Multifunctional finish milling cutter clamp with high adaptability

Abstract

The utility model relates to the technical field of cutter holders, in particular to a multifunctional fine milling cutter holder with high adaptability, which comprises a base, a power arm and a limiting shaft, the power arm is mounted inside the base, the surface of the power arm is fixedly connected with the limiting shaft, the limiting shaft is rotatably connected with the inner wall of the base, a mounting rack is mounted inside the power arm, and the mounting rack is fixedly connected with the power arm. The mounting frame is located in the base, the interior of the mounting frame is rotationally connected with a guide wheel, the side surface of the base is fixedly connected with a constraint spring, the side, away from the base, of the constraint spring is fixedly connected with the side surface of the power arm, and an auxiliary assembly is arranged on the surface of the mounting frame and comprises a U-shaped frame. According to the tool holder, by arranging the auxiliary assembly, the adaptability of the tool holder to different tools is improved, then the problem that the adaptability is poor when a clamping structure of a fixed specification is adopted by the tool holder is solved, and the application range of the tool holder is further widened.

Description

Technical Field

[0001] The utility model relates to the technical field of tool holders, in particular to a multifunctional precision milling tool holder with high adaptability. Background Art

[0002] The tool holder is a tool accessory that plays a key role in mechanical processing. It is mainly used to install the tool and can firmly clamp the tool to prevent it from loosening or shifting during the processing process, ensuring the processing accuracy and surface quality. There are different types of tool holders, such as spring chuck type, hydraulic chuck type, heat shrink type, etc., each with its own characteristics and applicable scenarios. The spring chuck type tool holder has a wide clamping range and is convenient for changing tools; the hydraulic chuck type tool holder has high clamping accuracy and good stability; the heat shrink type tool holder has extremely high clamping accuracy and concentricity.

[0003] The prior art includes a utility model with publication number CN221735409U, which discloses a magnetic automatic tool changer. The patent adopts a tool holder base, one side of which is provided with a snap-in groove, the bottom of which is provided with a fixing groove, the top of which is provided with a placement groove, and a magnet is provided inside the placement groove. The utility model integrates the installation and positioning of all components on the tool holder base through the cooperation of the tool holder base, magnet, tool holder clip, quick-change tool handle and matching sensor, with few components, fast assembly and no The movable structure has a high repeatability and positioning accuracy. In addition, the use of a beam sensor to detect the presence of the tool can detect the presence of the tool, which is safer and more reliable. Then, the magnetic adsorption tool holder is used. The magnet can provide sufficient adsorption force to adsorb the tool holder. The adsorption force can also be changed by changing the brand and volume of the magnet. This solves the current problem that the general automatic tool changing tool holder has only the single function of clamping the tool. In some cases where the tool is misaligned due to accidents, continuing to work is likely to cause mechanical collision or safety accidents, posing a safety hazard.

[0004] In the process of clamping the tool with the help of a tool clamp, there is an existing tool clamp structure such as the above-mentioned one. Since the clamping parts of the clamping part adopt fixed specifications, the tool diameter range that can be applied to the tool clamp structure during use is limited by the clamping parts. Since the diameter range of the tools varies greatly, when clamping parts of fixed specifications are used, the adaptability of the tool clamp will be reduced. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings of the prior art that the tool diameter range that can be applied to the tool holder structure is limited by the clamping components during use, and since there are large differences in the diameter range of the tools, when a clamping component of fixed specifications is used, the adaptability of the tool holder will be reduced, and a multifunctional precision milling tool holder with high adaptability is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a multifunctional fine milling cutter clamp with high adaptability, comprising a base, a power arm and a limit shaft, the power arm is installed inside the base, the surface of the power arm is fixedly connected to the limit shaft, the limit shaft is rotatably connected to the inner wall of the base, a mounting bracket is installed inside the power arm, the mounting bracket is located inside the base, the interior of the mounting bracket is rotatably connected to a guide wheel, the side surface of the base is fixedly connected to a constraint spring, the side of the constraint spring away from the base is fixedly connected to the side surface of the power arm, and the surface of the mounting bracket is provided with an auxiliary group The auxiliary component includes a U-shaped frame, the inner wall of the U-shaped frame is rotatably connected to a connecting arm, the side surface of the power arm is fixedly connected to a guide frame, the surface of the connecting arm is fixedly connected to a protrusion, the protrusion is slidably connected to the inner wall of the guide frame, a storage cavity is provided on the surface of the connecting arm, the guide frame is located on the inner wall of the storage cavity and is slidably connected to a connecting plate, the surface of the connecting plate is fixedly connected to a limit spring, the side of the limit spring away from the connecting plate is fixedly connected to the inner wall of the storage cavity, the surface of the connecting plate is fixedly connected to a pin, the surface of the guide frame is provided with a socket, and the pin is plugged into the inner wall of the socket.

