CN115709440A - Gun cleaning device based on shot blasting type principle - Google Patents

Abstract

The invention discloses a gun cleaning device based on a shot blasting type principle, which comprises an equipment bottom plate, a supporting upright post fixed at the top of the equipment bottom plate, and a mounting plate fixed at the top end of the supporting upright post. According to the invention, the shot blasting mechanism is used for carrying out high-pressure shot blasting on the nozzle of the shot blasting gun, high-speed shot blasting particles sprayed out from the spray opening of the shot blasting gun body are used for efficiently cleaning welding slag in the nozzle, the welding slag is prevented from being accumulated on the surface of the nozzle, so that the welding quality is not influenced, the installation structure of the shot blasting gun body and the rail plate is matched with the elastic supporting action of the supporting spring, the contact between the nozzle of the shot blasting gun and the shot blasting gun body is buffered, the device is prevented from being damaged, cleaning impurities and shot blasting attached to the surface of the shot blasting gun body are shaken off, the cleanness and the shot blasting efficiency of the shot blasting gun body are ensured, the wire cutting mechanism is improved, the closed-loop detection feedback is realized, and the service life of the device is prolonged.

Description

Gun cleaning device based on shot blasting type principle

Technical Field

The invention relates to the field of welding gun cleaners, in particular to a gun cleaning device based on a shot blasting type principle.

Background

The gun cleaning device is mainly used for cleaning the inner surface and the outer surface of a nozzle of a MIG/MAG welding gun in the field of industrial automation so as to improve the welding quality and prevent the conditions that welding slag is accumulated to cause that protective gas is blocked or welding wires are clamped and the like, thereby influencing the welding quality. In order to effectively solve the problem that welding spatters and piles up and influence welding quality on the nozzle, traditional welder clear gun ware adopts the clear rifle principle of scraper formula, and after the welder nozzle entered into clear rifle preset position, clear gun ware scraper began high-speed rotation, cleared up the welding slag on nozzle surface through the physical contact of blade and nozzle internal surface. If the application number is 202010750147.8, the invention is named as a multifunctional gun cleaner, the invention patent application discloses a multifunctional gun cleaner, the multifunctional gun cleaner comprises a support, a shell is arranged on the support, a flexible scraper which enters a welding gun through plastic deformation and rotates relative to the welding gun to clean welding slag in the welding gun is arranged on the shell, a chip removal gap for discharging the welding slag is arranged on the flexible scraper, and a steel brush for cleaning the end face of the welding gun is arranged on the shell; the shell is provided with a wire cutting mechanism for cutting and collecting welding wires on the welding gun at a fixed length, the side edge of the shell is provided with a liquid spraying assembly for preventing welding slag from splashing when the steel brush is used for cleaning the end face of the welding gun, and the shell is provided with a slag blowing mechanism for blowing the welding slag scraped by the flexible scraper away from the shell. The spray pipe welding gun has multiple functions of spraying splashing liquid, recovering waste liquid, cleaning welding slag on the end face of the spray pipe, efficiently cleaning the gun, sweeping the welding slag, fixing the length of a welding wire, accurately cutting the wire, recovering the welding slag and the welding wire and the like, and can meet various requirements of customers; the waste generated by gun cleaning is completely recycled, so that the operating environment is improved; signals and programming do not need to be butted with the robot, and the operation is simple and convenient. However, the conventional scraper type gun cleaner has the following disadvantages:

the gun cleaning position has strict requirements: the scraper needs to rotate at a high speed to clean the nozzle of the welding gun, so that the center of the nozzle of the welding gun is required to be highly overlapped with the rotation center of the scraper, otherwise, the rotation process causes the deformation and damage of the blade or the hinge damage of the nozzle by the scraper, but in the practical application and operation process, the ideal state of complete overlapping of the rotation centers is difficult to achieve only through naked eyes and experience judgment;

the replacement cost of the nozzle and the scraper is high: because the scraper is in physical contact with the nozzle to clean the welding slag by a relatively high-speed rotating method, the method easily causes abrasion of the blade and the nozzle, the replacement frequency is high, and the cost of equipment spare parts is increased;

the universality is poor: the scraper type gun cleaning device is not suitable for a tip small-caliber nozzle, and the conical small-caliber nozzle needs a specially-customized blade, is high in use and modification cost and cannot be universally used for nozzles of other specifications;

the structure is complicated and the maintenance cost is high: the scraper type gun cleaning device is complex in structure, a circuit and a gas circuit control system are mostly needed, a welding gun enters a designated position in the gun cleaning process, a scraper extends into a nozzle and then rotates at a high speed, and the scraper retreats from the nozzle after the set number of rotation turns is reached, so that the gun cleaning process is completed;

the failure rate is high: since the splash has high energy, when the splash is firmly adhered to the surface of the nozzle, the scraper is easily stuck by the splash to cause the abrasion of the scraper and the damage of a welding gun.

There is also clear rifle device of non-scraper formula among the prior art, like application number 202020393158.0, the name is the utility model patent of an utilize high-speed abrasive material clearance welder's mechanism, and it discloses including clear rifle mechanism, sieve material mechanism, cut a mechanism, oil spout mechanism, control mechanism and installing support. This equipment utilizes compressed air, forms high negative pressure, with high-speed blowout in the abrasive material follow spray gun, clears up the surface of contact tube, contact tube seat and nozzle, can be thorough clear up, reach good effect to guarantee welder's efficiency, this equipment utilizes cylinder and bionical joint connecting piece with the help of laborsaving pincers, and the mode that imitates human use laborsaving pincers carries out the shearing to the welding gun welding wire, and seamless linking between two blades of laborsaving pincers can avoid the card silk phenomenon. And labor-saving pliers are high in strength, high in hardness and long in service life, and the oil spraying mechanism utilizes the siphon principle of a high-pressure atomizing nozzle to atomize and spray the anti-splashing agent to the welding gun conductive nozzle.

But adopt the peening mode to clear up the welder nozzle among the above-mentioned scheme, the device's peening rifle body adheres to impurity and shot-blast easily, influences the high-efficient clearance to the welding slag in the nozzle, can not fully filter impurity in the feed back, contains impurity not good to the clearance effect of nozzle in the shot-blast, still can cause clear rifle trouble, in addition, clear rifle, cut a thread etc. in-process lack feedback signal, it damages but does not report wrong information to appear cutting mechanism easily in process of production, lead to the problem that has the operation quality defect.

Therefore, it is necessary to invent a gun cleaning device based on the principle of shot blasting to solve the above problems.

Disclosure of Invention

The invention aims to provide a gun cleaning device based on a shot blasting type principle so as to solve the defects in the technology.

In order to achieve the above purpose, the invention provides the following technical scheme: a gun cleaning device based on a shot blasting type principle comprises an equipment bottom plate, a supporting upright post fixed at the top of the equipment bottom plate and a mounting plate fixed at the top end of the supporting upright post, and the gun cleaning device further comprises

The shot blasting mechanism is used for cleaning a nozzle of the welding gun and comprises a shot blasting gun body, a jet delivery pump and a high-pressure air pump, and shot blasting materials and high-pressure air are respectively delivered into the shot blasting gun body by the jet delivery pump and the high-pressure air pump;

the screening and recycling mechanism comprises a first screening part and a second screening part, the second screening part is also provided with an oscillation buffer part, a blanking pipe is arranged between the shot blasting mechanism and the screening and recycling mechanism, the side part of the screening and recycling mechanism is provided with a feed back port, the first screening part and the second screening part are matched to screen out clean shot blast, and the shot blast is conveyed to the feed back port and is returned to the shot blasting mechanism for recycling through a jet conveying pump;

the anti-splashing mechanism is used for preventing chips from splashing during cleaning and comprises an anti-splashing liquid soaking part and a shielding part, the anti-splashing liquid soaking part is arranged on the side part of the top end of the mounting plate, the top of the shot blasting mechanism is provided with a shot blasting opening, and the shielding part is arranged on the top of the shot blasting opening;

and moving the welding gun nozzle into a shot blasting cleaning mechanism for cleaning, matching with a shielding part to shield splashes, matching with a screening and recycling mechanism to spray shot blasting circularly by a spray conveying pump, and treating the welding gun nozzle by using a splash-proof liquid infiltration part after treatment.

As a preferred scheme of the invention, the shot blasting mechanism comprises an upper conical shell and a lower conical shell, the upper conical shell is buckled at the top of the lower conical shell, two sides of the upper conical shell and two sides of the lower conical shell are connected through a quick buckle, and the bottom of the lower conical shell is provided with a feed opening;

the shot blasting machine is characterized in that a shot blasting jet opening is formed in the top end of the shot blasting gun body, a shot blasting injection opening is formed in the bottom end of the shot blasting gun body, a pressurized air supplement opening is formed in the side portion of the shot blasting gun body, the shot blasting jet opening, the shot blasting injection opening and the pressurized air supplement opening are communicated, a connecting pipe opening is formed in the lower conical shell, one end of the connecting pipe opening is connected with the shot blasting injection opening, the input end of the connecting pipe opening is connected with a conveying pipe, the other end of the conveying pipe is connected with a jet conveying pump, and the input end of the jet conveying pump is communicated with a feed back opening.

As a preferred scheme of the invention, the shot blasting recycling mechanism comprises an upper screening box and a lower screening box which are respectively positioned at the outer sides of a first screening part and a second screening part, the upper screening box is buckled at the top of the lower screening box, a cover plate is buckled at the outer side of the top of the upper screening box, the two sides of the joint of a lower conical shell and the cover plate with an upper conical shell are connected through quick buckles, a channel opening is formed in the axle center of the top of the cover plate, and a blanking pipe is communicated with the channel opening and a blanking opening;

the first screening part comprises a pocket plate and a screen frame arranged on the inner side of the pocket plate, a ring plate is integrally arranged at the bottom of the inner side of the upper screening box, a plurality of elastic pieces distributed in an annular array are fixedly arranged between the pocket plate and the ring plate, the pocket plate and the screen frame are fixedly arranged through screws, the inner wall of the upper screening box is fixedly connected with a vibration motor, and the output end of the vibration motor is in transmission connection with the pocket plate;

the second screening portion is including installing in the inside wedge plate and the slope bushing of lower screening case, the wedge guide slot has been seted up to wedge plate bottom, and the wedge guide slot just communicates the feed back to middle part slope.

The vibration buffering part comprises a plurality of groups of lug plates which are symmetrically distributed on two sides of the wedge-shaped plate, the number of each group of lug plates is two, the two lug plates of each group are rotatably connected with the buffering plate through short shafts, and the buffering plate and the lug plates provide supporting force through first torsion springs sleeved on the short shafts;

as a preferred scheme of the invention, the plurality of buffer plates are obliquely arranged, the inclination direction of the buffer plates is opposite to that of the inclined bushing plate, the lengths of the plurality of buffer plates are sequentially increased in an equal difference manner from top to bottom, a support rod is connected between every two adjacent buffer plates, and two ends of the support rod are respectively hinged with the middle parts and the outer end parts of the buffer plates on two sides.

As a preferred scheme of the invention, an electric heating fan is arranged at the bottom of the first screening part and at the inner side of the upper screening box;

the bottom of the screen frame is provided with a plurality of uniformly distributed screen holes, the inclined bushing plate is provided with a plurality of uniformly distributed screen gaps, and the screen gaps are vertically distributed;

the screen hole diameter is larger than the shot blasting diameter and smaller than the size of the large-piece fallen objects, and is used for screening the large-piece fallen objects, the screen gap width is larger than the impurity particle balls and smaller than the shot blasting diameter, and is used for screening the impurity particles and leaving clean shot blasting.

As a preferable scheme of the invention, the anti-splashing liquid infiltration part comprises an anti-splashing liquid supply bottle, a waste liquid recovery bottle and a transparent ring cover, a sheet-shaped rubber baffle ring is arranged at the top end of the transparent ring cover, an atomizing nozzle is arranged in the transparent ring cover, the atomizing nozzle and the anti-splashing liquid supply bottle are pressurized and conveyed for supplying materials through a booster pump, the output end of the transparent ring cover is connected with a filter cylinder, waste liquid is conveyed between the filter cylinder and the waste liquid recovery bottle through a reflux pump, and the anti-splashing liquid is sprayed on the welding gun, so that splashes during welding are prevented from forming attachments which are difficult to clean in the welding gun;

the shielding part comprises an annular pressing sheet and a sealing element, the sealing element is pressed between the annular pressing sheet and the upper conical shell, the annular pressing sheet and the upper conical shell are detachably mounted through screws, and the caliber size of the sealing element is larger than that of a nozzle of the welding gun.

As a preferred scheme of the invention, the inner wall of the lower conical shell is fixedly connected with a cross rod, the cross rod is fixedly connected with a rail plate, the shot blasting gun body is connected with the rail plate in a sliding manner through a pin shaft, a supporting spring is arranged on the rail plate, and two ends of the supporting spring are respectively fixedly connected with the rail plate and the pin shaft.

