Tool holder with quick change chuck

Abstract

This utility model relates to the field of machining technology, specifically a tool holder with a quick-change chuck. It includes a clamping disc for fixing the tool, an outer ring seat on the outer wall of the clamping disc, and the outer ring seat and the clamping disc being integrally formed. Several movable chucks arranged in a ring at equal intervals are mounted on the top surface of the clamping disc. In this utility model, the several movable chucks arranged in a ring at equal intervals on the top surface of the clamping disc can achieve multi-point fixing of the tool. Guide grooves, the same number and corresponding in position as the movable chucks, are opened on the top surface of the clamping disc, providing precise guidance for the movement of the movable chucks. Guide slides, whose cross-sectional dimensions are adapted to and slidably fitted with the guide grooves, are installed at the bottom of each group of movable chucks, ensuring the stability of the movable chucks during movement. Connecting screw holes and positioning bolts on the top surface of the guide slides allow the movable chucks to be firmly fixed to the guide slides.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a tool holder with a quick-change chuck. Background Technology

[0002] In modern machining, tool fixtures, as key components connecting machine tools and cutting tools, directly affect machining accuracy, efficiency, and tool life. With the continuous development of the manufacturing industry, higher demands are placed on machining flexibility and rapid changeover. Traditional tool fixtures are gradually revealing many shortcomings when dealing with diverse, small-batch production models. Different types and sizes of cutting tools have different fixture adaptation requirements. Traditional tool fixtures have relatively fixed structures and can usually only accommodate specific tool specifications. When changing tools to machine workpieces of different shapes or sizes, existing traditional tool fixtures may not provide a suitable fixing method, leading to frequent fixture changes or complex adjustments, increasing production preparation time and costs. Utility Model Content

[0003] The purpose of this invention is to provide a tool holder with a quick-change chuck to solve the problem of poor adaptability of existing tool holders mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A tool holder with a quick-change chuck includes a clamping disc for fixing the tool, the outer wall of the clamping disc is provided with an outer ring seat, the outer ring seat and the clamping disc are integrally formed, and a plurality of movable chucks are installed on the top surface of the clamping disc in a uniform and equidistant ring arrangement.

[0006] The top surface of the clamping plate is provided with guide grooves that are the same number as and corresponding in position to the movable chucks;

[0007] Each set of movable chucks has a guide slide seat installed at the bottom that is adapted to the cross-sectional size of the guide slide and is slidably engaged. The top surface of the guide slide seat has at least two sets of connecting screw holes. The top surface of the movable chuck is equipped with a chuck head for fixing the tool. The top surface of the chuck head is equipped with positioning bolts that are the same number and size as the connecting screw holes and are threadedly connected.

[0008] Preferably, the number of movable chucks and guide grooves is at least three sets, so that the fixing points of the clamping disc for the tool are more evenly distributed. This allows clamping force to be applied to the tool from multiple directions, enhancing the stability and reliability of tool fixing, effectively preventing tool loosening or displacement during machining, and improving machining accuracy.

[0009] Preferably, the outer ring seat is equipped with servo motors that are the same number and position as the guide slides. Each set of servo motors has a lead screw connected to its output shaft. The servo motors can precisely control the speed and direction of rotation. By connecting with the lead screw, they provide a precise and stable power source for the movement of the movable chuck, which facilitates the quick adjustment of the movable chuck's position according to the size of different tools, thereby improving tool changing efficiency and ease of operation.

[0010] Preferably, the lead screw and the guide slide are threaded together, so that the rotational motion of the lead screw can be efficiently converted into the linear motion of the guide slide. This transmission method has self-locking properties, which ensures that the movable chuck remains stable after moving to the designated position and will not move arbitrarily due to external forces, thus ensuring the accuracy of tool fixing.

[0011] Preferably, bearings for fixing the lead screw are embedded on the inner walls of both ends of the guide groove. The bearings provide stable support and rotational guidance for the lead screw. This reduces the frictional resistance during lead screw rotation, making the lead screw rotate more smoothly, while ensuring the coaxiality of the lead screw during rotation, thus improving transmission accuracy and the service life of the lead screw.

[0012] Preferably, the side of the chuck that contacts the cutting tool is provided with a vibration damping pad, which can effectively absorb and buffer the vibration generated during machining. When the cutting tool rotates at high speed or cuts, vibration can easily affect machining accuracy and tool life. The presence of the vibration damping pad can reduce the impact of vibration on the cutting tool and machining process, thereby improving machining quality.

[0013] Preferably, the shock-absorbing pad is a rubber pad with a thickness of 1-3mm. Rubber pads are used because rubber has good elasticity and shock absorption performance. A thickness of 1-3mm can provide sufficient shock absorption without affecting the clamping force of the chuck on the tool due to excessive thickness. This ensures the shock absorption function while maintaining the stability of the tool fixation.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: In this tool holder with a quick-change chuck, the outer ring seat and the fixture plate are integrally formed, enhancing the stability of the overall structure; several movable chucks arranged in a ring at equal intervals on the top surface of the fixture plate can achieve multi-point fixation of the tool; the guide grooves on the top surface of the fixture plate, which are the same number and corresponding in position as the movable chucks, provide precise guidance for the movement of the movable chucks; the guide slides installed at the bottom of each set of movable chucks, which are adapted to the cross-sectional dimensions of the guide slides and slide in a sliding fit, ensure the stability of the movable chucks during movement; the at least two sets of connecting screw holes on the top surface of the guide slides, and the positioning bolts on the top surface of the movable chucks, which are the same number and size as the connecting screw holes and threadedly connected, enable the movable chucks to be firmly fixed on the guide slides, and then the chuck head installed on the top surface of the movable chucks for fixing the tool achieves reliable fixation of the tool. The overall structure realizes quick switching and stable installation of the tool holder. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0019] 10. Fixture plate; 11. Guide groove; 12. Lead screw; 13. Bearing;

[0020] 20. Outer ring seat; 21. Servo motor;

[0021] 30. Movable chuck; 31. Chuck head; 32. Positioning bolt; 33. Guide slide; 34. Connecting screw hole; 35. Shock-absorbing pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Tool holders with quick-change chucks, such as Figures 1-3 As shown, the fixture includes a clamping disc 10 for fixing a cutting tool. The outer wall of the clamping disc 10 has an outer ring seat 20, which is integrally formed with the clamping disc 10. Several movable chucks 30 arranged in a ring at equal intervals are mounted on the top surface of the clamping disc 10. The top surface of the clamping disc 10 has guide grooves 11, the same number and corresponding in position as the movable chucks 30. Each set of movable chucks 30 has a guide slide 33 at its bottom, which is compatible with the cross-sectional dimensions of the guide groove 11 and slides within it. The top surface of the guide slide 33 has at least two sets of connecting screw holes 34. A chuck head 31 for fixing the cutting tool is mounted on the top surface of the movable chucks 30. The top surface of the chuck head 31 has positioning bolts 32, the same number and size as the connecting screw holes 34, and threadedly connected. The integral formation of the outer ring seat 20 with the clamping disc 10 enhances the stability of the overall structure. Several movable chucks 30 arranged in a ring at uniform intervals can achieve multi-point fixation of the cutting tool; the guide grooves 11 on the top surface of the clamping plate 10, which are the same number and corresponding in position as the movable chucks 30, provide precise guidance for the movement of the movable chucks 30; the guide slides 33 installed at the bottom of each set of movable chucks 30, which are adapted to the cross-sectional dimensions of the guide grooves 11 and are slidably engaged, ensure the stability of the movable chucks 30 during movement; the at least two sets of connecting screw holes 34 on the top surface of the guide slides 33, and the positioning bolts 32 on the top surface of the movable chucks 30, which are the same number and adapted in size as the connecting screw holes 34 and are threadedly connected, enable the movable chucks 30 to be firmly fixed on the guide slides 33, and then the chucks 31 installed on the top surface of the movable chucks 30 for fixing the cutting tool are used to achieve reliable fixation of the cutting tool. The overall structure realizes the rapid switching and stable installation of the cutting tool clamp.

[0025] It is worth noting that the number of movable chucks 30 and guide grooves 11 is at least three sets, which makes the clamping disc 10 fix the tool more evenly and stably, and enhances the fixing effect.

