A gun cleaning device based on shot peening principle

Abstract

The present invention discloses a gun cleaning device based on the shot peening principle, comprising an equipment bottom plate, a support column fixed to the top of the equipment bottom plate, and a mounting plate fixed to the top of the support column. The gun cleaning device also comprises a shot peening cleaning mechanism for cleaning the welding gun nozzle, and the shot peening cleaning mechanism comprises a shot peening gun body, a jet delivery pump and a high-pressure air pump. The present invention performs high-pressure shot peening on the welding gun nozzle through the shot peening cleaning mechanism, and uses high-speed shot peening particles ejected from the injection port of the shot peening gun body to efficiently clean the welding slag in the nozzle, thereby preventing the welding slag from accumulating on the nozzle surface and affecting the welding quality. The mounting structure of the shot peening gun body and the rail plate, in conjunction with the elastic supporting effect of the supporting spring, buffers the contact between the welding gun nozzle and the shot peening gun body, avoids damage to the device, shakes off the cleaning impurities and shot peening attached to the surface of the shot peening gun body, ensures the cleanliness and shot peening efficiency of the shot peening gun body, improves the wire cutting mechanism, realizes closed-loop detection feedback, and extends the service life of the device.

Description

Technical Field

[0001] The invention relates to the field of welding gun cleaners, and in particular to a gun cleaning device based on the shot peening principle. Background Art

[0002] The gun cleaning device is mainly used in the field of industrial automation to clean the inner and outer surfaces of the MIG / MAG welding gun nozzle to improve welding quality and prevent welding slag accumulation, which may cause shielding gas to be blocked or welding wire to be stuck, thus affecting welding quality. In order to effectively solve the problem of welding spatter accumulating on the nozzle and affecting welding quality, the traditional welding gun cleaner adopts the scraper-type gun cleaning principle. When the welding gun nozzle enters the predetermined gun cleaning position, the gun cleaner scraper starts to rotate at high speed, and the welding slag on the nozzle surface is cleaned through the physical contact between the blade and the inner surface of the nozzle. For example, the invention patent application with application number 202010750147.8 and titled "A Multifunctional Gun Cleaner" discloses a bracket, a shell provided on the bracket, a flexible scraper provided on the shell that enters the welding gun through plastic deformation and rotates relative to the welding gun to clean the welding slag in the welding gun, a chip removal gap for discharging the welding slag on the flexible scraper, a steel brush provided on the shell to clean the end face of the welding gun; a wire cutting mechanism for cutting and collecting the welding wire on the welding gun at a fixed length is provided on the shell, a liquid spraying assembly is provided on the side of the shell to prevent the welding slag from splashing when the steel brush cleans the end face of the welding gun, and a slag blowing mechanism is provided on the shell to blow the welding slag scraped off by the flexible scraper away from the shell. The invention has multiple functions such as spraying splashing liquid, recycling waste liquid, cleaning welding slag on the end face of the nozzle, efficient gun cleaning, welding slag purging, welding wire fixed length, precise wire cutting, welding slag and welding wire recycling, which can meet various customer needs; all waste generated by gun cleaning is recycled, which improves the working environment; there is no need to dock signals and program with the robot, and the operation is simple and convenient. However, this traditional scraper-type gun cleaner has the following disadvantages:

[0003] Strict requirements on the gun cleaning position: Since the scraper needs to rotate at high speed to clean the welding gun nozzle, the center of the welding gun nozzle and the rotation center of the scraper must be highly coincident, otherwise the rotation process will cause the blade to be deformed or damaged or the nozzle to be cut by the scraper. However, in the actual application process, it can only be judged by the naked eye and experience, and it is difficult to achieve the ideal state of complete coincidence of the rotation center;

[0004] High cost of replacing nozzles and scrapers: Since the scraper is in physical contact with the nozzle and cleans the welding slag by rotating at a relatively high speed, this method can easily cause the blade and nozzle to wear out, requiring a high replacement frequency, which increases the cost of equipment spare parts;

[0005] Poor versatility: scraper-type gun cleaners are not suitable for small-diameter nozzles with pointed tips. This type of tapered small-diameter nozzle requires specially customized blades, which are expensive to use and modify, and cannot be used for nozzles of other specifications;

[0006] Complex structure and high maintenance cost: The scraper-type gun cleaner has a complex structure and most of them require circuit and gas control systems. The gun needs to enter the specified position during the gun cleaning process, and the scraper is inserted into the nozzle and rotated at high speed. After reaching the set number of rotations, the scraper will exit the nozzle to complete the gun cleaning process;

[0007] High failure rate: Since spatter has high energy, when spatter firmly adheres to the nozzle surface, it is easy for the scraper to be stuck by the spatter, causing scraper wear and welding gun damage.

[0008] There are also non-scraper-type gun cleaning devices in the prior art, such as the utility model patent with application number 202020393158.0, entitled "A mechanism for cleaning welding guns using high-speed abrasives", which discloses a gun cleaning mechanism, a material screening mechanism, a wire cutting mechanism, an oil spraying mechanism, a control mechanism and a mounting bracket. The device uses compressed air to form a high negative pressure, sprays abrasives from the spray gun at high speed, and cleans the surface of the conductive nozzle, the conductive nozzle seat and the nozzle. It can be thoroughly cleaned to achieve a good effect, thereby ensuring the effectiveness of the welding gun. With the help of labor-saving pliers, cylinders and bionic joint connectors, the device imitates the human body using labor-saving pliers to shear the welding wire of the welding gun. The two blades of the labor-saving pliers are seamlessly connected to avoid wire jamming. Moreover, the labor-saving pliers have high strength, high hardness and long service life. The oil spraying mechanism uses the siphon principle of a high-pressure atomizing nozzle to atomize and spray the anti-splash agent onto the conductive nozzle of the welding gun.

[0009] However, the above scheme adopts shot blasting to clean the welding gun nozzle. The shot blasting gun body of the device is prone to impurities and shot blasting, which affects the efficient cleaning of the welding slag in the nozzle. The impurities in the return material cannot be fully filtered. The impurities contained in the shot blasting have a poor cleaning effect on the nozzle and may also cause gun cleaning failure. In addition, there is a lack of feedback signals during the processes of gun cleaning and wire cutting. During the production process, the wire cutting mechanism is prone to damage but there is no error information, resulting in problems with operation quality defects.

[0010] Therefore, it is necessary to invent a gun cleaning device based on the shot peening principle to solve the above problems. Summary of the invention

[0011] The object of the present invention is to provide a gun cleaning device based on the shot peening principle to solve the above-mentioned deficiencies in the technology.

[0012] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gun cleaning device based on the shot peening principle, comprising an equipment bottom plate, a support column fixed to the top of the equipment bottom plate, and a mounting plate fixed to the top of the support column, the gun cleaning device also includes

[0013] A shot blasting cleaning mechanism for cleaning a welding gun nozzle, wherein the shot blasting cleaning mechanism comprises a shot blasting gun body, a jet delivery pump and a high-pressure air pump, wherein the jet delivery pump and the high-pressure air pump respectively deliver shot blasting materials and high-pressure gas into the shot blasting gun body;

[0014] A screening and recovery mechanism for cleaning shot, and the screening and recovery mechanism comprises a first screening part and a second screening part, and the second screening part is also provided with an oscillation buffer part, a feeding pipe is provided between the shot blasting cleaning mechanism and the screening and recovery mechanism, and a return port is provided on the side of the screening and recovery mechanism, the first screening part and the second screening part cooperate to screen out clean shot, and the shot is transported to the return port and sent back to the shot blasting cleaning mechanism for recycling through a jet delivery pump;

[0015] An anti-splash mechanism for preventing debris from splashing during cleaning, and the anti-splash mechanism includes an anti-splash liquid infiltration portion and a shielding portion, the anti-splash liquid infiltration portion is installed on the top side of the mounting plate, a shot peening port is provided on the top of the shot peening cleaning mechanism, and the shielding portion is installed on the top of the shot peening port;

[0016] Move the welding gun nozzle to the shot blasting cleaning mechanism for cleaning, cooperate with the shielding part to block the splashes, the screening recovery mechanism cooperates with the jet delivery pump to circulate the shot blasting work, and after treatment, use the anti-splash liquid infiltration part to treat the welding gun nozzle.

[0017] As a preferred embodiment of the present invention, the shot blasting cleaning mechanism comprises an upper cone shell and a lower cone shell, and the upper cone shell is buckled on the top of the lower cone shell, the upper cone shell and the lower cone shell are connected on both sides by quick buckles, and a feeding port is opened at the bottom of the lower cone shell;

[0018] The top end of the shot peening gun body is arranged as a shot peening port, the bottom end of the shot peening gun body is arranged as a shot peening injection port, the side of the shot peening gun body is arranged as a pressurized air replenishing port, and the shot peening port, the shot peening injection port and the pressurized air replenishing port are connected, a connecting pipe port is arranged on the lower cone shell, and one end of the connecting pipe port is connected to the shot peening injection port, the input end of the connecting pipe port is connected to a delivery pipe, and the other end of the delivery pipe is connected to a jet delivery pump, and the input end of the jet delivery pump is connected to a return port.

[0019] As a preferred embodiment of the present invention, the shot peening recovery mechanism comprises an upper screening box and a lower screening box respectively located outside the first screening part and the second screening part, and the upper screening box is buckled on the top of the lower screening box, a cover plate is buckled on the outside of the top of the upper screening box, and both sides of the connection between the lower cone shell and the cover plate and the upper cone shell are connected by quick buckles, a channel opening is opened at the axis of the top of the cover plate, and a discharge pipe connects the channel opening and the discharge opening;

[0020] The first screening part includes a pocket plate and a screen frame arranged inside the pocket plate, a ring plate is integrally arranged on the inner bottom of the upper screening box, a plurality of elastic members distributed in a ring array are fixedly installed between the pocket plate and the ring plate, and the pocket plate and the screen frame are fixedly installed by screws, a vibration motor is fixedly connected to the inner wall of the upper screening box, and the output end of the vibration motor is transmission-connected to the pocket plate;

[0021] The second screening part comprises a wedge plate and an inclined leakage plate installed inside the lower screening box. A wedge guide groove is provided at the bottom of the wedge plate, and the wedge guide groove is inclined toward the middle and connected to the return material port.

[0022] The oscillation buffer part includes a plurality of groups of ear plates symmetrically distributed on both sides of the wedge plate, the number of the ear plates in each group is set to two, and a buffer plate is rotatably connected between the two ear plates in each group through a short shaft, and a first torsion spring sleeved on the short shaft provides a supporting force between the buffer plate and the ear plate;

[0023] As a preferred embodiment of the present invention, multiple buffer plates are arranged at an angle, and the inclination direction of the buffer plates is opposite to the inclination direction of the inclined leak plate. The lengths of the multiple buffer plates increase equidistantly from top to bottom. A support rod is connected between two adjacent buffer plates, and the two ends of the support rod are respectively hinged to the middle and outer ends of the buffer plates on both sides.

[0024] As a preferred solution of the present invention, an electric heating blower is provided inside the upper screening box and at the bottom of the first screening part;

[0025] The bottom of the screen frame is provided with a plurality of evenly distributed screen holes, and the inclined leaking plate is provided with a plurality of evenly distributed screen slots, and the screen slots are distributed vertically;

[0026] The diameter of the sieve hole is larger than the diameter of the shot and smaller than the size of the large pieces of detached objects, and is used to screen out the large pieces of detached objects. The width of the sieve gap is larger than the impurity particle ball and smaller than the diameter of the shot, and is used to screen out the impurity particles and leave clean shots.

[0027] As a preferred embodiment of the present invention, the anti-splash liquid infiltration part includes an anti-splash liquid supply bottle, a waste liquid recovery bottle and a transparent ring cover, a sheet rubber baffle ring is provided at the top of the transparent ring cover, and an atomizing nozzle is provided inside the transparent ring cover, and a booster pump is used to pressurize and transport the feed between the atomizing nozzle and the anti-splash liquid supply bottle, a filter cartridge is connected to the output end of the transparent ring cover, and waste liquid is transported between the filter cartridge and the waste liquid recovery bottle by a reflux pump, and the anti-splash liquid is sprayed on the welding gun to prevent the spatter during welding from forming attachments that are difficult to clean in the welding gun;

[0028] The shielding part includes an annular pressing sheet and a sealing member, wherein the sealing member is pressed between the annular pressing sheet and the upper cone shell, and the annular pressing sheet and the upper cone shell are detachably mounted by screws, and the caliber of the sealing member is larger than the caliber of the welding gun nozzle.

[0029] As a preferred embodiment of the present invention, a cross bar is fixedly connected to the inner wall of the lower cone shell, and a rail plate is fixedly connected to the cross bar. The shot peening gun body is slidably connected to the rail plate through a pin shaft, and a support spring is installed on the rail plate. The two ends of the support spring are respectively fixedly connected to the rail plate and the pin shaft.

[0030] As a preferred embodiment of the present invention, the gun cleaning device further comprises a wire cutting mechanism mounted on the mounting plate, and a control box fixed on the mounting plate is provided on one side of the wire cutting mechanism;

[0031] The wire cutting mechanism comprises a stationary knife arm and a beam frame on one side of the stationary knife arm, an electric push rod is arranged at the bottom of the stationary knife arm, and the stationary knife arm, the beam frame and the electric push rod are all fixedly connected to the outer wall of the control box, a movable knife arm is hingedly connected to one end of the beam frame away from the control box, a slot-shaped bayonet is arranged at the bottom end of the movable knife arm, a clamping block is fixedly connected to the output end of the electric push rod, and the clamping block is movably connected to the slot-shaped bayonet;

[0032] Blades are installed on adjacent sides of the tops of the static blade arm and the movable blade arm through screws, and the cutting edges of the two blades match each other. An elastic gasket is arranged between the movable blade arm and the blades.

[0033] As a preferred solution of the present invention, a protective shell is provided on the outer side of the wire cutting mechanism, and a first storage box is slidably connected to the bottom of the protective shell;

[0034] The outer side of the stationary knife arm is fixedly connected with a pile block, and the outer side of the pile block is sleeved with a herringbone feeding plate, and a second torsion spring is provided at the connection between the herringbone feeding plate and the pile block, and a notch is provided on the herringbone feeding plate, and the notch matches the movable knife arm;

[0035] The outer side of the stationary knife arm is rotatably connected with a shaft rod, and the top of one side of the movable knife arm is rotatably connected with a shaft sleeve, and the shaft rod and the shaft sleeve are slidably sleeved, and the outer side of the shaft rod is sleeved with a buffer spring, and the buffer spring is located between the end of the shaft rod and the shaft sleeve.

[0036] As a preferred solution of the present invention, the lower cone shell is mounted on the mounting plate by screws, and the lower screening box is mounted on the equipment bottom plate by screws;

[0037] A through opening is opened on the side of the lower screening box, and a door panel is hinged in the through opening. A second storage box is arranged inside the lower screening box.

[0038] As a preferred solution of the present invention, an outer cover shell is installed on the outer side of the top of the mounting plate by screws, and the top of the outer cover shell is provided with through grooves corresponding to the anti-splash liquid infiltration part, the shielding part and the wire cutting mechanism respectively.

[0039] As a preferred solution of the present invention, a single-chip microcomputer is provided inside the control box, and the input end and output end of the single-chip microcomputer are electrically connected to an A / D converter and a D / A converter respectively;

[0040] A laser sensor is installed in the middle of the top of the protective shell, and the laser sensor is used for one-time wire cutting and closed-loop detection feedback of the wire cutting mechanism. An ultrasonic sensor is installed inside the upper cone shell, and the ultrasonic sensor is used to sense the welding gun nozzle entering the cleaning area of ​​the shot peening cleaning mechanism;

[0041] The laser sensor and the ultrasonic sensor are both electrically connected to the A / D converter;

[0042] The jet delivery pump, high-pressure air pump, vibration motor, electric heating blower, booster pump, reflux pump and electric push rod are all electrically connected to the D / A converter.

[0043] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0044] 1. The welding gun nozzle is subjected to high-pressure shot peening treatment through the shot peening cleaning mechanism. The high-speed shot peening particles ejected from the injection port of the shot peening gun body are used to efficiently clean the welding slag in the nozzle to prevent the welding slag from accumulating on the nozzle surface and thus affecting the welding quality. The installation structure of the shot peening gun body and the rail plate, in conjunction with the elastic support of the support spring, buffers the contact between the welding gun nozzle and the shot peening gun body to avoid damage to the device. It can also shake off the cleaning impurities and shot peening attached to the surface of the shot peening gun body to ensure the cleanliness and shot peening efficiency of the shot peening gun body.

[0045] 2. The cleaned materials are sent to the screening and recovery mechanism through the channel opening, the feeding pipe and the feeding port. The first screening part cooperates with the second screening part to successively screen out impurities larger than the shot and impurities smaller than the shot. The impurities on the shot surface are shaken off by the oscillation buffer part in the middle, and the materials are sent to the upper end of the inclined plate to fully screen out the debris and screen out the clean shot. The shot is rolled to the return port through the inclined plate and the wedge-shaped guide groove, and is sent back to the shot peening cleaning mechanism for recycling through the jet delivery pump, which improves the reuse rate of shot peening particles, reduces costs, realizes the rapid separation of welding slag and shot peening particles, and prevents welding slag from blocking the air pipe and causing gun cleaning failure;

[0046] 3. By improving the wire cutting mechanism, the problem of blade collision or damage caused by excessive force is avoided. An elastic gasket is set to provide a slight elastic buffer when trimming the solder to protect the blade. A herringbone feeding plate is added, and the solder is slid into the first storage box by using the inclined surface. The second torsion spring enables the herringbone feeding plate to move on the pile block, and cooperates with the abutment effect of the notch and the movable knife arm to drive the herringbone feeding plate to move so that it always fits the movable knife arm, preventing the solder from falling to the top of the electric push rod or being pressed between the control box and the movable knife arm after being cut, thereby reducing the impact and damage to the device;

[0047] 4. Through the automatic monitoring system, the shot peening cleaning mechanism and the wire cutting mechanism are used together. The laser sensor uses rays to sense the operation of the wire cutting mechanism. The position of the rays corresponds to the cutting part of the blade. When the wire cutting mechanism cuts, the rays are cut off. At this time, the laser sensor feeds back the detection signal to the single-chip microcomputer through the IO module. After the feedback, the wire cutting mechanism completes one wire cutting and closed-loop detection feedback. At the same time, the electric push rod is controlled to stop and its output shaft is controlled to retract in time to avoid the collision loss of the cutter. The ultrasonic sensor is used to sense the welding gun nozzle entering the cleaning area of ​​the shot peening cleaning mechanism. When the welding gun reaches the specified position, the gun cleaner shot peening gun body starts working, which improves the processing control accuracy and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0049] Figure 1 It is a stereoscopic diagram of the overall structure of the present invention from a first viewing angle;

[0050] Figure 2 It is a stereoscopic diagram of the overall structure of the present invention from a second viewing angle;

[0051] Figure 3 It is a side view of the overall structure of the present invention;

[0052] Figure 4 It is a top view of the overall structure of the present invention;

[0053] Figure 5 A first-view stereoscopic view of the cutaway structure of the shot blasting cleaning mechanism of the present invention;

[0054] Figure 6 A second perspective view of the cutaway structure of the shot blasting cleaning mechanism of the present invention;

[0055] Figure 7 It is a cutaway structural stereogram of the screening and recovery mechanism of the present invention;

[0056] Figure 8 For the present invention Figure 7 A front view of the structure shown;

[0057] Fig. 9 A three-dimensional diagram of the connection structure of the wedge-shaped plate and the inclined drain plate of the present invention;

[0058] Fig.10 A three-dimensional diagram of the connection structure of the wedge-shaped plate, the inclined drain plate and the oscillation buffer portion of the present invention;

[0059] Fig.11A first-view stereoscopic view of the wire cutting mechanism of the present invention;

[0060] Fig.12 A second perspective stereoscopic view of the wire cutting mechanism of the present invention;

[0061] Fig.13 It is a front view of the wire cutting mechanism of the present invention;

[0062] Fig.14 A three-dimensional diagram of the splash-proof liquid infiltration portion of the present invention;

[0063] Fig.15 This is a three-dimensional diagram of the outer cover shell suit protection structure of the present invention;

[0064] Fig.16 It is a system control flow chart of the present invention.