As a preferred scheme of the invention, the gun cleaning device further comprises a wire cutting mechanism arranged on the mounting plate, and one side of the wire cutting mechanism is provided with a control box fixed on the mounting plate;

the wire cutting mechanism comprises a static cutter arm and a beam frame on one side of the static cutter arm, an electric push rod is arranged at the bottom of the static cutter arm, the beam frame and the electric push rod are fixedly connected with the outer wall of the control box, one end of the beam frame, which is far away from the control box, is hinged with a movable cutter arm, a groove-shaped bayonet is formed in the bottom end of the movable cutter arm, a clamping block is fixedly connected to the output end of the electric push rod, and the clamping block is movably connected with the groove-shaped bayonet;

the blade is installed through the screw in the adjacent one side in quiet sword arm and the sword arm top that moves, and two blade phase-matchs, it is equipped with the gasket to fill up between sword arm and the blade to move.

As a preferred scheme of the invention, a protective shell is arranged on the outer side of the wire cutting mechanism, and the bottom of the protective shell is connected with a first storage box in a sliding manner;

the outer side of the static cutter arm is fixedly connected with a pile block, the outer side of the pile block is sleeved with a herringbone feeding plate, a second torsion spring is arranged at the joint of the herringbone feeding plate and the pile block, a notch is formed in the herringbone feeding plate, and the notch is matched with the movable cutter arm;

the outer side of the static cutter arm is rotatably connected with a shaft rod, the top of one side of the movable cutter arm is rotatably connected with a shaft sleeve, the shaft rod is sleeved with the shaft sleeve in a sliding mode, the outer side of the shaft rod is sleeved with a buffer spring, and the buffer spring is located between the end portion of the shaft rod and the shaft sleeve.

As a preferred scheme of the invention, the lower conical shell is arranged on the mounting plate through screws, and the lower screening box is arranged on the equipment bottom plate through screws;

the opening has been seted up to lower screening case lateral part, and articulated in the opening have a door plant, the inside second receiver that is equipped with of lower screening case.

As a preferred scheme of the invention, an outer housing is mounted on the outer side of the top of the mounting plate through screws, and the top of the outer housing is provided with through grooves corresponding to the anti-splashing liquid infiltration part, the shielding part and the wire cutting mechanism respectively.

As a preferred scheme of the invention, a single chip microcomputer is arranged in the control box, and the input end and the output end of the single chip microcomputer are respectively and electrically connected with an A/D converter and a D/A converter;

the middle of the top end of the protective shell is provided with a laser sensor, the laser sensor is used for primary wire cutting and closed-loop detection feedback of the wire cutting mechanism, the upper conical shell is internally provided with an ultrasonic sensor, and the ultrasonic sensor is used for sensing that a welding gun nozzle enters a cleaning area of the shot blasting cleaning mechanism;

the laser sensor and the ultrasonic sensor are both electrically connected with the A/D converter;

and the jet delivery pump, the high-pressure air pump, the vibration motor, the electric heating fan, the booster pump, the reflux pump and the electric push rod are all electrically connected with the D/A converter.

In the technical scheme, the invention provides the following technical effects and advantages:

1. the shot blasting mechanism is used for carrying out high-pressure shot blasting on the nozzle of the shot blasting gun, high-speed shot blasting particles sprayed out from the spray port of the shot blasting gun body are used for efficiently cleaning welding slag in the nozzle, the welding slag is prevented from being accumulated on the surface of the nozzle to influence the welding quality, and the installation structure of the shot blasting gun body and the rail plate is matched with the elastic supporting effect of the supporting spring to buffer the contact between the nozzle of the shot blasting gun and the shot blasting gun body, so that the damage of a device is avoided, cleaning impurities and shot blasting shake attached to the surface of the shot blasting gun body can be removed, and the cleanness and the shot blasting efficiency of the shot blasting gun body are ensured;

2. cleaning materials through a channel port, a blanking pipe and a blanking port and conveying the cleaned materials to a screening and recycling mechanism, wherein a first screening part is matched with a second screening part to screen out impurities larger than shot blasting and impurities smaller than the shot blasting, the impurities on the surface of the shot blasting are shaken off by using a vibration buffer part midway, the materials are conveyed to the upper end part of an inclined bushing plate to screen out fragments sufficiently, the clean shot blasting is screened out, the shot blasting is rolled to a material return port through the inclined bushing plate and a wedge-shaped guide groove, and the shot blasting is returned to the shot blasting cleaning mechanism for recycling through a jet conveying pump, so that the repeated utilization rate of shot blasting particles is improved, the cost is reduced, the welding slag and the shot blasting particles are quickly separated, and gun cleaning faults caused by welding slag blocking an air pipe are prevented;

3. the wire shearing mechanism is improved, the problem that the blade is damaged due to collision or overlarge stress is solved, an elastic gasket is arranged to provide slight elastic buffering when the solder is sheared, the blade is protected, a herringbone feeding plate is additionally arranged, the solder slides into a first storage box by utilizing an inclined plane, the herringbone feeding plate moves on a pile block by a second torsion spring, the herringbone feeding plate is driven to move by matching the abutting action of a notch and a movable knife arm so as to always fit the movable knife arm, the solder is prevented from falling to the top of an electric push rod or being abutted between a control box and the movable knife arm after being sheared, and the influence and the damage to the device are reduced;

4. use through automatic monitoring system cooperation peening clearance mechanism and thread cutting mechanism, laser sensor utilizes ray sensing to cut the work of thread cutting mechanism, the notch part of its ray position correspondence blade, the ray is cut off when cutting the shearing of thread cutting mechanism, laser sensor feeds back the detected signal to the singlechip through the IO module this moment, accomplish the one time of cutting the thread cutting mechanism after the feedback and the closed loop detection feedback, control electric putter stops and its output shaft of timely control returns simultaneously, avoid cutter collision loss, ultrasonic sensor is used for sensing welder nozzle and gets into the clearance region of peening clearance mechanism, the rifle ware peening rifle body start-up work of cleaning when welder reachs the assigned position, machining control precision and machining efficiency have been improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a first perspective view of the overall construction of the present invention;

FIG. 2 is a second perspective view of the overall construction of the present invention;

FIG. 3 is a side view of the overall structure of the present invention;

FIG. 4 is a top view of the overall structure of the present invention;

FIG. 5 is a first perspective view of a cutting structure of the shot peening mechanism of the present invention;

FIG. 6 is a second perspective view of a cutting structure of the shot peening mechanism of the present invention;

FIG. 7 is a perspective view of a cutaway configuration of the screening recovery mechanism of the present invention;

FIG. 8 is a front view of the structure of FIG. 7 in accordance with the present invention;

FIG. 9 is a perspective view of the connection structure of the wedge plate and the inclined bushing according to the present invention;

FIG. 10 is a perspective view showing a connection structure of a wedge plate, an inclined bushing and an oscillation damping portion according to the present invention;

FIG. 11 is a first perspective view of the wire cutting mechanism of the present invention;

FIG. 12 is a second perspective view of the wire cutting mechanism of the present invention;

FIG. 13 is a front view of the wire cutting mechanism of the present invention;

FIG. 14 is a perspective view of the splash guard infiltration section of the present invention;

FIG. 15 is a perspective view of the protective structure of the outer casing assembly of the present invention;

FIG. 16 is a flow chart of the system control of the present invention.

