CN213274099U - Displacement sensor's core mechanical device and displacement sensor - Google Patents
Displacement sensor's core mechanical device and displacement sensor Download PDFInfo
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- CN213274099U CN213274099U CN202022432848.5U CN202022432848U CN213274099U CN 213274099 U CN213274099 U CN 213274099U CN 202022432848 U CN202022432848 U CN 202022432848U CN 213274099 U CN213274099 U CN 213274099U
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- hole
- guide rod
- limiting groove
- displacement sensor
- frame body
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Abstract
The utility model discloses a displacement sensor's core mechanical device and displacement sensor, include framework, guide arm, spacer pin, reset piece and capacitive grating displacement measurement module. The frame body is provided with a through hole, the frame body is provided with a first side and a second side opposite to the first side, a first limiting groove is formed in the first side, a second limiting groove corresponding to the first limiting groove is formed in the position, corresponding to the second side, of the second side, the first limiting groove and the second limiting groove are communicated with the through hole, and the length direction of the first limiting groove and the length direction of the second limiting groove are the same as the axial direction of the through hole. The guide rod penetrates through and extends out of the through hole, the guide rod is connected with at least one through hole in the guide rod of the through hole in a sliding mode along the axial direction of the through hole, a limiting pin penetrates through one through hole, the two ends of the limiting pin extend out of the through hole and penetrate through the first limiting groove and the second limiting groove respectively, and one end of the guide rod is connected with a measuring head. The reset piece is connected with the frame body and the guide rod and used for resetting the guide rod. And the capacitance grid displacement measuring module is used for measuring the displacement of the guide rod relative to the frame body and outputting the displacement.
Description
Technical Field
The utility model belongs to the displacement sensor field especially relates to a displacement sensor's core mechanical device and displacement sensor.
Background
The displacement sensor is also called as a linear sensor, and is a metal-induced linear device, and the sensor is used for converting various measured physical quantities into electric quantities.
The core mechanical device of the existing displacement sensor is characterized in that the limiting range of the device is controlled by a limiting groove arranged on a frame body and a limiting block arranged on a guide rod, and the limiting groove and the limiting block are connected in a welding mode.
Spacing interval is connected through the welded mode, and processing is troublesome, and the precision is not high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a displacement sensor's core mechanical device and displacement sensor to solve among the prior art restriction interval because lead to the trouble and the poor problem of precision of processing through welded connection.
The technical scheme of the utility model is that:
a core mechanism of a displacement sensor comprising:
the frame body is provided with a through hole, the frame body is provided with a first side and a second side opposite to the first side, the first side is provided with a first limiting groove, a second limiting groove corresponding to the first limiting groove is arranged at a position corresponding to the second side, the first limiting groove and the second limiting groove are communicated with the through hole, and the length direction of the first limiting groove and the length direction of the second limiting groove are the same as the axial direction of the through hole;
the guide rod penetrates through and extends out of the through hole, the guide rod is connected to the through hole in a sliding mode along the axial direction of the through hole, at least one through hole is formed in the guide rod, a limiting pin penetrates through one through hole, two ends of the limiting pin extend out of the through hole and penetrate through the first limiting groove and the second limiting groove respectively, and one end of the guide rod is connected with a measuring head;
the reset piece is connected with the frame body and the guide rod and used for resetting the guide rod;
the capacitive grating displacement measurement module comprises a transmitting circuit and a receiving circuit which are electrically connected with each other, the transmitting circuit is installed on the frame body, the receiving circuit is installed on the guide rod, and the transmitting circuit and the receiving circuit are matched to measure the displacement of the guide rod relative to the frame body and output the displacement.
Preferably, an embodiment of the present invention provides a core mechanical device of a displacement sensor, the reset member is a reset spring, the reset spring is sleeved on the guide rod, and two ends of the reset spring are respectively connected to the frame body and the limit pin.
Preferably, an embodiment of the present invention provides a core mechanical device of a displacement sensor, wherein the frame body is provided with a first installation guide and a second installation guide, which are respectively connected to two ends of the through hole, and the first installation guide and the second installation guide are respectively sleeved and slidably connected to the guide rod.
Preferably, an embodiment of the present invention provides a core mechanism of a displacement sensor, wherein the guide rod is connected to the measuring head through a standard screw.
Preferably, the embodiment of the utility model provides a displacement sensor's core mechanical device, including two sets the capacitance grid displacement measurement module, two sets the sharing of capacitance grid displacement measurement module is same transmitting circuit, two sets the capacitance grid displacement measurement module receiving circuit install respectively in guide arm ascending both sides in week and be located same axial position department.
Preferably, an embodiment of the present invention provides a core mechanical device of a displacement sensor, wherein the guide rod is provided with one through hole, and the limit pin is disposed in the through hole.
A displacement sensor comprising a core mechanism of a displacement sensor as claimed in any preceding claim.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the utility model provides a displacement sensor's core mechanical device, first spacing groove, second spacing groove and spacer pin are constituteed the restriction interval, and first spacing groove and second spacing groove directly set up in the framework, can directly form when processing the framework, need not to weld in the framework again, and thereby the spacer pin is worn to establish the through-hole and is connected on the guide arm, and the through-hole can directly form when processing the guide arm, consequently, the utility model provides a location interval processing simple to operate, and the precision is higher, has solved among the prior art restriction interval because lead to the trouble and poor problem of precision of processing through welded connection.
