Strip holding claw type positioning and fixing mechanism

Abstract

The utility model discloses a Strip holding claw type positioning and fixing mechanism, and relates to the technical field of semiconductor packaging and testing. The device comprises a Strip long-side holding claw positioning and fixing mechanism, a pneumatic lifting type Strip placing table mechanism, a pneumatic type positioning and fixing Frame placing table mechanism and a Strip short-side holding claw positioning and fixing mechanism. The Strip long-edge holding claw positioning and fixing mechanism comprises a placing table, a first linear guide rail, a first linear guide rail sliding block, a long-edge holding claw sliding block, a long-edge holding claw lifting plate and a first linear bearing; the Strip short edge holding claw positioning and fixing mechanism comprises a second opening and closing air cylinder, a short edge holding claw lifting bearing seat, a tension spring seat, a second lifting air cylinder and a short edge holding claw. According to the technical scheme, almost various forms of Strips can be compatible, the positioning and fixing precision of the holding claw type positioning and fixing mechanism is relatively better, and the higher-precision film pasting requirement can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of semiconductor packaging and testing, and particularly relates to a Strip claw-type positioning and fixing mechanism. Background Art

[0002] In the semiconductor packaging and testing industry, in the back-end process, the QFN Strip, or substrate, needs to have a film attached to the plastic cover of the substrate before cutting, and the substrate and the frame, or iron ring, need to be attached together through the film. During the film attaching process, the substrate and the iron ring often need to be positioned and fixed to prevent the substrate and the iron ring from shifting during the film attaching process to ensure the accuracy of the film attaching. Based on this positioning and fixing requirement, a set of Strip positioning and fixing mechanisms is required.

[0003] The Strip positioning and fixing mechanism of the existing film laminating equipment on the market mostly adopts marking lines or holes for positioning, and then the vacuum suction cup absorbs the back of the plastic package of the Strip to fix it. This Strip fixing method has limitations, such as Figure 1 As shown, for a Strip with a flat back side of the plastic package, it may be possible to fix it with a suction cup, but for Figure 2 The Strip with a cut line on the back of the plastic package and the Strip with a hollow pin on the back of the plastic package cannot be fixed by suction. In addition, it is also difficult for the vacuum suction cup to fix the Strip with warped ends after plastic packaging. Therefore, in order to solve the above problems, a Strip claw-type positioning and fixing mechanism is provided to solve the above problems. Utility Model Content

[0004] The utility model provides a Strip claw-type positioning and fixing mechanism, which is compatible with almost all forms of Strips, and the positioning and fixing accuracy of the claw-type positioning and fixing mechanism of the technical solution is relatively better, which can meet the requirements of higher precision film pasting, and in summary solves the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a Strip claw type positioning and fixing mechanism, comprising a Strip long side claw positioning and fixing mechanism, a pneumatic lifting Strip placement table mechanism and a pneumatic positioning and fixing Frame placement table mechanism arranged from bottom to top, and a Strip short side claw positioning and fixing mechanism installed between the long side claws on the placement table of the Strip long side claw positioning and fixing mechanism;

[0007] The Strip long side claw positioning and fixing mechanism includes a placement table, a first linear guide rail installed on the placement table to guide the opening and closing movement of the long side claw, a first linear guide rail slider slidably matched with the first linear guide rail, a long side claw slider installed on the first linear guide rail slider and carrying the long side claw, a long side claw lifting plate installed on the long side claw slider, and a first linear bearing fixed on the long side claw slider and guiding the lifting movement of the long side claw; the long side claw is installed on the long side claw lifting plate to position and fix the long side direction of the Strip on the placement table; the long side claw slider is driven by the first opening and closing cylinder and cooperates with the first tension spring to realize the closing and long opening movement of the long side claw; the long side claw lifting plate is driven by the first lifting cylinder at the bottom to realize the lifting movement of the long side claw;

