Tool changing system and numerical control machine tool

Abstract

The invention provides a tool changing system and a numerical control machine tool, the tool changing system comprises a disc type tool magazine and two tool sleeve conveying mechanisms, the disc type tool magazine comprises a tool disc, tool sleeves and a tool sleeve seat, and the tool sleeves are distributed on the peripheral outer edge of the tool disc through the tool sleeve seat; each cutter sleeve conveying mechanism comprises a mounting seat, a cutter changing seat and a pushing part, one end of each mounting seat is fixed above the corresponding cutter head, the other end of each mounting seat is provided with the corresponding cutter changing seat and extends out of the corresponding cutter head, each cutter changing seat is provided with a containing space for containing one cutter sleeve, and each pushing part is movably arranged on the corresponding mounting seat; the pushing piece is used for pushing the tool pouch to be switched between the tool pouch base and the tool changing base, and the tool pouch pushing-out directions of the two tool pouch conveying mechanisms form a first included angle. By the adoption of the tool changing system, the tool changing efficiency can be improved, and only one tool magazine can be arranged to machine two workpieces in the same time period.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of machine tool technology, and in particular to a tool changing system and a CNC machine tool. Background Art

[0002] At present, in the tool changing process of CNC machine tools equipped with a horizontal tool magazine, the spindle needs to move to the tool changing position of the tool disc multiple times. The moving speed is slow and the moving distance is long. Therefore, the tool changing process is time-consuming and the tool changing method needs to be further optimized.

[0003] In addition, even without considering the tool changing efficiency, most CNC machine tools currently equipped with flat tool magazines can only process one workpiece at the same time period, so there is room for improvement in processing efficiency. Summary of the invention

[0004] The embodiments of the present application are intended to solve at least one of the existing technical problems. The embodiments of the present application provide a tool changing system and a CNC machine tool, thereby improving processing efficiency.

[0005] The relevant technical solutions of the embodiments of the present application include the following:

[0006] The first aspect of the embodiment of the present application provides a tool changing system. The tool changing system includes a disc tool magazine, the disc tool magazine includes a tool disc, a tool sleeve and a tool sleeve seat, the tool sleeve is distributed on the outer edge of the circumference of the tool disc through the tool sleeve seat, and the tool changing system also includes:

[0007] Two tool sleeve conveying mechanisms, each of the tool sleeve conveying mechanisms includes a mounting seat, a tool changing seat and a pushing member, one end of the mounting seat is fixed above the tool disc, the other end of the mounting seat is provided with the tool changing seat and extends out of the outside of the tool disc, the tool changing seat has a accommodating space for accommodating one tool sleeve, the pushing member is movably arranged on the mounting seat, the pushing member is used to push the tool sleeve to switch between the tool sleeve seat and the tool changing seat, and the tool sleeve pushing directions of the two tool sleeve conveying mechanisms form a first angle.

[0008] Optionally, the tool sleeves include two groups, wherein the tool sleeves in one group are arranged in one-to-one correspondence with the tool sleeves in the other group, and the two correspondingly arranged tool sleeves form a second angle with the line connecting the center of the tool disc, and the size of the second angle is the same as the size of the first angle.

[0009] Optionally, the second angle and the first angle are between 120° and 180°.

[0010] Optionally, the tool sleeve seat has a first guide structure, the tool changing seat has a second guide structure, and the tool sleeve has a sliding structure that is compatible with the first guide structure and the second guide structure, wherein the first guide structure and the second guide structure are guide protrusions, and the sliding structure is a sliding groove.

[0011] Optionally, the first guide structure on at least one of the plurality of tool holder seats can be flush with the second guide structure and a distance therebetween is smaller than a length of the sliding structure.

[0012] Optionally, the pushing member includes a first pushing portion and a second pushing portion that are arranged opposite to each other, wherein a space between the first pushing portion and the second pushing portion allows the tool sleeves on the circumference of the tool disc to pass through one by one.

[0013] Optionally, the tool changing system further comprises two tool changing mechanisms, the two tool changing mechanisms are arranged corresponding to the tool changing seats of the two tool sleeve conveying mechanisms, each of the tool changing mechanisms comprises a tool changing arm that can rotate around its own center point, and each of the two ends of the tool changing arm comprises a clamping portion;

[0014] In the tool changing state of one tool changing arm, the clamping portion at one end of the tool changing arm is located below one tool changing seat; in the tool changing state of the other tool changing arm, the clamping portion at one end of the tool changing arm is located below the other tool changing seat.

[0015] The second aspect of the embodiment of the present application provides a CNC machine tool. The CNC machine tool includes two spindles, a tool changing system as described in any of the above embodiments, and the CNC machine tool also includes a control system, wherein the control system is used to control the movement of the tool changing system and the two spindles, and the tool changing system is used to provide tools for the two spindles.

[0016] Optionally, the CNC machine tool comprises two machine tool bodies, each of which comprises a spindle box, a crossbeam, a bed and a cradle turntable;

[0017] The bed includes a base and two side plates arranged on both sides of the base, the push-out direction of the tool sleeve is parallel to the extension direction of the side plates, the crossbeam is mounted on the two side plates, the spindle box is mounted on the crossbeam, the spindle is mounted on the spindle box, and the cradle turntable is arranged on the bed and located below the spindle box;

[0018] The disc tool magazine is located below the two cross beams and at least partially between the two cross beams in the horizontal direction. The spindle boxes of the two machine tool bodies are respectively installed on the sides of the two cross beams that are away from each other.

[0019] Optionally, the beds of the two machine tool bodies are integrally formed, and each side panel is provided with a mounting groove at an end away from the disc tool magazine, the groove surface of the mounting groove is arc-shaped, and the opening of the mounting groove faces the direction away from the disc tool magazine, and the rotating shaft of the cradle turntable is installed on the side panel through the mounting groove.

[0020] The technical solution of the tool changing system in the embodiment of the present application has at least the following technical effects: the tool changing system includes a disc tool magazine and a tool sleeve conveying mechanism, the tool sleeve conveying mechanism has a pusher and a tool changing seat, the tool changing seat is located outside the tool disc, and the pusher can push the tool sleeve to switch between the tool sleeve seat of the tool disc and the tool changing seat, thereby reducing the number of times the spindle moves back and forth during the tool changing process, thereby reducing the time consumption of the tool changing process. In addition, the tool changing system includes a disc tool magazine and two tool sleeve conveying mechanisms, and the tool sleeve pushing directions of the two tool sleeve conveying mechanisms are at a first angle, so that one tool changing system can replace tools for two spindles, thereby realizing that only one tool magazine is equipped to process two workpieces in the same time period.

[0021] It is not difficult to understand that the relevant technical solutions of the CNC machine tool in the embodiment of the present application at least have the corresponding technical effects of the technical solutions of the tool changing system, which will not be repeated here.

[0022] Additional aspects and advantages of the embodiments of the present application will be partially given in the following description. Thus, some will become apparent from the following description or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a tool changing system in some embodiments of the present application;

[0024] Figure 2 It is a schematic diagram of the structure of the disc tool magazine in some embodiments of the present application;

[0025] Figure 3 It is a structural schematic diagram of the knife sleeve conveying mechanism in some embodiments of the present application;

[0026] Figure 4 This is a schematic diagram of the structure of the tool changer and the buffer in some embodiments of the present application;

[0027] FIG5( a ) is a simplified schematic diagram of a disc tool magazine and a tool sleeve conveying mechanism according to some embodiments of the present application;

[0028] FIG5( b ) is a schematic diagram of a specific situation (α=β=180°) of FIG5( a );

[0029] Figure 6 for Figure 1 A local magnified view of area A;

[0030] Figure 7 It is a schematic diagram of the structure of the pushing part in some embodiments of the present application;

[0031] Figure 8 This is a schematic diagram of the structure of the tool changing mechanism in some embodiments of the present application;

[0032] Fig. 9 This is a schematic diagram of the main structure of a CNC machine tool in some embodiments of the present application.

[0033] In the figure:

[0034] 10-disc tool magazine; 110-tool disk; 1110-disc body, 1120-support structure, 1121-support rib, 1130-tool disk seat; 120-tool sleeve, 130-tool sleeve seat, 1310-first guide structure, 1311-guide portion; 140-tool magazine mounting seat; 1410-tool magazine base plate, 1420-tool disk connecting plate, 150-first reducer;

[0035] 20 - tool changing mechanism; 210 - tool changing arm, 2110 - clamping part, 220 - second reducer.

[0036] 30-tool sleeve conveying mechanism; 310-pushing member, 3110-first pushing part, 3120-second pushing part, 3130-pushing part base, 3140-waist-shaped hole; 320-driving member; 330-mounting seat, 3310-mounting seat body, 3320-mounting plate; 340-buffer; 350-tool changing seat, 3501-accommodating space, 3510-second guide structure, 3511-guide part;

[0037] 40-tool; 50-spindle box; 60-crossbeam; 70-bed, 710-base, 720-side plate, 721-mounting slot;

[0038] α-the first angle; β-the second angle. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below.

[0040] Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, without paying creative work, drawings of other embodiments can also be obtained according to the technical solutions shown in these drawings.

[0041] It should be understood that the "plurality" mentioned herein refers to two or more than two. In the description of this application, unless otherwise specified, " / " means or, for example, "A / B" means A or B; "and / or" in this article is only a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, B exists alone, etc.

[0042] In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, expressions such as "first" or "second" are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that expressions such as "first" and "second" do not limit the quantity and execution order, and expressions such as "first" and "second" do not necessarily mean that they are different.

[0043] The "installation", "connection" and "setting" mentioned in the embodiments of the present application include direct installation / connection / setting, as well as indirect installation / connection / setting; include detachable installation / connection / setting, as well as non-detachable installation / connection / setting; include fixed installation / connection / setting, as well as movable installation / connection / setting.

[0044] See also Figures 1 to 8 The first aspect of the embodiment of the present application provides a tool changing system. Figure 1 As shown, the tool changing system includes a disc-type tool magazine 10 and two tool sleeve conveying mechanisms 30 .

[0045] See also Figure 2 The disc tool magazine 10 includes a tool disc 110, a tool sleeve 120 and a tool sleeve seat 130. The tool sleeve 120 is distributed on the outer edge of the circumference of the tool disc 110 through the tool sleeve seat 130. Figure 1 , Figure 3 as well as Figure 4 Each tool sleeve conveying mechanism 30 includes a mounting seat 330, a tool change seat 350 and a pusher 310. One end of the mounting seat 330 is fixed above the tool disc 110, and the other end of the mounting seat 330 is provided with a tool change seat 350 and extends out of the tool disc 110. The tool change seat 350 has a storage space 3501 (please refer to the description of the embodiment of the present invention) for accommodating a tool sleeve 120. Figure 4 The pusher 310 is movably disposed on the mounting seat 330 , and is used to push the tool sleeve 120 to switch between the tool sleeve seat 130 and the tool change seat 350 . The tool sleeve pushing directions of the two tool sleeve conveying mechanisms 30 form a first angle α.

[0046] In an embodiment of the present application, the tool changing system includes a disc tool magazine 10 and a tool sleeve conveying mechanism 30, the tool sleeve conveying mechanism 30 has a pusher 310 and a tool changing seat 350, and the tool changing seat 350 is located outside the tool disc 110, and the pusher 310 can push the tool sleeve 120 to switch between the tool sleeve seat 130 of the tool disc 110 and the tool changing seat 350, thereby reducing the number of spindle movements during the tool changing process, thereby improving the tool changing efficiency. In addition, the tool changing system includes a disc tool magazine 10 and two tool sleeve conveying mechanisms 30 extending to the outside of the tool disc 110 in different directions, so that one tool changing system can replace tools for two spindles. A CNC machine tool equipped with the tool changing system is expected to achieve processing of two workpieces in the same time period.

