Plug-in type load model of optical turntable

Abstract

The utility model belongs to the technical field of optical load models, and particularly relates to a plug-in type load model of an optical turntable. The device comprises a load block, a counterweight piece and a connecting piece, the load block is a cube, the load block comprises a shell with an opening in one face and a cover plate covering the opening of the shell in a matched mode, a cavity with the wall thickness consistent with the thickness of the cover plate is formed in the shell, and a plurality of isolation pieces are arranged in the cavity; the plurality of separators are arranged at intervals from the center of the cavity to the periphery or are uniformly arranged at intervals from the center of the cavity to two sides along one direction, so that the cavity is divided into a plurality of slots; a plurality of counterweight pieces are symmetrically assembled in the slots by taking the cavity as the center, and the counterweight pieces are propped against and fixed with the slots and the inner wall surface of the cover plate; the connecting pieces are symmetrically arranged on the two sides of the load block. The utility model is used for solving the problem that the optical turntable test load is high in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical load models, and in particular relates to a plug-in load model of an optical turntable. Background Art

[0002] An optical turntable is a physical measuring instrument that can accurately rotate optical elements or optical systems to achieve observation, measurement, and adjustment at different angles. It is usually composed of a rotating platform, a drive system, and a control system.

[0003] The optical turntable in actual use is equipped with an optical instrument load. During the test process, an external load model is usually connected to the optical turntable first. Only after the test is completed will the actual optical load be installed on the turntable. For the load model, the center of gravity of the load model needs to be at the center of its three axes, and the deviation should be around plus or minus 1mm. For different optical turntables, the weight requirements of the load model usually have several specifications, such as 8kg, 10kg, 14kg and 18kg, to meet different test requirements. In the past, multiple specifications often required the preparation of different load models to achieve, which increased the cost of testing. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a plug-in load model for an optical turntable, so as to solve the problem of high cost of optical turntable test loads.

[0005] The present invention solves the above-mentioned technical problems with the following technical solutions: a plug-in load model for an optical turntable, comprising:

[0006] A load block, wherein the load block is a cube and comprises a shell with an opening on one side and a cover plate that matches the shell opening. A cavity having a wall thickness consistent with the thickness of the cover plate is formed in the shell. A plurality of spacers are disposed in the cavity. The spacers are spaced apart from the center of the cavity toward the periphery or evenly spaced from the center of the cavity toward both sides in one direction to divide the cavity into a plurality of slots.

[0007] A plurality of counterweights are symmetrically assembled in the slot with respect to the center of the cavity, and the counterweights are fixedly abutted against the slot and the inner wall of the cover plate;

[0008] The connecting pieces are symmetrically arranged on both sides of the load block.

[0009] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0010] By setting the load block as a shell and a cover, a cavity is formed in the shell, and the thickness of the cavity is consistent with that of the outer shell and the cover, so that the center of the cavity is located at the center of gravity of the entire load block, and a slot is set in the cavity. Inserting a matching counterweight into the slot can change the overall weight and achieve weight change. It is suitable for optical turntables with different requirements, wherein the slots are evenly spaced at the center of the cavity or spaced outward, and the counterweights need to be symmetrically inserted with the center of the cavity as the reference, so that the center of gravity of the added counterweights is always maintained at the center of the cavity, thereby keeping the center of gravity position of the entire load block unchanged.

[0011] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0012] In one embodiment, a groove is provided on the outer edge of a side of the cover plate that contacts the shell, and a protrusion matching the groove is provided on the outer edge of the shell opening.

[0013] The beneficial effect of this step is that the cover plate and the shell are connected through matching grooves and protrusions, which makes it easier to position and connect the cover plate and the shell.

[0014] In one embodiment, the outer edge of the groove is provided with a convex stop, and the outer edge of the protrusion is provided with a concave stop matching the convex stop.

[0015] The beneficial effect of this step is: convex stops and concave stops are respectively set on the groove and the protrusion, which increases the gap path between the cover plate and the shell after closing. The curved path can achieve a better sealing effect and increase the connection stability.

[0016] In one embodiment, a plurality of fasteners are provided between the cover plate and the edge of the housing opening.

[0017] The beneficial effect of this step is: in order to ensure the stability of the connection between the cover plate and the shell, the cover plate and the shell can be fastened by adding fasteners.

[0018] In one embodiment, the counterweight is a counterweight with a cross section that is annular, circular, or regular polygonal.

