CN-116749114-B - Assembly fixture

CN116749114BCN 116749114 BCN116749114 BCN 116749114BCN-116749114-B

Abstract

The invention discloses an assembly fixture which is used for assembling a projector. The assembling tool comprises a base and a positioning mechanism, wherein the base is provided with an assembling surface, the assembling surface is provided with a profiling groove for placing a light machine main body, the positioning mechanism is arranged on the assembling surface and is provided with push heads, the push heads are provided with positioning surfaces and can move towards or away from the upper side of the profiling groove so as to have a first position and a second position, the push heads are provided with at least two positioning surfaces, the positioning surfaces of the at least two push heads are arranged at an included angle, when the push heads are arranged at the first position, the positioning surfaces of the at least two push heads are positioned above the profiling groove and are used for abutting two sides adjacent to a prism so as to position the prism, and when the push heads are arranged at the second position, the positioning surfaces of the at least two push heads are respectively arranged at two sides adjacent to the profiling groove so as to avoid the light machine main body. The technical scheme of the invention can improve the assembly precision of the prism so as to solve the problems of poor optical collimation and low analytic performance of the projector.

Inventors

WANG ZERAN
HU XIFENG
LI XIAOLIANG
LIU XIAODONG
YU ZHIYONG

Assignees

歌尔光学科技有限公司

Dates

Publication Date: 20260512
Application Date: 20230706

Claims (11)

1. An assembly fixture for assembling a projector, the projector comprising a light machine body and a prism, the assembly fixture comprising: the base is provided with an assembling surface, the assembling surface is provided with a profiling groove, and the profiling groove is used for placing the optical machine main body; The positioning mechanism is arranged on the assembly surface and provided with a push head, and the push head is provided with a positioning surface and can move towards or away from the upper part of the imitation groove so as to have a first position and a second position; the optical machine comprises a profiling groove, a prism, a push head, a pair of push heads, a pair of optical machine main bodies, a pair of push heads and a pair of guide rails, wherein when the push heads are in a first position, the positioning surfaces of at least two push heads are positioned above the profiling groove and are used for abutting against two sides adjacent to the prism so as to position the prism; And when the push heads move to the second position, the prism takes the positioning surfaces of at least two push heads as reference surfaces, so that the prism is placed on the glue dispensing position of the optical machine main body.
2. The assembly fixture of claim 1, wherein the pusher comprises: A push rod which can slide relative to the base to move towards or away from the upper side of the imitation groove; the positioning head is connected to one end of the push rod and is provided with the positioning surface.
3. The assembly fixture of claim 2, wherein the positioning head comprises a connecting portion connected to the push rod and a buffer portion connected to a side of the connecting portion remote from the push rod and having the positioning surface.
4. The assembly fixture of claim 1, wherein the movement directions of at least two of the push heads are arranged at an included angle; and/or the assembly surface is provided with at least two sliding rails, the push heads further comprise sliding blocks, and the sliding blocks of each push head are in sliding fit with one sliding rail.
5. The assembly fixture of claim 1, further comprising a lower cover plate rotatably connected to the base to open the notch of the profile groove or to close at least a portion of the notch of the profile groove; When the lower cover plate closes at least part of the notch of the imitation groove, the lower cover plate is used for pressing the optical machine main body and avoiding the prism.
6. The assembly fixture of claim 5, wherein the assembly surface is provided with a first buckle, one side of the lower cover plate is provided with a first clamping groove, and the first buckle is clamped in the first clamping groove when the lower cover plate closes at least part of the notch of the imitation groove; And/or, the assembly surface is provided with limiting bosses which are arranged at intervals with the profiling grooves, and when the lower cover plate closes the notch of at least part of the profiling grooves, the lower cover plate is abutted with the table top of the limiting bosses.
7. The assembly fixture of claim 5, wherein the lower cover plate is provided with a first pressing member extending toward the profiling groove, and the first pressing member is used for pressing the optical machine body when the lower cover plate closes at least part of the notch of the profiling groove.
8. The assembly fixture of claim 7, wherein the first pressing member is slidable relative to the lower cover plate, and a sliding direction of the first pressing member is disposed at an angle with a moving direction of the push head.
9. The assembly fixture of claim 5, further comprising an upper cover plate rotatably connected to the base for compressing or releasing the lower cover plate, wherein a second compressing member extending toward the profiling groove is arranged on one side of the upper cover plate; And when the upper cover plate compresses the lower cover plate, the second compressing piece is used for compressing the prism.
10. The assembly fixture of claim 9, wherein the assembly surface is provided with a second buckle, one side of the upper cover plate is provided with a second clamping groove, and the second buckle is clamped in the second clamping groove when the upper cover plate presses the lower cover plate.
11. The assembly fixture of any one of claims 1 to 10, wherein a guide pin is disposed in the profiling groove, the optical machine body has a guide hole, and the optical machine body is configured to guide into the profiling groove under the cooperation of the guide pin and the guide hole.

Description

Assembly fixture Technical Field The invention relates to the technical field of projector assembly equipment, in particular to an assembly fixture. Background DLP (DIGITAL LIGHT Procession, digital light processing) projectors require that the prisms be assembled to corresponding positions on the optical engine body during the assembly process. In the related art, after the optical machine main body is positioned at the corresponding position of the tooling, dispensing is performed on the dispensing position of the optical machine main body, then a prism is placed on the dispensing position of the optical machine main body in a manual mode, after the glue is solidified, the prism can be assembled on the optical machine main body, but when the prism is placed on the dispensing position of the optical machine main body in a manual mode, the assembly precision of the prism is difficult to ensure, so that the optical collimation difference and the analysis performance of a projector are low. Disclosure of Invention The invention mainly aims to provide an assembly tool, which aims to improve the assembly precision of a prism and solve the problems of poor optical collimation and low analytic performance of a projector. In order to achieve the above object, the present invention provides an assembly fixture for assembling a projector, the projector includes a light machine main body and a prism, the assembly fixture includes: the base is provided with an assembling surface, the assembling surface is provided with a profiling groove, and the profiling groove is used for placing the optical machine main body; The positioning mechanism is arranged on the assembly surface and provided with a push head, and the push head is provided with a positioning surface and can move towards or away from the upper part of the imitation groove so as to have a first position and a second position; The optical machine comprises a profiling groove, a prism, a push head, a profiling groove, a pair of push heads, a pair of optical machine main bodies, a pair of push heads and a pair of optical machine main bodies, wherein the push heads are arranged at the first position, the positioning surfaces of the push heads are arranged above the profiling groove and are used for abutting two sides adjacent to the prism so as to position the prism, and the push heads are arranged at the second position, and the positioning surfaces of the push heads are respectively arranged at two sides adjacent to the profiling groove and are used for avoiding the optical machine main bodies. In an embodiment of the invention, the push head comprises: A push rod which can slide relative to the base to move towards or away from the upper side of the imitation groove; the positioning head is connected to one end of the push rod and is provided with the positioning surface. In an embodiment of the invention, the positioning head includes a connecting portion connected to the push rod and a buffer portion connected to a side of the connecting portion away from the push rod and having the positioning surface. In an embodiment of the present invention, at least two of the moving directions of the pushing heads form an included angle; and/or the assembly surface is provided with at least two sliding rails, the push heads further comprise sliding blocks, and the sliding blocks of each push head are in sliding fit with one sliding rail. In an embodiment of the invention, the assembly fixture further includes a lower cover plate rotatably connected to the base to open the notch of the profiling groove or close at least part of the notch of the profiling groove; When the lower cover plate closes at least part of the notch of the imitation groove, the lower cover plate is used for pressing the optical machine main body and avoiding the prism. In an embodiment of the invention, the assembly surface is provided with a first buckle, one side of the lower cover plate is provided with a first clamping groove, and when the lower cover plate closes at least part of the notch of the imitation groove, the first buckle is clamped in the first clamping groove; And/or, the assembly surface is provided with limiting bosses which are arranged at intervals with the profiling grooves, and when the lower cover plate closes the notch of at least part of the profiling grooves, the lower cover plate is abutted with the table top of the limiting bosses. In an embodiment of the invention, the lower cover plate is provided with a first pressing piece extending towards the profiling groove, and the first pressing piece is used for pressing the optical machine main body when the lower cover plate closes at least part of the notch of the profiling groove. In an embodiment of the invention, the first pressing member may slide relative to the lower cover plate, and a sliding direction of the first pressing member and a moving direction of the push head form an included angle. In an embodiment of th