CN211425321U - Straightness detection device - Google Patents
Straightness detection device Download PDFInfo
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- CN211425321U CN211425321U CN201922009886.7U CN201922009886U CN211425321U CN 211425321 U CN211425321 U CN 211425321U CN 201922009886 U CN201922009886 U CN 201922009886U CN 211425321 U CN211425321 U CN 211425321U
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Abstract
The utility model provides a straightness detection device, which relates to the technical field of detection tools and comprises a base body, wherein two first detection needles and at least one second detection needle are arranged on the base body, and the first detection needles and the second detection needles are positioned on a straight line; the second detection needles are connected with the base body in a sliding manner, the straightness detection device further comprises elastic components which are equal in number and correspond to the second detection needles in a one-to-one manner, one ends of the elastic components are connected with the base body, the other ends of the elastic components are connected with the second detection needles corresponding to the elastic components, and the elastic components are used for applying force to the second detection needles in the direction of the head parts of the second detection needles so as to maintain the outward extending amplitude of the second detection needles to exceed the connecting line between the two head parts of the first detection needles, and the exceeding amplitude is a set distance; the second detects the needle and is provided with scale or apart from detecting element, and apart from detecting element and be used for detecting the second and detect the sliding distance of needle for the base member, whole testing process is simple and convenient, and can the accurate crooked volume that obtains the bent axle.
Description
Technical Field
The utility model belongs to the technical field of the detection instrument technique and specifically relates to a straightness accuracy detection device is related to.
Background
The crankshaft is one of the key parts in an automobile engine, is a typical asymmetric, irregular and complex-shaped part, and inevitably generates deformation during forging, trimming and heat treatment processes, so that form and position tolerances of the crankshaft need to be detected.
The straightness is taken as an important factor influencing the crankshaft blank processing, and the machining precision of the crankshaft can be ensured only by strictly and effectively measuring and controlling the straightness. The existing detection sample plate comprises three detection needles fixedly connected to the sample plate and having the same height, a feeler gauge is required to be inserted into a gap between the middle detection needle and a crankshaft blank in the process of straightness detection, whether the bending quantity of a crankshaft meets requirements or not is detected, the measurement process is complicated, the efficiency is low, large errors exist, and the bending quantity of the crankshaft cannot be effectively quantified.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a straightness accuracy detection device to solve and present in the straightness accuracy detection, need utilize the feeler gauge to insert the clearance between middle detection needle and the bent axle blank, whether the crooked volume of detection bent axle satisfies the requirement, the measurement process is numerous and diverse, and efficiency is lower, has great error, the technical problem that bent axle crooked volume can not effectively quantify moreover.
The utility model provides a straightness detection device, which comprises a base body;
the substrate is provided with two first detection needles and at least one second detection needle, and the first detection needles and the second detection needles are positioned on the same straight line; the heads of the first detection pin and the second detection pin extend outwards;
the second detection needle is connected with the base body in a sliding mode, so that the outward extending amplitude of the head of the second detection needle is adjustable;
the straightness detection device also comprises elastic components which are equal in number and correspond to the second detection needles one by one, one end of each elastic component is connected with the base body, the other end of each elastic component is connected with the corresponding second detection needle, and the elastic components are used for applying force to the second detection needle in the direction of the head part of the second detection needle so as to maintain the outward extending amplitude of the second detection needle to exceed the connecting line between the two head parts of the first detection needle, and the exceeding amplitude is a set distance;
the second detection needle is provided with scales or a distance detection unit, and the distance detection unit is used for detecting the sliding distance of the second detection needle relative to the base body.
Furthermore, the number of the second detection pins is multiple, and the second detection pins are arranged on the substrate at intervals;
the plurality of second detection pins are disposed between the two first detection pins.
Furthermore, the number of the second detection pins is one, and the distance between the second detection pin and the two first detection pins is equal along the length direction of the substrate.
Furthermore, a through hole penetrating through the upper surface and the lower surface of the base body is formed in the base body, the extending direction of the through hole is perpendicular to the length direction of the base body, and the second detection pin is inserted into the through hole;
the elastic component is sleeved on the second detection pin, a convex block is arranged on the second detection pin, one end of the elastic component is connected with the convex block in an abutting mode, and the other end of the elastic component is connected with the base body.
Further, the straightness detection device comprises a first sleeve and a second sleeve, the first sleeve is connected with the upper surface of the base body, and the second sleeve is connected with the lower surface of the base body;
the inner hole of the first sleeve and the inner hole of the second sleeve are respectively aligned with the through hole;
the second detection needle is inserted in the first sleeve and the second sleeve; one end of the second detection needle, which is far away from the head part of the second detection needle, is abutted against the measuring head of the distance detection unit;
the elastic component comprises a first elastic component and a second elastic component, one end of the first elastic component is abutted with one side of the bump, and the other end of the first elastic component is abutted with one end of the first sleeve facing the second sleeve;
one end of the second elastic component is abutted against the other side of the bump, and the other end of the second elastic component is abutted against one end, facing the first sleeve, of the second sleeve.
Further, the elastic component is a spring.
Further, the distance detection unit is a dial indicator.
Furthermore, two first detection needle with the one end that the base member is connected all is provided with external screw thread portion, external screw thread portion runs through the upper and lower surface of base member, be connected with two lock nut in the external screw thread portion, two lock nut sets up the base member both sides, and respectively with the upper surface and the lower surface butt of base member, through the adjustment lock nut with the hookup location of first detection needle is in order to adjust the outside distance that stretches out of head of first detection needle, thereby adjusts the second detection needle outwards surpasss two the range of the line between the first detection needle head portion.
Further, a first through groove and a second through groove which penetrate through the upper surface and the lower surface of the base body are formed in the base body, and the first through groove and the second through groove extend along the length direction of the base body;
one first detection needle is connected in the first through groove in a sliding mode; the other first detection needle is connected in the second through groove in a sliding mode, so that the distance between the two first detection needles and the second detection needle is adjustable.
Furthermore, the two first detection pins are vertically connected with the base body.
The utility model provides a straightness detection device, straightness detection model includes the base member, be provided with two first detection needles and at least one second detection needle on the base member, first detection needle with the second detection needle is located a straight line; the heads of the first detection pin and the second detection pin extend outwards; the second detection needle is connected with the base body in a sliding mode, so that the outward extending amplitude of the head of the second detection needle is adjustable; the straightness detection device also comprises elastic components which are equal in number and correspond to the second detection needles one by one, one end of each elastic component is connected with the base body, the other end of each elastic component is connected with the corresponding second detection needle, and the elastic components are used for applying force to the second detection needle in the direction of the head part of the second detection needle so as to maintain the outward extending amplitude of the second detection needle to exceed the connecting line between the two head parts of the first detection needle, and the exceeding amplitude is a set distance; the second detection needle is provided with scales or a distance detection unit, and the distance detection unit is used for detecting the sliding distance of the second detection needle relative to the base body. During the use, the head that utilizes two first detection needles of straightness accuracy detection device respectively with the surface butt of bent axle, the head of second detection needle also with the surface butt of bent axle, the elastomeric element atress, drive the second and detect the needle and to keeping away from the direction motion of bent axle surface, can detect out the sliding distance of second detection needle for the base member through the scale that sets up on the second detection needle or apart from detecting element, thereby obtain the bending amount of bent axle at second detection needle department, afterwards, keep away from the bent axle with straightness accuracy detection device, the second detection needle drives the second and detects the needle and auto-recovery to initial position under the effect of elastomeric element elasticity. Whole testing process is simple and convenient, and can accurately obtain the crooked volume of bent axle, and elastomeric element drives the second and detects the needle and reply initial position automatically, makes things convenient for the detection of next straightness accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a straightness detection device provided in embodiment 1 of the present invention;
fig. 2 is a top view of a straightness detection device provided in embodiment 1 of the present invention;
FIG. 3 is an enlarged view of section I of FIG. 1;
fig. 4 is a cross-sectional view of a first sleeve of a straightness detection apparatus provided in embodiment 1 of the present invention;
fig. 5 is a plan view of a first sleeve of a straightness detection apparatus according to embodiment 1 of the present invention;
fig. 6 is a cross-sectional view of a second sleeve of the straightness detection apparatus provided in embodiment 1 of the present invention;
fig. 7 is a plan view of a second sleeve of the straightness detection apparatus according to embodiment 1 of the present invention;
fig. 8 is a front view of a straightness detection device according to embodiment 2 of the present invention;
fig. 9 is a front view of a straightness detection device provided in embodiment 3 of the present invention;
fig. 10 is a plan view of a straightness detection device according to embodiment 3 of the present invention;
fig. 11 is a schematic view of a base body of a linearity detecting device according to embodiment 3 of the present invention.
Icon: 100-a substrate; 110-a via; 120-a first through slot; 130-a second through slot; 200-a first detection pin; 210-a lock nut; 300-a second detection pin; 301-a bump; 310-a first sleeve; 311-a first bore; 312-a first mounting hole; 313-a first boss; 320-a second sleeve; 321-a second inner bore; 322-a second mounting hole; 323-a second boss; 330-bolt assembly; 410-a first spring; 420-a second spring; 500-a distance detection unit; 510-gauge head.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-7, the straightness detection device provided by the present invention comprises a base 100; two first detection pins 200 and at least one second detection pin 300 are arranged on the substrate 100, and the first detection pins 200 and the second detection pins 300 are positioned on a straight line; the heads of the first and second sensing pins 200 and 300 are protruded outwardly.
The second sensing pin 300 is slidably coupled to the base 100 such that the extent of the outward protrusion of the head of the second sensing pin 300 is adjustable.
The straightness detection device further includes elastic members corresponding to the second detection pins 300 in the same number, one end of each elastic member is connected to the base 100, and the other end of each elastic member is connected to the corresponding second detection pin 300, so as to apply a force to the second detection pin 300 in the direction of the head of the second detection pin 300, so as to maintain the extent of outward extension of the second detection pin 300 beyond the connection line between the heads of the two first detection pins 200, and the extent of the outward extension is a set distance.
The second sensing pin 300 is provided with a scale or distance detecting unit 500, and the distance detecting unit 500 is used to detect the sliding distance of the second sensing pin 300 with respect to the base 100.
Specifically, the second sensing pin 300 is provided with a scale, and the distance of the relative movement of the second sensing pin 300 with respect to the base 100 can be read through the scale, so that the worker can visually detect the bending amount of the crankshaft at the second sensing pin 300.
Of course, the distance detecting unit 500 may be disposed at one end of the second detecting pin 300 away from the head of the second detecting pin 300, the end of the second detecting pin 300 abuts against the measuring head 510 of the distance detecting unit 500, and the distance detecting unit 500 may display the moving amount of the second detecting pin 300, so that the worker can directly read the moving distance of the second detecting pin 300 relative to the base 100, and the bending amount of the crankshaft can be obtained.
Preferably, the distance detecting unit 500 is a dial gauge.
Specifically, the distance detecting unit 500 may be a digital dial indicator capable of directly displaying the moving amount of the second detecting pin 300 with respect to the base 100, i.e., the bending amount of the crankshaft at this point.
When the device is used, the heads of the two first detection needles 200 of the straightness detection device are respectively abutted against the outer surface of the crankshaft, the head of the second detection needle 300 is also abutted against the outer surface of the crankshaft, the elastic component is stressed to drive the second detection needle 300 to move towards the direction far away from the outer surface of the crankshaft, the sliding distance of the second detection needle 300 relative to the base body 100 can be detected through the scales or the distance detection unit 500 arranged on the second detection needle 300, so that the bending quantity of the crankshaft at the second detection needle 300 is obtained, then, the straightness detection device is far away from the crankshaft, and the second detection needle 300 drives the second detection needle 300 to automatically return to the initial position under the action of the elastic force of the elastic component. Whole testing process is simple and convenient, and can accurately obtain the crooked volume of bent axle, and elastomeric element drives second detection needle 300 and auto-recovery to initial position, makes things convenient for the next detection of straightness accuracy.
Before the straightness detection device is used for detecting the straightness of the crankshaft, the straightness detection device is placed on a detection platform, the straightness detection device is slightly pressed to ensure that the head of the second detection pin 300 on the base body 100 and the heads of the other two first detection pins 200 are at the same height, the digital display dial indicator is reset to zero, and the straightness detection device is in a leveling state. When the crankshaft bends downwards, is straight and bends upwards, the digital display dial indicator correspondingly displays a negative value, a positive value and a 0, wherein the positive sign and the negative sign represent the bending direction of the detected position on the crankshaft at the moment, and the numerical value represents the bending amount of the crankshaft.
Preferably, the number of the second sensing pins 300 is one, and the distance between the second sensing pin 300 and the two first sensing pins 200 is equal along the length direction of the base 100.
As shown in fig. 1, in the present embodiment, the second detection pin 300 is one and is disposed in the middle of the two first detection pins 200, and the measurement of the second detection pin 300 can obtain the bent-up, bent-down or straight state of the crankshaft.
Further, the base body 100 is provided with a through hole 110 penetrating the upper and lower surfaces thereof, the extending direction of the through hole 110 is perpendicular to the length direction of the base body 100, and the second sensing pin 300 is inserted into the through hole 110.
The elastic component is sleeved on the second detection pin 300, a bump 301 is arranged on the second detection pin 300, one end of the elastic component is connected with the bump 301 in an abutting mode, and the other end of the elastic component is connected with the base body 100.
Specifically, the base 100 may be a hollow rod body, the rod body includes an upper surface and a lower surface that are parallel to each other, and an extending direction of the through hole 110 is perpendicular to the lower surface of the base 100, so that the second detection pin 300 inserted into the through hole 110 is perpendicular to the lower surface of the base 100, and thus, the bending amount of the crankshaft at the position can be directly detected by using the second detection pin 300 quickly and conveniently without performing other conversions, which is simpler.
Preferably, two first sensing pins 200 are perpendicularly connected to the base 100.
The two first detection pins 200 are disposed in parallel, and the lower surfaces of the substrates 100 are perpendicular to each other, and the second detection pin 300 is also parallel to the first detection pins 200.
The two first detection pins 200 may not be perpendicular to the substrate 100, may be both inclined outward and inward, and may be arranged such that the distance between the heads of the two first detection pins 200 and the lower surface of the substrate 100 is the same.
Further, the straightness detecting means includes a first sleeve 310 and a second sleeve 320, the first sleeve 310 is connected to the upper surface of the base body 100, and the second sleeve 320 is connected to the lower surface of the base body 100.
The inner bores of the first sleeve 310 and the second sleeve 320 are aligned with the through-holes 110, respectively.
The second detection pin 300 is inserted into the first sleeve 310 and the second sleeve 320; one end of the second detection pin 300 remote from the head portion abuts on the probe 510 of the distance detection unit 500.
The elastic member includes a first elastic member and a second elastic member, one end of the first elastic member abuts against one side of the protrusion 301, and the other end abuts against one end of the first sleeve 310 facing the second sleeve 320.
One end of the second elastic member abuts the other side of the protrusion 301, and the other end abuts one end of the second sleeve 320 facing the first sleeve 310.
Specifically, the first sleeve 310 includes a first connection portion for connecting with the upper surface of the substrate 100, a first guide portion, and a first boss 313 connected to each other, the first sleeve 310 includes a first inner hole 311 passing through the first connection portion, the first guide portion, and the first boss 313, the first inner hole 311 being aligned with the through hole 110; the outer diameter of the first boss 313 corresponds to the inner diameter of the through-hole 110 of the base 100 so that the first boss 313 can be mounted inside the through-hole 110.
The second sleeve 320 includes a second connection portion for connecting with the lower surface of the base body 100 and a second boss 323 connected to each other, the second sleeve includes a second inner hole 321 penetrating the second connection portion and the second boss 323, and the second inner hole 321 is aligned with the through hole 110; the outer diameter of the second boss 323 corresponds to the inner diameter of the through-hole 110 of the base 100 so that the second boss 323 can be fitted inside the through-hole 110.
Be provided with a plurality of first mounting holes 312 on the first connecting portion, first mounting hole 312 sets up along circumference, be provided with a plurality of second mounting holes 322 that correspond with first mounting hole 312 on the second connecting portion, be provided with the base member 100 mounting hole that corresponds with first mounting hole 312 and second mounting hole 322 on the base member 100, link together first sleeve 310, second sleeve 320 and base member 100 after passing first mounting hole 312, base member 100 mounting hole and second mounting hole 322 respectively through bolt assembly 330.
Preferably, the elastic member is a spring.
The second detection pin 300 is inserted into the first inner hole 311, the through hole 110 and the second inner hole 321, the second detection pin 300 is provided with a convex block 301, the first elastic member and the second elastic member are respectively a first spring 410 and a second spring 420, one end of the first spring 410 is abutted against one side of the convex block 301, the other end of the first spring 410 is abutted against the end surface of the first boss 313 of the first sleeve 310, one end of the second spring 420 is abutted against the other side of the convex block 301, the other end of the second spring 420 is abutted against the end surface of the second boss 323 of the second sleeve 320, and the second detection pin 300 is kept at a set position under the action of the first spring 410 and the second spring 420.
Preferably, the ends of the two first sensing pins 200 connected to the base 100 are each provided with an external thread part, the external thread part penetrates through the upper and lower surfaces of the base 100, the external thread part is connected to two locking nuts 210, the two locking nuts 210 are disposed on both sides of the base 100 and abut against the upper and lower surfaces of the base 100, respectively, and the distance by which the heads of the first sensing pins 200 protrude outwards is adjustable by adjusting the locking nuts 210, so that the amplitude by which the second sensing pin 300 protrudes outwards beyond the connecting line between the heads of the two first sensing pins 200 is adjusted.
Specifically, when the amplitude of the second detection pin 300 which exceeds the connecting line between the heads of the two first detection pins 200 needs to be adjusted, only two locking nuts 210 arranged at the connecting end of the first detection pin 200 and the base body 100 need to be adjusted, and each part of the installation position of the second detection pin 300 does not need to be adjusted, which is beneficial to maintaining the accuracy of the linearity detection device, because if the second detection pin 300 is adjusted frequently, the accuracy between each part for installing the second detection pin 300 can be affected, thereby affecting the detection of the final crankshaft bending amount.
Example 2
As shown in fig. 8, the difference from embodiment 1 is that, furthermore, the number of the second detection pins 300 is plural, and the second detection pins are arranged on the base body 100 at intervals; the plurality of second sensing pins 300 are disposed between the two first sensing pins 200.
Specifically, the number of the second detection pins 300 may be multiple, and the second detection pins are all disposed on a connection line between two first detection pins 200, and one end of each second detection pin, which is far away from the head, is connected to one distance detection unit 500. The second detecting pins 300 can be used for detecting the bending amount of different positions on the crankshaft, and the worker can read the bending amount of the crankshaft according to the distance detecting unit 500 connected with the second detecting pins 300, so as to better judge the straightness of the crankshaft in the detecting section.
Example 3
As shown in fig. 9, 10, and 11, the difference from embodiment 1 is that a first through groove 120 and a second through groove 130 penetrating through the upper and lower surfaces of the base 100 are further provided, and the first through groove 120 and the second through groove 130 extend in the length direction of the base 100.
A first probe 200 slidably connected in the first through groove 120; another first sensing pin 200 is slidably coupled in the second through groove 130 so that the distance between the two first sensing pins 200 and the second sensing pin 300 is adjustable.
Specifically, the first through groove 120 and the second through groove 130 are arranged such that the position of the first detection pin 200 connected therein in the length direction of the base 100 is adjustable, so that the straightness detection device can adapt to crankshafts of different specifications, and the universality of the straightness detection device is improved.
In summary, the linearity detecting device provided by the present invention comprises a base 100, wherein two first detecting pins 200 and at least one second detecting pin 300 are disposed on the base 100, and the first detecting pins 200 and the second detecting pins 300 are disposed on a straight line; the heads of the first and second sensing pins 200 and 300 are extended outward; the second detection pin 300 is slidably connected with the base 100, so that the extent of outward extension of the head of the second detection pin 300 is adjustable; the straightness detection device further comprises elastic components which are equal in number and correspond to the second detection pins 300 one by one, one end of each elastic component is connected with the base body 100, the other end of each elastic component is connected with the corresponding second detection pin 300, and the elastic components are used for applying force to the second detection pin 300 in the direction towards the head of the second detection pin 300 so as to maintain the outward extending amplitude of the second detection pin 300 to exceed the connecting line between the heads of the two first detection pins 200, and the exceeding amplitude is a set distance; the second sensing pin 300 is provided with a scale or distance detecting unit 500, and the distance detecting unit 500 is used to detect the sliding distance of the second sensing pin 300 with respect to the base 100.
In actual use, the heads of the two first detection needles 200 of the straightness detection device are abutted to the outer surface of the crankshaft respectively, the heads of the second detection needle 300 are also abutted to the outer surface of the crankshaft, the elastic component is stressed to drive the second detection needle 300 to move in a direction away from the outer surface of the crankshaft, the sliding distance of the second detection needle 300 relative to the base body 100 can be detected through the scales or the distance detection unit 500 arranged on the second detection needle 300, so that the bending amount of the crankshaft at the second detection needle 300 is obtained, then, the straightness detection device is away from the crankshaft, and the second detection needle 300 is driven by the elastic component to automatically return to the initial position. Whole testing process is simple and convenient, and can accurately obtain the crooked volume of bent axle, and elastomeric element drives second detection needle 300 and auto-recovery to initial position, makes things convenient for the next detection of straightness accuracy.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A straightness detection device, comprising a base;
the substrate is provided with two first detection needles and at least one second detection needle, and the first detection needles and the second detection needles are positioned on the same straight line; the heads of the first detection pin and the second detection pin extend outwards;
the second detection needle is connected with the base body in a sliding mode, so that the outward extending amplitude of the head of the second detection needle is adjustable;
the straightness detection device also comprises elastic components which are equal in number and correspond to the second detection needles one by one, one end of each elastic component is connected with the base body, the other end of each elastic component is connected with the corresponding second detection needle, and the elastic components are used for applying force to the second detection needle in the direction of the head part of the second detection needle so as to maintain the outward extending amplitude of the second detection needle to exceed the connecting line between the two head parts of the first detection needle, and the exceeding amplitude is a set distance;
the second detection needle is provided with scales or a distance detection unit, and the distance detection unit is used for detecting the sliding distance of the second detection needle relative to the base body.
2. The straightness detection device according to claim 1, wherein the second detection pins are provided in plural numbers and are provided at intervals on the base;
the plurality of second detection pins are disposed between the two first detection pins.
3. The straightness detecting device according to claim 1, wherein the second detecting pins are one in number, and a distance between the second detecting pin and the two first detecting pins is equal along a length direction of the base.
4. The straightness detection device according to claim 3, wherein the base body is provided with a through hole penetrating through upper and lower surfaces thereof, an extending direction of the through hole is perpendicular to a length direction of the base body, and the second detection pin is inserted into the through hole;
the elastic component is sleeved on the second detection pin, a convex block is arranged on the second detection pin, one end of the elastic component is connected with the convex block in an abutting mode, and the other end of the elastic component is connected with the base body.
5. The straightness detection device according to claim 4, wherein the straightness detection device comprises a first sleeve and a second sleeve, the first sleeve is connected with the upper surface of the base body, and the second sleeve is connected with the lower surface of the base body;
the inner hole of the first sleeve and the inner hole of the second sleeve are respectively aligned with the through hole;
the second detection needle is inserted in the first sleeve and the second sleeve; one end of the second detection needle, which is far away from the head part of the second detection needle, is abutted against the measuring head of the distance detection unit;
the elastic component comprises a first elastic component and a second elastic component, one end of the first elastic component is abutted with one side of the bump, and the other end of the first elastic component is abutted with one end of the first sleeve facing the second sleeve;
one end of the second elastic component is abutted against the other side of the bump, and the other end of the second elastic component is abutted against one end, facing the first sleeve, of the second sleeve.
6. The linearity detecting device according to any one of claims 1 to 5, wherein said elastic member is a spring.
7. The straightness detection apparatus according to any one of claims 1 to 5, wherein the distance detection unit is a dial gauge.
8. The straightness detecting device according to claim 1, wherein the two first detecting pins are provided at an end thereof connected to the base with an external thread portion, the external thread portion penetrates through upper and lower surfaces of the base, the external thread portion is connected to two locking nuts, the two locking nuts are disposed at two sides of the base and abut against the upper and lower surfaces of the base, respectively, and the distance of the head portion of the first detecting pin extending outward is adjusted by adjusting the connecting position of the locking nut and the first detecting pin, so as to adjust the magnitude of the second detecting pin extending outward beyond the connecting line between the two head portions of the first detecting pin.
9. The straightness detection device according to claim 8, wherein the base body is provided with a first through groove and a second through groove penetrating upper and lower surfaces thereof, and the first through groove and the second through groove extend in a length direction of the base body;
one first detection needle is connected in the first through groove in a sliding mode; the other first detection needle is connected in the second through groove in a sliding mode, so that the distance between the two first detection needles and the second detection needle is adjustable.
10. The straightness detection apparatus according to claim 1, wherein both of the first detection pins are perpendicularly connected to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009886.7U CN211425321U (en) | 2019-11-18 | 2019-11-18 | Straightness detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009886.7U CN211425321U (en) | 2019-11-18 | 2019-11-18 | Straightness detection device |
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| CN211425321U true CN211425321U (en) | 2020-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880531A (en) * | 2021-01-13 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | Detection device |
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2019
- 2019-11-18 CN CN201922009886.7U patent/CN211425321U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880531A (en) * | 2021-01-13 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | Detection device |
| CN112880531B (en) * | 2021-01-13 | 2023-06-27 | 深圳市华星光电半导体显示技术有限公司 | Detection device |
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