Positioning jig for rhombic prism assembly

Abstract

The positioning jig comprises a base, a clamping seat and a limiting plate, the base is provided with a top seat of a vertical sliding block, the base is provided with a vertical adjusting device for driving the top seat to move vertically, and the clamping seat is arranged on the base. The clamping seat comprises a fixed seat fixedly arranged on the upper wall of the top seat and an adjusting seat slidably installed on the upper wall of the top seat, the adjusting seat can move between the position close to the fixed seat and the position away from the fixed seat, and the limiting plate is slidably installed at the upper end of the clamping groove and can abut against one side of the rhombic prism. The clamping groove is defined through relative movement of the fixing base and the adjusting base so that the two parallel side walls of the rhombic prism can be positioned, when the optical filter is located above the rhombic prism, the rhombic prism is driven by the vertical adjusting device to ascend and be connected with the optical filter, and then optical filter assembly of the rhombic prism is achieved. And the positioning jig is simple in structure, and the assembling efficiency of the optical filter is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of optical product processing equipment, in particular to a positioning fixture used for assembling rhombic prisms. Background Art

[0002] At present, there are two main methods of laminating oblique prisms: manual lamination and automatic lamination. Manual lamination requires the use of tweezers to clamp the filters one by one, which is inefficient and easy to damage and dirty the filters. For some automatic lamination machines, the filters need to be manually clamped into the fixture, which also has the problem of low efficiency of manually laminating one by one.

[0003] However, due to the problem of the special-shaped structure of the oblique prism, if there is a deviation in the position during installation, it is easy to cause the filter to be out of position, affecting the fitting accuracy. Utility Model Content

[0004] The main purpose of the utility model is to provide a positioning fixture for assembling rhombic prisms, aiming to facilitate the positioning of products, effectively reduce film pasting errors, and improve pasting accuracy.

[0005] To achieve the above object, the utility model provides a positioning fixture for assembling rhombic prisms, comprising:

[0006] A base, wherein the base is provided with a top seat of a vertical slider, and the base is provided with a vertical adjustment device for driving the top seat to move vertically;

[0007] A clamping seat, the clamping seat comprising a fixed seat fixedly arranged on the upper wall of the top seat and an adjusting seat slidably installed on the upper wall of the top seat, the adjusting seat can move between a position close to the fixed seat and a position away from the fixed seat, and a clamping groove for placing the rhombus prism is formed between the fixed seat and the adjusting seat;

[0008] The limiting plate is slidably mounted on the upper end of the clamping groove and can abut against one side of the rhombus prism.

[0009] In actual work, the technical solution of the utility model forms a clamping groove through the relative movement of the fixed seat and the adjustment seat to position the two parallel side walls of the rhombus prism. At the same time, the position of the limit plate is moved to position the two ends of the rhombus prism. When the filter is located above the rhombus prism, the rhombus prism is driven by the vertical adjustment device to rise and align with the filter, thereby realizing the filter assembly of the rhombus prism. The positioning fixture has a simple structure and effectively improves the assembly efficiency of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0011] Figure 2This utility model is cut away Figure 1 ;

[0012] Figure 3 This utility model is cut away Figure 2 ;

[0013] Figure 4 This is a three-dimensional schematic diagram after hiding some of the structures.

[0014] In the figure, 5 is a base, 51 is a top seat, 52 is a guide hole, 53 is a guide column, 61 is a fixed seat, 62 is an adjusting seat, 7 is a cam, 70 is an adjusting screw, 71 is a first guide surface, 72 is a second guide surface, 8 is a limit seat, 81 is a limit groove, 9 is an elastic member, 91 is a sleeve shaft hole, 92 is a sleeve shaft, 100 is a filter, and 200 is an oblique prism. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0017] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0018] like Figures 1 to 4 As shown, a positioning fixture for assembling rhombic prisms comprises:

[0019] A base 5, wherein the base 5 is provided with a top seat 51 of a vertical slider, and the base 5 is provided with a vertical adjustment device for driving the top seat 51 to move vertically;

[0020] A clamping seat, the clamping seat includes a fixed seat 61 fixedly arranged on the upper wall of the top seat 51 and an adjusting seat 62 slidably installed on the upper wall of the top seat 51, the adjusting seat 62 can move between a position close to the fixed seat 61 and a position away from the fixed seat 61, and a clamping groove for placing the rhombus prism is formed between the fixed seat 61 and the adjusting seat 62;

[0021] The limiting plate is slidably mounted on the upper end of the clamping groove and can abut against one side of the rhombus prism.

[0022] In actual work, the clamping groove is formed by the relative movement of the fixed seat 61 and the adjustment seat 62 to position the two parallel side walls of the rhombus prism. At the same time, the position of the limit plate is moved to position the two ends of the rhombus prism. When the filter is located above the rhombus prism, the rhombus prism is driven by the vertical adjustment device to rise and align with the filter, thereby realizing the filter assembly of the rhombus prism. The positioning fixture has a simple structure and effectively improves the assembly efficiency of the filter.

[0023] Specifically, the base 5 is provided with a guide hole, and the top seat 51 is provided with a guide column 53 matched with the guide hole.

[0024] In an embodiment of the utility model, the vertical adjustment device includes a cam 7 provided with a first guide surface 71 and a second guide surface, and an adjusting screw. The cam 7 is pivotally mounted in the base 5, and the end of the adjusting screw is provided with abutment against the first guide surface 71, and one of the guide columns 53 is abutted against the second guide surface.

[0025] When the adjusting screw drives the cam 7 to rotate, the cam 7 swings and drives the second guide surface to abut against the guide column 53, and drives it to move; in the specific structure, the pivot shaft of the cam 7 is provided with a spring, and of course the adjusting screw and the guide column 53 can also be provided with springs respectively to facilitate resetting.

[0026] Of course, in the specific structure, the structure is mainly manual, and the screw can also be adjusted to connect the rotating motor;

[0027] Of course, the height adjustment of the top seat 51 can also be achieved by using the cooperation of a ball screw and a screw nut.

[0028] Specifically, the angle between the first guide surface 71 and the second guide surface 72 is 90 degrees, that is, the horizontal movement is converted into the vertical movement.

[0029] In the embodiment of the utility model, the top seat 51 extends downwardly to a limit seat 8, the limit seat 8 is provided with a limit groove 81, and the base 5 is provided with a limit rod matched with the limit groove 81 for limiting the rising stroke height of the rhombus prism.

[0030] Furthermore, the adjustment seat 62 is provided with a sleeve shaft hole 91, and the fixed seat 61 is provided with a guide shaft 92 that matches the sleeve shaft hole 91. The guide shaft passes through the sleeve shaft hole 91 and is provided with a clamping portion. An elastic member 9 is provided between the clamping portion and the adjustment seat 62. The elastic member 9 can apply an elastic force to the adjustment seat 62 to move toward the fixed seat 61, thereby achieving clamping of the rhombic prism. The elastic clamping of the product is achieved by the provision of the elastic member 9, thereby avoiding damage to the product.

[0031] In the embodiment of the utility model, the elastic member 9 is a top spring.

[0032] Specifically, the adjusting screw is provided with a scale.

[0033] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A positioning fixture for assembling rhombic prisms, characterized in that: include: A base, wherein the base is provided with a top seat of a vertical slider, and the base is provided with a vertical adjustment device for driving the top seat to move vertically; A clamping seat, the clamping seat comprising a fixed seat fixedly arranged on the upper wall of the top seat and an adjusting seat slidably installed on the upper wall of the top seat, the adjusting seat can move between a position close to the fixed seat and a position away from the fixed seat, and a clamping groove for placing the rhombus prism is formed between the fixed seat and the adjusting seat; The limiting plate is slidably mounted on the upper end of the clamping groove and can abut against one side of the rhombus prism.

2. The positioning fixture for assembling rhombic prisms according to claim 1, characterized in that: The base is provided with a guide hole, and the top seat is provided with a guide column matched with the guide hole.

3. The positioning fixture for rhombus prism assembly according to claim 2, characterized in that: The vertical adjustment device includes a cam provided with a first guide surface and a second guide surface and an adjustment screw, wherein the cam is pivotally mounted in a base, and an end of the adjustment screw is provided to abut against the first guide surface, wherein one guide column abuts against the second guide surface.

4. The positioning fixture for rhombus prism assembly according to claim 3, characterized in that: The included angle between the first guide surface and the second guide surface is 90 degrees.

5. The positioning fixture for rhombus prism assembly according to claim 1, characterized in that: The top seat is downwardly extended with a limiting seat, the limiting seat is provided with a limiting groove, and the base is provided with a limiting rod matched with the limiting groove.

6. The positioning fixture for assembling rhombic prisms according to claim 1, characterized in that: The adjusting seat is provided with a sleeve shaft hole, the fixing seat is provided with a guide shaft matching with the sleeve shaft hole, the guide shaft passes through the sleeve shaft hole and is provided with a clamping part, an elastic member is provided between the clamping part and the adjusting seat, and the elastic member can apply an elastic force to the adjusting seat to move toward the fixing seat.

7. The positioning fixture for assembling rhombic prisms according to claim 6, characterized in that: The elastic member is a top spring.

8. The positioning fixture for assembling rhombic prisms according to claim 3, characterized in that: The adjusting screw is provided with a scale.

Images