[0008] The Strip short side claw positioning and fixing mechanism comprises a second opening and closing cylinder fixedly mounted on the placement table for driving the short side claw lifting bearing seat to extend and retract, a short side claw lifting bearing seat connected to the top lifting end of the second opening and closing cylinder, a tension spring seat fixedly mounted on the placement table through a tension spring seat bracket and connected to the short side claw lifting bearing seat through a second tension spring, a second lifting cylinder fixedly mounted on the placement table for driving the short side claw lifting block to lift and lower, and a short side claw mounted on the short side claw lifting block; the short side claw lifting block is used to position and fix the short side direction of the Strip placed on the placement table through lifting and opening and closing actions; a second linear bearing for guiding the lifting and lowering movement of the short side claw is fixed on the short side claw lifting bearing seat;

[0009] The pneumatic lifting Strip placement table mechanism includes four sets of lifting pressure cylinders arranged on the placement table to lift the Strip placement table, and a Strip placement table lifting plate installed on the top of the lifting pressure cylinders for fixing the Strip placement table; the Strip placement table is used to carry the Strip to be pasted with film;

[0010] The pneumatic positioning and fixing frame placement table mechanism comprises a frame placement table fixing block fixedly installed on the placement table for supporting the frame placement table, a suction cup installed on the frame placement table for vacuum adsorbing the frame, a third lifting cylinder installed on the placement table for driving the suction cup lifting shaft to achieve lifting movement, a suction cup lifting shaft connected and fixed between the suction cup and the cylinder piston rod of the third lifting cylinder, an elastic positioning pin installed through an elastic positioning pin mounting column, and a cylinder installed on the placement table for driving the frame positioning slider;

[0011] The frame positioning slider carries an elastic positioning pin, is fixedly mounted on the slider of the third linear guide rail, and is driven by the positioning cylinder to realize the positioning movement of the elastic positioning pin on the frame; the third linear guide rail is used to guide the start-up positioning movement of the elastic positioning pin; the positioning cylinder drives the frame positioning sliders on both sides of the frame to realize the positioning movement of the elastic positioning pins on both sides of the frame; the frame placement table carries and fixes the frame that needs to be filmed.

[0012] Furthermore, a second linear guide rail is installed on the placement table through a guide rail mounting plate, and a second linear guide rail slider that is slidably matched with the second linear guide rail is provided on the side of the short-side claw lifting bearing seat.

[0013] Furthermore, a limiting bolt for limiting the unfolding movement of the long side claws is installed on the placing table through a limiting bolt mounting plate.

[0014] Furthermore, the first tension spring is fixedly installed via a tension spring mounting seat.

[0015] Furthermore, the placement table is also provided with an adapter plate for switching lines, a vacuum digital display for displaying the vacuum adsorption value of the Frame suction cup, a pressure digital display for displaying the lifting pressure value of the lifting pressure cylinder, and a vacuum generator for generating vacuum negative pressure in the air path leading to the suction cup.

[0016] Furthermore, the second lifting cylinder is provided with a first air pipe joint; the lifting pressure cylinder is provided with a second air pipe joint; and the third lifting cylinder is provided with a third air pipe joint.

[0017] Furthermore, a third linear bearing for guiding the lifting and lowering movement of the Strip placing table is vertically arranged on the placing table, and a guide shaft for guiding passes through the third linear bearing and the top end of which is connected to the bottom of the Strip placing table.

[0018] Furthermore, the lifting pressure cylinder is provided with a limiting bolt for limiting the lifting movement.

[0019] Furthermore, a motion drag chain is installed on the placement table via a drag chain bracket.

[0020] Furthermore, a proximity switch for detecting the presence or absence of a frame is installed on the frame placement table.

[0021] Furthermore, a signal flag for fixing and detecting whether the frame is positioned successfully is installed on the side of the frame placement table through a positioning inspection signal flag installation plate.

[0022] Furthermore, a positioning baffle is provided on the side of the frame placement table to limit the side of the frame when positioning.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] (1) Compared with the traditional Strip positioning and fixing mechanism, the Strip claw-type positioning and fixing mechanism of the utility model can be compatible with almost all forms of Strips, such as Strips with a flat plastic-encapsulated back, Strips with cut lines on the plastic-encapsulated back, Strips with hollow plastic-encapsulated back parts and pins, and Strips with warped ends, etc.; the positioning and fixing accuracy of this Strip claw-type positioning and fixing mechanism is relatively better, and can meet the requirements of higher precision film application;