[0007] Preferably, there are two U-shaped frames, which are symmetrically arranged about the mounting frame. Both ends of the connecting arm are arc-shaped. The position of the connecting arm can be constrained by the U-shaped frame to ensure that one end of the connecting arm is always in the same position.

[0008] Preferably, the guide frame contacts the surface of the connecting arm, and there are two protrusions, which are symmetrically arranged about the connecting arm. The position of the connecting arm can be constrained by the protrusions to ensure that the movable end of the connecting arm is always in the guide frame.

[0009] Preferably, the connecting plate passes through the side surface of the connecting arm, and the pin passes through the upper surface of the protrusion. The pin in the locked state can cooperate with the socket to limit the moving end of the connecting arm, so that the connecting arm can support the power arm and the mounting frame.

[0010] Preferably, there are multiple sockets, and the multiple sockets are horizontally distributed with respect to the guide frame. The moving direction of the movable end of the connecting arm can be guided by the cooperation between the guide frame and the protrusion.

[0011] Preferably, a power assist assembly is provided on the lower surface of the base, and the power assist assembly includes a servo motor, and the servo motor is fixedly connected to the lower surface of the base. A rotating shaft is installed on the driving end of the servo motor, and a roller is fixedly connected to the surface of the rotating shaft. A limiting sleeve is fixedly connected to the inner wall of the base. Through the cooperation between the servo motor and the rotating shaft, the roller can be driven to rotate when the servo motor is powered on.

[0012] Preferably, the roller is located inside the base, and the limiting sleeve is in sleeve engagement with the surface of the rotating shaft. The limiting sleeve can support and limit the position of the rotating shaft to ensure the stability of the rotating shaft in a rotating state.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, by setting an auxiliary component, when the tool is clamped, the mechanical arm drives the base, the base cooperates with the limit shaft to push the mounting frame, the mounting frame pushes the guide wheel, the guide wheel contacts the tool, and in the process of contacting the tool, under the pressure of the tool, cooperates with the mounting frame to push the limit shaft, the limit shaft pushes the power arm, and the power arm squeezes the constraint spring to ensure that the guide wheel and the mounting frame are stably opened. When the tool completely enters the clamping area, the guide wheel loses the pressure of the tool, and at the same time the constraint spring loses the pressure and cooperates with the power arm and the limit shaft to push the mounting frame and the guide wheel to reset, so as to cooperate with the base to clamp the tool; when the diameter of the clamped tool increases, the connecting plate is pressed, the connecting plate squeezes the limit spring, and pulls the insert The pin is pulled out of the socket to lose the locking effect on the connecting arm. When the connecting arm loses the locking effect, the mounting bracket is pushed outward, and the mounting bracket cooperates with the U-shaped bracket to push the connecting arm. The connecting arm moves along the direction of the guide bracket under the guidance of the protrusion. When the pin moves to another socket, the connecting plate is released, the connecting plate loses the pressure on the limit spring, the limit spring loses the pressure and resets, and cooperates with the connecting plate to push the pin to reset, so that the pin is inserted into the other socket, and then the tool clamp can be reused for clamping. By setting the auxiliary components, the adaptability of the equipment to different tools is increased, thereby reducing the problem of poor adaptability when the equipment adopts a clamping structure of fixed specifications, and further improving the scope of application of the tool clamp.

[0015] 2. In the present invention, by providing an assist component, when the tool is clamped and the position of the tool notch needs to be adjusted, the tool in the clamped state contacts the surface of the roller, the servo motor is turned on, and the servo motor is powered by an external power supply to drive the shaft, and the shaft drives the roller to rotate clockwise. During the rotation of the roller, the friction between the roller and the tool drives the tool to rotate, thereby adjusting the position of the tool notch. By providing an assist component, the tool clamp can adjust the state of the tool in the clamped state, so as to further improve the functionality of the tool clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural diagram of a multifunctional precision milling cutter holder with high adaptability;

[0017] Figure 2 The utility model provides a schematic diagram of the bottom structure of a multifunctional fine milling cutter holder with high adaptability;

[0018] Figure 3 This is a partial structural diagram of a multifunctional precision milling cutter holder with high adaptability proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the auxiliary component structure of a multifunctional fine milling cutter holder with high adaptability;

[0020] Figure 5 The utility model proposes a multifunctional fine milling cutter holder with high adaptability Figure 4 Schematic diagram of the structure at A in the middle;

[0021] Figure 6 The present invention provides a schematic structural diagram of a power assist component of a multifunctional precision milling cutter holder with high adaptability.

[0022] Legend:

[0023] 1. Base; 2. Power arm; 3. Limiting shaft; 4. Mounting frame; 5. Guide wheel; 6. Constraint spring; 7. Auxiliary component; 71. U-shaped frame; 72. Connecting arm; 73. Guide frame; 74. Bump; 75. Connecting plate; 76. Limiting spring; 77. Latch; 78. Socket; 8. Power assist component; 81. Servo motor; 82. Rotating shaft; 83. Rotating roller; 84. Limiting sleeve. DETAILED DESCRIPTION

[0024] See also Figures 1-6 The utility model provides a technical solution: a multifunctional precision milling cutter clamp with high adaptability, including a base 1, a power arm 2 and a limit shaft 3. The power arm 2 is installed inside the base 1, and the surface of the power arm 2 is fixedly connected to the limit shaft 3. The limit shaft 3 is rotatably connected to the inner wall of the base 1. A mounting bracket 4 is installed inside the power arm 2, and the mounting bracket 4 is located inside the base 1. The interior of the mounting bracket 4 is rotatably connected to a guide wheel 5. A constraint spring 6 is fixedly connected to the side surface of the base 1, and the side of the constraint spring 6 away from the base 1 is fixedly connected to the side surface of the power arm 2. An auxiliary component 7 is provided on the surface of the mounting bracket 4, and a power-assisting component 8 is provided on the lower surface of the base 1.

[0025] In this embodiment: the auxiliary component 7 includes a U-shaped frame 71, the inner wall of the U-shaped frame 71 is rotatably connected to a connecting arm 72, the side surface of the power arm 2 is fixedly connected to a guide frame 73, the surface of the connecting arm 72 is fixedly connected to a protrusion 74, the protrusion 74 is slidably connected to the inner wall of the guide frame 73, a storage cavity is provided on the surface of the connecting arm 72, the guide frame 73 is located on the inner wall of the storage cavity and is slidably connected to a connecting plate 75, the surface of the connecting plate 75 is fixedly connected to a limiting spring 76, the side of the limiting spring 76 away from the connecting plate 75 is fixedly connected to the inner wall of the storage cavity, the surface of the connecting plate 75 is fixedly connected to a pin 77, the surface of the guide frame 73 is provided with a socket 78, and the pin 77 is plugged into the inner wall of the socket 78.

[0026] Specifically, there are two U-shaped frames 71, which are symmetrically arranged about the mounting frame 4. The two ends of the connecting arm 72 are arc-shaped. The position of the connecting arm 72 can be constrained by the U-shaped frame 71 to ensure that one end of the connecting arm 72 is always in the same position.

[0027] Specifically, the guide frame 73 contacts the surface of the connecting arm 72 , and there are two protrusions 74 , which are symmetrically arranged with respect to the connecting arm 72 .

[0028] In this embodiment, the position of the connecting arm 72 can be constrained by the protrusion 74 to ensure that the movable end of the connecting arm 72 is always located in the guide frame 73 .

[0029] Specifically, the connecting plate 75 passes through the side surface of the connecting arm 72, and the pin 77 passes through the upper surface of the protrusion 74. The pin 77 in the locked state can cooperate with the socket 78 to limit the moving end of the connecting arm 72, so that the connecting arm 72 can support the power arm 2 and the mounting frame 4.

[0030] In this embodiment, there are multiple insertion holes 78 , and the multiple insertion holes 78 are horizontally distributed with respect to the guide frame 73 .

[0031] In this embodiment, the moving direction of the moving end of the connecting arm 72 can be guided by the cooperation between the guide frame 73 and the protrusion 74 .

[0032] Specifically, the power assist assembly 8 includes a servo motor 81, which is fixedly connected to the lower surface of the base 1. A rotating shaft 82 is installed at the driving end of the servo motor 81, and a roller 83 is fixedly connected to the surface of the rotating shaft 82. A limiting sleeve 84 is fixedly connected to the inner wall of the base 1. Through the cooperation between the servo motor 81 and the rotating shaft 82, the roller 83 can be driven to rotate when the servo motor 81 is powered on.

[0033] Specifically, the roller 83 is located inside the base 1 , and the limiting sleeve 84 is sleeved on the surface of the rotating shaft 82 .

[0034] In this embodiment, the position of the rotating shaft 82 can be supported and limited by the limiting sleeve 84 to ensure the stability of the rotating shaft 82 in the rotating state.

[0035] Working principle: When clamping the tool, the robotic arm drives the base 1, the base 1 cooperates with the limit shaft 3 to push the mounting frame 4, the mounting frame 4 pushes the guide wheel 5, the guide wheel 5 contacts the tool, and in the process of contacting the tool, under the pressure of the tool, cooperates with the mounting frame 4 to push the limit shaft 3, the limit shaft 3 pushes the power arm 2, the power arm 2 squeezes the constraint spring 6 to ensure that the guide wheel 5 and the mounting frame 4 are stably opened. When the tool completely enters the clamping area, the guide wheel 5 loses the pressure of the tool, and at the same time the constraint spring 6 loses the pressure and cooperates with the power arm 2 and the limit shaft 3 to push the mounting frame 4 and the guide wheel 5 to reset, so as to cooperate with the base 1 to clamp the tool; when the diameter of the clamped tool increases, the connecting plate 75 is pressed, the connecting plate 75 squeezes the limit spring 76, and pulls the pin 77, and the pin 77 is pulled out of the plug When latch 77 is released, coupling bar 77 with latch 74 in place, will release latch 75 from latching position 76, which will release latch 76 and cooperate with bar 77 to push latch 77 back into position, allowing latch 77 to be inserted into another socket 78. The tool holder can then be reused for clamping. By providing auxiliary component 7, the adaptability of the device to different tools is increased, thereby reducing the problem of poor adaptability when the device adopts a clamping structure with fixed specifications, and further improving the scope of application of the tool holder.

[0036] In addition, when the tool is clamped and the position of the tool slot needs to be adjusted, the tool in the clamped state contacts the surface of the roller 83, and the switch of the servo motor 81 is turned on. The servo motor 81 is powered by an external power supply and drives the shaft 82. The shaft 82 drives the roller 83 to rotate clockwise. During the rotation of the roller 83, the friction between itself and the tool drives the tool to rotate, thereby adjusting the position of the tool slot. By setting the power assist component 8, the tool clamp can adjust the state of the tool in the clamped state to further improve the functionality of the tool clamp.

Claims

1. A multifunctional fine milling cutter holder with high adaptability, comprising a base (1), a power arm (2) and a limit shaft (3), characterized in that: The power arm (2) is installed inside the base (1), the surface of the power arm (2) is fixedly connected to a limit shaft (3), the limit shaft (3) is rotatably connected to the inner wall of the base (1), a mounting frame (4) is installed inside the power arm (2), the mounting frame (4) is located inside the base (1), the interior of the mounting frame (4) is rotatably connected to a guide wheel (5), the side surface of the base (1) is fixedly connected to a restraining spring (6), the side of the restraining spring (6) away from the base (1) is fixedly connected to the side surface of the power arm (2), the surface of the mounting frame (4) is provided with an auxiliary component (7), the auxiliary component (7) includes a U-shaped frame (71), the inner wall of the U-shaped frame (71) is rotatably connected to a connecting arm (72 ), the side surface of the power arm (2) is fixedly connected to a guide frame (73), the surface of the connecting arm (72) is fixedly connected to a protrusion (74), the protrusion (74) is slidably connected to the inner wall of the guide frame (73), the surface of the connecting arm (72) is provided with a storage cavity, the guide frame (73) is located on the inner wall of the storage cavity and is slidably connected to a connecting plate (75), the surface of the connecting plate (75) is fixedly connected to a limit spring (76), the side of the limit spring (76) away from the connecting plate (75) is fixedly connected to the inner wall of the storage cavity, the surface of the connecting plate (75) is fixedly connected to a pin (77), the surface of the guide frame (73) is provided with a socket (78), and the pin (77) is plugged into the inner wall of the socket (78).

2. The multifunctional fine milling cutter holder with high adaptability according to claim 1, characterized in that: There are two U-shaped frames (71), and the two U-shaped frames (71) are symmetrically arranged with respect to the mounting frame (4). Both ends of the connecting arm (72) are arc-shaped.

3. The multifunctional fine milling cutter holder with high adaptability according to claim 1, characterized in that: The guide frame (73) contacts the surface of the connecting arm (72), and the number of the protrusions (74) is two, and the two protrusions (74) are symmetrically arranged with respect to the connecting arm (72).

4. The multifunctional fine milling cutter holder with high adaptability according to claim 1, characterized in that: The connecting plate (75) passes through the side surface of the connecting arm (72), and the latch (77) passes through the upper surface of the protrusion (74).

5. The multifunctional fine milling cutter holder with high adaptability according to claim 1, characterized in that: There are multiple sockets (78), and the multiple sockets (78) are horizontally distributed with respect to the guide frame (73).

6. The multifunctional fine milling cutter holder with high adaptability according to claim 1, characterized in that: The lower surface of the base (1) is provided with a power assist assembly (8), the power assist assembly (8) comprises a servo motor (81), the servo motor (81) is fixedly connected to the lower surface of the base (1), a rotating shaft (82) is mounted on the driving end of the servo motor (81), a rotating roller (83) is fixedly connected to the surface of the rotating shaft (82), and a limiting sleeve (84) is fixedly connected to the inner wall of the base (1).

7. The multifunctional fine milling cutter holder with high adaptability according to claim 6, characterized in that: The rotating roller (83) is located inside the base (1), and the limiting sleeve (84) is sleeved with the surface of the rotating shaft (82).

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