Positioning device for projector imaging test

Abstract

The utility model discloses a positioning device for a projector imaging test, and belongs to the technical field of projector test equipment. Comprising a first transfer platform, a second transfer platform and a displacement driving mechanism, a first-stage driver capable of driving the second transfer platform to rotate along a first central axis is arranged on the first transfer platform, a first-stage rotary table is rotationally connected to the second transfer platform along a second central axis, a second-stage rotary table is rotationally connected to the first-stage rotary table along a third central axis, and a positioning clamp capable of fixing a projector is arranged on the second-stage rotary table; the second transfer platform is provided with a second-stage drive capable of driving the first-stage rotary table to rotate, and the first-stage rotary table is provided with a third-stage drive capable of driving the second-stage rotary table to rotate. According to the positioning device for the projector imaging test, a positioning clamp with a projector can be rapidly and accurately adjusted to a specific inclination angle and position, so that the test efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of projector testing equipment, and in particular relates to a positioning device for projector imaging testing. Background Art

[0002] During the production process of projectors, their imaging quality needs to be tested. During this testing process, ensuring that the projector is stably and accurately positioned is crucial for obtaining accurate test results. However, existing positioning fixtures often require manual operation to adjust to specific positions. This process is relatively cumbersome and often results in inaccurate positioning and awkward adjustment, which affects test efficiency and accuracy. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a positioning device for projector imaging testing, which can quickly and accurately adjust the projector positioning fixture to a specific tilt angle and position, thereby effectively improving the testing efficiency.

[0004] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a positioning device for projector imaging testing, comprising a first transfer platform, a second transfer platform, and a displacement drive mechanism capable of driving the first transfer platform to move horizontally and lift vertically;

[0005] The first transfer platform is provided with a primary drive capable of driving the second transfer platform to rotate along the first central axis; the second transfer platform is connected to a primary turntable rotatably along the second central axis; the primary turntable is connected to a secondary turntable rotatably along the third central axis; the secondary turntable is provided with a positioning fixture capable of fixing the projector;

[0006] The first central axis, the second central axis, and the third central axis are perpendicular to each other, and the first central axis is arranged along the vertical direction;

[0007] The second transfer platform is provided with a secondary drive capable of driving the primary turntable to rotate, and the primary turntable is provided with a tertiary drive capable of driving the secondary turntable to rotate.

[0008] Optionally, the displacement drive mechanism includes a primary slide and a secondary slide slidably connected to the primary slide, the secondary slide is slidably connected to a third slide, and the third slide is provided with a screw lifting module capable of driving the first transfer platform to move up and down in a vertical direction;

[0009] The first-stage slide is provided with a first drive capable of driving the second-stage slide to move along a first direction, and the second-stage slide is provided with a second drive capable of driving the third-stage slide to move along a second direction;

[0010] The first direction and the second direction are both perpendicular to the lifting direction of the first transfer platform, and the first direction and the second direction are perpendicular to each other.

[0011] Optionally, the positioning fixture includes a contoured seat arranged on the secondary turntable, the contoured seat is provided with a contoured groove capable of embedding the projector, and the contoured seat is provided with a limiting hoop capable of pressing down on the projector.

[0012] Optionally, the first central axis is parallel to the lifting direction of the first transfer platform, the second central axis is parallel to the first direction, and the third central axis is parallel to the second direction.

[0013] Optionally, the first drive and the second drive are screw slides.

[0014] Optionally, the first-level slide and the second-level slide, and the second-level slide and the third-level slide are slidably connected via linear guide rails.

[0015] Optionally, a harmonic reducer installed on the primary drive output shaft is provided between the first transfer platform and the second transfer platform.

[0016] Compared with the existing technology, the beneficial effects achieved by the present invention are as follows: a multi-axis drive system is formed between the displacement drive mechanism and the first, second, and third drive. Within the travel range of the first, second, and third drive modules, the positioning fixture can be driven to move in any direction in the spatial rectangular coordinate system; within the travel range of the first, second, and third drive modules, the positioning fixture can also be driven to deflect to any angle. Through the coordinated operation of the displacement drive mechanism, the first, second, and third drive modules, the positioning fixture can be quickly adjusted to a specific tilt angle and position. The operation is simple, the positioning is accurate, and the testing efficiency can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a structural diagram of a positioning device for projector imaging testing in a preferred embodiment of the present utility model;

[0019] Figure 2 This is a side structural diagram of a positioning device for projector imaging testing in a preferred embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of a preferred embodiment of the present invention when the secondary drive and the tertiary drive are installed on the first transfer platform and the second intermediate installation platform;

[0021] Figure 4 This is a structural diagram of a preferred embodiment of the present invention in which a primary drive and a harmonic reducer are installed on a first transfer platform;

