Special-shaped polaroid edge grinding machine jig

Abstract

The utility model provides a special-shaped polaroid edge grinding machine jig, and relates to the technical field of polaroid machining equipment, the special-shaped polaroid edge grinding machine jig comprises a clamp, the clamp comprises two jig supports, a pressing mechanism and a fixing disc, the two jig supports are symmetrically arranged in the length direction, the two ends of the fixing disc in the length direction are fixed to the upper portions of the two jig supports respectively, and the pressing mechanism is arranged on the fixing disc. The number of the pressing mechanisms is two, the two pressing mechanisms are located at the two ends of the fixing disc in the width direction respectively, each pressing mechanism comprises a pressing part and a sliding part, each pressing part comprises a fixing base and a C-shaped structural part, and an opening of each C-shaped structural part points to the fixing disc; a driving device for driving the C-shaped structural part to slide downwards is arranged on the fixing base, and the sliding part is arranged on the jig support and used for driving the sliding part to slide. Horizontal driving and lifting driving of the pressing part are both hidden in the mechanism, the structure is compact, the pressing head is of a C-shaped structure, stress is uniform, deformation is not prone to occurring, and pressing is stable.

Description

Technical Field

[0001] This utility model relates to the technical field of polarizer processing equipment, and in particular to a jig for an edge grinding machine for irregularly shaped polarizers. Background Technology

[0002] A polarizer edge grinding machine is a specialized device for processing the edges of polarizers. Its main function is to grind the edges of polarizers after they have been cut by blades, achieving high dimensional accuracy, clean and neat edges, and no residue, meeting high-quality requirements. This equipment uses a rotating grinding disc and grinding head to finely process the edges of polarizers, suitable for processing polarizers required in fields such as displays. During the edge grinding process, the polarizer needs to be fixed, which requires the use of a clamp. The main function of the clamp is to hold the polarizer in place, ensuring it does not shift during grinding, thereby improving grinding accuracy and uniformity. If the clamp is poorly designed or not securely held, the polarizer may move during grinding, causing positional shifts and affecting the quality of the polarizer. Furthermore, the clamp protects unprocessed parts of the polarizer from damage. Therefore, selecting and designing a suitable clamp is crucial for improving the processing efficiency and product quality of the polarizer edge grinding machine.

[0003] As disclosed in utility model application No. 201920272436.4, the horizontal moving mechanism of a grinding machine adopts a screw drive structure. A servo motor drives the screw to rotate, and a nut, in conjunction with the screw, drives the moving seat to reciprocate horizontally on a horizontal slide rail. Compared to traditional cylinder-driven systems, this design has less impact, effectively improving work stability and facilitating control of the stroke distance to ensure work accuracy. It also features first and second side positioning devices for convenient and rapid product positioning. However, because its horizontal moving mechanism uses a screw drive structure, it occupies a large amount of machine space. Furthermore, the cantilever pressure bar structure is prone to deformation during use, resulting in insufficient clamping of the polarizer and affecting the grinding effect. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems existing in the prior art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A fixture for an irregularly shaped polarizing film edge grinding machine includes a clamp, which comprises a fixture support, a pressing mechanism, and a fixed plate. Two fixture supports are provided, symmetrically arranged along their length. The fixed plate is fixed at both ends along its length above the two fixture supports. Two pressing mechanisms are provided, located at both ends along the width of the fixed plate. Each pressing mechanism includes a pressing part and a sliding part. The pressing part includes a fixed seat and a C-shaped structural member. The fixed seat is used to fix the C-shaped structural member, the opening of which points towards the fixed plate. The fixed seat is provided with a driving device for driving the C-shaped structural member to slide downwards. The sliding part is disposed on the fixture support for driving the sliding part to slide.

[0007] Preferably, the fixing base includes three vertical fixing plates and one horizontal fixing plate. The three vertical fixing plates are arranged in a U-shape with an opening on one side, and the openings of the three vertical fixing plates point towards the fixing disk. The horizontal fixing plate is located above the vertical fixing plates. The driving device includes a sliding structure on the vertical fixing plate opposite to the fixing disk and a vertical cylinder located below the horizontal fixing plate. One end of the sliding structure is fixed to the rear plate, and the other end is fixed to the C-shaped structure. The main body of the vertical cylinder is fixed to the horizontal fixing plate, and the piston rod of the vertical cylinder is located on the lower side wall of the C-shaped structure.

