CN116989631A

CN116989631A - Gauge for detecting semi-axis sealing groove and detection method thereof

Info

Publication number: CN116989631A
Application number: CN202310981200.9A
Authority: CN
Inventors: 杨猷帅; 施俊杰; 姚红平; 杨涛; 姚涛; 高达; 李书航; 张卓
Original assignee: United Deville Hangzhou Machinery Co ltd
Current assignee: United Deville Hangzhou Machinery Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2023-11-03

Abstract

The application relates to the technical field of detection tool measurement, in particular to a detection tool for detecting a half-shaft sealing groove and a detection method thereof. The application has the effect of conveniently detecting the size of the semi-axle sealing groove.

Description

Gauge for detecting semi-axis sealing groove and detection method thereof

Technical Field

The application relates to the technical field of detection tool measurement, in particular to a detection tool for detecting a half-shaft sealing groove and a detection method thereof.

Background

The half axle is an important part for connecting the wheels and the vehicle transmission device, and has the functions of bearing the weight of the vehicle, relieving the vibration of the road surface, keeping the wheels to rotate stably and the like. In order to ensure the quality and performance of the semi-axis sealing groove, the semi-axis sealing groove is required to be subjected to size detection by using a dial indicator, and the detection result is qualified and can be put into use.

The half shaft seal groove is an inward groove of the half shaft, and has a main function of preventing leakage of lubricating oil or other fluid and protecting a vehicle transmission system from external contaminants, as shown in fig. 1, the seal groove 51 is stepped and formed with a surface to be measured 52, but when the seal groove 51 is detected, the groove width of the seal groove 51 is narrow, and a measuring rod of a dial indicator cannot penetrate into the seal groove 51, so that the surface to be measured 52 in the seal groove 51 cannot be detected.

Disclosure of Invention

In order to facilitate the detection of the size of the half shaft seal groove, the application provides a detection tool for detecting the half shaft seal groove and a detection method thereof.

On one hand, the detection tool for detecting the half shaft sealing groove provided by the application adopts the following technical scheme:

a examine utensil for detecting semi-axis seal groove, it includes the percentage table and is used for fixing the mount of percentage table still includes and surveys frame and connecting block, the mount with survey frame fixed connection, the connecting block with survey frame sliding connection, the one end of connecting block with the tip of percentage table offsets, when half-axis seal groove measures, the other end of connecting block stretches into in the seal groove and offsets with the face of being surveyed.

Through adopting above-mentioned technical scheme, when needs are to be to half seal groove detection, stretch into the seal groove with the connecting block in, then the other end offsets with the percentage table, rotates the semi-axis, and the connecting block slides on measuring the frame to feed back to the percentage table, so that the numerical value of percentage table constantly changes, shows the corresponding dimensional change of seal groove. The mount provides support and installation basis for survey frame and percentage table, surveys the frame and can guarantee that the connecting block is along invariable smooth and easy slip, and the connecting frame plays the transmission effect, makes the dimensional change in the seal groove feed back to the percentage table through the connecting frame, makes things convenient for the percentage table to measure the dimensional change of seal groove.

Optionally, survey the frame and include guide rail support and gland, the gland with guide rail support passes through fastener fixed connection, guide rail support with be formed with between the gland and be used for supplying the gliding smooth chamber of connecting block, the spout has been seted up to the connecting block, install the elastic component in the spout, the elastic component is used for resetting the connecting block so that the connecting block keeps the state with being surveyed the face offset.

By adopting the technical scheme, the sliding cavity formed between the guide rail bracket and the gland can ensure the sliding stability of the connecting block, so that the connecting block is not separated from the measuring frame. The connecting block can be reset in time through the sliding groove and the elastic piece in the sliding groove, so that the connecting block can slide back and forth during measurement, the connecting block can be always in a state of being propped against a measured surface, and the accuracy of dial indicator measurement is improved.

Optionally, a pin groove is formed between the guide rail bracket and the connecting block, the guide rail bracket is provided with a stop pin, the stop pin is positioned in the pin groove, and the connecting block can slide along the length direction of the stop pin.

Through adopting above-mentioned technical scheme, in order to increase percentage table measuring accuracy, the connecting block needs the resistance of reduction sliding friction as far as, guarantees the smooth and easy slip of connecting block. The connection between the connecting block and the guide rail bracket is realized through the stop pin, when the connecting block slides, the contact between the connecting block and the stop pin is in line contact, the contact surface is smaller, and the friction force is small, so that the sliding smoothness between the connecting block and the guide rail bracket is improved, and the connecting block is more stable in sliding.

Optionally, one end that the connecting block is located the seal groove is provided with the gauge head, the tip of gauge head is provided with the ball that offsets with the face of being surveyed, the gauge head passes through the fastener with the connecting block and can dismantle the connection.

Through adopting above-mentioned technical scheme, when actual measurement, need measure the numerical value of standard component with 0 calibration dial indicator in order to transfer earlier, and put into the in-process of seal groove with the connecting block, the connecting block produces the mistake because of manual operation easily and touches, leads to measuring result to appear the deviation. The measuring head can be detached from the connecting block, and the measuring head is installed after the connecting block determines the position, so that the error of the connecting block is reduced. The ball can reduce the frictional force of gauge head, makes the semi-axis in the rotation in-process, and the ball is more smooth and easy with the contact of semi-axis, when guaranteeing percentage table measurement accuracy, the rolling frictional force of ball is also less.

Optionally, be provided with first fixed block on the mount detachably, first fixed block and connecting block are located respectively the both ends of mount, when half seal groove measurement, first fixed block offsets with the face of being surveyed, first fixed block forms the spacing to the semi-axis with the connecting block.

Through adopting above-mentioned technical scheme, when half axle seal groove measures, need rotate the semi-axis, and the semi-axis is at the rotation in-process, causes the influence to the connecting block very easily, and first fixed block can form the spacing effect to the semi-axis with the connecting block, when can guaranteeing that the connecting block contradicts the semi-axis, guarantees the stability of connecting block, increases the measurement accuracy of percentage table.

Optionally, the connecting block is provided with the regulating part, the one end and the connecting block threaded connection of regulating part and terminal surface offset with the gland.

Through adopting above-mentioned technical scheme, when actual measurement, the connecting block can keep under the effect of elastic component to measuring the butt state of frame, and the regulating part can control the connecting block and survey the interval between the frame, when calibrating the percentage table, need confirm the connecting block and survey the interval of frame, and rotate the regulating part, can guarantee that the connecting block is in suitable position to increase the application scope of connecting block.

Optionally, the calibration assembly is located still including being located the mount below, the calibration assembly includes mount table, calibration piece and locating rack, the calibration piece place in the mount table, the locating rack can dismantle connect in the mount table, the locating rack is used for fixing the calibration piece, the calibration piece is used for to the connecting block calibration, works as when the connecting block needs the calibration, the connecting block with the calibration piece offsets.

Through adopting above-mentioned technical scheme, calibration assembly can carry out the calibration in advance to the percentage table, then stretches into the seal groove with the connecting block of calibration and detects. The mount may provide a mounting base for the calibration block and the locating rack, and the calibration block may provide a calibration position for the connection block and a calibration 0 value for the dial indicator. The locating rack can fix the calibration block on the mount table, guarantees the stability of calibration block.

Optionally, the fixed frame has seted up waist type groove, survey frame and first fixed block all are connected with the mount through the fastener, waist type groove and fastener grafting cooperation and can follow waist type groove length direction and slide.

Through adopting above-mentioned technical scheme, survey frame and first fixed block need slide on the mount in order to adjust suitable position, and waist type groove not only can provide the connection basis, can make survey frame and first fixed block slide along waist type groove length direction moreover to change the interval of survey between frame and the first fixed block.

On the other hand, the detection method for detecting the half shaft sealing groove provided by the application adopts the following technical scheme: the method comprises the following steps:

s1, sequentially assembling a dial indicator, a measuring frame and a connecting block, fixing the dial indicator, the measuring frame and the connecting block on a fixing frame, and installing a first fixing block on the fixing frame;

s2, placing the assembled fixing frame on an installation table, rotating an adjusting piece to enable a connecting block and a measuring frame to slide relatively so as to adjust to a proper position, checking a percentage representation number, adjusting the adjusting piece to an allowable minimum error representation number of a sealing groove, enabling a measuring head and a first fixed block to be propped against a calibration block, aligning a pointer on the percentage table with a 0 scale, and then taking the fixing frame off the installation table;

s3, placing the fixing frame on the half shaft, enabling the measuring head to prop against the measured surface, fixing the position of the fixing frame, rotating the half shaft, and recording the numerical value on the dial indicator;

s4, after the detection is finished, the fixing frame is taken down from the half shaft.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the dial indicator, the measuring frame and the connecting block form a main measuring structure, the dial indicator provides vertical display, the connecting block can transmit the dimensional change in the sealing groove to the dial indicator, the measuring frame can provide a sliding rail for the connecting block, and the sliding stability of the connecting block is ensured;

2. the blocking pin in the pin groove can enable the contact area between the connecting block and the measuring frame to be smaller, so that the friction force between the connecting block and the measuring frame is reduced, and the smoothness of sliding of the connecting block is improved;

3. the first fixed block and the connecting block interact can form spacing to half to make the connecting block more stable when measuring, thereby increase the precision of percentage table.

Drawings

FIG. 1 is a schematic cross-sectional view of a half shaft component in accordance with the background of the application;

FIG. 2 is a schematic overall structure of an embodiment of the present application;

FIG. 3 is a schematic diagram of the structure of a dial indicator according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a measurement assembly according to an embodiment of the present application;

FIG. 5 is a schematic view in section A-A of FIG. 4 in accordance with the present application;

FIG. 6 is an exploded view of a measurement assembly of an embodiment of the present application;

FIG. 7 is a schematic illustration of the structure of a fixture assembly and a calibration assembly according to an embodiment of the present application.

Reference numerals illustrate: 1. a dial indicator; 11. a dial; 12. a sleeve; 13. a measuring rod; 2. a measurement assembly; 21. a measuring frame; 211. a guide rail bracket; 212. a gland; 2121. a positioning cylinder; 213. a sliding cavity; 22. a connecting block; 221. a chute; 222. an elastic member; 223. an adjusting member; 224. measuring head; 225. a ball; 23. a pin slot; 24. a stop pin; 3. a fixing assembly; 31. a fixing frame; 311. a waist-shaped groove; 32. a first fixed block; 33. a second fixed block; 34. a watch stand; 4. a calibration assembly; 41. a mounting table; 42. a calibration block; 43. a positioning frame; 5. a half shaft; 51. sealing grooves; 52. the surface to be measured.

Detailed Description

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

The present application will be described in further detail with reference to fig. 2 to 7.

The embodiment of the application discloses a gauge for detecting a half-shaft sealing groove, and referring to fig. 2, the gauge comprises a dial indicator 1, a measuring assembly 2, a fixing assembly 3 and a calibration assembly 4. The dial indicator 1 is used for displaying measurement values, the dial indicator 1 is connected with the half shaft 5 through the measurement assembly 2, the fixing assembly 3 is used for fixing the position of the dial indicator 1, the calibration assembly 4 is used for calibrating the values of the dial indicator 1, and measurement accuracy is guaranteed.

Referring to fig. 3, the dial indicator 1 includes a dial 11, a sleeve 12 and a measuring rod 13, the sleeve 12 is fixedly connected with the dial 11, the measuring rod 13 is slidably connected with the sleeve 12, and the telescopic amount of the measuring rod 13 in the sleeve 12 can reflect the measured value.

Referring to fig. 4, the measuring assembly 2 includes a measuring frame 21 and a connection block 22, the measuring frame 21 and the connection block 22 are slidably connected, the measuring frame 21 includes a rail bracket 211 and a pressing cover 212, a sliding cavity 213 for accommodating the connection block 22 is formed between the rail bracket 211 and the pressing cover 212, and the connection block 22 is slidably connected with the measuring frame 21 in the sliding cavity 213. The gland 212 is detachably connected with the rail bracket 211 by a fastener, and the gland 212 is formed with a positioning cylinder 2121 for connecting the fastener.

Referring to fig. 4, 5 and 6, the connection block 22 is stepped, one end of the connection block 22 is located in the slide cavity 213 and abuts against the measuring rod 13, and the other end of the connection block 22 extends into the seal groove 51 and abuts against the surface 52 to be measured. The connecting block 22 is provided with a cross-shaped chute 221, and a positioning barrel 2121 is positioned in the chute 221. The connecting block 22 is further provided with an elastic member 222, one end of the elastic member 222 abuts against a groove wall of the sliding groove 221, which is close to the measuring rod 13, the other end of the elastic member 222 abuts against the positioning cylinder 2121, the elastic member 222 may be a compression spring, and the elastic member 222 is used for resetting the connecting block 22 so that the connecting block 22 keeps abutting against the measured surface 52. A pin groove 23 is formed between the guide rail bracket 211 and the connecting block 22, two pin grooves 23 are respectively arranged on two sides of the connecting block 22, the guide rail bracket 211 is provided with two blocking pins 24 and respectively arranged in the pin groove 23, and one end of each blocking pin 24, which is close to the dial indicator 1, is connected to the guide rail bracket 211 through a fastener. A gap is formed between the connection block 22 and the measurement frame 21, and the connection block 22 and the measurement frame 21 are connected by the stopper pin 24, thereby reducing friction force, increasing the sensitivity of sliding of the connection block 22, so that the connection block 22 can reciprocally slide along the length direction of the stopper pin 24.

Referring to fig. 5 and 6, the connection block 22 is further provided with an adjusting member 223, the adjusting member 223 is in threaded connection with the connection block 22, one end of the adjusting member 223 abuts against the gland 212, that is, the rotation of the adjusting member 223 can drive the connection block 22 to move so as to adjust the position of the connection block 22, and the application range of the connection block 22 is increased. The connecting block 22 is provided with a measuring head 224 at one end of the sealing groove 51, the measuring head 224 is in plug-in fit with the connecting block 22, and a fixing piece is arranged on the side wall of the connecting block 22 to fix the measuring head 224. The end of the probe 224 is provided with a ball 225, and the ball 225 is detachably connected with the probe 224 by threads.

Referring to fig. 7, the fixing assembly 3 includes a fixing frame 31, a first fixing block 32 and a second fixing block 33, the fixing frame 31 is in a semi-circular shape, the fixing frame 31 is connected with the measuring frame 21, the first fixing block 32 and the second fixing block 33 through fasteners, the fixing frame 31 is provided with a waist-shaped groove 311, and the fasteners can slide in the waist-shaped groove 311 along the length direction of the waist-shaped groove 311, so that the positions of the measuring frame 21, the first fixing block 32 and the second fixing block 33 on the fixing frame 31 are adjusted. The fixed assembly 3 further comprises a meter frame 34, the meter frame 34 is fixedly connected with the measuring frame 21, the meter frame 34 is connected with the sleeve 12 of the dial indicator 1 through a fastener, the dial indicator 1 is conveniently dismounted from the meter frame 34, and the first fixed block 32 and the connecting block 22 are respectively located at two ends of the fixed frame 31. The first fixing block 32 and the connecting block 22 are similar in shape and are in a step shape, and the end part of the first fixing block 32 is also provided with a measuring head 224 and abuts against the measured surface 52. The second fixed block 33 is located the middle part of mount 31, and first fixed block 32 and second fixed block 33 all are used for stabilizing connecting block 22, increase the measurement accuracy of percentage table 1.

Referring to fig. 7, the calibration assembly 4 is located below the fixing assembly 3, the calibration assembly 4 includes an installation table 41, calibration blocks 42 and positioning frames 43, the calibration blocks 42 are provided with three and correspond to the connecting blocks 22, the first fixing blocks 32 and the second fixing blocks 33 respectively, the calibration blocks 42 are prevented from being arranged on the installation table 41, each calibration block 42 corresponds to two positioning frames 43, the two positioning frames 43 fix the calibration blocks 42 on the installation table 41, the positioning frames 43 are detachably connected with the installation table 41 through fasteners, and the distance between the calibration blocks 42 is the standard diameter of the sealing groove 51 of the half shaft 5 to be measured.

The implementation principle of the embodiment of the application is as follows:

the installation step comprises the following steps:

the sleeve 12 of the dial indicator 1 is connected with the meter frame 34 through a fastener, the connecting block 22 is placed in the sliding cavity 213, the elastic piece 222 is placed in the sliding groove 221, then the gland 212 is connected with the guide rail bracket 211 through a fastener, the stop pin 24 is inserted into the pin groove 23, the stop pin 24 is fixed with the guide rail bracket 211, the adjusting piece 223 is connected with the connecting block 22, the measuring head 224 is connected with the connecting block 22 through a fastener, the guide rail bracket 211 is connected with one end of the fixed frame 31 through a fastener, the first fixed block 32 is fixed at the other end of the fixed frame 31, and the second fixed block 33 is fixed at the middle part of the fixed frame 31.

Three calibration blocks 42 are placed on the mounting table 41 in sequence corresponding to the connecting frame, the first fixing block 32 and the second fixing block 33, and are fixed by the positioning frame 43, and then the positioning frame 43 and the mounting table 41 are fixed by fasteners.

The embodiment of the application discloses a detection method for detecting a half-shaft sealing groove, which comprises the following steps of:

s1, sequentially assembling a dial indicator 1, a measuring frame 21 and a connecting block 22, fixing the assembled dial indicator 1, the measuring frame 21 and the connecting block 22 on a fixing frame 31, and installing a first fixing block 32 on the fixing frame 31;

s2, placing the assembled fixed frame 31 on the mounting table 41, rotating the adjusting piece 223 to enable the connecting block 22 and the measuring frame 21 to slide relatively so as to adjust to a proper position, enabling the measuring head 224 and the first fixed block 32 to abut against the calibration block 42, adjusting the adjusting piece 223 to the minimum error indication allowed by the sealing groove 51, then enabling the pointer on the dial indicator 1 to be aligned with the 0 scale, and then removing the fixed frame 31 from the mounting table 41;

s3, then placing the fixing frame 31 on the half shaft 5, enabling the measuring head 224 to prop against the measured surface 52, fixing the position of the fixing frame 31, rotating the half shaft 5, and recording the numerical value on the dial indicator 1;

and S4, after the detection is finished, the fixing frame 31 is taken off from the half shaft 5.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A examine utensil for detecting semi-axis seal groove, includes percentage table (1) and is used for fixing mount (31) of percentage table (1), its characterized in that: the device is characterized by further comprising a measuring frame (21) and a connecting block (22), wherein the fixing frame (31) is fixedly connected with the measuring frame (21), the connecting block (22) is in sliding connection with the measuring frame (21), one end of the connecting block (22) is propped against the end part of a measuring rod (13) of the dial indicator (1), and when the sealing groove (51) of the half meter (5) is measured, the other end of the connecting block (22) stretches into the sealing groove (51) and is propped against a measured surface (52).

2. The gauge for detecting a half shaft seal groove of claim 1, wherein: the measuring rack (21) comprises a guide rail bracket (211) and a pressing cover (212), the pressing cover (212) is fixedly connected with the guide rail bracket (211) through a fastener, a sliding cavity (213) for the sliding of the connecting block (22) is formed between the guide rail bracket (211) and the pressing cover (212), a sliding groove (221) is formed in the connecting block (22), an elastic piece (222) is arranged in the sliding groove (221), and the elastic piece (222) is used for resetting the connecting block (22) to enable the connecting block (22) to keep a state propped against a measured surface (52).

3. The gauge for detecting a half shaft seal groove according to claim 2, wherein: a pin groove (23) is formed between the guide rail bracket (211) and the connecting block (22), the guide rail bracket (211) is provided with a stop pin (24), the stop pin (24) is positioned in the pin groove (23), and the connecting block (22) can slide along the length direction of the stop pin (24).

4. The gauge for detecting a half shaft seal groove of claim 1, wherein: one end of the connecting block (22) located in the sealing groove (51) is provided with a measuring head (224), the end part of the measuring head (224) is provided with a ball (225) propped against the measured surface (52), and the measuring head (224) is detachably connected with the connecting block (22) through a fastener.

5. The gauge for detecting a half shaft seal groove of claim 1, wherein: the utility model discloses a motor vehicle is characterized by including fixing frame (31), fixed frame (31) is last to be dismantled and to be provided with first fixed block (32), first fixed block (32) are located respectively with connecting block (22) the both ends of fixed frame (31), when half (5) seal groove (51) are measured, first fixed block (32) offset with being surveyed face (52), first fixed block (32) form the spacing of half axle (5) with connecting block (22).

6. The gauge for detecting a half shaft seal groove of claim 1, wherein: the connecting block (22) is provided with an adjusting piece (223), one end of the adjusting piece (223) is in threaded connection with the connecting block (22), and the end face of the adjusting piece abuts against the gland (212).

7. The gauge for detecting a half shaft seal groove of claim 5, wherein: still including being located calibration subassembly (4) of mount (31) below, calibration subassembly (4) include mount table (41), calibration piece (42) and locating rack (43), calibration piece (42) place in mount table (41), locating rack (43) can dismantle connect in mount table (41), locating rack (43) are used for fixing calibration piece (42), calibration piece (42) are used for to connecting block (22) are calibrated, works as when connecting block (22) need be calibrated, connecting block (22) with calibration piece (42) offset.

8. The gauge for detecting a half shaft seal groove of claim 7, wherein: the fixing frame (31) is provided with a waist-shaped groove (311), the measuring frame (21) and the first fixing block (32) are connected with the fixing frame (31) through fasteners, and the waist-shaped groove (311) is in plug-in fit with the fasteners and can slide along the length direction of the waist-shaped groove (311).

9. A detection method for detecting a half shaft seal groove, using the gauge according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:

s1, sequentially assembling a dial indicator (1), a measuring rack (21) and a connecting block (22), fixing the assembled dial indicator on a fixing rack (31), and installing a first fixing block (32) on the fixing rack (31);

s2, placing the assembled fixed frame (31) on a mounting table (41), rotating an adjusting piece (223), enabling a connecting block (22) and a measuring frame (21) to slide relatively to be adjusted to a proper position, enabling a measuring head (224) and a first fixed block (32) to be propped against a calibration block (42), enabling an upper pointer of a dial indicator (1) to be aligned with a 0 scale, and then removing the fixed frame (31) from the mounting table (41);

s3, then placing the fixing frame (31) on the half shaft (5), enabling the measuring head (224) to prop against the measured surface (52), fixing the position of the fixing frame (31), rotating the half shaft (5), and recording the numerical value on the dial indicator (1);

s4, after the detection is finished, the fixing frame (31) is taken down from the half shaft (5).