[0047] Specifically, in Figure 1 as well as Figure 2 In the embodiment, the cutter disc 110 is a circular cutter disc, and a plurality of cutter sleeve seats 130 are evenly distributed on the circumferential outer edge of the cutter disc 110, and a cutter sleeve 120 is arranged on each cutter sleeve seat 130. A cutter 40 can be stored in each cutter sleeve 120. The cutter disc 110 includes a disc body 1110, a support structure 1120, and a cutter disc seat 1130. The disc body 1110 and the cutter disc seat 1130 are connected through the support structure 1120. The support structure 1120 includes a plurality of support ribs 1121, which extend vertically upward from the outer edge of the cutter disc seat 1130 and then continue to extend upward to the outer edge of the disc body 1110 in a form of obliquely upward and outwardly divergent. The support ribs 1121 extend vertically upward and then extend obliquely upward and outwardly divergently, rather than directly extending obliquely upward and outwardly divergently, so that the area occupied by the entire disc-type tool magazine 10 can be saved within the height range of the vertically upward extension. The supporting ribs 1121 are provided with weight-reducing holes. Both sides of each supporting rib 1121 are provided with reinforcing ribs, which extend from the supporting ribs 1121 to the disk body 1110 to further improve the structural strength of the supporting structure 1120 .

[0048] exist Figure 2 In the embodiment, the disc tool magazine 10 further includes a tool magazine mounting seat 140. The tool magazine mounting seat 140 further includes a tool magazine mounting seat body, a tool magazine base plate 1410 and a tool disc connecting plate 1420. The tool disc connecting plate 1420 is located directly below the tool disc seat 1130 and the tool disc connecting plate 1420 and the tool disc seat 1130 are rotatably connected. The tool disc connecting plate 1420 and the tool magazine base plate 1410 are respectively arranged at the top and bottom of the tool magazine mounting seat body. There is an escape space between the tool disc connecting plate 1420 and the tool magazine base plate 1410 (i.e., the side of the tool magazine mounting seat body). The escape space accommodates a first reducer 150 for driving the tool disc 110 to rotate.

[0049] like Figure 1 as well as Figure 3As shown, the mounting seat 330 of each tool sleeve conveying mechanism 30 includes a mounting seat body 3310 and a mounting plate 3320. One end of the mounting seat body 3310 is mounted above the central area of ​​the cutter disc 110 through the mounting plate 3320, and the other end extends to the outside of the cutter disc 110 along the radial direction of the cutter disc 110 and is provided with a tool change seat 350. The central area of ​​the cutter disc 110 is concave downward, and the bottom of the mounting seat body 3310 rises from the mounting plate 3320 to the tool change seat 350 in a stepped manner, so that the center of gravity of the mounting seat body 3310 is relatively close to the central area of ​​the cutter disc 110, and the installation of the entire mounting seat body 3310 is more secure.

[0050] like Figure 3 As shown, each tool sleeve conveying mechanism 30 also includes a driving member 320 and a buffer 340 with a buffer head. The fixed end of the driving member 320 is connected to the mounting seat 330, and the output end of the driving member 320 is connected to the pushing member 310. The driving member 320 includes a cylinder, a hydraulic cylinder or a motor. The pushing member 310 is located between the two ends of the mounting seat 330 and can move relative to the mounting seat 330. The buffer 340 is installed on the tool change seat 350, and the buffer head is located just in front of the tool sleeve ejection direction. The setting of the buffer 340 helps to reduce the impact and noise caused by the driving member 320.

[0051] Optionally, referring to FIG. 5(a) and FIG. 5(b), in some embodiments of the present application, the knife sleeve 120 includes two groups, wherein one group of knife sleeves 120 is arranged in one-to-one correspondence with the other group of knife sleeves 120, and the two groups of knife sleeves 120 are respectively used in conjunction with two knife sleeve conveying mechanisms 30. The two correspondingly arranged knife sleeves 120 are respectively connected to the center of the knife disc 110 at a second angle β, and the size of the second angle β is the same as the size of the first angle α.

[0052] It should be noted that in FIG. 5( a) and FIG. 5( b), the direction of the arrow is the direction in which the knife sleeve is pushed out, and the number of the knife sleeves 120 is only an example. Specifically, as shown in FIG. 5( a), one group of knife sleeves 120 is numbered 01#, 02#, ... 08#, etc., and another group of knife sleeves 120 is numbered 11#, 12#, ... 18#, etc. The connecting line between the knife sleeve 120 numbered 01# and the center of the knife disc 110 and the connecting line between the knife sleeve 120 numbered 11# and the center of the knife disc 110 both form a second angle β, the connecting line between the knife sleeve 120 numbered 02# and the center of the knife disc 110 and the connecting line between the knife sleeve 120 numbered 12# and the center of the knife disc 110 both form a second angle β, and the two knife sleeves 120 arranged correspondingly respectively form a second angle β with the connecting line between the center of the knife disc 110. The size of the second angle β is the same as the size of the first angle α. Therefore, when one of the tool sleeves 120 in one group is facing the tool change seat 350 of one tool sleeve conveying mechanism 30, one of the tool sleeves 120 in the other group is also facing the tool change seat 350 of the other tool sleeve conveying mechanism 30, so that the two groups of tool sleeves 120 can be pushed out to two different tool change seats 350 at the same time. The tool changing system can replace tools for two spindles, so as to realize the processing of two workpieces in the same time period. As shown in FIG5(b), in the specific case where the first angle α and the second angle β are both 180°, the tool sleeves 120 on the tool disk 110 can be divided into two groups arranged in a one-to-one correspondence, and the connecting line of the tool change seats 350 of the two tool sleeve conveying mechanisms 30 passes through the center of the tool disk 110, and the connecting line of the two tool sleeves arranged in a one-to-one correspondence also passes through the center of the tool disk 110, so that the tool changing system can replace tools for the two spindles on both sides of the disc tool magazine 10.

[0053] Further, in some embodiments of the present application, the size of the first angle α and the size of the second angle β are between 120° and 180°, that is, the first angle α and the second angle β can take any angle value between 120° and 180° (including the two endpoint values ​​of 120° and 180°). The tool changing system is applied to two machine tool bodies (that is, one tool changing system changes the tools for the spindles of the two machine tool bodies), and the beds of the two machine tool bodies can be arranged in different orientations as needed. For example, if the worktables of the two machine tool bodies (that is, the first worktable and the second worktable) only rotate but do not move, the disc tool magazine 10 is located between the first worktable and the second worktable. In the first example, the angle between the first worktable and the second worktable and the line connecting the disc tool magazine 10 is 150°; in the second example, the angle between the first worktable and the second worktable and the line connecting the disc tool magazine 10 is 180°, that is, the first worktable, the disc tool magazine 10 and the second worktable are arranged roughly in a straight line, and the disc tool magazine 10 is located between the first worktable and the second worktable. The bed of the two machine tool bodies in the first example is more compact in a certain direction than in the second example.

[0054] Optionally, in some embodiments of the present application, Figure 6 As shown, the tool sleeve seat 130 has a first guide structure 1310, the tool change seat 350 has a second guide structure 3510, and the tool sleeve 120 has a sliding structure adapted to both the first guide structure 1310 and the second guide structure 3510, wherein the first guide structure 1310 and the second guide structure 3510 are guide protrusions, and the sliding structure is a sliding groove. Under normal conditions, the tool sleeve 120 is placed on the tool sleeve seat 130 through the first guide structure 1310; during the tool change process, the pusher 310 is used to push the tool sleeve 120 to switch between the first guide structure 1310 and the second guide structure 3510. Through the cooperation of the sliding structure with the two guide structures respectively, when there is no clamping claw to clamp the tool sleeve 120, the tool sleeve 120 can be pushed without worrying about the tool sleeve 120 falling off. The tool sleeve 120 does not have to wait to be clamped by the clamping claw before being pushed out.

[0055] Further, in some embodiments of the present application, Figure 6As shown, the first guide structure 1310 on at least one of the plurality of tool sleeve seats 130 can be flush with the second guide structure 3510 (i.e., the first guide structure 1310 on the tool sleeve seat 130 at the tool change position of the tool disc 110 can be flush with the second guide structure 3510 on the tool change seat 350), and the distance between the two is less than the length of the sliding structure. "Flush" means that the two are flush in the height direction and also in another horizontal direction perpendicular to the push-out direction of the tool sleeve 120. The two guide structures are flush, so that after the matching state of the sliding structure of the tool sleeve 120 with one of the guide structures is released, it can smoothly enter into a state of mutual matching with the other guide structure without adjustment. The distance between the two flush guide structures is smaller than the length of the sliding structure, so that the sliding structure on the knife sleeve 120 can immediately enter into a new guiding cooperation relationship with the second guide structure 3510 / first guide structure 1310 when it has not yet disengaged from the guiding cooperation with the first guide structure 1310 / second guide structure 3510, thereby preventing the knife sleeve 120 from falling when it is pushed through the space between the two guide structures.

[0056] Further, in some embodiments of the present application, Figure 6 As shown, the first guide structure 1310 and the second guide structure 3510 are respectively provided with a guide portion 1311 and a guide portion 3511 at their extended ends. The sliding structure on the knife sleeve 120 includes a groove structure, and the first guide structure 1310 and the second guide structure 3510 can be plugged into the sliding structure. The cross-sections of the guide portion 1311 of the first guide structure 1310 and the guide portion 3511 of the second guide structure 3510 gradually decrease along their own extension direction. The cooperation between the guide portion and the sliding structure is similar to the cooperation between the slider and the slide groove. The size relationship between the two is configured such that a relatively small slider cooperates with a relatively large slide groove, thereby guiding a structure similar to a slider into a structure similar to a slide groove.

[0057] Optionally, in some embodiments of the present application, Figure 7 As shown, the pushing member 310 includes a first pushing portion 3110 and a second pushing portion 3120 which are relatively arranged, wherein the space between the first pushing portion 3110 and the second pushing portion 3120 allows the tool sleeves 120 on the circumference of the tool disc 110 to pass through one by one, so that when the two pushing portions do not move or rotate, the tool sleeve 120 where the target tool is located can come into the space defined by the two pushing portions as the tool disc 110 rotates.

[0058] Specifically, the first pushing portion 3110 can be used to push the tool sleeve 120 from the tool sleeve seat 130 of the disc tool magazine 10 to the position where the tool change seat 350 is located, and the second pushing portion 3120 is used to push the tool sleeve 120 from the position where the tool change seat 350 is located back to the tool sleeve seat 130. The first pushing portion 3110 and the second pushing portion 3120 are spaced apart and distributed in the pushing direction of the tool sleeve 120, and the second pushing portion 3120 is located directly in front of the first pushing portion 3110 in the pushing direction of the tool sleeve 120. The space defined by the first pushing portion 3110 and the second pushing portion 3120 allows one tool sleeve 120 to pass through.

[0059] like Figure 7 As shown, the pusher 310 further includes a pusher base 3130, which is installed between the two ends of the mounting seat 330 and can move relative to the mounting seat 330, and the first pusher 3110 and the second pusher 3120 extend downward from the pusher base 3130. The pusher base 3130 can move to a position close to the tool changer seat 350, that is, the pusher can push the tool sleeve 120 to the position where the tool changer seat 350 is located at the farthest. The first guide structure 1310 on the tool sleeve seat 130 at the tool change position of the tool disc 110 and the second guide structure 3510 on the tool changer seat 350 have the same extension direction. The pusher base 3130 is provided with a waist-shaped hole 3140, and at least one of the first pusher 3110 and the second pusher 3120 is connected to the pusher base 3130 by the cooperation of the threaded fastener and the waist-shaped hole 3140, and the length direction of the waist-shaped hole 3140 is parallel to the direction from the first pusher 3110 to the second pusher 3120. The waist-shaped hole 3140 can increase or decrease the distance between the first pusher 3110 and the second pusher 3120 in the pushing direction of the knife sleeve 120, so as to adapt to knife sleeves 120 of different sizes.

[0060] Optionally, in some embodiments of the present application, Figure 1 as well as Figure 8 As shown, the tool changing system further includes two tool changing mechanisms 20, and the two tool changing mechanisms 20 are arranged corresponding to the tool changing seats 350 of the two tool sleeve conveying mechanisms 30, each tool changing mechanism 20 has a tool changing arm 210 that can rotate around its own center point, and each tool changing arm 210 has a clamping portion 2110 at both ends; in the tool changing state of one tool changing arm 210, the clamping portion 2110 at one end of the tool changing arm 210 is located below one tool changing seat 350; in the tool changing state of the other tool changing arm 210, the clamping portion 2110 at one end of the tool changing arm 210 is located below the other tool changing seat 350. Specifically, Figure 8 It is also shown that a second reducer 220 is installed below the tool changing arm 210 to drive the tool changing arm 210 to rotate.

[0061] A second aspect of the present application provides a CNC machine tool. Fig. 9 In some embodiments of the present application, the CNC machine tool includes two spindles and a tool changing system as described in any of the above embodiments. The CNC machine tool also includes a control system, which is used to control the movement of the tool changing system and the two spindles. The tool changing system can replace the tool 40 for the two spindles, so that two workpieces can be processed in the same time period with only one tool magazine.

[0062] Optionally, see Fig. 9 In some embodiments of the present application, the CNC machine tool includes two machine tool bodies, each of which includes a spindle box 50, a crossbeam 60, a bed 70 and a cradle turntable; the bed 70 includes a base 710 and two side panels 720 arranged on both sides of the base 710, the push-out direction of the tool sleeve 120 is parallel to the extension direction of the side panels 720, the crossbeam 60 is mounted on the two side panels 720, the spindle box 50 is installed on the crossbeam 60, the spindle is installed on the spindle box 50, the cradle turntable is arranged on the bed 70 and located below the spindle box 50; the disc tool magazine 10 is located below the two crossbeams 60 and at least partially between the two crossbeams 60 in the horizontal direction, and the spindle boxes 50 of the two machine tool bodies are respectively installed on the sides of the two crossbeams 60 that are away from each other. Since the extension direction of the side plate 720 is parallel to the direction in which the tool sleeve is pushed out, the angle between the extension directions of the adjacent side plates 720 of the two machine tool bodies can also be adjusted according to the actual situation of the entire CNC machine tool layout, thereby reducing the floor space. Preferably, the angle between the extension directions of the adjacent side plates 720 of the two machine tool bodies is between 120° and 180°. Fig. 9 The included angle of 180° between the extension directions of the adjacent side panels 720 of the two machine tool bodies is only an example. Fig. 9 The X-axis direction and the Y-axis direction are shown, while the Z-axis direction, which is not shown, is perpendicular to both the X-axis direction and the Y-axis direction. The side plates 720 extend along the Y-axis direction, and the crossbeam 60 extends along the X-axis direction. The crossbeam 60 is mounted on the side plates 720 and can move relative to the side plates 720 along the Y-axis direction. From the Z-axis direction, the disc tool magazine 10 is located below the crossbeam 60; from the Y-axis direction, the disc tool magazine 10 is also at least partially located between the two crossbeams 60. From the Y-axis direction, there is a tool changing mechanism 20 on each side of the outside of the disc tool magazine 10. From the Y-axis direction, there is a tool sleeve conveying mechanism 30 between the center of the disc tool magazine 10 and the tool changing mechanisms 20 on both sides. There is a spindle box 50 on each side of the two crossbeams 60 that are away from each other.

[0063] For further information, please refer to Fig. 9In some embodiments of the present application, the bed 70 of the two machine tool bodies is integrally formed, and each side plate 720 is provided with a mounting groove 721 at one end away from the disc tool magazine 10, the groove surface of the mounting groove 721 is arc-shaped, and the opening of the mounting groove 721 faces the direction away from the disc tool magazine 10, and the rotating shaft of the cradle turntable is installed on the side plate 720 through the mounting groove 721. Compared with the traditional installation method of the rotating shaft of the cradle turntable, the use of an open mounting groove to install the rotating shaft is more convenient to operate.

[0064] The above examples are only preferred embodiments of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A tool changing system, comprising a disc tool magazine, wherein the disc tool magazine comprises a tool disc, a tool sleeve and a tool sleeve seat, wherein the tool sleeve is distributed on the outer edge of the circumference of the tool disc through the tool sleeve seat, and wherein: The tool changing system also includes: Two tool sleeve conveying mechanisms, each of the tool sleeve conveying mechanisms includes a mounting seat, a tool changing seat and a pushing member, one end of the mounting seat is fixed above the tool disc, the other end of the mounting seat is provided with the tool changing seat and extends out of the outside of the tool disc, the tool changing seat has a accommodating space for accommodating one tool sleeve, the pushing member is movably arranged on the mounting seat, the pushing member is used to push the tool sleeve to switch between the tool sleeve seat and the tool changing seat, and the tool sleeve pushing directions of the two tool sleeve conveying mechanisms form a first angle.

2. The tool changing system according to claim 1, characterized in that: The tool sleeves include two groups, wherein the tool sleeves in one group are arranged one-to-one with the tool sleeves in the other group, and the two correspondingly arranged tool sleeves form a second angle with the line connecting the center of the tool disc, and the size of the second angle is the same as the size of the first angle.

3. The tool changing system according to claim 2, characterized in that: The size of the second angle and the size of the first angle are between 120° and 180°.

4. The tool changing system according to claim 1, characterized in that: The tool sleeve seat has a first guide structure, the tool change seat has a second guide structure, and the tool sleeve has a sliding structure that is compatible with the first guide structure and the second guide structure, wherein the first guide structure and the second guide structure are guide protrusions, and the sliding structure is a sliding groove.

5. The tool changing system according to claim 4, characterized in that: The first guide structure on at least one of the plurality of tool sleeve seats can be flush with the second guide structure, and a distance therebetween is smaller than a length of the sliding structure.

6. The tool changing system according to claim 5, characterized in that: The pushing member includes a first pushing portion and a second pushing portion that are arranged opposite to each other, wherein a space between the first pushing portion and the second pushing portion allows the knife sleeves on the circumference of the knife disc to pass through one by one.

7. The tool changing system according to any one of claims 1 to 6, characterized in that: The tool changing system further comprises two tool changing mechanisms, the two tool changing mechanisms are arranged corresponding to the tool changing seats of the two tool sleeve conveying mechanisms, each of the tool changing mechanisms comprises a tool changing arm that can rotate around its own center point, and each of the two ends of the tool changing arm comprises a clamping portion; In the tool changing state of one tool changing arm, the clamping portion at one end of the tool changing arm is located below one tool changing seat; in the tool changing state of the other tool changing arm, the clamping portion at one end of the tool changing arm is located below the other tool changing seat.

8. CNC machine tool, characterized in that, It comprises two spindles, a tool changing system as claimed in any one of claims 1 to 7, and a control system, wherein the control system is used to control the actions of the tool changing system and the two spindles, and the tool changing system is used to provide tools for the two spindles.

9. The numerically controlled machine tool according to claim 8, characterized in that: The CNC machine tool comprises two machine tool bodies, each of which comprises a spindle box, a crossbeam, a bed and a cradle turntable; The bed includes a base and two side plates arranged on both sides of the base, the push-out direction of the tool sleeve is parallel to the extension direction of the side plates, the crossbeam is mounted on the two side plates, the spindle box is mounted on the crossbeam, the spindle is mounted on the spindle box, and the cradle turntable is arranged on the bed and located below the spindle box; The disc tool magazine is located below the two cross beams and at least partially between the two cross beams in the horizontal direction. The spindle boxes of the two machine tool bodies are respectively installed on the sides of the two cross beams that are away from each other.

10. The numerically controlled machine tool according to claim 9, characterized in that: The beds of the two machine tool bodies are integrally formed, and each side panel is provided with a mounting groove at one end away from the disc tool magazine. The groove surface of the mounting groove is arc-shaped, and the opening of the mounting groove faces the direction away from the disc tool magazine. The rotating shaft of the cradle turntable is installed on the side panel through the mounting groove.

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