Knife pendulum instrument

Abstract

The utility model relates to a cutter pendulum instrument, which comprises a base, a conical mounting seat, a rotary taper sleeve, a cutter system and a brake component, the conical mounting seat is arranged in the base, two axial ends of the conical mounting seat respectively penetrate through the base, the outer side wall of the rotary taper sleeve is matched with the inner side wall of the conical mounting seat, the rotary taper sleeve is rotatably arranged in the conical mounting seat, and the brake component is arranged on the rotary taper sleeve. Steel balls are evenly distributed on the inner side of the rotating taper sleeve, and the cutter system is rotatably arranged on the inner side of the rotating taper sleeve and used for clamping a cutter. The lower end of the cutter system penetrates through the lower end of the conical mounting seat and extends downwards, and the brake assembly is rotatably arranged in the base and used for clamping and holding the lower end of the cutter system or releasing the cutter system; a universal gauge stand is rotatably arranged on the outer side of the base, and the tail end of the universal gauge stand is connected with a measuring dial gauge. According to the utility model, the abrasion between the rotary taper sleeve and the cutter system can be effectively reduced, and the cutter system can be conveniently braked.

Description

Technical Field

[0001] This utility model relates to the field of practical tools for machining, and in particular to a tool swing device. Background Technology

[0002] Tool runout refers to the deviation between the tool's running diameter and its standard diameter caused by various factors affecting the machine tool spindle or the tool itself. A common method for measuring tool runout is to use a dial indicator to measure the diameter of the rotating tool; the difference in the dial indicator reading is the runout value. Simply put, when the tool rotates outwards, the diameter becomes larger. Measuring tool runout helps determine the true running diameter of the tool, preventing the tool from machining the workpiece too small. Existing tool runout detection equipment, when in contact with the tapered surface of the tool holder, allows for internal rotation. Even slight contamination of the tapered surface can affect its accuracy due to surface contact. Furthermore, this tapered surface is prone to wear over time, making replacement inconvenient and increasing wear costs. Summary of the Invention

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a tool swing device with a simple structure, which can effectively reduce the wear between the rotating cone sleeve and the tool system, and facilitate the braking of the tool system.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A tool swing device includes a base, a conical mounting base, a rotating conical sleeve, a tool system, and a braking assembly. The conical mounting base is disposed in the base, with its axial ends penetrating the base. The outer side wall of the rotating conical sleeve is adapted to the inner side wall of the conical mounting base, and the rotating conical sleeve is rotatably disposed in the conical mounting base. Steel balls are evenly distributed on the inner side of the rotating conical sleeve. The tool system is rotatably disposed on the inner side of the rotating conical sleeve and is used to clamp a tool. The lower end of the tool system penetrates through the lower end of the conical mounting base and extends downward. The braking assembly is rotatably disposed in the base and is used to clamp and hold the lower end of the tool system or release the tool system. A universal joint is rotatably disposed on the outer side of the base, and a dial indicator is connected to the end of the universal joint. One end of the dial indicator is disposed on the top side of the tool system.

[0006] In one embodiment, the base is provided with several support feet at its bottom.

[0007] In one embodiment, the lower end of the tool system extending from the conical mounting base is a cylindrical structure, and a boss is provided on the outer side of the lower end of the tool system; the braking assembly includes a rotating sleeve with openings at both ends and a braking inner cylinder. The rotating sleeve is rotatably disposed in the base, and the braking inner cylinder is fitted with a clearance fit inside the rotating sleeve. The boss is rotatably disposed inside the braking inner cylinder. Conical holes are evenly distributed on the side wall of the braking inner cylinder. The inner side of the rotating sleeve is provided with an arc-shaped groove with the same number as the conical holes. One end of the arc-shaped groove is connected to the conical hole. The arc-shaped groove is offset towards the conical hole, and a braking ball can be slidably disposed in each arc-shaped groove. The braking ball can partially extend into the conical hole to abut against the boss.

[0008] When the rotating sleeve rotates relative to the base, the brake ball is driven to extend out of the conical hole through the arc groove to clamp and hold the boss of the tool system, or the brake ball is driven away from the conical hole through the arc groove to release the tool system.

[0009] In one embodiment, the top outer side of the boss is chamfered, and the braking ball in each arc groove is slidably disposed between the conical hole and the arc groove.

[0010] In one embodiment, the base is provided with a bearing seat for the rotating sleeve to rotate circumferentially. The outer side of the base is recessed inward to form an arc-shaped notch channel, which communicates with the rotating sleeve. A brake handle is radially connected to the side wall of the rotating sleeve. The brake handle is movably disposed in the notch channel, and the outer end of the brake handle extends out of the notch channel.

[0011] In one embodiment, the steel ball is rolled and embedded in the inner wall of the rotating tapered sleeve, and the steel ball is in contact with the outer wall of the tool system.

[0012] In one embodiment, the tool system has a tool detachably mounted on top, and one end of the dial indicator is connected in contact with one side of the tool.

[0013] In one embodiment, a support block is provided on the outer wall of the base. The universal joint base includes a first rotating arm, a second rotating arm, and a clamping frame. One end of the first rotating arm is connected to the support block via a first universal ball joint. The other end of the first rotating arm is rotatably provided with a bidirectional rotary joint. One end of the second rotating arm is rotatably mounted on the bidirectional rotary joint. One end of the clamping frame is connected to the end of the second rotating arm away from the first rotating arm via a second universal ball joint. The clamping frame is used to clamp and fix the measuring dial indicator.

[0014] In one embodiment, the top of the base is detachably covered with an annular cover plate. The bottom inner side of the annular cover plate is provided with an annular notch, and the upper outer side of the conical mounting base is provided with a step. The annular notch abuts and engages with the step so that the annular cover plate can lock the conical mounting base.

[0015] In one implementation, the base is a cylindrical structure.

[0016] Compared with traditional technologies, the advantages of the knife pendulum device described in this utility model are:

[0017] This utility model of a knife swing device features a simple, stable, reliable, and easy-to-operate structure. By incorporating steel balls on a rotating conical sleeve and utilizing multiple steel balls to achieve multi-point contact with the knife system, the contact area between the knife system and the rotating conical sleeve is reduced. This lowers the cleanliness requirements during use and reduces wear between the two components. Furthermore, the rotating bushing allows for easy replacement and interchangeability. In addition, this utility model employs a universal joint to adjust the position of the dial indicator, making it convenient to adjust the dial indicator's position during knife swing. A braking component allows for quick and convenient clamping or releasing of the knife system. Therefore, this utility model of a knife swing device has a broad application market.

[0018] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the knife pendulum device of this utility model;

[0020] Figure 2 This is the second structural schematic diagram of the knife pendulum device of this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the knife pendulum device of this utility model;

[0022] Figure 4 This is one of the structural schematic diagrams of the braking component of the knife pendulum device of this utility model;

[0023] Figure 5 This is the second schematic diagram of the braking assembly of the blade pendulum device of this utility model.

[0024] 10. Base; 11. Annular cover plate; 12. Support foot; 13. Arc-shaped notch; 14. Annular notch; 15. Bearing seat; 16. Support block; 20. Conical mounting seat; 30. Rotating conical sleeve; 31. Steel ball; 40. Tool system; 41. Tool; 42. Boss; 50. Universal gauge seat; 51. First rotating arm; 52. Second rotating arm; 53. Clamping frame; 54. Bidirectional rotary joint; 60. Measuring dial indicator; 70. Rotating sleeve; 71. Arc-shaped groove; 72. Brake ball; 73. Brake handle; 74. Brake inner cylinder; 75. Conical hole. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this utility model.

[0027] Please see Figures 1 to 5This embodiment provides a tool swing device, including a base 10, a conical mounting seat 20, a rotating conical sleeve 30, a tool system 40, and a braking assembly. The conical mounting seat 20 is disposed in the base 10, with its axial ends penetrating the base 10. The outer side wall of the rotating conical sleeve 30 is adapted to the inner side wall of the conical mounting seat 20. The rotating conical sleeve 30 is rotatably disposed in the conical mounting seat 20. Steel balls 31 are evenly distributed on the inner side of the rotating conical sleeve 30. The steel balls 31 are rolled and embedded in the inner side wall of the rotating conical sleeve 30, and the steel balls 31 are in contact with the tool system 40. On the outer wall; the tool system 40 is rotatably disposed inside the rotating conical sleeve 30, and the tool system 40 is used to clamp the tool 41; the lower end of the tool system 40 passes through the lower end of the conical mounting base 20 and extends downward; the braking assembly is rotatably disposed in the base 10, and the braking assembly is used to clamp and hold the lower end of the tool system 40 or release the tool system 40; a universal joint base 50 is rotatably disposed on the outer side of the base 10, and a measuring micrometer 60 is connected to the end of the universal joint base 50, and one end of the measuring micrometer 60 is disposed on the top side of the tool system 40.

[0028] Specifically, in this embodiment, the lower end of the tool system 40 extending from the conical mounting base 20 is a cylindrical structure, and a boss 42 is provided on the outer side of the lower end of the tool system 40; the braking assembly includes a rotating sleeve 70 with openings at both ends and a braking inner cylinder 74. The rotating sleeve 70 is rotatably disposed in the base 10, and the braking inner cylinder 74 is clearance-fitted inside the rotating sleeve 70. The boss 42 is rotatably disposed inside the braking inner cylinder 74. Conical holes 75 are evenly distributed on the side wall of the braking inner cylinder 74, and the inner side of the rotating sleeve 70 is provided with an arc-shaped groove 71 in the same number as the conical holes 75. One end of the arc-shaped groove 71 is connected to the conical hole 75. The arc-shaped groove 71 is offset towards the conical hole 75, and a braking ball 72 can be slidably disposed in each arc-shaped groove 71. The braking ball 72 can extend partially into the conical hole 75 to abut against the boss 42. In this way, when the rotating sleeve 70 rotates relative to the base 10, the braking ball 72 is driven to extend partially out of the conical hole 75 through the arc-shaped groove 71 to clamp and hold the boss 42 of the tool system 40, or the braking ball 72 is driven away from the conical hole 75 through the arc-shaped groove 71 to release the tool system 40.

[0029] The top outer side of the boss 42 is chamfered, and the brake ball 72 in each arc groove 71 is slidably disposed between the tapered hole 75 and the arc groove 71 of the rotating sleeve 70. Furthermore, in this embodiment, the base 10 is provided with a bearing seat 15 for the rotating sleeve 70 to rotate circumferentially. The outer side of the base 10 is recessed inward to form an arc-shaped notch channel, which communicates with the rotating sleeve 70. A brake handle 73 is radially connected to the side wall of the rotating sleeve 70, and the brake handle 73 is movably disposed in the notch channel, with its outer end extending out of the notch channel.

[0030] Additionally, a cutter 41 is detachably mounted on the top of the cutter system 40, and one end of the measuring micrometer 60 is connected to one side of the cutter 41. In this embodiment, a support block 16 is provided on the outer wall of the base 10, and the universal joint base 50 includes a first rotating arm 51, a second rotating arm 52, and a clamping frame 53. One end of the first rotating arm 51 is connected to the support block 16 via a first universal ball joint, and the other end of the first rotating arm 51 is rotatably provided with a bidirectional rotary joint 54. One end of the second rotating arm 52 is rotatably mounted on the bidirectional rotary joint 54. One end of the clamping frame 53 is connected to the end of the second rotating arm 52 away from the first rotating arm 51 via a second universal ball joint, and the clamping frame 53 is used to clamp and fix the measuring micrometer 60.

[0031] In this embodiment, the top of the base 10 is detachably covered with an annular cover plate 11. An annular notch 14 is provided on the inner bottom of the annular cover plate 11. A step is provided on the upper outer side of the conical mounting base 20. The annular notch 14 abuts against and engages with the step, allowing the annular cover plate 11 to lock the conical mounting base 20 in place. The base 10 has a cylindrical structure, and several support feet 12 are provided at its bottom.

[0032] In this embodiment, the tool swing device is first used by adjusting the position of the dial indicator 60 via the universal base 50 so that the end of the dial indicator 60 is in contact with the root of the tool 41 and displays a certain data. Then, the tool system 40 is manually rotated so that the rotating cone sleeve 30, the tool system 40, and the conical mounting base 20 rotate synchronously. The difference between the maximum and minimum data of the dial indicator 60 is the value of the tool swing. After the measurement is completed, rotating the brake handle 73 drives the brake ball 72 to move towards the center and clamp the lower end of the boss 42 of the tool system 40, thereby quickly and easily braking the tool system 40.

[0033] Compared with existing technologies, the tool swing device of this invention has a simple structure, is stable and reliable, and is easy to operate. By setting steel balls 31 on the rotating conical sleeve 30 and using multiple steel balls 31 to achieve multi-point contact with the tool system 40, the contact area between the tool system 40 and the rotating conical sleeve 30 is reduced, thereby reducing the cleanliness requirements during use and the wear between the two. Furthermore, the rotating bushing can be replaced to make it highly interchangeable. In addition, this invention uses a universal base 50 to adjust the position of the measuring micrometer 60, which makes it convenient to adjust the position of the measuring micrometer 60 when swinging the tool. The braking component can quickly and easily clamp or release the tool system 40. Therefore, the tool swing device of this invention has a broad application market.

[0034] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model's knife-handling device. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A knife pendulum device, characterized in that: The device includes a base, a conical mounting base, a rotating conical sleeve, a cutting tool system, and a braking assembly. The conical mounting base is disposed within the base, with its axial ends penetrating the base. The outer side wall of the rotating conical sleeve is adapted to the inner side wall of the conical mounting base, and the rotating conical sleeve is rotatably disposed within the conical mounting base. Steel balls are evenly distributed on the inner side of the rotating conical sleeve. The cutting tool system is rotatably disposed within the rotating conical sleeve and is used to clamp cutting tools. The lower end of the cutting tool system penetrates the lower end of the conical mounting base and extends downward. The braking assembly is rotatably disposed within the base and is used to clamp and hold the lower end of the cutting tool system or to release the cutting tool system. A universal joint is rotatably disposed on the outer side of the base, and a dial indicator is connected to the end of the universal joint. One end of the dial indicator is disposed on the top side of the cutting tool system. The cutting tool system extends from the lower end of the conical mounting base in a cylindrical structure, and a boss is provided on the outer side of the lower end of the cutting tool system; the braking assembly includes a rotating sleeve with openings at both ends and a braking inner cylinder. The rotating sleeve is rotatably disposed in the base, and the braking inner cylinder is fitted with a clearance inside the rotating sleeve. The boss is rotatably disposed inside the braking inner cylinder. Conical holes are evenly distributed on the side wall of the braking inner cylinder. The inner side of the rotating sleeve is provided with an arc-shaped groove with the same number of conical holes. One end of the arc-shaped groove is connected to the conical hole. The arc-shaped groove is offset towards the conical hole, and a braking ball can be slidably disposed in each arc-shaped groove. The braking ball can partially extend into the conical hole to abut against the boss. When the rotating sleeve rotates relative to the base, the brake ball is driven to extend out of the conical hole through the arc groove to clamp and hold the boss of the tool system, or the brake ball is driven away from the conical hole through the arc groove to release the tool system. The outer wall of the base is provided with a support block. The universal joint base includes a first rotating arm, a second rotating arm, and a clamping frame. One end of the first rotating arm is connected to the support block through a first universal ball joint. The other end of the first rotating arm is rotatably provided with a bidirectional rotary joint. One end of the second rotating arm is rotatably provided on the bidirectional rotary joint. One end of the clamping frame is connected to the end of the second rotating arm away from the first rotating arm through a second universal ball joint. The clamping frame is used to clamp and fix the measuring dial indicator.

2. The knife pendulum device according to claim 1, characterized in that: The base has several support feet at its bottom.

3. The knife pendulum device according to claim 1, characterized in that: The top outer side of the boss is chamfered, and the braking ball in each arc groove is slidably disposed between the conical hole and the arc groove.

4. The knife pendulum device according to claim 1, characterized in that: The base is provided with a bearing seat for the rotating sleeve to rotate circumferentially. The outer side of the base is recessed inward to form an arc-shaped notch channel, which connects to the rotating sleeve. A brake handle is radially connected to the side wall of the rotating sleeve. The brake handle is movably disposed in the notch channel, and the outer end of the brake handle extends out of the notch channel.

5. The knife pendulum device according to claim 1, characterized in that: The steel ball is rolled and embedded in the inner wall of the rotating tapered sleeve, and the steel ball is in contact with the outer wall of the tool system.

6. The knife pendulum device according to claim 1, characterized in that: The tool system has a tool detachably mounted on top, and one end of the measuring dial indicator is connected in contact with one side of the tool.

7. The knife pendulum device according to claim 1, characterized in that: The top of the base is detachably covered with an annular cover plate. The bottom inner side of the annular cover plate is provided with an annular notch. The upper outer side of the conical mounting base is provided with a step. The annular notch abuts and engages with the step so that the annular cover plate can lock the conical mounting base.

8. The knife pendulum device according to claim 1, characterized in that: The base it sits on is a cylindrical structure.

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