CN202527986U

CN202527986U - Oil supply mechanism for pull broach driving hydraulic cylinder of center machining device

Info

Publication number: CN202527986U
Application number: CN2012200415576U
Authority: CN
Inventors: 李双树
Original assignee: KUNSHAN BEIJU MACHINERY CO Ltd
Current assignee: KUNSHAN BEIJU MACHINERY CO Ltd
Priority date: 2012-02-09
Filing date: 2012-02-09
Publication date: 2012-11-14
Anticipated expiration: 2022-02-09

Abstract

The utility model discloses an oil supply mechanism for a pull broach driving hydraulic cylinder of a center machining device. The oil supply mechanism for the pull broach driving hydraulic cylinder drives a plate-shaped cam to rotate through a driving device for a pull broach changing arm of the center machining device. The outer border of the plate-shaped cam is synchronously linked with an oil supply cylinder, and drives the oil supply cylinder to act to provide hydraulic oil required by the action of the pull broach driving hydraulic cylinder. The addition of an independent hydraulic driving system is not required, so that production cost is saved; and moreover, the outer border of the plate-shaped cam is matched with the oil supply cylinder to reciprocally move, so that the problem of additional driving time caused by gas boosting in a pneumatic driving mode can be solved, and the machining efficiency of a workpiece can be improved.

Description

A kind of center processing machine broaching tool drives hydraulic cylinder fluid feed mechanism

Technical field

The utility model relates to a kind of center processing machine broaching tool and drives hydraulic cylinder fluid feed mechanism; Especially relate to a kind of gear unit that passes through the tool change arm driving mechanism of center processing machine itself and drive the plate cam gabarit on the fluted disc; With synchronous interaction fuel feeding cylinder, drive broaching tool through the fuel feeding cylinder and drive hydraulic cylinder promotion fluid.

Background technology

At present, normally used center processing machine broaching tool drives hydraulic cylinder and is roughly two types of oil pressure actuated and gas/oil pressure actuated:

Broaching tool driving hydraulic cylinder fluid feedway by oil pressure actuated is to provide the hydraulic-driven broaching tool to drive hydraulic cylinder by a live hydraulic system, makes the cutter of the mechanism's clamping of forging a knife of this center processing machine break away from clamping; And described live hydraulic system must be controlled by the Circuits System that design cooperates with it.

Broaching tool driving hydraulic cylinder fluid feedway by gas/oil pressure actuated is by a baric systerm, and it comprises an air compressor machine and produces gases at high pressure, and it pushes hydraulic oil to send gases at high pressure to the power multiplying cylinder driving via pipeline again, promotes broaching tool indirectly and drives the hydraulic cylinder start.The subject matter of this kind type of drive is, power multiplying cylinder must expend long driving time and retardation tool changing tool efficient causes the relative increase of time of workpiece fabrication cycles.

Therefore how utilizing comparatively simple mechanism to reach the broaching tool that makes the center processing machine and drive the hydraulic cylinder start, then is the emphasis that the utility model institute desire solves.

The utility model content

The utility model has solved above technical problem, provides a kind of cost lower, saves the workpiece fabrication cycles time, and the center processing machine broaching tool that improves working (machining) efficiency drives hydraulic cylinder fluid feed mechanism.

The technical scheme that the above technical problem that solves the utility model adopts is; Provide a kind of center processing machine broaching tool to drive hydraulic cylinder fluid feed mechanism, said center processing machine is operated by a drive device drives one tool change arm 54, and cooperates broaching tool driving hydraulic cylinder 6 to carry out the tool changing action; Said drive unit comprises: a casing 1; One pivot 11 is located in the said casing 1, and a fluted disc 3 is arranged on the said pivot 11, and said fluted disc 3 end faces have a cam ditch 31; One travelling gear 4 drives said fluted disc 3 transmissions; One roller cam 51 is arranged on the said pivot 11, rotates with said travelling gear 4 synchronous interlocks, and a roller-dear 52 is arranged on the tool arm axle that is connected with said tool change arm 54; Said roller cam 51 cooperates the rotation of controlling said tool change arm 54 with said roller-dear 52, and a crank 53 cooperates with said cam ditch 31 and supplies to stir the tool arm axle to control the upper and lower displacement of this tool change arm 54; It is characterized in that:

The casing 1 of said drive unit is provided with a fuel feeding cylinder 2; Said fuel feeding cylinder 2 comprises a cylinder body 21; Said cylinder body 21 1 ends are fixed on the said casing 1; One supplies hydraulic oil hole 221 fuel-displaced and oil return to be arranged on the said cylinder body 21, and a broaching tool drives hydraulic cylinder 6 and is connected with a pipeline 222 with said hole 221; One piston 23 is arranged in the cylinder body 21 of said fuel feeding cylinder 2, and a push rod 24 is connected with said piston 23, and said push rod 24 is by extending in the said cylinder body 21 in the said casing 1, and a roller 25 is arranged on the end of said push rod 24;

One plate cam portion is arranged on the said pivot 11, and said plate cam portion has a waney plate cam gabarit 32, and said plate cam gabarit 32 has the side face of wheel, and said roller 25 is resisted against on the wheel side face of said plate cam gabarit 32.

Preferably, a compression spring 26 is arranged in the said oil cylinder 2, and is arranged between said fuel feeding cylinder 2 inner bottom and the said piston 23, and direction is counter to be pushed away to pushing to supply said push rod 24.

Preferably, said plate cam portion is extended and is formed said plate cam gabarit 32 by the outer rim of said fluted disc 3.

The beneficial effect of the utility model is: the transmission device that the cutter-exchange mechanism 5 of processing machine itself has by the center of driving provides power; The back and forth movement that cooperates fuel feeding cylinder 2 with plate cam gabarit 32; Drive broaching tool and drive the fluid of hydraulic cylinder 6 and produce pressure, and then to the action of forging a knife of the main shaft 7 of center processing machine.

Therefore; Not only need not set up independently the oil pressure actuated system and save production cost; And, can solve in the air pressure type of drive because the extra driving time that gas boosting produced improves the workpiece working (machining) efficiency by the back and forth movement that plate cam gabarit 32 cooperates with fuel feeding cylinder 2.

Description of drawings

Fig. 1 is the planar structure sketch map of the utility model embodiment;

Fig. 2 is the utility model embodiment fuel feeding cylinder piston pressurization sketch map;

Fig. 3 is the utility model embodiment fuel feeding cylinder piston reset sketch map;

1. casing, 11. pivots, 2. fuel feeding cylinder, 21. cylinder bodies, 221. holes, 222. pipelines; 23. piston, 24. push rods, 25. rollers, 26. compression springs, 3. fluted disc, 31. cam ditches; 32. the plate cam gabarit, 321H. peak, 321L. minimum point, 4. travelling gear, 5. cutter-exchange mechanism, 51. roller cams; 52. roller-dear, 53. cranks, 54. tool change arms, 6. broaching tool drives hydraulic cylinder, 61. pistons, 7. main shaft.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done further detailed explanation.

Extremely shown in Figure 3 like Fig. 1; One casing 1 adopts connector such as screw, fastener etc. to be connected with a pivot 11; One fluted disc, 3 end faces have a cam ditch 31; And the outer rim of said fluted disc 3 extends to form a plate cam portion, and said plate cam portion has a waney plate cam gabarit 32, and said plate cam gabarit 32 has the side face of wheel; Said fluted disc 3 is arranged on the said pivot 11, and a travelling gear 4 drives via a motor (not shown), and said fluted disc 3 is via said travelling gear 4 transmissions; One roller cam 51 is arranged on the said pivot 11, with said fluted disc 3 synchronous interaction transmissions.

One drive unit (not shown) drives tool change arm 54 runnings; One roller-dear 52 is arranged on the tool arm axle of said tool change arm 54; Said roller-dear 52 cooperates the rotation of the said tool change arm 54 of roller cam 51 controls; One end of one crank 53 is fixed on the tool arm axle of said tool change arm 54, and the other end is arranged on the said casing 1, thereby the tool arm axle that said crank 53 cooperates said cam ditch 31 to stir said tool change arm 54 is controlled said tool change arm 54 and done upper and lower displacement.

One fuel feeding cylinder 2 has a cylinder body 21; Said cylinder body 21 adopts connector to be fixed on the said casing 1; Have one on the said cylinder body 21 and supply the hole 221 of the fuel-displaced and oil return of hydraulic oil; The broaching tool that one pipeline 222 adopts connector to connect said hole 221 and tool-broaching mechanism respectively drives on the hydraulic cylinder 6, and a piston 61 is arranged on said broaching tool and drives in the hydraulic cylinder 6.

One piston 23 is arranged in the said cylinder body 21; One push rod 24 is connected on the said piston 23; Said push rod 24 is by extending in the said cylinder body 21 in the said casing 1, and a roller 25 is arranged on said push rod 24 ends, and said roller 25 is resisted against on the wheel side face of said plate cam gabarit 32; One compression spring 26 is arranged between the bottom and said piston 23 of said fuel feeding cylinder 2, and direction is counter to be pushed away to pushing to supply said push rod 24, and when contracting in the said piston 23, said compression spring 26 produces a deboost; When said fluted disc 3 rotated, said roller 25 drove said piston 23 with said push rod 24 stressed guidings in said plate cam gabarit 32 and in said fuel feeding cylinder 2, moves reciprocatingly.

Know by above; When said fluted disc 3 rotates; When the peak 321H on the wheel side face of said plate cam gabarit 32 contacts at said roller 25, make said push rod 24 promote to contract to the bottom of fuel feeding cylinder 2 in the said piston 23, the fluid in the fuel feeding cylinder 2 then flow to broaching tool by hole 221 via pipeline 222 and drive in the hydraulic cylinder 6; And promote said piston 61, and to the action of forging a knife of a main shaft 7 of center processing machine to overhanging.Promote said pistons 23 and said push rod 24 simultaneously when said cylinder body 21 is overhanging when said compression spring 26 compression backs are reverse, the fluid that said broaching tool drives in the hydraulic cylinder 6 are back in the said fuel feeding cylinder 2, and said piston 61 inwardly bounces back.When said fluted disc 3 continues to rotate; Deboost after 26 compressions of said compression spring; Make said push rod 24 driven, move and form a circulation to minimum point 321L position through the peak 321H of the wheel side face of said plate cam gabarit 32 along the wheel side face of said plate cam gabarit 32.

Above embodiment is merely the utility model a kind of embodiment wherein, its describe comparatively concrete with in detail, and to be merely statement more clear and convenient in described orientation, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.

Claims

1. a center processing machine broaching tool drives hydraulic cylinder fluid feed mechanism; Said center processing machine is operated by a drive device drives one tool change arm (54); And cooperating broaching tool driving hydraulic cylinder (6) to carry out the tool changing action, said drive unit comprises: a casing (1), a pivot (11) are located in the said casing (1); One fluted disc (3) is arranged on the said pivot (11); Said fluted disc (3) end face has a cam ditch (31), and a travelling gear (4) drives said fluted disc (3) transmission, and a roller cam (51) is arranged on the said pivot (11); With said travelling gear (4) interlock rotation synchronously; One roller-dear (52) is arranged on the tool arm axle that is connected with said tool change arm (54), and said roller cam (51) cooperates the rotation of the said tool change arm of control (54) with said roller-dear (52), and a crank (53) cooperates with said cam ditch (31) and supplies to stir the tool arm axle to control the upper and lower displacement of this tool change arm (54); It is characterized in that:

The casing of said drive unit (1) is provided with a fuel feeding cylinder (2); Said fuel feeding cylinder (2) comprises a cylinder body (21); Said cylinder body (21) one ends are fixed on the said casing (1); One supplies hydraulic oil hole (221) fuel-displaced and oil return to be arranged on the said cylinder body (21), and a broaching tool drives hydraulic cylinder (6) and is connected with a pipeline (222) with said hole (221); One piston (23) is arranged in the cylinder body (21) of said fuel feeding cylinder (2); One push rod (24) is connected with said piston (23); Said push rod (24) is by extending in the said cylinder body (21) in the said casing (1), and a roller (25) is arranged on the end of said push rod (24);

One plate cam portion is arranged on the said pivot (11); Said plate cam portion has a waney plate cam gabarit (32); Said plate cam gabarit (32) has the side face of wheel, and said roller (25) is resisted against on the wheel side face of said plate cam gabarit (32).

2. a kind of center according to claim 1 processing machine broaching tool drives hydraulic cylinder fluid feed mechanism; It is characterized in that: a compression spring (26) is arranged in the said oil cylinder (2); And be arranged between said fuel feeding cylinder (2) inner bottom and the said piston (23), direction is counter to be pushed away to pushing to supply said push rod (24).

3. a kind of center according to claim 1 processing machine broaching tool drives hydraulic cylinder fluid feed mechanism, it is characterized in that: said plate cam portion is extended and is formed said plate cam gabarit (32) by the outer rim of said fluted disc (3).