Rotary tool changing frame of numerical control machine tool

Abstract

The utility model relates to the technical field of numerically-controlled machine tool accessories, and discloses a numerically-controlled machine tool rotating type tool changing frame which comprises a wheel disc, the bottom side of the wheel disc is connected with a rotating frame through a stabilizing assembly, the front side of the wheel disc is fixedly connected with a plurality of containing sleeves, and the containing sleeves surround the front side of the wheel disc with the front side of the wheel disc as the center. An auxiliary shaft is fixedly connected to the center of the front side of the wheel disc, an abutting wheel is fixedly connected to the outer wall of the auxiliary shaft, a second motor is installed in the wheel disc, the driving end of the second motor is fixedly connected to the rear end of the auxiliary shaft, a through groove is formed in the side, close to the abutting wheel, of the containing sleeve, and an abutting assembly is arranged in the through groove. The abutting assembly is connected with the front side of the wheel disc through a reset assembly. According to the utility model, the abutting and fixing of the cutter can be relieved more conveniently, so that the cutter can be stored and taken more quickly, the cutter replacement efficiency of the numerical control machine tool is improved, and the working speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tool accessories, in particular to a rotary tool changer for a numerical control machine tool. Background Art

[0002] CNC machine tools are machine tools that use computer programs to control movement and processing. Compared with traditional manual or semi-automatic machine tools, CNC machine tools have a higher degree of automation and precision. CNC machine tool tool changers are devices used to automatically change tools. They can improve processing efficiency and reduce manual intervention. They are particularly suitable for CNC processing processes that require frequent tool changes.

[0003] In the prior art, in order to fix the tool firmly, the tool holder is usually equipped with a clamping structure to prevent the tool from falling out. This also makes it difficult for the tool to be removed from the tool holder when it is clamped and fastened, thus affecting the efficiency of tool replacement.

[0004] Therefore, in view of the problem that the existing rotary tool changer for CNC machine tools over-clamps and fixes the tool, making it difficult for the tool to be removed, a rotary tool changer for CNC machine tools that solves the above problem is needed. Utility Model Content

[0005] In order to solve the problem in the prior art that the tool is over-clamped and fixed by the tool changer, resulting in the tool being difficult to detach and remove, the present application provides a rotary tool changer for a CNC machine tool.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rotary tool changer for a CNC machine tool comprises a wheel disc, the bottom side of the wheel disc is connected to a rotating frame via a stabilizing component, a plurality of placement sleeves are fixedly connected to the front side of the wheel disc, the plurality of placement sleeves surround the front side of the wheel disc with the front center of the wheel disc, a secondary shaft is fixedly connected to the front center of the wheel disc, an abutment wheel is fixedly connected to the outer wall of the secondary shaft, a second motor is installed inside the wheel disc, a driving end of the second motor is fixedly connected to the rear end of the secondary shaft, a through groove is provided on the side of the placement sleeve close to the abutment wheel, a tightening component is arranged inside the through groove, the tightening component is connected to the front side of the wheel disc via a reset component, a driving component is installed at the rear end of the rotating frame, and a limiting component is arranged on the outer periphery of the rear side of the wheel disc.

[0008] As a further improvement of the utility model, the clamping assembly includes a clamping member, which is arranged on a side of the through slot close to the abutment wheel, and the side of the clamping member close to the abutment wheel is fixedly connected with an abutment member, and the abutment member abuts against the adjacent side of the abutment wheel.

[0009] As a further improvement of the present invention, the reset assembly includes a sliding rod and a sliding groove, the sliding rod is arranged on the side close to the abutment wheel and the secondary shaft, the rear side of the sliding rod is fixedly connected to the front side of the wheel disc, the sliding groove is opened on the front side of the wheel disc, the sliding groove is located on the rear side of the sliding rod, the sliding rod and the sliding groove are connected by a sliding piece, the front side of the sliding piece is fixedly connected to the rear side of the abutment piece, and a spring is arranged on the side of the sliding piece close to the secondary shaft, and the spring is sleeved on the outer wall of the sliding rod.

[0010] As a further improvement of the utility model, one end of the slide is slidably connected to the outer wall of the slide rod, and the other end of the slide is slidably connected to the inside of the slide groove.

[0011] As a further improvement of the present invention, the limit assembly includes an electric push rod, the outer wall of which is fixedly connected to the left side of the rear end of the rotating frame through a frame body, a limit slot is opened on the outer periphery of the rear side of the wheel disc, the driving end of the electric push rod is fixedly connected with a clamp, the outer walls of the limit slot and the clamp are both provided with gears, and the limit slot and the clamp are connected through the gears.

[0012] As a further improvement of the utility model, the driving assembly includes a motor 1, the outer wall of which is fixedly connected to the upper rear side of the rotating frame through a bracket, the driving end of the motor 1 is fixedly connected to a main shaft, and the front end of the main shaft is fixed on the rear center of the wheel disc.

[0013] As a further improvement of the utility model, the stabilizing assembly includes a sliding groove, which is opened on the top side of the front end of the rotating frame. A sliding ring is fixedly connected to the outer periphery of the outer wall of the wheel disc, and the wheel disc is slidably connected to the sliding groove through the sliding ring.

[0014] As a further improvement of the present invention, a smooth concave-convex structure is provided on the outer periphery of the abutment wheel.

[0015] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0016] 1. In the utility model, through the cooperation of the clamping assembly, the abutment wheel and the reset assembly, the tool can be firmly clamped and fixed, and the clamping and fixation of the tool can be released more conveniently, thereby making the storage and access of the tool faster, so as to improve the efficiency of tool replacement of the CNC machine tool, thereby increasing the working speed.

[0017] 2. In the utility model, through the mutual cooperation of the electric push rod, the clamping member and the limit slot, the wheel disc can be limited during the process of replacing the tool to prevent the wheel disc from rotating, so that the tool picking process is more stable, thereby improving the work accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an axonometric view of a rotary tool changer for a CNC machine tool proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the position of a limit slot of a rotary tool changer for a CNC machine tool proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the position of the motor 2 of the rotary tool changer of a CNC machine tool proposed by the utility model;

[0021] Figure 4 This is a structural schematic diagram of an abutment member and an abutment wheel of a rotary tool changer for a CNC machine tool proposed by the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the position of a slideway of a rotary tool changer for a CNC machine tool.

[0023] Legend:

[0024] 1. Wheel disc; 2. Rotating frame; 3. Placement sleeve; 4. Fastening member; 5. Abutment member; 6. Secondary shaft; 7. Abutment wheel; 8. Motor 1; 9. Main shaft; 10. Motor 2; 11. Slide rod; 12. Slide member; 13. Slide groove; 14. Spring; 15. Electric push rod; 16. Clamp; 17. Limiting clamping groove; 18. Sliding groove; 19. Sliding ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] Reference Figure 1-5A rotary tool changer for a numerically controlled machine tool comprises a wheel disc 1, a rotating frame 2 is connected to the bottom side of the wheel disc 1 through a stabilizing component, a plurality of placement sleeves 3 are fixedly connected to the front side of the wheel disc 1, and the plurality of placement sleeves 3 surround the front side of the wheel disc 1 with the front center of the wheel disc 1, a secondary shaft 6 is fixedly connected to the front center of the wheel disc 1, and an abutting wheel 7 is fixedly connected to the outer wall of the secondary shaft 6, a motor 10 is installed inside the wheel disc 1, and a driving end of the motor 10 is fixedly connected to the rear end of the secondary shaft 6, a through groove is provided on one side of the placement sleeve 3 close to the abutting wheel 7, and a tightening component is arranged inside the through groove, and the tightening component is connected to the wheel disc 1 through a reset component. The front side of the disk 1 is connected, the rear end of the rotating frame 2 is equipped with a driving assembly, and the outer periphery of the rear side of the wheel disc 1 is provided with a limiting assembly; the driving assembly includes a motor 8, the outer wall of the motor 8 is fixedly connected to the upper rear side of the rotating frame 2 through a bracket, the driving end of the motor 8 is fixedly connected to a main shaft 9, and the front end of the main shaft 9 is fixed to the rear center of the wheel disc 1; the stabilizing assembly includes a sliding groove 18, the sliding groove 18 is opened on the top side of the front end of the rotating frame 2, the outer periphery of the outer wall of the wheel disc 1 is fixedly connected to a sliding ring 19, and the wheel disc 1 is slidably connected to the sliding groove 18 through the sliding ring 19;

[0033] Specifically, a device for storing and retrieving tools from the tool holder is installed on the outside of the tool changer. The sliding ring 19 on the outer wall of the wheel disc 1 slides in the sliding groove 18 on the rotating frame 2, so that the wheel disc 1 can have a more stable support, reduce the shaking during work, and thus improve the work accuracy. The placement sleeve 3 is used to place tools of various specifications. When the CNC machine tool needs to replace the tool, the driving end of the motor 8 drives the spindle 9 to rotate a certain angle, and then the spindle 9 drives the wheel disc 1 connected to the front side and the structure on the front side of the wheel disc 1 to rotate, and then the tool is selected.

[0034] The abutting assembly includes a abutting member 4, which is arranged on the side of the through slot close to the abutting wheel 7, and the abutting member 5 is fixedly connected to the side of the abutting member 4 close to the abutting wheel 7, and the abutting member 5 abuts against the adjacent side of the abutting wheel 7; the reset assembly includes a slide bar 11 and a slide groove 13, the slide bar 11 is arranged on the adjacent side of the abutting wheel 7 and the secondary shaft 6, the rear side of the slide bar 11 is fixedly connected to the front side of the wheel disc 1, and the slide groove 13 is opened on the front side of the wheel disc 1. Located at the rear side of the slide bar 11, the slide bar 11 and the slide groove 13 are connected by a slide 12, the front side of the slide 12 is fixedly connected to the rear side of the abutment 5, and a spring 14 is arranged on the side of the slide 12 close to the secondary shaft 6, and the spring 14 is sleeved on the outer wall of the slide bar 11; one end of the slide 12 is slidably connected to the outer wall of the slide bar 11, and the other end of the slide 12 is slidably connected to the inside of the slide groove 13; the outer periphery of the abutment wheel 7 is provided with a smooth concave-convex structure;

[0035] Specifically, the abutting member 4 is used to abut the tool in the placement sleeve 3 through the through slot, and a protrusion for increasing the abutment is provided on the inner side of the abutting member 4. The abutting member 4 is normally located at the through slot, and at this time, the position of the slide 12 connected to the abutting member 5 will stretch and pull the spring 14. The slide groove 13 is used to stabilize the sliding of the slide 12, and the other end of the slide 12 is located in the slide groove 13, so that the slide 12 can slide stably on the slide rod 11. By rotating the driving end of the motor 2 10, the driven secondary shaft 6 drives the abutment wheel 7 to rotate, and the position of the raised structure on the outer periphery of the abutment wheel 7 is changed. The part of the abutment member 5 abutting against the abutment wheel 7 is an arc structure, so that the arc structure of the abutment member 5 follows the displacement of the raised structure, loses the abutment of the raised structure, and slides into the recessed structure, so that the stretched spring 14 loses the traction of the slide 12 connected to the abutment member 5 when the abutment member 5 is abutted, thereby resetting, pulling the slide 12 to move on the slide rod 11 in the direction of the abutment wheel 7, thereby driving the abutment member 5 together with the clamping member 4 to move, thereby releasing the clamping of the clamping member 4 on the tool in the placement sleeve 3.

[0036] Embodiment 2:

[0037] As one of the optimized structural designs for Example 1, Figure 1 As shown in FIG. 4 , the limit assembly includes an electric push rod 15, the outer wall of which is fixedly connected to the left side of the rear end of the rotating frame 2 through a frame body, a limit slot 17 is provided on the outer periphery of the rear side of the wheel disc 1, a clamping member 16 is fixedly connected to the driving end of the electric push rod 15, and the outer walls of the limit slot 17 and the clamping member 16 are both provided with gears, and the limit slot 17 and the clamping member 16 are connected through the gears;

[0038] Specifically, the number of teeth on the limit slot 17 is greater than the number of teeth on the clamp 16, so that the limit slot 17 can be clamped and limited by the clamp 16 in any case. The clamp 16 is pushed into the limit slot 17 by the electric push rod 15, and the teeth of the clamp 16 and the limit slot 17 are mutually engaged, so that the wheel disc 1 can be limited when the external device accesses the tool, and the wheel disc 1 is prevented from rotating, so that the tool taking process is more stable, so as to improve the working accuracy.

