CN213946056U

CN213946056U - Differential grinding machine

Info

Publication number: CN213946056U
Application number: CN202023275692.0U
Authority: CN
Inventors: 杨明静
Original assignee: Yayuan Technology Yichang Electronic Technology Co ltd
Current assignee: Yayuan Technology Yichang Electronic Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-13
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a differential grinding machine, which comprises a supporting structure, a fixed plate and an adjusting plate which are horizontally arranged, grinding columns, a driving device for driving the grinding columns to rotate and a lifting mechanism for realizing the lifting of the adjusting plate; the fixed plate is fixedly connected with the supporting structure; the grinding column vertically penetrates through the adjusting plate and is clamped on a chuck which is rotatably connected with the fixing plate; the adjusting plate is positioned above the fixing plate, and the length of the grinding column extending out of the adjusting plate is adjusted under the action of the lifting mechanism fixed on the supporting structure. The grinding distance of the central column can be conveniently controlled by the length of the grinding column extending out of the adjusting plate, so that the size of a magnetic circuit gap is controlled, and compared with manual grinding, the grinding device obviously improves the machining precision and the machining efficiency.

Description

Differential grinding machine

Technical Field

The utility model relates to a transformer production field, concretely relates to make magnetic core form disconnected poor machine of grinding in clearance.

Background

Magnetic materials can generate eddy current loss in the process of alternating magnetization, in order to reduce the eddy current loss of a transformer, a magnetic circuit gap, namely 'gap', is usually arranged on a ferrite magnetic core, the magnetic core is divided into two halves, a central column of one half of the magnetic core is ground to a certain thickness, and a gap is formed between the central columns when the two halves of the magnetic core are buckled with a coil. Common magnetic cores include EE type, EP type, ER type, etc., especially half of the magnetic core as shown in fig. 1, the quantitative removal of the central column should ensure that the surrounding parts cannot be damaged, because the magnetic core is very small, the whole length is only about one centimeter, and the size of the central column is smaller, the mechanical removal is difficult to operate, and usually only manual removal can be adopted. However, the manual operation is difficult to grasp the amount and accuracy of the grinding.

SUMMERY OF THE UTILITY MODEL

To the little problem that is difficult to mechanical grinding in order to form the magnetic circuit clearance but the precision is hardly guaranteed to manual operation of ferrite core size, the utility model provides a disconnected poor machine of grinding that is used for polishing magnetic core manufacturing magnetic circuit clearance specially.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a differential grinding machine comprises a supporting structure, a fixing plate and an adjusting plate which are horizontally arranged, a grinding column, a chuck, a driving device for driving the chuck to rotate and a lifting mechanism for realizing lifting of the adjusting plate; the fixing plate is fixedly connected with the supporting structure; the grinding column vertically penetrates through the adjusting plate and is clamped on a chuck rotationally connected with the fixing plate; the adjusting plate is positioned above the fixing plate, and the length of the grinding column extending out of the adjusting plate is adjusted under the action of the lifting mechanism fixed on the supporting structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

the grinding distance of the central column can be conveniently controlled by the length of the grinding column extending out of the adjusting plate, so that the size of a magnetic circuit gap is controlled, and compared with manual grinding, the grinding device obviously improves the machining precision and the machining efficiency.

Drawings

Fig. 1 shows one of the magnetic cores to which the present invention is applied.

Fig. 2 is a schematic structural view of a differential grinding machine according to an embodiment of the present invention.

In the above drawings: 1. a fixing plate; 2. an adjusting plate; 3. grinding the column; 4. a base plate; 5. a back plate; 6. a side plate; 7. a dovetail slide rail; 8. a rotating seat; 9. a knob; 10. a slide base; 11. a screw; 12. v 21274h and a limiting bulge; 13. and cooling the water spray head.

Detailed Description

As shown in fig. 2, the embodiment of the utility model discloses a differential grinding machine, which comprises a supporting structure, a horizontally arranged fixing plate 1 and an adjusting plate 2, a grinding column 3, a chuck, a driving device for driving the chuck to rotate, and a lifting mechanism for realizing the lifting of the adjusting plate 2; the fixing plate 1 is fixedly connected with the supporting structure; the grinding column 3 vertically penetrates through the adjusting plate 2 and is clamped on a chuck which is rotatably connected with the fixing plate 1; the adjusting plate 2 is positioned above the fixing plate 1, and the length of the grinding column 3 extending out of the adjusting plate 2 is adjusted under the action of a lifting mechanism fixed on the supporting structure.

Preferably, the supporting structure comprises a bottom plate 4, a back plate 5 and a side plate 6 which are vertically fixed on the bottom plate 4 and form a rectangular parallelepiped, and the fixing plate 1 is fixedly connected with the back plate 5 and the side plate 6. The supporting structure has simple structure and convenient processing and assembly, and the used materials and the common processing and fixing methods are all used.

Preferably, the lifting mechanism comprises a slide rail fixed on the back plate 5, a rotating seat 8 fixed at the top end of the slide rail, a knob 9 rotatably connected with the rotating seat 8, a screw rod 11 fixedly connected with the knob 9, and a slide seat 10 in sliding connection with the slide rail and in threaded connection with the screw rod 11; the adjusting plate 2 is fixed on the sliding base 10. The screw 11 is used for realizing the lifting of the adjusting plate 2, so that the observation distance is enlarged, the lifting distance of the observing adjusting plate 2 is changed into the rotation angle of the observation knob 9, and the adjustment precision is improved. The sliding rails define the running direction of the sliding base 10, so that the sliding base can be lifted and lowered more stably.

Preferably, the slide rail is a dovetail slide rail 7. Because the whole sliding seat 10 and the adjusting plate 2 are supported by the sliding rail and the screw rod 11, the dovetail type sliding rail 7 has better supporting performance and is not easy to damage, and the sliding seat 10 is also not easy to shake and overturn.

Preferably, the knob 9 and the rotating base 8 are respectively marked with scales and pointers.

Preferably, the adjusting plate 2 is fixed with a v-21274h-shaped limiting bulge 12 on the top surface, the v-21274h-shaped limiting bulge 12 surrounds the grinding column 3 and enables the grinding column 3 to only contact the central column of the magnetic core when the magnetic core is in the v-21274h-shaped limiting bulge 12.

Preferably, still include and grind the dust fall system, grind the dust fall system and include water storage tank, water pipe, and with water piping connection just to the cooling water shower nozzle 13 of grinding post 3.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A differential grinding machine is characterized in that: the grinding device comprises a supporting structure, a fixing plate and an adjusting plate which are horizontally arranged, a grinding column, a chuck, a driving device for driving the chuck to rotate and a lifting mechanism for realizing lifting of the adjusting plate; the fixing plate is fixedly connected with the supporting structure; the grinding column vertically penetrates through the adjusting plate and is clamped on a chuck rotationally connected with the fixing plate; the adjusting plate is positioned above the fixing plate, and the length of the grinding column extending out of the adjusting plate is adjusted under the action of the lifting mechanism fixed on the supporting structure.

2. A differential grinding machine as claimed in claim 1, characterized in that: the supporting structure comprises a bottom plate, a back plate and a side plate, wherein the back plate and the side plate are vertically fixed on the bottom plate and enclose a cuboid, and the fixing plate is fixedly connected with the back plate and the side plate.

3. A differential grinding machine as claimed in claim 2, characterized in that: the lifting mechanism comprises a sliding rail fixed on the back plate, a rotating seat fixed at the top end of the sliding rail, a knob rotationally connected with the rotating seat, a screw fixedly connected with the knob, and a sliding seat which is in sliding connection with the sliding rail and is in threaded connection with the screw; the adjusting plate is fixed on the sliding seat.

4. A differential grinding machine as claimed in claim 3, characterized in that: the slide rail is a dovetail slide rail.

5. A differential grinding machine as claimed in claim 3, characterized in that: the rotary knob and the rotary seat are respectively marked with scales and a pointer.

6. A differential grinding machine as claimed in claim 1, characterized in that: the top surface of the adjusting plate is fixed with a v-21274h-shaped limiting bulge, the v-21274h-shaped limiting bulge surrounds the grinding column and enables the grinding column to only contact the central column of the magnetic core when the magnetic core is in the v-21274h-shaped limiting bulge.

7. A differential grinding machine as claimed in claim 1, characterized in that: still including grinding the dust fall system, grind the dust fall system and include water storage tank, water pipe, and with water piping connection just to the cooling water shower nozzle of grinding the post.