Roller shaft head end face machining cutter

Abstract

The utility model discloses a roller shaft head end face machining tool, which belongs to the technical field of roller manufacturing and comprises a tool bar provided with a tool bit, one end of the tool bar is sequentially provided with a transition section and a clamping section for clamping the tool bit, the lower side wall of the transition section is flush with the lower side wall of the tool bar, and the upper side wall of the transition section is lower than the upper side wall of the tool bar. The included angle between the upper side wall of the transition section and the left side wall of the cutter bar is 77 degrees, and the included angle between the upper side wall of the clamping section and the vertical direction is 50 degrees; a supporting rod for eliminating tremor of the cutter bar, the transition section and the clamping section is arranged on the rear side wall of the cutter bar, and the supporting rod is in threaded connection with a supporting screw making contact with a machine tool cutter table. According to the utility model, the problem of interference between the cutter and the center of the tailstock of the machine tool is avoided by adjusting the geometric angle of the auxiliary rear cutter surface of the cutter.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of roll manufacturing technology, and specifically relates to a roll shaft head end face machining tool. BACKGROUND

[0002] Rolls are the core components in the steel rolling equipment, and are mainly used for rolling steel. It generates pressure through rolling to make the metal produce continuous plastic deformation. The roll mainly consists of three parts: roll body, roll neck and shaft head. The roll body is the part that actually participates in rolling metal, and it can be a smooth cylinder or a surface with rolling grooves. The roll neck is installed in the bearing, and the rolling force is transmitted to the rack through the bearing seat and the press-down device. The transmission end shaft head is connected with the gear seat through the connecting shaft, and the rotating torque of the motor is transmitted to the roll.

[0003] The roll is mainly divided into two categories: hot roll and cold roll. The cold roll is generally used for rolling plate and strip, and needs to have sufficient strength, uniform high hardness and good surface quality to withstand extremely high rolling force, ensure sufficient wear resistance and meet the rolling precision requirements. The material of the cold roll is mainly high-carbon chromium steel. Carbon is the main strengthening element, and chromium promotes the amount of undissolved carbide and hardness, which is beneficial to improve wear resistance.

[0004] The conventional machining process of the shaft head end face of the cold roll is: semi-finishing turning diameter and length with a reserved amount, roll body quenching, finishing turning each part of the outer circle and the length of each step, leaving the reserved amount at the two end shaft heads, finishing the end face of the two end shaft heads by using the center support form of the finishing machine tool to ensure the length size, and then carrying out the lower turning and grinding process. In the above machining process, interference will occur between the tool and the machine tool tail seat center. Therefore, the machine tool auxiliary time is long and needs to be frequently replaced, and the accuracy of the shaft head end face, such as the flatness, perpendicularity to each part of the outer circle and roughness, is poor due to the influence of the rotation circle jump of the finishing machine tool and the accuracy of the center support, which affects the positioning accuracy and product appearance quality of the subsequent turning and milling machining center and grinding machine. UTILITY MODEL CONTENTS

[0005] In order to solve the problem of interference between the tool and the machine tool tail seat center in the machining process of the prior art, the utility model provides a roll shaft head end face machining tool, which adjusts the geometric angle of the tool vice rear face to avoid the interference problem between the tool and the machine tool tail seat center.

[0006] The technical scheme of the roll shaft head end face machining tool is as follows:

[0007] A roll shaft head end face processing tool, comprising a tool bar provided with a tool head, characterized in that: one end of the tool bar is sequentially provided with a transition section and a clamping section clamping the tool head, the lower side wall of the transition section is flush with the lower side wall of the tool bar, the included angle between the upper side wall of the transition section and the left side wall or the right side wall of the tool bar is 77°, and the included angle between the upper side wall of the clamping section and the vertical direction is 50°.

[0008] The rear side wall of the tool bar is provided with a support rod eliminating the tremor of the tool bar, the transition section and the clamping section, and the support rod is threadedly connected with a support screw in contact with the tool rest of the machine tool.

[0009] Further improvement of the technical scheme of the utility model lies in that: the tool head is detachably connected with the clamping section through bolts.

[0010] Further improvement of the technical scheme of the utility model lies in that: the support rod is provided with a threaded hole matched with the support screw.

[0011] Further improvement of the technical scheme of the utility model lies in that: the support rod is arranged on the rear side wall of the tool bar close to one end of the transition section.

[0012] Further improvement of the technical scheme of the utility model lies in that: the lower side wall of the clamping section is arranged in an inclined upward manner.

[0013] Further improvement of the technical scheme of the utility model lies in that: the clamping section is provided with a circularly-arranged air slot at a position corresponding to the end of the tool head, which prevents the end of the tool head from being abraded by tremor.

[0014] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model includes:

[0015] In the utility model, by adjusting the included angle between the upper side wall of the transition section and the left side wall of the tool bar to 77° and adjusting the included angle between the upper side wall of the clamping section and the vertical direction to 50°, interference between the utility model and the tailstock of the machine tool can be avoided during the roll shaft head end face processing, so that the step of placing the roll on the precision flat machine tool through the center frame for processing is omitted during the roll shaft head end face processing, thereby the machine tool does not need to be frequently replaced, the roll shaft head end face processing can be shortened by 40 minutes.

[0016] Meanwhile, since the step of placing the roll on the precision flat machine tool through the center frame for processing is omitted during the use of the utility model, the poor precision of the flatness of the shaft head end face after processing, the perpendicularity of each part to the outer circle, the roughness of processing and other precision caused by the rotation circle jump of the precision flat machine tool and the precision of the center frame is avoided, and the positioning precision of the subsequent turning and milling processing center, grinding machine and other processes and the appearance quality of the product are affected.

[0017] The utility model discloses a support screw and lathe tool rest contact can further fix the support rod, the tool bar, the transition section and the clamping section to the utmost to eliminate the tremor in the processing caused by the utility model using process overhanging too long, guarantees the rolling mill two end shaft head end face processing precision.

[0018] The utility model discloses a hollow groove can avoid the problem that the end of the tool bit and the clamping section wear due to the utility model tremor in the using. DRAWINGS

[0019] Figure 1 It is a kind of structure schematic diagram of the utility model discloses a rolling mill shaft head end face processing tool;

[0020] Figure 2 It is a kind of structure schematic diagram of the utility model discloses a rolling mill shaft head end face processing tool Figure 1 A direction structure schematic diagram of;

[0021] Figure 3 It is a kind of structure schematic diagram of the utility model discloses a rolling mill shaft head end face processing tool installation time;

[0022] Figure 4 It is a kind of structure schematic diagram of the utility model discloses a rolling mill shaft head end face processing tool use time.

[0023] In the drawings: 1, tool bar;11, support rod;12, support screw;13, threaded hole;

[0024] 2, transition section;3, clamping section;31, hollow groove;

[0025] 4, tool bit;5, lathe tool rest;6, rolling mill;

[0026] 7, lathe tailstock;71, centre. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantage of the utility model more clear and obvious, below combining with concrete implementation and referring to the drawings, the utility model is further detailed. In the following explanation, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] Firstly refer to Figure 1 、 Figure 2 And Figure 3 Can know, the utility model includes tool bar 1, in this embodiment, the left side wall of tool bar 1 is fixedly welded with transition section 2, the upper side wall of transition section 2 is lower than the upper side wall of tool bar 1, and the included angle between the upper side wall of transition section 2 and the left side wall, right side wall and vertical direction of tool bar 1 is 77 °, while the lower side wall of transition section 2 is flush with the lower side wall of tool bar 1.

[0029] With reference to Figure 1 It can be known that the clamping section 3 is fixedly welded on the side of the transition section 2 away from the tool bar 1, the upper side wall of the clamping section 3 is 50° with the vertical direction, and the lower side wall of the clamping section 3 is arranged in an inclined upward manner; an installation groove for installing the tool head 4 is arranged on the end of the clamping section 3 away from the transition section 2, the tool head 4 is installed in the installation groove through bolts, and a hollow groove 31 in communication with the installation groove is arranged on the clamping section 3, the hollow groove 31 is circular, and when the tool head 4 is installed in the installation groove, one end of the tool head 4 is located in the hollow groove 31.

[0030] With reference to Figure 1 , Figure 2 and Figure 3 It can be known that the support rod 11 perpendicular to the tool bar 1 is fixedly connected to the rear side wall of the tool bar 1, in the embodiment, the support rod 11 is located on the rear side wall of the end of the tool bar 1 connected with the transition section 2, and the threaded hole 13 penetrating through the support rod 11 is arranged on the support rod 11, and the support screw 12 is threadedly connected to the threaded hole 13.

[0031] The working principle of the roll shaft head end face machining tool is as follows: the projection length of the whole tool is 320 mm, the length of the tool bar 1 is 230 mm, and the projection length of the transition section 2+the clamping section 3+the tool head 4 is 90 mm, wherein the projection length of the clamping section 3+the tool head 4 is 35 mm; when the tool head 4 is installed on the clamping section 3, the lower side wall of the tool head 4 is flush with the lower side wall of the clamping section 3, and the lower side wall of the tool head 4 and the clamping section 3 is 90° with the vertical direction.

[0032] When the embodiment is used, first, the utility model is fixedly clamped on the machine tool tool table 5, and then the support screw 12 is rotated until the end of the support screw 12 is in close contact with the machine tool tool table 5.

[0033] The feeding direction of the roll 6 shaft head end face when the embodiment is processed is shown as the arrow direction in Figure 4 It can be known from Figure 4 When the utility model is used to process the roll 6 shaft head end face, the utility model will not interfere with the machine tool tailstock 7 center 71, so that the step of placing the roll 6 on the precision flat machine tool through the center frame for processing is omitted in the roll 6 shaft head end face processing process.

[0034] In the above embodiment, the utility model provides a kind of roll shaft head end face processing tool, the utility model in it is adjusted to 77 ° by the included angle between the upper side wall of transition section and the left side wall of tool bar, and the included angle between the upper side wall of clamping section and vertical direction is adjusted to 50 °, it can avoid the interference between the utility model and lathe tailstock in the process of roll shaft head end face processing, so that the step of placing roll through center stand on precision flat machine tool for processing is saved in the process of roll shaft head end face processing, so that machine tool does not need to be frequently replaced, it can shorten 40 minutes of roll shaft head end face processing.

[0035] The above-described embodiments are merely preferred embodiments of the utility model, and do not limit the concept and scope of the utility model. Without departing from the design concept of the utility model, various modifications and improvements to the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope of the utility model, and the technical content claimed by the utility model has been fully recorded in the claims.

Claims

1. A roll neck end face machining tool comprising a tool shank (1) to which a tool head (4) is attached, characterized in that: One end of the tool bar (1) is provided with a transition section (2) and a clamping section (3) of the clamping tool head (4) in sequence, the lower side wall of the transition section (2) is flush with the lower side wall of the tool bar (1), the upper side wall of the transition section (2) is lower than the upper side wall of the tool bar (1), and the included angle between the upper side wall of the transition section (2) and the left side wall of the tool bar (1) is 77°, and the included angle between the upper side wall of the clamping section (3) and the vertical direction is 50°; The rear side wall of the tool bar (1) is provided with a support rod (11) for eliminating the vibration of the tool bar (1), the transition section (2) and the clamping section (3), and the support rod (11) is threadedly connected with a support screw (12) in contact with the machine tool tool rest (5).

2. A roll neck end face machining tool according to claim 1, characterized in that: The tool head (4) is detachably connected with the clamping section (3) through bolts.

3. A roll neck end face machining tool according to claim 1, characterized in that: The support rod (11) is provided with a threaded hole (13) matched with the support screw (12).

4. A roll neck end face machining tool according to claim 1, characterized in that: The support rod (11) is arranged on the rear side wall of the tool bar (1) close to one end of the transition section (2).

5. A roll neck end face machining tool according to claim 1, characterized in that: The lower side wall of the clamping section (3) is arranged inclined upward.

6. A roll neck end face machining tool according to any one of claims 1 to 5, characterized in that: The clamping section (3) is provided with a circularly arranged air slot (31) at the position corresponding to the end of the tool head (4) to prevent the end of the tool head (4) from being worn by vibration. The tool head (4) is detachably connected with the clamping section (3) through bolts. The support rod (11) is provided with a threaded hole (13) matched with the support screw (12). The support rod (11) is arranged on the rear side wall of the tool bar (1) close to one end of the transition section (2). The lower side wall of the clamping section (3) is arranged inclined upward. The clamping section (3) is provided with a circularly arranged air slot (31) at the position corresponding to the end of the tool head (4) to prevent the end of the tool head (4) from being worn by vibration.

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