Drill jig equipment for boring step crankshaft end holes
Technical field
The invention belongs to mechanical grinding field more particularly to a kind of drilling jig tools for workpiece.
Background technology
With the fast development of China's mechanical industry, market increasingly increases the demand of various types of accessories, especially
It is axis class accessory, multi-diameter shaft is originally widely used in because it is with easy-to-mount characteristic in all kinds of machineries.Multi-diameter shaft is producing
It drills in the process, the precision of drilling will have a direct impact on multi-diameter shaft subsequent use effect.
The patent document of Publication No. CN101966602A discloses a kind of brill step crankshaft end holes drill jig device, includes mould
Plate, left clamping jaw, right clamping jaw, template are positioned on ladder crankshaft flange end face, and ladder crankshaft flange end face is corresponded in template and is fixed
Several drill bushings are installed, corresponding ladder bent axle shoulder end face is installed with several lengthening drill bushings, and the template lower part is tubulose
Be open the spring that rises, and is sleeved in the outer circle of ladder crankshaft flange end, and encircle and be fixedly clamped by left clamping jaw, right clamping jaw.It will when work
Ladder bent axle shaft end is disposed vertically upwards, and template is positioned on ladder crankshaft flange end face, and the template lower openings spring that rises is sleeved on rank
In the outer circle of terraced crankshaft flange end, the through-hole of right clamping jaw is passed through with housing screw, the screw hole of left clamping jaw is tightened against, makes template and ladder
Crankshaft flange end outer circle is fixed, and can then operate drill bit along lengthening drill bushing and drill bushing pilot hole.Drill bushing is lengthened to be used for being oriented to
Drill bit bores multi-diameter shaft ladder shoulder end-face hole, and drill bushing is used for starter and bores crankshaft flange end-face hole, and clamped one time can complete rank
The porous processing of two layers of step of terraced axis.
The drill jig device can improve the drilling effect to multi-diameter shaft to a certain extent, but in boring procedure, rank
Terraced axis can generate reaction force to drill bit, this reaction force can make device generate certain vibration, and device is caused to be easy to loosen,
This greatly reduces the precision of drilling.
Invention content
The purpose of the present invention is to provide a kind of drill jig equipment for boring step crankshaft end holes, are being drilled with solving multi-diameter shaft
Harmful effect of the reaction force generated in the process to device.
In order to achieve the above object, base case of the invention provides a kind of drill jig equipment for boring step crankshaft end holes,
Including clamp device, the clamp device is combined with drilling equipment;The clamp device includes the positioning being set on multi-diameter shaft
Ring block, the locating ring block include the left locating ring block being mutually clamped and right locating ring block, the left locating ring block and right positioning
Ring block is pushed against by anchor ear on multi-diameter shaft;It is uniformly provided with several grooves in locating ring block, is fixed in the groove flexible
Part, the elastic component is interior through the interlocking bar for having bottom belt sawtooth, and the working end of elastic component is fixed with static connection in the linkage
Groove is stretched out at limiting plate on bar, interlocking bar both ends, and the one end of interlocking bar with sawtooth is engaged with gear, and the bottom of the gear is nibbled
Closing has the follower plate of top tape sawtooth, and the follower plate is hook-shaped and is provided with threaded hole, and follower plate is slidably connected on multi-diameter shaft;
The drilling equipment includes pedestal, and the pedestal includes the left part and right part being mutually clamped;Pedestal is pushed against ladder by anchor ear
Several drill bits driven by driving device are installed, running through on pedestal there are several to be located at drill bit side on axis, on pedestal
Trip bolt, the trip bolt are closed with the corresponding threaded holes on follower plate;The outer end static connection of pedestal has hook plate, the hook plate
It offsets with the one end of interlocking bar far from gear.
The principle of this base case is:First, follower plate is mounted on the outer wall of multi-diameter shaft, then respectively by left positioning
Ring block and right locating ring block are placed on the both sides of multi-diameter shaft, and the sawtooth on gear and follower plate is made to be intermeshed, then by left positioning
Ring block and right locating ring block are connected together, and locating ring block is pushed against on multi-diameter shaft by anchor ear.Then respectively by pedestal
Left part is placed on the both sides of multi-diameter shaft with right part, keeps the trip bolt on pedestal opposite with the threaded hole on follower plate, and rotation is tight
Gu screw makes trip bolt cooperate and push against with threaded hole, then the left part of pedestal is connected together with right part, by embracing
Pedestal is pushed against on multi-diameter shaft by hoop.
Then start motor, drill bit is made to start to movement at the shaft shoulder of multi-diameter shaft and drill to multi-diameter shaft, drill bit exists
During to multi-diameter shaft force drilling, multi-diameter shaft can also be given and bore first reaction force, this reaction force is passed by drill bit
It passs pedestal and hooks plate, make pedestal and hook plate by the power along remotely located ring Block direction, hook this movement tendency of plate
Interlocking bar is passed to, interlocking bar is made also to generate same movement tendency, to generate the trend rotated clockwise, tooth with moving gear
The movement tendency of wheel drives follower plate to generate the movement tendency along locating ring Block direction, to make follower plate begin in boring procedure
Multi-diameter shaft is pushed against eventually.
The advantageous effect of this base case is:
(1)This programme is fixed multi-diameter shaft using the reaction force of multi-diameter shaft in boring procedure, clever structure,
Driving equipment need not additionally be increased, the cost of multi-diameter shaft drilling is greatly reduced, improve the efficiency of drilling;
(2)This programme is constantly fixed multi-diameter shaft in boring procedure, improves the precision of multi-diameter shaft drilling;
(3)This programme moves interlocking bar generation movement tendency by hooking strip, and passes through interlocking bar and gear drive follower plate
Movement tendency is generated, multi-diameter shaft is fixed, gear is substantially increased with engaging for sawtooth for multi-diameter shaft to be fixed
Driving force stability;
(4)This programme limits interlocking bar by the cooperation of elastic component and limiting plate, prevents interlocking bar movement excessive
Clamp device is set to lose fastening function;
(5)Locating ring block and pedestal are clamped respectively by hooping structure, realize that it reaches abutting with multi-diameter shaft
It is good and stable to push against effect for state;
(6)By the cooperation of trip bolt and threaded hole, drilling equipment and clamp device are fixed before drilling, carried
High fitness between drilling equipment and clamp device;
(7)Several drill bits are installed, for needing to process the multi-diameter shaft in multiple holes, this programme can be simultaneously to rank on pedestal
Terraced axis carries out the processing in multiple holes, improves the working efficiency of drilling.
Scheme two:This is preferred, the face surface roughness Ra that the locating ring block is contacted with multi-diameter shaft of basic scheme<
0.1μm.Surface roughness Ra<0.1 μm of locating ring block surface is relatively smooth, and locating ring block can be prevented right during the work time
Multi-diameter shaft causes to wear.
Scheme three:This is the preferred of basic scheme, lanyard is cased on the trip bolt, the lanyard is fixed on pedestal
On.Lanyard can prevent trip bolt from falling in the handling process, make troubles to the use of equipment.
Scheme four:This is preferred for scheme three, and the tip of the trip bolt and the tip of drill bit are socketed with protective jacket.
Protective jacket can prevent the tip of trip bolt and the tip of drill bit from accidentally injuring to worker, and trip bolt and drill bit are when unused
It is long-term to shelve in air, it is easy oxidation by air and influences service life, protective jacket can be by trip bolt and drill bit and air
Isolation, prevents from being aoxidized.
Scheme five:This is the preferred of basic scheme, and the cavity for accommodating follower plate is provided on the pedestal.Due to driven
Plate is not affixed in equipment, is easily lost after the completion of use, and the cavity on pedestal can then accommodate follower plate, prevent follower plate
Loss.
Scheme six:This is the preferred of basic scheme, and the elastic component is compression spring.Compression spring can be limiting plate and interlocking bar
It resets and restoring force is provided.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of drill jig equipment of the present invention for boring step crankshaft end holes.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail:
Reference numeral in Figure of description includes:Multi-diameter shaft 1, locating ring block 2, groove 3, limiting plate 4, interlocking bar 5, bullet
Property part 6, gear 7, follower plate 8, pedestal 9, trip bolt 10, drill bit 11, anchor ear 12, hook plate 13.
Embodiment is substantially as shown in Fig. 1:
Drill jig equipment for boring 1 stomidium of multi-diameter shaft, is mainly made of clamp device and drilling equipment.Clamp device is by fixed
Position ring block 2, limiting plate 4, elastic component 6, interlocking bar 5, gear 7 and follower plate 8 are constituted.Locating ring block 2 is by left locating ring block 2 and the right side
Locating ring block 2 is constituted, and left locating ring block 2 and right locating ring block 2 are mutually clamped and are pushed against on multi-diameter shaft 1 by anchor ear 12.It is fixed
The face surface roughness Ra that position ring block 2 is contacted with multi-diameter shaft 1<0.1 μm, such 2 surface of locating ring block is relatively smooth, Neng Goufang
Only locating ring block 2 causes to wear to multi-diameter shaft 1 during the work time.Groove 3, the right end weldering of groove 3 are provided in the middle part of locating ring
It is connected to elastic component 6, elastic component 6 is compression spring, and left end and the limiting plate 4 of compression spring weld, and limiting plate 4 is welded in interlocking bar 5.Linkage
Bar 5 is applied in compression spring and groove 3 is stretched out at both ends, and the left end of interlocking bar 5 offsets with plate 13 is hooked, the right end lower surface of interlocking bar 5
It is machined with sawtooth.It is engaged with gear 7 below the right end of interlocking bar 5, the upper surface of follower plate 8 is machined with sawtooth, the lower section of gear 7
It is engaged with follower plate 8;Follower plate 8 is in hook-shaped, and the right end of follower plate 8 is provided with threaded hole.
Drilling equipment is made of pedestal 9, hook plate 13, drill bit 11, trip bolt 10.Pedestal 9 is made of left part and right part, left
Portion and right part are mutually clamped and are pushed against on multi-diameter shaft 1 by anchor ear 12.Several drill bits 11 are uniformly installed on pedestal 9, are bored
First 11 are driven by motor.Several trip bolts 10 for being located at 11 side of drill bit, the screw thread on follower plate 8 are also extended through on pedestal 9
Hole is matched with trip bolt 10.Lanyard is cased on trip bolt 10, lanyard is sleeved on pedestal 9, and lanyard can prevent fastening spiral shell
Nail 10 is fallen in the handling process, is made troubles to the use of equipment.The tip of trip bolt 10 and the tip of drill bit 11 cover
It is connected to protective jacket, protective jacket can prevent the tip of trip bolt 10 and the tip of drill bit 11 from accidentally injuring to worker, can will also fasten
Screw 10 and drill bit 11 and air exclusion, prevent from being aoxidized.The outer end of pedestal 9 is welded with plate 13 is hooked, and hooks the left end and connection of plate 13
Lever 5 offsets.It is provided with the cavity for accommodating follower plate 8 on pedestal 9, prevents the loss of follower plate 8.
When specific works, first, the cavity on pedestal 9 is opened, follower plate 8 is taken out;Then follower plate 8 is mounted on rank
On the outer wall of terraced axis 1, left locating ring block 2 and right locating ring block 2 are placed on to the both sides of multi-diameter shaft 1 respectively, make gear 7 with it is driven
Sawtooth intermeshing on plate 8, then left locating ring block 2 and right locating ring block 2 is connected together, by anchor ear 12 by locating ring
Block 2 is pushed against on multi-diameter shaft 1.The left part of pedestal 9 and right part are then placed on to the both sides of multi-diameter shaft 1 respectively, made on pedestal 9
Trip bolt 10 is opposite with the threaded hole on follower plate 8, and rotation trip bolt 10 makes trip bolt 10 cooperate with threaded hole
And push against, then the left part of pedestal 9 is connected together with right part, pedestal 9 is pushed against on multi-diameter shaft 1 by anchor ear 12.
Then the protective jacket of trip bolt 10 and drill bit 11 is removed, starts motor, drill bit 11 is made to start the axis to multi-diameter shaft 1
It is mobile and drill to multi-diameter shaft 1 at shoulder, drill bit 11 exert a force to multi-diameter shaft 1 drill during, multi-diameter shaft 1 can also be given and bore
First 11 1 reaction forces, this reaction force by drill bit 11 pass to pedestal 9 and hook plate 13, make pedestal 9 and hook plate 13 by
To a power to the right, this movement tendency for hooking plate 13 passes to interlocking bar 5, so that interlocking bar 5 is also generated same movement and becomes
Gesture, to generate the trend rotated clockwise with moving gear 7, the movement tendency of gear 7 drives the movement of the generation of follower plate 8 to the left
Trend, to make follower plate 8 push against multi-diameter shaft 1 always in boring procedure.Drilling equipment can continue real estate in boring procedure
Raw reaction force, and follower plate 8 pushes against multi-diameter shaft 1 using this reaction force, to play fixed step axis 1, improves drilling
The effect of precision.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific implementation mode can be used for explaining the content of claim.