Grinding and polishing equipment for inner surface of electronic gas cylinder and operation process of grinding and polishing equipment

Abstract

The invention relates to the technical field of grinding and polishing, and particularly discloses electronic gas cylinder inner surface grinding and polishing equipment and an operation technology thereof.The electronic gas cylinder inner surface grinding and polishing equipment comprises a clamping block and a grinding device, the clamping block is used for wrapping a port of a gas cylinder, and the grinding device comprises a connecting shaft, an air bag and a grinding groove; and one end of the connecting shaft is arranged in the clamping block, an air bag is installed at the other end of the connecting shaft, the air bag is used for abutting against the inner wall of the gas cylinder after being expanded, and the polishing groove is formed in the outer surface of the connecting shaft. The air bag is expanded through liquid, the expanded air bag is attached to the interior of the air cylinder, the expanded air bag can abut against the arc position in the air cylinder and the opening of the air cylinder, the grinding material is arranged on the outer surface of the air bag, the air bag is driven to rotate through the connecting shaft, and the air bag rubs the interior of the air cylinder; in this way, the expanded air bag can completely polish the interior of the gas cylinder, so that the polishing effect is improved, and integral polishing is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and polishing, and specifically relates to an inner surface grinding and polishing device for an electronic gas cylinder and its operating process. Background Technique

[0002] With the rapid development of social economy, the internal polishing process of electronic gas cylinders is the core technology to ensure the storage safety of high-purity gases. Its core value lies in eliminating surface micro-defects through mirror-level treatment with Ra ≤ 0.3μm, thereby avoiding three major risks: one is gas pollution (metal ion precipitation, particulate adsorption), the second is local corrosion (pitting corrosion, intergranular corrosion), and the third is structural failure (bursting caused by stress concentration). The key process includes double treatment of mechanical grinding and electrochemical polishing, which needs to cover all inner surfaces of the cylinder body, and cooperate with 316L stainless steel material to ensure chemical inertness. This technology is directly related to the purity stability of electronic special gases in semiconductor manufacturing, and at the same time improves the inherent safety level of high-pressure containers by reducing the risk of corrosion and leakage.

[0003] However, in combination with actual work, we found that the existing grinding and polishing equipment cannot achieve fitting grinding at the arc and nozzle parts inside the electronic gas cylinder. And when the diameter of the nozzle is small, the grinding and polishing equipment cannot enter the inside of the electronic gas cylinder from the nozzle for grinding, and only segmented grinding can be adopted. For example, first grind the cylinder body part of the electronic gas cylinder, then grind the nozzle part, then weld the cylinder body and the nozzle, and then grind the welded part (such as the content disclosed in the patent documents with publication numbers CN221676664U and CN117226633A). This method is relatively complex and cannot achieve the effect of high-precision internal polishing. Once there are burrs inside or the polishing accuracy does not meet the standard during use, it may pollute the gas inside the electronic gas cylinder or cause internal corrosion. Summary of the Invention

[0004] The present invention provides an inner surface grinding and polishing device for an electronic gas cylinder and its operating process, which has the beneficial effects of good grinding effect and adapting to different models of electronic gas cylinders, and solves the problem of poor grinding and polishing effect mentioned in the above background technique.

[0005] The present invention provides the following technical solution: An inner surface grinding and polishing device for an electronic gas cylinder, comprising:

[0006] A clamping block for wrapping the port of the gas cylinder;

[0007] A grinding device, the grinding device includes a connecting shaft, an airbag and a grinding groove;

[0008] One end of the connecting shaft is arranged inside the clamping block, and the other end of the connecting shaft is provided with an airbag, and the airbag is used to abut against the inner wall of the gas cylinder after inflation;

[0009] The grinding groove is arranged on the outer surface of the connecting shaft, and the cross-sectional dimension of the grinding groove matches the inner wall dimension of the gas cylinder;

[0010] A transmission device for transmitting friction particles to the grinding groove. The transmission device includes a storage tank installed inside the airbag. A screw conveyor is rotatably connected inside the storage tank. A second pipe is installed at the upper end of the storage tank, and one end of the second pipe is communicated with one end of the grinding groove.

[0011] As an optional scheme of the inner surface grinding and polishing equipment for the electronic gas cylinder of the present invention, further comprising: a pressurizing device for extruding the connecting shaft;

[0012] The pressurizing device includes a receiving cavity and a piston cavity arranged inside the clamping block, and the receiving cavity is communicated with the piston cavity;

[0013] The port of the gas cylinder is used to be inserted into the inside of the receiving cavity;

[0014] A pressing plate is slidably connected inside the piston cavity, and the pressing plate is used to extrude the airbag inserted into the gas cylinder.

[0015] As an optional scheme of the inner surface grinding and polishing equipment for the electronic gas cylinder of the present invention, further comprising: a limiting bladder installed inside the airbag for supporting on the outer surface of the grinding groove;

[0016] One end of the second pipe is communicated with one end of the limiting bladder;

[0017] One end of the limiting bladder is communicated with the inside of the grinding groove, and the limiting bladder is used to transmit friction particles to the grinding groove.

[0018] As an optional scheme of the inner surface grinding and polishing equipment for the electronic gas cylinder of the present invention, further comprising: a driving device for driving the connecting shaft and the screw conveyor to rotate;

[0019] The driving device includes a motor installed inside the clamping block. One end of the motor is installed with a gear, and one end of the gear is connected to the connecting shaft;

[0020] An internal gear ring and a transmission gear are also rotatably connected inside the clamping block. The transmission gear is arranged between the gear and the internal gear ring. One end of the screw conveyor is installed with a transmission rod, and the transmission rod penetrates through the pressing plate and is installed at one end of the internal gear ring.

[0021] As an optional scheme of the inner surface grinding and polishing equipment for the electronic gas cylinder of the present invention, further comprising: an extension strip is installed at one end of the pressing plate, a second convex block is installed at one end of the extension strip, and a first convex block is installed at one end of the gear. The first convex block is used to abut against the second convex block;

[0022] A return spring is also installed at one end of the extrusion plate, and the extrusion plate is connected to the clamping block via the return spring.

[0023] As an optional solution of the electronic gas cylinder inner surface grinding and polishing device of the present invention, wherein: a digging device is provided inside the block, and the digging device is used to transfer friction particles;

[0024] The first tube and the third tube are respectively arranged inside the block;

[0025] One end of the first tube and one end of the third tube are connected to two ends of the grinding groove respectively;

[0026] The other ends of the first tube and the third tube are respectively connected to the interior of the digging device.

[0027] As an optional solution of the electronic gas cylinder inner surface grinding and polishing device of the present invention, wherein: the digging device includes a first cavity and a second cavity arranged inside the clamping block;

[0028] The other end of the first tube is connected to the interior of the first cavity, an L-shaped bar is slidably connected to the interior of the first cavity, the upper end of the L-shaped bar is connected to the lower end of the second protrusion, one end of the L-shaped bar is rotatably connected to a single rotating plate, and the single rotating plate and the L-shaped bar are connected via a torque spring;

[0029] A flow groove is also provided inside the block, and the single rotating plate is used to move the friction particles into the flow groove;

[0030] The flow trough, the second cavity and the third tube are connected;

[0031] A filter screen is arranged inside the first cavity.

[0032] As an optional solution of the electronic gas cylinder inner surface grinding and polishing device of the present invention, wherein: a water pump is arranged inside the block, and one end of the water pump is connected to the inside of the air bag through a hose;

[0033] The hose delivers the liquid to the airbag, whereby the inflated airbag contacts the inner wall of the cylinder.

[0034] As an optional solution of the electronic gas cylinder inner surface grinding and polishing device of the present invention, it also includes an electric push rod and a bracket;

[0035] One end of the electric push rod is connected to one end of the clamping block, and the electric push rod is used to push one end of the clamping block to wrap the port of the gas cylinder;

[0036] The bracket is used for wrapping the other end of the gas cylinder.

[0037] The present invention also provides an operating process for an inner surface grinding and polishing device of an electronic gas cylinder, including the following steps:

[0038] Insert the gas cylinder into the bracket.

[0039] Push one end of the clamping block against one end of the bracket through an electric push rod, so that the bottle mouth of the gas cylinder is inserted into the inside of the clamping block, thereby limiting the gas cylinder by the clamping block and the bracket.

[0040] Transmit liquid into the airbag through the water pump inside the clamping block, and set abrasive materials on the outer surface of the airbag.

[0041] Fill the grinding groove with particles through the limiting airbag. With the limiting airbag as a support, the grinding particles at the grinding groove will contact the limiting airbag during movement, thereby reducing the escape of particles at the grinding groove.

[0042] Drive the airbag to rotate through the connecting shaft, and the airbag rubs against the inside of the gas cylinder.

[0043] The present invention has the following beneficial effects:

[0044] 1. For the inner surface grinding and polishing device of the electronic gas cylinder and its operating process, through the liquid-expansion airbag, the expanded airbag fits the inside of the gas cylinder, and the expanded airbag will contact the arc and the bottle mouth inside the gas cylinder. By setting abrasive materials on the outer surface of the airbag and driving the airbag to rotate through the connecting shaft, the airbag rubs against the inside of the gas cylinder. In this way, the expanded airbag can completely grind the inside of the gas cylinder, thereby improving the grinding effect, realizing integral grinding, achieving the original intention of the design of this application, and achieving the technical effects expected by the research and development.

[0045] 2. For the inner surface grinding and polishing device of the electronic gas cylinder and its operating process, through the rotating auger, the friction particles in the storage tank are transported to the second pipe, and the friction particles are transported to the grinding groove through the second pipe. The grinding groove is in a "U" shape, and the size of the grinding groove matches the inner wall size of the gas cylinder. In this way, the friction particles at the grinding groove can circle around the inside of the gas cylinder, so that the friction particles can rub all parts inside the electronic gas cylinder.

[0046] 3. For the inner surface grinding and polishing device of the electronic gas cylinder and its operating process, by reciprocally sliding the pressing plate, the pressurization and pressure relief of the airbag are realized, so that the airbag first contacts and rubs inside the gas cylinder, and then the pressure-relieved airbag receives the impurities generated by polishing and rotates, thereby throwing out the impurities through the airbag. In this way, the grinding and polishing effect of the airbag is improved, and the technical effects expected by the research and development are further optimized. Description of the Drawings

[0047] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0048] Figure 2 This is a schematic cross-sectional view of the gas cylinder of the present invention.

[0049] Figure 3 This is a schematic cross-sectional view of the airbag of the present invention.

[0050] Figure 4 This is a schematic structural view of the transmission device of the present invention.

[0051] Figure 5 This is a schematic structural view of the digging device of the present invention.

[0052] In the figure: 1. Gas cylinder; 2. Electric push rod; 3. Clamping block; 4. Bracket; 5. Grinding device; 6. Pressurizing device; 7. Transmission device; 8. Driving device; 9. Digging device; 51. Connecting shaft; 52. Airbag; 53. Grinding groove; 54. Limiting airbag; 61. Storage cavity; 62. Piston cavity; 63. Extrusion plate; 64. Protruding strip; 71. Storage tank; 72. Auger; 73. First pipe; 74. Second pipe; 75. Third pipe; 76. Transmission rod; 81. Motor; 82. Gear; 83. Transmission tooth; 84. Internal gear ring; 85. First convex block; 86. Second convex block; 91. First cavity; 92. Single spiral plate; 93. Torque spring; 94. L-shaped strip; 95. Flow groove; 96. Second cavity. Specific embodiments

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] Embodiment 1

[0055] Please refer to Figure 1-2 , an inner surface grinding and polishing device for an electronic gas cylinder, comprising:

[0056] A clamping block 3, and the clamping block 3 is used to wrap the port of the gas cylinder 1;

[0057] A grinding device 5, and the grinding device 5 includes a connecting shaft 51, an airbag 52 and a grinding groove 53;

[0058] One end of the connecting shaft 51 is arranged inside the clamping block 3, and the other end of the connecting shaft 51 is provided with an airbag 52, and the airbag 52 is used to abut against the inner wall of the gas cylinder 1 after expansion;

[0059] The grinding groove 53 is arranged on the outer surface of the connecting shaft 51, and the cross-sectional size of the grinding groove 53 matches the inner wall size of the gas cylinder 1;

