CN217666657U

CN217666657U - Automobile crankshaft machining is with combination formula fluted drill that has shock-absorbing function

Info

Publication number: CN217666657U
Application number: CN202221066740.1U
Authority: CN
Inventors: 徐昕
Original assignee: Changzhou Hao Rui Tools Co ltd
Current assignee: Changzhou Hao Rui Tools Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-10-28
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses a car bent axle processing is with combination formula fluted drill who has shock-absorbing function, including fluted drill rod, drill bit spliced pole, butt joint cover, lockhole. The utility model has the advantages that: the whole tungsten steel material preparation of adoption of fluted drill pole constitutes circular columnar structure, guarantee the overall structure intensity of fluted drill pole, and make the sweeps that produce when milling through the chip groove and can discharge fast, the top center department of fluted drill pole is provided with the screw, the center department of drill bit runs through and is provided with the through-hole, be provided with fastening screw in the through-hole, fastening screw revolves soon with the screw and twists the locking, make the staff can dismantle its change fast after the drill bit damages, avoid causing unnecessary economic loss, the top of fluted drill pole is fixed with the locating lug, the locating lug is provided with four altogether, the bottom of drill bit is the indent formula and is provided with the notch, the one-to-one setting about notch and the locating lug, make drill bit and fluted drill pole can the location butt joint, avoid the drill bit because the atress slides when milling.

Description

Automobile crankshaft machining is with combination formula fluted drill that has shock-absorbing function

Technical Field

The utility model relates to a modular fluted drill specifically is a car bent axle processing is with combination formula fluted drill who has shock-absorbing function, belongs to car bent axle processing and uses relevant utensil technical field.

Background

The crankshaft is the most important part in the engine, and bears the force transmitted by the connecting rod, converts the force into torque, outputs the torque through the crankshaft and drives other accessories on the engine to work, and the crankshaft bears the combined action of centrifugal force of rotating mass, gas inertia force with periodic change and reciprocating inertia force, so that the crankshaft bears the action of bending and twisting load.

However, most of the existing combined twist drills have various problems:

1) The existing combined twist drill has a small gap with a fixed column, the cutter has the possibility of vibration in the machining process and does not have the damping function, and the vibration can cause uneven tool absorption of the peripheral edge of the end mill, and the cutting expansion amount is increased compared with the original fixed value, so that the machining precision and the service life of the cutter are influenced;

2) The drill bit and the drill body on the existing combined twist drill mostly adopt an integrated connecting structure, so that the worker can only replace the whole twist drill after the twist drill is damaged, and unnecessary economic loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a car crankshaft processing is with combination formula fluted drill who has shock-absorbing function just in order to solve the problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides an automobile crankshaft processing is with combination formula fluted drill that has shock-absorbing function, includes:

the milling mechanism comprises an auger drill rod and a drill bit, the auger drill rod of a cylindrical structure for milling forms a main body structure of the combined auger drill, and the drill bit of a clover structure is connected and fixed at the top end of the auger drill rod;

the connecting mechanism is connected to the bottom of the milling mechanism, the drill connecting column is vertically welded and fixed to the bottom of the twist drill rod, and the fixed column is vertically connected and fixed to the bottom of the drill connecting column through the butt rod.

As a further aspect of the present invention: the integral twist drill rod is made of tungsten steel materials to form a circular columnar structure, and four chip removing grooves of spiral structures are formed in the side wall of the twist drill rod.

As a further aspect of the present invention: the center of the top of the twist drill rod is provided with a screw hole, the center of the drill bit is provided with a through hole in a penetrating mode, a fastening screw is arranged in the through hole, and the fastening screw and the screw hole are screwed and locked.

As a further aspect of the present invention: the top of the twist drill rod is fixed with four positioning convex blocks, the bottom of the drill bit is provided with a notch in an inwards concave manner, and the notch and the positioning convex blocks are arranged in a one-to-one correspondence manner from top to bottom.

As a further aspect of the present invention: the drill bit connecting column is characterized in that butt joint sleeves are welded at the bottoms of the drill bit connecting columns and the top ends of the fixing columns, limiting grooves are formed in the side walls of inner cavities of the butt joint sleeves in an inwards concave mode, connecting rods are fixed at the upper ends and the lower ends of the butt joint rods, limiting lugs are arranged on the side walls of the connecting rods, and the limiting lugs are in limiting clamping connection in the limiting grooves.

As a further aspect of the present invention: the side wall of the butt joint sleeve is provided with a lock hole, the lock hole penetrates through the inner cavity of the butt joint sleeve, the limiting convex block is elastically connected with a lock plate through a return spring, the lock plate is locked in the lock hole, and the connecting rod is connected with a gasket in an embedded mode.

The beneficial effects of the utility model are that:

1) The integral twist drill rod is made of tungsten steel materials to form a circular columnar structure, four chip-removing grooves with spiral structures are formed in the side wall of the twist drill rod, the integral structure strength of the twist drill rod is guaranteed, and waste chips generated during milling can be quickly discharged through the chip-removing grooves;

2) The center of the top of the auger drill rod is provided with a screw hole, the center of the drill bit is provided with a through hole in a penetrating manner, a fastening screw is arranged in the through hole, and the fastening screw and the screw hole are screwed and locked, so that a worker can quickly disassemble and replace the drill bit after the drill bit is damaged, and unnecessary economic loss is avoided;

3) The top of the auger stem is fixed with four positioning lugs, the bottom of the drill bit is provided with a notch in an inward concave manner, and the notches and the positioning lugs are arranged in a one-to-one correspondence manner from top to bottom, so that the drill bit and the auger stem can be positioned and butted, and the drill bit is prevented from sliding due to stress during milling;

4) Butt sleeves are welded at the bottoms of the drill bit connecting columns and the top ends of the fixing columns, limiting grooves are formed in the side walls of the inner cavities of the butt sleeves in an inwards concave mode, connecting rods are fixed to the upper ends and the lower ends of the butt rods, limiting lugs are arranged on the side walls of the connecting rods, the limiting lugs are clamped in the limiting grooves in a limiting mode, and therefore the connecting rods and the butt sleeves can be in accurate limiting butt joint;

5) Be provided with the lockhole on the lateral wall of butt joint cover, the lockhole runs through to the inside cavity of butt joint cover, has the jam plate through reset spring elastic connection on the spacing lug, and the jam plate locking is in the lockhole to nested connection has the gasket on the connecting rod, makes drill bit spliced pole and fixed column can be connected fast locking and split through the jam plate, and makes it can sealing connection through the gasket, avoids the small clearance that the junction exists to make this fluted drill vibrations when milling.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the twist drill rod and its integral connection structure of the present invention;

FIG. 3 is a schematic view of the split structure of the drill of the present invention;

fig. 4 is the schematic view of the split structure of the butt joint rod of the present invention.

In the figure: 1. the spiral drill rod comprises a spiral drill rod body, 2 drill bits, 3 drill bit connecting columns, 4 butt joint sleeves, 5 lock holes, 6 limit grooves, 7 butt joint rods, 8 connecting rods, 9 limit lugs, 10 lock plates, 11 gaskets, 12 fixing columns, 13 fastening screws, 14 positioning lugs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, a combined twist drill with a damping function for machining an automobile crankshaft includes:

the milling mechanism is composed of an auger stem 1 and a drill bit 2, the auger stem 1 with a cylindrical structure for milling forms a main body structure of the combined auger drill, and the drill bit 2 with a clover structure is fixedly connected to the top end of the auger stem 1;

the connecting mechanism is connected to the bottom of the milling mechanism, the drill connecting column 3 is vertically welded and fixed to the bottom of the auger stem 1, and the fixed column 12 is vertically connected and fixed to the bottom of the drill connecting column 3 through the butt rod 7.

The embodiment of the utility model provides an in, twist drill rod 1 wholly adopts the tungsten steel material preparation to constitute circular columnar structure to be provided with four heliciform structure's chip groove on twist drill rod 1's lateral wall, guarantee twist drill rod 1's overall structure intensity, and can discharge fast through the sweeps that the chip groove messenger produced when milling.

In the embodiment of the utility model, the top center department of fluted drill 1 is provided with the screw, and the center department of drill bit 2 runs through and is provided with the through-hole, is provided with fastening screw 13 in the through-hole, and fastening screw 13 revolves soon with the screw and revolves the locking, makes the staff can dismantle its change fast after drill bit 2 damages, avoids causing unnecessary economic loss.

The embodiment of the utility model provides an in, the top of fluted drill 1 is fixed with positioning convex block 14, and positioning convex block 14 is provided with four altogether, and the bottom of drill bit 2 is the indent formula and is provided with the notch, and the notch sets up with positioning convex block 14 one-to-one from top to bottom, makes drill bit 2 and fluted drill 1 can fix a position the butt joint, avoids drill bit 2 because the atress slides when milling.

Example two

The embodiment of the utility model provides an in, the equal welded regulation in bottom of drill bit spliced pole 3 and the top of fixed column 12 has butt sleeve 4, is the indent formula on the lateral wall of the inside cavity of butt sleeve 4 and is provided with spacing groove 6, and the upper and lower both ends of butt rod 7 are fixed with connecting rod 8, are provided with spacing lug 9 on connecting rod 8's the lateral wall, and the spacing joint of spacing lug 9 makes connecting rod 8 and butt sleeve 4 can accurate spacing butt joint in spacing groove 6.

The embodiment of the utility model provides an in, be provided with lockhole 5 on the lateral wall of butt joint cover 4, lockhole 5 runs through to the inside cavity of butt joint cover 4 in, there is jam plate 10 through reset spring elastic connection on the spacing lug 9, jam plate 10 locks in lockhole 5, and nested connection has gasket 11 on connecting rod 8, make drill bit spliced pole 3 and fixed column 12 can the high-speed joint locking and split through jam plate 10, and make it can sealing connection through gasket 11, the small clearance of avoiding the junction to exist makes this fluted drill vibrations when milling.

The working principle is as follows: when using this combination formula fluted drill, be connected drill bit spliced pole 3 with fixed column 12 through butt joint pole 7 earlier, when being connected, with connecting rod 8 through spacing lug 9 and the spacing butt joint of 6 spacing grooves to make jam plate 10 atress inwards shrink, when removing in lockhole 5, jam plate 10 plays through reset spring and locks its two and can mill, after drill bit 2 damages, the staff accessible revolves soon to twist fastening screw 13 and dismantle its change fast can.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an automobile crankshaft processing is with combination formula fluted drill that has shock-absorbing function which characterized in that includes:

the milling mechanism is composed of a twist drill rod (1) and a drill bit (2), the twist drill rod (1) of a cylindrical structure for milling forms a main body structure of the combined twist drill, and the drill bit (2) of a clover structure is connected and fixed at the top end of the twist drill rod (1);

the connecting mechanism is composed of a drill bit connecting column (3), a butt joint rod (7) and a fixing column (12), the connecting mechanism is connected to the bottom of the milling mechanism, the drill bit connecting column (3) is vertically welded and fixed to the bottom of the twist drill rod (1), and the fixing column (12) is vertically connected and fixed to the bottom of the drill bit connecting column (3) through the butt joint rod (7).

2. The combined type twist drill with the shock absorption function for machining the automobile crankshaft as claimed in claim 1, wherein: the twist drill rod (1) is integrally made of tungsten steel materials to form a circular columnar structure, and four chip removing grooves with spiral structures are formed in the side wall of the twist drill rod (1).

3. The combined type twist drill with the shock absorption function for machining the automobile crankshaft as claimed in claim 1, wherein: the spiral drill rod is characterized in that a screw hole is formed in the center of the top of the spiral drill rod (1), a through hole penetrates through the center of the drill bit (2), a fastening screw (13) is arranged in the through hole, and the fastening screw (13) and the screw hole are screwed and locked.

4. The combined type twist drill with the shock absorption function for machining the automobile crankshaft as claimed in claim 1, wherein: the top of the twist drill rod (1) is fixed with four positioning convex blocks (14), the bottom of the drill bit (2) is provided with a notch in an inwards concave manner, and the notch and the positioning convex blocks (14) are arranged in a one-to-one correspondence manner from top to bottom.

5. The combined type twist drill with the shock absorption function for machining the automobile crankshaft as claimed in claim 1, wherein: the drill bit connecting column is characterized in that butt-joint sleeves (4) are welded at the bottoms of the drill bit connecting columns (3) and the top ends of the fixing columns (12), limiting grooves (6) are formed in the side walls of inner cavities of the butt-joint sleeves (4) in an inwards concave mode, connecting rods (8) are fixed to the upper ends and the lower ends of the butt-joint rods (7), limiting convex blocks (9) are arranged on the side walls of the connecting rods (8), and the limiting convex blocks (9) are in limiting clamping connection in the limiting grooves (6).

6. The combined type twist drill with the shock absorption function for the machining of the automobile crankshaft as claimed in claim 5, wherein: be provided with lockhole (5) on the lateral wall of butt joint cover (4), lockhole (5) run through to the inside cavity of butt joint cover (4), have jam plate (10) through reset spring elastic connection on spacing lug (9), jam plate (10) locking is in lockhole (5) to nested connection has gasket (11) on connecting rod (8).