Drum-type tool magazine for multi-axis machining centers

Abstract

The present invention provides a drum-type tool magazine suitable for a multi-axis processing machine, which allows the processing machine to directly take and place a tool handle with a processing tool with at least one main axis, including a driving assembly, a rotating frame and a plurality of tool clamps, wherein a rotating shaft is provided at the center of the rotating frame, and a plurality of bases are arranged in a ring shape and spaced apart on the peripheral side, and the driving assembly is connected and drives the rotating frame to rotate. The plurality of tool clamps are arranged side by side on each base along the axial direction of the rotating shaft, and are used to clamp the tool handle, and each tool clamp on the same base has a clamping edge that is parallel to a tangent direction of the peripheral side of the rotating frame and penetrates, so that the processing tools with tool handles on each tool clamp are all in a lying position at the position close to the peripheral side of the rotating frame, and the volume of the tool magazine can be relatively reduced when more tool handles are accommodated, thereby forming the present invention.

Description

Technical Field

[0001] The invention relates to a tool magazine, in particular to a drum type tool magazine suitable for a multi-axis processing machine. Background Art

[0002] In order to facilitate the smooth replacement of tools during the machining process of the machining center, a corresponding tool magazine is usually set up next to it. Common types of tool magazines include bamboo hat type, disc type, chain type, and tool magazine type, so as to accommodate various types of machining tools and process planning. The tool magazine mainly provides the machining center with tools of different machining types for alternating use during the workpiece machining process. It has become an indispensable and important accessory for the machining center, and the design and innovation trend of the tool magazine is no less than that of the machining center itself.

[0003] Common tool magazines, such as Taiwan Patent No. I658896, disclose a tool magazine rotating unit for a gate-type machining center. It discloses a disc-type tool magazine, in which the tool disc has a tool clamping portion arranged in a ring along its circumference to set the tool. Since the axial direction of the tool and the tool disc are parallel, if a large number of tools are to be set, and considering that the tools do not block each other when taking and placing, the tool disc must have a larger diameter, which increases the volume of the tool magazine and occupies more space. Another example is Taiwan Patent No. M534056, which discloses a tool magazine with a tool sleeve removable synchronous door opening. It discloses a chain-type tool magazine, which mainly relies on a driving device to drive a tool chain composed of a chain plate to rotate, and then drives the tool sleeve to move. Since the axial directions of the tool sleeve and the driving device are also parallel, and the number of the tool sleeves depends on the size of the tool chain composed of the chain plate, if more tool sleeves are to be set, the length of the tool chain will inevitably increase, and the volume will also increase and occupy more space.

[0004] In addition to the above-mentioned problems, the common tool magazines of Patent No. I658896 can only be used for single-spindle processing machines to change the processing tools. If the processing machine is a multi-axis processing machine, it cannot provide more than two spindles for tool change at the same time. In addition to being unable to provide more than two spindles for tool change at the same time, Patent No. M534056 also requires a tool change mechanism including a tool change arm for tool change, and it is also impossible to change tools directly with the spindle. Summary of the invention

[0005] To solve the above problems, the present invention provides a drum-type tool magazine suitable for a multi-axis processing machine, wherein the tool magazine has a drum-type structure for placing tool handles provided for processing tools, and the spindle of the processing machine is used to take out or return tools.

[0006] An embodiment of the present invention provides a drum-type tool magazine suitable for a multi-axis processing machine, for the processing machine to directly take and place a tool handle with a processing tool with at least one main axis, including a driving assembly, a rotating frame and a plurality of tool clamps, a rotating shaft is provided at the center of the rotating frame and has a circular peripheral side, and a plurality of bases are arranged in a ring shape and spaced apart along the peripheral side, and the driving assembly links and drives the rotating frame to rotate; the plurality of tool clamps are arranged side by side on each base along the axial direction of the rotating shaft to clamp the tool handle, and each tool clamp on the same base has a tool clamping edge with the same tool clamping direction, and each tool clamping edge is parallel to a tangent line direction of the peripheral side and passes through the tool clamp where it is located, so that the processing tools with tool handles on each tool clamp are all in a lying position at their positions close to the peripheral side of the rotating frame.

[0007] Preferably, a fixed seat for combining with the processing machine is respectively provided at both ends of the rotating shaft, and the rotating frame includes two circular cutter discs with equal outer diameters to fix the rotating shaft, and the circumferential range of the two cutter discs connected along the axial direction is the circumferential side, and the two cutter discs are on the rotating shaft and are respectively close to the fixed seats at both ends of the rotating shaft.

