CN215617512U - Aligning device - Google Patents

Abstract

Disclosed is an aligning apparatus for aligning a first workpiece with a second workpiece, the aligning apparatus including: a base; the fixing table is fixedly connected with the base and used for fixing the first workpiece; the bearing table is arranged opposite to the fixed table and used for bearing the second workpiece; and the position adjusting mechanism is arranged on the base, is connected with the bearing table and is used for driving the bearing table to move on the plane where the bearing table is located relative to the base.

Description

Aligning device

Technical Field

The disclosure relates to the field of electronic product production, in particular to an aligning device.

Background

In the production and manufacturing process of electronic products, different parts of the electronic products need to be aligned, for example, in the manufacturing process of holographic metamaterial liquid crystal antennas, a metal waveguide needs to be accurately aligned with a liquid crystal panel.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to at least one of the problems of the prior art, and provides an alignment apparatus.

In order to achieve the above object, the present disclosure provides an aligning apparatus for aligning a first workpiece and a second workpiece, the aligning apparatus including:

a base;

the fixing table is fixedly connected with the base and used for fixing the first workpiece;

the bearing table is arranged opposite to the fixed table and used for bearing the second workpiece;

and the position adjusting mechanism is arranged on the base, is connected with the bearing table and is used for driving the bearing table to move on the plane where the bearing table is located relative to the base.

In some embodiments, the position adjustment mechanism comprises:

the first adjusting assembly is arranged on the base and used for driving the bearing table to linearly move along a first direction;

and/or the presence of a gas in the gas,

and the second adjusting assembly is arranged on the base and used for driving the bearing table to perform linear motion along a second direction, and the first direction is crossed with the second direction.

In some embodiments, the carrier stage has: the bearing surface and the bottom surface are arranged oppositely, and the side surface is connected between the bearing surface and the bottom surface;

the position adjustment mechanism includes the first adjustment assembly and the second adjustment assembly,

the first adjustment assembly includes: the side surface of the bearing table is provided with a first mounting hole, the base is provided with a first through hole corresponding to the first mounting hole, the first through hole and the first mounting hole are threaded holes matched with the first screw, and the rod part of the first screw penetrates through the first through hole and extends into the first mounting hole;

the second adjustment assembly includes: a second mounting hole is formed in the side face of the bearing table, a second through hole corresponding to the second mounting hole is formed in the base, the second through hole and the second mounting hole are threaded holes matched with the second screw, and the rod part of the second screw penetrates through the second through hole and extends into the second mounting hole;

wherein the first screw extends in the first direction and the second screw extends in the second direction.

In some embodiments, the position adjustment mechanism comprises: the first adjusting component, the second adjusting component, the third adjusting component, the first bearing plate and the second bearing plate, wherein,

the first bearing plate, the second bearing plate and the bearing table are sequentially arranged along the direction far away from the base;

the first adjusting assembly is arranged on the base and used for driving the first bearing plate to move relative to the base along the first direction so as to drive the bearing table to move relative to the base along the first direction;

the second adjusting assembly is arranged on the first bearing plate and used for driving the second bearing plate to move relative to the first bearing plate along the second direction so as to drive the bearing table to move relative to the base along the second direction;

the third adjusting assembly is arranged on the second bearing plate and used for driving the bearing table to rotate around a first axis relative to the second bearing plate, and the first axis extends along the thickness direction of the bearing table.

In some embodiments, the first adjustment assembly comprises:

the first mounting plate is arranged on the side surface of the base, and a first threaded hole is formed in the first mounting plate;

and the rod part of the third screw penetrates through the first threaded hole and extends into a second threaded hole in the first bearing plate, and the axial directions of the first threaded hole and the second threaded hole are both parallel to the first direction.

In some embodiments, the aligning device further comprises:

a first rail extending in the first direction;

the first sliding block is arranged on the first guide rail in a sliding mode;

one of the first guide rail and the first sliding block is fixed on the base, and the other one is fixed on the first bearing plate.

In some embodiments, the second adjustment assembly comprises:

the second mounting plate is arranged on the side surface of the first bearing plate, and a third threaded hole is formed in the second mounting plate;

and the rod part of the fourth screw penetrates through the third threaded hole and extends into a fourth threaded hole in the side surface of the second bearing plate, and the axial directions of the third threaded hole and the fourth threaded hole are parallel to the second direction.

In some embodiments, the aligning device further comprises:

a second rail extending in the second direction;

the second sliding block is arranged on the second guide rail in a sliding mode;

one of the second guide rail and the second slider is fixed to the first receiving plate, and the other is fixed to the second receiving plate.

In some embodiments, the carrier stage has: the bearing platform comprises a bearing surface, a bottom surface and a side surface, wherein the bearing surface and the bottom surface are arranged oppositely, the side surface is connected between the bearing surface and the bottom surface, and a convex block is arranged on the side surface of the bearing platform;

the third adjustment assembly includes:

the rotating shaft is fixedly connected with the second bearing plate and is rotationally connected with the bearing table, and the axis of the rotating shaft is used as a first axis;

and the pushing unit is arranged on the second bearing plate and used for pushing the bump so as to enable the bearing table to rotate around the first axis.

In some embodiments, the pushing unit includes:

the third mounting plate and the fourth mounting plate are arranged on the second bearing plate and are respectively positioned at two opposite sides of the lug, a fifth threaded hole is formed in the third mounting plate, a sixth threaded hole is formed in the fourth mounting plate, and an opening at one end of the fifth threaded hole and an opening at one end of the sixth threaded hole face the lug;

the head of the fifth screw is positioned on one side, far away from the lug, of the third mounting plate, and the rod part of the fifth screw penetrates through the fifth threaded hole;

and the head of the sixth screw is positioned on one side of the fourth mounting plate, which is far away from the lug, and the rod part of the sixth screw penetrates through the fifth threaded hole.

In some embodiments, the fixed station comprises:

the fixed table body is fixedly connected with the base;

and the fixing piece is arranged on the fixing table body and used for fixing the first workpiece.

In some embodiments, the aligning device further comprises:

a detection mechanism for detecting a relative position of the first workpiece and the second workpiece;

and the control mechanism is connected with the detection mechanism and used for providing power for the position adjusting mechanism according to the relative position of the first workpiece and the second workpiece so as to drive the bearing table to move under the power action of the control mechanism.

In some embodiments, the fixed stage is a frame-shaped structure, and the detection mechanism includes:

the image acquisition unit is arranged on one side, far away from the bearing table, of the fixing table and is used for acquiring images of the first workpiece and the second workpiece so as to detect the positions of the first workpiece and the second workpiece.

In some embodiments, the control mechanism comprises:

the control unit is connected with the detection mechanism and used for generating a driving signal according to the relative position of the first workpiece and the second workpiece;

and the driver is connected with the control unit and used for providing power for the adjusting mechanism according to the driving signal.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is an exploded view of an alignment device provided in some embodiments of the present disclosure.

Fig. 2A is a longitudinal sectional view of the aligning apparatus of fig. 1.

Fig. 2B is a schematic view of an alignment device and a first workpiece and a second workpiece provided in other embodiments of the disclosure.

Fig. 3 is a perspective view of an alignment device provided in other embodiments of the present disclosure.

Fig. 4 is a longitudinal cross-sectional view of the aligning apparatus of fig. 3, which is parallel to the first direction.

Fig. 5 is a longitudinal cross-sectional view of the aligning apparatus of fig. 3, which is parallel to the second direction.

Fig. 6 is an exploded view of the aligning apparatus of fig. 3.

Fig. 7 is a schematic view of an alignment device provided in other embodiments of the present disclosure.

Fig. 8 is a schematic diagram of a first alignment mark and a second alignment mark before and after alignment in some implementations of the present disclosure.

Fig. 9 is a schematic diagram of a first alignment mark and a second alignment mark before and after alignment in other embodiments of the disclosure.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

Unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 is an exploded view of an alignment device provided in some embodiments of the present disclosure, and fig. 2A is a longitudinal sectional view of the alignment device in fig. 1, which is used for aligning a first workpiece and a second workpiece. In some examples, the first workpiece may be a liquid crystal panel, the second workpiece may be a waveguide, the waveguide may be a metal waveguide, or a waveguide structure of a PCB substrate. In other examples, the first workpiece may be a display screen and the second workpiece may be a touch screen; or the first workpiece can be an array substrate, and the second workpiece can be a color film substrate; or the first workpiece and the second workpiece are respectively different transparent display screens in the stereoscopic display device.

As shown in fig. 1 and 2A, the aligning apparatus includes: the device comprises a base 10, a fixing table 20, a bearing table 30 and a position adjusting mechanism 40, wherein the fixing table 20 is fixedly connected with the base 10 and used for fixing a first workpiece. Wherein the fixing table 20 may be a frame-shaped structure to fix the edge of the first workpiece.

The carrier table 30 is disposed opposite to the fixed table 20, and is used for carrying a second workpiece. Wherein the carrier table 30 may be disposed below the fixed table 20. The carrier 30 may be a rectangular plate-shaped structure having a carrier surface and a bottom surface opposite to each other, and a side surface connected between the carrier surface and the bottom surface.

