CN115592627A - Positioning device and optical system testing equipment - Google Patents
Positioning device and optical system testing equipment Download PDFInfo
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- CN115592627A CN115592627A CN202211380795.4A CN202211380795A CN115592627A CN 115592627 A CN115592627 A CN 115592627A CN 202211380795 A CN202211380795 A CN 202211380795A CN 115592627 A CN115592627 A CN 115592627A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 113
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/02—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention discloses a positioning device and optical system test equipment, which belong to the technical field of optical test, wherein the positioning device comprises a bearing platform, a fixed block, a sliding block and a locking assembly, the bearing platform is provided with a reference plane, and the reference plane is provided with a plurality of scale marks; the fixed block is fixedly connected with the bearing platform and is provided with a first positioning surface which is aligned with one scale mark; the sliding block is connected with the bearing platform in a sliding mode, the sliding block is provided with a second positioning surface, the second positioning surface can be aligned to another scale mark, and the part to be positioned can be clamped between the first positioning surface and the second positioning surface; the locking assembly is connected with the sliding block, and the locking assembly can be pressed and released to selectively lock the sliding block and the bearing platform. The optical system testing apparatus comprises a positioning device as described above. In the positioning process, only the sliding block needs to be moved and locked, the positioning time is shortened, the scale marks are used as reference, and the positioning part can be protected while the positioning accuracy is improved.
Description
Technical Field
The invention relates to the technical field of optical testing, in particular to a positioning device and optical system testing equipment.
Background
In the field of optical detection, especially for some optical systems to be applied to important production or living occasions, some key indexes need to be tested one by one for judging whether the optical systems are qualified or not. Such optical systems are often mass produced and therefore have the characteristics of a large number of products to be inspected and similar detection schemes.
The optical chip is used for completing photoelectric signal conversion, is equivalent to an information transfer station, and belongs to a core device on a mobile device. In the process of optical chip production, the optical chip needs to be tested before leaving the factory so as to ensure that the optical chip is qualified in quality and can really work, and bad experience feeling brought to consumers is avoided. The optical chips are usually produced in batches, so that the optical chips have the characteristics of large number of products to be detected and similar detection schemes.
In the conventional optical chip testing, referring to fig. 1, most of the optical chips 10 ' are manually placed on the testing platform 20 ', then the optical chips 10 ' are clamped by a plurality of positioning pieces 30 ', and the positioning pieces 30 ' are locked and fixed with the testing platform 20 ' by bolts 40 '. In the above positioning manner, after each optical chip 10 'is detected, the bolt 40' needs to be manually loosened, and after another optical chip 10 'is replaced, the bolt 40' is screwed, so that the positioning time is long; the optical chip 10' is vulnerable to pinching: in the process of screwing the bolt 40 ', the positioning piece 30 ' can slightly move and needs to be continuously adjusted, and the risk of clamping and damaging the optical chip 10 ' exists in the process; the optical chip 10' is damaged or stuck due to over-tight fixation, and the positioning error and the positioning accuracy are difficult to guarantee due to over-loose fixation.
Disclosure of Invention
The invention aims to provide a positioning device and optical system testing equipment, which are used for reducing positioning time, improving positioning precision and protecting a to-be-positioned piece.
As the conception, the technical scheme adopted by the invention is as follows:
a positioning device, comprising:
the bearing platform is provided with a reference plane, and a plurality of scale marks are arranged on the reference plane;
the fixed block is fixedly connected with the bearing platform and is provided with a first positioning surface, and the first positioning surface is aligned with one of the scale marks;
the sliding block is connected with the bearing platform in a sliding mode and provided with a second positioning surface, the second positioning surface can be aligned with the other scale mark, and a part to be positioned can be clamped between the first positioning surface and the second positioning surface;
and the locking component is connected with the sliding block and can be pressed and released to selectively lock the sliding block and the bearing platform.
The bearing platform comprises a platform body and a guide rail fixed on the platform body, a plurality of main scale lines are arranged on the guide rail to form a main ruler, a plurality of auxiliary scale lines are arranged on the sliding block to form a vernier scale, and the vernier scale is connected with the main ruler in a sliding mode to form a vernier caliper.
Wherein the first location surface is aligned with a zero scale of the main scale mark.
The locking assembly comprises a pressing piece and a locking piece, the pressing piece is elastically connected with the sliding block, the locking piece is rotatably connected with the sliding block, one end of the pressing piece is pressed, the other end of the pressing piece is abutted against one end of the locking piece, and therefore the other end of the locking piece is locked with the guide rail.
Wherein, the retaining member with guide rail joint or magnetism are inhaled and are connected.
The pressing piece comprises a pressing head, a pressing rod connected with the pressing head and a protective sleeve sleeved on the pressing rod, a plurality of elastic pieces are arranged at one end, far away from the pressing head, of the pressing rod, the protective sleeve is fixedly connected with the sliding block, the pressing rod is elastically connected with the protective sleeve, and the pressing rod can move between a first position and a second position.
The outer wall of the pressing rod is provided with a first positioning bulge, the inner wall of the protective sleeve is provided with a second positioning bulge, the second positioning bulge is enclosed to form a positioning groove, and the first positioning bulge can penetrate through the positioning groove and is abutted to the second positioning bulge.
The locking assembly comprises a pressing piece, the pressing piece comprises a pressing head and a pressing rod connected with the pressing head, one end, far away from the pressing head, of the pressing rod is provided with a first locking protrusion, a second locking protrusion is arranged on the bearing platform, the second locking protrusion is arranged in a locking groove in a surrounding mode, and the first locking protrusion can penetrate through the locking groove and is abutted to the second locking protrusion.
The positioning block is fixedly connected with the bearing platform and provided with a third positioning surface, the third positioning surface is perpendicular to the first positioning surface, and the to-be-positioned part can abut against the third positioning surface.
An optical system testing apparatus comprising a positioning device as described above.
The invention has the beneficial effects that:
when the positioning device is used, the fixed block is arranged on the bearing platform, so that the first positioning surface is aligned with one scale mark, the fixed block is fixedly connected with the bearing platform, one side of the to-be-positioned piece is attached to the first positioning surface, the position of the sliding block is adjusted according to the size of the to-be-positioned piece, so that the second positioning surface is aligned with the other scale mark, the to-be-positioned piece can be clamped between the first positioning surface and the second positioning surface according to the scale marks, and the sliding block and the bearing platform are locked through the locking assembly; in the positioning process, only the sliding block needs to be moved and locked, the locking assembly can be pressed and released to selectively lock the sliding block and the bearing platform, the positioning time is shortened, and the reference is made by scale marks, so that the part to be positioned cannot be clamped, the over-tightening or over-loosening fixation can be avoided, and the part to be positioned can be protected while the positioning accuracy is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art optical chip positioning device;
FIG. 2 is a top view of a positioning device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a positioning apparatus according to an embodiment of the present invention;
FIG. 4 is a side view of a positioning device according to a first embodiment of the present invention, with a locking assembly in an unlocked state;
FIG. 5 is a schematic view of the locking assembly of FIG. 4;
FIG. 6 is a second side view of the positioning device with the locking assembly in a locked position according to the first embodiment of the present invention;
FIG. 7 is a schematic view of the locking assembly of FIG. 6;
FIG. 8 is a schematic view of a pressing member according to a first embodiment of the present invention;
FIG. 9 is a first schematic view of a pressing member engaged with a protective sheath according to a first embodiment of the present invention;
FIG. 10 is a second schematic view of the pressing member and the protective sheath according to the first embodiment of the present invention;
fig. 11 is a schematic structural diagram of a positioning device according to a second embodiment of the present invention;
FIG. 12 is a top view of a positioning device provided in accordance with a third embodiment of the present invention;
fig. 13 is a schematic structural view of a pressing member according to a third embodiment of the present invention;
FIG. 14 is a first side view of the positioning device provided in the third embodiment of the present invention, with the locking assembly in an unlocked state;
FIG. 15 is a second side view of the positioning device with the locking assembly in a locked position according to the third embodiment of the present invention;
FIG. 16 is a first side view of the positioning device with the locking assembly in an unlocked position according to the fourth embodiment of the present invention;
fig. 17 is a second side view of the positioning device according to the fourth embodiment of the present invention, wherein the locking assembly is in a locked state.
In fig. 1:
10', an optical chip; 20', a detection platform; 30', a positioning sheet; 40', a bolt;
in fig. 2-17:
100. an optical chip;
10. a load-bearing platform; 11. a platform body; 111. a second locking projection; 112. a locking groove; 113. an iron block; 12. a guide rail; 121. a limiting groove;
20. a fixed block; 201. a first positioning surface;
30. a slider; 301. a second positioning surface; 302. pressing the channel; 303. a first protrusion;
40. a locking assembly; 41. a pressing member; 411. a pressing head; 412. a pressing lever; 4121. a first positioning projection; 4122. a first locking projection; 413. a protective sleeve; 4131. a second positioning projection; 414. a spring plate; 42. a locking member; 421. a connecting rod; 422. a locking portion;
50. and (5) positioning the blocks.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
The embodiment provides an optical system test equipment, which comprises a positioning device and a test device, wherein the positioning device can position a to-be-tested piece, and the test device can test the to-be-tested piece after positioning. The optical testing device can be a five-axis optical testing device, and during the testing process, the testing light spot of the optical lens needs to accurately capture the central point of the piece to be tested.
Referring to fig. 2 and fig. 3, the positioning device provided in the embodiment of the present invention can position a to-be-positioned element, where the to-be-positioned element may be an optical chip 100, a display panel, or the like. The positioning device comprises a bearing platform 10, a fixed block 20, a sliding block 30 and a locking assembly 40, wherein the bearing platform 10 is provided with a reference plane, and a plurality of scale marks are arranged on the reference plane; the fixed block 20 is fixedly connected with the bearing platform 10, the fixed block 20 is provided with a first positioning surface 201, and the first positioning surface 201 is aligned with one scale mark; the sliding block 30 is connected with the bearing platform 10 in a sliding mode, the sliding block 30 is provided with a second positioning surface 301, the second positioning surface 301 can be aligned with another scale mark, and a part to be positioned can be clamped between the first positioning surface 201 and the second positioning surface 301; a locking assembly 40 is coupled to the slide block 30, the locking assembly 40 being capable of being depressed and released to selectively lock the slide block 30 to the load-bearing platform 10.
When the positioning device is used, the fixing block 20 is placed on the bearing platform 10, the first positioning surface 201 is aligned with one scale mark, the fixing block 20 is fixedly connected with the bearing platform 10, one side of a to-be-positioned part is attached to the first positioning surface 201, the position of the sliding block 30 is adjusted according to the size of the to-be-positioned part, the second positioning surface 301 is aligned with the other scale mark, the to-be-positioned part can be clamped between the first positioning surface 201 and the second positioning surface 301 according to the scale mark, and the sliding block 30 is locked with the bearing platform 10 through the locking assembly 40; in the positioning process, only the sliding block 30 needs to be moved and locked, the locking assembly 40 can be pressed and released to selectively lock the sliding block 30 and the bearing platform 10, the positioning time is shortened, and the scale marks are used as references, so that the part to be positioned cannot be clamped, the phenomenon that the part to be positioned is too tight or too loose to be fixed can be avoided, and the part to be positioned can be protected while the positioning accuracy is improved.
The guide rail 12 and the platform body 11 can be connected through bolts, the position of the guide rail 12 can be adjusted, and the guide rail 12 can be replaced. The guide rail 12 may protrude from the upper surface of the platform body 11, may be flush with the upper surface of the platform body 11, and may be recessed in the upper surface of the platform body 11. When a workpiece to be positioned is placed, the workpiece to be positioned is placed on the guide rail 12 or the platform body 11.
The sliding block 30 may be slidably connected to the platform body 11, and specifically, a guide groove is provided on the platform body 11, and the sliding block 30 is slidably connected to the guide groove. It is also possible that the sliding block 30 is disposed on the upper surface of the platform body 11 and is slidably connected to the guide rail 12, and specifically, the guide rail 12 is disposed through the sliding block 30. The locking assembly 40 only needs to lock the sliding block 30 with the platform body 11 and/or the guide rail 12.
In this embodiment, two guide rails 12 are provided, the two guide rails 12 are arranged in parallel at intervals, and the member to be positioned is placed on the two guide rails 12.
The sliding block 30 includes a sliding portion and a connecting portion disposed at the top of the sliding portion, the sliding portion is slidably connected to the guide groove, and the sub-scale lines are disposed on the connecting portion. The connecting part is provided with two discontinuous sections, so that the main scale marks at the discontinuous positions can be observed conveniently.
The fixing block 20 and the bearing platform 10 can be locked by bolts, so that the first positioning surface 201 is aligned with the zero scale of the main scale mark. When in use, only the sliding block 30 needs to be adjusted. Of course, the first positioning surface 201 may also be aligned with other scales of the main scale mark, and only the distance between the first positioning surface 201 and the second positioning surface 301 needs to be ensured for calculation during positioning. After adjusting the positions of both the first positioning surface 201 and the second positioning surface 301, the member to be positioned may be inserted between the two positioning surfaces.
The positioning device further comprises a positioning block 50, the positioning block 50 is fixedly connected with the bearing platform 10, the positioning block 50 is provided with a third positioning surface, and the third positioning surface is perpendicular to the first positioning surface 201. It can be understood that the fixed block 20 and the sliding block 30 can clamp two opposite sides of the to-be-positioned element, and the positioning block 50 is attached to the third side of the to-be-positioned element, so that the to-be-positioned element is completely positioned.
Between locating piece 50 and load-bearing platform 10, can pass through bolt locking for the fixed position of third locating surface, when using, only need adjust sliding block 30 can. After the positions of the first positioning surface 201, the second positioning surface 301 and the third positioning surface are adjusted, the part to be positioned can be inserted among the three positioning surfaces.
Referring to fig. 4-10, a push-type locking assembly 40 is employed that can be depressed and released for operation. Specifically, in the pressed state, the locking assembly 40 is in the locked state, and the sliding block 30 is locked with respect to the load-bearing platform 10, and in the released state, the locking assembly 40 is in the unlocked state, and the sliding block 30 can slide with respect to the load-bearing platform 10.
The locking assembly 40 comprises a pressing member 41 and a locking member 42, the pressing member 41 is elastically connected with the sliding block 30, the locking member 42 is rotatably connected with the sliding block 30, and when one end of the pressing member 41 is pressed, the other end of the pressing member 41 presses against one end of the locking member 42, so that the other end of the locking member 42 is locked with the guide rail 12.
Specifically, the pressing member 41 includes a pressing head 411, a pressing rod 412 connected to the pressing head 411, and a protection sleeve 413 covering the pressing rod 412, wherein a plurality of elastic pieces 414 are disposed at one end of the pressing rod 412 far away from the pressing head 411, the protection sleeve 413 is fixedly connected to the sliding block 30, the pressing rod 412 is elastically connected to the protection sleeve 413, and the pressing rod 412 is capable of moving between a first position and a second position. Wherein, press through spring coupling between the pole 412 and the protective sheath 413, through pressing and releasing, press the pole 412 and can move between primary importance and second place, when pressing, press the pole 412 and move down, the spring is compressed, and a plurality of shell fragment 414 all outwards opens and shell fragment 414 extrudees with retaining member 42.
In this embodiment, the outer wall of the pressing rod 412 is provided with a first positioning protrusion 4121, the inner wall of the protection sleeve 413 is provided with a second positioning protrusion 4131, the second positioning protrusion 4131 is enclosed to form a positioning groove, and the first positioning protrusion 4121 can pass through the positioning groove and abut against the second positioning protrusion. In the first position, the first positioning protrusions 4121 are disengaged from the second positioning protrusions 4131, as shown in fig. 9, the first positioning protrusions 4121 are located above the second positioning protrusions 4131, the first positioning protrusions 4121 can pass through the positioning grooves by pressing and rotating the pressing lever 412, and when the pressing lever 412 is released, the first positioning protrusions 4121 are located below the second positioning protrusions 4131 and abut against the second positioning protrusions 4131, as shown in fig. 10, the pressing lever 412 is located in the second position. It will be appreciated that the detent is a straight slot or a cross slot.
The locking member 42 includes a connecting rod 421 and a locking portion 422 disposed at one end of the connecting rod 421, the connecting rod 421 is rotatably connected to the sliding block 30, and the pressing member 41 can press one end of the connecting rod 421 away from the locking portion 422. The locker 42 corresponds to a lever structure, and when one end of the locker 42 is pressed, the other end of the locker 42 is lifted up to be coupled with the guide rail 12.
In this embodiment, retaining member 42 is magnetically attached to rail 12. Specifically, the locking portion 422 is a magnet, an iron sheet is disposed on the surface of the guide rail 12, when the sliding block 30 needs to be locked, the pressing head 411 of the pressing member 41 is pressed, the plurality of elastic sheets 414 are all opened outwards and the elastic sheets 414 are pressed with the connecting rod 421 of the locking member 42, and the connecting rod 421 rotates, so that the magnet and the iron sheet attract each other.
