CN215572705U - Connecting column for precision optical measuring device and adaptive measuring device thereof - Google Patents
Connecting column for precision optical measuring device and adaptive measuring device thereof Download PDFInfo
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- CN215572705U CN215572705U CN202121701829.6U CN202121701829U CN215572705U CN 215572705 U CN215572705 U CN 215572705U CN 202121701829 U CN202121701829 U CN 202121701829U CN 215572705 U CN215572705 U CN 215572705U
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Abstract
The utility model relates to a connecting column for a precise optical measuring device and a measuring device adapted with the connecting column, wherein the precise optical measuring device comprises a shell and a functional shell, the connecting column is used for connecting the shell and the functional shell, and comprises: the connecting column is provided with counter bores which are used for accommodating the first connecting unit and the second connecting unit respectively at two axial ends, the first connecting unit with internal threads is integrally arranged in one counter bore in the axial direction of the flexible unit, one part of the second connecting unit with external threads on the outer wall is arranged in the other counter bore in the axial direction of the flexible unit, and the shafts of the first connecting unit, the second connecting unit and the flexible unit are overlapped. When the shell is installed, the external screw is matched with the connecting column of the utility model to fasten the shell and the functional shell, and the stress generated when the shell is fastened is counteracted by the flexible deformation of the connecting column, thereby reducing the influence of the shell stress on the functional shell.
Description
Technical Field
The utility model relates to a connecting column for a precision optical measuring device and a measuring device matched with the connecting column.
Background
In recent years, precision optical measuring devices such as laser trackers and laser absolute distance meters have received wide attention from the measurement industry, and have gradually become the most popular measuring tool in the measurement industry. However, the measurement accuracy is easily affected by various factors such as the use environment, the device structure, and the operation method, and the measurement accuracy is reduced. Therefore, in order to ensure the measurement accuracy, the above factors are also considered and optimized in combination with the factors affecting the measurement accuracy, so as to obtain a good measurement result as expected. The measurement accuracy of the precision optical measurement device is determined by the performance of the precision optical measurement device, and the ideal state of the precision optical measurement device is that the axes are orthogonal or parallel to each other, but the precision optical measurement device generates errors due to the change of the external environment and during the design or assembly, and the relationship between the optical path of the precision optical measurement device and the axes arranged in the functional shell is often changed (usually, the light beam is drifted when the first shell and the second shell are locked).
In the prior art, there is a solid-state laser housing (CN205335610U) with a stress transfer groove, comprising a housing, a cover plate, a gasket and a bolt, wherein the housing comprises a side wall and a bottom plate, the bottom plate is an optical mounting surface, the stress transfer groove is machined on the outer surface or/and the inner surface of the side wall of the housing by using a traditional machining means, and the stress deformation is transferred to the side wall with smaller influence on the system stability, so that the stress influence in the installation process of the solid-state laser can be reduced. However, in this technique, a stress groove needs to be formed on the side wall of the housing, which is easy to reduce the stability of the housing, and cannot ensure that the influence of the housing stress on the functional housing of the precision optical measurement device is effectively reduced.
Disclosure of Invention
The present invention has been made in view of the above-described conventional circumstances, and an object thereof is to provide a functional housing of a precision optical measuring apparatus, which effectively reduces the influence of a housing stress.
A first aspect of the present invention provides a connection column for a precision optical measurement apparatus, the precision optical measurement apparatus including a housing having a first housing, a second housing, and a functional housing disposed between the first housing and the second housing, the first housing and the second housing having counter bores matching with the connection column, the functional housing having screw holes matching with the connection column, the connection column being used to connect the first housing and the functional housing and to connect the second housing and the functional housing, characterized in that: the spliced pole includes first linkage element, second linkage element and connects first linkage element with the flexible unit of second linkage element, the flexible unit is cylindricly and the shore hardness of flexible unit is less than the shore hardness of shell, the spliced pole has at axial direction's both ends and holds respectively first linkage element with the counter bore of second linkage element, first linkage element is the cylinder that has the through-hole, the inner wall of first linkage element has the internal thread, first linkage element sets up in a counter bore on the flexible unit axial direction, the second linkage element is the cylinder, the outer wall of second linkage element has the external thread, a part of second linkage element sets up in another counter bore on the flexible unit axial direction, first linkage element, The axes of the second connecting unit and the flexible unit are coincident. Under the condition, the first connecting unit, the second connecting unit and the flexible connecting unit form the first shell and the second shell connecting column, and during and after assembly, the deformation of the flexible connecting unit counteracts the shell stress of the first shell and the second shell, so that the influence of the shell stress on the functional shell of the optical measuring device can be reduced.
In the connection column according to the first aspect of the present invention, the first connecting means and the flexible means are integrally provided in a counterbore at one end in the axial direction of the flexible means by one of the methods of fitting, engaging, interference coupling, and adhesive bonding, the second connecting means and the flexible means are partially provided in a counterbore at the other end in the axial direction of the flexible means by one of the methods of fitting, engaging, interference coupling, and adhesive bonding, and the axes of the first connecting means, the second connecting means, and the flexible means are aligned with each other. In this case, the first connecting unit, the second connecting unit and the flexible unit can constitute a connecting column for connecting the first housing and the functional housing and for connecting the second housing and the functional housing.
In the connection column according to the first aspect of the present invention, the first connection means is a cylindrical body, the first connection means has a circular through hole penetrating the first connection means in a longitudinal direction of the cylindrical body, an inner wall of the through hole has an internal thread, an outer diameter of the first connection means is smaller than a diameter of the flexible means, and a length of the first connection means is smaller than a length of the flexible means. In this case, the internal thread of the first connection unit and the screw can be engaged to connect the first housing or the second housing with the connection column.
In addition, according to the connection column of the first aspect of the present invention, the second connection unit is a cylindrical body having an external thread on an outer wall thereof, the diameter of the second connection unit is smaller than the diameter of the flexible unit, and the length of a portion of the second connection unit disposed in the counter bore in the axial direction of the flexible unit is smaller than the length of the flexible unit. In this case, the external thread of the second connection unit can be engaged with the screw hole of the functional housing of the precision optical measuring device to achieve a fastening and locking effect.
In addition, according to the connecting column of the first aspect of the present invention, the flexible unit has a flexible deformation portion between the counter bores in the axial direction of the flexible unit, the flexible deformation portion is cylindrical, the length of the flexible deformation portion is smaller than the length of the flexible unit, the diameter of the flexible deformation portion is the same as the diameter of the flexible unit, and the flexible deformation portion coincides with the axis of the flexible unit. Under this condition, when function casing and first casing or second casing pass through the spliced pole to be connected the fastening, the influence of the stress that produces when first casing and the fastening of second casing can play the reduction to the function casing can be played to flexible unit deformation portion.
In addition, according to the connecting column of the first aspect of the present invention, the material of the flexible deformation portion is the same as that of the flexible unit, and the material of the flexible unit is one of soft silicone rubber and soft plastic colloid. Under the condition, the counter bores matched with the flexible deformation part and the first shell and the second shell can be matched to form a fastening connection state, and the deformation of the flexible unit can reduce the influence of stress generated when the first shell and the second shell are fastened on the functional shell.
In addition, according to the connecting column of the first aspect of the present invention, the internal thread is a thread, and the material of the first connecting unit is one of metal, alloy, and hard plastic. In this case, the first connection unit having the thread of the thread form can be locked with the external screw to fasten the first housing or the second housing with the connection column.
In addition, according to the connecting column of the first aspect of the present invention, the external thread is a thread, and the material of the second connecting unit is one of metal, alloy, and hard plastic. In this case, the second connection unit having the thread of the thread form can be locked with the screw hole to fasten the first housing with the function housing or the second housing with the function housing.
In the connection column according to the first aspect of the present invention, the second connection means has one of a cylindrical shape and a circular truncated cone shape. In this case, the second connection unit having the thread of the thread form is locked with the screw hole and can fasten the first housing and the function housing or the second housing and the function housing in a better fit.
A second aspect of the present invention provides a device for precision optical measurement, comprising: the present invention relates to a functional housing for a vehicle, and more particularly to a functional housing for a vehicle, which includes a housing having a first case and a second case, and a functional housing provided in the housing or between the first case and the second case, and which is connected to the functional housing through a connecting column according to a first aspect of the present invention. In this case, the influence of the housing on the functional housing can be reduced, and the accuracy of measurement by the precision optical measuring apparatus can be improved.
According to the present invention, it is possible to provide a connecting column that effectively reduces the influence of the case stress on the functional housing of a precision optical measuring device.
Drawings
FIG. 1 is a schematic view of an optical measurement module of a precision optical measurement apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an optical measurement module of a precision optical measurement apparatus according to an embodiment of the present invention taken along section A-A;
FIG. 3 is an enlarged schematic view of region a of FIG. 2 of the present invention;
FIG. 4 is a schematic exploded view of a precision optical measuring device according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a connecting column according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view taken along axis B-B of a connecting column in accordance with embodiments of the present invention;
FIG. 7 is a top view of a connecting column according to an embodiment of the present invention;
fig. 8 is a schematic view of a functional case of a precision optical measuring apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", "third" and "fourth", etc. in the description and claims of the present invention and the above-mentioned drawings are used for distinguishing different objects and are not used for describing a specific order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. In the following description, the same components are denoted by the same reference numerals, and redundant description thereof is omitted. The drawings are schematic and the ratio of the dimensions of the components and the shapes of the components may be different from the actual ones.
The utility model provides a connecting column for a precision optical measuring device, which can effectively reduce the influence of shell stress on a functional shell of the precision optical measuring device. The following detailed description is made with reference to the accompanying drawings.
Fig. 1 is a schematic view of an optical measurement module of a precision optical measurement apparatus according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional view of the optical measurement module of the precision optical measurement apparatus according to the embodiment of the present invention taken along a-a cross-section, fig. 3 is an enlarged schematic view of a region a in fig. 2 of the present invention, and fig. 4 is a schematic structural disassembly view of the precision optical measurement apparatus according to the embodiment of the present invention.
In some examples, as shown in fig. 2, the connection column 13 according to the embodiment of the present invention may be used for the precision optical measuring apparatus 1.
In some examples, the precision optical measurement device 1 may be a laser tracker, a laser absolute distance meter, or other precision optical measurement device. However, the present invention is not limited to this, and the precision optical measuring apparatus 1 may be another measuring apparatus that performs precision measurement using laser light.
In some examples, the precision optical measurement device 1 may include a housing 11 and a functional housing 12 disposed within the housing, i.e., the functional housing 12 may be disposed in a cavity inside the housing 11.
In some examples, the housing 11 may include a first shell 111 and a second shell 112.
In some examples, as shown in fig. 4, the precision optical measuring device 1 may include a first case 111 and a second case 112, and a functional case 12 disposed between the first case 111 and the second case 112.
In some examples, the first and second housings 111, 112 may have counterbores (not shown) that mate with the connecting studs 13,
in some examples, the counterbore may be provided as a circular counterbore. In some examples, the side wall of the counterbore may be threaded.
In some examples, a counterbore may be associated with connecting stud 13. Specifically, the cross-section of the counterbore may be substantially the same as the cross-section of the connecting post. In some examples, where the connection post is cylindrical, the diameter of the connection post may be approximately the same as the inner diameter of the counterbore. In some examples, the diameter of the connecting post may also be slightly smaller than the inner diameter of the counterbore. In this case, the connecting stud may be placed or fixed in the counterbore.
