TW200808472A - Tool holder spindles - Google Patents

Abstract

A tool holder spindle I comprising a shaft 4, a spindle body 2 comprising at least one bearing 3 within which the shaft 4 is journalled for rotation relative to the spindle body 2, a tool holder 5 for holding a tool, and an axially moveable actuator portion 6 disposed within the shaft for actuating the tool holder. The tool holder 5 being mounted within the shaft 4 and comprising: a tool receiving portion B having at least one deformable tool gripping portion 55; and at least one wedge portion 58 arranged to act on the deformable tool gripping portion 55 and arranged for axial movement relative to the tool receiving portion under action of the axially moveable actuator portion 6, wherein axial movement of the actuator portion 6 in a first direction causes axial movement, relative to the tool receiving portion B, of the wedge portion 58 in a first direction so deforming the tool griping portion inwards toward the axis of the spindle for gripping a received tool.

Description

200808472 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a tool support shaft. These axes can be used to support different tools. An example is for drilling materials, such as for PCB drilling operations. BACKGROUND OF THE INVENTION In some applications, including PCB drilling, etc., it is desirable to be able to hold the tool firmly when the tool is rotated at a high speed of 10 revolutions. In some applications such as PCB drilling, the tool may rotate at 30 〇, 〇〇〇 rpm or higher. At the same time, it is desirable to be able, and for the most practical use, to be able to provide replacement of one of the tools supported by a tool support shaft such as a high speed drill shaft. It may be necessary to change the tool because the tool becomes worn or cracked or because different tool sizes are required. In some applications, such as high-speed PCB drilling, so-called "tool changes, operations must be performed relatively frequently. Therefore, it is desirable to provide a tool that not only securely supports a tool during high-speed rotation, but also facilitates tool support. The support tool is used to change the tool support axis. It is more desirable if the tool change operation is automatic and can be operated by an actuator located inside the shaft 20. [Explanation of contents j Summary of the invention One of the purposes of this book Provided is a tool support shaft that can convey some or all of the above-mentioned ideal features. 5 200808472 Person - According to the first aspect of the present invention, there is provided a tool support shaft that encloses a bearing body, wherein The at least one shaft is provided with the shaft member for rotating the shaft portion, the support member for supporting the dry object, and the axially movable actuator portion disposed in the shaft member for actuating the tool holder; The holder is wired within the shaft member and includes: a portion; and/or a receiving portion 'which has at least a -{deformation tool grip portion ίο 15 20 , a change 卩 77 ' configured to act on the deformable tool holding portion - set W is axially moved relative to the / receiving portion under the action of the axially movable actuator portion, and the axial movement of the actuator portion in the first / direction is caused by a direction The changing portion is axially coupled with respect to the receiving portion of the tool, so that the grip portion is deformed inward toward the axis of the shaft for holding the ramming receiving tool. The wedge Γΐ receiving portion can be supported against the shaft member _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The sleeve may comprise a variable elongate shape == the portion may comprise at least one arched deformable sleeve portion. The appeasement portion may comprise a deformable tool grip portion 8. The tool receiving portion may comprise a plurality of deformable cypresses = Supporting the object portion /, holding the file. The engineering system may include a plurality of chess-shaped deformable sleeve portions along the periphery of the periphery of the tool receiving portion 1 200808472. Each sleeve portion may include a deformable work Hold at least one of the parts. Hair, shape sleeve. p points can be matched In the ring, wherein the closing interval between the axes of the shaft provides - a cylindrical facing contact surface inwardly. V 5 豸 or sleeve portions can be connected to the tool support via the respective rods a main portion of the object portion. The or each tool grip portion may include at least one tool engagement edge. The <sets of the same portion may include - respective tool engagement edges. Preferably, each sleeve portion is Including a pair of tool grip portions. Preferably, each sleeve portion 1〇 includes a pair of tool engagement edges. The tool engagement edges may be located on opposite edges of the sleeve file. Where the plurality of sleeve portions are the same, the respective tool engagement edges of the adjacent sleeve portions may face each other with the respective gaps. The or each tool grip portion may be configured to move the tool grip portion The inner 15 curry creates a (four) movement with a joint edge. The guard support can include a complex __ wedge portion. The or each wedge portion may be pushed up along its axial length. The tool holder can include a wedge assembly including the or each wedge portion and a joint portion for engaging the actuator portion. The tool support body portion may include an annular wedge receiving portion. Tool Holder 20 The object portion can include a plurality of partial annular wedge receiving portions. The annular receiving portion or portions of the annular receiving portion may be pushed up along the axial length thereof. The push-out of the or each receiving portion can be complementary to the pushing or pulling of the wedges. This will help to ensure that the axial movement of the wedges in the respective receiving portions produces a radial deformation force over an extension 7 200808472 77 of the respective tool grip portion rather than at the - single point/circumference line. 5 10 15 20 = or each changeable portion can be configured to act on a plurality of grip portions. • The ΓΓΓ 部分 part is configurable in the support of the sleeve directly supported by the bearing = the object can be substantially fitted with the bearing directly supported by the support can be installed in the shaft member along the substantial The outer diameter of the full length of the crucible can be substantially constant throughout the pumping. The outer diameter of the bearing is straight H (four) is said to be (four) the diameter of the workpiece in the tank can be at least the main part of the diameter of the support can be smaller than the main part of the inner tool support of the bearing can be smaller than the shaft The inner diameter of the piece. The axially moveable actuator portion and the tool holder system can be configured to be rotatably facing. This allows the actuator portion to remain static when the shaft member and the tool holder are suspected to rotate within the shaft. The movable actuation of the n-portion can include the engagement of the heart with the head of the engagement portion. The eight-part portion can be configured to be removed by the head of the actuator portion. It is the easiest and most likely to pick up the way. !"And, this will produce a high degree of instability, swaying or high vibrations in which the protruding portion will be associated with the tool holder and the shaft, and the towel associated with it. The portion of the receiving portion 2 can be configured to receive the female core effect of the head of the actuator portion. The female receiving portion can be used to resist the separation of the internal part. 1 8 200808472 The female receiving portion can have a contact with The outer surface of the inner surface of the shaft member. The female receiving portion may include a receiving chamber in which the head of the actuator portion in use is disposed. The female receiving portion may include an inlet opening through which the head of the actuator portion 5 can be introduced into the chamber during assembly. The actuator portion can include a split-column screw that terminates in the head, the stud including a plurality of legs each terminating in a respective portion of the head and being expandable apart from each other to modify the effective outer diameter of the head. The actuator portion can include an expansion lock configured to extend the foot and axially moveable relative to the split stud to a first position in which the effective outer straight pinch of the head is less than the diameter of the inlet opening and one of The effective outer straight passage of the head is made between a second position greater than the diameter of the inlet opening. This allows the head to be introduced into the receiving chamber for assembly when the pin is in the first position and allows the head to be engaged with the chamber for actuation when the pin is in the second position. The actuator portion and the 15 wedge assembly can be configured to move at least one wedge portion in either an axial direction or both axial directions using contact between the head and the engagement portion. The actuation Is portion can include a shoulder for contacting the wedge assembly for at least a wedge portion to move in the - axial direction. This direction can be referred to as the first direction that will cause the tool grip to deform inwardly. In this example, the actuator portion and the wedge assembly can be configured to utilize the contact between the head and the engagement portion to move at least the wedge portion in the relative axial direction. There may be a pair of radial bearings, wherein the journal type is provided with a shaft member. The tool support may be substantially integrally disposed about the axis between the outermost ends of the pair of bearings; 9 200808472 A bearing or each bearing can be I gas bearing, ... The tool support shaft can be a machined shaft - two air bearing. A drill shaft, such as a high-speed PCB drill. The work/shaft can be a rotary paint shaft. The tool support shaft can be - a grinding object - the shaft can be a row of cloth shafts. The tool holder according to another aspect of the invention provides a shaft member, - at least - The shaft of the gas bearing "shaft, the inner part of the package bearing _ type of material phase relative to the material support of the support of the gas suspension support; money transfer, and - for 10 tool holders are installed in The shaft member includes a minute portion; the cooker has a "point" that has at least a deformable tool grip portion, and the gripping portion has a receiving portion for axially at least one wedge portion configured to act on and be configured In order to move relative to the worker 15 under the action of the actuator, 'the axial portion of the wedge portion relative to the tool receiving portion and in a uniform axial movement is the tool holding portion in a first direction;: deformation toward the shaft The axis is configured to hold the receiving tool. The actuator can include an axially movable actuator portion 2 disposed within the shaft member. The actuator can include an external actuator that can be separated from the shaft. The actuator can be operated from the front end of the shaft to the front end of the shaft or from the rear end of the shaft. According to another aspect of the present invention, there is provided a tool holder apparatus comprising: a tool holder shaft according to the step of the invention and a mechanism for acting on the wedge portion in the tool holder shaft External actuator. 200808472

Object-movable actuation of the n-portion; according to another aspect of the invention, the at least one gas-axis tooling technique is mounted within the shaft member and comprises:

The utility model has at least one 玎 deformation tool grip at least a wedge portion configured to act on the deformable tool grip portion and configured to move axially relative to the tool receiving portion under the action of the axially movable shaft portion The axial movement of the actuator portion in one of the first directions causes the axial movement of the wedge portion in the first direction relative to the tool receiving portion to cause the tool receiving portion to deform inwardly toward the axle line for Hold the receiving tool once. According to another aspect of the present invention, a tool holder for a shaft of the type described above is provided. "Monthly, it is understood that the optional features mentioned in the first aspect of the invention may also be optional features of other aspects of the invention when the context is 4th. BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the present invention will now be described, by way of example only, with reference to the drawings, in which: FIG. 1 is a schematic cross-sectional view of a tool holder axis; FIG. 2 is a tool holder shown in FIG. An end view of the primary assembly of the object axis; Fig. 3 is a section on the line m-πι of the secondary assembly shown in Fig. 2; 11 200808472 A tool holder for the tool holder Fig. 4 is the first picture The axis of the figure ~ the perspective view of the object part; Figure 5 is the end view of the work shown in Figure 4 and the ancient ^ ^ jin /, and the object is also attached; brother 6 is the work of the brother shown in Figure 5 Section • /, the line of the object-consuming part VI-VI on the support of a wedge assembly Figure 7 is the work diagram of the shaft shown in Figure 1;

Figure 8 is an end view of the wedge assembly shown in Figure 7; Figure 9 is a cross-section of the wedge assembly IX-IX shown in Figure 8; Figure 10 is the axis shown in Figure 1. - an end view of a separate bolt of the actuator portion; Fig. 11 is a section on the line χι_χι of the split stud shown in Fig. 10; Fig. 12 is a tool shown in Figs. 4 to 6. A 3 15-dimensional map of a portion of the support object portion; and a 13-dimensional view of the wedge assembly shown in Figures 7 through 9. [Delayed mode] Detailed description of the preferred embodiment of the vehicle 2〇 Fig. 1 shows a tool holder 1 which generally includes a shaft portion 2, and a pair of air bearings 3 are mounted in a shaft 邛2. A shaft member 4 is journaled to rotate along the axis of the shaft 1 within the air bearing 3. The shaft member 4 is hollow. A tool holder 5 is mounted in the shaft member 4 for supporting a tool (not shown). In the present embodiment, the 5 fulcrum shaft 1 is a drill shaft and the tool holder 5 is configured to support a drill cone. 12 200808472 The tool holder shaft 1 is configured to be rotatable to drive the shaft member 4 along the axis of the shaft 1 and thus to drive the tool holder 5 and a carrier tool. In this embodiment, the rotary drive is provided by a motor M including a stator M1, wherein the stator 1 is surrounded by the shaft member 4 and disposed on the two air bearings 3 and plated on the shaft member 4 • 5 surfaces The upper rotor is wound between M2. These AC motor drive configurations are well known to be useful in air bearing shafts and have no particular coherence in the context of the present invention. Therefore, a further description of the structure and operation of the motor turns will not be provided. • The shaft 4 is also a tool actuator portion 6 for actuating the tool holder 5 to allow for the holding and release of the carried tool. The outer diameter of the 10 members 4 is substantially the same in the integral shaft 1; a larger straight thrust flow passage (not shown) will typically be disposed at a point along the length of the shaft member 4. Still, it will be noted that the tool holder 5 has a smaller outer diameter than the inner diameter of the air bearing 3. In fact, most of the length of the jade support 5 fits within the shaft member 4. As in the present embodiment, if the shaft member 4 is made of steel, the tool holder 5 15 is an interference fit of one of the apertures of the member 4. Alternatively, if the shaft member 4_ is a composite or ceramic material, the tool holder 5 is one of the apertures of the shaft member that is slidably matched with a and supported by the adhesive. The only part of the tool holder in which the inner diameter of the shaft member 4 protrudes radially outward is a support flange 5F for connecting the tool holder 5 to the shaft member 4 via welding, adhesive and/or bolts. . The shaft 4 shaft 1 and the tool holder 5 are coaxially arranged. The tool holder 5 is disposed in the shaft member 4, and the shaft member 4 is located in the bearing. The axial position of the tool holder $ is coincident with the bearing 3 _ "Front bearing, 3 axial position. In this application, the structure of the actuator part 6 and the tool holder 5 is of particular interest. And operation. These 13 200808472 aspects of the shaft will now be described in detail with reference to Figures 2 to 1. Figures 2 and 3 show the sub-assembly of the tool support axis i. This assembly contains the tool support The object 5 and the actuator portion 6. In the completed shaft, as shown in Fig. 1, the assembly is mounted in the hollow shaft member 4. The tool holder 5 includes a 5-tool support object portion 51 and A wedge assembly 52.

Figures 4, 5, 6 and 12 show that the tool holder portion 51 is not in isolation. The tool support body portion 51 is generally cylindrical and has a central aperture 8 configured to receive a tool to be supported by the shaft. In this embodiment, the tool support body portion 51 has a single piece of material. Central aperture peeling _ Guard receiving part 1 〇 B, defined. The tool receiving portion B includes a plurality of arched deformable, tough, sleeve portions 53. In this embodiment, there are three such sleeve portions 53. As clearly shown in Figures 2 and 5, the arcuate sleeve portion is placed in the ring around the tool support member 51; the representative is disposed in a ring around the axis of the shaft and is indeed Located around the axis of the shaft member 4. As clearly shown in Figs. 2 and 5, each of the arcuate sleeve portions 53 is joined to the remaining portion of the object portion 51 by the respective rods 54. Each of the rod portions 54 is joined to each of the county tube portions to smoothly cover the center of the towel. Each of the chevable sleeves 2, 53 (4), is deformed and the portion of the sleeve-like portion 53 recorded on each side of the rod 54 is deformable away from the rest position shown in Figures 2 and 5. Two portions of each of the arched (four) portions 53 located on either side of the rod 54 can be used as the tool holding portion 55. Therefore, in the present embodiment, there is a six-piece grip portion 55 of the -% towel disposed in the middle 211. Wei Chun holds part 5 5 , 8 _ with -® week (four) post at each end from the adjacent guard grip part 55 is knife H each guard grip part 55 with a fine sleeve part 14 200808472 53 most One of the tools at the end of the inner surface engages the edge shirt. It will be seen that if the deformable tool grip portion 55 is deformed inwardly, the tool engagement edge of the tool grip portion 55 will extend into the central aperture B and thus contact and engage - if the tool handle is disposed within the aperture B . The tool support object portion 51 also includes a plurality of wedge receiving portions 56. In this embodiment, there are two wedge receiving portions 56. The mode receiving portion % is also a chess shape and can be described as a semi-ring. The wedge receiving portion % is disposed between the tool holding portion Η and an outer wall 57 of the tool holder body portion 51. The adjacent mold receiving portions 56 are separated from each other by the respective rods 54. As can be easily seen from Fig. 6, the die receiving portion 56 is pulled from one end of the tool supporting object portion 51 to the other end. That is, the radial interval between the facing surface of the tool holding portion 55 and the outer wall portion 57 is larger at the one end of the tool supporting object portion 51 than at the other end of the tool supporting object portion 51. . The radial spacing is minimized at the end of the portion of the object portion 15 that is closest to the opening of the aperture b that is introduced into the aperture B by a tool. Figures 7, 8, 9 and 13 show isolation. The wedge assembly 52. The wedge assembly 52 includes a plurality of push wedges 58. In this embodiment, there are three push wedges 58. The wedge assembly 52 is generally cylindrical, wherein the push wedges 58 are circumferentially separated from each other. And protruding from a joint portion 59. In the present embodiment, the wedge assembly 52 is made of a single piece of material 20. The inner surface of each of the push-pull wedges 58 extends axially and circumferentially so that the inner surface of the push-pull wedge 58 Together, they are located on the surface of a cylinder. In other respects, the outer surface of the push-pull wedge 58 is pushed inwardly from one axial end of the wedge 58 to the other. Therefore, the outer surface of the push-pull wedge 58 is located on a conical surface. The push-pull of the push-pull wedge 58 is such that the thickness of the cross-section of each of the wedges 58 in a radial direction is at a minimum at the end of the end of the hole B at the end of the 2008 20087272. The push-pull system and the tool for each push-pull wedge The pushing and receiving portions 56 of the supporting object portion 51 are complementary to each other. The push wedge 58 is configured to be connected. In the respective members of the wedge receiving portion 56 in the tool supporting object portion 51. In the second assembly shown in Figs. 2 and 3, and in Fig. 1, the push wedge 58 is inserted into the receiving portion 56. The engaging portion 59 of the wedge assembly 52 includes a receiving chamber 59a for receiving a head 61 of the actuator portion 6 and an inlet opening 48b for the head 61 to pass through the introduction chamber 59a. The inlet opening 59b At the inner end, chamber 59a is provided with an abutment surface 59 (:, 10 which in this embodiment is in the form of an annular projection against which the head 61 of the actuator portion abuts. Thus, the annular projection The frame 59a is disposed around the periphery of the inner end of the inlet opening 59b. However, it should be noted that the head 61 will be introduced through the inlet opening 59b during assembly. However, the ability of the introduction head 61 via the inlet opening during assembly can be tolerated. The head 61 that will abut against the abutment surface 59c during actuation is achieved by the structure of the actuator portion 6, which will be described in more detail below. The actuation portion 6 includes a separate jaw that terminates in the head 61. Bolt 62. A portion 63 of the split stud 62 is terminated by a shoulder 63a, and the shoulder 63a is also It is configured to act on the engagement portion 59 of the wedge assembly 52. 20 Figures 10 and 11 show the separate studs 62 in isolation. The split studs 62 include a plurality of legs 62a. In this embodiment, there are four legs. The legs 62a each terminate in a respective portion 61a of the head 61. The legs 62a are configured to be expandable relative to each other to change the effective outer diameter of the head 61. The legs 62a are also configured to be crushable relative to each other to minimize the head 61. Effective outer diameter. ' 16 200808472 Female Figure 3 shows an extension pin 64 with a push-out end 65 disposed within the knife-off stud 62. The inner surface of the foot 62a is in the face of each In some parts of the 6la, the push-pull shape is also pushed and pushed, and the push-pull is complementary to the push-out of the extension pin 65. If the lowering pin 64 is axially retracted to move the push-pull end 65 away from the head 61, the portion of the head 61a can be crushed together so that it is sufficiently inserted through the population opening. Once the head is set in the chamber and the crushing force 2 is removed, the head will acquire a - rest diameter. However, in order to ensure that there is a good abutment between the head 6ι and the guilty surface 59c during actuation, the push-pull pin W 64 is driven into an extended position, wherein the push-up shape (10) tends to expand the foot 62a and thus The outer diameter of the head 61 is increased. The "actuating portion 6 and the engaging portion 59 are configured to allow relative rotation therebetween. Tool holders including both the tool support body portion 51 and the wedge assembly 52 are in the form of a female garment within the shaft member 4 such that it rotates with the shaft member 4. However, the actuator portion may remain static. The actuator portion 6 can be driven by one of the components of the shaft W (guided from the rear) or by another of the shaft drive members provided by the shaft (10) to move in the axial direction. The engaging portion 59 is configured as a female receiving portion instead of a male protruding portion such as a bolt head. The engaging portion 59 has an example of a cylindrical outer surface which is contactable to the inner wall of the hollow shaft 4 by the first. This is for the joint portion 59. (4) The guard member 5 is rotated (10) when the shaft member 4 is rotated. This can be effectively used to mitigate instability such as sway and vibration that can occur in high speed applications. It should also be noted that the tool holder 5 is supported by the shaft member 4 along its entire or substantially its entire length. This can also help prevent instability at high speeds. 17 200808472 In operation, the amount of grip applied to a tool shank disposed in the central aperture B is determined by the axial position of the pusher die 58 in the receiving portion 45. Therefore, a tool is inserted into the central aperture closed, wherein the push (4) '彳 ― 第 第 第 使 使 第 第 第 第 第 第 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 in. In this state, the central hole B and the tool receiving portion B have their maximum inner diameter. Once a tool shank (10) enters the receiving hole #_, the wedge assembly 52 can move relative to the jade support object portion si. The wedge 58 is further driven into the receiving portion 56. The result of this movement of the wedge 58 into the receiving portion 56 is the inward deformation of the tool grip portion % toward the shaft (10) H) axis into the central aperture B. This results in the grip of the tool shank by a reduction in the overall effective diameter of the central aperture β. Still, the tool engagement edge 55a of the tool grip portion 55 will tend to bite into the tool shank. In operation "the push wedge 58 is driven by contact with the end of the engagement portion 59 of the wedge assembly 52 and the wedge assembly 52_ faces the shoulder 63a of the actuator portion 156 of the tool support body portion 51. To the receiving portion 56. φ When it is desired to release the gripping tool, the actuator portion 6 is moved in the opposite direction so that the shoulder 63a does not contact the engaging portion 59, but the head 61 of the actuator portion is brought into contact with the inner surface of the inlet opening 59. Set against the surface. As described above, the head portion 61a is expanded and separated by using the development pin 64 to achieve a good abutment between the head 61 2 〇 and the guilty surface 5%. That is, the expansion pin 64 is moved in the axial direction toward the beginning of the central aperture B to expand the portion 61a of the head 61 and then the actuator portion 6 as a whole can be moved in a direction away from the beginning of the central aperture B. This causes the head 61 to contact the abutment surface 59c in the engaging portion 59 and thus pull the wedge assembly 52 away from the tool holder portion 51. With the 18 200808472 wedge assembly 52 being pulled away from the tool holder body portion 51, the push wedge 58 is axially moved within the receiving portion 56 such that the radial force on the tool grip portion 55 is removed and The tool grip portion 55 can be relaxed to its original state. Of course, when this occurs, the central aperture B returns to its original diameter and releases the grip on the tool shank 5. The tool support body portion 51 and the wedge assembly will generally be made of steel. In the present embodiment, the shaft member 4 is made of steel. However, in other embodiments, the shaft member 4 can be a ceramic material or a composite material - in this case, it would be most likely to use a different type of motor that is dc type. Alternatively, the head 61 can act on the change assembly 52 to cause it to move in both axial directions. The tool support object portion 51 can be made of electrical discharge machining (EDM) of a single piece of material to provide the desired shape. In particular, the sleeve portion 8 and thus the grip portion 55 can be made by electrical discharge machining. The grip portion ^ and the receiving aperture B surface can be machined in a single-process that may be an EDM process.

20 The grip portion 55 is shaped and dimensioned to minimize weight. The grip portion 55 is shaped and dimensioned to minimize its radius. It is configured as close as possible to the axis of the fixture support. Its system is radial (four). It has a minimum outer radius and an inner radius. Each grip portion 55 is long along its axial direction = has a substantially constant (four) radial thickness. Each of the grip portions 55 has a substantial thickness in the material circle. After the armor-holding portion is perpendicular to the tool holder (10), the horizontal-to-hold portion Η length changes. That is, the cross-section along the length of the swivel portion 55/guard support 51 is the same as the cross-section taken at any other point along the grip purity 19 200808472. With the tool holder shaft portion 51«, the combined mass of the grip portion buckle portion 55 can be less than 5°% of the tool: T:: amount. The combined quality of the grip portion 55 may be, for example, 10% of the mass of the supporting object portion 51. ^Integration of the isolation integration _ can provide good performance of high speed τ and can help to minimize the centrifugal effect.

In the present embodiment, the above-described characteristic structure of the grip portion & is also applicable to the portion 53. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of a tool support shaft; Fig. 2 is an end view of the primary assembly of the tool support shaft shown in Fig. 1, and Fig. 3 is the second The cross section of the subassembly line ηηπ shown in the figure; Fig. 4 is a perspective view of the object portion of a tool holder 15 of one of the tool holders of the shaft shown in Fig. 1;

Fig. 5 is an end view of the tool support object portion shown in Fig. 4; Fig. 6 is a cross section taken along the line νΐ-VI of the tool support object portion shown in Fig. 5; Fig. 7 is a first view A perspective view of a wedge assembly of the tool holder of the shaft shown; Figure 8 is an end view of the wedge assembly shown in Figure 7; and Figure 9 is a wedge assembly shown in Figure 8. The cross section of the ΙΧ-ΙΧ; Fig. 10 is an end view of a separate rivet bolt of the actuator portion of the shaft shown in Fig. 1; 20 200808472 Fig. 11 is the split column shown in Fig. 10. Section of the bolt line XI-XI; Figure 12 is a 3D view of the part of the tool support object shown in Figures 4 to 6; Figure 13 is the wedge assembly shown in Figures 7 to 9. 3D map. [Main component symbol description]

1 , 5...tool support 59a...receiving chamber 2...shaft body 59c...butting surface 3...air bearing 59d...cylindrical outer surface 4···shaft member 61··· Head 5F...end support flange 61a...part of head 61 6.tool actuator part 62...separate studs 48b,59b...inlet opening 62a···foot 51...tool support The object portion 63...the outer portion 52...the wedge assembly 63a·"the shoulder 53...the arch shape deformable, the toughness, the sleeve 64. ·the expansion pin portion 65...the push-out end 54··. rod B ··· central aperture, receiving aperture 55a...working edge B,·&&;tool receiving part 55...tool grip part G...circumference gap 56...module receiving part M...motor 57...outer wall Ml.. Stator 58···Pushing wedge M2...Rotor winding 59···Joining portion 21

Claims (1)

200808472 X. Patent application scope: 1. A tool support shaft, comprising a shaft member, a shaft body portion including at least one bearing, wherein the at least one bearing is provided with a shaft member, Rotating at the shaft portion, a tool holder 5 for supporting a tool, and an axially movable actuator portion disposed in the shaft member to actuate the tool holder; a carrier is mounted in the shaft and includes: a tool receiving portion having at least one deformable tool grip portion; and 10 at least one wedge portion configured to act on the deformable tool grip portion and Configuring to axially move relative to the tool receiving portion by the axially movable actuator portion, wherein axial movement of the actuator portion in a first direction results in a first The axial movement of the wedge portion in the direction relative to the tool receiving portion 15 causes the tool grip portion to deform inwardly toward the Φ axis of the shaft for holding a receiving tool. 2. The tool holder shaft of claim 1, wherein a cross section of the tool grip portion taken perpendicular to an axis of the tool holder is along an axial length of the grip portion The presentation is unchanged. 20 3. The tool holder shaft of claim 2, wherein the tool receiving portion is supported against axial movement relative to the shaft member. 4. The tool holder shaft of claim 2 or 3, wherein the wedge portion is configured to move axially relative to the shaft member. 5. The tool holder shaft of any one of claims 1 to 4, wherein the tool holder can include a tool holder body portion in 2008 200808472. 6. The tool holder shaft of claim 5, wherein the tool support body portion comprises at least one arched deformable sleeve portion. 7. The tool holder shaft of claim 6, wherein the arcuate sleeve portion comprises the deformable tool grip portion. 8. The tool holder shaft of any of the preceding claims, wherein the tool receiving portion comprises a plurality of deformable tool grip portions. 9. If the tool holder shaft of claim 8 is applied, any one of items 5 to 7 of the patent application scope is attached, wherein the tool support object unit 10 includes an inner periphery along the receiving portion of the tool. A plurality of arched deformable sleeve portions spaced apart from each other. 10. The tool holder shaft of claim 9, wherein each sleeve portion comprises at least one of the deformable tool grip portions. 11. The tool holder shaft of claim 9 or 10, wherein the 15 arcuate sleeve portions are disposed in a ring, wherein a circumferential spacing therebetween along an axis of the shaft provides an inward view A cylindrical tool contacts the surface. 12. A tool holder shaft according to any one of clauses 7 to 11 of the scope of claim 6 or the attachment of the sleeve 20, wherein the sleeve 20 is partially connected via a separate rod Connected to a main part of the tool support object. 13. The tool holder shaft of any of the preceding claims, wherein the or each tool grip portion comprises at least one tool engagement edge. 14. If the tool support axis of the 13th patent application area is attached, when the application is for the second item of 200808472, or when the application is for the ninth item, the 12th part of the patent scope is required. In the case, each of the sleeve portion spoons includes a pair of tool holding portions.匕 . 15 . The tool holder shaft of claim 14 wherein each sleeve portion .5 (4) comprises a pair of 2 joint edges on opposite edges of the sleeve portion. 〃 16. If the scope of claim Scope is 13 or when (4) the scope of the tool is called “15”, the tool holder axis is configured to hold the tool. Partial inward deformation causes the work and the inward movement of the 10 joint edges. A draper shaft for a fascia as claimed in the aforementioned patent application, wherein the tool holder comprises a plurality of wedge portions. 18. The tool holder shaft of any of the preceding claims, wherein the tool holder comprises a wedge assembly comprising the or each wedge portion and - 15 for engaging the actuator portion section. _ 19. The tool holder shaft of any one of claims 6 to 18, wherein the object of the tool support comprises at least - An annular wedge receiving portion, the at least one annular receiving portion being pushed up along its axial length and the at least 2 〇-mould portion being pushed up along its axial length, the at least-receiving portion of the push-pull system Complementing the pushing of the at least-wedge. The tool holder shaft of any one of the preceding claims, wherein the at least one wedge portion is configured to act on a plurality of guard grip portions. 21. The tool holder shaft of any of the preceding claims, wherein the receiving portion is disposed within an axial extent of the shaft member directly supported by the bearing. 22. A tool holder shaft according to any of the preceding claims, wherein the tool holder is substantially disposed within an axial extent of the shaft member directly supported by the bearing. 23. A tool holder shaft according to any of the preceding claims, wherein the tool holder is supported along substantially the entire length thereof by being mounted within the shaft member. A tool holder shaft according to any of the preceding claims, wherein the outer diameter of the shaft member is substantially constant throughout the shaft. The tool holder shaft of any of the preceding claims, wherein the outer diameter of the shaft member in the region of the bearing is substantially the same as the outer diameter of the shaft member in the region of the tool holder . 26. The tool holder shaft of any of the preceding claims, wherein at least a major portion of the workpiece has an outer diameter that is less than an inner diameter of the bearing. 27. The tool holder shaft of any of the preceding claims, wherein the outer diameter of the main portion of the tool holder is less than the inner diameter of the shaft member. The tool holder shaft of any of the preceding claims, wherein the axially movable actuator portion and the tool holder are configured to permit relative rotation therebetween. 29. A tool holder shaft according to any one of claims 19 to 28, wherein the movable actuator portion comprises a Used to join the head of the joint portion. 25 200808472 10 15 = become - (four) Wei Cheng's head of the mother receives 31. If the patent scope of the 3G item of the support axis, :, by the - the inner wall of the shaft is supported against the application The first core has a core (four) and the mother 33 has an outer surface that is in contact with the inner surface of the member. , Shen: Patent scope 3rd. In the tool support shaft ' of any of the 32 items, the female subtraction portion contains purely - the head of the actuator portion in the pure chamber, and the "population opening", the head of the actuator portion 34. The tool support shaft of any one of claims 29 to 33, wherein the button portion of the button is contained in the middle of the assembly, and the separated stud is terminated in Langzhong. The stud includes a plurality of legs, each of which terminates in a respective one of the heads. The rasp can be expanded and separated from each other to change the effective outer diameter of the head. 35. Recording, affixing application 20, the range of the 33rd, wherein the actuating n portion includes an expansion lock configured to expand the legs and axially moveable relative to the split stud to one of the heads The effective outer diameter is less than the first position of the diameter of the inlet opening and a second position in which the effective outer diameter of the head is greater than the diameter of the inlet opening. 36. as claimed in claim 29 or when Tool support attached to any of items 30 to 35 when applying for the scope of patent application No. 29 An object shaft, wherein the actuator portion and the wedge assembly are configured to move the at least one wedge portion in an axial direction or in both axial directions by contact of the head 2008 and the joint portion between 26 200808472. The tool holder shaft of claim 36, wherein the actuator portion includes a shoulder for contacting the wedge assembly for movement of the at least one wedge portion in an axial direction. 38. A tool holder shaft according to any of the preceding claims, wherein there is a pair of radial bearings, wherein the journal type is provided with a shaft member, the tool holder being substantially integrally disposed on the most of the pair of bearings The tool holder shaft of any one of the preceding claims, wherein the bearing or each bearing is a gas bearing, typically an air bearing. a tool support shaft comprising a shaft member, a shaft body portion including at least one gas bearing, wherein the gas bearing is journaled to rotate the shaft member relative to the shaft portion, and Tool support for supporting a tool The tool holder is mounted in the shaft member and includes: a tool receiving portion having at least one deformable tool grip portion; and at least one wedge portion configured to act on the deformable tool grip The portion 20 is configured to move axially relative to the tool receiving portion under the action of the actuator, wherein the axial movement of the wedge portion relative to the tool receiving portion and under the action of the actuator is first The tool grip portion is deformed inwardly toward the axis of the shaft to hold the receiving tool. 27 200808472 41. The tool support shaft of claim 40, wherein the actuator comprises a configuration The axially movable actuator portion of the shaft member. 42. The tool holder shaft of claim 40, wherein the actuator comprises an external actuator separate from the shaft. 5: The tool holder shaft of claim 42, wherein the external actuator operates on the wedge portion from a front tool receiving end of the shaft, and a rear end of the shaft end. 44. A tool holder device comprising a tool holder shaft according to any one of claims 40, 42 and 43 and a mechanism for acting on the workpiece axis of the work An external actuator on the wedge portion. 45. A drill shaft comprising a shaft member, a shaft portion including at least one gas bearing, wherein the at least one gas bearing is journaled to rotate the shaft member relative to the shaft portion a tool holder for supporting a tool, and an axially movable actuator portion disposed in the shaft member to actuate the tool holder; the tool holder is mounted to the shaft member And including: a tool receiving portion having at least one deformable tool grip portion; and at least one wedge portion configured to act on the deformable tool grip 20 portion and configured to be movable in the axial direction The actuator portion is axially moved relative to the tool receiving portion, wherein the axial movement of the actuator portion in a first direction causes the wedge portion in a first direction to be received relative to the tool Part of the axial movement causes the tool receiving portion to deform inwardly toward the shaft. 28 200808472 The axis is used to hold a receiving tool. 46. A tool holder for use in an axis according to any one of the preceding claims. 29