A kind of fire hydrant valve rod automatic machining device
Technical field
The invention belongs to the machining equipment field, relate in particular to a kind of fire hydrant valve rod automatic machining device.
Background technology
In tradition fire hydrant valve rod process, need to be at valve rod periphery processing step, the bottom of step also needs machined grooves, as shown in Figure 8, needs to use many cover process equipments and multiprogramming, and the per pass program all needs manually-operated, 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 fire hydrant valve rod automatic machining device of a kind of self-feeding, automatic clamping, automatic processing.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of fire hydrant valve rod automatic machining device, comprise 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, main shaft free to rotate is installed on described main spindle box, be provided with the through hole that can pass through for valve rod 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 described drive rod near middle and workbench are hinged by 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 extend to the guiding projection near rotating disk other end position near rotating disk one end position, and 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 comprises the cutter base that can slide on workbench, is arranged on the driving shaft on workbench and is arranged on the cam that drives the cutter base sliding on driving shaft, described driving shaft one end is provided with driving wheel, and described cutter base is provided with the guide rod suitable with cam; The width that on described cam, the difference of the minimum place of radius maximum and radius radius is valve rod periphery step to be processed, cam from radius minimum start to rotate after one week gradually arrive the radius maximum; Also be provided with the base return mechanism that drives cutter base return on described workbench;
Described grooving mechanism comprises the cutter upper bracket that can slide on the cutter base, is arranged on the impeller-hub on workbench and is arranged on the actuating cam that drives the cutter upper bracket to slide on impeller-hub; The groove depth that the difference of the minimum place of described actuating cam radius maximum and radius radius is the valve rod peripheral groove; Drive the support return mechanism of cutter upper bracket return on described cutter base; Cutting tool installation manner is on the cutter upper bracket; Described driving shaft and impeller-hub are in transmission connection.
Described guiding projection has two, occupies respectively half cycle space of chuck periphery, and the feeding frequency of the rotational frequency of rotating disk, feed mechanism and cam rotational frequency are 1:2:2.
Described position-limit mechanism comprises that mounting disc and the near middle the taking over a business, be sleeved on main shaft that are fixedly mounted on main shaft are hinged on the claw in mounting disc, it is described that to 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 are suitable, and the suitable end face of described movable disk and claw is cambered surface.
Described driving shaft is mutually vertical with impeller-hub, and connects by Bevel Gear Drive.
Described base return mechanism is return spring, and described return spring one end is connected with the 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 the cutter base, and the other end is connected with the cutter upper bracket, and spring is Compress Spring.
Described driving shaft is arranged on the bearing block on workbench, and described impeller-hub is arranged on the bearing block on workbench; Described guide rod contacts an end and is provided with roller with cam.
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 carrying valve rod, and described spindle nose is provided with the conveyer belt of output valve rod.
The invention has the advantages that, realize the automation of feeding, chucking and processing, do not need manpower to control, greatly improved working (machining) efficiency, reduced cost.
The accompanying drawing explanation
The structural representation that Fig. 1 is a kind of fire hydrant valve rod of the present invention automatic machining device;
The structural representation of the feed mechanism that Fig. 2 is fire hydrant valve rod automatic machining device;
The structural representation of the automatic clamping mechanism that Fig. 3 is fire hydrant valve rod automatic machining device;
The structural representation that automatically send cutter mechanism that Fig. 4 is fire hydrant valve rod automatic machining device;
The structural representation of the guiding mechanism that Fig. 5 is automatic clamping mechanism;
The structural representation of the chuck that Fig. 6 is automatic clamping mechanism;
The structural representation of the rotating disk that Fig. 7 is automatic clamping mechanism;
The structural representation that Fig. 8 is the valve rod after machining;
Mark in above-mentioned figure is: 1, workbench, 2, crank, 3, connecting rod, 4, push rod, 5, guide groove, 6, driving wheel, 7, driving shaft, 8, cam, 9, the 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.
The specific embodiment
The structural representation that Fig. 1 is a kind of fire hydrant valve rod of the present invention automatic machining device, comprise 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 shaft free to rotate 16 is installed on main spindle box 15, be provided with the through hole that can pass through for valve rod in main shaft 16, an 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, drive rod 21 near middles and workbench 1 are hinged by column, and drive rod 21 1 ends are 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 positions;
Automatic clamping mechanism also comprises guiding mechanism, as shown in Fig. 5 and Fig. 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 peripheries are provided with along rotating disk 22 periphery coilings, from extend to the guiding projection 23 near rotating disk 22 other end positions near rotating disk 22 1 end positions, and the other end of drive rod 21 is provided with the guide block suitable with guiding projection 23;
Automatically send cutter mechanism to comprise step organisation of working and grooving mechanism, as shown in Figure 4, the step organisation of working comprises the cutter base 9 that can slide on workbench 1, is arranged on the driving shaft 7 on workbench 1 and is arranged on driving shaft 7 cam 8 that drives cutter base 9 to slide, driving shaft 7 one ends are provided with driving wheel 6, and cutter base 9 is provided with the guide rod 13 suitable with cam 8; The width that on cam 8, the difference of the minimum place of radius maximum and radius radius is valve rod periphery step to be processed, cam 8 from radius minimum start to rotate after one week gradually arrive the radius maximum; Also be provided with the base return mechanism that drives cutter base 9 returns on workbench 1;
Grooving mechanism comprises the cutter upper bracket 10 that can slide on cutter base 9, is arranged on the impeller-hub 11 on workbench 1 and is arranged on impeller-hub 11 actuating cam 12 that drives cutter upper bracket 10 to slide; The groove depth that the difference of the minimum place of actuating cam 12 radius maximums and radius radius is the valve rod peripheral groove; Drive the support return mechanism of cutter upper bracket return on cutter base 9; 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 respectively half cycle space of chuck 25 peripheries, and the feeding frequency of the rotational frequency of rotating disk 22, feed mechanism and cam 8 rotational frequencies are 1:2:2.
Position-limit mechanism comprises that mounting disc 19 and the near middle of taking over a business 20, being sleeved on main shaft 16 that are fixedly mounted on main shaft 16 are hinged on the claw 18 in mounting disc 19, as shown in Figure 6, taking over a business 20 both ends of the surface is inclined-plane, claw 18 1 ends with take over a business 20 suitable, the other end and movable disk 17 are suitable, and the suitable end face of movable disk 17 and claw 18 is cambered surface.
Driving shaft 7 is mutually vertical with impeller-hub 11, and connects by Bevel Gear Drive.
The base return mechanism is return spring 14, and return spring 14 1 ends are connected with cutter base 9, and the other end is connected with workbench 1, and return spring 14 is extension spring; The support return mechanism is spring, and spring one end is connected with cutter base 9, and the other end is connected with the 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 an end with cam 8 and is provided with roller.Cam 8 radius maximums are 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 speeds and cam 8 rotating ratios are 1:1.Use same drive motors to drive rotating disk 22 and cam 8, the synchronism of system is higher.
Guide groove 5 tops are provided with the conveyer belt of carrying valve rod, and main shaft 16 ends are provided with the conveyer belt of output valve rod.
Feeding process is: crank 2 rotates under the drive of motor 26, drivening rod 3 motions, and connecting rod 3 drives push rod 4, and push rod 4 is spacing lower reciprocating guide groove 5, thereby constantly completes feeding.
Clamping process is: feed mechanism completes feeding, rotating disk 22 rotates, driving drive rod 21 by guiding projection 23 rotates, the chuck 25 of drive rod 21 ends drives movable disk 17 phase left movements, movable disk 17 1 ends are cambered surface, cambered surface drives claw 18 to tighten 20 inclined-plane, thereby chucking takes over a business 20, rotating disk 22 is rotated further, apply a power left to main shaft 16, thereby pull main shaft 16 to left movement, the clamping body of main shaft 16 right-hand members is drawn into main spindle box 15, thereby clamping body shrinks 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 returns, tighten and remove, and feed mechanism starts feeding.
Send the cutter process to be: cam 8 contacts with guide rod 13, and cam 8 rotates from minimum beginning of radius, slowly rotates and within one week, arrives the radius maximum, thereby promote 9 feedings of cutter base; Driving shaft 7 drives impeller-hub 11 rotations simultaneously, actuating cam 12 on impeller-hub 11 also rotates thereupon, when cutter base 9 is fed to valve rod and needs the machined grooves position, actuating cam 12 turns to radius increase place, promote 10 feedings of cutter upper bracket, thereby complete the processing of groove, after Pocket Machining completes, actuating cam 12 turns to the minor radius place, and cutter upper bracket 10 is return under the promotion of spring; After machining, cam 8 arrives the radius maximum, from the radius maximum, rotates to the radius minimum afterwards, and cutter base 9 is return under the pulling of return spring 14, and a processing stroke completes.Other processing strokes of follow-up continuation.
After adopting such structure, realize the automation of feeding, chucking and processing, do not need manpower to control, greatly improved working (machining) efficiency, reduced cost.
The above is exemplarily described the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.