[0022] Among them, 1. First transfer platform; 2. Second transfer platform; 3. Primary drive; 4. Primary turntable; 5. Secondary turntable; 6. Positioning fixture; 601. Contour seat; 602. Limiting hoop; 7. Secondary drive; 8. Third-stage drive; 9. Primary slide; 10. Secondary slide; 11. Third-stage slide; 12. Screw lifting module; 13. First drive; 14. Secondary drive; 15. Linear guide; 16. Harmonic reducer. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0024] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] like Figure 1-Figure 4 As shown, a positioning device for projector imaging testing includes a first transfer platform 1, a second transfer platform 2, and a displacement drive mechanism capable of driving the first transfer platform 1 to move horizontally and lift vertically;

[0026] The first transfer platform 1 is provided with a primary drive 3 capable of driving the second transfer platform 2 to rotate along the first central axis. The second transfer platform 2 is connected to a primary turntable 4 for rotation along the second central axis. The primary turntable 4 is connected to a secondary turntable 5 for rotation along the third central axis. The secondary turntable 5 is provided with a positioning fixture 6 capable of fixing the projector.

[0027] The first central axis, the second central axis, and the third central axis are perpendicular to each other, and the first central axis is arranged along the vertical direction;

[0028] The second transfer platform 2 is provided with a secondary drive 7 capable of driving the primary turntable 4 to rotate, and the primary turntable 4 is provided with a tertiary drive 8 capable of driving the secondary turntable 5 to rotate.

[0029] Specifically, the first central axis, the second central axis, and the third central axis in the present technical solution correspond to the Z axis, the X axis, and the Y axis in the spatial rectangular coordinate system, respectively, that is, in the coordinate system, the first central axis corresponds to, including but not limited to, any straight line parallel to the Z axis, the second central axis corresponds to, including but not limited to, any straight line parallel to the X axis, and the third central axis corresponds to, including but not limited to, any straight line parallel to the Y axis. In the present technical solution, the overall horizontal movement and vertical lifting of the positioning fixture 6 are achieved through a displacement drive mechanism, and the multi-angle deflection of the positioning fixture 6 is achieved through a primary drive 3, a secondary drive 7, and a tertiary drive 8. Through the coordination of the displacement drive mechanism, the primary drive 3, the secondary drive 7, and the tertiary drive 8, the positioning fixture 6 can be quickly adjusted to a specific tilt angle and position, with simple operation and accurate positioning, which can effectively improve the test efficiency.

[0030] As described above, preferably, in this technical solution, the primary drive 3, the secondary drive 7, and the tertiary drive 8 can be selected from servo motors in the prior art. The servo motors can control the rotation speed of the second transfer platform 2, the primary turntable 4, and the secondary turntable 5. The servo motors have high precision in controlling their deflection angles and can convert voltage signals into torque and speed to drive the controlled objects, enabling rapid and accurate responses. Specifically, the output shafts on the servo motors can be directly connected to the second transfer platform 2, the primary turntable 4, and the secondary turntable 5, or connected via a chain drive, belt drive, gear drive, or the like.

[0031] Further, such as Figure 1 As shown, the displacement drive mechanism includes a first-level slide 9 and a second-level slide 10 slidably connected to the first-level slide 9, a third-level slide 11 is slidably connected to the second-level slide 10, and the third-level slide 11 is provided with a screw lifting module 12 that can drive the first transfer platform 1 to move up and down in the vertical direction; the first-level slide 9 is provided with a first drive 13 that can drive the second-level slide 10 to move in the first direction, and the second slide 10 is provided with a second drive 14 that can drive the third-level slide 11 to move in the second direction; the first direction and the second direction are both perpendicular to the lifting direction of the first transfer platform 1, and the first direction and the second direction are perpendicular to each other.

[0032] Specifically, the first direction and the second direction correspond to the X-axis and the Y-axis in the spatial rectangular coordinate system, respectively. That is, the first direction includes the positive and negative directions of the X-axis, and the second direction includes the positive and negative directions of the Y-axis. At the same time, the direction in which the screw lifting module 12 drives the first transfer platform 1 to rise and fall corresponds to the Z-axis in the spatial rectangular coordinate system, that is, including the positive and negative directions of the Z-axis.

[0033] In the above technical solution, the screw lifting module 12 is an existing technology, which is a screw lifter, screw slide, etc. in the existing technology. It has high precision and also has a self-locking function.

[0034] Further, such as Figure 2 As shown, the positioning fixture 6 includes a contoured seat 601 disposed on the secondary turntable 5. The contoured seat 601 is provided with a contoured groove in which the projector can be embedded, and a limiting hoop 602 is provided on the contoured seat 601, which can be pressed down on the projector. The contoured groove can initially limit and locate the position of the projector on the contoured seat 601. The limiting hoop 602 can be connected to the contoured seat 601 via fasteners such as bolts and buckles. When the limiting hoop 602 is fixedly connected to the contoured seat 601, it can cooperate with the contoured groove to completely limit and fix the position of the projector, thereby ensuring that the projector is uniquely placed on the contoured seat 601.

