Machining apparatus, and indexing apparatus for workpiece of machining apparatus

Abstract

A machining apparatus of the present disclosure may comprise: a rotating chuck; at least two jaws moving in the radial direction of the chuck so as to clamp a workpiece; and a tool for machining the workpiece while moving away from or closer to the chuck.

Description

Processing device, and indexing device for workpiece of processing device

[0001] The present invention relates to a processing device. The present invention relates to an indexing device for a workpiece of the processing device.

[0002] Pipes use pipes and pipe fittings that are connected to the pipes. The pipe fittings may have various shapes, such as multiple elbows, T-shapes, Y-shapes, and cross-shapes, depending on their shape. The ends of the pipe fittings may have a predetermined shape and form for connection to the pipe.

[0003] A processing device can process an end portion of a pipe component into a desired shape. The pipe component is mounted on the processing device. The processing device can first process a first end portion of the pipe component. At this time, a chuck can rotate and a tool can process the pipe component. The tool can face the first end portion. After the processing of the first end portion of the pipe component is completed, the processing device removes the pipe component, changes its direction, and then remounts it. The processing device can then operate again. At this time, a second end portion of the pipe component can face the tool.

[0004] In this way, the worker must repeat the process of installing and removing the pipe parts. To alleviate the inconvenience of this task, an indexing device exists. The indexing device may be a device that automates the process of manually installing and removing the pipe parts by the worker. A representative example of the indexing device is the indexing chuck of Forkardt, which is introduced at the website address www.forkardt.com. Specifically, the indexing chuck at "https: / / www.forkardt.com / product / chucks / hsr-automatic-indexing-chuck" and the description of the indexing chuck can be referred to the video at the YouTube address "https: / / www.youtube.com / watch?v=CtCoijL8yJI".

[0005] The above indexing chuck can automatically rotate a pipe component and index it at a predetermined angle. The indexing chuck allows the jaw to rotate. The jaw can be a member that moves radially to grasp the pipe component. Therefore, there is a problem in that a separate hydraulic pressure must be supplied to the jaw connected to the chuck for the above indexing. This has the disadvantage of significantly increasing the weight of the chuck due to the hydraulic pressure supplied to the jaw. There is also the problem of hydraulic oil leakage. There is also the disadvantage of high price.

[0006] The present disclosure proposes an indexing device for a workpiece of a machining device and a machining device thereof, which performs an indexing action with a radial motion of a jaw.

[0007] The present disclosure proposes an indexing device and a machining device for a workpiece of a machining device that does not require a separate supply of hydraulic oil.

[0008] The present disclosure proposes an indexing device and a processing device for a workpiece of a processing device having light weight and small volume.

[0009] The present disclosure proposes an indexing device and a processing device for a workpiece of a processing device capable of indexing at various angles.

[0010] The present disclosure proposes an indexing device for a workpiece of a user-operable processing device and a processing device thereof.

[0011] The machining apparatus of the present disclosure may include a rotating chuck; at least two jaws capable of moving radially of the chuck to hold a workpiece; and a tool for machining the workpiece away from or adjacent to the chuck.

[0012] Optionally, the second group of at least two groups may include a second shaft capable of holding the workpiece in conjunction with a radial stroke movement of the chuck toward and away from the chuck. Optionally, the second group may include a second spring for pushing the shaft in the direction of the workpiece. Optionally, the second group may include at least one rotating medium capable of rotating the shaft by a predetermined angle in conjunction with a radial stroke movement of the chuck toward and away from the chuck.

[0013] Optionally, the first of the at least two sets may include a first shaft for holding the workpiece during a stroke motion in the radial direction of the chuck, and a first spring for pushing the shaft in the direction of the workpiece.

[0014] Optionally, the first shaft may include a first shaft having a second shaft hole supporting the first shaft; at least two first fixing recesses spaced apart in the circumferential direction of the first shaft; and a first fixing switch supported by the first shaft and selectively engaging at least one of the at least two first fixing recesses to fix the second shaft.

[0015] Optionally, the first shaft may include a first shaft having a first shaft hole supporting the first shaft; a third fixing recess provided in the shaft; and a third fixing switch provided in the shaft.

[0016] Optionally, when the processing of the workpiece is completed, the third fixed recess and the third fixed switch may be engaged, so that the first axis and the first shaft may be fixed.

[0017] Optionally, the first shaft may include a first shaft having a first shaft hole for supporting the first shaft; and a first fixing projection positioned at the tip of the first shaft for holding the workpiece.

[0018] Optionally, when the first member transitions from a clamping state to an unclamping state, the first fixing projection can hold the workpiece.

[0019] Optionally, the at least two groups may be two groups.

[0020] Optionally, the at least one rotating medium may include a first rotating medium that rotates a predetermined angle in accordance with a single stroke in which the first group moves away from and toward the radial direction of the chuck; and a second rotating medium that guides the rotation of the first rotating medium without rotating in accordance with the single stroke.

[0021] Optionally, the first rotating medium may include a side slope provided on a side surface thereof; and at least one squeegee providing an elastic force to push the side slope.

[0022] Optionally, the shaft may include an axle having an axle hole for supporting the second shaft; and a fixing projection placed at the tip of the second shaft for holding the workpiece.

[0023] Optionally, when the above-mentioned jaw transitions from a clamped state to an unclamped state, the fixing projection can hold the workpiece.

[0024] Optionally, at least two fixed recesses spaced apart in the circumferential direction of the second shaft; and a second fixed switch supported on the axle and selectively engaging at least one of the at least two recesses to fix the second shaft.

[0025] The indexing device of the present disclosure comprises at least two jaws provided on a chuck and moving in a radial direction of the chuck, and the at least two jaws can rotate a workpiece while holding it in place in conjunction with the radial movement of the jaws.

[0026] Optionally, one of the at least two groups may include: a shaft; an axle supporting the shaft; a spring provided between the shaft and the axle for pushing the shaft inward in the radial direction; and a fixing member provided on the shaft for fixing the workpiece.

[0027] Optionally, another one of the at least two groups may index the workpiece.

[0028] Optionally, the shaft may include at least two fixed recesses spaced circumferentially apart from each other; and a fixed switch provided on the axle so as to be selectively inserted into the at least two fixed recesses to fix the axle and the shaft.

[0029] Optionally, a single fixing recess provided in the shaft; and a fixing switch provided in the axle so as to be selectively inserted into at least two of the fixing recesses to fix the axle and the shaft.

[0030] Another one of the at least two groups may include a first rotating medium that rotates a predetermined angle in accordance with a single stroke that moves the other group away from and toward the radial direction of the chuck; and a second rotating medium that guides the rotation of the first rotating medium without rotating in accordance with the single stroke.

[0031] Optionally, another one of the at least two sets may include: another shaft; another axle supporting the other shaft; another spring provided between the other shaft and the other axle for pushing the other shaft radially inward; and another fixing member provided at an end of the other shaft for fixing the workpiece.

[0032] Optionally, the first rotating medium may move together with the other shaft, and the second rotating medium may be fixed to the other axle.

[0033] Optionally, the first rotating medium and the second rotating medium may have an incline on the contacting surface.

[0034] Optionally, a milling machine for rotating the first rotating medium may be fixed to the shaft.

[0035] Optionally, at least two other fixing recesses spaced circumferentially apart from said other shaft; and another fixing switch provided on said other axle so as to be selectively inserted into said at least two other fixing recesses to fix said other axle and said other shaft.

[0036] At least one of two sets of an indexing device of the present disclosure may include: a shaft; an axle supporting the shaft; a spring provided between the shaft and the axle to push the shaft inward in the radial direction; a mounting frame provided on the shaft to secure the workpiece; a second rotating medium fixed to the axle; and a first rotating medium that rotates together with the shaft, and when the axle moves in the radial direction, the first and second rotating media move relative to each other.

[0037] Optionally, another one of the at least two groups may secure the workpiece.

[0038] Optionally, the shaft may include a push rod that rotates the side surface of the first rotating medium when the shaft moves outward in the radial direction; and an inclined portion that rotates the bottom surface of the first rotating medium when the shaft moves inward in the radial direction.

[0039] According to the present disclosure, the radial motion of the joint and the indexing action at a predetermined angle are linked. Accordingly, the indexing action can be simplified.

[0040] According to the present disclosure, when machining a part with a complex shape, multiple positions of the workpiece can be machined using the clamping and unclamping motion of the chuck. This provides the advantage of eliminating the need for a separate part for indexing.

[0041] According to the present disclosure, sufficient indexing action is achieved through the radial motion of the jaws performed on the chuck. Accordingly, there is no need for supply of hydraulic oil.

[0042] According to the present disclosure, a lightweight and compact indexing device can be implemented. Consequently, it has the advantages of requiring less power for operation, preventing deformation due to its own weight, and enabling precise control.

[0043] According to the present disclosure, with only minor component improvements, indexing at various angles is possible. Consequently, it offers the advantage of conveniently machining multiple surfaces of various components.

[0044] According to the present disclosure, a user can intervene during operation to manipulate the processing device in various ways. This provides the advantage of enabling a variety of additional selective processing options.

[0045] Fig. 1 is a perspective view of a processing device according to an embodiment.

[0046] Figures 2 to 4 are drawings sequentially showing the operation of a processing device according to an embodiment.

[0047] Figures 5 and 6 are exploded views of a portion of Article 1. Figure 5 is an exploded view of an adjacent portion of the alignment stand, and Figure 6 is an exploded view of an adjacent portion of the first fixing frame.

[0048] As a shaft drawing of Fig. 7, Fig. 7(a) is a top perspective view, Fig. 7(b) is a front view, and Fig. 7(c) is a bottom perspective view.

[0049] Figure 8 is a drawing of the first fixing frame, where Figure 8(a) is a top perspective view, Figure 8(b) is a cross-sectional view, and Figure 8(c) is a bottom perspective view.

[0050] Fig. 9 is a drawing explaining the operation of the first fixed switch. Fig. 9(a) shows a state in which the first fixed switch is not operating, and Fig. 9(b) shows a state in which the first fixed switch is operating.

[0051] Fig. 10 is a drawing explaining the operation of the third fixed switch. Fig. 10(a) shows the state in which the third fixed switch is not operating, and Fig. 10(b) shows the state in which the third fixed switch is operating.

[0052] Figures 11 and 12 are exploded drawings of a part of Article 2, where Figure 11 is an exploded drawing of an adjacent part of the alignment stand, and Figure 12 is an exploded drawing of an adjacent part of the second fixing frame.

[0053] Fig. 13 illustrates a second mounting frame, wherein Fig. 13(a) is a top perspective view, Fig. 13(b) is a front view, and Fig. 13(c) is a bottom perspective view.

[0054] Fig. 14 is a drawing showing a housing, where Fig. 14(a) is a bottom cross-sectional view of the housing, and Fig. 14(b) is a cross-sectional view of 14b-14b of Fig. 14(a).

[0055] Fig. 15 is a drawing sequentially explaining the stroke of the first rotating medium, Fig. 15(a) is a state in which the jaw transitions from a clamping state to an unclamping state, and Fig. 15(b) is a plan view showing the action of the first rotating medium and the push rod.

[0056] Fig. 16 is a drawing showing the operation of the second fixed switch and the second fixed recess, where Fig. 16(a) shows a state in which the second fixed switch is operating, and Fig. 16(b) shows a state in which the second fixed switch is not operating.

[0057] Fig. 17 is a drawing showing the action of the squeegee and the side slope, where Fig. 17(a) is a drawing showing the squeegee in action, and Fig. 17(b) is a drawing showing the squeegee in action.

[0058] Hereinafter, specific embodiments of the present disclosure will be described in detail with reference to the drawings. However, the spirit of the present disclosure is not limited to the following embodiments, and those skilled in the art who understand the spirit of the present disclosure will be able to easily propose other embodiments within the scope of the same spirit by adding, modifying, deleting, or adding components, and such may also be included within the scope of the present disclosure.

[0059] In the description of the drawings, identical or similar components are given identical or similar reference numbers regardless of the drawing symbols, and redundant descriptions thereof may be omitted.

[0060] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[0061] In describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description is omitted.

[0062] The attached drawings are only intended to facilitate understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present disclosure.

[0063] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0064] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0065] A singular expression may include a plural expression unless the context clearly indicates otherwise.

[0066] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0067] This disclosure exemplifies a piping component. The processing device and the indexing device for the processing device, which are the subject of this disclosure, can process any workpiece having various processing positions. The drawing illustrates a cross pipe as an example.

[0068] Fig. 1 is a perspective view of a processing device according to an embodiment.

[0069] Referring to Fig. 1, the machining device includes a rotating chuck (A). The chuck can be axially rotated by a driving source (B). Here, the driving source (B) can include a motor or a pump. When the chuck rotates, the workpiece can be rotated.

[0070] At least two jaws (E)(F) can be connected to the chuck (A). The jaws (E)(F) can move relative to the chuck. The jaws (E)(F) can move radially relative to the chuck. Herein, the radial direction and the circumferential direction may be defined with respect to the center of rotation of the chuck. The same may apply hereinafter. The jaws (E)(F) can move relative to the center of rotation of the chuck. At least two jaws can be provided. When the jaws move adjacent to each other, the workpiece can be held. When the jaws move away from each other, the workpiece can be inserted or removed. A driving source (C)(D) can be provided to move at least one of the jaws. Herein, the driving source can include a motor or a pump. The motor can further include a conversion device that converts a rotational motion into a linear motion. The pump can use a hydraulic means.

[0071] At least one of the above-described groups (E)(F) may include an alignment stage (1). The alignment stage (1) may secure the group (E)(F) to the chuck (A). The group may be connected to a driving source (C)(D). It is preferable that the alignment stage (1) moves along a predetermined path relative to the chuck (A). The path may have a high degree of precision. A slight misalignment of the alignment stage may cause a problem of lowering the precision of the workpiece.

[0072] A predetermined shaft (see 4 in Fig. 6) (see 96 in Fig. 12) can move with respect to the alignment table (1). The shaft can move relative to the alignment table. A spindle (6) can support the shaft. The spindle can support the relative movement of the shaft. A first fixing frame (5) can be placed at an end of the shaft. The shaft and the first fixing frame can move together. The first fixing frame (5) can hold the workpiece. The shape of the first fixing frame (5) can have a portion similar to the outer shape of the workpiece. During rotation and processing of the workpiece, the first fixing frame (5) can firmly hold the workpiece.

[0073] The above two or more groups (E)(F) can perform similar movements. Similar components in the above two or more groups are indicated and described with similar drawing numbers. For example, the alignment stand of Group 1 (E) can be indicated with drawing number 1, and the alignment stand of Group 2 (F) can be indicated with drawing number 1a. If the description of a component included in one group applies to the description of a component included in another group, the description may be omitted.

[0074] The two or more jaws (E)(F) above can perform different functions. For example, one of the two or more jaws (E)(F) above can be referred to as a first jaw (E), and the other one (F) of the two or more jaws (E)(F) can be referred to as a second jaw. For example, at least one of the two or more jaws (E)(F) above can be referred to as a guiding jaw that guides the workpiece, and at least one of the two or more jaws (E)(F) above can be referred to as a rotating jaw that rotates the workpiece. The rotating jaw can perform the guiding action together with the rotating action. The rotating jaw can rotate (index) the workpiece. The rotating jaw can be referred to as an indexing device. The two or more jaws including the rotating jaw and the guiding jaw can hold the workpiece and rotate (index). The above two or more groups may be referred to as an indexing device. The above two or more groups and the driving source that moves the groups may continuously hold and rotate (index) the workpiece. The above two or more groups and the driving source that moves the groups may be referred to as an indexing device.

[0075] Figures 2 to 4 are drawings explaining the operation of a processing device according to an embodiment. Arrows indicate the movement of each member.

[0076] Referring to Fig. 2, the workpiece (G) can be mounted while the two or more groups are spaced apart. The tool (H) for processing the workpiece can be on standby.

[0077] Referring to Fig. 3, the two or more groups can be adjacent to each other to hold the workpiece. The tool (H) can approach the workpiece (G) and process the workpiece.

[0078] Referring to Fig. 4, first, after machining of one side of the workpiece is completed, the tool (H) can be retracted. Second, the two or more jaws can be moved away from each other. Even if the two or more jaws are moved away, the mounting frame (5)(7) can hold the workpiece. In addition to the two or more jaws being moved away, the mounting frame (5)(7) can be rotated by a predetermined angle. Third, in addition to the two or more jaws being brought into close proximity again, the mounting frame (5)(7) can be rotated by a predetermined angle. The workpiece can be rotated together with the mounting frame.

[0079] In the first to third steps described above, the fixing frame can rotate until the other side of the workpiece faces the tool (H). Thereafter, the tool (H) can process the other side of the workpiece. After processing the other side of the workpiece is completed, the first step can be performed again.

[0080] The machining of the workpiece can be repeated until all machining of the workpiece is completed. When the machining of the workpiece is completed, the workpiece can be taken out. The processes of introducing, machining, and taking out the workpiece can be performed according to the movement of the group. The linear movement of the group can cause the rotational movement of the workpiece. The radial movement of the group can cause the rotation and guidance of the workpiece. A separate driving source for indexing the workpiece is not required. The driving source (C)(D) of the group can be the driving source of the indexing device of the workpiece. The driving source of the group can cause the group to move linearly.

[0081] The operation and configuration of the above processing device are described in more detail below.

[0082] Figures 5 and 6 are exploded views of a portion of the first clause, where Figure 5 is an exploded view of an adjacent portion of the alignment stand, and Figure 6 is an exploded view of an adjacent portion of the first fixing frame.

[0083] Referring to FIGS. 5 and 6, the chuck may be provided with a groove (11). The groove may extend radially. The cross-section of the groove may be large on the inside and small on the outside. The groove (11) may guide a fixed piece (12). The fixed piece (12) may have a shape extending a predetermined length in the radial direction of the chuck. Since the fixed piece has a predetermined length, distortion during movement of the fixed piece may be reduced. At least a portion of the cross-section of the fixed piece may have the same cross-section as at least a portion of the groove. The fixed piece (12) may include a large portion (13) and a small portion (14). The interior of the groove may guide the large portion (13).

[0084] The small part (14) of the above-mentioned fixed piece can be fastened to the above-mentioned alignment stand (1). At least one fastening member (19) can fasten the alignment stand (1) to the small part (14). At least two of the fastening members can be spaced apart from each other in the extension direction of the above-mentioned fixed piece. The above-mentioned alignment stand and the above-mentioned fixed piece can not swing in different directions. According to this configuration, the alignment stand and the fixed piece can be firmly fixed to each other.

[0085] The alignment stand (1) may have a radial extension portion (16) extending in the radial direction. The radial extension portion may be fastened to the fixing piece. The alignment stand may have a circumferential extension portion (15) extending in a circumferential direction. The circumferential direction may intersect the radial direction. The inner surface of the circumferential extension portion (15) may have a first round (17) having a round shape. The first round may be convex outward. The first round may have a shape corresponding to the second round (21) of the cover (2). At least a portion of the first and second rounds (17) (21) may have shapes corresponding to each other. The cover (2) may be positioned at an accurate position on the alignment stand (1). The cover may have little fluctuation with respect to the alignment stand.

[0086] The alignment stand (1) and the cover (2) can be fastened to each other by at least one alignment hole (18). At least two alignment holes (18) can be spaced apart from each other. The alignment stand and the cover can be prevented from swinging due to the alignment holes. Four alignment holes can be provided.

[0087] The cover (2) above can support an end of the shaft of the first article (E). The cover can accommodate at least a portion of the shaft of the first article. The housing (3) can accommodate a body of the shaft of the first article (E). The housing (3) and the cover (2) can provide at least a portion of the shaft (6). The shaft can guide a member that operates together with the shaft. The shaft of the first article can be referred to as a guiding shaft since it performs the function of guiding a workpiece.

[0088] The housing (3) may have an axial hole (31) for guiding the shaft (4). The housing (3) may have a hole (34) for fastening with the cover (2). At least one alignment hole (22) may fasten the cover and the housing. At least two alignment holes (22) may be provided. Four alignment holes (22) may be provided. Accordingly, the shaking of the cover and the housing may be reduced. The housing of the first article may be referred to as a guiding housing since it performs the function of guiding a workpiece.

[0089] The configuration related to the above shaft (4) is described in detail.

[0090] The shaft (4) may have a first portion (41) on which a spring (23) and a spring support (24) are placed. The first portion may accommodate at least one of the spring and the spring support. The shaft (4) may have a second portion (42) that controls the movement of the shaft. The second portion may control at least one of the rotation of the shaft and the translation of the shaft. At least a part of the second portion may be accommodated in the shaft hole (31). The shaft (4) may have a third portion (43) that is connected to the first mounting plate (5). The first portion (41), the second portion (42), and the third portion (43) may be connected to each other. The first portion (41), the second portion (42), and the third portion (43) may have different shapes. Each of the first part (41), the second part (42), and the third part (43) may have at least a portion that is circular.

[0091] The cover (2) can accommodate at least a portion of a bearing (22). The bearing (22) can be larger than the shaft hole (31). The bearing (22) can be placed outside the first portion (41). The bearing can induce smooth rotation of the shaft. The bearing can alleviate the relative pushing force between the cover and the housing.

[0092] The configuration of the above second part (42) is explained with reference to the shaft drawing of Fig. 7. Fig. 7(a) is a top perspective view, Fig. 7(b) is a front view, and Fig. 7(c) is a bottom perspective view.

[0093] Referring to FIGS. 5 to 7, the second portion (42) of the shaft may have first fixed recesses (44) spaced apart from each other in the circumferential direction. At least two first fixed recesses may be spaced apart from each other in the circumferential direction. A first fixed switch (411) may be inserted into the first fixed recess (44). When an external force is applied to the first fixed switch, the force of the spring may be overcome. The external force may cause the first fixed switch (411) to enter the first fixed recess. The external force may be automatic control or manual operation by an operator. When the first fixed switch (411) enters the first fixed recess, the shaft (4) cannot rotate. When the first fixed switch (411) enters the first fixed recess, the shaft (4) cannot translate with respect to the housing. When the first fixed switch (411) is positioned inside the first fixed recess, the housing and the shaft can move together. This state can prevent the workpiece from rotating when the jaw (E)(F) performs an unclamping operation on the workpiece. A spring can be provided on the first fixed switch. The spring can apply force in a direction in which the first fixed switch is pulled out of the first fixed recess.

[0094] The unclamped state of the jaw may refer to a state in which the jaw has moved radially outward. If the jaw is in the unclamped state, the jaw may not be holding the workpiece. Even if the jaw is in the unclamped state, the jaw may still be holding the workpiece. This operation may constitute a feature of the indexing device of the present disclosure. The clamped state of the jaw may refer to a state in which the jaw has moved radially inward.

[0095] The second part (42) of the shaft may have a third fixing recess (45). The third fixing recess may be defined by the spacing between projections (45) (46) spaced apart from each other at the upper and lower portions of the second part (42). Here, the upper and lower portions may be based on the axial direction of the shaft. The projections (45) (46) may protrude in the radial direction of the second part (42). A third fixing switch (413) may be inserted into the spacing between the projections. The third fixing switch may be a bolt.

[0096] When the third fixing switch is deeply inserted into the housing, it can enter the third fixing recess. In this state, the shaft and the housing can operate together when the jaw performs an unclamping operation. In this state, the workpiece and the first fixing frame can be separated from each other when the jaw performs an unclamping operation. When the third fixing switch is slightly inserted into the housing, it may not enter the third fixing recess. In this state, the shaft and the housing can operate together when the jaw performs an unclamping operation. In this state, the workpiece can be fixed to the first fixing frame when the jaw performs an unclamping operation.

[0097] By the interaction of the third fixed switch and the third fixed recess, the workpiece can be automatically withdrawn when the processing of the workpiece is completely completed. For example, the workpiece can be automatically withdrawn when the 360-degree processing is completed. For the withdrawal of the workpiece, the fixing frame (5) and the workpiece can be separated from each other. For example, in the case where a 360-degree rotation is required for the complete processing of the workpiece, there can be only one third fixed recess.

[0098] A keyway (48) may be provided at the lower portion of the third portion (43). A hole (47) may be provided at the lower portion of the third portion. The keyway (48) may be connected to a key (52 of FIG. 8) of the first mounting frame (5). By the action of the keyway (48) and the key (52), the shaft and the first mounting frame may rotate together. By the action of the keyway (48) and the key (52), the shaft and the first mounting frame may rotate together at a precise angle. A lower alignment member (27) may be fastened to the hole (47). The lower alignment member (27) may move the shaft and the first mounting frame together.

[0099] Refer again to FIGS. 5 and 6.

[0100] An oil ring (25) may be provided between the first mounting frame (5) and the housing (3). The oil ring (25) may prevent cutting oil or foreign substances from entering the interior of the housing. Accordingly, the operation of the fixed switch (411) (413) may be facilitated. A washer (26) may be provided between the first mounting frame (5) and the housing (3). The washer may allow the first mounting frame to rotate smoothly with respect to the housing.

[0101] Fig. 8 is a drawing of the first mounting frame, where Fig. 8(a) is a top perspective view, Fig. 8(b) is a cross-sectional view, and Fig. 8(c) is a bottom perspective view.

[0102] Referring to Fig. 8, the washer (26) may provide a groove on the upper surface (51) of the first mounting frame (5). A key (52) on which the lower end of the shaft (4) is placed may be provided on the upper surface of the first mounting frame (5). The first mounting frame (5) may have a side surface (56) that may be exemplified as a square. Here, the square may have a side surface shape and a horizontal cross-section shape. A hole (55) for fastening the lower alignment member (27) may be provided above and below the first mounting frame. The shaft and the first mounting frame may be moved together by the lower alignment member. A mounting protrusion (54) may be provided on the lower surface (53) of the first mounting frame. The four mounting protrusions are exemplified as being provided at each vertex. The exemplary mounting protrusion may be suitable for a cross pipe component. The example mounting frame may be suitable for holding a pipe component with extensions at 90-degree intervals. Other mounting frames may be used depending on the specifications of the pipe component.

[0103] Fig. 9 is a drawing explaining the operation of the first fixed switch, where Fig. 9(a) illustrates when the first fixed switch is not operated, and Fig. 9(b) illustrates when the first fixed switch is operated. Fig. 9 is a drawing explaining the operation when unclamping is initiated. Here, the operation may mean that the first fixed switch is engaged with the first fixed recess.

[0104] Referring to Fig. 9, the first fixing switch (411) is not operated (see a). At this time, the housing (3) and the shaft (4) can move separately. When the jaw moves farther in the radial direction, the spring (23) can expand. The expansion force of the spring can push the shaft downward. The downward movement of the shaft can be equivalent to the downward movement of the first fixing frame. Accordingly, the workpiece can be fixed to the first fixing frame. This state can be at least one of the time when the workpiece is held and the time when the workpiece is rotated.

[0105] The above first fixed switch (411) may be operated (see b). At this time, the housing (3) and the shaft (4) may move together. When the jaw moves farther in the radial direction, the shaft may move farther in the radial direction together with the housing. The spring (23) may contract. The upward movement of the shaft may be equivalent to the upward movement of the first mounting frame. Accordingly, the gap between the first and second mounting frames may be larger than the size of the workpiece. Accordingly, the workpiece may be separated from the first mounting frame. This state may be at least one of the time of withdrawing the workpiece and the time of stopping the rotation of the workpiece.

[0106] Fig. 10 is a drawing explaining the operation of the third fixed switch, where Fig. 10(a) shows when the third fixed switch is not operated, and Fig. 10(b) shows when the third fixed switch is operated. Fig. 10 is a drawing explaining the operation when unclamping is initiated. Here, the operation may mean that the third fixed switch is engaged with the third fixed recess.

[0107] Referring to Fig. 10, the third fixed switch (413) is not operated (see a). At this time, the housing (3) and the shaft (4) can move separately. When the jaw moves farther in the radial direction, the spring (23) can expand. The expansion force of the spring can push the shaft downward. The downward movement of the shaft can be equivalent to the downward movement of the first fixing frame. Accordingly, the workpiece can be fixed to the first fixing frame. This state can be at least one of the time when the workpiece is held and the time when the workpiece is rotated.

[0108] The third fixed switch (413) may be operated (see b). At this time, the housing (3) and the shaft (4) may move together. When the jaw moves radially farther, the shaft may move radially farther together with the housing. The spring (23) may contract. The upward movement of the shaft may be equivalent to the upward movement of the first fixing frame. Accordingly, the workpiece may be separated from the first fixing frame. This state may be when the workpiece is taken out.

[0109] The first fixed switch may be operated when the processing of the workpiece is not performed smoothly, when correction of the processing is required, or when intervention by the operator is required. The third fixed switch may be automatically operated at preset cycles or angles. The third fixed switch may be automatically operated in response to the position of the third fixed recess. The installation of the third fixed recess and the third fixed switch may vary depending on the type of the workpiece. For example, the processing of the workpiece may be completed by processing at 180 degrees. In this case, two of the third fixed switches and the third fixed recess may be provided at equal intervals.

[0110] The above first fixed switch can perform the function of the above third fixed switch simultaneously. For example, after processing of a cross pipe component by 360-degree rotation is completed, the operator can press the first fixed switch. At this time, when the jaw unclamps after processing of the workpiece is completed, the shaft can move together. Here, the unclamping may refer to the jaw moving farther in the radial direction. By controlling the first fixed switch by the operator in this way, the third fixed switch may not be separately required. When the third fixed switch is provided, the processed workpiece can be automatically withdrawn. This provides the advantage of convenience for the operator. For example, the workpiece that has been processed in all directions 360 degrees can be automatically withdrawn.

[0111] The above-mentioned first clause (E) may have a configuration for guiding the workpiece. The above-mentioned second clause (F) may have a configuration for rotating the workpiece. The rotation of the workpiece may refer to rotating the workpiece to process different parts of the workpiece. For example, after processing the first branch of a cross pipe component, it may refer to a 90-degree rotation to perform processing on the second branch.

[0112] Figures 11 and 12 are exploded drawings of a part of the second clause, where Figure 11 is an exploded drawing of an adjacent part of the alignment stand, and Figure 12 is an exploded drawing of an adjacent part of the second fixing frame.

[0113] Referring to Figures 5 and 6, the second clause can be understood to include the fixed piece (12a), alignment stand (1a), fastener (19a), cover (2a), and axle (6a) in the same configuration as the first clause. The axle can include the housing, the cover, and the alignment stand.

[0114] The second group can guide the workpiece. The second fixing frame (74) can fix the workpiece. The second group can adjust the machining position of the workpiece. For example, the workpiece can be a cross pipe component. In this case, when machining of one branch is completed, the cross pipe component can be rotated 90 degrees. The 90 degree rotation of the cross pipe component can be performed by the clamping / unclamping operation of the second group. When the first and second groups are clamped / unclamped at least once, the cross pipe component can be rotated 90 degrees. In an embodiment, when the first and second groups are clamped / unclamped twice, the cross pipe component can be rotated 90 degrees.

[0115] The cover (2a) may provide a second rotation medium receiver (110). The second rotation medium receiver (110) may accommodate at least a portion of the second rotation medium (10). The cover may support the second rotation medium so as not to rotate. The shaft (96) may accommodate a spring (98) and a spring support (97). The cover (2a) may accommodate a spring (98) and a spring support (97). The spring may push the shaft radially inward. The shaft (96) may pass through the second rotation medium (10). The shaft may be coupled with the first rotation medium (9). The shaft may be coupled with the lower alignment member (27a). The shaft may be coupled with the second mounting frame (7).

[0116] The above shaft (96) can rotate. The shaft can rotate together with the lower alignment member (27a), the second mounting frame (7), and the first rotating medium (10). The shaft can move radially. The radial movement of the shaft can also be the same. In rotating, the shaft (96), the lower alignment member (27a), the second mounting frame (7), and the first rotating medium (10) can be referred to as a shaft. The definition of the shaft can also be applied to the first clause.

[0117] The above-mentioned second article may include an oil ring (77) and a washer (78). Accordingly, the inflow of oil and foreign substances into the housing can be prevented. Accordingly, the rotational motion can be performed smoothly.

[0118] A bearing (95) may be placed inside the second rotating medium (10). The bearing (95) may facilitate the rotation of the shaft. A snap ring (95) may be placed on the upper side of the bearing (95). The snap ring may prevent the bearing from being removed from the second rotating medium.

[0119] The housing (8) of the second clause can accommodate at least a portion of the second rotating medium (9). The housing (8) can have an axle hole (81). The axle hole (81) can accommodate at least a portion of the shaft.

[0120] The above housing can guide the rotational action of the workpiece. The housing of the second article can be referred to as a rotation housing because it guides the rotation of the workpiece. The housing of the second article can be referred to as a guide housing because it guides the radial movement of the workpiece.

[0121] A second fixing switch (731) for fixing the rotation of the second mounting frame (7) may be provided on one side of the housing (8). The function of the second fixing switch may correspond to that of the first fixing switch (411). Just as the first fixing switch (411) can fix the shaft (4) of the first group, the second fixing switch (731) can fix the shaft (96) of the second group. The second fixing switch (731) can contact the second mounting frame (7). The second fixing switch (731) can enter the second fixing recess (73) of the second mounting frame (7).

[0122] Fig. 13 illustrates a second mounting frame, where Fig. 13(a) is a top perspective view, Fig. 13(b) is a front view, and Fig. 13(c) is a bottom perspective view.

[0123] Referring to FIGS. 11 to 13, the second mounting frame may have a first portion (71) and a second portion (72) extending radially outward from the first portion. Here, the radial direction may be based on the center of rotation of the chuck.

[0124] The first part (71) may have a fixing projection (74) for holding the workpiece. The first part (71) may be provided with a hole (75) for fastening the lower alignment member (27a). The first part may be provided with a size and shape capable of holding the workpiece. The cross-section of the second part may be provided in an approximately circular shape for rotational movement. The first part and the second part may have different cross-sectional shapes.

[0125] The washer (78) can be fastened to the upper end of the second portion (72). A second fixing recess (73) can be provided in a circumferential direction at approximately the center of the second portion. At least two second fixing recesses (73) can be provided spaced apart from each other. The functions of the second fixing recess (73) and the second fixing switch (731) can be the same as the functions of the first fixing recess and the first fixing switch.

[0126] The oil ring (77) may be provided at the lower portion of the second fixed recess. The lower portion where the oil ring is placed may provide an edge (76) connected to the first rotating medium (9). The edge may be provided in a non-circular shape. The first rotating medium (9) may include a recess (91) for seating the edge. The edge and the recess may have an approximately rectangular cross-section. The edge (76) and the first rotating medium (9) may rotate together.

[0127] Fig. 14 is a drawing showing the housing, where Fig. 14(a) is a bottom cross-sectional view of the housing, and Fig. 14(b) is a cross-sectional view of 14b-14b of Fig. 14(a).

[0128] Referring to Figures 11, 12, and 14, the operation of the housing (8) will be described.

[0129] A push rod for rotating the first rotation medium (9) may be provided on one side of the second housing (8). At least one push rod may be provided. At least two push rods (82a) (82b) may be provided to provide sufficient and balanced force. The push rod may include a housing, a spring at least partially accommodated within the housing, and a push bar provided at a front end of the housing and pushed by the spring. The push bar may push the side surface of the first rotation medium (9). The pushing action of the first rotation medium (9) may be generated by the two push rods (82a) (82b). The two push rods may apply a moment to rotate the first rotation medium.

[0130] The above-mentioned push rod (82)(82b) can only be rotated when the first rotation medium (9) is rotatable. When the first rotation medium (9) is engaged with the second rotation medium (10), the first rotation medium (9) cannot rotate. When the engagement between the first rotation medium (9) and the second rotation medium (10) is released, the first rotation medium (9) can rotate. When the spring (98) pushes the first rotation medium (9) radially inward, the engagement between the first rotation medium (9) and the second rotation medium (10) can be released.

[0131] The rotation of the first rotating medium (9) by the above-described push bar may occur when the second member (F) is unclamped. In other words, when the second member moves from a state of clamping the workpiece to an unclamped state, the spring (98) may push the shaft (96). At this time, the shaft (96) may move radially inward. At this time, the second rotating medium (10) is fixed to the cover (2a), and the first rotating medium (9) may move radially inward. The side slope (92) of the first rotating medium (9) contacts the push bar of the push bar (82). The side slope (92) and the push bar may have an angular arrangement of 90 degrees. In other words, the vector of the pushing force of the push bar may not be at an angle of 90 degrees with the side slope and the extension direction. Accordingly, the push rod can rotate the first rotating medium (9) by a predetermined rotation angle. The push rods (82a) (82b) may be provided as a pair facing each other. The extension angles of the push rods (82a) (82b) may be parallel lines spaced apart from each other. Accordingly, the push rod can provide a moment for rotating the first rotating medium.

[0132] The rotational motion of the first rotating medium (9) can lead to the rotational motion of the second mounting frame (7). Accordingly, the workpiece can rotate. The rotational motion of the second mounting frame (7) can lead to the rotational motion of the first mounting frame (5) by the workpiece. The workpiece can maintain a stable posture during the rotational motion.

[0133] The first rotating medium (9) can rotate due to the opposing movements of the first and second rotating media (9)(10). The rotation angle of the first rotating medium (9) may not be sufficient during the unclamping.

[0134] When the second group is clamped, the first rotating medium (9) can be further rotated. In other words, when the second group moves from an unclamped state to a clamped state of the workpiece, the spring (98) can contract. At this time, the shaft (96) can move radially outward. At this time, the second rotating medium (10) and the first rotating medium (9) can approach each other. When the first rotating medium (9) approaches the second rotating medium (10), the first rotating medium can additionally rotate. For this purpose, the contact surfaces of the first and second rotating media (9) (10) can have an inclined portion that is biased in one direction. The first rotating medium (9) can have a bottom slope (93). The second rotating medium (10) can have an upper slope (101). The above-mentioned bottom slope and the above-mentioned top slope may have at least two inclined portions arranged in the circumferential direction. The inclined portions may have different inclined angles in a clockwise direction from the vertex and in a counterclockwise direction from the vertex. The inclined portion of the bottom slope and the inclined portion of the top slope may have shapes that are symmetrical to each other. Accordingly, they may be interlocked when mated.

[0135] The rotational motion of the first rotating medium (9) can lead to the rotational motion of the second fixing frame (7). Accordingly, the workpiece can rotate.

[0136] As seen, the workpiece can perform one rotation by the first rotational motion of the second fixing frame while the jaw is clamped and unclamped, and the second rotational motion of the second fixing frame while the jaw is clamped and unclamped. After machining one branch of the workpiece, two rotations may be performed for machining another branch. One rotation of the workpiece and the shape of the workpiece may have an integer multiple relationship. For example, when the number of rotations of the workpiece is 1, the angle between the branches of the workpiece can be n (n is an integer).

[0137] The first rotational motion may have a smaller rotational angle than the second rotational motion. The side with the steeper angle in the inclined portion may be adjacent to the rotational direction. Here, the rotational direction may be the respective rotational directions of the first and second rotational media. By the first rotational motion, the first and second rotational media may rotate beyond the vertex of the inclined portion. Depending on the shape of the inclined portion, after rotating at a small rotational angle by the pusher (82a)(82b), it may be rotated at a large angle by the second rotational angle. Accordingly, one stroke of rotation can be performed by one first and second rotational motion.

[0138] Figure 15 is a drawing sequentially explaining the stroke of the first rotating medium.

[0139] Figure 15(a) shows that the above-mentioned joint transitions from a clamped state to an unclamped state. At this time, the first and second rotating media can be separated from each other.

[0140] Figure 15(b) is a plan view showing the action of the first rotating medium and the push rod. In this case, the first rotating medium is separated, and the push rod (82)(82b) causes the first rotating medium to perform the first rotational motion.

[0141] Figure 15(c) is a drawing showing the result of the first rotational motion. In this case, it can be seen that the first rotational medium rotates by an angle (a) exceeding the vertex of the inclined portion as a result of the first rotational motion.

[0142] Figure 15(d) shows the transition of the above-mentioned joint from an unclamped state to a clamped state. At this time, the first and second rotating media may engage with each other. At this time, the gentle portions of the inclined portions may correspond to each other. In other words, the gentle portions of the first rotating media may encounter each other. At this time, the second rotating motion begins.

[0143] Figure 15(e) shows the above-described joint entering a clamping state. At this time, the first and second rotating media can slide relative to each other. In other words, the gently inclined portion of the first rotating media and the gently inclined portion of the second rotating media can slide relative to each other and move. At this time, the second rotating motion begins.

[0144] Figure 15(f) shows the above-mentioned state of the clamping. At this time, it can be seen that the second rotational motion has been completed.

[0145] Fig. 16 is a drawing showing the operation of the second fixed switch and the second fixed recess. Fig. 16(a) shows a state in which the second fixed switch is operating, and Fig. 16(b) shows a state in which the second fixed switch is not operating.

[0146] When the second fixed switch (731) is activated, the shaft can move together with the housing. Accordingly, the second fixing frame (7) may not rotate the workpiece. Accordingly, the second fixing frame may not hold the workpiece. Accordingly, the gap between the first and second fixing frames may be larger than the size of the workpiece.

[0147] The above first and second fixed switches and the above first and second fixed recesses can perform corresponding actions to each other.

[0148] By operating either one of the first and second fixed switches, the workpiece can be taken out. By operating the second fixed switch, the rotation of the workpiece can be fixed. By operating both the first and second fixed switches, the workpiece can be taken out more conveniently.

[0149] Fig. 17 is a drawing showing the action of the above-mentioned push rod and the side slope, where Fig. 17(a) is a drawing showing the push rod in action, and Fig. 17(b) is a drawing showing the state where the push rod is not in action.

[0150] Referring to Fig. 17, when the first and second rotating media are separated, the push rod can act to rotate the first rotating media. When the first and second rotating media are not separated, the push rod cannot rotate the first rotating media.

[0151] According to the present disclosure, when machining a part with a complex shape, multiple positions of the workpiece can be machined using the clamping and unclamping motion of the chuck. Accordingly, a machining device and indexing device can be implemented inexpensively.

Claims

1. Rotating chuck; At least two jaws capable of moving in the radial direction of the chuck to grasp the workpiece; A tool for machining the workpiece away from or adjacent to the chuck; Article 2 of the above at least two articles, A second shaft capable of fixing the workpiece in conjunction with a stroke motion of the chuck moving away and closer in the radial direction of the second member; a second spring that pushes the shaft in the direction of the workpiece; and A machining device including at least one rotating medium capable of rotating the shaft at a predetermined angle in conjunction with a stroke motion of the chuck moving away from and toward the radial direction of the chuck.

2. In paragraph 1, Article 1 of the above at least two articles, A first shaft for fixing the workpiece during a stroke motion in which the first member moves away from and toward the chuck in the radial direction; and A machining device including a first spring that pushes the shaft in the direction of the workpiece.

3. In paragraph 2, A first shaft having a second shaft hole supporting the first shaft; At least two first fixed recesses spaced apart in the circumferential direction of the first shaft; and A machining device comprising a first fixing switch supported on the first axis and capable of fixing the second shaft by selectively engaging at least one of the at least two first fixing recesses.

4. In paragraph 2, A first shaft having a first shaft hole supporting the first shaft; a third fixed recess provided on the shaft; and A third fixed switch is included in the above-mentioned axis, A processing device in which, when the processing of the above workpiece is completed, the third fixed recess and the third fixed switch are engaged, so that the first axis and the first shaft are fixed.

5. In paragraph 2 A first shaft having a first shaft hole supporting the first shaft; and It includes a first fixing projection placed at the tip of the first shaft and holding the workpiece, When the first clause above transitions from a clamping state to an unclamping state, the first fixing projection is a machining device capable of holding the workpiece.

6. In paragraph 1 or 2, The above at least two groups are two group processing devices.

7. In paragraph 1, At least one rotating medium is, The first rotating medium rotates at a predetermined angle according to one stroke moving away and closer in the radial direction of the chuck; and A processing device including a second rotating medium that guides the rotation of the first rotating medium without rotating according to the single stroke.

8. In paragraph 7, A side slope provided on the side of the first rotating medium; and A processing device comprising at least one milling cutter that provides elastic force for the side slope.

9. In paragraph 1, An axle having an axle hole supporting the second shaft; and It includes a fixing projection placed at the tip of the second shaft to hold the workpiece, When the above-mentioned jaw transitions from a clamping state to an unclamping state, the fixing projection is a processing device capable of holding the workpiece.

10. In paragraph 9, At least two fixed recesses spaced apart in the circumferential direction of the second shaft; and A machining device comprising a second fixing switch supported on the axle and selectively engaging at least one of the at least two recesses to fix the second shaft.

11. At least two jaws provided on the chuck and moving in the radial direction of the chuck. Any one of the above two groups; shaft; Axle supporting the above shaft; A spring provided between the shaft and the axle to push the shaft inward in the radial direction; and A fixing frame is provided on the above shaft and is capable of fixing the workpiece, An indexing device for a workpiece of a machining device capable of indexing the workpiece, wherein another one of the at least two groups is capable of indexing the workpiece.

12. In paragraph 11, At least two fixed recesses spaced circumferentially on the shaft; and An indexing device for a workpiece of a machining device including a fixing switch provided on the axle and selectively inserted into at least two fixing recesses to fix the axle and the shaft.

13. In paragraph 11, A single fixed recess provided in the above shaft; and An indexing device for a workpiece of a machining device including a fixing switch provided on the axle and selectively inserted into at least two fixing recesses to fix the axle and the shaft.

14. In paragraph 11, Another one of the above at least two groups, A first rotating medium that rotates at a predetermined angle according to one stroke moving away and closer in the radial direction of the chuck; and An indexing device for a workpiece of a machining device including a second rotating medium that guides the rotation of the first rotating medium without rotating according to the single stroke.

15. In paragraph 14, Another one of the above at least two groups, other shaft; Other axles supporting the above other shafts; Another spring provided between the other shaft and the other axle to push the other shaft inward in the radial direction; and Another fixing member is provided at the end of the other shaft and is capable of fixing the workpiece, An indexing device for a workpiece of a machining device in which the first rotating medium moves together with the other shaft and the second rotating medium is fixed to the other axis.

16. In paragraph 15, An indexing device for a workpiece of a processing device having an incline on a surface where the first rotating medium and the second rotating medium contact each other.

17. In paragraph 15, An indexing device for a workpiece of a processing device in which a milling machine that rotates the first rotating medium is fixed to the shaft.

18. In paragraph 15, At least two different fixed recesses spaced circumferentially apart from each other on the other shaft; and An indexing device for a workpiece of a machining device comprising another fixing switch provided on said other axle and selectively inserted into said at least two other fixing recesses so as to fix said other axle and said other shaft.

19. At least two jaws provided on the chuck and moving in the radial direction of the chuck. At least one of the above two clauses, shaft; Axle supporting the above shaft; A spring provided between the shaft and the axle to push the shaft inward in the radial direction; A fixing frame provided on the above shaft and capable of fixing the workpiece; a second rotating medium fixed to the above axle; and The first and second rotating media include a first rotating medium that rotates together with the shaft and moves in the radial direction, An indexing device for a workpiece of a machining device capable of fixing the workpiece, wherein another of the at least two groups of the above-mentioned groups is capable of fixing the workpiece.

20. In paragraph 19, A push rod that rotates the side of the first rotating medium when the shaft moves outward in the radial direction; and An indexing device for a workpiece of a machining device, wherein the machining device includes an inclined portion that rotates the bottom surface of the first rotating medium when the axis moves inward in the radial direction.

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