A device for automatic entry and exit of chip aging test boards

Abstract

This invention relates to the field of chip testing technology, specifically to an automatic chip aging test board loading and unloading device. The device includes a frame, characterized in that: one side of the frame is connected to a board placement mechanism via a lifting mechanism; a locking mechanism is located on one side of the board placement mechanism; a stop mechanism is located on the other side of the board placement mechanism; and a positioning mechanism is located at the lower end of the frame. Compared with existing technologies, the lifting mechanism allows adjustment of the height of the board placement mechanism, facilitating the movement of the aging test boards from the loading / unloading machine onto the frame; the locking and stop mechanisms secure the position of the aging test boards, preventing them from slipping; it eliminates the need for workers to manually move the boards one by one during the furnace loading process, avoiding damage caused by impact; and it also reduces the labor intensity of personnel, solving the problem of work efficiency.

Description

Technical Field

[0001] This invention relates to the field of chip testing technology, specifically to a device for automatically loading and unloading chip aging test boards. Background Technology

[0002] Currently, during aging tests, products are transferred from chip trays to the aging test board frame using a board loading / unloading machine, and then sent to the pre-burning oven to execute the corresponding test program. This process is used to verify whether the aging process has caused any parameter drift. This product testing process primarily uses single-board BIB operations, resulting in low operational efficiency.

[0003] In actual production, the ICs are placed onto the aging test boards using a loading and unloading machine. The rack frame of the loading and unloading machine is then moved to a manual trolley, which is then moved to the pre-firing furnace area. The aging test boards are then manually placed one by one into the furnace cavity for aging testing. This method is labor-intensive, and the aging test boards are prone to slipping off the trolley. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a device for automatically loading and unloading chip aging test boards.

[0005] To achieve the above objectives, an automatic chip aging test board loading and unloading device is designed, comprising a frame, characterized in that: one side of the frame is connected to a board placement mechanism via a lifting mechanism; a locking mechanism is provided on one side of the board placement mechanism; a stop mechanism is provided on the other side of the board placement mechanism; and a positioning mechanism is provided at the lower end of the frame.

[0006] The lifting mechanism includes a lifting motor, a coupling, a connecting plate, a screw, a fixed plate, a sliding plate, and a slide rail. Slide rails are provided at the left and right ends of the front side of the frame, and a lifting motor is provided inside the frame at the rear side of the slide rails. The output shaft of the lifting motor is connected to one end of the screw through the coupling. The other end of the screw is connected to the fixed plate and one end of the sliding plate. The other end of the sliding plate is connected to the slide rail. A screw connecting sleeve is provided at the connection between the screw and the fixed plate, and a bearing is sleeved at one end of the screw.

[0007] The plate placement mechanism includes side plates, rollers, and support plates. The left and right sliding plates are respectively connected to mounting plates, and the left and right sides of the mounting plates are respectively connected to side plates. Several rollers are provided between the side plates at the left and right ends. Guide strips are provided at the left and right ends of the rollers. An inverted U-shaped support frame is provided behind the rollers, and a stop mechanism is provided in front of the rollers.

[0008] The aforementioned gear mechanism includes a telescopic blocking block, upper and lower telescopic shafts, a protective cover, a mounting base, a guide shaft, a motor, and a motor mounting base. A telescopic blocking block is provided at one end of the front side of the roller. One end of the upper and lower telescopic shafts is connected to the middle of one side of the telescopic blocking block. The other end of the upper and lower telescopic shafts is connected to one end of a connecting rod through a transmission structure. The other end of the connecting rod is connected to the motor.

[0009] A protective cover is provided on the outside of the telescopic blocking block, a push block is provided on the back of the protective cover, and an installation block is provided below the protective cover. The left and right ends of the installation block are connected to the side plates through the mounting base. A limit switch is provided on one side of the lower end of the installation block. One end of the guide shaft is connected to the lower end of the telescopic blocking block. The other end of the guide shaft passes through the protective cover and the installation block respectively and is located below the installation block. A bearing is sleeved on the outside of the connecting rod.

[0010] The locking mechanism includes a guide rod, a second motor, and locking plates. The guide rod is located within the support frame, with several L-shaped locking plates connected to one side. A sensor is located on one side of the lower part of the guide rod, and a connecting rod is located on the other side of the lower part of the guide rod. The other end of the connecting rod is connected to the second motor via a transmission structure. A limiting block is located at the lower end of the guide rod. A first sensor is located on the side of the support frame, a second sensor is located at the top inner side of the support frame, and a precision locator is located at the top outer side of the support frame.

[0011] The positioning mechanism includes a hook fixing plate, a hook positioning block, and a hook. The hook fixing plate is located at the lower end of the frame and connected to the hook fixing plate. The hook positioning block is provided on the front side of the hook fixing plate. The hook positioning block has a hook front end at the upper end. The hook rear end passes through the hook positioning block and is located on the rear side of the hook positioning block. The hook front end has an upwardly protruding spring block.

[0012] The push block is provided with a locking mechanism on its front side. The locking mechanism includes a telescopic block, a fixing pin, a fixing seat, and a hook stop. A fixing seat is provided on the rear side of the push block. A movable cavity is provided in the center of the fixing seat. A hook stop and a telescopic block are provided from left to right in the movable cavity. A fixing pin is connected to one side of the hook stop. The left and right ends of the fixing pin pass through the left and right ends of the fixing seat, respectively. The structure of one end of the telescopic block is matched with the structure of the push block. The other end of the telescopic block is connected to a sliding pin. The left and right ends of the sliding pin pass through the left and right ends of the fixing seat, respectively, and the upper end of the sliding pin abuts against one side of the hook stop.

[0013] The other end of the telescopic block is connected to a guide pin. The left and right ends of the guide pin pass through the left and right ends of the fixed base, respectively, and the guide pin and the fixed pin are respectively connected to the two ends of the tension spring.

[0014] Safety blocks are provided on the frame below the skateboard.

[0015] The lower rear side of the frame is equipped with a brake, and the upper rear side of the frame is equipped with a positioning handle and a push-pull rod. The rear end of the frame is connected to a door panel via a hinge, and the door panel is equipped with a door lock. Above the door lock is an operation button.

[0016] The frame is equipped with a directional wheel at the front of the lower end, a swivel wheel at the rear of the lower end, and a crash bar on one side of the frame.

[0017] The frame is equipped with an operation screen, with an emergency stop button on one side and a start button on the other side.

[0018] A charging port is provided on one side of the rack.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The height of the plate-placing mechanism can be adjusted via the lifting mechanism, making it easier to move the aging test plates from the plate-unloading machine to the frame;

[0021] 2. The aging test board is fixed in position by locking mechanism and stop mechanism to prevent the aging test board from slipping;

[0022] 3. It eliminates the need for staff to move the test plates one by one during the furnace loading process, avoiding damage caused by impacts; at the same time, it reduces the labor intensity of personnel and solves the problem of work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the frame of the present invention. Figure 1 .

[0024] Figure 2 This is a schematic diagram of the structure of the frame of the present invention. Figure 2 .

[0025] Figure 3 This is a schematic diagram of the lifting mechanism of the present invention.

[0026] Figure 4 This is a schematic diagram of the locking mechanism of the present invention.

[0027] Figure 5 This is a schematic diagram of the gear shifting mechanism of the present invention.

[0028] Figure 6 This is a schematic diagram of the positioning mechanism of the present invention.

[0029] Figure 7 This is a schematic diagram of the locking mechanism of the present invention.

[0030] Figure 8 This is a schematic diagram of the structure of the present invention and the pre-firing furnace. Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings.

[0032] like Figure 1 As shown, one side of the frame 1 is connected to the plate placement mechanism 3 via the lifting mechanism 2. A locking mechanism 5 is provided on one side of the plate placement mechanism 3, and a stop mechanism 4 is provided on the other side of the plate placement mechanism 3. A positioning mechanism 6 is provided at the lower end of the frame 1. The lifting mechanism 2 includes a lifting motor, a coupling, a connecting plate, a screw, a fixing plate, a sliding plate, and a slide rail. Slide rails 2-1 are provided at the left and right ends of the front side of the frame 1, respectively. A lifting motor 2-2 is provided inside the frame 1 behind the slide rails 2-1. The output shaft of the lifting motor 2-2 is connected to one end of the screw 2-4 via the coupling 2-3. The other end of the screw 2-4 is connected to one end of the fixed plate 2-5 and the other end of the sliding plate 2-6. The other end of the sliding plate 2-6 is connected to the slide rail 2-1. A screw connecting sleeve 2-7 is provided at the connection between the screw 2-4 and the fixed plate 2-5. A bearing 2-8 is sleeved at one end of the screw 2-4.

[0033] The plate placement mechanism 3 includes side plates, rollers, and support plates. The left and right sliding plates 2-6 are respectively connected to the mounting plate 3-1. The left and right sides of the mounting plate 3-1 are respectively connected to the side plates 3-2. Several rollers 3-3 are provided between the side plates 3-2 at the left and right ends. Guide strips 3-4 are provided at the left and right ends of the rollers 3-3. An inverted U-shaped support frame 3-5 is provided behind the rollers 3-3. A stop mechanism 4 is provided in front of the rollers 3-3.

[0034] The stop mechanism includes a telescopic blocking block, upper and lower telescopic shafts, a protective cover, a mounting base, a guide shaft, a motor, and a motor mounting base. A telescopic blocking block 4-1 is provided at one end of the front side of the roller 3-3. One end of the upper and lower telescopic shaft 4-2 is connected to the middle of one side of the telescopic blocking block 4-1. The other end of the upper and lower telescopic shaft 4-2 is connected to one end of the connecting rod 4-3 through a transmission structure. The other end of the connecting rod 4-3 is connected to the motor 4-4.

[0035] A protective cover 4-5 is provided on the outside of the telescopic blocking block 4-1. A push block 4-6 is provided on the rear side of the protective cover 4-5. A mounting block 4-7 is provided below the protective cover 4-5. The left and right ends of the mounting block 4-7 are connected to the side plate 3-2 through the mounting seat 4-8. A limit switch 4-9 is provided on one side of the lower end of the mounting block 4-7. One end of the guide shaft 4-10 is connected to the lower end of the telescopic blocking block 4-1. The other end of the guide shaft 4-10 passes through the protective cover 4-5 and the mounting block 4-7 respectively and is located below the mounting block 4-7. A bearing 4-11 is sleeved on the outside of the connecting rod 4-3.

[0036] The locking mechanism includes a guide rod, a second motor, and locking plates. A guide rod 5-1 is located inside the support frame 3-5. Several L-shaped locking plates 5-2 are connected to one side of the guide rod 5-1. A sensor 5-3 is located on one side of the lower part of the guide rod 5-1. A connecting rod 5-4 is located on the other side of the lower part of the guide rod 5-1. The other end of the connecting rod 5-4 is connected to the second motor 5-5 via a transmission structure. A limiting block 5-9 is located at the lower end of the guide rod 5-1. A sensor 5-6 is located on the side of the support frame 3-5. A second sensor 5-7 is located at the top inner side of the support frame 3-5. A precision locator 5-8 is located at the top outer side of the support frame 3-5.

[0037] The positioning mechanism includes a hook fixing plate 6-1, a hook positioning block 6-2, and a hook 6-3. The hook fixing plate 6-1 is located at the lower end of the frame 1. The hook positioning block 6-2 is located on the front side of the hook fixing plate 6-1. The front end of the hook 6-3 is located on the upper end of the hook positioning block 6-2. The rear end of the hook 6-3 passes through the hook positioning block 6-2 and is located on the rear side of the hook positioning block 6-2. A spring block 6-4 with an upward protrusion is provided at the front end of the hook 6-3.

[0038] A locking mechanism is provided on the front side of the push block 4-6. The locking mechanism includes a telescopic block 7-1, a fixing pin 7-2, a fixing seat 7-3, and a hook stop 7-4. A fixing seat 7-3 is provided on the rear side of the push block 4-6. A movable cavity 7-5 is provided in the center of the fixing seat 7-3. A hook stop 7-4 and a telescopic block 7-1 are provided from left to right in the movable cavity 7-5. A fixing pin 7-2 is connected to one side of the hook stop 7-4. The left and right ends of the fixing pin 7-2 pass through the left and right ends of the fixing seat 7-3, respectively. The structure of one end of the telescopic block 7-1 is matched with the structure of the push block 4-6. The other end of the telescopic block 7-1 is connected to a sliding pin 7-6. The left and right ends of the sliding pin 7-6 pass through the left and right ends of the fixing seat 7-3, and the upper end of the sliding pin 7-6 abuts against one side of the hook stop 7-4.

[0039] The other end of the telescopic block 7-1 is connected to the guide pin 7-7. The left and right ends of the guide pin 7-7 pass through the left and right ends of the fixed seat 7-3 respectively, and the guide pin 7-7 and the fixed pin 7-2 are respectively connected to the two ends of the tension spring 7-8.

[0040] Safety block 1-1 is provided on the frame 1 below the slide 2-6.

[0041] A brake 1-2 is located on the lower rear side of the frame 1. A positioning handle 1-3 and a push-pull rod 1-4 are located on the upper rear side of the frame 1. A door panel 1-5 is connected to the rear end of the frame 1 via a hinge. A door lock 1-6 is located on the door panel 1-5, and an operation button 1-7 is located above the door lock 1-6. A directional wheel 1-8 is located on the lower front side of the frame 1, and a swivel wheel 1-9 is located on the lower rear side of the frame 1. A bumper strip 1-14 is located on one side of the frame 1. An operation panel 1-10 is located at the upper end of the frame 1. An emergency stop button 1-11 is located on one side of the operation panel 1-10, and a start button 1-12 is located on the other side of the operation panel 1-10. A charging port 1-13 is located on one side of the frame 1.

[0042] Rack 1 should be operated as follows:

[0043] S1, connect the hook positioning block 6-2 at the bottom of the frame 1 to the guide positioning frame 8 fixed on the ground of the unloading machine platform, and the spring block 6-4 at the front end of the hook 6-3 is locked on the guide positioning frame 8 to lock and position the frame 1.

[0044] S2, by selecting the corresponding loading and unloading machine type through the operation screen 1-10 at the top of the frame 1, the lifting mechanism 2 of the frame 1 will automatically lift and lower according to the custom height setting, raising the plate placement mechanism 3 to the height matching the loading and unloading machine. At the same time, a laser beam can be used for precise positioning and position verification.

[0045] S3, the frame 10, fully loaded with aging test panels, is pulled out of the loading and unloading machine along the rollers. When the frame contacts the rear sensor 5-6 and remains in this position for 3 seconds, the motor 4-4 at the front of the frame 1 starts, driving the connecting rod 4-3. The telescopic blocking block 4-1 automatically rises, blocking the frame 10 and preventing it from sliding backward. At the same time, the sensor 5-7 at the upper end of the locking mechanism 5 detects whether there is any obstruction on the handle of the aging test panel. If there is no obstruction, the motor 5-5 drives the locking plate 5-2 to descend, locking the handle 9 of each aging test panel. If there is obstruction, the system alarms. After readjusting the position of the handle 9 of the aging test panel, the handle 9 of the aging test panel is locked again.

[0046] S4, separate the hook at the bottom of the frame 1 from the guide positioning frame 8 on the ground of the unloading machine platform, push the frame 1 to the position of the pre-fired furnace 11, and lock and position it by the guide positioning frame 8 on the ground of the pre-fired furnace 11.

[0047] S5, the frame 1 and the pre-fired furnace 11 are locked by a locking mechanism. The locking mechanism is installed at the entrance of the pre-fired furnace 11. When locking, the push block 4-6 at the front end of the frame 1 presses against the telescopic block 7-1, which drives the front end of the hook block 7-4 to move downward. The frame 10 with the full load of aging test plates slides forward along the roller 3-3 and pushes the frame 10 with the full load of aging test plates into the pre-fired furnace 11.

[0048] S6, after the push frame reaches the position inside the furnace, the separation frame 1 and the guide positioning frame 8 on the ground of the pre-fired furnace 11, at this time the front end of the hook block 7-4 pops up and locks the outer edge of the frame 10 to prevent the frame 10 from slipping.

Claims

1. A device for automatic in-out of chip burn-in test board, comprising a rack, characterized in that: The rack (1) is connected with the plate mechanism (3) through the lifting mechanism (2), the locking mechanism (5) is arranged on one side of the plate mechanism (3), the gear mechanism (4) is arranged on the other side of the plate mechanism (3), and the positioning mechanism (6) is arranged at the lower end of the rack (1), The lifting mechanism (2) comprises a lifting motor, a shaft coupling, a connecting plate, a screw rod, a fixed plate, a sliding plate and a sliding rail, sliding rails (2-1) are arranged at the left and right ends of the front side of the rack (1), the lifting motor (2-2) is arranged in the rack (1) at the rear side of the sliding rail (2-1), the output shaft of the lifting motor (2-2) is connected with one end of the screw rod (2-4) through the shaft coupling (2-3), the other end of the screw rod (2-4) is connected with the fixed plate (2-5), one end of the sliding plate (2-6) is connected with the fixed plate (2-5), the other end of the sliding plate (2-6) is connected with the sliding rail (2-1), a screw rod connecting sleeve (2-7) is arranged at the connecting position of the screw rod (2-4) and the fixed plate (2-5), and a bearing one (2-8) is arranged at one end of the screw rod (2-4); The plate mechanism (3) comprises a side plate, a roller and a supporting plate, the left and right sliding plates (2-6) are connected with mounting plates (3-1) respectively, the mounting plates (3-1) are connected with the side plates (3-2) respectively, a plurality of rollers (3-3) are arranged between the left and right side plates (3-2), guide strips (3-4) are arranged at the left and right ends of the rollers (3-3), a supporting frame (3-5) in the shape of inverted U is arranged at the rear side of the roller (3-3), and the gear mechanism (4) is arranged at the front side of the roller (3-3); The gear mechanism comprises a telescopic blocking block, an up-down telescopic shaft, a protective cover, a mounting seat, a guide shaft, a motor one and a motor mounting seat, the telescopic blocking block (4-1) is arranged at one end of the front side of the roller (3-3), one side of the middle part of the telescopic blocking block (4-1) is connected with one end of the up-down telescopic shaft (4-2), the other end of the up-down telescopic shaft (4-2) is connected with one end of the connecting rod (4-3) through a transmission structure, and the other end of the connecting rod (4-3) is connected with the motor one (4-4); The protective cover (4-5) is arranged outside the telescopic blocking block (4-1), the push block (4-6) is arranged at the rear side of the protective cover (4-5), the mounting block (4-7) is arranged below the protective cover (4-5), the mounting block (4-7) is connected with the side plates (3-2) through the mounting seats (4-8) at the left and right ends, the limit switch (4-9) is arranged at one side of the lower end of the mounting block (4-7), one end of the guide shaft (4-10) is connected with the telescopic blocking block (4-1) at the lower end, the other end of the guide shaft (4-10) penetrates through the protective cover (4-5) and the mounting block (4-7) and is arranged below the mounting block (4-7), and the bearing two (4-11) is arranged outside the connecting rod (4-3). The locking mechanism includes a guide rod, a motor two, a locking plate, a guide rod (5-1) is arranged in the support frame (3-5), a plurality of L-shaped locking plates (5-2) are connected to one side of the guide rod (5-1), a sensor (5-3) is arranged on one side of the lower part of the guide rod (5-1), a connecting rod (5-4) is arranged on the other side of the lower part of the guide rod (5-1), one end of the connecting rod (5-4) is connected to a motor two (5-5) through a transmission structure, a limiting block (5-9) is arranged at the lower end of the guide rod (5-1), a sensor one (5-6) is arranged on the side of the support frame (3-5), a sensor two (5-7) is arranged at the top of the inner side of the support frame (3-5), and a fine positioner (5-8) is arranged at the top of the outer side of the support frame (3-5). The positioning mechanism includes a hook fixing plate (6-1), a hook positioning block (6-2) and a hook (6-3), the hook fixing plate (6-1) is connected to the lower end of the rack (1), the hook positioning block (6-2) is arranged on the front side of the hook fixing plate (6-1), the hook (6-3) is arranged on the upper end of the hook positioning block (6-2), the rear end of the hook (6-3) penetrates through the hook positioning block (6-2) and is arranged on the rear side of the hook positioning block (6-2), and the front end of the hook (6-3) is provided with an upwardly protruding spring block (6-4).

2. The device for automatic in and out of chip aging test board according to claim 1, characterized in that: The front side of the push block (4-6) is provided with a locking mechanism, the locking mechanism includes a telescopic blocking block (7-1), a fixed pin (7-2), a fixed seat (7-3) and a hook blocking block (7-4), the fixed seat (7-3) is arranged on the rear side of the push block (4-6), the center of the fixed seat (7-3) is provided with a movable cavity (7-5), the hook blocking block (7-4) and the telescopic blocking block (7-1) are arranged in the movable cavity (7-5) from left to right, the hook blocking block (7-4) is connected to the fixed pin (7-2) on one side, the left and right ends of the fixed pin (7-2) penetrate through the left and right ends of the fixed seat (7-3) respectively, the structure of one end of the telescopic blocking block (7-1) is matched with the structure of the push block (4-6), the other end of the telescopic blocking block (7-1) is connected to a sliding pin shaft (7-6), the left and right ends of the sliding pin shaft (7-6) penetrate through the left and right ends of the fixed seat (7-3) respectively, and the upper end of the sliding pin shaft (7-6) abuts against one side of the hook blocking block (7-4).

3. The device for automatic in and out of chip burn-in test board according to claim 2, characterized in that: The other end of the telescopic blocking block (7-1) is connected to a guide pin shaft (7-7), the left and right ends of the guide pin shaft (7-7) penetrate through the left and right ends of the fixed seat (7-3) respectively, and the guide pin shaft (7-7) and the fixed pin (7-2) are connected to the two ends of a tension spring (7-8) respectively.

4. The device for automatic in and out of chip aging test board according to claim 1, characterized in that: The rack (1) on the lower side of the sliding plate (2-6) is provided with a safety block (1-1).

5. The device for automatic in and out of chip aging test board according to claim 1, characterized in that: The rear side of the rack (1) is provided with a brake (1-2), the upper part of the rear side of the rack (1) is provided with a positioning handle (1-3) and a push-pull rod (1-4), one end of the rear side of the rack (1) is connected to a door plate (1-5) through a hinge, the door plate (1-5) is provided with a door lock (1-6), and the upper side of the door lock (1-6) is provided with an operation button (1-7).

6. The device for automatic in and out of chip aging test board according to claim 1, characterized in that: The lower end of the rack (1) is provided with a directional wheel (1-8) on the front side, the lower end of the rack (1) is provided with a universal wheel (1-9) on the rear side, and the rack (1) is provided with a bumper strip (1-14) on one side.

7. The device for automatic in and out of chip aging test board according to claim 1, characterized in that: The upper end of the rack (1) is provided with an operation screen (1-10), one side of the operation screen (1-10) is provided with an emergency stop button (1-11), and the other side of the operation screen (1-10) is provided with a start button (1-12).

8. The device for automatic in and out of chip aging test board according to claim 1, characterized in that: One side of the rack (1) is provided with a charging interface (1-13).

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