Automatic tool changing device

Abstract

The utility model provides an automatic tool changing device. The automatic tool changing device comprises a support, a rotating disc, a protective cover, a tool holder and a movable driving assembly. A turntable is fixedly mounted on the bracket and is driven by a motor to rotate; and a side opening is formed in the bottom of the protective cover, and the tool clamps extend out to take and place the tools. The tool clamps are arranged along the edge of the rotary disc, C-shaped jaw openings are formed in the front ends of main bodies, protrusions matched with tools are arranged on the inner surfaces of the jaw openings, notch grooves are formed in the front ends of the main bodies to form elastic parts, and the tool clamping stability is improved. A protruding edge is arranged at the position, close to the jaw, of the elastic part and used for guiding the cutter to be taken and placed. A shielding cover is rotationally installed on the protective cover and used for covering the side opening, and impurities are prevented from entering the device. A movable driving assembly is arranged below the support and comprises a base, a sliding rail, a sliding block and a driving piece, and side plates are fixed to the two sides of the base for expansion. The tool changing device is reasonable in structure, smooth in tool changing, stable in operation and capable of remarkably improving production efficiency and equipment adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tool changing device, in particular to an automatic tool changing device. BACKGROUND

[0002] In modern numerical control processing, automatic tool changing device (especially disc type tool magazine) is widely used to improve production efficiency and machining accuracy. However, the existing disc type tool magazine still has certain technical defects in practical application, especially in the aspects of tool changing and tool taking and placing, the following problems exist, which seriously affect the production efficiency and the working stability of the equipment.

[0003] The tool taking and placing action of the existing disc type tool magazine is not smooth, mainly manifested that the tool is affected by friction or collision in the taking and placing process, causing delay in the tool changing process and additional wear of the equipment. Especially in the case that the rotation speed and transmission mechanism of the tool changing system cannot be accurately controlled, the tool taking and placing process may be stuck, which requires manual intervention by the operator, increases the downtime of the equipment and reduces the production efficiency.

[0004] Therefore, the applicant specially designs an automatic tool changing device, and the case is generated. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide an automatic tool changing device, which at least solves the technical problem that the existing tool changing device has poor tool changing and tool taking and placing action, causing jam and affecting production efficiency.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The present application provides an automatic tool changing device, comprising a support, a rotating disc and a motor for driving the rotating disc are fixedly installed on the support, a protective cover is arranged on the periphery of the rotating disc, a plurality of tool holders are arranged along the edge of the rotating disc, and a side opening for the tool holder to extend out of the protective cover is formed in the bottom of the protective cover.

[0008] Wherein, the tool holder is defined as front and back direction along the radial direction of the rotating disc, the tool holder comprises a main body, the front end of the main body extending out of the rotating disc forms a C-shaped surrounding tiger mouth, the inner surface of the tiger mouth is provided with a protrusion matched with the tool, a notch groove is arranged at the front end of the main body, the notch groove forms an elastic part at the front end of the main body, and the rear end of the main body is used for fixing the rotating disc.

[0009] In a further scheme, a convex edge for guiding the tool taking and placing is fixedly arranged near the tiger mouth of the elastic part.

[0010] In a further scheme, the notch groove is in the shape of a circular arc.

[0011] In a further aspect, a shielding cover is rotatably mounted on the protective cover and is engaged with the protective cover and used to cover the side opening.

[0012] In a further aspect, a moving driving assembly is arranged below the bracket.

[0013] In a further aspect, the driving assembly comprises a base and a driving member, a sliding rail is fixedly arranged on the upper surface of the base, a sliding block is slidingly arranged on the surface of the sliding rail, a support is fixedly arranged on the upper surface of the sliding block, the support is fixedly arranged on the bracket, and the output end of the driving member is fixedly arranged on the support.

[0014] In a further aspect, the driving member comprises a cylinder.

[0015] In a further aspect, a sensor for limiting is arranged on the base.

[0016] In a further aspect, side plates for externally fixing other components are fixedly arranged on both sides of the base.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] By uniformly arranging a plurality of tool holders on the edge of the turntable, and optimizing the shape and function of the tool holder, such as the C-shaped structure of the tiger mouth and the convex surface inside the tiger mouth, the accurate positioning and smooth operation of the tool during clamping and releasing are ensured, the jamming phenomenon during tool changing is significantly reduced, and the efficiency of tool changing is improved. The front end of the tool holder main body is provided with a notch groove to form a elastic part, so that it has stronger elasticity and adaptability. The tool holder can adapt to tools of different sizes and shapes, increases the stability of tool fixing, and effectively avoids the problem of decreased machining precision caused by loose tools or unstable clamping.

[0019] The specific implementation manner of the utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Among them:

[0021] Figure 1 is the overall structure of the utility model Figure 1 ;

[0022] Figure 2 is the overall structure of the utility model Figure 2 ;

[0023] Figure 3 is the overall structure of the utility model Figure 3 ;

[0024] Figure 4It is the whole structure schematic diagram of the knife holder of the utility model.

[0025] Figure 5 It is the whole structure schematic diagram of the convex drive assembly of the utility model.

[0026] Label explanation:

[0027] 1, support; 2, motor; 3, rotary table; 4, protective cover; 41, side opening; 5, knife holder; 51, main body; 52, tiger mouth; 53, notch groove; 54, elastic part; 55, convex edge; 56, protrusion; 6, shielding cover; 7, drive assembly; 71, base; 72, slide rail; 73, sliding block; 74, support; 75, driving piece; 8, sensor; 9, side plate. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clear and obvious, the utility model is further described in detail in the following with reference to the drawings and examples.It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] As Figure 1 described, the application provides an automatic tool changer, which is optimized in structure design and function improvement, aiming at solving the problems of poor tool changing and tool taking and placing in the prior art, so as to improve production efficiency and improve the reliability of the device.

[0030] The device comprises a support 1 for supporting the overall structure, the support 1 is fixedly installed with a rotary table 3, the rotary table 3 is driven to realize rotary motion by a motor 2, so as to facilitate the selection and replacement of tools.A protective cover 4 is arranged around the outer periphery of the rotary table 3, which is used to protect the tools and internal mechanical structure, and prevent external impurities or dust from entering the interior.The bottom of the protective cover 4 is provided with a side opening 41, the size of the side opening 41 is adapted to the extension position of the knife holder 5, so as to ensure that the tools can be smoothly taken and placed.A plurality of knife holders 5 are arranged on the edge of the rotary table 3 along the circumferential direction, each knife holder 5 is used to fix the tools, and the structure design is to ensure the stability and smoothness of the tools during the taking and placing process.

[0031] As Figure 3 and Figure 4As shown, the front end of the main body 51 of the tool holder 5 forms a C-shaped encircling tiger mouth 52, and the inner surface of the tiger mouth 52 is provided with a protrusion 56 that matches the shape of a specific part of the tool, thereby achieving stable clamping of the tool. The front end of the tool holder 5 is provided with a notched groove 53 designed in a circular arc shape, which functions to impart a certain elasticity to the tiger mouth 52, enabling the tool holder 5 to adapt to tools of different sizes when clamping the tool, while reducing friction during the picking and placing process and improving the smoothness of operation. In addition, a convex edge 55 is fixedly arranged on the inner side of the tiger mouth 52 near the opening, and the function of the convex edge 55 is to guide the tool into the tiger mouth 52. Especially in automated operation, the convex edge 55 can effectively prevent the tool from deviating or jamming in the tiger mouth 52, thereby improving the accuracy and efficiency of tool changing.

[0032] As shown in Figure 1 and Figure 2 To further optimize the protection function of the device, a shielding cover 6 is rotatably installed on the outer side of the protective cover 4. The shielding cover 6 fits with the side opening 41 of the protective cover 4, and when the tool does not need to be replaced, the shielding cover 6 can close the side opening 41 through the rotating shaft, effectively blocking external dust or debris from entering the interior of the device. Especially in harsh processing environments, this design can greatly improve the durability of the device and the cleanliness of the tool. In addition, the opening and closing of the shielding cover 6 is automatically controlled by the control system and is linked with the picking and placing action of the tool, avoiding the delay of human intervention and improving the overall automation level.

[0033] As shown in Figure 3 and Figure 5 To realize the moving function of the tool changing device, a moving drive assembly 7 is arranged below the bracket 1. The tool changing device can adjust its position in the working area to adapt to different processing requirements, improve the flexibility and adaptability of the device, reduce the time of repeated equipment setup, and improve production efficiency.

