CN217122972U - Elasticity clamping device and measurement system - Google Patents
Elasticity clamping device and measurement system Download PDFInfo
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- CN217122972U CN217122972U CN202221041108.1U CN202221041108U CN217122972U CN 217122972 U CN217122972 U CN 217122972U CN 202221041108 U CN202221041108 U CN 202221041108U CN 217122972 U CN217122972 U CN 217122972U
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Abstract
The utility model belongs to the field of clamping devices and discloses an elastic clamping device and a measuring system, wherein the elastic clamping device comprises a fixed frame, an upper floating plate, a lower floating plate, a guide rod, a first spring, a second spring, a limiting part and a clamping part, and the fixed frame comprises a bottom plate and a side plate; the first end of the upper floating plate is rotatably connected with the side plate; the first end of the lower floating plate is rotatably connected with the side plate; one end of the guide rod is connected with the bottom plate, and the other end of the guide rod penetrates through the upper floating plate and the lower floating plate; one end of the first spring is connected with the side plate, and the other end of the first spring is connected with the first end of the upper floating plate; the second spring is sleeved on the guide rod, the bottom of the second spring is abutted against the bottom plate, and the top of the second spring is abutted against the lower floating plate; the limiting piece is arranged on the guide rod and is abutted against the top surface of the upper floating plate; the clamping piece is respectively and rotatably connected with the second ends of the upper floating plate and the lower floating plate. The utility model discloses a holder can free floating, makes the measuring probe on the holder paste tight determinand with suitable elasticity to realize measuring accuracy.
Description
Technical Field
The utility model relates to a clamping device technical field indicates an elasticity clamping device and measurement system especially.
Background
In some contact measurement systems, it is desirable to maintain contact between the measurement head and the object to be measured, but the measurement head cannot be contacted too tightly to mechanically damage the object or measurement head. At present, the mode that uses comparatively much is that direct the installation has the spring of certain elasticity at the measuring head lower extreme, realizes the elastic force contact between measuring head and the determinand through the spring, however, because the measuring head lower extreme generally is connected with the wire of being connected with the host computer, can interfere the free compression of spring when the wire passes from the spring side, atress is uneven when leading to the spring compression, not only bends easily, influences the free floating of measuring head moreover.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an elasticity clamping device and measurement system not only can provide suitable elasticity, can not influence the free floating of spring moreover.
The utility model provides a technical scheme as follows:
in one aspect, there is provided a resilient clamping device comprising:
the fixing frame comprises a bottom plate and a side plate, and the side plate is arranged on the bottom plate;
the first end of the upper floating plate is rotatably connected with the side plate, the end part of the first end extends to one side of the side plate, and the second end of the upper floating plate is positioned on the other side of the side plate and above the bottom plate;
the lower floating plate is arranged below the upper floating plate, and the first end of the lower floating plate is rotatably connected with the side plate;
one end of the guide rod is connected with the bottom plate, and the other end of the guide rod penetrates through the upper floating plate and the lower floating plate;
the first spring is arranged on one side of the side plate, which is far away from the second end of the upper floating plate, one end of the first spring is connected with the side plate, and the other end of the first spring is connected with the first end of the upper floating plate;
the second spring is sleeved on the guide rod, the bottom of the second spring is abutted to the bottom plate, and the top of the second spring is abutted to the lower floating plate;
the limiting piece is arranged on the guide rod, is abutted against one side of the upper floating plate, which is far away from the lower floating plate, and is used for limiting the upper floating plate;
and the clamping piece is rotatably connected with the second end of the upper floating plate and the second end of the lower floating plate respectively.
In some embodiments, the clamping member includes a connecting portion rotatably connected to the second end of the upper floating plate and the second end of the lower floating plate, respectively, and a clamping portion disposed at a side of the connecting portion facing the side plate for clamping the measuring stick.
In some embodiments, the clamping portion is provided with a clamping hole and a slit, the clamping hole and the slit respectively penetrate through the clamping portion in the thickness direction of the clamping portion, the slit is communicated with the clamping hole, and the clamping hole can clamp the measuring rod when the size of the slit is reduced.
In some embodiments, the upper floating plate and the lower floating plate are respectively provided with an opening for avoiding the measuring rod, and the diameter of the opening is larger than the outer diameter of the measuring rod.
In some embodiments, the clamping portion is disposed perpendicular to the connecting portion; and/or;
the guide rod is arranged on one side of the opening deviating from the connecting part.
In some embodiments, the side wall of the guide rod is provided with an external thread, and the limiting member is in threaded connection with the guide rod.
In some embodiments, a waist-shaped hole for adjusting the installation position of the fixing frame is formed in the bottom plate, and the waist-shaped hole extends along the direction from the first end to the second end of the upper floating plate.
In some embodiments, a first groove is formed on the top of the side plate, and the upper floating plate and one end of the lower floating plate, which is rotatably connected with the side plate, are respectively arranged in the first groove;
the bottom of the clamping piece is provided with a second groove, and one ends of the upper floating plate and the lower floating plate which are rotatably connected with the clamping piece are respectively arranged in the second groove.
In some embodiments, further comprising a first rotating shaft and a second rotating shaft;
the upper floating plate and the lower floating plate are rotatably connected with the side plates through the first rotating shaft respectively; the upper floating plate and the lower floating plate are respectively rotatably connected with the clamping piece through the second rotating shaft;
and the distance between the first rotating shaft of the upper floating plate and the first rotating shaft of the lower floating plate is equal to the distance between the second rotating shaft of the upper floating plate and the second rotating shaft of the lower floating plate.
In another aspect, a measuring system is further provided, which includes the elastic clamping device according to any one of the above embodiments.
The technical effects of the utility model reside in that: through two springs and two floating plate structure centre gripping measuring stick, under the effect of spring force, drive upper floating plate and lower floating plate fluctuation from top to bottom, make the measuring stick paste tight determinand with suitable elasticity, with the security of realization measuring stick and protection measuring stick and determinand, and the lead wire of measuring stick lower extreme can not disturb first spring and second spring, avoided measuring stick lower extreme wire rod or lead wire to spring-supported structure's influence, make first spring and second spring freely stretch out and draw back, and then make the holder freely float from top to bottom, and the spring can not produce because of the wire influence and bend.
Drawings
The invention will be described in further detail with reference to the following drawings and embodiments:
FIG. 1 is a side view of a resilient clamping device according to an embodiment of the present application;
fig. 2 is a top view of a resilient clamping device according to an embodiment of the present application.
The reference numbers illustrate:
10. a fixed mount; 11. a base plate; 111. a waist-shaped hole; 12. a side plate; 20. an upper floating plate; 30. a lower floating plate; 40. a guide bar; 50. a first spring; 60. a second spring; 70. a limiting member; 80. a clamping member; 81. a connecting portion; 82. a clamping portion; 821. slotting; 90. a measuring rod; 100. a first rotating shaft; 110. a second rotating shaft.
Detailed Description
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. Moreover, in the interest of brevity and understanding, only one of the components having the same structure or function is illustrated schematically or designated in some of the drawings. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, 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 in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In one embodiment of the present application, as shown in fig. 1 and 2, an elastic clamping device includes a fixed frame 10, an upper floating plate 20, a lower floating plate 30, a guide rod 40, a first spring 50, a second spring 60, a limiting member 70, and a clamping member 80, the fixed frame 10 includes a bottom plate 11 and a side plate 12, the side plate 12 is disposed on the bottom plate 11, and the side plate 12 may be integrally formed with the bottom plate 11 or assembled after being separately formed. In this embodiment, the side plate 12 is disposed at the end of the bottom plate 11 to form an L-shape, and of course, the side plate 12 may also be disposed at the middle of the bottom plate 11 or between the end and the middle according to actual requirements.
The first end of the upper floating plate 20 is rotatably connected with the side plate 12, the end part of the first end of the upper floating plate 20 extends to one side of the side plate 12, and the second end of the upper floating plate 20 is positioned at the other side of the side plate 12 and above the bottom plate 11; that is, when the fastening bracket 10 is L-shaped, the first end of the upper floating plate 20 is located on the side of the side plate 12 away from the bottom plate 11, the second end of the upper floating plate 20 is located on the other side of the side plate 12, and the connection point between the upper floating plate 20 and the side plate 12 is located between the first end and the second end of the upper floating plate 20. The lower floating plate 30 is disposed below the upper floating plate 20, and the first end thereof is rotatably connected to the side plate 12, and the lower floating plate 30 is located above the bottom plate 11.
One end of the guide rod 40 is connected with the bottom plate 11, and the other end of the guide rod 40 penetrates through the upper floating plate 20 and the lower floating plate 30; the diameter of the through hole of the upper floating plate 20 and the lower floating plate 30 through which the guide rod 40 passes is larger than the outer diameter of the guide rod 40, so that the guide rod 40 can freely pass through the upper floating plate 20 and the lower floating plate 30, and the upper floating plate 20 and the lower floating plate 30 can freely move up and down relative to the guide rod 40.
The first spring 50 is arranged on one side of the side plate 12, which is far away from the second end of the upper floating plate 20, one end of the first spring 50 is connected with the side plate 12, and the other end of the first spring 50 is connected with the first end of the upper floating plate 20; the first spring 50 pulls the first end of the upper floating plate 20 to form a pulling force on the upper floating plate 20.
The second spring 60 is sleeved on the guide rod 40, the bottom of the second spring 60 is abutted against the bottom plate 11, and the top of the second spring 60 is abutted against the lower floating plate 30; the second spring 60 is in a compressed state, and the second spring 60 abuts against the lower floating plate 30, and can provide an upward supporting force for the lower floating plate 30.
The limiting piece 70 is arranged on the guide rod 40 and is abutted against one side of the upper floating plate 20, which is far away from the lower floating plate 30, so as to limit the upper floating plate 20; the limiting member 70 is disposed on the guide bar 40 to limit the upward movement of the upper floating plate 20, thereby preventing the second end of the upper floating plate 20 from tilting upward excessively under the pulling force of the first spring 50.
The clamping member 80 is rotatably connected to the second end of the upper floating plate 20 and the second end of the lower floating plate 30, respectively; the clamping member 80 is used for clamping the measuring rod 90, the upper floating plate 20 and the lower floating plate 30 are respectively rotatably connected with the side plate 12 and the clamping member 80, so that the clamping member 80 can float up and down under the action of the upper floating plate 20, the lower floating plate 30, the first spring 50 and the second spring 60, and the measuring rod 90 can be abutted against and attached to an object to be measured.
In this embodiment, the positions of the first spring 50 and the second spring 60 and the magnitudes of the elastic forces of the first spring 50 and the second spring 60 can be set according to practical applications, and the adjustment can be performed by comprehensively considering the force and the moment arm. The position of the upper floating plate 20 and the lower floating plate 30 can be limited by the limiting part 70 on the guide rod 40, during actual use, the position of the measuring rod 90 on the clamping part 80 is firstly adjusted up and down, after the height of the measuring rod 90 is approximately proper (at the moment, the head position of the measuring rod 90 is slightly higher than the height of the bottom of the object to be measured), the clamping part 80 is pressed down by hand, under the action of the tensile force of the first spring 50 and the supporting force of the second spring 60, the measuring rod 90 can be tightly attached to the object to be measured by proper elastic force, the measuring rod 90 cannot be damaged, and inaccurate measured data caused by indentation on the object to be measured due to too large pressure can be avoided.
According to the embodiment, the measuring rod 90 is clamped by the double-spring and double-floating-plate structure, under the action of spring elasticity, the upper floating plate 20 and the lower floating plate 30 are driven to float up and down, so that the measuring rod 90 is tightly attached to an object to be measured by proper elasticity, and a lead at the lower end of the measuring rod 90 cannot interfere with the first spring 50 and the second spring 60, so that the influence of a wire rod or a lead at the lower end of the measuring rod 90 on a spring supporting structure is avoided.
In some embodiments, as shown in fig. 1, the clamping member 80 includes a connection portion 81 and a clamping portion 82, the connection portion 81 is rotatably connected to the second end of the upper floating plate 20 and the second end of the lower floating plate 30, respectively, and the clamping portion 82 is disposed at a side of the connection portion 81 facing the side plate 12 for clamping the measuring rod 90.
The clamping part 82 and the connecting part 81 can be connected through bolts after being formed in a split mode, so that the forming process of the clamping piece 80 is simplified; of course, the clamping portion 82 and the connecting portion 81 may be integrally formed when the process conditions are satisfied. The clamping portion 82 can be approximately perpendicular to the connecting portion 81, the clamping portion 82 is horizontally arranged and used for clamping the measuring rod 90, the connecting portion 81 is vertically arranged and used for being connected with the upper floating plate 20 and the lower floating plate 30, and when the upper floating plate 20 and the lower floating plate 30 drive the connecting portion 81 to float vertically, the connecting portion 81 drives the clamping portion 82 and the measuring rod 90 to float vertically and accordingly provides appropriate elastic force for the measuring rod 90, and the head of the measuring rod 90 is made to be attached to a to-be-measured object.
As shown in fig. 2, the clamping portion 82 is provided with a clamping hole and a slit 821, the clamping hole and the slit 821 respectively penetrate through the clamping portion 82 in the thickness direction of the clamping portion 82, the slit 821 communicates with the clamping hole, and the clamping hole can clamp the measuring rod 90 when the size of the slit 821 is reduced.
The measuring rod 90 is installed in the clamping hole, the measuring rod 90 can be conveniently installed in the clamping hole by arranging the slit 821 communicated with the clamping hole, and after the measuring rod 90 is installed, the slit 821 is locked and the size of the slit 821 is reduced so that the measuring rod 90 is fixed in the clamping hole. Through holes may be formed at both sides of the slit 821, and bolts may be inserted into the through holes to reduce the gap of the slit 821 by locking the bolts, so as to lock the measuring rod 90. When the installation height of the measuring rod 90 needs to be adjusted, the bolt on the slit 821 is loosened to enable the measuring rod 90 to be freely adjusted, and the bolt on the slit 821 is locked to fix the measuring rod 90 after the adjustment is completed.
When the measuring rod 90 is adjusted up and down, in order to enable the measuring rod 90 to smoothly pass through the upper floating plate 20 and the lower floating plate 30, the upper floating plate 20 and the lower floating plate 30 are respectively provided with an opening for avoiding the measuring rod 90, and the aperture of the opening is larger than the outer diameter of the measuring rod 90, so that the measuring rod 90 can freely move up and down in the opening. Preferably, the guide rod 40 is arranged on the side of the opening facing away from the connecting portion 81, so that the elastic clamping device is more compact and the volume of the elastic clamping device is reduced.
In some embodiments, the side wall of the guide rod 40 is provided with an external thread, the external thread extends along the height direction of the guide rod 40, and the stopper 70 is in threaded connection with the guide rod 40. The limiting member 70 is in threaded connection with the guide rod 40, and the height of the limiting member 70 on the guide rod 40 can be adjusted as required to adjust the heights of the upper floating plate 20 and the lower floating plate 30. As a variation, the position-limiting member 70 may also be connected to the guide rod 40 by a snap, a groove, and a protrusion, for example, a plurality of snaps are arranged in the height direction of the guide rod 40, and the position-limiting member 70 is fixedly connected to the snaps at different positions, so as to adjust the installation height of the position-limiting member 70.
In some embodiments, as shown in fig. 2, the bottom plate 11 is provided with a waist-shaped hole 111 for adjusting the installation position of the fixing frame 10, and the waist-shaped hole 111 is extended along the direction from the first end to the second end of the upper floating plate 20.
In practical application, the elastic clamping device is installed on the measuring system through the waist-shaped hole 111 on the bottom plate 11, and the installation position of the elastic clamping device on the measuring system can be adjusted through adjusting the position of the bolt in the waist-shaped hole 111, so that the elastic clamping device is installed at a proper position, and the application range of the elastic clamping device is expanded.
In order to improve the installation stability of the elastic clamping device, more than two waist-shaped holes 111 can be arranged on the bottom plate 11 at intervals, and the elastic clamping device is fixedly installed on the measuring system through the plurality of waist-shaped holes 111. The waist-shaped hole 111 may extend in a direction from the first end to the second end of the upper floating plate 20 (i.e., a length direction of the upper floating plate 20), and may also extend in a width direction of the upper floating plate 20, so as to satisfy various installation requirements.
In some embodiments, the top of the side plate 12 is provided with a first groove, and the ends of the upper floating plate 20 and the lower floating plate 30 rotatably connected to the side plate 12 are respectively disposed in the first groove; the bottom of the clamping member 80 is provided with a second groove, and one ends of the upper floating plate 20 and the lower floating plate 30, which are rotatably connected with the clamping member 80, are respectively arranged in the second groove. When the clamping member 80 comprises the connecting portion 81 and the clamping portion 82, the second groove is located at the bottom of the connecting portion 81, and the clamping portion 82 is disposed at the top of the connecting portion 81.
As shown in fig. 1, the upper floating plate 20 and the lower floating plate 30 are rotatably coupled to the side plates 12 by first rotating shafts 100, respectively; the upper floating plate 20 and the lower floating plate 30 are rotatably connected to the connection part 81 of the clamping member 80 through the second rotation shaft 110, respectively; the distance from the first rotating shaft 100 of the upper floating plate 20 to the first rotating shaft 100 of the lower floating plate 30 is equal to the distance from the second rotating shaft 110 of the upper floating plate 20 to the second rotating shaft 110 of the lower floating plate 30. The upper floating plate 20 and the lower floating plate 30 are rotatably coupled to the side plates 12 and the coupling portions 81 of the clamping members 80 through rotation shafts, respectively, the first rotation shaft 100 and the second rotation shaft 110 both extend in the width direction of the upper floating plate 20, the upper floating plate 20 and the lower floating plate 30 are approximately parallel, and the upper floating plate 20 and the lower floating plate 30 rotate together clockwise or counterclockwise when the clamping members 80 float up and down.
The utility model discloses still provide a measurement system's embodiment, including the elasticity clamping device of any above-mentioned embodiment, elasticity clamping device's structure chart is shown in fig. 1 and fig. 2. The elastic clamping device can be applied to various contact type measuring devices, for example, the elastic clamping device is applied to a measuring device for detecting the wall thickness of a pipe by using a Hall detection technology, the measuring rod 90 of the Hall detector is clamped by the elastic clamping device, the measuring rod 90 can float freely up and down, so that the measuring rod 90 is attached to the pipe to be measured with proper elasticity, the measuring accuracy and the safety of the measuring rod 90 and an object to be measured are realized, and meanwhile, the measured data is more accurate.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A resilient clamping device, comprising:
the fixing frame comprises a bottom plate and a side plate, and the side plate is arranged on the bottom plate;
the first end of the upper floating plate is rotatably connected with the side plate, the end part of the first end extends to one side of the side plate, and the second end of the upper floating plate is positioned on the other side of the side plate and above the bottom plate;
the lower floating plate is arranged below the upper floating plate, and the first end of the lower floating plate is rotatably connected with the side plate;
one end of the guide rod is connected with the bottom plate, and the other end of the guide rod penetrates through the upper floating plate and the lower floating plate;
the first spring is arranged on one side of the side plate, which is far away from the second end of the upper floating plate, one end of the first spring is connected with the side plate, and the other end of the first spring is connected with the first end of the upper floating plate;
the second spring is sleeved on the guide rod, the bottom of the second spring is abutted to the bottom plate, and the top of the second spring is abutted to the lower floating plate;
the limiting piece is arranged on the guide rod, is abutted against one side, departing from the lower floating plate, of the upper floating plate and is used for limiting the upper floating plate;
and the clamping piece is rotatably connected with the second end of the upper floating plate and the second end of the lower floating plate respectively.
2. A resilient clamping device according to claim 1,
the clamping piece comprises a connecting portion and a clamping portion, the connecting portion is rotatably connected with the second end of the upper floating plate and the second end of the lower floating plate respectively, and the clamping portion is arranged on one side, facing the side plate, of the connecting portion and used for clamping the measuring rod.
3. A resilient clamping device according to claim 2,
the clamping part is provided with a clamping hole and a slot, the clamping hole and the slot respectively penetrate through the clamping part along the thickness direction of the clamping part, the slot is communicated with the clamping hole, and the clamping hole can clamp the measuring rod when the size of the slot is reduced.
4. A resilient clamping device according to claim 2,
the upper floating plate and the lower floating plate are respectively provided with an opening for avoiding the measuring rod, and the aperture of the opening is larger than the outer diameter of the measuring rod.
5. A resilient clamping device according to claim 4,
the clamping part is perpendicular to the connecting part; and/or;
the guide rod is arranged on one side of the opening deviating from the connecting part.
6. A resilient clamping device according to claim 1,
the lateral wall of guide arm is equipped with the external screw thread, the locating part with guide arm threaded connection.
7. A resilient clamping device according to claim 1,
the bottom plate is provided with a waist-shaped hole for adjusting the mounting position of the fixing frame, and the waist-shaped hole extends along the direction from the first end to the second end of the upper floating plate.
8. A resilient clamping device according to claim 1,
the top of the side plate is provided with a first groove, and one ends of the upper floating plate and the lower floating plate which are rotatably connected with the side plate are respectively arranged in the first groove;
the bottom of the clamping piece is provided with a second groove, and one ends of the upper floating plate and the lower floating plate which are rotatably connected with the clamping piece are respectively arranged in the second groove.
9. A resilient clamping device according to claim 8, further comprising a first rotatable shaft and a second rotatable shaft;
the upper floating plate and the lower floating plate are rotatably connected with the side plates through the first rotating shaft respectively; the upper floating plate and the lower floating plate are respectively rotatably connected with the clamping piece through the second rotating shaft;
and the distance from the first rotating shaft of the upper floating plate to the first rotating shaft of the lower floating plate is equal to the distance from the second rotating shaft of the upper floating plate to the second rotating shaft of the lower floating plate.
10. A measuring system comprising a resilient clamping device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221041108.1U CN217122972U (en) | 2022-04-24 | 2022-04-24 | Elasticity clamping device and measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221041108.1U CN217122972U (en) | 2022-04-24 | 2022-04-24 | Elasticity clamping device and measurement system |
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| Publication Number | Publication Date |
|---|---|
| CN217122972U true CN217122972U (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221041108.1U Active CN217122972U (en) | 2022-04-24 | 2022-04-24 | Elasticity clamping device and measurement system |
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| Country | Link |
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| CN (1) | CN217122972U (en) |
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- 2022-04-24 CN CN202221041108.1U patent/CN217122972U/en active Active
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