CN102773518B

CN102773518B - Processing device and processing method of through hole of crank throw of crank shaft

Info

Publication number: CN102773518B
Application number: CN201210267353.9A
Authority: CN
Inventors: 盛明和; 曹正素
Original assignee: CHONGQING XIEMA MECHANICAL CRANKSHAFT CO LTD
Current assignee: CHONGQING XIEMA MECHANICAL CRANKSHAFT CO LTD
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2014-05-21
Anticipated expiration: 2032-07-31
Also published as: CN102773518A

Abstract

The invention discloses a processing device and a processing method of a through hole of a crank throw of a crank shaft to solves problems of low efficiency, large labor consumption and high knife cost of the processing device and the processing method of the through hole of the crank throw of the crank shaft in the prior art. The processing device comprises a worktable, a clamping unit and a drilling unit, wherein both the clamping unit and the drilling unit are arranged on the worktable, the drilling unit comprises two horizontally and oppositely arranged drilling mechanisms, and the clamping unit clamps the crank shaft through two cranked lever supporting blocks, a crank throw supporting block and a pneumatic jacking tight mechanism corresponding to the supporting blocks. The processing method includes steps that the two horizontally and oppositely arranged drilling mechanisms move in the opposite directions and simultaneously drill holes in the two directions, and when the distance between two drill bits is 2-3cm, one drill bit returns, and the other drill bit continues to advance until the through hole of the crank throw is penetrated through. The two drilling mechanisms are adopted to simultaneously process the through hole of the crank throw so that production efficiency is improved and knife consumption cost is reduced.

Description

Crankshaft crank through hole processing unit (plant) and processing method

Technical field

The present invention relates to a kind of crankshaft processing device and processing method, particularly a kind of crankshaft crank through hole processing unit (plant) and processing method.

Background technology

General power machine crank shaft is the strength member of load, transferring power of withstanding shocks in engine.Its one end bar portion is flywheel end bar portion, and main connector is engine flywheel; Middle part is crank throw, is mainly connected with connecting rod; Other end bar portion is output bar portion, mainly connects external loading device; The endoporus of crank throw is crank throw through hole.In prior art, the processing of crank throw through hole adopts a fluted drill on upright drill, manually to process crank throw through hole conventionally, its processing method is: first, then bent axle is vertically clamped on Drilling machines bench,, manual operation drill bit bores crank throw through hole from top to bottom, until drill crank throw through hole, and last, drill bit return, cleaning iron is cut, and unloads bent axle.Such processing method not only efficiency is low, labour consumes greatly, and deep hole machining causes chip removal weak effect, be difficult for guaranteeing the quality of crank throw through hole, and drill bit easily ruptures in the time that crank throw through hole is drilled, and causes the increase of the cost of charp tool, in a word, it is low that crank throw through hole processing unit (plant) of the prior art and processing method exist efficiency, and labour consumes greatly, the problems such as cost of charp tool height.

Summary of the invention

Low for solving the efficiency that crankshaft crank through hole processing unit (plant) of the prior art and processing method exist, labour consumes greatly, the problems such as cost of charp tool height.The present invention proposes a kind of crankshaft crank through hole processing unit (plant) and processing method.

Crankshaft crank through hole processing unit (plant) of the present invention, comprise: workbench, clamping unit and units, described clamping unit and units are all installed on workbench, described units comprises the borehole drill construction that two cover levels are oppositely arranged, and be arranged at the both sides of clamping unit, and two drill bits are arranged on same axis; Described clamping unit comprises two curved bar back-up blocks, a crank throw back-up block and the pneumatic jacking mechanism corresponding with back-up block, the end of back-up block is equipped with V-type groove, and the height of crank throw back-up block V-type groove and position and drill axis match, be that after crank throw is held out against in crank throw back-up block V-type groove, the axis of crank throw overlaps with drill axis.

Crankshaft crank processing method of through holes of the present invention, adopts crankshaft crank through hole processing unit (plant) processing crank throw through hole of the present invention, comprises the following steps:

(1) bent axle clamps: curved bar and crank throw are positioned on corresponding back-up block, start pneumatic jacking mechanism, clamp bent axle thereby curved bar and crank throw are headed into by pneumatic jacking mechanism in the V-type groove of back-up block;

(2) processing: open borehole drill construction, borehole drill construction move toward one another that two cover levels are oppositely arranged is simultaneously from both direction boring, and when two drill bits are during at a distance of 2～3cm, wherein the drill bit of a set of borehole drill construction is return, another set of borehole drill construction continues feeding, until crank throw through hole connects;

(3) return: two cover borehole drill construction returns, start pneumatic jacking mechanism and return, unload bent axle.

The beneficial effect of crankshaft crank through hole processing unit (plant) of the present invention and processing method is to fix clamping by grip unit, adopt two cover borehole drill constructions to process crank throw through hole simultaneously, improve greatly production and processing efficiency, overcome the problem that drill bit when crank throw through hole drills loses suddenly load and cause drill bit easy fracture, effectively reduce cutter consuming cost, simultaneously, due to crank throw through hole two is processed simultaneously, working depth reduces half, therefore it is better to use crank throw through hole Drilling operation device of the present invention and its row of processing method to cut effect, the crudy of crank throw through hole is further enhanced.

Accompanying drawing explanation

Fig. 1 is that the master of crankshaft crank through hole processing unit (plant) of the present invention looks schematic diagram;

Fig. 2 is the schematic top plan view of crankshaft crank through hole processing unit (plant) of the present invention;

Fig. 3 be in Fig. 2 A-A to schematic diagram.

The specific embodiment

Fig. 1 is that crankshaft crank through hole processing unit (plant) master of the present invention looks schematic diagram, and Fig. 2 is the schematic top plan view of crankshaft crank through hole processing unit (plant) of the present invention, Fig. 3 be in Fig. 2 A-A to schematic diagram; In figure, 1 for workbench, 2-1 are that curved bar back-up block, 2-2 are that crank throw back-up block, 2-3 are that pneumatic jacking mechanism, 3-1 are that borehole drill construction, 4 is bent axle, and 4-1 is that curved bar, 4-2 are crank throw, and 4-2-1 is crank throw through hole.As seen from the figure, crankshaft crank through hole processing unit (plant) of the present invention, comprise: workbench 1, clamping unit and units, described clamping unit and units are all installed on workbench 1, described units comprises the borehole drill construction 3-1 that two cover levels are oppositely arranged, and be arranged at the both sides of clamping unit, and two drill bits are arranged on same axis; Described clamping unit comprises two curved bar back-up block 2-1, a crank throw back-up block 2-2 and the pneumatic jacking mechanism 2-3 corresponding with back-up block, the end of back-up block (2-1,2-2) is equipped with V-type groove, and the V-type groove height of crank throw back-up block 2-2 and position and drill axis match, be that after crank throw 4-2 is held out against in the V-type groove of crank throw back-up block 2-2, the axis of crank throw 4-2 overlaps with drill axis.Crankshaft crank through hole 4-2-1 processing unit (plant) of the present invention adopts V-type groove and pneumatic jacking mechanism 2-3 to be fixed clamping bent axle 4, both facilitated the clamping of bent axle 4, facilitate again the location of bent axle 4, after crank throw 4-2 is held out against in the V-type groove of crank throw back-up block 2-2, the axis of crank throw 4-2 overlaps with drill axis, has guaranteed the crudy of crank throw through hole 4-2-1.In addition, the borehole drill construction 3-1 that crankshaft crank through hole 4-2-1 processing unit (plant) of the present invention adopts two cover levels to be oppositely arranged, can be to crank throw through hole 4-2-1 processing simultaneously in opposite directions, when two drill bits are when 2～3cm, wherein the drill bit of a set of borehole drill construction 3-1 is return, and another set of borehole drill construction 3-1 continues feeding, until crank throw through hole 4-2-1 connects, both guaranteed the speed of boring, guaranteed again the quality of boring, the axiality of the crank throw through hole 4-2-1 of processing is guaranteed.

Crankshaft crank processing method of through holes of the present invention, as shown in Figure 1 to Figure 3, adopts crankshaft crank through hole processing unit (plant) processing crank throw through hole of the present invention, comprises the following steps:

(1) bent axle clamps: curved bar 4-1 and crank throw 4-2 are positioned on corresponding back-up block (2-1,2-2), start pneumatic jacking mechanism 2-3, as shown in Figure 3, by pneumatic jacking mechanism 2-3, curved bar 4-1 and crank throw 4-2 are headed into back-up block (2-1,2-2) thus V-type groove in clamp bent axle 4;

(2) processing: open borehole drill construction 3-1, the borehole drill construction 3-1 move toward one another that two cover levels are oppositely arranged is holed from both direction simultaneously, when two drill bits are when 2～3cm, wherein the drill bit of a set of borehole drill construction 3-1 is return, another set of borehole drill construction 3-1 continues feeding, until crank throw through hole 4-2-1 connects; Adopt two cover borehole drill construction 3-1 to process crank throw through hole 4-2-1 simultaneously, improve greatly production and processing efficiency, overcome the problem that drill bit when crank throw through hole 4-2-1 drills loses suddenly load and cause drill bit easy fracture, effectively reduce cutter consuming cost, meanwhile, due to crank throw through hole 4-2-1 two is processed simultaneously, working depth reduces half, therefore it is better that row cuts effect, the crudy of crank throw through hole 4-2-1 is further enhanced;

(3) return: two cover borehole drill construction 3-1 returns, start pneumatic jacking mechanism 2-3 and return, unload bent axle 4.

Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.

Claims

1. a crankshaft crank through hole processing unit (plant), it is characterized in that, this device comprises: workbench, clamping unit and units, described clamping unit and units are all installed on workbench, described units comprises the borehole drill construction that two cover levels are oppositely arranged, and be arranged at the both sides of clamping unit, and two drill bits are arranged on same axis; Described clamping unit comprises two curved bar back-up blocks, a crank throw back-up block and the pneumatic jacking mechanism corresponding with back-up block, the end of back-up block is equipped with V-type groove, and the height of crank throw back-up block V-type groove and position and drill axis match, be that after crank throw is held out against in crank throw back-up block V-type groove, the axis of crank throw overlaps with drill axis.

2. a crankshaft crank processing method of through holes, adopts crankshaft crank through hole processing unit (plant) processing crank throw through hole of the present invention, comprises the following steps: