Multi-point clamping fixture of chip plastic packaging machine

Abstract

The utility model relates to the technical field of chip plastic packaging, in particular to a multi-point clamping fixture of a chip plastic packaging machine, which comprises a tray-free fixing plate, a plurality of fixture mounting holes are arranged on the upper surface of the tray-free fixing plate, a pair of transverse frames are mounted inside the fixture mounting holes, and double-cylinder mounting seats are fixedly mounted on the pair of transverse frames. Two first clamping jaws are mounted in each double-cylinder mounting seat, single-cylinder mounting seats are fixedly mounted on the inner walls of the left side and the right side of the clamp mounting hole, and second clamping jaws are mounted in the single-cylinder mounting seats; two strip-shaped boxes are symmetrically arranged on the upper surface of the tray-free fixing plate left and right, and a plurality of correlation type photoelectric sensors are mounted in each strip-shaped box; a pair of spring pieces is fixed to the bottom end of the inner wall of each clamp mounting hole, a clamping block is fixed to the outer end of each spring piece, and a light blocking piece is fixed to the top end of each clamping block. According to the utility model, whether a chip product is well placed can be detected, the detection precision is high, and the intelligent degree is high.

Description

Technical Field

[0001] The utility model relates to the technical field of chip plastic packaging, in particular to a multi-point clamping fixture for a chip plastic packaging machine. Background Art

[0002] Chips refer to silicon wafers containing integrated circuits. They are very small and are often part of computers or other electronic devices. During chip processing, they are plasticized by a plastic packaging machine. With the development of the integrated circuit industry, the market demand for chip plastic packaging machines is also gradually increasing. Chip plastic packaging machines are usually equipped with a clamping fixture inside. The clamping fixture mainly places the mold on the substrate where the chip is placed, and then places the chip by grabbing the component, which facilitates the plastic packaging operation.

[0003] A frame clamp for IC chip plastic packaging is disclosed in the Chinese utility model patent application disclosure CN216422297U, including a frame clamp, the frame clamp including a mounting clamp and an unloading jig, the upper end of the unloading jig is provided with a mounting clamp, and the upper end of the mounting clamp is provided with a finished product; the mounting clamp includes a frame, a cross bar, a vertical bar, a fixing block and a handle, wherein four groups of placement grooves are provided in the middle of the frame, two groups of cross bars are provided at the left and right ends of the placement groove, four groups of vertical bars are provided at the front and rear ends of the placement groove, two groups of fixing blocks are provided at the lower end of the frame, and a handle is provided in the middle of the fixing block; however, the prior art still has some shortcomings, for example: chip products often have the problem of not being placed in place, and it is also easy to cause the chip products to be deformed and damaged by clamping. Utility Model Content

[0004] The utility model aims to provide a multi-point clamping fixture for a chip plastic packaging machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-point clamping fixture for a chip laminator, comprising a trayless fixing plate, a plurality of fixture mounting holes being provided on the upper surface of the trayless fixing plate, a pair of cross frames being installed inside the fixture mounting holes, and a double-cylinder mounting seat being fixedly installed on each of the pair of cross frames, two first clamping jaws being installed in each of the double-cylinder mounting seats, single-cylinder mounting seats being fixedly installed on the left and right inner walls of the fixture mounting hole, and a second clamping jaw being installed in each of the single-cylinder mounting seats;

[0007] Two strip boxes are symmetrically arranged on the left and right sides of the upper surface of the trayless fixed plate, and a number of through-beam photoelectric sensors are installed inside each of the strip boxes; a pair of spring sheets are fixed to the bottom end of the inner wall of the clamp mounting hole, and a clamp block is fixed to the outer end of each of the spring sheets, and a light-blocking sheet is fixed to the top of the clamp block.

[0008] As a further improvement to the above solution, a plurality of light holes are provided on opposite sides of a pair of the strip boxes, and the light holes are arranged opposite to the infrared emitting ends of the opposing photoelectric sensors.

[0009] As a further improvement to the above scheme, the first jaw and the second jaw are each driven by a threaded cylinder, and the first jaw and the second jaw structure both include a locating pin, a torsion spring and a jaw body, the locating pin is rotatably mounted on the double-cylinder mounting seat or the single-cylinder mounting seat, the jaw body is fixed to the outer wall of the locating pin, and the torsion spring is sleeved on the outer wall of the locating pin.