In some examples, the connection post 13 may be used to connect the first housing 111 and the second housing 112. In this case, the coupling of the first housing 111 and the second housing 112 can be achieved using the coupling post 13.
In other examples, as shown in fig. 3, the connection post 13 may be used to connect the first housing 111 and the functional housing 12. In some examples, a connecting post 13 may be used for the second housing 112 and the functional housing 12. In this case, the coupling of the first housing 111 and the functional housing 12 can be achieved by the coupling post 13, and the coupling of the first housing 5 and the functional housing 12 can be achieved by the coupling post 13.
In some examples, the connection of the connecting post 13 to the counterbore may be a threaded connection. In some examples, the connection of the connecting post 13 to the counterbore may be a screw connection. In some examples, the connection of the connecting post 13 to the counterbore may be a snap fit, an interference coupling, or the like. The first connection unit 131 of the connection column 13 is used to connect the housing 11, and the second connection unit 133 of the connection column 13 is used to connect the functional housing 12. In this case, the housing 11 and the functional housing 12 can be connected, so that the devices in the functional housing 12 can be protected.
Fig. 5 is a schematic perspective view of a connection column according to an embodiment of the present invention, fig. 6 is a schematic cross-sectional view of the connection column according to the embodiment of the present invention taken along the axial center B-B, fig. 7 is a plan view of the connection column according to the embodiment of the present invention, and fig. 8 is a schematic view of a functional housing of a precision optical measuring apparatus according to the embodiment of the present invention;
as shown in fig. 5, the connection column 13 may include: a first connection unit 131, a second connection unit 133, and a flexible unit 132 connecting the first connection unit 131 and the second connection unit 133. The flexible unit 132 is made of a flexible material, and the flexible unit 132 includes a first counter bore (not shown) for receiving the first connection unit 131 and matching the first connection unit 131 at one side of the flexible unit 132, and a second counter bore (not shown) for receiving the second connection unit 133 and matching the second connection unit 133 at the other side of the flexible unit 132.
In some examples, the first connecting unit 131, the second connecting unit 133 and the flexible connecting unit form the connecting column 13 of the first shell 111 and the second shell 112, after the assembly with the functional shell 12 through the screw hole 121 and the screw 14 and the assembly, the fastened shell can easily generate internal stress, and the deformation of the flexible connecting unit 132 can counteract the stress of the upper shell and the lower shell, so that the influence of the shell stress on the functional shell 12 of the precision optical measurement device can be reduced, and the purpose of eliminating beam deviation can be achieved.
As shown in fig. 6, the first connection unit 131 may be disposed in a first counter bore of the connection column 13 by one of an embedding, a clamping, an interference coupling or an adhesive bonding method, and the second connection unit 133 may be disposed in a second counter bore of the connection column 13 by one of an embedding, a clamping, an interference coupling or an adhesive bonding method. The first connecting unit 131, the second connecting unit 133 and the flexible unit 132 constitute a connecting column 13 for a laser.
In some examples, the first connection unit 131 may be a cylinder of one of metal, alloy or plastic material, the cylinder may be provided in a cylindrical shape, the first connection unit 131 has a through hole penetrating the first connection unit 131 in a length direction of the cylinder, and an internal thread is provided on an inner wall of the through hole, and the internal thread of the first connection unit 131 can be engaged with the screw 14 to connect the first housing 111 or the second housing 112 with the connection column 13.
In some examples, the second connection unit 133 is a cylinder made of one of metal, alloy or plastic material, the cylinder may be configured to be cylindrical, and an external thread is provided on an outer wall of the second connection unit 133, so that the external thread of the second connection unit 133 can be matched with the screw hole 121 of the functional housing 12 of the precision optical measurement apparatus to achieve a fastening and locking effect.