[0008] Preferably, the two cutter discs include a first cutter disc and a second cutter disc, the first cutter disc has a plurality of bearings arranged in a ring shape equidistantly with the rotating shaft as the center, the driving assembly includes a motor, the motor is connected to a guide member, each of the bearings abuts against the guide member respectively as the first cutter disc rotates, the motor drives the guide member to rotate and guides the abutted bearings to alternately shift, so as to drive the first cutter disc to link the rotating shaft and the second cutter disc to rotate synchronously.

[0009] Preferably, each of the bases is in the shape of an elongated strip and spans and is fixed to the two tool discs. Each of the tool clamps includes two clamp bodies. Each of the clamp bodies has a connecting portion and a claw portion. The two connecting portions are overlapped and are pivotally connected to the bases via an axis. The two claw portions open and close as the two connecting portions pivot relative to each other.

[0010] Preferably, each of the tool clamps includes a pin member, which is arranged on the base parallel to the shaft member, and the pin member passes through the two connecting parts at a position different from the shaft member. The pin member can be displaced along its axial direction and is located in an unlocked position or a locked position relative to the base. The two clamping bodies can pivot relative to each other when the pin member is in the unlocked position, and the tool handle can be taken away or returned by spreading the two claws; the two clamping bodies are restricted from pivoting relative to each other when the pin member is in the locked position, and the tool handle is clamped and fixed by the two claws.

[0011] Preferably, the two connecting parts each have a pin hole, the two pin holes have equal diameters and are aligned when the two connecting parts overlap and are penetrated by the pin member, the pin member has a large diameter section and a small diameter section, the large diameter section has a width approximately equal to the diameter of the two pin holes, and the width of the small diameter section is smaller than the two pin holes, when the pin member is in the locked position, the large diameter section is in the two pin holes to restrict the two clamps from pivoting relative to each other; when the pin member is in the unlocked position, the small diameter section is in at least one of the pin holes and there is a gap, so that the two clamps can pivot relative to each other.

[0012] Preferably, each of the bases has a pin groove to accommodate the pin, and the pin is abutted against a reset elastic member in the pin groove. The pin is normally pushed by the reset elastic member and is located in the locked position, and when the pin is displaced to the unlocked position, the reset elastic member is compressed to generate a pre-force, so that the pre-force is used to reset the pin to the locked position.

[0013] Preferably, it further includes a positioning seat superimposed on the two connecting parts and locked to the base, the positioning seat has a through hole aligned with the two pin holes, and the through hole and the small diameter section are of equal width, when the pin is located in the locked position, the large diameter section is located in the two pin holes, and the small diameter section is located in the through hole and extends an exposed section, when the exposed section is pressed into the through hole, the pin is displaced from the locked position to the unlocked position.

[0014] Preferably, the pin has a slot located at the exposed section, and a roller is centrally disposed on the exposed section in the slot, so that the roller is pressed against the exposed section to be pressed into the through hole.

[0015] Preferably, the pin has a chamfer at the top of the exposed section, the chamfer is biased toward one side of the slot and is in an arc curve, and the roller is exposed at the top of the pin on the side with the chamfer.

[0016] Preferably, the pin is axially concave on one side of the large diameter section to form a tangent plane, and a stopper is provided on the base beside the pin groove to align with the tangent plane, and the stopper limits the pin from deflecting when it is displaced axially relative to the base.

[0017] Preferably, each of the clamping bodies has a restoring elastic member pressed against its outer side, and when at least one of the clamping bodies pivots outward, it compresses the restoring elastic member pressed against it, and swings back to restoring as the restoring elastic member pressed against it rebounds.

[0018] Preferably, the reset elastic member can be arranged between any two of the tool clamps, with its two ends respectively abutting between the clamping bodies of two adjacent tool clamps; the reset elastic member can also have one end abutting against the clamping body of one of the tool clamps, and the other end abutting against a stopper arranged on the base.

[0019] Therefore, the tool magazine of the present invention is composed of a rotating frame with multiple bases arranged in a ring shape on the circumferential side of a circle, and each base has a plurality of tool clamps arranged side by side, so the circumference of the rotating frame is all tool clamps, and because the tool clamping edges of the tool clamps are parallel to the tangent direction of the circumferential side of the rotating frame and penetrate, all processing tools with tool handles can be close to the rotating frame. Under this structure, the rotating frame only needs to slightly increase its length or diameter to set more tool clamps on the circumferential side of the rotating frame, and the space can be properly used to accommodate a larger number of tool handles, so that more tool handles can be clamped and the space occupied by the tool magazine can be relatively saved. Furthermore, the tool clamps on the same base are arranged side by side and the tool clamping edges have the same tool clamping direction. Therefore, if the processing machine equipped with the tool magazine of the present invention is a multi-axis processing machine, more than two spindles can simultaneously and directly take out or return the tool handles clamped by the tool clamps arranged side by side on the same base without changing the tool through a tool changing arm. Compared with a single spindle or the need to change the tool through a tool changing arm, the tool changing time can be greatly shortened during the processing process, thereby more effectively improving the process efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a tool magazine according to an embodiment of the present invention installed on a processing machine, in which the processing machine is a multi-axis processing machine with two main spindles.

[0021] Figure 2 It is a front view schematic diagram of a tool magazine according to an embodiment of the present invention installed on a processing machine.

[0022] Figure 3 It is a side view schematic diagram of a tool magazine installed on a processing machine according to an embodiment of the present invention. The driving assembly shown in the figure can drive the rotating frame to rotate forward or reverse.

[0023] Figure 4 It is a schematic diagram of a tool holder according to an embodiment of the present invention being arranged in a tool magazine along with a base.

[0024] Figure 5 1 is an exploded configuration diagram of a tool holder on a base according to an embodiment of the present invention.

[0025] Figure 6 yes Figure 4 Sectional view taken along section line 6-6.

[0026] Figure 7 yes Figure 4 Cross-sectional view taken along section line 7-7.

[0027] Figure 8It is a schematic diagram of the two main shafts of the processing machine in the embodiment of the present invention moving horizontally to a position, at which time the rotating frame has been driven by the driving assembly to rotate to the position where the tool handle is to be taken.

[0028] Fig. 9 It is a schematic diagram of the main shaft of the processing machine in the embodiment of the present invention then moving horizontally to pick up the tool and moving vertically downward.

[0029] Fig.10 It is a schematic diagram of an embodiment of the present invention when two spindles are simultaneously aligned with tool handles of two tool holders on the same base.

[0030] Fig.11 Schematic diagram of a spindle extending toward a tool holder and engaging a tool handle in an embodiment of the present invention.

[0031] Fig.12 It is a schematic diagram of the spindle in an embodiment of the present invention being in an unlocking position when engaging with a tool handle through a pressing member pushing a latch pin.

[0032] Fig.13 2 is a schematic diagram from another perspective showing that the spindle in the embodiment of the present invention is in an unlocked position when engaging with the tool handle through the pressing member pushing the pin member.

[0033] Fig.14 It is a schematic diagram of the spindle of the processing machine with the tool handle returning to the tool holder in the embodiment of the present invention, at which time the pressing member pushes the pin member to the unlocking position along the guide angle.

[0034] Fig.15 It is a schematic diagram of the embodiment of the present invention when the tool handles of the other two tool holders on the same base are then aligned simultaneously. DETAILED DESCRIPTION

[0035] In order to facilitate the explanation of the central idea of ​​the present invention as described in the above invention content column, a specific embodiment is now described. Various objects in the embodiments are depicted according to the proportions, sizes, deformations or displacements suitable for the description, rather than being drawn and explained according to the proportions of the actual components.

[0036] See also Figures 1 to 15 As shown, the present invention provides a drum-type tool magazine 100 suitable for a multi-axis processing machine, wherein the tool magazine 100 comprises a driving assembly 10, a rotating frame 20, and a plurality of tool holders 30, wherein:

[0037] The rotating frame 20 has a rotating shaft 21 at its center, and the rotating shaft 21 has an axial direction X. The rotating frame 20 has a circular peripheral side 22. The rotating frame 20 also has a plurality of bases 23. The plurality of bases 23 are arranged in a ring shape along the peripheral side 22, and the bases 23 are spaced apart on the peripheral side 22. The rotating frame 20 is connected to the driving component 10, and the driving component 10 drives the rotating frame 20 to rotate. Here, the direction of rotation includes forward rotation and reverse rotation.

[0038] In this embodiment, the rotating frame 20 is provided with a fixed seat 24 at both ends of the rotating shaft 21. The rotating shaft 21 can pivot relative to the fixed seats 24 at both ends. The rotating frame 20 is combined with the top of the processing machine 200 by the fixed seats 24. The rotating frame 20 of this embodiment includes two cutter discs, including a first cutter disc 25 and a second cutter disc 26, both of which are circular. The first cutter disc 25 and the second cutter disc 26 have the same outer diameter and are fixed to the rotating shaft 21. The first cutter disc 25 and the second cutter disc 26 are on the rotating shaft 21 and are close to the fixed seats 24 at both ends of the rotating shaft 21. The circumferential side 22, in this embodiment, is the range of the circumference of the first cutter disc 25 and the second cutter disc 26 connected along the axial direction X, but the present invention is not limited thereto. The circumferential side 22 can also be the circumference of a cylinder such as the length occupied by the first cutter disc 25 and the second cutter disc 26, or the circumference of more than three cutter discs.

