GB2424384A - Tool magazine assembly - Google Patents

Tool magazine assembly Download PDF

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Publication number
GB2424384A
GB2424384A GB0506029A GB0506029A GB2424384A GB 2424384 A GB2424384 A GB 2424384A GB 0506029 A GB0506029 A GB 0506029A GB 0506029 A GB0506029 A GB 0506029A GB 2424384 A GB2424384 A GB 2424384A
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GB
United Kingdom
Prior art keywords
inner ring
bracket
wall
motor
holes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0506029A
Other versions
GB0506029D0 (en
GB2424384B (en
Inventor
Hsin-Jung Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEW GIFU ENTPR CO Ltd
New GIFU Enterprise Co Ltd
Original Assignee
NEW GIFU ENTPR CO Ltd
New GIFU Enterprise Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEW GIFU ENTPR CO Ltd, New GIFU Enterprise Co Ltd filed Critical NEW GIFU ENTPR CO Ltd
Priority to GB0506029A priority Critical patent/GB2424384B/en
Publication of GB0506029D0 publication Critical patent/GB0506029D0/en
Publication of GB2424384A publication Critical patent/GB2424384A/en
Application granted granted Critical
Publication of GB2424384B publication Critical patent/GB2424384B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/15526—Storage devices; Drive mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B23Q16/022—Indexing equipment in which only the indexing movement is of importance
    • B23Q16/025—Indexing equipment in which only the indexing movement is of importance by converting a continuous movement into a rotary indexing movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/15526—Storage devices; Drive mechanisms therefor
    • B23Q2003/15532—Storage devices; Drive mechanisms therefor the storage device including tool pots, adaptors or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

A tool magazine assembly for a machining center holds multiple tool holders and has an outer ring 10, an inner ring 20(20', 20'') and multiple brackets 30(30'). The inner ring 20(20', 20'') is mounted in but does not contact the outer ring 10. The brackets 30(30') are attached to the inner ring 20(20', 20''), and each bracket 30(30') has a central hole (Fig 2, 311), multiple fastening holes (Fig 2, 32) and a central bolt (Fig 2, 35). The central bolts (Fig 2, 35) extend through the central holes (Fig 2, 311) between the inner ring 20(20', 20'') and the outer ring 10 . Each tool holder (Fig 2, 40) has multiple bolts (Fig 2, 44). The bolts (Fig 2, 44) extend though the fastening holes (Fig 2, 32) to attach the tool holders (Fig 2, 40) to the brackets 30(30'). Rollers 37 may roll in the inner annular recess (Fig 4, 12) in the outer ring. The rollers 41 may roll in the outer annular recess (Fig 4, 11) in the outer ring 10. The rollers 331 may roll on the bearing surface inside the annular shoulder (Fig 10, 82) on the mounting bracket (Fig 4, 80). A transmission device connects to a motor to rotate the inner ring 20(20', 20'').

Description

1 2424384
TOOL MAGAZINE ASSEMBLY FOR A MACHINING CENTER
1. Field of the Invention
The present invention relates to tool magazine assembly, especially to a tool magazine assembly for a machining center.
2. Description of the Prior Arts
A machining center is a machine that can cut, drill, bore, mill, etc. With reference to Figs. 12 and 13, the machining center has a conventional tool magazine assembly (60) to hold multiple tool holders (61). The conventional tool magazine assembly (60) comprises two curved channels (70), a central disk (62), multiple brackets (63) and multiple bolts (64). The curved channels (70) are mounted on opposite sides of the machining center, and each channel (70) has a bottom end. The bottom ends of the channels (70) are separated from each other by a gap (71). The central disk (62) is mounted in the machining center between the channels (70) and has a circular edge. The brackets (63) are mounted securely on the circular edge of the central disk (62). The bolts extend through the circular edge of the central disk (62) and the brackets (63) to attach the brackets (63) to the central disk (62). The tool holders (61) are attached respectively to the brackets (63) and selectively slide in the channels (70). Each tool holder (61) has a tool mounted in the tool holder (61). When one of the tools has to be changed, the tool holder (61) must be positioned in the gap (71). A motor rotates the central disk (62), and the tool holders (61) slide along the channels (70).
However, the conventional tool magazine assembly (60) has numerous shortcomings that include the following.
1. Multiple through holes have to be formed in the central disk (62) and the brackets (63) so the bolts (64) can extend through the through holes. Because the through holes in the central disk (62) must correspond to the through holes in the brackets (63), forming the through holes is not easy.
2. Because the channels (70) are huge, the channels (70) cost a lot and mounting the channels (70) in the machining center is complicated.
3. Because the tool holders (61) do not individually rotate but slide on the chaimels (70), the tool holders (61) rub against the channels (70) and cause the motor to vibrate easily. The vibration of the motor generates loud noises and adds significantly to the load on the motor. Furthermore, the friction between the tool holders (61) and' the channels (70) and the vibration of the motor shorten the life of the tool holders (61), the channels (70) and the motor.
To overcome the shortcomings, the present invention provides an improved tool magazine assembly for a machining center to mitigate or obviate the aforementioned problems.
The main objective of the present invention is to provide a tool magazine assembly for a machining center that is less expensive, has a longer life and rotates smoothly. The tool magazine assembly for a machining center holds multiple tool holders and has an outer ring, an inner ring and multiple brackets.
The inner ring is mounted in and separate from the outer ring and has multiple through holes. The brackets are attached to the inner ring, and each bracket has multiple through holes, a central hole, multiple fastening holes, multiple bolts and a central bolt. The bolts extend through the through holes to attach the brackets to the inner ring. The central bolts extend through the central holes between the inner ring and the outer ring. Each tool holder has multiple bolts.
The bolts extend through the fastening holes to attach the tool holders to the brackets.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
IN TIlE DRAWINGS Fig. 1 is a perspective view of a first embodiment of a tool magazine assembly for a machining center in accordance with the present invention with multiple tool holders; Fig. 2 is an exploded perspective view of the tool magazine assembly in Fig. 1 with a tool holder; Fig. 3 is a front view of the tool magazine assembly in Fig. 1 with two tool holders; Fig. 4 is a top view in partial section of the tool magazine assembly in Fig. 1 with two tool holders; Fig. 5 is a front view of a second embodiment of a tool magazine assembly for a machining center in accordance with the present invention with two tool holders; Fig. 6 is a top view in partial section of the tool magazine assembly in Fig. 5 with two tool holders; Fig. 7 is a front view of a third embodiment of a tool magazine assembly for a machining center in accordance with the present invention with two tool holders; Fig. 8 is a front view of a fourth embodiment of a tool magazine assembly for a machining center in accordance with the present invention with two tool holders; Fig. 9 is a top view in partial section of the tool magazine assembly in Fig. 8 with two tool holders; Fig. 10 is a front view of a fifth embodiment of a tool magazine assembly for a machining center in accordance with the present invention with two tool holders; Fig. 11 is a top view in partial section of the tool magazine assembly in Fig. 10 with two tool holders; Fig. 12 is a front view of a conventional tool magazine assembly in
accordance with the prior art; and
Fig. 13 is a rear view of the conventional magazine assembly in Fig. 12.
With reference to Figs. 1, 2, 3 and 4, a tool magazine assembly for a machining center in accordance with the present invention holds multiple tool holders (40), comprises an optional mounting bracket (80), an outer ring (10), an inner ring (20), multiple brackets (30) and a motor assembly (50).
With further reference to Figs. 10 and 11, the mounting bracket (80) has an annular shoulder (82) with an inner bearing surface.
The outer ring (10) has an outer wall, an inner wall, a front surface, an optional outer annular recess (11) and an optional inner annular recess (12). The outer annular recess (11) is formed in the outer wall. The inner annular recess (12) is formed in the inner wall.
With further reference to Figs. 7 and 9, the inner ring (20, 20', 20") is mounted in and is separate from the outer ring (10) and has an inner wall, an outer wall, a front surface, a rear surface, multiple through holes (21) and multiple optional teeth (22) or multiple optional beveled teeth (23). The through holes (21) are formed through the inner ring (20). The teeth (22) are formed on the inner wall. The beveled teeth (23) are formed on the rear surface.
With further reference to Figs. 5 and 6, each bracket (30, 30') is mounted on the inner ring (20, 20', 20"), has an inside end, an outside end, a central hole (311), a central bolt (35) and a central nut (36) and may have multiple through holes (31), multiple fastening holes (32), multiple bolts (33) and multiple nuts (34). The outside end is U-shaped. The central hole (311) is formed through the bracket (30, 30'). The central bolt (35) extends through the central hole (311) and has a threaded end, a distal end and a roller (37). The roller (37) is mounted rotatably on the distal end and rolls on the outer wall of the inner ring (20, 20', 20") and in the inner annular recess (12) in the inner wall of the outer ring (10) or on the front surface of the outer ring (1 0). The central nut (36) is screwed onto the threaded end of the central bolt (35). The through holes (31) are formed through the bracket (30) near the inside end and correspond to through holes (21) through the inner ring (20, 20', 20"). The fastening holes (32) are formed through the bracket (30) near the outside end. The bolts (33) extend through the through holes (21, 31) in the inner ring (20, 20', 20") and the bracket (30) to attach the bracket (30) to the inner ring (20). Each bolt (33) has a threaded end, a distal end and an optional roller (331). The roller (33 1) is mounted rotatably on the distal end of the bolt (33) and may roll on the bearing surface of the annular shoulder (82). The nuts (34) are screwed respectively onto the threaded ends of the bolts (33).
With reference to Figs. 3, 7 and 8, the motor assembly (50) rotates the inner ring (20, 20', 20"), has a motor and a transmission device. The transmission device connects to the motor, rotates the inner ring (20) and may comprise a worm gear (51), a reduction device (53) and a spur gear (54) or a bevel gear (56).
The worm gear (51) connects to and is rotated by the motor and has a spiral groove (52). The spiral groove (52) is formed on the worm gear (51) and engages the rollers (331) on the bolts (33) to rotate the inner ring (20, 20', 20").
The reduction device (53) connects to and is driven by the motor. The spur gear (54) connects to and is driven by the reduction device (53) and engages the teeth (22) on the inner wall of the inner ring (20, 20', 20") to rotate the inner ring (20').
The bevel gear (56) connects to and is driven by the motor and engages the beveled teeth (23) on the inner ring (20") to rotate the inner ring (20").
Each tool holder (40) has a roller (41), two hinges (42) and multiple bolts (44). The roller (41) is mounted on the tool holder (40) and rolls along the outer annular recess (11) in the outer ring (10). The hinges (42) are attached securely and adjustably to the bracket (30) and pivotally on the tool holder (40), and each hinge (42) has multiple fastening holes (43). The bolts (44) extend respectively through the fastening holes (43) and screw into the fastening holes (32) in bracket (30) to securely hold the tool holder (40) on the inner ring (20).
In a first, second and fifth embodiment of the tool magazine assembly in accordance with the present invention as shown in Figs. 3, 4, 5, 6, 10 and 11, the motor drives the worm gear (51). The spiral groove (52) engages the rollers (331) on the bolts (33) to rotate the inner ring (20). Because the tool holders (40) are attached to the inner ring (20), the tool holders (40) rotate.
In the first embodiment as shown in Figs. 3 and 4, the rollers (37) on the central bolts (35) roll in the inner annular recess (12) in the outer ring (10). The rollers (41) on the tool holders (40) roll in the outer annular recess (11) in the outer ring (10).
In the second embodiment as shown in Figs 5 and 6, the rollers (37) on the central bolts (35) roll on the rear surface of the outer ring (10). The rollers (41) on the tool holders (40) roll on the outer wall of the outer ring (10).
In the fifth embodiment as shown in Figs. 10 and 11, the rollers (331) roll on the bearing surface inside the annular shoulder (82) on the mounting bracket (80).
In a third embodiment of the tool magazine assembly in accordance with the present invention as shown in Fig. 7, the motor drives the reduction device (53), and the reduction device (53) rotates the spur gear (54). The spur gear (54) engages the teeth (22) on the inner ring (20') to rotate the inner ring (20').
Because the tool holders (40) are mounted on the inner ring (20'), the tool holders (40) rotate.
In a fourth embodiment of the tool magazine assembly in accordance with the present invention as shown in Figs. 8 and 9, the motor rotates the bevel gear (56). The bevel gear (56) engages the longitudinal teeth (22) to rotate the inner ring (20"). Because the tool holders (40) are mounted on the inner ring (20"), the tool holders (40) rotate.
The tool magazine assembly as described has the following advantages over the conventional tool magazine assembly.
1. The components of the tool magazine assembly are simple and are easy to manufacture. The simple components cost less and reduce the total cost of the machining center.
2. The brackets (30) are easy to manufacture modularly.
3. Because the rollers (331, 37, 41) roll on the inner ring (20), the outer ring (10) and the mounting bracket (80), friction and the resultant heat, noise and wear between them is reduced, and the life of the tool magazine assembly is longer.

Claims (8)

CLAIMS: 1. A tool magazine assembly for a machining center comprising an outer ring (10) having an outer wall, an inner wall and a front surface; an inner ring (20, 20', 20") mounted in and separate from the outer ring (10) and having an inner wall; an outer wall; a front surface; a rear surface; and multiple through holes (21) formed through the inner ring (20, 20', 20"); multiple brackets (30, 30') mounted on the inner ring (20, 20', 20"), and each bracket (30, 30') having an inside end; an outside end being U-shaped; a central hole (311) formed through the bracket (30, 30'); a central bolt (35) extending through the central hole (311) and having a threaded end, a distal end; and a roller (37) mounted rotatably on the distal end and rolling on the outer wall of the inner ring (20, 20', 20") and the outer ring (10); a central nut (36) screwed onto the threaded end of the central bolt (35); and a motor assembly (50) rotating the inner ring (20, 20', 20") and having a motor; and a transmission device connecting to the motor to rotate the inner ring (20, 20', 20"). 2. The tool magazine assembly as claimed in claim 1, wherein each bracket (30, 30') further comprises multiple through holes (31) formed through the bracket (30, 30') near the inside end and corresponding to through holes (21) through the inner ring (20, 20', 20"); multiple fastening holes (32) formed through the bracket (30, 30') near the outside end; multiple bolts (33) extending through the through holes (21, 31) in the inner ring (20, 20', 20") and the bracket (30, 30') to attach the bracket (30, 30') to the inner ring (20, 20', 20"), and each bolt (33) having a threaded end; a distal end; and a roller (331) mounted rotatably on the distal end of the bolt (33); multiple nuts (34) screwed respectively onto the threaded ends of the bolts (33); and the transmission device of the motor assembly (50) comprises a worm gear (51) connecting to and rotated by the motor and having a spiral groove (52) formed on the worm gear (51) and engaging the rollers (331) on the bolts (33) to rotate the inner ring(20, 20', 20"). 3. The tool magazine assembly as claimed in claim 2, wherein the rollers (37) on the central bolts (35) roll on the front surface of the outer ring (10). 4. The tool magazine assembly as claimed in claim 2, wherein the outer ring (10) further has an outer annular recess (11) formed in the outer wall; and an inner annular recess (12) formed in the inner wall; and the rollers (37) on the central bolts (35) rolls in the inner annular recess (12) in the inner wall of the outer ring (10). 5. The tool magazine assembly as claimed in claim 1, wherein the inner ring (20, 20', 20") further has multiple teeth (22) formed on the inner wall; and the transmission device of the motor assembly (50) comprises a reduction device (53) connecting to and driven by the motor; and a spur gear (54) connecting to and driven by the reduction device (53) and engaging the teeth (22) on the inner wall of the inner ring (20, 20', 20"). 6. The tool magazine assembly as claimed in claim 1, wherein the inner ring (20") further has multiple beveled teeth (23) formed on the rear surface; and the transmission device of the motor assembly (50) comprises a bevel gear (56) connecting to and driven by the motor and engaging the beveled teeth (23) on the inner ring (20"). 7. A tool magazine assembly for a machining center comprising a mounting bracket (80) having an annular shoulder (82) with an inner bearing surface; an outer ring (10) having an outer wall, an inner wall and a front surface; an inner ring (20, 20', 20") mounted in and separate from the outer ring (10) and having an inner wall; an outer wall; a front surface; a rear surface; and multiple through holes (21) formed through the inner ring (20,20', 20"); multiple brackets (30, 30') mounted on the inner ring (20, 20', 20"), and each bracket (30, 30') having an inside end; an outside end being U-shaped; each bracket (30, 30') further comprises multiple through holes (31) formed through the bracket (30, 30') near the inside end and corresponding to through holes (21) through the inner ring (20, 20', 20"); multiple fastening holes (32) formed through the bracket (30, 30') near the outside end; multiple bolts (33) extending through the through holes (21, 31) in the inner ring (20, 20', 20") and the bracket (30, 30') to attach the bracket (30, 30') to the inner ring (20, 20', 20"), and each bolt (33) having a threaded end; V a distal end; and a roller (331) mounted rotatably on the distal end of the bolt (33) and rolling on the bearing surface of the annular shoulder (82); multiple nuts (34) screwed respectively onto the threaded ends of the bolts (33); and a motor assembly rotating the inner ring (20, 20', 20") and having a motor; and a transmission device connecting to the motor to rotate the inner ring (20, 20', 20") and having a worm gear (51) connecting to and rotated by the motor and having a spiral groove (52) formed on the worm gear (51) and engaging the rollers (331) on the bolts (33) to rotate the inner ring (20, 20', 20"). Amendments to the claims have been filed as follows: CLMMS
1. A tool magazine assembly for a machining centre comprising: an outer ring (10) having an outer wall, an inner wall and a front surface; an inner ring (20, 20', 20") mounted in and separate from the outer ring (10) and having an inner wall; an outer wall; ccc a front surface; a rear surface; and multiple through holes (21) formed through the inner ring (20, 20', 20"); multiple brackets (30, 30') mounted on the inner ring (20, 20', 20"), and each bracket (30, 30') having an inside end; an outside end being U-shaped; a central hole (311) formed through the bracket (30, 30'); a central bolt (35) extending through the central hole (311) and having a threaded end, a distal end; and a roller (37) mounted rotatably on the distal end; a central nut (36) screwed onto the threaded end of the central bolt (35); and a motor assembly (50) rotating the inner ring (20, 20', 20") and having ( a motor; and a transmission device connecting to the motor to rotate the inner ring (20, 20', 20").
2. The tool magazine assembly as claimed in Claim 1, wherein each bracket (30, 30') further comprises: multiple through holes (31) formed through the bracket (30, 30') near the inside end an corresponding to the through holes (21) of the inner ring (20, 20', 20"); multiple fastening holes (32) formed through the bracket (30, 30') near the outside end; ( multiple bolts (33) extending through the through holes (21, 31) in the inner ring (20, 20', 20") and the bracket (30, 30'), to attach the bracket (30, 30') to the inner ring (20, 20', 20"), and each bolt (33) having a threaded end; a distal end; and a roller (331) mounted rotatably on the distal end of the bolt (33); multiple nuts (34) screwed respectively onto the threaded ends of the bolts (33); and the transmission device of the motor assembly (50) comprises a worm gear (51) connected to and rotated by the motor and having a spiral groove (52) formed on the worm gear (51) and engaging the rollers (331) on the bolts (33) to rotate the inner ring (20, 20', 20").
I
3. The tool magazine assembly as claimed in Claim 2, wherein the rollers (37) on the central bolts (35) roll on the front surface of the outer ring (10).
4. The tool magazine assembly as claimed in Claim 2, wherein the outer ring (10)fiirtherhas an outer annular recess (ii) formed in the outer wall; and an inner annular recess (12) formed in the inner wall; and the rollers (37) on the central bolts (35) roll in the inner annular recess (12) in the inner wall of the outer ring (10).
5. The tool magazine assembly as claimed in Claim 1, wherein the inner ring (20, 20', 20") fiiher has multiple teeth (22) formed on the inner wall; and the transmission device of the motor assembly (50) comprises: a reduction device (53) connected to and driven by the motor; and a spur gear (54) connected to and driven by the reduction device (53) and engaging the teeth (22) on the inner wall of the inner ring (20, 20', 20") .
6. The tool magazine assembly as claimed in Claim 1, wherein the inner ring (20") further has multiple bevelled teeth (23) formed on the rear surface; and the transmission device of the motor assembly (50) comprises a bevel gear (56) connected to and driven by the motor and engaging the bevelled teeth (23) on the inner ring (20"). ( fl
7. A tool magazine assembly for a machining centre comprising: a mounting bracket (80) having an annular shoulder (82) with an inner bearing surface; an outer ring (10) having an outer wall, an inner wall and a front surface; an inner ring (20, 20', 20") mounted in and separate from the outer ring (10) and having an inner wall; an outer wall; a front surface; a rear surface; and C multiple through holes (21) roned through the inner ring (20, 20', 20"); multiple brackets (30, 30') mounted on the inner ring (20, 20', 20"), and each bracket (30, 30') having an inside end; an outside end being U-shaped; each bracket (30, 30') further comprises multiple through holes (31) formed through the bracket (30, 30') near the inside end and corresponding to the through holes (21) of the inner ring (20, 20', 20"); multiple fastening holes (32) formed through the bracket (30, 30') near the outside end; ( multiple bolts (33) extending through the through holes (21, 31) in the inner ring (20, 20', 20") and the bracket (30, 30'), to attach the bracket (30, 30') to the inner ring (20, 20', 20"), and each bolt (33) having a threaded end; a distal end; and a roller (331) mounted rotatably on the distal end of the bolt (33) and rolling on the bearing surface of the annular shoulder (82); multiple nuts (34) screwed respectively onto the threaded ends of the bolts (33); and a motor assembly rotating the inner ring (20, 20', 20") and having amotor; and a transmission device connected to the motor to rotate the inner ring (20, 20', 20") and having a worm gear (51) connected to and rotated by the motor, and having a spiral groove (52) formed on the worm gear (51) engaging the rollers (331) on the bolts (33) to rotate the inner ring (20, 20', 20").
8. A tool magazine assembly for a machining centre as generally hereinbefore described with reference to and/or illustrated in Figures 1 to 11 of the accompanying drawings.
GB0506029A 2005-03-24 2005-03-24 Tool magazine assembly for a machining centre Expired - Fee Related GB2424384B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0506029A GB2424384B (en) 2005-03-24 2005-03-24 Tool magazine assembly for a machining centre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0506029A GB2424384B (en) 2005-03-24 2005-03-24 Tool magazine assembly for a machining centre

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Publication Number Publication Date
GB0506029D0 GB0506029D0 (en) 2005-04-27
GB2424384A true GB2424384A (en) 2006-09-27
GB2424384B GB2424384B (en) 2007-04-18

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911540A (en) * 1973-03-16 1975-10-14 Giddings & Lewis Tool interchange system with break-away shoes
GB1583578A (en) * 1976-08-16 1981-01-28 Kearney & Trecker Corp Tool change mechanism for machine tools

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911540A (en) * 1973-03-16 1975-10-14 Giddings & Lewis Tool interchange system with break-away shoes
GB1583578A (en) * 1976-08-16 1981-01-28 Kearney & Trecker Corp Tool change mechanism for machine tools

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Publication number Publication date
GB0506029D0 (en) 2005-04-27
GB2424384B (en) 2007-04-18

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