CN208262446U - crankshaft polishing machine - Google Patents

Abstract

The present utility model application belongs to polissoir technical field, specifically disclose a kind of crankshaft polishing machine, including workbench, motor, crossbeam, first thimble and the second thimble, the workbench is equipped with column, cylinder, support rod, the piston rod of the cylinder is equipped with supporting table, the support rod top is equipped with the first strut, first grinding wheel, second strut and the second grinding wheel, slide opening is offered in the middle part of the column, sliding block is equipped in the slide opening, connecting rod is hinged on the sliding block, described connecting rod one end hinge splint, two are equipped with torsional spring between clamping plate and connecting rod, the torsional spring is abutted together two clamping plates in nature, the column is equipped with multiple ventholes being connected to slide opening close to the side of motor along its length.The utility model is mainly used for polishing crankshaft, solves the problems, such as that scrap is easy to be splashed to centre-drilling hole to influence grinding effect when polishing crankshaft.

Description

Crankshaft polishing machine

Technical field

The utility model belongs to polissoir technical field, specifically discloses a kind of crankshaft polishing machine.

Background technique

Crankshaft mainly includes trunnion and rod journal, and crankshaft is most important component in engine.It bears connecting rod and passes The power come, and be transformed into torque and exported by crankshaft and other attachmentes on engine is driven to work.Crankshaft is by rotation matter Centrifugal force, the gas inertia power of mechanical periodicity and the collective effect of reciprocal inertia force of amount make crankshaft bear flexion torsion load Effect.Therefore it is required that crankshaft has enough strength and stiffness, journal surface need are wear-resisting, work is uniform, balance is good.

Numerically controlled lathe is widely used in crankshaft roughing, in numerical control the sophisticated equipments such as milling machine, numerical control turn-broaching machine to trunnion, even Bar axle journal carries out numerical control turning, interior Milling Process, effectively reduces the deflection of Crankshaft Machining in this way.Crankshaft needs after roughing Will be using polishing grinding, during the polishing process, the iron filings of generation are usually broken or powdered, these scrap iron from splashing to folder The centre bore of tool is top or workpiece center hole comes with iron filings, will result in positioning surface and centre bore contact is bad, processing Crankshaft outer circle just has bounce.In these cases, it is easy to make that crankshaft is scrapped or polishing effect is overproof.

Utility model content

The purpose of this utility model is to provide a kind of crankshaft polishing machines, and scrap is easy to be splashed to when solving to polish crankshaft The problem of centre-drilling hole is to influence grinding effect.

In order to achieve the above object, the base case of the utility model are as follows: crankshaft polishing machine, including workbench, the work Make platform equipped with column, the column top is equipped with crossbeam, and the crossbeam is equipped with the first thimble being rotatablely connected with it, described Workbench is equipped with the cylinder that piston rod is arranged upwards, and the piston rod of the cylinder is equipped with supporting table, sets in the supporting table There is the motor that output shaft is arranged upwards, the output shaft of the motor is equipped with the second coaxial thimble, the workbench position Support rod is equipped in the side of motor, the support rod top is equipped with perpendicular and the first strut for being slidably connected, and described the One strut is equipped with the first grinding wheel for being rotatablely connected with it, the lower part of the support rod be equipped with it is perpendicular and be slidably connected the Two struts, second strut are equipped with the second grinding wheel being rotatablely connected with it, first strut and the second strut and branch Spring is equipped between strut；Horizontal slide opening is offered in the middle part of the column, is equipped with it slidingly and sealingly in the slide opening The sliding block of connection, is hinged with connecting rod on the sliding block, and the one end of the connecting rod far from sliding block is hingedly there are two the clamping plate of arc, and two Torsional spring is equipped between a clamping plate and connecting rod, the torsional spring is abutted together two clamping plates in nature, and the column leans on The side of nearly motor is equipped with multiple ventholes being connected to slide opening along its length, is equipped between the slide opening and venthole to out First check valve of the outer one-way conduction of stomata, the slide opening bottom is equipped with the second one-way valve of the one-way conduction into slide opening.

The working principle of this base case is: before polishing crankshaft, one end of crankshaft being first placed on the second thimble On, start cylinder, the piston rod for controlling cylinder stretches out, and the other end of crankshaft is resisted against on the first thimble；With clamping plate by crankshaft Rod journal clamping, the first grinding wheel and the second grinding wheel be resisted against on the trunnion of crankshaft, starts motor, the output of motor Axis rotation drives the rotation of the first thimble, and the rotation of the first thimble drives crank rotation, and when crank rotation drives the first grinding wheel and the The rotation of two grinding wheels, the first grinding wheel and the second grinding wheel polish to crankshaft.Drive connecting rod mobile when rod journal rotates, Connecting rod is mobile to push sliding block to move into slide opening, pushes the air in slide opening by venthole to song when sliding block is moved into slide opening Axis is cleared up, and air can prevent scrap from falling on crankshaft by gas hole.

The beneficial effect of this base case is:

(1) this programme can complete polishing by carrying out primary clamping to crankshaft, clamping when reducing polishing to crankshaft Number saves the time, improves grinding efficiency；

(2) when polishing crankshaft, sliding block can be pushed mobile by rod journal band movable slider movement, sliding block movement can push away Dynamic air clears up crankshaft surface by venthole, it is therefore prevented that scrap drops into centre bore；

(3) it by the first check valve of setting and second one-way valve, can prevent from preventing scrap from entering cunning when polishing crankshaft In hole, convenient for keeping the present apparatus to operate normally.

Compared with prior art, operating procedure is few when the present apparatus polishes to crankshaft, can be to crankshaft surface while polishing Scrap cleared up, while preventing scrap to be deposited in crankshaft surface and polishing had an impact.

Further, the support rod is slidably connected with workbench, and the workbench is equipped with to be determined for positioning support bar Position portion.It can polish the crankshaft of different model by adjusting the position of support rod, increase the scope of application of equipment.

Further, the clamping plate inner wall is equipped with the frosted layer for polishing.When setting is in this way convenient for crank rotation, clamping plate Polishing grinding can be carried out to rod journal, accelerate polishing grinding efficiency.

Further, the side that the column is located at slide opening is hinged with push plate, and mandril, institute are equipped between the push plate and sliding block It states mandril and push plate, sliding block is hinged；Through slot is offered in the middle part of the push plate, the side of the close cylinder of the push plate, which is equipped with, to be beaten Grind layer.When the rod journal of crankshaft drives connecting rod and sliding block is mobile, sliding block movement can drive mandril to swing, and mandril swings energy band Dynamic push plate is swung, and push plate swings the air flowing for increasing crankshaft surface, it is therefore prevented that scrap is adhered to crankshaft surface.

Further, first strut and the second strut are slidably connected, and the support rod is equipped with for positioning first The locating piece of strut and the second strut.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model crankshaft polishing machine embodiment.

Specific embodiment

It is further described below by specific embodiment:

Appended drawing reference in Figure of description includes: workbench 1, column 2, crossbeam 3, the first thimble 4, the second thimble 5, electricity Machine 6, supporting table 8, support rod 9, the first strut 10, the second strut 11, the first grinding wheel 12, the second grinding wheel 13, is slided cylinder 7 Hole 14, sliding block 15, connecting rod 16, clamping plate 17, mandril 18, push plate 19, gas hole 20, vertical slot 21, sliding slot 22, the first check valve 23, Second one-way valve 24.

As shown in Figure 1, a kind of crankshaft polishing machine, including workbench 1, column 2,2 top of column are installed on the left of workbench 1 Horizontal crossbeam 3 is installed, middle part is equipped with the first thimble 4 by bearing on crossbeam 3, and it is upward that workbench 1 is equipped with piston rod The cylinder 7 of arrangement is equipped with supporting table 8 on the piston rod of cylinder 7, the motor that output shaft is arranged upwards is equipped in supporting table 8 6, the second coaxial thimble 5,5 face of the first thimble 4 and the second thimble are welded on the output shaft of motor 6.Workbench 1 Be equipped with sliding slot 22 in the right side opening of motor 6, be equipped in sliding slot 22 it is vertical have support rod 9, support rod 9 and the sliding of sliding slot 22 connect It connects；Side on workbench 1 positioned at sliding slot 22 is equipped with the positioning region for positioning support bar 9, and positioning region preferably positions spiral shell Bolt.Support rod 9 offers vertical slot 21 along its length, and the first sleeve being slidably connected and the second casing are equipped in vertical slot 21, The first strut 10 being slidably connected is installed in first sleeve, the first spring is connected between the first strut 10 and support rod 9, the The second strut 11 is slidably connected in two casings, and second spring, the first strut are connected between the second strut 11 and support rod 9 10, the second strut 11 is arranged vertically with support rod 9；The left end of first strut 10 and the second strut 11 offers mounting groove, the First grinding wheel 12 is equipped with by bearing in the mounting groove of one strut 10；The mounting groove of second strut 11 is equipped with by bearing Second grinding wheel 13；Locating piece for positioning the first strut 10 and the second strut 11 is installed in vertical slot 21.

Horizontal slide opening 14 is offered in the middle part of column 2, slide opening 14, which is set, slidably connects sliding block 15, is equipped on sliding block 15 close Seal；Connecting rod 16 is hinged on the right side of sliding block 15, hingedly there are two the clamping plate 17 of arc, two clamping plates 17 and connecting rods on connecting rod 16 right side Torsional spring is mounted between 16, torsional spring is abutted together two clamping plates 17 in nature, is machined on 17 inner wall of clamping plate Frosted layer for polishing.2 right side of column is equipped with multiple ventholes being connected to slide opening 14 along its length；Slide opening and venthole Between the first check valve 23 of the outer one-way conduction of oriented venthole is installed, the of one-way conduction in oriented slide opening is installed in slide opening bottom Two check valves 24.

The side that column 2 is located at slide opening 14 is hinged with push plate 19, and mandril 18, mandril are equipped between push plate 19 and sliding block 15 18 is hinged with push plate 19, sliding block 15；The through slot passed through for connecting rod 16, the right side processing of push plate 19 are offered in the middle part of push plate 19 There is the polishing layer for crankshaft of polishing.

When it is implemented, first one end of crankshaft is placed on the second thimble 5, start cylinder 7, controls the piston of cylinder 7 Bar stretches out, and the other end of crankshaft is resisted against on the first thimble 4；The rod journal of crankshaft is clamped with clamping plate 17, adjustment support Position of the bar 9 in sliding slot 22 is resisted against the first grinding wheel 12 and the second grinding wheel 13 on the trunnion of crankshaft.Start motor 6, the rotation of the output shaft of motor 6 drives the rotation of the first thimble 4, and the rotation of the first thimble 4 drives crank rotation, and when crank rotation drives First grinding wheel 12 and the rotation of the second grinding wheel 13, the first grinding wheel 12 and the second grinding wheel 13 polish to crankshaft.Connecting rod Drive connecting rod 16 mobile when axle journal rotates, connecting rod 16 is mobile to push sliding block 15 to move into slide opening 14, and sliding block 15 is into slide opening 14 The air in slide opening 14 is pushed to clear up by venthole crankshaft when mobile, air can prevent scrap from falling by gas hole 20 On crankshaft；In the process, sliding block 15 drives mandril 18 mobile, and mandril 18 is mobile to drive push plate 19 to swing, and push plate 19 is swung The air flowing of crankshaft surface is accelerated, the air energy of flow prevents scrap to be deposited on crankshaft.

Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence The effect and patent practicability that the utility model is implemented.

Claims (5)

1. crankshaft polishing machine, which is characterized in that including workbench, the workbench is equipped with column, and the column top is equipped with Crossbeam, the crossbeam are equipped with the first thimble being rotatablely connected with it, and the workbench is equipped with the gas that piston rod is arranged upwards Cylinder, the piston rod of the cylinder are equipped with supporting table, and the supporting table is equipped with the motor that output shaft is arranged upwards, the motor Output shaft be equipped with the second coaxial thimble, the workbench is located at the side of motor equipped with support rod, the support Bar top is equipped with the first strut that is perpendicular and being slidably connected, and first strut is equipped with the first polishing being rotatablely connected with it Wheel, the lower part of the support rod are equipped with the second strut that is perpendicular and being slidably connected, and second strut is equipped with and its turn Second grinding wheel of dynamic connection, is equipped with spring between first strut and the second strut and support rod；In the middle part of the column Horizontal slide opening is offered, the sliding block slidingly and sealingly connecting with it is equipped in the slide opening, is hinged with connecting rod on the sliding block, Hingedly there are two the clamping plate of arc, two are equipped with torsional spring, the torsion between clamping plate and connecting rod for the one end of the connecting rod far from sliding block Spring is abutted together two clamping plates in nature, the column close to the side of motor be equipped with along its length it is multiple with The venthole of slide opening connection is equipped with the first check valve of the one-way conduction to outside venthole between the slide opening and venthole, described Slide opening bottom is equipped with the second one-way valve of the one-way conduction into slide opening.

2. crankshaft polishing machine according to claim 1, which is characterized in that the support rod is slidably connected with workbench, institute It states workbench and is equipped with the positioning region for being used for positioning support bar.

3. crankshaft polishing machine according to claim 1, which is characterized in that the clamping plate inner wall is equipped with the mill for polishing Layer of sand.

4. crankshaft polishing machine according to claim 1, which is characterized in that the side that the column is located at slide opening, which is hinged with, to push away Plate is equipped with mandril between the push plate and sliding block, the mandril and push plate, sliding block are hinged；It is offered in the middle part of the push plate logical Slot, the side of the close cylinder of the push plate are equipped with polishing layer.

5. crankshaft polishing machine according to claim 1, which is characterized in that first strut and the second strut company of sliding It connects, the support rod is equipped with the locating piece for positioning the first strut and the second strut.