CN109029317B - Detection mechanism - Google Patents
Detection mechanism Download PDFInfo
- Publication number
- CN109029317B CN109029317B CN201810917708.1A CN201810917708A CN109029317B CN 109029317 B CN109029317 B CN 109029317B CN 201810917708 A CN201810917708 A CN 201810917708A CN 109029317 B CN109029317 B CN 109029317B
- Authority
- CN
- China
- Prior art keywords
- wedge
- measuring head
- positioning
- measuring
- positioning rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
Abstract
The invention discloses a detection mechanism. The detection mechanism comprises at least two positioning rods and measuring heads corresponding to the positioning rods in number, wherein the measuring heads are arranged on the positioning rods in a telescopic manner; and a wedge including a slope with which one end of the measuring head abuts, the wedge being configured to be slidable relative to the measuring head so that the other end of the measuring head protrudes from the positioning rod to abut with an inner wall of the measured piece. The detection mechanism provided by the invention has higher efficiency for testing the tightness of the soft box body.
Description
Technical Field
The invention relates to the technical field of mechanical devices, in particular to a detection mechanism.
Background
With the rapid development of wireless technologies, various wireless electronic devices are receiving wide attention. For example, TWS (True Wireless headset) is a widely used Wireless device. The wireless device is often connected to a terminal device such as a smart terminal to provide a terminal accessory application for a user, for example, music in a smart phone is played for the user by using a wireless headset. Wireless devices are not wired and require their internal battery power to maintain normal use. Generally, a charging box is used to charge and store a wireless device.
When the box that charges was placed and is circulated in the carrier, because the inner wall of circulation carrier is soft silica gel material, and is the profiling face, consequently, the uniformity of carrier size is wayward, causes the low excessive extrusion to the box casing that charges easily, makes it warp too big, causes the condition of the interior subassembly damage of box that charges to appear. Meanwhile, the soft hardness of the soft silica gel material is different, so that the extrusion force formed by different carriers on the charging box is more difficult to have consistency.
Currently, the dimensional measurement of the carrier to control its compression force on the formation of the charging box is more adopted, but this method does not fully reflect the problem of the tightness of the carrier. Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
One object of the present invention is to provide a new solution for a tightness test detection mechanism.
According to a first aspect of the present invention there is provided a detection mechanism comprising
The device comprises at least two positioning rods and measuring heads corresponding to the positioning rods in number, wherein the measuring heads are arranged on the positioning rods in a telescopic manner; and
a wedge including a slope with which one end of the measuring head abuts, the wedge being configured to be slidable relative to the measuring head so that the other end of the measuring head protrudes from the locating rod to abut an inner wall of a measured piece.
Optionally, the support further comprises a bottom plate and a support arranged on the bottom plate, wherein the support comprises a mounting portion and a supporting portion for supporting the mounting portion on the bottom plate;
the positioning rod is slidably arranged on the mounting part and is configured to adjust the distance between the measuring head and the mounting part; one end with a wider diameter of the wedge is connected with a push rod, and the push rod is slidably arranged on the mounting part;
the push rod is arranged on the mounting portion, and the driving device is configured to drive the push rod to move relative to the mounting portion.
Optionally, two measuring heads are arranged and symmetrically distributed on two sides of the wedge inclined surface; two the locating lever passes through the locating plate and connects, connect on the wedge the tip of push rod is provided with the slurcam, the locating plate is located the installation department with between the slurcam, the slurcam orientation can drive when the installation department removes the locating plate removes.
Optionally, at least a part of the positioning rod is provided with an external thread, and a nut is disposed on the external thread of the positioning rod and configured to limit relative sliding between the positioning rod and the mounting portion.
Optionally, a positioning block is disposed on the base plate, and the positioning block is configured to limit the position of the measured member on the base plate.
Optionally, scales are arranged on the measuring head along the telescopic direction.
Optionally, the end surface of the measuring head abutting the wedge is parallel to the inclined surface of the wedge.
Optionally, the measuring head includes a sliding column slidably connected to the positioning rod, and a contact disposed on the sliding column and facing the sidewall of the measured object, and the contact is made of a rubber material.
Optionally, a rib is formed on the inclined surface of the wedge, and step surfaces parallel to the positioning rod are formed on two sides of the rib in a concave manner; the measuring head penetrates through the annular mounting part and abuts against the rib sheet, and a sliding wall extends out of the position corresponding to the step surfaces on two sides of the rib sheet.
Optionally, the driving device is an air cylinder, and an air pressure adjusting device is connected to the air cylinder.
According to one embodiment of the invention, the testing efficiency of the tightness of the soft box body is higher.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic view of a detection apparatus provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a test device provided in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a test device provided in accordance with an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a test device provided in accordance with an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of a detection device provided in accordance with an embodiment of the present invention;
fig. 6 is a partially enlarged view of a detection apparatus provided in an embodiment of the present invention.
Wherein:
11-positioning rod, 12-wedge piece, 13-measuring head, 14-push rod, 15-positioning plate, 16-pushing plate, 17-mounting part, 18-supporting part, 19-bottom plate, 20-measured piece, 21-positioning block, 22-air pressure adjusting device, 23 rib, 24-sliding arm, 25-annular mounting part, 26-step surface, 27-nut, 28-sliding column and 29-contact head.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The invention provides a detection mechanism, which comprises a wedge 12, two positioning rods 11 and measuring heads 13 corresponding to the number of the positioning rods 11, as shown in figure 1.
Specifically, two positioning rods 11 are respectively provided with a measuring head 13, the measuring heads 13 are telescopically arranged on the positioning rods 11, the measuring heads 13 can be driven by the positioning rods 11 to extend into a measured piece 20 with a cylindrical side wall, and an extrusion force towards the periphery of the side wall can be applied to the side wall of the measured piece 20 through the measuring heads 13. The wedge 12 comprises a bevel connecting two end faces, one end of the measuring head 13 is connected with the bevel of the wedge 12 in a sliding mode, the other end of the measuring head faces the inner wall of the measured piece 20, and the wedge 12 can slide relative to the measuring head under the driving of external force.
As shown in fig. 3-4, the measuring head 13 abuts against the inclined surface of the wedge 12 near the end with the smaller diameter, the wedge 12 is driven by external force to slide the end with the larger diameter toward the measuring head 13, the measuring heads 13 are driven to move away from each other and extend out of the positioning rod 11 to press the side wall of the measured piece 20 outwards, so that a pressing force is formed between the side wall and the measuring head 13. Since the driving force provided by the external force is constant, when the pressing force between the measuring head 13 and the side wall is too large, the relative sliding between the measuring head 13 and the wedge 12 is stopped, and the pressing force between the measuring head 13 and the side wall and the driving force provided by the driving device reach a balanced state.
The invention provides a detecting device, which can make the measuring heads 13 move away from each other by using wedge pieces 12, thereby pressing the side walls of a detected piece 20 outwards. When the pushing force of the wedge 12 pushing the measuring head 13 to move outwards is the same as the pressing force received by the measuring head 13, the pressing force between the measuring head 13 and the side wall and the driving force provided by the driving device reach a balanced state, and the movement of the wedge 12 is stopped. At this time, by looking at the distance that the measuring head 13 moves relative to the positioning rod 11, the magnitude of the strain of the measured object 20 can be determined, and the tightness of the measured object 20 can be determined. The detection method is simple, convenient to operate and high in efficiency.
Further, the detection mechanism also comprises a driving device configured to provide a preset driving force to drive the wedge 12 to slide relative to the measuring head 13. Optionally, the driving device is an air cylinder, and as shown in fig. 1, an air pressure adjusting device 22 is further connected to the air cylinder, and the air pressure adjusting device 22 is disposed on the bottom plate 19, so as to facilitate operation. The skilled person can also select other driving devices, such as an electric cylinder, an electric motor, etc., and all solutions that achieve the same technical effect fall within the scope of the present invention.
As shown in fig. 1, the detection mechanism further includes a bottom plate 19 and a bracket provided on the bottom plate 19, the bracket including a mounting portion 17 and a supporting portion 18 for supporting the mounting portion 17 on the bottom plate 19. Specifically, the positioning rod 11 is slidably disposed on the mounting portion 17, and by adjusting the relative position between the positioning rod 11 and the mounting portion 17, the distance between the measuring head 13 at the end of the positioning rod 11 and the mounting portion 17 can be controlled, thereby controlling the position of the measuring head 13 extending into the tested piece 20. In addition, the push rod 14 is connected to the one end that wedge 12 diameter is wider, and push rod 14 sets up on installation department 17 slidably, and drive arrangement can drive push rod 14 and move relative installation department 17, and then drive wedge 12 and move.