[0034] The assembly is composed of a base 71, a sliding rail 72, a sliding block 73, and a driving member 75. The base 71 provides stable support, the sliding rail 72 is fixedly installed on the surface of the base 71, the sliding block 73 can slide along the sliding rail 72, and the upper surface of the sliding block 73 is fixedly provided with a support 74 connected with the bracket 1. The driving member 75 is connected with the support 74 through the output end, for example, a cylinder is used as the driving member 75, which can drive the bracket 1 to move along the sliding rail 72 through the extension and retraction movement of the cylinder. The cylinder provides stable and controllable linear motion, ensuring smooth movement and sensitive action of the bracket 1. The cylinder drive has high efficiency and economy, is easy to maintain, and can provide high load capacity.

[0035] As shown in Figure 5As shown, the sliding path of the slider 73 on the slide rail 72 is monitored in real time by the sensor 8 installed on the base 71 for detecting the current position of the slider 73 and providing limit protection. For example, when the slider 73 approaches both ends of the slide rail 72, the sensor 8 will trigger an alarm signal to avoid overtravel of the slider 73 or impact damage to other components.

[0036] In addition, to enhance the expansion capability of the device, side plates 9 are fixedly arranged on both sides of the base 71, and a plurality of threaded holes are designed on the side plates 9 for mounting additional functional components such as a tool storage box or a connection assembly with other equipment. This expansion design significantly improves the adaptability and flexibility of the device, enabling functional adjustments according to different processing needs.

[0037] In summary, through the meticulous optimization of the shape of the tool holder 5, the elastic part 54, and the convex edge 55, as well as the protective improvement of the protective cover 4 and the shielding cover 6, the application solves the problems of jamming and low efficiency caused by poor tool taking and placing actions in the prior art. At the same time, through the design of the moving drive assembly 7, the tool changer device achieves flexible positioning within the machining area, and through the intelligent sensor 8 detection and control, the automation and safety of the device are improved. The expansion function of the side plate 9 further improves the adaptability of the device, enabling it to meet more extensive industrial needs. The application has applicability in structure design and function application.

[0038] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned manner. Various non-essential improvements using the method concept and technical solution of the utility model, or direct application of the concept and technical solution of the utility model to other occasions without improvement, are all within the protection scope of the utility model.

Claims

1. An automatic tool changer, characterized by The utility model provides a kind of cutting tool automatic loading and unloading device, including support (1), the rotary table (3) is fixedly installed on the support (1) and is provided with motor (2) of driving the rotary table (3), the rotary table (3) is provided with protective cover (4) in periphery, the rotary table (3) is arranged with several knife holder (5) along edge in periphery, the bottom of the protective cover (4) is opened with side opening (41) for the knife holder (5) to extend the protective cover (4); Wherein, the knife holder (5) is defined as front-back direction along the radial direction of the rotary table (3), the knife holder (5) includes main body (51), the front end of the main body (51) that extends out of the rotary table (3) forms C-shaped surrounding tiger mouth (52), the inner surface of the tiger mouth (52) is convex with the convex (56) of adapting tool, the main body (51) front end is provided with notch groove (53), the notch groove (53) forms the elastic part (54) of the main body (51) front end, the rear end of the main body (51) is used to fix on the rotary table (3).

2. The automatic tool changer according to claim 1, characterized in that The elastic part (54) is fixedly provided with convex edge (55) for guiding tool pick-and-place near the tiger mouth (52).

3. The automatic tool changer of claim 2, wherein The notch groove (53) is circular arc.

4. The automatic tool changer of claim 1, wherein The protective cover (4) is rotatably installed with the shielding cover (6) that is combined with the protective cover (4) and is used for covering the side opening (41).

5. The automatic tool changer of claim 1, wherein The support (1) is provided with a moving drive assembly (7) below the support (1).

6. The automatic tool changer of claim 5, wherein: The drive assembly (7) includes a base (71) and a drive member (75), the upper surface of the base (71) is fixedly provided with a slide rail (72), the surface of the slide rail (72) is slidably provided with a sliding block (73), the upper surface of the sliding block (73) is fixedly provided with a support (74), the support (74) is fixedly provided on the support (1), and the output end of the drive member (75) is fixed on the support (74).

7. The automatic tool changer according to claim 6, characterized in that The drive member (75) includes a pneumatic cylinder.

8. The automatic tool changer according to claim 7, characterized in that The base (71) is provided with a sensor (8) for limiting.

9. The automatic tool changer of claim 8, wherein, The base (71) is fixedly provided with a side plate (9) on both sides for external fixation of other components.

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