Die reaming cutter

Abstract

The utility model provides a die broaching cutter which comprises a cutter body, one end of the cutter body is installed on a cutter handle through a clamping device, the other end of the cutter body is provided with a plurality of bottom blades, each bottom blade is integrally connected with a side blade, the side blades are spirally distributed on the side wall of the cutter body, chip grooves facilitating chip removal are formed between the side blades, and the side blades are arranged on the side wall of the cutter body. According to the die broaching tool, position deviation generated when a die is used for machining a hole can be corrected in time, the precision of the hole machining position is guaranteed, the machining quality of the hole is guaranteed, the tool can be cooled, abrasion of the tool is reduced, the machining efficiency is improved, and the machining quality is improved. The service life of the tool is prolonged, meanwhile, scrap iron generated during reaming can be discharged in time, the die reaming efficiency is greatly improved, and the machining time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould processing technical field, especially a mould reaming cutter. BACKGROUND

[0002] Knuckle is one of main parts on automobile steering axle, can make automobile steady travel and sensitive transmission travel direction, the function of knuckle is to bear the load of automobile front part, supports and drives front wheel to rotate around the main pin and makes automobile steering, under the automobile travel state, it bears changeable impact load, therefore, requires that it has very high strength.

[0003] Differential pressure casting is the latest process equipment of casting knuckle, solves the contradiction of filling stability and feeding, greatly improves the quality of casting, in the process of casting, the demand of mould processing technology and processing efficiency is very high, especially the size accuracy and processing efficiency of key position in mould processing are higher.

[0004] When needing to carry out reaming processing to the mould, the traditional mode is to use reamer to process hole, this processing mode not only has long processing time and low efficiency, and once the position of hole is deviated during finish machining of the mould, the reamer will carry out reaming processing along the direction of hole, cannot correct the direction of hole, finally leads to the position deviation of hole, influences the processing quality of hole, cannot satisfy the normal use requirement of the mould, simultaneously, this processing mode is prone to the problems such as poor chip removal, difficult cooling of cutting part during the deep hole processing of the mould, reduces the processing precision, aggravates the tool wear, shortens the service life of tool. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the technical insufficiency, provides a mould reaming cutter.

[0006] Therefore, the utility model provides a mould reaming cutter, including cutter body, one end of cutter body is installed on tool shank through clamping device, the other end is equipped with a plurality of bottom blades, the integrated connection of each bottom blade has side blade, the side blade is helically distributed on the side wall of cutter body, the chip removal groove that is convenient for chip removal is arranged between side blade, cooling component is arranged on chip removal groove, and the cooling component is used for cooling side blade and bottom blade.

[0007] Preferably, the bottom blades are circumferentially distributed.

[0008] Preferably, the side of the bottom blade away from the central axis of the cutter body is in the shape of an inner arc.

[0009] Preferably, the cooling component includes a plurality of injection holes for injecting cutting fluid, and each chip removal groove is provided with a plurality of injection holes.

[0010] Preferably, the clamping device comprises a collet and a locking nut, the collet is inserted with the locking nut, the tool body passes through the locking nut and the collet in sequence, and the locking nut is threadedly connected with the tool shank.

[0011] Preferably, the collet comprises a clamping head and a clamping body, the clamping head is fixedly connected with the clamping body, and the locking nut is provided with a locking groove.

[0012] Preferably, the clamping head is in the shape of a trapezoid in cross section.

[0013] The die reaming cutter has the following beneficial effects.

[0014] (1) The side surface of the tool body is provided with side edges, and the bottom is provided with a bottom edge, the side edges are used for machining the side wall of the hole, the reaming operation is realized, and the machining size precision of the hole is ensured; the bottom edge mainly plays a cutting role, the position deviation generated when the die machining hole is corrected in time, the rough stock allowance of the hole is corrected, the precision of the hole machining position is ensured, the machining quality of the hole is ensured, and the use requirement of the die is met.

[0015] (2) The tool body is installed on the machine tool through the tool shank, the automation operation of the die reaming is realized, the efficiency of the die reaming is greatly improved, the machining time is shortened, and the production cost is saved.

[0016] (3) The spiral-shaped chip removal grooves are arranged between the side edges, the iron chips can be discharged in time in the machining process, the chip removal grooves are prevented from being blocked in the machining hole, and the normal reaming operation is avoided.

[0017] (4) The cooling component is arranged on the chip removal groove, the cooling component supplies the cutting fluid to the bottom edge and the side edge, the side edge and the bottom edge can be cooled in time, the temperature of the cutting edge is reduced, the wear of the cutting edge is reduced, the service life of the cutter is improved, the iron chips remaining in the chip removal groove are discharged, and the smooth operation of the die reaming work is ensured.

[0018] (5) The tool body is installed on the tool shank through the collet and the locking nut, the tool body can be quickly fixed, the cutter is prevented from loosening or falling off in the process of reaming and cutting, the operation mode is simple, the stability and firmness of the cutter reaming process are enhanced, and the reaming efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure schematic view of the die reaming cutter in the embodiment;

[0020] Figure 2 is Figure 1 a partial enlarged view of part A in figure 1;

[0021] Figure 3 This is a schematic diagram of the bottom cutting edge in this embodiment;

[0022] Figure 4 This is a schematic diagram of the clamping device in this embodiment;

[0023] Figure 5 This is a cross-sectional view of the clamping device in this embodiment.

[0024] The markings in the diagram are: 1. Tool body; 2. Clamping device; 21. Collet; 211. Clamping head; 212. Clamping body; 22. Locking nut; 3. Tool holder; 4. Bottom cutting edge; 5. Side cutting edge; 6. Chip removal groove; 7. Spray hole; 8. Locking groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0026] Example:

[0027] like Figures 1-5 As shown, this utility model provides a mold reaming tool, including a tool body 1. One end of the tool body 1 is mounted on a tool holder 3 via a clamping device 2, and the other end is equipped with multiple bottom cutting edges 4. Each bottom cutting edge 4 is integrally connected with a side cutting edge 5. The side cutting edges 5 are spirally distributed on the side wall of the tool body 1. Chip removal grooves 6 are provided between the side cutting edges 5 to facilitate chip removal. Cooling components are provided on the chip removal grooves 6 to cool the side cutting edges 5 and the bottom cutting edges 4. Specifically, in this embodiment, there are three bottom cutting edges 4, which are evenly distributed in the circumferential direction around the central axis of the tool body 1 and rotate and cut in the same direction.

[0028] One end of the cutter body 1 is mounted on the tool holder 3 via the clamping device 2. The tool holder 3 is fixedly mounted on the machine tool. When the machine tool drives the cutter body 1 to rotate and enlarge the hole in the mold, the side cutting edge 5 processes the side wall of the hole to achieve the appropriate dimensional accuracy. At the same time, the bottom cutting edge 4 is used to correct the position of the hole, ensuring the positional accuracy of the hole and meeting the requirements of the mold. The iron chips generated during the processing are discharged from the spiral chip removal groove 6 to prevent the iron chips from accumulating in the hole and affecting the processing quality and speed of the hole.

[0029] In the process of reaming the mold, the cooling component sprays cutting fluid outward, and the cutting fluid acts on the bottom blade 4 and the side blade 5, and the cutting fluid can take away the heat generated in the cutting process, thereby reducing the temperature of the cutting area, preventing the tool and the mold from being damaged due to overheating, and also effectively flushing and cleaning a large amount of iron filings and metal powder generated in the cutting process, preventing the damage of the tool caused by the iron filings and impurities, prolonging the service life of the tool, and improving the machining precision.

[0030] Further, the bottom blades 4 are circumferentially distributed, which can make the bottom blades 4 contact the mold at multiple points at the same time during rotation, greatly improving the machining efficiency and facilitating the correction of the position of the offset hole.

[0031] Further, the side of the bottom blade 4 away from the central axis of the tool body 1 is in the shape of an inner arc, which can make the tool more smooth during cutting, reduce the resistance in the cutting process, thereby improving the cutting efficiency, and also make the cutting force more uniformly distributed on the front side of the bottom blade 4, avoid the damage of the tool caused by excessive local cutting force, and facilitate the cutting of annular iron filings, facilitate the discharge of iron filings, and avoid the accumulation of iron filings around the tool, which can cause an increase in cutting force or damage to the tool.

[0032] Further, the cooling component includes a spray hole 7 for spraying cutting fluid, a plurality of spray holes 7 are arranged on each of the chip grooves 6, a communication pipeline is arranged inside the tool body 1, the spray holes 7 are in communication with the communication pipeline, and the communication pipeline is used to deliver external cutting fluid to the spray holes 7.

[0033] The cutting fluid is sprayed to the cutting area through the spray holes 7, which can quickly cool the tool, reduce the temperature of the cutting area, prevent the tool from being damaged due to overheating, and prolong the service life of the tool.

[0034] Further, the clamping device 2 includes a collet 21 and a locking nut 22, the collet 21 is inserted into the locking nut 22, the tool body 1 sequentially passes through the locking nut 22 and the collet 21, and the locking nut 22 is threadedly connected with the tool handle 3.

[0035] The collet 21 is inserted into the locking nut 22, and then the locking nut 22 is installed on the tool handle 3. The tool body 1 is sequentially fixed and installed on the tool handle 3 by passing through the locking nut 22 and the collet 21, which realizes the quick fixing of the tool body 1, the fixing mode is simple and firm, and the stability of the tool body 1 during the reaming process is enhanced.

[0036] Further, the collet 21 includes a clamping head 211 and a clamping body 212, the clamping head 211 is fixedly connected with the clamping body 212, a locking groove 8 is formed in the locking nut 22, and the clamping head 211 is inserted into the locking groove 8.

[0037] The clamping head 211 is screwed into the locking groove 8, the tool body 1 passes through the locking nut 22, and then passes through the clamping head 211 and the clamping body 212, and the clamping head 211 and the clamping body 212 are expanded to clamp the tool body 1.

[0038] Further, the clamping head 211 is trapezoidal in cross section, and the width of the front end of the vertical cross section of the clamping head 211 is smaller than the width of the rear end, so that the clamping head 211 can be more conveniently and smoothly inserted into the locking groove 8, and the utility is high.

[0039] The working principle of the embodiment is as follows:

[0040] First, the clamping head 211 is screwed into the locking groove 8, and then the locking nut 22 is tightened with the tool shank 3 on the machine tool, and then the tool body 1 is inserted into the locking nut 22 and the collet 21 for fixation.

[0041] During reaming, the tool body 1 is inserted into the machining hole of the mold, the machine tool is started to drive the rotation of the tool body 1, the position of the hole and the side wall of the machining hole are corrected in time under the action of the bottom blade 4 and the side blade 5, the cutting fluid is sprayed to the cutting area through the spray hole 7, the temperature of the cutting area is reduced, and at the same time, the iron filings generated during the cutting process are also discharged through the spiral-shaped chip groove 6.

[0042] In the description of the utility model, it is understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation on the utility model.

[0043] The above is only a specific embodiment of the utility model, and cannot limit the scope of the utility model, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the utility model patent protection should still fall within the scope of the utility model claims.

Claims

1. A die reaming tool comprising a tool body (1), characterized in that, One end of the cutter body (1) is installed on the cutter handle (3) through the clamping device (2), and the other end is provided with a plurality of bottom blades (4), each of which is integrally connected with a side blade (5), the side blades (5) are spirally distributed on the side wall of the cutter body (1), and the side blades (5) are provided with chip removal grooves (6) for facilitating chip removal, and the chip removal grooves (6) are provided with cooling components for cooling the side blades (5) and the bottom blades (4).

2. A die reaming tool according to claim 1, wherein A plurality of the bottom blades (4) are circumferentially distributed.

3. A die reamer tool according to claim 1, wherein The bottom blade (4) is arc-shaped away from the central axis of the cutter body (1).

4. A die reamer tool according to claim 1, wherein The cooling component comprises a spray hole (7) for spraying cutting fluid, and a plurality of the spray holes (7) are arranged on each of the chip removal grooves (6).

5. A die reamer tool according to claim 1, wherein The clamping device (2) comprises a collet (21) and a locking nut (22), the collet (21) is inserted into the locking nut (22), the cutter body (1) passes through the locking nut (22) and the collet (21) in sequence, and the locking nut (22) is threadedly connected with the cutter handle (3).

6. A die reamer according to claim 5, wherein, The collet (21) comprises a clamping head (211) and a clamping body (212), the clamping head (211) is fixedly connected with the clamping body (212), the locking nut (22) is provided with a locking groove (8), and the clamping head (211) is inserted into the locking groove (8).

7. A die reamer tool according to claim 6, wherein The cross section of the clamping head (211) is trapezoidal.

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