs are evenly distributed on the peripheral surface of the locating shaft, a pneumatic measuring head nozzle hole is formed in the front end face of each strip-shaped protruding rib, openings of the pneumatic measuring head nozzle holes are opposite to the bottoms of the oil grooves, and the pneumatic measuring head nozzle holes are connected with pneumatic measuring instruments. When the inspection device is used, the valve sleeve to be detected is arranged on the locating shaft in a sleeved mode, the strip-shaped protruding ribs on the locating shaft are inserted into the oil grooves of the valve sleeve, gas ejected through the pneumatic measuring head nozzle holes can act on the bottoms of the oil grooves, in this way, the distance between the front end faces of the strip-shaped protruding ribs and the bottoms of the oil grooves can be calculated, and then whether the depth of the oil grooves in the valve sleeve meets recruitments can be judged. By using the inspection device, whether the depth of the oil grooves of the valve sleeve meets the product requirements can be quickly detected, and the quality of outgoing products can be effectively improved.

Description

Cubing for detection of the valve pocket oil groove degree of depth
Technical field
The present invention relates to a kind of cubing, particularly relate to a kind of cubing for detection of the valve pocket oil groove degree of depth.
Background technology
Automobile steering system mainly comprises steering wheel, input shaft, torque arm and power steering hydraulic system.The power steering valve of power steering hydraulic system comprises valve pocket and valve two parts, on valve pocket and spool, is equipped with oilhole, and the oilhole of valve pocket and diverse location on spool is interconnected and can forms the different closed circuit of flow direction.Steering wheel is connected with torque arm by input shaft, and the other end of torque arm is connected with spool.When rotating steering wheel, moment of torsion is passed to torque arm by input shaft, torque arm drives Spool rotating, make spool and valve pocket generation relative motion, will change like this break-make relation of oil duct between valve pocket and spool and the flow direction of hydraulic oil, and then rotate towards different directions by hydraulic gear band motor car wheel.The inner peripheral surface of valve pocket is provided with eight equally distributed oil grooves, and oil groove coordinates with the spool outer peripheral face oil circuit that forms hydraulic oil.
The degree of depth of valve pocket finishing bathtray can cause certain influence to the oil pressure of each oil circuit, so just likely further has influence on the working condition of automobile steering system.Therefore in the valve pocket production run, after the oil groove on valve pocket machines, preferably can the degree of depth of valve pocket oil groove be detected, whether met the requirements with the quality of determining valve pocket.Because oil groove is positioned on the inner peripheral surface of valve pocket and valve pocket is circular configuration, the depth step that adopts existing cubing to detect the valve pocket oil groove is comparatively loaded down with trivial details, and the valve pocket be difficult to producing is tested one by one, so just likely subsequent production is brought to hidden danger of quality.
Summary of the invention
The shortcoming of prior art, the object of the present invention is to provide a kind of cubing that can be detected the valve pocket oil groove degree of depth fast in view of the above.
Reach for achieving the above object other relevant purposes, the invention provides a kind of cubing for detection of the valve pocket oil groove degree of depth, the inner peripheral surface of described valve pocket is provided with eight equally distributed oil grooves, this cubing comprises a base, described base is provided with a locating shaft, be provided with two on the outer peripheral face of described locating shaft, or eight equally distributed strip convex tendons article four, the front end face of described strip convex tendon is provided with a plug jet nozzle bore, when described valve pocket is enclosed within on described locating shaft, the opening of described plug jet nozzle bore is relative with the bottom of oil groove, described plug jet nozzle bore is connected with pneumatic measuring instrument.
Preferably, the xsect of described strip convex tendon is trapezoidal, and described locating shaft diameter is identical with the valve pocket internal diameter, and the thickness of described strip convex tendon is less than the degree of depth of valve pocket finishing bathtray.
Preferably, described pneumatic measuring instrument is the float type pneumatic measuring instrument.
Preferably, described strip convex tendon is provided with a vertical air hole, and described plug jet nozzle bore is connected with pneumatic measuring instrument by described vertical air hole.
As mentioned above, cubing for detection of the valve pocket oil groove degree of depth of the present invention has following beneficial effect: this cubing in use, the valve pocket that will detect is enclosed within on locating shaft, strip convex tendon on locating shaft is inserted in the oil groove of valve pocket, plug jet nozzle bore on the strip convex tendon is connected with pneumatic measuring instrument, and the plug jet nozzle bore is relative with the bottom of oil groove, gas by the ejection of plug jet nozzle bore just can act on the oil groove bottom, so just can calculate the distance of this strip convex tendon front end face apart from the oil groove bottom, and then whether the oil groove degree of depth that can judge in valve pocket meets the requirements.But adopt the degree of depth of this cubing fast detecting valve pocket oil groove whether to meet product requirement, can effectively improve the quality of the product that dispatches from the factory.
The accompanying drawing explanation
The one-piece construction schematic diagram that Fig. 1 is the embodiment of the present invention
The structural representation that Fig. 2 is embodiment of the present invention locating shaft.
The connection diagram that Fig. 3 is embodiment of the present invention strip convex tendon and pneumatic measuring instrument.
Fig. 4 is the structural representation that the embodiment of the present invention is used state.
The element numbers explanation
1 base
2 locating shafts
3 strip convex tendons
31 vertical air holes
32 plug jet nozzle bores
33 front end faces
4 valve pockets
5 pneumatic measuring instruments
Embodiment
Below by particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this instructions.
Refer to Fig. 1 to Fig. 4.Notice, appended graphic the illustrated structure of this instructions, ratio, size etc., equal contents in order to coordinate instructions to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this instructions, quote as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the present invention.
The invention provides a kind of cubing for detection of the valve pocket oil groove degree of depth, for detection of the inner peripheral surface of valve pocket be provided with eight equally distributed oil grooves, the purpose of using this cubing is whether the degree of depth in order to detect eight oil grooves on the valve pocket inner peripheral surface conforms to quality requirements.
As shown in Figure 1, 2, 3, this cubing comprises a base 1, is provided with a locating shaft 2 on base 1, four equally distributed strip convex tendons 3 on the outer peripheral face of locating shaft 2.Be provided with a plug jet nozzle bore 32 on the front end face 33 of strip convex tendon 3, when valve pocket is enclosed within on locating shaft, the opening of plug jet nozzle bore 32 is relative with the bottom of valve pocket finishing bathtray, strip convex tendon 3 is provided with a vertical air hole 31, and the plug jet nozzle bore 32 on each strip convex tendon is by being connected with each self-corresponding pneumatic measuring instrument 5 corresponding vertically air hole 31.For the ease of observing numerical value, pneumatic measuring instrument 5 adopts the float type pneumatic measuring instrument, upper limit mark and lower limit mark so only need be set on the taper glass of float type pneumatic measuring instrument, directly observe whether buoy surpasses upper limit mark and the lower limit mark can judge whether the degree of depth of oil groove meets the demands.
As shown in Figure 4, this cubing in use, the valve pocket 4 that will detect is enclosed within on locating shaft 2, four strip convex tendons 3 on locating shaft 2 are inserted in respectively in four oil grooves spaced apart of valve pocket 4, for the ease of strip convex tendon 3, insert, the xsect of strip convex tendon 3 can be set to trapezoidal, and locating shaft 2 diameters are identical with the valve pocket internal diameter, and the thickness of strip convex tendon 3 is less than the degree of depth of valve pocket finishing bathtray.Like this when valve pocket 4 is enclosed within on locating shaft 2, the valve pocket 4 axle chucking that can be positioned, and also can leave gap between the bottom of the front end face 33 of strip convex tendon 3 and oil groove.
Plug jet nozzle bore 32 on the strip convex tendon is connected with pneumatic measuring instrument 5, the gas that plug jet nozzle bore 32 outwards sprays is applied to the bottom of oil groove, the relation that pneumatic measuring instrument 5 can be in proportion according to gas flow, pressure and relative gap, and the relation that gaseous tension and flow become to send out ratio calculates these strip convex tendon 3 front end faces 33 apart from the distance between the oil groove bottom, this distance is added to the thickness of strip convex tendon 3 can determine the degree of depth of these four valve pocket oil grooves.Then valve pocket is taken off from locating shaft 2, valve pocket is enclosed within on locating shaft 2 again after rotating 45 °, can determine the degree of depth of other four valve pocket oil grooves.
On locating shaft 2, the number of strip convex tendon 3 can also be set to two or eight, and two strip convex tendons 3 are set on locating shaft needs four ability that the depth detection of this valve pocket oil groove is completed; If eight strip convex tendons 3 are set on locating shaft only need, once just the depth detection of this valve pocket oil groove can be completed.But adopt the degree of depth of this cubing fast detecting valve pocket oil groove whether to meet product requirement, can effectively improve the quality of the product that dispatches from the factory.So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, be modified or be changed above-described embodiment.Therefore, such as in affiliated technical field, have and usually know that the knowledgeable, not breaking away from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.

Claims (4)

1. the cubing for detection of the valve pocket oil groove degree of depth, the inner peripheral surface of described valve pocket is provided with eight equally distributed oil grooves, it is characterized in that: this cubing comprises a base, described base is provided with a locating shaft, be provided with two, four or eight equally distributed strip convex tendons on the outer peripheral face of described locating shaft, the front end face of described strip convex tendon is provided with a plug jet nozzle bore, when described valve pocket is enclosed within on described locating shaft, the opening of described plug jet nozzle bore is relative with the bottom of oil groove, and described plug jet nozzle bore is connected with pneumatic measuring instrument.
2. the cubing for detection of the valve pocket oil groove degree of depth according to claim 1, it is characterized in that: the xsect of described strip convex tendon is trapezoidal, described locating shaft diameter is identical with the valve pocket internal diameter, and the thickness of described strip convex tendon is less than the degree of depth of valve pocket finishing bathtray.
3. the cubing for detection of the valve pocket oil groove degree of depth according to claim 1, it is characterized in that: described pneumatic measuring instrument is the float type pneumatic measuring instrument.
4. the cubing for detection of the valve pocket oil groove degree of depth according to claim 1, it is characterized in that: described strip convex tendon is provided with a vertical air hole, and described plug jet nozzle bore is connected with pneumatic measuring instrument by described vertical air hole.
CN201310375493.2A 2013-08-26 2013-08-26 Inspection device for detecting depth of oil grooves of valve sleeve Pending CN103499316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310375493.2A CN103499316A (en) 2013-08-26 2013-08-26 Inspection device for detecting depth of oil grooves of valve sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310375493.2A CN103499316A (en) 2013-08-26 2013-08-26 Inspection device for detecting depth of oil grooves of valve sleeve

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CN103499316A true CN103499316A (en) 2014-01-08

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1755324A (en) * 2004-09-30 2006-04-05 洛阳轴承集团有限公司 Pneumatic instrument for measuring inside diameter of thin-wall bearing
JP2008298422A (en) * 2007-05-29 2008-12-11 Nidec Tosok Corp Internal diameter measuring nozzle
CN101446487A (en) * 2008-12-11 2009-06-03 长安汽车(集团)有限责任公司 Device for measuring parameters of plum blossom petal-shaped inner chamber of product
CN101451828A (en) * 2008-12-19 2009-06-10 上海诺玛液压系统有限公司 Valve sleeve hole measuring frock of electrohydraulic servo valve
CN201787928U (en) * 2010-08-27 2011-04-06 广东鸿特精密技术股份有限公司 High-precision pneumatic gauge for measuring bore diameter
CN202350755U (en) * 2011-12-07 2012-07-25 重庆志成机械股份有限公司 Detection device for detecting valve seat sealing surface and valve guide pipe of engine
CN202847803U (en) * 2012-10-23 2013-04-03 浙江龙纪汽车零部件有限公司 Steering engine valve sleeve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1755324A (en) * 2004-09-30 2006-04-05 洛阳轴承集团有限公司 Pneumatic instrument for measuring inside diameter of thin-wall bearing
JP2008298422A (en) * 2007-05-29 2008-12-11 Nidec Tosok Corp Internal diameter measuring nozzle
CN101446487A (en) * 2008-12-11 2009-06-03 长安汽车(集团)有限责任公司 Device for measuring parameters of plum blossom petal-shaped inner chamber of product
CN101451828A (en) * 2008-12-19 2009-06-10 上海诺玛液压系统有限公司 Valve sleeve hole measuring frock of electrohydraulic servo valve
CN201787928U (en) * 2010-08-27 2011-04-06 广东鸿特精密技术股份有限公司 High-precision pneumatic gauge for measuring bore diameter
CN202350755U (en) * 2011-12-07 2012-07-25 重庆志成机械股份有限公司 Detection device for detecting valve seat sealing surface and valve guide pipe of engine
CN202847803U (en) * 2012-10-23 2013-04-03 浙江龙纪汽车零部件有限公司 Steering engine valve sleeve

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Application publication date: 20140108