[0025] (2) Compared with the traditional Strip marking or hole positioning and vacuum suction cup adsorption and fixation, the positioning and fixation accuracy of this Strip claw-type positioning and fixation mechanism is better and can meet the requirements of higher precision film pasting.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of a substrate with a flat and adsorbable back side of the plastic package;

[0029] Figure 2 It is a structural schematic diagram of a substrate with a cutting path on the back of the plastic package and cannot be adsorbed;

[0030] Figure 3 It is a schematic diagram of the overall structure of the Strip claw-type positioning and fixing mechanism;

[0031] Figure 4 for Figure 3 Exploded diagram of the structure;

[0032] Figure 5 This is a schematic diagram of the Strip long side claw positioning and fixing mechanism structure;

[0033] Figure 6 This is a schematic diagram of the Strip short side claw positioning and fixing mechanism structure;

[0034] Figure 7 for Figure 6 Structural diagram from perspective A;

[0035] Figure 8 It is a schematic diagram of the structure of the pneumatic lifting Strip placement table;

[0036] Fig. 9 This is a schematic diagram of the pneumatic positioning and fixing frame placement table mechanism structure;

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1-Strip long side claw positioning and fixing mechanism, 11-vacuum digital display, 12-long side claw, 13-long side claw lifting plate, 14-long side claw slider, 15-vacuum generator, 16-limit bolt mounting plate, 17-limit bolt, 18-first linear guide, 19-first linear guide slider, 101-first linear bearing, 111-first lifting cylinder, 121-first opening and closing cylinder, 131-first tension spring , 141-tension spring mounting seat, 151-adapter plate, 2-Strip short side claw positioning and fixing mechanism, 21-first air pipe joint, 22-second lifting cylinder, 23-second tension spring, 24-tension spring seat bracket, 25-tension spring seat, 26-second opening and closing cylinder, 27-short side claw lifting block, 28-short side claw, 210-second linear guide rail, 211-guide rail mounting plate, 212-second linear bearing, 213-first Two linear guide sliders, 3-pneumatic lifting Strip placement table mechanism, 31-pressure digital display, 32-second air pipe joint, 33-limit bolt, 34-lifting pressure cylinder, 35-third linear bearing, 36-guide shaft, 37-Strip placement table lifting plate, 38-Strip placement table, 4-pneumatic positioning fixed Frame placement table mechanism, 42-drag chain bracket, 45-proximity switch, 46-cylinder, 47-Frame positioning slider, 48-third linear guide, 49-elastic positioning pin mounting column, 410-elastic positioning pin, 411-positioning cylinder, 412-Frame placement table, 413-suction cup, 414-suction cup lifting shaft, 416-positioning inspection signal flag mounting plate, 417-positioning baffle, 418-third air pipe joint, 419-third lifting cylinder, 420-Frame placement table fixing block. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be understood that terms such as "lifting", "lifting head", "sliding", "both sides" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0041] like Figure 1 As shown, for a Strip with a flat back side of the plastic package, it may be possible to fix it with a suction cup, but for Figure 2 The Strip with a cut line on the back of the plastic package and the Strip with a hollow pin on the back of the plastic package cannot be fixed by suction. In addition, it is also difficult for the vacuum suction cup to fix the Strip with warped ends after plastic packaging.

[0042] See also Figure 3-9 As shown, a Strip claw-type positioning and fixing mechanism of the utility model comprises a Strip long side claw positioning and fixing mechanism 1, a pneumatic lifting Strip placement table mechanism 3 and a pneumatic positioning and fixing Frame placement table mechanism 4 arranged from bottom to top, and a Strip short side claw positioning and fixing mechanism 2 installed between the long side claws 12 on the placement table of the Strip long side claw positioning and fixing mechanism 1;

[0043] The Strip long side claw positioning and fixing mechanism 1 includes a placement table, a first linear guide 18 installed on the placement table to guide the opening and closing movement of the long side claw 12, a first linear guide slider 19 slidably matched on the first linear guide 18, a long side claw slider 14 installed on the first linear guide slider 19 and carrying the long side claw 12, a long side claw lifting plate 13 installed on the long side claw slider 14, and a first linear bearing 101 fixed on the long side claw slider 14 and guiding the lifting movement of the long side claw 12; the long side claw 12 is installed on the long side claw lifting plate 13 to position and fix the long side direction of the Strip on the placement table; the long side claw slider 14 is driven by the first opening and closing cylinder 121 to cooperate with the first tension spring 131 to realize the closing and long opening movement of the long side claw 12; the long side claw lifting plate 13 is driven by the first lifting cylinder 111 at the bottom to realize the lifting movement of the long side claw 12;