[0019] In one embodiment, the isolating member is an annular isolating member, and the annular isolating member is spaced from the center of the cavity toward the periphery, and the counterweight member is an annular counterweight member or a circular counterweight member with a cross section.

[0020] The beneficial effect of this step is: when the cross-section of the isolation piece is set to be annular, an annular columnar slot is formed, and when a counterweight piece with a circular or annular cross-section is inserted, the annular slot can ensure that the center of gravity of the inserted counterweight piece is always located in the center of the cavity.

[0021] In one embodiment, the isolating member is a plate-shaped isolating member, and the plate-shaped isolating member is evenly spaced from the center of the cavity along one direction to both sides, and the counterweight member is a counterweight member with a circular cross section or a regular polygonal counterweight member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA axis.

[0025] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction.

[0026] Figure 4 This is a structural diagram of another counterweight filling in the utility model.

[0027] Figure 5 This is a structural diagram of another counterweight filling in the utility model.

[0028] Figure 6 It is a schematic diagram of the transverse cross-sectional structure of the present utility model.

[0029] Figure 7 This is a schematic structural diagram of another isolation member in the present invention.

[0030] Reference numerals:

[0031] 1. Load block; 101. Housing; 102. Cover plate;

[0032] 2. Isolation piece; 3. Slot; 4. Counterweight; 5. Connector;

[0033] 6. Groove; 7. Protrusion; 8. Male stop; 9. Female stop; 10. Fastener. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0036] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0038] In this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] like Figure 1-7 As shown, the utility model provides a plug-in load model of an optical turntable, which includes: a load block 1, multiple optional counterweights 4 and two connecting parts 5, wherein the two connecting parts 5 are symmetrically fixed on both sides of the load block 1, and the connecting parts 5 are used to connect and fix with the optical turntable, and the connecting parts 5 are located at the center position of the two side surfaces.

[0040] To ensure that the center and the center of gravity are at the same position, all components disclosed, such as the load block 1, the counterweight 4 and the isolation member 2, have their masses evenly distributed.

[0041] like Figure 1As shown, the load block 1 is a cube, so that the center of gravity of the load block 1 is located at its center. The load block 1 includes a shell 101 with an opening on one side and a cover plate 102 that matches and covers the opening of the shell 101. A cavity with a wall thickness consistent with the thickness of the cover plate 102 is formed in the shell 101. Since the thickness of the cover plate 102 is consistent with the wall thickness of the shell 101, the hollowed-out cavity in the load block 1 is located at the center, that is, the center of the cavity is the center of the load block 1 and coincides with the center of gravity of the load block 1. A plurality of spacers 2 are provided in the cavity. The plurality of spacers 2 are spaced apart from the center of the cavity toward the periphery or evenly spaced from the center of the cavity along one direction toward both sides, so as to divide the cavity into a plurality of slots 3.

[0042] In one embodiment, if Figure 6 、 7 As shown, multiple isolation members 2 are arranged at intervals from the center of the cavity to the periphery. In this way, the isolation members 2 can be annular, cylindrical or regular prism-shaped, that is, the central isolation member 2 can be set to be cylindrical or regular prism-shaped, and then the peripheral isolation members 2 can be set to be annular. In addition, both the central and peripheral isolation members 2 can be set to be annular.

[0043] Correspondingly, the counterweight 4 is a counterweight 4 with a ring-shaped, circular or regular polygonal cross-section, which is used to match and insert into the corresponding ring-shaped slot 3. Specifically, the shape of the counterweight in this embodiment is a columnar three-dimensional structure formed by stretching the cross-section, that is, the ring-shaped, circular, polygonal and other shapes mentioned in this embodiment are all cross-sectional shapes, and the specific shapes of the isolation member and the counterweight are all three-dimensional structures formed by stretching the cross-sectional shape, wherein the ring can be a circular ring or a ring with a regular polygonal bottom surface, which is used to ensure that the center of the shape and the center of gravity remain in the same position.

[0044] Specifically, if Figure 7As shown, multiple isolation members 2 are spaced from the center of the cavity to the periphery. The isolation member 2 at the center of the cavity is annular, and a plurality of annular isolation members 2 are sequentially spaced on the periphery. The top and bottom surfaces of the annular isolation members 2 are respectively matched with the inner wall surface of the cover plate 102 and the bottom surface of the cavity. The center of the isolation member 2 at the center of the cavity is consistent with the center of the cavity. When the isolation member 2 is an annular isolation member 2, the annular isolation member 2 is spaced from the center of the cavity to the periphery, and the counterweight member 4 is a counterweight member 4 with an annular cross section or a circular counterweight member 4, inserted into the slot 3 formed by the isolation piece 2, that is, the center of the most central annular isolation piece 2 can be inserted with a counterweight piece 4 with a ring or circular cross-section, and the outer annular slot 3 can be inserted with an annular counterweight piece 4, and the inner and outer wall surfaces of the annular counterweight piece 4 are respectively abutted against the inner wall surface of the slot 3 for limiting position, and at the same time, the bottom and the top are respectively abutted against the bottom surface of the slot 3 and the bottom surface of the cover plate 102 for limiting position, so that the counterweight piece 4 is fixed in all directions; in this way, load blocks 1 of different weight specifications are formed by inserting different numbers of counterweight pieces 4 to meet different requirements.

[0045] Secondly, if Figure 6 As shown, multiple isolation members 2 can be spaced apart from the center of the cavity to the periphery. The isolation member 2 at the center of the cavity can also be columnar, and only the middle isolation member 2 is formed into a columnar shape. Several annular isolation members 2 are spaced apart in sequence on the periphery to form multiple annular slots 3. The rest are the same as the above-mentioned settings of the annular isolation members 2, and will not be repeated here.

[0046] By setting the isolation piece 2 in a ring shape, an annular slot 3 is formed, and a circular or annular counterweight 4 is inserted, the annular slot 3 can ensure that the center of gravity of the inserted counterweight 4 is always located in the center of the cavity, and the number of inserted counterweights can make the overall mass of the load block 1 present different specifications to meet the use requirements.

[0047] In another embodiment, Figure 1 、 2 As shown, multiple isolation members 2 are evenly spaced from the center of the cavity along a direction to both sides. The direction can extend to both sides on the horizontal plane. Preferably, the direction is set to be perpendicular to the inner wall surface of the cavity. In this way, the isolation member 2 is a plate-shaped isolation member 2, and the spacing distance between adjacent plate-shaped isolation members 2 is the same.

[0048] Correspondingly, the counterweight 4 is a circular counterweight 4 or a regular polygonal counterweight 4. When the counterweight 4 is a circular counterweight 4, the bottom surface and the top surface of the counterweight 4 are respectively in contact with the two side surfaces of the slot 3 for limiting position, and the outer peripheral surface of the counterweight 4 is respectively in contact with the inner wall surface of the slot 3 and the bottom surface of the cover 102 for limiting position. When the counterweight 4 is a regular polygonal counterweight 4, as shown in the figure, the outer peripheral surface of the counterweight 4 has at least four sides in contact with the inner wall surface of the slot 3 and the bottom surface of the cover 102 for limiting position, and the bottom surface and the top surface of the counterweight 4 are respectively in contact with the inner wall surfaces on both sides of the slot 3 for limiting position.

[0049] When the spacer 2 is a plate-shaped spacer 2 , it is necessary to insert the same number of counterweights 4 symmetrically on both sides with the center of the cavity as a reference to ensure that the overall center of gravity is located at the overall center.

[0050] The counterweight 4 is fixedly abutted against the slot 3 and the inner wall of the cover 102, wherein the abutment can be surface-to-surface contact, such as Figure 3 As shown, the plate-shaped counterweight 4 is inserted into the slot 3 formed by the plate-shaped spacer 2, which can be in line-surface contact, such as Figure 4 As shown, when the side edge of the circular spacer 2 abuts against the inner wall of the slot 3, specifically, the surface-to-surface contact may be a partial surface-to-surface contact, such as Figure 5 As shown, one side of the octagon is partially in contact with the inner wall of the slot 3, or it can be completely in contact with the inner wall, such as Figure 3 As shown, the side surface of the square is in complete contact with the inner wall surface of the slot 3;

[0051] The counterweight 4 is restricted to be inserted into the slot 3, and the inner wall surface of the slot 3 and the inner wall surface of the cover 102 contact and abut the counterweight 4 to ensure that there is no gap between the counterweight 4 and the slot 3 and the cover 102, thereby limiting the position of the counterweight 4 and preventing the counterweight 4 from shaking, which is used to limit the counterweight 4.

