CN212747626U - Checking fixture for rapidly detecting pitch of threaded hole of part - Google Patents
Checking fixture for rapidly detecting pitch of threaded hole of part Download PDFInfo
- Publication number
- CN212747626U CN212747626U CN202022122096.2U CN202022122096U CN212747626U CN 212747626 U CN212747626 U CN 212747626U CN 202022122096 U CN202022122096 U CN 202022122096U CN 212747626 U CN212747626 U CN 212747626U
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- screw
- detection
- pitch
- positioning
- threaded holes
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Abstract
The utility model relates to an examine utensil of short-term test part screw hole pitch-row for a plurality of pitch-row of being surveyed the screw hole that are processed on the interior annular end face of detection part, being surveyed the screw hole and being located same circumference, should examine utensil and include positioning disk, contact displacement measurement spare, detection screw and set screw, the positioning disk on process have with the standard part by survey the screw hole position and correspond unanimous inspection hole, during the detection, set screw corresponds respectively and passes detection and fixed connection are on being surveyed the screw hole, detection fix with screw on the positioning disk, contact displacement measurement spare fixed hang in the positioning disk top, and contact displacement measurement spare's gauge head remains throughout and detects the screw contact. Compared with the prior art, the utility model discloses need not to use the three-coordinate to assist, only need use percentage table etc. just can short-term test, the method is simple and easy, is fit for quick detection in batches.
Description
Technical Field
The utility model belongs to the technical field of pitch-row detects, a short-term test part screw hole pitch-row examine utensil is related to.
Background
At present, due to the fact that measuring data of the hole pitch of the threaded hole is inaccurate, detection waste time is long, and detection efficiency is low, many products are repeatedly aligned in the assembling process, and assembling efficiency and product quality are seriously affected. For the tested workpiece as shown in fig. 5, the threaded holes of 6-M8 are machined on the inner annular end surface, the pitch cannot be directly measured, the actual pitch is calculated after data are measured in two directions of each threaded hole, and the actual pitch is compared with the standard to judge whether the workpiece is qualified, so that a long time is needed for next testing of several workpieces, the detection efficiency is very low, and when the workpiece is faced with the problem, a tester only can carry out sampling inspection and cannot achieve complete accurate testing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an examine utensil of short-term test part screw hole pitch-row.
The purpose of the utility model can be realized through the following technical scheme:
a checking fixture for rapidly detecting the hole pitch of a threaded hole on a part is used for detecting the hole pitch of a plurality of detected threaded holes processed on an inner annular end face of the part, the detected threaded holes are located on the same circumferential line, the checking fixture comprises a positioning disc, a contact type displacement measuring part, a detecting screw and a positioning screw, the positioning disc is processed with detecting holes corresponding to the detected threaded holes of a standard part in position, during detection, the positioning screws respectively and correspondingly penetrate through the detecting holes and are fixedly connected to the detected threaded holes, the detecting screw is fixed on the positioning disc, the detecting screw and the positioning screw are both located on the circumferential line where the detected threaded holes are located, the contact type displacement measuring part is fixedly suspended above the positioning disc, and a measuring head of the contact type displacement measuring part is always in contact with the detecting screw.
Furthermore, a fit clearance is formed between the inner wall of the detection hole and the positioning screw.
Furthermore, the positioning disc is tightly attached to the outer circle of the inner annular end face of the part.
Furthermore, a meter frame can be detachably mounted on the side face of the part, the free end of the meter frame extends to the position beside the detection screw above the positioning plate, and the contact type displacement measuring part is fixedly arranged on the free end of the meter frame.
Furthermore, the watch frame is a magnetic watch frame which is fixed on the part through magnetic force adsorption.
Furthermore, the positioning screw is a two-section type reducing screw.
Furthermore, six threaded holes to be measured are formed.
Furthermore, the detection screw is screwed on and fixed on the positioning plate through threads.
Furthermore, the threaded holes to be measured are arranged at equal intervals.
Further, the contact type displacement measuring part is a dial indicator.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the checking fixture is low in cost: the gauge is simple in design and easy to manufacture, and the machining does not need large cost, and is time-saving and labor-saving.
(2) Simple and easy to operate: the utility model discloses need not too high to the inspection personnel skill level, master general skill and can independently accomplish the inspection.
(3) The efficiency is improved: the utility model discloses the check-up time of similar product has been promoted greatly.
(4) The service life of the gauge is long: the checking fixture adopts medium carbon steel to be subjected to quenching and tempering, and simultaneously, the periphery of the checking fixture is subjected to grinding, so that certain hardness and good surface roughness are ensured, the use abrasion is very small, and the service life is ultra-long.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic cross-sectional view C-C of FIG. 2;
FIG. 4 is a schematic view of a puck at a detection aperture;
FIG. 5 is a schematic view of a part under test;
the notation in the figure is:
1-a positioning plate, 2-a dial indicator, 3-a detection screw, 4-a positioning screw, 5-a detection hole, 6-a part to be detected and 7-a threaded hole to be detected.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the following embodiments, unless otherwise specified, all the functional components or structures in the art are conventional components or structures for realizing the corresponding functions.
Example 1:
the embodiment provides a gauge for rapidly detecting the pitch of threaded holes in a part, the structure of which is shown in figure 1, for detecting the pitch of a plurality of tested threaded holes 7 processed on the inner annular end surface of a tested part 6 as shown in FIG. 5, the tested threaded holes 7 are positioned on the same circumferential line, the checking fixture comprises a positioning disk 1, a contact type displacement measuring piece, a detection screw 3 and a positioning screw 4, wherein a detection hole 5 which is correspondingly consistent with a detected threaded hole 7 of a standard part is processed on the positioning disk 1, the positioning screws 4 respectively correspondingly penetrate through the detection holes and are fixedly connected to the detected threaded holes 7, the detection screws 3 are fixed on the positioning plate 1, and the detection screw 3 and the positioning screw 4 are both positioned on the circumferential line where the detected threaded hole 7 is positioned, the contact type displacement measuring part is fixedly suspended above the positioning disk 1, and a measuring head of the contact type displacement measuring part is always kept in contact with the detection screw 3.
Referring to fig. 4, a fit clearance is formed between the inner wall of the detection hole 5 and the positioning screw 4, so that on one hand, the positioning screw 4 can be ensured to pass through smoothly, and meanwhile, the positioning plate 1 can rotate back and forth by utilizing the fit clearance, thereby realizing indirect measurement of the hole distance tolerance of the detected threaded hole 7.
Meanwhile, preferably, the positioning disc 1 is tightly attached to the outer circle of the inner annular end face of the part.
Referring to fig. 1 to 3, a watch frame is detachably mounted on the side surface of the component, the free end of the watch frame extends to the side of the detection screw 3 above the positioning plate 1, and a contact type displacement measuring part is fixedly arranged on the free end of the watch frame. The meter frame is a magnetic meter frame which is fixed on the part through magnetic adsorption.
Furthermore, the positioning screw 4 is a variable diameter screw and can adopt a two-section structure, namely, the lower section is matched and fixed with the tested threaded hole 7, and the upper section can ensure that a fit clearance exists between the positioning screw and the testing hole 5.
Referring to fig. 1 and the like again, six screw holes 7 to be measured are provided. Further, the detection screw 3 may be fixed to the positioning plate 1 by screwing. The screw holes 7 to be measured are arranged at equal intervals. The contact type displacement measuring part is a dial indicator 2.
During the specific work, for a part 6 to be detected shown in fig. 5, a positioning screw 4 is screwed into a 6-M8 threaded hole of the part to be detected, the end face of the positioning screw 4 is required to be tightly attached to the end face of the part, the accuracy detection caused by looseness is guaranteed to be prevented from being inaccurate during the detection, then a positioning disc 1 is arranged on an excircle of the part positioned by the size phi 90h7, meanwhile, 6 detection holes 5 of the positioning disc 1 are guaranteed to be aligned with 6 positioning screws 4, the positioning disc 1 smoothly enters the positioning disc 1, the detection screws 3 are screwed, finally, a magnetic gauge seat with a dial indicator 2 is sucked on the side face of the part to be detected, a measuring head of the dial indicator 2 is contacted with the detection screws 3, so that the positioning disc 1 can be rotated, the matching gap between the detection holes 5 of the positioning disc 1 and the positioning screws 4 is reflected, and the detection screws 3 are screwed on the positioning disc 1 to be guaranteed to be integrated with, the fit clearance is reflected on the dial indicator 2 through the detection screw 3, and whether the form and position tolerance of the detected threaded hole 7 of the detected part 6 is qualified or not is judged through indicating values.