[0026] Furthermore, the outer ring seat 20 is equipped with servo motors 21 that are the same number and position as the guide slide 11. Each set of servo motors 21 has a lead screw 12 connected to its output shaft, which can provide power for the movement of the movable chuck 30 and realize automated control.

[0027] Specifically, the lead screw 12 is threadedly connected to the guide slide 33, and bearings 13 for fixing the lead screw 12 are embedded on the inner walls of both ends of the guide slide 11, so that the lead screw 12 can rotate stably, thereby driving the guide slide 33 and the movable chuck 30 to move smoothly.

[0028] In addition, a shock-absorbing pad 35 is provided on the side of the chuck 31 that contacts the tool. The shock-absorbing pad 35 is made of rubber and has a thickness of 1-3mm, which can effectively reduce the vibration of the tool during fixing and use, and protect the tool and the fixture.

[0029] The working principle of this tool holder with a quick-change chuck:

[0030] First, select a suitable movable chuck 30 and chuck 31 according to the size and shape of the tool. This step is the basis for ensuring that the tool can be effectively fixed. Then, install the movable chuck 30 onto the fixture plate 10. The guide slide 33 at the bottom of the movable chuck 30 cooperates with the guide slide groove 11 on the top surface of the fixture plate 10. At the same time, the positioning bolt 32 on the top surface of the chuck 31 is threadedly connected to the connecting screw hole 34 on the top surface of the guide slide 33 to complete the fixation of the movable chuck 30 and chuck 31.

[0031] Next, depending on the specific condition of the tool, the servo motor 21 at the corresponding position inside the outer ring seat 20 is started. The output shaft of the servo motor 21 drives the lead screw 12 to rotate stably under the fixation of the bearing 13. The rotation of the lead screw 12 causes the guide slide 33 to move along the guide slide groove 11, thereby driving the movable chuck 30 to move to the appropriate position to match the tool.

[0032] Then, place the tool between the chucks 31 of the movable chuck 30. The rubber damping pads 35 on the side of the chuck 31 that contact the tool can reduce tool vibration.

[0033] When it is necessary to change the tool, first loosen the positioning bolt 32, then start the servo motor 21 to adjust the position of the movable chuck 30, so that the old tool can be quickly removed and the new tool can be installed, realizing rapid tool switching.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tool holder with quick change chuck comprising a holder disc (10) for securing a tool, characterized in that: The outer wall of the clamping disk (10) is provided with an outer ring seat (20), the outer ring seat (20) and the clamping disk (10) are integrally formed, and a number of movable chucks (30) are uniformly and equally spaced in a ring on the top surface of the clamping disk (10). The top surface of the clamping plate (10) is provided with guide grooves (11) that are the same number and position as the movable chuck (30); Each set of movable chucks (30) has a guide slide (33) at its bottom that is adapted to and slidably fitted with the cross-sectional dimensions of the guide slide (11). The top surface of the guide slide (33) has at least two sets of connecting screw holes (34). The top surface of the movable chuck (30) has a chuck head (31) for fixing the tool. The top surface of the chuck head (31) has a positioning bolt (32) that is the same number and size as the connecting screw holes (34) and is threadedly connected.

2. The tool holder with quick change chuck of claim 1, wherein: The number of the movable chuck (30) and guide slide (11) is at least three sets.

3. The tool holder with quick change chuck of claim 1, wherein: The outer ring seat (20) is equipped with servo motors (21) that are the same number and position as the guide slide (11), and each set of servo motors (21) is connected to a lead screw (12) on its output shaft.

4. The tool holder with quick change chuck of claim 3, wherein: The lead screw (12) is threadedly connected to the guide slide (33).

5. The tool holder with quick change chuck of claim 3, wherein: Bearings (13) for fixing the lead screw (12) are embedded on the inner walls of both ends of the guide groove (11).

6. The tool holder with quick change chuck of claim 1, wherein: The side surface of the chuck (31) that contacts the cutting tool is provided with a shock-absorbing pad (35).

7. The tool holder with quick change chuck of claim 6, wherein: The shock-absorbing pad (35) is made of rubber and has a thickness of 1-3mm.

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