Positioning device

Abstract

The utility model belongs to the technical field of lens production, and discloses a positioning device, a positioning jig comprises a positioning jig, a pressing and attaching assembly, an elbow clamp and a bearing jig, and the positioning jig is provided with a mounting groove; the pressing-attaching assembly is slidably mounted on the positioning jig, and a first inclined plane is arranged on the side, away from the mounting groove, of the pressing-attaching assembly; the toggle clamp is mounted on the positioning jig; the bearing jig is arranged between the positioning jig and the toggle clamp, the bearing jig is provided with a pushing block, the pushing block is located on the side, away from the mounting groove, of the pressing and attaching assembly, the side, facing the first inclined face, of the pushing block is provided with a second inclined face, and when the toggle clamp lifts the bearing jig, the second inclined face makes contact with the first inclined face, and the pushing block pushes the pressing and attaching assembly to the mounting groove. According to the positioning device, the pressing and attaching assembly is adopted for pressing the workpiece, and the workpiece can be prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of lens manufacturing technology, and in particular to a positioning device. Background Technology

[0002] During lens assembly, lens alignment is required to ensure image quality. Lens alignment involves placing the lens on a mounting base and then using an alignment mechanism. For example, patent application number 202420163645.6, entitled "Lens Alignment Device," describes an alignment device comprising a mounting base, an alignment mechanism, and a lifting mechanism. During alignment, the lens is placed on the mounting base, and the lifting mechanism lowers the alignment fixing plate of the alignment mechanism until the alignment fixing plate causes the main barrel retaining ring to press against the main barrel of the lens. The lens frame retaining ring then contacts the lens frame. The alignment lever is then adjusted to lower the alignment arm. This lowering of the alignment arm causes the lens frame retaining ring to move, causing the alignment claws of the lens frame to slide towards or away from the bottom of the alignment slot, thereby correcting the coaxiality of the alignment lens elements.

[0003] However, the stability of the lens mounting on the mount needs to be improved. When the main tube of the lens is mounted on the mount, one end of the main tube is inserted into the mounting hole of the mount, and the outer circumferential surface of the main tube abuts against the support wall of the mount. This positioning method cannot guarantee the stability of the main tube. Utility Model Content

[0004] The purpose of this invention is to provide a positioning device that uses a pressing component to press the workpiece and prevent it from loosening.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Positioning device, including:

[0007] The positioning fixture is equipped with a mounting slot;

[0008] The pressing assembly is slidably mounted on the positioning fixture, and the pressing assembly has a first inclined surface on the side opposite to the mounting groove;

[0009] Elbow clamp, mounted on the positioning fixture;

[0010] A support fixture is disposed between the positioning fixture and the elbow clamp. The support fixture is provided with a push block. The push block is located on the side of the pressing component away from the mounting groove. The side of the push block facing the first inclined surface is provided with a second inclined surface. When the elbow clamp lifts the support fixture, the second inclined surface contacts the first inclined surface, and the push block pushes the pressing component toward the mounting groove.

[0011] As an optional technical solution, the positioning fixture is provided with elbow clamps at all four corners, and the bearing fixture is supported on the four elbow clamps.

[0012] As an optional technical solution, the positioning fixture is provided with a support guide rod, the support guide rod is fitted with a linear bearing, and the linear bearing is installed on the bearing fixture.

[0013] As an optional technical solution, the support guide rod is fitted with a first spring, which is located between the positioning fixture and the bearing fixture. The first spring is used to push the bearing fixture away from the positioning fixture.

[0014] As an optional technical solution, the bottom of the positioning fixture is provided with a clearance groove. The positioning fixture includes a bearing wall located between the mounting groove and the clearance groove. The pressing assembly includes a pressure rod and a push plate. The pressure rod slides through the bearing wall. The push plate is fixedly connected to one end of the pressure rod that extends into the clearance groove. The first inclined surface is provided on the push plate.

[0015] As an optional technical solution, the pressure attachment assembly further includes a second spring, which is sleeved around the periphery of the pressure rod and located between the bearing wall and the push plate. The second spring is used to push the push plate and the pressure rod away from the mounting groove.