[0060] A transmission device 7 is used to transmit friction particles to the grinding tank 53. The transmission device 7 includes a storage tank 71 installed inside the airbag 52. A screw conveyor 72 is rotatably connected inside the storage tank 71. A second pipe 74 is installed at the upper end of the storage tank 71. One end of the second pipe 74 is communicated with one end of the grinding tank 53;

[0061] A water pump is arranged inside the clamping block 3. One end of the water pump is communicated with the inside of the airbag 52 through a hose;

[0062] The hose transmits liquid to the airbag 52, so as to contact the inner wall of the gas cylinder 1 through the inflated airbag 52;

[0063] It also includes an electric push rod 2 and a bracket 4;

[0064] One end of the electric push rod 2 is connected to one end of the clamping block 3. The electric push rod 2 is used to push one end of the clamping block 3 to wrap the port of the gas cylinder 1;

[0065] The bracket 4 is used to wrap the other end of the gas cylinder 1.

[0066] At the arc and the nozzle of the electronic gas cylinder, it is impossible to achieve fitting and grinding with the existing grinding and polishing equipment. And when the diameter of the nozzle is small, the grinding and polishing equipment cannot enter the inside of the electronic gas cylinder from the nozzle for grinding. Only segmented grinding can be adopted. For example, first grind the body part of the electronic gas cylinder, then grind the nozzle part. Subsequently, the body and the nozzle are welded, and then the welded part is ground. This method is relatively complex and cannot achieve the effect of high-precision internal polishing. Once there are burrs inside or the polishing accuracy does not meet the standard during use, it may pollute the gas inside the electronic gas cylinder or cause internal corrosion;

[0067] According to Figure 1 , insert the gas cylinder 1 into the bracket 4. Then, push one end of the clamping block 3 to contact one end of the bracket 4 through the electric push rod 2, so that the mouth of the gas cylinder 1 is inserted into the inside of the clamping block 3. In this way, the clamping block 3 and the bracket 4 limit the gas cylinder 1, and the clamping block 3 drives the connecting shaft 51 and the airbag 52 to insert into the inside of the gas cylinder 1. Then, transmit liquid to the inside of the airbag 52 through the water pump inside the clamping block 3. The airbag 52 is inflated by the liquid, so that the inflated airbag 52 fits the inside of the gas cylinder 1, and the inflated airbag 52 will contact the arc inside the gas cylinder 1 and the mouth of the gas cylinder 1. By setting grinding materials on the outer surface of the airbag 52 and driving the airbag 52 to rotate through the connecting shaft 51, the airbag 52 rubs the inside of the gas cylinder 1. In this way, the inflated airbag 52 can completely grind the inside of the gas cylinder 1, thereby improving the grinding effect and realizing integral grinding;

[0068] The deflated airbag 52 can be inserted into the inside of gas cylinders 1 of any size;

[0069] Further, after the airbag 52 expands and abuts against the inner wall of the gas cylinder 1, there is a grinding groove 53 between the inside of the gas cylinder 1 and the airbag 52. By rotating the auger 72, the friction particles inside the storage tank 71 are transmitted to the second pipe 74 by the auger 72, and the friction particles are transmitted to the grinding groove 53 through the second pipe 74. The grinding groove 53 is in a "U" shape, and the size of the grinding groove 53 matches the size of the inner wall of the gas cylinder 1, so that the friction particles at the grinding groove 53 circle around the inside of the gas cylinder 1, so that the friction particles can friction all positions inside the electronic gas cylinder;

[0070] And continuously convey particles to one end of the grinding groove 53, so that the friction particles will be discharged from the other end of the grinding groove 53, thus reducing the wear of the friction particles. Subsequently, the continuously flowing friction particles can drive the impurities inside the electronic gas cylinder to be transmitted away from the inside of the gas cylinder 1 together with the friction particles, so that the continuously updated friction particles can always maintain a good friction effect

[0071] Embodiment 2

[0072] This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 1-3 , in this embodiment, a pressurizing device 6 is further included, and the pressurizing device 6 is used to squeeze the connecting shaft 51;

[0073] The pressurizing device 6 includes a receiving cavity 61 and a piston cavity 62 provided inside the chuck 3, and the receiving cavity 61 and the piston cavity 62 are in communication with each other;

[0074] The port of the gas cylinder 1 is used to be inserted into the inside of the receiving cavity 61;

[0075] A squeezing plate 63 is slidably connected inside the piston cavity 62, and the squeezing plate 63 is used to squeeze the airbag 52 inserted into the inside of the gas cylinder 1.

[0076] Further, since the airbag 52 has elasticity, the airbag 52 has the possibility of expanding outward from the bottle mouth, so that the airbag 52 cannot completely fit inside the gas cylinder 1. Therefore, one end of the chuck 3 is used to wrap the bottle mouth, and then a squeezing plate 63 is slidably connected inside the chuck 3. According to Figure 2 , after the airbag 52 expands, by sliding the squeezing plate 63 to the left, the squeezing plate 63 is used to abut and squeeze one end of the airbag 52, so as to compress the airbag 52, thereby reducing the expansion space of the airbag 52 and improving the rigidity of the airbag 52, so that the airbag 52 can completely abut against the inner wall of the gas cylinder 1, so as to improve the grinding and polishing of the expanded airbag 52 against the inside of the gas cylinder 1;

[0077] Furthermore, when the connecting shaft 51 drives the airbag 52 to rotate, due to the small gap between the gas cylinder 1 and the airbag 52, the impurities generated by the friction between the airbag 52 and the gas cylinder 1 will scatter on the outer surface of the airbag 52. Then, when the airbag 52 rotates and rubs, the impurities will affect the polishing effect inside the gas cylinder 1. Therefore, by reciprocally sliding the extrusion plate 63, the pressurization and depressurization of the airbag 52 are realized, so that the airbag 52 first contacts and rubs inside the gas cylinder 1, and then the depressurized airbag 52 receives the impurities generated by polishing and rotates, so as to throw out the impurities through the airbag 52, thus improving the grinding and polishing effect of the airbag 52;

[0078] It should be particularly noted that the expansion cross-section of the airbag 52 is as Figure 3 shown. There are gaps between both sides of the expanded airbag 52 and the inner wall of the gas cylinder 1, so that the device is thrown to the gap by the airbag 52.

[0079] Embodiment 3

[0080] This embodiment is an improvement based on Embodiment 2. Specifically, please refer to Figure 1-3 , in this embodiment, a limiting bladder 54 is installed inside the airbag 52, and the limiting bladder 54 is used to support on the outer surface of the grinding groove 53;

[0081] One end of the second pipe 74 is connected and communicated with one end of the limiting bladder 54;

[0082] One end of the limiting bladder 54 is connected and communicated with the inside of the grinding groove 53, and the limiting bladder 54 is used to transmit friction particles to the grinding groove 53.

[0083] Since the airbag 52 has elasticity, the friction particles at the grinding groove 53 may squeeze the airbag 52, thus deforming the grinding groove 53 and causing the particles inside the grinding groove 53 to escape. This will result in the friction particles being too loose to form a grinding effect on the inside of the gas cylinder 1. Therefore, a limiting bladder 54 is installed inside the airbag 52. As Figure 3 shown, first, abrasive particles are filled into the limiting bladder 54 through the second pipe 74, and then the particles are filled into the grinding groove 53 through the limiting bladder 54. In this way, with the support of the limiting bladder 54, the abrasive particles at the grinding groove 53 will contact the limiting bladder 54 during the movement process, thereby reducing the escape of particles at the grinding groove 53, so that the friction particles at the grinding groove 53 can better grind and polish the inner wall of the gas cylinder 1;

[0084] It should be particularly noted that there is liquid inside the friction particles, and the friction particles have fluidity in combination with the liquid.

[0085] Embodiment 4

[0086] This embodiment is an improvement based on Embodiment 6. Specifically, please refer to Figure 1-4, in this embodiment, it further includes a driving device 8, and the driving device 8 is used to drive the connecting shaft 51 and the auger 72 to rotate;

[0087] The driving device 8 includes a motor 81 installed inside the clamping block 3, one end of the motor 81 is equipped with a gear 82, and one end of the gear 82 is connected to the connecting shaft 51;

[0088] An internal gear ring 84 and a transmission gear 83 are also rotatably connected inside the clamping block 3. The transmission gear 83 is arranged between the gear 82 and the internal gear ring 84. One end of the auger 72 is equipped with a transmission rod 76, and the transmission rod 76 penetrates through the extrusion plate 63 and is installed at one end of the internal gear ring 84;

[0089] One end of the extrusion plate 63 is equipped with an extension strip 64, one end of the extension strip 64 is equipped with a second convex block 86, and one end of the gear 82 is equipped with a first convex block 85, and the first convex block 85 is used to abut against the second convex block 86;

[0090] One end of the extrusion plate 63 is also equipped with a return spring, and the extrusion plate 63 and the clamping block 3 are connected by the return spring.

[0091] The connecting shaft 51 includes a first column and a second column;

[0092] Drive: According to Figure 4 , the first column is driven to rotate by the motor 81, the first column drives the storage tank 71 to rotate, the storage tank 71 drives the second column to rotate, and the second column drives the airbag 52 to rotate, so as to make the airbag 52 rub the inner wall of the gas cylinder 1;

[0093] When the motor 81 drives the first column to rotate, the first column will also drive the gear 82 to rotate. The gear 82 drives the first convex block 85 to rotate. By the first convex block 85 abutting against the second convex block 86, the second convex block 86 is squeezed to slide to the left by the first convex block 85. The second convex block 86 drives the extrusion plate 63 to slide to the left, so that the extrusion plate 63 slides to the left to squeeze the airbag 52. When the first convex block 85 no longer abuts against the second convex block 86, the extrusion plate 63 is pulled back to its original position by the return spring, so as to realize the reciprocating sliding of the extrusion plate 63;

[0094] When the gear 82 rotates, the gear 82 meshes to drive the transmission gear 83 to rotate, the transmission gear 83 meshes to drive the internal gear ring 84 to rotate, the internal gear ring 84 drives the transmission rod 76 to rotate, and the transmission rod 76 drives the auger 72 to rotate, so as to realize the rotation and transmission of the friction particles by the auger 72.

[0095] Embodiment 5

[0096] This embodiment is an improvement made on the basis of Embodiment 4. Specifically, please refer to Figure 1-5 , in this embodiment, a digging device 9 is arranged inside the clamping block 3, and the digging device 9 is used to transmit friction particles;

[0097] Inside the clamping block 3, a first pipe 73 and a third pipe 75 are respectively arranged;

[0098] One end of the first pipe 73 and the third pipe 75 are respectively connected to both ends of the grinding groove 53;

[0099] The other ends of the first pipe 73 and the third pipe 75 are respectively connected to the inside of the digging device 9;

[0100] The digging device 9 includes a first chamber 91 and a second chamber 96 arranged inside the clamping block 3;

[0101] The other end of the first pipe 73 is connected to the inside of the first chamber 91. Inside the first chamber 91, an L-shaped strip 94 is slidably connected. The upper end of the L-shaped strip 94 is connected to the lower end of the second convex block 86. One end of the L-shaped strip 94 is rotatably connected to a single-rotation plate 92. The single-rotation plate 92 and the L-shaped strip 94 are connected by a torsion spring 93;

[0102] A flow-through groove 95 is further arranged inside the clamping block 3. The single-rotation plate 92 is used to dial the friction particles to the flow-through groove 95;

[0103] The flow-through groove 95, the second chamber 96 and the third pipe 75 are connected;

[0104] A filter screen is arranged inside the first chamber 91.

[0105] According to Figure 5 As shown, the friction particles are transmitted to the first pipe 73 through the other end of the grinding groove 53, and the friction particles are transmitted to the first chamber 91 through the first pipe 73. When the second convex block 86 slides towards one end, the second convex block 86 will drive the L-shaped strip 94 and the single-rotation plate 92 to slide to the left. By frictional extrusion, the single-rotation plate 92 is rotated to the right, so that the friction particles can cross the single-rotation plate 92. Subsequently, when the second convex block 86 resets, the second convex block 86 drives the L-shaped strip 94 and the single-rotation plate 92 to reset, so that the single-rotation plate 92 dials the friction particles to move to the flow-through groove 95. Since a filter screen is installed inside the first chamber 91, the impurities inside the friction particles can flow out through the filter screen, thereby realizing the cleaning of the friction particles and maintaining the grinding and polishing effect of the friction particles. When the friction particles enter the flow-through groove 95, the friction particles are transmitted to the second chamber 96 through the flow-through groove 95, the friction particles are transmitted to the third pipe 75 through the second chamber 96, and the friction particles are transmitted to the auger 72 again through the third pipe 75, thus realizing the recycling of the friction particles;

[0106] It should be particularly noted that the filter screen is located on the lower end surface of the single-rotation plate 92.

[0107] Embodiment 6

[0108] The present invention also provides an operating process for an inner surface grinding and polishing device of an electronic gas cylinder, including the following steps:

[0109] Insert the gas cylinder at the bracket;

[0110] Push one end of the clamping block against one end of the bracket through an electric push rod, so that the mouth of the gas cylinder is inserted into the inside of the clamping block, thereby limiting the gas cylinder by the clamping block and the bracket;

[0111] Transmit liquid into the airbag through the water pump inside the clamping block, and set abrasive materials on the outer surface of the airbag;

[0112] Fill particles into the grinding groove through the limiting bladder. With the limiting bladder as a support, the abrasive particles at the grinding groove will contact the limiting bladder during movement, thereby reducing the escape of particles at the grinding groove;

[0113] Drive the airbag to rotate through the connecting shaft, and the airbag rubs the inside of the gas cylinder.

[0114] Furthermore, as is well-known to those skilled in the art, if necessary, other control mechanisms, drive mechanisms, connection structures, power sources, and / or auxiliary structures may be additionally provided in the above embodiments for necessary operations and controls, without departing from the inventive concept of the present invention and without structural interference between structures. It shall be implemented by those skilled in the art. The division of each component or structure is only a logical function division, and there may be other division methods in actual implementation. For example, multiple structures or components may be combined or integrated into another system / module, or some features may be ignored / not executed.

[0115] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0116] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. An inner surface grinding and polishing device for an electronic gas cylinder, characterized in that, Including: A clamping block (3), which is used to wrap the port of the gas cylinder (1); A grinding device (5), which includes a connecting shaft (51), an airbag (52) and a grinding groove (53); One end of the connecting shaft (51) is arranged inside the clamping block (3), and the other end of the connecting shaft (51) is installed with an airbag (52), and the airbag (52) is used to abut against the inner wall of the gas cylinder (1) after inflation; The grinding groove (53) is arranged on the outer surface of the connecting shaft (51), and the cross-sectional size of the grinding groove (53) matches the inner wall size of the gas cylinder (1); A transmission device (7), which is used to transmit friction particles to the grinding groove (53). The transmission device (7) includes a storage tank (71) installed inside the airbag (52), a auger (72) is rotatably connected inside the storage tank (71), the upper end of the storage tank (71) is installed with a second pipe (74), and one end of the second pipe (74) is communicated with one end of the grinding groove (53).

2. The internal surface grinding and polishing equipment for electronic gas cylinders according to claim 1, wherein: It also includes a pressurizing device (6), which is used to squeeze the connecting shaft (51); The pressurizing device (6) includes a receiving cavity (61) and a piston cavity (62) arranged inside the clamping block (3), and the receiving cavity (61) is communicated with the piston cavity (62); The port of the gas cylinder (1) is used to be inserted into the inside of the receiving cavity (61); An extrusion plate (63) is slidably connected inside the piston cavity (62), and the extrusion plate (63) is used to squeeze the airbag (52) inserted into the gas cylinder (1).

3. The electronic gas cylinder inner surface grinding and polishing equipment according to claim 1, wherein: A limiting airbag (54) is installed inside the airbag (52), and the limiting airbag (54) is used to support the outer surface of the grinding groove (53); One end of the second pipe (74) is communicated with one end of the limiting airbag (54); One end of the limiting airbag (54) is communicated with the inside of the grinding groove (53), and the limiting airbag (54) is used to transmit friction particles to the grinding groove (53).

4. The internal surface grinding and polishing equipment for an electronic gas cylinder according to claim 1, characterized in that: It also includes a driving device (8), which is used to drive the connecting shaft (51) and the auger (72) to rotate; The driving device (8) includes a motor (81) installed inside the clamping block (3), one end of the motor (81) is installed with a gear (82), and one end of the gear (82) is connected to the connecting shaft (51); An internal gear ring (84) and a transmission gear (83) are also rotatably connected inside the clamping block (3). The transmission gear (83) is arranged between the gear (82) and the internal gear ring (84). One end of the auger (72) is installed with a transmission rod (76), and the transmission rod (76) penetrates through the extrusion plate (63) and is installed at one end of the internal gear ring (84).

5. The electronic gas cylinder inner surface grinding and polishing equipment according to claim 4, characterized in that: One end of the extrusion plate (63) is installed with a protruding strip (64), one end of the protruding strip (64) is installed with a second convex block (86), and one end of the gear (82) is installed with a first convex block (85), and the first convex block (85) is used to abut against the second convex block (86); A return spring is also installed at one end of the extrusion plate (63), and the extrusion plate (63) and the clamping block (3) are connected via the return spring.

6. The electronic gas cylinder inner surface grinding and polishing equipment according to claim 3 or 4, characterized in that: A digging device (9) is provided inside the block (3), and the digging device (9) is used to transfer friction particles; The block (3) is also provided with a first tube (73) and a third tube (75) respectively; One end of the first tube (73) and one end of the third tube (75) are respectively connected to two ends of the grinding groove (53); The other ends of the first tube (73) and the third tube (75) are respectively connected to the inside of the digging device (9).

7. The internal surface grinding and polishing equipment for an electronic gas cylinder according to claim 6, characterized in that: The digging device (9) comprises a first cavity (91) and a second cavity (96) arranged inside the block (3); The other end of the first tube (73) is connected to the interior of the first cavity (91); an L-shaped bar (94) is slidably connected to the interior of the first cavity (91); the upper end of the L-shaped bar (94) is connected to the lower end of the second protrusion (86); one end of the L-shaped bar (94) is rotatably connected to a single rotating plate (92); the single rotating plate (92) and the L-shaped bar (94) are connected via a torque spring (93); The block (3) is also provided with a flow groove (95) inside, and the single rotating plate (92) is used to move the friction particles into the flow groove (95); The flow trough (95), the second cavity (96) and the third tube (75) are connected; A filter screen is arranged inside the first chamber (91).

8. The internal surface grinding and polishing equipment for an electronic gas cylinder according to claim 1, characterized in that: A water pump is disposed inside the block (3), and one end of the water pump is connected to the interior of the air bag (52) through a hose; The hose transmits the liquid to the airbag (52), thereby causing the inflated airbag (52) to contact the inner wall of the gas cylinder (1).

9. The internal surface grinding and polishing equipment for electronic gas cylinders according to claim 1, characterized in that: It also includes an electric push rod (2) and a bracket (4); One end of the electric push rod (2) is connected to one end of the clamping block (3), and the electric push rod (2) is used to push one end of the clamping block (3) to wrap around the port of the gas cylinder (1); The bracket (4) is used to wrap the other end of the gas cylinder (1).

10. An operating process of the inner surface grinding and polishing equipment for an electronic gas cylinder according to any one of claims 1-9, characterized in that, The operation process comprises the following steps: Insert the gas cylinder (1) into the bracket (4); The electric push rod (2) is used to push one end of the clamping block (3) to contact one end of the bracket (4), so that the mouth of the gas cylinder (1) is inserted into the inside of the clamping block (3), so that the clamping block (3) and the bracket (4) limit the gas cylinder (1); The liquid is transferred to the inside of the airbag (52) by a water pump inside the block (3), and a polishing material is arranged on the outer surface of the airbag (52); Filling particles into the grinding groove (53) through the limiting capsule (54), thereby using the limiting capsule (54) as support, so that the grinding particles at the grinding groove (53) will abut against the limiting capsule (54) during the movement, thereby reducing the escape of particles at the grinding groove (53); The air bag (52) is driven to rotate by the connecting shaft (51), and the air bag (52) rubs against the inside of the gas cylinder (1).

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