阅读说明：本技术 一种管件类精密铸造用的振动去壳装置 (Vibration shelling device for pipe fitting precision casting ) 是由 李鑫 于 2020-06-01 设计创作，主要内容包括：本发明公开的一种管件类精密铸造用的振动去壳装置,包括振动去壳箱,所述振动去壳箱内设有开口朝左的去壳腔,所述振动去壳箱内设有位于所述去壳腔下侧且与所述去壳腔相通的回收腔,所述去壳腔内设有砂芯去除装置,所述去壳腔内设有位于所述砂芯去除装置下侧的振动去壳装置,所述去壳腔内设有位于所述砂芯去除装置右侧的脉冲气流发生装置,所述脉冲气流发生装置能利用所述振动去壳装置动能产生所述砂芯去除装置所需的脉冲气流,所述去壳腔内设有用于对铸件进行喷丸去壳处理的喷丸去壳装置,本发明采用振动和喷丸复合方式进行去壳,去壳效率较高,效果较高,且能有效去除管件类铸件的砂芯。(The invention discloses a vibration shelling device for precision casting of pipe fittings, which comprises a vibration shelling box, wherein a shelling cavity with a leftward opening is arranged in the vibration shelling box, a recovery cavity which is positioned at the lower side of the shelling cavity and is communicated with the shelling cavity is arranged in the vibration shelling box, a sand core removing device is arranged in the shelling cavity, a vibration shelling device which is positioned at the lower side of the sand core removing device is arranged in the shelling cavity, a pulse airflow generating device which is positioned at the right side of the sand core removing device is arranged in the shelling cavity, the pulse airflow generating device can generate pulse airflow required by the sand core removing device by utilizing the kinetic energy of the vibration shelling device, and a shot blasting shelling device for carrying out shot blasting shelling treatment on castings is arranged in the shelling cavity. And the sand core of the pipe fitting casting can be effectively removed.)

1. The utility model provides a vibration device that shells that pipe fitting class precision casting used, removes the case including the vibration, its characterized in that: the vibration shelling device is characterized in that a shelling cavity with a leftward opening is arranged in the vibration shelling box, a recovery cavity which is positioned on the lower side of the shelling cavity and communicated with the shelling cavity is arranged in the vibration shelling box, a sand core removing device is arranged in the shelling cavity, the sand core removing device removes sand cores of pipe casting parts through rotary motion and pulse airflow, a vibration shelling device which is positioned on the lower side of the sand core removing device is arranged in the shelling cavity, the vibration shelling device is used for clamping and fixing castings and removing shells of the castings through vibration, the vibration shelling device comprises a lifting sliding plate which is connected to the inner wall on the right side of the shelling cavity in a sliding mode, a compression spring is connected between the lifting sliding plate and the inner wall on the lower side of the shelling cavity, a clamping cavity is connected on the lifting sliding plate in a rotating mode, the clamping cavity is communicated up and down, and an auxiliary electric cylinder is fixedly connected to the inner, the two auxiliary electric cylinders are bilaterally symmetrical, clamping rod clamping blocks which extend into the clamping cavities towards one side close to the symmetrical center are arranged in the auxiliary electric cylinders, the clamping rod clamping block is fixedly connected with a clamping cavity which is positioned in the clamping cavity and used for clamping and fixing the casting to be shelled, a gear ring is fixedly connected on the end surface of the upper side of the clamping cavity, the gear ring is communicated up and down, a third rotating shaft extending forwards is rotatably connected on the inner wall of the rear side of the shell removing cavity, the shelling cavity is internally provided with a pulse airflow generating device positioned on the right side of the sand core removing device, the pulse airflow generating device can generate pulse airflow required by the sand core removing device by utilizing the kinetic energy of the vibration shelling device, and a shot blasting shelling device for shot blasting shelling treatment of the casting is arranged in the shelling cavity, and the shot blasting shelling device can screen and recycle shot blasting and removed shell fragments.