Specifically, two measuring heads 13 are correspondingly distributed on two sides of the inclined surface of the wedge 12, two positioning rods 11 are connected through a positioning plate 15, a pushing plate 16 is arranged at the end part of the wedge 12, which is connected with a push rod 14, and the positioning plate 15 is positioned between an installation part 17 and the pushing plate 16. Wherein, be provided with the through-hole that supplies locating lever 11 to pass on locating plate 15, locating lever 11 passes behind the through-hole and locating plate 15 fixed connection, and when push rod 14 upwards moved, the catch bar 16 that sets up on push rod 14 and locating plate 15 butt to drive locating lever 11 upwards movement. After the positioning rod 11 drives the measuring head 13 to move to the preset height, the positioning rod 11 and the mounting part 17 are relatively fixed, and the two measuring heads 13 are positioned on the inclined surface of the wedge piece 12 and close to the shorter end of the diameter, so that the limitation on the wedge piece 12 can be formed, and the wedge piece 12 does not keep the original height when the driving device drives.
Further, an external thread is provided at least partially on the positioning rod 11, a nut 27 is provided on the external thread portion of the positioning rod 11, and the nut 27 is disposed so as to be capable of restricting relative sliding between the positioning rod 11 and the mounting portion 17. Specifically, after the measuring head 13 is located at the preset height, the nut 27 limits the relative sliding between the positioning rod 11 and the mounting portion 17, so that the positioning rod 11 cannot move downwards continuously. After the nut is limited, the positioning rod 11 can also move upwards relative to the mounting part 17. Furthermore, the height of the measuring head 13 can be adjusted by adjusting the position of the nut 27 on the positioning rod 11. A person skilled in the art may also use other structures to limit the positioning rod 11, for example, after the measuring head 13 is located at a preset height, a positioning element is clamped at a position where the positioning rod 11 is flush with the mounting portion 17, so as to limit the positioning rod 11.
Further, the bottom plate 19 is provided with a positioning block 21, and the positioning block 21 is used for limiting the detected piece 20 in the horizontal direction, so that the stability of the detected piece 20 during detection is improved, and the accuracy of a detection result is improved. Wherein, the positioning block 21 is movably arranged on the bottom plate 19 so as to limit the tested pieces 20 with different sizes.
Furthermore, as shown in fig. 5, the measuring head 13 is provided with scales, and after the detection mechanism completes the detection operation, the distance of the measuring head 13 moving relative to the positioning rod 11 can be visually read, so that the detection efficiency is improved.
Further, the end face of the end, abutted to the wedge 12, of the measuring head 13 is parallel to the inclined face of the wedge 12, so that the end face of the measuring head 13 can be sufficiently attached to the wedge 12, the measuring head 13 and the wedge 12 can slide conveniently, meanwhile, the thrust generated by the wedge 12 to the measuring head 13 can be basically perpendicular to the side wall of the measured piece 20, and the accuracy of the detection result is improved.
As shown in fig. 5, the measuring head 13 includes a sliding column 28 connected to the positioning rod 11 in a sliding manner, and a contact 29 disposed on the sliding column 28 and facing the side wall of the measured object. Preferably, the contact head 29 is made of a rubber material, and the diameter of the contact head 29 is small, so that scratches and extrusion marks of the contact head 29 on the inner wall of the tested piece 20 can be avoided, and the stability of the detection device is improved. Meanwhile, the contact head 29 with the smaller diameter is abutted against the side wall of the measured piece 20, so that the deformation of the side wall generated after the measuring head 13 extrudes the side wall can be amplified, the tightness of the measured piece 20 can be better observed, the preset driving force of the driving device can be set smaller, and the detection cost is saved. Wherein the scale is provided on the outer surface of the sliding column 28. The contact head 29 may be made of other soft materials, which is not limited in this application.
As shown in fig. 6, a rib 23 is formed on an inclined surface of the wedge 12, step surfaces 26 parallel to the positioning rod 11 are recessed on both sides of the rib 23, an annular mounting portion 25 is provided at one end of the positioning rod 11 extending into the measured object 20, the measuring head 13 passes through the annular mounting portion 25 and abuts against the rib 23, and a sliding wall 24 extends from the annular mounting portion 25 at a position corresponding to the step surfaces 26 on both sides of the rib 23. The rib 23 and the sliding arms 24 on the two sides of the rib form a limit on the left and right directions when the measuring head 13 moves forwards, so that the measuring head 13 is prevented from shaking left and right when moving, and the measuring precision of the detecting device is improved.
Alternatively, the positioning rods 11 and the measuring head 13 may be provided in three, respectively, distributed around the wedge 12 at 120 ° to each other; or, the locating lever 11 and the measuring head 13 can be respectively provided with four, and mutually 90 degrees are distributed around the wedge 12, and simultaneously, a plurality of positions of the side wall of the measured piece 20 are detected, so that the measuring precision and the authenticity are improved. The application does not limit the number of the positioning rods 11 and the measuring heads 13, and can be set to be more. The skilled person can set the setting according to needs, and all changes in quantity are within the scope of protection of this application.
Fig. 2-4 show the working flow of the detection device provided by the invention.
As shown in fig. 2, a detection preparation work is performed to set the air pressure of the air cylinder by the air pressure adjusting device 22; lifting the push rod 14 to drive the measuring head 13 to be in a lifting state so as to place the measured piece 20 on the bottom plate 19, and then fixing the measured piece 20 on the bottom plate 19 through the fixing block 21;
as shown in fig. 3, after the measured piece 20 is placed at the detection position, the push rod 14 is released, the measuring head 13 moves downwards, and after the measured piece 20 moves to the preset position, a limit is formed between the positioning rod 11 and the mounting part 17, so that the measuring head 13 is fixed at the preset height;
as shown in fig. 4, after the measuring head 13 is inserted into the measured member 20 and is at a predetermined height, the air cylinder with the air pressure adjusted in advance is activated to operate, and the wedge member 12 is driven to move downward, so that the measuring head 13 presses the side wall. After the extrusion force is balanced with the driving force of the driving device, the scales on the measuring head 13 are read, and then the tightness of the measured piece 20 is judged according to the scale value, so that the detection is completed.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. A detection mechanism for detecting the tightness of a soft tested piece is characterized by comprising:
the device comprises at least two positioning rods and measuring heads corresponding to the positioning rods in number, wherein the measuring heads are arranged on the positioning rods in a telescopic manner; and
a wedge including a slope with which one end of the measuring head abuts, the wedge being configured to be slidable relative to the measuring head so that the other end of the measuring head protrudes from the positioning rod to abut an inner wall of a measured piece;
the support comprises an installation part and a supporting part used for supporting the installation part on the bottom plate;
the positioning rod is slidably arranged on the mounting part and is configured to adjust the distance between the measuring head and the mounting part; one end with a wider diameter of the wedge is connected with a push rod, and the push rod is slidably arranged on the mounting part;
the driving device is configured to drive the push rod to move relative to the mounting part;
the measuring head is provided with scales along the telescopic direction, and the end surface of the measuring head abutted to the wedge is parallel to the inclined surface of the wedge.
2. The mechanism according to claim 1, wherein said measuring heads are provided in two, symmetrically disposed on either side of said wedge ramp; two the locating lever passes through the locating plate and connects, connect on the wedge the tip of push rod is provided with the slurcam, the locating plate is located the installation department with between the slurcam, the slurcam orientation can drive when the installation department removes the locating plate removes.
3. The detection mechanism according to claim 1, wherein the positioning rod is at least partially provided with an external thread, and a nut is provided on the external thread of the positioning rod, and the nut is configured to limit relative sliding between the positioning rod and the mounting portion.
4. The detection mechanism as claimed in claim 1, wherein a positioning block is disposed on the base plate, the positioning block being configured to define a position of the detected member on the base plate.
5. The inspection mechanism of claim 1, wherein the measuring head comprises a sliding post slidably connected to the positioning rod, and a contact head disposed on the sliding post and facing the sidewall of the inspected piece, the contact head being made of a rubber material.
6. The detecting mechanism according to claim 1, wherein a rib is formed on the inclined surface of the wedge, and step surfaces parallel to the positioning rods are formed on both sides of the rib in a recessed manner; the measuring head penetrates through the annular mounting part and abuts against the rib sheet, and a sliding wall extends out of the position corresponding to the step surfaces on two sides of the rib sheet.
7. The sensing mechanism of claim 1, wherein the driving device is a pneumatic cylinder, and a pneumatic pressure adjusting device is connected to the pneumatic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917708.1A CN109029317B (en) | 2018-08-13 | 2018-08-13 | Detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917708.1A CN109029317B (en) | 2018-08-13 | 2018-08-13 | Detection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109029317A CN109029317A (en) | 2018-12-18 |
| CN109029317B true CN109029317B (en) | 2020-11-24 |
Family
ID=64633914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917708.1A Active CN109029317B (en) | 2018-08-13 | 2018-08-13 | Detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109029317B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082521A (en) * | 2020-09-17 | 2020-12-15 | 江苏徐工工程机械研究院有限公司 | Cylinder inner hole spiral line detection device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3081979B2 (en) * | 1992-05-08 | 2000-08-28 | セイコーインスツルメンツ株式会社 | microscope |
| US6575430B1 (en) * | 2002-04-10 | 2003-06-10 | National Coupling Company, Inc. | Hydraulic coupling with dovetail seal having multiple radial sealing surfaces |
| JP5863475B2 (en) * | 2012-01-20 | 2016-02-16 | 三菱重工業株式会社 | Hole shape measuring apparatus and hole shape measuring method |
| CN203587020U (en) * | 2013-11-21 | 2014-05-07 | 沈阳黎明航空发动机(集团)有限责任公司 | Profile tolerance measuring device for inner molding surface |
| CN106705798A (en) * | 2017-03-08 | 2017-05-24 | 重庆大学 | Tooth thickness measuring tool for annular gear |
| CN108332694B (en) * | 2018-01-19 | 2020-07-21 | 江西核工业建设有限公司 | Geological disaster prevention crack size detection equipment |
-
2018
- 2018-08-13 CN CN201810917708.1A patent/CN109029317B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 深孔内径的在线精密测量原理及系统;丁正龙等;《西安交通大学学报》;20150131;第49卷(第1期);第65-71页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109029317A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106849530B (en) | Small-sized motor test bed for vehicle | |
| CN106769574B (en) | Device and method for testing relation between residual stress and surface hardness of metal component | |
| CN109029317B (en) | Detection mechanism | |
| CN108801192B (en) | Motor stator terminal height automatic checking device | |
| CN115235402A (en) | High-precision detection machine | |
| CN213021458U (en) | 3D detection device for diaphragm | |
| CN219495176U (en) | Three-point type inner diameter detection device | |
| CN211463955U (en) | Quick measuring device of bearing inside and outside diameter | |
| CN217250756U (en) | Screw rod end diameter detection device | |
| CN213612711U (en) | Axial clearance detection executing device of plane thrust ball bearing | |
| CN212471149U (en) | Nondestructive testing turnover mechanism | |
| CN209656007U (en) | A kind of dimension automatic detection device | |
| CN214333726U (en) | Detection equipment for detecting depth of rivet hole | |
| JP4802311B2 (en) | Measuring device for static balance of rotating body | |
| CN207907779U (en) | A kind of measuring table and its measurer for measuring automobile lamp lampshade size | |
| CN220982996U (en) | Automatic testing device for colloid hardness | |
| CN214173291U (en) | Detection device of position measurement sensor | |
| CN220872250U (en) | Axial rigidity measuring equipment and measuring device of tubular member | |
| CN215447810U (en) | Steel construction check out test set | |
| CN112082462A (en) | Quick flatness/offset detection device | |
| CN220982921U (en) | Overhead floor pressure detection device | |
| CN219607873U (en) | Steel tape verification platform machine | |
| CN211877093U (en) | Module full-size detection workbench | |
| CN218157333U (en) | Load loading device of mechanical metering device | |
| CN111693376B (en) | Concrete compressive strength detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |