CN209927067U - Parallelism measuring device - Google Patents
Parallelism measuring device Download PDFInfo
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- CN209927067U CN209927067U CN201920803623.0U CN201920803623U CN209927067U CN 209927067 U CN209927067 U CN 209927067U CN 201920803623 U CN201920803623 U CN 201920803623U CN 209927067 U CN209927067 U CN 209927067U
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Abstract
The utility model relates to a depth of parallelism measuring device, including C shape frame, datum plate and detecting instrument are installed respectively to the tip of two cantilevers of C shape frame, datum plate and detecting instrument laminate with two planes that await measuring respectively, and at least one of them cantilever is for the movable cantilever with C shape frame main part swing joint. The utility model discloses a high accuracy benchmark board and instrumentation cooperation realize the measurement of two plane parallelities, and overall structure is simple, and the simple operation can effectively promote the measurement of parallelism detection efficiency and detect the precision, and the commonality is high.
Description
Technical Field
The utility model belongs to the technical field of measure, in particular to parallelism measuring device who carries out the parallelism detection to the wheel radials.
Background
According to the technical condition of temporary driving of wheels of a motor train unit TJ/CL 275A-2016, 10% sampling inspection is carried out on the parallelism of wheel webs of the motor train unit wheels, and currently, three coordinates are generally adopted to measure the parallelism of the wheel webs. Adopt the three-dimensional to measure, it is consuming time longer, can't satisfy the quick selective examination needs of wheel radials depth of parallelism, need carry out the round trip transportation in factory's room simultaneously, consume more time, can't feed back processingquality fast, arouse batch wheel quality problem easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a simple structure, convenient operation, can improve measurement of efficiency's depth of parallelism measuring device.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a parallelism measuring device, includes C shape frame, datum plate and instrumentation are installed respectively to the tip of two cantilevers of C shape frame, datum plate and instrumentation laminate with two planes that await measuring respectively, and at least one of them cantilever is for the movable cantilever with C shape frame main part swing joint.
Further, the reference plate is detachably mounted on the C-shaped frame.
Furthermore, the reference plate is of a pi-shaped structure and consists of a bottom plate and two parallel mounting plates arranged above the bottom plate, the two mounting plates are detachably connected with the C-shaped frame, and the lower surface of the bottom plate is a reference binding surface.
Further, the datum plate is made of a nodular cast iron material, or the binding surface of the datum plate is made of a nodular cast iron material.
Further, an end portion of the arm to which the instrumentation instrument is attached has an attachment portion bent to one side, and a probe of the instrumentation instrument is attached to the attachment portion.
Furthermore, a limit stop is arranged on the main body of the C-shaped frame corresponding to the movable cantilever, the limit stop is used for limiting the fixed angle of the movable cantilever, and the movable cantilever is fixed with the main body of the C-shaped frame or the limit stop through a locking structure.
Furthermore, one end of the movable cantilever is movably connected with the main body of the C-shaped frame through a rotating shaft.
Furthermore, a plurality of lightening holes are arranged on the C-shaped frame.
Further, the C-shaped frame is made of aluminum.
Further, a digital display is mounted on the C-shaped frame.
To sum up, the utility model provides a pair of parallelism measuring device adopts high accuracy benchmark board and instrumentation cooperation, realizes like the measurement of two parallel plane parallels such as wheel radials, and overall structure is simple, and the simple operation can effectively promote the measurement efficiency and the detection precision that the parallelism detected, and the commonality is high.
Drawings
Fig. 1 is a schematic view of the structure of the lifting appliance of the present invention.
As shown in fig. 1, the device comprises a C-shaped frame 1, a fixed cantilever 1a, a movable cantilever 1b, a reference plate 2, a bottom plate 2a, a mounting plate 2b, a reference binding surface 2C, a detection instrument 3, a lightening hole 4, a limit stop 5, a digital display 6 and a rotating shaft 7.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
as shown in fig. 1, the utility model provides a pair of parallelism measuring device, the main part of device is a C shape frame 1, and C shape frame 1 preferably adopts the aluminum product, is made by the aluminum plate that has certain thickness, is provided with a plurality of lightening holes 4 on C shape frame 1, has both guaranteed holistic structural strength, prevents that the structure is out of shape, can lighten the weight of device as far as possible again to make things convenient for the handheld operation of operating personnel. The structure of the C-shaped frame 1 is beneficial to enabling the device to bypass the wheel rim of the wheel and extend into the position of the middle plane to be detected, and detection is convenient.
The C-shaped frame 1 comprises an upper cantilever and a lower cantilever, for the convenience of detection, preferably, one cantilever is a fixed cantilever 1a, the other cantilever is a movable cantilever 1b, and the movable cantilever 1b can freely rotate around a fixed fulcrum relative to the fixed cantilever 1 a. Reference plate 2 is installed to the tip of fixed cantilever 1a, has the benchmark binding face 2c with the plane laminating that awaits measuring on the reference plate 2, and instrumentation 3 is installed to the tip of activity cantilever 1b, and instrumentation 3 preferably adopts the percentage table, and reference plate 2's benchmark binding face 2c and instrumentation 3 are laminated with two planes that await measuring respectively, and reference plate 2 is on last plane, and instrumentation 3 is on the plane down. In this embodiment, the two planes to be measured are two side faces of the wheel web.
Wherein, benchmark board 2 demountable installation is on fixed cantilever 1a, and is preferred, and benchmark board 2 is pi shape structure, comprises bottom plate 2a and mounting panel 2b, and the lower surface of bottom plate 2a is the benchmark binding face 2c with the plane laminating that awaits measuring, and its flatness is not more than 0.02 to guarantee measurement accuracy. Two parallel mounting plates 2b are arranged above the bottom plate 2a, and the end part of the fixed cantilever 1a is inserted between the two mounting plates 2b and then fixedly connected through a bolt.
In the present embodiment, it is preferable that the reference plate 1 is made of a nodular cast iron material, or only the bottom plate 2a serving as the reference abutting surface 2c is made of a nodular cast iron material, and two mounting plates 2b are welded above the bottom plate 2a, and the mounting plates 2b are made of an aluminum material. The reference binding surface 2c is tightly bound on the plane to be measured during measurement, and the adopted ball-milling cast iron material has a lubricating function, so that the friction during sliding is reduced, and the smoothness of measurement is ensured.
In the embodiment, preferably, the dial indicator is movably mounted on the movable cantilever 1b, so that the dial indicator can freely move in a direction perpendicular to the reference abutting surface 2c, and measurement of the webs with different thicknesses can be realized. The movable mounting structure can be characterized in that a sliding rail is arranged on the movable cantilever 1b, a base of the dial indicator is slidably mounted on the sliding rail, and the dial indicator is fixed through a fastening screw after the dial indicator is moved in place. The end part of the movable cantilever 1b for mounting the detection instrument 3 is provided with a mounting part (not marked in the figure) bent towards one side, a through hole is formed in the mounting part, a probe of the detection instrument 3 passes through the through hole to be attached to a plane to be detected, and the through hole plays a certain role in protecting and limiting the probe.
The main body of the C-shaped frame 1 is provided with a limit stop 5 corresponding to the movable cantilever 1b, the limit stop 5 is mounted on the main body of the C-shaped frame 1 through a bolt, and the limit stop 5 is used for limiting the fixed angle of the movable cantilever 1b, so that the movable cantilever 1b is ensured to be parallel to the fixed cantilever 1a after rotating to the position, and the detection precision is ensured.
One end of the movable cantilever 1b is movably connected with the main body of the C-shaped frame 1 through a rotating shaft 7, and the rotating shaft 7 can extend out of the side surface of the C-shaped frame 1, so that the movable cantilever 1b can freely rotate in the vertical direction (namely the direction vertical to the reference binding surface 2C) relative to the main body of the C-shaped frame 1. The pivot 7 may be provided in a vertically extending configuration so that the movable arm 1b is arbitrarily pivoted in the horizontal direction (i.e., the direction parallel to the reference abutment surface 2C) with respect to the main body of the C-shaped frame 1.
The movable cantilever 1b is fixed with the main body of the C-shaped frame 1 through a locking structure, the locking structure can be selected as a bolt, and correspondingly, a threaded hole is formed in the movable cantilever 1 b.
In order to facilitate the operation of an operator, the reference plate 2 is arranged on the upper portion and the dial indicator is arranged on the lower portion during the measurement, so that the operator cannot conveniently check the data of the dial indicator.
The measurement process is as follows:
during measurement, the movable cantilever 1b is rotated to one side, the C-shaped frame 1 is stretched into the position of a wheel spoke plate, the reference binding surface 2C of the reference plate 2 is bound on the side surface of the spoke plate, then the movable cantilever 1b is rotated to the test position and is bound with the limit stop 5 and locked, the dial indicator is adjusted to be perpendicular to the measurement plane and fixed, S-shaped rotation is carried out around the circumference of the wheel, and the difference of the maximum value and the minimum value of jumping in the whole process is taken as the parallelism.
The device adopts high accuracy benchmark board and instrumentation cooperation, realizes like the measurement of two parallel plane parallelisms such as wheel radials, and overall structure is simple, the simple operation, can effectively promote the measurement of parallelism detection efficiency and detection precision, and the commonality is high, except can detecting the parallelisms of wheel radials, also can be used to detect the parallelisms of other two arbitrary parallel planes.
Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A parallelism measuring apparatus, characterized in that: including C shape frame, benchmark board and instrumentation are installed respectively to the tip of two cantilevers of C shape frame, benchmark board and instrumentation laminate with two planes that await measuring respectively, and at least one of them cantilever is for the movable cantilever with C shape frame main part swing joint.
2. A parallelism measuring apparatus according to claim 1, characterized in that: the reference plate is detachably mounted on the C-shaped frame.
3. A parallelism measuring apparatus according to claim 2, characterized in that: the reference plate is of a pi-shaped structure and is composed of a bottom plate and two parallel mounting plates arranged above the bottom plate, the two mounting plates are detachably connected with the C-shaped frame, and the lower surface of the bottom plate is a reference binding surface.
4. A parallelism measuring apparatus according to claim 1, characterized in that: the datum plate is made of nodular cast iron materials, or the binding surface of the datum plate is made of the nodular cast iron materials.
5. A parallelism measuring apparatus according to claim 1, characterized in that: the detecting instrument can be movably arranged at the end part of the cantilever and can move along the direction vertical to the binding surface of the reference plate.
6. A parallelism measuring apparatus according to claim 1, characterized in that: and the main body of the C-shaped frame is provided with a limit stop corresponding to the movable cantilever, the limit stop is used for limiting the fixed angle of the movable cantilever, and the movable cantilever is fixed with the main body of the C-shaped frame or the limit stop through a locking structure.
7. A parallelism measuring apparatus according to claim 1, characterized in that: one end of the movable cantilever is movably connected with the main body of the C-shaped frame through a rotating shaft.
8. A parallelism measuring apparatus according to claim 1, characterized in that: and a plurality of lightening holes are formed in the C-shaped frame.
9. A parallelism measuring apparatus according to claim 1, characterized in that: the C-shaped frame is made of aluminum.
10. A parallelism measuring apparatus according to claim 1, characterized in that: and a digital display is arranged on the C-shaped frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803623.0U CN209927067U (en) | 2019-05-30 | 2019-05-30 | Parallelism measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803623.0U CN209927067U (en) | 2019-05-30 | 2019-05-30 | Parallelism measuring device |
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| CN209927067U true CN209927067U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532366A (en) * | 2020-04-13 | 2021-10-22 | 中车青岛四方机车车辆股份有限公司 | Parallelism detection device and method |
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- 2019-05-30 CN CN201920803623.0U patent/CN209927067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532366A (en) * | 2020-04-13 | 2021-10-22 | 中车青岛四方机车车辆股份有限公司 | Parallelism detection device and method |
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