[0039] The driving assembly 10, in this embodiment, mainly comprises a motor 11 connected to a guide member 12 (such as Figure 3 As shown in FIG. 1 , the first cutter head 25 of the present embodiment has a plurality of bearings 27 arranged in an annular shape with equal distances around the rotating shaft 21 (as shown in FIG. 1 ). Figure 3 , Figure 4 As shown in FIG. 1 , each bearing 27 abuts against the guide member 12 as the first cutter disc 25 rotates, and the motor 11 drives the guide member 12 to rotate and guide the abutted bearings 27 to alternately move, so as to drive the first cutter disc 25 to link the rotating shaft 21 and the second cutter disc 26 to rotate synchronously. Preferably, the bearing 27 of this embodiment is a shank bearing, and the guide member 12 can be a cam or a worm to abut and guide each bearing 27. In addition, the motor 11 and the guide member 12 of this embodiment are disposed on one of the fixed seats 24.

[0040] The plurality of tool holders 30 are arranged side by side on each base 23 along the axial direction X of the rotating shaft 21 to clamp the tool handle 300, and each tool holder 30 of the same base 23 has a tool clamping opening 31 with the same tool clamping direction, and each tool clamping opening 31 is parallel to a tangent direction Y on the circumferential side 22 and penetrates the tool holder 30. The processing tool 301 with the tool handle 300 on each tool holder 30 is in a lying position at the position close to the circumferential side 22 of the rotating frame 20. Specifically, the tool clamping opening 31 penetrates the tool holder 30 in a penetration direction Y', and the penetration direction Y' is parallel to the tangent direction Y (such as Fig. 9 As shown), when the tool handle 300 has a processing tool 301 and is clamped by the tool clamp 30 at the tool clamping edge 31, the axial direction of the tool handle 300 is the same as the through direction Y' and is also parallel to the tangent direction Y, but not parallel to the axial direction X, that is, the tool magazine 100 of this case is obviously different from the common tool magazine.

[0041] In this embodiment, a total of eight bases 23 are provided on the peripheral side 22 of the rotating frame 20 (eg Fig. 9 As shown), each base 23 is in the shape of an elongated strip and is connected across and fixed to the first cutter disc 25 and the second cutter disc 26, and each base 23 has six tool clamps 30 arranged side by side in this embodiment. Therefore, the tool magazine 100 of this embodiment has a total of forty-eight tool clamps 30, which can clamp forty-eight tool handles 30.

[0042] like Figures 5 to 7 As shown, each tool clamp 30 includes two clamp bodies 40 and a pin 50. The two clamp bodies 40 have the same structure and have a connecting portion 41 and a claw portion 42 respectively. The two connecting portions 41 are overlapped and are connected to the base 23 in a pivotable manner by a shaft 43. The two claw portions 42 open and close with the relative pivoting of the two connecting portions 41. The connecting portion 41 is a side plate with a thinner thickness than the clamp body 40 itself. The two clamp bodies 40 of this embodiment are oppositely arranged and the two connecting portions 41 are overlapped, so that the positions of the two claw portions 42 are symmetrical. In this embodiment, the two connecting portions 41 both have a pin hole 411. The apertures of the two pin holes 411 are equal. The two pin holes 411 are aligned when the two connecting portions 41 overlap.

[0043] The pin 50 is disposed on the base 23 and is parallel to the shaft 43. The position of the pin 50 on the base 23 is different from that of the shaft 43. The pin 50 is provided with two overlapping and aligned pin holes 411. The pin 50 can be displaced along its axial direction and is located at an unlocking position P1 relative to the base 23 (e.g. Fig.12 , Fig.13 as shown) or a locked position P2 (as shown Figure 6 , Figure 7 shown).

[0044] Furthermore, when the two clamps 40 are at the unlocking position P1 with the pin 50, the two clamps 40 can pivot relative to each other. When the handle 300 is engaged with the spindles 201 and 202 and moves with them, an external force can be applied to the two claws 42 to open the two claws 42, so that the handle 300 can be removed from the tool holder 30, or returned to the tool holder 30; and when the two clamps 40 are at the locking position P2 with the pin 50, the two clamps 40 will be restricted by the pin 50 and will not pivot relative to each other, and the handle 300 will be clamped and fixed by the two claws 42. The two clamps 40 can pivot relative to each other, including both clamps 40 can swing, or one clamp 40 is stationary and the other clamp 40 swings relative to it, all of which belong to the type of the two clamps 40 can pivot relative to each other referred to in the present invention.

[0045] The pin 50 has a large diameter section 51 and a small diameter section 52. The large diameter section 51 has a width that is approximately equal to the diameter of the two pin holes 411, while the small diameter section 52 has a width that is smaller than the two pin holes 411. When the pin 50 is in the locked position P2, the large diameter section 51 is in the two pin holes 411 to prevent the two clamps 40 from pivoting relative to each other; and when the pin 50 is in the unlocked position P1, the small diameter section 52 is in at least one of the pin holes 411 and there is a gap G (such as Fig.12 , Fig.13 As shown), the gap G provides space for the two clamps 40 to pivot relative to each other.

[0046] Preferably, the present embodiment further comprises a positioning seat 60 locked to the base 23, and the positioning seat 60 is stacked on the two connecting parts 41, and there is still a space between the positioning seat 60 and the base 23 for the two clamping bodies 40 to move and pivot. The positioning seat 60 has a through hole 61, and the through hole 61 is aligned with the two pin holes 411 when the positioning seat 60 is locked to the base 23, and the through hole 61 and the small diameter section 52 are of equal width. When the pin 50 is located at the locked position P2, the large diameter section 51 is located in the two pin holes 411, and the small diameter section 52 is located in the through hole 61, and the small diameter section 52 extends an exposed section 521 outside the through hole 61. When the exposed section 521 is pressed into the through hole 61, the pin 50 is displaced from the locked position P2 to the unlocked position P1.

[0047] In the present embodiment, the base 23 has a pin groove 231 for accommodating the pin 50, and a reset elastic member 53 is provided in the pin groove 231, which is a compression spring in the present embodiment. The pin 50 is abutted against the large diameter section 51 by the reset elastic member 53 in the pin groove 231, and the pin 50 is normally pushed by the reset elastic member 53 and is located in the locked position P2. When the pin 50 moves to the unlocked position P1, the reset elastic member 53 is compressed to generate a pre-force. When the force of the compression of the reset elastic member 53 disappears, the pre-force is used to reset the pin 50 to the locked position P2.

[0048] In the present embodiment, the pin 50 has a tangent plane 54 on one side of the large diameter section 51. The tangent plane 54 is formed by being concave in the large diameter section 51 along the axial direction of the pin 50. A stopper 70 is provided on the base 23 next to the pin groove 231 to align with the tangent plane 54. The stopper 70 is a cylinder in the present embodiment, and the base 23 has a groove 232 for accommodating and positioning the stopper 70. When the pin 50 is displaced axially relative to the base 23, the stopper 70 restricts the pin 50 from deflecting.

[0049] Furthermore, when the pin 50 is in the unlocking position P1, the small diameter section 52 has a gap G in the pin hole 411 of the upper clamp body 40, so that the upper clamp body 40 can pivotally swing more than the lower clamp body 40, but the present invention is not limited to this, that is, the small diameter section 52 can also have a gap G in the pin holes 411 of both clamp bodies 40 (not shown in the figure), so that the two clamp bodies 40 have the same pivotal swing amplitude.

[0050] In this embodiment, the pin 50 has a slot 522, which is located at the exposed section 521 of the pin 50. A roller 55 is centrally arranged at the slot 522 and is located at the exposed section 521. In this embodiment, the pin 50 has a chamfer 523 at the top of the exposed section 521. The chamfer 523 is biased toward one side of the slot 522 and is in an arc shape. The roller 55 is exposed at the top of the pin 50 on the side with the chamfer 523. The roller 55 is pushed up so that the exposed section 521 is pressed into the through hole 61.

[0051] like Figure 5 As shown, each clamp body 40 of this embodiment has a reset elastic member 80 against its outer side. The reset elastic member 80 is a compression spring in this embodiment. When the two clamp bodies 40 are pivoted relative to each other, the clamp body 40 pivoting outward compresses the reset elastic member 80 against which it is pressed, and it is pivoted back and reset as the reset elastic member 80 against which it is pressed rebounds. The reset elastic member 80 is provided between any two knife clamps 30, and its two ends can be respectively against the clamp bodies 40 of two adjacent knife clamps 30; the reset elastic member 80 can also be one end against the clamp body 40 of one knife clamp 30, and the other end against a stopper 233 provided on the base 23. In this embodiment, there are three stoppers 233 on the base 23, two of which are provided on the outer sides of the knife clamps 30 at the two ends of the base 23, and another stopper 233 is provided in the middle of the base 23. The reset elastic member 80 of this embodiment allows the clamp body 40 of the knife clamp 30 to be reset after pivoting with the help of the stopper 233.

[0052] The processing machine 200 used with the tool magazine 100 in this embodiment is a gantry type center processing machine. The processing machine 200 in this embodiment has two spindles 201 and 202. The two spindles 201 and 202 can be displaced longitudinally and transversely on the processing machine 200, and can directly take and place the tool handle 300 with the processing tool 301 without using a tool change arm. When the two spindles 201 and 202 are in a state without a tool, and the tool handle 300 to be used needs to be removed from the tool holder 30, at this time, the rotating frame 20 of the tool magazine 100 rotates (such as Figure 3 As shown), the two spindles 201, 202 are displaced on the processing machine 200, so that the two spindles 201, 202 are aligned and moved toward the tool handle 300 (as shown) of the processing tool 301 to be taken. Figures 8 to 10As shown in FIG. 1 , the two main shafts 201 and 202 contact the exposed section 521 through a pressing member 203 and press against the roller 55, so that the exposed section 521 is pressed into the through hole 61 and the pin 50 is located at the unlocking position P1. At this time, the gap G between the small diameter section 52 and the pin hole 411 causes the clamp 40 to pivot (as shown in FIG. 1 ). Fig.12 , Fig.13 As shown in FIG. 1 , the two claws 42 are opened, and each tool handle 300 can be removed from the tool holder 30 along with the movement of the two spindles 201 and 202 .

[0053] Furthermore, if a new machining tool 301 is needed after machining of the two spindles 201 and 202, the tool handle 300 can be returned to the original tool holder 30. At this time, the pressing member 203 contacts the exposed section 521 along the guide angle 523 and presses against the roller 55 (such as Fig.14 As shown in FIG. 2 , the exposed section 521 is pressed into the through hole 61 to locate the pin 50 at the unlocking position P1. The two claws 42 are thus opened, and the tool handle 300 can be moved along with the spindles 201 and 202 and returned to the tool holder 30. If the new machining tool 301 is also on the same base 23, the rotating frame 20 does not need to be rotated. As long as the two spindles 201 and 202 are laterally moved to the position where the new machining tool 301 is located (as shown in FIG. 2 ), the rotating frame 20 does not need to be rotated. Fig.15 However, if the new machining tool 301 and the original machining tool 301 are not on the same base 23, the rotating frame 20 must be rotated to realign the two spindles 201, 202 with the handle 300 of the new machining tool 301, so as to repeat the aforementioned tool taking action and remove the new machining tool 301 from the tool holder 30.

[0054] Furthermore, when the knife holder 30 is returned to or removed from the knife handle 300, the pin 50 is pushed by the reset elastic member 53 to the locked position P2, and the large diameter section 51 is used to restrict the two clamp bodies 40 from pivoting relative to each other in the two pin holes 411 with a diameter approximately equal to the width of the large diameter section 51. Therefore, if a knife handle 300 is provided on the knife holder 30, the knife handle 300 will be clamped and fixed by the two claws 42, and unless the pin 50 is moved to the unlocked position P1, the knife handle 300 will not be removed from the two claws 42, so as to ensure that the knife handle 300 is positioned on the knife holder 30.

[0055] It is not difficult to find the characteristics of the present invention from the above description, that is:

[0056] 1. The tool magazine 100 of the present invention is composed of a plurality of bases 23 arranged in a ring shape on the circular circumference 22 of the rotating frame 20, and a plurality of tool clamps 30 are arranged side by side on each base 23. Therefore, the space on the circumference 22 of the rotating frame 20 is all used by the tool clamps 30 to place the tool handles 300. Moreover, since the tool clamping openings 31 of the tool clamps 30 are parallel to the tangent direction Y of the circumference 22 of the rotating frame 20 and penetrate, the processing tools 301 of the tool handles 300 can be all close to the rotating frame 20 to avoid the processing tools 301 being placed out of the rotating frame 20 and occupying space. If more tool clamps 30 are to be arranged on the circumference 22 of the rotating frame 20 to fix the tool handles 300, the rotating frame 20 only needs to be slightly increased in length or diameter. The structure of the tool magazine 100 of the present invention can properly utilize space to accommodate a larger number of tool handles 300, so that a large number of tool handles 300 can be clamped and the space occupied by the tool magazine 100 can be relatively saved.

[0057] 2. Furthermore, since the tool magazine 100 of the present invention has the tool holders 30 arranged side by side on the same base 23 and the tool clamping openings 31 have the same tool clamping direction, if the processing machine 200 on which the tool magazine 100 of the present invention is installed is a multi-axis processing machine (i.e., a machine with more than two spindles), the two or more spindles 201, 202 can simultaneously and directly take tools from or return tools to the tool handles 300 arranged on the tool holders 30 arranged side by side on the same base 23 without changing tools through a tool changing arm. Compared with a common processing machine with a single spindle or even a machine that must change tools through a tool changing arm, the tool changing time can be greatly shortened during the processing process, thereby more effectively improving work efficiency.

[0058] 3. The knife clamp 30 of the present invention further provides a safety knife locking mechanism, so that when the two clamp bodies 40 are in the unlocking position P1 when the pin 50 is in the unlocking position, the knife handle 300 can open the two claws 42, so that the knife handle 300 can be removed from the knife clamp 30, or the knife handle 300 can be returned to the knife clamp 30. When the pin 50 is in the locking position P2, the two clamp bodies 40 are restricted from pivoting relative to each other, that is, the two clamp bodies 40 are restricted by the pin 50 so that the two claws 42 cannot be opened. Therefore, even if force is applied to the knife handle 300, the knife handle 300 cannot be separated from the knife clamp 30, thereby avoiding the problem of the knife handle 300 being separated from the knife clamp 30 and falling when subjected to external force.

[0059] The above embodiments are only used to illustrate the present invention, and are not used to limit the scope of the present invention. Any modifications or changes that do not violate the technical solution of the present invention belong to the scope of protection of the present invention. Description of the drawings:

[0061] 100: Tool magazine. 200: Processing machine.

[0062] 201: Main axis. 202: Main axis.

[0063] 203: Pressing member. 300: Knife handle.

[0064] 301: Processing tool. 10: Drive assembly.

[0065] 11: Motor. 12: Guide.

[0066] 20: Rotating frame. 21: Rotating shaft.

[0067] 22: Side. 23: Base.

[0068] 231: Pin groove. 232: Groove.

[0069] 233: Stopper. 24: Fixed seat.

[0070] 25: First blade. 26: Second blade.

[0071] 27: Bearing. 30: Tool holder.

[0072] 31: Clamp the knife edge. 40: Clamp body.

[0073] 41: Connecting part. 411: Pin hole.

[0074] 42: Claw. 43: Shaft.

[0075] 50: pin. 51: Large diameter section.

[0076] 52: Small path section. 521: Exposed section.

[0077] 522: slotting. 523: chamfering.

[0078] 53: Reset elastic member. 54: Cutting plane.

[0079] 55: roller. 60: positioning seat.

[0080] 61: Perforation. 70: Stopper.

[0081] 80: Reset elastic member. G: Gap.

[0082] P1: unlocked position. P2: locked position.

[0083] X: Axial direction. Y: Tangential direction.

[0084] Y': through direction.

Claims

1. A drum-type tool magazine suitable for a multi-axis processing machine, for the processing machine to directly take and place a tool handle with a processing tool with at least one main axis, characterized in that: include: a drive assembly; A rotating frame, with a rotating shaft at the center and a circular circumference, and a plurality of bases arranged in a ring shape and spaced apart along the circumference, the driving assembly links and drives the rotating frame to rotate, and a fixing seat for coupling with the processing machine is respectively provided at both ends of the rotating shaft, and the rotating frame includes two circular cutter discs with equal outer diameters to be fixedly connected to the rotating shaft, and the circumference of the two cutter discs is connected along the axial direction of the rotating shaft, namely the circumference, and the two cutter discs are on the rotating shaft and close to the fixing seats at both ends of the rotating shaft; and A plurality of tool clamps are arranged side by side along the axial direction of the rotating shaft on each of the bases to clamp the tool handle. Each of the tool clamps on the same base has a tool clamping opening with the same tool clamping direction. Each tool clamping opening is parallel to a tangent line direction of the peripheral side and passes through the tool clamp. The processing tools with tool handles on each of the tool clamps are all in a lying position at their positions close to the peripheral side of the rotating frame.

2. The drum-type tool magazine for a multi-axis machining center according to claim 1, characterized in that: The two cutter discs include a first cutter disc and a second cutter disc. The first cutter disc has a plurality of bearings arranged in a ring shape equidistantly with the rotating shaft as the center. The driving assembly includes a motor, and the motor is connected to a guide member. The bearings abut against the guide member respectively as the first cutter disc rotates. The motor drives the guide member to rotate and guides the abutted bearings to alternately shift, so as to drive the first cutter disc to link the rotating shaft and the second cutter disc to rotate synchronously.

3. The drum-type tool magazine for a multi-axis machining center according to claim 1, characterized in that: Each of the bases is in the shape of an elongated strip and is straddled and fixed to the two cutter discs. Each of the tool clamps includes two clamp bodies. Each of the clamp bodies has a connecting portion and a claw portion. The two connecting portions are overlapped and are pivotally connected to the bases via an axis. The two claw portions open and close as the two connecting portions pivot relative to each other.

4. The drum-type tool magazine for a multi-axis machining center according to claim 3, characterized in that: Each of the tool clamps includes a pin member, which is arranged on the base parallel to the shaft member, and the pin member passes through the two connecting parts at a position different from the shaft member. The pin member can be displaced along its axial direction and is located in an unlocked position or a locked position relative to the base. The two clamping bodies can pivot relative to each other when the pin member is in the unlocked position, and the tool handle can be taken away or returned by spreading the two claws; the two clamping bodies are restricted from pivoting relative to each other when the pin member is in the locked position, and the tool handle is clamped and fixed by the two claws.

5. The drum-type tool magazine for a multi-axis machining center according to claim 4, characterized in that: The two connecting parts each have a pin hole, the two pin holes have equal diameters and are aligned when the two connecting parts are overlapped and are penetrated by the pin member, the pin member has a large diameter section and a small diameter section, the large diameter section has a width approximately equal to the diameter of the two pin holes, and the width of the small diameter section is smaller than the two pin holes, when the pin member is in the locked position, the large diameter section is in the two pin holes to restrict the two clamps from pivoting relative to each other; when the pin member is in the unlocked position, the small diameter section is in at least one of the pin holes and there is a gap, so that the two clamps can pivot relative to each other.

6. The drum-type tool magazine for a multi-axis machining center according to claim 5, characterized in that: Each of the bases has a pin groove to accommodate the pin, and the pin is abutted against a reset elastic member in the pin groove. The pin is normally pushed by the reset elastic member and is located in the locked position. When the pin is displaced to the unlocked position, the reset elastic member is compressed to generate a pre-force, and the pre-force is used to reset the pin to the locked position.

7. The drum-type tool magazine for a multi-axis processing machine according to claim 6, characterized in that: It further includes a positioning seat superimposed on the two connecting parts and locked to the base, the positioning seat has a through hole aligned with the two pin holes, and the through hole and the small diameter section have the same width, when the pin is located in the locked position, the large diameter section is located in the two pin holes, and the small diameter section is located in the through hole and extends an exposed section, when the exposed section is pressed into the through hole, the pin is displaced from the locked position to the unlocked position.

8. The drum-type tool magazine for a multi-axis machining center according to claim 7, characterized in that: The pin has a slot located at the exposed section, and a roller is centrally arranged on the exposed section in the slot, so that the exposed section is pressed into the through hole by the roller being pressed upward.

9. The drum-type tool magazine for a multi-axis processing machine according to claim 8, characterized in that: The pin has a chamfer at the top of the exposed section, the chamfer is biased toward one side of the slot and is in an arc curve, and the roller is exposed at the top of the pin on the side with the chamfer.

10. The drum-type tool magazine for a multi-axis processing machine according to claim 6, characterized in that: The pin is concave inwardly along the axial direction on one side of the large diameter section to form a cutting plane, and a stopper is arranged on the base beside the pin groove to align with the cutting plane. The stopper limits the pin from deflecting when it is displaced axially relative to the base.

11. The drum-type tool magazine for a multi-axis machining center according to claim 4, characterized in that: Each of the clamping bodies has a reset elastic member pressed against the outer side thereof. When at least one of the clamping bodies pivots outward, it compresses the reset elastic member pressed against it, and swings back to reset as the reset elastic member pressed against it rebounds.

12. The drum-type tool magazine for a multi-axis machining center according to claim 11, characterized in that: The reset elastic member can be arranged between any two of the tool clamps, with its two ends respectively abutting between the clamping bodies of two adjacent tool clamps; the reset elastic member can also have one end abutting against the clamping body of one of the tool clamps, and the other end abutting against a stopper arranged on the base.

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