Novel cutter

Abstract

The utility model discloses a novel cutter which comprises an installation disc, a through hole is formed in the center of the installation disc, and a set of cutter head clamping and fixing mechanism is installed on the installation disc. The tool bit clamping and fixing mechanism comprises a mounting groove formed in the mounting disc, a mounting seat fastened through a fastener is arranged at the mounting groove, a tool bit mounting groove is formed in the mounting seat, a cutting tool bit is mounted on the tool bit mounting groove, and a pressing block pressed on the cutting tool bit is fastened on the mounting seat through a fastener; a first inclined face is arranged on the side face of the installation base, a limiting clamping block is arranged at the side end of the installation base, a second inclined face matched with the first inclined face is arranged on the limiting clamping block, and the limiting clamping block is fastened to the installation disc through a fastener. The multi-cutting-head cutter is ingenious and reasonable in structural design, multiple cutting heads can be installed, so that the outer contour precision of a cut workpiece is higher, the surface smoothness is better, the higher cutting efficiency is achieved, and the multi-cutting-head cutter is worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to a cutting tool, in particular to a cutting tool for turning and milling equipment, and more particularly to a new type of tool. Background Art

[0002] The cutting tools on turning and milling equipment generally process the outer contour surface of the workpiece, so as to achieve precise outer contour size and precise outer contour surface finish; however, the cutting tools on existing turning and milling equipment are all single-chip heads, which cut the workpiece surface by approaching the outer contour of the workpiece. A defect of this single-chip head cutting tool is that the cutting amount is insufficient, resulting in low cutting accuracy, low outer contour finish, and low cutting efficiency. The reason is: when the workpiece is cut, the workpiece rotates at high speed and the cutting tool is continuously moved and fed, so the cutting tool cuts the workpiece surface in a spiral shape, and the surface accuracy and finish cannot reach the expected values. It is necessary to replace the cutting tool with a higher precision for secondary cutting and tertiary cutting to achieve the desired accuracy, which leads to low cutting efficiency and high processing cost.

[0003] Chinese utility model patent CN209681185U discloses a lathe cutting tool comprising a clamping portion, a cutting portion, and a cutter head. The tool also includes a support portion for supporting the cutting portion, the support portion being connected to the bottom of the cutting portion, which can be connected to the lathe carriage. This cutting tool utilizes a single cutting head, resulting in low cutting accuracy and efficiency, making it unsuitable for low-cost, large-scale deployment. Utility Model Content

[0004] The present invention aims to solve the shortcomings of the above-mentioned prior art and provide a new type of tool that can utilize multiple cutting heads to cut the outer contour of the workpiece, thereby achieving high chip quality, high precision, high smoothness and high cutting speed of the outer contour of the workpiece, meeting the needs of being able to achieve high chip quality, high precision, high smoothness and high cutting efficiency with a single tool.

[0005] The utility model adopts a technical solution to solve its technical problems: this new type of tool includes a mounting plate, a through hole is opened in the center of the mounting plate, and a group of cutter head clamping mechanisms evenly distributed along the center of the mounting plate are installed on the mounting plate; the cutter head clamping mechanism includes a mounting groove opened on the mounting plate, a mounting seat fastened by a fastener is provided at the mounting groove, a cutter head mounting groove is opened on the mounting seat, a cutting cutter head is fastened to the cutter head mounting groove by a fastener, and a pressure block pressed on the cutting cutter head is fastened to the mounting seat by the fastener; a first inclined surface is provided on the side of the mounting seat, a limit block is provided on the side end of the mounting seat, a second inclined surface cooperating with the first inclined surface is provided on the limit block, and the limit block is fastened to the mounting plate by the fastener. The function of the through hole here is to allow the workpiece to pass through the processing; the function of the tool head clamping mechanism here is to install the cutting tool head and lock it on the mounting plate; the function of the mounting groove and the mounting seat here is to serve as the installation basis for the cutting tool head, which is convenient for installing and replacing the cutting tool head; the function of the tool head mounting groove and the cutting tool head here is to be used for installing and fastening the cutting tool head; the function of the first inclined surface, the limit block and the second inclined surface here is to squeeze and press the mounting seat, so that the mounting seat is clamped in the mounting groove, and when the mounting seat is fastened by the fastener, the limit block can be used to further press the mounting seat laterally, so as to avoid the fastener loosening and causing the mounting seat to be slightly offset, and the cutting head installed on the mounting seat to move slightly, thereby affecting the cutting processing accuracy of the outer contour of the workpiece.

[0006] Further improvement is made, the bottom surface of the pressure block is provided with a notch, the mounting seat is provided with a socket, and a pin is fixed to the pressure block to cooperate with the socket. The function of the notch, the socket, and the pin is that when the pressure block is tightened by the fastener, the tightening pressure will deform the pressure block, causing the left bottom surface of the pressure block to elastically press against the top surface of the cutting head, thereby pressing the cutting head more tightly and preventing the cutting head from loosening.

[0007] Further improvement is made, the inner end surface of the cutting bit is a first bevel, and notches are provided at both ends of the inner end surface of the bit mounting groove. A second bevel is provided between the two notches to cooperate with the first bevel. The first bevel, notch, and second bevel are used to enable the cutting bit to be installed in the bit mounting groove quickly, efficiently, and precisely. The contact area between the first and second bevels on the cutting bit is small, making installation and positioning easy.

[0008] Further improvements include a radial clearance between the mounting slot and the mounting seat, a guide mounting hole formed in the mounting seat, a mounting hole connected to the side end of the mounting slot formed on the outer contour of the mounting plate, a pressing bevel formed on the mounting seat, a tightening bolt threadedly connected to the mounting hole, and an inclined circumferential surface formed on the tightening bolt that mates with the pressing bevel. The function of the clearance, mounting hole, pressing bevel, tightening bolt, and inclined circumferential surface is to adjust the position of each cutting head to enable cutting workpieces of different outer diameters. The accuracy of the tool alignment of each cutting head can be determined by measuring the distance between the cutting head tip and the outer end face of the mounting slot.

[0009] Further improvement, the mounting plate is provided with a set of countersunk holes evenly distributed along the center of the mounting plate. The function of the countersunk holes is to facilitate the mounting plate to be installed in a specified position.

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

[0011] 1). Through the through hole, the workpiece can be cut and processed in one go with high precision;

[0012] 2) The mounting groove and mounting seat can serve as the installation base for the cutting head, making it easy to install and replace the cutting head;

[0013] 3) The first inclined surface, the stopper block, and the second inclined surface can squeeze and tighten the mounting seat, thereby clamping the mounting seat in the mounting groove. When the mounting seat is tightened by the fastener, the stopper block can further tighten the mounting seat laterally to prevent the fastener from loosening and causing the mounting seat to slightly deviate. This can also cause the cutting head mounted on the mounting seat to slightly move, thereby affecting the cutting accuracy of the workpiece outer contour.

[0014] 4). The position of each cutting head can be adjusted by moving the gap, mounting holes, pressing the inclined surface, tightening the bolts, and tilting the circumferential surface, so as to cut workpieces with different outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional Figure 1 ;

[0016] Figure 2 The other side perspective of the present invention is three-dimensional Figure 2 ;

[0017] Figure 3 This is the main view of the utility model;

[0018] Figure 4 for Figure 2 AA cross-section of

[0019] Figure 5 for Figure 3 BB cross-section diagram;

[0020] Figure 6 for Figure 3 CC cross-section diagram.

[0021] Explanation of the accompanying drawings: mounting plate 1, mounting hole 1a, countersunk hole 1b, through hole 1-1, tool head clamping mechanism 2, mounting groove 2-1, mounting seat 2-2, first inclined surface 2-2a, socket 2-2b, guide mounting hole 2-2c, pressing inclined surface 2-2d, tool head mounting groove 2-3, recess 2-3a, second inclined surface 2-3b, cutting tool head 2-4, first inclined surface 2-4a, pressure block 2-5, notch 2-5a, latch 2-5b, limit block 2-6, second inclined surface 2-6a, moving gap 2-7, tightening bolt 2-8, inclined circular surface 2-8a, cutting workpiece 3. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] Referring to the accompanying drawings: This new type of tool includes a mounting plate 1, a through hole 1-1 is opened in the center of the mounting plate 1, and a group of cutter head clamping mechanisms 2 are evenly distributed along the center of the mounting plate 1 are installed on the mounting plate 1; the cutter head clamping mechanism 2 includes a mounting groove 2-1 opened on the mounting plate 1, and a mounting seat 2-2 fastened by a fastener is provided at the mounting groove 2-1, a cutter head mounting groove 2-3 is opened on the mounting seat 2-2, a cutting head 2-4 is fastened to the cutter head mounting groove 2-3 by a fastener, and a pressure block 2-5 pressed on the cutting head 2-4 is fastened to the mounting seat 2-2 by a fastener; a first inclined surface 2-2a is provided on the side of the mounting seat 2-2, and a limit block 2-6 is provided at the side end of the mounting seat 2-2, and a second inclined surface 2-6a cooperating with the first inclined surface 2-2a is provided on the limit block 2-6, and the limit block 2-6 is fastened to the mounting plate 1 by a fastener.

[0024] A notch 2-5a is provided on the bottom surface of the pressing block 2-5, a socket 2-2b is provided on the mounting seat 2-2, and a latch 2-5b that matches the socket 2-2b is fixed on the pressing block 2-5.

[0025] The inner end surface of the cutting bit 2-4 is a first bevel 2-4a, and notches 2-3a are provided at both ends of the inner end surface of the bit mounting groove 2-3. A second bevel 2-3b matching the first bevel 2-4a is located between the two notches 2-3a.

[0026] A moving gap 2-7 is left in the radial direction between the mounting groove 2-1 and the mounting seat 2-2, a guide mounting hole 2-2c is provided on the mounting seat 2-2, a mounting hole 1a connected to the side end of the mounting groove 2-1 is provided on the outer contour of the mounting plate 1, a pressing inclined surface 2-2d is provided on the mounting seat 2-2, a tightening bolt 2-8 is threadedly connected at the mounting hole 1a, and the tightening bolt 2-8 is provided with an inclined circular surface 2-8a that cooperates with the pressing inclined surface 2-2d.

[0027] The mounting plate 1 is provided with a group of countersunk holes 1b evenly distributed along the center of the mounting plate 1 .

[0028] The working principle of the present invention is as follows: first, the mounting plate 1 is fastened to the turning and milling equipment through the countersunk hole 1b, and each cutting head 2-4 is locked in the head mounting groove 2-3 by a fastener. Subsequently, the tightening bolt 2-8 is rotated to press the pressing inclined surface 2-2d by using the inclined circumferential surface 2-8a, thereby adjusting the position of the mounting seat 2-2 in the direction of the moving gap 2-7, and then adjusting the cutting diameter formed between each cutting head 2-4, so as to adapt to the outer contour size of different cutting workpieces 3. After each mounting seat 2-2 is adjusted to its position, the fastener is used to lock the mounting seat 2-2, and then the second inclined surface 2-6a on the limit block 2-6 is pressed on the first inclined surface 2-2a, so that it can not only be used for a long time to prevent the mounting seat 2-2 from being horizontally moved, but also can prevent the mounting seat 2-2 from being horizontally moved. The tool is then installed and the tool is rotated at high speed (the tool can also be moved without rotating, and the workpiece 3 is cut by rotating at high speed). When the workpiece 3 is continuously fed and moved, the multi-cutting heads 2-4 cut the surface of the workpiece 3 multiple times, so that the outer contour of the workpiece 3 can be cut with high chip quality, high precision, high finish and high cutting efficiency, which can be completed at one time, and the processing cost is lower (such as Figure 3 It is worthy of promotion and application.

[0029] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A new type of cutting tool, comprising a mounting plate (1), characterized in that: A through hole (1-1) is provided at the center of the mounting plate (1), and a group of tool head clamping mechanisms (2) are installed on the mounting plate (1) and are evenly distributed along the center of the mounting plate (1); The cutter head clamping mechanism (2) comprises a mounting groove (2-1) formed on the mounting plate (1); a mounting seat (2-2) fastened by a fastener is provided at the mounting groove (2-1); a cutter head mounting groove (2-3) is formed on the mounting seat (2-2); a cutting cutter head (2-4) is fastened to the cutter head mounting groove (2-3) by a fastener; and a pressing block (2-5) pressed against the cutting cutter head (2-4) is fastened to the mounting seat (2-2) by a fastener. A first inclined surface (2-2a) is provided on the side of the mounting seat (2-2), a limiting block (2-6) is provided on the side end of the mounting seat (2-2), a second inclined surface (2-6a) cooperating with the first inclined surface (2-2a) is provided on the limiting block (2-6), and the limiting block (2-6) is fastened to the mounting plate (1) by a fastener.

2. A new type of cutting tool according to claim 1, characterized in that: The bottom surface of the pressing block (2-5) is provided with a notch (2-5a), the mounting seat (2-2) is provided with a socket (2-2b), and a latch (2-5b) matched with the socket (2-2b) is fixed on the pressing block (2-5).

3. A new type of cutting tool according to claim 1, characterized in that: The inner end surface of the cutting bit (2-4) is a first bevel (2-4a), and notches (2-3a) are provided at both ends of the inner end surface of the bit mounting groove (2-3). A second bevel (2-3b) matching the first bevel (2-4a) is located between the two notches (2-3a).

4. A new type of cutting tool according to claim 1, characterized in that: A moving gap (2-7) is left between the mounting groove (2-1) and the mounting seat (2-2) in the radial direction, a guide mounting hole (2-2c) is provided on the mounting seat (2-2), a mounting hole (1a) communicating with the side end of the mounting groove (2-1) is provided on the outer contour of the mounting plate (1), a pressing inclined surface (2-2d) is provided on the mounting seat (2-2), a tightening bolt (2-8) is threadedly connected to the mounting hole (1a), and the tightening bolt (2-8) is provided with an inclined circumferential surface (2-8a) cooperating with the pressing inclined surface (2-2d).

5. A new type of cutting tool according to claim 1, characterized in that: The mounting plate (1) is provided with a group of countersunk holes (1b) evenly distributed along the center of the mounting plate (1).

Images