When the sliding block 30 needs to be moved, the pressing rod 412 is pressed and rotated, so that the first positioning protrusion 4121 is separated from the second positioning protrusion 4131, the first positioning protrusion 4121 can upwards penetrate through the positioning groove and be located above the second positioning protrusion 4131, the elastic piece 414 does not extrude the connecting rod 421 any more, in order to facilitate automatic resetting of the connecting rod 421, an elastic resetting piece is arranged between the locking part 422 and the sliding block 30, under the action of the elastic resetting piece, the locking part 422 is separated from the guide rail 12, and at the moment, the sliding block 30 can automatically slide.
It is understood that the locking assembly 40 may be provided in one, two, or more sets, and is not limited thereto.
Example two
Fig. 11 shows a second embodiment, in which the same or corresponding parts as in the first embodiment are provided with the same reference numerals as in the first embodiment. For simplicity, only the differences between the second embodiment and the first embodiment will be described. The difference is that in this embodiment, retaining member 42 is snap-fit to rail 12. Specifically, the locking member 42 is provided with a limiting protrusion, and the guide rail 12 is provided with a limiting groove 121, and the limiting protrusion can be inserted into the limiting groove 121.
EXAMPLE III
Fig. 12 to 15 show a third embodiment, wherein the same or corresponding parts as in the first embodiment are provided with the same reference numerals as in the first embodiment. For the sake of simplicity, only the points of difference between the third embodiment and the first embodiment will be described. The locking assembly 40 is characterized in that the pressing member 41 comprises a pressing head 411 and a pressing rod 412 connected with the pressing head 411, a first locking protrusion 4122 is arranged at one end, away from the pressing head 411, of the pressing rod 412, a second locking protrusion 111 is arranged on the bearing platform 10, the second locking protrusion 111 is enclosed into a locking groove 112, and the first locking protrusion 4122 can penetrate through the locking groove 112 and abut against the second locking protrusion 111.
Specifically, the sliding block 30 has a pressing channel 302 formed thereon, the pressing rod 412 is inserted into the pressing channel 302, and the pressing rod 412 is movable between a first position and a second position. Wherein, the pressing rod 412 is sleeved with a spring, and the pressing rod 412 can move between a first position and a second position by pressing and releasing.
In the first position, the first locking protrusion 4122 is disengaged from the second locking protrusion 111, see fig. 14, in which the first locking protrusion 4122 is located above the second locking protrusion 111, and by pressing and rotating the pressing lever 412, the first locking protrusion 4122 can be made to pass downward through the locking groove 112, and in the release of the pressing lever 412, the first locking protrusion 4122 is located below the second locking protrusion 111 and abuts against the second locking protrusion 111, see fig. 15, in which the pressing lever 412 is located in the second position. It will be appreciated that the locking slot 112 is a straight slot or a cross slot. The first locking protrusion 4122 abuts against the second locking protrusion 111, so that the sliding block 30 and the bearing platform 10 are locked.
After releasing the pressing lever 412, in order to prevent the pressing lever 412 from being detached from the slide block 30, the first protrusion 303 is provided on the inner wall of the pressing channel 302, and the first locking protrusion 4122 can abut against the first protrusion 303.
Specifically, when the first locking projection 4122 abuts against the second locking projection 111, the first locking projection 4122 can be made to pass upward through the locking groove 112 by pressing and rotating the pressing lever 412, and the first locking projection 4122 is positioned above the second locking projection 111 and abuts against the first projection 303 by the spring, and the first projection 303 can restrict the pressing lever 412 from coming out of the pressing passage 302.
Example four
Fig. 16 and 17 show a fourth embodiment, wherein the same or corresponding parts as the third embodiment are provided with the same reference numerals as the third embodiment. For the sake of simplicity, only the points of difference between the fourth embodiment and the third embodiment will be described. The locking assembly 40 is characterized in that the locking assembly comprises a pressing piece 41, the pressing piece 41 comprises a pressing head 411 and a pressing rod 412 connected with the pressing head 411, a magnet is arranged at one end, away from the pressing head 411, of the pressing rod 412, an iron block 113 is arranged on the bearing platform 10, and the magnet can attract the iron block 113.
