A kind of hydrant valve rod automatic machining device
Technical field
The invention belongs to machining equipment field, particularly relate to a kind of hydrant valve rod automatic machining device.
Background technology
In conventional fire hydrant valve rod process, need at stem outer circumference processing step, the bottom of step also needs machined grooves, and as shown in Figure 8, need to use many cover process equipments and multiprogramming, per pass program all needs manual operation, and working (machining) efficiency is low, and cost is high.
Summary of the invention
Technical problem to be solved by this invention is to provide the hydrant valve rod automatic machining device of a kind of self-feeding, automatic clamping, processing automatically.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of hydrant valve rod automatic machining device, comprises workbench, and described workbench is provided with feed mechanism, automatic clamping mechanism and automatically send cutter mechanism,
Described feed mechanism is three linkages, comprises crank, connecting rod and push rod, and described connecting rod two ends are hinged with crank, push rod respectively, and described workbench is provided with the guide groove that can slide for push rod, also comprise the motor that driving crank rotates;
Described automatic clamping mechanism comprises main spindle box, described main spindle box is provided with main shaft free to rotate, the through hole that can pass through for valve rod is provided with in described main shaft, one end of described main shaft is provided with clamping body, described main shaft is provided with the movable disk that can be free to slide, and also comprises drive rod, and it is hinged that described drive rod near middle and workbench pass through column, drive rod one end is provided with the chuck suitable with movable disk, and described movable disk is connected by thrust bearing with chuck;
Described main shaft is provided with the position-limit mechanism for restraint dish position;
Described automatic clamping mechanism also comprises guiding mechanism, described guiding mechanism comprises transmission case, be installed in rotation on the rotating disk on transmission case and drive the driving mechanism of rotating disk, described rotating disk periphery is provided with along the coiling of rotating disk periphery, from the guiding projection extended near position, rotating disk one end near rotating disk other end position, the other end of described drive rod is provided with the guide block suitable with guiding projection;
The described cutter mechanism that automatically send comprises step organisation of working and grooving mechanism, described step organisation of working comprise can slide on the table cutter base, driving shaft is on the table set and the cam driving cutter base sliding is on the driving shaft set, described driving shaft one end is provided with driving wheel, and described cutter base is provided with the guide rod suitable with cam; On described cam, the difference of radius maximum and radius minimum place radius is the width of stem outer circumference step to be processed, and cam arrives radius maximum rotate one week from the minimum place of radius after gradually; Described workbench is also provided with the base return mechanism driving cutter base return;
Described grooving mechanism comprise can slide on cutter base cutter upper bracket, impeller-hub is on the table set and is arranged on the actuating cam that impeller-hub drives cutter upper bracket to slide; The difference of described actuating cam radius maximum and radius minimum place radius is the groove depth of stem outer circumference groove; Described cutter base drives the support return mechanism of cutter upper bracket return; Cutting tool installation manner is on cutter upper bracket; Described driving shaft and impeller-hub are in transmission connection.
Described guiding projection has two, occupies half cycle space of rotating disk periphery respectively, and the rotational frequency of rotating disk, the feeding frequency of feed mechanism and cam rotational frequency are 1:2:2.
Described position-limit mechanism comprises and is fixedly mounted on taking over a business on main shaft, is sleeved on mounting disc on main shaft and near middle and is hinged on claw in mounting disc, described take over a business both ends of the surface be inclined-plane, described claw one end with take over a business suitable, the other end and movable disk suitable, described movable disk and the suitable end face of claw are cambered surface.
Described driving shaft and impeller-hub are mutually vertical, and are connected by Bevel Gear Drive.
Described base return mechanism is return spring, and described return spring one end is connected with cutter base, and the other end is connected with workbench, and described return spring is extension spring; Described support return mechanism is spring, and described spring one end is connected with cutter base, and the other end is connected with cutter upper bracket, and spring is Compress Spring.
Described driving shaft is installed on bearing block on the table, and described impeller-hub is installed on bearing block on the table; Described guide rod and cam contact one end are provided with roller.
Described driving wheel is sprocket wheel, and is connected with drive motors by chain, and drive motors is connected with transmission case by chain, and rotary speed and cam rotating ratio are 1:1.
Described top of guide slot is provided with the conveyer belt of conveying valve rod, and described spindle nose is provided with the conveyer belt exporting valve rod.
The invention has the advantages that, realize the automation of feeding, clamping and processing, do not need manpower to control, substantially increase working (machining) efficiency, reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hydrant valve rod automatic machining device of the present invention;
Fig. 2 is the structural representation of the feed mechanism of hydrant valve rod automatic machining device;
Fig. 3 is the structural representation of the automatic clamping mechanism of hydrant valve rod automatic machining device;
Fig. 4 is the structural representation automatically sending cutter mechanism of hydrant valve rod automatic machining device;
Fig. 5 is the structural representation of the guiding mechanism of automatic clamping mechanism;
Fig. 6 is the structural representation of the chuck of automatic clamping mechanism;
Fig. 7 is the structural representation of the rotating disk of automatic clamping mechanism;
Fig. 8 is the structural representation of the valve rod after machining;
Mark in above-mentioned figure is: 1, workbench, and 2, crank, 3, connecting rod, 4, push rod, 5, guide groove, 6, driving wheel, 7, driving shaft, 8, cam, 9, cutter base, 10, cutter upper bracket, 11, impeller-hub, 12, actuating cam, 13, guide rod, 14, return spring, 15, main spindle box, 16, main shaft, 17, movable disk, 18, claw, 19, mounting disc, 20, take over a business, 21, drive rod, 22, rotating disk, 23, guiding projection, 24, transmission case, 25, chuck.
Detailed description of the invention
Fig. 1 is the structural representation of a kind of hydrant valve rod automatic machining device of the present invention, comprises workbench 1, and workbench 1 is provided with feed mechanism, automatic clamping mechanism and automatically send cutter mechanism,
Feed mechanism is three linkages, as shown in Figure 2, comprises crank 2, connecting rod 3 and push rod 4, and connecting rod 3 two ends are hinged with crank 2, push rod 4 respectively, and workbench 1 is provided with the guide groove 5 that can slide for push rod 4, also comprise the motor 26 that driving crank 2 rotates;
Automatic clamping mechanism comprises main spindle box 15, as shown in Figure 3, main spindle box 15 is provided with main shaft 16 free to rotate, be provided with the through hole that can pass through for valve rod in main shaft 16, one end of main shaft 16 is provided with clamping body, and main shaft 16 is provided with the movable disk 17 that can be free to slide, also comprise drive rod 21, it is hinged that drive rod 21 near middle and workbench 1 pass through column, and drive rod 21 one end is provided with the chuck 25 suitable with movable disk 17, and movable disk 17 is connected by thrust bearing with chuck 25;
Main shaft 16 is provided with the position-limit mechanism for restraint dish 17 position;
Automatic clamping mechanism also comprises guiding mechanism, as shown in figure 5 and figure 7, guiding mechanism comprises transmission case 24, be installed in rotation on the rotating disk 22 on transmission case 24 and drive the driving mechanism of rotating disk 22, rotating disk 22 periphery is provided with along the coiling of rotating disk 22 periphery, from the guiding projection 23 extended near position, rotating disk 22 one end near rotating disk 22 other end position, the other end of drive rod 21 is provided with the guide block suitable with guiding projection 23;
Automatically cutter mechanism is sent to comprise step organisation of working and grooving mechanism, as shown in Figure 4, step organisation of working comprise can slide on workbench 1 cutter base 9, be arranged on the driving shaft 7 on workbench 1 and be arranged on the cam 8 that driving shaft 7 drives cutter base 9 to slide, driving shaft 7 one end is provided with driving wheel 6, and cutter base 9 is provided with the guide rod 13 suitable with cam 8; On cam 8, the difference of radius maximum and radius minimum place radius is the width of stem outer circumference step to be processed, and cam 8 arrives radius maximum rotate one week from the minimum place of radius after gradually; Workbench 1 is also provided with the base return mechanism driving cutter base 9 return;
Grooving mechanism comprise can slide on cutter base 9 cutter upper bracket 10, be arranged on the impeller-hub 11 on workbench 1 and be arranged on the actuating cam 12 that impeller-hub 11 drives cutter upper bracket 10 to slide; The difference of actuating cam 12 radius maximum and radius minimum place radius is the groove depth of stem outer circumference groove; Cutter base 9 drives the support return mechanism of cutter upper bracket return; Cutting tool installation manner is on cutter upper bracket 10; Driving shaft 7 and impeller-hub 11 are in transmission connection.
Guiding projection 23 has two, occupies half cycle space of rotating disk 22 periphery respectively, and the rotational frequency of rotating disk 22, the feeding frequency of feed mechanism and cam 8 rotational frequency are 1:2:2.
Position-limit mechanism comprises and is fixedly mounted on taking over a business 20, be sleeved on mounting disc 19 on main shaft 16 and near middle and be hinged on claw 18 in mounting disc 19 on main shaft 16, as shown in Figure 6, taking over a business 20 both ends of the surface is inclined-plane, claw 18 one end with take over a business 20 suitable, the other end and movable disk 17 suitable, movable disk 17 end face suitable with claw 18 is cambered surface.
Driving shaft 7 is mutually vertical with impeller-hub 11, and is connected by Bevel Gear Drive.
Base return mechanism is return spring 14, and return spring 14 one end is connected with cutter base 9, and the other end is connected with workbench 1, and return spring 14 is extension spring; Support return mechanism is spring, and spring one end is connected with cutter base 9, and the other end is connected with cutter upper bracket, and spring is Compress Spring.
Driving shaft 7 is arranged on the bearing block on workbench 1, and impeller-hub 11 is arranged on the bearing block on workbench 1; Guide rod 13 contacts one end with cam 8 and is provided with roller.Cam 8 radius maximum is connected by inclined-plane with the minimum place of radius.
Driving wheel 6 is sprocket wheel, and is connected with drive motors by chain, and drive motors is connected with transmission case 24 by chain, and rotating disk 22 rotating speed and cam 8 rotating ratio are 1:1.Use same drive motors to drive rotating disk 22 and cam 8, the synchronism of system is higher.
Be provided with the conveyer belt of conveying valve rod above guide groove 5, main shaft 16 end is provided with the conveyer belt exporting valve rod.
Feeding process is: crank 2 rotates under the drive of motor 26, and drivening rod 3 moves, and connecting rod 3 drives push rod 4, spacing lower reciprocating at guide groove 5 of push rod 4, thus constantly completes feeding.
Clamping process is: feed mechanism completes feeding, rotating disk 22 rotates, drive rod 21 is driven to rotate by guiding projection 23, the chuck 25 of drive rod 21 end drives movable disk 17 phase left movement, movable disk 17 one end is cambered surface, cambered surface drives claw 18 to clamp the inclined-plane of 20, thus clamping takes over a business 20, rotating disk 22 is rotated further, a power is left applied to main shaft 16, thus pulling main shaft 16 to left movement, the clamping body of main shaft 16 right-hand member is drawn into main spindle box 15, and clamping body shrinks thus clamping workpiece.When rotating disk 22 is rotated further, guide rod 13 is from the end slippage of guiding projection 23, and drive rod 21 return, clamping is removed, and feed mechanism starts feeding.
Send cutter process to be: cam 8 contacts with guide rod 13, and cam 8 rotates from the minimum place of radius, slowly rotate and arrive radius maximum in one week, thus the feeding of promotion cutter base 9; Driving shaft 7 drives impeller-hub 11 to rotate simultaneously, actuating cam 12 on impeller-hub 11 also rotates thereupon, cutter base 9 be fed to valve rod need machined grooves position time, actuating cam 12 turns to radius increase place, promote the feeding of cutter upper bracket 10, thus complete the processing of groove, after Pocket Machining completes, actuating cam 12 turns to minor radius place, and cutter upper bracket 10 is return under the promotion of spring; After machining, cam 8 arrives radius maximum, rotates minimum to radius afterwards, cutter base 9 return under the pulling of return spring 14 from radius maximum, and a processing stroke completes.Other processing strokes of follow-up continuation.
After adopting such structure, realize the automation of feeding, clamping and processing, do not need manpower to control, substantially increase working (machining) efficiency, reduce cost.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.