2. The vibratory shelling apparatus for precision casting of tubulars as set forth in claim 1, wherein: the sand core removing device comprises an electric cylinder fixedly connected to the inner wall of the upper side of the shelling cavity, a lifting rod extending downwards into the shelling cavity is arranged in the electric cylinder, a motor base is fixedly connected to the lifting rod, a fixed rod is fixedly connected to the left end face of the motor base, an auxiliary rack located on the left side of the electric cylinder is fixedly connected to the fixed rod, a hose extending downwards is rotatably connected to the lower end face of the motor base, a first motor fixedly connected to the motor base is in power connection with the hose, an air box fixedly connected to the lower end face of the motor base is rotatably connected to the hose, the air box and the hose are in dynamic seal, the air box is communicated with the hose, a drill bit located on the lower side of the air box is fixedly connected to the hose, and four left and right through spray holes are formed in the drill bit, and a box door is rotatably connected to the opening at the left side of the shelling cavity.

3. The vibratory shelling apparatus for precision casting of tubulars as set forth in claim 1, wherein: the third rotating shaft is in power connection with a third motor fixedly connected to the inner wall of the rear side of the shelling cavity, an eccentric wheel is fixedly connected to the shelling cavity, the eccentric wheel is abutted against the lifting sliding plate, an auxiliary belt wheel positioned on the front side of the eccentric wheel is fixedly connected to the third rotating shaft, a bevel gear positioned at the front side of the secondary belt wheel is fixedly connected on the third rotating shaft, a supporting plate positioned at the lower side of the bevel gear is fixedly connected on the inner wall of the right side of the shelling cavity, a fourth rotating shaft extending up and down is rotatably connected on the supporting plate, an auxiliary bevel gear meshed with the bevel gear is fixedly connected on the fourth rotating shaft, fixedly connected with is located in the fourth pivot the second gear of backup pad downside, the second gear with half oval piece meshing is connected, fixedly connected with wooden trapezoidal piece on the chamber downside inner wall that shells.

4. A vibratory shelling apparatus as claimed in claim 2 for precision casting of tubulars wherein: the pulse airflow generating device comprises an air pump fixedly connected to the inner wall of the rear side of the shelling cavity, the air pump is penetrated through by a third rotating shaft, the third rotating shaft can drive the air pump to generate airflow, an air delivery hose is communicated and connected between the air pump and the air tank, an air storage tank is arranged on the air delivery hose, a valve body positioned on the left side of the air storage tank is arranged on the air delivery hose, a valve body cavity communicated with the air delivery hose is arranged in the valve body, a valve core is connected to the inner wall of the left side of the valve body cavity in a sliding manner, the valve core can seal a port between the valve body cavity and the left side of the air delivery hose, namely the valve core can seal a left opening of the valve body cavity, a driven rod extending downwards into the shelling cavity is fixedly connected to the end face of the lower side of the valve core, a push plate positioned on the lower side of the valve body is fixedly connected to the driven rod, and a speed increasing box, the speed increasing box is internally provided with a belt wheel shaft which extends forwards into the shelling cavity, the belt wheel shaft is fixedly connected with a belt wheel positioned on the front side of the speed increasing box, a V-shaped belt is connected between the belt wheel and the auxiliary belt wheel, the speed increasing box is internally provided with a second rotating shaft which extends forwards into the shelling cavity, the second rotating shaft is fixedly connected with a rotating wheel positioned on the front side of the speed increasing box, four semi-elliptical blocks are distributed on the circumferential end surface of the rotating wheel in an array mode, and the semi-elliptical blocks and the rotating wheel can be abutted to the push plate.

5. A vibratory shelling apparatus as claimed in claim 2 for precision casting of tubulars wherein: the shot blasting shelling device comprises a lifting cylinder which is connected to the inner wall of the rear side of the shelling cavity in a sliding manner and is positioned on the lower side of the lifting sliding plate, the lifting cylinder is communicated up and down, the inner walls of the left side and the right side of the lifting cylinder are respectively and fixedly connected with a spray head, the two spray heads are bilaterally symmetrical, a rack is fixedly connected to the end surface of the upper side of the lifting cylinder and is positioned on the left side of the auxiliary rack, the inner wall of the rear side of the shelling cavity is fixedly connected with a reduction gearbox positioned on the right side of the lifting cylinder, two gear shafts which extend forwards into the shelling cavity are arranged in the reduction gearbox and are arranged on the left and right sides, a first gear positioned on the front side of the reduction gearbox is fixedly connected to the gear shaft, the first gear on the left side is meshed with the lifting cylinder, the first gear on the right side is meshed with the auxiliary, the collecting tray is positioned at the communicating part of the shelling cavity and the recovery cavity, the inner wall of the rear side of the recovery cavity is rotatably connected with a first rotating shaft positioned at the lower side of the collecting tray, the first rotating shaft extends forwards, the first rotating shaft is in power connection with a second motor fixedly connected to the inner wall of the rear side of the recovery cavity, the first rotating shaft is provided with a magnetic separation wheel, the inner wall of the lower side of the recovery cavity is fixedly connected with a waste box with an upward opening, the waste bin is used for storing shell fragments, the waste bin is positioned at the right lower side of the magnetic separation wheel, the inner wall of the lower side of the recovery cavity is fixedly connected with a shot blasting recovery box positioned at the left side of the waste bin, the shot blasting recycling box is characterized in that the opening of the shot blasting recycling box is upward, the shot blasting recycling box is used for storing shot blasting, a shot blasting power source is arranged on the left end face of the shot blasting recycling box, and a gas path hose is communicated and connected between the shot blasting power source and the spray head.

Technical Field

The invention relates to the technical field of precision casting, in particular to a vibration shelling device for precision casting of pipe fittings.

Background

Precision casting, which refers to the general term for processes for obtaining castings of precise dimensions, comprises: investment casting, ceramic casting, metal casting, pressure casting, lost foam casting, and lost foam casting, wherein investment casting is more commonly used to manufacture an investment pattern; repeatedly dipping refractory paint and spreading refractory sand on the fired mold, hardening the mold shell and drying; dissolving the internal melting mold to obtain a cavity; firing the shell to achieve sufficient strength and burning off residual investment material; pouring the required metal material; the sand removing equipment is mainly used for removing shells by adopting single vibration, has low shelling efficiency and poor effect, and can not effectively remove sand cores of pipe fittings and castings.

Disclosure of Invention

The technical problem is as follows: most of the existing shelling and sand-removing equipment adopts single vibration to shell, the shelling efficiency is low, the effect is poor, and meanwhile, sand cores of pipe fittings and castings cannot be effectively removed.

In order to solve the problems, the embodiment designs a vibration shelling device for precision casting of pipe fittings, the vibration shelling device for precision casting of pipe fittings of the embodiment comprises a vibration shelling box, a shelling cavity with an opening facing to the left is arranged in the vibration shelling box, a recovery cavity which is positioned at the lower side of the shelling cavity and is communicated with the shelling cavity is arranged in the vibration shelling box, a sand core removing device is arranged in the shelling cavity, sand cores of pipe fittings casting parts are removed by the sand core removing device through rotary motion and pulse airflow, the vibration shelling device which is positioned at the lower side of the sand core removing device is arranged in the shelling cavity, the vibration shelling device is used for clamping fixed castings and removing shells of the castings through vibration, the vibration shelling device comprises a lifting sliding plate which is connected to the inner wall at the right side of the shelling cavity in a sliding manner, and a compression spring is connected between the lifting sliding plate and the inner wall at the lower side of the shelling cavity, the lifting slide plate is rotatably connected with a clamping cavity which is communicated up and down, the inner walls of the left side and the right side of the clamping cavity are respectively and fixedly connected with an auxiliary electric cylinder, the two auxiliary electric cylinders are bilaterally symmetrical, a clamping rod clamping block which extends into the clamping cavity to one side close to a symmetrical center is arranged in the auxiliary electric cylinder, the clamping rod clamping block is fixedly connected with a pulse airflow generating device which is positioned at the right side of the sand core removing device and is used for clamping and fixing a casting to be removed, a toothed ring is fixedly connected onto the end surface of the upper side of the clamping cavity and is communicated up and down, a third rotating shaft which extends forwards is rotatably connected onto the inner wall of the rear side of the removing cavity, and the pulse airflow generating device can generate pulse airflow required by the sand core removing device by utilizing the kinetic energy of the vibration removing device, and a shot blasting shelling device for shot blasting shelling treatment of the casting is arranged in the shelling cavity, and the shot blasting shelling device can screen and recycle shot blasting and removed shell fragments.

Preferably, the sand core removing device comprises an electric cylinder fixedly connected to the inner wall of the upper side of the shelling cavity, a lifting rod extending downwards into the shelling cavity is arranged in the electric cylinder, a motor base is fixedly connected to the lifting rod, a fixing rod is fixedly connected to the left end face of the motor base, an auxiliary rack positioned on the left side of the electric cylinder is fixedly connected to the fixing rod, a hose extending downwards is rotatably connected to the lower end face of the motor base, a first motor fixedly connected to the motor base is in power connection with the hose, an air box fixedly connected to the lower end face of the motor base is rotatably connected to the hose, the air box and the hose are in dynamic seal, the air box is communicated with the hose, a drill bit positioned on the lower side of the air box is fixedly connected to the hose, and four left-right through spray holes are formed in the drill bit, and a box door is rotatably connected to the opening at the left side of the shelling cavity.

Preferably, the third rotating shaft is in power connection with a third motor fixedly connected to the inner wall of the rear side of the shelling cavity, an eccentric wheel is fixedly connected to the shelling cavity, the eccentric wheel is abutted against the lifting sliding plate, an auxiliary belt wheel positioned on the front side of the eccentric wheel is fixedly connected to the third rotating shaft, a bevel gear positioned at the front side of the secondary belt wheel is fixedly connected on the third rotating shaft, a supporting plate positioned at the lower side of the bevel gear is fixedly connected on the inner wall of the right side of the shelling cavity, a fourth rotating shaft extending up and down is rotatably connected on the supporting plate, an auxiliary bevel gear meshed with the bevel gear is fixedly connected on the fourth rotating shaft, fixedly connected with is located in the fourth pivot the second gear of backup pad downside, the second gear with half oval piece meshing is connected, fixedly connected with wooden trapezoidal piece on the chamber downside inner wall that shells.

Preferably, the pulse airflow generating device comprises an air pump fixedly connected to the inner wall of the rear side of the shelling cavity, the third rotating shaft penetrates through the air pump, the third rotating shaft can drive the air pump to generate airflow, an air delivery hose is communicated and connected between the air pump and the air tank, an air storage tank is arranged on the air delivery hose, a valve body positioned on the left side of the air storage tank is arranged on the air delivery hose, a valve body cavity communicated with the air delivery hose is arranged in the valve body, a valve core is slidably connected to the inner wall of the left side of the valve body cavity, the valve core can seal a port of the valve body cavity and the left side of the air delivery hose, namely the valve core can seal a port of the left side of the valve body cavity, a driven rod extending downwards into the shelling cavity is fixedly connected to the end face of the lower side of the valve core, and a push plate positioned on the lower side, the inner wall of the rear side of the shelling cavity is fixedly connected with a speed increasing box located on the left upper side of the eccentric wheel, a belt wheel shaft extending forwards into the shelling cavity is arranged in the speed increasing box, a belt wheel located on the front side of the speed increasing box is fixedly connected onto the belt wheel shaft, a V belt is connected between the belt wheel and the auxiliary belt wheel, a second rotating shaft extending forwards into the shelling cavity is arranged in the speed increasing box, a rotating wheel located on the front side of the speed increasing box is fixedly connected onto the second rotating shaft, four semi-elliptical blocks are distributed on the circumferential end face of the rotating wheel in an array mode, and the semi-elliptical blocks and the rotating wheel can abut against the push plate.

Preferably, the shot blasting shelling device comprises a lifting cylinder which is slidably connected to the inner wall of the rear side of the shelling cavity and is positioned on the lower side of the lifting sliding plate, the lifting cylinder is vertically communicated, the inner walls of the left side and the right side of the lifting cylinder are respectively and fixedly connected with a spray head, the two spray heads are bilaterally symmetrical, a rack is fixedly connected to the end surface of the upper side of the lifting cylinder, the rack is positioned on the left side of the auxiliary rack, the inner wall of the rear side of the shelling cavity is fixedly connected with a reduction gearbox positioned on the right side of the lifting cylinder, the reduction gearbox is internally provided with two gear shafts which extend forwards into the shelling cavity, the two gear shafts are arranged leftwards and rightwards, the gear shafts are fixedly connected with a first gear positioned on the front side of the reduction gearbox, the first gear on the left side is meshed with the lifting, the recycling chamber is characterized in that a collecting tray with a downward opening is fixedly connected to the inner wall of the upper side of the recycling chamber, the collecting tray is located at a communication position of the shelling chamber and the recycling chamber, a first rotating shaft located on the lower side of the collecting tray is rotatably connected to the inner wall of the rear side of the recycling chamber, the first rotating shaft extends forwards, a second motor fixedly connected to the inner wall of the rear side of the recycling chamber is connected to the first rotating shaft in a power connection manner, a magnetic separation wheel is arranged on the first rotating shaft, a waste box with an upward opening is fixedly connected to the inner wall of the lower side of the recycling chamber, the waste box is used for storing shell fragments, the waste box is located on the right lower side of the magnetic separation wheel, a shot blasting recycling box located on the left side of the waste box is fixedly connected to the inner wall of the lower side of the recycling chamber, the shot blasting box, and the shot blasting power source and the spray head are communicated and connected with a gas path hose.

The invention has the beneficial effects that: the sand core removing device disclosed by the invention drills a drill bit into the sand core of the pipe fitting casting to remove the sand core, and removes the sand core by assistance of the pulse airflow, so that the sand core removing device has a better sand core removing effect, is suitable for removing the sand core of the bent inner hole of the pipe fitting casting, and can be used for vibrating, shelling and shot blasting shelling of the casting through the vibrating shelling device and the shot blasting shelling device, so that the shelling efficiency is improved, the shelling effect is improved, the removed shell can be broken into small pieces through shot blasting, the storage is convenient, and the utilization rate of a storage space can be reduced and improved.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a vibration shelling device for precision casting of pipe fittings according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is an enlarged view of the structure at "B" in FIG. 1;

FIG. 4 is an enlarged view of the structure at "C" of FIG. 3;

FIG. 5 is an enlarged view of the structure at "D" of FIG. 3;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 3.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 6, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a vibration shelling device for precision casting of pipe fittings, which is mainly applied to precision casting, and the invention is further explained by combining the attached drawings of the invention as follows: the invention relates to a vibration shelling device for precision casting of pipe fittings, which comprises a vibration shelling box 11, wherein a shelling cavity 47 with an opening facing to the left is arranged in the vibration shelling box 11, a recovery cavity 12 which is positioned at the lower side of the shelling cavity 47 and is communicated with the shelling cavity 47 is arranged in the vibration shelling box 11, a sand core removing device 101 is arranged in the shelling cavity 47, the sand core removing device 101 removes sand cores of pipe fitting castings through rotary motion and pulse airflow, a vibration shelling device 102 which is positioned at the lower side of the sand core removing device 101 is arranged in the shelling cavity 47, the vibration shelling device 102 is used for clamping and fixing the castings and removing shells of the castings through vibration, the vibration shelling device 102 comprises a lifting slide plate 45 which is connected to the inner wall at the right side of the shelling cavity 47 in a sliding manner, and a compression spring 46 is connected between the lifting slide plate 45 and the inner wall at the lower side of the shelling cavity 47, the lifting slide plate 45 is rotatably connected with a clamping cavity 67, the clamping cavity 67 is vertically communicated, the left side inner wall and the right side inner wall of the clamping cavity 67 are respectively and fixedly connected with an auxiliary electric cylinder 64 and two auxiliary electric cylinders 64 which are bilaterally symmetrical, a clamping rod clamping block 66 which extends into the clamping cavity 67 to be close to one side of a symmetrical center is arranged in each auxiliary electric cylinder 64, the clamping rod clamping block 66 is fixedly connected with a rotating shaft 81 which is positioned in the clamping cavity 67 and is used for clamping and fixing a casting to be shelled, a toothed ring 63 is fixedly connected on the upper side end surface of the clamping cavity 67 and vertically communicated with the toothed ring 63, the inner wall of the rear side of the shelling cavity 47 is rotatably connected with a third rotating shaft 81 which extends forwards, a pulse air flow generating device 103 which is positioned on the right side of the sand core removing device 101 is arranged in the shelling cavity 47, and the pulse air flow generating device 103 can generate pulse air flow required by the sand core removing device 101 by utilizing the kinetic, a shot blasting shelling device 104 for carrying out shot blasting shelling treatment on the casting is arranged in the shelling cavity 47, and the shot blasting shelling device 104 can screen and recycle shot blasting and removed shell fragments.

Beneficially, the sand core removing device 101 includes an electric cylinder 35 fixedly connected to the inner wall of the upper side of the shelling cavity 47, a lifting rod 58 extending downward into the shelling cavity 47 is arranged in the electric cylinder 35, a motor base 39 is fixedly connected to the lifting rod 58, a fixing rod 56 is fixedly connected to the left end face of the motor base 39, a secondary rack 34 positioned at the left side of the electric cylinder 35 is fixedly connected to the fixing rod 56, a downwardly extending hose 31 is rotatably connected to the lower end face of the motor base 39, a first motor 33 fixedly connected to the motor base 39 is dynamically connected to the hose 31, an air box 59 fixedly connected to the lower end face of the motor base 39 is rotatably connected to the hose 31, the air box 59 is in dynamic seal with the hose 31, the air box 59 is communicated with the hose 31, and a drill 68 positioned at the lower side of the air box 59 is fixedly connected to the hose 31, four spray holes 70 which are communicated left and right are arranged in the drill 68, and a box door 30 is rotatably connected to the opening at the left side of the shell removing cavity 47.

Advantageously, a third motor 88 fixedly connected to the inner wall of the rear side of the shelling chamber 47 is dynamically connected to the third rotating shaft 81, an eccentric wheel 43 is fixedly connected to the shelling chamber 47, the eccentric wheel 43 abuts against the lifting slider 45, a secondary pulley 86 located in front of the eccentric wheel 43 is fixedly connected to the third rotating shaft 81, a bevel gear 82 located in front of the secondary pulley 86 is fixedly connected to the third rotating shaft 81, a support plate 44 located below the bevel gear 82 is fixedly connected to the inner wall of the right side of the shelling chamber 47, a fourth rotating shaft 84 extending up and down is rotatably connected to the support plate 44, a secondary bevel gear 83 engaged with the bevel gear 82 is fixedly connected to the fourth rotating shaft 84, a second gear 62 located below the support plate 44 is fixedly connected to the fourth rotating shaft 84, and the second gear 62 is engaged with the semi-elliptical block 69, the inner wall of the lower side of the shelling cavity 47 is fixedly connected with a wooden trapezoidal block 25.

Advantageously, the pulsed airflow generating device 103 includes an air pump 87 fixedly connected to the inner wall of the rear side of the shelling chamber 47, the third rotating shaft 81 penetrates through the air pump 87, the third rotating shaft 81 can drive the air pump 87 to generate an airflow, an air hose 60 is connected between the air pump 87 and the air tank 59, an air storage tank 40 is arranged on the air hose 60, a valve body 61 positioned at the left side of the air storage tank 40 is arranged on the air hose 60, a valve body chamber 78 communicated with the air hose 60 is arranged in the valve body 61, a valve core 76 is slidably connected to the inner wall of the left side of the valve body chamber 78, the valve core 76 can seal the opening of the left side of the valve body chamber 78, namely, the valve core 76 can seal the opening of the left side of the valve body chamber 78, a driven rod 79 extending downward into the shelling chamber 47 is fixedly connected to the end face of the lower side of the valve core 76, the driven rod 79 is fixedly connected with a push plate 80 positioned on the lower side of the valve body 61, the inner wall of the rear side of the shelling cavity 47 is fixedly connected with a speed increasing box 41 positioned on the left upper side of the eccentric wheel 43, a pulley shaft 72 extending forwards into the shelling cavity 47 is arranged in the speed increasing box 41, the pulley shaft 72 is fixedly connected with a pulley 71 positioned on the front side of the speed increasing box 41, a V-belt 42 is connected between the pulley 71 and the secondary pulley 86, a second rotating shaft 74 extending forwards into the shelling cavity 47 is arranged in the speed increasing box 41, a rotating wheel 73 positioned on the front side of the speed increasing box 41 is fixedly connected to the second rotating shaft 74, four semi-elliptical blocks 69 are distributed on the circumferential end face of the rotating wheel 73 in an array mode, and the semi-elliptical blocks 69 and the rotating wheel 73 can be abutted against the push plate 80.

Beneficially, the shot blasting shelling device 104 comprises a lifting cylinder 27 slidably connected to the inner wall of the rear side of the shelling cavity 47 and located on the lower side of the lifting slide plate 45, the lifting cylinder 27 is vertically communicated, the inner walls of the left side and the right side of the lifting cylinder 27 are respectively and fixedly connected with a spray head 26, the two spray heads 26 are bilaterally symmetrical, the end surface of the upper side of the lifting cylinder 27 is fixedly connected with a rack 28, the rack 28 is located on the left side of the auxiliary rack 34, the inner wall of the rear side of the shelling cavity 47 is fixedly connected with a reduction box 32 located on the right side of the lifting cylinder 27, two gear shafts 55 extending forwards into the shelling cavity 47 are arranged in the reduction box 32, the two gear shafts 55 are arranged left and right, the first gear 54 located on the front side of the reduction box 32 is fixedly connected to the gear shafts 55, the first gear 54 on the left, the right side first gear 54 with vice rack 34 meshes and connects, retrieve fixedly connected with opening catch tray 13 down on the inboard wall of chamber 12 upside, catch tray 13 is located go shell chamber 47 with retrieve chamber 12 and communicate with each other and locate, it is connected with the first pivot 19 that is located catch tray 13 downside to rotate on the inboard wall of chamber 12 rear side, first pivot 19 extends forward, power connection has second motor 50 fixedly connected with on retrieving chamber 12 rear side inboard wall on the first pivot 19, be equipped with magnetic separation wheel 14 on the first pivot 19, retrieve fixedly connected with opening waste bin 20 up on the inboard wall of chamber 12 downside, waste bin 20 is used for storing the shell piece, waste bin 20 is located magnetic separation wheel 14 right side downside, fixedly connected with is located on retrieving chamber 12 downside inboard wall the left peening collection box 22 of waste bin 20, the opening of the shot blasting recycling box 22 faces upwards, the shot blasting recycling box 22 is used for storing shot blasting, a shot blasting power source 23 is arranged on the left side end face of the shot blasting recycling box 22, and a gas path hose 24 is communicated between the shot blasting power source 23 and the spray head 26.

The following will explain in detail the use steps of the vibration shelling device for precision casting of pipe fittings in the present text with reference to fig. 1 to 6: initial state: the lifting rod 58 and the hose 31 are positioned at the upper limit position, the spray hole 70 is positioned at the upper side of the clamping cavity 67, and the lifting cylinder 27 and the rack 28 are positioned at the upper limit position; during operation, a casting to be shelled is conveyed into the shelling cavity 47 manually or through a manipulator, the casting is located in the clamping cavity 67, the auxiliary electric cylinder 64 drives the clamping rod clamping block 66 to move towards one side close to the casting, so that the casting is clamped and fixed by the clamping rod clamping block 66, the electric cylinder 35, the first motor 33 and the third motor 88 are started, the electric cylinder 35 drives the lifting rod 58, the hose 31 and the drill 68 to move downwards, meanwhile, the first motor 33 drives the hose 31 and the drill 68 to rotate, so that the drill 68 rotates and moves downwards to enter the through hole of the pipe fitting casting, the sand core of the pipe fitting casting is removed through the rotation of the drill 68, meanwhile, the third motor 88 drives the third rotating shaft 81 to rotate, the third rotating shaft 81 drives the air pump 87 to work to generate air flow, the air flow is conveyed into the air storage box 40 through the air conveying hose 60 to be stored, the third rotating shaft 81 drives the auxiliary belt pulley 86 to rotate, the auxiliary belt pulley 86 drives, the belt wheel shaft 72 drives the second rotating shaft 74 and the rotating wheel 73 to rotate by increasing the speed of the speed increasing box 41, the rotating wheel 73 and the semi-elliptical block 69 can push the push plate 80, the driven rod 79 and the valve core 76 to reciprocate up and down under the action of the auxiliary compression spring 77, so that the left opening of the valve body cavity 78 is intermittently opened, gas stored in the gas storage box 40 can be conveyed into the hose 31 through the valve body cavity 78, the gas transmission hose 60 and the gas tank 59 in a pulse mode and is sprayed out through the spray holes 70, and the sand cores are removed in an auxiliary mode through pulse gas flow; meanwhile, the third rotating shaft 81 drives the eccentric wheel 43 to rotate, under the action of the compression spring 46, the eccentric wheel 43 can drive the lifting sliding plate 45 to vibrate up and down, the lifting sliding plate 45 drives the casting to vibrate up and down through the clamping cavity 67, the secondary electric cylinder 64 and the clamping rod clamping blocks 66 and 66, so that the casting can collide with the wooden trapezoidal block 25 to vibrate down to the shell, meanwhile, the third rotating shaft 81 drives the fourth rotating shaft 84 and the second gear 62 to rotate through the meshing connection of the bevel gear 82 and the secondary bevel gear 83, the second gear 62 drives the semi-elliptical block 69 and the clamping cavity 67 to rotate through the meshing connection, so that the casting can be driven to rotate, meanwhile, the second motor 50 and the shot blasting power source 23 are started, the shot blasting power source 23 conveys shot blasting in the shot blasting recycling box 22 to the spray head 26 through the hose air passage 24 and sprays the shot blasting to the casting to perform shot blasting shelling treatment on the casting, and the motor base, the auxiliary rack 34 is connected through meshing to drive the first gear 54 on the right side to rotate, the first gear 54 on the right side drives the reduction gearbox 32 to work through the gear shaft 55 on the rear side, the reduction gearbox 32 drives the gear shaft 55 on the left side and the first gear 54 on the left side to rotate in a speed reducing mode, the first gear 54 on the left side drives the rack 28 to move downwards through meshing connection, the rack 28 drives the lifting cylinder 27 to move downwards, shot blasting and shell removing can be conducted on four surfaces of a casting through rotation of the casting, downward movement of the lifting cylinder 27 and the spray head 26, and therefore the shell can be broken into small pieces through shot blasting, and the waste bin 20 can store more pieces; the second motor 50 is started, the second motor 50 drives the first rotating shaft 19 and the magnetic separation wheel 14 to rotate, the broken shell fragments, removed sand cores and shot blasting fall into the collection disc 13 through the opening of the shell passing cavity 47 and the recovery cavity 12, then the broken shell fragments and the removed sand cores fall onto the magnetic separation wheel 14 through the opening at the lower side of the collection disc 13, the magnetic separation wheel 14 adsorbs the shot blasting, drives the shot blasting to rotate to the upper side of the shot blasting recovery box 22 and then releases the shot blasting, the shot blasting is caused to fall into the shot blasting recovery box 22, and the broken shell fragments and the removed sand cores directly fall into the waste material box 20 for storage.

The invention has the beneficial effects that: the sand core removing device disclosed by the invention drills a drill bit into the sand core of the pipe fitting casting to remove the sand core, and removes the sand core by assistance of the pulse airflow, so that the sand core removing device has a better sand core removing effect, is suitable for removing the sand core of the bent inner hole of the pipe fitting casting, and can be used for vibrating, shelling and shot blasting shelling of the casting through the vibrating shelling device and the shot blasting shelling device, so that the shelling efficiency is improved, the shelling effect is improved, the removed shell can be broken into small pieces through shot blasting, the storage is convenient, and the utilization rate of a storage space can be reduced and improved.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.