Chip packaging pin detection device

Abstract

The utility model discloses a pin detection device for chip packaging. Comprising a base, supporting legs, a rotating mechanism, a belt pulley, a belt, a transmission mechanism, a motor, a protective cover, an annular guide rail, a limiting protrusion, a conveying mechanism, a sliding base, a containing groove, a containing base, a fixing rod, a moving mechanism, a connecting shaft, rolling wheels, a supporting plate, a fixing base, a visual detection mechanism, a fixing rod, a mounting base, a visual camera, a light supplementing lamp, a lifting base, a lifting mechanism, a first air cylinder, a sliding column and a positioning mechanism. The detection mechanism comprises movable grooves formed in the front and the back of one side of the lifting seat, and the screw rod is inserted in the middle of each movable groove. Compared with the prior art, the chip detection device has the advantages that the distance between the detection pens is adjustable, chips of different types can be detected conveniently, the detection position is more accurate, and operation of operators is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pin detection devices, in particular to a pin detection device for chip packaging. Background Art

[0002] Chip packaging is the shell for installing semiconductor integrated circuit chips, which plays the roles of placing, fixing, sealing, protecting the chips and enhancing the electrothermal performance. Moreover, it is also a bridge connecting the internal world of the chips and the external circuit. The contacts on the chips are connected to the pins of the packaging shell by wires, and these pins are further connected to other devices through the wires on the printed circuit board. Therefore, the pins for chip packaging need to be tested for performance before leaving the factory.

[0003] A packaging chip pin detection device described in the publication number CN220231813U includes a conveying frame and a support frame. The top end of the conveying frame is provided with a support frame, the inside of the support frame is provided with a panel display detector, the bottom end of the support frame is provided with a vision camera, a driving roller is installed inside the conveying frame below the vision camera, an auxiliary roller is installed on one side of the conveying frame away from the driving roller, and a conveyor belt is arranged on the surface of the auxiliary roller. The utility model not only realizes the continuous conveying and elastic contact detection of the packaging chip pin detection device for the packaging chip pin detection device, speeds up the detection speed between multiple groups of the packaging chip pin detection device, but also improves the safety during contact of the packaging chip pin detection device and the detection efficiency of the pin detection device. However, there are still defects in the prior art:

[0004] 1. In the prior art, support sleeves are symmetrically installed at the bottom end of the transmission frame, and detection needles are arranged inside the support sleeves. However, the distances between the pins on different chips are different, which is not convenient for detecting chips of different models.

[0005] 2. In the prior art, the air cylinder drives the push rod to move, the push rod drives the clamping plate to move, and two groups of clamping plates are used to clamp and align the packaging chip. However, when the chip moves along with the conveyor belt, the position is not accurate enough. Only by aligning left and right, the pins are relatively small, which may cause the detection needle to fail to accurately move directly above the pin when moving downward, thus affecting the normal detection. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to overcome the above defects and provide a pin detection device for chip packaging.

[0007] To solve the above technical problem, the technical solution provided by the utility model is: a pin detection device for chip packaging, including:

[0008] A base, and support legs are fixedly connected to the front and rear of both sides of the bottom of the base;

[0009] A rotating mechanism, the rotating mechanism is arranged in the middle of the upper end of the base, and the rotating mechanism includes pulleys rotatably connected to both sides of the upper end of the base, and a belt is sleeved between the two pulleys at both ends;

[0010] A transmission mechanism, the transmission mechanism is arranged on the pulley;

[0011] An annular guide rail, the annular guide rail is fixedly connected to the middle of the upper end of the base, a limiting protrusion is arranged in the middle of the annular guide rail, and the annular guide rail is located outside the belt;

[0012] A conveying mechanism, the conveying mechanism is arranged on the annular guide rail, and the conveying mechanism includes a plurality of sliding seats evenly slidably connected to the annular guide rail. A placing groove is opened in the middle of the upper end of the sliding seat, and a placing seat is arranged in the middle of the placing groove. A fixing column is fixedly connected to the middle of one side of the sliding seat close to the belt, and the side of the fixing column away from the sliding seat is fixedly connected to the belt;

[0013] A moving mechanism, the moving mechanism is arranged between the sliding seat and the annular guide rail;

[0014] A support plate, the support plate is fixedly connected to the middle of the rear end of the upper side of the base;

[0015] A fixing seat, the fixing seat is fixedly connected to the upper end of the support plate;

[0016] A vision detection mechanism, the vision detection mechanism is arranged on one side of the lower end of the fixing seat;

[0017] A lifting seat, the lifting seat is arranged on the side of the lower end of the fixing seat away from the vision detection mechanism;

[0018] A lifting mechanism, the lifting mechanism is arranged on the lifting seat;

[0019] A positioning mechanism, the positioning mechanism is arranged on the lifting seat, and the positioning mechanism includes a cylinder two fixedly connected to the middle of the lower end of the lifting seat, and a pressing pad is fixedly connected to the lower end of the cylinder two;

[0020] A detection mechanism, the detection mechanism is arranged on the lifting seat, and the detection mechanism includes moving grooves opened in the front and rear of one side of the lifting seat, a screw rod is inserted in the middle of the moving groove, a detection pen is fixedly connected to the lower end of the screw rod, a nut sleeve is threadedly connected to the screw rod, the nut sleeve is located at the upper end of the lifting seat, and a connecting head is fixedly connected to the upper end of the screw rod.

[0021] As an improvement, the transmission mechanism includes:

[0022] A motor, the motor is fixedly connected to the middle of one side of the lower end of the base, and the lower end of one pulley is fixedly connected to the output shaft of the upper end of the motor;

[0023] A protective cover, the protective cover is fixedly connected to the middle of one side of the lower end of the base, and the protective cover is sleeved outside the motor.

[0024] As an improvement, the moving mechanism includes:

[0025] Connecting shafts, four of the connecting shafts are fixedly connected to the four corners of the lower end of the sliding seat;

[0026] Rollers, the rollers are rotatably connected to the connecting shafts, and grooves for cooperating with the limiting protrusions are provided on the side surfaces of the rollers.

[0027] As an improvement, the vision detection mechanism includes:

[0028] Fixed rods, the fixed rods are fixedly connected to one side of the lower end of the fixed seat;

[0029] Mounting seats, the mounting seats are fixedly connected to the lower ends of the fixed rods;

[0030] Vision cameras, the vision cameras are fixedly connected to the middle of the lower end of the mounting seats;

[0031] Fill light lamps, the fill light lamps are fixedly connected to the lower ends of the mounting seats.

[0032] As an improvement, the lifting mechanism includes:

[0033] Cylinder 1, the cylinder 1 is fixedly connected to one side of the upper end of the fixed seat, and the lower end of the cylinder 1 is fixedly connected to the middle of the upper end of the lifting seat;

[0034] Slide columns, two of the slide columns are fixedly connected to both sides of the upper end of the lifting seat, and the upper ends of the slide columns penetrate through the fixed seat.

[0035] The advantages of the present utility model compared with the prior art are as follows: 1. In the present utility model, movable grooves are arranged at the front and rear sides of one side of the lifting seat, a screw rod is inserted into the middle of the movable grooves, the lower end of the screw rod is fixedly connected with a detection pen, a nut sleeve is threadedly connected to the screw rod, the nut sleeve is located at the upper end of the lifting seat, and loosening the nut sleeve can move the distance between the detection pens, which is convenient for detecting different types of chips.

[0036] 2. The placing seat in the present utility model is customized according to the chip size, and the packaged chip can be directly placed inside the placing seat. The packaged chip will not move randomly inside the placing seat with a matching size. The cylinder 2 and the pressing pad can further fix the chip, and the position of the chip is stable. Moreover, the motor drives one pulley to rotate, thereby driving the belt to rotate. When the belt rotates, it drives the sliding seat to move along the annular guide rail. The movement of the sliding seat drives the placing seat and the chips inside it to move to directly below the detection position for one-by-one detection, and the detection position is more accurate, which is convenient for the operator to operate. Description of the Drawings

[0037] Figure 1It is a schematic structural diagram of a pin detection device for chip packaging of the present utility model.

[0038] Figure 2 is Figure 1 The enlarged view of area A in

[0039] Figure 3 It is a right view of a pin detection device for chip packaging of the present utility model.

[0040] Figure 4 is Figure 3 The sectional view of area A - A in

[0041] Figure 5 is Figure 4 The enlarged view of area B in

[0042] Figure 6 It is a schematic diagram of the partial structure of a pin detection device for chip packaging of the present utility model Figure 1 .

[0043] Figure 7 It is a schematic diagram of the partial structure of a pin detection device for chip packaging of the present utility model Figure 2 .

[0044] As shown in the figure: 1. Base; 2. Legs; 3. Rotating mechanism; 31. Pulley; 32. Belt; 4. Transmission mechanism; 41. Motor; 42. Protective cover; 5. Ring rail; 6. Limit projection; 7. Conveyor mechanism; 71. Slide; 72. Placement groove; 73. Placement seat; 74. Fixed column; 8. Moving mechanism; 81. Connecting shaft; 82. Roller; 9. Support plate; 10. Fixed seat; 11. Visual detection mechanism; 111. Fixed rod; 112. Mounting seat; 113. Visual camera; 114. Fill light; 12. Lifting seat; 13. Lifting mechanism; 131. Cylinder 1; 132. Slide column; 14. Positioning mechanism; 141. Cylinder 2; 142. Pressure pad; 15. Detection mechanism; 151. Activity groove; 152. Screw; 153. Detection pen; 154. Screw sleeve; 155. Connector. Specific implementation mode

[0045] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0046] A pin detection device for chip packaging, including a base 1, as Figure 1As shown in the figure, legs 2 are fixedly connected to the front and back of both sides of the bottom of the base 1. A rotating mechanism 3 is provided in the middle of the upper end of the base 1. The rotating mechanism 3 includes pulleys 31 rotatably connected to both sides of the upper end of the base 1. A belt 32 is sleeved between the two pulleys 31 at both ends. A transmission mechanism 4 is provided on the pulley 31. The transmission mechanism 4 includes a motor 41 and a protective cover 42. The motor 41 is fixedly connected to the middle of one side of the lower end of the base 1. The lower end of one pulley 31 is fixedly connected to the output shaft of the upper end of the motor 41. The protective cover 42 is fixedly connected to the middle of one side of the lower end of the base 1. The protective cover 42 is sleeved outside the motor 41. The motor 41 drives the pulley 31 at one end to rotate, thereby driving the belt 32 to rotate.

[0047] An annular guide rail 5 is fixedly connected to the middle of the upper end of the base 1. A limiting projection 6 is provided in the middle of the annular guide rail. The annular guide rail 5 is located outside the belt 32. The distance between the annular guide rail 5 and the belt 32 is equidistant.

[0048] A conveying mechanism 7 is provided on the annular guide rail 5. The conveying mechanism 7 includes a plurality of sliding seats 71 slidably connected to the annular guide rail 5 evenly. A placement groove 72 is opened in the middle of the upper end of the sliding seat 71. A placement seat 73 is provided in the middle of the placement groove 72. The placement seat 73 is customized according to the chip size. The packaged chip can be directly placed inside the placement seat 73. The packaged chip will not move randomly inside the placement seat 73 with a matching size.

[0049] A fixing column 74 is fixedly connected to the middle of the side of the sliding seat 71 close to the belt 32. The side of the fixing column 74 away from the sliding seat 71 is fixedly connected to the belt 32. A moving mechanism 8 is provided between the sliding seat 71 and the annular guide rail 5. The moving mechanism 8 includes a connecting shaft 81 and rollers 82. Four connecting shafts 81 are fixedly connected to the four corners of the lower end of the sliding seat 71. The rollers 82 are rotatably connected to the connecting shafts 81. Two of the rollers 82 distributed inside the annular guide rail 5 are concentric wheels, and two of the rollers 82 distributed on the annular guide rail 5 are eccentric wheels. The distance between the concentric wheels is less than the distance between the eccentric wheels, which can allow the placement seat 73 to pass through the curved part of the annular guide rail 5 smoothly. A groove for cooperating with the limiting projection 6 is opened on the side of the roller 82. When the belt 32 rotates, it drives the fixing column 74 to move. The movement of the fixing column 74 drives the sliding seat 71 to move along the annular guide rail 5. The rollers 82 at the lower end of the sliding seat 71 assist the sliding seat 71 to move under the limitation of the limiting projection 6. The movement of the sliding seat 71 drives the placement seat 73 and the chips inside it to move for one-by-one detection, which is convenient for the operator to operate.

[0050] The support plate 9 is fixedly connected to the upper side of the base 1. In the middle of the rear end of the upper side of the support plate 9, there is a fixedly connected support plate 9. The upper end of the support plate 9 is fixedly connected with a fixed seat 10. On one side of the lower end of the fixed seat 10, there is a vision detection mechanism 11. The vision detection mechanism 11 includes a fixed rod 111, a mounting seat 112, a vision camera 113, and a fill light 114. The fixed rod 111 is fixedly connected to one side of the lower end of the fixed seat 10. The mounting seat 112 is fixedly connected to the lower end of the fixed rod 111. The vision camera 113 is fixedly connected to the middle of the lower end of the mounting seat 112. The fill light 114 is fixedly connected to the lower end of the mounting seat 112. When the placement seat 73 moves to directly below the vision camera 113, the vision camera 113 scans and detects the chip inside the placement seat 73, and displays the image information on the rear monitor, facilitating the preliminary detection of appearance information such as chip pins and engraved numbers by the detection personnel.

[0051] On the side of the lower end of the fixed seat 10 away from the vision detection mechanism 11, there is a lifting seat 12. On the lifting seat 12, there is a lifting mechanism 13. The lifting mechanism 13 includes a cylinder 131 and a sliding column 132. The cylinder 131 is fixedly connected to one side of the upper end of the fixed seat 10. The lower end of the cylinder 131 is fixedly connected to the middle of the upper end of the lifting seat 12. Two sliding columns 132 are fixedly connected to both sides of the upper end of the lifting seat 12. The upper ends of the sliding columns 132 penetrate through the fixed seat 10, and the cylinder 131 drives the lifting seat 12 to move up and down.

[0052] On the lifting seat 12, there is a positioning mechanism 14. The positioning mechanism includes a cylinder 141 fixedly connected to the middle of the lower end of the lifting seat 12. The lower end of the cylinder 141 is fixedly connected with a pressure pad 142. When the placement seat 73 moves to directly below the lifting seat 12, the cylinder 141 drives the pressure pad 142 to move downward to fix the chip inside the placement seat 73.

[0053] A detection mechanism 15 is provided on the lifting seat 12. The detection mechanism 15 includes a movable slot 151 opened in the front and rear of one side of the lifting seat 12. A screw rod 152 is inserted in the middle of the movable slot 151. The lower end of the screw rod 152 is fixedly connected with a detection pen 153. A nut 154 is threadedly connected to the screw rod 152. The nut 154 is located at the upper end of the lifting seat 12. The upper end of the screw rod 152 is fixedly connected with a connecting head 155. The connecting head 155 is used to connect other detection mechanisms such as an external multimeter. The upper end of the detection pen 153 is wider than the width of the movable slot 151. By loosening the nut 154, the distance between the detection pens 153 can be adjusted, facilitating the detection of different types of chips.

[0054] When the present utility model is specifically implemented, such as Figure 1-7As shown, when in use, loosen the screw sleeve 154 to move the distance between the detection pen 153, which is convenient for detecting different types of chips. The second cylinder 141 drives the pressing pad 142 to move downward to an appropriate distance so that when the pressing pad 142 fixes the chip, the detection pen 153 can detect the chip at a suitable height.

[0055] Then, place the packaged chip to be detected into the placement seat 73. The packaged chip will not move randomly inside the placement seat 73 with a matching size. The motor 41 drives one end of the pulley 31 to rotate, thereby driving the belt 32 to rotate. When the belt 32 rotates, it drives the fixed column 74 to move. The movement of the fixed column 74 drives the sliding seat 71 to move along the annular guide rail 5. The roller 82 at the lower end of the sliding seat 71 assists the movement of the sliding seat 71 under the limitation of the limiting protrusion 6. The movement of the sliding seat 71 drives the placement seat 73 and the chip inside it to move.

[0056] When the placement seat 73 moves to directly below the vision camera 113, the vision camera 113 scans and detects the chip inside the placement seat 73, and displays the image information on the rear display, which is convenient for the detection personnel to conduct a preliminary inspection on the appearance information such as the chip pins and the engraved number.

[0057] When the placement seat 73 moves to directly below the lifting seat 12, the first cylinder 131 drives the lifting seat 12 to move downward, thereby driving the pressing pad 142 to move downward to fix the chip inside the placement seat 73. The detection pen 153 conducts an electrical inspection on the chip pins. When the detected packaged chip moves to the leftmost end following the placement seat 73, external suction cups and other tools pick up and classify the packaged chip in the placement seat 73, and then continue to place the chip to be detected on the placement seat 73 for continuous detection.

[0058] All the electrical components mentioned in this article are electrically connected to the external main controller and the 220V mains power supply. And the main controller can be a conventional known device such as a computer for control. The detailed descriptions of known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the device, the operating means adopted are consistent with the parameters of market instruments.

[0059] The above describes the present utility model and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A chip packaging pin detection device, characterized in that: include: A base (1), wherein legs (2) are fixedly connected to the front and rear sides of the bottom of the base (1); A rotating mechanism (3), the rotating mechanism (3) being arranged in the middle of the upper end of the base (1), the rotating mechanism (3) comprising pulleys (31) rotatably connected to both sides of the upper end of the base (1), and a belt (32) being sleeved between the pulleys (31) at both ends; A transmission mechanism (4), wherein the transmission mechanism (4) is arranged on a pulley (31); An annular guide rail (5), the annular guide rail (5) is fixedly connected to the middle of the upper end of the base (1), a limiting protrusion (6) is provided in the middle of the annular guide rail, and the annular guide rail (5) is located outside the belt (32); A conveying mechanism (7), wherein the conveying mechanism (7) is arranged on the annular guide rail (5), and the conveying mechanism (7) comprises a plurality of slide seats (71) uniformly slidably connected to the annular guide rail (5), a placement groove (72) is provided in the middle of the upper end of the slide seat (71), a placement seat (73) is provided in the middle of the placement groove (72), a fixing column (74) is fixedly connected in the middle of the side of the slide seat (71) close to the belt (32), and the side of the fixing column (74) away from the slide seat (71) is fixedly connected to the belt (32); A moving mechanism (8), wherein the moving mechanism (8) is arranged between the slide seat (71) and the annular guide rail (5); A support plate (9), the support plate (9) being fixedly connected to the middle of the rear end of the upper side of the base (1); A fixing seat (10), wherein the fixing seat (10) is fixedly connected to the upper end of the support plate (9); A visual detection mechanism (11), wherein the visual detection mechanism (11) is arranged on one side of the lower end of the fixing seat (10); A lifting seat (12), wherein the lifting seat (12) is arranged on a side of the lower end of the fixed seat (10) away from the visual detection mechanism (11); A lifting mechanism (13), wherein the lifting mechanism (13) is arranged on the lifting seat (12); A positioning mechanism (14), the positioning mechanism (14) being arranged on the lifting seat (12), the positioning mechanism comprising a second cylinder (141) fixedly connected to the middle of the lower end of the lifting seat (12), the lower end of the second cylinder (141) being fixedly connected to a pressure pad (142); A detection mechanism (15) is arranged on a lifting seat (12), and comprises a movable groove (151) opened at the front and rear of one side of the lifting seat (12), a screw rod (152) is inserted in the middle of the movable groove (151), a detection pen (153) is fixedly connected to the lower end of the screw rod (152), a screw sleeve (154) is threadedly connected to the screw rod (152), the screw sleeve (154) is located at the upper end of the lifting seat (12), and a connector (155) is fixedly connected to the upper end of the screw rod (152).

2. A chip packaging pin detection device according to claim 1, characterized in that: The transmission mechanism (4) comprises: A motor (41), wherein the motor (41) is fixedly connected to the middle of one side of the lower end of the base (1), and the lower end of the pulley (31) at one end is fixedly connected to the output shaft at the upper end of the motor (41); A protective cover (42) is fixedly connected to the middle of one side of the lower end of the base (1), and the protective cover (42) is sleeved on the outside of the motor (41).

3. A chip packaging pin detection device according to claim 1, characterized in that: The moving mechanism (8) comprises: Connecting shafts (81), four of the connecting shafts (81) are fixedly connected to the four corners of the lower end of the slide seat (71); A roller (82) is rotatably connected to the connecting shaft (81), and a groove is provided on the side of the roller (82) for cooperating with the limiting protrusion (6).

4. A chip packaging pin detection device according to claim 1, characterized in that: The visual detection mechanism (11) comprises: A fixing rod (111), wherein the fixing rod (111) is fixedly connected to one side of the lower end of the fixing seat (10); A mounting seat (112), wherein the mounting seat (112) is fixedly connected to the lower end of the fixing rod (111); A visual camera (113), wherein the visual camera (113) is fixedly connected to the middle of the lower end of the mounting seat (112); A fill light (114), wherein the fill light (114) is fixedly connected to the lower end of the mounting base (112).

5. The chip packaging pin detection device according to claim 1, characterized in that: The lifting mechanism (13) comprises: Cylinder 1 (131), wherein the cylinder 1 (131) is fixedly connected to one side of the upper end of the fixing seat (10), and the lower end of the cylinder 1 (131) is fixedly connected to the middle of the upper end of the lifting seat (12); Sliding columns (132), two of the sliding columns (132) are fixedly connected to both sides of the upper end of the lifting seat (12), and the upper ends of the sliding columns (132) penetrate the fixed seat (10).

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