CN210922455U - Rapid detection tool for rolling and pressing down amount of fillet of crankshaft journal - Google Patents
Rapid detection tool for rolling and pressing down amount of fillet of crankshaft journal Download PDFInfo
- Publication number
- CN210922455U CN210922455U CN201922104336.3U CN201922104336U CN210922455U CN 210922455 U CN210922455 U CN 210922455U CN 201922104336 U CN201922104336 U CN 201922104336U CN 210922455 U CN210922455 U CN 210922455U
- Authority
- CN
- China
- Prior art keywords
- gauge
- fillet
- indicator
- rolling
- positioning block
- 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
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a quick gauge for the rolling depression of a crankshaft journal fillet, wherein a gauge stand comprises a pair of gauge clamps which are connected together, a pair of gauge ears which are connected together are arranged above the gauge clamps, the inner sides of the gauge ears are provided with chutes, and one gauge ear is provided with a screw hole; the positioning block is arranged in the sliding groove, and one end of the positioning block is abutted to the positioning bolt screwed in the screw hole; the positioning block is provided with a through hole, a bushing is arranged in the through hole, and the bushing is sleeved on the gauge rod and fastened by a fixing bolt screwed in a screw hole of the bushing; a gauge head below the gauge rod is abutted with the pressing fillet of the workpiece; the dial indicator is fixed above the indicator rod; the meter card is provided with a V-shaped groove, and the V-shaped groove is abutted to the outer surface of the workpiece. The utility model has the advantages that: the gauge can meet the detection requirement of fillet pressing amount, can be used for on-site judgment of rolling effect, and can realize rapid detection; through repeated detection before and after rolling, the repeated precision of the gauge is less than 0.01mm, and the precision requirement of the gauge is met.
Description
Technical Field
The utility model relates to the field of machinary, specifically an examine utensil.
Background
The crankshaft is one of important engine parts, and is the part which is difficult to ensure the processing quality in the five major parts of the engine. The service working condition of the crankshaft is severe, and the failure modes of the crankshaft are journal abrasion and fatigue fracture. Fatigue fracture is destructive and must be taken into high importance.
The crankshaft fillet rolling strengthening process is one of the most effective means for improving the fatigue strength of the crankshaft, and is a key process for realizing the replacement of steel by iron of the crankshaft. The crank shaft after fillet rolling has larger physical deformation, the process control must be fast and effective, the technological parameters of the rolling process are continuously optimized through the change condition of the pressing amount, otherwise, batch unqualified products are easily produced.
The fillet pressing amount of the fillet rolling crankshaft is an important index for measuring the fillet rolling effect, namely the deformation of the fillet in the rolling force direction. Part of product drawings have clear requirements on the pressing amount, the index cannot be accurately detected in actual production, and the variable quantity in the diameter direction of the undercut groove-shaped fillet is measured by using a vernier caliper at present; the conventional crankshaft in the excircle corner form uses a contourgraph to detect the pressing amount of a fillet, but the detection repetition error of the contourgraph is large, and the efficiency is low.
Disclosure of Invention
In order to solve the technical problem, the utility model aims at providing an examine utensil, but short-term test bent axle fillet pushes down volume, and concrete technical scheme is as follows:
the quick detection tool for the rolling depression of the fillet of the crankshaft journal comprises a dial indicator and an indicator frame, wherein the indicator frame comprises a pair of indicator cards which are connected together, a pair of indicator lugs which are connected together are arranged above the indicator cards, a sliding groove is arranged on the inner side of each indicator lug, and a screw hole is formed in one of the indicator lugs; the positioning block is arranged in the sliding groove, and one end of the positioning block is abutted to the positioning bolt screwed in the screw hole; the positioning block is provided with a through hole, a bushing is arranged in the through hole, and the bushing is sleeved on the gauge rod and fastened by a fixing bolt screwed in a screw hole of the bushing; a gauge head below the gauge rod is abutted with the pressing fillet of the workpiece; the dial indicator is fixed above the indicator rod; the meter card is provided with a V-shaped groove, and the V-shaped groove is abutted to the outer surface of the workpiece.
In order to prevent interference with the shaft shoulder, the included angle between the sliding groove and the horizontal plane is 55 degrees.
The positioning bolt and the fixing bolt are arranged on two adjacent surfaces of the positioning block, which are 90 degrees to each other.
The utility model has the advantages that: the gauge can meet the detection requirement of fillet pressing amount, can be used for on-site judgment of rolling effect, and can realize rapid detection; through repeated detection before and after rolling, the repeated precision of the gauge is less than 0.01mm, and the precision requirement of the gauge is met.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along the line a-a of fig. 1.
Detailed Description
The utility model is described in detail with reference to the drawings, as shown in the figures, the utility model comprises a dial indicator 1 and a meter frame 3, wherein the meter frame 3 comprises a pair of meter cards 31 which are connected together, a pair of meter ears 32 which are connected together are arranged above the meter cards 31, a sliding groove 33 is arranged at the inner side of each meter ear 32, and a screw hole is arranged on one meter ear; the positioning block 5 is arranged in the sliding groove, and one end of the positioning block is abutted to a positioning bolt 6 screwed in the screw hole; the positioning block is provided with a through hole in the vertical direction, the bushing 4 is arranged in the through hole, and the bushing is sleeved on the gauge rod 11 and is fastened by the fixing bolt 2 screwed on the bushing screw hole 9; the gauge head 7 below the gauge rod 11 is abutted with the pressing fillet 8 of the workpiece 10; the dial indicator 1 is fixed above the indicator rod 11; the meter card 31 is provided with a V-shaped groove, and the V-shaped groove is abutted against the outer surface of the workpiece 10.
In order to prevent interference with the shaft shoulder, the included angle a between the sliding groove and the horizontal plane is 55 degrees.
The positioning bolt 6 and the fixing bolt 2 are arranged on two adjacent surfaces of the positioning block 5 which are at an angle of 90 degrees to each other.
The utility model has the characteristics of it is following:
1. simulating a fillet rolling mode, and designing a special checking fixture according to different crankshaft fillet forms;
2. detecting the fillet before rolling by using a detection tool, carrying out zero alignment on the numerical value of the dial indicator, repeatedly measuring the same position after rolling, wherein the variation value of the dial indicator is the pressing-down value;
3. the measuring angle of the gauge is adjustable according to the rolling force direction;
4. the position of the measuring point is adjustable according to different gear widths.
The utility model discloses a use method:
taking 515 crankshafts as an example, placing the rapid gauge at the position of a shaft neck to be detected during use, positioning by adopting a shoulder end face, aligning and resetting the gauge after positioning, detecting a numerical value before fillet rolling by using the rapid gauge for measuring the pressing amount before crankshaft rolling, detecting a fillet by using the rapid gauge for measuring the pressing amount after rolling, and calculating the pressing amount of the fillet rolling by using the numerical value of the fillet rolling twice. If the fillet rolling angle is different, the fillet rolling angle is adjusted through the positioning block, and the fillet rolling angle is fixed by using screws after adjustment, so that the detection requirement is met.
Claims (3)
1. Utensil is examined fast to bent axle journal fillet roll extrusion decrement, its characterized in that: the dial indicator comprises a dial indicator and an indicator frame, wherein the indicator frame comprises a pair of indicator cards which are connected together, a pair of indicator lugs which are connected together are arranged above the indicator cards, sliding grooves are formed in the inner sides of the indicator lugs, and a screw hole is formed in one of the indicator lugs; the positioning block is arranged in the sliding groove, and one end of the positioning block is abutted to the positioning bolt screwed in the screw hole; the positioning block is provided with a through hole, a bushing is arranged in the through hole, and the bushing is sleeved on the gauge rod and fastened by a fixing bolt screwed in a screw hole of the bushing; a gauge head below the gauge rod is abutted with the pressing fillet of the workpiece; the dial indicator is fixed above the indicator rod; the meter card is provided with a V-shaped groove, and the V-shaped groove is abutted to the outer surface of the workpiece.
2. The rapid gauge for detecting the rolling depression of the fillet of the crankshaft journal as claimed in claim 1, wherein: the spout is 55 degrees with the contained angle of horizontal plane.
3. The rapid gauge for detecting the rolling depression of the fillet of the crankshaft journal as claimed in claim 1, wherein: the positioning bolt and the fixing bolt are arranged on two adjacent surfaces of the positioning block, which are 90 degrees to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104336.3U CN210922455U (en) | 2019-11-29 | 2019-11-29 | Rapid detection tool for rolling and pressing down amount of fillet of crankshaft journal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104336.3U CN210922455U (en) | 2019-11-29 | 2019-11-29 | Rapid detection tool for rolling and pressing down amount of fillet of crankshaft journal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210922455U true CN210922455U (en) | 2020-07-03 |
Family
ID=71346591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922104336.3U Active CN210922455U (en) | 2019-11-29 | 2019-11-29 | Rapid detection tool for rolling and pressing down amount of fillet of crankshaft journal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210922455U (en) |
-
2019
- 2019-11-29 CN CN201922104336.3U patent/CN210922455U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107806807B (en) | The quickly method in detection oscillating bearing gap | |
| CN101634543B (en) | Detection device and detection method of torsional deformation of hoisting hook | |
| CN104501695B (en) | Seam allowance size measuring instrument of chain link | |
| CN102252583A (en) | Fixture for detecting symmetry degree of key slot of automobile engine crankshaft | |
| CN102022991B (en) | Mechanism and method for detecting coplanarity of engine gear train | |
| CN202329471U (en) | Device for adjusting parallelism of common axes of crankshaft | |
| CN205037886U (en) | Gear dual -sided meshing measuring apparatu that in -band hole was detected | |
| CN103234419A (en) | Forging length size online quantifying inspection tool | |
| CN210922455U (en) | Rapid detection tool for rolling and pressing down amount of fillet of crankshaft journal | |
| CN201974150U (en) | Tool for detecting symmetry degree of key slot crankshaft of automobile engine | |
| CN201488679U (en) | Automobile glove box lower support inspecting tool | |
| CN210321590U (en) | Quick qualitative detection device of bent axle blank deflection | |
| CN202361916U (en) | Measuring tool for rapid distance measurement | |
| CN209485229U (en) | A kind of internal spline distance over bar measurement cubing | |
| CN112108843A (en) | Crankshaft machining process | |
| CN109556491B (en) | Forging error checking fixture | |
| CN203981091U (en) | Automobile engine crankshaft center pit cubing structure | |
| CN200950049Y (en) | Device for detecting drum convexity | |
| CN105091863B (en) | Endoporus levelness detecting device and its detection method | |
| US2557702A (en) | Internal gauge | |
| CN215725512U (en) | High-precision gauge | |
| CN210922487U (en) | Crankshaft journal contact area detection tool | |
| CN201715982U (en) | Quick measurement device for length size of small step shaft class product | |
| CN201297908Y (en) | Novel gauge | |
| CN210154504U (en) | Special gauge for shape and position tolerance of piston pin hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |