CN114812330A

CN114812330A - Detection tool and detection method for detecting profile tolerance of sealing groove

Info

Publication number: CN114812330A
Application number: CN202210395374.2A
Authority: CN
Inventors: 赵卫东; 郭世杰; 杨兴超; 田其开; 张晓冲; 韩磊; 耍浩楠; 吕瑞坤; 段亚辉; 陈顺利; 史梦杰
Original assignee: Zhengzhou Feilong Automobile Components Co ltd
Current assignee: Feilong Automotive Parts Co ltd; Zhengzhou Feilong Automobile Components Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-07-29
Anticipated expiration: 2042-04-15
Also published as: CN114812330B

Abstract

The invention discloses a checking tool for detecting the contour of a sealing groove, which relates to the field of testing equipment, comprising a frame, a positioning support member floatingly connected to the frame for positioning a to-be-measured piece, and a track arranged above the positioning support member plate, a drive device arranged on the frame to drive the rail plate to lift and lower, a rail groove opened on the rail plate to match the shape of the sealing groove of the test piece, and a sliding limit located in the rail groove for detecting the sealing groove of the test piece. measuring piece. Also disclosed is a method for detecting the contour of a sealing groove, which includes placing a test piece on a positioning support column; a driving device drives a track plate to descend, and after descending to the height of the buffer device, decelerates and descends until it contacts the reference surface of the test piece and stops. Down; the measuring piece slides along the track and collects the value of the indicator mark of the measuring piece; the driving device drives the track plate to rise, and removes the piece to be inspected. The invention greatly reduces the cost and improves the detection accuracy.

Description

Detection tool and detection method for detecting profile tolerance of sealing groove

Technical Field

The invention relates to the field of detection devices, in particular to a detection tool and a detection method for detecting the profile tolerance of a sealing groove.

Background

As the one that waits that figure 1 shows, wherein an area is the reference surface, and the area b is the seal groove, and the later stage needs the installation sealing washer in the seal groove, and in order to guarantee sealed effect, has certain requirement to the relative reference surface of profile tolerance of seal groove, need do one set and examine a utensil and examine it. Traditional check out test set generally comprises following several parts and examines a base, wait to examine a locating pin, wait to examine a support column, track board locating pin, track board, percentage table and elbow clamp and constitute. The specific operation method comprises the following steps: firstly, placing a to-be-detected piece into a positioning pin of the to-be-detected piece to position the to-be-detected piece, and leveling the to-be-detected piece by a plurality of support columns of the to-be-detected piece; secondly, placing the track slab into a track slab positioning pin to position the track slab, and then attaching the track slab to a reference surface of the to-be-detected piece; thirdly, closing the four elbow clamps, and tightening the track plate to ensure that the track plate is effectively attached to the reference surface of the to-be-detected part; fourthly, placing the dial indicator into a track on the track plate, enabling a needle head of the dial indicator to be in contact with the bottom of the sealing groove, sliding along the track, and judging whether the profile is qualified or not by observing the jumping of the needle head; fifthly, loosening the elbow clamp, taking off the track plate and taking down the to-be-detected piece.

Although the above-mentioned conventional checking fixture has a simple structure, there are many disadvantages, and the conventional checking fixture specifically includes: firstly, the processing requirement on the height dimension of the support column of the to-be-detected piece is higher, and if the height difference of the three support columns does not meet the requirement, the to-be-detected piece is easy to incline; secondly, the supporting column of the to-be-detected piece supports a blank piece, the consistency of the blank piece is difficult to guarantee, the to-be-detected piece is prone to being placed unevenly, and the detection is inaccurate; finally, the track plate is relatively heavy, and the track plate needs to be aligned with the track plate positioning pin to be placed in, so that the operation is not easy and the labor intensity is high.

Disclosure of Invention

The invention aims to provide a detection tool for detecting the profile tolerance of a sealing groove, which has high reliability and high detection precision. In addition, a method for detecting the profile tolerance of the sealing groove is further provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: the detection tool for detecting the profile tolerance of the sealing groove comprises a rack, a plurality of positioning support pieces, a track plate, a driving device, a track groove and a measuring piece, wherein the positioning support pieces are connected to the rack in a floating mode and used for positioning a to-be-detected piece, the track plate is arranged above the positioning support pieces, the driving device is arranged on the rack and used for driving the track plate to ascend and descend, the track groove is formed in the track plate and matched with the shape of the to-be-detected piece sealing groove, and the measuring piece is limited in the track groove in a sliding mode and used for detecting the to-be-detected piece sealing groove.

Further, the frame includes bottom plate, backup pad and connects the stand between backup pad and bottom plate, location support piece floats to be connected in the backup pad.

Furthermore, each positioning support piece comprises a positioning pin and a spring sleeved on the positioning pin.

Furthermore, the positioning pin comprises a pin shaft main body, a first pin head arranged at the upper end of the pin shaft main body and a second pin head arranged at the lower end of the pin shaft, the diameter of the first pin head is larger than that of the pin shaft main body, the spring is sleeved on the pin shaft, and the end parts of the spring are respectively pressed on the first pin head and the supporting plate; the first pin head of more than two positioning support pieces is provided with a limiting bulge for positioning the piece to be measured.

Further, the track plate falling device further comprises a buffer piece arranged on the supporting plate and used for buffering the falling speed of the track plate.

Furthermore, the number of the buffer parts is two, and the buffer parts are arranged on the supporting plate in a diagonal manner; the buffer piece comprises a base and a telescopic head which is arranged on the base and can stretch relative to the base.

Furthermore, the supporting plate is also provided with a notch, the notch extends to the position below the station to be tested, which is surrounded by the positioning supporting piece, and the width of the inner side of the notch is smaller than the width of the opening at the edge.

Further, the driving device comprises an air cylinder, the air cylinder is fixedly connected to the supporting plate, and the piston rod is connected with the track plate.

Furthermore, the driving device also comprises a hand-operated valve arranged on the bottom plate and used for controlling the action direction of the cylinder, and a speed regulating valve used for controlling the action speed of the cylinder.

Based on the same idea, the detection method for the profile tolerance of the sealing groove is also provided, and the detection tool for detecting the profile tolerance of the sealing groove comprises the following steps,

s1, placing the piece to be tested on the positioning support column;

s2, driving the track slab to descend by the driving device, and decelerating and descending until the track slab descends to the height of the buffer device until the track slab contacts the reference surface of the piece to be detected and then stopping descending;

s3, sliding the measuring piece along the track and collecting the value of the indicating mark of the measuring piece;

and S4, driving the track slab to ascend by the driving device, and taking down the to-be-detected piece to finish detection.

The detection tool for detecting the profile tolerance of the sealing groove comprises a positioning support piece which is connected to a machine frame in a floating mode, and the detection tool can be prevented from inclining after being positioned on the positioning support piece. The reason is that, by adopting the floating connection, even if the height difference of the positioning support column does not meet the requirement, the influence can be eliminated through the tolerance of the positioning support piece of the floating connection, and the reliability is greatly improved. Meanwhile, the height dimension of each positioning support column does not need to be excessively strictly required, so the processing cost can be greatly reduced.

In addition, because the piece of examining is the blank, therefore should examine the uniformity of examining the piece and hardly obtain guaranteeing, utilize floating connection structure can set level the piece of examining to the at utmost, improved the detection accuracy greatly.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a structure of a part to be inspected;

FIG. 2 is a schematic structural diagram of a detection tool for detecting the profile tolerance of a sealing groove in the embodiment of the invention;

FIG. 3 is a side view of a gauge for detecting the profile tolerance of a sealing groove according to an embodiment of the invention;

FIG. 4 is a side view of another view angle of a gauge for detecting the profile tolerance of the sealing groove according to the embodiment of the invention;

FIG. 5 is a top view of a gauge for detecting the profile tolerance of a sealing groove according to an embodiment of the invention;

FIG. 6 is a schematic structural diagram of another view angle of a detection tool for detecting the profile tolerance of the sealing groove according to the embodiment of the invention;

FIG. 7 is a schematic structural diagram of the track plate removed according to the embodiment of the present invention;

FIG. 8 is a schematic structural diagram of the track slab and the to-be-inspected object after being removed according to the embodiment of the invention;

fig. 9 is an enlarged view of a portion a of fig. 8.

Description of reference numerals:

1. a frame; 11. a base plate; 12. a support plate; 121. a notch; 13. a column; 14. a guide post; 2. positioning a support; 21. a pin shaft main body; 22. a first pin head; 23. a second pin head; 24. a limiting bulge; 25. a spring; 3. a track plate; 31. a track groove; 4. a drive device; 41. a cylinder; 42. a hand-operated valve; 43. a speed regulating valve; 44. a piston rod; 5. a measuring member; 6. a buffer member; 100. and (5) a to-be-detected piece.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 2-9, the detection tool for detecting the profile tolerance of the sealing groove comprises a frame 1, positioning support members 2, a track plate 3, a driving device 4 and a measuring member 5, wherein the frame 1 comprises a bottom plate 11, a supporting plate 12 and a column 13 connected between the supporting plate 12 and the bottom plate 11, the number of the positioning support members 2 is 4, the positioning support members 2 are connected to the supporting plate 12 in a floating manner, and the positioning support members 2 are used for fixing and positioning the to-be-detected member. Of course, in other embodiments, the number of positioning supports 2 can also be designed according to the shape of the particular piece to be inspected 100.

Track board 3 is located the location support piece 2 top, offers on the track board 3 with wait to examine track groove 31 of a sealing groove shape adaptation, drive arrangement 4 includes cylinder 41, cylinder 41 fixed connection on backup pad 12 and piston rod 44 connection track board 3. The driving device 4 further comprises a hand-operated valve 42 arranged on the bottom plate 11 and used for controlling the action direction of the cylinder 41, and a speed regulating valve 43 used for controlling the speed of the action of the cylinder 41, the supporting plate 12 and the track plate 3 are connected with guide posts 14 used for guiding when the track plate 3 is driven to ascend and descend, and the measuring part 5 is limited in the track groove 31 in a sliding mode and used for detecting a sealing groove of the part to be detected. In this embodiment, the measuring member 5 is a dial indicator.

The detection tool for detecting the profile tolerance of the sealing groove comprises a positioning support part 2 which is connected to a machine frame 1 in a floating mode, and when the detection tool is used for detecting, after a part 100 to be detected is positioned on the positioning support part 2, the part 100 to be detected can be prevented from inclining. The reason is that with a floating connection, even if the height difference of the positioning support columns is not as desired, this effect can be absorbed by the tolerances of the positioning supports 2 of the floating connection. Meanwhile, the height dimension of each positioning support column does not need to be excessively strictly required, so the processing cost can be greatly reduced.

In addition, because the piece 100 of examining is the blank, therefore should examine the uniformity of piece 100 and hardly obtain guaranteeing, utilize floating connection structure can be with examining the piece 100 and put down to the utmost, improved the detection accuracy greatly.

In this embodiment, the positioning support member 2 includes a positioning pin and a spring 25 sleeved on the positioning pin, and of course, in other embodiments, the positioning support member 2 may also be a matching of the positioning pin and the metal elastic sheet; or the positioning pin is matched with the pressure spring, for example, the pressure spring is arranged at the bottom of the positioning pin.

The positioning pin comprises a pin shaft main body 21, a first pin head 22 arranged at the upper end of the pin shaft main body 21 and a second pin head 23 arranged at the lower end of the pin shaft, wherein the diameter of the first pin head 22 is larger than that of the pin shaft main body 21, a spring 25 is sleeved on the pin shaft, and end parts of the spring are respectively pressed on the first pin head 22 and a supporting plate 12; two first pin heads 22 are provided with limiting protrusions 24 for positioning the part to be inspected. The position of the to-be-detected part can be effectively limited by at least two limiting protrusions 24, and the to-be-detected part 100 is prevented from rotating in the detection process.

In order to exert the maximum effect by cooperating with the speed control valve 43, the supporting plate 12 is further connected with a buffer 6 for buffering the falling speed of the track plate 3. The two buffer members 6 are arranged diagonally on the support plate 12; the buffer member 6 comprises a base and a telescopic head which is arranged on the base and can be telescopic relative to the base. In this embodiment, the buffer 6 is a hydraulic buffer, and the impact of the track plate 3 on the reference surface of the to-be-detected element 100 can be effectively reduced under the action of the speed control valve 43 and the hydraulic buffer, so as to protect the reference surface from being damaged.

In order to facilitate taking and placing of the workpiece 100 to be tested, a notch 121 is further formed in the supporting plate 12, the notch 121 extends to the position below the station to be tested, which is surrounded by the positioning and supporting members 2, and the width of the inner side of the notch 121 is smaller than the width of the opening at the edge.

The method for detecting the profile tolerance of the sealing groove by using the detection tool for detecting the profile tolerance of the sealing groove comprises the following steps,

s1, placing the to-be-detected piece on the positioning support column;

s2, the driving device 4 drives the track slab 3 to descend, and the track slab decelerates and descends after descending to the height of the buffer device until contacting the reference surface of the to-be-detected piece and stops descending; the manual rotary valve 42 is rotated, the air cylinder 41 pulls the track plate 3 down along the guide column 14, and the track plate 3 slowly descends and stops before contacting the reference surface of the to-be-detected element 100 under the action of the hydraulic buffer;

s3, sliding the measuring piece 5 along the track and collecting the numerical value of the indication mark of the measuring piece 5; the method comprises the steps of placing a dial indicator into a track on a track plate 3, enabling a needle head of the dial indicator to be in contact with the bottom of a sealing groove, sliding along the track, and judging whether the profile degree is qualified or not by observing the jumping of the needle head;

and S4, driving the track slab 3 to ascend by the driving device 4, and taking down the to-be-detected piece to finish detection.

According to the detection method for the profile tolerance of the sealing groove, the positioning support piece 2 which is connected to the rack 1 in a floating mode is utilized, and after the to-be-detected piece 100 is positioned on the positioning support piece 2 during detection, the to-be-detected piece 100 can be prevented from inclining. The reason is that, with the floating connection, even if the height difference of the positioning support column does not meet the requirement, the influence can be eliminated by the tolerance of the positioning support member 2 of the floating connection, and the reliability is greatly improved. Meanwhile, the height dimension of each positioning support column does not need to be excessively strictly required, so the processing cost can be greatly reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An inspection tool for detecting the contour of a sealing groove, characterized in that it comprises a frame (1), a plurality of positioning supports (2) for locating the object to be inspected, which are floatingly connected on the frame (1), A rail plate (3) arranged above the positioning support (2), a drive device (4) arranged on the frame (1) for driving the rail plate (3) to rise and fall, and a drive device (4) arranged on the rail plate (3) and to be A track groove (31) adapted to the shape of the sealing groove of the test piece and a measuring piece (5) whose sliding limit is located in the track groove (31) for detecting the sealing groove of the test piece.

2 . The inspection tool for detecting the contour of the sealing groove according to claim 1 , wherein the frame ( 1 ) comprises a bottom plate ( 11 ), a support plate ( 12 ), and is connected to the support plate ( 12 ) and the bottom plate. 3 . (11) between the uprights (13), the positioning support (2) is floatingly connected to the support plate (12).

3. The inspection tool for detecting the contour of the sealing groove according to claim 2, wherein each of the positioning supports (2) respectively comprises a positioning pin and a spring (25) sleeved on the positioning pin.

4. The inspection tool for detecting the contour of the sealing groove according to claim 3, wherein the positioning pin comprises a pin shaft main body (21) and a first pin head (22) arranged on the upper end of the pin shaft main body (21). ) and a second pin head (23) arranged at the lower end of the pin shaft, the diameter of the first pin head (22) is larger than the diameter of the pin shaft body (21), the spring (25) is sleeved on the pin shaft and ends The first pin heads (22) of the two or more positioning supports (2) are respectively provided with limiting protrusions for positioning the parts to be inspected. from (24).

5 . The inspection tool for detecting the contour of the sealing groove according to claim 2 , further comprising a buffer member ( 6 ) disposed on the support plate ( 12 ) for buffering the falling speed of the track plate ( 3 ). 6 .

6 . The inspection tool for detecting the contour of the sealing groove according to claim 5 , wherein the buffering members ( 6 ) are two and are arranged diagonally on the support plate (12); the buffering members ( 6) It includes a base and a telescopic head which is arranged on the base and can be extended and retracted relative to the base.

7. The inspection tool for detecting the contour of a sealing groove according to claim 2, wherein a gap (121) is further provided on the support plate (12), and the gap (121) extends to the positioning support (2). ), the width of the inner side of the notch (121) is smaller than the width of the opening of the edge.

8 . The inspection tool for detecting the contour of the sealing groove according to claim 1 , wherein the driving device ( 4 ) comprises a cylinder ( 41 ), and the cylinder ( 41 ) is fixedly connected to the support plate ( 12 ). 9 . And the piston rod (44) is connected to the track plate (3).

9 . The inspection tool for detecting the contour of the sealing groove according to claim 8 , wherein the driving device ( 4 ) further comprises a hand disposed on the bottom plate ( 11 ) and used to control the action direction of the air cylinder ( 41 ). 10 . A rotary valve (42), and a speed regulating valve (43) for controlling the speed of the cylinder (41).

10. A method for detecting the contour of a sealing groove, characterized in that, using the inspection tool according to any one of claims 1-9, comprising the steps of:

S1. Place the object to be inspected on the positioning support column;

S2. The driving device (4) drives the track plate (3) to descend, and after descending to the height of the buffer device, decelerates and descends until it contacts the reference surface of the object to be inspected and stops descending;

S3, the measuring piece (5) slides along the track and collects the indicator value of the measuring piece (5);

S4. The driving device (4) drives the track plate (3) to rise, and the parts to be inspected are removed to complete the inspection.