[0010] As a further improvement to the above solution, the power arm of the clamp body is fixed to the telescopic end of the threaded cylinder, and the end of the resistance arm of the clamp body is used to clamp the chip.

[0011] As a further improvement to the above scheme, several of the threaded cylinders are connected in series by air pipes, and the top of each threaded cylinder is connected to an air source connector, and the outer wall of each threaded cylinder is installed with a limiting screw.

[0012] As a further improvement to the above solution, a plurality of rotation pins are further installed on the upper surface of the trayless fixing plate, a rotating frame is fixed to the outer wall of each rotation pin, and a fixing seat is further installed on the outer wall of the rotating frame.

[0013] As a further improvement to the above solution, the outer side wall of the fixing seat is fixed to the double-cylinder mounting seat, and a sensor bracket is also fixedly mounted on the outer side wall of the fixing seat, and a reflective photoelectric sensor is mounted on the sensor bracket.

[0014] As a further improvement to the above scheme, the upper surface of the trayless fixing plate is also provided with a plurality of main airflow ducts, the upper side walls of the main airflow ducts are connected to a plurality of air outlet connectors, and the outer side walls of the main airflow ducts are connected to air inlet connectors.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model installs a plurality of through-beam photoelectric sensors inside the left and right strip boxes, a pair of spring sheets are fixed to the bottom end of the inner wall of the fixture installation hole, and a clamping block is fixed to the outer end of each spring sheet, and a light-blocking sheet is fixed to the top of the clamping block. When the chip product is not placed in place and tilts up, the spring sheet will be bent and lifted up, and the light-blocking sheet will move upward for a distance and block the infrared rays of the through-beam photoelectric sensor, so that the through-beam photoelectric sensor generates a "not in place" warning signal and transmits it to the chip plastic sealing machine main control system, so that the utility model can detect whether the chip product is placed well, and the detection accuracy is high and the degree of intelligence is high.

[0017] 2. The utility model utilizes the first clamping jaw to locate the long side direction of the chip product, utilizes the second clamping jaw to locate the short side direction of the chip product, and utilizes the air pipe to connect several threaded cylinders in series, and drives the first clamping jaw and the second clamping jaw to open by ventilating the threaded cylinder. After the threaded cylinder is de-energized, the clamping jaw body relies on the torsion spring to reset, and relies on the torsion spring force to clamp the chip product. The elastic force grasping does not affect the deformation of the sheet. Compared with the driving cylinder to clamp the product directly, the spring grasping is flexible and will not cause damage to the chip product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0020] Figure 2 This is a schematic diagram of the third perspective structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from a third viewing angle;

[0022] Figure 4 It is a schematic diagram of the structural assembly of a clamping unit in the utility model;

[0023] Figure 5 This is a schematic diagram of the installation of the spring sheet, the clamping block and the light shielding plate in the utility model;

[0024] Figure 6 It is a schematic diagram of the installation of the double-cylinder mounting base and the first clamping jaw in the utility model;

[0025] Figure 7It is a schematic diagram of the installation of the single cylinder mounting seat and the second clamping jaw in the utility model.

[0026] In the figure: 1-trayless fixing plate, 2-fixture mounting hole, 3-double-cylinder mounting seat, 4-single-cylinder mounting seat, 5-first clamping jaw, 6-second clamping jaw, 7-threaded cylinder, 8-air source connector, 9-limit screw, 10-strip box, 11-through-beam photoelectric sensor, 12-spring sheet, 13-clamping block, 14-light shielding sheet, 15-light hole, 16-rotating pin, 17-rotating frame, 18-fixing seat, 19-sensor bracket, 20-air flow main pipeline, 21-air outlet connector, 22-air inlet connector, 23-cross frame;

[0027] 501-locating pin, 502-torsion spring, 503-clamp body. DETAILED DESCRIPTION

[0028] 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 in 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.

[0029] The utility model provides a multi-point clamping fixture for a chip plastic packaging machine, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a trayless fixing plate 1, and a plurality of clamp mounting holes 2 are opened on the upper surface of the trayless fixing plate 1. A pair of cross frames 23 are installed inside the clamp mounting hole 2, and a double-cylinder mounting seat 3 is fixedly installed on the pair of cross frames 23. Two first clamping jaws 5 are installed in the double-cylinder mounting seat 3. The left and right inner walls of the clamp mounting hole 2 are fixedly installed with a single-cylinder mounting seat 4, and a second clamping jaw 6 is installed in the single-cylinder mounting seat 4. The first clamping jaw 5 and the second clamping jaw 6 are each driven by a threaded cylinder 7. The first clamping jaw 5 and the second clamping jaw 6 structure include a positioning pin 501, a torsion spring 502 and a clamping jaw body 503. The positioning pin 501 is rotatably installed on the double-cylinder mounting seat 3 or the single-cylinder mounting seat 4. The outer wall of the positioning pin 501 is fixed with a clamping jaw body 503, and The torsion spring 502 is sleeved on the outer wall of the positioning pin 501; the power arm of the clamp body 503 is fixed to the telescopic end of the threaded cylinder 7, and the end of the resistance arm of the clamp body 503 is used to clamp the chip; several threaded cylinders 7 are connected in series by air pipes, and the top of each threaded cylinder 7 is connected to an air source connector 8, and the outer wall of each threaded cylinder 7 is installed with a limit screw 9, which limits the installation depth of the threaded cylinder 7; the threaded cylinder 7 can be ventilated to drive the first clamp 5 and the second clamp 6 to open, and after the threaded cylinder 7 is cut off, the clamp body 503 relies on the reset of the torsion spring 502 and relies on the torsion spring force to clamp the chip product, and the elastic force grasping does not affect the deformation of the sheet.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, two strip boxes 10 are symmetrically arranged on the left and right of the upper surface of the tray-free fixing plate 1, and a plurality of through-beam photoelectric sensors 11 are installed inside each strip box 10; a pair of spring sheets 12 are fixed to the bottom end of the inner wall of the fixture mounting hole 2, and a clamping block 13 is fixed to the outer end of each spring sheet 12, and a light blocking sheet 14 is fixed to the top of the clamping block 13; a plurality of light holes 15 are opened on the opposite sides of the pair of strip boxes 10, and the light holes 15 are arranged opposite to the infrared emitting end of the through-beam photoelectric sensor 11; when the chip product is placed in place, the spring sheet 12 is in a horizontal state, and the light blocking sheet 14 on the top of the clamping block 13 will not The infrared rays of the through-beam photoelectric sensor 11 are blocked, so that the first clamping jaw 5 and the second clamping jaw 6 can normally clamp the chip product; when the chip product is not placed in place and is tilted, the spring sheet 12 will be bent upward and lifted up, and the light blocking sheet 14 will move upward for a distance and block the infrared rays of the through-beam photoelectric sensor 11, so that the through-beam photoelectric sensor 11 generates a "not in place" warning signal and transmits it to the chip plastic sealing machine main control system. The plastic sealing machine main control system will not start the first clamping jaw 5 and the second clamping jaw 6. Therefore, the utility model can detect whether the chip product is placed properly, and the detection accuracy is high and the degree of intelligence is high.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, a plurality of rotating pins 16 are also installed on the upper surface of the palletless fixing plate 1, and a rotating frame 17 is fixed to the outer wall of each rotating pin 16, and a fixing seat 18 is also installed on the outer wall of the rotating frame 17, and the fixing seat 18 can be disassembled and fixedly installed with the palletless fixing plate 1; the outer wall of the fixing seat 18 is fixed to the double-cylinder mounting seat 3, and a sensor bracket 19 is also fixedly installed on the outer wall of the fixing seat 18, and a reflective photoelectric sensor is installed on the sensor bracket 19; wherein, the setting of the rotating pin 16 and the rotating frame 17 is for the convenience of first disassembling the fixing seat 18 from the palletless fixing plate 1, and then rotating the double-cylinder mounting seat 3 upwards when the first clamping jaw 5 on the double-cylinder mounting seat 3 fails, so that maintenance is very convenient.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the upper surface of the trayless fixing plate 1 is also provided with a plurality of main airflow ducts 20, the upper side walls of the main airflow ducts 20 are connected with a plurality of air outlet joints 21, and the outer side walls of the main airflow ducts 20 are connected with air inlet joints 22. The main airflow ducts 20, the air outlet joints 21 and the air inlet joints 22 are all provided to facilitate ventilation of each threaded cylinder 7.

[0033] The working principle of the utility model is as follows: first, the trayless fixing plate 1 is moved to the top of the chip product. Since the upper surface of the trayless fixing plate 1 is provided with a plurality of fixture mounting holes 2, a pair of cross frames 23 are installed inside the fixture mounting holes 2, and a double-cylinder mounting seat 3 is fixedly installed on the pair of cross frames 23, and two first clamping jaws 5 are installed in the double-cylinder mounting seat 3. The left and right inner walls of the fixture mounting hole 2 are fixedly installed with a single-cylinder mounting seat 4, and a second clamping jaw 6 is installed in the single-cylinder mounting seat 4. The first clamping jaw 5 and the second clamping jaw 6 are each threaded. The threaded cylinder 7 is driven by a plurality of threaded cylinders 7 connected in series by an air pipe. After the threaded cylinder 7 is ventilated, it can drive the first clamp 5 and the second clamp 6 to open simultaneously and just be located around the chip product, wherein the first clamp 5 is used to position the chip product in the long side direction, and the second clamp 6 is used to position the chip product in the short side direction; after the threaded cylinder 7 is de-energized, the clamp body 503 relies on the reset of the torsion spring 502 and relies on the torsion spring force to clamp the chip product, and the use of elastic force to grasp will not affect the deformation of the sheet, nor will it cause damage to the product.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-point clamping fixture for a chip laminator, comprising a trayless fixing plate (1), Features: The upper surface of the trayless fixing plate (1) is provided with a plurality of clamp mounting holes (2), a pair of cross frames (23) are installed inside the clamp mounting holes (2), and a double-cylinder mounting seat (3) is fixedly installed on the pair of cross frames (23), and two first clamping claws (5) are installed in the double-cylinder mounting seat (3), and a single-cylinder mounting seat (4) is fixedly installed on the left and right inner walls of the clamp mounting hole (2), and a second clamping claw (6) is installed in the single-cylinder mounting seat (4); The upper surface of the trayless fixing plate (1) is also provided with two strip boxes (10) symmetrically arranged on the left and right, and a plurality of through-beam photoelectric sensors (11) are installed inside each of the strip boxes (10); a pair of spring sheets (12) are fixed to the bottom end of the inner wall of the clamp mounting hole (2), and a clamping block (13) is fixed to the outer end of each of the spring sheets (12), and a light blocking sheet (14) is fixed to the top end of each of the clamping blocks (13).

2. A multi-point clamping fixture for a chip laminator according to claim 1, Features: A pair of strip boxes (10) are provided with a plurality of light holes (15) on opposite sides thereof, and the light holes (15) are arranged opposite to the infrared emitting ends of the opposite-beam type photoelectric sensors (11).

3. A multi-point clamping fixture for a chip laminator according to claim 1, Features: The first clamping jaw (5) and the second clamping jaw (6) are each driven by a threaded cylinder (7). The structures of the first clamping jaw (5) and the second clamping jaw (6) both include a positioning pin (501), a torsion spring (502) and a clamping jaw body (503). The positioning pin (501) is rotatably mounted on the double-cylinder mounting seat (3) or the single-cylinder mounting seat (4). The outer wall of the positioning pin (501) is fixed with the clamping jaw body (503), and the torsion spring (502) is sleeved on the outer wall of the positioning pin (501).

4. A multi-point clamping fixture for a chip laminator according to claim 3, Features: The power arm of the clamp body (503) is fixed to the telescopic end of the threaded cylinder (7), and the end of the resistance arm of the clamp body (503) is used to clamp the chip.

5. The multi-point clamping fixture of a chip laminator according to claim 3, Features: A plurality of the threaded cylinders (7) are connected in series by air pipes, and the top of each threaded cylinder (7) is connected to an air source connector (8), and the outer wall of each threaded cylinder (7) is installed with a limit screw (9).

6. The multi-point clamping fixture of a chip laminator according to claim 1, Features: A plurality of rotating pins (16) are also installed on the upper surface of the trayless fixed plate (1), and a rotating frame (17) is fixed on the outer wall of each rotating pin (16), and a fixing seat (18) is also installed on the outer wall of the rotating frame (17).

7. A multi-point clamping fixture for a chip laminator according to claim 6, Features: The outer side wall of the fixing seat (18) is fixed to the double-cylinder mounting seat (3), and a sensor bracket (19) is also fixedly mounted on the outer side wall of the fixing seat (18), and a reflective photoelectric sensor is mounted on the sensor bracket (19).

8. The multi-point clamping fixture of a chip laminator according to claim 1, Features: The upper surface of the trayless fixing plate (1) is also provided with a plurality of air flow main ducts (20), the upper side walls of the air flow main ducts (20) are connected to a plurality of air outlet joints (21), and the outer side walls of the air flow main ducts (20) are all connected to air inlet joints (22).

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