CN215845965U - Chip frame fixed length cutting device - Google Patents

Abstract

The utility model discloses a chip frame fixed-length cutting device which comprises a machine base, a cutting table, a translation device, a feeding arm, a discharging arm and an opposite emission sensor, wherein the cutting table is installed on the machine base, the machine base is provided with the feeding table and the discharging table, the translation device is installed on the machine base, the feeding arm comprises a first lifting mechanism installed at the output end of the translation device and a first positioning claw installed at the output end of the first lifting mechanism, the feeding table is provided with a first groove, the first positioning claw is matched with the first groove to lock a chip frame, the discharging arm comprises a second lifting mechanism installed at the output end of the translation device and a second positioning claw installed at the output end of the second lifting mechanism, the discharging table is provided with a second groove, the second positioning claw is matched with the second groove to lock the chip frame, and the opposite emission sensor is installed on the feeding table and used for detecting the moving distance of the chip frame. The utility model realizes the fixed-length cutting function, has high cutting precision and small length error of the chip frame.

Description

Chip frame fixed length cutting device

Technical Field

The utility model relates to the technical field of semiconductor chip processing equipment, in particular to a fixed-length cutting device for a chip frame.

Background

The chip frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between a circuit leading-out end inside a chip and an external lead by means of a bonding gold wire to form an electrical circuit, and plays a role of a bridge connected with an external lead, wherein, as shown in figure 1, one side of the chip frame is provided with positioning holes which are arranged at equal intervals.

Before processing, the chip frame is in a coil material shape, and fixed-length cutting is carried out after unreeling is needed so as to facilitate subsequent processing. However, in the existing cutting machine, the positioning precision is poor, and the cut chip frame has a large length error.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a chip frame fixed-length cutting device, which realizes the function of fixed-length cutting, has high cutting precision and small length error of a chip frame.

In order to solve the technical problems, the utility model provides a chip frame fixed-length cutting device which comprises a machine base, a cutting table, a translation device, a feeding arm, a discharging arm and a correlation sensor, wherein the cutting table is arranged on the machine base and used for cutting off a chip frame, the feeding table and the discharging table are arranged on the machine base, the cutting table is positioned between the feeding table and the discharging table, the translation device is arranged on the machine base, the feeding arm comprises a first lifting mechanism arranged at the output end of the translation device and a first positioning claw arranged at the output end of the first lifting mechanism, the first lifting mechanism is arranged close to the feeding table, the feeding table is provided with a first groove corresponding to the first positioning claw in position, the first positioning claw and the first groove are matched to lock the chip frame, the discharging arm comprises a second lifting mechanism arranged at the output end of the translation device and a second positioning claw arranged at the output end of the second lifting mechanism, and the second lifting mechanism is arranged close to the discharging table, the discharging table is provided with a second groove corresponding to the position of the second positioning claw, the second positioning claw and the second groove are matched to lock the chip frame, and the correlation sensor is installed on the feeding table and used for detecting the moving distance of the chip frame.

The translation device comprises a mounting seat, a movable table, a driving motor and a rack, the mounting seat is arranged on the base, the movable table is connected with the mounting seat in a horizontal sliding mode, the rack is mounted at the bottom of the movable table, the driving motor is arranged on the mounting seat, the output end of the driving motor is fixed with a gear, the gear is meshed with the rack, and the first lifting mechanism and the second lifting mechanism are mounted at two ends of the movable table respectively.

The cutting table comprises a vertical frame, a workbench, a third lifting mechanism and a fourth lifting mechanism, the vertical frame is arranged between the feeding table and the discharging table, the workbench is installed on the vertical frame, the third lifting mechanism is installed on the vertical frame, the output end of the third lifting mechanism is connected with a pressing block used for pressing the chip frame, the pressing block is of a door-shaped structure, the middle of the workbench is provided with a through groove, a lower cutter is arranged in the through groove, the fourth lifting mechanism is installed on the vertical frame, and the output end of the fourth lifting mechanism is connected with an upper cutter which is matched with the lower cutter to cut off the chip frame.

Wherein, one side of first locating pawl towards recess one is provided with first contact pin, second locating pawl including install at the connecting rod of second elevating system output and with connecting rod sliding connection's regulating block, the regulating block is provided with the second contact pin towards one side of recess two.

The feeding table comprises a first support arranged on the base, a first fixed table fixed on the first support and a first moving table connected with the first support in a sliding mode, the first fixed table and the first moving table are matched to support the chip frame, first limiting strips are arranged on the first fixed table and the first moving table, and a first groove is formed in the first moving table.

The discharging table comprises a second support on the base, a second fixed table fixed on the second support and a second mobile table connected with the second support in a sliding mode, the second fixed table and the second mobile table are matched to support the chip frame, a second limiting strip is arranged on the second fixed table and the second mobile table, and the second groove is located on the second mobile table.

The feeding table is provided with a first limiting block for avoiding the feeding arm from moving to be out of position, and the discharging table is provided with a second limiting block for avoiding the discharging arm from moving to be out of position.

The beneficial effects of the implementation of the utility model are as follows: the first positioning claw on the feeding arm and the second positioning claw on the discharging arm can respectively position the chip frame and synchronously move under the driving of the translation device, so that the function of driving the frame chip which is not cut off or the frame chip which is cut off to horizontally move is realized; be provided with correlation sensor, the displacement of detectable chip frame just under the cooperation of cutting bed, realizes the function of fixed length cutting, and cutting accuracy is high, and the length error of chip frame is little.

Drawings

Fig. 1 is a front view of a chip frame fixed-length cutting apparatus according to the present invention;

fig. 2 is a side view of a cutting table in the chip frame fixed-length cutting device according to the present invention;

fig. 3 is a side view of a feeding table in a chip frame fixed-length cutting device according to the present invention;

fig. 4 is a side view of a discharging table in the chip frame fixed-length cutting device according to the present invention;

fig. 5 is a side view of a discharging arm in the chip frame fixed-length cutting device according to the present invention;

fig. 6 is a top view of a second positioning claw in the device for cutting the chip frame to a fixed length according to the present invention.

In the figure: 1. a machine base; 2. cutting table; 21. erecting a frame; 22. a work table; 221. a through groove; 23. a third lifting mechanism; 24. a fourth lifting mechanism; 25. briquetting; 26. an upper cutter; 27. a lower cutter; 3. a translation device; 31. a mounting seat; 32. a movable table; 33. a drive motor; 34. a rack; 35. a gear; 4. a feed arm; 41. a first lifting mechanism; 42. a first positioning claw; 421. a first pin; 5. a discharging arm; 51. a second lifting mechanism; 52. a second positioning pawl; 521. a connecting rod; 522. an adjusting block; 523. a second pin; 6. a correlation sensor; 7. a feeding table; 71. a first groove; 72. a first bracket; 73. a first fixed table; 74. a first mobile station; 75. a first limiting strip; 76. a first limiting block; 8. a discharging table; 81. a second groove; 82. a second bracket; 83. a second fixed table; 84. a second mobile station; 85. a second limiting strip; 86. and a second limiting block.

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.

Referring to fig. 1-6, the device for cutting the chip frame into fixed lengths comprises a base 1, a cutting table 2, a translation device 3, a feeding arm 4, a discharging arm 5 and a correlation sensor 6, wherein the base 1 is arranged at a discharging end of an unwinding device of the chip frame, the cutting table 2 is mounted on the base 1 and used for cutting off the chip frame, the feeding table 7 and the discharging table 8 are arranged on the base 1, the cutting table 2 is located between the feeding table 7 and the discharging table 8, and the feeding table 7 and the discharging table 8 are used for supporting the chip frame so as to ensure that the chip frame is in a flat state when being cut off. The translation device 3 is installed on the machine base 1, the feeding arm 4 comprises a first lifting mechanism 41 installed at the output end of the translation device 3 and a first positioning claw 42 installed at the output end of the first lifting mechanism 41, the first lifting mechanism 41 is arranged close to the feeding table 7, the feeding table 7 is provided with a first groove 71 corresponding to the position of the first positioning claw 42, the first positioning claw 42 and the first groove 71 are matched to lock the chip frame, the discharging arm 5 comprises a second lifting mechanism 51 installed at the output end of the translation device 3 and a second positioning claw 52 installed at the output end of the second lifting mechanism 51, the second lifting mechanism 51 is arranged close to the discharging table 8, the discharging table 8 is provided with a second groove 81 corresponding to the position of the second positioning claw 52, the second positioning claw 52 and the second groove 81 are matched to lock the chip frame, and the first lifting mechanism 41 and the second lifting mechanism 51 are driven by the translation device 3 to perform synchronous translation motion, the first positioning claw 42 can drive the chip frame to horizontally move under the driving of the translation device 3; and the second positioning claw 52 can drive the chip frame to move horizontally under the driving of the translation device 3. The correlation sensor 6 is installed on the feeding table 7, specifically arranged near the cutting table 2, and is used for detecting the moving distance of the chip frame. The correlation sensor 6 comprises a transmitting module and a receiving module, the transmitting module is installed on the feeding table 7 and located above the first groove 71, and the receiving module is installed on the feeding table 7 and arranged corresponding to the transmitting module. When the detection is started, the signal transmitted by the transmitting module passes through the positioning hole on the chip frame, the signal is received by the receiving module, then the chip frame moves forward under the driving of the translation device 3, when a plurality of positioning holes on the chip frame pass through the position between the transmitting module and the receiving module, the receiving module can receive the signal for a plurality of times, and the moving distance of the chip frame can be obtained, so that the function of fixed-length cutting is realized.

The working principle of the utility model is as follows: the first lifting mechanism 41 drives the first positioning claw 42 to be inserted into a positioning hole on the chip frame, and the translation device 3 drives the first lifting mechanism 41 and the second lifting mechanism 51 to synchronously move towards the right side, so that the uncut chip frame is driven to move towards the right side; the correlation sensor 6 detects the moving distance of the chip frame, and when a preset value is reached, the translation device 3 stops, and the cutting table 2 cuts off the chip frame. After cutting, the first lifting mechanism 41 drives the first positioning claw 42 to reset, the translation device 3 drives the first lifting mechanism 41 and the second lifting mechanism 51 to move towards the left side, then the second lifting mechanism 51 drives the second positioning claw 52 to insert into the positioning hole on the cut chip frame, and the translation device 3 drives the first lifting mechanism 41 and the second lifting mechanism 51 to move towards the right side again, so that the cut chip frame is pushed out of the discharging table 8; after the pushing is completed, the second lifting mechanism 51 drives the second positioning pawl 52 to reset, and the translation device 3 drives the first lifting mechanism 41 and the second lifting mechanism 51 to move to the left side to the original point, so as to wait for the next pushing action. The function of cutting the chip frame at fixed length is realized, and the length error of the chip frame is reduced. It should be noted that when the single horizontal translation distance of the translation device 3 is shorter than the cutting length of the chip frame, the translation may be repeated for multiple times, so that the feeding arm 4 pushes the chip frame multiple times until the distance that the correlation sensor 6 detects the movement of the chip frame reaches the preset value.

It should be noted that, the left side and the right side are both based on fig. 1 as a reference system, the side where the feeding table 7 is located is the left side, and the side where the discharging table 8 is located is the right side.

For realizing that translation device 3 drives feeding arm 4 and discharge arm 5 and makes synchronous horizontal migration, refer to fig. 3, translation device 3 includes mount pad 31, movable table 32, driving motor 33 and rack 34, mount pad 31 sets up on the frame 1, movable table 32 and mount pad 31 horizontal sliding connection to rack 34 installs in movable table 32 bottom, and driving motor 33 sets up on mount pad 31, and the output is fixed with gear 35, and gear 35 and rack 34 mesh, first elevating system 41 and second elevating system 51 are installed respectively at the both ends of movable table 32. The driving motor 33 drives the gear 35 to do forward and reverse rotation movement, the gear 35 is meshed with the rack 34 to drive the movable table 32 to do horizontal translation movement, the first lifting mechanism 41 and the second lifting mechanism 51 to do synchronous movement, and because the distance between the first lifting mechanism 41 and the second lifting mechanism 51 is fixed, when the moving distance of the movable table 32 is integral multiple of the distance between two adjacent positioning holes in the chip frame, the first positioning claw 42 and the second positioning claw 52 can be correspondingly inserted into the positioning holes without fail.

Besides, the gear 35 and the rack 34 are engaged to drive the movable table 32 to move horizontally, a synchronous pulley, a pinch roller and a synchronous belt can be used for matching, and the specific structure is as follows, and the structure is not shown in the attached drawings: the output end of the driving motor 33 is connected with a synchronous belt wheel, the synchronous belt is an open synchronous belt, the synchronous belt is wound around the synchronous belt wheel, two ends of the synchronous belt are respectively fixed at two ends of the movable table 32, two pressing wheels are rotatably connected with the mounting seat 31, and the wheel surfaces of the pressing wheels are pressed against the synchronous belt to guarantee the tension force of the synchronous belt. The driving motor 33 drives the synchronous belt pulley to do positive and negative rotation movement, and the synchronous belt pulley are matched to drive the movable table 32 to do horizontal translation movement.

For realizing that cutting table 2 cuts off chip frame accurately, refer to fig. 2, cutting table 2 includes grudging post 21, workstation 22, third elevating system 23 and fourth elevating system 24, grudging post 21 sets up between feed table 7 and ejection of compact platform 8, workstation 22 is installed on grudging post 21, specifically, workstation 22's horizontal plane and feed table 7's holding surface, ejection of compact platform 8's holding surface all are on same horizontal plane. The third lifting mechanism 23 is installed on the vertical frame 21, the output end of the third lifting mechanism is connected with a pressing block 25 used for pressing the chip frame, the pressing block 25 is of a door-shaped structure, the pressing block 25 of the door-shaped structure is used for respectively pressing the positions of two sides of the chip frame, and therefore the chip frame is prevented from being tilted or shifted when being cut off. The middle part of the working table 22 is provided with a through groove 221, a lower cutter 27 is arranged in the through groove 221, the fourth lifting mechanism 24 is installed on the vertical frame 21, the output end of the fourth lifting mechanism is connected with an upper cutter 26 which cuts off the chip frame from the lower cutter 27, and when the fourth lifting mechanism 24 drives the upper cutter 26 to do descending motion, the upper cutter 26 is matched with the lower cutter 27 to cut off the chip frame.

It should be noted that the third lifting mechanism 23 and the fourth lifting mechanism 24 are preferably air cylinders driving the lifting movement mechanisms to respectively lift the pressing block 25 and the upper cutter 26.

In order to ensure that the distance between the first positioning claw 42 and the second positioning claw 52 is an integral multiple of the distance between two adjacent positioning holes of the chip frame, a first pin 421 is arranged on one side of the first positioning claw 42 facing the first groove 71, and the first pin 421 can be inserted into the positioning hole of the chip frame. Referring to fig. 3, 5 and 6, the second positioning pawl 52 includes a connecting rod 521 mounted at the output end of the second lifting mechanism 51 and an adjusting block 522 slidably connected to the connecting rod 521, a second pin 523 is disposed on one side of the adjusting block 522 facing the second recess 81, and the second pin 523 can be inserted into a positioning hole of the chip frame. The distance between the first pin 421 and the second pin 523 can be adjusted to meet the processing requirements by adjusting the horizontal moving distance of the adjusting block 522 and adopting a screw locking position, and the adjusting device is suitable for positioning chip frames of different models.

In order to realize that the feeding table 7 can support chip frames of different models, referring to fig. 3, the feeding table 7 comprises a first support 72 mounted on the base 1, a first fixed table 73 fixed on the first support 72, and a first movable table 74 slidably connected with the first support 72, the first movable table 74 can be locked in the first support 72 through screws, the first fixed table 73 and the first movable table 74 cooperate to support the chip frames, a first limit strip 75 is arranged on each of the first fixed table 73 and the first movable table 74, a first groove 71 is arranged on the first movable table 74, and the two first limit strips 75 are used for limiting the positions of two sides of the uncut chip frame, so that the guiding function is realized. The first pin 421 penetrates through the chip frame and extends into the first groove 71, so that the first pin 421 drives the chip frame to move along the first 75 direction of the limiting strip.

In order to realize that the discharging table 8 can support chip frames of different models, referring to fig. 4, the discharging table 8 includes a second bracket 82 installed on the base 1, a second fixed table 83 fixed on the second bracket 82, and a second moving table 84 slidably connected with the second bracket 82, the second moving table 84 can be locked in position on the second bracket 82 through screws, the second fixed table 83 and the second moving table 84 cooperate to support the chip frames, the second fixed table 83 and the second moving table 84 are both provided with a second limit strip 85, the second groove 81 is located on the second moving table 84, and the two second limit strips 85 are used for limiting positions on two sides of the cut chip frames, so as to play a role in guiding. The second pin 523 penetrates through the chip frame and extends into the second groove 81, so that the second pin 523 can drive the chip frame to move along the second limiting strip 85.

It should be noted that, in order to ensure that the first pin 421 is matched with the first groove 71, the second pin 523 is matched with the second groove 81, the first positioning claw 42 and the first lifting mechanism 41 are in horizontal sliding connection, and can be locked by a screw, so as to adjust the first pin 421 to be located right above the positioning hole of the chip frame. The connecting rod 521 is horizontally slidably connected to the second lifting mechanism 51, and can be locked by a screw to adjust the position of the second pin 523 over the positioning hole of the chip frame.

The first lifting mechanism 41 and the second lifting mechanism 51 are preferably cylinder-driven lifting mechanisms, and realize the respective lifting movements of the first positioning pawl 42 and the second positioning pawl 52.

In order to avoid the translational device 3 from moving out of position, the feeding arm 4 and the discharging arm 5 are prevented from colliding with the cutting table 2. Referring to fig. 3 and 4, a first limiting block 76 for preventing the feeding arm 4 from moving out of position is arranged on the feeding table 7, the first limiting block 76 is specifically installed on a first limiting strip 75 of the first fixing table 73, the first limiting block 76 is arranged close to the cutting table 2, and when the first limiting block 76 is in contact with the first positioning claw 42, the first positioning claw 42 is prevented from moving towards the right side continuously. The discharging table 8 is provided with a second limiting block 86 which prevents the discharging arm 5 from moving out of position, the second limiting block 86 is specifically installed on a second limiting strip 85 of the second fixed table 83, the second limiting block 86 is arranged close to the cutting table 2, and when the second limiting block 86 contacts the connecting rod 521, the second positioning claw 52 is prevented from continuously moving towards the left side.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. The fixed-length cutting device for the chip frame is characterized by comprising a machine base (1), a cutting table (2), a translation device (3), a feeding arm (4), a discharging arm (5) and a correlation sensor (6), wherein the cutting table (2) is installed on the machine base (1) and used for cutting off the chip frame, the machine base (1) is provided with a feeding table (7) and a discharging table (8), the cutting table (2) is positioned between the feeding table (7) and the discharging table (8), the translation device (3) is installed on the machine base (1), the feeding arm (4) comprises a first lifting mechanism (41) installed at the output end of the translation device (3) and a first positioning claw (42) installed at the output end of the first lifting mechanism (41), the first lifting mechanism (41) is arranged close to the feeding table (7), the feeding table (7) is provided with a first groove (71) corresponding to the position of the first positioning claw (42), first locating pawl (42) and recess (71) cooperation lockable chip frame, ejection of compact arm (5) are including installing second elevating system (51) at translation device (3) output and installing second locating pawl (52) at second elevating system (51) output, and second elevating system (51) are close to ejection of compact platform (8) and set up, ejection of compact platform (8) are provided with recess two (81) that correspond with second locating pawl (52) position, second locating pawl (52) and recess two (81) cooperation lockable chip frame, install on feeding platform (7) correlation sensor (6) for detect chip frame's displacement.

2. The chip frame fixed-length cutting device according to claim 1, wherein the translation device (3) comprises a mounting seat (31), a movable table (32), a driving motor (33) and a rack (34), the mounting seat (31) is arranged on the base (1), the movable table (32) is horizontally and slidably connected with the mounting seat (31), the rack (34) is arranged at the bottom of the movable table (32), the driving motor (33) is arranged on the mounting seat (31), a gear (35) is fixed at an output end of the driving motor, the gear (35) is meshed with the rack (34), and the first lifting mechanism (41) and the second lifting mechanism (51) are respectively arranged at two ends of the movable table (32).

3. The chip frame fixed-length cutting device according to claim 1, wherein the cutting table (2) comprises a vertical frame (21), a workbench (22), a third lifting mechanism (23) and a fourth lifting mechanism (24), the vertical frame (21) is arranged between the feeding table (7) and the discharging table (8), the workbench (22) is arranged on the vertical frame (21), the third lifting mechanism (23) is arranged on the vertical frame (21), the output end of the third lifting mechanism is connected with a pressing block (25) for pressing the chip frame, the pressing block (25) is of a door-shaped structure, a through groove (221) is formed in the middle of the workbench (22), a lower cutter (27) is arranged in the through groove (221), the fourth lifting mechanism (24) is arranged on the vertical frame (21), and the output end of the fourth lifting mechanism is connected with an upper cutter (26) which is matched with the lower cutter (27) to cut off the chip frame.

4. The chip frame fixed-length cutting device according to claim 1, wherein a first inserting pin (421) is arranged on one side of the first positioning claw (42) facing the first groove (71), the second positioning claw (52) comprises a connecting rod (521) arranged at the output end of the second lifting mechanism (51) and an adjusting block (522) connected with the connecting rod (521) in a sliding manner, and a second inserting pin (523) is arranged on one side of the adjusting block (522) facing the second groove (81).

5. The chip frame fixed-length cutting device according to any one of claims 1 to 4, wherein the feeding table (7) comprises a first support (72) installed on the base (1), a first fixed table (73) fixed on the first support (72), and a first movable table (74) in sliding connection with the first support (72), the first fixed table (73) and the first movable table (74) are matched to support the chip frame, a first limit strip (75) is arranged on each of the first fixed table (73) and the first movable table (74), and the first groove (71) is located on the first movable table (74).

6. The chip frame fixed-length cutting device according to any one of claims 1 to 4, wherein the discharging table (8) comprises a second bracket (82) installed on the base (1), a second fixed table (83) fixed on the second bracket (82), and a second moving table (84) slidably connected with the second bracket (82), the second fixed table (83) and the second moving table (84) are matched to support the chip frame, the second fixed table (83) and the second moving table (84) are both provided with a second limit strip (85), and the second groove (81) is located on the second moving table (84).

7. The chip frame fixed-length cutting device according to any one of claims 1 to 4, wherein a first limiting block (76) for preventing the feeding arm (4) from moving out of position is arranged on the feeding table (7), and a second limiting block (86) for preventing the discharging arm (5) from moving out of position is arranged on the discharging table (8).

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