CN215317892U

CN215317892U - Positioning jig and polishing device

Info

Publication number: CN215317892U
Application number: CN202121368588.8U
Authority: CN
Inventors: 潘灿彬; 付迪飞; 潘连兴
Original assignee: Wanzai Antarctic Optoelectronics Technology Co ltd
Current assignee: Wanzai Antarctic Optoelectronics Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-28
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a positioning jig and a polishing device. The positioning jig comprises a first positioning assembly and second positioning assemblies which are opposite to the first positioning assembly along a first direction and located on two sides of the loading platform, the first positioning assembly comprises a first base, a first driving cylinder and a first positioning piece, the first base is in driving connection with the first driving cylinder, and the first positioning piece is movably arranged on the first base between a first position and a second position; the first adjusting piece is arranged on the first base and used for adjusting the position of the first positioning piece between a first position and a second position; the second positioning assembly comprises a second base, a second driving cylinder and a second positioning piece, the second base is in driving connection with the second driving cylinder, and the second positioning piece is movably arranged on the second base between a third position and a fourth position; and the first elastic piece is arranged between the second base and the second positioning piece. The utility model can adjust the space between the positioning pieces to position the light guide plates with different sizes.

Description

Positioning jig and polishing device

Technical Field

The utility model relates to the technical field of polishing devices, in particular to a positioning jig and a polishing device.

Background

After the light guide plate is cut and formed, the side edge of the light guide plate is not smooth enough, and a polishing device is needed to polish the side edge of the light guide plate. Before polishing, the light guide plate needs to be positioned, and positioning pieces of a positioning jig of the polishing device respectively move towards the light guide plate from four side surfaces of the light guide plate so as to push the light guide plate to a preset position, so that the light guide plate is positioned; however, the spacing between the positioning members of the conventional positioning jig cannot be adjusted, so that the conventional positioning jig cannot be applied to positioning light guide plates of different sizes.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a positioning jig, aiming at adjusting the distance between positioning pieces so as to be suitable for positioning light guide plates with different sizes.

In order to achieve the above object, the present invention provides a positioning fixture. The positioning jig comprises a first positioning component and second positioning components which are opposite to the first positioning component along a first direction and positioned on two sides of the material loading platform, the first positioning component comprises a first base, a first driving cylinder and a first positioning component, the first base is in driving connection with the first driving cylinder, and the first positioning component is movably arranged on the first base between a first position and a second position; the first adjusting piece is arranged on the first base and used for adjusting the position of the first positioning piece between the first position and the second position; the second positioning assembly comprises a second base, a second driving cylinder and a second positioning piece, the second base is in driving connection with the second driving cylinder, and the second positioning piece is movably arranged on the second base between a third position and a fourth position; and the first elastic piece is arranged between the second base and the second positioning piece.

Optionally, the first base includes a first base body and a first support installed on a top surface of the first base body, the first positioning component also comprises a first slide rail arranged on the side surface of the first bracket and a first slide block arranged on the first slide rail in a sliding way, the first positioning component is arranged on the first slide block, so as to move between the first position and the second position, a first mounting part is convexly arranged on the top surface of one end of the first bracket, which is back to the second positioning component, the first mounting part is provided with a first assembling hole, the first adjusting piece is mounted in the first assembling hole, the driving end of the first adjusting piece is connected with the first positioning piece, the first positioning piece is driven to move between the first position and the second position, and a stop piece is convexly arranged on the top surface of one end, facing the second positioning component, of the first support.

Optionally, the second base includes a second base body and a second support installed on the top surface of the second base body, the second positioning assembly further includes a second slide rail installed on the side surface of the second support body and a second slide block installed on the second slide rail in a sliding manner, the second positioning element is installed on the second slide block so as to move between the third position and the fourth position, a first convex portion is convexly arranged on the top surface of one end of the second support back to the first positioning assembly, a blind hole is arranged on one end of the second slide block back to the first positioning assembly, one end of the first elastic element is installed in the blind hole, and the other end of the first elastic element abuts against the first convex portion.

