Magnetic core positioning and guiding device of cylindrical grinding machine

Abstract

The utility model discloses a magnetic core positioning and guiding device of a cylindrical grinding machine, and relates to the technical field of magnetic core cylindrical grinding. Six square-tube-shaped moving blocks distributed circumferentially are installed on a fixed table, limiting rings are rotatably installed on the tops of three of the moving blocks, a sliding part is arranged between every two adjacent moving blocks, an adjusting part is arranged on one side of each of two clamping blocks, and a first hydraulic cylinder used for pushing one of the moving blocks is installed on the outer wall face of each clamping block. One of the moving blocks can be driven to move horizontally by driving the hydraulic cylinder I, so that the six moving blocks can be driven to gather towards the electric turntable, and the magnetic core placed among the three limiting rings can be limited and clamped from the outer side; and the circle center of the magnetic core and the circle center of the electric rotating disc can be always located on the same horizontal axis, the situation that the grinding and polishing thicknesses of all positions of the magnetic core are different due to deviation and deflection of the magnetic core is prevented, and the grinding quality of the magnetic core is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic core outer cylindrical grinding, in particular to a magnetic core positioning and guiding device for an outer cylindrical grinding machine. Background Art

[0002] The magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has the characteristics of low loss.

[0003] At present, in the processing of magnetic cores, in order to obtain better surface finish, the magnetic cores need to be ground externally. Traditional grinding uses two clamping plates fixed to the frame by bolts to clamp and fix the magnetic cores to be ground. However, it is difficult to make the magnetic core and the center of the clamping plate on the same axis by simply fixing with clamping plates, resulting in uneven polishing of the magnetic core surface and different polishing thickness of the external circle of the magnetic core. Moreover, when the magnetic core is polished by two external cylindrical grinding wheels, it is easy for the magnetic core to be skewed and deviated from the axis, which will cause the grinding quality to deteriorate.

[0004] For this purpose, a magnetic core positioning and guiding device for a cylindrical grinder is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and provide a magnetic core positioning and guiding device for a cylindrical grinder.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A magnetic core positioning and guiding device for an external cylindrical grinder comprises two clamping blocks, one side of each clamping block is installed with an electric turntable, the side wall surface of the clamping block is provided with an axis correction part, the axis correction part comprises a fixed platform welded to the side wall surface of the clamping block, six circumferentially distributed square tube-shaped moving blocks are installed on the fixed platform, three of the moving blocks are rotatably installed with limit rings on the top, a sliding part is provided between two adjacent moving blocks, an adjusting part is provided on one side of the two clamping blocks, and a hydraulic cylinder for pushing one of the moving blocks is installed on the outer wall surface of the clamping block.

[0008] Furthermore, the outer wall surface of the fixed platform is provided with six sliding grooves for movement of the movable block.

[0009] Furthermore, the sliding part includes a lower pressing plate and an upper pressing plate, the interior of the moving block is slidably connected with the corresponding lower pressing plate and upper pressing plate, the movable ends of the lower pressing plate and the upper pressing plate are fixedly installed with protrusions, and the protrusions are slidably connected to the fixed platform.

[0010] Furthermore, the adjusting part includes a cross column, the other end of each of the clamping blocks is welded with a cross column, the top of the cross column is rotatably connected to two connecting plates, a pushing block is installed at the end close to the four connecting plates, a mounting base is provided vertically below the pushing block, a moving groove for sliding the lower end of the pushing block is provided on the upper surface of the mounting base, a stabilizing part for maintaining the stability of the cross column during movement is provided on the upper surface of the mounting base, and a hydraulic cylinder 2 for pushing the pushing block to move horizontally is installed on the top of the mounting base.

[0011] Furthermore, the stable portion includes a balancing slider, two balancing sliders are installed at the bottom of each of the cross columns, and a sliding cavity for sliding of the balancing slider is opened on the upper surface of the mounting base.

[0012] Furthermore, the top of the balancing slider is connected to the bottom of the cross column by bolts.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model can drive one of the moving blocks to move horizontally by driving the hydraulic cylinder, thereby driving the six moving blocks to gather toward the electric turntable, which can not only play the effect of clamping the magnetic core placed between the three limiting rings from the outside, but also ensure that the center of the magnetic core is always on the same horizontal axis as the center of the electric turntable, thereby preventing the magnetic core from being offset and skewed, resulting in uneven thickness of polishing at different parts of the magnetic core, and effectively ensuring the quality of magnetic core grinding; the two clamping blocks can be driven to move closer to or away from each other by driving the adjustment part, so that the distance between the two clamping blocks can be adjusted to a suitable size for clamping the magnetic core, which is more convenient to disassemble and assemble than using bolts to fix the clamping blocks, and effectively enhances practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side perspective schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an enlarged schematic diagram of the structure of the axis correction part of the utility model;

[0017] Figure 3 This is an enlarged schematic diagram of the sliding structure of the utility model.

[0018] Figure 4 It is a front perspective schematic diagram of the overall structure of the utility model;

[0019] Figure numerals: 1. Mounting base; 2. Clamping block; 3. Horizontal column; 4. Electric turntable; 5. Axis correction part; 501. Fixed table; 502. Moving block; 503. Slide groove; 504. Limiting ring; 505. Hydraulic cylinder one; 506. Sliding part; 5061. Lower pressure plate; 5062. Upper pressure plate; 5063. Bump; 6. Connecting plate; 7. Stabilizing part; 701. Sliding cavity; 702. Balancing slider; 8. Hydraulic cylinder two; 9. Pushing block; 10. Moving groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4As shown, a magnetic core positioning and guiding device for an external cylindrical grinder comprises two clamping blocks 2, one side of each of the clamping blocks 2 is installed with an electric turntable 4, the side wall surface of the clamping block 2 is provided with an axis correction part 5 for correcting the axis where the center of the magnetic core is located so that the center of the electric turntable 4 is on the same axis, the axis correction part 5 comprises a fixed table 501 welded on the side wall surface of the clamping block 2, six circumferentially distributed square tubular moving blocks 502 are installed on the fixed table 501, wherein the tops of three moving blocks 502 are rotatably installed with limit rings 504, a sliding part 506 for changing the spacing between the two moving blocks 502 is provided between two adjacent moving blocks 502, one side of the two clamping blocks 2 is provided with an adjusting part for changing the spacing between the two clamping blocks 2, the outer wall surface of the clamping block 2 is provided with a hydraulic cylinder 505 for pushing one of the moving blocks 502, and the outer wall surface of the electric turntable 4 and the outer wall surface of the moving block 502 are on the same horizontal axis;

[0025] Specifically, by driving the hydraulic cylinder 505, one of the moving blocks 502 can be driven to move horizontally, thereby driving the six moving blocks 502 to gather toward the electric turntable 4, which can not only play the effect of clamping the magnetic core placed between the three limit rings 504 from the outside, but also ensure that the center of the magnetic core is always on the same horizontal axis as the center of the electric turntable 4, thereby preventing the magnetic core from being offset and skewed, resulting in different thicknesses of polishing at different parts of the magnetic core, and effectively ensuring the quality of the magnetic core grinding; by driving the adjustment part, the two clamping blocks 2 can be driven to move closer or farther from each other, so that the distance between the two clamping blocks 2 can be adjusted to a suitable size for clamping the magnetic core. Compared with using bolts to fix the clamping blocks 2, disassembly and assembly is more convenient, and practicality is effectively enhanced.

[0026] like Figure 2 As shown, the outer wall surface of the fixed platform 501 is provided with six slide grooves 503 for the moving block 502 to move;

[0027] Specifically, the slide groove 503 can effectively enhance the stability of the moving block 502 when moving on the fixed platform 501, and enhance the stability of the magnetic external limit of the limit ring 504.

[0028] like Figures 2 to 3 As shown, the sliding part 506 includes a lower pressing plate 5061 and an upper pressing plate 5062, and the interior of the moving block 502 is slidably connected with the lower pressing plate 5061 and the upper pressing plate 5062 corresponding to each other, and the movable ends of the lower pressing plate 5061 and the upper pressing plate 5062 are fixedly installed with a protrusion 5063, and the protrusion 5063 is slidably connected with the fixed platform 501;

[0029] Specifically, by setting the lower pressure plate 5061 and the upper pressure plate 5062, the two adjacent moving blocks 502 can slide and translate accordingly when they gather toward the electric turntable 4. When moving, the upper surface of the lower pressure plate 5061 is always in contact with the bottom surface of the upper pressure plate 5062, which not only enhances the closeness of the connection between the two moving blocks 502, but also improves the stability of the two adjacent moving blocks 502 when sliding.

[0030] like Figures 1 to 4 As shown, the adjustment part includes a cross column 3, and the other end of each clamping block 2 is welded with a cross column 3, and the top of the cross column 3 is rotatably connected to two connecting plates 6, and a push block 9 is installed at one end close to the four connecting plates 6. The connection between the connecting plate 6 and the push block 9 is rotatably connected through a bearing member, and a mounting base 1 is arranged vertically below the push block 9. The upper surface of the mounting base 1 is provided with a moving groove 10 for sliding the lower end of the push block 9, and the upper surface of the mounting base 1 is provided with a stabilizing part 7 for maintaining the stability of the cross column 3 when moving, and a hydraulic cylinder 8 for pushing the push block 9 to move horizontally is installed on the top of the mounting base 1;

[0031] Specifically, by driving the hydraulic cylinder 2 8, the push block 9 can be driven to move smoothly. Under the pulling action of the four connecting plates 6, the two cross columns 3 can be pulled closer to or away from each other, thereby driving the two clamping blocks 2 closer to or away from each other, so as to adjust the distance between the two clamping blocks 2 to a suitable distance for clamping the magnetic core. The structure is simple and can be operated without the need for professionals.

[0032] like Figure 1 As shown, the stable portion 7 includes a balancing slider 702, two balancing sliders 702 are installed at the bottom of each of the crossbars 3, and a sliding cavity 701 for sliding of the balancing slider 702 is opened on the upper surface of the mounting base 1;

[0033] In order to facilitate the disassembly and replacement of the balancing slider 702 when it is worn, the top of the balancing slider 702 is connected to the bottom of the cross column 3 by bolts;

[0034] Specifically, when the cross column 3 moves horizontally, the balancing slider 702 can move along the laying direction of the sliding cavity 701, which effectively enhances the stability of the movement of the cross column 3, and also enhances the stability of the installation position of the clamping block 2, ensuring the stability of the magnetic core during clamping and grinding.

[0035] In summary: by driving the hydraulic cylinder 505, one of the moving blocks 502 can be driven to move horizontally, thereby driving the six moving blocks 502 to gather toward the electric turntable 4, which can not only play the effect of clamping the magnetic core placed between the three limit rings 504 from the outside, but also ensure that the center of the magnetic core is always on the same horizontal axis as the center of the electric turntable 4, preventing the core from being offset and skewed, resulting in different thicknesses of polishing at different parts of the magnetic core, and effectively ensuring the quality of the core grinding; by driving the adjustment part, the two clamping blocks 2 can be driven to move closer or farther from each other, so that the distance between the two clamping blocks 2 can be adjusted to a suitable size for clamping the magnetic core, which is more convenient to disassemble and assemble than using bolts to fix the clamping blocks 2, and effectively enhances practicality.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A magnetic core positioning and guiding device for a cylindrical grinder, characterized in that: The invention comprises two clamping blocks (2), one side of each clamping block (2) is provided with an electric turntable (4), the side wall surface of the clamping block (2) is provided with an axis correction part (5), the axis correction part (5) comprises a fixed platform (501) welded to the side wall surface of the clamping block (2), six circumferentially distributed square tube-shaped moving blocks (502) are installed on the fixed platform (501), the tops of three moving blocks (502) are rotatably provided with limit rings (504), a sliding part (506) is provided between two adjacent moving blocks (502), one side of the two clamping blocks (2) is provided with an adjustment part, and the outer wall surface of the clamping block (2) is provided with a hydraulic cylinder (505) for pushing one of the moving blocks (502).

2. The magnetic core positioning and guiding device for a cylindrical grinder according to claim 1, characterized in that: The outer wall surface of the fixed platform (501) is provided with six sliding grooves (503) for the moving block (502) to move.

3. The magnetic core positioning and guiding device for a cylindrical grinder according to claim 1, characterized in that: The sliding part (506) comprises a lower pressing plate (5061) and an upper pressing plate (5062), the interior of the moving block (502) is slidably connected with the lower pressing plate (5061) and the upper pressing plate (5062) corresponding to each other, and the movable ends of the lower pressing plate (5061) and the upper pressing plate (5062) are fixedly mounted with a protrusion (5063), and the protrusion (5063) is slidably connected to the fixed platform (501).

4. The magnetic core positioning and guiding device for a cylindrical grinder according to claim 1, characterized in that: The adjustment part comprises a transverse column (3), the other end of each clamping block (2) is welded with a transverse column (3), the top of the transverse column (3) is rotatably connected with two connecting plates (6), a pushing block (9) is installed at the adjacent end of the four connecting plates (6), a mounting base (1) is arranged vertically below the pushing block (9), a moving groove (10) for sliding the lower end of the pushing block (9) is provided on the upper surface of the mounting base (1), a stabilizing part (7) for maintaining the stability of the transverse column (3) when moving is arranged on the upper surface of the mounting base (1), and a hydraulic cylinder (8) for pushing the pushing block (9) to move horizontally is installed on the top of the mounting base (1).

5. The magnetic core positioning and guiding device for a cylindrical grinder according to claim 4, characterized in that: The stable portion (7) comprises a balancing slider (702), two balancing sliders (702) are installed at the bottom of each of the crossbars (3), and a sliding cavity (701) for sliding the balancing sliders (702) is provided on the upper surface of the mounting base (1).

6. The magnetic core positioning and guiding device for a cylindrical grinder according to claim 5, characterized in that: The top of the balancing slider (702) is connected to the bottom of the crossbar (3) by bolts.

Images