U disk chip grabbing mechanism

Abstract

The present invention provides a U disk chip grabbing mechanism, which belongs to the field of mechanical technology. It solves the problem of poor cleaning effect of existing equipment. The U disk chip grabbing mechanism includes a vacuum suction cup with a disk body and a vacuum tube. The disk body is covered with a cover body with an annular cavity, and the wall of the annular cavity is penetrated by a spray hole. The vacuum tube is provided with a cylinder body and is rotatably provided with a bearing. The lower end of the cylinder body is fixedly connected to the cover body; an air extraction pipe is inserted into the upper end of the cylinder body, the lower end of the air extraction pipe is connected to the vacuum extraction pipe, and the upper end of the air extraction pipe extends out of the cylinder body; a closed annular air supply cavity is formed between the air extraction pipe and the cylinder body, and an air supply channel with an inlet and an outlet is provided inside the wall of the air extraction pipe. The inlet is located on the outer wall of the upper end of the air extraction pipe, and the outlet is connected to the air supply cavity; a connecting pipe is fixed between the cover body and the cylinder body, and the two ends of the connecting pipe are respectively connected to the air supply cavity and the annular cavity; a motor is fixed to the outer end of the upper end of the air extraction pipe, and the motor drives the cylinder body to rotate through a transmission structure. The U disk chip grabbing mechanism has a good cleaning effect.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a grabbing mechanism, in particular to a U disk chip grabbing mechanism. Background Art

[0002] The full name of USB flash drive is a miniature high-capacity mobile storage product that uses a USB interface and does not require a physical drive. It is connected to a computer through a USB interface to achieve plug-and-play.

[0003] The chip is the core component of the USB flash drive. During the chip processing process, such as the thinning process, a vacuum suction cup is needed to clamp and fix the chip. After the thinning is completed, the vacuum suction cup needs to be broken before the processed chip can be removed. The vacuum breaking process requires blowing air between the vacuum suction cup and the chip. Under the action of the airflow, the dirt generated during the thinning process will fall on the thinning surface of the chip, causing contamination problems on the chip surface.

[0004] People have realized the shortcomings of the above problems and have made improvements. For example, a chip grasping structure and chip processing equipment disclosed in the Chinese Patent Library (application number: 201821358575.0) include a body for grasping the chip and a fluid nozzle for spraying fluid onto the surface of the chip, and the fluid nozzles are provided in plurality, and the plurality of fluid nozzles are distributed along the circumference of the body; the body includes a suction cup, and the direction of the fluid nozzle has an angle with the surface of the chip, and along the axial direction of the suction cup from the suction cup to the chip, the direction of the fluid nozzle is inclined toward the radial outside of the suction cup.

[0005] In the above-mentioned device, although a plurality of fluid nozzles are distributed circumferentially, there is still a gap between two adjacent fluid nozzles, resulting in a spray blind area, which affects the cleaning effect. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems in the existing technology and to provide a USB chip grabbing mechanism that can enhance the anti-contamination effect.

[0007] The purpose of the present invention can be achieved through the following technical solutions: a U disk chip grabbing mechanism comprises a vacuum suction cup with a disk body and a vacuum tube, the disk body is covered with a cover body with an annular cavity, and a circle of injection holes is penetrated on the cavity wall of the annular cavity, which is characterized in that a cylinder is arranged on the outer surface of the vacuum tube and rotates through a bearing, and the lower end of the cylinder is fixedly connected to the cover body; an exhaust pipe is inserted into the upper end of the cylinder, the lower end of the exhaust pipe is fixedly connected and communicated with the vacuum tube, and the upper end of the exhaust pipe extends out of the cylinder; a closed annular air supply cavity is formed between the exhaust pipe and the cylinder, and the air supply cavity is coaxial with the cylinder; an air supply channel with an inlet and an outlet is provided inside the tube wall of the exhaust pipe, the inlet is located on the outer wall of the upper end of the exhaust pipe, and the outlet is connected to the air supply cavity; a connecting pipe is fixed between the cover body and the cylinder, and the two ends of the connecting pipe are respectively connected to the air supply cavity and the annular cavity; a motor is fixed outside the upper end of the exhaust pipe, and the motor drives the cylinder to rotate through a transmission structure.

[0008] During installation, the exhaust pipe is connected to the negative pressure device and is driven by the driving device to move up and down, and the inlet of the air supply channel is connected to the air supply device; during use, the negative pressure device is in operation, and the exhaust pipe and the vacuum tube cooperate to form a negative pressure in the disk body to absorb the U disk chip; the air supply device sends air into the air supply channel, and the gas enters the annular cavity through the air supply cavity and the connecting pipe, and is ejected through the injection hole; the motor drives the cover body to rotate through the cylinder, so that the injection hole follows the rotation to fill the gap between the two adjacent injection holes, so as to form a circle of gas in the circumferential direction, effectively enhancing the contact area between the gas and the chip, increasing the difficulty of stains remaining on the chip, and having a good anti-fouling effect.

[0009] In the above-mentioned U disk chip grabbing mechanism, the above-mentioned exhaust pipe includes two sealing rings and a tubular body, and the above-mentioned air supply channel is arranged on the body; an annular groove is opened on the outer wall of the body, and the sealing ring is sleeved and fixed on the body, the annular groove is located between the two sealing rings, and the annular groove, the two sealing rings and the inner wall of the cylinder form the above-mentioned air supply cavity, which has the advantages of simple structure and good stability.

[0010] In the above-mentioned U disk chip grabbing mechanism, a tube portion is integrally formed on the bottom wall of the body, the tube portion is inserted into the vacuum tube, and the tube portion and the vacuum tube are sealed and fixedly connected, which facilitates the connection between the vacuum tube and the vacuum tube.

[0011] In the above-mentioned USB flash drive chip grabbing mechanism, the tube portion and the vacuum tube are detachably connected via threads.

[0012] In the above-mentioned U disk chip grabbing mechanism, an annular mounting groove is provided on the outer wall of the tube, an O-ring is provided in the mounting groove, and the outer peripheral surface of the O-ring is against the inner wall of the vacuum tube, so that a reliable seal is formed between the tube and the vacuum tube, and the working stability is good.

[0013] As another solution, in the above-mentioned USB flash drive chip grabbing mechanism, the outer wall of the tube portion matches the inner wall of the vacuum tube, and the tube portion and the vacuum tube are tightly fitted and fixedly connected.

[0014] In the above-mentioned USB flash drive chip grabbing mechanism, the transmission structure includes a small gear and a large gear respectively fixed on the motor main shaft and the cylinder, and the small gear and the large gear are meshed.

[0015] As another solution, in the above-mentioned USB flash drive chip grabbing mechanism, the transmission structure includes a driving wheel and a driven wheel respectively fixed on the motor main shaft and the cylinder, and the driving wheel and the driven wheel are connected by a synchronous belt.

[0016] In the above-mentioned U disk chip grabbing mechanism, a tubular protruding connecting portion is provided on the outer wall of the cylinder, the connecting portion is connected to the air supply cavity, one end of the connecting tube is sleeved outside the connecting portion, and the connecting tube and the connecting portion are sealed and fixedly connected.

[0017] In the above-mentioned USB flash drive chip grabbing mechanism, the bottom wall of the body presses against the top wall of the vacuum tube, playing a limiting role, so that the vacuum tube can be installed in place at one time.

[0018] Compared with the existing technology, this USB flash drive chip grabbing mechanism has the following advantages:

[0019] 1. The motor drives the cover to rotate through the cylinder, so that the injection holes rotate accordingly to fill the gap between two adjacent injection holes, forming a circle of gas in the circumferential direction, effectively increasing the contact area between the gas and the chip, making it more difficult for stains to remain on the chip, and having a good anti-fouling effect.

[0020] 2. The connecting pipe is used to connect the annular cavity and the air supply cavity, and is also fixed to the cover body and the cylinder body through both ends, thereby enhancing the stability and strength of the connection between the cover body and the cylinder body. That is, in this application, the connecting pipe has a dual-purpose effect, which simplifies the structure and facilitates assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the USB flash drive chip grabbing mechanism.

[0022] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0023] In the figure, 1. vacuum suction cup; 1a. disc body; 1b. vacuum tube; 2. cover body; 2a. annular cavity; 2b. injection hole; 3. cylinder body; 3a. connecting part; 4. exhaust pipe; 4a. main body; 4b. sealing ring; 4c. air supply channel; 4d. pipe part; 5. bearing; 6. air supply cavity; 7. connecting pipe; 8. motor; 9. O-ring; 10. small gear; 11. large gear. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0025] Example 1

[0026] like Figure 1 As shown, the USB flash drive chip grabbing mechanism includes a vacuum suction cup 1, a cover 2, a cylinder 3 and an exhaust pipe 4.

[0027] Specifically,

[0028] The vacuum suction cup 1 includes a disc body 1a and a vacuum tube 1b, wherein a concave cavity is provided at the bottom of the disc body 1a, the vacuum tube 1b is vertically arranged, the lower end of the vacuum tube 1b is fixedly connected to the disc body 1a, and the inner cavity of the vacuum tube 1b is connected to the concave cavity.

[0029] The lid 2 fits over the upper end of the disc 1a, and a through-hole is provided at the top of the lid 2 for the passage of the vacuum tube 1b. A closed annular cavity 2a is defined within the lid 2's wall, coaxial with the lid 2. A circle of injection holes 2b is formed through the cavity 2a, oriented obliquely upward. In this embodiment, the inner wall of the lid 2 and the outer wall of the disc 1a preferably form matching circular surfaces to enhance the rotational stability of the lid 2.

[0030] like Figure 1 As shown, the barrel 3 is sleeved over the vacuum tube 1b and rotatably connected to the vacuum tube 1b via bearings 5. Preferably, there are two bearings 5, distributed axially along the barrel 3. The inner and outer rings of the bearings 5 ​​are respectively secured to the vacuum tube 1b and the barrel 3 via an interference fit. The lower end of the barrel 3 is secured to the cover 2, preferably by welding.

[0031] An exhaust pipe 4 is inserted into the upper end of the barrel 3. The lower end of the exhaust pipe 4 is fixedly connected to and communicates with the vacuum pump 1b, and the upper end of the exhaust pipe 4 extends out of the barrel 3. A closed annular air supply chamber 6 is formed between the exhaust pipe 4 and the barrel 3, and the air supply chamber 6 is coaxial with the barrel 3. An air supply channel 4c with an inlet and an outlet is provided within the wall of the exhaust pipe 4. The inlet is located on the outer wall of the upper end of the exhaust pipe 4, and the outlet is connected to the air supply chamber 6. A connecting pipe 7 is fixed between the cover 2 and the barrel 3, and the two ends of the connecting pipe 7 respectively connect the air supply chamber 6 and the annular chamber 2a. A motor 8 is fixed to the outside of the upper end of the exhaust pipe 4, and the motor 8 drives the barrel 3 to rotate through a transmission structure.

[0032] In this embodiment,

[0033] Preferably, the exhaust pipe 4 is L-shaped;

[0034] like Figure 1 and Figure 2As shown, the air supply chamber 6 is formed as follows: the exhaust pipe 4 includes two sealing rings 4b and a tubular body 4a, with an air supply channel 4c disposed on the body 4a. An annular groove is defined on the outer wall of the body 4a, coaxially disposed with the body 4a. The sealing ring 4b is sleeved and secured to the body 4a, with the annular groove positioned between the two sealing rings 4b. The annular groove, the two sealing rings 4b, and the inner wall of the cylinder 3 together form the air supply chamber 6. The body 4a is preferably L-shaped. Two annular positioning grooves are defined on the outer wall of the body 4a for receiving the sealing rings 4b. There are two positioning grooves, one for each sealing ring 4b.

[0035] The connection between the exhaust pipe 4 and the vacuum tube 1b is as follows: a tube portion 4d is integrally formed on the bottom wall of the body 4a. The inner cavities of the tube portion 4d and the body 4a are interconnected and coaxial. Tube portion 4d is inserted into the vacuum tube 1b and sealed and fixedly connected to the vacuum tube 1b, facilitating the connection between the exhaust pipe 4 and the vacuum tube 1b. Furthermore, the bottom wall of the body 4a presses against the top wall of the vacuum tube 1b, acting as a stop, ensuring that the exhaust pipe 4 is installed in place.

[0036] Preferably, the tube portion 4d and the vacuum tube 1b are detachably connected by threads. Further, an annular mounting groove is provided on the outer wall of the tube portion 4d, an O-ring 9 is provided in the mounting groove, and the outer peripheral surface of the O-ring 9 is against the inner wall of the vacuum tube 1b, so that a reliable seal is formed between the tube portion 4d and the vacuum tube 1b, and the working stability is better.

[0037] The motor 8 is fixedly connected to the exhaust pipe 4 through a base (not shown); the transmission structure includes a small gear 10 and a large gear 11 fixed on the main shaft of the motor 8 and the cylinder 3 respectively, and the small gear 10 and the large gear 11 are meshed.

[0038] The connecting tube 7 is installed as follows: the outer wall of the cylinder 3 has a tubular protruding connecting portion 3a. The connecting portion 3a and the cylinder 3 are integrally formed and communicate with the air supply chamber 6. One end of the connecting tube 7 is inserted outside the connecting portion 3a, and the connecting tube 7 and the connecting portion 3a are sealed and fixedly connected. The cover 2 is provided with a socket that communicates with the annular chamber 2a. The shape and size of the socket match the other end of the connecting tube 7, and the connecting tube 7 is inserted into the socket. In this embodiment, the connecting tube 7 is preferably L-shaped and is fixedly connected to the connecting portion 3a and the cover 2 respectively by welding.

[0039] During installation, the exhaust pipe 4 is connected to the negative pressure device and is driven by the driving device to move up and down, and the entrance of the air supply channel 4c is connected to the air supply device; during use, the negative pressure device is running, and the exhaust pipe 4 and the vacuum tube 1b cooperate to form a negative pressure in the disk body 1a to absorb the U disk chip; the air supply device sends air into the air supply channel 4c, and the gas enters the annular cavity 2a through the air supply cavity 6 and the connecting pipe 7, and is ejected through the injection hole 2b; the motor 8 drives the cover body 2 to rotate through the cylinder 3, so that the injection hole 2b follows the rotation to fill the gap between the two adjacent injection holes 2b, so as to form a circle of gas in the circumferential direction, effectively enhancing the contact area between the gas and the chip, increasing the difficulty of stains remaining on the chip, and having a good anti-fouling effect.

[0040] Example 2

[0041] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that the outer wall of the tube portion 4d matches the inner wall of the vacuum tube 1b, and the tube portion 4d and the vacuum tube 1b are tightly fitted and fixedly connected.

[0042] Example 3

[0043] The structure and principle of the third embodiment are basically the same as those of the first embodiment, except that the transmission structure includes a driving wheel and a driven wheel respectively fixed on the main shaft of the motor 8 and the cylinder 3, and the driving wheel and the driven wheel are connected by a synchronous belt.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A U disk chip grabbing mechanism, comprising a vacuum suction cup (1) having a disc body (1a) and a vacuum tube (1b), wherein the disc body (1a) is covered with a cover body (2) having an annular cavity (2a), and a circle of injection holes (2b) is provided on the wall of the annular cavity (2a), characterized in that: A cylinder (3) is provided on the outer surface of the vacuum tube (1b) and is rotatable through a bearing (5), and the lower end of the cylinder (3) is fixedly connected to the cover (2); an air extraction pipe (4) is inserted into the upper end of the cylinder (3), and the lower end of the air extraction pipe (4) is fixedly connected to and communicates with the vacuum tube (1b), and the upper end of the air extraction pipe (4) extends out of the cylinder (3); a closed annular air supply cavity (6) is formed between the air extraction pipe (4) and the cylinder (3), and the air supply cavity (6) is coaxial with the cylinder (3); an air supply channel (4c) having an inlet and an outlet is provided inside the wall of the air extraction pipe (4), the inlet is located on the outer wall of the upper end of the air extraction pipe (4), and the outlet is connected to the air supply cavity (6); a connecting pipe (7) is fixed between the cover (2) and the cylinder (3), and the two ends of the connecting pipe (7) are respectively connected to the air supply cavity (6) and the annular cavity. (2a); a motor (8) is fixed to the outside of the upper end of the air extraction pipe (4), and the motor (8) drives the cylinder (3) to rotate through the transmission structure; the air extraction pipe (4) includes two sealing rings (4b) and a tubular body (4a), and the air supply channel (4c) is arranged on the body (4a); an annular groove is opened on the outer wall of the body (4a), the sealing ring (4b) is sleeved and fixed on the body (4a), the annular groove is located between the two sealing rings (4b), and the annular groove, the two sealing rings (4b) and the inner wall of the cylinder (3) form the air supply cavity (6); a tube portion (4d) is integrally formed on the bottom wall of the body (4a), the tube portion (4d) is inserted into the vacuum tube (1b), and the tube portion (4d) and the vacuum tube (1b) are sealed and fixedly connected.

2. The USB disk chip grabbing mechanism according to claim 1, characterized in that: The pipe portion (4d) and the vacuum tube (1b) are detachably connected via threads.

3. The USB chip grabbing mechanism according to claim 2, characterized in that: An annular mounting groove is provided on the outer wall of the tube portion (4d), an O-ring (9) is provided in the mounting groove, and the outer peripheral surface of the O-ring (9) abuts against the inner wall of the vacuum tube (1b).

4. The USB disk chip grabbing mechanism according to claim 2, characterized in that: The outer wall of the tube portion (4d) matches the inner wall of the vacuum tube (1b), and the tube portion (4d) and the vacuum tube (1b) are tightly matched and fixedly connected.

5. The USB disk chip grabbing mechanism according to claim 1, characterized in that: The transmission structure comprises a small gear (10) and a large gear (11) respectively fixed on the main shaft of the motor (8) and the barrel (3), and the small gear (10) and the large gear (11) are meshed.

6. The USB disk chip grabbing mechanism according to claim 1, characterized in that: The transmission structure includes a driving wheel and a driven wheel respectively fixed on the main shaft of the motor (8) and the barrel (3), and the driving wheel and the driven wheel are connected by a synchronous belt.

7. The USB disk chip grabbing mechanism according to claim 1, characterized in that: The outer wall of the cylinder (3) is provided with a tubular protruding connecting portion (3a), the connecting portion (3a) is connected to the air supply cavity (6), one end of the connecting pipe (7) is sleeved outside the connecting portion (3a), and the connecting pipe (7) and the connecting portion (3a) are sealed and fixedly connected.

8. The USB chip grabbing mechanism according to claim 1, characterized in that: The bottom wall of the body (4a) is pressed against the top wall of the vacuum tube (1b).

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