CN211977781U - Comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder - Google Patents
Comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder Download PDFInfo
- Publication number
- CN211977781U CN211977781U CN202020753553.5U CN202020753553U CN211977781U CN 211977781 U CN211977781 U CN 211977781U CN 202020753553 U CN202020753553 U CN 202020753553U CN 211977781 U CN211977781 U CN 211977781U
- Authority
- CN
- China
- Prior art keywords
- detection
- thickness
- crankshaft
- shoulder
- contact surface
- 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
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a bent axle shoulder excircle diameter, utensil is examined in thickness synthesis, should synthesize and examine a for microscler slat, examine a both ends end middle part and be equipped with respectively with the parallel recess that is the V shape of broadside, examine the same position of the both sides broadside of a both sides and go up the order and be equipped with and examine the parallel first groove of broadside, the second groove, third groove and fourth groove, it detects the piece to be equipped with the first detection piece that thickness is the same and the second on the leptoprosopy of one side to examine, it detects piece and fourth detection piece to be equipped with the third that thickness is the same on the leptoprosopy of opposite side, wherein first detection piece is just right with the third detection piece, the second detects the piece and the fourth detection piece is just right. The checking fixture is simple in structure, convenient to operate, low in manufacturing cost, high in identification accuracy and efficiency.
Description
Technical Field
The utility model relates to an auto-parts detection technology specifically is a bent axle shoulder excircle diameter, thickness are synthesized and are examined utensil.
Background
The commercial vehicle crankshaft is one of engine components, and the shape is complex and the machining difficulty is high.
The crankshaft is a key component of an automobile engine, and the assembly requirement of the crankshaft is high. The height and the thickness of the steps of the main journal of the crankshaft and the connecting rod journal, particularly the height of the step of the main journal where the thrust stop is located, can prevent the axial movement of the crankshaft due to the fact that the thrust plate needs to be installed, and therefore the excircle of the shoulder of the crankshaft needs to be guaranteed. At present, the excircle of the shoulder of the crankshaft is generally detected in a mode of direct measurement by a vernier caliper in the machining industry. When this detection mode detects circular bead excircle thickness, need to erect the bent axle and just can detect circular bead excircle thickness, require the school height to the inspector skill, receive the influence of detection gimmick, this detection mode error is great, easily produces the erroneous judgement and the bent axle erects and measures there is the security. In addition, the height of any position of the excircle of the crankshaft shoulder cannot be completely measured by the detection mode, and defective products cannot be identified.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art, and provide a bent axle shoulder excircle diameter, thickness are synthesized and are examined utensil. The checking fixture is simple in structure, convenient to operate, low in manufacturing cost, high in identification accuracy and efficiency.
Realize the utility model discloses the technical scheme of purpose is:
the comprehensive checking fixture is a long batten, two side faces with large area on the checking fixture are wide faces, each wide face comprises a long side and a wide side, two side faces with small area are narrow faces, the middle parts of the end heads at the two ends of the checking fixture are respectively provided with a V-shaped groove parallel to the wide sides of the checking fixture, a first scribed line, a second scribed line, a third scribed line and a fourth scribed line which are parallel to the wide sides of the checking fixture are sequentially arranged at the same positions of the wide faces at the two sides of the checking fixture, a first detection block and a second detection block which are the same in thickness are arranged on the narrow face at one side of the scribed line, a third detection block and a fourth detection block which are the same in thickness are arranged on the narrow face at the other side of the checking fixture, the first detection block is right opposite to the third detection block, and the second detection.
The first detection block, the second detection block, the third detection block and the fourth detection block are respectively a first detection surface, a second detection surface, a third detection surface and a fourth detection surface facing outwards and parallel to the long edge of the detection tool, and the end surfaces of the narrow surfaces of the detection tool are respectively a first contact surface, a second contact surface, a third contact surface and a fourth contact surface.
And chamfers are arranged between the first detection surface, the second detection surface, the third detection surface and the fourth detection surface and between the first contact surface, the second contact surface, the third contact surface and the fourth contact surface respectively, and fillets are arranged at two ends of the detection tool.
The thickness of the first detection block is smaller than that of the third detection block.
The first scribing line is the minimum limit size of the diameter of the outer circle of the first crankshaft shoulder, the second scribing line is the maximum limit size of the diameter of the outer circle of the first crankshaft shoulder, the third scribing line is the maximum limit size of the diameter of the outer circle of the second crankshaft shoulder, and the fourth scribing line is the minimum limit size of the diameter of the outer circle of the second crankshaft shoulder.
The use process of the comprehensive checking fixture for the diameter and the thickness of the outer circle of the crankshaft shoulder is as follows:
(1) measuring the diameter of the excircle of the first crankshaft shoulder, closely attaching an inclined plane in a groove close to the first scribed line on the detection tool to a main journal of the detected crankshaft, closely attaching a third contact surface to the first shoulder surface of the detected crankshaft, visually observing whether the excircle sideline of the crankshaft shoulder falls in the range between the first scribed line and the second scribed line, and judging that the excircle diameter of the crankshaft shoulder is qualified if the excircle sideline of the detected crankshaft shoulder falls in the range between the first scribed line and the second scribed line; if the excircle boundary line of the detected crankshaft shoulder falls outside the range between the first scribed line and the second scribed line, judging that the excircle diameter of the crankshaft shoulder is unqualified;
(2) measuring the thickness of the excircle of the first crankshaft shoulder, closely attaching an inclined plane in a groove close to a first groove on a detection tool to a main journal of a detected crankshaft, closely attaching a third detection surface to a second shoulder surface part of the detected crankshaft, visually observing the first shoulder surface and the third detection surface of the detected crankshaft, ensuring that the thickness of the excircle of the shoulder is qualified if the first shoulder surface and the third contact surface of the detected crankshaft are attached, rotating the detection tool by 180 degrees along the long edge if the first shoulder surface and the third contact surface of the detected crankshaft are not attached, still closely attaching the inclined plane in the groove close to the first groove on the detection tool to the main journal of the detected crankshaft, simultaneously closely attaching the first contact surface to the first shoulder surface of the detected crankshaft, visually observing the first detection shoulder surface and the second shoulder surface of the detected crankshaft, and ensuring that the thickness of the excircle is qualified if the first detection surface is attached to the second shoulder surface of the detected crankshaft, if the first detection surface is not attached to the second shoulder surface of the detected crankshaft, the thickness dimension of the outer circle of the shoulder is unqualified;
(3) the diameter and the thickness of the excircle of the second crankshaft shoulder are measured by rotating the checking fixture along the wide edge by 180 degrees on the basis of measuring the diameter and the thickness of the excircle of the first crankshaft shoulder, and the diameter and the thickness of the excircle of the first crankshaft shoulder are measured in other operation steps.
The thickness of the first detection block is 0.65+0.1 0mm, the thickness of the third detection block is 1.050 -0.1 mm。
The distances between the first scribed line and the wide edge of the gauge, close to the first scribed line, and the distances between the second scribed line and the wide edge of the gauge, close to the first scribed line, are respectively 4.75+0.1 0mm and 5.550 -0.1mm, the distances between the third scribed line and the wide edge of the gauge, close to the fourth scribed line, and the distances between the fourth scribed line and the wide edge of the gauge, close to the fourth scribed line, are respectively 13.30 -0.1mm and 12.5+0.1 0mm。
The joint of the two inclined planes in the groove is 90 degrees, and the depth of the groove is 2 mm.
The width of the checking fixture is smaller than or equal to 35mm, and the checking fixture is prevented from interfering with a shoulder of a crankshaft journal.
The maximum limit value and the minimum limit value corresponding to the excircle diameter of the crankshaft shoulder and the letter and the numerical value corresponding to the excircle thickness of the crankshaft shoulder are carved on the checking fixture so as to distinguish the excircle diameters and thicknesses of the two crankshaft shoulders.
All the plane roughness of the checking fixture is Ra0.4, so that the journal is prevented from being scratched when the checking fixture is in contact with the surface of the finish-machined crankshaft journal.
The checking fixture is simple in structure, convenient to operate, low in manufacturing cost, high in identification accuracy and efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a left side view of the embodiment;
FIG. 3 is a schematic diagram illustrating the detection of the diameter and thickness of the outer circle of the crankshaft shoulder according to the embodiment;
fig. 4 is an enlarged view of fig. 3 at P.
In the figure, 1, a first scribed line 2, a second scribed line 3, a third scribed line 4, a fourth scribed line 5, a first detection block 51, a first detection surface 52, a first contact surface 6, a second detection block 61, a second detection surface 62, a second contact surface 7, a third detection block 71, a third detection surface 72, a third contact surface 8, a fourth detection block 81, a fourth detection surface 82, a fourth contact surface H, a gauge width a, a first detection block thickness b, a third detection block thickness 9, a groove 10, a crankshaft journal shoulder 12, a crankshaft main journal 13, a crankshaft first shoulder surface 14 and a crankshaft second shoulder surface.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments, but the present invention is not limited thereto.
Example (b):
referring to fig. 1-2, the comprehensive checking fixture for the diameter and the thickness of the outer circle of the crankshaft shoulder is a long strip, two side faces with large area on the checking fixture are wide faces, each wide face comprises a long side and a wide side, two side faces with small area are narrow faces, the middle parts of the end heads at two ends of the checking fixture are respectively provided with a V-shaped groove 9 parallel to the wide sides of the checking fixture, a first scribed line 1, a second scribed line 2, a third scribed line 3 and a fourth scribed line 4 parallel to the wide sides of the checking fixture are sequentially arranged at the same positions of the wide faces at two sides of the checking fixture, a first detecting block 5 and a second detecting block 6 which are the same in thickness are arranged on the narrow face at one side of the checking fixture, a third detecting block 7 and a fourth detecting block 8 which are the same in thickness are arranged on the narrow face at the other side of the checking fixture, wherein the first detecting block 5 is opposite to the.
The surfaces of the first detection block 5, the second detection block 6, the third detection block 7 and the fourth detection block 8 facing outwards and parallel to the long sides of the detection tool are respectively a first detection surface 51, a second detection surface 61, a third detection surface 71 and a fourth detection surface 81, and the end surfaces of the narrow surfaces of the detection tool are respectively a first contact surface 52, a second contact surface 62, a third contact surface 72 and a fourth contact surface 82.
And chamfers are arranged between the first detection surface 51, the second detection surface 61, the third detection surface 71 and the fourth detection surface 81 and between the first contact surface 52, the second contact surface 62, the third contact surface 72 and the fourth contact surface 82 respectively, two ends of the detection tool are provided with fillets, and the radius of each fillet is 8 mm.
The thickness of the first detecting block 5 is smaller than that of the third detecting block 7.
As shown in fig. 3 and 4, the comprehensive crankshaft shoulder excircle diameter and thickness gauge is used as follows:
(1) measuring the diameter of the outer circle of the shoulder of the first crankshaft 10, closely attaching an inclined plane in a groove 9 close to the first scribed line 1 on a detection tool to a main journal 12 of the detected crankshaft, closely attaching a third contact surface 72 to a first shoulder surface 13 of the detected crankshaft, visually observing whether the outer circle sideline of the shoulder of the crankshaft falls in the range between the first scribed line 1 and the second scribed line 2, and if the outer circle sideline of the shoulder of the detected crankshaft falls in the range between the first scribed line 1 and the second scribed line 2, judging that the diameter of the outer circle of the shoulder of the crankshaft is qualified; if the excircle sideline of the detected crankshaft shoulder falls outside the range between the first reticle 1 and the second reticle 2, judging that the excircle diameter of the crankshaft shoulder is unqualified;
(2) measuring the thickness of the outer circle of a shoulder of a first crankshaft 10, closely attaching an inclined plane in a groove 9 close to a first scribed line 1 on a detection tool to a main journal 12 of the detected crankshaft, closely attaching a third detection surface 71 to a second shoulder 14 of the detected crankshaft, visually observing the first shoulder 13 and the third detection surface 71 of the detected crankshaft, if the first shoulder 13 and the third contact surface 72 of the detected crankshaft are attached, the thickness of the outer circle of the shoulder is qualified, if the first shoulder 13 and the third contact surface 72 of the detected crankshaft are not attached, rotating the detection tool by 180 degrees along the long edge, still closely attaching the inclined plane in the groove 9 close to the first scribed line 1 on the detection tool to the main journal 12 of the detected crankshaft, meanwhile, closely attaching a first contact surface 52 to the first shoulder 13 of the detected crankshaft, visually observing the first detection surface 51 and the second shoulder 14 of the detected crankshaft, and if the first detection surface 51 is attached to the second shoulder 14 of the detected crankshaft, the thickness dimension of the outer circle of the shoulder is qualified, and if the first detection surface 51 is not attached to the second shoulder surface 14 of the detected crankshaft, the thickness dimension of the outer circle of the shoulder is unqualified;
(3) the second measurement of 10 bent axle circular bead excircle diameters of 10, thickness only needs will examine utensil along the broadside rotation 180 on the basis of measuring first bent axle circular bead diameter, thickness, and other operation steps are with measuring first bent axle circular bead diameter, thickness.
The thickness a of the first detecting block 5 is 0.65+0.1 0mm, and the thickness b of the third detection block 7 is 1.050 -0.1mm, in this example the thickness a of the first test piece is 0.65mm and the thickness b of the third test piece is 1.05 mm.
The distances between the first scribed line 1 and the wide edge of the second scribed line 2 close to the first scribed line 1 are respectively 4.75+0.1 0mm and 5.550 -0.1mm, in this case 4.75mm and 5.55mm, the third score line 3 and the fourth score line 4 are at a distance of 13.3mm from the broad side of the fourth score line 4, respectively0 -0.1mm and 12.5+0.1 0mm, in this case 13.3mm and 12.5 mm.
The joint of the two inclined planes in the groove 9 is 90 degrees, and the depth of the groove 9 is 2 mm.
The width H of the checking tool is smaller than or equal to 35mm, in this case 35mm, and the checking tool is prevented from interfering with a shoulder of a crankshaft journal.
The maximum limit value and the minimum limit value corresponding to the excircle diameter of the crankshaft shoulder and the letter and the numerical value corresponding to the excircle thickness of the crankshaft shoulder are carved on the checking fixture so as to distinguish the excircle diameters and thicknesses of the two crankshaft shoulders.
All the plane roughness of the checking fixture is Ra0.4, so that the journal is prevented from being scratched when the checking fixture is in contact with the surface of the finish-machined crankshaft journal.
Claims (5)
1. The comprehensive detection tool is characterized in that the comprehensive detection tool is a long strip plate, two side faces with large area on the detection tool are wide faces, each wide face comprises a long edge and a wide edge, two side faces with small area are narrow faces, the middle parts of the end heads at two ends of the detection tool are respectively provided with a V-shaped groove parallel to the wide edges of the detection tool, a first scribed line, a second scribed line, a third scribed line and a fourth scribed line which are parallel to the wide edges of the detection tool are sequentially arranged at the same positions of the wide faces at two sides of the detection tool, a first detection block and a second detection block which are the same in thickness are arranged on the narrow face at one side of the detection tool, a third detection block and a fourth detection block which are the same in thickness are arranged on the narrow face at the other side of the detection tool, the first detection block is right opposite to the third detection block, and.
2. The crankshaft shoulder excircle diameter and thickness comprehensive detection tool according to claim 1, wherein the outward surfaces of the first detection block, the second detection block, the third detection block and the fourth detection block, which are parallel to the long side of the detection tool, are respectively a first detection surface, a second detection surface, a third detection surface and a fourth detection surface, and the end surfaces of the narrow surface of the detection tool are respectively a first contact surface, a second contact surface, a third contact surface and a fourth contact surface.
3. The comprehensive detection tool for the diameter and the thickness of the excircle of the crankshaft shoulder according to claim 2, wherein chamfers are arranged between the first detection surface, the second detection surface, the third detection surface and the fourth detection surface and the first contact surface, the second contact surface, the third contact surface and the fourth contact surface respectively, and fillets are arranged at two ends of the detection tool.
4. The crankshaft shoulder outer circle diameter and thickness comprehensive detection tool according to claim 1, wherein the thickness of the first detection block is smaller than that of the third detection block.
5. The crankshaft shoulder excircle diameter and thickness comprehensive testing fixture of claim 1, wherein said first score line is a minimum limit dimension of a first crankshaft shoulder excircle diameter, said second score line is a maximum limit dimension of a first crankshaft shoulder excircle diameter, said third score line is a maximum limit dimension of a second crankshaft shoulder excircle diameter, and said fourth score line is a minimum limit dimension of a second crankshaft shoulder excircle diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020753553.5U CN211977781U (en) | 2020-05-09 | 2020-05-09 | Comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020753553.5U CN211977781U (en) | 2020-05-09 | 2020-05-09 | Comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211977781U true CN211977781U (en) | 2020-11-20 |
Family
ID=73370453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020753553.5U Active CN211977781U (en) | 2020-05-09 | 2020-05-09 | Comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211977781U (en) |
-
2020
- 2020-05-09 CN CN202020753553.5U patent/CN211977781U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209131569U (en) | A kind of slot phase angle gauge of non-planar crankshaft forging | |
| CN211977781U (en) | Comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder | |
| CN112595281B (en) | Method and medium for rapidly measuring surface profile of workpiece | |
| CN207894327U (en) | Measure the detection instrument of bent axle Woodruff key slots and keyways axial position size | |
| CN111426253A (en) | Use method of comprehensive checking fixture for diameter and thickness of outer circle of crankshaft shoulder | |
| CN214842838U (en) | Special no go gage of aluminum alloy photovoltaic frame | |
| CN210165864U (en) | Detection template for outer circle diameter of crankshaft shoulder | |
| CN216558635U (en) | Detection tool for rapidly detecting length of thrust surface of shaft workpiece | |
| CN213238757U (en) | A examine utensil for detecting thin wall stator-rotor punching plane degree | |
| CN106907967B (en) | Method for detecting virtual size of extension intersection point of double-cutting and rounding of two side edges | |
| CN108168400A (en) | The dovetail groove detection device and detection method of a kind of annular element | |
| CN211042049U (en) | Utensil is examined to accurate measurement slot position | |
| CN211783133U (en) | Bent axle major part chamfer gauge | |
| CN110345840A (en) | A kind of the detection template and its application method of crankshaft shoulder outside diameter | |
| CN214470478U (en) | Detection tool for 150 (T) gear shaving machine body | |
| CN214121020U (en) | Measuring tool for bearing ring blank | |
| CN111272035A (en) | Internal diameter go-no go gauge | |
| CN110926314A (en) | Synchronous detection method for eccentric surfaces of double-eccentric gear | |
| CN216348164U (en) | Wedge-shaped detection block with scale | |
| CN221123217U (en) | Inspection tool for filler cap | |
| CN219495065U (en) | Special detection clamping plate for measuring groove diameter of torsion shear type bolt | |
| CN217465562U (en) | Detection tool for detecting front mounting bracket of automobile battery | |
| CN215064247U (en) | Hole size testing fixture | |
| CN211876892U (en) | Go-no go gauge for detecting seal ring end surface groove for subway | |
| CN219415968U (en) | Clamping plate for detecting cambered surface of sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |