TWM615404U - Integrated reaming and rolling tool - Google Patents

Abstract

A reaming and rolling integrated cutter includes a cutter bar, a plurality of side blades ringed on the cutter bar, and two adjusting rings set on the cutter bar and used for fixing the side blades. Each blade includes an axially extending blade body, a reamer blade arranged on one side of the blade body part, and a hob blade respectively arranged on one side of the blade body part. The cutter body has a first surface for the reamer blade, a second surface above the first surface and for the hob blade, and a surface facing opposite to the first surface and the second surface The shank has an inclined surface extending obliquely. The side blades can be protruded or folded along the radial direction of the cutter bar to meet the needs of different inner diameters, and then by rotating the cutter bar, the side blades can perform the operation of reaming first and then rolling, thereby expanding Hole to the required inner diameter range.

Description

Reaming and rolling integrated tool

The new model relates to a cutter, in particular to a reaming and rolling integrated cutter.

When drilling, a fine reaming drill is usually used to apply a hole to the hole, thereby reaming the hole to a preset inner diameter range. At this time, the inner wall surface of the hole is uneven, and the inner diameter is slightly different from the preset inner diameter range. Therefore, it is necessary to use a roller burnishing tool to squeeze the inner wall surface of the hole for the second reaming, which can compress the inner wall surface of the hole to make the inner diameter uniform and reduce the inner wall of the hole at the same time. The error value of the diameter can be more accurately reached the required preset value to complete high-precision drilling operations.

However, during the entire drilling process, it is necessary to switch between the fine reaming drill and the rolling tool for different purposes to complete the hole with uniform inner diameter and reach the required inner diameter. The processing steps in the process are not only complicated, but also If you need to correspond to the size of the hole of different specifications, you also need to replace the fine reaming drill and the rolling tool of different sizes according to the specifications, which causes the operator to carry more tools with him to cope with various processing The conditions are quite inconvenient, and the construction efficiency will also drop a lot, so the above shortcomings need to be improved.

Therefore, the purpose of the present invention is to provide an integrated reaming and rolling tool with drilling, reaming and rolling.

Therefore, the new reaming and rolling integrated tool includes a tool bar, a plurality of side blades ringed on the tool bar, and two sets of adjusting rings provided on the tool bar. The cutter bar extends up and down along an axis, and the surface is recessed inward to form a plurality of blade grooves that extend along the axis and are arranged around the axis at intervals. The depth of each blade groove in the radial direction gradually increases toward the extending direction of the axis. Several side blades are respectively assembled in the blade slots. Each blade includes a blade body portion extending along the axis, a reamer blade arranged on one side of the blade body portion along the circumferential direction of the blade, and a blade body portion respectively arranged along the blade The hob blade on one side of the rod in the radial direction. The cutter body has a first surface facing outwards and provided with the reamer blade, a second surface located above the first surface and provided with the hob blade, and a surface opposite to the first surface and the second surface. The surface faces the corresponding blade groove, and corresponds to the inclined surface extending obliquely along the extending direction of the axis corresponding to the blade groove. The reamer blades and the hob blades extend along the direction of the axis. When each side blade is operated to move along the blade slot, the side blade simultaneously protrudes outward or retracts inward along the radial direction of the cutter bar. The adjusting rings are sleeved on the knife shaft at intervals, and are respectively used to push against the two ends of the side blades, so that the side blades are fixed on the knife shaft.

The effect of the present invention is: because the reamer blades and the hob blades are sequentially arranged on the cutter bar along the direction of the axis, so that when the cutter bar rotates on the axis as the rotation axis, it can drive the side The blade rotates to ream a hole through the reamer blades. At the same time, the wall surface of the hole is rolled by the hob blades to be trimmed to be uniform and accurately reach the required inner diameter size. The above-mentioned single operation step can achieve the effect of reaming and rolling integration, thereby improving the processing efficiency.

1: Tool holder

11: Main body

110: blade slot

111: Outer screw surface

112: Top-to-face

113: Side

12: Extension

120: positioning slot

121: Extended screw surface

122: bump

123: The first inner ring surface

124: second inner ring surface

125: inner screw hole

2: side blade

20: Chip hole

21: Knife body

211: first side

212: The second side

213: Inclined surface

214: Transition surface

215: The first interface

216: The second interface

22: Reamer blade

23: hob blade

231: hob section

3: adjustment ring

31: Inner screw surface

310: Annular Space

4: Milling cutter

41: cutter head

410: Groove

411: Through Hole

42: positioning block

43: Milling cutter edge

5: Lock the firmware

51: Long pole

52: Screw connection part

A: Hole

B: inner wall

L: axis

The other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: Figure 1 is an incomplete partial exploded view from a side view, illustrating one of the first of the new reaming and rolling integrated cutters. Example; Figure 2 is an incomplete three-dimensional exploded view, illustrating the first embodiment, a milling cutter, and a locking member; Figure 3 is a front view, illustrating a side blade of the first embodiment; Figure 4 Is a side view illustrating a reamer edge and a hob edge of the side blade; Figure 5 is a top view illustrating a chip flute of the side blade; Figure 6 and Figure 7 are both incomplete side views, respectively illustrating The situation in which the side blades of the first embodiment move in the direction of an axis; FIG. 8 is a schematic diagram illustrating the process of processing a hole in the first embodiment; Figure 9 is an incomplete partial exploded view from a side view, illustrating a second embodiment of the new reaming and rolling integrated cutter; Figure 10 is an incomplete side view illustrating the side blades of the second embodiment Moving situation; and Figure 11 is a side view illustrating a side blade of a third embodiment of the new reaming and rolling integrated cutter.

Referring to Figures 1 and 2, a first embodiment of the new reaming and rolling integrated cutter includes a cutter bar 1, four side blades 2 arranged around the cutter bar 1 (Fig. 1 shows the angle Only two are shown), two adjusting rings 3 sleeved on the cutter bar 1, a milling cutter piece 4 installed on one end of the cutter bar 1, and a milling cutter piece 4 passing through the cutter bar 1. Locking fixture 5 on the tool bar 1.

The shank 1 includes a main body portion 11 extending up and down along an axis L, and an extension portion 12 extending from one end of the main body portion 11 downward along the axis L. The main body portion 11 has two outer spiral surfaces 111 that surround the axis L and are spaced along the direction of the axis L and face the radial direction. The main body portion 11 is recessed inward from the outer screw surfaces 111 to form a plurality of blade grooves 110 extending along the axis L and arranged around the axis L at intervals. Each blade groove 110 is formed by an abutting surface 112 facing in the radial direction, and two side surfaces 113 (only one indicated in FIG. 1) connected to the two sides of the abutting surface 112 and extending in the radial direction. Defined. Wherein, the depth of each blade groove 110 in the radial direction gradually increases downward along the extending direction of the axis L. Specifically, the distance from the abutting surface 112 to the axis L in a direction perpendicular to the axis L, As the extending direction of the axis L goes down, it gradually decreases. The extension portion 12 has an extension thread surface 121 that is connected to one of the outer thread surfaces 111, two protrusions 122 projecting at intervals along the axis L away from the main body portion 11, and a protrusion 122 opposite to the extension The screw surface 121 surrounds the first inner ring surface 123 of the axis L, and a second inner ring surface 124 extending upward along the axis L from the first inner ring surface 123 and forming a thread. The first inner annular surface 123 surrounds and defines a positioning groove 120 located between the protrusions 122, and the second inner annular surface 124 surrounds and defines a connecting positioning groove 120, and the inner diameter is smaller than the inner diameter of the positioning groove 120. Threaded hole 125.

Referring to FIGS. 3 to 5 in conjunction with FIG. 1, the side blades 2 extend along the direction of the axis L and are assembled in the blade grooves 110 respectively. Each blade 2 includes a blade body 21 extending in the direction of the axis L, a reamer blade 22 provided on one side of the blade body 21 along the circumferential direction of the blade 1, and a blade 22 respectively provided with the blade The cutter body 21 is a hob edge 23 along one side of the radial direction of the cutter bar 1 and spaced from the reamer edge 22 in the direction of the axis L. It should be particularly noted that the material of the side blades 2 is preferably tungsten steel with high hardness, high toughness, wear resistance, corrosion resistance, heat resistance and resistance to chip sticking, but it is not limited to this. The cutter body portion 21 has a first surface 211 facing outwards and provided for the reamer blade 22, a second surface 212 spaced above the first surface 211 and provided for the hob blade 23, and a second surface 212 opposite to the first surface 211. The first surface 211 and the second surface 212 face the corresponding blade The groove 110 corresponds to the inclined surface 213 extending obliquely along the extending direction of the axis L corresponding to the blade groove 110, a transition surface 214 located between the first surface 211 and the second surface 212, and a connecting surface 211 and A first connecting surface 215 of the transition surface 214 and a second connecting surface 216 connecting the second surface 212 and the transition surface 214. The transition surface 214, the first engagement surface 215, and the second engagement surface 216 of the blade 2 on each side cooperate to define a chip removal hole 20 through which fine chips can pass.

The reamer blades 22 extend in the direction of the axis L for performing reaming operations. The hob blades 23 extend in the direction of the axis L and are used to press the hole wall to perform the hole adjustment operation. The distance from the hob edge 23 of each side of the blade 2 to the axis L in the radial direction of the shank 1 is slightly larger than the distance from the reamer edge 22 to the axis L in the radial direction of the shank 1. From the perspective of the axis L, the outer edge of each hob blade 23 is arc-shaped as shown in FIG. The curvature of 231 can be the same or different. In the first embodiment, the shape of each side blade 2 can be adjusted corresponding to the corresponding blade groove 110, so that the distance between the inclined surface 213 and the first surface 211 along the radial direction of the tool holder 1 , Is greater than the distance from the inclined surface 213 to the second surface 212 along the radial direction of the shank 1. In addition, for the convenience of description, the above-mentioned second surface 212 is defined as an independent object, so as to describe the relative positions of the first surface 211, the inclined surface 213 and the hob blade 23. However, in actual situations, the second surface 212 will be covered by the hob blade 23, so it is marked with an imaginary line in FIG. 3.

Referring to FIGS. 5 to 6, it is particularly important to note that, in the first embodiment, when the blade 2 on each side is operated and moves upward along the blade groove 110, due to the top contact with the inclined surface 213 The distance from the abutting surface 112 to the axis L in the radial direction of the shank 1 gradually increases, so that the side blade 2 moves away from the axis L at the same time as shown in FIG. 6 and faces outward in the radial direction of the shank 1 Bulge. Conversely, when each side blade 2 is operated to move downward along the blade groove 110, the distance from the abutting surface 112 that contacts the inclined surface 213 to the axis L in the radial direction of the shank 1 Decrease gradually, so that the side blade 2 approaches the axis L at the same time as shown in FIG.

1 and 2 again, the adjusting rings 3 are sleeved on the knife bar 1 at intervals, and are used to push against the two ends of the side blades 2, so that the side blades 2 are fixed to the knife Rod 1. Each adjusting ring 3 has an inner screw surface 31 for screwing the outer screw surface 111 and the extension screw surface 121, and can be operated to move back and forth on the cutter bar 1 along the extension direction of the axis L . Wherein, each adjusting ring 3 cooperates with the main body portion 11 to define an annular space 310 through which one end of the side blades 2 can be inserted, so that when the adjusting ring 3 is pushed against the side blades 2 When one end of 2 is used, the side blades 2 can be fixed to prevent the side blades 2 from being separated from the blade grooves 110.

The milling cutter piece 4 is detachably connected to the extension portion 12 of the shank 1 and is located below the side inserts 2, and as shown in FIG. 2, the outer edge is along the radial direction of the shank 1 to the axis The distance L is smaller than the distance from the first surface 211 along the radial direction of the shank 1 to the axis L to perform pre-drilling operations to facilitate subsequent operations of the side blades 2. Wherein, the milling cutter piece 4 has a cutter head 41 extending along the axis L and in a ring shape to define a through hole 411, and two protruding from the cutter head 41 in the direction of the cutter bar 1 along the axis L A positioning block 42 for inserting the positioning slot 120 and a plurality of milling cutter blades 43 arranged around the cutter head 41. The end face of the cutter head 41 facing the extension 12 is recessed inwardly to form two grooves 410 for embedding the protrusions 122, so that the cutter head 41 and the cutter shaft 1 can be combined with each other to rotate coaxially, thereby avoiding the The idling situation of relative sliding between the cutter head 41 and the cutter bar 1 occurs. In particular, it should be noted that by inserting the positioning blocks 42 into the positioning groove 120 and abutting against the first inner ring surface 123, the concentricity between the cutter head 41 and the cutter shaft 1 can be maintained. It is avoided that the cutter head 41 is inclined to the axis L and skew occurs when it rotates.

The locking member 5 extends along the axis L, and can pass through the milling cutter piece 4 and the extension portion 12 of the tool shank 1 along the direction of the axis L at the same time, so as to fix the milling cutter piece 4 on the cutter On pole 1. The locking member 5 includes a long rod portion 51 that can penetrate through the through hole 411, and a threaded portion extending from one end of the long rod portion 51 and forming an external thread for screwing in the inner screw hole 125 52. Among them, the locking member 5 is preferably a screw, but not limited to this.

When assembling the first embodiment, first the inclined surfaces 213 face the abutting surfaces 112 respectively, and the side blades 2 are placed in the blade grooves 110, and the side blades 2 are adjusted along the axis. The position in the direction of L can simultaneously adjust the distance from the first surface 211 and the second surface 212 to the axis L to facilitate the processing requirements of different inner diameters. catch Then, rotate the adjusting rings 3 to move up and down in the direction of the axis L until the opposite ends of the side blades 2 are pushed against, and the upper and lower ends of the side blades 2 are inserted into the rings respectively In the shaped space 310, the side blades 2 can be fixed on the knife shaft 1. Finally, the positioning blocks 42 of the milling cutter 4 are inserted into the positioning grooves 120 of the extension portion 12, and the protrusions 122 of the extension portion 12 are embedded in the grooves of the extension portion 12. In 410, the locking member 5 penetrates the milling cutter piece 4 and is screwed to the inner screw hole 125, so that the milling cutter piece 4 is fixed on the cutter bar 1 along the axis L direction.

Referring to FIG. 8, when the first embodiment is used, after aligning the milling cutter piece 4 to the position to be drilled, the cutter bar 1 is rotated to drive the milling cutter piece 4 to rotate with the axis L as the axis of rotation. The torque generated when the milling cutter blades 43 of the milling cutter piece 4 rotate, thereby generating a cutting force, digs a hole A, and completes the pre-drilling operation. Then, while the milling cutter 4 drills the hole A, the side blades 2 quickly rotate around the axis L, so that the reamer blades 22 cut the hole A in the circumferential direction and follow the axis. Advance in the direction of L, thereby expanding the inner diameter of the hole A, and achieving the first reaming of the rough machining. At the same time, when the hob blades 23 contact an inner wall B of the hole A, the hob blades 23 press the inner wall B along the radial direction of the cutter bar 1, thereby compressing the density of the inner wall B, and Then, the inner diameter of the hole A is enlarged to the required inner diameter range, and the second reaming of the fine processing is achieved.

Through the spatial structure in which the reamer blade 22 and the hob blade 23 of each blade 2 are distributed in the direction of the axis L, the hole A can be reamed first and then rolled. The reaming operation can make the inner diameter of the hole A uniform and consistent along the direction of the axis L, and accurately reach the required inner diameter size. In addition, by using the different designs of the depth of the blade grooves 110 along the extending direction of the axis L, and cooperating with the structure in which the inclined surfaces 213 are inclined to the extending direction of the axis L, each reamer edge 22 can be adjusted. The distance from each hob blade 23 to the axis L along the radial direction of the cutter bar 1 can satisfy different processing environments and requirements to improve product applicability.