Specifically, when the pressing lever 412 is in the first position, the first locking protrusion 4122 abuts against the first protrusion 303, see fig. 16, and the magnet is disengaged from the iron block 113, and by pressing the pressing lever 412, the magnet can be moved downward until the magnet is attracted to the iron block 113, see fig. 17, and the pressing lever 412 is in the second position. When the sliding block 30 needs to be moved, the magnet can be separated from the iron block 113 only by applying a force upwards on the pressing head 411, the pressing rod 412 is sprung upwards under the action of the spring, the first locking protrusion 4122 is abutted to the first protrusion 303, and the first protrusion 303 can limit the pressing rod 412 from being separated from the pressing channel 302.
The foregoing embodiments are merely illustrative of the principles and features of this invention, and the invention is not limited to the embodiments described above, but rather, is susceptible to various changes and modifications without departing from the spirit and scope of the invention, as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A positioning device, comprising:
the bearing platform (10) is provided with a reference plane, and a plurality of scale marks are arranged on the reference plane;
the fixed block (20) is fixedly connected with the bearing platform (10), the fixed block (20) is provided with a first positioning surface (201), and the first positioning surface (201) is aligned with one scale mark;
the sliding block (30) is connected with the bearing platform (10) in a sliding mode, the sliding block (30) is provided with a second positioning surface (301), the second positioning surface (301) can be aligned with the other scale mark, and a to-be-positioned element can be clamped between the first positioning surface (201) and the second positioning surface (301);
a locking assembly (40) connected to the sliding block (30), the locking assembly (40) being depressible and releasable to selectively lock the sliding block (30) with the load-bearing platform (10).
2. The positioning device according to claim 1, wherein the bearing platform (10) comprises a platform body (11) and a guide rail (12) fixed on the platform body, a plurality of main scale lines are arranged on the guide rail (12) to form a main ruler, a plurality of auxiliary scale lines are arranged on the sliding block (30) to form a vernier caliper, and the vernier caliper is connected with the main ruler in a sliding manner to form a vernier caliper.
3. A positioning device according to claim 2, wherein said first positioning surface (201) is aligned with the zero graduation of said main graduation marks.
4. The positioning device according to claim 2, wherein the locking assembly (40) comprises a pressing member (41) and a locking member (42), the pressing member (41) is elastically connected with the sliding block (30), the locking member (42) is rotatably connected with the sliding block (30), and when one end of the pressing member (41) is pressed, the other end of the pressing member (41) presses against one end of the locking member (42) so that the other end of the locking member (42) is locked with the guide rail (12).
5. The positioning device according to claim 4, characterized in that the locking element (42) is in a snap-fit or magnetically attractive connection with the guide rail (12).
6. The positioning device according to claim 4, wherein the pressing member (41) includes a pressing head (411), a pressing rod (412) connected to the pressing head (411), and a protection sleeve (413) sleeved on the pressing rod (412), one end of the pressing rod (412) away from the pressing head (411) is provided with a plurality of elastic sheets (414), the protection sleeve (413) is fixedly connected to the sliding block (30), the pressing rod (412) is elastically connected to the protection sleeve (413), and the pressing rod (412) is capable of moving between a first position and a second position.
7. The positioning device according to claim 6, wherein the pressing rod (412) is provided with a first positioning protrusion (4121) on the outer wall thereof, the protective sleeve (413) is provided with a second positioning protrusion (4131) on the inner wall thereof, the second positioning protrusion (4131) is enclosed as a positioning groove, and the first positioning protrusion (4121) can pass through the positioning groove and abut against the second positioning protrusion (4131).
8. The positioning device according to claim 1, wherein the locking assembly (40) comprises a pressing piece (41), the pressing piece (41) comprises a pressing head (411) and a pressing rod (412) connected with the pressing head (411), one end of the pressing rod (412) far away from the pressing head (411) is provided with a first locking protrusion (4122), the bearing platform (10) is provided with a second locking protrusion (111), the second locking protrusion (111) is enclosed into a locking groove (112), and the first locking protrusion (4122) can pass through the locking groove (112) and abut against the second locking protrusion (111).
9. The positioning device according to any one of claims 1 to 8, further comprising a positioning block (50), wherein the positioning block (50) is fixedly connected to the carrying platform (10), the positioning block (50) has a third positioning surface, the third positioning surface is perpendicular to the first positioning surface (201), and the to-be-positioned member can abut against the third positioning surface.
10. Optical system testing apparatus, characterized in that it comprises a positioning device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211380795.4A CN115592627B (en) | 2022-11-04 | 2022-11-04 | Positioning device and optical system testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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