Optionally, the positioning fixture further includes a third positioning assembly and fourth positioning assemblies located on two sides of the loading platform opposite to the third positioning assembly along the second direction, the third positioning assembly includes a third base, a third driving cylinder and a third positioning element, the third base is in driving connection with the third driving cylinder, and the third positioning element is movably disposed on the third base between a fifth position and a sixth position; the second adjusting piece is arranged on the third base and used for adjusting the position of the third positioning piece between the fifth position and the sixth position; the fourth positioning assembly comprises a fourth base, a fourth driving cylinder and a fourth positioning piece, the fourth base is in driving connection with the fourth driving cylinder, and the fourth positioning piece is movably arranged on the fourth base between a seventh position and an eighth position; and a second elastic member installed between the fourth base and the fourth positioning member.

Optionally, the third positioning assembly further comprises a third slide rail installed on the third base, a third sliding block installed on the third slide rail in a sliding mode, and a third elastic piece, the third positioning piece is installed on the third sliding block to move between a fifth position and a sixth position, a second installation portion is convexly arranged on the top surface of the third base, a second assembly hole is formed in the second installation portion, a second adjusting piece is installed in the second assembly hole, the driving end of the second adjusting piece is connected to the third positioning piece to drive the third positioning piece to move between the fifth position and the sixth position, one end of the third elastic piece is connected to the top surface of the third base, and the other end of the third elastic piece is connected to the third positioning piece.

Optionally, the third positioning element includes a first connecting seat and a positioning rod extending along the second direction, a mounting hole extending along the second direction is formed in the first connecting seat, the positioning rod is mounted in the mounting hole, an adjusting gap is formed in the first connecting seat, the adjusting gap is used for communicating the mounting hole with the external environment, one end of the third elastic element is connected to the first connecting seat, and the other end of the third elastic element is connected to the top surface of the third base.

Optionally, a positioning head is arranged at one end of the positioning rod, which faces the fourth positioning assembly, a guide inclined plane is arranged on the side face of the positioning head, and the guide inclined plane inclines from the side portion of the positioning head to the middle portion of the positioning head.

Optionally, the fourth positioning assembly further comprises a fourth slide rail mounted on the fourth base and a fourth slide block slidably mounted on the fourth slide rail, the fourth positioning element is mounted on the fourth slide block to move between the seventh position and the eighth position, a second convex portion is convexly arranged on the top surface of one end of the fourth base opposite to the third positioning assembly, a third convex portion is convexly arranged on the top surface of the fourth positioning element, a counter bore is formed in the third convex portion, one end of the second elastic element is connected to the second convex portion, and the other end of the second elastic element is connected to the counter bore.

Optionally, the fourth positioning element includes a second connecting seat mounted on the fourth slider and a positioning rotating block rotatably mounted on the second connecting seat, the third protruding portion is arranged on the top surface of the second connecting seat in a protruding manner, the positioning rotating block is cylindrical, and the local protruding portion of the positioning rotating block protrudes from the side surface of the second connecting seat facing the material loading platform.

The utility model also provides a polishing device which comprises a material loading platform and the positioning jig.

According to the technical scheme, the first adjusting piece is operated to adjust the position of the first positioning piece between the first position and the second position, so that when the first positioning piece and the second positioning piece move relatively, the distance between the first positioning piece and the second positioning piece is adjusted, and the light guide plate positioning device is suitable for positioning light guide plates with different sizes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a positioning fixture according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the first positioning assembly of FIG. 1;

FIG. 3 is a schematic structural view of the second positioning assembly of FIG. 1;

FIG. 4 is a schematic view of a third positioning assembly shown in FIG. 1;

fig. 5 is a schematic structural diagram of a fourth positioning assembly in fig. 1. The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Positioning jig	311	Second mounting part
10	A first positioning component	312	Second assembling hole
				11	First base	32	Third positioning piece
111	First seat body	321	First connecting seat
				112	First support	322	Positioning rod
113	First mounting part	323	Mounting hole
				114	First assembling hole	324	Adjusting the gap
115	Stop piece	325	Positioning head
				12	First driving cylinder	326	Guide ramp
13	First positioning piece	33	Second regulating part
				14	First adjusting part	34	Third slide rail
15	First slide rail	35	Third slide block
				16	First slide block	40	Fourth positioning assembly
20	Second positioning assembly	41	Fourth base
				21	Second base	411	Second convex part
211	Second seat body	42	The fourth positioning piece
				212	Second support	421	Second connecting seat
213	First convex part	422	Third convex part
				22	Second driving cylinder	423	Positioning rotating block
23	Second positioning piece	43	Fourth slide rail
				24	Second slide rail	44	Fourth slide block
25	Second slide block	50	First mounting base
				30	Third positioning assembly	60	Second mounting base
31	Third base	200	Material loading platform

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a positioning fixture 100.

In an embodiment of the present invention, as shown in fig. 1 to fig. 3, the positioning fixture 100 includes a first positioning assembly 10 and second positioning assemblies 20 located at two sides of the loading platform 200 opposite to the first positioning assembly 10 along a first direction, the first positioning assembly 10 includes a first base 11, a first driving cylinder 12 and a first positioning member 13, the first base 11 is connected to the first driving cylinder 12 in a driving manner, and the first positioning member 13 is movably disposed on the first base 11 between a first position and a second position; a first adjusting member 14 mounted on the first base 11 for adjusting the position of the first positioning member 13 between the first position and the second position; the second positioning assembly 20 comprises a second base 21, a second driving cylinder 22 and a second positioning member 23, the second base 21 is in driving connection with the second driving cylinder 22, and the second positioning member 23 is movably arranged on the second base 21 between a third position and a fourth position; and a first elastic member (not shown) installed between the second base 21 and the second positioning member 23.

Specifically, the loading platform 200 is used for placing a light guide plate, and the positioning fixture 100 is used for moving the light guide plate on the loading platform 200 to a preset position. The first base 11 is used for bearing a first positioning member 13 and a first adjusting member 14, and the first driving cylinder 12 is used for driving the first base 11 to reciprocate in a first direction, so as to drive the first positioning member 13 to reciprocate in the first direction. The second base 21 is used for bearing the second positioning element 23 and the first elastic element, and the second driving cylinder 22 is used for driving the second base 21 to reciprocate in the first direction, so as to drive the second positioning element 23 to reciprocate in the second direction. The first position and the second position are positions of the first positioning member 13 relative to the first base 11, and the second position is closer to the loading platform 200 than the first position. The third position and the fourth position are positions of the second positioning member 23 relative to the second base 21, and the fourth position is closer to the loading platform 200 than the third position. The first adjusting member 14 is a micrometer, and the accuracy of the position adjustment of the first positioning member 13 is improved. When fixing a position the light guide plate, adjust first regulating part 14 and must not guarantee that the interval between first locating part 13 and the second locating part 23 equals the light guide plate size, consequently can adjust first regulating part 14 to the interval between first locating part 13 and the second locating part 23 and be less than the light guide plate size usually, in order to ensure that first locating part 13 and second locating part 23 can support the both sides that push away the light guide plate respectively, guarantee the locate effect, first elastic component is the pressure spring, first elastic component is compressed during the location, in order to adapt to the light guide plate size, and the pressure spring can play the cushioning effect, prevent that the light guide plate from damaging because of rigid collision.

The positioning principle of the positioning fixture 100 is as follows: the first driving cylinder 12 drives the first positioning member 13 to move towards the loading platform 200, the second driving cylinder 22 drives the second positioning member 23 to move towards the loading platform 200, and the first positioning member 13 and the second positioning member 23 respectively push opposite sides of the light guide plate on the loading platform 200, so that the light guide plate moves to a preset position.

According to the technical scheme of the utility model, the first adjusting part 14 is operated to adjust the position of the first positioning part 13 between the first position and the second position, so that when the first positioning part 13 and the second positioning part 23 move relatively, the distance between the first positioning part 13 and the second positioning part 23 is adjusted, and the light guide plate positioning device is suitable for positioning light guide plates with different sizes.

Further, the positioning fixture 100 further includes a first mounting base 50 and a second mounting base 60, the first driving cylinder 12 is mounted on the first mounting base 50, the second driving cylinder 22 is mounted on the second mounting base 60, the first base 11 is slidably mounted on the first mounting base 50 through a slide rail and slider structure, the second base 21 is slidably mounted on the second mounting base 60 through a slide rail and slider structure, and the first mounting base 50 and the second mounting base 60 are mounted on a mounting plane of the polishing apparatus, so as to mount the first positioning assembly 10 and the second positioning assembly 20 in the polishing apparatus.

As shown in fig. 1 and fig. 2, in an embodiment, the first base 11 includes a first seat 111 and a first support 112 installed on a top surface of the first seat 111, the first positioning assembly 10 further includes a first slide rail 15 installed on a side surface of the first support 112 and a first slide block 16 slidably installed on the first slide rail 15, the first positioning member 13 is installed on the first slide block 16 to move between the first position and the second position, a first installation portion 113 is convexly disposed on a top surface of an end of the first support 112 opposite to the second positioning assembly 20, the first installation portion 113 is provided with a first assembly hole 114, the first adjusting member 14 is installed in the first assembly hole 114, a driving end of the first adjusting member 14 is connected to the first positioning member 13 to drive the first positioning member 13 to move between the first position and the second position, a stopper 115 is protruded from a top surface of the first bracket 112 toward one end of the second positioning member 20.

Specifically, the first seat 111 is plate-shaped; the first bracket 112 is formed by splicing two rectangular parallelepiped plates, and is L-shaped, one end of the first bracket 112 is mounted on the first seat 111, and the other end faces the material loading platform 200. The first slide rail 15 extends in a first direction. The first mounting portion 113 has a plate shape and is disposed perpendicular to the top surface of the first bracket 112. One end of the first bracket 112 facing the loading platform 200 protrudes toward one side of the first slide rail 15 to form a stop member 115, and the end of the stop member 115 protrudes from the side of the first slider 16 facing the first bracket 112 to prevent the first slider 16 from falling off from the first slide rail 15.

As shown in fig. 1 and fig. 3, in an embodiment, the second base 21 includes a second seat 211 and a second bracket 212 mounted on a top surface of the second seat 211, the second positioning assembly 20 further includes a second slide rail 24 mounted on a side surface of the second bracket 212 and a second slide block 25 slidably mounted on the second slide rail 24, the second positioning element 23 is mounted on the second slide block 25 to move between the third position and the fourth position, a first protrusion 213 is convexly disposed on a top surface of one end of the second bracket 212 facing away from the first positioning assembly 10, one end of the second slide block 25 facing away from the first positioning assembly 10 is provided with a blind hole (not shown), one end of the first elastic element is mounted in the blind hole, and the other end of the first elastic element abuts against the first protrusion 213.

Specifically, the second seat 211 has a plate shape; the second bracket 212 is formed by splicing two rectangular parallelepiped plates and is L-shaped, one end of the second bracket 212 is mounted on the second seat 211, and the other end faces the material loading platform 200. Second slide track 24 extends in a first direction.

As shown in fig. 1, in an embodiment, the positioning fixture 100 further includes a third positioning assembly 30 and a fourth positioning assembly 40 located at two sides of the loading platform 200 opposite to the third positioning assembly 30 along the second direction, the third positioning assembly 30 includes a third base 31, a third driving cylinder and a third positioning member 32, the third base 31 is connected to the third driving cylinder (not shown) in a driving manner, and the third positioning member 32 is movably disposed on the third base 31 between a fifth position and a sixth position; a second adjusting member 33 mounted on the third base 31 for adjusting the position of the third positioning member 32 between the fifth position and the sixth position; the fourth positioning assembly 40 includes a fourth base 41, a fourth driving cylinder (not shown), and a fourth positioning element 42, the fourth base 41 is connected to the fourth driving cylinder, and the fourth positioning element 42 is movably disposed on the fourth base 41 between a seventh position and an eighth position; and a second elastic member (not shown) installed between the fourth base 41 and the fourth positioning member 42.