(2) An embodiment of the utility model provides a displacement sensor's core mechanical device, reset spring cover are established on the guide arm, and this kind of well formula reset spring has changed the structure of traditional side extension spring for displacement sensor's core mechanical device atress is even, great promotion the stability of operation.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
Fig. 1 is a schematic partial structural diagram of a core mechanism of a displacement sensor according to the present invention;
fig. 2 is a schematic structural diagram of a core mechanism of a displacement sensor according to the present invention;
fig. 3 is another view structure diagram of the core mechanism of the displacement sensor according to the present invention;
fig. 4 is a schematic view of a cross-sectional structure a-a of a core mechanism of a displacement sensor according to the present invention;
fig. 5 is a schematic structural diagram of another displacement sensor core mechanism according to the present invention.
Description of reference numerals:
1: a frame body; 2: a guide bar; 3: a measuring head; 4: a reset spring; 5: a first mounting guide; 6: a second mounting guide; 7: a launch mounting plate; 8: receiving a mounting plate; 9: a spacing pin; 10: the device is externally connected with a mounting hole.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
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. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Example 1
Referring to fig. 1 to 5, the present embodiment provides a core mechanical device of a displacement sensor, which includes a frame 1, a guide rod 2, a limit pin 9, a reset piece, and a capacitive grating displacement measurement module. The frame body 1 is provided with a through hole, the frame body 1 is provided with a first side and a second side opposite to the first side, a first limiting groove is formed in the first side, a second limiting groove corresponding to the first limiting groove is formed in the position, corresponding to the second side, of the second side, the first limiting groove and the second limiting groove are communicated with the through hole, and the length direction of the first limiting groove and the length direction of the second limiting groove are the same as the axial direction of the through hole. The guide rod 2 penetrates through and extends out of the through hole, the guide rod 2 is connected with at least one through hole in the guide rod 2 of the through hole in a sliding mode along the axial direction of the through hole, a limiting pin 9 penetrates through one through hole, the two ends of the limiting pin 9 extend out of the through hole and penetrate through a first limiting groove and a second limiting groove respectively, and one end of the guide rod 2 is connected with the measuring head 3. The reset piece is connected with the frame body 1 and the guide rod 2 and used for resetting the guide rod 2.
The capacitive grating displacement measurement module comprises a transmitting circuit and a receiving circuit which are electrically connected with each other, the transmitting circuit is installed on the frame body 1, the receiving circuit is installed on the guide rod 2, and the transmitting circuit and the receiving circuit are matched to measure the displacement of the guide rod 2 relative to the frame body 1 and output the displacement.
In this embodiment, the first limiting groove, the second limiting groove and the limiting pin 9 form a limiting section, the first limiting groove and the second limiting groove are directly arranged on the frame body 1, and can be directly formed in the process of processing the frame body 1 without welding the frame body 1, the limiting pin 9 penetrates through a through hole to be connected to the guide rod 2, and the through hole can be directly formed in the process of processing the guide rod 2, so that the positioning section is convenient to process and install, and the precision is high.
The structure of the present embodiment will now be explained.
The two ends of the through hole in the frame body 1 are respectively connected with a first installation guide part 5 and a second installation guide part 6, and the first installation guide part 5 and the second installation guide part 6 are respectively sleeved and slidably connected with the guide rod 2. Specifically, the first and second mounting guides 5 and 6 are mounted on the frame in an interference manner and ensure smooth operation of the guide bar 2 by mechanically correcting the concentricity thereof. In this embodiment, the gauge head 3 is mounted on the end of the guide bar 2 adjacent to the second mounting guide 6. An external device mounting hole 10 may be formed in the frame 1 or the first mounting guide 5 or the second mounting guide 6 for mounting and positioning the present embodiment.
A plurality of through holes can be formed in the guide rod 2 along the length direction of the guide rod 2, and the limiting pin 9 penetrates through one of the through holes. The arrangement of the plurality of through holes can adjust the length of the guide rod 2 extending out of the second mounting guide 6 so as to adapt to different application scenes. In this embodiment, only one through hole is provided in the guide bar 2, and the stopper pin 9 is inserted into the through hole.
Two ends of the limiting pin 9 move in the limited area of the first limiting groove and the second limiting groove respectively, and the limited area is the device measuring range.
The connection mode of the measuring head 3 and the guide rod 2 can be selected in many ways, and is not limited here. In this embodiment, the measuring head 3 is connected to the guide rod 2 by means of a standard thread, for example an M2.5 thread. Adopt standard screw thread, can a plurality of gauge heads 3 of guide arm 2 matching, through setting up different length with each gauge head 3, can lengthen or subtract the weak point to guide arm 2 through the mode adjustment of changing gauge head 3 to adapt to different use application scenarios.
In this embodiment, the capacitive-gate displacement measurement module may be included, two sets of capacitive-gate displacement measurement modules share the same transmitting circuit, and two receiving circuits correspond to the two sets of capacitive-gate displacement measurement modules respectively. The two receiving circuits are respectively installed on two sides of the guide rod 2 in the circumferential direction and are located at the same axial position of the guide rod 2. And comparing the data measured by the two sets of capacitive grating displacement measurement modules to obtain absolute displacement data. Specifically, the transmitting circuit board may be mounted on the transmitting mounting plate 7, the receiving circuit board may be mounted on the receiving mounting plate 8, the transmitting mounting plate 7 may be mounted on the frame body 1 by a fastener, a mounting groove may be provided on the guide bar 2, and the receiving mounting plate 8 may be mounted in the mounting groove; if the transmitting circuit board interferes with the installation and movement of the limit pin 9 at the installation position, a clearance hole can be formed in the transmitting circuit board and used for preventing interference on the limit pin 9.
In this embodiment, the reset member is a reset spring 4, the reset spring 4 is sleeved on the guide rod 2, and two ends of the reset spring are respectively connected with the frame body 1 and the limit pin 9. Specifically, in the present embodiment, both ends of the return spring 4 are respectively in contact connection with the first mounting guide 5 and the stopper pin 9 on the frame body 1, and therefore, the guide bar 2 in the non-operating state of the present embodiment is in the pre-ejection state. In other embodiments, the return spring 4 may be disposed between the limit pin 9 and the second mounting guide 6, or the receiving circuit board may be disposed between the limit pin 9 and the second mounting guide 6, and both ends of the return spring 4 are connected to the second mounting guide 6 and the limit pin 9, respectively, as shown in fig. 5, and the guide rod 2 is in a pre-retracted state when not in operation.
The reset spring 4 is sleeved on the guide rod 2, and the central reset spring 4 changes the structure of a traditional side tension spring, so that the stress of a core mechanical device of the displacement sensor is uniform, and the operation stability is greatly improved.
Example 2
The present embodiment provides a displacement sensor, which uses the core mechanical device of the displacement sensor in embodiment 1, and therefore, the displacement sensor in this embodiment has stable operation, convenient processing, and high precision.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. A core mechanism for a displacement sensor, comprising:
the frame body is provided with a through hole, the frame body is provided with a first side and a second side opposite to the first side, the first side is provided with a first limiting groove, a second limiting groove corresponding to the first limiting groove is arranged at a position corresponding to the second side, the first limiting groove and the second limiting groove are communicated with the through hole, and the length direction of the first limiting groove and the length direction of the second limiting groove are the same as the axial direction of the through hole;
the guide rod penetrates through and extends out of the through hole, the guide rod is connected to the through hole in a sliding mode along the axial direction of the through hole, at least one through hole is formed in the guide rod, a limiting pin penetrates through one through hole, two ends of the limiting pin extend out of the through hole and penetrate through the first limiting groove and the second limiting groove respectively, and one end of the guide rod is connected with a measuring head;
the reset piece is connected with the frame body and the guide rod and used for resetting the guide rod;
the capacitive grating displacement measurement module comprises a transmitting circuit and a receiving circuit which are electrically connected with each other, the transmitting circuit is installed on the frame body, the receiving circuit is installed on the guide rod, and the transmitting circuit and the receiving circuit are matched to measure the displacement of the guide rod relative to the frame body and output the displacement.
2. The core mechanical device of the displacement sensor according to claim 1, wherein the reset member is a reset spring, the reset spring is sleeved on the guide rod, and two ends of the reset spring are respectively connected with the frame body and the limit pin.
3. The core mechanism device of the displacement sensor according to claim 1, wherein a first mounting guide and a second mounting guide are respectively connected to two ends of the through hole of the frame body, and the first mounting guide and the second mounting guide are respectively sleeved and slidably connected to the guide rod.
4. The core mechanism of the displacement sensor according to claim 1, wherein the guide rod is connected with the measuring head through a thread.
5. The core mechanical device of the displacement sensor according to claim 1, comprising two sets of the capacitive grating displacement measurement modules, wherein the two sets of the capacitive grating displacement measurement modules share the same transmitting circuit, and the receiving circuits of the two sets of the capacitive grating displacement measurement modules are respectively installed on two sides of the guide rod in the circumferential direction and are located at the same axial position.
6. The core mechanism device of claim 1, wherein the guide rod is provided with one of the through holes, and the limit pin is disposed in the through hole.
7. A displacement sensor, characterized in that it comprises the core mechanism of a displacement sensor according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022432848.5U CN213274099U (en) | 2020-10-28 | 2020-10-28 | Displacement sensor's core mechanical device and displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022432848.5U CN213274099U (en) | 2020-10-28 | 2020-10-28 | Displacement sensor's core mechanical device and displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213274099U true CN213274099U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022432848.5U Active CN213274099U (en) | 2020-10-28 | 2020-10-28 | Displacement sensor's core mechanical device and displacement sensor |
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| CN (1) | CN213274099U (en) |
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- 2020-10-28 CN CN202022432848.5U patent/CN213274099U/en active Active
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