In some examples, the adhesive may be selected from industrial adhesives such as flash glue, super glue, rosin, beeswax, or asphalt, which are used to glue the first connecting unit 131 of the connecting column 13 and the first counter bore of the flexible unit 132, and the second connecting unit 133 of the connecting column 13 and the second counter bore of the flexible unit 132, so as to form a complete connecting column 13 for solving the problem of beam drift caused by the shell locking stress of the precision optical measurement apparatus 1 according to the present invention.
In some examples, the flexible unit 132 includes a flexible deformation portion 132 disposed between the first counterbore and the second counterbore, the flexible deformation portion 132 is made of a flexible material, and optionally, is generally made of soft silicone, rubber or soft plastic, and has a shore hardness of a25 to a50 (or shore hardness), and is configured as a smooth cylinder, and when the functional housing 12 is fastened to the first housing 111 or the second housing 112 through the connecting column 13, the flexible deformation portion 132 deforms to reduce the influence of the stress generated when the first housing 111 and the second housing 112 are fastened on the functional housing 12.
Fig. 6 is a schematic cross-sectional view of a connecting column taken along the axis B-B according to an embodiment of the present invention.
As shown in fig. 6 and 7, the flexible unit 132 (i.e. the deformation portion 202) of the connection column 13, the flexible deformation portion 132 may be cylindrical, the material of the connection column 13 may be one of soft silicone, rubber or soft plastic, and the cylindrical flexible deformation portion 132 cooperates with the locking screw hole 121 matched with the first shell 111 and the second shell 112 to form a fastening connection state and eliminate the influence of shell stress when fastening.
In some examples, the shore hardness of the flexible material may be a20 to a60, for example the shore hardness of the flexible material may be a20, a25, a30, a35, a40, a45, a50, a55, a 60. Preferably, the shore hardness of the flexible material may be a25 to a 55. In some examples, the flexible material may be one of soft silicone, rubber, or soft plastic, and when the first shell 111 or the second shell 112 is fastened to the functional shell 12, the stress generated by the first shell 111 or the second shell 112 will be offset by the flexible deformation portion 132 due to its elasticity or flexibility.
As shown in fig. 6, the first unit of the connection column 13 has a thread with a thread pitch of 0.35 to 0.5, and the number of threads is a single thread, and can be a right-hand thread and a left-hand thread, and the first unit with the thread is locked with the screw 14, and then the first shell 111 or the second shell 112 is fastened with the functional shell 12 through a counter bore adapted to the housing.
As shown in fig. 6, the second unit of the connection column 13, the external thread may be a thread form, the thread pitch of the external thread is 0.35 to 0.5, the number of threads may be a single thread, and right-hand thread and left-hand thread may be selected, the second unit having the thread form is tightly locked with the screw hole 121 of the functional housing 12, and then the first housing 111 or the second housing 112 is fastened with the functional housing 12 through the counter bore of the housing adapter.
In some examples, as shown in fig. 8, the screw holes 121 may be provided at corners of the functional housing 12, respectively. In some examples, the screw holes 121 may be respectively provided at 8 corners of the functional housing 12. In this case, the first housing 111, the second housing 112, and the functional housing 12 can be connected together by 8 connection posts 13.
A precision optical measuring apparatus 1 according to an embodiment of the present invention may include: the housing 11 and the functional housing 12 disposed in the housing 11, the housing 11 has the first housing 111 and the second housing 112, and the first housing 111 and the second housing 112 are connected by the above-mentioned connecting column 13 of the present invention, so that the influence of the housing 11 on the functional housing 12 can be reduced, and the accuracy of the precision optical measuring apparatus 1 can be improved.
While the utility model has been described in detail in connection with the drawings and examples, it is to be understood that the above description is not intended to limit the utility model in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the true spirit and scope of the utility model, and such modifications and variations are within the scope of the utility model.