In addition, it should be noted that the milling cutter piece 4 of the first embodiment can be assembled in the structure design of the tool holder 1, and the milling cutter piece 4 of different specifications can be replaced according to different processing requirements, which further improves the product quality. applicability. In addition, by inserting the positioning blocks 42 into the positioning groove 120 and at the same time cooperating with the connecting structure in which the protrusions 122 are embedded in the grooves 410, not only can the milling cutter 4 and the cutter bar be prevented 1 to avoid idling, and to maintain the concentricity between the milling cutter 4 and the tool holder 1, so as to avoid skew when the milling cutter 4 rotates. Improve the accuracy of processing.

Refer to Figures 9 and 10, which is a second embodiment of the new reaming and rolling integrated tool. The difference from the first embodiment is that the depth of each blade groove 110 is upward along the extending direction of the axis L And gradually increase. The distance from the inclined surface 213 of the blade 2 on each side to the first surface 211 in the radial direction of the shank 1 is smaller than the distance from the inclined surface 213 to the second surface 212 in the radial direction of the shank 1 .

Through the second embodiment of the blade grooves 110 and the side blades 2 The aspect is opposite to the aspect of the first embodiment, so that when the side blades 2 move up and down along the axis L, the trend of the outer diameter gradually expanding and tapering is opposite to that of the first embodiment, thereby satisfying different operation requirements .

Refer to Figure 11, which is a third embodiment of a new type of integrated reaming and rolling tool. The difference from the first embodiment is that the reamer edge 22 of each side blade 2 runs along the cutter bar 1 (see Figure 1 The distance from the radial direction of) to the axis L gradually increases along the extension direction of the axis L. In order to simplify the illustration, FIG. 11 omits some components, and only shows the axis L and a side blade 2 to show the state of the reamer blade 22 changing along the axis L.

With the design that each reamer blade 22 is inclined to the axis L and gradually expands, the hole A (refer to FIG. 8) can be reamed without step difference, so that the hole A can be gradually moved along the radial direction of the tool shaft 1. The direction is increased to avoid the occurrence of excessive wear of the reamer blade 22, thereby increasing the service life. In addition, the third embodiment can also be improved by the side blades 2 of the second embodiment to meet different operating requirements.

To sum up, the new type reaming and rolling integrated cutter, through the design of the milling cutter blades 43 and the hob cutter blades 23 are arranged on the cutter bar 1, and then cooperate with the side blades 2 to quickly rotate around the axis L Under the mechanism, only a single operation step can simultaneously perform enlargement reaming and rolling finishing operations to achieve the effect of reaming and rolling integration, thereby improving construction efficiency. In addition, with the design that the side inserts 2 can move in the insert grooves 110 to protrude outward or condense inward, and the milling cutter piece 4 can be replaced The tool holder 1 further improves the processing applicability to meet different needs, so it can indeed achieve the purpose of new cost.

However, the above is only the first embodiment of the present model, and should not be used to limit the scope of implementation of the present model. Any simple equivalent changes and modifications made in accordance with the scope of the patent application for the present model and the contents of the patent specification are all It is still within the scope of this new patent.

1: Tool holder

11: Main body

110: blade slot

111: Outer screw surface

112: Top-to-face

113: Side

12: Extension

120: positioning slot

121: Extended screw surface

125: inner screw hole

2: side blade

20: Chip hole

211: first side

212: The second side

213: Inclined surface

214: Transition surface

215: The first interface

216: The second interface

22: Reamer blade

23: hob blade

3: adjustment ring

31: Inner screw surface

310: Annular Space

4: Milling cutter

41: cutter head

411: Through Hole

42: positioning block

43: Milling cutter edge

5: Lock the firmware

L: axis

Claims (13)

A reaming and rolling integrated tool, comprising: a shank extending up and down along an axis, and the surface is recessed inward to form a plurality of blade grooves extending along the axis and arranged around the axis at intervals, and each blade groove is along the radial direction The depth gradually increases toward the extension direction of the axis; several side blades are respectively assembled in the blade grooves, and each side blade includes a blade body extending along the direction of the axis, and a blade disposed along the blade body. A reamer blade on one side of the cutter shaft in the circumferential direction, and a hob blade respectively disposed on the opposite side of the cutter body part in the radial direction of the cutter shaft, the cutter body part has an outward facing and for the A first surface on which the reamer blade is provided, a second surface on which the hob blade is provided above the first surface, and a corresponding blade groove opposite to the first surface and the second surface, and An inclined surface extending obliquely along the extending direction of the axis corresponding to the blade groove. Each reamer edge and each hob edge extend along the direction of the axis. When each side blade is operated to move along the blade groove, the side The blades will simultaneously protrude outwards or fold inwards along the radial direction of the knife bar; and two adjusting rings are sleeved on the knife bar at intervals and are used to push against the two ends of the side blades respectively , So that the side blades are fixed to the shank. The reaming and rolling integrated tool according to claim 1, wherein the tool bar has at least one outer thread surface that surrounds the axis and faces in a radial direction, and the tool bar is recessed inwardly by the at least one outer thread surface to form the blades Groove, each adjusting ring has an inner screw surface that is screwed to the at least one outer screw surface, and can be operated along the The extension direction of the axis moves up and down. The reaming and rolling integrated tool according to claim 1, wherein the depth of each blade groove in the radial direction gradually increases downwards along the extending direction of the axis, and the inclined surface of each blade is along the tool shaft The distance from the radial direction to the first surface is greater than the distance from the inclined surface to the second surface along the radial direction of the shank. The reaming and rolling integrated tool according to claim 1, wherein, taking the axis as the end point of the viewing angle, each hob edge has a plurality of arc-shaped hob segments that are connected to each other. The reaming and rolling integrated tool according to claim 1, wherein the hob and the reaming edge of each side of the blade are spaced apart. The reaming and rolling integrated tool according to claim 1, wherein each adjustment ring cooperates with the tool bar to define an annular space through which one end of the side blades can be inserted. The reaming and rolling integrated tool according to claim 2, further comprising a milling cutter piece detachably arranged at one end of the tool holder for drilling, and the tool holder includes a main body portion with the outer screw surface , And an extension part extending downward from one end of the main body part along the axis and used for connecting the milling cutter piece. The extension part has an extension screw surface that engages the outer screw surface and can be screwed to the inner screw surface. The reaming and rolling integrated tool according to claim 7, wherein the extension portion further has two protrusions projecting at intervals from the end along the axis toward the direction of the milling cutter, and a spiral surface opposite to the extension Surrounding the first inner ring surface defining a positioning groove located between the protrusions, the milling cutter piece has a cutter head extending along the axis and in a ring shape, and at least one head from the cutter head to the cutter along the axis The direction of the rod protrudes to insert the positioning block of the positioning groove, and at least one milling cutter edge arranged on the outer periphery of the cutter head. The end surface of the cutter head facing the cutter rod is recessed to form two separate The groove where the bump is embedded. The reaming and rolling integrated tool according to claim 8, further comprising a locking member that extends along the axis and can pass through the milling tool piece and the extension at the same time along the direction of the axis, and the lock member is used to make The milling cutter piece is fixed on the cutter bar. The reaming and rolling integrated tool according to claim 9, wherein the extension portion further has a second inner ring surface extending upward along the axis from the first inner ring surface, and the second inner ring surface defines a communication The positioning groove has an inner diameter smaller than the positioning groove and is used for an inner screw hole for the locking member to be screwed, and the cutter head surrounds and defines a through hole for the locking member to penetrate. The reaming and rolling integrated tool according to claim 1, wherein the distance from the reamer edge of each side blade to the axis along the radial direction of the tool bar increases upward along the extension direction of the axis. The reaming and rolling integrated tool according to claim 1, wherein the distance from the hob edge of each side blade along the radial direction of the cutter bar to the axis is greater than the distance from the reaming edge along the radial direction of the cutter bar to the axis. The distance of this axis. The reaming and rolling integrated tool according to claim 5, wherein each side blade further has a transition surface between the first surface and the second surface, and a first surface connecting the first surface and the transition surface. An engagement surface, and a second engagement surface that connects the second surface and the transition surface, and cooperates with the transition surface and the first connection surface to define a chip removal hole through which fine chips can pass.

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