Automatic rotating device for rotary table of low-pressure casting machine

Abstract

An automatic rotating device for a rotary table of a low-pressure casting machine is characterized by comprising a rotary table mechanism, an electric mechanism and a control mechanism, a PLC is adopted to control the rotating speed of a motor by using time of a signal sent by induction contact of a magnetic induction switch and a magnet, and the rotating table rotates by 45 degrees every time according to the production process; a low-pressure furnace lifter is adopted, so that a gap is formed between a low-pressure furnace and a rotary table, and the rotary table rotates; a rotary cover bearing arranged on the guide column and a plane bearing in the rotary table tray are adopted to position the rotary table, so that the rotary table can stably rotate; a worm gear is arranged in an electric worm and gear device cavity arranged in the rotary table; the reduction gearbox positioning frame arranged on the guide column is used for fixing the electric reduction gearbox; the worm and the internal tooth worm gear are meshed to drive the rotary table to rotate, so that the low-pressure casting machine is automatic and continuous in net taking and adding and unmanned in product casting, the production mode that manual operation is needed for product casting of the low-pressure casting machine is overturned, the production cost is reduced, and a foundation is laid for intelligent manufacturing.

Description

Technical Field

[0001] The present application relates to the field of casting, and in particular to an automatic rotating device for a turntable of a low-pressure casting machine. Background Art

[0002] In the foundry industry, the use of low-pressure casting machines to cast aluminum alloy products has the greatest advantage. In the production process, in order to obtain higher and more reliable product quality, a cheap and easy-to-handle filter screen needs to be added to the injection port of the product cavity before filling; Patent No. 202410733027.5, Name: A fully automatic low-pressure casting machine filter screen removal and screening equipment, which can automatically remove and screen the more economical glass fiber filter screen, but the technical description of the electric worm device for the turntable is not clear enough, which is not convenient for general technicians to implement a fully automatic low-pressure casting machine filter screen removal and screening equipment. Summary of the invention

[0003] In response to the above-mentioned problems, the present application provides an automatic rotation device for a turntable of a low-pressure casting machine, which is convenient for general technicians to implement a filter screen removal and screening equipment for a fully automatic low-pressure casting machine, and is conducive to the intelligent production of low-pressure casting products.

[0004] According to the technical solution of the present application: a low-pressure casting machine turntable automatic rotation device is characterized in that it includes a turntable mechanism, an electric mechanism, and a control mechanism.

[0005] The turntable mechanism, ( Figure 1 , Figure 2 , Figure 4 ) includes a turntable 1, a turntable 1 having a turntable cavity 2 at the upper end, a turntable 1 having a turntable 12 in the turntable cavity, a turntable 12 having a turntable bearing 7, the turntable bearing inner cavity 7 being arranged on a guide column 9 at one side of the low-pressure casting machine, and the outer circle of the bearing being connected to the turntable; a net taking and placing device 24 ( Figure 3 ); a turntable 1 is provided with a screen device 26 and a mold positioning card 27, and a ceramic mold 25 is provided in the mold positioning card 27 ( Figure 4 );The turntable of the rotary cover 12 is provided with an electric worm gear device cavity 3 of the electric mechanism, a worm wheel 4 is provided in the cavity wall of the electric worm gear device, worm wheel positioning pins 16 are provided on the worm wheel and the cavity wall of the electric worm gear device, a turntable tray 13 is provided at the lower part of the electric worm gear device cavity 3, the inner cavity of the turntable tray is tightly matched with the guide column 9, a reduction box positioning frame 10 connected to the electric worm gear is provided at the upper end of the turntable tray, a worm shaft hole is provided in one side of the reduction box positioning frame 10, a plane bearing cavity is provided at the lower part of the turntable tray 13, a plane bearing is provided on the plane bearing cavity, a positioning plate 14 of the turntable is supported on the upper end surface of the plane shaft, and two cavities for placing a magnetic induction switch 17 are provided under the plane bearing cavity; a magnet 18 is provided at the lower end of the turntable, and a power cord 21 is provided under the turntable ( Figure 3 ); A low-pressure casting machine 20, a turntable power line 21, and a low-pressure furnace lifter 22 are also provided on the turntable;

[0006] The electric mechanism includes a motor 5, the lower end of the motor 5 is connected to a gearbox 8, and one side of the gearbox 8 is provided with a long worm shaft 19 ( Figure 2 ), a worm 6 is arranged on the outer end of the long worm shaft passing through the worm shaft hole, a reduction box positioning frame 10 is arranged on the guide column 9, a reduction box positioning bolt 11 is arranged on one side of the reduction box positioning frame 10, a reduction box 8 with a motor 5 is arranged on one side of the reduction box positioning frame 10, a hole for placing a long worm shaft 19 is arranged in the reduction box positioning frame 10, a worm 6 is arranged on one end of the long worm shaft 19 passing through the hole, and the worm 6 is meshed with the worm wheel 4;

[0007] The control mechanism includes a worm motor 5 arranged on a reduction box 8, a worm 6 arranged on the other side of a reduction box positioning frame 10, a magnetic induction switch 17 arranged under the plane shaft, eight equally divided magnets arranged at the lower end of the turntable, a control cabinet 23 arranged on one side of the low-pressure casting machine, a PLC controller, a frequency converter and a contactor arranged in the control cabinet 23, a turntable power line 21 and a signal line 01 of the magnetic induction switch 17 are connected to the control cabinet 23; the PLC controller controls the speed of the motor 5 by the time the signal emitted by the magnetic induction switch 17 and the magnet 18 are induced to contact, and the turntable rotates 45 degrees each time according to the production process.

[0008] The technical effect of the automatic rotating device of the turntable of a low-pressure casting machine in the present application is as follows: a low-pressure furnace lifter 22 is used to create a gap between the low-pressure furnace and the turntable to allow the turntable to rotate; a turntable cover bearing 7 provided on the guide column 9 and a plane bearing 15 in the turntable tray 13 are used to position the turntable so that the turntable can rotate smoothly; a worm wheel is placed in the cavity of an electric worm gear device provided in the turntable; a reduction gear box positioning frame 10 provided on the guide column 9 is used to fix the electric reduction gear box; a long worm shaft 19 is used to pass through one end of the hole to place the worm 6; the worm 6 is engaged with the internal worm wheel 4 to drive the turntable to rotate, so that the storage net mechanism on the turntable can automatically add the net to the motor housing mold correctly; the net removal and addition of the low-pressure casting machine are automated and continuous, and the casting products are unmanned, which subverts the production method of low-pressure casting machine casting products that require manual operation, reduces production costs, and the production using silicon nitride molds is pollution-free and the product size accuracy is high, laying a foundation for intelligent manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic structural diagram of a simple automatic rotation low-pressure casting machine of the present application.

[0010] Figure 2 It is a structural schematic diagram of the transfer station device in this application.

[0011] Figure 3 It is a structural schematic diagram of the present application used in a filter screen taking and screen adding equipment for a fully automatic low-pressure casting machine.

[0012] Figure 4 yes Figure 3 Schematic diagram of the top view structure.

[0013] In the figure, signal line 01, turntable 1, turntable cover cavity 2, electric worm gear device cavity 3, worm wheel 4, worm motor 5, worm 6, turntable cover bearing 7, reducer 8, low-pressure casting machine guide column 9, reducer box positioning frame 10, reducer box positioning bolt 11, turntable 12, turntable tray 13, turntable positioning plate 14, plane bearing 15, worm gear positioning pin 16, magnetic induction switch 17, magnet 18, long worm shaft 19, low-pressure casting machine 20, turntable power line 21, low-pressure furnace lifter 22, control cabinet 23, net placement device 24, ceramic mold 25, net placement device 26, mold positioning card 27, etc. are included. DETAILED DESCRIPTION

[0014] The specific implementation methods of the present application will be further described below in conjunction with the accompanying drawings.

[0015] As shown in the figure, according to the technical solution of the present application: a low-pressure casting machine turntable automatic rotation device, characterized in that it includes a turntable mechanism, an electric mechanism, and a control mechanism.

[0016] The turntable mechanism, ( Figure 1 , Figure 2 , Figure 4 ) includes a turntable 1, the turntable cavity 2 is arranged at the upper end of the turntable 1, the turntable 12 is arranged in the turntable cavity, the turntable bearing 7 is arranged at the center of the turntable 12, the turntable bearing inner cavity 7 is arranged on a guide column 9 on one side of the low-pressure casting machine, and the outer circle of the bearing is fixed to the turntable; the net placement device 24 is arranged on the guide column 9 ( Figure 3 ); the net device 26 and the mold positioning card 27 are arranged on the turntable 1, and the ceramic mold 25 is arranged in the mold positioning card 27 ( Figure 4); the electric worm gear device cavity 3 of the electric mechanism is arranged in the turntable of the rotary cover 12, the internal gear worm wheel 4 is arranged in the cavity wall of the electric worm gear device, the worm wheel positioning pin 16 is arranged in the worm wheel and the cavity wall of the electric worm gear device, the turntable tray 13 is arranged at the lower part of the reduction box positioning frame 10, the inner cavity of the turntable tray is tightly matched with the guide column 9, the reduction box positioning frame 10 of the electric worm gear is arranged at the upper end of the turntable tray, the worm shaft hole is arranged on one side of the reduction box positioning frame 10, the plane bearing cavity is arranged at the lower part of the turntable tray 13, the plane bearing is arranged in the plane bearing cavity, the positioning plate 14 of the turntable is arranged on the plane bearing, the magnetic induction switch cavity is two, and a magnetic induction switch needs to be set; the magnet 18 is arranged at the lower end of the turntable, and the power cord 21 of the turntable motor is arranged under the turntable ( Figure 3 ); the low-pressure casting machine 20 is integrated with the turntable, and the low-pressure furnace lifter 22 is arranged under the turntable;

[0017] The electric mechanism includes a motor 5, the gearbox 8 is connected to the lower end of the motor 5, and the long worm shaft 19 is arranged on one side of the reduction box 8 ( Figure 2 ), the worm 6 is tightly fitted on the long worm shaft passing through the worm shaft hole, the reduction box positioning frame 10 is arranged on the guide column 9, the reduction box positioning bolt 11 is used to connect the reduction box and the reduction box positioning frame 10, and the worm 6 is geared with the worm wheel 4;

[0018] The control mechanism includes a worm motor 5 arranged on a reduction box 8, and the worm 6 is arranged on the other side of the reduction box positioning frame 10; the magnetic induction switch 17 is arranged below the plane axis, and magnets are arranged above the magnetic induction switch 17 at the lower end of the turntable, each of which is divided into eight equal parts; the control cabinet 23 is arranged on one side of the low-pressure casting machine, and the PLC controller, frequency converter and contactor are arranged in the control cabinet 23; the turntable power line 21 and the signal line 01 of the magnetic induction switch 17 are connected to the control cabinet 23;

[0019] The PLC controller controls the speed of the motor 5 by the time taken for the signal emitted by the magnetic force induction switch 17 and the magnet 18 to contact each other. According to the production process, the turntable rotates 45 degrees each time.

[0020] The speed of the motor 5 is 45 degrees per rotation of the turntable according to the production process.

[0021] The present application discloses an automatic rotating device for a turntable of a low-pressure casting machine, which is arranged on a low-pressure furnace lifter 22 to create a gap between the low-pressure furnace and the turntable, so that the turntable can be rotated 45 degrees or raised and sealed; the turntable is positioned by a turntable cover bearing 7 arranged on a guide column 9 and a plane bearing 15 in a turntable tray 13, so that the turntable can rotate smoothly; the worm wheel is arranged in the cavity of an electric worm gear device arranged in the turntable; the electric reducer is fixed by a reduction box positioning frame 10 arranged on the guide column 9; a long worm shaft 19 is adopted to pass through one end of a hole to accommodate a worm 6; the worm 6 is engaged with an internal worm wheel 4 to drive the turntable to rotate, so that the net storage mechanism on the turntable can correctly and automatically add a net to the motor housing mold; the net removal and addition of the low-pressure casting machine are automated and continuous, and the casting products are unmanned, which has overturned the production method of low-pressure casting machine casting products that require manual operation, reduced production costs, and the production using silicon nitride molds is pollution-free and the product size accuracy is high, laying a foundation for intelligent manufacturing.

[0022] The present application is described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, which all fall within the scope of protection of the present application.

Claims

1. An automatic rotating device for a turntable of a low-pressure casting machine, characterized in that: It includes a turntable mechanism, an electric mechanism and a control mechanism. The turntable mechanism includes a turntable, the turntable cover cavity is arranged at the upper end of the turntable, the turntable cover is arranged in the turntable cover cavity, the turntable cover bearing is arranged at the center of the turntable, the turntable cover bearing inner cavity is arranged on the guide column on one side of the low-pressure casting machine, and the outer circle of the bearing is fixed to the turntable; the net taking and placing device is arranged on the guide column; the net placing device and the mold positioning card are arranged on the turntable surface, and the ceramic mold is arranged in the mold positioning card; the electric worm gear device cavity of the electric mechanism is arranged in the turntable of the turntable, the internal worm gear is arranged in the cavity wall of the electric worm gear device, the worm gear positioning pin is arranged in the worm gear and the cavity wall of the electric worm gear device, and the The turntable tray is arranged at the lower part of the reduction box positioning frame, the inner cavity of the turntable tray is tightly matched with the guide column, the reduction box positioning frame of the electric worm gear is arranged at the upper end of the turntable tray, the worm shaft hole is arranged at one side of the reduction box positioning frame, the plane bearing cavity is arranged at the lower part of the turntable tray, the plane bearing is arranged in the plane bearing cavity, the positioning plate of the turntable is arranged on the plane bearing, the two magnetic induction switch cavities are required to be provided with a magnetic induction switch; the magnet is arranged at the lower end of the turntable, and the power cord of the turntable motor is arranged under the turntable; the low-pressure casting machine is integrated with the turntable, and the low-pressure furnace lifter is arranged under the turntable; The electric mechanism includes a motor, the gearbox 8 is connected to the lower end of the motor, the long worm shaft is arranged on one side of the reduction box, the worm is tightly fitted on the long worm shaft passing through the worm shaft hole, the reduction box positioning frame is arranged on the guide column, the reduction box positioning bolt is used to connect the reduction box and the reduction box positioning frame, and the worm is engaged with the worm wheel; The control mechanism includes a worm motor arranged on a reduction box, the worm being arranged on the other side of a reduction box positioning frame; a magnetic induction switch being arranged below the plane axis, and magnets each arranged in eight equal parts above the magnetic induction switch at the lower end of the turntable; the control cabinet being arranged on one side of the low-pressure casting machine, and the PLC controller, the frequency converter and the contactor being arranged in the control cabinet; the power line of the turntable and the signal line of the magnetic induction switch being connected to the control cabinet; The PLC controller controls the speed of the motor by the time it takes for the signal from the magnetic induction switch to contact the magnet. According to the production process, the turntable rotates 45 degrees each time. The turntable mechanism includes a turntable, the turntable cover cavity is arranged at the upper end of the turntable, the turntable cover is arranged in the turntable cover cavity, the turntable cover bearing is arranged at the center of the turntable, the turntable cover bearing inner cavity is arranged on the guide column on one side of the low-pressure casting machine, and the outer circle of the bearing is fixed to the turntable; the net taking and placing device is arranged on the guide column; the net placing device and the mold positioning card are arranged on the turntable surface, and the ceramic mold is arranged in the mold positioning card; the electric worm gear device cavity of the electric mechanism is arranged in the turntable of the turntable, the internal worm gear is arranged in the cavity wall of the electric worm gear device, the worm gear positioning pin is arranged in the worm gear and the cavity wall of the electric worm gear device, and the The turntable tray is arranged at the lower part of the reduction box positioning frame, the inner cavity of the turntable tray is tightly matched with the guide column, the reduction box positioning frame of the electric worm gear is arranged at the upper end of the turntable tray, the worm shaft hole is arranged at one side of the reduction box positioning frame, the plane bearing cavity is arranged at the lower part of the turntable tray, the plane bearing is arranged in the plane bearing cavity, the positioning plate of the turntable is arranged on the plane bearing, the two magnetic induction switch cavities are required to be provided with a magnetic induction switch; the magnet is arranged at the lower end of the turntable, and the power cord of the turntable motor is arranged under the turntable; the low-pressure casting machine is integrated with the turntable, and the low-pressure furnace lifter is arranged under the turntable; The electric mechanism includes a motor, the gearbox is connected to the lower end of the motor 5, the long worm shaft is arranged on one side of the reduction box, the worm is tightly fitted on the long worm shaft passing through the worm shaft hole, the reduction box positioning frame is arranged on the guide column, the reduction box positioning bolt is used to connect the reduction box and the reduction box positioning frame, and the worm is engaged with the worm wheel; The control mechanism includes a worm motor arranged on the reduction box, and the worm is arranged on the other side of the reduction box positioning frame; the magnetic induction switch is arranged below the plane axis, and magnets with eight equal positions are arranged above the magnetic induction switch at the lower end of the turntable. The control cabinet is arranged on one side of the low-pressure casting machine, and the PLC controller, frequency converter and contactor are arranged in the control cabinet; the turntable power line and the signal line of the magnetic induction switch are connected to the control cabinet; the PLC controller controls the speed of the motor according to the time taken for the signal emitted by the magnetic induction switch and the magnet to inductively contact. According to the production process, the turntable rotates 45 degrees each time.

2. The automatic rotating device for a low-pressure casting machine turntable according to claim 1, characterized in that: A lifter is installed on the low-pressure furnace to create a gap between the low-pressure furnace and the turntable, so that the turntable can be rotated 45 degrees or raised for sealing; the turntable is positioned by a turntable cover bearing installed on the guide column and a flat bearing in the turntable tray, so that the turntable can rotate smoothly; the worm wheel is placed in the electric worm gear device cavity installed in the turntable; the electric reducer is fixed by a reducer positioning frame installed on the guide column; the worm is placed by passing a long worm shaft through one end of the hole; the worm and the internal worm wheel are engaged to drive the turntable to rotate, so that the storage net mechanism on the turntable can automatically add the net to the motor housing mold correctly; the low-pressure casting machine can automatically and continuously remove the net and add the net, and the casting products are unmanned, which subverts the production method of low-pressure casting machine casting products that require manual operation, reduces production costs, and the use of silicon nitride molds is pollution-free and the product size is high. Precision manufacturing has laid a foundation.

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