Specifically, the second direction is perpendicular to the first direction. The third base 31 is used for carrying a third positioning element 32 and a second adjusting element 33, and the third driving cylinder is used for driving the third base 31 to reciprocate in the second direction, so as to drive the third positioning element 32 to reciprocate in the second direction. The fourth base 41 is used for bearing the fourth positioning element 42 and the second elastic element, and the fourth driving mechanism is used for driving the fourth base 41 to reciprocate in the fourth direction, so as to drive the fourth positioning element 42 to reciprocate in the second direction. The fifth position and the sixth position are positions of the third positioning member 32 relative to the third base 31, and the sixth position is closer to the loading platform 200 than the fifth position. The seventh position and the eighth position are positions of the fourth positioning member 42 relative to the fourth base 41, and the eighth position is closer to the loading platform 200 than the seventh position. The second adjusting member 33 is a micrometer, which improves the accuracy of the position adjustment of the third positioning member 32. When fixing a position the light guide plate, adjust second regulating part 33 and must not guarantee that the interval between third setting element 32 and the fourth setting element 42 equals the light guide plate size, consequently can adjust second regulating part 33 to the interval between third setting element 32 and the fourth setting element 42 and be less than the light guide plate size usually, in order to ensure that third setting element 32 and fourth setting element 42 can support the both sides that push away the light guide plate respectively, guarantee the positioning effect, the second elastic component is the pressure spring, the second elastic component is compressed during the location, in order to adapt to the light guide plate size, and the pressure spring can play the cushioning effect, prevent that the light guide plate from damaging because of rigid collision. In the embodiment, the distance between the first positioning member 13 and the second positioning member 23 is adjusted according to the length of the light guide plate, and the distance between the third positioning member 32 and the fourth positioning member 42 is adjusted according to the width of the light guide plate.

Further, the positioning fixture 100 further includes a third mounting base (not shown) and a fourth mounting base (not shown), the third driving cylinder is mounted on the third mounting base, the fourth driving cylinder is mounted on the fourth mounting base, the third base 31 is slidably mounted on the third mounting base through a sliding rail and sliding block structure, the fourth base 41 is slidably mounted on the fourth mounting base through a sliding rail and sliding block structure, and the third mounting base and the fourth mounting base are mounted on the mounting plane of the polishing apparatus, so as to mount the third positioning assembly 30 and the fourth positioning assembly 40 in the polishing apparatus.

As shown in fig. 1 and 4, in an embodiment, the third positioning assembly 30 further includes a third slide rail 34 mounted on the third base 31, a third slide block 35 slidably mounted on the third slide rail 34, and a third elastic member (not shown), the third positioning member 32 is mounted on the third slide block 35, so as to move between the fifth position and the sixth position, a second mounting portion 311 is protruded on the top surface of the third base 31, the second mounting portion 311 is provided with a second assembling hole 312, the second adjusting member 33 is mounted in the second assembling hole 312, the driving end of the second adjusting member 33 is connected to the third positioning member 32, to drive the third positioning element 32 to move between the fifth position and the sixth position, one end of the third elastic member is connected to the top surface of the third base 31, and the other end is connected to the third positioning member 32.

Specifically, the third slide rail 34 extends in the second direction. The second mounting portion 311 has a plate shape and is disposed perpendicular to the top surface of the third base 31. The third elastic member is a tension spring, one end of the third elastic member is connected to the top surface of the third base 31, and the other end of the third elastic member is connected to the bottom surface or the side surface of the third positioning member 32, so as to provide tension for the third positioning member 32, prevent the third sliding block 35 from coming off the third sliding rail 34, and cooperate with the second adjusting member 33 to relatively fix the third sliding block 35 on the third sliding rail 34, so as to prevent the third sliding block 35 from moving due to inertia when the third base 31 moves.

As shown in fig. 1 and 4, in an embodiment, the third positioning element 32 includes a first connecting seat 321 and a positioning rod 322 extending along the second direction, the first connecting seat 321 is provided with an installation hole 323 extending along the second direction, the positioning rod 322 is installed in the installation hole 323, the first connecting seat 321 is provided with an adjustment gap 324, the adjustment gap 324 is used for communicating the installation hole 323 with an external environment, one end of the third elastic element is connected to the first connecting seat 321, and the other end of the third elastic element is connected to the top surface of the third base 31.

Specifically, the first connecting seat 321 is plate-shaped; the positioning rod 322 is cylindrical; the adjusting gap 324 includes a first gap extending downward from the top surface of the first connecting seat 321 by a predetermined distance, and a second gap extending from the bottom end of the first gap to the mounting hole 323 along the horizontal direction, and the mounting size of the mounting hole 323 is controlled by controlling the distance between the second gaps, so as to be suitable for mounting the positioning rods 322 with different sizes.

As shown in fig. 4, in an embodiment, a positioning head 325 is disposed at one end of the positioning rod 322 facing the fourth positioning assembly 40, a guiding inclined surface 326 is disposed at a side surface of the positioning head 325, and the guiding inclined surface 326 inclines from a side portion of the positioning head 325 to a middle portion of the positioning head 325.

Specifically, the guiding inclined plane 326 inclines from both sides of the positioning head 325 toward the direction of the loading platform 200, and when the light guide plate is transported to the loading platform 200, if the light guide plate touches the positioning head 325, the guiding inclined plane 326 can guide the light guide plate to move continuously, so as to prevent the light guide plate from being blocked by the positioning head 325, and the light guide plate cannot reach the preset position of the loading platform 200.

As shown in fig. 1 and fig. 5, in an embodiment, the fourth positioning assembly 40 further includes a fourth slide rail 43 mounted on the fourth base 41 and a fourth slide block 44 slidably mounted on the fourth slide rail 43, the fourth positioning member 42 is mounted on the fourth slide block 44 to move between the seventh position and the eighth position, a second protrusion 411 is convexly disposed on a top surface of one end of the fourth base 41 facing away from the third positioning assembly 30, a third protrusion 422 is convexly disposed on a top surface of the fourth positioning member 42, a counter bore (not shown) is disposed on the third protrusion 422, one end of the second elastic member is connected to the second protrusion 411, and the other end of the second elastic member is connected to the counter bore.

Specifically, the fourth slide rail 43 extends in the second direction. The counterbore extends in a second direction.

As shown in fig. 5, in an embodiment, the fourth positioning element 42 includes a second connecting seat 421 mounted on the fourth sliding block 44 and a positioning rotating block 423 rotatably mounted on the second connecting seat 421, the top surface of the second connecting seat 421 is convexly provided with the third protruding portion 422, the positioning rotating block 423 is cylindrical, and the positioning rotating block 423 partially protrudes from a side surface of the second connecting seat 421 facing the loading platform 200.

Specifically, the second connection holder 421 has a plate shape. When the light guide plate transports to year material platform 200, if the light guide plate touches location commentaries on classics piece 423, location commentaries on classics piece 423 is rotatory can guide the light guide plate to continue to move, prevents that the light guide plate from being blocked by location commentaries on classics piece 423, leads to the light guide plate can't reach year material platform 200 default position.

As shown in fig. 1 and 4, in an embodiment, the number of the third positioning elements 32 is two and is spaced along the first direction, and the number of the fourth positioning elements 42 is two and is spaced along the first direction. Specifically, the light guide plate is generally rectangular, the third positioning element 32 and the fourth positioning element 42 support and push the long edge of the light guide plate, if the third positioning element 32 and the fourth positioning element 42 are only provided with one, the light guide plate is deflected when the light guide plate is easily positioned, and the third positioning element 32 and the fourth positioning element 42 are correspondingly arranged to prevent the light guide plate from being deflected when the light guide plate is positioned.

The present invention further provides a polishing apparatus, which includes a material loading platform 200 and a positioning fixture 100, and the specific structure of the positioning fixture 100 refers to the above embodiments, and since the polishing apparatus adopts all technical solutions of all the above embodiments, the polishing apparatus at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A positioning jig is characterized by comprising:

the first positioning component comprises a first base, a first driving cylinder and a first positioning component, the first base is in driving connection with the first driving cylinder, and the first positioning component is movably arranged on the first base between a first position and a second position;

the first adjusting piece is arranged on the first base and used for adjusting the position of the first positioning piece between the first position and the second position;

the second positioning assembly and the first positioning assembly are oppositely arranged on two sides of the loading platform along a first direction, the second positioning assembly comprises a second base, a second driving cylinder and a second positioning piece, the second base is in driving connection with the second driving cylinder, and the second positioning piece is movably arranged on the second base between a third position and a fourth position; and

the first elastic piece is arranged between the second base and the second positioning piece.

2. The positioning fixture according to claim 1, wherein the first base includes a first base body and a first support installed on a top surface of the first base body, the first positioning component also comprises a first slide rail arranged on the side surface of the first bracket and a first slide block arranged on the first slide rail in a sliding way, the first positioning component is arranged on the first slide block, so as to move between the first position and the second position, a first mounting part is convexly arranged on the top surface of one end of the first bracket, which is back to the second positioning component, the first mounting part is provided with a first assembling hole, the first adjusting piece is mounted in the first assembling hole, the driving end of the first adjusting piece is connected with the first positioning piece, the first positioning piece is driven to move between the first position and the second position, and a stop piece is convexly arranged on the top surface of one end, facing the second positioning component, of the first support.

3. The positioning fixture according to claim 1, wherein the second base includes a second base body and a second bracket mounted on a top surface of the second base body, the second positioning assembly further includes a second slide rail mounted on a side surface of the second bracket and a second slide block slidably mounted on the second slide rail, the second positioning member is mounted on the second slide block so as to be movable between the third position and the fourth position, a first protrusion is convexly disposed on a top surface of the second bracket facing away from one end of the first positioning assembly, a blind hole is disposed on one end of the second slide block facing away from the first positioning assembly, one end of the first elastic member is mounted in the blind hole, and the other end of the first elastic member abuts against the first protrusion.

4. The positioning jig according to any one of claims 1 to 3, further comprising:

the third positioning assembly comprises a third base, a third driving cylinder and a third positioning piece, the third base is in driving connection with the third driving cylinder, and the third positioning piece is movably arranged on the third base between a fifth position and a sixth position;

the second adjusting piece is arranged on the third base and used for adjusting the position of the third positioning piece between the fifth position and the sixth position;

the fourth positioning assembly and the third positioning assembly are oppositely positioned on two sides of the loading platform along the second direction, the fourth positioning assembly comprises a fourth base, a fourth driving cylinder and a fourth positioning piece, the fourth base is in driving connection with the fourth driving cylinder, and the fourth positioning piece is movably arranged on the fourth base between a seventh position and an eighth position; and

and the second elastic piece is arranged between the fourth base and the fourth positioning piece.

5. The positioning fixture according to claim 4, wherein the third positioning assembly further includes a third slide rail mounted on the third base, a third slide block slidably mounted on the third slide rail, and a third elastic member, the third positioning member is mounted on the third slide block to move between the fifth position and the sixth position, a second mounting portion is convexly disposed on a top surface of the third base, the second mounting portion is provided with a second mounting hole, the second adjusting member is mounted in the second mounting hole, a driving end of the second adjusting member is connected to the third positioning member to drive the third positioning member to move between the fifth position and the sixth position, one end of the third elastic member is connected to the top surface of the third base, and the other end of the third elastic member is connected to the third positioning member.

6. The positioning fixture according to claim 5, wherein the third positioning member includes a first connecting seat and a positioning rod extending along the second direction, the first connecting seat is provided with a mounting hole extending along the second direction, the positioning rod is mounted in the mounting hole, the first connecting seat is provided with an adjusting gap for communicating the mounting hole with an external environment, one end of the third elastic member is connected to the first connecting seat, and the other end of the third elastic member is connected to the top surface of the third base.

7. The positioning fixture according to claim 6, wherein a positioning head is disposed at an end of the positioning rod facing the fourth positioning assembly, and a guiding inclined plane is disposed at a side surface of the positioning head, and the guiding inclined plane is inclined from a side portion of the positioning head to a middle portion of the positioning head.

8. The positioning fixture according to claim 4, wherein the fourth positioning assembly further includes a fourth slide rail mounted on the fourth base and a fourth slide block slidably mounted on the fourth slide rail, the fourth positioning member is mounted on the fourth slide block to move between the seventh position and the eighth position, a second protrusion is protruded from a top surface of one end of the fourth base facing away from the third positioning assembly, a third protrusion is protruded from a top surface of the fourth positioning member, the third protrusion has a counter bore, one end of the second elastic member is connected to the second protrusion, and the other end of the second elastic member is connected to the counter bore.

9. The positioning fixture according to claim 8, wherein the fourth positioning element includes a second connecting seat mounted on the fourth sliding block and a positioning rotating block rotatably mounted on the second connecting seat, the third protruding portion is protruded from a top surface of the second connecting seat, the positioning rotating block is cylindrical, and a portion of the positioning rotating block protrudes from a side surface of the second connecting seat facing the material loading platform.

10. A polishing apparatus comprising a carrier table and the positioning jig according to any one of claims 1 to 9.