CN216705974U

CN216705974U - Miniature floating cutter

Info

Publication number: CN216705974U
Application number: CN202220354572.XU
Authority: CN
Inventors: 刘旭东; 刘国祥
Original assignee: Yingkou Changxin Pipe Manufacturing Co ltd
Current assignee: Yingkou Changxin Pipe Manufacturing Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-10
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a micro floating cutter, which comprises a base, wherein supports are fixedly arranged on the left side and the right side of the front surface of the base, a central shaft is assembled between the two supports, floating blocks are fixedly arranged on the left side and the right side of the outer wall of the central shaft, a hollow cylinder is fixedly arranged between the two floating blocks, a single-row radial bearing is assembled inside the hollow cylinder, a roller is assembled inside the single-row radial bearing, and an outer bevel cutter body is fixedly arranged on the upper side of the front end of the hollow cylinder. The inner groove is processed without increasing the thickness of the pipe fitting so as to ensure the uniformity of the processing of the truncated edge, and the waste of raw materials is reduced.

Description

Miniature floating cutter

Technical Field

The utility model belongs to the technical field of pipe fitting groove machining, and particularly provides a miniature floating tool.

Background

When the metal pipe fitting is subjected to groove machining, the truncated edge is required not to be too large or too small, so that the metal pipe fitting is within a certain tolerance range. Due to the particularity of the pipe fitting process, the mouth part of the pipe fitting cannot reach a nominal absolute value, so that the blunt edge cannot meet the standard requirement. In order to meet the requirement, the requirement can be met only by increasing the thickness of the pipe and installing three cutters on the cutter head to process an outer groove, a truncated edge and an inner groove respectively. However, the cutter is complicated to use and has low working efficiency, and the process needs to increase the thickness of the pipe, wastes energy and increases the production cost. Especially when the two ends of a small-diameter pipe fitting are simultaneously machined, the cutter can collide. In addition, because the shape of the pipe fitting has deviation, the pipe fitting is not absolutely round, and the processing of the groove and the truncated edge is influenced. Therefore, a micro floating tool which can process two ends of a pipe simultaneously, effectively perform groove processing along the shape of the pipe and can complete the groove processing required by the standard is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a miniature floating cutter.

In order to achieve the purpose, the utility model adopts the technical scheme that: miniature floating cutter, the on-line screen storage device comprises a base, the equal fixed mounting in the front surface left and right sides of base has the support, two be equipped with the center pin between the support, the equal fixed mounting in the outer wall left and right sides of center pin has the slider, two fixed mounting has hollow cylinder between the slider, the inside of hollow cylinder is equipped with single radial bearing, single radial bearing's inboard is equipped with the gyro wheel, and gyro wheel and base disalignment, be equipped with slider angle adjustment mechanism between the outer wall upside of hollow cylinder and the base, be equipped with feedback force adjustment mechanism between the outer wall downside of hollow cylinder and the base, the front end upside fixed mounting of hollow cylinder has the outer bevel connection cutter body, the front surface downside fixed mounting of base has the blade holder, the front end fixed mounting of blade holder has the blunt limit cutter body.

Further, the roller is divided into a front half part, a middle part and a rear half part, the middle part is a cylindrical block, the front half part is a conical body, and the rear half part is a cylindrical rod with the diameter smaller than that of the cylindrical block.

Further, the floating block angle adjusting mechanism comprises a first fixing plate, a stud and a floating block angle adjusting bolt, the first fixing plate is fixedly installed on the upper side of the outer wall of the hollow cylinder, the stud is fixedly installed on the upper side of the front surface of the base, the front end of the stud penetrates through the first fixing plate, the floating block angle adjusting bolt is in threaded connection with the stud, and the front surface of the floating block angle adjusting bolt is attached to the rear surface of the first fixing plate.

Further, feedback force adjustment mechanism includes second fixed plate, feedback force adjusting bolt, feedback force spring and flat board, second fixed plate fixed mounting is in the outer wall downside of hollow cylinder, and feedback force adjusting bolt spiro union in the front surface of second fixed plate, feedback force spring fixed mounting is in the front surface downside of base, and flat board fixed mounting is in the front end of feedback force spring, feedback force adjusting bolt's rear end is laminated in dull and stereotyped front surface.

Furthermore, a conical bearing is assembled between the floating block and the central shaft, and a gland is fixedly installed on the outer side wall of the floating block.

Furthermore, the miniature floating tool further comprises a cylindrical block and a screw, a threaded hole is formed in the rear end of the cylindrical rod of the roller, the screw penetrates through the cylindrical block and then is in threaded connection with the threaded hole, the front surface of the cylindrical block is attached to the inner ring of the single-row radial bearing, and an end cover is fixedly mounted at the upper end of the hollow cylinder.

Furthermore, the number of the single-row radial bearings is four, and the four single-row radial bearings are distributed on the outer wall of the cylindrical rod of the roller in parallel.

The beneficial effects of the utility model are as follows:

1. the outer side of the hollow cylinder body is provided with the floating block capable of deflecting along the central shaft, and the hollow cylinder body is provided with the floating block angle adjusting mechanism and the feedback force adjusting mechanism, so that the roller can deflect, the roller can effectively move to the inner side of the pipe fitting and roll along the inner wall of the pipe fitting under the driving of the base, and the outer groove cutter body can be ensured to accurately finish the outer groove machining.

2. The roller shape is set, and the floating block angle adjusting mechanism and the feedback force adjusting mechanism are matched, so that the device can be suitable for processing pipe fittings with various dimensions.

3. The utility model can evenly finish the processing of the external bevel and the truncated edge, thereby processing the internal bevel without increasing the thickness of the pipe fitting to ensure the even processing of the truncated edge and reducing the waste of raw materials.

4. According to the utility model, the arrangement of the roller, the outer bevel cutter body and the blunt cutter body ensures that the cutters do not collide when the two ends of the metal pipe fitting are simultaneously machined, so that the machining efficiency is improved, and the safety is increased.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a bottom cross-sectional view of the present invention.

Fig. 4 is a right side view of the roller of the present invention just contacting the workpiece.

The reference numerals include: 1. the device comprises a base, 2, a support, 3, a central shaft, 4, a slider, 5, a hollow cylinder, 6, a single-row radial bearing, 7, a roller, 8, a slider angle adjusting mechanism, 801, a first fixing plate, 802, a stud, 803, a slider angle adjusting bolt, 9, a feedback force adjusting mechanism, 901, a second fixing plate, 902, a feedback force adjusting bolt, 903, a feedback force spring, 904, a flat plate, 10, an outer bevel cutter body, 11, a cutter holder, 12, a blunt edge cutter body, 13, a conical bearing, 14, a gland, 15, an end cover, 16, a cylinder block, 17, a threaded hole, 18 and a screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the micro floating tool comprises a base 1, wherein the left side and the right side of the front surface of the base 1 are fixedly provided with brackets 2, a central shaft 3 is assembled between the two brackets 2, the left side and the right side of the outer wall of the central shaft 3 are fixedly provided with floating blocks 4, a hollow cylinder 5 is fixedly arranged between the two floating blocks 4, a single-row radial bearing 6 is assembled inside the hollow cylinder 5, the inner side of the single-row radial bearing 6 is provided with a roller 7, and gyro wheel 7 and base 1 disalignment, be equipped with slider angle adjustment mechanism 8 between the outer wall upside of hollow cylinder 5 and the base 1, be equipped with feedback force adjustment mechanism 9 between the outer wall downside of hollow cylinder 5 and the base 1, the front end upper side fixed mounting of hollow cylinder 5 has outer groove cutter body 10, and the front surface downside fixed mounting of base 1 has blade holder 11, and the front end fixed mounting of blade holder 11 has blunt edge cutter body 12.

The base 1 is installed on the blade disc of unit head main shaft front end, therefore when the unit head main shaft rotates, through the transmission, can drive gyro wheel 7, outer bevel cutter body 10 and blunt limit cutter body 12 finally and rotate, wherein the outer wall laminating of gyro wheel 7 front end in the inner wall of pipe fitting, outer bevel cutter body 10 is used for processing the outer bevel portion of pipe fitting tip, and blunt limit cutter body 12 is used for processing the blunt limit of pipe fitting tip.

During processing, the axis of the pipe fitting and the axis of the power head main shaft need to be ensured to be collinear, so that the processing precision is ensured.

Under the action of the single-row radial bearing 6, the roller 7 can rotate in the hollow cylinder 5, and then can roll along the inner wall of the pipe fitting, so that the inner wall of the pipe fitting cannot be abraded.

Slider 4 can deflect along center pin 3, and then drives gyro wheel 7 and outer groove cutter body 10 and deflect, and wherein slider angle adjustment mechanism 8 cooperates with feedback force adjustment mechanism 9, adjusts slider 4's initial position, deflection and reseing, consequently when the pipe fitting size has the deviation, makes gyro wheel 7 can paste the pipe fitting inner wall all the time and roll, and then guarantees that outer groove cutter body 10 can carry out effectual outer groove processing.

Because the deviation of the pipe fitting size is very small, the deflection angles of the roller 7, the outer bevel cutter body 10 and the floating block 4 caused by the pipe fitting size deviation are very small in the pipe fitting end machining process, and the outer bevel machining cannot be influenced.

The outer bevel cutter body 10 is a 37.5 degree cutter body.

The position of the truncated cutter body 12 on the cutter holder 11 can be adjusted to ensure that the processing size of the truncated edge is qualified.

The outer bevel cutter body 10 and the blunt edge cutter body 12 in the device occupy small space, so that when the device is used for simultaneously processing two ends of a pipe fitting, interference between the cutter bodies can not be formed, and the processing efficiency is improved.

Specifically, as shown in fig. 3, the roller 7 is divided into a front half, a middle half and a rear half, the middle half is a cylindrical block, the front half is a conical body, and the rear half is a cylindrical rod having a diameter smaller than that of the cylindrical block.

Specifically, as shown in fig. 1 and 4, the slider angle adjustment mechanism 8 includes a first fixing plate 801, a stud 802, and a slider angle adjustment bolt 803, the first fixing plate 801 is fixedly mounted on the upper side of the outer wall of the hollow cylinder 5, the stud 802 is fixedly mounted on the upper side of the front surface of the base 1, the front end of the stud 802 penetrates through the first fixing plate 801, the slider angle adjustment bolt 803 is screwed onto the stud 802, and the front surface of the slider angle adjustment bolt 803 is attached to the rear surface of the first fixing plate 801.

The initial position of the first fixing plate 801 can be adjusted by adjusting the position of the floating block angle adjusting bolt 803 on the stud 802, so that the initial positions of the floating block 4, the hollow cylinder 5 and the roller 7 can be adjusted, and when the roller 7 is just in contact with the end part of the pipe fitting, the contact point is the middle part of the conical surface of the conical body of the roller 7.

Specifically, as shown in fig. 1 and 4, the feedback force adjusting mechanism 9 includes a second fixing plate 901, a feedback force adjusting bolt 902, a feedback force spring 903, and a flat plate 904, the second fixing plate 901 is fixedly mounted on the lower side of the outer wall of the hollow cylinder 5, the feedback force adjusting bolt 902 is screwed to the front surface of the second fixing plate 901, the feedback force spring 903 is fixedly mounted on the lower side of the front surface of the base 1, the flat plate 904 is fixedly mounted on the front end of the feedback force spring 903, and the rear end of the feedback force adjusting bolt 902 is attached to the front surface of the flat plate 904.

The degree of compression of the feedback force spring 903 can be adjusted by adjusting the feedback force adjusting bolt 902, so that the feedback force spring 903 is always in a compression state, and the size of the contact force between the roller 7 and the inner wall of the pipe fitting can be adjusted.

When the device contacts the end part of the pipe fitting and continues to advance, the whole roller 7 can move into the pipe fitting, meanwhile, the floating block 4 can deflect and compress the feedback force spring 903, the elastic force of the feedback force spring 903 can ensure that the roller 7 is always attached to the inner wall of the pipe fitting, and then the outer bevel cutter body 10 is ensured to be effectively and accurately machined.

The feedback force adjusting mechanism 9 is matched with the floating block angle adjusting mechanism 8 to adjust the initial position, deflection and reset of the floating block 4, the hollow cylinder 5, the roller 7 and the outer bevel cutter body 10 of the device, and the device can be suitable for processing bevels and blunt edges of pipe fittings with various sizes by adjusting the feedback force adjusting mechanism 9 and the floating block angle adjusting mechanism 8.

Specifically, as shown in fig. 3, a conical bearing 13 is mounted between the slider 4 and the center shaft 3, and a cover 14 is fixedly mounted on the outer side wall of the slider 4, thereby ensuring smooth deflection of the slider 4 along the center shaft 3.

The gland 14 is used to adjust the clearance of the conical bearing 13 so that no axial clearance occurs between the slider 4 and the central shaft 3.

Specifically, as shown in fig. 3, the micro floating tool further includes a cylindrical block 16 and a screw 18, a threaded hole 17 is formed in the rear end of the cylindrical rod of the roller 7, the screw 18 penetrates through the cylindrical block 16 and then is screwed into the threaded hole 17, the front surface of the cylindrical block 16 is attached to the inner ring of the single-row radial bearing 6, an end cover 15 is fixedly mounted at the upper end of the hollow cylinder 5, and the hollow cylinder 5, the single-row radial bearing 6 and the roller 7 are assembled.

Specifically, as shown in fig. 3, the number of the single-row radial bearings 6 is four, four single-row radial bearings 6 are arranged in parallel on the outer wall of the cylindrical rod of the roller 7, and the four single-row radial bearings 6 ensure the flexibility of the roller 7 when rotating along the inner wall of the pipe.

The working principle is as follows: the miniature floating cutter is characterized in that a base 1 of the miniature floating cutter is installed on a cutter disc at the front end of a power head spindle and is driven to move by the power head, in the moving process of the miniature floating cutter, the middle part of a conical surface of a roller 7 can contact with the end part of a workpiece firstly and continue to advance, the roller 7 and a floating block 4 can deflect together, the roller 7 is enabled to move to the inner wall of a pipe fitting integrally under the action of a feedback force spring 903, the outer wall of the conical surface of the roller 7 can be attached to the inner wall of the pipe fitting, meanwhile, the miniature floating cutter rotates to enable the roller 7 to be attached to the inner wall of the pipe fitting to roll, in the process, an outer bevel cutter body 10 deflects together with the floating block 4 to complete outer bevel machining conforming to the shape of the pipe fitting, and a blunt edge cutter body 12 conducts blunt edge machining on the end part of the pipe fitting, so that the floating cutter can complete accurate machining, the machining efficiency is improved, and the loss of raw materials is reduced.

The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application range can be made by those skilled in the art without departing from the spirit of the present invention, and all changes that fall within the protective scope of the utility model are therefore considered to be within the scope of the utility model.

Claims

1. Miniature unsteady cutter, its characterized in that: comprises a base (1), wherein the left side and the right side of the front surface of the base (1) are fixedly provided with supports (2), a center shaft (3) is assembled between the two supports (2), floating blocks (4) are fixedly installed on the left side and the right side of the outer wall of the center shaft (3), a hollow cylinder (5) is fixedly installed between the two floating blocks (4), a single-row radial bearing (6) is assembled inside the hollow cylinder (5), a roller (7) is assembled on the inner side of the single-row radial bearing (6), the roller (7) is not coaxial with the base (1), a floating block angle adjusting mechanism (8) is assembled between the upper side of the outer wall of the hollow cylinder (5) and the base (1), a feedback force adjusting mechanism (9) is assembled between the lower side of the outer wall of the hollow cylinder (5) and the base (1), and an outer bevel cutter body (10) is fixedly installed on the upper side of the front end of the hollow cylinder (5), a tool apron (11) is fixedly mounted on the lower side of the front surface of the base (1), and a truncated cutter body (12) is fixedly mounted at the front end of the tool apron (11).

2. The micro floating tool as set forth in claim 1, wherein: the roller (7) is divided into a front half part, a middle part and a rear half part, the middle part is a cylindrical block, the front half part is a conical body, and the rear half part is a cylindrical rod with the diameter smaller than that of the cylindrical block.

3. The micro floating tool as set forth in claim 1, wherein: slider angle adjustment mechanism (8) include first fixed plate (801), double-screw bolt (802) and slider angle adjusting bolt (803), first fixed plate (801) fixed mounting is in the outer wall upside of hollow cylinder (5), double-screw bolt (802) fixed mounting is in the front surface upside of base (1), and the front end of double-screw bolt (802) runs through first fixed plate (801), slider angle adjusting bolt (803) spiro union is on double-screw bolt (802), and the front surface laminating of slider angle adjusting bolt (803) is in the rear surface of first fixed plate (801).

4. The micro floating tool as set forth in claim 1, wherein: feedback power adjustment mechanism (9) include second fixed plate (901), feedback power adjusting bolt (902), feedback power spring (903) and dull and stereotyped (904), second fixed plate (901) fixed mounting is in the outer wall downside of hollow cylinder (5), and feedback power adjusting bolt (902) spiro union in the front surface of second fixed plate (901), feedback power spring (903) fixed mounting is in the front surface downside of base (1), and dull and stereotyped (904) fixed mounting is in the front end of feedback power spring (903), the rear end laminating of feedback power adjusting bolt (902) is in the front surface of dull and stereotyped (904).

5. The micro floating tool as set forth in claim 1, wherein: a conical bearing (13) is arranged between the floating block (4) and the central shaft (3), and a gland (14) is fixedly mounted on the outer side wall of the floating block (4).

6. The micro floating tool as set forth in claim 2, wherein: the miniature floating cutter further comprises a cylindrical block (16) and a screw (18), a threaded hole (17) is formed in the rear end of the cylindrical rod of the roller (7), the screw (18) penetrates through the cylindrical block (16) and then is in threaded connection with the threaded hole (17), the front surface of the cylindrical block (16) is attached to the inner ring of the single-row radial bearing (6), and an end cover (15) is fixedly mounted at the upper end of the hollow cylinder (5).

7. The micro floating tool as set forth in claim 2, wherein: the number of the single-row radial bearings (6) is four, and the four single-row radial bearings (6) are distributed on the outer wall of the cylindrical rod of the roller (7) in parallel.