CN217331015U

CN217331015U - Three-pin shaft indexing detection tool

Info

Publication number: CN217331015U
Application number: CN202220629835.3U
Authority: CN
Inventors: 曹勇章
Original assignee: Pinghu Yuda Precision Machinery Co ltd
Current assignee: Pinghu Yuda Precision Machinery Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-30
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses a three round pin axle graduation detects instrument, including examining test table, examine test table and go up rotatable the installing carousel, be equipped with the positioning fixture who is used for fixed three round pin axles on the carousel, positioning fixture centers around three splint around the center pin including the center pin with the coaxial setting of carousel and even interval, the lower extreme detachable of splint installs on the carousel, the both sides of splint are from up shrinking gradually down, examine and install the fixed column on the test table, be equipped with the slide rail on the fixed column, the slider is installed in the cooperation on the slide rail, fixedly connected with micrometer on the slider, the measuring stick of micrometer can the perpendicular contact axle journal of three round pin axles respectively after rotating the carousel. The utility model discloses a three round pin axle graduation detects instrument can be used for the appearance data detection of the three round pin axle of various models, and the material loading, location and the unloading of three round pin axles are all very convenient in the testing process, the effectual universality and the operation convenience that have improved and examined the utensil.

Description

Three-pin shaft indexing detection tool

Technical Field

The utility model belongs to the technical field of the detection instrument, concretely relates to three round pin axle graduation detection instrument.

Background

The three-pin shaft is an important part of a car constant velocity universal joint transmission shaft moving joint and is used for being matched with a three-pin shaft fork to form a three-locking joint, and power generated by an automobile engine is transmitted to an automobile wheel shaft to play a role in transmitting power. The three-pin shaft comprises a shaft body and three shaft necks which are uniformly distributed at equal intervals around the shaft body. The mechanical performance and the appearance structure of the three-pin shaft are very strict, a strict manufacturing process is required, and the requirements on the concentricity and the coaxiality of a product are high in the production process. The three-pin shaft has different specifications, and a set of special checking fixture is required to be manufactured when the three-pin shaft of each specification is used for measuring the indexing size of the journal, so that the checking fixture has poor universality. And the existing special checking tool is inconvenient to operate and has low detection efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a technical scheme is: three round pin axle graduation detects instrument, including examining test table, examine rotatable the installing carousel on the test table, be equipped with the positioning fixture who is used for fixed three round pin axles on the carousel, positioning fixture centers on three splint around the center pin with even interval with the coaxial center pin that sets up of carousel, the lower extreme detachable of splint installs on the carousel, the both sides of splint are from up contracting gradually down, examine and install the fixed column on the test table, be equipped with the slide rail on the fixed column, the slider is installed in the cooperation on the slide rail, fixedly connected with micrometer on the slider, the measuring stick of micrometer can the journal of perpendicular contact three round pin axles respectively after rotating the carousel.

Preferably, the detection table is provided with a circular mounting groove, the turntable is rotatably mounted in the circular mounting groove through a bearing, a positioning pin hole is formed in the wall of the circular mounting groove, a positioning pin is arranged in the positioning pin hole, a long hole communicated with the positioning pin hole is formed in the table top of the detection table, a pull rod is inserted into the long hole and fixedly connected with the positioning pin, a spring is mounted in the positioning pin hole, three positioning holes for inserting the positioning pin are formed in the circumferential surface of the turntable, and when the positioning pin is inserted into one of the positioning holes, the measuring rod of the micrometer is perpendicular to one shaft neck of the three pin shafts.

Preferably, the periphery of the upper surface of the turntable is uniformly provided with a plurality of bulges at intervals.

Preferably, as above-mentioned technical scheme, magnet is installed to the upper end of fixed column, the slider is followed the top of slide rail and is held by magnet.

As the optimization of the technical scheme, the limiting pins for limiting the height of the sliding block are installed on the fixing column, and a plurality of limiting jacks for respectively allowing the limiting pins to be inserted are arranged on the fixing column from bottom to top at uniform intervals.

Preferably, a handle is mounted on one side of the slider.

Preferably, a buffer pad is arranged below the slide block and fixed on the detection table.

Preferably, the lower end of the clamping plate is connected with at least two plug-in connection columns, and the rotary plate is provided with a plurality of plug-in connection grooves for the plug-in connection columns to be inserted into.

As the optimization of the technical scheme, the three-pin-shaft indexing detection tool comprises a plurality of sets of clamping plates, each set of clamping plate is composed of three clamping plates with the same size, and the clamping plates of different sets are different in size.

The utility model has the advantages that: the utility model discloses a three round pin axle graduation detects instrument can be used for the appearance data detection of the three round pin axle of various models, and the material loading, location and the unloading of three round pin axles are all very convenient in the testing process, the effectual universality and the operation convenience that have improved and examined the utensil.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of a fixing column.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the three-pin indexing detection tool comprises a detection table 1, a rotary table 2 is rotatably mounted on the detection table 1, a positioning fixture for fixing the three-pin shaft 3 is arranged on the rotary table 2, the positioning fixture comprises a central shaft 4 coaxially arranged with the rotary table 2 and three clamping plates 5 uniformly surrounding the central shaft 4 at intervals, the lower ends of the clamping plates 5 are fixed on the rotary table 2, two sides of each clamping plate 5 gradually contract from bottom to top, a fixed column 6 is mounted on the detection table 1, a sliding rail is arranged on each fixed column 6, a sliding block 7 is mounted on each sliding rail in a matched manner, a micrometer 8 is fixedly connected onto each sliding block 7, and measuring rods 9 of the micrometer 8 can respectively vertically contact with shaft necks 10 of the three-pin shaft 3 after the rotary table 2 is rotated. The three-pin shaft 3 is placed on the turntable 2, so that the central shaft 4 is inserted into the three-pin shaft 3, and the shaft necks 10 of the three-pin shaft 3 are respectively clamped between the adjacent clamping plates 5 to form positioning. The turntable 2 is rotated so that one of the journals 10 is perpendicular to the measuring rod 9 of the micrometer 8. At this time, the slider 7 is moved so that the measuring rod 9 comes into contact with the journal 10, and the micrometer 8 is read and recorded. The turntable 2 is rotated and the remaining journals 10 are measured in turn until all test data is obtained.

Further, be equipped with circular mounting groove 11 on examining test table 1, carousel 2 passes through the rotatable installation of bearing in circular mounting groove 11, be equipped with the locating pin hole on the cell wall of circular mounting groove 11, be equipped with locating pin 12 in the locating pin hole, examine and be equipped with rectangular hole 13 that communicates the locating pin hole on the mesa of test table 1, rectangular hole 13 interpolation has pull rod 14, and pull rod 14 fixed connection locating pin 12 installs spring 15 in the locating pin hole, be equipped with three locating hole 16 that supply locating pin 12 to insert respectively on the periphery of carousel 2, when locating pin 12 inserts one of them locating hole 16, measuring stick 9 of micrometer 8 is perpendicular with a journal 10 of three round pin axles 3. After the turntable 2 rotates to the position hole 16 and the positioning pin 12 are aligned, the positioning pin 12 is inserted into the position hole 16 under the action of the elastic force of the spring 15, then the turntable 2 cannot rotate any more, and the micrometer 8 can be conveniently moved to measure. The positioning pin 12 is pulled by the pull rod 14 so that the positioning pin 12 exits the positioning hole 16, and the turntable 2 can continue to rotate until the next positioning hole 16 is aligned with the positioning pin 12.

Furthermore, a plurality of bulges 17 are uniformly arranged on the periphery of the upper surface of the turntable 2 at intervals. The protrusions 17 may facilitate rotation of the turntable 2.

Further, a magnet 18 is installed at the upper end of the fixed column 6, and the slider 7 is attracted by the magnet 18 after moving to the uppermost end of the slide rail. When the micrometer 8 is used for measurement, the slide block 7 is pressed down with force, so that the slide block 7 can move downwards. Without moving the slider 7 back up, the slider 7 is attracted by the magnet 18. At this time, the three pin shafts 3 can be conveniently replaced with new ones for measurement.

Furthermore, a limiting pin 19 for limiting the height of the sliding block 7 is mounted on the fixed column 6, and a plurality of limiting insertion holes 20 for respectively allowing the limiting pin 19 to insert are uniformly arranged on the fixed column 6 from bottom to top at intervals. The limit pin 19 can limit the maximum height of the slide 7 to be lowered, so that the slide 7 can move in a minimum stroke. The slide block 7 is prevented from being grabbed and directly sliding downwards to impact the detection table 1 due to too large height, so that the micrometer 8 is prevented from being damaged.

Further, a handle 21 is mounted on one side of the slider 7. The handle 21 facilitates the movement of the slider 7.

Furthermore, a buffer pad 22 is arranged below the slide block 7, and the buffer pad 22 is fixed on the detection table 1. The cushion pad 22 plays a role of safety protection, and prevents the micrometer 8 from being damaged by collision when the limit pin 19 is not inserted into the limit jack 20 for limiting.

Furthermore, the lower end of the clamping plate 5 is connected with at least two insertion columns, and the rotary disc 2 is provided with a plurality of insertion grooves for the insertion columns to insert into respectively.

Furthermore, the three-pin-shaft indexing detection tool comprises a plurality of sets of clamping plates 5, each set of clamping plate 5 consists of three clamping plates 5 with the same size, and the clamping plates 5 in different sets have different sizes. The clamping plates 5 of different sets correspond to the three-pin shaft 3 of one specification, so that after the model of the three-pin shaft 3 is changed, only the corresponding clamping plate 5 needs to be replaced. Each set of clamping plates 5 corresponds to a three-pin shaft 3 of one specification.

It is worth mentioning that the technical features such as the micrometer 8 and the like related to the patent application of the present invention should be regarded as the prior art, and the specific structure, the working principle of these technical features and the control mode and the space arrangement mode that may be related to adopt the conventional selection in the field, should not be regarded as the invention point of the present invention, and the present invention does not further specifically expand the detailed description.

Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logical analysis, reasoning or limited experiments based on the prior art are intended to be within the scope of protection defined by the claims.

Claims

1. Three round pin axle graduation detection instrument, a serial communication port, including examining test table, examine rotatable the installing carousel on the test table, be equipped with the positioning fixture who is used for fixed three round pin axles on the carousel, positioning fixture centers around three splint around the center pin with even interval with the coaxial center pin that sets up of carousel, the lower extreme demountable installation of splint is on the carousel, the both sides of splint shrink gradually from down, examine and install the fixed column on the test table, be equipped with the slide rail on the fixed column, the slider is installed in the cooperation on the slide rail, fixedly connected with micrometer on the slider, the measuring stick of micrometer can the perpendicular contact axle journal of three round pin axles respectively after rotating the carousel.

2. The three-pin indexing testing tool according to claim 1, wherein the testing table has a circular mounting groove, the turntable is rotatably mounted in the circular mounting groove through a bearing, a positioning pin hole is formed in a wall of the circular mounting groove, a positioning pin is disposed in the positioning pin hole, a long hole communicating with the positioning pin hole is formed in a table top of the testing table, a pull rod is inserted in the long hole, the pull rod is fixedly connected with the positioning pin, a spring is mounted in the positioning pin hole, three positioning holes are formed in a circumferential surface of the turntable, into which the positioning pin is inserted, and when the positioning pin is inserted into one of the positioning holes, the measuring rod of the micrometer is perpendicular to a journal of the three-pin.

3. The three-pin index detection tool of claim 2, wherein a plurality of protrusions are uniformly spaced around the upper surface of the turntable.

4. The three-pin index detection tool according to claim 1, wherein a magnet is mounted on an upper end of the fixed column, and the slider is attracted by the magnet after moving to the uppermost end of the slide rail.

5. The three-pin index detection tool according to claim 4, wherein the fixed column is provided with a limit pin for limiting the height of the slide block, and a plurality of limit insertion holes for allowing the limit pins to be inserted in difference are uniformly arranged on the fixed column from bottom to top at intervals.

6. The three-pin index detection tool of claim 5, wherein a handle is mounted to one side of said slide.

7. The tool of claim 6, wherein a cushion is provided under the slide block, and the cushion is fixed on the test table.

8. The indexing testing tool for the triple-pin shaft according to claim 1, wherein at least two insertion posts are connected to the lower end of the clamping plate, and a plurality of insertion grooves into which the insertion posts are respectively inserted are formed in the rotary plate.

9. The three-pin index detection tool of claim 8, wherein the three-pin index detection tool comprises a plurality of sets of clamping plates, each set of clamping plates comprising three clamping plates of equal size, the clamping plates of different sets of clamping plates being of different sizes.