Description of reference numerals:

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

a shot-peening orifice-401; a shot-blasting injection port-402; a pressurized air make-up port-403;

a pocket plate-701; a screen frame-702; a ring plate-703; an elastic member-704; shock motor-705;

a wedge-shaped plate-801; an inclined bushing-802; a wedge-shaped guide groove-803;

anti-splashing liquid supply bottle-111; a transparent ring cover-112; a sheet rubber retainer ring-113; a booster pump-114; a filter cartridge-115; a waste liquid recovery bottle-116; reflux pump-117;

annular tabletting-121; a seal-122;

a stationary knife arm-261; beam-262; an electric push rod-263; a movable cutter arm-264; a groove type bayonet-265; a clamping block-266; a blade-267; -268 of resilient pads; pile block-269; a herringbone feeding plate-2610; a second torsion spring-2611; shaft-2612; a shaft sleeve-2613; a buffer spring-2614;

ear plate-351; minor axis-352; a buffer plate-353; support bar-354.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The invention provides a gun cleaning device based on a shot blasting type principle, which comprises an equipment bottom plate 1, a supporting upright post 2 fixed at the top of the equipment bottom plate 1 and a mounting plate 3 fixed at the top end of the supporting upright post 2, wherein the equipment bottom plate 1, the supporting upright post 2 and the mounting plate 3 form a stably placed mounting main frame, and the gun cleaning device also comprises

The shot blasting mechanism is used for cleaning a welding gun nozzle and comprises a shot blasting gun body 4, a jet delivery pump 5 and a high-pressure air pump 6, shot blasting materials and high-pressure air are respectively delivered into the shot blasting gun body 4 by the jet delivery pump 5 and the high-pressure air pump 6, a pneumatic shot blasting mode is adopted in the gun cleaning process, and the welding gun nozzle vertically faces downwards to an outlet of the shot blasting gun body 4;

the shot blasting material can be spherical particles with the diameter of 0.2mm, the diameter of the shot blasting particles is between the caliber of the nozzle and the caliber of the contact nozzle, and the shot blasting material can be carbon steel, stainless steel, glass, ceramic and other abrasive materials;

the screening and recycling mechanism is used for shot blasting for cleaning and comprises a first screening part 7 and a second screening part 8, a blanking pipe 9 is arranged between the shot blasting mechanism and the screening and recycling mechanism, a feed back port 10 is arranged on the side part of the screening and recycling mechanism, the first screening part 7 and the second screening part 8 are matched to screen out clean shot blasting, and the shot blasting is conveyed to the feed back port 10 and is sent back to the shot blasting mechanism for recycling through a jet conveying pump 5;

the anti-splashing mechanism is used for preventing chips from splashing during cleaning and comprises an anti-splashing liquid soaking part 11 and a shielding part 12, the anti-splashing liquid soaking part 11 is arranged on the side part of the top end of the mounting plate 3, a shot blasting opening is arranged at the top of the shot blasting mechanism, and the shielding part 12 is arranged at the top of the shot blasting opening;

and moving the welding gun nozzle into a shot blasting cleaning mechanism for cleaning, matching with a shielding part 12 to shield splashes, matching with an injection conveying pump 5 by a screening and recycling mechanism to perform circular injection shot blasting work, and treating the welding gun nozzle by using an anti-splashing liquid soaking part 11 after treatment.

As shown in fig. 5-6, the shot blasting mechanism comprises an upper conical shell 13 and a lower conical shell 14, the upper conical shell 13 is buckled at the top of the lower conical shell 14, two sides of the upper conical shell 13 and two sides of the lower conical shell 14 are connected through a quick buckle 15, a feed opening is arranged at the bottom of the lower conical shell 14, the upper conical shell 13 and the lower conical shell 14 are tightly screwed, and a welding gun nozzle and a shot blasting gun body 4 are arranged in the upper conical shell 13 and the lower conical shell 14;

the top end of the shot blasting gun body 4 is provided with a shot blasting jet port 401, the bottom end of the shot blasting gun body 4 is provided with a shot blasting injection port 402, the side part of the shot blasting gun body 4 is provided with a pressurized air supplement port 403, the shot blasting jet port 401, the shot blasting injection port 402 and the pressurized air supplement port 403 are communicated, the lower conical shell 14 is provided with a connecting pipe orifice 16, one end of the connecting pipe orifice 16 is connected with the shot blasting injection port 402, the input end of the connecting pipe orifice 16 is connected with a conveying pipe 17, the other end of the conveying pipe 17 is connected with a jet conveying pump 5, the input end of the jet conveying pump 5 is communicated with a feed back port 10, the input end of the jet conveying pump 5 is connected with a three-way pipe, one of the three-way pipe is communicated with the feed back port 10, and the other one of the three-way pipe is connected with a shot blasting material collecting box, and the pipeline is controlled to be opened/closed by a ball valve;

the high-pressure air pump 6 provides 6bar compressed air to ensure required power, the compressed air supplementing port 403 enables the compressed air and shot blasting particles to be ejected out of the shot blasting ejection port 401 through the high-pressure air pump 6 simultaneously, when the compressed air enters the shot blasting gun body 4 and circulates at high speed, negative high pressure is formed in the shot blasting gun body 4 through high-speed circulating gas, the ejection speed of the shot blasting particles is accelerated, high-speed shot blasting particles are formed, welding slag in the nozzle is efficiently cleaned, and the welding slag is prevented from being accumulated on the surface of the nozzle to influence the welding quality;

when the welding gun is cleaned, the nozzle enters the inside of the shot blasting opening and is inserted into the caliber of the sealing element 122, the port of the welding gun nozzle is opposite to the shot blasting gun body 4, shot blasting particles sprayed by the shot blasting opening 401 of the shot blasting gun body 4 opposite to the welding gun nozzle can directly enter the inside of the welding gun nozzle, and because the caliber of the sealing element 122 only can allow the welding gun nozzle to enter, a tight protective layer can be formed around the welding gun nozzle, and the shot blasting particles are prevented from flying out of the periphery of the nozzle.

As shown in fig. 7-8, the shot blasting recycling mechanism comprises an upper screening box 18 and a lower screening box 19 which are respectively positioned at the outer sides of a first screening part 7 and a second screening part 8, the upper screening box 18 is buckled at the top of the lower screening box 19, a cover plate 20 is buckled at the outer side of the top of the upper screening box 18, two sides of the joint of a lower conical shell 14 and the upper conical shell 13 with the cover plate 20 are connected through a quick buckle 15, a channel opening is formed in the axle center of the top of the cover plate 20, and a feed pipe 9 is communicated with the channel opening and the feed 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 at the bottom of the inner side of the upper screening box 18, a plurality of elastic pieces 704 distributed in an annular array are fixedly arranged between the pocket plate 701 and the ring plate 703, the pocket plate 701 and the screen frame 702 are fixedly arranged through screws, the inner wall of the upper screening box 18 is fixedly connected with a vibration motor 705, the output end of the vibration motor 705 is in transmission connection with the pocket plate 701, the screen frame 702 is arranged on the inner side of the pocket plate 701, a shot blasting can be dropped through screen holes on the screen frame, the elastic pieces 704 can be arranged into springs, the vibration motor 705 is controlled to be started, the screen frame 702 is in vibration transmission at the output end of the screen frame 702, and screening efficiency is improved;

the second screening part 8 comprises a wedge-shaped plate 801 and an inclined bushing 802 which are arranged inside the lower screening box 19, the bottom of the wedge-shaped plate 801 is provided with a wedge-shaped guide groove 803, the wedge-shaped guide groove 803 inclines towards the middle and is communicated with the material return opening 10, the bottom end of the inclined bushing 802 is matched with the wedge-shaped guide groove 803, the wedge-shaped guide groove 803 is distributed in a splayed shape, the thickness of the wedge-shaped guide groove 803 is larger than the diameter of the material return opening 10, and the diameter of the material return opening 10 is larger than the diameter of shot blasting;

the inclined bushing 802 can be movably connected with the lower screening box 19 and then cooperate with a vibration structure to improve the screening efficiency.

As shown in fig. 7-8 and 10, the oscillation buffer portion 35 includes a plurality of sets of ear plates 351 symmetrically distributed on both sides of the wedge plate 801, the number of each set of ear plates 351 is two, a buffer plate 353 is rotatably connected between the two ear plates 351 of each set through a short shaft 352, and a supporting force is provided between the buffer plate 353 and the ear plates 351 through a first torsion spring sleeved on the short shaft 352;

the plurality of buffer plates 353 are obliquely arranged, the inclination direction of the buffer plates 353 is opposite to that of the inclined bushing plate 802, the lengths of the plurality of buffer plates 353 are sequentially increased in an equal difference mode from top to bottom, a support rod 354 is connected between every two adjacent buffer plates 353, and two ends of the support rod 354 are respectively hinged with the middle parts and the outer end parts of the buffer plates 353 on two sides;

impurity probably adheres to on the shot-blast behind the shot-blasting cleaning gun, there is impurity and throwing the ball and get back to shot-blasting cleaning mechanism simultaneously after its sieve, the effect of throwing the ball is thrown in the influence, in order to make the shot-blasting and the impurity separation of retrieving, set up vibration buffer 35, the material of retrieving can drop on buffer plate 353, and the different buffer plate 353 of spring formula multiple collision, under the active structure of bracing piece 354 and buffer plate 353, the holding power of cooperation first torsional spring and the impact force of material, the vibration buffer material in-process is shaken the impurity on ball surface of throwing, and the pay-off extends to slope bushing 802 upper end, be convenient for fully sieve down the piece.

Further, in the above technical solution, the electric heating fan 21 is arranged inside the upper screening box 18 and at the bottom of the first screening part 7, so that shot blasting and blanking can be dried, and the electric heating fan 21 blows air into the upper screening box 18, so that the screening efficiency of the first screening part 7 and the second screening part 8 can be improved;

the bottom of the screen frame 702 is provided with a plurality of uniformly distributed screen holes, the inclined bushing plate 802 is provided with a plurality of uniformly distributed screen gaps, the screen gaps are vertically distributed, the spherical shot blasting is not hindered by the screen gaps, and small impurities are convenient to fall;

the screen hole diameter is larger than the shot blasting diameter and smaller than the size of the large-piece fallen objects, and is used for screening the large-piece fallen objects, the screen gap width is larger than the impurity particle balls and smaller than the shot blasting diameter, and is used for screening the impurity particles and leaving clean shot blasting.

Further, in the above technical solution, the anti-splashing liquid soaking unit 11 includes 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 disposed on a top end of the transparent ring cover 112, and an atomizing nozzle is disposed in the transparent ring cover 112, the atomizing nozzle and the anti-splashing liquid supply bottle 111 are pressurized and conveyed to supply material through a booster pump 114, an output end of the transparent ring cover 112 is connected to a filter cartridge 115, and waste liquid is conveyed between the filter cartridge 115 and the waste liquid recovery bottle 116 through a reflux pump 117;

shielding portion 12 includes cyclic annular preforming 121 and sealing member 122, and the pressfitting of sealing member 122 is between cyclic annular preforming 121 and last awl shell 13, and cyclic annular preforming 121 passes through screw demountable installation with last awl shell 13, and sealing member 122 is convenient for install and change and is maintained, and sealing member 122 bore size is greater than welder nozzle bore, and sealing member 122 bore can adjust the change according to welder nozzle specification, effectively solves the clear rifle problem of different specification welder nozzles.

Further, in the above technical solution, the inner wall of the lower cone 14 is fixedly connected with a cross bar 22, and the cross bar 22 is fixedly connected with a rail plate 23, the shot blasting gun body 4 is slidably connected with the rail plate 23 through 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 with the rail plate 23 and the pin shaft 25, the shot blasting gun body 4 is installed on the rail plate 23 through the pin shaft 25, and the support spring 24 is utilized to play a role of elastic support, after the welding gun nozzle contacts the shot blasting gun body 4, the shot blasting gun body 4 can buffer downwards, damage to the device is avoided, and the shot blasting gun body 4 can shake off cleaning impurities attached to the surface of the shot blasting gun body and the shot blasting when shaking up and down, so as to ensure the cleaning of the shot blasting gun body 4.

As shown in fig. 10-12, the gun cleaning device further includes a wire cutting mechanism 26 mounted on the mounting plate 3, a control box 27 fixed on the mounting plate 3 is disposed on one side of the wire cutting mechanism 26, an equipment box is further disposed on the mounting plate 3, and a junction box is further disposed outside the control box 27 for facilitating circuit distribution connection and equipment installation;

the wire cutting mechanism 26 comprises a static blade arm 261 and a beam frame 262 on one side of the static blade arm 261, an electric push rod 263 is arranged at the bottom of the static blade arm 261, the beam frame 262 and the electric push rod 263 are all fixedly connected with the outer wall of the control box 27, one end, away from the control box 27, of the beam frame 262 is hinged with a movable blade arm 264, a slot-shaped bayonet 265 is formed in the bottom end of the movable blade arm 264, a clamping block 266 is fixedly connected to the output end of the electric push rod 263, the clamping block 266 is movably connected with the slot-shaped bayonet 265, the end of the clamping block 266 is hemispherical, the slot-shaped bayonet 265 penetrates through the movable blade arm 264, the bottom end of the clamping block is open, the longitudinal surface of the slot-shaped bayonet 265 is T-shaped, namely the output end of the electric push rod 263 penetrates into the slot-shaped bayonet 265, and the output end of the electric push rod 263 is slidably connected with the through opening;

the blades 267 are mounted on the adjacent sides of the top ends of the static blade arm 261 and the movable blade arm 264 through screws, the cutting edges of the two blades 267 are matched, and an elastic gasket 268 is arranged between the movable blade arm 264 and the blades 267 in a cushioning mode;

when the wire cutting mechanism 26 works, the output shaft of the electric push rod 263 is controlled to extend to push the fixture block 266 to move in the groove-shaped bayonet 265, and the beam frame 262 is hinged with the movable cutter arm 264, so that the fixture block 266 and the groove-shaped bayonet 265 can be twisted in a sliding fit manner in the movement of pushing the fixture block 266 by the output end of the electric push rod 263 to the groove-shaped bayonet 265 so as to adapt to the twisting angle of the movable cutter arm 264, until the two blades 267 are in contact and extruded to cut off solder, and the elastic gasket 268 protects the blades 267, so that slight elastic buffering is provided when the solder is cut.

Further, in the above technical scheme, a protective shell 28 is arranged outside the wire cutting mechanism 26, the bottom of the protective shell 28 is connected with a first storage box 29 in a sliding manner, and the protective shell 28 prevents the trimmed solder from splashing and is collected by the first storage box 29, so that the cleaning is facilitated;

the outer side of the static knife arm 261 is fixedly connected with a pile block 269, the outer side of the pile block 269 is sleeved with a herringbone feeding plate 2610, a second torsion spring 2611 is arranged at the joint of the herringbone feeding plate 2610 and the pile block 269, a notch is formed in the herringbone feeding plate 2610 and matched with the moving knife arm 264, in order to prevent the solder from falling to the top of the electric push rod 263 or being ejected between the control box 27 and the moving knife arm 264 after being sheared, the influence and the damage to the device are reduced, the herringbone feeding plate 2610 is additionally arranged, the solder slides into the first storage box 29 by utilizing the inclined surface, the herringbone feeding plate 2610 can move on the pile block 269 through the second torsion spring 2611, and the herringbone feeding plate 2610 can be driven to move in a fitting mode by matching the abutting effect of the notch and the moving knife arm 264, so that the herringbone feeding plate 2610 is high in flexibility;

a shaft 2612 is rotatably connected to the outer side of the stationary knife arm 261, a shaft sleeve 2613 is rotatably connected to the top of one side of the movable knife arm 264, the shaft 2612 is slidably sleeved with the shaft sleeve 2613, a buffer spring 2614 is sleeved on the outer side of the shaft 2612, and the buffer spring 2614 is positioned between the end of the shaft 2612 and the shaft sleeve 2613.

Further, in the above technical solution, the lower conical shell 14 is mounted on the mounting plate 3 through screws, and the lower screening box 19 is mounted on the equipment base plate 1 through screws, so that the connection structure is stable, and the overall strength of the device is further improved;

an opening is formed in the side portion of the lower screening box 19, a door plate 30 is hinged in the opening, a second storage box 31 is arranged inside the lower screening box 19, the door plate 30 shields the inside of the lower screening box 19, and the second storage box 31 is used for collecting small particle impurities and is convenient to clean;

as shown in fig. 15, an outer cover 36 is mounted on the outer side of the top of the mounting plate 3 by screws, and through grooves corresponding to the anti-splashing liquid wetting portion 11, the shielding portion 12 and the wire cutting mechanism 26 are formed in the top of the outer cover 36, so that the operating components of the device are protected, and the service life of the device is prolonged.

As shown in fig. 1 and 16, a single chip microcomputer 32 is disposed inside the control box 27, and an input end and an 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, the laser sensor 33 is used for primary wire cutting and closed-loop detection feedback of the wire cutting mechanism 26, an ultrasonic sensor 34 is installed inside the upper conical shell 13, the ultrasonic sensor 34 is used for sensing that a welding gun nozzle enters a cleaning area of the shot blasting cleaning mechanism, the wire cutting mechanism 26 is sensed to work through rays of the laser sensor 33, the ray position corresponds to the cut part of the blade 267, when the wire cutting mechanism 26 cuts, rays are cut off, at the moment, a detection signal is fed back to the single chip microcomputer 32, wire cutting counting is carried out after feedback, the electric push rod can be controlled to stop in time, the output shaft of the electric push rod can be controlled to retract in time, the collision loss of a cutter is avoided, and when a welding gun reaches a specified position, the shot blasting gun body 4 of the gun cleaner is started to work;

the laser sensor 33 and the ultrasonic sensor 34 are both electrically connected with the A/D converter;

in the scheme, the laser sensor 33 and the ultrasonic sensor 34 are both products in the prior art, the connection mode adopts conventional circuit connection, and the laser infrared induction reflection sensor of the laser sensor 33 is used as a photoelectric switch, for example, the model is E3F-R2C 1C 2B 1B 1; the ultrasonic sensor 34 can be selected from HY40A16TR12-1;

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

When the shot blasting type gun cleaning device provided by the invention is used, the working process is as follows:

firstly, debugging equipment enters a gun cleaning program, a robot is used for moving a nozzle at the front end of a welding gun to a position right above a shielding part 12, the position of the nozzle of the welding gun is aligned with a shot blasting opening and moves downwards, the nozzle vertically moves to be placed in a shot blasting mechanism after entering the shot blasting opening and sends a gun cleaning signal after reaching a specified position, the program performs gun cleaning action, a high-pressure air pump 6 is started to supply 6bar compressed air to a shot blasting gun body 4, transmission power is increased, the compressed air is supplied from a conveying pipe 17 by matching with a jet conveying pump 5, high-speed circulating gas forms negative high pressure in the shot blasting gun body 4, the jet speed of shot blasting particles is accelerated, high-speed shot blasting particles are formed and are jetted from a shot blasting jet port 401, welding slag in the nozzle is efficiently cleaned, and the welding slag is prevented from being accumulated on the surface of the nozzle so as to influence welding quality;

during cleaning, the mounting structure of the shot blasting gun body 4 and the rail plate 23 is matched with the elastic supporting action of the supporting spring 24, when a welding gun nozzle contacts the shot blasting gun body 4, the shot blasting gun body 4 can buffer downwards to avoid damage of the device, and cleaning impurities and shot blasting attached to the surface of the shot blasting gun body 4 can be shaken off when the shot blasting gun body 4 shakes up and down, so that the cleanness of the shot blasting gun body 4 is ensured;

for the cleaned materials, which contain shot blasting and impurities with different sizes, the shot blasting recycling mechanism needs to be fully screened and cleaned to obtain clean shot blasting for reuse, specifically, the cleaned mixed materials reach the screening and recycling mechanism through the passage port, the discharge pipe 9 and the discharge port, sequentially pass through the first screening part 7 and the second screening part 8 and are sequentially screened out impurities larger than the shot blasting and impurities smaller than the shot blasting under the cooperation of the first screening part and the second screening part, in the process, the shot blasting drops on the buffer plate 353 midway and bounces and collides with different buffer plates 353 for multiple times, under the movable structures of the support rod 354 and the buffer plate 353, the support force of the first torsion spring and the impact force of the materials are matched, the impurities on the surface of the shot blasting are shaken off in the process of oscillating and buffering the materials, the materials are fed to the upper end of the inclined leakage plate 802, fragments are fully screened out, the clean shot blasting is screened out, the shot blasting is rolled to the feed back port 10 through the inclined leakage plate 802 and the wedge-shaped guide groove 803, and is fed back to the shot blasting cleaning mechanism for recycling through the jet conveying pump 5;

when the wire cutting mechanism 26 is used for processing long solder, the output shaft of the electric push rod 263 is controlled to extend to push the clamping block 266 to move in the groove-shaped bayonet 265 until two blades 267 are in contact and extruded to cut the solder, the elastic gasket 268 provides slight elastic buffering when the solder is cut to protect the blades 267, a herringbone feeding plate 2610 is additionally arranged, the solder slides into the first storage box 29 by utilizing the inclined surface, the herringbone feeding plate 2610 moves on the pile block 269 by utilizing the second torsion spring 2611, the herringbone feeding plate 2610 is driven to be attached to move by matching the abutting action of the groove opening and the movable knife arm 264, the solder is prevented from falling to the top of the electric push rod 263 or being abutted between the control box 27 and the movable knife arm 264 after being cut, and the influence and damage to the device are reduced.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. The utility model provides a clear rifle device based on peening formula principle, includes equipment bottom plate (1), is fixed in support post (2) at equipment bottom plate (1) top and fixes mounting panel (3) on support post (2) top, its characterized in that: the gun cleaning device also comprises

The shot blasting mechanism is used for cleaning a nozzle of the welding gun and comprises a shot blasting gun body (4), a jet delivery pump (5) and a high-pressure air pump (6), and shot blasting materials and high-pressure air are respectively sent into the shot blasting gun body (4) by the jet delivery pump (5) and the high-pressure air pump (6);

the screening and recycling mechanism is used for cleaning shot blasting and comprises a first screening part (7) and a second screening part (8), an oscillation buffering part (35) is further arranged on the second screening part (8), a discharging pipe (9) is arranged between the shot blasting mechanism and the screening and recycling mechanism, a material return port (10) is arranged on the side part of the screening and recycling mechanism, the first screening part (7) and the second screening part (8) are matched to screen out clean shot blasting, the shot blasting is conveyed to the material return port (10) and is returned to the shot blasting mechanism through a jet conveying pump (5) for recycling;

the anti-splashing mechanism is used for preventing chips from splashing during cleaning and comprises an anti-splashing liquid soaking part (11) and a shielding part (12), the anti-splashing liquid soaking part (11) is arranged on the side part of the top end of the mounting plate (3), a shot blasting opening is formed in the top of the shot blasting mechanism, and the shielding part (12) is arranged on the top of the shot blasting opening;

and moving the welding gun nozzle into a shot blasting cleaning mechanism for cleaning, matching with a shielding part (12) to shield splashes, matching with a jet delivery pump (5) by a screening and recycling mechanism to perform circular jet blasting work, and treating the welding gun nozzle by using a splash-proof liquid infiltration part (11) after treatment.

2. The gun cleaning device based on the shot blasting type principle as claimed in claim 1, wherein: the shot blasting mechanism comprises an upper conical shell (13) and a lower conical shell (14), the upper conical shell (13) is buckled at the top of the lower conical shell (14), the upper conical shell (13) is connected with two sides of the lower conical shell (14) through a quick buckle (15), and a discharging opening is formed in the bottom of the lower conical shell (14);

the shot blasting machine is characterized in that a shot blasting jet port (401) is formed in the top end of the shot blasting gun body (4), a shot blasting injection port (402) is formed in the bottom end of the shot blasting gun body (4), a pressurized air supplement port (403) is formed in the side portion of the shot blasting gun body (4), the shot blasting jet port (401), the shot blasting injection port (402) and the pressurized air supplement port (403) are communicated, a connecting pipe orifice (16) is formed in a lower cone shell (14), one end of the connecting pipe orifice (16) is connected with the shot blasting injection port (402), the input end of the connecting pipe orifice (16) is connected with a conveying pipe (17), the other end of the conveying pipe (17) is connected with a jet conveying pump (5), and the input end of the jet conveying pump (5) is communicated with a feed back port (10);

lower cone shell (14) inner wall fixedly connected with horizontal pole (22), and fixedly connected with rail board (23) on horizontal pole (22), the peening rifle body (4) is through round pin axle (25) and rail board (23) sliding connection, and installs supporting spring (24) on rail board (23), supporting spring (24) both ends respectively with rail board (23) and round pin axle (25) fixed connection.

3. The gun cleaning device based on the shot blasting type principle as claimed in claim 2, wherein: the shot blasting recycling mechanism comprises an upper screening box (18) and a lower screening box (19) which are respectively positioned at the outer sides of a first screening part (7) and a second screening part (8), the upper screening box (18) is buckled at the top of the lower screening box (19), a cover plate (20) is buckled at the outer side of the top of the upper screening box (18), both sides of the joint of a lower conical shell (14) and the cover plate (20) with an upper conical shell (13) are connected through a quick buckle (15), a passage opening is formed in the axis of the top of the cover plate (20), and a blanking pipe (9) is communicated with the passage opening and a blanking 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 at the bottom of the inner side of the upper screening box (18), a plurality of elastic pieces (704) distributed in an annular array are fixedly arranged between the pocket plate (701) and the ring plate (703), the pocket plate (701) and the screen frame (702) are fixedly arranged through screws, the inner wall of the upper screening box (18) is fixedly connected with a vibration motor (705), and the output end of the vibration motor (705) is in transmission connection with the pocket plate (701);

second screening portion (8) are including installing in wedge board (801) and slope bushing (802) of screening case (19) inside down, wedge guide slot (803) have been seted up to wedge board (801) bottom, and wedge guide slot (803) to middle part slope and communicate feed back mouth (10).

4. A gun cleaning device based on the shot peening principle as claimed in claim 3, wherein: the vibration buffer part (35) comprises a plurality of groups of lug plates (351) which are symmetrically distributed on two sides of the wedge-shaped plate (801), the number of each group of lug plates (351) is two, a buffer plate (353) is rotatably connected between the two lug plates (351) of each group through a short shaft (352), and a supporting force is provided between the buffer plate (353) and the lug plates (351) through first torsion springs sleeved on the short shaft (352);

the buffer plates (353) are all obliquely arranged, the oblique direction of the buffer plates (353) is opposite to that of the oblique bushing plate (802), the length of the buffer plates (353) is sequentially increased in an equal difference mode from top to bottom, a support rod (354) is connected between every two adjacent buffer plates (353), and the two ends of the support rod (354) are hinged to the middle portion and the outer end portion of the buffer plates (353) on the two sides respectively.

5. A gun cleaning device based on the shot peening principle as claimed in claim 3, wherein: an electric heating fan (21) is arranged on the inner side of the upper screening box (18) and at the bottom of the first screening part (7);

a plurality of uniformly distributed sieve holes are formed in the bottom of the sieve frame (702), a plurality of uniformly distributed sieve gaps are formed in the inclined bushing plate (802), and the sieve gaps are vertically distributed;

the screen hole diameter is larger than the shot blasting diameter and smaller than the size of the large-piece fallen objects, and is used for screening the large-piece fallen objects, the screen gap width is larger than the impurity particle balls and smaller than the shot blasting diameter, and is used for screening the impurity particles and leaving clean shot blasting.

6. The gun cleaning device based on the shot blasting type principle as claimed in claim 2, wherein: the splash-proof liquid infiltration part (11) comprises a splash-proof liquid supply bottle (111), a waste liquid recovery bottle (116) and a transparent ring cover (112), wherein a sheet-shaped rubber baffle ring (113) is arranged at the top end of the transparent ring cover (112), an atomizing nozzle is arranged in the transparent ring cover (112), the atomizing nozzle and the splash-proof liquid supply bottle (111) are pressurized and conveyed for supplying materials through a booster pump (114), the output end of the transparent ring cover (112) is connected with a filter cylinder (115), and waste liquid is conveyed between the filter cylinder (115) and the waste liquid recovery bottle (116) through a reflux pump (117);

the shielding part (12) comprises an annular pressing sheet (121) and a sealing element (122), the sealing element (122) is pressed between the annular pressing sheet (121) and the upper conical shell (13), the annular pressing sheet (121) and the upper conical shell (13) are detachably mounted through screws, and the caliber of the sealing element (122) is larger than that of a nozzle of a welding gun.

7. A gun cleaning device based on the shot blasting type principle as claimed in claim 3, wherein: the gun cleaning device also comprises a wire cutting mechanism (26) arranged on the mounting plate (3), and one side of the wire cutting mechanism (26) is provided with a control box (27) fixed on the mounting plate (3);

the wire cutting mechanism (26) comprises a static cutter arm (261) and a beam frame (262) arranged on one side of the static cutter arm (261), an electric push rod (263) is arranged at the bottom of the static cutter arm (261), the beam frame (262) and the electric push rod (263) are fixedly connected with the outer wall of the control box (27), one end, far away from the control box (27), of the beam frame (262) is hinged with a movable cutter arm (264), a groove-shaped bayonet (265) is formed in the bottom end of the movable cutter 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 with the groove-shaped bayonet (265);

the blade (267) is all installed through the screw in quiet sword arm (261) and the adjacent one side in sword arm (264) top that moves, and two blade (267) cutting edges phase-match, it is equipped with elastic gasket (268) to fill up between sword arm (264) and blade (267) to move.

8. The gun cleaning device based on the shot blasting type principle as claimed in claim 7, wherein: a protective shell (28) is arranged on the outer side of the wire cutting mechanism (26), and the bottom of the protective shell (28) is connected with a first storage box (29) in a sliding manner;

the outer side of the static cutter arm (261) is fixedly connected with a pile block (269), the outer side of the pile block (269) is sleeved with a herringbone feeding plate (2610), a second torsion spring (2611) is arranged at the joint of the herringbone feeding plate (2610) and the pile block (269), a groove is formed in the herringbone feeding plate (2610), and the groove is matched with the movable cutter arm (264);

the outer side of the static knife arm (261) is rotatably connected with a shaft rod (2612), the top of one side of the movable knife arm (264) is rotatably connected with a shaft sleeve (2613), the shaft rod (2612) is in sliding sleeve connection with the shaft sleeve (2613), 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 part of the shaft rod (2612) and the shaft sleeve (2613).

9. The gun cleaning device based on the shot blasting type principle as claimed in claim 8, wherein: the lower conical shell (14) is mounted on the mounting plate (3) through screws, and the lower screening box (19) is mounted on the equipment bottom plate (1) through screws;

a through hole is formed in the side part of the lower screening box (19), a door plate (30) is hinged in the through hole, and a second storage box (31) is arranged in the lower screening box (19);

an outer housing (36) is installed on the outer side of the top of the installing plate (3) through screws, and through grooves corresponding to the splashing-preventing liquid soaking portion (11), the shielding portion (12) and the wire cutting mechanism (26) are formed in the top of the outer housing (36).

10. The gun cleaning device based on the shot blasting type principle as claimed in claim 8, wherein: a singlechip (32) is arranged in the control box (27), and the input end and the output end of the singlechip (32) are respectively and electrically connected with an A/D converter and a D/A converter;

the middle part of the top end of the protective shell (28) is provided with a laser sensor (33), 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 arranged in the upper conical shell (13), and the ultrasonic sensor (34) is used for sensing that a welding gun nozzle enters a cleaning area of the shot blasting cleaning mechanism;

the laser sensor (33) and the ultrasonic sensor (34) are both electrically connected with the A/D converter;

the jet delivery pump (5), the high-pressure air pump (6), the vibration motor (705), the electric heating fan (21), the booster pump (114), the reflux pump (117) and the electric push rod (263) are all electrically connected with the D/A converter.

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