CN106493989A

CN106493989A - Stamping machine

Info

Publication number: CN106493989A
Application number: CN201510564042.2A
Authority: CN
Inventors: 丁乃祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-07
Filing date: 2015-09-07
Publication date: 2017-03-15
Anticipated expiration: 2035-09-07
Also published as: CN106493989B

Abstract

The present invention relates to a kind of stamping machine, belong to mechanical field, including driving gear and driven gear, driving gear is connected with machine shaft by transmission device, driven gear is fixed on bent axle, driving gear is by transmitting power with driven gear engagement, the working face of the gear teeth on driving gear is circular arc, the groove of circular arc is set on driven gear, groove is snuggly mated to together with the outer surface of the gear teeth with the inner surface of groove during gear teeth meshing, the gear teeth are arc surface, engaged by arc surface between gear, the gear teeth are contacted by cambered surface in engagement process, gear teeth each several part uniform force, prevent from beating tooth.

Description

Stamping machine

Technical field

The present invention relates to a kind of stamping machine, belongs to mechanical field.

Background technology

Stamping machine is exactly a punching type forcing press.In national product, Sheet Metal Forming Technology due to processing than tradition machinery for have section About material and the energy, efficiency high are high to operator's technical requirements and can make machining institute nothing by various mould applications The product that method reaches these advantages, thus its purposes is more and more extensive.

The design principle of stamping machine is that circular motion is converted to linear motion, and mair motor rotating shaft drives driving tooth by transmission device Wheel, driving gear and flywheel engaged transmission, flywheel are arranged on bent axle by clutch, installing connecting rods on bent axle, interlinking lever end If slide block, flywheel drives crank rotation, bent axle to drive drift to move along a straight line.Flywheel dimension is larger, so general by casting Form, cast iron intensity difference itself, simultaneously because the difference of casting technique, each gear-tooth strength is also different.In normal working conditions, During gear teeth stand under load, tooth root in the presence of alternate load, along with tooth root transition portion the abrupt change of cross-section and machining spur etc. cause Stress concentration effect, when the gear teeth repeat stand under load after, fatigue crack will be produced at tooth root, gear teeth fatigue break is finally made.? When the gear teeth are subject to overload suddenly, it is possible that the gear teeth snap or cut off.In addition, when after wheel odontotripsis, transverse tooth thickness is too thinning, Break of gear tooth also can occur in normal conditions.

When punch press works, quickly, impulsive force is very big, typically now setting-up eccentricity brake wheel on bent axle for the drift downstream rate of punch press Slowed down, while being also used for ensureing the normal of clutch, but brake wheel is easy to wear, after abrasion between eccentric wheel and brake block between Gap increases, and reduces braking effect.

Content of the invention

According to deficiency of the prior art above, the technical problem to be solved in the present invention is：A kind of stamping machine is provided, the gear teeth are circle Cambered surface, is engaged by arc surface between gear, and the gear teeth are contacted by cambered surface in engagement process, gear teeth each several part uniform force, Prevent from beating tooth.

Stamping machine of the present invention, including driving gear and driven gear, driving gear is connected with machine shaft by transmission device Connect, driven gear is fixed on bent axle, driving gear transmits power by engaging with driven gear, the gear teeth on driving gear Working face is circular arc, arranges the groove of circular arc, groove and the inner surface and the gear teeth of groove during gear teeth meshing on driven gear Outer surface is snuggly mated to together.

Operation principle and process：

During work, groove is snuggly mated to together with the outer surface of the gear teeth with the inner surface of groove during gear teeth meshing, driven gear with Driving gear is engaged by circular arc plane from start to finish, relative to now cogged linear contact lay stress evenly, greatly Big reduction broken teeth probability.

Driving gear both sides distinguish strap, between clamping plate by bolt installation cylindrical roll, Boards wall on driving gear, Driven gear is engaged with the arc surface of cylindrical roll, and in engagement process, cylindrical roll is rotatable, change sliding friction into rolling friction, greatly Abrasion is reduced greatly.

Reinforcing bar is embedded with along Impact direction in frame, similar to reinforced concrete structure, as frame build is larger, is usually led to Cross pig iron casting to form, due to the impact of casting technique, the stress of frame each several part is inconsistent, the supporting part stress in punching press Larger, frame easy fracture, now reinforcing bar can improve the intensity of frame, prevent frame rupture.

Rebar surface arranges raised, the raised frictional force that can increase between reinforcing bar and frame, prevents phase between reinforcing bar and frame To movement.

A screw rod is passed through in frame top, on connecting rod bearing shell lid, screw rod upper and lower ends are combined with nut to screw rod lower hinge, Top nut and frame between set row spring, set up spring between the nut of lower section and frame, when deflection of crankshaft position to During upper rotation, up spring is pressurized, prevents connecting rod up too fast, makes clutch normal, when deflection of crankshaft position rotates down, Descending spring is pressurized, prevents connecting rod descending too fast, damages drift and mould, while ensureing the safety of operating personnel.

The present invention is had an advantageous effect in that compared with prior art：

Stamping machine of the present invention, driven gear and driving gear are engaged by circular arc plane from start to finish, phase For now cogged linear contact lay stress evenly, is substantially reduced in broken teeth probability, frame and is embedded with reinforcing bar, class along Impact direction Reinforced concrete structure is similar to, reinforcing bar can improve the intensity of frame, prevents frame from rupturing, substantially prolongs the service life of punch press, Save maintenance time and cost.

Description of the drawings

Fig. 1 is embodiment of the present invention schematic diagram；

Fig. 2 is embodiment illustrated in fig. 1 part A partial enlarged drawing；

Fig. 3 is embodiment illustrated in fig. 1 part B partial enlarged drawing；

Fig. 4 is part A partial enlarged drawing of the embodiment illustrated in fig. 1 with cylindrical roll；

Fig. 5 is the sectional view of embodiment illustrated in fig. 1 driving gear；

Fig. 6 is buffer unit schematic diagram.

In figure：1st, frame；2nd, driving gear；3rd, driven gear；4th, the gear teeth；5th, groove；6th, raised；7th, reinforcing bar； 8th, cylindrical roll；9th, nut；10th, bolt；11st, clamping plate；12nd, nut；13rd, screw rod；14th, descending spring；15 is up Spring；16 bent axles；17th, connecting rod FE Tiler；18th, connecting rod.

Specific embodiment

Below in conjunction with the accompanying drawings embodiments of the invention are described further：

As Figure 1-Figure 5, stamping machine of the present invention, including driving gear 2 and driven gear 3, driving gear 2 leads to Cross transmission device to be connected with machine shaft, driven gear 3 is fixed on bent axle, driving gear 2 is by engaging with driven gear 3 Transmission power, the working face of the gear teeth 4 on driving gear 2 is circular arc, arranges the groove 5 of circular arc on driven gear 3, When groove 5 is engaged with the gear teeth 4, the inner surface of groove 5 is snuggly mated to together with the outer surface of the gear teeth 4.

Operation principle and process：

During work, when groove 5 is engaged with the gear teeth 4, the inner surface of groove 5 is snuggly mated to together with the outer surface of the gear teeth 4, from Moving gear 3 and driving gear 2 are engaged by circular arc plane from start to finish, are received relative to now cogged linear contact lay Power evenly, substantially reduces broken teeth probability.

Strap 11 is distinguished in 2 both sides of driving gear, installs cylindrical roll 8, driven gear 3 by bolt 10 between clamping plate 11 Engage with the arc surface of cylindrical roll 8, in engagement process, cylindrical roll 8 is rotatable, and change sliding friction subtracts significantly into rolling friction Little abrasion.

Reinforcing bar 7 is embedded with along Impact direction in frame 1, similar to 7 xoncrete structure of reinforcing bar, due to 1 build of frame larger, Form generally by pig iron casting, as the impact of casting technique, the stress of 1 each several part of frame are inconsistent, receive in punching press Power is larger, 1 easy fracture of frame, and now reinforcing bar 7 can improve the intensity of frame 1, prevent frame 1 from rupturing, simultaneously because reinforcing bar Casting temperature of the fusing point higher than cast iron, will not be melted reinforcing bar or change reinforcing bar self attributes when casting.

Reinforcing bar 7 is high strength cast iron.

7 surface of reinforcing bar arranges raised 6, raised 6 and can increase the frictional force between reinforcing bar 7 and frame 1, prevents reinforcing bar 7 and machine There is relative movement between frame 1.

A screw rod 13 is passed through in frame top, on connecting rod FE Tiler 17,13 upper and lower ends of screw rod coordinate screw rod lower hinge There is nut 12, row spring 14 is set between the nut 12 of top and frame 1, is set up between the nut 12 of lower section and frame 1 Spring 15, when 16 bending position of bent axle is rotated up, up spring 15 is pressurized, prevents connecting rod 18 up too fast, make from Close normally, when 16 bending position of bent axle is rotated down, descending spring 14 is pressurized, prevents connecting rod 18 descending too fast, damage punching Head and mould, while ensure the safety of operating personnel.

Improvement to gear and frame 1 of the present invention is can be applied not only on stamping machine, every application gear and cast iron The frame for movement of frame 1 can apply the size and number of this improvement, reinforcing bar 7 be changed according to force environment.

Claims

1. a kind of stamping machine, including driving gear (2) and driven gear (3), driving gear (2) is turned with motor by transmission device Axle connects, and driven gear (3) is fixed on bent axle, and driving gear (2) is by transmitting power, its feature with driven gear (3) engagement It is：The working face of the gear teeth (4) on driving gear (2) is the groove (5) for arranging circular arc on circular arc, driven gear (3), When groove (5) is engaged with the gear teeth (4), the inner surface of groove (5) is snuggly mated to together with the outer surface of the gear teeth (4).

2. stamping machine according to claim 1, it is characterised in that：Driving gear (2) both sides difference strap (11), Cylindrical roll (8) is installed by bolt (10) between clamping plate (11), driven gear (3) is engaged with the arc surface of cylindrical roll (8), in engagement During cylindrical roll (8) rotatable, change sliding friction substantially reduces abrasion into rolling friction.

3. stamping machine according to claim 1, it is characterised in that：Reinforcing bar (7) is embedded with along Impact direction in frame (1), Similar to reinforcing bar (7) xoncrete structure, as frame (1) build is larger, form generally by pig iron casting, due to founder The impact of skill, the stress of frame (1) each several part are inconsistent, and in punching press, stress is larger, frame (1) easy fracture, now reinforcing bar (7) The intensity of frame (1) can be improved, prevents frame (1) from rupturing, simultaneously because reinforcing bar fusing point is being carried out higher than the casting temperature of cast iron Reinforcing bar will not be melted during casting or change reinforcing bar self attributes.

4. stamping machine according to claim 3, it is characterised in that：Reinforcing bar (7) is high strength cast iron.

5. stamping machine according to claim 3, it is characterised in that：Reinforcing bar (7) surface is arranged raised (6), raised (6) energy Frictional force between increase reinforcing bar (7) and frame (1), prevents relative movement between reinforcing bar (7) and frame (1).

6. stamping machine according to claim 1, it is characterised in that：A screw rod (13) is passed through in frame top, under screw rod Portion is hinged on connecting rod FE Tiler (17), and screw rod (13) upper and lower ends are combined with nut (12), the nut (12) of top and frame (1) Between set row spring (14), set up spring (15) between the nut (12) of lower section and frame (1), when bent axle (16) bending position When being rotated up, up spring (15) are pressurized, prevent connecting rod (18) up too fast, make clutch normal, when bent axle (16) bends position Put when rotating down, descending spring (14) are pressurized, prevent connecting rod (18) descending too fast, damage drift and mould, while ensureing behaviour Make the safety of personnel.