CN202655722U

CN202655722U - Adjustable and changeable tool bit module

Info

Publication number: CN202655722U
Application number: CN2012203246724U
Authority: CN
Inventors: 俞汉桥; 李文喜
Original assignee: XIANGYANG ZHENBEN TRANSMISSION EQUIPMENT CO Ltd
Current assignee: XIANGYANG ZHENBEN TRANSMISSION EQUIPMENT CO Ltd
Priority date: 2012-07-06
Filing date: 2012-07-06
Publication date: 2013-01-09
Anticipated expiration: 2022-07-06

Abstract

Disclosed is an adjustable and changeable tool bit module applied to circle shear facility in metallurgy industry. The step end face of a cutter shaft is provided with a convex spherical surface. An adjustable shaft washer is installed at the joint of the convex spherical surface of the cutter shaft and the step end face of the cutter shaft. The adjustable shaft washer is a column with concave spherical surface. The adjustable shaft washer is in spherical fit with the cutter shaft. A bulb screw two is installed on the excircle face of the adjustable shaft washer. A bulb screw one is installed on the excircle face of the cutter shaft. A tool bit body is locked on the cutter shaft by high strength screws, wherein the tool bit body is made of alloy material and is after hardening and tempering and nitrogen treatment. Due to the fact that the adjustable shaft washer is installed on the step end face of the cutter shaft, when the accuracy of the cutter shaft end face run-out is out of tolerance, the adjustable shaft washer and the cutter shaft can be adjusted by the bulb screws according to the measured value. After the end face run-out and the radial run-out requirements are met, the tool bit body is locked on the cutter shaft by the high strength screws. The adjustable and changeable tool bit module has the advantages of being high in accuracy, good in abrasion resistance and low in maintaining cost due to the fact that the tool bit body is in modular design. When abrasion of the tool bit body occurs, the tool bit body is easy to adjust and change according to the abrasion condition.

Description

Capable of regulating replaceable blade head module

Technical field

The utility model relates to the metallurgy industry technical field, is a kind of capable of regulating replaceable blade head module for rotary shear equipment specifically.

Background technology

Circle shear is the important finishing equipments such as rewinding line, galvanized wire, tinned wire in the metallurgical manufacturing industry, be mainly used in shearing strip side portion, control strip width size, limit section burr etc., wherein the strip side portion shearing quality depends primarily on the mechanical precision of circle shear, so accurate equipment adjustment is extremely important.Cutter shaft is one of rotary shear equipment core component, main shaft when rotated, its end face run-out and circular runout are the main causes that affects shearing quality, and behind the equipment use some cycles, blade needs often to change, and therefore, there is loss of significance in various degree the blade installation position.

The cutter shaft structure of prior art as shown in Figure 1, cutter shaft 2 is monoblock types, blade 1 is directly installed on the cutter shaft 2, cutter shaft 2 is longer, diameter is larger, adopts surface hardening, but in use has following defective:

1, end face run-out low precision: because the processing of cutter shaft step surface is to be formed by the abrasive wheel end face grinding on the cylindrical grinder, and is subjected to the Accuracy of circle shear bearing and bearing block, blade 1 can only reach 0.01mm with the perpendicularity of cutter shaft 2 after the accumulation;

2, anti-wear performance is poor: there is the soft band that quenches in the position surface hardening of the installation blade 1 of cutter shaft 2, and often dismounting, and surperficial easy-to-draw hurt is bad;

3, maintenance cost is high: when the end face run-out precision is overproof when cutter shaft 2 is installed, can only again dismantle adjustment, and cutter shaft 2 needs integral replacing when damaging, maintenance time is long.

Summary of the invention

For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of capable of regulating replaceable blade head module, realize can adjusting end face run-out when improving the end face run-out precision, and the body of tool bit material adopts the high alloy material, whole modified rear nitrogen treatment, it is convenient to change.

For achieving the above object, the step end face of the utility model cutter shaft is with the convexity sphere, with cutter shaft convexity sphere joint adjustable blowout patche is housed, adjustable blowout patche is the cylinder with concave spherical surface, adjustable blowout patche is that sphere cooperates with cutter shaft, ball screw two is contained in the periphery of adjustable blowout patche, and ball screw one is contained in the periphery of cutter shaft, and high-strength screw will be locked on the cutter shaft with the alloy material and through body of tool bit modified, nitrogen treatment.

The step end face of the utility model cutter shaft is equipped with adjustable blowout patche, when the precision of cutter shaft end face run-out is overproof, according to measured value, available ball screw is adjusted adjustable blowout patche and cutter shaft, after reaching the requirement of end face run-out and circular runout, with high-strength screw body of tool bit is locked on the cutter shaft, body of tool bit adopts whole modified rear nitrogen treatment simultaneously, can improve surface abrasion resistance; When loss of significance appears in body of tool bit, can be directly the body of tool bit position be changed, reach and improve precision that insert end faces beats and the requirement of shearing quality.

The utility model compared with prior art has the following advantages.

1, precision is high: can adjust by adjustable blowout patche the precision of cutter shaft end face run-out, make the precision of cutter shaft end face run-out can reach 0.001mm, Effective Raise shearing quality.

2, wearability is good: body of tool bit adopts the manufacturing of high alloy material, nitrogen treatment after integral body is modified, and surface abrasion resistance is good.

3, maintenance cost is low: body of tool bit adopts modularized design, after wearing and tearing appear in body of tool bit, can change according to convenient adjustment of wear condition.

Description of drawings

Fig. 1 is existing body of tool bit structure diagram.

Fig. 2 is structure diagram of the present utility model.

The specific embodiment

As shown in Figure 2, cutter shaft 8 is step cylinders, the step end face of cutter shaft 8 is with the convexity sphere, with cutter shaft 8 convexity sphere joints adjustable blowout patche 7 is housed, adjustable blowout patche 7 is the cylinder with concave spherical surface, adjustable blowout patche 7 cooperates for sphere with cutter shaft 8, adjustable blowout patche 7 adopts fine turning lathe to process with cutter shaft 8, ball screw 29 is contained in the periphery of adjustable blowout patche 7, ball screw 1 is contained in the periphery of cutter shaft 8, the high rigidity ball screw is with holding screw and fastening the forming of semicircle steel ball interference combination, when blade 1 is packed into after the adjustment of the end face run-out of body of tool bit 5 and circular runout reaches requirement, with the high-strength screw 3 of spring washer 4 body of tool bit 5 is locked on the cutter shaft 8; Body of tool bit 5 is cylinder with the level, uses the alloy material manufacturing, and through modified, nitrogen treatment, the oral area transition position of body of tool bit 5 has reduced 0.1mm than the external diameter of blade 1, help blade 1 to install, behind body of tool bit 5 surface abrasions, can be conveniently with its dismounting and change.

Set-up procedure of the present utility model:

1, light tight end face high-strength screw 3;

2, adjust high rigidity ball screw 1 to the cylindrical circular runout of cutter shaft 8＜0.002, tighten ball screw 1;

3, proofread and correct the end face run-out of cutter shaft 8 to requiring, with the symmetrical fastening end face high-strength screw 3 of torque spanner with soft rod;

The cylindrical circular runout of 4, proofreading and correct simultaneously cutter shaft 8 is to requiring, and symmetry is tightened ball screw 29, last symmetrical fastening end face high-strength screw 3.

Claims

1. capable of regulating replaceable blade head module, comprise cutter shaft (8), it is characterized in that: the step end face of cutter shaft (8) is with the convexity sphere, with cutter shaft (8) convexity sphere joint adjustable blowout patche (7) is housed, adjustable blowout patche (7) is the cylinder with concave spherical surface, adjustable blowout patche (7) cooperates for sphere with cutter shaft (8), ball screw two (9) is contained in the periphery of adjustable blowout patche (7), ball screw one (6) is contained in the periphery of cutter shaft (8), and high-strength screw (3) will be with the alloy material and through modified, the body of tool bit of nitrogen treatment (5) is locked on the cutter shaft (8).