[0016] As an optional technical solution, the positioning fixture is provided with a limiting post, which penetrates the push plate and is arranged parallel to the pressure rod.

[0017] As an optional technical solution, the top wall of the clearance groove is provided with an opening facing the push block.

[0018] As an optional technical solution, the bearing fixture is provided with a strip-shaped positioning groove, which extends in a direction away from the mounting groove, and the threaded fastener passes through the strip-shaped positioning groove and is threadedly connected to the push block.

[0019] As an optional technical solution, the pressure attachment components are provided on both sides of the mounting groove.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a positioning device, which includes a positioning fixture, a pressing component, an elbow clamp, and a supporting fixture. The positioning fixture has a mounting groove. The pressing component is slidably installed in the positioning fixture, and a first inclined surface is provided on the side of the pressing component away from the mounting groove. The elbow clamp is installed in the positioning fixture. The supporting fixture is disposed between the positioning fixture and the elbow clamp. The supporting fixture has a pushing block, which is located on the side of the pressing component away from the mounting groove. A second inclined surface is provided on the side of the pushing block facing the first inclined surface. When the elbow clamp lifts the supporting fixture, the second inclined surface contacts the first inclined surface, and the pushing block pushes the pressing component towards the mounting groove.

[0022] When the workpiece is placed in the mounting slot, the support fixture supports the workpiece. At this time, the elbow clamp is moved, the elbow clamp lifts the support fixture, and the support fixture drives the push block to approach the positioning fixture. The second inclined surface contacts the first inclined surface, and the push block pushes the pressing component into the mounting slot, and the pressing component presses against the periphery of the workpiece. Attached Figure Description

[0023] Figure 1 This is a first-view structural schematic diagram of the positioning device of this utility model;

[0024] Figure 2 This is an exploded view from the first perspective of the positioning device of this utility model;

[0025] Figure 3 This is a second-view structural schematic diagram of the positioning device of this utility model;

[0026] Figure 4 This is an exploded view from a second perspective of the positioning device of this utility model;

[0027] Figure 5 This is a top sectional view of the positioning device of this utility model;

[0028] Figure 6 This is a front sectional view of the positioning device of this utility model.

[0029] In the picture:

[0030] 1. Positioning fixture; 11. Mounting groove; 12. Clearance groove; 13. Bearing wall; 14. Opening;

[0031] 2. Press-fit assembly; 21. Press rod; 22. Push plate; 221. First inclined surface;

[0032] 3. Elbow clamp;

[0033] 4. Support fixture; 41. Strip positioning groove;

[0034] 5. Push block; 51. Second inclined surface;

[0035] 6. Support guide rod;

[0036] 7. Linear bearings;

[0037] 8. Limiting post. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] like Figures 1 to 6As shown, this embodiment provides a positioning device, which includes a positioning fixture 1, a pressing component 2, an elbow clamp 3, and a supporting fixture 4. The positioning fixture 1 is provided with a mounting groove 11; the pressing component 2 is slidably installed on the positioning fixture 1, and the side of the pressing component 2 away from the mounting groove 11 is provided with a first inclined surface 221; the elbow clamp 3 is installed on the positioning fixture 1; the supporting fixture 4 is disposed between the positioning fixture 1 and the elbow clamp 3, and the supporting fixture 4 is provided with a pushing block 5. The pushing block 5 is located on the side of the pressing component 2 away from the mounting groove 11, and the side of the pushing block 5 facing the first inclined surface 221 is provided with a second inclined surface 51. When the elbow clamp 3 lifts the supporting fixture 4, the second inclined surface 51 contacts the first inclined surface 221, and the pushing block 5 pushes the pressing component 2 toward the mounting groove 11.

[0043] Specifically, when the workpiece is placed in the mounting groove 11, the supporting fixture 4 supports the workpiece. At this time, the elbow clamp 3 is moved, the elbow clamp 3 lifts the supporting fixture 4, and the supporting fixture 4 drives the pushing block 5 to approach the positioning fixture 1. The second inclined surface 51 contacts the first inclined surface 221, and the pushing block 5 pushes the pressing component 2 towards the mounting groove 11, and the pressing component 2 presses against the periphery of the workpiece.

