CN110345832B - High-precision end jump detection device - Google Patents
High-precision end jump detection device Download PDFInfo
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- CN110345832B CN110345832B CN201910732512.XA CN201910732512A CN110345832B CN 110345832 B CN110345832 B CN 110345832B CN 201910732512 A CN201910732512 A CN 201910732512A CN 110345832 B CN110345832 B CN 110345832B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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Abstract
The invention discloses a high-precision end jump detection device, which comprises a power mechanism and a rotating mechanism, wherein an input shaft of the power mechanism is connected with the rotating mechanism through a connecting mechanism; the connecting mechanism comprises a first spline housing, a spline shaft and a second spline housing; one end of the first spline housing is connected with the input shaft, and the other end of the first spline housing is connected with the spline shaft. The high-precision end jump detection device solves the problem that the equipment cannot be produced normally due to the fact that the precision of conventional end jump equipment cannot meet the requirement and the detection data exceeds the set range. The connection floating effect of the runout detection equipment between the power input shaft and the power output shaft is improved, and the combined connection key sleeve has the functions of simplicity in installation, convenience in adjustment, strong self-adaptation capability and the like; the rotary friction block is attached to the workpiece smoothly, so that the workpiece stably rotates, and the testing precision is ensured while the loading environment is restored to the greatest extent.
Description
Technical Field
The invention relates to the technical field of automatic production lines of automobile chassis assembly lines, in particular to a high-precision end jump detection device.
Background
At present, the automation degree of the automobile industry production is required to be higher and higher, the use of the jump detection equipment in an automobile chassis factory is correspondingly and more popular, and the precision requirement is also continuously improved. The conventional end adjusting device is connected on the power input shaft by adopting an elastic coupling, and concentricity of the input end and the output end of the transmission shaft cannot be ensured in the rotation process; meanwhile, the mechanism driving the tested product to rotate during rotation test is an eccentric rotation mechanism, uneven stress in the rotation process is easily caused, the output of equipment end adjustment detection precision and stability data is finally affected, and the detection data value cannot meet the requirement.
Disclosure of Invention
The invention provides a high-precision end jump detection device.
The invention provides the following scheme:
a high precision end-hop detection device, comprising:
the input shaft of the power mechanism is connected with the rotating mechanism through a connecting mechanism;
the connecting mechanism comprises a first spline housing, a spline shaft and a second spline housing; one end of the first spline housing is connected with the input shaft, and the other end of the first spline housing is connected with the spline shaft; one end of the second spline housing is connected with the rotating mechanism, and the other end of the second spline housing is connected with the spline shaft;
the end face of the spline shaft, which is positioned at one end of the inner side of the second spline housing, is connected with a push rod, a ball fixing groove is formed in the inner side of the second spline housing, and balls capable of freely rotating along the inner side of the ball fixing groove are arranged in the ball fixing groove; the end face of the ejector rod is abutted against the ball.
Preferably: the rotating mechanism comprises a workpiece rotation detection shaft, a rotating friction body is sleeved on the workpiece rotation detection shaft, and the front end surface of the rotating friction body protrudes out of the front end surface of the workpiece rotation detection shaft; the rotary friction body is used for abutting against the end face of the inner ring or the outer ring of the bearing of the tested product.
Preferably: and a compression area of the rotary friction body and the inner ring or the outer ring of the bearing is positioned right above the bearing.
Preferably: the rotating mechanism comprises a balancing weight.
Preferably: the rotary friction body is made of polyurethane elastic materials.
Preferably: the device also comprises a stand, wherein the power mechanism and the rotating mechanism are respectively connected with the stand.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, a high-precision end jump detection device can be realized, and in one implementation mode, the device can comprise a power mechanism and a rotating mechanism, wherein an input shaft of the power mechanism is connected with the rotating mechanism through a connecting mechanism; the connecting mechanism comprises a first spline housing, a spline shaft and a second spline housing; one end of the first spline housing is connected with the input shaft, and the other end of the first spline housing is connected with the spline shaft; one end of the second spline housing is connected with the rotating mechanism, and the other end of the second spline housing is connected with the spline shaft; the end face of the spline shaft, which is positioned at one end of the inner side of the second spline housing, is connected with a push rod, a ball fixing groove is formed in the inner side of the second spline housing, and balls capable of freely rotating along the inner side of the ball fixing groove are arranged in the ball fixing groove; the end face of the ejector rod is abutted against the ball. The high-precision end jump detection device solves the problem that the equipment cannot be produced normally due to the fact that the precision of conventional end jump equipment cannot meet the requirement and the detection data exceeds the set range. The connection floating effect of the runout detection equipment between the power input shaft and the power output shaft is improved, and the combined connection key sleeve has the functions of simplicity in installation, convenience in adjustment, strong self-adaptation capability and the like; the rotary friction block is attached to the workpiece smoothly, so that the workpiece stably rotates, and the testing precision is ensured while the loading environment is restored to the greatest extent.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a high-precision end-jump detection device according to an embodiment of the present invention;
FIG. 2 is a top view of a high-precision end-jump detection device according to an embodiment of the present invention;
FIG. 3 is a D-D side cross-sectional view provided by an embodiment of the present invention;
fig. 4 is an enlarged partial view of a provided by an embodiment of the present invention.
In the figure: the device comprises a power mechanism 1, a rotating mechanism 2, a workpiece rotation detecting shaft 201, an input shaft 3, a connecting mechanism 4, a first spline housing 401, a spline shaft 402, a second spline housing 403, a push rod 404, a ball fixing groove 405, balls 406, a rotary friction body 5, a base 6 and a balancing weight 7.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
Examples
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, a high-precision end jump detection device provided by an embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the device includes a power mechanism 1 and a rotation mechanism 2, where an input shaft 3 of the power mechanism 1 is connected with the rotation mechanism 2 through a connection mechanism 4;
the connecting mechanism 4 comprises a first spline housing 401, a spline shaft 402 and a second spline housing 403; one end of the first spline housing 401 is connected with the input shaft 3, and the other end of the first spline housing 401 is connected with the spline shaft 402; one end of the second spline housing 403 is connected to the rotating mechanism 2, and the other end of the second spline housing 403 is connected to the spline shaft 402;
the end face of the spline shaft 402, which is located at one end of the inner side of the second spline housing 403, is connected with a push rod 404, a ball fixing groove 405 is provided on the inner side of the second spline housing 403, and a ball 406 capable of freely rotating along the inner side of the ball fixing groove 405 is provided in the ball fixing groove 405; the end surface of the plunger 404 abuts against the ball 406.
Further, the rotating mechanism 2 comprises a workpiece rotation detecting shaft 201, a rotating friction body 5 is sleeved on the workpiece rotation detecting shaft 201, and the front end surface of the rotating friction body 5 protrudes out of the front end surface of the workpiece rotation detecting shaft 201; the rotary friction body 5 is used for abutting against the end face of the inner ring or the outer ring of the bearing of the tested product. The compression area of the rotary friction body 5 and the inner ring or the outer ring of the bearing is positioned right above the bearing. The rotary friction body 5 is made of polyurethane elastic materials. The rotation mechanism 2 comprises a counterweight 7.
Further, the device also comprises a stand 6, and the power mechanism 1 and the rotating mechanism 2 are respectively connected with the stand 6.
The application provides a high accuracy end jump detection device's coupling mechanism includes connecting spline, cover. The connecting spline and the sleeve are composed of an upper spline sleeve, a lower spline sleeve, a spline shaft and a self-centering ball assembly. The connecting spline and the sleeve are positioned between the input shaft of the end jump device and the rotating mechanism, the connecting mechanism can ensure that the rotating mechanism does not deflect relative to the radial direction of the input shaft, only the proper clearance exists in the axial direction, the radial precision is ensured, the precision of jump detection is ensured, and the self-centering ball assembly avoids the accumulated error caused by the machining error to the greatest extent. The rotary friction block is positioned between the workpiece rotary detection shaft and the workpiece to be measured, the product is driven to rotate by virtue of friction force, the compaction area is positioned right above a bearing contained in the workpiece to be measured, the shaking of the workpiece to be measured caused by centrifugal force is reduced to the greatest extent, the rotary friction block is made of polyurethane elastic materials and is stably contacted with the surface of an inner ring or an outer ring of the bearing, the radial level of the workpiece to be detected is ensured, the workpiece can be driven to rotate by the generated friction force, the unstable factors caused by the gap between the workpiece and the workpiece are compensated, and the loading environment is simulated to the greatest extent. The friction block can rotate according to different rotation modes of the detected product and is in contact with the bearing inner ring or the bearing outer ring, for example, when the detected product needs to rotate around the bearing inner ring, the friction block is abutted against the outer ring of the bearing, when the friction block rotates, the bearing outer ring is driven to rotate relative to the bearing inner ring, and the detected product is fixedly connected with the bearing outer ring, so that the bearing outer ring can drive the detected product to rotate.
The high-precision end jump detection device solves the problem that the equipment cannot be produced normally due to the fact that the precision of conventional end jump equipment cannot meet the requirement and the detection data exceeds the set range. The connection floating effect of the runout detection equipment between the power input shaft and the power output shaft is improved, and the combined connection key sleeve has the functions of simplicity in installation, convenience in adjustment, strong self-adaptation capability and the like; the rotary friction block is attached to the workpiece smoothly, so that the workpiece stably rotates, and the testing precision is ensured while the loading environment is restored to the greatest extent.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a high accuracy end jump detection device which characterized in that includes:
the input shaft of the power mechanism is connected with the rotating mechanism through a connecting mechanism;
the connecting mechanism comprises a first spline housing, a spline shaft and a second spline housing; one end of the first spline housing is connected with the input shaft, and the other end of the first spline housing is connected with the spline shaft; one end of the second spline housing is connected with the rotating mechanism, and the other end of the second spline housing is connected with the spline shaft;
the end face of the spline shaft, which is positioned at one end of the inner side of the second spline housing, is connected with a push rod, a ball fixing groove is formed in the inner side of the second spline housing, and balls capable of freely rotating along the inner side of the ball fixing groove are arranged in the ball fixing groove; the end face of the ejector rod is abutted against the ball;
the rotating mechanism comprises a workpiece rotation detection shaft, a rotating friction body is sleeved on the workpiece rotation detection shaft, and the front end surface of the rotating friction body protrudes out of the front end surface of the workpiece rotation detection shaft; the rotary friction body is used for abutting against the end face of the inner ring or the outer ring of the bearing of the tested product; and a compression area of the rotary friction body and the inner ring or the outer ring of the bearing is positioned right above the bearing.
2. The high-precision end-jump detection device according to claim 1, wherein the rotary friction body is made of polyurethane elastic material.
3. The high precision end-hop detection device of claim 1, wherein the rotation mechanism comprises a counterweight.
4. The high-precision end-jump detection apparatus of claim 1, further comprising a housing, wherein the power mechanism and the rotation mechanism are respectively coupled to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910732512.XA CN110345832B (en) | 2019-08-09 | 2019-08-09 | High-precision end jump detection device |
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| CN201910732512.XA CN110345832B (en) | 2019-08-09 | 2019-08-09 | High-precision end jump detection device |
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| CN110345832A CN110345832A (en) | 2019-10-18 |
| CN110345832B true CN110345832B (en) | 2023-06-23 |
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| CN113009336B (en) * | 2021-02-25 | 2024-02-09 | 长春汽车工业高等专科学校 | New energy automobile motor power detection device with elasticity buffer gear |
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| CN2839610Y (en) * | 2005-09-30 | 2006-11-22 | 浙江锦慈电器有限公司 | A kind of automobile starter |
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| CN105823635A (en) * | 2016-05-17 | 2016-08-03 | 慈兴集团有限公司 | Bearing rotation torque test device |
| CN106346294A (en) * | 2016-11-18 | 2017-01-25 | 成都世唯科技有限公司 | Axial feed mechanism |
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| CN110345832A (en) | 2019-10-18 |
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