Claims (10)
1. A connection post for a precision optical measuring device, the precision optical measuring device including a housing having a first housing, a second housing, and a functional housing disposed between the first housing and the second housing, the first housing and the second housing having counter bores matching with the connection post, the functional housing having screw holes matching with the connection post, the connection post being used to connect the first housing with the functional housing and to connect the second housing with the functional housing, characterized in that: the spliced pole includes first linkage element, second linkage element and connects first linkage element with the flexible unit of second linkage element, the flexible unit is cylindricly and the shore hardness of flexible unit is less than the shore hardness of shell, the spliced pole has at axial direction's both ends and holds respectively first linkage element with the counter bore of second linkage element, first linkage element is the cylinder that has the through-hole, the inner wall of first linkage element has the internal thread, first linkage element sets up in a counter bore on the flexible unit axial direction, the second linkage element is the cylinder, the outer wall of second linkage element has the external thread, a part of second linkage element sets up in another counter bore on the flexible unit axial direction, first linkage element, The axes of the second connecting unit and the flexible unit are coincident.
2. The connecting stud of claim 1,
the first connecting unit and the flexible unit are integrally arranged in a counter bore at one end of the flexible unit in the axial direction through one of embedding, clamping, interference coupling or adhesive bonding modes, the second connecting unit and the flexible unit are partially arranged in a counter bore at the other end of the flexible unit in the axial direction through one of embedding, clamping, interference coupling or adhesive bonding modes, and the shafts of the first connecting unit, the second connecting unit and the flexible unit are overlapped.
3. The connecting stud of claim 1,
the first connecting unit is provided with a circular through hole penetrating through the first connecting unit along the length direction of the cylinder, inner threads are arranged on the inner wall of the through hole, the outer diameter of the first connecting unit is smaller than the diameter of the flexible unit, and the length of the first connecting unit is smaller than that of the flexible unit.
4. The connecting stud of claim 1,
the outer wall of the second connecting unit is provided with external threads, the diameter of the second connecting unit is smaller than that of the flexible unit, and the length of the part, arranged in the counter bore in the axial direction of the flexible unit, of the second connecting unit is smaller than that of the flexible unit.
5. The connecting stud of claim 1,
the flexible unit is in flexible unit axial direction is ascending to have flexible deformation portion between the counter bore, flexible deformation portion is cylindric, the length of flexible deformation portion is less than the length of flexible unit, flexible deformation portion diameter with flexible unit diameter is the same, just flexible deformation portion with the axle coincidence of flexible unit.
6. The connecting stud of claim 5,
the material of flexible deformation portion with flexible unit is the same, flexible unit material's material is one of soft silica gel, rubber or soft plastic colloid.
7. The connecting stud of claim 3,
the internal thread is a tooth-shaped thread, and the first connecting unit is made of one of metal, alloy and hard plastic.
8. The connecting stud of claim 4,
the external thread is a tooth-shaped thread, and the material of the second connecting unit is one of metal, alloy and hard plastic.
9. The connecting stud of claim 1,
the second connecting unit is cylindrical or truncated cone-shaped.
10. A precision optical measuring device is characterized in that,
the method comprises the following steps: a housing and a functional housing arranged within the housing or between the first housing and the second housing, the housing having a first housing and a second housing, the first housing and the second housing being connected to the functional housing by means of a connecting column according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121701829.6U CN215572705U (en) | 2021-07-23 | 2021-07-23 | Connecting column for precision optical measuring device and adaptive measuring device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121701829.6U CN215572705U (en) | 2021-07-23 | 2021-07-23 | Connecting column for precision optical measuring device and adaptive measuring device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215572705U true CN215572705U (en) | 2022-01-18 |
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ID=79828424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121701829.6U Active CN215572705U (en) | 2021-07-23 | 2021-07-23 | Connecting column for precision optical measuring device and adaptive measuring device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215572705U (en) |
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2021
- 2021-07-23 CN CN202121701829.6U patent/CN215572705U/en active Active
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