Iron core silicon steel sheet beveling mechanism

Abstract

The utility model belongs to the technical field of transformer manufacturing, and particularly relates to an iron core silicon steel sheet beveling mechanism which comprises a working table, a sliding table arranged on the working table, an upper cutter and a lower cutter, the lower cutter is installed on the sliding table through an installation assembly, the upper cutter is installed on the working table through a lifting table, and the installation assembly comprises an installation block and an installation bolt. The lower cutter is connected with one end of the mounting block and located in a cutting groove in the sliding table, a mounting groove matched with the mounting block is formed in the sliding table, the mounting block is located in the mounting groove and fixedly connected with the sliding table through a mounting bolt, the other end of the mounting block is hinged to the sliding table, and the upper end of the mounting block is flush with the upper end of the sliding table. According to the mechanism, the operation space of the lower cutter can be increased without dismounting a mounting part of the upper cutter or moving the sliding table out of the workbench, the structure is simple, operation is convenient and fast, and maintenance and replacement of the lower cutter are easy to achieve.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer manufacturing, and particularly relates to an iron core silicon steel sheet beveling mechanism. Background Art

[0002] The transformer core is composed of multiple silicon steel sheets. During the production process, the silicon steel coils need to be unrolled and cut to form trapezoidal silicon steel sheets to facilitate subsequent assembly and splicing to form cores of different shapes. Since the silicon steel sheets are trapezoidal, the cutting knife group needs to be tilted. The silicon steel sheet cutting knife group generally includes an upper cutter located above the working surface of the slide and a lower cutter located below. The blades of the upper cutter and the lower cutter are arranged relative to each other. When in use, the lower cutter is fixed, and the upper cutter is driven vertically downward by a driving mechanism and clamps the silicon steel sheet together with the lower cutter for cutting. The lower cutter is usually set in a cutting groove on the slide and is fixed to the slide by horizontal bolts. The space of the cutting groove is small and the upper cutter is set above it. When the lower cutter is damaged, it is necessary to remove the mounting parts of the upper cutter or move the slide out of the workbench. It is difficult to replace and repair the lower cutter in situ, or the width of the cutting groove can be increased. However, if the width of the cutting groove is too large, it will easily cause the silicon steel sheet to sag. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an iron core silicon steel sheet bevel cutting mechanism, which can increase the operating space of the lower cutter without removing the mounting components of the upper cutter or moving the slide out of the workbench. It has a simple structure, is easy to operate, and is easy to repair and replace the lower cutter.

[0004] The specific technical solution adopted in this utility model is:

[0005] A beveling mechanism for iron core silicon steel sheets comprises a workbench, a slide arranged on the workbench, an upper cutter and a lower cutter, wherein the lower cutter is mounted on the slide with the aid of a mounting assembly, and the upper cutter is mounted on the workbench with the aid of a lifting platform, the mounting assembly comprises a mounting block and a mounting bolt, the lower cutter is connected to one end of the mounting block and is located in a cutting groove on the slide, a mounting groove matching the mounting block is provided on the slide, the mounting block is located in the mounting groove and is fixedly connected to the slide with the aid of a mounting bolt, the other end of the mounting block is hinged to the slide, and the upper end of the mounting block is arranged flush with the upper end of the slide.

[0006] The widths of the slide and the lifting platform are both wider than the width of the silicon steel sheet. The lifting platform is provided with positioning pins on both sides of the silicon steel sheet, and the slide is provided with positioning holes matching the positioning pins.

[0007] The lower end of the positioning pin is a hemispherical structure.

[0008] The workbench is provided with a gantry with an upward opening and columns connected to the two sides of the gantry by means of guide rails arranged in the vertical direction. The upper end of the gantry is located above the workbench and is fixedly connected to the lifting platform, and the lower end is located below the workbench and is connected to the workbench by means of a telescopic cylinder. The workbench is provided with a lifting through hole matching the gantry.

[0009] The lifting platform is provided with a pressure block located on the rear side of the upper cutter and matched with the silicon steel sheet. The upper end of the pressure block is provided with a connecting rod and a buffer spring sleeved on the connecting rod. The lifting platform is provided with a mounting hole matching the connecting rod. The upper end of the connecting rod is provided with a limit block located above the mounting block.

[0010] The beneficial effects of the utility model are:

[0011] The utility model adopts a technical solution in which the lower cutter is mounted on the slide with the aid of a mounting block, and the mounting block is hinged to the slide. When the lower cutter needs to be repaired or replaced, the mounting bolts fixing the mounting block and the slide are loosened, and the mounting block rotates along its hinge axis, so that the lower cutter is rotated out of the cutting groove on the slide. There is no need to operate the lower cutter in the cutting groove, and the operating space for the lower cutter is large, which is convenient for repair and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 for Figure 2 AA sectional view;

[0015] Figure 4 This is a schematic diagram of the assembly of the lower cutter, mounting block and slide;

[0016] Figure 5 for Figure 4 BB cross-sectional view;

[0017] Figure 6 for Figure 4 Schematic diagram of the status when replacing the lower cutter;

[0018] In the attached drawings, 1. workbench, 2. slide, 3. upper cutter, 4. lower cutter, 5. lifting platform, 6. mounting block, 7. mounting bolt, 8. cutting groove, 9. positioning pin, 10. positioning hole, 11. gantry, 12. guide rail, 13. column, 14. telescopic cylinder, 15. lifting hole, 16. pressure block, 17. connecting rod, 18. buffer spring, 19. mounting hole, 20. limit block. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] Specific implementation examples Figure 1-6 As shown, a beveling mechanism for iron core silicon steel sheets includes a workbench 1, a slide 2 arranged on the workbench 1, an upper cutter 3 and a lower cutter 4. The lower cutter 4 is installed on the slide 2 with the help of a mounting assembly, and the upper cutter 3 is installed on the workbench 1 with the help of a lifting platform 5. The mounting assembly includes a mounting block 6 and a mounting bolt 7. The lower cutter 4 is connected to one end of the mounting block 6 and is located in a cutting groove 8 on the slide 2. A mounting groove matching the mounting block 6 is provided on the slide 2. The mounting block 6 is located in the mounting groove and is fixedly connected to the slide 2 with the help of the mounting bolt 7. The other end of the mounting block 6 is hinged to the slide 2, and the upper end of the mounting block 6 is arranged flush with the upper end of the slide 2. During operation, the mounting block 6 is fixedly connected to the slide 2 by the mounting bolts 7. The silicon steel sheet is transported on the slide 2 and cut by the upper cutter 3 and the lower cutter 4. When the lower cutter 4 needs to be repaired or replaced, the mounting bolts 7 are loosened, and the mounting block 6 rotates along its hinge axis, allowing the lower cutter 4 to be rotated out of the slot 8 on the slide 2. There is no need to operate the lower cutter 4 in the slot 8, which provides ample operating space for the lower cutter 4 and facilitates repair and replacement. At the same time, the width of the slot 8 can be controlled to prevent the slot 8 from being too wide and causing local collapse of the silicon steel sheet.

[0021] Furthermore, the width of the slide 2 and the lifting platform 5 are both wider than the width of the silicon steel sheet. The lifting platform 5 is provided with positioning pins 9 on both sides of the silicon steel sheet, and the slide 2 is provided with positioning holes 10 matching the positioning pins 9. The lower end of the positioning pin 9 is lower than the cutting edge of the upper cutter 3. When the lifting platform 5 drives the upper cutter 3 and the positioning pin 9 to descend, the positioning pin 9 first contacts the side of the silicon steel sheet to align the silicon steel sheet, ensure the accuracy of the cutting position of the silicon steel sheet, and improve the quality of the silicon steel sheet product. The positioning pin 9 is inserted into the positioning hole 10 to avoid interference with the slide 2; then the upper cutter 3 and the lower cutter 4 cooperate to cut the aligned silicon steel sheet.

[0022] Furthermore, the lower end of the positioning pin 9 is a hemispherical structure. When the positioning pin 9 descends and contacts the silicon steel sheet, the silicon steel sheet is gradually straightened by means of the contact between the lower end of the hemispherical structure and the side of the silicon steel sheet, thereby preventing the silicon steel sheet to be cut from being skewed and causing deviations in the cutting position and angle, thereby improving product quality.

[0023] Furthermore, the workbench 1 is provided with a gantry 11 with an upward opening and columns 13 which are connected to both sides of the gantry 11 with the help of guide rails 12 arranged in the vertical direction. The upper end of the gantry 11 is located above the workbench 1 and is fixedly connected to the lifting platform 5, and the lower end is located below the workbench 1 and is connected to the workbench 1 with the help of a telescopic cylinder 14. The workbench 1 is provided with a lifting through hole 15 matching the gantry 11. The gantry 11 is located between the two columns 13 and is connected to the columns 13 with the help of the guide rails 12. The telescopic cylinder 14 is used to drive the gantry 11 to rise and fall, so that the lifting platform 5 drives the upper cutter 3 to rise and fall, thereby realizing cutting of the silicon steel sheet. During the lifting process, the telescopic cylinder 14 does not directly act on the upper cutter 3. Due to the high structural strength of the gantry 11, the external force caused by the movement of the silicon steel sheet can be resisted during the up and down movement, thereby improving the overall stability and ensuring the cutting accuracy.

[0024] Furthermore, the lifting platform 5 is provided with a pressure block 16 located at the rear side of the upper cutter 3 and matched with the silicon steel sheet, and the upper end of the pressure block 16 is provided with a connecting rod 17 and a buffer spring 18 sleeved on the connecting rod 17. The lifting platform 5 is provided with a mounting hole 19 matched with the connecting rod 17, and the upper end of the connecting rod 17 is provided with a limit block 20 located above the mounting block 6. When the lifting platform 5 is lowered with the gantry 11, the pressure block 16 comes into contact with the silicon steel sheet, and as the lifting platform 5 continues to descend, the buffer spring 18 is compressed, and the pressure The pressure of the block 16 on the silicon steel sheet gradually increases, and the silicon steel sheet delivered from the silicon steel coil is pressed flatly on the slide 2 in a flexible pressing manner, and then the upper cutter 3 cuts into the silicon steel sheet to cut it. The pressure of the pressing block 16 on the silicon steel sheet can improve the flatness of the silicon steel sheet on the slide 2, and prevent the silicon steel sheet from bending and affecting the quality of the finished product; at the same time, in the process of the silicon steel sheet being cut, it can effectively prevent the silicon steel sheet to be cut at the rear from bouncing and deforming, thereby ensuring the accuracy and flatness of the cutting position of the next silicon steel sheet finished product.

Claims

1. A core silicon steel sheet beveling mechanism, comprising a workbench (1), a slide (2) arranged on the workbench (1), an upper cutter (3) and a lower cutter (4), wherein the lower cutter (4) is mounted on the slide (2) by means of a mounting assembly, and the upper cutter (3) is mounted on the workbench (1) by means of a lifting platform (5), characterized in that: The mounting assembly includes a mounting block (6) and a mounting bolt (7); the lower cutter (4) is connected to one end of the mounting block (6) and is located in a cutting groove (8) on the slide (2); a mounting groove matching the mounting block (6) is provided on the slide (2); the mounting block (6) is located in the mounting groove and is fixedly connected to the slide (2) by means of the mounting bolt (7); the other end of the mounting block (6) is hinged to the slide (2); and the upper end of the mounting block (6) is flush with the upper end of the slide (2).

2. The iron core silicon steel sheet beveling mechanism according to claim 1, characterized in that: The widths of the slide (2) and the lifting platform (5) are both wider than the width of the silicon steel sheet. The lifting platform (5) is provided with positioning pins (9) located on both sides of the silicon steel sheet, and the slide (2) is provided with positioning holes (10) matching the positioning pins (9).

3. The iron core silicon steel sheet beveling mechanism according to claim 2, characterized in that: The lower end of the positioning pin (9) is a hemispherical structure.

4. The iron core silicon steel sheet beveling mechanism according to claim 1, characterized in that: The workbench (1) is provided with a gantry (11) with an upward opening and columns (13) connected to both sides of the gantry (11) by means of guide rails (12) arranged in a vertical direction. The upper end of the gantry (11) is located above the workbench (1) and is fixedly connected to the lifting platform (5), and the lower end is located below the workbench (1) and is connected to the workbench (1) by means of a telescopic cylinder (14). The workbench (1) is provided with a lifting through hole (15) matched with the gantry (11).

5. The iron core silicon steel sheet beveling mechanism according to claim 1, characterized in that: The lifting platform (5) is provided with a pressure block (16) located at the rear side of the upper cutter (3) and matched with the silicon steel sheet, the upper end of the pressure block (16) is provided with a connecting rod (17) and a buffer spring (18) sleeved on the connecting rod (17), the lifting platform (5) is provided with a mounting hole (19) matched with the connecting rod (17), and the upper end of the connecting rod (17) is provided with a limit block (20) located above the mounting block (6).

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