[0035] In this embodiment, the first central axis is parallel to the lifting direction of the first transfer platform 1, the second central axis is parallel to the first direction, and the third central axis is parallel to the second direction. This results in a multi-axis drive system formed between the displacement drive mechanism and the primary drive 3, the secondary drive 7, and the tertiary drive 8. Within the travel range of the first drive 13, the second drive 14, and the lead screw lifting module 12, the positioning fixture 6 can be driven to move in any direction in the spatial rectangular coordinate system; within the travel range of the primary drive 3, the secondary drive 7, and the tertiary drive 8, the positioning fixture 6 can also be driven to deflect to any angle.

[0036] Further, such as Figure 1 As shown, in order to further improve the accuracy and stability of the secondary slide 10 and the tertiary slide 11 during movement, the first drive 13 and the second drive 14 are screw slides, which have a certain self-locking function. When the positioning fixture 6 moves to a specific position, the position locking can be used to ensure the stability of the positioning fixture 6. At the same time, the primary slide 9 and the secondary slide 10, and the secondary slide 10 and the tertiary slide 11 are slidably connected by linear guide rails 15 to improve the stability of the positioning fixture 6 during movement and stagnation.

[0037] Furthermore, a harmonic reducer 16, mounted on the output shaft of the primary drive 3, is installed between the first transfer platform 1 and the second transfer platform 2. In this technical solution, the output shaft of the primary drive 3 needs to bear a certain amount of gravity, so the harmonic reducer 16 is added. The harmonic reducer 16 can reduce speed while increasing torque, ensuring that the primary drive 3 can reliably complete its task. Furthermore, the harmonic reducer 16 effectively ensures positioning accuracy and repeatability when repeatedly performing the same action.

[0038] Working principle: A multi-axis drive system is formed between the lead screw lifting module 12, the first drive 13, the second drive 14 and the primary drive 3, the secondary drive 7, and the tertiary drive 8. Within the travel range of the first drive 13, the second drive 14 and the lead screw lifting module 12, the positioning fixture 6 can be driven to move in any direction in the spatial rectangular coordinate system; within the travel range of the primary drive 3, the secondary drive 7, and the tertiary drive 8, the positioning fixture 6 can also be driven to deflect to any angle. Through the coordinated operation between the lead screw lifting module 12, the first drive 13, the second drive 14, the primary drive 3, the secondary drive 7, and the tertiary drive 8, the positioning fixture 6 can be quickly adjusted to a specific tilt angle and position. The operation is simple, the positioning is accurate, and the test efficiency can be effectively improved.

[0039] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A positioning device for projector imaging testing, characterized in that: It comprises a first transfer platform (1), a second transfer platform (2), and a displacement drive mechanism capable of driving the first transfer platform (1) to move horizontally and to lift vertically; The first transfer platform (1) is provided with a first-stage drive (3) capable of driving the second transfer platform (2) to rotate along a first central axis; the second transfer platform (2) is connected to a first-stage turntable (4) for rotation along a second central axis; the first-stage turntable (4) is connected to a second-stage turntable (5) for rotation along a third central axis; the second-stage turntable (5) is provided with a positioning fixture (6) capable of fixing a projector; The first central axis, the second central axis, and the third central axis are perpendicular to each other, and the first central axis is arranged along the vertical direction; The second transfer platform (2) is provided with a secondary drive (7) capable of driving the primary turntable (4) to rotate, and the primary turntable (4) is provided with a tertiary drive (8) capable of driving the secondary turntable (5) to rotate.

2. The positioning device for projector imaging testing according to claim 1, characterized in that: The displacement drive mechanism comprises a primary slide (9) and a secondary slide (10) slidably connected to the primary slide (9); a third slide (11) is slidably connected to the secondary slide (10); and a lead screw lifting module (12) is provided on the third slide (11) capable of driving the first transfer platform (1) to move up and down in a vertical direction; The first-stage slide (9) is provided with a first drive (13) capable of driving the second-stage slide (10) to move along a first direction, and the second-stage slide (10) is provided with a second drive (14) capable of driving the third-stage slide (11) to move along a second direction; The first direction and the second direction are both perpendicular to the lifting direction of the first transfer platform (1), and the first direction and the second direction are perpendicular to each other.

3. The positioning device for projector imaging testing according to claim 1, wherein: The positioning fixture (6) comprises a contour seat (601) arranged on the secondary turntable (5), the contour seat (601) being provided with a contour groove capable of embedding a projector, and the contour seat (601) being provided with a limiting hoop (602) capable of pressing down on the projector.

4. The positioning device for projector imaging testing according to claim 2, wherein: The first central axis is parallel to the lifting direction of the first transfer platform (1), the second central axis is parallel to the first direction, and the third central axis is parallel to the second direction.

5. The positioning device for projector imaging testing according to claim 2, wherein: The first drive (13) and the second drive (14) are screw slides.

6. The positioning device for projector imaging testing according to claim 2, characterized in that: The first-level slide (9) and the second-level slide (10), and the second-level slide (10) and the third-level slide (11) are slidably connected via linear guide rails (15).

7. The positioning device for projector imaging testing according to claim 1, characterized in that: A harmonic reducer (16) mounted on the output shaft of the primary drive (3) is provided between the first transfer platform (1) and the second transfer platform (2).

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