CN203216439U - Cylinder-hole verticality testing fixture for engine crankcase - Google Patents
Cylinder-hole verticality testing fixture for engine crankcase Download PDFInfo
- Publication number
- CN203216439U CN203216439U CN 201320153472 CN201320153472U CN203216439U CN 203216439 U CN203216439 U CN 203216439U CN 201320153472 CN201320153472 CN 201320153472 CN 201320153472 U CN201320153472 U CN 201320153472U CN 203216439 U CN203216439 U CN 203216439U
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- China
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- hole
- perpendicularity
- core axle
- engine crankcase
- positioning core
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a cylinder-hole verticality testing fixture for an engine crankcase. The verticality testing fixture comprises a positioning mandrel for inserting a main shaft hole of the crankcase to carry out central line positioning, and a measuring mandrel for detecting cylinder hole verticality, wherein the positioning mandrel is radially provided with a guiding hole for penetrating the measuring mandrel. The guiding hole and the cylinder hole of the crankcase are mounted coaxially and oppositely. The guiding hole is vertical with a central line of the positioning mandrel. The cylinder-hole verticality testing fixture provided by the utility model is reasonable in a structure and convenient for operation and can detect at any moment based on production needs, testing work efficiency is raised and product quality is effectively controlled. The measuring mandrel and the positioning mandrel adopt a hollow structure, overall weight of the testing fixture is mitigated and an effect of convenient operation is achieved.
Description
Technical field
The utility model belongs to technical field of engines, particularly a kind of engine crankcase cylinders hole perpendicularity cubing.
Background technology
The detection of engine crankcase cylinders hole perpendicularity is a crucial detection in the engine production process, be benchmark with automobile engine crankshaft case spindle hole center line, the error of perpendicularity of center, cylinder hole and this benchmark is 0.04mm, if this tolerance is overproof, can cause the piston eccentric wear, engine performance will descend.At present, it all is by extracting exemplar that the engine crankcase cylinders hole perpendicularity detects, deliver to inspection department and use the three coordinate measuring machine check, exemplar can not be accomplished on production line with arriving with inspection under this kind method of inspection, need carry out according to the inspection department plan, the product sense cycle is long, and need design and produce the dedicated test auxiliary mould, increases production cost and job costs.
Therefore, need improve engine crankcase cylinders hole perpendicularity cubing, make it rational in infrastructure, easy to operate, and can accomplish to detect at any time according to producing needs, improve work for inspection efficient, effectively control product quality.
The utility model content
In view of this, the utility model provides a kind of engine crankcase cylinders hole perpendicularity cubing, and is rational in infrastructure, easy to operate, and can accomplish to detect at any time according to producing needs, improves work for inspection efficient, effectively controls product quality.
Engine crankcase cylinders hole perpendicularity cubing of the present utility model, comprise for inserting that the crankcase spindle hole carries out the positioning core axle of center line location and for detection of the measurement mandrel of cylinder hole perpendicularity, radially be provided with the pilot hole that passes for described measurement mandrel on the described positioning core axle, described pilot hole and the coaxial corresponding setting in crankcase cylinders hole and perpendicular with described positioning core axle center line.
Further, be provided with pilot bushing in the described pilot hole.
Further, described pilot bushing center line and the described positioning core axle center line error of perpendicularity are 0.005mm.
Further, described measurement mandrel comprises connecting portion and fixedlys connected with described connecting portion lower end and be used for to insert the guide part in pilot hole and cylinder hole.
Further, the connecting portion of described measurement mandrel and described positioning core axle all removably connect and are provided with handle for conveniently picking and placeing.
Further, described positioning core axle, described measurement mandrel and described handle are hollow-core construction.
Further, the corresponding pilot hole of described positioning core axle is provided with the planar structure heavy stand, and described pilot bushing end face and described heavy stand plane flush.
Further, described positioning core axle is the outside cylinder structure, and its outside surface is provided with for the ring groove of conveniently holding, and the described ring groove degree of depth is 0.5-0.9mm.
Further, the maximal clearance is not more than 0.008mm when the guide part of described measurement mandrel and described pilot bushing cooperation place new system, and the maximal clearance is not more than 0.013mm during wearing and tearing.
The beneficial effects of the utility model: engine crankcase cylinders hole perpendicularity cubing of the present utility model, pilot bushing is assemblied on the positioning core axle, reach the verticality requirement by adjusting pilot bushing, the pilot bushing end face flushes with positioning core axle heavy stand plane, 4 pilot bushing center lines and positioning core axle center line are set error of perpendicularity 0.005mm for, when positioning core axle inserts the crankcase main bearing hole, measure mandrel and can pass pilot hole, cylinder hole successively, just can judge that the cylinder hole perpendicularity is qualified; The utility model is rational in infrastructure, and is easy to operate, and can accomplish to detect at any time according to producing needs, improves work for inspection efficient, effectively controls product quality; Measure mandrel and positioning core axle and all adopt hollow-core construction, alleviate the cubing overall weight, reach and operate effect easily.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model structural representation;
Fig. 2 is the positioning core axle structural representation;
Fig. 3 is that Fig. 2 A-A is to view;
Fig. 4 is for measuring the mandrel structural representation.
Embodiment
Fig. 1 is the utility model structural representation, Fig. 2 is the positioning core axle structural representation, Fig. 3 is that Fig. 2 A-A is to view, Fig. 4 is for measuring the mandrel structural representation, as shown in the figure: the engine crankcase cylinders hole perpendicularity cubing of present embodiment, comprise for inserting that the crankcase spindle hole carries out the positioning core axle 1 of center line location and for detection of the measurement mandrel 2 of cylinder hole perpendicularity, radially be provided with the pilot hole 3 that passes for described measurement mandrel 2 on the described positioning core axle 1, described pilot hole 3 and the coaxial corresponding setting in crankcase cylinders hole and perpendicular with described positioning core axle 1 center line; Positioning core axle is one in the present embodiment, and pilot hole arranges four, measures the corresponding pilot hole of mandrel number and is set to four.
In the present embodiment, be provided with pilot bushing 4 in the described pilot hole 3; Can reach the verticality requirement by adjusting pilot bushing, guarantee measurement precision, longer when service time, during serious wear, only need to change pilot bushing and get final product, save cost; In the present embodiment, the corresponding pilot hole of the number of pilot bushing is set to four.
In the present embodiment, described pilot bushing 4 center lines and the described positioning core axle 1 center line error of perpendicularity are 0.005mm; Guarantee location accuracy, guarantee measurement effect, dwindle measuring error.
In the present embodiment, described measurement mandrel 2 comprises connecting portion 21 and fixedlys connected with described connecting portion 21 lower ends and be used for to insert the guide part 22 in pilot hole and cylinder hole; Reasonable in design connects firmly, and guide part inserts the verticality that pilot hole and cylinder hole are used for measuring the cylinder hole successively.
In the present embodiment, the connecting portion 21 of described measurement mandrel 2 and described positioning core axle 1 all removably connect and are provided with handle 5 for conveniently picking and placeing; Easy to connect, be easy to change, use handle can make picking and placeing of positioning core axle and measurement mandrel convenient, time saving and energy saving; In the present embodiment, the connecting portion of measuring mandrel is steel pipe, and weld silently at the steel pipe two ends, and guide part and an end are silently one-body molded, and the other end silently outside surface is provided with double-screw bolt, and handle and double-screw bolt removably connect.
In the present embodiment, described positioning core axle 1, described measurement mandrel 2 and described handle 5 are hollow-core construction; Alleviated the cubing overall weight greatly, picked and placeed and be more prone to, it is also more convenient to operate.
In the present embodiment, described positioning core axle 1 corresponding pilot hole 3 is provided with planar structure heavy stand 6, and described pilot bushing 4 end faces and described heavy stand 6 planes flush; Can guarantee the smooth installation of pilot bushing, planar structure refers to be arranged to flat shape around the corresponding pilot hole of heavy stand, is beneficial to the verticality of adjusting pilot bushing, guarantees measurement effect.
In the present embodiment, described positioning core axle 1 is the outside cylinder structure, and its outside surface is provided with for the ring groove of conveniently holding 7, and described ring groove 7 degree of depth are 0.5-0.9mm; And can reduce the positioning core axle sliding resistance, be beneficial to the operation ease that improves cubing, and can reduce the weight of positioning core axle.
In the present embodiment, the maximal clearance is not more than 0.008mm during the guide part of described measurement mandrel 2 22 and described pilot bushing 4 cooperation place new systems, and the maximal clearance is not more than 0.013mm during wearing and tearing; Reduce error, guarantee measuring accuracy.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. engine crankcase cylinders hole perpendicularity cubing, it is characterized in that: comprise for inserting that the crankcase spindle hole carries out the positioning core axle of center line location and for detection of the measurement mandrel of cylinder hole perpendicularity, radially be provided with the pilot hole that passes for described measurement mandrel on the described positioning core axle, described pilot hole and the coaxial corresponding setting in crankcase cylinders hole and perpendicular with described positioning core axle center line.
2. engine crankcase cylinders hole perpendicularity cubing according to claim 1 is characterized in that: be provided with pilot bushing in the described pilot hole.
3. engine crankcase cylinders hole perpendicularity cubing according to claim 2, it is characterized in that: described pilot bushing center line and the described positioning core axle center line error of perpendicularity are 0.005mm.
4. engine crankcase cylinders hole perpendicularity cubing according to claim 3 is characterized in that: described measurement mandrel comprises connecting portion and fixedlys connected with described connecting portion lower end and be used for inserting the guide part in pilot hole and cylinder hole.
5. engine crankcase cylinders hole perpendicularity cubing according to claim 4 is characterized in that: the connecting portion of described measurement mandrel and described positioning core axle all removably connect and are provided with handle for conveniently picking and placeing.
6. engine crankcase cylinders hole perpendicularity cubing according to claim 5, it is characterized in that: described positioning core axle, described measurement mandrel and described handle are hollow-core construction.
7. engine crankcase cylinders hole perpendicularity cubing according to claim 6 is characterized in that: the corresponding pilot hole of described positioning core axle is provided with the planar structure heavy stand, and described pilot bushing end face and described heavy stand plane flush.
8. engine crankcase cylinders hole perpendicularity cubing according to claim 7, it is characterized in that: described positioning core axle is the outside cylinder structure, and its outside surface is provided with for the ring groove of conveniently holding, and the described ring groove degree of depth is 0.5-0.9mm.
9. engine crankcase cylinders hole perpendicularity cubing according to claim 8, it is characterized in that: the maximal clearance is not more than 0.008mm when the guide part of described measurement mandrel and described pilot bushing cooperation place new system, and the maximal clearance is not more than 0.013mm during wearing and tearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153472 CN203216439U (en) | 2013-03-29 | 2013-03-29 | Cylinder-hole verticality testing fixture for engine crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153472 CN203216439U (en) | 2013-03-29 | 2013-03-29 | Cylinder-hole verticality testing fixture for engine crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216439U true CN203216439U (en) | 2013-09-25 |
Family
ID=49205966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320153472 Expired - Fee Related CN203216439U (en) | 2013-03-29 | 2013-03-29 | Cylinder-hole verticality testing fixture for engine crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222686A (en) * | 2015-10-16 | 2016-01-06 | 重庆颖泉标准件有限公司 | A kind of car gear shifting fork verticality measuring instrument |
| CN108844444A (en) * | 2018-06-15 | 2018-11-20 | 中国石油天然气集团有限公司 | A kind of large size body cylinder holes and main shaft hole perpendicularity, Intersection measurer and measurement method |
-
2013
- 2013-03-29 CN CN 201320153472 patent/CN203216439U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222686A (en) * | 2015-10-16 | 2016-01-06 | 重庆颖泉标准件有限公司 | A kind of car gear shifting fork verticality measuring instrument |
| CN108844444A (en) * | 2018-06-15 | 2018-11-20 | 中国石油天然气集团有限公司 | A kind of large size body cylinder holes and main shaft hole perpendicularity, Intersection measurer and measurement method |
| CN108844444B (en) * | 2018-06-15 | 2023-09-12 | 中国石油天然气集团有限公司 | Measuring tool and measuring method for perpendicularity and intersection degree of large-scale machine body cylinder hole and main shaft hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |