Screening device for chip production

Abstract

The utility model relates to the technical field of chip screening, in particular to a screening device for chip production, which comprises a detecting component, a conveying component and a screening component, the conveying component comprises a connecting frame, two spindles are rotatably connected onto the connecting frame, a checking conveying table is connected onto the spindles in a friction manner, and the screening component comprises a support frame. The supporting frame is fixedly installed on the base, the supporting frame is rotationally connected with an upper rotating shaft, the two ends of the upper rotating shaft are fixedly connected with two connecting transverse rods and an upper gear respectively, the connecting transverse rods are further fixedly connected to the connecting frame, and the inspection conveying table is controlled to rotate around the axis of the upper rotating shaft through the connecting transverse rods, the upper gear and the upper rotating shaft. The chips slide to the two sides from the inspection conveying table, and therefore screening of the chips is achieved; and the cambered surface is arranged on the connecting plate, so that the chip can stably fall onto an external conveying platform when sliding down, and the chip is prevented from being damaged due to impact.

Description

Technical Field

[0001] The utility model relates to the technical field of chip screening, in particular to a screening device for chip production. Background Art

[0002] Chips are the core components of integrated circuits, and their quality and performance directly affect the performance and reliability of electronic products. In the chip production process, appearance inspection and screening are one of the key steps to ensure chip quality.

[0003] The invention patent with publication number CN115684015A discloses a chip appearance detection mechanism, including a test platform and an inclined slot base and a test seat body arranged on the test platform. The shadow imaging formed by vertical illumination is used to detect chip pins, and the effect is more comprehensive and sufficient.

[0004] The above patent is inefficient when performing chip appearance inspection and is not suitable for the automated and efficient working environment in chip production. Utility Model Content

[0005] The utility model aims to provide a screening device for chip production, which can realize rapid screening of chips with unqualified appearance during chip production.

[0006] The utility model is realized through the following technical scheme: a screening device for chip production, comprising a detection component, a conveying component and a screening component, the detection component comprising a base, four cylinders are fixedly mounted on the base, a top bracket is fixedly connected to the cylinder, a detection mechanism is fixedly mounted on the top bracket, the conveying component comprises a connecting frame, two main shafts are rotatably connected to the connecting frame, an inspection conveying platform is frictionally connected to the main shaft, the screening component comprises a supporting frame, the supporting frame is fixedly mounted on the base, an upper rotating shaft is rotatably connected to the supporting frame, two connecting cross bars and an upper gear are respectively fixedly connected at both ends of the upper rotating shaft, and the connecting cross bars are also fixedly connected to the connecting frame.

[0007] In order to better realize the utility model, further, the connecting frame is rotatably connected to an inner transmission shaft, the inner transmission shaft is fixedly connected to an inner bevel gear, the inner transmission shaft and the main shaft are frictionally connected by a first belt, and the two main shafts are frictionally connected by a second belt.

[0008] In order to better realize the utility model, further, a motor and two side brackets are fixedly installed on the base, a horizontal axis and an outer transmission shaft are rotatably connected to the side bracket, the horizontal axis and the output end of the motor are frictionally connected by a belt, the outer transmission shaft and the horizontal axis are frictionally connected by a third belt, an outer bevel gear is fixedly connected to the outer transmission shaft, and the outer bevel gear is meshed with the inner bevel gear.

[0009] In order to better realize the utility model, further, a connecting plate is fixedly installed on the connecting cross bar, and a curved surface is arranged on the connecting plate.

[0010] In order to better realize the utility model, further, the support frame is rotatably connected to a lower rotating shaft, both ends of the lower rotating shaft are fixedly connected to lower gears, the lower gears are meshed with the upper gears, a sliding frame is fixedly installed on the base, a sliding rod and a push block are slidably connected to the sliding frame, a T-shaped block is fixedly connected to the first end of the sliding rod, and the second end of the sliding rod is slidably connected to the push block.

[0011] In order to better realize the utility model, further, the T-shaped block is provided with teeth, which mesh with the lower gear.

[0012] In order to better realize the utility model, further, a screening cylinder is fixedly installed on the base, an output end of the screening cylinder is fixedly connected to an intermediate connecting rod, and both ends of the intermediate connecting rod are fixedly connected to the push block.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] 1. The utility model controls the inspection and conveying platform to rotate around the axis of the upper rotating shaft by setting a connecting cross bar, an upper gear and an upper rotating shaft, so that the chips slide from the inspection and conveying platform to both sides, thereby realizing the screening of the chips.

[0015] 2. The utility model provides an arc surface on the connecting plate so that the chip can fall smoothly onto the external conveying platform when it slides, thereby preventing the chip from being damaged due to impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the inspection conveyor platform of the utility model from the first perspective;

[0018] Figure 3 This is a schematic diagram of the structure of the inspection conveyor platform of the utility model from a second viewing angle;

[0019] Figure 4 for Figure 4 Schematic diagram of the local structure at A in the middle;

[0020] Figure 5 It is a structural schematic diagram of the horizontal axis of the utility model;

[0021] Figure 6 for Figure 5 The structural diagram at B in the middle;

[0022] Figure 7This is a schematic diagram of the structure of the support frame of the utility model;

[0023] Figure 8 for Figure 7 Schematic diagram of the local structure at C in the middle;

[0024] Fig. 9 It is a structural schematic diagram of the intermediate connecting rod of the utility model;

[0025] Among them, 1-detection component; 2-conveying component; 3-screening component; 101-base; 102-cylinder; 103-top bracket; 104-detection mechanism; 105-feeding conveyor platform; 106-discharging conveyor platform; 201-inspection conveyor platform; 202-spindle; 203-connecting frame; 204-inner transmission shaft; 205-inner bevel gear; 206-first belt; 207-second belt; 208-side bracket; 20 9- horizontal axis; 210- third belt; 211- external transmission shaft; 212- external bevel gear; 213- motor; 214- connecting plate; 301- connecting cross bar; 302- upper gear; 303- upper rotating shaft; 304- supporting frame; 305- lower rotating shaft; 306- lower gear; 307- T-shaped block; 308- sliding rod; 309- pushing block; 310- intermediate connecting rod; 311- screening cylinder; 312- sliding frame. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] like Figures 1 to 9 As shown, a screening device for chip production includes a detection component 1, a conveying component 2 and a screening component 3, the detection component 1 includes a base 101, four cylinders 102 are fixedly mounted on the base 101, a top bracket 103 is fixedly connected to the cylinder 102, a detection mechanism 104 is fixedly mounted on the top bracket 103, the conveying component 2 includes a connecting frame 203, two main shafts 202 are rotatably connected to the connecting frame 203, an inspection conveying platform 201 is frictionally connected to the main shaft 202, the screening component 3 includes a supporting frame 304, the supporting frame 304 is fixedly mounted on the base 101, an upper rotating shaft 303 is rotatably connected to the supporting frame 304, two connecting cross bars 301 and an upper gear 302 are respectively fixedly connected at both ends of the upper rotating shaft 303, and the connecting cross bars 301 are also fixedly connected to the connecting frame 203.

[0029] When in use, the chip is placed on the movable plate. The place where the movable plate contacts the chip is made of buffer material, and the place where the movable plate contacts the inspection and conveying platform 201 is made of smooth material with small friction, so that the movable plate can slide off the inspection and conveying platform 201 and the connecting plate 214 easily, and the buffer material can provide cushioning to protect the chip.

[0030] During inspection, the produced chips are conveyed to the inspection conveyor 201 through the feeding conveyor 105, and then the cylinder 102 controls the top support 103 and the inspection mechanism 104 to descend, so that the inspection mechanism 104 is close to the chip, so as to use the computer vision and image processing technology on the inspection mechanism 104, and realize automatic inspection of the chip appearance by performing operations such as feature extraction and matching on the chip appearance image, and judge the qualification of the chip according to the inspection result. If the chip meets the requirements, it is conveyed out through the inspection conveyor 201 and the discharging conveyor 106 for the next operation; if it does not meet the requirements, it is screened according to the degree of appearance defects, that is, slight damage or severe damage, and the inspection conveyor 201 is controlled to rotate around the axis of the upper rotating shaft 303 on the support frame 304, so that the chip slides to both sides, and then proceeds to the next step of processing. Slightly damaged ones are simply cleaned and repaired, and severely damaged ones need to be more deeply inspected and evaluated, so as to determine whether the chip can be repaired or directly scrapped.

[0031] When the inspection is qualified, the inspection mechanism 104 is controlled to be lifted, and the chip is transported to the discharge conveyor platform 106 through the inspection conveyor platform 201 , and then transported out through the discharge conveyor platform 106 .

[0032] When screening is required, the upper gear 302 on one side is controlled to rotate. Since the upper gear 302 is fixedly connected to the connecting cross bar 301 and the upper rotating shaft 303, when the upper gear 302 rotates, the connecting cross bar 301 and the upper rotating shaft 303 are driven to rotate around the axis of the upper rotating shaft 303 on the support frame 304. Since the connecting cross bar 301 and the connecting frame 203 are fixedly connected, the connecting frame 203, the main shaft 202 and the inspection and conveying platform 201 are also driven to rotate around the axis of the upper rotating shaft 303, thereby lifting one side of the inspection and conveying platform 201 and causing the chips on the inspection and conveying platform 201 to slide off, thereby realizing chip screening.

[0033] Embodiment 2:

[0034] As shown in the figure, the conveyor assembly 2 is Figure 7 As shown, the connecting frame 203 is rotatably connected to an inner transmission shaft 204 , the inner transmission shaft 204 is fixedly connected to an inner bevel gear 205 , the inner transmission shaft 204 is frictionally connected to the main shaft 202 via a first belt 206 , and the two main shafts 202 are frictionally connected via a second belt 207 .

[0035] A motor 213 and two side brackets 208 are fixedly mounted on the base 101, and a transverse shaft 209 and an outer transmission shaft 211 are rotatably connected to the side bracket 208. The transverse shaft 209 is frictionally connected to the output end of the motor 213 via a belt, and the outer transmission shaft 211 is frictionally connected to the transverse shaft 209 via a third belt 210. An outer bevel gear 212 is fixedly connected to the outer transmission shaft 211, and the outer bevel gear 212 is meshed with the inner bevel gear 205.

[0036] A connecting plate 214 is fixedly mounted on the connecting cross bar 301 , and a curved surface is provided on the connecting plate 214 .

[0037] When conveying chips, the motor 213 drives the horizontal axis 209 to rotate on the side bracket 208, so that the side bracket 208 drives the outer transmission shaft 211 to rotate on the side bracket 208 through the third belt 210, and then the outer transmission shaft 211 drives the outer bevel gear 212 to rotate, and through the meshing relationship between the outer bevel gear 212 and the inner bevel gear 205, the inner bevel gear 205 and the inner transmission shaft 204 are driven to rotate, and the inner transmission shaft 204 drives the main shaft 202 to rotate through the first belt 206, and then the second belt 207 is used to keep the rotation of the two main shafts 202 consistent, thereby realizing stable conveying of chips.

[0038] When screening chips, the chips slide from the inspection conveyor 201 to the connecting plate 214, and finally fall smoothly onto the external conveyor belt through the curved surface of the connecting plate 214, so as to avoid damage to the chips due to impact.

[0039] Embodiment three:

[0040] like Figure 4 , Figure 8 and Fig. 9 As shown, the support frame 304 is rotatably connected to a lower rotating shaft 305, and both ends of the lower rotating shaft 305 are fixedly connected to lower gears 306, and the lower gear 306 is meshed with the upper gear 302. A sliding frame 312 is fixedly installed on the base 101, and a sliding rod 308 and a push block 309 are slidably connected to the sliding frame 312. A T-shaped block 307 is fixedly connected to the first end of the sliding rod 308, and the second end of the sliding rod 308 is slidably connected to the push block 309.

[0041] The T-shaped block 307 is provided with teeth, which mesh with the lower gear 306 .

[0042] A screening cylinder 311 is fixedly mounted on the base 101 , an output end of the screening cylinder 311 is fixedly connected to an intermediate connecting rod 310 , and both ends of the intermediate connecting rod 310 are fixedly connected to the push block 309 .

[0043] When in use, the expansion and contraction of the screening cylinder 311 is controlled according to the judgment of the chip appearance. When the judgment result is slight damage, such as Fig. 9 In the state shown, the screening cylinder 311 is controlled to extend, and the output end of the screening cylinder 311 pushes the middle connecting rod 310 and the push block 309 to slide rightward on the sliding frame 312, and the push block 309 pushes the two right sliding rods 308 to slide on the sliding frame 312, and then pushes the T-shaped block 307 through the sliding rod 308. Because the teeth on the T-shaped block 307 are engaged with the lower gear 306, the T-shaped block 307 drives the lower gear 306 to rotate counterclockwise, and because the lower gear 306 is engaged with the upper gear 302, the lower gear 306 drives the upper gear 302 It rotates clockwise, and then the upper gear 302 drives the connecting cross bar 301 and the upper rotating shaft 303 to rotate clockwise on the support frame 304, and drives the connecting frame 203, the main shaft 202 and the inspection and conveying platform 201 to rotate clockwise, and drives the connecting plate 214 to rotate with the inspection and conveying platform 201 through the connecting cross bar 301, so as to maintain smooth contact between the inspection and conveying platform 201 and the connecting plate 214, so as to avoid shaking due to the unevenness of the connection when the chip slides from the inspection and conveying platform 201 to the connecting plate 214, thereby ensuring stable conveying of the chip.

[0044] After the chip slides down, the screening cylinder 311 is controlled to reset. Under the action of the gravity of the inspection conveying platform 201, the main shaft 202 and the connecting frame 203, the upper gear 302 and the upper rotating shaft 303 are driven to rotate in the opposite direction on the support frame 304 through the connecting cross bar 301, and the T-block 307 and the sliding rod 308 are driven to reset through the meshing relationship between the upper gear 302 and the lower gear 306 and the meshing relationship between the lower gear 306 and the T-block 307.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A screening device for chip production, comprising a detection component (1), a conveying component (2) and a screening component (3), wherein the detection component (1) comprises a base (101), four cylinders (102) are fixedly mounted on the base (101), a top bracket (103) is fixedly connected to the cylinder (102), and a detection mechanism (104) is fixedly mounted on the top bracket (103), characterized in that: The conveying assembly (2) comprises a connecting frame (203), two main shafts (202) are rotatably connected to the connecting frame (203), and an inspection conveying platform (201) is frictionally connected to the main shaft (202). The screening assembly (3) comprises a supporting frame (304), the supporting frame (304) is fixedly mounted on the base (101), an upper rotating shaft (303) is rotatably connected to the supporting frame (304), two ends of the upper rotating shaft (303) are respectively fixedly connected to two connecting cross bars (301) and an upper gear (302), and the connecting cross bar (301) is also fixedly connected to the connecting frame (203).

2. A chip production screening device according to claim 1, characterized in that: The connecting frame (203) is rotatably connected to an inner transmission shaft (204), an inner bevel gear (205) is fixedly connected to the inner transmission shaft (204), the inner transmission shaft (204) and the main shaft (202) are frictionally connected via a first belt (206), and the two main shafts (202) are frictionally connected via a second belt (207).

3. A chip production screening device according to claim 2, characterized in that: A motor (213) and two side brackets (208) are fixedly mounted on the base (101); a transverse shaft (209) and an external transmission shaft (211) are rotatably connected to the side bracket (208); the transverse shaft (209) and an output end of the motor (213) are frictionally connected via a belt; the external transmission shaft (211) and the transverse shaft (209) are frictionally connected via a third belt (210); an external bevel gear (212) is fixedly connected to the external transmission shaft (211); and the external bevel gear (212) is meshed with the internal bevel gear (205).

4. A chip production screening device according to claim 1, characterized in that: A connecting plate (214) is fixedly mounted on the connecting cross bar (301), and a curved surface is provided on the connecting plate (214).

5. The chip production screening device according to claim 1, characterized in that: The support frame (304) is rotatably connected to a lower rotating shaft (305), and lower gears (306) are fixedly connected to both ends of the lower rotating shaft (305), and the lower gears (306) are meshed with the upper gears (302). A sliding frame (312) is fixedly installed on the base (101), and a sliding rod (308) and a push block (309) are slidably connected to the sliding frame (312), a T-shaped block (307) is fixedly connected to the first end of the sliding rod (308), and the second end of the sliding rod (308) is slidably connected to the push block (309).

6. A chip production screening device according to claim 5, characterized in that: The T-shaped block (307) is provided with teeth which mesh with the lower gear (306).

7. A chip production screening device according to claim 6, characterized in that: A screening cylinder (311) is fixedly mounted on the base (101), an output end of the screening cylinder (311) is fixedly connected to an intermediate connecting rod (310), and both ends of the intermediate connecting rod (310) are fixedly connected to the push block (309).

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