CN204007431U - A kind of piston dovetail groove datum diameter is measured cubing - Google Patents
A kind of piston dovetail groove datum diameter is measured cubing Download PDFInfo
- Publication number
- CN204007431U CN204007431U CN201420410298.9U CN201420410298U CN204007431U CN 204007431 U CN204007431 U CN 204007431U CN 201420410298 U CN201420410298 U CN 201420410298U CN 204007431 U CN204007431 U CN 204007431U
- Authority
- CN
- China
- Prior art keywords
- pad
- piston
- dovetail groove
- crossbeam
- sheet
- 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.)
- Active
Links
Abstract
The utility model provides a kind of piston dovetail groove datum diameter to measure cubing, comprises the support that is provided with crossbeam; Be separately positioned on the first back up pad and second back up pad at crossbeam two ends; Dial gauge, its sleeve is arranged on the first back up pad away from one end of crossbeam; Be arranged on the second back up pad away from the backstay of one end of crossbeam, the central axis conllinear of its central axis and sleeve; What can contact with the two side at the datum width place of dovetail groove one end of tested piston first measures sheet, and it is arranged on dial gauge and is connected near one end of placed cavity and with the gauge head of dial gauge; The second measurement sheet that can contact with the two side at dovetail groove other end datum width place, it is arranged on backstay near one end of placed cavity, two thickness of measuring sheet are the datum width of dovetail groove and have predeterminable range between the two, the datum diameter of the dovetail groove that predeterminable range is standard piston.This piston dovetail groove datum diameter is measured cubing and has been reduced measuring error, and then has improved measuring accuracy.
Description
Technical field
The utility model relates to Piston Machining technical field, more particularly, relates to a kind of piston dovetail groove datum diameter and measures cubing.
Background technology
Piston is an important part in engine, because piston dovetail groove diameter is difficult to measure, so need to measure the datum diameter D1 of piston dovetail groove during machining piston.Datum diameter D1 refers to that piston dovetail groove is at the diameter at datum width H place.
In order to reach measuring accuracy, the current normal datum diameter D1 that adopts milscale and two cylinder metering pins to measure dovetail groove, concrete measuring method is: the datum width H place that a cylinder metering pin is positioned to one end of piston dovetail groove, make the dovetail groove sidewall contact at itself and this place, and the gage button of milscale is resisted against to the outside of this cylinder metering pin, make another cylinder metering pin be positioned at the datum width H place of the other end of piston dovetail groove simultaneously, make the dovetail groove sidewall contact at this cylinder metering pin and this place, and the measuring staff of clock gauge is resisted against to the outside of this cylinder metering pin, now two cylinder metering pins lay respectively at the two ends of a diameter of dovetail groove, the diameter outer end that reading by milscale can obtain two cylinder metering pins is apart from M, pass through M, the diameter of cylinder metering pin and the relation of D1 can calculate piston dovetail groove at the datum diameter D1 at equivalent width H place.
Due to cylinder metering pin surface smoother, coating butter on the metering pin of being everlasting in measuring process, to help the installation of metering pin and to fix, prevents that metering pin from coming off.But, in measuring process, the position of two metering pin placements need be consistent, and above-mentioned butter can cause the position of metering pin that deviation occurs, and, during measurement, the contact area of metering pin and piston dovetail groove is larger, and more difficult location also can cause metering pin position that deviation occurs, increase measuring error, affect measuring accuracy.
In addition, above-mentioned measuring method need to be located two cylinder metering pins and milscale when reading simultaneously, is not easy to operation and reading, causes detection efficiency lower.
In sum, how providing a kind of piston dovetail groove datum diameter to measure cubing, to reduce measuring error, and then improve measuring accuracy, is current those skilled in the art technical matterss urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of piston dovetail groove datum diameter to measure cubing, to reduce measuring error, and then improves measuring accuracy.
In order to achieve the above object, the utility model provides following technical scheme:
Piston dovetail groove datum diameter is measured a cubing, comprising:
Support, is provided with the crossbeam that along continuous straight runs arranges on described support;
Be arranged on first back up pad of described crossbeam one end;
Be arranged on the second back up pad of the described crossbeam other end, described the second back up pad and described the first back up pad are oppositely arranged and have the placed cavity slipping into for tested piston between the two;
Dial gauge, the sleeve of described dial gauge is arranged on described the first back up pad away from one end of described crossbeam;
Backstay, described backstay is arranged on described the second back up pad away from one end of described crossbeam, the central axis conllinear of the central axis of described backstay and described sleeve;
What can contact with the two side at the datum width place of dovetail groove one end of described tested piston first measures sheet, and described first measures sheet is arranged on described dial gauge and is connected near one end of described placed cavity and with the gauge head of described dial gauge;
What can contact with the two side at the datum width place of the described dovetail groove other end second measures sheet, described second measures sheet is arranged on described backstay near one end of described placed cavity, the described first thickness of measuring sheet and described the second measurement sheet is the datum width of described dovetail groove and is located in the same horizontal plane, and there is predeterminable range between the two, the datum diameter of the dovetail groove that described predeterminable range is standard piston.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, described support comprises for placing the base of described tested piston and being arranged on described base and the longitudinal bracing part of vertically arranging, on described longitudinal bracing part, be provided with the piece that along continuous straight runs is arranged, described crossbeam is arranged on a described piece.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, described longitudinal bracing part comprises all longitudinal supporting plate and the swingle vertically arranging, and described swingle can be rotatably set in the locating piece also on described longitudinal supporting plate and on described longitudinal supporting plate with swingle described in axial location; On described longitudinal supporting plate, offer guide chute, described piece can vertically be slidably arranged in described guide chute and with described swingle threaded engagement.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, offers the pickup groove that along continuous straight runs arranges on described piece, and described crossbeam is fixed in described pickup groove.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, two location risers that described support also comprises the positioning plate being arranged on described base and is arranged on described positioning plate and vertically arranges, described location riser can contact with tested outside piston respectively, and described location riser is arranged on described positioning plate near one end of described crossbeam.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, and described sleeve is arranged in described the first back up pad by guide, and described guide comprises:
The positioning tube with guide through hole, described sleeve is arranged on described guide through hole away from one end of described placed cavity, and be provided with the first mounting hole in described the first back up pad, described positioning tube through described the first mounting hole, is provided with in described the first back up pad for compressing the first trip bolt of described positioning tube slidably;
By two orienting sleeves, be slidably disposed on the guide pole in described guide through hole, one end of described guide pole and described gauge head offset, and other end end and described first is measured sheet and is connected;
Be arranged on described guide through hole near the locating ring of one end of described placed cavity, described guide pole is slidably through described locating ring, and on described guide pole, is also provided with and is positioned at described locating ring away from the location shaft shoulder of a side of described placed cavity;
Be set in the spring on described guide pole, one end of described spring and the described location shaft shoulder offset, and the other end and described locating ring offset.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, and described the first measurement sheet and described second is measured sheet and is cylindrical;
Described guide also comprises for supporting described first to be measured the first locating piece of sheet and can measure spacing the first dog screw on described the first locating piece of sheet by described first, described first measures sheet is rotatably set on described the first dog screw, and the central axis of described the first dog screw and described first is measured the central axis conllinear of sheet; Wherein, described the first locating piece is connected with one end of the close described placed cavity of described guide pole by coupling block, described coupling block two ends have respectively the first connecting hole and the second connecting hole, by the first pan head screw, by described guide pole, the one end near described placed cavity is locked in described the first connecting hole described coupling block, and by the second pan head screw, by described the first locating piece, one end end away from described placed cavity is locked in described the second connecting hole;
One end end of the close described placed cavity of described backstay is also provided with for supporting described second and measures the second locating piece of sheet and can measure spacing the second dog screw on described the second locating piece of sheet by described second, described second measures sheet is rotatably set on described the second dog screw, and the central axis of described the second dog screw and described second is measured the central axis conllinear of sheet.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, the head of described the first dog screw is greater than the thickness of described the first measurement sheet apart from the distance of described the first locating piece, the head of described the second dog screw is greater than the thickness of described the second measurement sheet apart from the distance of described the second locating piece.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, in described the second back up pad, be provided with the second mounting hole, described backstay through described the second mounting hole, is provided with in described the second back up pad for compressing the second trip bolt of described backstay slidably;
And in described the first mounting hole, be arranged with the first resilient sleeve, described positioning tube is slidably through described the first resilient sleeve; In described the second mounting hole, be arranged with the second resilient sleeve, described backstay is slidably through described the second resilient sleeve.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, and described the first back up pad is fixed on described crossbeam by the 3rd trip bolt, when described the 3rd trip bolt unscrews described in the first back up pad can move along the length direction of described crossbeam; On the end face of described the first back up pad near described crossbeam, offer the first chute being slidably matched with described crossbeam, in described the first back up pad, be also provided with the first parallels that is positioned at described the first chute and is blocked in described crossbeam outside, and described the 3rd trip bolt is fastened on described the first parallels and compresses described crossbeam; Between described the first parallels and described the first back up pad, by the first finger setting and by the first machine screw with oval countersunk fillister head, be fixedly connected with;
Described the second back up pad is fixed on described crossbeam by the 4th trip bolt, when described the 4th trip bolt unscrews described in the second back up pad can move along the length direction of described crossbeam; On the end face of described the second back up pad near described crossbeam, offer the second chute being slidably matched with described crossbeam, in described the second back up pad, be also provided with the second parallels that is positioned at described the second chute and is blocked in described crossbeam outside, and described the 4th trip bolt is fastened on described the second parallels and compresses described crossbeam; Between described the second parallels and described the second back up pad, by the second finger setting and by the second machine screw with oval countersunk fillister head, be fixedly connected with.
From above-mentioned technical scheme, can find out, the piston dovetail groove datum diameter that the utility model provides is measured cubing and is comprised support, the first back up pad, the second back up pad, dial gauge, backstay, the first measurement sheet and the second measurement sheet; Wherein, on support, be provided with the crossbeam that along continuous straight runs arranges; The first back up pad is arranged on one end of crossbeam; The second back up pad is arranged on the other end of crossbeam, and the second back up pad and the first back up pad are oppositely arranged and have the placed cavity slipping into for tested piston between the two; The sleeve of dial gauge is arranged on the first back up pad away from one end of crossbeam; Backstay is arranged on the second back up pad away from one end of crossbeam, the central axis conllinear of the central axis of backstay and sleeve; First measures sheet can contact with the two side at the datum width place of dovetail groove one end of tested piston, and it is arranged on dial gauge and is connected near one end of placed cavity and with the gauge head of dial gauge; Second measures sheet can contact with the two side at the datum width place of the dovetail groove other end, it is arranged on backstay near one end of placed cavity, the first thickness of measuring sheet and the second measurement sheet is the datum width of dovetail groove and is located in the same horizontal plane, and there is predeterminable range between the two, the datum diameter of the dovetail groove that this predeterminable range is standard piston.It should be noted that, above-mentioned two sizes of measuring sheets should meet the two side at the datum width place that can extend into piston dovetail groove and contact with the two side at the datum width place of dovetail groove; During assembling, make the first measurement sheet and second measure distance between sheet be standard piston (the corresponding check and correction piston of tested piston) dovetail groove datum diameter and dial gauge is returned to zero.
Above-mentioned piston dovetail groove datum diameter is measured cubing when measuring, tested piston is slipped in placed cavity and at two to be measured between sheet, by regulating the position of tested piston that the first measurement sheet is contacted with the two side at the datum width place of dovetail groove one end of tested piston, the second measurement sheet is contacted with the two side at the datum width place of the dovetail groove other end, make two to measure sheets and contact with the two side at the datum width place at the two ends of dovetail groove diameter respectively, now read the maximum changing value of dial gauge, by this value, can determine that the datum diameter of tested piston dovetail groove has or not overproof.
Because above-mentioned dial gauge is arranged in the first back up pad, backstay is arranged in the second back up pad, and first measures sheet is connected with dial gauge, second measures sheet is arranged on backstay, so the first back up pad can be fixed support to the first measurement sheet when measuring, the second back up pad can be fixed support to the second measurement sheet; Therefore the first measurement sheet and the second measurement sheet can not come off in measuring process, without measuring coating butter on sheet, thereby can avoid butter to cause two to measure the deviation that sheet positions occur; And while measuring two to measure sheet less with the contacts area of dovetail groove, convenient location, has reduced to measure the deviation that sheet position occurs, therefore the piston dovetail groove datum diameter that the utility model provides measurement cubing has reduced measuring error, and then has improved measuring accuracy.
In addition, above-mentioned piston dovetail groove datum diameter is measured cubing only need regulate the position of tested piston when measuring, easy to detect, is convenient to reading, has improved detection efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Structural representation when Fig. 1 is prior art measurement piston dovetail groove datum diameter;
Fig. 2 is the vertical view that the piston dovetail groove datum diameter that provides of the utility model embodiment is measured cubing;
Fig. 3 is the cut-open view along A-A line in Fig. 2;
Fig. 4 is the right view that the piston dovetail groove datum diameter that provides of the utility model embodiment is measured cubing;
Fig. 5 is the vertical view of the guide that provides of the utility model embodiment;
Fig. 6 is the first syndeton schematic diagram of measuring sheet and the first locating piece that the utility model embodiment provides.
Embodiment
The utility model embodiment provides a kind of piston dovetail groove datum diameter to measure cubing, has reduced measuring error, and then has improved measuring accuracy.
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 2-6, the piston dovetail groove datum diameter that the utility model embodiment provides is measured cubing and is comprised support 4, the first back up pad 2, the second back up pad 3, dial gauge 8, backstay 14, the first measurement sheet 11 and the second measurement sheet 12; Wherein, on support 4, be provided with the crossbeam 1 that along continuous straight runs arranges; The first back up pad 2 is arranged on one end (being the left end in Fig. 2) of crossbeam 1; The second back up pad 3 is arranged on the other end (being the right-hand member in Fig. 2) of crossbeam 1, and the second back up pad 3 and the first back up pad 2 are oppositely arranged and have the placed cavity slipping into for tested piston between the two; The sleeve of dial gauge 8 is arranged on the first back up pad 2 away from one end (being the lower end of the first back up pad 2 in Fig. 2) of crossbeam 1; Backstay 14 is arranged on the second back up pad 3 away from one end (being the lower end of the second back up pad 3 in Fig. 2) of crossbeam 1, the central axis conllinear of the central axis of backstay 14 and sleeve, can guarantee like this placed cavity size can for tested piston at least half enters, and then reach measurement object; First measures sheet 11 can contact with the two side at the datum width H place of dovetail groove one end of tested piston, and it is arranged on dial gauge 8 and is connected near one end of placed cavity and with the gauge head of dial gauge 8; Second measures sheet 12 can contact with the two side at the datum width H place of the dovetail groove other end, it is arranged on backstay 14 near one end of placed cavity, the first thickness of measuring sheet 11 and the second measurement sheet 12 is the datum width H of dovetail groove and is located in the same horizontal plane, and there is predeterminable range between the two, the datum diameter D1 of the dovetail groove that this predeterminable range is standard piston.It should be noted that, above-mentioned two sizes of measuring sheets should meet the two side at the datum width H place that can extend into piston dovetail groove and contact with the two side at the datum width H place of dovetail groove; During assembling, make the first measurement sheet 11 and second measure distance between sheet 12 be standard piston (the corresponding check and correction piston of tested piston) dovetail groove datum diameter D1 and by dial gauge 8 zeroings.
Above-mentioned piston dovetail groove datum diameter is measured cubing when measuring, tested piston is slipped in placed cavity and at two to be measured between sheet, by regulating the position of tested piston that the first measurement sheet 11 is contacted with the two side at the datum width H place of dovetail groove one end of tested piston, the second measurement sheet 12 is contacted with the two side at the datum width H place of the dovetail groove other end, make two to measure sheets and contact with the two side at the datum width H place at the two ends of dovetail groove diameter respectively, now read the maximum changing value of dial gauge 8, the datum diameter D1 that can determine tested piston dovetail groove by this value has or not overproof.
Because above-mentioned dial gauge 8 is arranged in the first back up pad 2, backstay 14 is arranged in the second back up pad 3, and first measures sheet 11 is connected with dial gauge 8, second measures sheet 12 is arranged on backstay 14, so the first back up pad 2 can be fixed support to the first measurement sheet 11 when measuring, the second back up pad 3 can be fixed support to the second measurement sheet 12; Therefore the first measurement sheet 11 and the second measurement sheet 12 can not come off in measuring process, without measuring coating butter on sheet, thereby can avoid butter to cause two to measure the deviation that sheet positions occur; And while measuring two to measure sheet less with the contacts area of dovetail groove, convenient location, has reduced to measure the deviation that sheet position occurs, therefore the piston dovetail groove datum diameter that the utility model provides measurement cubing has reduced measuring error, and then has improved measuring accuracy.
In addition, above-mentioned piston dovetail groove datum diameter is measured cubing only need regulate the position of tested piston when measuring, easy to detect, is convenient to reading, has improved detection efficiency.
As shown in Figure 4, support 4 comprises the longitudinal bracing part for placing the base of tested piston and being arranged on base and vertically arranging, is provided with the piece 41 that along continuous straight runs is arranged on longitudinal bracing part, and crossbeam 1 is arranged on a piece 41.It should be noted that, the end face of above-mentioned base is the plane that along continuous straight runs extends, and when measuring, tested piston is placed on the end face of base, and the tested piston in convenient location, can guarantee measuring accuracy.Meanwhile, above-mentioned piece 41 and the equal along continuous straight runs setting of crossbeam 1, facilitate the installation of crossbeam 1.And above-mentioned support 4 relatively simple for structure, is convenient to assembling.
Preferably, longitudinal bracing part comprises longitudinal supporting plate and the swingle all vertically arranging, and swingle can be rotatably set in the locating piece also on longitudinal supporting plate and on longitudinal supporting plate with axial location swingle; On longitudinal supporting plate, offer guide chute, piece 41 can vertically be slidably arranged in guide chute and with swingle threaded engagement.Thereby the utility model drives a piece 41 to slide up and down along guide chute by swingle is rotated in locating piece, and then drive crossbeam 1 and two back up pads on it to move up and down, thereby make two upper-lower positions of measuring sheet adjustable, can be applicable to the measurement of the dovetail groove of differing heights, expanded measurement range, the position that simultaneously can prop up piece 41 by adjusting reduces the measuring error that mismachining tolerance is brought, and has improved measuring accuracy.
In one embodiment, offer the pickup groove that along continuous straight runs arranges on a piece 41, crossbeam 1 is fixed in pickup groove.Concrete, this pickup groove be opening towards the U-shaped groove of crossbeam 1, crossbeam 1 and a piece 41 are weldingly connected after crossbeam 1 is placed on to pickup groove, strength of joint is better, can make crossbeam 1 have good support strength.Certainly, above-mentioned crossbeam 1 also can adopt the fixing mode of bolt to be fixed on a piece 41, also crossbeam 1 and a piece 41 can be set to integral structure.
In order further to optimize technique scheme, two location riser (not shown)s that support 4 also comprises the positioning plate being arranged on base and is arranged on positioning plate and vertically arranges, location riser can contact with two positions of tested outside piston respectively.During measurement, first tested piston be placed on positioning plate and the cylindrical of tested piston is contacted with two location risers respectively, now measuring the two side that sheet is just in time positioned at the datum width H place at dovetail groove two ends for two; The utility model utilizes positioning plate that the bottom surface of tested piston is supported and located, utilize two location risers to position the cylindrical of tested piston, can to tested piston, position preferably, avoid tested piston to be subjected to displacement in measuring process simultaneously, thereby can guarantee that measuring sheet for two lays respectively at the two ends of dovetail groove diameter, and then improve measuring accuracy.In addition, the present embodiment is arranged on positioning plate near one end of crossbeam 1 by location riser, one end of the close inner side of positioning plate namely, so, when placing tested piston, can directly tested piston be located to the position of riser along positioning plate parallel slideway, convenient operation, has reduced operating personnel's working strength.Certainly, above-mentioned location riser can also be arranged on outside, now needs tested piston to be vertically placed in placed cavity, and outwards moves to riser place, location by placed cavity, the object of locating to reach same realization.
In the utility model one specific embodiment, sleeve is arranged in the first back up pad 2 by guide 9, and as shown in Figure 5, this guide 9 comprises positioning tube 97, guide pole 91, locating ring 92 and spring 95; Positioning tube 97 has guide through hole, and sleeve is arranged on guide through hole away from one end of described placed cavity, and the concrete screw 98 that passes through is pressed in guide through hole; And in the first back up pad 2, be provided with the first mounting hole, positioning tube 97 through the first mounting hole, is provided with in the first back up pad 2 for compressing the first trip bolt 10 of positioning tube 97 slidably; Guide pole 91 is slidably disposed in above-mentioned guide through hole by two orienting sleeves 96, and two guide cylinders are set in respectively two positions of guide pole 91, and one end and the gauge head of guide pole 91 offset, and the other end and first is measured sheet 11 and is connected; Locating ring 92 is arranged on guide through hole near one end of described placed cavity, and guide pole 91 is slidably through locating ring 92, and on guide pole 91, is also provided with and is positioned at locating ring 92 away from the location shaft shoulder of a side of placed cavity; Spring 95 is set on guide pole 91, and one end of spring 95 offsets with the location shaft shoulder, and the other end and locating ring 92 offset.
Concrete, above-mentioned two measurement sheets all adopt wearing and tearing alloy or wimet to make, and have guaranteed its wearing quality and Measurement sensibility.The present embodiment is passed to guide pole 91 zero errors that move through of measuring sheet the gauge head of dial gauge 8 and then passes to measuring staff by the effect of spring 95 power, it is consistent with guide pole 91 directions that this measures sheet direction of motion, equal direction of motion of parallel and dial gauge 8 measuring staffs, can eliminate the measurement inaccuracy that the angle of the inconsistent generation of direction of motion causes.
The effect of above-mentioned knot by spring 95 power can guarantee to measure sheet and reliably contact with dovetail groove, thereby guarantees the accuracy measured; And guide pole 91 can reset by spring 95 after moving.Above-mentioned two orienting sleeves 96 are specially copper sheathing, can play good guide effect to the slip of guide pole 91, avoid occurring guide pole 91 stuck phenomena, have improved functional reliability.Above-mentioned guide 9 relatively simple for structure strengthened the diameter of guide pole 91, positioning tube 97, more easy processing simultaneously.Interchangeable, the sleeve of above-mentioned dial gauge 8 can also directly be fixed on sleeve in the first back up pad 2.
In order further to improve measuring accuracy, above-mentioned the first measurement sheet 11 and second is measured sheet 12 and is all preferably cylindrical; The contact area of columniform measurement sheet and dovetail groove is less, has further improved positioning precision, has reduced to measure the deviation that sheet position occurs.
As shown in Fig. 5-6, guide 9 also comprise for support the first measurement sheet 11 the first locating piece 93 and can be by spacing the first dog screw 16 on the first locating piece 93 of the first measurement sheet 11, first measures sheet 11 is rotatably set on the first dog screw 16, and the central axis of the first dog screw 16 and first is measured the central axis conllinear of sheet 11.Further, as shown in Figure 2, one end of the close placed cavity of backstay 14 be also provided with for support the second measurement sheet 12 the second locating piece and can be by spacing the second dog screw on the second locating piece of the second measurement sheet 12, second measures sheet 12 is rotatably set on the second dog screw, and the central axis of the second dog screw and second is measured the central axis conllinear of sheet 12.In measuring process, to measure sheets and rotate along dovetail groove around self axis for above-mentioned two, the friction force being subject to is less, and even wearing, can reduce measuring error, and measuring accuracy is higher.
Preferably, the first locating piece 93 is connected with one end of the close placed cavity of guide pole 91 by coupling block 94, coupling block 94 two ends have respectively the first connecting hole and the second connecting hole, by the first pan head screw, by guide pole 91, the one end near placed cavity is locked in the first connecting hole coupling block 94, and by the second pan head screw, by the first locating piece 93, the one end away from placed cavity is locked in the second connecting hole.Concrete, the first locating piece 93 has with guide pole 91 near the identical shaft part of one end shape of placed cavity, identical and the coaxial line of the size of above-mentioned two connecting holes, can guarantee the accuracy of the first locating piece 93 installation sites, and then improved the first accuracy of measuring sheet 11 positions.Meanwhile, above-mentioned coupling block 94 relatively simple for structure, is convenient to assembling.
In order further to optimize technique scheme, the head of the first dog screw 16 is greater than the thickness of the first measurement sheet 11 apart from the distance of the first locating piece 93, and the head of the second dog screw is greater than the thickness of the second measurement sheet 12 apart from the distance of the second locating piece.So, measure the sheet dog screw clearance fit corresponding with it and realized the turnability of measuring sheet, and dog screw has spacing a with measurement sheet after tightening, as shown in Figure 6, so, in measuring process, measure sheet and can, according to joining the different of contact from dovetail groove and automatically adjusting up and down, improve measuring accuracy.
Preferably, above-mentioned piston dovetail groove datum diameter is measured in cubing, in the second back up pad 3, is provided with the second mounting hole, and backstay 14 through the second mounting hole, is provided with in the second back up pad 3 for compressing the second trip bolt 13 of backstay 14 slidably; And in the first mounting hole, be arranged with the first resilient sleeve, positioning tube 97 is slidably through the first resilient sleeve; In the second mounting hole, be arranged with the second resilient sleeve, backstay 14 is slidably through the second resilient sleeve.The utility model plays guide effect by the first resilient sleeve to the slip of positioning tube 97, by the second resilient sleeve, the slip of backstay 14 is played to guide effect, thereby can guarantee the collinearity of sleeve and backstay 14, has guaranteed measuring accuracy.And first after trip bolt 10 and the locking of the second trip bolt 13, the friction force of above-mentioned two resilient sleeve respectively and between positioning tube 97 and backstay 14 is larger, can further improve the steadiness of positioning tube 97 and backstay 14, makes cubing measurement result more reliable.
Concrete, the first resilient sleeve and the second resilient sleeve are copper sheathing, and this copper sheathing obtains by blue or green phosphor-copper processing, and elasticity is better, and wear-resisting, has extended serviceable life.
As shown in Figure 2, the first back up pad 2 is fixed on crossbeam 1 by the 3rd trip bolt 6, and when the 3rd trip bolt 6 unscrews, the first back up pad 2 can move along the length direction of crossbeam 1; On the end face of the first back up pad 2 near crossbeam 1, offer the first chute being slidably matched with crossbeam 1, in the first back up pad 2, be also provided with the first parallels 15 that is positioned at the first chute and is blocked in crossbeam 1 outside, and the 3rd trip bolt 6 is fastened on the first parallels 15 and compresses crossbeam 1; Between the first parallels 15 and the first back up pad 2 by the first pin 5 location and be fixedly connected with by the first machine screw with oval countersunk fillister head 7;
The second back up pad 3 is fixed on crossbeam 1 by the 4th trip bolt, and when the 4th trip bolt unscrews, the second back up pad 3 can move along the length direction of crossbeam 1; On the end face of the second back up pad 3 near crossbeam 1, offer the second chute being slidably matched with crossbeam 1, in the second back up pad 3, be also provided with the second parallels that is positioned at the second chute and is blocked in crossbeam 1 outside, and the 4th trip bolt is fastened on the second parallels and compresses crossbeam 1; Between the second parallels and the second back up pad 3, by the second finger setting and by the second machine screw with oval countersunk fillister head, be fixedly connected with.
During assembling, first the first back up pad 2 and the second back up pad 3 are all applied on crossbeam 1, two parallels are separately fixed in the first back up pad 2 and the second back up pad 3, by the first machine screw with oval countersunk fillister head 7, make the first back up pad 2 be locked at the left end of crossbeam 1, by the second machine screw with oval countersunk fillister head, be locked at the right-hand member of crossbeam 1; According to the corresponding check and correction piston of tested piston size, adjust behind the position of two back up pads, with the 3rd trip bolt 6 and the 4th trip bolt, lock the first back up pad 2 and the second back up pad 3; In backstay 14 being penetrated to this copper sheathing after copper sheathing is inserted in the second back up pad 3 lower ends and with the second trip bolt 13, lock; In the first back up pad 2 lower ends, insert after copper sheathing, guide 9 is assembled and penetrated in this copper sheathing and with the first trip bolt 10 lockings, then the first locating piece 93 is connected with the first pan head screw and the second pan head screw and is locked by coupling block 94 with guide pole 91.
First the utility model selects the measurement sheet with tested piston dovetail groove dimension when application; Before measurement, check and correction piston is put into two to be measured between sheet, regulate the backstay 14 in the second back up pad 3, after being contacted with dovetail groove, the second measurement sheet 12 locks with the second trip bolt 13, after regulating positioning tube 97 in the first back up pad 2 that the first measurement sheet 11 is contacted with dovetail groove, with the first trip bolt 10 lockings, take and proofread piston as standard is by dial gauge 8 zeroings; During measurement, shift tested piston onto two and measure between sheet, read dial gauge 8 maximum changing values overproof to determine that tested piston has or not, this detection method is easy to detect and precision is high, efficiency is high.
And, distance between above-mentioned the first back up pad 2 and the second back up pad 3 can also be adjusted according to the size of the tested piston of reality, and then make two distances of measuring between sheet adjustable, simultaneously also can be by making backstay 14 and the slip of positioning tube 97 in resilient sleeve adjust distance between the two, and then two distances of measuring between sheet of adjustment, so above-mentioned piston dovetail groove datum diameter is measured cubing, can measure the dovetail groove datum diameter of different size, and then improve versatility.
In addition, measure sheets and can guarantee, at peak place, tested piston both sides, during measurement, need not adjust after by the adjustment of check and correction piston for above-mentioned two, promote the deviate that tested piston reads dial gauge 8 relative zero-bits and just can obtain datum diameter, detection efficiency is higher.And the method that obtains measuring diameter by the deviate with check and correction piston can reduce measuring error, and measuring accuracy is high.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. piston dovetail groove datum diameter is measured a cubing, it is characterized in that, comprising:
Support (4), is provided with the crossbeam (1) that along continuous straight runs arranges on described support (4);
Be arranged on first back up pad (2) of described crossbeam (1) one end;
Be arranged on second back up pad (3) of described crossbeam (1) other end, described the second back up pad (3) and described the first back up pad (2) are oppositely arranged and have the placed cavity slipping into for tested piston between the two;
Dial gauge (8), the sleeve of described dial gauge (8) is arranged on described the first back up pad (2) away from one end of described crossbeam (1);
Backstay (14), described backstay (14) is arranged on described the second back up pad (3) away from one end of described crossbeam (1), the central axis of described backstay (14) and the central axis conllinear of described sleeve;
What can contact with the two side at the datum width place of dovetail groove one end of described tested piston first measures sheet (11), and described first measures sheet (11) is arranged on described dial gauge (8) near one end of described placed cavity and is connected with the gauge head of described dial gauge (8);
What can contact with the two side at the datum width place of the described dovetail groove other end second measures sheet (12), described second measures sheet (12) is arranged on described backstay (14) near one end of described placed cavity, the described first thickness of measuring sheet (11) and described the second measurement sheet (12) is the datum width of described dovetail groove and is located in the same horizontal plane, and there is predeterminable range between the two, the datum diameter of the dovetail groove that described predeterminable range is standard piston.
2. piston dovetail groove datum diameter as claimed in claim 1 is measured cubing, it is characterized in that, described support (4) comprises for placing the base of described tested piston and being arranged on described base and the longitudinal bracing part of vertically arranging, on described longitudinal bracing part, be provided with the piece (41) that along continuous straight runs is arranged, described crossbeam (1) is arranged on a described piece (41).
3. piston dovetail groove datum diameter as claimed in claim 2 is measured cubing, it is characterized in that, described longitudinal bracing part comprises all longitudinal supporting plate and the swingle vertically arranging, and described swingle can be rotatably set in the locating piece also on described longitudinal supporting plate and on described longitudinal supporting plate with swingle described in axial location; On described longitudinal supporting plate, offer guide chute, described piece (41) can vertically be slidably arranged in described guide chute and with described swingle threaded engagement.
4. piston dovetail groove datum diameter as claimed in claim 3 is measured cubing, it is characterized in that, offers the pickup groove that along continuous straight runs arranges on described piece (41), and described crossbeam (1) is fixed in described pickup groove.
5. piston dovetail groove datum diameter as claimed in claim 2 is measured cubing, it is characterized in that, two location risers that described support (4) also comprises the positioning plate being arranged on described base and is arranged on described positioning plate and vertically arranges, described location riser can contact with tested outside piston respectively, and described location riser is arranged on described positioning plate near one end of described crossbeam (1).
6. piston dovetail groove datum diameter as claimed in claim 1 is measured cubing, it is characterized in that, it is upper that described sleeve is arranged on described the first back up pad (2) by guide (9), and described guide (9) comprising:
The positioning tube (97) with guide through hole, described sleeve is arranged on one end away from described placed cavity of described guide through hole, and be provided with the first mounting hole in described the first back up pad (2), described positioning tube (97) through described the first mounting hole, is provided with in described the first back up pad (2) for compressing first trip bolt (10) of described positioning tube (97) slidably;
By two orienting sleeves (96), be slidably disposed on the guide pole (91) in described guide through hole, one end and the described gauge head of described guide pole (91) offset, and the other end and described first is measured sheet (11) and is connected;
Be arranged on described guide through hole near the locating ring (92) of one end of described placed cavity, described guide pole (91) is slidably through described locating ring (92), and on described guide pole (91), is also provided with and is positioned at described locating ring (92) away from the location shaft shoulder of a side of described placed cavity;
Be set in the spring (95) on described guide pole (91), one end of described spring (95) and the described location shaft shoulder offset, and the other end and described locating ring (92) offset.
7. piston dovetail groove datum diameter as claimed in claim 6 is measured cubing, it is characterized in that, described the first measurement sheet (11) and described second is measured sheet (12) and is cylindrical;
Described guide (9) also comprises for supporting described first to be measured first locating piece (93) of sheet (11) and can measure spacing the first dog screw (16) on described the first locating piece (93) of sheet (11) by described first, described first measures sheet (11) is rotatably set in described the first dog screw (16) above, and the central axis of described the first dog screw (16) and described first is measured the central axis conllinear of sheet (11); Wherein, described the first locating piece (93) is connected with one end of the close described placed cavity of described guide pole (91) by coupling block (94), described coupling block (94) two ends have respectively the first connecting hole and the second connecting hole, by the first pan head screw, by described guide pole (91), the one end near described placed cavity is locked in described the first connecting hole described coupling block (94), and by the second pan head screw, by described the first locating piece (93), the one end away from described placed cavity is locked in described the second connecting hole;
Described backstay (14) is also provided with for supporting the second locating piece of described the second measurement sheet (12) and can measuring spacing the second dog screw on described the second locating piece of sheet (12) by described second near one end of described placed cavity, described second measures sheet (12) is rotatably set on described the second dog screw, and the central axis of described the second dog screw and described second is measured the central axis conllinear of sheet (12).
8. piston dovetail groove datum diameter as claimed in claim 7 is measured cubing, it is characterized in that, the head of described the first dog screw (16) is greater than the thickness of described the first measurement sheet (11) apart from the distance of described the first locating piece (93), the head of described the second dog screw is greater than the thickness of described the second measurement sheet (12) apart from the distance of described the second locating piece.
9. piston dovetail groove datum diameter as claimed in claim 6 is measured cubing, it is characterized in that, in described the second back up pad (3), be provided with the second mounting hole, described backstay (14) through described the second mounting hole, is provided with in described the second back up pad (3) for compressing second trip bolt (13) of described backstay (14) slidably;
And in described the first mounting hole, be arranged with the first resilient sleeve, described positioning tube (97) is slidably through described the first resilient sleeve; In described the second mounting hole, be arranged with the second resilient sleeve, described backstay (14) is slidably through described the second resilient sleeve.
10. the piston dovetail groove datum diameter as described in claim 1-9 any one is measured cubing, it is characterized in that, it is upper that described the first back up pad (2) is fixed on described crossbeam (1) by the 3rd trip bolt (6), when described the 3rd trip bolt (6) unscrews described in the first back up pad (2) can move along the length direction of described crossbeam (1); Described the first back up pad (2) offers near on the end face of described crossbeam (1) the first chute being slidably matched with described crossbeam (1), in described the first back up pad (2), be also provided with the first parallels (15) that is positioned at described the first chute and is blocked in described crossbeam (1) outside, and described the 3rd trip bolt (6) is fastened on described the first parallels (15) and goes up and compress described crossbeam (1); Between described the first parallels (15) and described the first back up pad (2), by the first pin (5), locate and pass through the first machine screw with oval countersunk fillister head (7) and be fixedly connected with;
It is upper that described the second back up pad (3) is fixed on described crossbeam (1) by the 4th trip bolt, when described the 4th trip bolt unscrews described in the second back up pad (3) can move along the length direction of described crossbeam (1); Described the second back up pad (3) offers near on the end face of described crossbeam (1) the second chute being slidably matched with described crossbeam (1), in described the second back up pad (3), be also provided with the second parallels that is positioned at described the second chute and is blocked in described crossbeam (1) outside, and described the 4th trip bolt is fastened on described the second parallels and compresses described crossbeam (1); Between described the second parallels and described the second back up pad (3), by the second finger setting and by the second machine screw with oval countersunk fillister head, be fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410298.9U CN204007431U (en) | 2014-07-24 | 2014-07-24 | A kind of piston dovetail groove datum diameter is measured cubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410298.9U CN204007431U (en) | 2014-07-24 | 2014-07-24 | A kind of piston dovetail groove datum diameter is measured cubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007431U true CN204007431U (en) | 2014-12-10 |
Family
ID=52047418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420410298.9U Active CN204007431U (en) | 2014-07-24 | 2014-07-24 | A kind of piston dovetail groove datum diameter is measured cubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007431U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713440A (en) * | 2015-03-06 | 2015-06-17 | 汉中米克隆工量具实业有限公司 | Quantitative measurement caliper gauge |
| CN105333791A (en) * | 2015-11-13 | 2016-02-17 | 成都发动机（集团）有限公司 | Device for measuring outer diameter of sealing teeth of machining component for high-pressure turbine disc shaft of engine |
| CN106370070A (en) * | 2016-08-15 | 2017-02-01 | 中国工程物理研究院化工材料研究所 | External diameter gauge correcting and positioning measurement structure |
| CN107869941A (en) * | 2016-09-28 | 2018-04-03 | 中际联合（天津）科技有限公司 | Circumference dovetail groove test measuring device |
| CN112857338A (en) * | 2021-01-12 | 2021-05-28 | 武林杰 | Civil engineering project management device |
| CN113701591A (en) * | 2021-08-11 | 2021-11-26 | 东风柳州汽车有限公司 | Handheld checking fixture for measuring width of window frame guide rail |
-
2014
- 2014-07-24 CN CN201420410298.9U patent/CN204007431U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713440A (en) * | 2015-03-06 | 2015-06-17 | 汉中米克隆工量具实业有限公司 | Quantitative measurement caliper gauge |
| CN105333791A (en) * | 2015-11-13 | 2016-02-17 | 成都发动机（集团）有限公司 | Device for measuring outer diameter of sealing teeth of machining component for high-pressure turbine disc shaft of engine |
| CN105333791B (en) * | 2015-11-13 | 2017-12-12 | 成都发动机（集团）有限公司 | The sealing teeth external diameter measuring device of engine high pressure turbine dish axle processing assembly |
| CN106370070A (en) * | 2016-08-15 | 2017-02-01 | 中国工程物理研究院化工材料研究所 | External diameter gauge correcting and positioning measurement structure |
| CN107869941A (en) * | 2016-09-28 | 2018-04-03 | 中际联合（天津）科技有限公司 | Circumference dovetail groove test measuring device |
| CN112857338A (en) * | 2021-01-12 | 2021-05-28 | 武林杰 | Civil engineering project management device |
| CN113701591A (en) * | 2021-08-11 | 2021-11-26 | 东风柳州汽车有限公司 | Handheld checking fixture for measuring width of window frame guide rail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204007431U (en) | A kind of piston dovetail groove datum diameter is measured cubing | |
| CN202692909U (en) | Hole depth precise measuring instrument | |
| CN102183192A (en) | Device and method for detecting symmetry of key groove | |
| CN103376041A (en) | Tool for detecting position accuracy of crankshaft auxiliary hole and detection method | |
| CN108868166B (en) | Common inclination angle zero component installation positioning ruler in steel structure and use method | |
| AU2012292861A1 (en) | Internal thread micrometer | |
| CN103615960B (en) | External thread coaxality measuring mechanism and measuring method | |
| CN203572358U (en) | Multifunctional comprehensive detecting tool | |
| CN202648592U (en) | Gauge calibration device | |
| CN208125117U (en) | A kind of round rod piece shaft centerline measurement device for engineering survey | |
| CN204007432U (en) | Cubing is measured in a kind of piston ring groove bottom footpath | |
| CN104111018B (en) | High-precision interval measurement device | |
| CN203719610U (en) | External thread coaxiality measuring device | |
| CN202420372U (en) | Pulsation measurement detector for bottom diameter of check ring groove of piston pin hole | |
| CN202676115U (en) | Tool for measuring verticality of connecting rod big end hole axis and plane | |
| CN215725624U (en) | Blind hole depth auxiliary detection tool | |
| CN105043216A (en) | In-box spacing measuring device and method | |
| CN205482672U (en) | Cylinder jacket is beated, for measurement positioner of circularity, axiality | |
| CN102607372A (en) | Piston skirt detecting device | |
| CN204438994U (en) | A kind of electrical contact eccentric measuring set | |
| CN208921035U (en) | A kind of special gauge detecting 38CC cylinder cylinder holes verticality | |
| CN210374862U (en) | Cylinder center measurement auxiliary assembly | |
| CN108253926A (en) | A kind of installation pedestal of strain gauge | |
| CN208333350U (en) | It is a kind of for measuring the device of synchromesh gear hub slide block slot symmetry | |
| CN208832038U (en) | Dial indicator bracket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |