CN212378649U - Gauge for measuring position degree of crankshaft timing sprocket after assembly - Google Patents
Gauge for measuring position degree of crankshaft timing sprocket after assembly Download PDFInfo
- Publication number
- CN212378649U CN212378649U CN202021556723.7U CN202021556723U CN212378649U CN 212378649 U CN212378649 U CN 212378649U CN 202021556723 U CN202021556723 U CN 202021556723U CN 212378649 U CN212378649 U CN 212378649U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- block
- frame
- measuring
- positioning
- 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 measure utensil of examining of bent axle timing sprocket post-assembly position degree, examine the utensil and include the connecting rod, establish positioner and measuring device on the connecting rod to and closing device and the gauge stick that use with measuring device are supporting. The positioning device not only axially positions the main shaft of the crankshaft, but also angularly positions the connecting rod neck of the crankshaft, so that the positioning is more accurate, and the measuring accuracy of the measuring device is ensured. During measurement, two measuring rods are selected and respectively placed between the teeth of the timing chain wheel to be measured, the measuring rods are clamped through the pressing device, and the measuring device is used for measuring the position degree of the timing chain wheel assembled on the small end of the crankshaft, so that whether the position degree of the assembled timing chain wheel meets the requirement of a drawing or not is judged. Adopt the utility model discloses examine the position degree of measuring the timing sprocket of assembling to bent epaxial, the deviation of timing sprocket and bent axle connecting rod contained angle promptly, the location is accurate, easy operation, and the measurement cost is low, and the precision is high, and detection efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the automobile parts makes, concretely relates to measure utensil and detection method of examining of automobile crankshaft timing sprocket post-assembly position degree.
Background
The crankshaft is a workpiece with a slender and complex shape, is a long shaft rotating at high speed in an automobile engine, and mainly comprises a main journal, a connecting rod journal, an oil seal journal, a gear journal, a belt pulley shaft, a crank arm and the like.
The crankshaft timing chain wheel is used as timing belt, is an important part of the engine air distribution system, and is connected with the crankshaft and matched with a certain transmission ratio to ensure the accuracy of air inlet and exhaust time.
At present, the position degree of the timing chain wheel of the automobile crankshaft after assembly is detected, and a convenient detection tool does not exist. The most common detection method is platform detection, and tools such as a support frame, a height gauge, a measuring rod, a pressing auxiliary device, a dial indicator and the like are required. During detection, the crankshaft needs to be manually carried to the V-shaped supporting frame of the platform, the compression auxiliary device is used for fixing the measuring rods, the central connecting line of the connecting rod neck and the main shaft neck is adjusted to the horizontal position, the highest points of the measuring rods on two sides are detected, the deflection values of the dial indicators are respectively recorded, the measuring result is calculated through a formula, whether the result is qualified or not is judged, the operation is complicated, the workpiece needs to be offline, and the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art, and provide a measure utensil and detection method of examining of automobile crankshaft timing sprocket post-assembly position degree. The device simple structure, the practicality is strong, can realize the position degree after the on-line measurement car bent axle timing sprocket assembles, detection efficiency is high, is fit for using widely in mass industrial production.
Realize the utility model discloses the technical scheme of purpose is:
a checking fixture for measuring the position degree of a crankshaft timing sprocket after assembly comprises a connecting rod, a positioning device and a measuring device which are arranged on the connecting rod, and a pressing device and a measuring rod which are matched with the measuring device;
the positioning device comprises a first main shaft positioning block, a connecting rod neck positioning frame and a second main shaft positioning block which are arranged on the connecting rod at intervals from left to right, and a connecting rod neck positioning block connected with the connecting rod neck positioning frame;
the first main shaft positioning block and the second main shaft positioning block have the same structure and are in an inverted Y shape, the upper part of the inverted Y-shaped main shaft positioning block is provided with a connecting hole, and the included angle of a V-shaped opening at the lower part is 120 degrees;
the connecting rod neck positioning frame is formed by a longitudinal block and a transverse block in an L shape;
a connecting hole is formed in a longitudinal block of the connecting rod neck positioning frame, an assembly counter bore is longitudinally formed in a transverse block of the connecting rod neck positioning frame, a locking screw is assembled on the counter bore and connected with a connecting rod neck positioning block, and after the connecting rod neck positioning frame is assembled with the connecting rod neck positioning block, the connecting rod neck is angularly positioned through the locking screw;
the measuring device comprises a dial indicator and a gauge frame;
the watch frame is T-shaped and consists of a transverse rod and a longitudinal rod arranged in the middle of the transverse rod;
a connecting hole is formed in a longitudinal rod of the meter frame, mounting holes are longitudinally formed in transverse rods on two sides of the longitudinal rod, and a first dial indicator and a second dial indicator are respectively assembled in the mounting holes;
the first spindle positioning block, the connecting rod neck positioning frame, the second spindle positioning block and the meter frame are connected on the connecting rod in series at intervals from left to right through connecting holes;
the first spindle positioning block, the connecting rod neck positioning frame, the second spindle positioning block and the connecting hole of the meter frame are longitudinally provided with locking screw holes communicated with the first spindle positioning block, the connecting rod neck positioning frame, the second spindle positioning block and the meter frame;
locking screws are respectively arranged in the locking screw holes to lock and fix the first spindle positioning block, the connecting rod neck positioning frame, the second spindle positioning block and the meter frame with the connecting rod;
the pressing device comprises a concave pressing frame, a screw, a spring, a pressing block and a fixing block;
one side of the concave pressing frame is provided with a through hole, a screw passes through the through hole to be assembled with the pressing frame, a spring is sleeved on the screw, and the tail end of the screw is connected with a pressing block;
the other side of the concave pressing frame is provided with a fixed block;
and the compression block and the fixed block compress and position the timing chain wheel to be tested.
Further, the upper part of the first main shaft positioning block is also provided with an axial positioning pin for axially positioning the main shaft.
Furthermore, V-shaped grooves matched with the diameter of the measuring rods are formed in the pressing block and the fixing block and used for clamping the measuring rods on the two sides of the timing chain wheel during measurement, and the measuring rods on the two sides of the timing chain wheel are fixed on a timing chain wheel tooth groove of the timing chain wheel by utilizing the flexibility of the springs sleeved on the screws.
The utility model discloses examine a bent axle that is furnished with standard school table, be used for the proofreading to the percentage table before measuring, guarantee measuring accuracy.
Adopt the utility model discloses when examining utensil measurement assembly to bent epaxial timing sprocket's position degree:
(1) and (3) calibrating before measurement: selecting two measuring rods to be respectively placed between timing sprocket teeth and timing teeth of a crankshaft of a standard calibration meter, clamping the measuring rods through a pressing device, calibrating a dial indicator of a checking tool, and adjusting the readings of the two dial indicators to be consistent with the calibration value of the crankshaft of the standard calibration meter;
(2) workpiece measurement: placing the calibrated checking fixture on a workpiece, selecting two measuring rods to be respectively placed between the timing sprocket teeth and the timing sprocket teeth of the crankshaft to be detected, clamping the measuring rods through a pressing device, and reading the numerical values of two dial indicators;
(3) and (3) reading conversion: and dividing the difference between the numerical values of the two dial indicators by 2 to obtain the actual detection result of the workpiece, and judging whether the position degree of the assembled timing sprocket meets the requirement of a drawing or not according to the result.
The utility model discloses examine first main shaft locating piece, connecting rod neck locating rack and second main shaft locating piece among the utensil positioner and to online bent axle location simultaneously, not only carry out axial positioning to the main shaft, still carry out the angular positioning to bent axle connecting rod neck, the location is more accurate, ensures measuring device measuring accuracy. During measurement, two measuring rods are selected and placed between the teeth of the timing chain wheel respectively, the measuring rods are clamped through the pressing device, and the measuring device is used for measuring the position degree of the timing chain wheel assembled on the small end of the crankshaft, so that whether the position degree of the assembled timing chain wheel meets the requirement of a drawing is judged.
Adopt the utility model discloses examine the position degree of measuring the timing sprocket of assembling to bent epaxial, the deviation of timing sprocket and bent axle connecting rod contained angle promptly, the location is accurate, easy operation, and the measurement cost is low, and the precision is high, and detection efficiency is high.
Drawings
FIG. 1 is a top view of the gauge of the present invention;
FIG. 2 is a view taken along the line A in FIG. 1;
FIG. 3 is a schematic structural diagram of a first spindle positioning block and a second spindle positioning block shown in FIG. 1;
fig. 4 is a schematic structural view of the connecting rod neck positioning frame in fig. 1.
In the figure, a connecting rod 1 and a first main shaft positioning block 1-1 are arranged;
a connecting rod neck positioning frame 1-2, a longitudinal block 1-2-1 and a transverse block 1-2-2;
1-3 of a second main shaft positioning block;
the device comprises a connecting hole 2, a counter bore 3, a connecting rod neck positioning block 4, a dial indicator 5, a first dial indicator 5-1 and a second dial indicator 5-2;
a watch frame 6, a transverse rod 6-1 and a longitudinal rod 6-2;
the device comprises a mounting hole 7, a locking screw hole 8, a locking screw 9, a pressing frame 10, a screw 11, a spring 12, a pressing block 13, a fixed block 14, a measuring rod 15 and a standard meter calibrating crankshaft 16.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, but the present invention is not limited thereto.
Examples
Referring to fig. 1-3, a gauge for measuring the position degree of a crankshaft timing sprocket after assembly comprises a connecting rod 1, a positioning device and a measuring device which are arranged on the connecting rod 1, and a pressing device and a measuring rod 15 which are matched with the measuring device;
the positioning device comprises a first main shaft positioning block 1-1, a connecting rod neck positioning frame 1-2, a second main shaft positioning block 1-3 and a connecting rod neck positioning block 4 connected with the connecting rod neck positioning frame 1-2, wherein the first main shaft positioning block, the connecting rod neck positioning frame 1-2 and the second main shaft positioning block are arranged on the connecting rod 1 at intervals from left to right;
the first main shaft positioning block 1-1 and the second main shaft positioning block 1-3 are identical in structure and are in an inverted Y shape, the upper portion of the inverted Y-shaped main shaft positioning block is provided with a connecting hole 2, and the included angle of a V-shaped opening at the lower portion is 120 degrees;
the connecting rod neck positioning frame 1-2 is formed by a longitudinal block 1-2-1 and a transverse block 1-2-2 in an L shape;
a connecting hole 2 is formed in a longitudinal block 1-2-1 of a connecting rod neck positioning frame 1-2, an assembly counter bore 3 is longitudinally formed in a transverse block 1-2-2 of the connecting rod neck positioning frame 1-2, a locking screw 9 is assembled on the counter bore 3 and connected with a connecting rod neck positioning block 4, and after the connecting rod neck positioning frame 1-2 and the connecting rod neck positioning block 4 are assembled, the connecting rod neck is angularly positioned through the locking screw 9;
the measuring device comprises a dial indicator 5 and an indicator frame 6;
the watch frame 6 is T-shaped and consists of a transverse rod 6-1 and a longitudinal rod 6-2 arranged in the middle of the transverse rod 6-1;
a connecting hole 2 is formed in a longitudinal rod 6-2 of the gauge stand 6, mounting holes 7 are longitudinally formed in transverse rods 6-1 on two sides of the longitudinal rod 6-2, and a first dial indicator 5-1 and a second dial indicator 5-2 are respectively assembled in the mounting holes 7;
the first spindle positioning block 1-1, the connecting rod neck positioning frame 1-2, the second spindle positioning block 1-3 and the meter frame 6 are connected on the connecting rod 1 in series at intervals from left to right through the connecting hole 2;
the first main shaft positioning block 1-1, the connecting rod neck positioning frame 1-2, the second main shaft positioning block 1-3 and the connecting hole 2 of the meter frame 6 are longitudinally provided with locking screw holes 8 communicated with the first main shaft positioning block, the connecting rod neck positioning frame 1-2 and the meter frame 6;
the pressing device comprises a concave pressing frame 10, a screw 11, a spring 12, a pressing block 13 and a fixing block 14;
a through hole is formed in one side of the concave pressing frame 10, a screw 11 penetrates through the through hole to be assembled with the pressing frame 10, a spring 12 is sleeved on the screw 11, and the tail end of the screw 11 is connected with a pressing block 13;
the other side of the concave pressing frame 10 is provided with a fixing block 14;
the compression block 13 and the fixed block 14 compress and position the timing chain wheel to be measured.
The upper part of the first main shaft positioning block 1-1 is also provided with an axial positioning pin 1-1-2 for axially positioning the main shaft.
V-shaped grooves (not marked in the figure) matched with the diameter of the measuring rods 15 are formed in the pressing block 13 and the fixing block 14, the measuring rods 15 on the two sides of the timing chain wheel are clamped during measurement, and the measuring rods on the two sides of the timing chain wheel are fixed on the tooth grooves of the timing chain wheel by utilizing the flexibility of the spring sleeved on the screw.
The utility model discloses examine a bent axle 16 that is furnished with standard school table, be used for the proofreading to percentage table 5 before the measurement, guarantee the measuring accuracy.
Adopt the utility model discloses examine the position degree of measuring the timing sprocket of assembling to bent epaxial, but online real-time measurement can in time discover the quality problems in the production, has reduced the risk that traditional platform detection method can not discover quality problems in the production process fast. Is suitable for popularization and application in mass industrial production.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.
Claims (3)
1. The utility model provides a measure utensil of examining of bent axle timing sprocket post-assembly position degree which characterized in that: the gauge comprises a connecting rod (1), a positioning device and a measuring device which are arranged on the connecting rod (1), and a pressing device and a measuring rod (15) which are matched with the measuring device;
the positioning device comprises a first main shaft positioning block (1-1), a connecting rod neck positioning frame (1-2), a second main shaft positioning block (1-3) and a connecting rod neck positioning block (4), wherein the first main shaft positioning block, the connecting rod neck positioning frame (1-2) and the second main shaft positioning block are arranged on the connecting rod (1) at intervals from left to right;
the first main shaft positioning block (1-1) and the second main shaft positioning block (1-3) are identical in structure and are in an inverted Y shape, a connecting hole (2) is formed in the upper portion of the inverted Y-shaped main shaft positioning block, and the included angle of a V-shaped opening in the lower portion is 120 degrees;
the connecting rod neck positioning frame (1-2) is formed by a longitudinal block (1-2-1) and a transverse block (1-2-2) in an L shape;
a connecting hole (2) is formed in a longitudinal block (1-2-1) of a connecting rod neck positioning frame (1-2), an assembly counter bore (3) is longitudinally formed in a transverse block (1-2-2) of the connecting rod neck positioning frame (1-2), a locking screw (9) is assembled on the counter bore (3) and connected with a connecting rod neck positioning block (4), and after the connecting rod neck positioning frame (1-2) is assembled with the connecting rod neck positioning block (4), the connecting rod neck is angularly positioned through the locking screw (9);
the measuring device comprises a dial indicator (5) and an indicator frame (6);
the watch frame (6) is T-shaped and consists of a transverse rod (6-1) and a longitudinal rod (6-2) arranged in the middle of the transverse rod (6-1);
a connecting hole (2) is formed in a longitudinal rod (6-2) of the gauge stand (6), mounting holes (7) are longitudinally formed in transverse rods (6-1) on two sides of the longitudinal rod (6-2), and a first dial indicator (5-1) and a second dial indicator (5-2) are respectively assembled in the mounting holes (7);
the first spindle positioning block (1-1), the connecting rod neck positioning frame (1-2), the second spindle positioning block (1-3) and the meter frame (6) are connected on the connecting rod (1) in series at intervals from left to right through the connecting hole (2);
the first main shaft positioning block (1-1), the connecting rod neck positioning frame (1-2), the second main shaft positioning block (1-3) and the connecting hole (2) of the meter frame (6) are longitudinally provided with locking screw holes (8) communicated with the first main shaft positioning block, the connecting rod neck positioning frame and the meter frame;
locking screws (9) are respectively arranged in the locking screw holes (8) to lock and fix the first spindle positioning block (1-1), the connecting rod neck positioning frame (1-2), the second spindle positioning block (1-3) and the meter frame (6) with the connecting rod (1);
the pressing device comprises a concave pressing frame (10), a screw (11), a spring (12), a pressing block (13) and a fixing block (14);
one side of the concave pressing frame (10) is provided with a through hole, a screw (11) penetrates through the through hole to be assembled with the pressing frame (10), a spring (12) is sleeved on the screw (11), and the tail end of the screw (11) is connected with a pressing block (13);
a fixed block (14) is assembled on the other side of the concave pressing frame (10);
and the compression block (13) and the fixed block (14) compress and position the timing chain wheel to be measured.
2. The measuring tool for measuring the assembled position degree of the crankshaft timing chain wheel as claimed in claim 1, wherein: the upper part of the first main shaft positioning block (1-1) is also provided with an axial positioning pin (1-1-2) for axially positioning the main shaft.
3. The measuring tool for measuring the assembled position degree of the crankshaft timing chain wheel as claimed in claim 1, wherein: v-shaped grooves matched with the diameter of the measuring rods (15) are formed in the pressing block (13) and the fixing block (14) and used for clamping the measuring rods (15) on the two sides of the timing chain wheel during measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556723.7U CN212378649U (en) | 2020-07-31 | 2020-07-31 | Gauge for measuring position degree of crankshaft timing sprocket after assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556723.7U CN212378649U (en) | 2020-07-31 | 2020-07-31 | Gauge for measuring position degree of crankshaft timing sprocket after assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212378649U true CN212378649U (en) | 2021-01-19 |
Family
ID=74172263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021556723.7U Active CN212378649U (en) | 2020-07-31 | 2020-07-31 | Gauge for measuring position degree of crankshaft timing sprocket after assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212378649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838637A (en) * | 2022-03-02 | 2022-08-02 | 襄阳福达东康曲轴有限公司 | Detection tool and method for detecting square groove of fifth balance block of crankshaft |
-
2020
- 2020-07-31 CN CN202021556723.7U patent/CN212378649U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838637A (en) * | 2022-03-02 | 2022-08-02 | 襄阳福达东康曲轴有限公司 | Detection tool and method for detecting square groove of fifth balance block of crankshaft |
| CN114838637B (en) * | 2022-03-02 | 2023-12-19 | 襄阳福达东康曲轴有限公司 | Gauge and method for detecting square groove of fifth balancing block of crankshaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107514965B (en) | Crankshaft main journal roundness and crankshaft coaxiality error detection device | |
| CN211085003U (en) | Device for detecting angle consistency of eccentric circumferential position of crankshaft by using yaw meter | |
| CN110160454A (en) | A kind of bearing assembly clearance on-line measurement machine and its clearance measurement method | |
| CN212378649U (en) | Gauge for measuring position degree of crankshaft timing sprocket after assembly | |
| CN207936891U (en) | A kind of instrument for measuring pitch diameter of internal thread | |
| CN107228614B (en) | Detection device and detection method for phase angle of six-cylinder crankshaft | |
| CN217786037U (en) | Herringbone gear equal-height detection device | |
| CN216694778U (en) | Threaded hole depth and perpendicularity detection device | |
| CN215338127U (en) | Profile tolerance gauge | |
| CN201555539U (en) | Air valve check tool | |
| CN211717320U (en) | Utensil is examined to bevel gear | |
| CN106596004B (en) | RV reduction gear supports rigidity testing arrangement | |
| CN210486752U (en) | Detection apparatus for bent axle locating surface and axle center interval | |
| CN110806165B (en) | Tool and method for measuring perpendicularity between hole and end plane | |
| CN210198267U (en) | Planetary gear M value testing fixture | |
| CN209737000U (en) | Coaxiality adjusting mechanism for thin and short shafts | |
| CN216898646U (en) | Precision measuring device for machining air condition compressor crankshaft | |
| CN211626362U (en) | Engine cooling water pump impeller conical surface angle measuring device | |
| CN212747633U (en) | Crankshaft tail groove angle checking fixture | |
| CN218822120U (en) | Speed reducer crankshaft detection device | |
| CN214723664U (en) | Sensor slider height measurement anchor clamps | |
| CN205245927U (en) | 0. 7 size in measurable quantity terminal surface tooth examine utensil | |
| CN212721196U (en) | Gear rapid detection device that beats | |
| CN216745867U (en) | Inner gear ring M value measuring device | |
| CN220829159U (en) | Device for rapidly measuring axial thrust surface spacing of stepped shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |