CN112985338A - Gap measuring device for push rod assembly - Google Patents
Gap measuring device for push rod assembly Download PDFInfo
- Publication number
- CN112985338A CN112985338A CN202110224394.9A CN202110224394A CN112985338A CN 112985338 A CN112985338 A CN 112985338A CN 202110224394 A CN202110224394 A CN 202110224394A CN 112985338 A CN112985338 A CN 112985338A
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- Prior art keywords
- push rod
- jaw
- measuring device
- fixing portion
- rod assembly
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the technical field of detection and inspection in assembly and manufacturing, in particular to a push rod assembly gap measuring device which comprises a first fixing part for fixing a first push rod, a second fixing part for fixing a second push rod, a displacement detection device, a guide rail and a driving part, wherein the second fixing part can be arranged on the guide rail in a sliding mode relative to the guide rail, the driving part is connected with the second fixing part, the distance between the first fixing part and the second fixing part is changed, and the displacement detection device detects the moving distance between the first fixing part and the second fixing part. The first fixing part comprises a first clamping jaw, the second fixing part comprises a second clamping jaw, and central axes of the first clamping jaw and the second clamping jaw are located on the same straight line.
Description
Technical Field
The invention relates to the technical field of detection and inspection in assembly and manufacturing, in particular to a push rod assembly gap measuring device.
Background
Along with the improvement of automobile electronization, more and more electronic braking products are applied to the market, adopt the fixed scheme of riveting mostly between the push rod seat in these products and the push rod head, and this kind of scheme needs carry out the detection of push rod clearance between push rod seat and the push rod head in the manufacturing process to but guarantee whole car assembly nature and stability. However, the currently adopted scheme is a scheme of manual measurement, the measurement method is greatly influenced by factors such as manual operation techniques and proficiency differences, the repeatability and reproducibility of measurement results are generally poor, and the stability requirement of a measurement system and the stability control requirement of a manufacturing process are difficult to meet.
In order to solve the problems, a device for measuring the gap of the push rod assembly is introduced, and the displacement detection of the device can realize higher repeatability and reproducibility of a measuring system.
The foregoing description is provided for general background information and is not admitted to be prior art.
Disclosure of Invention
The invention aims to provide a push rod assembly gap measuring device which can realize batch automatic detection of the push rod assembly gaps in the production and manufacturing process, so that the assembly performance and stability of a whole vehicle are ensured.
The invention provides a push rod assembly gap measuring device which comprises a first fixing part for fixing a first push rod, a second fixing part for fixing a second push rod, a displacement detecting device, a guide rail and a driving part, wherein the second fixing part can be arranged on the guide rail in a sliding mode relative to the guide rail, the driving part is connected with the second fixing part, the distance between the first fixing part and the second fixing part is changed, and the displacement detecting device detects the moving distance between the first fixing part and the second fixing part.
Further, first fixed part includes first clamping jaw, the second fixed part includes the second clamping jaw, first clamping jaw reaches the axis of second clamping jaw is located same straight line.
Further, the second fixed part includes base, second clamping jaw and return mechanism, the second clamping jaw set up in on the base, the base set up slidable in on the guide rail, return mechanism with the base links to each other, and when the driving piece does not provide power, supplementary first fixed part or the second fixed part resets.
Furthermore, a groove for accommodating the push rod is formed in one side, close to the first fixing portion, of the base, and the second clamping jaw is arranged in the groove.
Further, the displacement detection device is a displacement detection sensor.
Further, the both sides of base are provided with the extension, return mechanism includes slide pin, return spring and spring locating piece, spring locating piece is the static piece, spring locating piece with be formed with the through-hole on one of them of extension, the through-hole cover is located outside the slide pin, spring locating piece with one of them another of extension with the slide pin is fixed to be linked to each other, return spring set up in the spring locating piece with extend between the piece, the extending direction of slide pin with the guide rail is the same.
Further, the driving piece is a driving air cylinder.
Further, the first fixing portion comprises a first clamping jaw and a first clamping cylinder for controlling the first clamping jaw, and the second fixing portion comprises a second clamping jaw and a second clamping cylinder for controlling the second clamping jaw.
The push rod assembly gap measuring device provided by the invention can utilize the first fixing part, the second fixing part and the displacement detection device to stretch and compress the push rod assembly to the maximum extent, and calculate the gap at the connecting part of the push rod assembly, thereby ensuring the assembly performance and stability of the whole vehicle and greatly improving the working efficiency.
Drawings
Fig. 1 is a schematic view of a gap measuring device of a push rod assembly according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the return mechanism of fig. 1.
FIG. 3 is a schematic structural diagram of a push rod assembly according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the present invention provides a gap measuring device 100 for a push rod assembly, which includes a first fixing portion 10, a second fixing portion 20, a displacement detecting device 30, a guide rail 40 and a driving member 50.
The first fixing portion 10 is disposed at a left end of the guide rail 40, the first fixing portion 10 is provided with a first clamping jaw 11, and the first clamping jaw 11 is connected with a first clamping cylinder (not shown) for controlling clamping and releasing of the first clamping jaw 11.
The second fixing portion 20 is slidably disposed on the guide rail 40, and the second fixing portion 20 includes a base 21, a second jaw 22 and a return mechanism 23.
The base 21 is sleeved on the guide rail 40, the driving element 50 is connected to the second fixing portion 20, specifically, the base 21, and the second fixing portion 20 can slide relative to the guide rail 40 under the driving of the driving element 50, so as to change the distance between the first fixing portion 10 and the second fixing portion 20. A groove 24 is formed in one side of the middle portion of the base 21 close to the first fixing portion 10, a second clamping jaw 22 is disposed in the groove 24, and the push rod assembly 200 can be accommodated in the groove 24 (as shown in fig. 3). The central axes of the first clamping jaw 11 and the second clamping jaw 22 are located on the same straight line. A second clamping cylinder (not shown) is connected to the second clamping jaw 22 for controlling the clamping and unclamping of the second clamping jaw 22.
The return mechanism 23 is installed on two sides of the base 21, the return mechanism 23 is parallel to the guide rail 40, and assists the first fixing portion 10 or the second fixing portion 20 to return when the driving member 50 does not provide power. Specifically, as shown in fig. 2, extending members 25 vertically extend from two sides of the base 21, the return mechanism 23 includes a sliding pin 26, a return spring 27 and a spring positioning block 28, wherein one of the extending member 25 and the spring positioning block 28 has a through hole, the through hole is sleeved outside the sliding pin 26, the installation direction of the sliding pin 26 is consistent with the direction of the guide rail 40, the other one of the spring positioning block 28 and the extending member 25 is fixedly connected with the sliding pin 26, and the return spring 27 is sleeved on the sliding pin 26 and is located between the extending member 25 and the spring positioning block 28.
In this embodiment, a through hole is provided on the extension 25, and a sliding pin 26 is inserted into the through hole and connected to a spring positioning block 28. When the base 21 drives the extending member 25 to move under the action of the driving member 50, the return spring 27 is deformed; the return spring 27 assists in returning the base 21 when the force of the actuator 50 is removed.
The displacement detection device 30 is a displacement detection sensor, and is sleeved on the guide rail 40 which is far away from the first fixing part 10 and close to the second fixing part 20, and the displacement detection device 30 detects the moving distance between the first fixing part 10 and the second fixing part 20.
In the present embodiment, the driving member 50 is a driving cylinder. That is, it is possible to control by providing valves on the pneumatic pipe to separately drive the air cylinder, the first clamping cylinder, and the second clamping cylinder.
As shown in fig. 3, the push rod assembly 200 includes a first push rod 60 and a second push rod 70, a gap 80 is provided between the first push rod 60 and the second push rod 70, one end of the first push rod 60 has an arc-shaped groove structure, and the other end of the first push rod 60 away from the arc-shaped groove structure is clamped by the first clamping jaw 11 during actual measurement; one end of the second push rod 70 is provided with a round ball, the other end of the second push rod 70 far from the round ball is clamped by the second clamping jaw 22 in the actual measurement process, and the arc-shaped groove at one end of the first push rod 60 is connected with the round ball at one end of the second push rod 70 in a matching way.
The ball and the arc-shaped groove connected in the push rod assembly 200 are generally not located in the middle of the arc-shaped groove, that is, the ball is deviated to a certain position of the arc-shaped groove, so that the center of the ball is inconsistent with the position of each groove surface point of the arc-shaped groove, and when the gap 80 between the ball and the arc-shaped groove is measured, an obvious deviation occurs. Therefore, in actual operation, the position of the ball is adjusted to be at the center of the arc-shaped groove.
Firstly, the other end of the first push rod 60 without the arc-shaped groove is clamped by the first clamping jaw 11, the second push rod 70 can be accommodated in the groove 24, the other end of the second push rod 70 is placed in the groove 24 but is not clamped by the second clamping jaw 22, and the other end of the second push rod 70 is in a natural state. The overall length of the push rod assembly 200 is now less than the distance from the first jaw 11 to the horizontal end of the recess 24. Then, the driving member 50 is controlled to push the base 21 to the bottom in a direction approaching the first fixing portion 10, and at this time, the other end of the second push rod 70 is pushed to the end of the groove 24. After the air is pushed to the end part of the groove 24, the air is released after delaying for 1s, and at the moment, the two return mechanisms 23 can return the base 21 to the middle state under the action of the recoil force of the return springs 27, so that the ball is in the central position, namely the ball is in the central position of the arc-shaped groove after being driven by external force. Then, the second clamping jaw 22 is started to clamp the other end, without the round ball, of the second push rod 70, then the driving piece 50 is started to be pushed to the end in the direction of the first fixing part 10, a displacement detection sensor value A is obtained after the driving piece is stabilized, then the driving piece 50 is started to be pulled to the end in the direction far away from the first fixing part 10, and a displacement sensor value B is obtained after the driving piece is stabilized; the final gap 80 displacement, L ═ a-B. By the method, the displacement of the push rod, namely the gap distance at the joint, can be automatically detected.
In summary, the push rod assembly gap measuring device 100 provided by the present invention can utilize the first fixing portion 10, the second fixing portion 20, the displacement detecting device 30, and other devices to stretch and compress the push rod assembly 200 to the maximum extent, and calculate the gap 80 at the joint of the push rod assembly 200, thereby ensuring the assemblability and stability of the entire vehicle, and greatly improving the working efficiency.
In this document, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms can be understood in a specific case to those of ordinary skill in the art.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
As used herein, the ordinal adjectives "first", "second", etc., used to describe an element are merely to distinguish between similar elements and do not imply that the elements so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The utility model provides a push rod subassembly clearance measuring device, characterized in that, including first fixed part (10) that is used for fixed first push rod (60), second fixed part (20) that is used for fixed second push rod (70), displacement detection device (30), guide rail (40) and driving piece (50), second fixed part (20) can for guide rail (40) set up with sliding on guide rail (40), driving piece (50) with second fixed part (20) link to each other, change first fixed part (10) with distance between second fixed part (20), displacement detection device (30) detect first fixed part (10) with the distance of removal between second fixed part (20).
2. The push rod assembly gap measuring device according to claim 1, wherein the first fixing portion (10) comprises a first jaw (11), the second fixing portion (20) comprises a second jaw (22), and central axes of the first jaw (11) and the second jaw (22) are located on the same straight line.
3. The push rod assembly gap measuring device according to claim 1, wherein the second fixing portion (20) includes a base (21), a second jaw (22), and a return mechanism (23), the second jaw (22) being disposed on the base (21), the base (21) being slidably disposed on the guide rail (40), the return mechanism (23) being connected to the base (21) and assisting in returning the first fixing portion (10) or the second fixing portion (20) when the driving member (50) is not powered.
4. A gap measuring device for a push rod assembly according to claim 3, wherein a groove (24) for accommodating the push rod is formed on one side of the base (21) close to the first fixing portion (10), and the second clamping jaw (22) is disposed in the groove (24).
5. A push rod assembly gap measuring device according to claim 1, wherein the displacement detecting means (30) is a displacement detecting sensor.
6. The gap measuring device of the push rod assembly according to claim 3, wherein the base (21) is provided with extending members (25) at two sides thereof, the return mechanism (23) includes a sliding pin (26), a return spring (27) and a spring positioning block (28), the spring positioning block (28) is a stationary member, a through hole is formed in one of the spring positioning block (28) and the extending member (25), the through hole is sleeved outside the sliding pin (26), the other of the spring positioning block (28) and the extending member (25) is fixedly connected with the sliding pin (26), the return spring (27) is disposed between the spring positioning block (28) and the extending member (25), and the extending direction of the sliding pin (26) is the same as that of the guide rail (40).
7. The push rod assembly gap measuring device of claim 1, wherein the drive member (50) is a drive cylinder.
8. The push rod assembly gap measuring device according to claim 1, wherein the first fixing portion (10) includes a first jaw (11) and a first clamping cylinder controlling the first jaw (11), and the second fixing portion (20) includes a second jaw (22) and a second clamping cylinder controlling the second jaw (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110224394.9A CN112985338A (en) | 2021-03-01 | 2021-03-01 | Gap measuring device for push rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110224394.9A CN112985338A (en) | 2021-03-01 | 2021-03-01 | Gap measuring device for push rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112985338A true CN112985338A (en) | 2021-06-18 |
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ID=76351344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110224394.9A Pending CN112985338A (en) | 2021-03-01 | 2021-03-01 | Gap measuring device for push rod assembly |
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| Country | Link |
|---|---|
| CN (1) | CN112985338A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1424196A (en) * | 1972-05-02 | 1976-02-11 | Fulbeck J | Linear dimension measuring apparatus |
| KR101193128B1 (en) * | 2011-05-03 | 2012-10-19 | (주)원진엠앤티 | A center distance measuring device of rotating wheels with ball-bearings therein |
| KR20180099118A (en) * | 2017-02-28 | 2018-09-05 | 일륭기공(주) | Ball joint assembly as the combination of distance measuring device |
| CN210220924U (en) * | 2019-06-19 | 2020-03-31 | 珠海思格特智能系统有限公司 | Guide rod positioning detection tool |
| CN111964628A (en) * | 2020-09-21 | 2020-11-20 | 台州市东部数控设备有限公司 | Automobile generator rotor size measuring device |
-
2021
- 2021-03-01 CN CN202110224394.9A patent/CN112985338A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1424196A (en) * | 1972-05-02 | 1976-02-11 | Fulbeck J | Linear dimension measuring apparatus |
| KR101193128B1 (en) * | 2011-05-03 | 2012-10-19 | (주)원진엠앤티 | A center distance measuring device of rotating wheels with ball-bearings therein |
| KR20180099118A (en) * | 2017-02-28 | 2018-09-05 | 일륭기공(주) | Ball joint assembly as the combination of distance measuring device |
| CN210220924U (en) * | 2019-06-19 | 2020-03-31 | 珠海思格特智能系统有限公司 | Guide rod positioning detection tool |
| CN111964628A (en) * | 2020-09-21 | 2020-11-20 | 台州市东部数控设备有限公司 | Automobile generator rotor size measuring device |
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