阅读说明：本技术 用于小空间腔体内壁上内螺纹加工用刀具夹装辅具 (Tool clamping auxiliary tool for processing internal threads on inner wall of small-space cavity ) 是由 李金刚 海卫峰 殷德武 刘利勇 王晓华 于 2020-12-17 设计创作，主要内容包括：提供一种用于小空间腔体内壁上内螺纹加工用刀具夹装辅具,在安装座上端内部安装有交错轴旋转传动装置,交错轴旋转传动装置与刀头端伸出安装座一侧侧壁设置的刀具固定连接,交错轴旋转传动装置下端与位于安装座下方并伸入安装座内部的输入轴上端固定连接,驱动输入轴转动后实现与输入轴垂直的刀具的旋转。本发明通过驱动输入轴转动后实现与输入轴垂直的刀具的旋转,将原本的小空间腔体轴线平行方向的转动转化为垂直方向的转动,有效的解决了小空间内腔垂直方向内螺纹加工难度大的问题,使用攻丝机或手摇钻作为动力输入,简化了此类内螺纹加工的难度,保证了内螺纹与小空间内腔的垂直度,加工精度和加工效率均得到了提高,具有较高的推广应用价值。(The utility model provides a be used for interior thread processing to press from both sides tool holder and adorn assistive device for on little space cavity inner wall, internally mounted has the rotatory transmission of staggered axle in mount pad upper end, the rotatory transmission of staggered axle and the cutter fixed connection that the tool bit end stretches out mount pad one side lateral wall and set up, the rotatory transmission of staggered axle lower extreme and the input shaft upper end fixed connection who is located the mount pad below and stretches into the mount pad inside, the rotation of the back realization and input shaft vertically cutter of drive input shaft rotation. According to the invention, the rotation of the cutter perpendicular to the input shaft is realized after the input shaft is driven to rotate, the rotation in the parallel direction of the axis of the original small-space cavity is converted into the rotation in the perpendicular direction, the problem of high difficulty in processing the internal thread in the perpendicular direction of the small-space inner cavity is effectively solved, the tapping machine or the hand drill is used as power input, the difficulty in processing the internal thread is simplified, the perpendicularity between the internal thread and the small-space inner cavity is ensured, the processing precision and the processing efficiency are improved, and the popularization and application values are higher.)

1. Be used for interior thread processing to press from both sides utensil of assisting with cutter on the little space cavity inner wall, its characterized in that: including mount pad (1), mount pad (1) upper end internally mounted has crisscross axle rotary transmission device, crisscross axle rotary transmission device stretches out cutter (2) fixed connection that mount pad (1) one side lateral wall set up with the tool bit end, crisscross axle rotary transmission device lower extreme with be located mount pad (1) below and stretch into mount pad (1) inside input shaft (3) upper end fixed connection, drive realize after input shaft (3) rotate with the rotation of input shaft (3) vertically cutter (2).

2. The tool clamping auxiliary tool for processing the internal thread on the inner wall of the small-space cavity according to claim 1, wherein: the staggered shaft rotary transmission device comprises a worm wheel (4) and a worm (5), wherein a mounting groove (8) is formed in the side wall of one side of the mounting seat (1) and is communicated with a avoiding hole (7) and the mounting groove (8) in the side wall of the other side of the mounting seat (1), the worm wheel (4) is rotatably mounted in the mounting groove (8) through a bearing (6), the end part of the worm wheel extends into the avoiding hole (7), a cutter (2) and the worm wheel (4) are fixedly connected, the cutter head end of the worm wheel extends out of the mounting seat (1), the lower end face of the mounting seat (1) is provided with a unthreaded hole communicated with the mounting groove (8) and is positioned in the mounting seat (1) and a positioning hole (11) of the upper end face of the worm (1) and the lower end of the worm (5) matched with the worm wheel (4), the lower end of the unthreaded hole is matched with the stepped input shaft (3) and the stepped hole and then extends into the unthreaded hole and is fixedly connected, the cover plate (9) which is sleeved on the cutter (2) and fixed on the side wall of one side of the mounting seat (1) covers and seals the notch of the mounting groove (8).

3. The tool clamping auxiliary tool for processing the internal thread on the inner wall of the small-space cavity according to claim 2, wherein: the upper end face of the input shaft (3) is provided with a connecting hole (10), the lower end of the worm (5) is inserted into the connecting hole (10), and the worm (5) is fixedly connected with the input shaft (3) through a pin.

4. The tool clamping auxiliary tool for processing the internal thread on the inner wall of the small-space cavity according to claim 2, wherein: the cover plate (9) is fixed on the side wall of one side of the mounting seat (1) through screws.

5. The tool clamping auxiliary tool for processing the internal thread on the inner wall of the small-space cavity according to claim 2, 3 or 4, wherein: the mounting seat (1) and the cover plate (9) are made of aluminum alloy materials.

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a tool clamping auxiliary tool for machining internal threads on the inner wall of a small-space cavity.

Background

At present, in the little space cavity, apart from the nearer processing of the nearer vertical direction internal thread of cavity lateral wall, because at the cavity inboardly, perpendicular to cavity lateral wall, can't be through milling machining center, tapping machine, hand drill etc. realize, and because the space is little, it is nearer apart from the cavity lateral wall, the operation space is narrow and small when using the spanner, hand tools such as hinge bar, efficiency is extremely low, and can't guarantee the verticality of screw tap and cavity lateral wall, cause the internal thread and the lateral part out of plumb of processing very easily, influence the use, therefore, to above-mentioned problem, it is necessary to improve.

Disclosure of Invention

The technical problems solved by the invention are as follows: the cutter clamping auxiliary tool for processing the internal thread on the inner wall of the small-space cavity is provided, the staggered shaft rotary transmission device fixedly connected with the cutter arranged on the side wall of one side of the installation seat extending out of the cutter head end is arranged in the upper end of the installation seat, the input shaft which is positioned below the installation seat and extends into the installation seat is fixedly connected with the lower end of the staggered shaft rotary transmission device, the rotation of the cutter vertical to the input shaft is realized by driving the input shaft to rotate, the original rotation of the axis of the small-space cavity in the parallel direction is converted into the rotation in the vertical direction, the problem of high difficulty in processing the internal thread in the vertical direction of the inner cavity of the small space is effectively solved, the structure is simple, the use is convenient, the tapping machine or the hand drill is used as power input, the difficulty in processing the internal thread is simplified, the perpendicularity of the internal thread and the inner cavity of the small, has higher popularization and application value.

The technical scheme adopted by the invention is as follows: a cutter presss from both sides dress and assists utensil for interior thread machining on the little space cavity inner wall, including the mount pad, mount pad upper end internally mounted has the rotatory transmission of staggered axle, the rotatory transmission of staggered axle stretches out the cutter fixed connection that mount pad one side lateral wall set up with the tool bit end, the rotatory transmission of staggered axle lower extreme with be located the mount pad below and stretch into the inside input shaft upper end fixed connection of mount pad, drive realize after the input shaft rotates with the rotation of input shaft vertically cutter.

Wherein, crisscross rotatory transmission of axle includes worm wheel and worm, the system has the mounting groove and locates dodge hole and mounting groove intercommunication on the mounting seat opposite side lateral wall on the lateral wall of mount pad one side, the worm wheel passes through the bearing and rotates to be installed in the mounting groove and the tip stretches into dodge downthehole and the cutter and the worm wheel fixed connection that the mount pad set up is stretched out to the tool bit end, terminal surface system has the unthreaded hole that communicates with the mounting groove and is located the mount pad inside and with the worm upper end of worm wheel adaptation in the locating hole of mount pad up end and the lower extreme stretches into the unthreaded hole under the mount pad, the unthreaded hole lower extreme stretches into the unthreaded hole behind input shaft and the unthreaded hole adaptation of shoulder hole and step-like and with worm lower extreme fixed connection, the apron on the cutter and be fixed in on the lateral wall of mount.

Furthermore, a connecting hole is formed in the upper end face of the input shaft, the lower end of the worm is inserted into the connecting hole, and the worm is fixedly connected with the input shaft through a pin.

Further, the cover plate is fixed on one side wall of the mounting seat through screws.

Further, the mounting seat and the cover plate are made of aluminum alloy materials.

Compared with the prior art, the invention has the advantages that:

1. according to the technical scheme, the staggered shaft rotary transmission device fixedly connected with the cutter arranged on the side wall of the side, extending out of the mounting seat, of the cutter head end is arranged in the upper end of the mounting seat, the input shaft which is positioned below the mounting seat and extends into the mounting seat is fixedly connected with the lower end of the staggered shaft rotary transmission device, the rotation of the cutter perpendicular to the input shaft is realized by driving the input shaft to rotate, the rotation of the original small-space cavity in the parallel direction of the axis is converted into the rotation in the perpendicular direction, the problem of high difficulty in processing internal threads in the perpendicular direction of the small-space cavity is effectively solved, and the structure is simple and convenient to use;

2. according to the technical scheme, the worm wheel is rotatably arranged in the mounting groove through the two bearings, so that the worm wheel is limited, friction is reduced, the rotating efficiency is higher, and the service life is prolonged;

3. according to the technical scheme, the tapping machine or the hand drill is used as power input of the input shaft, the difficulty of processing the internal thread is simplified, the perpendicularity of the internal thread and a small-space inner cavity is guaranteed, the processing precision and the processing efficiency are improved, and the high popularization and application value is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the mounting structure of the cutter on the mounting seat.

Detailed Description

In the following, an embodiment of the present invention will be described in conjunction with fig. 1-2, so as to clearly and completely describe the technical solutions, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, but not all of the embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The tool clamping auxiliary tool for processing the internal thread on the inner wall of the small-space cavity comprises a mounting seat 1, wherein a staggered shaft rotary transmission device is arranged in the upper end of the mounting seat 1 and fixedly connected with a tool 2 arranged at the side wall of one side of the mounting seat 1, which extends out of the tool bit end, the lower end of the staggered shaft rotary transmission device is fixedly connected with the upper end of an input shaft 3 which is positioned below the mounting seat 1 and extends into the mounting seat 1, and the rotation of the tool 2 vertical to the input shaft 3 is realized after the input shaft 3 is driven to rotate; in the structure, the staggered shaft rotary transmission device fixedly connected with the cutter 2 arranged on the side wall of the side, extending out of the mounting seat 1, of the cutter head end is arranged in the upper end of the mounting seat 1, the input shaft 3 which is positioned below the mounting seat 1 and extends into the mounting seat 1 is fixedly connected with the lower end of the staggered shaft rotary transmission device, the cutter 2 vertical to the input shaft is rotated after the input shaft 3 is driven to rotate, the original rotation of the small-space cavity in the parallel direction of the axis is converted into the rotation in the vertical direction, the problem of high difficulty in processing the internal threads in the vertical direction of the small-space cavity is effectively solved, and the structure is simple and convenient to use; the tapping machine or the hand drill is used as the power input of the input shaft 3, the difficulty of the internal thread processing is simplified, the perpendicularity of the internal thread and the small space inner cavity is ensured, the processing precision and the processing efficiency are improved, and the high popularization and application value is achieved.

The specific structure of the staggered shaft rotary transmission device is as follows: the staggered shaft rotary transmission device comprises a worm wheel 4 and a worm 5, wherein a mounting groove 8 is formed in the side wall of one side of a mounting seat 1, and a dodging hole 7 and a mounting groove 8 which are formed in the side wall of the other side of the mounting seat 1 are communicated with each other, the worm wheel 4 is rotatably mounted in the mounting groove 8 through a bearing 6, the end part of the worm wheel extends into the dodging hole 7, the tool 2 and the worm wheel 4 are fixedly connected, the tool 2 is matched in the central hole of the worm wheel 4 and can be fixed on the tool 2 through screws, the lower end face of the mounting seat 1 is provided with a unthreaded hole communicated with the mounting groove 8, the upper end of the worm 5 matched with the worm wheel 4 is positioned in a positioning hole 11 of the upper end face of the mounting seat 1, the lower end of the unthreaded hole is matched with a stepped hole and an input shaft 3 and the stepped hole and then extends into the unthreaded hole and is, a cover plate 9 which is sleeved on the cutter 2 and fixed on the side wall of one side of the mounting seat 1 covers and seals the notch of the mounting groove 8; specifically, a connecting hole 10 is formed in the upper end face of the input shaft 3, the lower end of the worm 5 is inserted into the connecting hole 10, and the worm 5 is fixedly connected with the input shaft 3 through a pin; specifically, the cover plate 9 is fixed on the side wall of one side of the mounting base 1 through a screw; specifically, the mounting seat 1 and the cover plate 9 are made of aluminum alloy materials; in the structure, the worm wheel 4 is rotatably arranged in the mounting groove 8 through the two bearings 6, so that the worm wheel 4 is limited, friction is reduced, the rotating efficiency is higher, and the service life is prolonged;

besides the above structure, the staggered shaft rotary transmission device can also adopt a transmission structure of two bevel gears.

In the structure, the worm wheel 4 is made of stainless steel 2Cr13, the roughness is better, the torsion resistance and the friction resistance are better, and standard parts are selected for the two bearings 6 and other required parts such as screws.

During the use, after will screw bottom hole process number on the work piece, use this structure fixed number cutter 2 (screw tap), with 3 clamping of input shaft on hand drill or tapping machine's three-jaw chuck to make 1 upper end of mount pad and cutter 2 stretch into attack in the tight little space inner chamber, make cutter 2 aim at back drive input shaft 3 with the screw bottom hole and rotate, at this in-process, only need with mount pad 1 right can, easy operation and high efficiency.

Because the internal thread that will process is on little space cavity inside wall, perpendicular to little space cavity, and the tank wall of keeping away from the cavity both ends outside is nearer, and the distance of internal thread center apart from the tank wall is only 3.4mm, leads to the operating space of internal thread processing to be little, consequently both must guarantee sufficient intensity on the control of worm wheel size, can not too big, in order to prevent to interfere with the lateral wall, influence processing.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.