[0044] The elbow clamp 3 is an existing structure, and its specific working principle will not be described in detail in this embodiment.

[0045] In this embodiment, the workpiece is a lens. The positioning device positions the lens to prevent it from shaking or shifting, thus facilitating the alignment of the lens by the alignment equipment. This positioning device can also be used to position other types of workpieces.

[0046] In this embodiment, elbow clamps 3 are provided at the four corners of the positioning fixture 1, and the bearing fixture 4 is supported on the four elbow clamps 3 to ensure the stability of the support for the bearing fixture 4.

[0047] Optionally, the positioning fixture 1 is provided with a support guide rod 6, and the support guide rod 6 is fitted with a linear bearing 7, which is installed on the bearing fixture 4.

[0048] The linear bearing 7 is fixedly connected to the bearing fixture 4. When the bearing fixture 4 approaches or moves away from the positioning fixture 1, the linear bearing 7 moves with the bearing fixture 4 to guide the bearing fixture 4 and prevent the bearing fixture 4 from deflecting.

[0049] Optionally, a first spring is sleeved on the support guide rod 6. The first spring is located between the positioning fixture 1 and the carrying fixture 4. The first spring is used to push the carrying fixture 4 away from the positioning fixture 1. When the carrying fixture 4 moves the pushing block 5 closer to the positioning fixture 1, the first spring is compressed and has elastic potential energy to restore its original shape. After the elbow clamp 3 is released, the carrying fixture 4 can generally fall back to its initial position using its own weight. However, in some special cases, such as when the flexibility of the elbow clamp 3 decreases or the elbow clamp 3 rusts, the carrying fixture 4 requires additional pushing force to fall. Therefore, this embodiment provides a first spring. The first spring has elastic potential energy to restore its original shape, so the first spring can push the carrying fixture 4 back to its initial position. The first spring is sleeved on the periphery of the support guide rod 6 to prevent the first spring from falling out of its installation position. The first spring is an existing component, and its specific structure is not shown.

[0050] Optionally, the bottom of the positioning fixture 1 is provided with a relief groove 12. The positioning fixture 1 includes a bearing wall 13 located between the mounting groove 11 and the relief groove 12. The pressing assembly 2 includes a pressing rod 21 and a push plate 22. The pressing rod 21 slides through the bearing wall 13. The push plate 22 is fixedly connected to one end of the pressing rod 21 that extends into the relief groove 12. The first inclined surface 221 is provided on the push plate 22.

[0051] The bearing wall 13 is provided with a sliding groove that connects the mounting groove 11 and the clearance groove 12, and the pressure rod 21 passes through the sliding groove; the push block 5 has a second inclined surface 51 at one end that extends into the clearance groove 12, and the second inclined surface 51 contacts the first inclined surface 221 in the clearance groove 12. The push plate 22 is pushed by the push block 5, and the push plate 22 pushes the pressure rod 21 toward the workpiece in the mounting groove 11, thereby pressing the workpiece.

[0052] Optionally, the pressing assembly 2 also includes a second spring, which is sleeved around the periphery of the pressing rod 21. The second spring is located between the bearing wall 13 and the push plate 22, and is used to push the push plate 22 and the pressing rod 21 away from the mounting groove 11.

[0053] When pusher block 5 pushes pusher plate 22 towards mounting slot 11, second spring is compressed. Second spring possesses elastic potential energy to restore its original shape. After elbow clamp 3 is released, second spring applies a pushing force to pusher plate 22 away from mounting slot 11. Pusher plate 22 drives pressure rod 21 to retract into the slide groove of bearing wall 13, facilitating the operator to remove workpieces and place the next workpiece into mounting slot 11, thereby improving workpiece assembly and disassembly efficiency. The second spring is an existing component; its specific structure is not shown here.

[0054] Optionally, the positioning fixture 1 is provided with a limiting post 8, which penetrates the push plate 22 and is arranged parallel to the pressure rod 21. The limiting post 8 supports and limits the push plate 22, preventing the push plate 22 from moving in the vertical direction.

[0055] Optionally, the top wall of the clearance groove 12 is provided with an opening 14 facing the push block 5. The opening 14 avoids the push block 5 and prevents it from blocking the rise of the push block 5.

[0056] Optionally, two push blocks 5 are provided on the same side of the push plate 22, and the two push blocks 5 push the push plate 22 synchronously.

[0057] Optionally, the support fixture 4 is provided with a strip-shaped positioning groove 41, which extends in a direction away from the mounting groove 11. The threaded fastener passes through the strip-shaped positioning groove 41 and is threadedly connected to the push block 5. The mounting position of the push block 5 on the support fixture 4 can be adjusted according to actual needs, so that the push block 5 is closer to or farther away from the mounting groove 11.

[0058] In this embodiment, pressing components 2 are provided on both sides of the mounting groove 11. The two sets of pressing components 2 press the workpiece from both sides, thereby improving the installation stability of the workpiece.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Positioning device, characterized in that The utility model provides a positioning jig, including: Positioning jig (1) is equipped with installation groove (11); Pressure attached component (2) is slidably installed in positioning jig (1), and the side, away from installation groove (11), of pressure attached component (2) is equipped with first inclined plane (221); Elbow clamp (3) is installed in positioning jig (1); Bearing jig (4) is arranged between positioning jig (1) and elbow clamp (3), and bearing jig (4) is equipped with push block (5), push block (5) is located at the side, away from installation groove (11), of pressure attached component (2), and the side, facing first inclined plane (221), of push block (5) is equipped with second inclined plane (51), when elbow clamp (3) lifts bearing jig (4), second inclined plane (51) contacts first inclined plane (221), and push block (5) pushes pressure attached component (2) to installation groove (11).

2. The positioning device of claim 1, wherein, Four corner positions of positioning jig (1) are all equipped with elbow clamp (3), and bearing jig (4) is carried on four elbow clamps (3).

3. The positioning device of claim 1, wherein, Positioning jig (1) is equipped with support guide rod (6), support guide rod (6) is sleeved with linear bearing (7), and linear bearing (7) is installed in bearing jig (4).

4. The positioning device of claim 3, wherein, Support guide rod (6) is sleeved with first spring, and first spring is located between positioning jig (1) and bearing jig (4), and first spring is used to push bearing jig (4) away from positioning jig (1).

5. The positioning device of claim 1, wherein, The bottom of the positioning jig (1) is provided with an avoiding groove (12), and the positioning jig (1) comprises a bearing wall (13) located between the installation groove (11) and the avoiding groove (12), the pressure attached component (2) comprises a pressing rod (21) and a push plate (22), the pressing rod (21) slides through the bearing wall (13), the push plate (22) is fixedly connected to one end of the pressing rod (21) extending into the avoiding groove (12), and the first inclined surface (221) is arranged on the push plate (22).

6. The positioning device of claim 5, wherein, The pressure attached component (2) further comprises a second spring, the second spring is sleeved on the periphery of the pressing rod (21), the second spring is located between the bearing wall (13) and the push plate (22), and the second spring is used to push the push plate (22) and the pressing rod (21) away from the installation groove (11).

7. The positioning device of claim 5, wherein, The positioning jig (1) is provided with a limiting column (8) penetrating through the push plate (22), and the limiting column (8) is arranged in parallel with the pressing rod (21).

8. The positioning device of claim 5, wherein, The top wall of the avoiding groove (12) is provided with an opening (14) facing the push block (5).

9. The positioning device of claim 1, wherein, The bearing jig (4) is provided with a strip-shaped positioning groove (41) extending away from the installation groove (11), and a threaded fastener is threadedly connected with the push block (5) after penetrating through the strip-shaped positioning groove (41).

10. The positioning device of claim 1, wherein, Both sides of the installation groove (11) are provided with the pressure attached component (2).

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