CN203371285U - Clamp for large roller machining - Google Patents

Abstract

The utility model discloses a clamp for larger roller machining. The clamp comprises a chuck, a limiting hoop and pull rods, the chuck is composed of a chuck body, two clamping plates and a clamping column which are connected integrally, and the limiting hoop is connected with the chuck body through the pull rods and nuts connected to the pull rods in a screwed mode. When the clamp for larger roller machining is used for machining rollers on a tailstock-free roller lathe, the axes of the rollers coincide with the axis of a disc chuck, and axial moving of the rollers in the rotating process is avoided.

Description

Fixture for large-scale roller processing

Technical field

The utility model relates to a kind of fixture used during for the machining large roll.

Background technology

Roll lathe is the equipment that is specifically designed to the machining large roll, is applied to the fields such as roll manufacture, roll reparation, and it comprises headstock, lathe bed and tailstock.Roll lathe is added man-hour at breaker roll, by the floral disc on head of a bed roll, the homalocephalus of the driving end of roll is clamped, and with the tailstock centre back-up roll other end, make roll by unsettled clamping on lathe.This kind of old-fashioned roll lathe is owing to having tailstock, therefore the roll of processing thereon can be subject to the restriction of roll length.In order on old-fashioned roll lathe, to process longer, heavier roll, as shown in Figure 7, applicant is transformed old-fashioned roll lathe, disassemble the tailstock on lathe bed 12, and be provided with two groups of totally four support rollers 13 on lathe bed 12, two groups of support rollers longitudinally are arranged on lathe bed, every group of support roller along lateral arrangement on lathe bed, and with the perpendicular symmetry at the floral disc 15 axial line places on headstock 14.Utilizing this kind of modified anury seat coach bed breaker roll to add man-hour, intending processing roll and be supported on described support roller 13, the support roller breaker roll plays a supportive role, and roll is carried on support roller can produce relative rotary motion with support roller.Floral disc 15 clamps the homalocephalus of the driving end of roll, and this roll is by the floral disc driven rotary.This kind of lathe can not use tailstock to carry out the roll clamping, therefore can process longer, heavier roll.But, there are the following problems without the tailstock roll lathe for this kind of modified: because the homalocephalus of roll is clamped by floral disc, therefore the axis that roll can only lap-ups dish rotation, when if self axis of the roll of clamping on this lathe does not overlap with the axis of floral disc, the roll of rotation just can produce and impact support roller, support roller is caused to damage, and affect the machining accuracy of rolling face, therefore roll is when clamping, floral disc can not be fixedly clamped the homalocephalus of roll, so that roll when rotated can automatic capturing, make axis keep overlapping with the floral disc axis.But, if floral disc is not fixedly clamped the homalocephalus of roll, due to the effect that there is no tailstock centre, roll may produce and move axially in rotary course.

Summary of the invention

The purpose of this utility model is to provide a kind of fixture for large-scale roller processing, with its by the roll clamping on the roll lathe without tailstock after improving, add man-hour at roller rotational, can make roll axis and floral disc axis keep overlapping, can prevent that again roll from producing and moving axially in rotary course.

Fixture for large-scale roller processing described in the utility model, comprise chuck, spacing anchor ear and pull bar, chuck is comprised of the disk body combined as a whole, two clamps and clamp column, clamp and clamp column lay respectively at the both ends of the surface of disk body vertical with disk body, two clamps are parallel to each other, and with clamp column axial line symmetry, described spacing anchor ear is connected with described disk body with the nut on being screwed in pull bar by pull bar, make spacing anchor ear and chuck coaxial line, and pull bar and nut have limited the ultimate range between chuck and spacing anchor ear.

Preferably, the end that pull bar is interspersed in described disk body is connected with two nuts, and these two nuts lay respectively at the both sides of disk body, and this end of pull bar is fixed on disk body; The end that pull bar is interspersed in spacing anchor ear is connected with a nut, and this nut is positioned at the outside of spacing anchor ear.

Preferably, described spacing anchor ear consists of two semi-annular shape hoop bodies.

This fixture in use, intending processing roll is supported on after described improvement without on the support roller on tailstock roll lathe lathe bed, its driving end homalocephalus is between two clamps of described chuck, and, distance between two clamps should be slightly larger than the thickness of roll driving end homalocephalus, the clamp column of chuck is clamped by the claw on floral disc, spacing anchor ear cuff in the annular groove of roll driving end, with this annular groove matched in clearance.

Chuck is by the floral disc driven rotary, because the spacing of two clamps is greater than the thickness of roll driving end homalocephalus, thereby make there is gap between two clamps and roll driving end homalocephalus, therefore clamp can only breaker roll driving end homalocephalus output torque, drive roller rotational, and can not limit the free degree of the radial direction of driving end homalocephalus, like this, roll just can carry out automatic capturing in rotary course, makes roll axis and floral disc axis keep overlapping, thereby guarantees that roll is all the time around himself axis rotation.And spacing anchor ear cuff is in the annular groove of roll driving end, it is connected with disk body with the nut on being screwed in pull bar by pull bar, because pull bar and nut have limited the ultimate range between chuck and spacing anchor ear, therefore spacing anchor ear can limit moving axially of roll, guarantee that roll can not produce axial float.

Large-scale roller is by fixture described in the utility model, after improving without the tailstock roll lathe on while being processed, roll can carry out automatic capturing in rotary course, make roll axis keep overlapping with the floral disc axis, can also prevent that roll from producing and moving axially in rotary course simultaneously, therefore machining accuracy that can breaker roll has a negative impact, and has guaranteed the crudy of roll.

The accompanying drawing explanation

Fig. 1 is front view of the present utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the mounting structure schematic diagram of the utility model and roll;

Fig. 4 is the profile of Fig. 3;

Fig. 5 is along the cutaway view of A-A line in Fig. 3;

Fig. 6 is the front view of roll;

Fig. 7 is without the top view of tailstock roll lathe after improving;

Fig. 8 is working state schematic representation of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail:

As Fig. 1, the fixture for large-scale roller processing shown in Fig. 2, comprise chuck, spacing anchor ear 1 and two pull bars 2, this chuck is by the disk body 3 combined as a whole, two clamps 4 and clamp column 5 form, clamp 4 and clamp column 5 lay respectively at the both ends of the surface of disk body 3 vertical with disk body, two clamps 4 are parallel to each other, and with clamp column 5 axial line symmetries, the spacing of two clamps 4 is greater than the thickness of intending processing roll driving end homalocephalus 10, described spacing anchor ear 1 consists of two semi-annular shape hoop bodies, one end of pull bar 2 is interspersed in described disk body 3, this end is connected with two nuts 6, these two nuts 6 lay respectively at the both sides of disk body 3, pull bar 2 these ends are fixed on disk body 3, the other end of pull bar 2 is interspersed in spacing anchor ear 1, this end is connected with a nut 6, this nut 6 is positioned at the outside of spacing anchor ear 1, thereby spacing anchor ear 1 is connected with disk body 3 with the nut 6 on being screwed in pull bar 2 by pull bar 2, make spacing anchor ear 1 and chuck coaxial line, and pull bar 2 and nut 6 have limited the ultimate range between chuck and spacing anchor ear 1.Two pull bars 2 angle with 180 ° on chuck and spacing anchor ear 1 is arranged.

As shown in Figure 6, the roll 7 of plan processing comprises active section 8, bearing section 9, driving end homalocephalus 10 and driving end annular groove 11.As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 8, spacing anchor ear 1 cuff of above-mentioned fixture is in roll driving end annular groove 11, driving end homalocephalus 10 is between two clamps 4 of chuck, by pull bar 2, disk body 3 is connected with spacing anchor ear 1, make roll 7 by axial limiting, the clamp column 5 of chuck is clamped by floral disc 15, and roll 7 is supported on support roller 13 by its bearing section 9.

Claims (3)

1. the fixture for large-scale roller processing, it is characterized in that: comprise chuck, spacing anchor ear (1) and pull bar (2), chuck is by the disk body combined as a whole (3), two clamps (4) and clamp column (5) form, clamp and clamp column lay respectively at the both ends of the surface of disk body vertical with disk body, two clamps are parallel to each other, and with clamp column axial line symmetry, described spacing anchor ear is connected with described disk body with the nut on being screwed in pull bar by pull bar, make spacing anchor ear and chuck coaxial line, and pull bar and nut have limited the ultimate range between chuck and spacing anchor ear.

2. the fixture for large-scale roller processing according to claim 1, it is characterized in that: the end that pull bar (2) is interspersed in described disk body (3) is connected with two nuts (6), these two nuts lay respectively at the both sides of disk body, and this end of pull bar is fixed on disk body; The end that pull bar is interspersed in spacing anchor ear (1) is connected with a nut, and this nut is positioned at the outside of spacing anchor ear.

3. the fixture for large-scale roller processing according to claim 1 and 2, it is characterized in that: described spacing anchor ear (1) consists of two semi-annular shape hoop bodies.

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