The position adjusting mechanism 40 is disposed on the base 10 and connected to the carrier 30 for driving the carrier 30 to move on its plane relative to the base 10. The moving manner of the carrier 30 may include at least one of the following: the carriage 30 moves in the longitudinal direction, moves in the width direction, and rotates about the first axis. Wherein the first axis extends in the thickness direction of the carrier table 30.

In the embodiment of the present disclosure, the position adjusting mechanism 40 may drive the bearing table 30 to move, so as to adjust the position of the second workpiece on the bearing table 30, so that the second workpiece moves relative to the first workpiece, and thus, the alignment between the second workpiece and the first workpiece is achieved. Compared with the manual alignment mode, the position adjusting mechanism 40 is beneficial to improving the alignment efficiency and the alignment accuracy.

When the first workpiece and the second workpiece are aligned by using the alignment device, whether the first workpiece and the second workpiece are aligned successfully can be judged by observing the first alignment mark on the first workpiece and the second alignment mark on the second workpiece. To facilitate viewing of the first alignment mark and the second alignment mark, the fixing table 20 has a frame-shaped structure as shown in fig. 1 and 2A. The fixing table 20 may include a frame-shaped fixing table body 20b, the fixing table body 20b may be fixedly connected to the base 10 through a connecting wall 21, the fixing table body 20b, the connecting wall 21 and the base 10 may be formed as a single body, or the fixing table body 20b and the connecting wall 21 may be formed as a single body, and the connecting wall 21 is connected to the base 10 through a connecting member such as a screw. The fixed table body 20b is provided with a fixing member 20a, and the fixing member 20a is used for fixing the first workpiece. In one example, the fastener 20a is an adhesive glue layer. For example, the adhesive layer is a buffer double-sided tape, thereby preventing the first workpiece from being damaged.

In some embodiments, the position adjusting mechanism 40 includes one of a first adjusting assembly 41 and a second adjusting assembly 42, wherein the first adjusting assembly 41 is disposed on the base 10 for driving the carrier 30 to move linearly along the first direction. The second adjustment assembly 42 is disposed on the base 10 for driving the platform 30 to move linearly along the second direction. Wherein the first direction intersects the second direction. For example, the first direction is perpendicular to the second direction, and exemplarily, one of the first direction and the second direction is a length direction of the carrier 30, and the other is a width direction of the carrier 30.

In some embodiments, as shown in fig. 1 and 2A, position adjustment mechanism 40 includes a first adjustment assembly 41 and a second adjustment assembly 42 to enable at least translation of stage 30 in two cross directions. Wherein, the first adjusting component 41 includes: a first screw 411 extending in a first direction. Be provided with first mounting hole V3 on the side of plummer 30, be provided with the first through-hole V1 that corresponds with first mounting hole V3 on the base 10, first through-hole V1 and first mounting hole V3 are the screw hole with first screw 411 adaptation, first through-hole V1 is passed and first mounting hole V3 is stretched into to the pole portion of first screw 411, the head of first screw 411 is located the one side that base 10 deviates from first mounting hole V3. By rotating the first screw 411, the length of the first screw 411 extending into the first mounting hole V3 can be adjusted, and the bearing platform 30 is driven to move along the extending direction of the first screw 411.

The second adjustment assembly 42 includes: the second screw 421 extends along the second direction, a second mounting hole is provided on the side surface of the plummer 30, a second through hole V2 corresponding to the second mounting hole is provided on the base 10, the second through hole V2 and the second mounting hole are both threaded holes adapted to the second screw 421, and the rod portion of the second screw 421 passes through the second through hole V2 and extends into the second mounting hole.

When the thread pitch of the first screw 411 and the thread pitch of the second screw 421 are small, the first screw 411 or the second screw 421 is rotated by one turn, so that the plummer 30 can move by a small distance, and the alignment accuracy can be improved.

Wherein, the side of plummer 30 includes: two first side surfaces parallel to the first direction and two second side surfaces parallel to the second direction, wherein at least one second side surface is provided with a first mounting hole V3, and at least one first side surface is provided with a second mounting hole. The number of the second mounting holes on the same first side surface can be one or more; the number of the first mounting holes V3 on the same second side surface may be one or more. When the number of the first mounting holes V3 is multiple, the first screws 411 and the first through holes V1 are in one-to-one correspondence with the first mounting holes V3; when the number of the second mounting holes is plural, the second screws 421 and the second through holes V2 are all in one-to-one correspondence with the second mounting holes. In order to stably drive the carrier 30 to move, in some examples, two second mounting holes are provided on one of the first sides; the two second side surfaces are provided with first mounting holes V3, and the number of the first mounting holes V3 on each second side surface is two.

The first mounting hole V3 and the second mounting hole on the plummer 30 may be cylindrical holes, and the first through hole V1 and the second through hole V2 may be both elongated, specifically, the first through hole V1 and the second through hole V2 both have a length, a width and a depth, the width of the first through hole V1 may match the diameter of the first screw 411, and the length of the first through hole V1 is greater than the diameter of the first screw 411; the width of the second through hole V2 matches the diameter of the second screw 421, and the length of the second through hole V2 is greater than the diameter of the second screw 421. In this case, even when one end of the first screw 411 extends into the first mounting hole V3, the platform 30 can still be displaced in the second direction by the second screw 421; similarly, when one end of the second screw 421 extends into the second mounting hole, the bearing platform 30 can still be displaced in the first direction by the first screw 411.

In fig. 1 and 2A, the second workpiece may be fixed on the carrier 30, for example, by fixing members such as adhesive, screws, and clamps, etc. on the carrier 30.

Fig. 2B is a schematic diagram of an alignment apparatus and a first workpiece and a second workpiece provided in other embodiments of the disclosure, as shown in fig. 2B, the first workpiece 1a is fixed on the fixing stage 20, and the second workpiece 1B may be integrally disposed with the bearing stage 30. Exemplarily, the second workpiece 1b includes: the plate-shaped portion 1b1 and the column-shaped portion 1b2 fixedly provided on the plate-shaped portion 1b1, the plate-shaped portion 1b1 and the column-shaped portion 1b2 may be of an integral structure. In this case, the plate-shaped portion 1b1 and the platform 30 are integrated, so that an additional platform is not required, which is beneficial to simplifying the alignment process and reducing the production cost.

Fig. 3 is a perspective view of an aligning apparatus provided in other embodiments of the present disclosure, fig. 4 is a longitudinal sectional view of the aligning apparatus in fig. 3 parallel to a first direction, fig. 5 is a longitudinal sectional view of the aligning apparatus in fig. 3 parallel to a second direction, and fig. 6 is an exploded view of the aligning apparatus in fig. 3, wherein the aligning apparatus shown in fig. 3 is mainly different from the aligning apparatus shown in fig. 1 in a specific structure of a position adjusting mechanism.

In other embodiments of the present disclosure, as shown in fig. 3 to 6, the position adjustment structure includes: a first adjusting component 41, a second adjusting component 42, a third adjusting component 43, a first receiving plate 45 and a second receiving plate 44. In fig. 3 to 6, a connection structure between the carrier stage 30 and the base 10 is not shown.

The base 10 is a plate-shaped structure, and the first receiving plate 45, the second receiving plate 44, and the platform 30 are sequentially disposed in a direction away from the base 10. The first adjusting assembly 41 and the first receiving plate 45 are both disposed on the base 10, and the first adjusting assembly 41 is connected to the first receiving plate 45 and is used for driving the first receiving plate 45 to move along the first direction relative to the base 10, so as to drive the second receiving plate 44 on the first receiving plate 45 and the bearing platform 30 to move along the first direction.

Specifically, the first adjustment assembly 41 includes: a first mounting plate 412 and a third screw 413. The first mounting plate 412 is provided on a side surface of the base 10, and the first mounting plate 412 is provided with a first screw hole. The rod of the third screw 413 passes through the first threaded hole and extends into the second threaded hole on the first bearing plate 45, and the head of the third screw 413 is located on the side of the first mounting plate 412 facing away from the second threaded hole. The axial directions of the first threaded hole and the second threaded hole are both parallel to the first direction. By rotating the third screw 413, the length of the third screw 413 extending into the second threaded hole can be adjusted, and the first bearing plate 45 is further driven to move along the extending direction of the third screw 413. The thread gap of the third screw 413 can be set to be small, so that the moving distance of the first receiving plate 45 is small every time the third screw 413 rotates for one circle, and the moving distance of the first receiving plate 45 is controlled accurately.

It should be noted that, in fig. 3 to 6, the base 10 may have a top surface and a bottom surface which are oppositely arranged, and the side surface of the base 10 refers to a surface connected between the top surface and the ground.

For example, the first receiving plate 45 includes: the bearing plate comprises a bearing plate body and an auxiliary block 44a arranged on the bearing plate body, wherein the bearing plate body can be of a plate-shaped structure, the auxiliary block 44a is arranged on the side surface of the bearing plate body, and the second threaded hole is arranged on the auxiliary block 44 a.

In the embodiment of the present disclosure, the third screw 413 may be disposed on one side of the auxiliary block 44a, and of course, the third screw 413 may also be disposed on both opposite sides of the auxiliary block 44a, in this case, the second screw hole does not need to be disposed on the auxiliary block 44a, and the translation of the first bearing plate 45 in the first direction may be realized by the pushing action of the third screws 413 on both sides on the auxiliary block 44 a.

Optionally, as shown in fig. 6, there are further provided between the base 10 and the first receiving plate 45: a first guide rail 414 and a first slider 415, the first guide rail 414 extending in a first direction. The first slider 415 is slidably disposed on the first guide rail 414. One of the first guide rail 414 and the first slider 415 is fixed to the base 10, and the other is fixed to the first receiving plate 45. For example, the first guide rail 414 is fixed to the base 10 by a connector such as a screw, and the first slider 415 is fixed to the first receiving plate 45 by a connector such as a screw. The guide function of the first guide rail 414 prevents the first receiving plate 45 from being shaken when moving relative to the base 10, thereby improving the positioning accuracy.

In one example, the number of first guide rails 414 may be multiple, e.g., two; the number of the first sliders 415 provided on each of the first guide rails 414 may be plural, for example, two, so that the first receiving plate 45 is more stable when moving in the first direction. In addition, when the first slider 415 is fixed on the first receiving plate 45, a receiving groove may be provided on a surface of the first receiving plate 45 facing the base 10, and at least a portion of the first slider 415 is located in the receiving groove on the first receiving plate 45.

The second adjustment assembly 42 is disposed on the first receiving plate 45. The second receiving plate 44 is disposed on a side of the first receiving plate 45 away from the base 10 and is connected to the second adjustment assembly 42. The second adjusting assembly 42 is used for driving the second receiving plate 44 to move along the second direction relative to the first receiving plate 45, so as to drive the bearing platform 30 above the second receiving plate 44 to move along the second direction relative to the base 10.

As shown in fig. 6, the second adjusting assembly 42 includes: a second mounting plate 422 and a fourth screw 423. The second mounting plate 422 is disposed on the side surface of the first receiving plate 45, and the second mounting plate 422 is provided with a third threaded hole. The rod of the fourth screw 423 passes through the third threaded hole and extends into the fourth threaded hole on the side of the second bearing plate 44, and the head of the fourth screw 423 is located on the side of the second mounting plate 422 away from the fourth threaded hole. The axial directions of the third threaded hole and the fourth threaded hole are both parallel to the second direction. By rotating the fourth screw 423, the length of the fourth screw 423 extending into the fourth threaded hole can be adjusted, and the second receiving plate 44 is driven to move relative to the first receiving plate 45 along the extending direction of the fourth screw 423. The thread gap of the fourth screw 423 may be set to be small, so that the distance that the second receiving plate 44 moves is small every time the fourth screw 423 rotates once, thereby facilitating accurate control of the moving distance of the second receiving plate 44.

In the embodiment of the present disclosure, the number of the fourth screws 423 is not limited, for example, the number of the fourth screws 423 is one, or a plurality. When the number of the fourth screws 423 is plural, the plural fourth screws 423 may be located on the same side of the second receiving plate 44, or may be located on opposite sides.

Optionally, as shown in fig. 6, there may be further provided between the first receiving plate 45 and the second receiving plate 44: a second guide rail 424 and a second slider 425. Wherein the second guide rail 424 extends along the second direction, and the second slider 425 is slidably disposed on the second guide rail 424. One of the second guide rail 424 and the second slider 425 is fixed to the first receiving plate 45, and the other is fixed to the second receiving plate 44. For example, the second guide rail 424 is fixed to the first receiving plate 45 by a fastening member such as a screw, and the second slider 425 is fixed to the second receiving plate 44 by a fastening member such as a screw. The guide function of the second guide rail 424 prevents the second receiving plate 44 from being moved relative to the first receiving plate 45 and thus improves the positioning accuracy.

In one example, the number of the second guide rails 424 may be plural, for example, two; the number of the second sliders 425 provided on each of the second guide rails 424 may be plural, for example, two, so that the second receiving plate 44 is more stable when moving in the second direction. In addition, when the second slider 425 is fixed on the second receiving plate 44, a receiving groove may be provided on a surface of the second receiving plate 44 facing the base 10, and at least a portion of the second slider 425 is located in the receiving groove on the second receiving plate 44.

The third adjusting assembly 43 is disposed on the second receiving plate 44 and connected to the susceptor 30, and the third adjusting assembly 43 is used for driving the susceptor 30 to rotate around a first axis relative to the second receiving plate 44, wherein the first axis extends along the thickness direction of the susceptor 30.

Optionally, as shown in fig. 6, a protrusion 31 is disposed on a side surface of the bearing table 30, and the third adjusting assembly 43 specifically includes: a rotating shaft 435 and a pushing unit, wherein the rotating shaft 435 extends along the thickness direction of the bearing table 30, and the axis of the rotating shaft 435 is used as the first axis. The rotating shaft 435 is fixedly connected to the second receiving plate 44 and rotatably connected to the platform 30. For example, the second receiving plate 44 is provided with a mounting hole V11, the platform 30 is provided with a mounting hole V12, a part of the rotating shaft 435 is located in the mounting hole V11, another part of the rotating shaft 435 is located in the mounting hole V12, and the mounting hole V12 is provided with a bearing assembly 436 matched with the rotating shaft 435. The rotating shaft 435 may be fixedly connected to the second receiving plate 44 by a flange 435a, and rotatably connected to the bearing platform 30 by a bearing assembly 436.

The pushing unit is disposed on the second receiving plate 44 and used for pushing the projection 31 to rotate the bearing table 30 around the first axis. Optionally, the pushing unit comprises: a third mounting plate 433, a fourth mounting plate 434, a fifth screw 431, and a sixth screw 432. The third mounting plate 433 and the fourth mounting plate 434 are fixed on the second receiving plate 44 and located on two opposite sides of the protrusion 31. A fifth threaded hole is formed in the third mounting plate 433, a sixth threaded hole is formed in the fourth mounting plate 434, an opening at one end of the fifth threaded hole and an opening at one end of the sixth threaded hole face the bump 31, and the axial direction of the fifth threaded hole and the axial line of the sixth threaded hole are parallel to the plane where the bearing platform 30 is located. The head of the fifth screw 431 is positioned on one side of the third mounting plate 433 away from the bump 31, and the rod of the fifth screw 431 passes through the fifth threaded hole; the head of the sixth screw 432 is located on a side of the fourth mounting plate 434 away from the projection 31, and the shaft of the sixth screw 432 passes through the fifth threaded hole. By rotating the fifth screw 431 and the sixth screw 432, the fifth screw 431 can be moved close to the projection 31 and push the projection 31, or the sixth screw 432 can be moved close to the projection 31 and push the projection 31, so that the bearing table 30 can be driven to rotate by a certain angle around the axis of the rotating shaft 435. The angular range over which the carrier table 30 is rotated is, for example, (0, 15 ° ]).

The thread gap between the fifth screw 431 and the sixth screw 432 can be set to be small, so that the moving distance of the bearing platform 30 is small every time the sixth screw 432 rotates one circle, thereby being beneficial to accurately controlling the moving distance of the bearing platform 30.

In the positioning device shown in fig. 1, 2B, and 3, the first to sixth screws 411 to 432 may be manually rotated, but it is needless to say that the screws may be driven to rotate by an actuator.

Fig. 7 is a schematic view of an aligning apparatus provided in other embodiments of the present disclosure, and the aligning apparatus shown in fig. 7 is similar to the aligning apparatus shown in fig. 3, except that a detecting mechanism 50 and a control mechanism are further included in the aligning apparatus shown in fig. 7.

The detecting mechanism 50 is configured to detect a relative position of the first workpiece 1a and the second workpiece 1b, where the relative position of the first workpiece 1a and the second workpiece 1b may specifically refer to a relative position of a first alignment mark on the first workpiece 1a and a second alignment mark on the second workpiece 1 b. Alternatively, the detection mechanism 50 may include an image pickup unit disposed on a side of the fixing table 20 away from the susceptor 30 for image pickup of the first and second workpieces 1a and 1b to detect the positions of the first and second workpieces 1a and 1 b.

The control mechanism is connected with the detection mechanism 50 and is used for providing power for the position adjusting mechanism according to the relative position of the first workpiece 1a and the second workpiece 1b, so that the position adjusting mechanism 40 drives the bearing table 30 to move under the power action of the control mechanism. Wherein the control mechanism may comprise a control unit 61 and drivers 62, 63 and 64, the control unit 61 being electrically connected to the detection mechanism 50 for generating the drive signal depending on the relative position of the first 1a and second 1b workpieces. The drivers 62-64 are electrically connected with the control unit and used for providing power for the position adjusting mechanism according to the driving signals. The number of the drivers can be multiple, the first driving assembly, the second driving assembly and the third driving assembly correspond to at least one driver, and the drivers can be rotating motors. The third screw, the fourth screw, the fifth screw, and the sixth screw may all be rotated by the drive of the driver.

When the first workpiece 1a and the second workpiece 1b are aligned by using the alignment apparatus in fig. 7, the image capturing unit captures images of a first alignment mark on the first workpiece 1a and a second alignment mark on the second workpiece 1b, and the control unit may determine the relative positions of the first workpiece 1a and the second workpiece 1b according to the relative positions of the first alignment mark and the second alignment mark. When the first alignment mark and the second alignment mark are not aligned, the control mechanism provides power for the position adjustment mechanism, so that the position adjustment mechanism drives the carrier 30 to move under the power of the control mechanism until the first alignment mark and the second alignment mark are aligned.

Fig. 8 is a schematic diagram of a first alignment mark and a second alignment mark before and after alignment in some implementations of the disclosure, and fig. 9 is a schematic diagram of a first alignment mark and a second alignment mark before and after alignment in other implementations of the disclosure. As shown in fig. 8 to 9, the alignment of the first alignment mark M1 and the second alignment mark M2 means that the center of the first alignment mark M1 and the center of the second alignment mark M2 substantially coincide. For example, the first workpiece is a liquid crystal panel and the second workpiece is a waveguide. At this time, the first alignment mark M1, the second alignment mark M2 and their aligned patterns can be as shown in fig. 8, the first alignment mark M1 is a frame pattern, the second alignment mark M2 is a rectangle pattern, and when the first alignment mark M1 and the second alignment mark M2 are aligned, the second alignment mark M2 surrounds the first alignment mark M1 and their centers are approximately coincident. As another example, the first workpiece and the second workpiece are two transparent display panels (e.g., MiniLED transparent screens), the first alignment mark M1, the second alignment mark M2, and the aligned graphics thereof may be as shown in fig. 9, the first alignment mark M1 is a cross pattern, the second alignment mark M2 includes four rectangular blocks, and when the first alignment mark M1 and the second alignment mark M2 are aligned, the center positions of the four rectangular blocks substantially coincide with the center of the first alignment mark M1.

As described above, the aligning apparatus of the present disclosure may align different transparent display screens in a stereoscopic display device. When the stereoscopic display device comprises n (n > 2) transparent display screens, one of the transparent display screens can be used as a first workpiece, and one of the other transparent display screens can be used as a second workpiece, so that the two transparent display screens are aligned; then, fixing the two aligned transparent display screens together, taking the fixed transparent display screens as a first workpiece, and taking a third transparent display screen as a second workpiece, so as to align the two fixed transparent display screens with the third transparent display screen; then, fixing the three aligned transparent display screens together to serve as a first workpiece; and taking the fourth transparent display screen as a second workpiece. And repeating the steps until all the transparent display screens are aligned.

In the aligning apparatus shown in fig. 1 and 2B, a detection mechanism and a control mechanism may be provided, so that the control mechanism drives the first screw 411 and the second screw 421 to rotate, thereby automatically adjusting the position of the susceptor 30.

It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.

Claims (14)

1. An alignment apparatus for aligning a first workpiece with a second workpiece, the alignment apparatus comprising:

a base;

the fixing table is fixedly connected with the base and used for fixing the first workpiece;

the bearing table is arranged opposite to the fixed table and used for bearing the second workpiece;

and the position adjusting mechanism is arranged on the base, is connected with the bearing table and is used for driving the bearing table to move on the plane where the bearing table is located relative to the base.

2. The aligning apparatus of claim 1, wherein the position adjusting mechanism comprises:

the first adjusting assembly is arranged on the base and used for driving the bearing table to linearly move along a first direction;

and/or the presence of a gas in the gas,

and the second adjusting assembly is arranged on the base and used for driving the bearing table to perform linear motion along a second direction, and the first direction is crossed with the second direction.

3. The aligning apparatus of claim 2, wherein the stage comprises: the bearing surface and the bottom surface are arranged oppositely, and the side surface is connected between the bearing surface and the bottom surface;

the position adjustment mechanism includes the first adjustment assembly and the second adjustment assembly,

the first adjustment assembly includes: the side surface of the bearing table is provided with a first mounting hole, the base is provided with a first through hole corresponding to the first mounting hole, the first through hole and the first mounting hole are threaded holes matched with the first screw, and the rod part of the first screw penetrates through the first through hole and extends into the first mounting hole;

the second adjustment assembly includes: a second mounting hole is formed in the side face of the bearing table, a second through hole corresponding to the second mounting hole is formed in the base, the second through hole and the second mounting hole are threaded holes matched with the second screw, and the rod part of the second screw penetrates through the second through hole and extends into the second mounting hole;

wherein the first screw extends in the first direction and the second screw extends in the second direction.

4. The aligning apparatus of claim 2, wherein the position adjusting mechanism comprises: the first adjusting component, the second adjusting component, the third adjusting component, the first bearing plate and the second bearing plate, wherein,

the first bearing plate, the second bearing plate and the bearing table are sequentially arranged along the direction far away from the base;

the first adjusting assembly is arranged on the base and used for driving the first bearing plate to move relative to the base along the first direction so as to drive the bearing table to move relative to the base along the first direction;

the second adjusting assembly is arranged on the first bearing plate and used for driving the second bearing plate to move relative to the first bearing plate along the second direction so as to drive the bearing table to move relative to the base along the second direction;

the third adjusting assembly is arranged on the second bearing plate and used for driving the bearing table to rotate around a first axis relative to the second bearing plate, and the first axis extends along the thickness direction of the bearing table.

5. The alignment device of claim 4, wherein the first adjustment assembly comprises:

the first mounting plate is arranged on the side surface of the base, and a first threaded hole is formed in the first mounting plate;

and the rod part of the third screw penetrates through the first threaded hole and extends into a second threaded hole in the first bearing plate, and the axial directions of the first threaded hole and the second threaded hole are both parallel to the first direction.

6. The alignment device of claim 4, further comprising:

a first rail extending in the first direction;

the first sliding block is arranged on the first guide rail in a sliding mode;

one of the first guide rail and the first sliding block is fixed on the base, and the other one is fixed on the first bearing plate.

7. The alignment device of claim 4, wherein the second adjustment assembly comprises:

the second mounting plate is arranged on the side surface of the first bearing plate, and a third threaded hole is formed in the second mounting plate;

and the rod part of the fourth screw penetrates through the third threaded hole and extends into a fourth threaded hole in the side surface of the second bearing plate, and the axial directions of the third threaded hole and the fourth threaded hole are parallel to the second direction.

8. The alignment device of claim 4, further comprising:

a second rail extending in the second direction;

the second sliding block is arranged on the second guide rail in a sliding mode;

one of the second guide rail and the second slider is fixed to the first receiving plate, and the other is fixed to the second receiving plate.

9. The aligning apparatus of claim 4, wherein the stage comprises: the bearing platform comprises a bearing surface, a bottom surface and a side surface, wherein the bearing surface and the bottom surface are arranged oppositely, the side surface is connected between the bearing surface and the bottom surface, and a convex block is arranged on the side surface of the bearing platform;

the third adjustment assembly includes:

the rotating shaft is fixedly connected with the second bearing plate and is rotationally connected with the bearing table, and the axis of the rotating shaft is used as a first axis;

and the pushing unit is arranged on the second bearing plate and used for pushing the bump so as to enable the bearing table to rotate around the first axis.

10. The aligning apparatus of claim 9, wherein the pushing unit comprises:

the third mounting plate and the fourth mounting plate are arranged on the second bearing plate and are respectively positioned at two opposite sides of the lug, a fifth threaded hole is formed in the third mounting plate, a sixth threaded hole is formed in the fourth mounting plate, and an opening at one end of the fifth threaded hole and an opening at one end of the sixth threaded hole face the lug;

the head of the fifth screw is positioned on one side, far away from the lug, of the third mounting plate, and the rod part of the fifth screw penetrates through the fifth threaded hole;

and the head of the sixth screw is positioned on one side of the fourth mounting plate, which is far away from the lug, and the rod part of the sixth screw penetrates through the fifth threaded hole.

11. The aligning apparatus according to any one of claims 1 to 10, wherein the fixing table comprises:

the fixed table body is fixedly connected with the base;

and the fixing piece is arranged on the fixing table body and used for fixing the first workpiece.

12. The aligning apparatus of any one of claims 1 to 10, further comprising:

a detection mechanism for detecting a relative position of the first workpiece and the second workpiece;

and the control mechanism is connected with the detection mechanism and used for providing power for the position adjusting mechanism according to the relative position of the first workpiece and the second workpiece so as to drive the bearing table to move under the power action of the control mechanism.

13. The alignment apparatus as claimed in claim 12, wherein the fixing table has a frame-shaped structure, and the detecting mechanism includes:

the image acquisition unit is arranged on one side, far away from the bearing table, of the fixing table and is used for acquiring images of the first workpiece and the second workpiece so as to detect the positions of the first workpiece and the second workpiece.

14. The alignment device of claim 12, wherein the control mechanism comprises:

the control unit is connected with the detection mechanism and used for generating a driving signal according to the relative position of the first workpiece and the second workpiece;

and the driver is connected with the control unit and used for providing power for the adjusting mechanism according to the driving signal.

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