[0039] Working principle: When the CNC machine tool needs to replace the tool, the driving end of the motor 8 drives the main shaft 9 to rotate at a certain angle, and then the main shaft 9 drives the wheel disc 1 connected to the front side and the structure on the front side of the wheel disc 1 to rotate, and then the tool is selected. After the rotation stops, the driving end of the motor 2 10 rotates, and the driving secondary shaft 6 drives the abutment wheel 7 to rotate, and the position of the convex structure on the outer periphery of the abutment wheel 7 is changed, so that the arc structure of the abutment member 5 follows the displacement of the convex structure, loses the abutment of the convex structure, and slides into the concave structure, so that the stretched spring 14 loses the traction of the slide 12 connected to the abutment member 5 when the abutment member 5 is abutted, thereby resetting and pulling the slide Component 12 is displaced on the slide bar 11 in the direction of the abutment wheel 7, thereby driving the abutment member 5 together with the clamping member 4 to be displaced, thereby releasing the clamping member 4 from the tool placed in the sleeve 3. At the same time, the electric push rod 15 pushes the clamping member 16 into the limiting slot 17, and the clamping member 16 and the teeth of the limiting slot 17 are mutually engaged, thereby preventing the wheel 1 from rotating, making the tool taking process more stable. Subsequently, the external equipment accesses the tool to the tool holder, and the driving end of the motor 10 rotates again, driving the secondary shaft 6 to drive the abutment wheel 7 to rotate, and the position of the raised structure on the outer periphery of the abutment wheel 7 is changed, and the abutment member 5 sliding along the recessed structure will be abutted by the raised structure again, so that the clamping member 4 is reset.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary tool changer for a numerically controlled machine tool, comprising a wheel disc (1), characterized in that: The bottom side of the wheel disc (1) is connected to a rotating frame (2) via a stabilizing component. A plurality of placement sleeves (3) are fixedly connected to the front side of the wheel disc (1). The plurality of placement sleeves (3) surround the front side of the wheel disc (1) with the front center of the wheel disc (1). A secondary shaft (6) is fixedly connected to the front center of the wheel disc (1). An abutment wheel (7) is fixedly connected to the outer wall of the secondary shaft (6). A second motor (10) is installed inside the wheel disc (1). The driving end of the second motor (10) is fixedly connected to the rear end of the secondary shaft (6). A through groove is provided on a side of the placement sleeve (3) close to the abutment wheel (7). A tightening component is provided inside the through groove. The tightening component is connected to the front side of the wheel disc (1) via a reset component. A driving component is installed at the rear end of the rotating frame (2). A limiting component is provided on the outer periphery of the rear side of the wheel disc (1).

2. The rotary tool changer for a CNC machine tool according to claim 1, characterized in that: The abutting assembly comprises a abutting member (4), wherein the abutting member (4) is arranged on a side of the through slot close to the abutting wheel (7), and the side of the abutting member (4) close to the abutting wheel (7) is fixedly connected to an abutting member (5), and the abutting member (5) abuts against a side of the abutting wheel (7).

3. The rotary tool changer for a CNC machine tool according to claim 2, characterized in that: The reset assembly comprises a slide bar (11) and a slide groove (13); the slide bar (11) is arranged on a side close to the abutment wheel (7) and the secondary shaft (6); the rear side of the slide bar (11) is fixedly connected to the front side of the wheel disc (1); the slide groove (13) is opened on the front side of the wheel disc (1); the slide groove (13) is located on the rear side of the slide bar (11); the slide bar (11) and the slide groove (13) are connected by a slide member (12); the front side of the slide member (12) is fixedly connected to the rear side of the abutment member (5); a spring (14) is arranged on the side of the slide member (12) close to the secondary shaft (6); and the spring (14) is sleeved on the outer wall of the slide bar (11).

4. The rotary tool changer for a CNC machine tool according to claim 3, characterized in that: One end of the sliding member (12) is slidably connected to the outer wall of the sliding rod (11), and the other end of the sliding member (12) is slidably connected to the inside of the sliding groove (13).

5. The rotary tool changer for a CNC machine tool according to claim 1, characterized in that: The limit assembly comprises an electric push rod (15), the outer wall of which is fixedly connected to the left side of the rear end of the rotating frame (2) through a frame body, a limit slot (17) is provided on the outer periphery of the rear side of the wheel disc (1), a driving end of the electric push rod (15) is fixedly connected to a clamping member (16), the outer walls of the limit slot (17) and the clamping member (16) are both provided with gears, and the limit slot (17) and the clamping member (16) are connected via the gears.

6. The rotary tool changer for a CNC machine tool according to claim 1, characterized in that: The driving assembly comprises a motor 1 (8), the outer wall of which is fixedly connected to the upper rear side of the rotating frame (2) via a bracket, the driving end of the motor 1 (8) is fixedly connected to a main shaft (9), and the front end of the main shaft (9) is fixed to the rear center of the wheel disc (1).

7. The rotary tool changer for a CNC machine tool according to claim 1, characterized in that: The stabilizing component comprises a sliding groove (18), the sliding groove (18) being opened on the top side of the front end of the rotating frame (2), a sliding ring (19) being fixedly connected to the outer periphery of the outer wall of the wheel disc (1), and the wheel disc (1) being slidably connected to the sliding groove (18) via the sliding ring (19).

8. The rotary tool changer for a CNC machine tool according to claim 1, characterized in that: The outer circumference of the abutment wheel (7) is provided with a smooth concave-convex structure.

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