[0044] The short side claw positioning and fixing mechanism 2 of the Strip comprises a second opening and closing cylinder 26 fixedly mounted on the placement table for driving the short side claw lifting bearing seat 29 to extend and retract, a short side claw lifting bearing seat 29 connected to the top lifting end of the second opening and closing cylinder 26, a tension spring seat 25 fixedly mounted on the placement table through a tension spring seat bracket 24 and connected to the short side claw lifting bearing seat 29 through a second tension spring 23, a second lifting cylinder 22 fixedly mounted on the placement table for driving the short side claw lifting block 27 to lift and lower, and a short side claw 28 mounted on the short side claw lifting block 27; the short side claw lifting block 27 is used to position and fix the short side direction of the Strip placed on the placement table through lifting and opening and closing actions; a second linear bearing 212 is fixed on the short side claw lifting bearing seat 29 to guide the lifting and lowering movement of the short side claw 28;

[0045] The pneumatic lifting Strip placement table mechanism 3 includes four sets of lifting pressure cylinders 34 arranged on the placement table to lift the Strip placement table 38, and a Strip placement table lifting plate 37 installed on the top of the lifting pressure cylinders 34 for installing and fixing the Strip placement table 38; the Strip placement table 38 is used to carry the Strip to be filmed;

[0046] The pneumatic positioning and fixing frame placement table mechanism 4 includes a frame placement table fixing block 420 fixedly installed on the placement table for supporting the frame placement table 412, a suction cup 413 installed on the frame placement table 412 for vacuum adsorption of the frame, a third lifting cylinder 419 installed on the placement table for driving the suction cup lifting shaft 414 to achieve lifting movement, a suction cup lifting shaft 414 connected and fixed between the suction cup 413 and the cylinder piston rod of the third lifting cylinder 419, an elastic positioning pin 410 installed through an elastic positioning pin mounting column 49, and a cylinder 46 installed on the placement table for driving the frame positioning slider 47.

[0047] The frame positioning slider 47 carries the elastic positioning pin 410, is fixed on the slider of the third linear guide 48, and is driven by the positioning cylinder 411 to realize the positioning movement of the elastic positioning pin 410 on the frame; the third linear guide 48 is used to guide the starting positioning movement of the elastic positioning pin 410; the positioning cylinder 411 drives the frame positioning sliders 47 on both sides of the frame to realize the positioning movement of the elastic positioning pins 410 on both sides of the frame; the frame placement table 412 carries and fixes the frame that needs to be filmed.

[0048] Among them, a second linear guide rail 210 is installed on the placement table through a guide rail mounting plate 211, and a second linear guide rail slider 213 that slides with the second linear guide rail 210 is provided on the side of the short-side claw lifting bearing seat 29.

[0049] Among them, a limiting bolt 17 for limiting the unfolding movement of the long side claws 12 is installed on the placement table through a limiting bolt mounting plate 16.

[0050] The first tension spring 131 is fixedly installed via a tension spring mounting seat 141 .

[0051] The placement table is also provided with an adapter plate 151 for switching lines, a vacuum digital display 11 for displaying the vacuum adsorption value of the Frame suction cup, a pressure digital display 31 for displaying the lifting pressure value of the lifting pressure cylinder 34, and a vacuum generator 15 for generating vacuum negative pressure in the air path leading to the suction cup.

[0052] Among them, the second lifting cylinder 22 is provided with a first air pipe joint 21; the lifting pressure cylinder 34 is provided with a second air pipe joint 32; and the third lifting cylinder 419 is provided with a third air pipe joint 418.

[0053] A third linear bearing 35 for guiding the lifting and lowering movement of the Strip placing platform 38 and a guide shaft 36 for guiding are vertically arranged on the placing platform, the third linear bearing 35 passing through the third linear bearing 35 and the top end of which is connected to the bottom of the Strip placing platform 38 .

[0054] Among them, a limiting bolt 33 for limiting the lifting movement is arranged on the lifting pressure cylinder 34.

[0055] Among them, a motion drag chain is installed on the placement table through a drag chain bracket 42.

[0056] A proximity switch 45 for detecting the presence or absence of a frame is installed on the frame placement table 412 .

[0057] A signal flag for fixing and detecting whether the frame is positioned successfully is installed on the side of the frame placement platform 412 through a positioning inspection signal flag installation plate 416 .

[0058] A positioning baffle 417 is disposed on the side of the frame placement platform 412 to limit the side of the frame when positioning.

[0059] As above Figure 5As shown, Part 11: Vacuum digital display: Displays the vacuum adsorption value of the Frame suction cup. Part 12: Long side claw: Can be lifted, opened and closed to position and fix the long side direction of the Strip on the placement table. Part 13: Long side claw lifting plate: Installs and fixes the long side claw, driven by the cylinder to achieve the lifting and lowering movement of the long side claw. Part 14: Long side claw slider: Carries the long side claw lifting and lowering movement components, installed and fixed on the linear guide slider, driven by the tension spring, can achieve the closing movement of the long side claw; driven by the cylinder, can achieve the opening movement of the long side claw. Part 15: Vacuum generator: Makes the air path leading to the suction cup generate vacuum negative pressure. Part 16: Limit bolt mounting plate: Installs and fixes the limit bolt. Part 17: Limit bolt: Limits the opening movement of the long side claw. Part 8: Linear guide: Guides the opening and closing movement of the long side claw. Part 19: Linear guide slider: Install and fix the long-side claw slider to make it move smoothly along the linear guide. Part 110: Linear bearing: Fixed on the long-side claw slider to guide the lifting and lowering movement of the long-side claw. Part 111: Lifting cylinder: Drive the long-side claw lifting plate to achieve the lifting and lowering movement of the long-side claw. Part 121: Opening and closing cylinder: Drive the long-side claw slider to achieve the opening movement of the long-side claw. Part 131: Tension spring: Pull the long-side claw slider to achieve the closing movement of the long-side claw. Part 141: Tension spring mounting seat: Install and fix the tension spring. Part 151: Adapter plate: Adapter the line on the claw positioning and fixing mechanism;

[0060] As above Figure 6-7 As shown, part 21: air pipe joint: connects the air pipe of the fixed cylinder. Part 22: lifting cylinder: drives the lifting block of the short side claw to realize the lifting and lowering movement of the short side claw. Part 23: tension spring: pulls the lifting bearing seat of the short side claw to realize the closing movement of the short side claw. Part 24: tension spring seat bracket: installs and fixes the tension spring seat. Part 25: tension spring seat: installs and fixes the tension spring. Part 26: opening and closing cylinder: drives the lifting and lowering bearing seat of the short side claw to realize the opening movement of the short side claw. Part 27: short side claw lifting block: installs and fixes the short side claw. Part 28: short side claw: can perform lifting and opening and closing movements to position and fix the short side direction of the Strip on the placement table. Part 29: short side claw lifting bearing seat: carries the lifting and lowering movement components of the short side claw, is installed and fixed on the linear guide slider, driven by the tension spring, can realize the closing movement of the long side claw; driven by the cylinder, can realize the opening movement of the long side claw. Part 210: Linear guide: guides the opening and closing movement of the short-side claw. Part 211: Guide rail mounting plate: installs and fixes the linear guide. Part 212: Linear bearing: fixed on the short-side claw lifting bearing seat, guides the lifting and lowering movement of the short-side claw. Part 213: Linear guide slider: installs and fixes the short-side claw bearing seat, allowing it to move smoothly along the linear guide;

[0061] As above Figure 8 As shown, Part 31: Pressure digital display: displays the lifting pressure values ​​of the four lifting pressure cylinders. Part 32: Air pipe joint: connects and fixes the air pipe of the cylinder. Part 33: Limit bolt: limits the lifting movement of the lifting pressure cylinder. Part 34: Lifting pressure cylinder: lifts the Strip placement table and provides adjustable lifting pressure to the Strip placement table. Part 35: Linear bearing: fixed on the bottom plate, guides the lifting and lowering movement of the Strip placement table. Part 36: Guide shaft: fixed on the lifting plate of the Strip placement table, passes through the linear bearing for guidance. Part 37: Strip placement table lifting plate: installs and fixes the Strip placement table. Part 38: Strip placement table: driven by a cylinder, has adjustable lifting pressure, and carries the Strip to be pasted;

[0062] As above Fig. 9 As shown, part 42: drag chain bracket: fixed on the large base plate, install and fix the motion drag chain of the entire claw positioning mechanism. Part 45: proximity switch: detect whether there is a frame on the frame placement table. Part 46: cylinder: drive the frame positioning slider to realize the positioning of one side of the frame. Part 47: positioning slider: carrying the elastic positioning pin, installed and fixed on the linear guide slider, driven by the positioning cylinder, can realize the positioning movement of the elastic positioning pin on the frame. Part 48: linear guide: guide the pneumatic positioning movement of the elastic positioning pin. Part 49: elastic positioning pin installation column: install and fix the elastic positioning pin on the positioning slider. Part 410: elastic positioning pin: driven by the cylinder to position the frame on the placement table. Part 411: positioning cylinder: drive the positioning sliders on both sides of the frame to realize the positioning movement of the elastic positioning pins on both sides of the frame. Part 412: frame placement table: carry and fix the frame that needs to be filmed. Part 413: suction cup: connected to the vacuum air circuit, vacuum adsorbs the frame. Part 414: Suction cup lifting shaft: connects and fixes the suction cup and the cylinder piston rod. Part 416: Positioning inspection signal flag installation plate: installs and fixes the signal flag used to detect the successful positioning of the frame. Part 417: Positioning baffle: to position the fixed end, limit the side of the frame when positioning. Part 418: Air pipe joint: connects and fixes the air pipe of the suction cup lifting cylinder. Part 419: Lifting cylinder: drives the suction cup lifting shaft to realize the lifting and lowering movement of the suction cup. Part 420: Frame placement table fixing block: connects and fixes the Frame placement table and the large bottom plate for positioning and fixing the claws.

[0063] The working steps of this technical solution are as follows:

[0064] Step 1: Move the Strip and Frame to be laminated and place them on the Strip and Frame placement tables respectively.

[0065] Step 2: The claws of the Strip long side claw positioning and fixing mechanism and the Strip short side claw positioning and fixing mechanism start to open and close the lifting movement at the same time. First, the Strip is closed and positioned under the action of the tension spring, and then driven by the cylinder, the claws are lowered to buckle and clamp the borders of the long and short sides of the Strip, completing the entire positioning and fixing movement of the Strip.

[0066] Step 3: After the proximity switch on the frame placement table detects the presence of the frame, the elastic positioning pins on both sides of the frame will be driven by the cylinder to position the frame closely. After the positioning check sensor receives the positioning success signal, the lifting suction cup under the frame rises to adsorb and fix the positioned frame.

[0067] Step 4: After all actions are completed correctly, you can proceed to the next step of film pasting.

[0068] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A Strip claw-type positioning and fixing mechanism, characterized in that: It comprises a Strip long side claw positioning and fixing mechanism (1), a pneumatic lifting Strip placement platform mechanism (3) and a pneumatic positioning and fixing Frame placement platform mechanism (4) arranged from bottom to top, and a Strip short side claw positioning and fixing mechanism (2) installed between the long side claws (12) on the placement platform of the Strip long side claw positioning and fixing mechanism (1); The Strip long side claw positioning and fixing mechanism (1) comprises a placement platform, a first linear guide rail (18) installed on the placement platform to guide the opening and closing movement of the long side claw (12), a first linear guide rail slider (19) slidably matched with the first linear guide rail (18), a long side claw slider (14) installed on the first linear guide slider (19) and carrying the long side claw (12), a long side claw lifting plate (13) installed on the long side claw slider (14), a long side claw lifting plate (13) fixed on the long side claw slider (14) and guiding the long side claw The first linear bearing (101) guides the lifting and lowering movement of the claw (12); the long side claw (12) is installed on the long side claw lifting plate (13) to position and fix the long side direction of the Strip on the placement table; the long side claw slider (14) is driven by the first opening and closing cylinder (121) and cooperates with the first tension spring (131) to achieve the closing and long opening movement of the long side claw (12); the long side claw lifting plate (13) is driven by the first lifting cylinder (111) at the bottom to achieve the lifting and lowering movement of the long side claw (12); The Strip short side claw positioning and fixing mechanism (2) comprises a second opening and closing cylinder (26) fixedly mounted on the placement table for driving the short side claw lifting bearing seat (29) to extend and retract, a short side claw lifting bearing seat (29) connected to the top lifting end of the second opening and closing cylinder (26), a tension spring seat (25) fixedly mounted on the placement table via a tension spring seat bracket (24) and connected to the short side claw lifting bearing seat (29) via a second tension spring (23), a second lifting cylinder (22) fixedly mounted on the placement table for driving the short side claw lifting block (27) to lift and lower, and a short side claw (28) mounted on the short side claw lifting block (27); the short side claw lifting block (27) is used to position and fix the short side direction of the Strip placed on the placement table through lifting and opening and closing actions; a second linear bearing (212) is fixed on the short side claw lifting bearing seat (29) to guide the lifting and lowering movement of the short side claw (28); The pneumatic lifting type Strip placement table mechanism (3) comprises four sets of lifting pressure cylinders (34) arranged on the placement table for lifting the Strip placement table (38), and a Strip placement table lifting plate (37) installed on the top of the lifting pressure cylinders (34) for installing and fixing the Strip placement table (38); the Strip placement table (38) is used to carry the Strip to be pasted with film; The pneumatic positioning and fixing frame placement platform mechanism (4) comprises a frame placement platform fixing block (420) fixedly mounted on the placement platform for supporting the frame placement platform (412), a suction cup (413) mounted on the frame placement platform (412) for vacuum adsorbing the frame, a third lifting cylinder (419) mounted on the placement platform for driving a suction cup lifting shaft (414) to achieve lifting movement, a suction cup lifting shaft (414) connected and fixed between the suction cup (413) and the cylinder piston rod of the third lifting cylinder (419), an elastic positioning pin (410) mounted via an elastic positioning pin mounting column (49), and a suction cup (413) mounted on the placement platform for driving the frame. me positioning slider (47) cylinder (46); the frame positioning slider (47) carries the elastic positioning pin (410), is fixedly mounted on the slider of the third linear guide rail (48), and is driven by the positioning cylinder (411) to realize the positioning movement of the elastic positioning pin (410) on the frame; the third linear guide rail (48) is used to guide the starting positioning movement of the elastic positioning pin (410); the positioning cylinder (411) drives the frame positioning sliders (47) on both sides of the frame to realize the positioning movement of the elastic positioning pins (410) on both sides of the frame; the frame placement table (412) carries and fixes the frame to be filmed.

2. A Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: A second linear guide rail (210) is installed on the placement table via a guide rail installation plate (211), and a second linear guide rail slider (213) slidably matched with the second linear guide rail (210) is provided on the side of the short-side claw lifting bearing seat (29).

3. The Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: A limiting bolt (17) for limiting the unfolding movement of the long side claws (12) is installed on the placement table via a limiting bolt mounting plate (16).

4. The Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: The first tension spring (131) is fixedly installed via a tension spring mounting seat (141).

5. The Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: The placement table is also provided with an adapter plate (151) for switching lines, a vacuum digital display (11) for displaying the vacuum adsorption value of the frame suction cup, a pressure digital display (31) for displaying the lifting pressure value of the lifting pressure cylinder (34), and a vacuum generator (15) for generating a vacuum negative pressure in the air path leading to the suction cup.

6. The Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: The placement platform is vertically provided with a third linear bearing (35) for guiding the lifting and lowering movement of the Strip placement platform (38), and a guide shaft (36) passing through the third linear bearing (35) and having its top end connected to the bottom of the Strip placement platform (38) for guidance.

7. The Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: The frame placement platform (412) is provided with a proximity switch (45) for detecting the presence or absence of a frame.

8. The Strip claw type positioning and fixing mechanism according to claim 1, characterized in that: The side of the frame placement platform (412) is provided with a positioning baffle (417) for limiting the side of the frame when positioning.

Images