[0065] Description of reference numerals:

[0066] Equipment bottom plate-1; support column-2; mounting plate-3; shot blasting gun body-4; jet delivery pump-5; high-pressure air pump-6; first screening part-7; second screening part-8; feed pipe-9; return port-10; splash-proof liquid infiltration part-11; shielding part-12; upper cone shell-13; lower cone shell-14; quick buckle-15; connecting pipe port-16; delivery pipe-17; upper screening box-18; lower screening box-19; cover plate-20; electric heating fan-21; cross bar-22; rail plate-23; support spring-24; pin shaft-25; wire cutting mechanism-26; control box-27; protective shell-28; first storage box-29; door panel-30; second storage box-31; single chip microcomputer-32; laser sensor-33; ultrasonic sensor-34; oscillation buffer part-35; outer cover shell-36;

[0067] Shot peening port-401; shot peening injection port-402; pressurized air supply port-403;

[0068] Pocket plate-701; screen frame-702; ring plate-703; elastic member-704; vibration motor-705;

[0069] Wedge-shaped plate-801; inclined leaking plate-802; wedge-shaped guide groove-803;

[0070] Anti-splash liquid supply bottle-111; transparent ring cover-112; sheet rubber baffle ring-113; booster pump-114; filter cartridge-115; waste liquid recovery bottle-116; reflux pump-117;

[0071] Annular pressing piece-121; sealing element-122;

[0072] Stationary knife arm-261; beam frame-262; electric push rod-263; movable knife arm-264; slotted bayonet-265; clamping block-266; blade-267; elastic gasket-268; pile block-269; herringbone feeding plate-2610; second torsion spring-2611; shaft rod-2612; shaft sleeve-2613; buffer spring-2614;

[0073] Ear plate-351; short shaft-352; buffer plate-353; support rod-354. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0075] The present invention provides Figure 1-14 The gun cleaning device based on the shot peening principle shown in the figure comprises a device bottom plate 1, a support column 2 fixed to the top of the device bottom plate 1 and a mounting plate 3 fixed to the top of the support column 2. The device bottom plate 1, the support column 2 and the mounting plate 3 form a stably placed mounting main frame. The gun cleaning device also comprises

[0076] A shot peening cleaning mechanism for cleaning the welding gun nozzle, and the shot peening cleaning mechanism includes a shot peening gun body 4, a jet delivery pump 5 and a high-pressure air pump 6, and the jet delivery pump 5 and the high-pressure air pump 6 respectively deliver the shot peening material and the high-pressure gas into the shot peening gun body 4, the gun cleaning process adopts a pneumatic shot peening method, and the welding gun nozzle is vertically downward facing the outlet of the shot peening gun body 4;

[0077] The shot peening material can be spherical particles with a diameter of 0.2mm. The diameter of the shot peening particles is between the diameter of the nozzle and the conductive nozzle. The shot peening material can be made of abrasive materials such as carbon steel, stainless steel, glass, and ceramics.

[0078] A screening and recovery mechanism for cleaning shot, and the screening and recovery mechanism includes a first screening part 7 and a second screening part 8, a feeding pipe 9 is provided between the shot peening cleaning mechanism and the screening and recovery mechanism, and a return port 10 is provided on the side of the screening and recovery mechanism, the first screening part 7 and the second screening part 8 cooperate to screen out clean shot, and the shot is transported to the return port 10 and sent back to the shot peening cleaning mechanism through the jet delivery pump 5 for recycling;

[0079] An anti-splash mechanism for preventing debris from splashing during cleaning, and the anti-splash mechanism includes an anti-splash liquid infiltration portion 11 and a shielding portion 12, the anti-splash liquid infiltration portion 11 is installed on the top side of the mounting plate 3, a shot peening port is provided on the top of the shot peening cleaning mechanism, and the shielding portion 12 is installed on the top of the shot peening port;

[0080] The welding gun nozzle is moved to the shot blasting cleaning mechanism for cleaning, and the shielding part 12 is used to shield the splashes. The screening recovery mechanism cooperates with the jet delivery pump 5 to circulate the shot blasting work. After treatment, the welding gun nozzle is treated with the anti-splash liquid infiltration part 11.

[0081] like Figure 5-6 As shown, the shot blasting cleaning mechanism includes an upper cone shell 13 and a lower cone shell 14, and the upper cone shell 13 is buckled on the top of the lower cone shell 14, and the upper cone shell 13 and the lower cone shell 14 are connected on both sides by quick buckles 15. A feeding port is opened at the bottom of the lower cone shell 14, and the upper cone shell 13 and the lower cone shell 14 are tightly fitted, and the welding gun nozzle and the shot blasting gun body 4 are placed therein;

[0082] The top of the shot peening gun body 4 is set as a shot peening injection port 401, the bottom of the shot peening gun body 4 is set as a shot peening injection port 402, the side of the shot peening gun body 4 is provided with a pressurized air replenishment port 403, and the shot peening injection port 401, the shot peening injection port 402 and the pressurized air replenishment port 403 are connected, and a connecting pipe port 16 is provided on the lower cone shell 14, and one end of the connecting pipe port 16 is connected to the shot peening injection port 402, the input end of the connecting pipe port 16 is connected to the delivery pipe 17, and the other end of the delivery pipe 17 is connected to the jet delivery pump 5, and the input end of the jet delivery pump 5 is connected to the return port 10, the input end of the jet delivery pump 5 is connected to a three-way pipe, one of which is connected to the return port 10, and the other is connected to the shot peening material collection box, and the pipeline is opened / closed by a ball valve;

[0083] The high-pressure air pump 6 provides 6 bar compressed air to ensure the required power. The pressurized air replenishment port 403 allows the compressed air and shot particles to be ejected from the shot ejection port 401 at the same time through the high-pressure air pump 6. When the compressed air enters the shot peening gun body 4 and circulates at high speed, the high-speed circulating gas forms a negative high pressure in the shot peening gun body 4, which accelerates the ejection speed of the shot particles, forms high-speed shot particles, and efficiently cleans the welding slag in the nozzle, preventing the welding slag from accumulating on the nozzle surface and affecting the welding quality.

[0084] When the welding gun is being cleaned, the nozzle enters into the shot peening port and is inserted into the caliber of the seal 122. The nozzle port of the welding gun is facing the shot peening gun body 4. The shot peening port 401 of the shot peening gun body 4 is facing the welding gun nozzle. The shot peening particles ejected from the welding gun nozzle can directly enter into the welding gun nozzle. Since the caliber of the seal 122 only allows the welding gun nozzle to enter, a tight protective layer can be formed around the welding gun nozzle to prevent the shot peening particles from flying out from the periphery of the nozzle.

[0085] like Figure 7-8As shown, the shot peening recovery mechanism includes an upper screening box 18 and a lower screening box 19 respectively located outside the first screening part 7 and the second screening part 8, and the upper screening box 18 is buckled on the top of the lower screening box 19, and a cover plate 20 is buckled on the outer side of the top of the upper screening box 18, and the lower cone shell 14 and the cover plate 20 are connected to the upper cone shell 13 on both sides by quick buckles 15, and a channel opening is opened at the top axis of the cover plate 20, and the discharge pipe 9 connects the channel opening with the discharge opening;

[0086] The first screening part 7 includes a pocket plate 701 and a screen frame 702 arranged on the inner side of the pocket plate 701, a ring plate 703 is integrally arranged on the inner bottom of the upper screening box 18, a plurality of elastic members 704 distributed in a ring array are fixedly installed between the pocket plate 701 and the ring plate 703, and the pocket plate 701 and the screen frame 702 are fixedly installed by screws, a vibration motor 705 is fixedly connected to the inner wall of the upper screening box 18, and the output end of the vibration motor 705 is transmission-connected to the pocket plate 701, the screen frame 702 is installed on the inner side of the pocket plate 701, the sieve holes thereon can drop the shot, and the elastic member 704 can be set as a spring to control the start of the vibration motor 705, and the output end vibration transmission screen frame 702 can shake, thereby improving the screening efficiency;

[0087] The second screening part 8 includes a wedge plate 801 and an inclined leaking plate 802 installed inside the lower screening box 19, a wedge-shaped guide groove 803 is provided at the bottom of the wedge plate 801, and the wedge-shaped guide groove 803 is inclined toward the middle and connected to the return port 10, the bottom end of the inclined leaking plate 802 matches the wedge-shaped guide groove 803, and the wedge-shaped guide groove 803 is distributed in an eight-shaped shape, the thickness of the wedge-shaped guide groove 803 is greater than the diameter of the return port 10, and the diameter of the return port 10 is greater than the shot blasting diameter;

[0088] The inclined leak plate 802 can be movably connected to the lower screening box 19, and cooperate with the vibration structure to improve its screening efficiency.

[0089] like Figure 7-8 and Fig.10 As shown, the oscillation buffer part 35 includes a plurality of groups of ear plates 351 symmetrically distributed on both sides of the wedge plate 801, the number of the ear plates 351 in each group is set to two, and a buffer plate 353 is rotatably connected between the two ear plates 351 in each group through a short shaft 352, and a first torsion spring sleeved on the short shaft 352 provides a supporting force between the buffer plate 353 and the ear plate 351;

[0090] The plurality of buffer plates 353 are all inclined, and the inclination direction of the buffer plates 353 is opposite to the inclination direction of the inclined drain plate 802. The lengths of the plurality of buffer plates 353 are equidistantly increased from top to bottom. A support rod 354 is connected between two adjacent buffer plates 353, and the two ends of the support rod 354 are respectively hinged to the middle and outer ends of the buffer plates 353 on both sides.

[0091] Impurities may adhere to the shot after the shot blasting gun is cleaned. After the impurities are screened, they return to the shot blasting cleaning mechanism together with the shot, affecting the shot blasting effect. In order to separate the recovered shot from the impurities, an oscillating buffer part 35 is provided. The recovered material will fall on the buffer plate 353 and bounce and collide with different buffer plates 353 multiple times. Under the movable structure of the support rod 354 and the buffer plate 353, with the support force of the first torsion spring and the impact force of the material, the impurities on the surface of the shot are shaken off during the oscillation of the buffer material, and the feeding extends to the upper end of the inclined leak plate 802, so as to fully screen out the debris.

[0092] Further, in the above technical solution, an electric hot air blower 21 is provided inside the upper screening box 18 and at the bottom of the first screening part 7, which can dry the shot blasting and the falling materials, and the electric hot air blower 21 blows air into the upper screening box 18, which can improve the screening efficiency of the first screening part 7 and the second screening part 8;

[0093] The bottom of the screen frame 702 is provided with a plurality of evenly distributed screen holes, and the inclined drain plate 802 is provided with a plurality of evenly distributed screen slots, and the screen slots are vertically distributed, so that the spherical shot will not be hindered by the screen slots, and small impurities can fall easily;

[0094] The diameter of the sieve hole is larger than the diameter of the shot and smaller than the size of the large pieces of detached objects, and is used to screen out the large pieces of detached objects. The width of the sieve gap is larger than the impurity particle ball and smaller than the diameter of the shot, and is used to screen out the impurity particles and leave clean shots.

[0095] Further, in the above technical solution, the anti-splashing liquid infiltration part 11 includes an anti-splashing liquid supply bottle 111, a waste liquid recovery bottle 116 and a transparent ring cover 112, a sheet rubber baffle ring 113 is provided at the top of the transparent ring cover 112, and an atomizing nozzle is provided inside the transparent ring cover 112, and a booster pump 114 is used to pressurize and transport the feed between the atomizing nozzle and the anti-splashing liquid supply bottle 111, a filter cartridge 115 is connected to the output end of the transparent ring cover 112, and waste liquid is transported between the filter cartridge 115 and the waste liquid recovery bottle 116 through a reflux pump 117;

[0096] The shielding portion 12 includes an annular pressing piece 121 and a sealing member 122. The sealing member 122 is pressed between the annular pressing piece 121 and the upper conical shell 13, and the annular pressing piece 121 and the upper conical shell 13 are detachably mounted by screws. The sealing member 122 is convenient for installation, replacement and maintenance, and the caliber of the sealing member 122 is larger than the caliber of the welding gun nozzle. The caliber of the sealing member 122 can be adjusted and replaced according to the specifications of the welding gun nozzle, thereby effectively solving the problem of cleaning the welding gun nozzles of different specifications.

[0097] Furthermore, in the above technical scheme, a cross bar 22 is fixedly connected to the inner wall of the lower cone shell 14, and a rail plate 23 is fixedly connected to the cross bar 22. The shot peening gun body 4 is slidably connected to the rail plate 23 through a pin shaft 25, and a support spring 24 is installed on the rail plate 23. The two ends of the support spring 24 are respectively fixedly connected to the rail plate 23 and the pin shaft 25. The shot peening gun body 4 is installed on the rail plate 23 through the pin shaft 25, and the support spring 24 plays an elastic supporting role. After the welding gun nozzle contacts the shot peening gun body 4, the shot peening gun body 4 can move downward for buffering to avoid damage to the device, and the shot peening gun body 4 can shake off the cleaning impurities and shot blasting attached to its surface when it is shaken up and down, thereby ensuring the cleanliness of the shot peening gun body 4.

[0098] like Figure 10-12 As shown, the gun cleaning device also includes a wire cutting mechanism 26 installed on the mounting plate 3, a control box 27 fixed on the mounting plate 3 is provided on one side of the wire cutting mechanism 26, an equipment box is also provided on the mounting plate 3, and a junction box is also provided on the outside of the control box 27 to facilitate circuit distribution connection and equipment installation;

[0099] The wire cutting mechanism 26 comprises a stationary knife arm 261 and a beam frame 262 on one side of the stationary knife arm 261, an electric push rod 263 is arranged at the bottom of the stationary knife arm 261, and the stationary knife arm 261, the beam frame 262 and the electric push rod 263 are all fixedly connected to the outer wall of the control box 27, a movable knife arm 264 is hingedly connected to the end of the beam frame 262 away from the control box 27, a groove-shaped bayonet 265 is provided at the bottom end of the movable knife arm 264, a clamping block 266 is fixedly connected to the output end of the electric push rod 263, and the clamping block 266 is movably connected to the groove-shaped bayonet 265, the end of the clamping block 266 is arranged in a hemispherical shape, the groove-shaped bayonet 265 penetrates the movable knife arm 264, and the bottom end is arranged in an open shape, and the longitudinal surface of the groove-shaped bayonet 265 is arranged in a T shape, that is, the output end of the electric push rod 263 penetrates into the groove-shaped bayonet 265, and the output end of the electric push rod 263 is slidably connected to the penetration opening;

[0100] A blade 267 is installed on the adjacent side of the top of the stationary blade arm 261 and the movable blade arm 264 by screws, and the cutting edges of the two blades 267 match each other, and an elastic gasket 268 is provided between the movable blade arm 264 and the blade 267;

[0101] When the wire cutting mechanism 26 is working, the output shaft of the electric push rod 263 is controlled to extend to push the block 266 to move in the groove-shaped bayonet 265. Since the beam frame 262 is hinged with the movable knife arm 264, when the output end of the electric push rod 263 pushes the block 266 and the groove-shaped bayonet 265, it can slide and twist to adapt to the twisting angle of the movable knife arm 264 until the two blades 267 contact and squeeze to cut the solder, and the elastic gasket 268 protects the blade 267, which has a slight elastic buffer when trimming the solder.

[0102] Furthermore, in the above technical solution, a protective shell 28 is provided outside the wire cutting mechanism 26, and a first storage box 29 is slidably connected to the bottom of the protective shell 28. The protective shell 28 prevents the trimmed solder from splashing, and the solder is collected by the first storage box 29 for easy cleaning;

[0103] The outside of the static knife arm 261 is fixedly connected with a pile block 269, and the outside of the pile block 269 is sleeved with a herringbone feeding plate 2610, and a second torsion spring 2611 is provided at the connection between the herringbone feeding plate 2610 and the pile block 269, and a notch is provided on the herringbone feeding plate 2610, and the notch matches the movable knife arm 264. In order to prevent the solder from falling to the top of the electric push rod 263 or being pressed between the control box 27 and the movable knife arm 264 after being cut, and to reduce the impact and damage to the device, the herringbone feeding plate 2610 is added to use the inclined surface to slide the solder into the first storage box 29, and the second torsion spring 2611 is used to make the herringbone feeding plate 2610 move on the pile block 269, and the abutment between the notch and the movable knife arm 264 can drive the herringbone feeding plate 2610 to move in a fitting manner, and the flexibility is high;

[0104] The outer side of the stationary knife arm 261 is rotatably connected to a shaft rod 2612, and the top of one side of the movable knife arm 264 is rotatably connected to a shaft sleeve 2613, and the shaft rod 2612 and the shaft sleeve 2613 are slidably connected, and a buffer spring 2614 is sleeved on the outer side of the shaft rod 2612, and the buffer spring 2614 is located between the end of the shaft rod 2612 and the shaft sleeve 2613.

[0105] Further, in the above technical solution, the lower cone shell 14 is mounted on the mounting plate 3 by screws, and the lower screening box 19 is mounted on the equipment bottom plate 1 by screws. The connection structure is stable and further improves the overall strength of the device;

[0106] A through opening is provided on the side of the lower screening box 19, and a door panel 30 is hinged in the through opening. A second storage box 31 is provided inside the lower screening box 19. The door panel 30 shields the interior of the lower screening box 19, and the second storage box 31 is used to collect small particle impurities and facilitate cleaning;

[0107] like Fig.15 As shown, an outer cover shell 36 is installed on the outer side of the top of the mounting plate 3 by screws, and the top of the outer cover shell 36 is provided with through grooves corresponding to the anti-splash liquid infiltration part 11, the shielding part 12 and the wire cutting mechanism 26, respectively, to protect the operating parts of the device and extend the service life of the device.

[0108] like Figure 1 and Fig.16 As shown, a single-chip microcomputer 32 is provided inside the control box 27, and the input end and the output end of the single-chip microcomputer 32 are electrically connected to an A / D converter and a D / A converter respectively;

[0109] A laser sensor 33 is installed in the middle of the top of the protective shell 28. The laser sensor 33 is used for one-time wire cutting and closed-loop detection feedback of the wire cutting mechanism 26. An ultrasonic sensor 34 is installed inside the upper cone shell 13. The ultrasonic sensor 34 is used to sense the welding gun nozzle entering the cleaning area of ​​the shot peening cleaning mechanism. The wire cutting mechanism 26 works through the laser sensor 33 ray sensing, and its ray position corresponds to the incision part of the blade 267. When the wire cutting mechanism 26 cuts, the ray is cut off. At this time, the detection signal is fed back to the single-chip microcomputer 32, and the feedback is processed to count the wire cutting, and the electric push rod can be controlled to stop and its output shaft can be controlled to retract in time to avoid the collision loss of the cutter. When the welding gun reaches the specified position, the gun cleaner shot peening gun body 4 starts to work;

[0110] The laser sensor 33 and the ultrasonic sensor 34 are both electrically connected to the A / D converter;

[0111] In this solution, both the laser sensor 33 and the ultrasonic sensor 34 are products in the prior art, and the connection method adopts conventional circuit connection, and the laser sensor 33 laser infrared induction reflection sensor is used as a photoelectric switch, such as the model E3F-R2C1 C2 B1 B1; the ultrasonic sensor 34 can be selected as the model HY40A16TR12-1;

[0112] The jet delivery pump 5, the high-pressure air pump 6, the vibration motor 705, the electric heating blower 21, the booster pump 114, the reflux pump 117 and the electric push rod 263 are all electrically connected to the D / A converter.

[0113] When the shot blasting gun cleaning device provided by the present invention is used, its working process is as follows:

[0114] First, debug the equipment to enter the gun cleaning program, use the robot to move the front nozzle of the welding gun to just above the shielding part 12, align the welding gun nozzle position with the shot peening port and move it downward, after the nozzle enters the shot peening port, move it vertically to put it into the shot peening cleaning mechanism, send a gun cleaning signal after reaching the specified position, and the program performs the gun cleaning action, start the high-pressure air pump 6 to supply 6 bar compressed air to the shot peening gun body 4 to increase the transmission power, cooperate with the jet delivery pump 5 to supply material from the delivery pipe 17, and the high-speed circulating gas forms a negative high pressure in the shot peening gun body 4, accelerates the ejection speed of the shot peening particles, forms high-speed shot peening particles, and ejects them from the shot peening injection port 401, effectively cleaning the welding slag in the nozzle to prevent the welding slag from accumulating on the nozzle surface and affecting the welding quality;

[0115] During cleaning, the mounting structure of the shot blasting gun body 4 and the rail plate 23 cooperates with the elastic supporting function of the supporting spring 24. When the welding gun nozzle contacts the shot blasting gun body 4, the shot blasting gun body 4 can move downward for buffering to avoid damage to the device. When the shot blasting gun body 4 is shaken up and down, the cleaning impurities and shot blasting attached to its surface can be shaken off to ensure the cleanliness of the shot blasting gun body 4.

[0116] The cleaned material contains shots and impurities of varying sizes. For the recovery of shots, sufficient screening and cleaning should be carried out to obtain clean shots for reuse. Specifically, the cleaned mixed material reaches the screening and recovery mechanism through the channel port, the discharge pipe 9 and the discharge port, and passes through the first screening part 7 and the second screening part 8 in turn. Impurities larger than the shots and impurities smaller than the shots are screened out in cooperation. In this process, the shots fall on the buffer plate 353 midway and bounce and collide with different buffer plates 353 multiple times. Under the movable structure of the support rod 354 and the buffer plate 353, the support force of the first torsion spring and the impact force of the material are cooperated. Impurities on the surface of the shots are shaken off during the oscillation of the buffer material, and the feeding extends to the upper end of the inclined leakage plate 802, fully screening out debris, screening out clean shots, rolling the shots to the return port 10 through the inclined leakage plate 802 and the wedge-shaped guide groove 803, and sending them back to the shot peening cleaning mechanism for recycling through the jet delivery pump 5.

[0117] When the wire cutting mechanism 26 is used to process the long solder, the output shaft of the electric push rod 263 is controlled to extend to push the block 266 to move in the groove-shaped clamping port 265 until the two blades 267 contact and squeeze to cut the solder. The elastic gasket 268 provides a slight elastic buffer when trimming the solder to protect the blade 267. A herringbone feed plate 2610 is added, and the solder is slid into the first storage box 29 by using the inclined surface. The second torsion spring 2611 enables the herringbone feed plate 2610 to move on the pile block 269, and cooperates with the abutment of the notch and the movable knife arm 264 to drive the herringbone feed plate 2610 to move in a fitting manner, thereby preventing the solder from falling to the top of the electric push rod 263 after being cut or being pushed between the control box 27 and the movable knife arm 264, thereby reducing the impact and damage to the device.

[0118] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gun cleaning device based on the shot peening principle, comprising a device base plate (1), a support column (2) fixed to the top of the device base plate (1), and a mounting plate (3) fixed to the top of the support column (2), characterized in that: The gun cleaning device also includes a shot peening cleaning mechanism for cleaning the welding gun nozzle, and the shot peening cleaning mechanism includes a shot peening gun body (4), a jet delivery pump (5) and a high-pressure air pump (6), and the jet delivery pump (5) and the high-pressure air pump (6) respectively deliver shot peening material and high-pressure gas into the interior of the shot peening gun body (4); A screening and recovery mechanism for cleaning shot, the screening and recovery mechanism comprising a first screening part (7) and a second screening part (8), and the second screening part (8) is also provided with an oscillation buffer part (35), a feed pipe (9) is provided between the shot cleaning mechanism and the screening and recovery mechanism, and a return port (10) is provided on the side of the screening and recovery mechanism, the first screening part (7) and the second screening part (8) cooperate to screen out clean shot, and the shot is transported to the return port (10) and sent back to the shot cleaning mechanism for recycling through a jet delivery pump (5); An anti-splash mechanism for preventing debris from splashing during cleaning, the anti-splash mechanism comprising an anti-splash liquid infiltration portion (11) and a shielding portion (12), the anti-splash liquid infiltration portion (11) being mounted on the top side of the mounting plate (3), a shot peening port being provided at the top of the shot peening cleaning mechanism, and the shielding portion (12) being mounted on the top of the shot peening port; The welding gun nozzle is moved to the shot blasting cleaning mechanism for cleaning, and the shielding part (12) is used to shield the splashing materials. The screening recovery mechanism cooperates with the jet delivery pump (5) to perform cyclic jet blasting. After the treatment, the welding gun nozzle is treated with the anti-splash liquid infiltration part (11); The screening recovery mechanism comprises an upper screening box (18) and a lower screening box (19) respectively located outside the first screening part (7) and the second screening part (8), and the upper screening box (18) is buckled on the top of the lower screening box (19), a cover plate (20) is buckled on the outside of the top of the upper screening box (18), and the lower cone shell (14) and the cover plate (20) are connected to the upper cone shell (13) on both sides by quick buckles (15), a channel opening is opened at the top axis of the cover plate (20), and a discharge pipe (9) connects the channel opening with the discharge opening; The first screening part (7) comprises a pocket plate (701) and a screen frame (702) arranged on the inner side of the pocket plate (701); a ring plate (703) is integrally arranged on the inner bottom of the upper screening box (18); a plurality of elastic members (704) distributed in a ring array are fixedly installed between the pocket plate (701) and the ring plate (703); the pocket plate (701) and the screen frame (702) are fixedly installed by screws; a vibration motor (705) is fixedly connected to the inner wall of the upper screening box (18); and an output end of the vibration motor (705) is drivingly connected to the pocket plate (701); The second screening part (8) comprises a wedge-shaped plate (801) and an inclined leakage plate (802) installed inside the lower screening box (19); a wedge-shaped guide groove (803) is provided at the bottom of the wedge-shaped plate (801), and the wedge-shaped guide groove (803) is inclined toward the middle and connected to the return material port (10); The oscillation buffer portion (35) comprises a plurality of groups of ear plates (351) symmetrically distributed on both sides of the wedge-shaped plate (801), the number of the ear plates (351) in each group is set to two, and a buffer plate (353) is rotatably connected between the two ear plates (351) in each group via a short shaft (352), and a first torsion spring sleeved on the short shaft (352) provides a supporting force between the buffer plate (353) and the ear plate (351); The plurality of buffer plates (353) are all arranged in an inclined manner, and the inclination direction of the buffer plates (353) is opposite to the inclination direction of the inclined leaking plate (802). The lengths of the plurality of buffer plates (353) increase equidistantly from top to bottom. A support rod (354) is connected between two adjacent buffer plates (353), and the two ends of the support rod (354) are respectively hinged to the middle and outer ends of the buffer plates (353) on both sides.

2. The gun cleaning device based on the shot peening principle according to claim 1 is characterized in that: The shot blasting cleaning mechanism comprises an upper cone shell (13) and a lower cone shell (14), wherein the upper cone shell (13) is buckled on the top of the lower cone shell (14), the upper cone shell (13) and the lower cone shell (14) are connected on both sides by quick buckles (15), and a discharge port is provided at the bottom of the lower cone shell (14); The top of the shot peening gun body (4) is provided with a shot peening port (401), the bottom of the shot peening gun body (4) is provided with a shot peening injection port (402), the side of the shot peening gun body (4) is provided with a pressurized air replenishing port (403), and the shot peening port (401), the shot peening injection port (402) and the pressurized air replenishing port (403) are connected, the lower cone shell (14) is provided with a connecting pipe port (16), and one end of the connecting pipe port (16) is connected to the shot peening injection port (402), the input end of the connecting pipe port (16) is connected to the delivery pipe (17), and the other end of the delivery pipe (17) is connected to the injection delivery pump (5), and the input end of the injection delivery pump (5) is connected to the return material port (10); A cross bar (22) is fixedly connected to the inner wall of the lower cone shell (14), and a rail plate (23) is fixedly connected to the cross bar (22). The shot blasting gun body (4) is slidably connected to the rail plate (23) via a pin shaft (25), and a support spring (24) is installed on the rail plate (23). Two ends of the support spring (24) are respectively fixedly connected to the rail plate (23) and the pin shaft (25).

3. The gun cleaning device based on the shot peening principle according to claim 1 is characterized in that: An electric heating fan (21) is provided inside the upper screening box (18) and at the bottom of the first screening part (7); The bottom of the screen frame (702) is provided with a plurality of evenly distributed screen holes, and the inclined leaking plate (802) is provided with a plurality of evenly distributed screen slots, and the screen slots are distributed vertically; The diameter of the sieve hole is larger than the diameter of the shot and smaller than the size of the large pieces of detached objects, and is used to screen out the large pieces of detached objects. The width of the sieve gap is larger than the impurity particle ball and smaller than the diameter of the shot, and is used to screen out the impurity particles and leave clean shots.

4. The gun cleaning device based on the shot peening principle according to claim 2 is characterized in that: The anti-splashing liquid infiltration part (11) comprises an anti-splashing liquid supply bottle (111), a waste liquid recovery bottle (116) and a transparent ring cover (112); a sheet-shaped rubber baffle ring (113) is provided at the top of the transparent ring cover (112); an atomizing nozzle is provided inside the transparent ring cover (112); a pressure-boosting pump (114) is used to pressurize and transport material between the atomizing nozzle and the anti-splashing liquid supply bottle (111); a filter cartridge (115) is connected to the output end of the transparent ring cover (112); and waste liquid is transported between the filter cartridge (115) and the waste liquid recovery bottle (116) via a reflux pump (117); The shielding portion (12) comprises an annular pressing sheet (121) and a sealing member (122), wherein the sealing member (122) is pressed between the annular pressing sheet (121) and the upper cone shell (13), and the annular pressing sheet (121) and the upper cone shell (13) are detachably mounted via screws, and the caliber of the sealing member (122) is larger than the caliber of the welding gun nozzle.

5. The gun cleaning device based on the shot peening principle according to claim 1 is characterized in that: The gun cleaning device also includes a wire cutting mechanism (26) mounted on the mounting plate (3), and a control box (27) fixed on the mounting plate (3) is provided on one side of the wire cutting mechanism (26); The wire cutting mechanism (26) comprises a stationary knife arm (261) and a beam frame (262) on one side of the stationary knife arm (261); an electric push rod (263) is provided at the bottom of the stationary knife arm (261); the stationary knife arm (261), the beam frame (262) and the electric push rod (263) are all fixedly connected to the outer wall of the control box (27); a movable knife arm (264) is hingedly connected to one end of the beam frame (262) away from the control box (27); a groove-shaped bayonet (265) is provided at the bottom end of the movable knife arm (264); a clamping block (266) is fixedly connected to the output end of the electric push rod (263); and the clamping block (266) is movably connected to the groove-shaped bayonet (265); A blade (267) is mounted on adjacent sides of the top ends of the stationary blade arm (261) and the movable blade arm (264) via screws, and the cutting edges of the two blades (267) match each other. An elastic gasket (268) is provided between the movable blade arm (264) and the blades (267).

6. The gun cleaning device based on the shot peening principle according to claim 5 is characterized in that: A protective shell (28) is provided on the outside of the wire cutting mechanism (26), and a first storage box (29) is slidably connected to the bottom of the protective shell (28); The outer side of the stationary knife arm (261) is fixedly connected to a pile block (269), and the outer side of the pile block (269) is sleeved with a herringbone feeding plate (2610), and a second torsion spring (2611) is provided at the connection between the herringbone feeding plate (2610) and the pile block (269), and a notch is provided on the herringbone feeding plate (2610), and the notch matches the movable knife arm (264); The outer side of the stationary blade arm (261) is rotatably connected to a shaft rod (2612), and the top of one side of the movable blade arm (264) is rotatably connected to a shaft sleeve (2613), and the shaft rod (2612) and the shaft sleeve (2613) are slidably sleeved, and the outer side of the shaft rod (2612) is sleeved with a buffer spring (2614), and the buffer spring (2614) is located between the end of the shaft rod (2612) and the shaft sleeve (2613).

7. The gun cleaning device based on the shot peening principle according to claim 6 is characterized in that: The lower cone shell (14) is mounted on the mounting plate (3) by means of screws, and the lower screening box (19) is mounted on the equipment bottom plate (1) by means of screws; The lower screening box (19) has a through opening on its side, and a door panel (30) is hingedly connected to the through opening; a second storage box (31) is provided inside the lower screening box (19); an outer cover shell (36) is mounted on the outer side of the top of the mounting plate (3) by means of screws, and the top of the outer cover shell (36) has through grooves corresponding to the splash-proof liquid infiltration portion (11), the shielding portion (12) and the wire cutting mechanism (26), respectively.

8. The gun cleaning device based on the shot peening principle according to claim 6 is characterized in that: A single-chip microcomputer (32) is provided inside the control box (27), and the input end and the output end of the single-chip microcomputer (32) are electrically connected to an A / D converter and a D / A converter respectively; a laser sensor (33) is installed in the middle of the top end of the protective shell (28), and the laser sensor (33) is used for one-time wire cutting and closed-loop detection feedback of the wire cutting mechanism (26); an ultrasonic sensor (34) is installed inside the upper cone shell (13), and the ultrasonic sensor (34) is used to sense that the nozzle of the welding gun enters the cleaning area of ​​the shot peening cleaning mechanism; The laser sensor (33) and the ultrasonic sensor (34) are both electrically connected to the A / D converter; The jet delivery pump (5), the high-pressure air pump (6), the vibration motor (705), the electric heating blower (21), the booster pump (114), the reflux pump (117) and the electric push rod (263) are all electrically connected to the D / A converter.

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