CN219747976U - Major diameter magnetic force compass device - Google Patents

Major diameter magnetic force compass device Download PDF

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Publication number
CN219747976U
CN219747976U CN202321355499.9U CN202321355499U CN219747976U CN 219747976 U CN219747976 U CN 219747976U CN 202321355499 U CN202321355499 U CN 202321355499U CN 219747976 U CN219747976 U CN 219747976U
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China
Prior art keywords
bearing
rotating shaft
graduated scale
magnet
compass device
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CN202321355499.9U
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Chinese (zh)
Inventor
贺家忠
刘永根
温策
周娟
郭金海
王成平
王玲玲
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Jinneng Holding Coal Group Co Ltd
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Jinneng Holding Coal Group Co Ltd
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Priority to CN202321355499.9U priority Critical patent/CN219747976U/en
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Abstract

The utility model relates to the technical field of machining and discloses a large-diameter magnetic compass device, wherein a magnet is embedded and installed at the bottom of a fixed seat, a bearing is embedded at the inner upper part of the fixed seat, a penetrating rotating shaft is installed in the bearing, the upper part of the rotating shaft extends out of the fixed seat and is provided with a horizontal graduated scale through a fastening bolt, a drawing needle is sleeved at the free end of the graduated scale, and the drawing needle horizontally slides on the graduated scale and is positioned and fastened through a locking piece. The device not only fundamentally solves the requirement of processing large-diameter parts, but also ensures the processing precision by matching the drawing needle with the magnetic base, and improves the project which originally needs to be completed by cooperation of multiple persons into the project which can be completed by operation of only one person, thereby saving time and labor.

Description

Major diameter magnetic force compass device
Technical Field
The utility model relates to the technical field of machining, in particular to the technical field of machining large-diameter circles and circular arc pieces on a steel plate, and specifically relates to a large-diameter magnetic drawing gauge device.
Background
In the process of manufacturing machined parts, a large-diameter steel plate is required to be cut by workers in a machining workshop during blanking, a blanking track is required to be drawn on the steel plate in advance, namely, a circle or an arc line is required to be drawn on the steel plate, the diameter of the circle which can be drawn by a common drawing gauge device is small, the machining requirement of the large-diameter steel plate cannot be met, if the large-diameter drawing gauge device with equal proportion is machined, the operation is difficult, the conventional large-diameter steel plate drawing gauge is completed by a method of locating points by a steel tape, one person is required to fix one end of the center of the steel tape, the other person rotates the steel tape, the arc drawing and machining are completed, one person cannot complete the work, two persons are required to cooperate at most, the working efficiency is greatly reduced, the machining precision cannot meet the requirement, the work time and labor are wasted, and the work requirement cannot be met.
Disclosure of Invention
The utility model provides a large-diameter magnetic compass device, which aims to solve the problems that when a circle or an arc is drawn on a large-diameter steel plate at present, a common compass device cannot meet the diameter requirement, the conventional drawing device cannot meet the requirement of single person for quick operation, the work efficiency is influenced by cooperation of multiple persons, and meanwhile, the precision cannot meet the processing requirement, so that a plurality of inconveniences are brought.
The utility model is realized by adopting the following technical scheme:
a magnet is embedded in the bottom of a fixed seat, a bearing is embedded in the upper portion of the fixed seat, a penetrating rotating shaft is arranged in the bearing, the upper portion of the rotating shaft extends out of the fixed seat and is provided with a horizontal graduated scale through a fastening bolt, a drawing needle is sleeved at the free end of the graduated scale, and the drawing needle horizontally slides on the graduated scale and is positioned and fastened through a locking piece.
When the large-diameter magnetic compass device is implemented, the fixing seat is of a hollow structure penetrating up and down, the magnet is embedded and installed at the bottom of the fixing seat, the nylon sealing cover matched with the fixing seat is arranged at the lower part of the magnet, the magnet is fixed by the nylon sealing cover, meanwhile, magnetic iron is prevented from attracting metal fragments, scratches on a steel plate caused by the metal fragments during installation and removal of the fixing seat are avoided, the product quality is influenced, meanwhile, the device is convenient to clean, the nylon sealing cover is a thin cover assembled on the fixing seat, and the fixing seat can be stably fixed on the steel plate by the magnet through the nylon sealing cover;
a distance sleeve is arranged in the fixed seat and clamped between the bearing and the magnet, so that the bearing and the magnet are separated, and the magnet is prevented from affecting the rotation of the bearing; a concave for accommodating the rotating shaft is arranged at the top of the distance sleeve, a magnet mounting part is arranged at the bottom of the distance sleeve, and the magnet mounting part is inserted in the center of the magnet;
the bearing is embedded in the upper part of the inside of the fixed seat, a penetrating rotating shaft is arranged in the bearing, the rotating shaft is in interference fit with an inner ring of the bearing, the rotating connection between the rotating shaft and the fixed seat is realized through the bearing, a shaft shoulder of the rotating shaft is clamped outside the upper part of the bearing, the rotating shaft is in a ladder shape, the bearing is clamped at the waist part of the rotating shaft, the part of the bottom of the rotating shaft extending out of the bearing is provided with external threads, the rotating shaft is assembled in the bearing through the nut matched with the external threads, a flat pad is arranged between the nut and the bearing, and the rotating shaft is fixedly arranged between the inner ring of the bearing and an opening at the top of the fixed seat through the nut;
the fixing base is stretched out on pivot upper portion and installs horizontal scale through fastening bolt, the pivot upper portion level is opened there is the through-hole the same with scale cross sectional shape, the through-hole top surface is opened there is the screw hole, fastening bolt passes through screw hole location fastening scale, the range of scale is 2 meters, the free pot head of scale is equipped with the drawing needle, the drawing needle horizontal slip is fixed a position fastening on the scale and through the retaining member, the retaining member is fastening bolt, drawing needle upper portion level is opened there is the through-hole the same with scale cross sectional shape, the through-hole top surface is opened there is the screw hole, fastening bolt passes through screw hole location fastening scale.
During installation, the bearing is placed from the lower end of the fixed seat, the bearing is propped against the top of the fixed seat, the rotating shaft is sleeved into the bearing inner ring from the opening of the upper end of the fixed seat, the shaft shoulder of the rotating shaft is clamped at the edge of the bearing, the flat pad is sleeved at the lower part of the rotating shaft penetrating through the bearing, the nut is used for installation and fixation, then the distance sleeve is placed from the lower end of the fixed seat, the magnet is installed at the bottom of the fixed seat at the lower part of the distance sleeve, the nylon sealing cover is finally installed, the graduated scale is sleeved into the through hole at the upper end of the rotating shaft, the fastening bolt is screwed and fixed, and the drawing needle is installed on the graduated scale in the same way.
When the zero setting device is used, the fixing seat is adsorbed on the circle center of the steel plate to be processed, the fastening bolt for fixing the rotating shaft is unscrewed, the position of the graduated scale in the through hole on the rotating shaft is adjusted, and the graduated scale is fixed on the 0 score line to finish zero setting; according to the radius of the circle or the arc to be processed, the fastening bolt for fixing the drawing needle is unscrewed, the position of the drawing needle on the graduated scale is adjusted, the distance between the axis of the rotating shaft and the needle point of the drawing needle is the radius of the circle or the arc to be processed, the length adjustment is completed, the fastening bolt for fixing the drawing needle is screwed, the graduated scale is rotated, and the circle drawing operation is completed.
Compared with the prior art, the utility model has the following beneficial effects: according to the large-diameter magnetic compass device provided by the utility model, the circle center position is fixed through the magnetic base, the radius is determined through the graduated scale, the required circle or arc is drawn through the drawing needle, the requirement of processing large-diameter parts is fundamentally met, the processing precision is ensured through the matching of the drawing needle and the magnetic base, the project which can be finished through cooperation of multiple people originally is improved into the project which can be finished through operation of only one person, and the large-diameter magnetic compass device is time-saving and labor-saving. The maximum range of the device can reach 2 meters, and the device can be suitable for most large-diameter circles or circular arcs, thereby fundamentally solving the processing and manufacturing requirements and providing the available value for the processing work of underground workshops. The device can be applied to other fields, is flexible to replace, meets the requirement of large-diameter circle drawing work, has the advantages of simple structure, low manufacturing cost, easy operation and easily available materials, and is suitable for popularization.
Drawings
Fig. 1 shows a schematic overall structure of the present utility model.
Fig. 2 shows a partial cross-sectional view of the present utility model.
Fig. 3 shows a schematic structural view of a rotating shaft in the present utility model.
In the figure: the device comprises a 1-fixing seat, a 2-magnet, a 3-distance sleeve, a 301-magnet mounting part, a 4-bearing, a 5-rotating shaft, a 6-nut, a 7-flat pad, an 8-fastening bolt, a 9-graduated scale, a 10-drawing needle, an 11-threaded hole, a 12-through hole and a 13-nylon sealing cover.
Description of the embodiments
Specific embodiments of the present utility model will be described below with reference to the accompanying drawings.
A large-diameter magnetic compass device is shown in figures 1-3: the fixing seat 1 is of a hollow structure penetrating up and down, the magnet 2 is embedded and installed at the bottom of the fixing seat 1, in the embodiment, the magnet 2 is an annular magnet, the nylon sealing cover 13 matched with the fixing seat 1 is arranged at the lower part of the magnet 2, the magnet 2 is fixed by the nylon sealing cover 13, meanwhile, metal fragments are prevented from being magnetically attracted, the bottom opening of the inner cavity of the fixing seat 1 is sealed, when the fixing seat 1 is installed and removed, scratches on a steel plate caused by the metal fragments are avoided, the quality of a product is influenced, meanwhile, the cleaning of the device is facilitated, the nylon sealing cover 13 is a thin cover glued on the fixing seat 1, and the magnet 2 can be stably fixed on the steel plate through the nylon sealing cover 13;
a distance sleeve 3 is arranged in the fixed seat 1, the distance sleeve 3 is clamped between the bearing 4 and the magnet 2, and the bearing is separated from the magnet, so that the magnet 2 is prevented from influencing the rotation of the bearing 4; the top of the distance sleeve 3 is provided with a recess for accommodating the rotating shaft 5, the bottom of the distance sleeve 3 is provided with a magnet mounting part 301, and the magnet mounting part 301 is inserted in the center of the magnet 2;
the bearing 4 is embedded in the upper part of the inside of the fixed seat 1, the through rotating shaft 5 is arranged in the bearing 4, the rotating shaft 5 is in interference fit with the inner ring of the bearing 4, the rotating connection between the rotating shaft 5 and the fixed seat 1 is realized through the bearing 4, the shaft shoulder of the rotating shaft 5 is clamped on the outer side of the upper part of the bearing 4, the rotating shaft 5 is in a three-stage ladder shape, the bearing 4 is clamped on the waist part of the rotating shaft 5, the part of the bottom of the rotating shaft 5 extending out of the bearing is provided with external threads, the rotating shaft 5 is assembled in the bearing 4 through the nut 6 matched with the external threads, the flat pad 7 is arranged between the nut 6 and the bearing 4, and the rotating shaft 5 is fixedly arranged between the inner ring of the bearing 4 and the top opening of the fixed seat 1 through the nut 6;
the fixing base 1 is stretched out on pivot 5 upper portion and installs horizontally graduated scale 9 through fastening bolt 8, graduated scale 9 adopts the metal material in order to guarantee its hardness, the through-hole 12 the same with graduated scale 9 cross sectional shape is opened to pivot 5 upper portion level, threaded hole 11 has been opened to the through-hole 12 top surface, fastening bolt 8 passes through threaded hole 11 location fastening graduated scale 9, the range of graduated scale 9 is 2 meters, the free end cover of graduated scale 9 is equipped with drawing needle 10, drawing needle 10 horizontal slip on graduated scale 9 and through retaining member location fastening, the retaining member is fastening bolt 8, drawing needle 10 upper portion level is opened has the through-hole 12 the same with graduated scale 9 cross sectional shape, threaded hole 11 has been opened to the through-hole 12 top surface, fastening bolt 8 passes through threaded hole 11 location fastening graduated scale 9.
During installation, the bearing 4 is placed from the lower end of the fixed seat 1, the bearing 4 is propped against the top of the fixed seat 1, then the rotating shaft 5 is sleeved into the inner ring of the bearing 4 from the opening at the upper end of the fixed seat 1, the shaft shoulder of the rotating shaft 5 is clamped at the edge of the bearing 4, the flat pad 7 is sleeved at the lower part of the rotating shaft 5 penetrating through the bearing 4, the nut 6 is used for installation and fixation, then the distance sleeve 3 is installed from the lower end of the fixed seat 1, the magnet 2 is installed at the bottom of the fixed seat 1 at the lower part of the distance sleeve 3, the nylon sealing cover 13 is finally installed, the graduated scale 9 is sleeved into the through hole 12 at the upper end of the rotating shaft, the fastening bolt 8 is screwed for fixation, and the drawing needle 10 is installed on the graduated scale 9 in the same way.
When the zero setting device is used, the fixed seat 1 is adsorbed on the circle center of a steel plate to be processed, the fastening bolt 8 for fixing the rotating shaft 5 is unscrewed, the position of the graduated scale 9 in the through hole 12 on the rotating shaft 5 is adjusted, and the graduated scale 9 is fixed on a 0-shaped line to finish zero setting; according to the radius of the circle or the arc to be processed, the fastening bolt 8 for fixing the drawing needle 10 is unscrewed, the position of the drawing needle 10 on the graduated scale 9 is adjusted, the distance between the axis of the rotating shaft 5 and the needle point of the drawing needle 10 is the radius of the circle or the arc to be processed, the length adjustment is completed, the fastening bolt 8 for fixing the drawing needle 10 is screwed, the graduated scale 9 is rotated, and the circle drawing operation is completed.
The scope of the present utility model is not limited to the above embodiments, and various modifications and alterations of the present utility model will become apparent to those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the present utility model are intended to be included in the scope of the present utility model.

Claims (9)

1. The utility model provides a major diameter magnetic force compass device, includes fixing base (1), its characterized in that: magnet (2) are installed in embedding of fixing base (1) bottom, upper portion has inlayed bearing (4) in fixing base (1), install pivot (5) that run through in bearing (4), fixing base (1) are stretched out on pivot (5) upper portion and install horizontally scale (9) through fastening bolt (8), free end cover of scale (9) is equipped with drawing needle (10), drawing needle (10) horizontal slip and pass through retaining member location fastening on scale (9).
2. A large diameter magnetic compass device as claimed in claim 1, wherein: the part, extending out of the bearing, of the bottom of the rotating shaft (5) is provided with external threads, and the rotating shaft (5) is assembled in the bearing (4) through the nut (6) matched with the external threads.
3. A large diameter magnetic compass device as claimed in claim 2, wherein: a flat pad (7) is arranged between the nut (6) and the bearing (4).
4. A large diameter magnetic compass device as claimed in claim 1, wherein: the rotating shaft (5) is in interference fit with the inner ring of the bearing (4), and the shaft shoulder of the rotating shaft (5) is clamped at the outer side of the upper part of the bearing (4).
5. A large diameter magnetic compass device as claimed in claim 1, wherein: a distance sleeve (3) is arranged in the fixed seat (1), and the distance sleeve (3) is clamped between the bearing (4) and the magnet (2); the top of the distance sleeve (3) is provided with a recess for accommodating the rotating shaft (5), the bottom of the distance sleeve (3) is provided with a magnet mounting part (301), and the magnet mounting part (301) is inserted in the center of the magnet (2).
6. A large diameter magnetic compass device as claimed in claim 1, wherein: the lower part of the magnet (2) is provided with a nylon sealing cover (13) matched with the fixed seat (1), and the nylon sealing cover (13) is a thin cover assembled on the fixed seat (1).
7. A large diameter magnetic compass device as claimed in claim 1, wherein: the upper part of the rotating shaft (5) is horizontally provided with a through hole (12) with the same cross section shape as the graduated scale (9), the top surface of the through hole (12) is provided with a threaded hole (11), and the fastening bolt (8) is used for positioning and fastening the graduated scale (9) through the threaded hole (11).
8. A large diameter magnetic compass device as claimed in claim 1, wherein: the locking piece is a fastening bolt (8), a through hole (12) with the same cross section shape as that of the graduated scale (9) is horizontally formed in the upper portion of the drawing needle (10), a threaded hole (11) is formed in the top surface of the through hole (12), and the fastening bolt (8) is used for positioning and fastening the graduated scale (9) through the threaded hole (11).
9. A large diameter magnetic compass device as claimed in claim 1, wherein: the measuring range of the graduated scale (9) is 2 meters.
CN202321355499.9U 2023-05-31 2023-05-31 Major diameter magnetic force compass device Active CN219747976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321355499.9U CN219747976U (en) 2023-05-31 2023-05-31 Major diameter magnetic force compass device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321355499.9U CN219747976U (en) 2023-05-31 2023-05-31 Major diameter magnetic force compass device

Publications (1)

Publication Number Publication Date
CN219747976U true CN219747976U (en) 2023-09-26

Family

ID=88090614

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321355499.9U Active CN219747976U (en) 2023-05-31 2023-05-31 Major diameter magnetic force compass device

Country Status (1)

Country Link
CN (1) CN219747976U (en)

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