For example, the tolerance of the position degree of the detected part is phi 0.2, the positioning screw 4 of M8 is adopted, the size of the matching part of the upper part of the positioning screw 4 and the positioning disc 1 is phi 11.6H7, the detection hole 5 on the positioning disc 1 is phi 12H7, the matching clearance is 0.4mm, after the actual tolerance of the detected threaded hole 7 is considered, the matching clearance is 0.2mm when the tolerance is maximum, and the matching clearance is 0.4mm when the tolerance is minimum, so that the positioning disc 1 rotates forwards and backwards during detection, and the value difference shown in a percentage table 2 is within 0.2-0.4 mm, and the detection is qualified. After the actual use, the effect is very good, and in the aspect of considering efficiency simultaneously, several sets of set screws 4 have been made more, and set screws 4 are all screwed on to part 6 under test with pneumatic spanner simultaneously, and it only needs very short time to accomplish to get off to detect every like this, has shortened detection time greatly.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. The detection tool is characterized by comprising a positioning disc, a contact type displacement measurement piece, a detection screw and a positioning screw, wherein the positioning disc is provided with a detection hole corresponding to the position of the detected threaded hole of a standard part, the positioning screw correspondingly penetrates through the detection hole and is fixedly connected to the detected threaded hole during detection, the detection screw is fixed on the positioning disc, the detection screw and the positioning screw are both positioned on the circumferential line where the detected threaded hole is positioned, the contact type displacement measurement piece is fixedly suspended above the positioning disc, and a measuring head of the contact type displacement measurement piece is always kept in contact with the detection screw.
2. The inspection device for rapidly detecting the pitch of the threaded holes of the parts according to claim 1, wherein a fit clearance is formed between the inner wall of the detection hole and the positioning screw.
3. The inspection device for rapidly detecting the pitch of the threaded holes of the part according to claim 1, wherein the positioning disc is tightly attached to the outer circle of the inner annular end face of the part.
4. The gauge for rapidly detecting the pitch of the threaded holes of the part as claimed in claim 1, wherein a gauge stand is detachably mounted on the side surface of the part, the free end of the gauge stand extends to the side of the detection screw above the positioning plate, and the contact type displacement measuring piece is fixedly arranged on the free end of the gauge stand.
5. The inspection device for rapidly detecting the pitch of the threaded holes of the part as claimed in claim 4, wherein the gauge stand is a magnetic gauge stand fixed on the part by magnetic attraction.
6. The inspection device for rapidly detecting the pitch of the threaded hole of the part according to claim 1, wherein the positioning screw is a two-section type variable diameter screw.
7. The inspection device for rapidly detecting the pitch of the threaded holes of the part as claimed in claim 1, wherein there are six threaded holes to be detected.
8. The inspection device for rapidly detecting the pitch of the threaded holes of the part according to claim 1, wherein the detection screw is screwed and fixed on the positioning plate.
9. The inspection device for rapidly detecting the pitch of the threaded holes of the part as claimed in claim 1, wherein the threaded holes to be detected are arranged at equal intervals.
10. The gauge for rapidly detecting the pitch of the threaded holes of the part as claimed in claim 1, wherein the contact displacement measuring part is a dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022122096.2U CN212747626U (en) | 2020-09-24 | 2020-09-24 | Checking fixture for rapidly detecting pitch of threaded hole of part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022122096.2U CN212747626U (en) | 2020-09-24 | 2020-09-24 | Checking fixture for rapidly detecting pitch of threaded hole of part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212747626U true CN212747626U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022122096.2U Expired - Fee Related CN212747626U (en) | 2020-09-24 | 2020-09-24 | Checking fixture for rapidly detecting pitch of threaded hole of part |
Country Status (1)
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|---|---|
| CN (1) | CN212747626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251993A (en) * | 2020-09-24 | 2022-03-29 | 苏州伊徕尔特机械有限公司 | Checking fixture for rapidly detecting pitch of threaded holes of parts |
-
2020
- 2020-09-24 CN CN202022122096.2U patent/CN212747626U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251993A (en) * | 2020-09-24 | 2022-03-29 | 苏州伊徕尔特机械有限公司 | Checking fixture for rapidly detecting pitch of threaded holes of parts |
| CN114251993B (en) * | 2020-09-24 | 2025-02-14 | 苏州伊徕尔特机械有限公司 | A kind of inspection tool for quickly detecting the pitch of threaded holes in parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |