CN203163658U - Depth testing fixture for spark-plug installation hole of engine cylinder cover - Google Patents
Depth testing fixture for spark-plug installation hole of engine cylinder cover Download PDFInfo
- Publication number
- CN203163658U CN203163658U CN 201320043574 CN201320043574U CN203163658U CN 203163658 U CN203163658 U CN 203163658U CN 201320043574 CN201320043574 CN 201320043574 CN 201320043574 U CN201320043574 U CN 201320043574U CN 203163658 U CN203163658 U CN 203163658U
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- hole
- gauge
- indicating gauge
- cylinder cover
- engine cylinder
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Abstract
The utility model provides a depth testing fixture for a spark-plug installation hole of an engine cylinder cover. The depth testing fixture for the spark-plug installation hole comprises a positioning measuring rod, a bushing, an ejection rod, an indication gauge, an indication-gauge fixed block and a calibration block. One end of the positioning measuring rod is a step shape and a probe is extended from an end face of the end. The bushing is provided with a first hole and a second hole which are coaxially penetrated. Internal diameter of the first hole is larger than internal diameter of the second hole. Flange is mounted on a central part of the ejection rod. The calibration block is provided with a through hole. Internal diameter of the through hole is larger than external diameter of the probe of the positioning measuring rod. The indication gauge is fixed on the indication-gauge fixed block. The indication-gauge fixed block is fixedly connected with one end of the bushing. The push rod of the indication gauge extends into the first hole. The ejection rod and the bushing are slidably matched and is performed position restriction by the flange. A return spring is mounted between the flange and the indication-gauge fixed block. The depth testing fixture provided by the utility model can test the depth of a spark plug having a step surface conveniently and accurately.
Description
Technical field
The utility model relates to the motor car engine field, is specifically related to a kind of cubing of the degree of depth of the engine cylinder cover spark plug mounting hole that is suitable for the test desk scalariform.
Background technology
The spark plug mounting hole degree of depth on the cylinder cap of engine is to need an important indicator controlling in the cylinder cap process, because there is a lot of stepped holes in this hole, deep, on three-dimensional, can't measure, the method that detects the cylinder cap spark-plug hole degree of depth at present is to utilize flat board, bridge plate, vernier depth gauge to measure indirectly, namely the height by cylinder cap deducts top surface of cylinder cover and calculates to the distance of the step of stepped hole, and this measuring method workload is big, and accuracy of detection is low simultaneously; Also having a kind of method in addition also is to measure by location measuring staff and dial gauge, but calibrating mode is different, it detects error has the location measuring staff measuring foozle on the length, calibration error etc., the cubing accuracy of detection is also lower, the manufacturing accuracy of cubing is had relatively high expectations simultaneously, and manufacture difficulty is also bigger.
The utility model content
The purpose of this utility model is to overcome above shortcoming, and a kind of cubing that can make things convenient for, accurately the degree of depth of spark plug mounting hole be measured is provided.
For achieving the above object, the utility model provides following technical scheme:
A kind of engine cylinder cover spark plug mounting hole degree of depth cubing comprises:
Location measuring staff, one end have step shape and extend gauge head from the end face of this end;
Sleeve pipe, it has first hole and second hole of coaxial perforation, and the internal diameter in described first hole is greater than the internal diameter in described second hole;
Push rod has flange in the middle of it;
Indicating gauge;
The indicating gauge fixed block;
Calibration block, described calibration block has through hole, and the internal diameter of described through hole is greater than the external diameter of the gauge head of described location measuring staff;
Described indicating gauge is fixed on the described indicating gauge locating piece, one end of the fixedly connected described sleeve pipe of described indicating gauge locating piece and the push rod of described indicating gauge stretch into described first hole, described push rod and described sleeve pipe are slidingly matched and are spacing by described flange, between described flange and the described indicating gauge locating piece retracing spring are installed.
Selectively, described indicating gauge is fixed on the described indicating gauge fixed block by clamping screw.
Selectively, have resilient sleeve between described indicating gauge and the described indicating gauge fixed block, described resilient sleeve has axial slits.
Selectively, the roughness of two of described calibration block end faces is in Ra0.8.
Selectively, the described sleeve pipe end that do not connect described indicating gauge locating piece polish to roughness in Ra1.6.
The beneficial effects of the utility model are:
At first adopt location measuring staff, calibration block that indicating gauge is carried out school zero, to locate measuring staff then inserts in the spark plug mounting hole, make the end of step shape of location measuring staff be close to the step surface of spark plug mounting hole, then sleeve pipe is withstood on the cylinder cap, make the gauge head of location measuring staff withstand push rod, push rod promotes the push rod of indicating gauge, thereby make indicating gauge record the spark plug mounting hole degree of depth, and calibration block compensates the deviation of measured value and theoretical value zero the time in the school, eliminated calibration error, it is convenient, accurate to measure.
Further, indicating gauge is fixed on the indicating gauge fixed block by clamping screw, is convenient to the indicating gauge adjustment.
Further, between indicating gauge and indicating gauge fixed block, install resilient sleeve additional, make the fastening better effects if of indicating gauge in measuring process, to keep the location, and indicating gauge is played a protective role.
Further, calibration block is slip gauge, and calibration block is the standard component according to the basic size manufacturing of the degree of depth of spark plug mounting hole, easily manufactured, also can eliminate simultaneously and make and the detection error, the roughness of calibration block is in Ra0.8, calibrate more accurate, thereby make measured value more accurate.
Further, sleeve pipe one end polish to roughness in Ra1.6, during measurement, this end withstands on the cylinder cap, measuring accuracy is higher.
Description of drawings
Next will be described in further detail specific embodiment of the utility model by reference to the accompanying drawings, wherein:
Fig. 1 is the sectional view of embodiment middle sleeve of the present utility model;
Fig. 2 is the front view of the cubing of embodiment of the present utility model;
Fig. 3 is the cubing calibrating principle figure of embodiment of the present utility model;
Fig. 4 is the cubing fundamental diagram of embodiment of the present utility model.
Mark among the last figure: 1-location measuring staff, 2-push rod, 3-sleeve pipe, 4-clamping screw, 5-indicating gauge, 6-resilient sleeve, 7-indicating gauge fixed block, 8-retracing spring, 9-calibration block, 10-calibration base, 11-screw, 12-cylinder cap, 101-step end, 102-gauge head, 21-flange, 31-upper surface, 32-lower surface, 33-first hole, 34-second hole, 35-shoulder end face, 51-push rod.
Embodiment
With reference to figure 1, it has specifically illustrated the structure of sleeve pipe 3.Sleeve pipe 3 has first hole 33 and second hole 34 of axial perforation, and therefore the internal diameter in first hole 33 has formed shoulder end face 35 greater than the internal diameter in second hole 34 between first hole 33 and second hole 34.The upper surface 31 of sleeve pipe 3 is used for and being connected of indicating gauge fixed block 7, and lower surface 32 is used for withstanding when the degree of depth of spark plug mounting hole measured the end face of cylinder cap.In order to make measurement more accurate, preferably lower surface 32 is polished to roughness in Ra1.6.
With reference to figure 2, in order more clearly to show the assembly relation between each parts, Fig. 2 middle sleeve 3 and indicating gauge fixed block 7 are broken away.During assembling, at first push rod 2 is inserted from first hole 33, the flange 21 in the middle of the push rod 2 withstands on shoulder end face 35 places, thereby avoids push rod 2 to deviate from from sleeve pipe 3, so flange 21 cooperates shoulder end face 35 to play position-limiting action.Stay in first hole 33 for one section of the flange 21 of push rod 2 and top thereof, one section of flange 21 belows is stretched into second hole 34.To be flange 21 stretch into a section in first hole 33 and stretch between in second hole 34 one section at push rod 2 meaning that it should be understood by one skilled in the art that at this " centre ", and be not 1/2 place that strictly is positioned at the length of push rod 2.Be clearance fit between flange 21 and first hole 33 or flange 21 belows one section and second hole 34, push rod 2 can be slided in sleeve pipe 3.In first hole 33, retracing spring 8 is enclosed within on the push rod 2 then.Then indicating gauge fixed block 7 is fastened to 31 places, upper surface of sleeve pipe 3 by screw 11, retracing spring 8 is against between flange 21 and the indicating gauge fixed block 7.Those of ordinary skills can imagine, indicating gauge fixed block 7 can also be realized and the fixedlying connected of sleeve pipe 3 by modes such as welding.In the indicating gauge mounting hole of indicating gauge fixed block 7, insert resilient sleeve 6, again with indicating gauge 5(dial gauge or clock gauge) be installed on the indicating gauge fixed block 7, tighten clamping screw 4 after making the upper surface of push rod 51 conflict push rods 2 of indicating gauge 5, because resilient sleeve 6 axially has the slit (not shown) along it, therefore along with the tightening of clamping screw 4, resilient sleeve 6 is shunk and is held indicating gauge 5 tightly.Certainly indicating gauge 5 also can directly be weldingly fixed on the indicating gauge fixed block 7, and perhaps, indicating gauge 5 also can directly contact with clamping screw 4 and fastened, but welds the adjustment that is unfavorable for indicating gauge 5.Resilient sleeve 6 had both made things convenient for dismounting and the adjustment of indicating gauge 5, can protect the table body again, therefore had more advantage.Location measuring staff 1 is independent parts, does not produce with other parts to be connected.One end of location measuring staff 1 is the step end 101 of the stacked formation step shape of right cylinder that varies in size, extends upward gauge head 102 at the end face of step end 101.When being used for measuring, step end 101 with the cooperating of the step surface of spark plug mounting hole, makes indicating gauge 5 generation registrations thereby gauge head 102 is used for roof pressure push rod 2.
With reference to figure 3, it has shown school zero principle of cubing.Calibration block 9 is the standard components according to the basic size manufacturing of the degree of depth of spark plug mounting hole, with the one-tenth-value thickness 1/10 between its upper and lower end face as standard value, have through hole between its upper and lower end face, and the internal diameter of through hole is greater than the external diameter of gauge head 102, calibration block 9 can be enclosed within on the gauge head 102.Two end faces up and down to calibration block 9 finish grind, its roughness is reached in the Ra0.8, calibration block 9 after measuring, horizontal metroscope is engraved in measured value above the calibration block 9, being of a size of 19 ± 0.05mm with measured hole here is example, after if calibration block is made, the thickness of measuring calibration block is 19.021mm, when the school is zero, to locate measuring staff 1 is fixed on the calibration base 10, calibration block 9 is enclosed within on the gauge head 102, the upper surface of step end 101 is close in the lower surface of calibration block 9, and the upper surface of calibration block 9 is close in the lower surface 32 of sleeve pipe 3.After gauge head 102 withstands push rod 2, the numerical value of indicating gauge is adjusted into+0.021mm, namely if dial gauge, then indicator is adjusted into 2 positive lattice, just as detecting zero point, this school zero method does not have calibration error to the dial gauge after adjusting, the foozle of having only dial gauge, the calibration accuracy height.
With reference to figure 4, for clear, the cylinder cap 12 among the figure is represented by dotted lines.After cubing is zero through the school, will locate the spark plug mounting hole that measuring staff 1 inserts cylinder cap 12, step end 101 is close to the step surface of spark plug mounting hole.The lower surface 32 that the sleeve pipe 3 of indicating gauge 5 is installed is withstood the end face of cylinder cap 12.Gauge head 102 stretches out roof pressure push rod 2 from spark plug mounting hole, push rod 2 promotes push rod 51, makes indicating gauge 5 produce the deviation registration, and this deviation registration is the deviation of spark plug degree of depth relative theory value.
Though the utility model is described in conjunction with above embodiment, but the utility model is not limited to above-described embodiment, and only be subjected to the restriction of claim, those of ordinary skills can easily make amendment to it and change, but do not leave essence design of the present utility model and scope.
Claims (5)
1. engine cylinder cover spark plug mounting hole degree of depth cubing comprises:
Location measuring staff, one end have step shape and extend gauge head from the end face of this end;
Sleeve pipe, it has first hole and second hole of coaxial perforation, and the internal diameter in described first hole is greater than the internal diameter in described second hole;
Push rod has flange in the middle of it;
Indicating gauge;
The indicating gauge fixed block;
Calibration block, described calibration block has through hole, and the internal diameter of described through hole is greater than the external diameter of the gauge head of described location measuring staff;
Described indicating gauge is fixed on the described indicating gauge locating piece, one end of the fixedly connected described sleeve pipe of described indicating gauge locating piece and the push rod of described indicating gauge stretch into described first hole, described push rod and described sleeve pipe are slidingly matched and are spacing by described flange, between described flange and the described indicating gauge locating piece retracing spring are installed.
2. engine cylinder cover spark plug mounting hole degree of depth cubing according to claim 1 is characterized in that described indicating gauge is fixed on the described indicating gauge fixed block by clamping screw.
3. engine cylinder cover spark plug mounting hole degree of depth cubing according to claim 2 is characterized in that, has resilient sleeve between described indicating gauge and the described indicating gauge fixed block, and described resilient sleeve has axial slits.
4. engine cylinder cover spark plug mounting hole degree of depth cubing according to claim 1 is characterized in that the roughness of two end faces of described calibration block is in Ra0.8.
5. engine cylinder cover spark plug mounting hole degree of depth cubing according to claim 1 is characterized in that, the end that described sleeve pipe does not connect described indicating gauge locating piece polish to roughness in Ra1.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043574 CN203163658U (en) | 2013-01-25 | 2013-01-25 | Depth testing fixture for spark-plug installation hole of engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043574 CN203163658U (en) | 2013-01-25 | 2013-01-25 | Depth testing fixture for spark-plug installation hole of engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163658U true CN203163658U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320043574 Expired - Fee Related CN203163658U (en) | 2013-01-25 | 2013-01-25 | Depth testing fixture for spark-plug installation hole of engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203163658U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413904A (en) * | 2018-03-14 | 2018-08-17 | 苏州普费勒精密量仪有限公司 | A kind of sparking-plug electrode symmetry measuring device |
| CN108413904B (en) * | 2018-03-14 | 2024-05-28 | 苏州普费勒精密量仪有限公司 | Symmetry measuring device for spark plug electrode |
-
2013
- 2013-01-25 CN CN 201320043574 patent/CN203163658U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413904A (en) * | 2018-03-14 | 2018-08-17 | 苏州普费勒精密量仪有限公司 | A kind of sparking-plug electrode symmetry measuring device |
| CN108413904B (en) * | 2018-03-14 | 2024-05-28 | 苏州普费勒精密量仪有限公司 | Symmetry measuring device for spark plug electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |