CN102806453B - A kind of locker clamping instrument - Google Patents
A kind of locker clamping instrument Download PDFInfo
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- CN102806453B CN102806453B CN201210291554.2A CN201210291554A CN102806453B CN 102806453 B CN102806453 B CN 102806453B CN 201210291554 A CN201210291554 A CN 201210291554A CN 102806453 B CN102806453 B CN 102806453B
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Abstract
The invention belongs to engine assembly technical field, be specifically related to the locker clamping instrument of engine air valve device.Comprise and press-fit body, for expand folder mandrel and for providing the mandrel springs of mandrel back stretch, mandrel springs press-fits in press-fiting between body and mandrel, it is characterized in that: described locker clamping instrument also comprises: press-fit external round portion for automatically picking up the clamping jaw device of spring base, be installed on and press-fit in body endoporus for controlling the pressing sleeve device of the axial stroke of locker, described pressing sleeve device comprises length and is less than the gland and supporting gland spring that press-fit hole length in body, mandrel is assemblied in the bottom endoporus of gland, gland pressure mounting of the spring is at gland and press-fit between body, for providing the back stretch of gland, describedly press-fit body and include for limiting the descending shoulder of gland.It is high that the present invention has efficiency of assembling, the feature that qualification rate is high.
Description
Technical field
The invention belongs to engine assembly technical field, be specifically related to the locker clamping instrument of engine air valve device.
Background technology
Domestic more existing engine lines, locker, the spring holder assembling of valve mechanism still adopt manual assembly mode: be manually placed on valve by valve spring, spring base, locker, then with manual press-loading instrument, locker, spring holder are press-fit into place, due to the reason of press mounting tool, locker often assembles not in place, needs are manually reprocessed again, and this assembly method production efficiency is low, hand labor intensity large, an assembly qualified rate is not high.The engine line that some automaticities are higher, the assembling of locker realizes automation, but lacks spacing measure due to press mounting tool, still there is the problem that assembly qualified rate is not high, need increase to reprocess station, thus reduce production efficiency, add production cost.
Chinese patent ZL200520034052.7 discloses a kind of assembling pressure head of internal combustion engine air door retainer clamp, and it is by pressure head, is movably placed in the guide post in pressure head hole, spring, the compositions such as tube connector.During work, valve, spring, spring base is in place, and is manually placed in spring base by locker, then uses press mounting tool to press down and makes locker be assembled to engine valve stem annular groove position.There is following problem in this press mounting tool:
1., due to press mounting tool reasons in structure, can only adopt and manually be placed in spring base by locker, production efficiency is low, and labour intensity is large.
2., because press mounting tool does not have position-limit mechanism, cannot ensure that dash forward muscle and engine valve stem annular groove of two lockers aligns simultaneously, there will be " snuff " phenomenon that locker assembling is not in place, manually need reprocess, waste time and energy, increase cost.
Summary of the invention
The object of the invention is to provide a kind of rational in infrastructure, and efficiency of assembling is high, the locker clamping instrument that qualification rate is high.
For achieving the above object, the present invention adopts following technical scheme:
A kind of locker clamping instrument, comprise press-fit body, for expand folder mandrel and for providing the mandrel springs of mandrel back stretch, mandrel springs press-fits in press-fiting between body and mandrel, it is characterized in that:
Described locker clamping instrument also comprises:
Press-fit external round portion for automatically picking up the clamping jaw device of spring base,
Be installed on and press-fit for controlling the pressing sleeve device of the axial stroke of locker in body endoporus,
Described pressing sleeve device comprises length and is less than the gland and supporting gland spring that press-fit hole length in body, and mandrel is assemblied in the bottom endoporus of gland, and gland pressure mounting of the spring is at gland and press-fit between body, for providing the back stretch of gland,
Describedly press-fit body and include for limiting the descending shoulder of gland.
Described gland inside is provided with three shoulder holes, and diameter increases from bottom to top successively.
Described pressing sleeve device includes a spring shim, and mandrel springs is fitted between mandrel and spring shim, and gland pressure mounting of the spring is at spring shim and press-fit between body.
Described gland length with press-fit the difference of hole length in body and be greater than the height of locker.
Describedly press-fit external circle and be axially arranged with the groove that at least three are parallel to its axis, described groove is uniformly distributed along axis, press-fits body top and contains a stop screw, and press-fits body and is threaded, press-fit screw thread place, body top and be provided with shoulder, for limiting pressing sleeve device upward stroke; Described clamping jaw device comprises at least three edges and press-fits the jaw that external circle is evenly arranged, and jaw is arranged on by pin and press-fits in external round axial groove, and jaw spring fitting is in jaw upper blind bore and press-fit between body.
Described clamping jaw device comprises at least three edges and press-fits the jaw that external circle is evenly arranged, described jaw is arranged on by pin and press-fits in external round axial groove, the top of jaw is provided with pin-and-hole, the middle part of jaw is provided with O shape ring recess, jaw is tied as flexible member with one or more O shape circle, the cylindrical press-fiting body has annular groove, for adaptive O shape circle.
Described jaw bottom is provided with draw-in groove, and for clamp springs dish, jaw bottom is provided with intermediate incline, is convenient to jaw and captures spring base.
Describedly press-fit body and jaw and be made into one, described in press-fit on body and have four along the equally distributed jaw of axis.Described mandrel bottom is taper seat or sphere.
The distance of the upper surface of described gland and the lower surface of stop screw is greater than the height about 0 ~ 0.2mm of locker.
Locker clamping instrument of the present invention, primarily of press-fiting body, be assemblied in the jaw press-fited in external round axial groove, with press-fit the sliding gland of joining of body endoporus, mandrel of joining sliding with gland, be configured in the mandrel springs between mandrel and packing ring, be configured in the compositions such as the gland spring between packing ring and stop screw, at least 3 jaws are assemblied in by pin and press-fit in external round axial groove, jaw is evenly arranged along press-fiting body axis, jaw can around pin axis oscillating, jaw top and press-fit between body and be provided with jaw spring, and jaw energy elasticity captures and clamp springs dish; With press-fit the sliding gland of joining of body endoporus, descend the equal limited location of both direction in the axial direction, gland is subject to press-fiting the spacing and not contact spring seat of object table shoulder downwards, gland stroke is upwards subject to the spacing of stop screw, and the lower surface distance of gland upper end and stop screw is greater than the height 0 ~ 0.2mm of locker.The bottom diameter of bore of gland is greater than the diameter of valve.
Tell jaw top be provided with the blind hole of mounting clamp latch spring, the middle part of jaw is provided with pin-and-hole, and jaw bottom is provided with draw-in groove, and for clamp springs seat, jaw bottom is provided with intermediate incline, is convenient to jaw and captures spring base.
Gland inside of telling is provided with three shoulder holes, and diameter increases from top to bottom successively, and bottom diameter of bore is greater than valve diameter, and joins with mandrel is sliding, and middle part endoporus is for installing mandrel springs, and top endoporus is for assembling gland spring; The outer garden of gland is provided with a shoulder, for limiting the axially downward stroke of gland, gland bottom cylindrical with press-fit that body endoporus is sliding joins.
Describedly press-fit external circle and be axially arranged with the groove that at least three are parallel to its axis, three grooves are uniform along axis, the hole and the large end external diameter of spring base that press-fit body lower front part are adaptive, press-fit round and smooth aperture of joining outside body bottom and gland bottom and have suitable numerical value, this numerical value ensures that locker can enter when assembling and can not produce interference, gap again can not be excessive simultaneously, press-fits screw thread place, body top and be provided with step, for limiting the axial stroke upwards of gland.
Jaw material can adopt spring steel, hardness HRC40 ~ 50 after heat treatment.
Institute's mandrel springs of telling and gland spring, after press-fiting body assembling, the elastic force of gland spring is greater than the elastic force of mandrel springs.
Compared with prior art, the beneficial effect of locker clamping instrument of the present invention is:
1. this press mounting tool is provided with jaw, the assembling mode that automation is higher can be adopted: first make locker be placed in spring base by automatic sorting device, multiple press mounting tool is connected with automation equipment, automatically spring base is picked up by jaw, then press mounting tool moves to assembly station, realizes the locker assembling of multiple valve mechanism simultaneously, decreases manual assembly link, reduce hand labor intensity, increase substantially efficiency of assembling.
2. because press mounting tool is provided with gland, gland axially has down suitable spacing, and the axial stroke of two lockers is controlled, and the prominent muscle of two lockers can be made accurately to align with the groove of valve simultaneously, avoid " snuff " phenomenon, an assembly qualified rate is close to 100%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the present invention;
Fig. 2 is the second embodiment of the present invention;
Fig. 3 is the third embodiment of the present invention;
Fig. 4 is the third embodiment B-B sectional view of the present invention.
In figure: press-fit body 1, jaw spring 2, pin 3, jaw 4, mandrel 5, spring base 6, valve 7, valve spring 11, locker 9, gland 10, mandrel springs 8, spring shim 12, gland spring 13, stop screw 14, O type circle 15.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further: as Fig. 1, of the present inventionly press-fit body 1 cylindrical and be axially arranged with three grooves, three grooves are uniform along axis, 3 jaws 4 are assemblied in respectively by pin 3 and press-fit in three grooves of body 1, and three jaw springs 2 are fitted in the blind hole on jaw 4 top respectively and press-fit between body; Mandrel 5 is assemblied in the endoporus of gland 10 bottom, mandrel springs 8 is fitted between mandrel 5 and spring shim 12, spring shim 12 and gland 10 top endoporus matched in clearance, gland spring 13 is fitted between spring shim 12 and stop screw 14, outside gland 10 bottom, round and smooth fitting over press-fits in the endoporus of body 1 bottom, stop screw 14 with press-fit body 1 top and be threaded, and the spacing screw thread shoulder place press-fiting body 1 top; After the assembling of locker clamping instrument, the upper surface of gland 10 and stop screw 14 lower surface must be greater than the height 0 ~ 0.2mm of locker apart from L.
The operation principle of the invention is as follows:
Locker 9 is assembled in the taper hole of spring base 6 by automatic sorting device, by transmitting device, spring base 6 is delivered to below locker clamping instrument, the axis of spring base 6 axis and locker clamping instrument aligns substantially, locker clamping instrument presses down, jaw 4 elasticity captures spring base 6 and makes spring base 6 be clamped in the draw-in groove of jaw 4, locker clamping instrument moves to engine valve assembly station, now valve 7 and valve spring 11 have been assemblied in the cylinder bore of engine, locker clamping instrument presses down, after valve 7 contacts locker 9, locker 9 opposed spring seats 6 is moved up, after locker 9 contacts with mandrel 5, two lockers 9 expand separation along the conical surface of mandrel 5 front end, after locker 9 touches gland 10, under the active force of valve 7, promotion mandrel 5 and gland 10 move up relative to press-fiting body 1, two lockers 9 continue expansion and are separated until valve 7 contacts with mandrel 5 under the conical surface effect of mandrel 5, now two lockers 9 have departed from the taper hole of spring base 6 and have entered in the endoporus of the bottom of pressure shape body 1, gland 10 upper surface contacts with stop screw 14 and stops the motion relative to press-fiting body 1, corresponding two lockers 9 gland 10 spacing under, stopped and the relative motion press-fiting body 1, locker clamping instrument continues to press down, valve 7 continues to promote mandrel 5 and moves upward relative to press-fiting body 1, until the prominent muscle of the groove of valve 7 and locker 9 aligns, locker clamping instrument stops pressing down, then locker clamping instrument upwards lifts, valve spring 11 promotes spring base 6 and moves upward, gland 10 keeps contacting with locker under the resilient force of gland spring 13, the prominent muscle of locker 9 is aligned with the groove of valve 7 all the time, the male cone (strobilus masculinus) that the endoporus conical surface of spring base 6 compresses two lockers 9 inwardly shrinks, until make the prominent muscle of two lockers 9 and the groove of valve 7 fit, so far the assembling of locker 9 is completed.
Above are only a kind of embodiment of elastic suspension grinding equipment of the present invention, the present invention structurally also can have multiple conversion, and such as Fig. 2, Fig. 3 are other two kinds of embodiments of the present invention.
As shown in Figure 2, the front end face of mandrel 5 is spherical structure; Eliminate 3 jaw springs 2, the blind hole on the top of jaw 4 becomes pin-and-hole, and the pin-and-hole in the middle part of jaw becomes O type ring recess, jaw 4 is waled as flexible member with one or more O type circle 15, the cylindrical press-fiting body 1 offers annular groove, and in order to dodge O type circle 15, all the other structures are identical with embodiment one.
As shown in Figure 3 and Figure 4, press-fit body 1 and jaw 4 and be made into one, press-fiting body 1 has four jaws and uniform along axisymmetrical, there is no pin 3 and jaw spring 2, the material press-fiting body 1 adopts spring steel manufacture, and hardness HRC40 ~ 50 after heat treatment, all the other structures are identical with embodiment one.
Be appreciated that locker clamping instrument of the present invention is not limited to the concrete structure of above-described embodiment.Apparent for those of ordinary skills conversion or change shape and all fall into protection scope of the present invention.
Claims (7)
1. a locker clamping instrument, comprise press-fit body (1), for expand locker (9) mandrel (5) and for providing the mandrel springs (8) of mandrel (5) back stretch, mandrel springs (8) press-fits in press-fiting between body (1) and mandrel (5), it is characterized in that:
Described locker clamping instrument also comprises:
Press-fit the clamping jaw device that body (1) cylindrical portion is used for automatically picking up spring base (6),
Be installed on and press-fit for controlling the pressing sleeve device of the axial stroke of locker (9) in body (1) endoporus,
Described pressing sleeve device comprises length and is less than the gland (10) and supporting gland spring (13) that press-fit body (1) interior hole length, mandrel (5) is assemblied in the bottom endoporus of gland (10), gland spring (13) is fitted in gland (10) and press-fits between body (1), for providing the back stretch of gland (10)
Describedly press-fit body (1) and include for limiting the descending shoulder of gland (10);
Described gland (10) inside is provided with three shoulder holes, and diameter increases from bottom to top successively;
Described pressing sleeve device includes a spring shim (12), mandrel springs (8) is fitted between mandrel (5) and spring shim (12), and gland spring (13) is fitted in spring shim (12) and press-fits between body (1); Describedly press-fit body (1) cylindrical and be axially arranged with the groove that at least three are parallel to its axis, described groove is uniformly distributed along axis, press-fit body (1) top and contain a stop screw (14), with press-fit body (1) and be threaded, press-fit screw thread place, body (1) top and be provided with shoulder, for limiting pressing sleeve device upward stroke; Described clamping jaw device comprises at least three edges and press-fits the jaw (4) that body (1) cylindrical is evenly arranged, jaw (4) is arranged on by pin (3) and press-fits in body (1) cylindrical axial groove, and jaw spring (2) is installed on jaw (4) upper blind bore and press-fits between body (1).
2. locker clamping instrument according to claim 1, is characterized in that described gland (10) length is greater than the height of locker (9) with the difference press-fiting body (1) interior hole length.
3. locker clamping instrument according to claim 1, it is characterized in that described clamping jaw device comprises at least three edges and press-fits the jaw (4) that body (1) cylindrical is evenly arranged, described jaw (4) is arranged on by pin (3) and press-fits in body (1) cylindrical axial groove, the top of jaw (4) is provided with pin-and-hole, the middle part of jaw (4) is provided with O shape ring recess, jaw (4) is tied as flexible member with one or more O shape circle, the cylindrical press-fiting body (1) has annular groove, for adaptive O shape circle.
4. locker clamping instrument according to claim 1, it is characterized in that described jaw (4) bottom is provided with draw-in groove, for clamp springs seat (6), jaw (4) bottom is provided with intermediate incline, is convenient to jaw (4) and captures spring base (6).
5. locker clamping instrument according to claim 1, it is characterized in that: described in press-fit body (1) and jaw (4) and be made into one, described in press-fit on body (1) and have four along the equally distributed jaw of axis (4).
6. locker clamping instrument according to claim 1, is characterized in that: described mandrel (5) bottom is taper seat or sphere.
7. locker clamping instrument according to claim 4, is characterized in that: the distance of the upper surface of described gland (10) and the lower surface of stop screw (14) is greater than the height 0 ~ 0.2mm of locker (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291554.2A CN102806453B (en) | 2012-08-16 | 2012-08-16 | A kind of locker clamping instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291554.2A CN102806453B (en) | 2012-08-16 | 2012-08-16 | A kind of locker clamping instrument |
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| Publication Number | Publication Date |
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| CN102806453A CN102806453A (en) | 2012-12-05 |
| CN102806453B true CN102806453B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210291554.2A Active CN102806453B (en) | 2012-08-16 | 2012-08-16 | A kind of locker clamping instrument |
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| CN103213094B (en) * | 2013-04-25 | 2014-11-05 | 无锡艾森保自动化装备有限公司 | Leather-cup rapid press fitting device |
| CN103264270B (en) * | 2013-06-06 | 2015-04-29 | 浙江海洋学院 | Device for orderly supplying sealing rings |
| CN104084925B (en) * | 2014-07-07 | 2015-12-09 | 大连职业技术学院 | Valve spring locker erecting tools |
| CN106475956B (en) * | 2016-11-18 | 2018-05-08 | 安徽江淮汽车集团股份有限公司 | Valve collet pressure head |
| CN108145410B (en) * | 2017-12-28 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of sealing coil installing device and installation method |
| CN108662229B (en) * | 2018-06-25 | 2023-08-11 | 浙江法拉迪电气有限公司 | Pressure release device of oil immersed transformer |
| CN110005743B (en) * | 2019-04-22 | 2023-10-31 | 佛山科学技术学院 | Inflatable sealing equipment of damper |
| CN115625510B (en) * | 2022-11-02 | 2023-06-20 | 长园医疗精密(珠海)有限公司 | Special wire assembly and cup-shaped spring press-fitting mechanism |
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- 2012-08-16 CN CN201210291554.2A patent/CN102806453B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279419A (en) * | 2008-05-21 | 2008-10-08 | 大连智云自动化装备股份有限公司 | Cylinder cap air valve spring cover, locking plate press-loading head |
| CN201267930Y (en) * | 2008-07-21 | 2009-07-08 | 重庆长安汽车股份有限公司 | Engine cylinder head delivery tube pressing device |
| CN101722410A (en) * | 2008-10-28 | 2010-06-09 | 力帆实业(集团)股份有限公司 | Pressure head for mounting engine valve lock clamp |
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| CN102806453A (en) | 2012-12-05 |
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