[0008] Preferably, the upper sidewall of the C-shaped structure is provided with an extension arm towards the fixed plate, and the extension arm is provided with a downward-pointing rubber pad at the end away from the C-shaped structure.

[0009] Preferably, the fixing base further includes two side wing plates, which are vertically fixed to two opposing vertical fixing plates on opposite sides. An extension column extends outward from the side of the side wing plate away from the vertical fixing plates. The extension column is located at one end or the middle of the length direction of the wing plate. The sliding part drives the sliding of the pressing part by driving the sliding of the extension column.

[0010] Preferably, the sliding part includes a cylinder fixing plate extending downward at both ends of one of the horizontal support plates along its length direction and a horizontal cylinder located on the cylinder fixing plate. The main body of the horizontal cylinder is fixed on the cylinder fixing plate, and the piston rod of the horizontal cylinder is fixed on the extension column of the wing plate.

[0011] Preferably, the sliding part further includes a sliding track located below the horizontal support plate and a slider disposed above the wing plate that slides along the length direction of the sliding track.

[0012] Preferably, a limiting part is further provided below the fixture support. The limiting part is located below the horizontal support plate on the other side. The limiting part includes a limiting plate, and a buffer support is fixed on the limiting plate. The length direction of the buffer support is consistent with the length direction of the horizontal support plate. The buffer support is used to abut against the extension column on the wing plate. Each extension column of the wing plate corresponds to two buffer supports. The two buffer supports are located at both ends of the sliding direction of the extension column.

[0013] Preferably, it further includes an upper alignment mechanism located above the clamp. The upper alignment mechanism includes a fixed support, a linear guide rail, a lifting cylinder, and an alignment plate. The fixed support is fixedly installed. The linear guide rail is located between the fixed support and the alignment plate to guide the movement of the alignment plate. The lifting cylinder is used to drive the alignment plate to slide vertically. There are two alignment plates, which are perpendicular to each other.

[0014] Preferably, there are two fixed supports, two linear guide rails, and two linear guide rails corresponding to the fixed supports. There are also two alignment plates, one of which is U-shaped. The two side walls of the U-shaped alignment plate are connected to the two linear guide rails respectively. The main body of the lifting cylinder is fixed on the fixed support, and the piston rod of the lifting cylinder is connected to the U-shaped alignment plate to drive the U-shaped alignment plate to slide up and down.

[0015] Preferably, the other alignment plate is square, perpendicular to the U-shaped alignment plate, and located at the bottom of one end of the U-shaped alignment plate along its length.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] 1. Employs a dual-fixture support and dual-linear guide rail structure. This results in a more stable structure and higher alignment accuracy.

[0018] 2. The pressing head translation and lifting cylinders are both concealed within the mechanism, resulting in a compact structure;

[0019] 3. The pressure head adopts a C-shaped structure. This ensures even force distribution, prevents deformation, and provides stable pressing.

[0020] 4. The polarizer placement platform is equipped with a vacuum adsorption function to prevent the polarizer from slipping during edge grinding, which would affect the grinding effect;

[0021] 5. Employs a CNC control system. Can adapt to the edge grinding requirements of irregularly shaped polarizers. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of the alignment mechanism on the fixture of the irregular polarizer edge grinding machine in one embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the jig fixture for the irregular polarizer edge grinding machine in one embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the fixture of the irregular polarizer edge grinding machine from another angle in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram showing the disassembled structure of the pressing part of the fixture for the irregular polarizer edge grinding machine in one embodiment of this utility model.

[0026] Legend: 1. Upper alignment mechanism; 11. Fixed support; 12. Linear guide rail; 13. Lifting cylinder; 14. Alignment plate; 2. Fixture; 21. Fixture support; 211. Horizontal support plate; 2111. Sliding rail; 2112. Cylinder fixing plate; 2113. Horizontal cylinder; 212. Vertical support plate; 22. Pressing mechanism; 221. Pressing part; 2211. Fixed seat; 221 2. C-shaped structural component; 22121. Extension arm; 22122. Rubber pad; 2213. Vertical fixing plate; 22131. Sliding structure; 2214. Horizontal fixing plate; 22141. Vertical cylinder; 2215. Wing plate; 2216. Extension column; 222. Sliding part; 223. Limiting part; 2231. Limiting plate; 2232. Buffer support column; 23. Fixing plate; 3. Polarizing film. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments.

[0028] Please see Figure 1 and Figure 2 A jig for grinding irregularly shaped polarizing film 3 is used to fix the ground irregularly shaped polarizing film 3. It includes an upper alignment mechanism 1 and a clamp 2. The upper alignment mechanism 1 is located above the clamp 2. The upper alignment mechanism 1 is used to fix the position of the polarizing film 3 in the horizontal direction. The clamp 2 is used to fix the position of the polarizing film 3 in the vertical direction.

[0029] Please see Figure 1The upper alignment mechanism 1 includes a fixed support 11, a linear guide rail 12, a lifting cylinder 13, and an alignment plate 14. Two fixed supports 11 are provided, fixed to a frame device (not shown in the figure). Two linear guide rails 12 are provided, corresponding to the fixed supports 11, with each linear guide rail located on one side of the fixed support 11. Two alignment plates 14 are provided, one of which... One of the alignment plates 14 is U-shaped, while the other is square. The U-shaped alignment plate 14 has its two side walls connected to two linear guide rails 12. The U-shaped alignment plate 14 slides along the vertical direction of the fixed support 11 via the linear guide rails 12. The lifting cylinder 13 is fixed to the fixed support 11, and its piston rod is connected to the U-shaped alignment plate 14 to drive its upward and downward sliding. The square alignment plate 14 is perpendicular to the U-shaped alignment plate 14 and located at the bottom of one end of the U-shaped alignment plate 14 along its length.

[0030] Please see Figure 2 The fixture 2 includes a jig support 21, a pressing mechanism 22, and a fixing plate 23. The jig support 21 supports the pressing mechanism 22 and the fixing plate 23. The fixing plate 23 receives the polarizer 3. The pressing mechanism 22 presses and fixes the polarizer 3 onto the fixing plate 23, thereby fixing the vertical position of the polarizer 3.

[0031] Please see Figure 2 Two fixture supports 21 are provided, and the two fixture supports 21 are symmetrically arranged along their length direction. Each fixture support 21 includes a horizontal support plate 211 and two vertical support plates 212. The two vertical support plates 212 are located below the horizontal support plate 211 and are arranged in an array along the length direction of the horizontal support plate 211.

[0032] The fixing plate 23 is located above the horizontal support plate 211. In one embodiment, the two ends of the fixing plate 23 along its length are respectively fixed to the horizontal support plate 211 on the two fixture supports 21. Specifically, the fixing plate 23 is fixed to the horizontal support plate 211 by countersunk bolts. To facilitate the fixing of the polarizer 3, a vacuum adsorption device is also provided above the fixing plate 23.

[0033] Please see Figure 3Two pressing mechanisms 22 are provided, and the two pressing mechanisms 22 are respectively located at both ends of the width direction of the fixed plate 23. Each pressing mechanism 22 includes a pressing part 221, a sliding part 222, and a limiting part 223. The pressing part 221 is slidably disposed along the length direction of the fixture support 21. The sliding part 222 is used to drive the sliding of the pressing part 221. The limiting part 223 is used to limit the sliding of the pressing part 221.

[0034] In one embodiment, the pressing part 221 includes a fixing base 2211 and a C-shaped structural member 2212. The fixing base 2211 is used to fix the C-shaped structural member 2212. The opening of the C-shaped structural member 2212 points towards the fixing plate 23. The fixing base 2211 includes three vertical fixing plates 2213, one horizontal fixing plate 2214, and two side wing plates 2215. The three vertical fixing plates 2213 are arranged in a U-shape with one side opening, and the openings of the three vertical fixing plates 2213 point towards the fixing plate 23. The three vertical fixing plates 2213 are the rear plate and the two side plates.

[0035] The horizontal fixing plate 2214 is located above the vertical fixing plate 2213. The two wing plates 2215 are horizontally arranged and fixed to the side opposite to each other on the side plate. An extension column 2216 is provided on the side of the two wing plates 2215 opposite to the side plate, and the extension column 2216 is located at one end or the middle of the length direction of the wing plate 2215.

[0036] A sliding structure 22131 is provided on the rear plate. One end of the sliding structure 22131 is fixed to the rear plate, and the other side is fixed to the C-shaped structure, which is used to guide the vertical sliding of the C-shaped structure. A vertical cylinder 22141 is provided below the horizontal fixing plate 2214. The main body of the vertical cylinder 22141 is fixed to the horizontal fixing plate 2214, and the piston rod of the vertical cylinder 22141 is located on the lower side wall of the C-shaped structure, which is used to drive the C-shaped structure to slide in the vertical direction.

[0037] An extension arm 22121 is provided on the upper side wall of the C-shaped structure towards the fixed plate 23, and a downward-pointing rubber pad 22122 is provided on the end of the extension arm 22121 away from the C-shaped structure.

[0038] In one embodiment, to achieve horizontal sliding of the pressing part 221, the sliding part 222 includes a sliding track 2111 located below the horizontal support plate 211 and a slider disposed above the wing plate 2215 that slides along the length of the sliding track 2111. The sliding part 222 also includes a cylinder fixing plate 2112 extending downward at both ends of one of the horizontal support plates 211 along its length and a horizontal cylinder 2113 located on the cylinder fixing plate 2112. The main body of the horizontal cylinder 2113 is fixed to the cylinder fixing plate 2112, and the piston rod of the horizontal cylinder 2113 is fixed to the extension post 2216 of the wing plate 2215. The sliding of the wing plate 2215 is driven by the horizontal cylinder 2113, thereby driving the overall movement of the pressing part 221.

[0039] In one embodiment, the limiting part 223 is disposed below the horizontal support plate 211 on the other side. The limiting part 223 includes a limiting plate 2231, on which a buffer support column 2232 is fixed. The length direction of the buffer support column 2232 is consistent with the length direction of the horizontal support plate 211. The buffer support column 2232 is used to abut against the extension column 2216 on the wing plate 2215. Each extension column 2216 of the wing plate 2215 corresponds to two buffer supports 2232. The two buffer supports 2232 are located at both ends of the sliding direction of the extension column 2216.

[0040] Working principle:

[0041] The polarizer 3 is placed on the fixed plate 23 and vacuum adsorption is activated. One of the horizontal cylinders 2113 is driven to move the pressing part 221 to the pressing position. The vertical cylinder 22141 drives the C-shaped structure on the pressing part 221 to move downward, so that the rubber pad 22122 presses the polarizer 3. The lifting cylinder 13 of the alignment plate 14 drives the two alignment plates 14 to move to the waiting position; one side is ground.

[0042] After pressing is completed, drive the horizontal cylinder 2113 on the other side to move the pressing part 221 to the pressing position, repeat the above action, and then remove the originally fixed pressing part 221 to start the other side of the mold. After the edge grinding is completed, manually remove the ground polarizer 3.

[0043] The fixture for grinding irregularly shaped polarizing film 3 provided in this application has both the horizontal drive and the lifting drive of the pressing part 221 concealed within the mechanism, resulting in a compact structure. Furthermore, the pressing head adopts a C-shaped structure, which ensures uniform force distribution, resistance to deformation, and stable pressing. In addition, a vacuum adsorption function is added to the fixed plate 23 to prevent the polarizing film 3 from sliding during grinding, thus affecting the grinding effect.

Claims

1. A fixture for an edge grinding machine for irregularly shaped polarizing films, characterized in that: The fixture includes a jig support, a pressing mechanism, and a fixed plate. Two jig supports are symmetrically arranged along their length. The fixed plate is fixed at both ends above the two jig supports along its length. Two pressing mechanisms are located at both ends of the fixed plate along its width. Each pressing mechanism includes a pressing part and a sliding part. The pressing part includes a fixed base and a C-shaped structural member. The fixed base is used to fix the C-shaped structural member, and the opening of the C-shaped structural member points towards the fixed plate. The fixed base is provided with a driving device to drive the C-shaped structural member to slide downwards. The sliding part is disposed on the jig support to drive the sliding part to slide.

2. The fixture for an irregularly shaped polarizing film edge grinding machine according to claim 1, characterized in that: The fixing base includes three vertical fixing plates and one horizontal fixing plate. The three vertical fixing plates are arranged in a U-shape with an opening on one side, and the openings of the three vertical fixing plates point towards the fixing plate. The horizontal fixing plate is located above the vertical fixing plates. The driving device includes a sliding structure on the vertical fixing plate opposite to the fixing plate and a vertical cylinder located below the horizontal fixing plate. One end of the sliding structure is fixed to the rear plate, and the other end is fixed to the C-shaped structure. The main body of the vertical cylinder is fixed to the horizontal fixing plate, and the piston rod of the vertical cylinder is located on the lower side wall of the C-shaped structure.

3. The fixture for an irregularly shaped polarizing film edge grinding machine according to claim 2, characterized in that: An extension arm is provided on the upper side wall of the C-shaped structure towards the fixed plate, and a downward-pointing rubber pad is provided on the end of the extension arm away from the C-shaped structure.

4. The fixture for an irregularly shaped polarizing film edge grinding machine according to claim 3, characterized in that: The fixing base also includes two side wing plates, which are vertically fixed to two opposing vertical fixing plates on opposite sides. An extension column extends outward from the side of the side wing plate away from the vertical fixing plates. The extension column is located at one end or the middle of the length direction of the wing plate. The sliding part drives the sliding of the pressing part by driving the sliding of the extension column.

5. The fixture for an irregularly shaped polarizing film edge grinding machine according to claim 4, characterized in that: Each of the fixture supports includes a horizontal support plate and two vertical support plates. The two vertical support plates are located below the horizontal support plate and are arranged in an array along the length direction of the horizontal support plate. The sliding part includes a cylinder fixing plate extending downward from both ends of the horizontal support plate and a horizontal cylinder on each cylinder fixing plate. The main body of the horizontal cylinder is fixed on the cylinder fixing plate, and the piston rod of the horizontal cylinder is fixed on the extension column of the wing plate.

6. The fixture for an irregularly shaped polarizing film edge grinding machine according to claim 5, characterized in that: The sliding part also includes a sliding track located below the horizontal support plate and a slider disposed above the wing plate that slides along the length direction of the sliding track.

7. The fixture for an irregularly shaped polarizing film edge grinding machine according to claim 6, characterized in that: A limiting part is also provided below the fixture support. The limiting part is located below the horizontal support plate on the other side. The limiting part includes a limiting plate, and a buffer support is fixed on the limiting plate. The length direction of the buffer support is consistent with the length direction of the horizontal support plate. The buffer support is used to abut against the extension column on the wing plate. Each extension column of the wing plate corresponds to two buffer supports. The two buffer supports are located at both ends of the sliding direction of the extension column.

8. A fixture for an irregularly shaped polarizing film edge grinding machine according to claim 7, characterized in that: It also includes an upper alignment mechanism located above the clamp. The upper alignment mechanism includes a fixed support, a linear guide rail, a lifting cylinder, and an alignment plate. The fixed support is fixedly installed. The linear guide rail is located between the fixed support and the alignment plate to guide the movement of the alignment plate. The lifting cylinder is used to drive the alignment plate to slide vertically. There are two alignment plates, which are perpendicular to each other.

9. A fixture for an irregularly shaped polarizing film edge grinding machine according to claim 8, characterized in that: Two fixed supports and two linear guide rails are provided, with each linear guide rail corresponding to one of the fixed supports. Two alignment plates are provided, one of which is U-shaped. The two side walls of the U-shaped alignment plate are respectively connected to the two linear guide rails. The main body of the lifting cylinder is fixed on the fixed support, and the piston rod of the lifting cylinder is connected to the U-shaped alignment plate for driving the U-shaped alignment plate to slide up and down.

10. A fixture for an irregularly shaped polarizing film edge grinding machine according to claim 9, characterized in that: The other alignment plate is square in shape, perpendicular to the U-shaped alignment plate, and located at the bottom of one end of the U-shaped alignment plate along its length.

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