CN1280033C

CN1280033C - Method for coarsening and strengthening surface of mechanical rolling roller

Info

Publication number: CN1280033C
Application number: CN 200410023001
Authority: CN
Inventors: 刘继清; 唐永明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-16
Filing date: 2004-03-16
Publication date: 2006-10-18
Anticipated expiration: 2024-03-16
Also published as: CN1562513A

Abstract

The present invention discloses a method and a device for coarsening and strengthening the surface of a mechanical rolling roller. The surface of a roller 14 is rolled by a roller 10. The pattern of the surface of the roller 10 is copied on the surface of the roller 14. The surface of the roller is coarsened or strengthened. A compression bar 8, a tool bar 9 and the roller 10 are symmetrically arranged at both sides of the roller 14. An oil cylinder 13 is started. Oil enters a working chamber of the oil cylinder 13, which drives a piston bar 12 to move. The piston bar 12 orderly drives the compression bar 8, the tool bar 9 and the roller 10 to move through a shaft pin 11 of the piston bar. The roller 10 tightly props the roller 14. When the roller 14 is driven by a main shaft of a machine tool to rotate, the roller 10 rolls the corresponding circumference of the roller 14. When the device is axially fed along the roller 14 by a driving screw bar 2, the roller 10 stably rolls the whole outer surface of the roller 14, huge pressure required by the rolling operation is mutually counteracted in the device, and a body of the machine tool can not be influenced. The method and the device of the present invention can be applied to coarsen or strengthen surfaces of various rollers in metallurgy industry, coloring industry and paper making industry.

Description

The texturing intensifying device of mechanically rolling roller surface

Technical field

The present invention relates to a kind of texturing intensifying device that is applied to the mechanically rolling roller surface in the flat cold-rolled sheet technology surface of used roll handled.

Background technology

When handle on the surface of breaker roll, for satisfying the surface texturing requirement of product, or, improve the amount of rolling of single roll for preventing to skid or bonding for preventing, roller surface needs the sharp cutting edge of a knife or a sword/mm in texturing to 3～12 * 3～12 ²And every square millimeter sharp cutting edge of a knife or a sword quantity depends on the surface requirements of concrete rolling mill practice and product.Before the present invention, the roller surface texturing mainly contains three kinds of modes: shot-peening texturing, electric spark texturing and laser roughening, and they respectively have characteristics:

The shot-peening texturing is to utilize high velocity air that grit is high-speed projected to roller surface, and the roller surface that has polished is got impression, and surface roughness is strengthened, and realizes the roller surface texturing.Because of the diameter of grit is bigger, can not form too high spike at roller surface, the texturing effect is not very good, especially can not satisfy the requirement of great surface quality product; Though shot-peening has the effect of flow harden roller surface, with other two kinds of texturing mode ratios, the single amount of rolling after the each texturing of roll is not high, and the roller consumption is high.Advantage is a texturing efficient height, reduced investment.

The electric spark texturing is to form uneven spike by puncturing roll and interelectrode insulating barrier, roll on the surface because of discharge loses material, realizes roller texturing.Because of the intensity of discharge is controlled, the roughness of roller surface can reach Ra0.8～15um, but the shape of spike and distribution are uncontrollable.Its spike is insulated oil cooling rapidly and but hardens after intensification, thereby improves the steel transportation amount of roll, and the roller consumption is lower, and texturing efficient is higher, and the operating cost height is invested bigger.

Laser roughening is laser to be gathered into a hot spot about diameter 0.2mm project roller surface with this regional metal fusing removal, forms the texturing surface.Little because of laser-heated zone, speed is fast, and hole peripheral region material is had very strong hardening effect, thereby steel transportation amount brought up to about 2 times of electric spark texturing roll, roller consumes low.But the diameter of laser facula is bigger, and the about 0.15mm of minimum light spot diameter of the above laser instrument of 2500KW, the hole diameter of formation will realize that highdensity texturing dot matrix satisfies automobile, the senior panel requirement of household electrical appliances has big difficulty at present more than 0.17mm.Homemade laser haired machine tool is made an investment in about 9,000,000 yuan, and operating cost is higher.

Aspect the roller surface reinforcement, mainly be the way of taking chromium plating at present, the cost height also is difficult for implementing at the scene.

Summary of the invention

The object of the present invention is to provide the texturing intensifying method of a kind of simple in structure, low equipment investment, texturing efficient height, the texturing quality is good, operating cost is low, easy and simple to handle mechanically rolling roller surface, for realizing this method, the present invention also provides corresponding device thereof simultaneously.

For achieving the above object, the technical solution adopted in the present invention is: adopt the mechanically rolling deformation method with roller spreading roller surface, the surface topography of roller is duplicated on the roller surface.Strengthen roller surface with the texturing of texturing roller, its principle is similar to handwheel, handgrip surface knurling in the machining: roll is by horizontal machine tool main shaft driven rotary, saddle is along with axial feed is made in the rotation of main shaft, being contained in oil cylinder on the saddle holds out against the superhard roller of symmetric arrangement carry out spreading on roller surface, make roller surface produce plastic deformation, thereby form and the corresponding texturing of superhard roller surface surface at roller surface.Superhard roller is made by superhard material (carbide alloy, pottery etc.), the roller outer cylinder surface of two symmetric arrangement is processed with intensive, approximate equidistant minute recesses during roller texturing, groove and boss width are all at 0.025～0.3mm, boss height (being depth of groove) is at 0.005～0.5mm, but the groove direction on two rollers is inconsistent, so that form the intersection impression at roller surface.When adopting light surface roller spreading roll, make roller surface produce plasticity and flow and form the compression hardened layer, improve roller surface hardness, and then improve roll service life.

Realize that as above the device of method is: have the saddle of chute to be installed on the guide rail of lathe, the slide that is symmetrically distributed is assemblied in the chute on the saddle, two-way screw mandrel and slide thread connection, the slide symmetry is stuck in the bidirectional helical escape of two-way screw mandrel, and handwheel is fastened on of two-way screw mandrel; Depression bar is arranged symmetrically in the both sides of roll, and one of depression bar is movably hinged by slide pivot pin and slide, and knife bar is inserted in the knife bar groove of depression bar, and roller is assemblied on the knife bar, and the surface of roller is the outer surface of contact roll closely; The other end of the depression bar of symmetric arrangement is by piston rod pivot pin Hinged piston bar or oil cylinder.

Adopt the texturing intensifying method of the mechanically rolling roller surface that as above technical scheme provides and realize the device of this method, compared with prior art, its characteristics are:

1. reduced investment is equivalent to a horizontal lathe that precision is not high;

2. texturing efficient height, its working time roughly is the time of car one cutter screw thread, about 10 minutes, specifically depends on the size of roll;

3. texturing quality is good, because of roller surface can be made into regular uniform shape, also just can guarantee the roller surface rule evenly;

4. texturing controllable density, the requirement of the different process that is content with very little, the roller upper groove can be made into different sizes, the depth and density, so can select substandard roller texturing roll for use according to rolling requirement;

5. roll steel transportation amount height, the roller consumption is low, and roll has obtained uniform flow harden in the texturing process, and in addition because of texturing bossing structure is stronger, frangibility does not help improving steel transportation amount yet;

6. can be by adjusting the roughness that oil cylinder working-pressure changes the texturing surface, simple and reliable easy row;

7. operating cost is low, as long as very little power consumption and rolling wheel wear;

8. because of forming mutually the deep drawability that the not pit oil storage of UNICOM improves metallic plate at product surface;

9. adopt the light surface roller can strengthen roller surface, improve roll campaign.

10. integrate texturing and strengthen function, widely applicable.

Description of drawings

Fig. 1 is the texturing intensifying device schematic diagram of mechanically rolling roller surface of the present invention, also is specification digest accompanying drawing of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.

The present invention adopts mechanical rollers spreading roller surface, and the roller surface pattern is duplicated roller surface.

As shown in Figure 1,1 is saddle, and 2 is drive lead screw, and 3 is slide symmetry card, and 4 is slide, 5 is two-way screw mandrel, and 6 is handwheel, and 7 is the slide pivot pin, and 8 is depression bar, and 9 is knife bar, 10 is roller, and 11 is the piston rod pivot pin, and 12 is piston rod, and 13 is oil cylinder, and 14 are roll (being workpiece).The saddle 1 that is processed with chute is installed on the guide rail of lathe, and drive lead screw 2 is contained on the saddle 1, and drive lead screw 2 is parallel with the axis of roll 14, drives drive lead screw 2 and can make saddle 1 along roll 14 axially-movables.The slide 4 that is symmetrically distributed is assemblied in the chute on the saddle 1, two-way screw mandrel 5 and slide 4 thread connection, and slide symmetry card 3 is stuck in the bidirectional helical escape of two-way screw mandrel 5, and is in the middle position of two slides 4, and handwheel 6 is fastened on of two-way screw mandrel 5.Rotate handwheel 6 and drive two-way screw mandrel 5 and rotate, so the slide 4 that is symmetrically distributed is moving in the chute on saddle 1 under the driving of two-way screw mandrel 5 to adjust the distance of slide 4 between relatively, the both sides that make two slides 4 keep being distributed in symmetrically roll 14.Depression bar 8 is arranged symmetrically in the both sides of roll 14, and one of depression bar 8 is movably hinged by slide pivot pin 7 and slide 4.Knife bar 9 is inserted in the knife bar groove of depression bar 8.Roller 10 is superhard roller, and it is made by superhard material (as carbide alloy, pottery etc.), and roller 10 is assemblied on the knife bar 9, and makes the outer surface of the tight contact in the surface roll 14 of roller 10.The other end of the depression bar 8 of symmetric arrangement is by piston rod pivot pin 11 Hinged piston bars 12 or oil cylinder 13.Oil cylinder 13 is application of force person, and it is the change in size of adaptive zone roll forming roll automatically, can tighten pressure easily by the oil pressure of adjusting oil cylinder 13, adapts to the texturing roughness of different roller surfaces and strengthens degree of depth requirement.

During enforcement, start oil cylinder 13, make the working chamber oil-feed of oil cylinder 13, drive piston rod 12 motions, piston rod 12 drives depression bar 8, knife bar 9, roller 10 actions successively through piston rod pivot pin 11, and makes the surface of roller 10 directly hold out against roll 14.When roll 14 rotates under machine tool chief axis drags, with the surface of roller 10 spreading rolls 14.Because the groove direction on two rollers 10 is inconsistent, the surface topography of roller 10 is duplicated on roll 14 surfaces, just on roll 14 surfaces, form and intersect impression, promptly form intensive spike.When roller 10 is light surface roller spreading roll 14, make roll 14 surfaces produce plasticity and flow, form the compression hardened layer, improve roll 14 case hardnesses, strengthen roller surface.After the whole spreadings in the surface of whole roll 14 were intact, oil cylinder 13 working chamber emptyings drove rollers 10 with depression bar 8, knife bar 9 and leave roll 14 circumferential surfaces, and spreading finishes, and it is stand-by to take off roll 14.

Claims

1, a kind of texturing intensifying device of mechanically rolling roller surface, it is characterized in that: have the saddle (1) of chute to be installed on the guide rail of lathe, the slide (4) that is symmetrically distributed is assemblied in the chute on the saddle (1), two-way screw mandrel (5) and slide (4) thread connection, slide symmetry card (3) is stuck in the bidirectional helical escape of two-way screw mandrel (5), and handwheel (6) is fastened on of two-way screw mandrel (5); Depression bar (8) is arranged symmetrically in the both sides of roll (14), (8) one of depression bars are movably hinged by slide pivot pin (7) and slide (4), knife bar (9) is inserted in the knife bar groove of depression bar (8), roller (10) is assemblied on the knife bar (9), and the surface of roller (10) is the outer surface of contact roll (14) closely; The other end of the depression bar of symmetric arrangement (8) is by piston rod pivot pin (11) Hinged piston bar (12) or oil cylinder (13).