[0052] In this embodiment, a cavity is formed in the shell 101 by configuring the load block 1 as a shell 101 and a cover plate 102. The thickness of the cavity is consistent with that of the outer shell 101 and the cover plate 102, so that the center of the cavity is located at the center of gravity of the entire load block 1, and a slot 3 is provided in the cavity. Inserting a matching counterweight 4 into the slot 3 can change the overall weight and achieve a change in weight. The embodiment is suitable for optical turntables with different requirements, wherein the slots 3 are evenly spaced at the center of the cavity or spaced outward, and the counterweight 4 needs to be symmetrically inserted with the center of the cavity as the reference, so that the center of gravity of the added counterweight 4 is always maintained at the center of the cavity, thereby keeping the center of gravity position of the entire load block 1 unchanged.

[0053] like Figure 2 As shown, in order to ensure the sealing effect of the connection between the cover plate 102 and the shell 101, a groove 6 is provided on the outer edge of the cover plate 102 that contacts the shell 101, and a protrusion 7 matching the groove 6 is provided on the outer edge of the opening of the shell 101. The cover plate 102 and the shell 101 are connected by matching grooves 6 and protrusions 7, which makes it easier to position and connect the cover plate 102 and the shell 101, and the setting of the grooves 6 and protrusions 7 does not affect the wall thickness of the part of the cover plate 102 that contacts the counterweight 4. The grooves 6 and protrusions 7 are set at the outer position away from the contact between the cover plate 102 and the counterweight 4.

[0054] Furthermore, a convex stop 8 is provided on the outer edge of the groove 6, and a concave stop 9 matching the convex stop 8 is provided on the outer edge of the protrusion 7. The convex stop 8 and the concave stop 9 are respectively provided on the groove 6 and the protrusion 7, thereby increasing the gap path between the rear cover 102 and the shell 101 after closing. The curved path can achieve a better sealing effect and increase the connection stability.

[0055] At the same time, an annular groove may be provided in the groove 6 or the protrusion 7 for placing a sealing ring, so as to enhance the sealing effect between the cover plate 102 and the housing 101 .

[0056] In order to ensure the connection stability between the cover plate 102 and the housing 101, a plurality of fasteners 10 are provided between the cover plate 102 and the edge of the opening of the housing 101. On the one hand, magnets are provided on the groove 6 and the protrusion 7. Figure 2 As shown, specifically, the magnets are embedded in the groove 6 and the protrusion 7, and the magnetic properties of the magnets are used to fasten the cover plate 102 and the housing 101;

[0057] On the other hand, the cover plate 102 and the shell 101 can be fastened together by adding fasteners 10 such as bolts. The bolt fasteners 10 are not shown in the figure. The fasteners 10 can be bolted through the cover plate 102 and then tightened to the shell 101. The arrangement and distribution of the fasteners 10 need to be considered as not to affect the change of the center of gravity of the entire load block 1 as much as possible, and the deviation should be controlled within 1 mm.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plug-in load model for an optical turntable, characterized in that: include: A load block, wherein the load block is a cube and comprises a shell with an opening on one side and a cover plate that matches the shell opening. A cavity having a wall thickness consistent with the thickness of the cover plate is formed in the shell. A plurality of spacers are disposed in the cavity. The spacers are spaced apart from the center of the cavity toward the periphery or evenly spaced from the center of the cavity toward both sides in one direction to divide the cavity into a plurality of slots. A plurality of counterweights are symmetrically assembled in the slot with respect to the center of the cavity, and the counterweights are fixedly abutted against the slot and the inner wall of the cover plate; The connecting pieces are symmetrically arranged on both sides of the load block.

2. The plug-in load model according to claim 1, characterized in that: A groove is provided on the outer edge of a side of the cover plate that contacts the shell, and a protrusion matching the groove is provided on the outer edge of the shell opening.

3. The plug-in load model according to claim 2, characterized in that: The outer edge of the groove is provided with a convex stop, and the outer edge of the protrusion is provided with a concave stop matching the convex stop.

4. The plug-in load model according to claim 1, characterized in that: A plurality of fasteners are arranged between the cover plate and the edge of the shell opening.

5. The plug-in load model according to claim 1, characterized in that: The counterweight piece is a counterweight piece with a cross section in the shape of a ring, a circle or a regular polygon.

6. The plug-in load model according to claim 5, characterized in that: The isolating member is an annular isolating member, and the annular isolating member is spaced apart from the center of the cavity toward the outer periphery. The counterweight member is an annular counterweight member or a circular counterweight member with a cross section.

7. The plug-in load model according to claim 5, characterized in that: The isolating member is a plate-shaped isolating member, and the plate-shaped isolating member is evenly spaced from the center of the cavity along one direction to both sides. The counterweight member is a counterweight member with a circular cross section or a regular polygonal counterweight member.

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