Tool-change-free cutting reduction machining device based on Stewart platform

Abstract

The utility model discloses a Stewart platform-based tool-change-free cutting reduction processing device, which comprises a shell, a tool-change-free cutting reduction processing device, a tool-change-free cutting reduction processing device, a tool-change-free cutting reduction processing device, a tool-change-free cutting reduction processing device and a tool-change-free cutting reduction processing device, the Stewart platform mechanism is arranged in the machine shell; the multiple machining tool mechanisms are arranged in the machine shell and can be alternately used, and the multiple machining tool mechanisms are evenly distributed on the peripheral side of the Stewart platform mechanism so as to carry out cutting reduction machining on a workpiece fixed to an upper platform of the Stewart platform mechanism; and the operation table is fixed to the shell wall of the machine shell, and the operation table is electrically connected with the Stewart platform mechanism and the machining cutter mechanism. In the machining process, different machining tool mechanisms can be alternately used, machining of different technologies on workpieces is achieved, frequent tool changing operation of operators is avoided, the machining efficiency is improved, and the machining safety is improved. In addition, a Stewart platform is used for replacing a traditional machining platform, and the device has the advantages of high precision, multiple degrees of freedom, platform stability, flexibility and adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing machine tools, and more specifically to a tool-changing-free cutting processing device based on a Stewart platform. Background Art

[0002] CNC subtractive machining is a key machining method in the manufacturing industry. It has experienced technological progress, automation and intelligent development. It has the characteristics of high precision, efficient production and flexible manufacturing, and can adapt to rapidly changing market demands. CNC machine tools have achieved the goals of intelligent manufacturing and industrial Internet through data-driven manufacturing and connection with other equipment. Although this technology is and will continue to develop and promote the progress of the manufacturing industry, there are still some problems: (1) Degree of freedom: The degree of freedom of traditional machining methods is limited by structure and axial movement. Some complex-shaped workpieces may require multiple axial movements or special structures to complete machining. Therefore, in some specific machining tasks, they may be limited by the degree of freedom. (2) Platform stability: The platform stability of CNC machine tools is a key factor in ensuring machining accuracy and quality. However, the platform of some CNC machine tools may have vibration or resonance problems during long-term operation or high-speed cutting, which may affect the stability of the machining results. (3) Although there are machine tools with integrated automatic tool changing systems in the prior art, their tool changing systems are often complex in structure, large in size, expensive, and generally configured for use in larger machining centers. Small machine tools are generally not configured with automatic tool changing systems. As a result, when using small machine tools to process more complex parts, frequent tool changes may cause efficiency or safety issues. When performing complex processing, it is often necessary to frequently remove and change the tool to complete the processing, which may cause a decrease in efficiency or cause safety issues.

[0003] Therefore, how to provide a Stewart platform-based tool-changing and cutting-reducing processing device that can integrate a variety of different tools so that the tools can be used alternately during processing to avoid the operator's frequent tool removal and tool changing operations that reduce processing efficiency and cause safety problems; and has multi-degree-of-freedom processing and good platform stability is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of this, the utility model provides a Stewart platform-based tool-changing and cutting-free processing device that can be integrated with a variety of different tools so that the tools can be used alternately during processing, thereby eliminating the need for operators to frequently remove and change tools, thereby reducing processing efficiency and causing safety problems; and has multi-degree-of-freedom processing and good platform stability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tool-changing-free cutting processing device based on a Stewart platform, comprising:

[0007] A casing, wherein a safety door is provided on one side of the casing, and an observation window is provided on the safety door;

[0008] A Stewart platform mechanism, wherein the Stewart platform mechanism is disposed in the housing;

[0009] A machining tool mechanism, wherein the machining tool mechanism is arranged inside the housing and can be used interchangeably, and the plurality of machining tool mechanisms are evenly distributed on the outer peripheral side of the Stewart platform mechanism to perform cutting processing on the workpiece fixed on the upper platform of the Stewart platform mechanism;

[0010] An operating table is fixed on the outer shell wall of the casing, and the operating table is electrically connected to the Stewart platform mechanism and the processing tool mechanism.

[0011] It can be known from the above technical solutions that compared with the prior art, the utility model discloses a tool-changing-free cutting processing device based on a Stewart platform, which is integrated with a Stewart platform mechanism. The Stewart platform is usually used in applications that require high precision, high stability and multi-axis motion control. Its design principle is based on the six movable arms on the platform, which can change the posture of the platform by adjusting their length and angle. This mechanism structure can achieve complex motion trajectories and can withstand large loads, so that the utility model has high precision, multiple degrees of freedom, platform stability, flexibility and adaptability. These advantages can improve processing efficiency, quality and production flexibility, and are suitable for various processing applications and industries. In addition, during the processing process, different processing tool mechanisms can be used alternately to realize the processing of different processes of the workpiece, so as to eliminate the operator's frequent tool change operations, increase processing efficiency and improve processing safety.

[0012] Furthermore, it also includes a top plate disposed inside the housing and above the Stewart platform mechanism;

[0013] The Stewart platform mechanism includes:

[0014] A base, the bottom end of which is fixed on the bottom shell of the housing;

[0015] A Stewart platform, wherein the lower platform of the Stewart platform is rotatably mounted on the base, and a driven gear is fixed to the bottom end surface of the lower platform;

[0016] A rotating motor, the rotating motor is fixed on the bottom shell of the housing, the rotating motor is electrically connected to the operating table, a driving gear is fixed to the driving end of the rotating motor, and the driving gear is meshed and transmission-connected with the driven gear;

[0017] Each of the machining tool mechanisms comprises:

[0018] Lifting guide rods, wherein the two lifting guide rods are arranged at intervals, the lower ends of the two lifting guide rods are fixedly connected to the top of the base near its outer edge, and the upper ends of the two lifting guide rods are fixedly connected to the bottom end surface of the top plate;

[0019] A lifting motor, the lifting motor is embedded in the base and is electrically connected to the operating table;

[0020] A lifting transmission screw rod, the lower end of which is fixedly connected to the driving end of the lifting motor, and the upper end of which is rotatably connected to the bottom end of the top plate;

[0021] A machining tool assembly is provided through and slidably connected to the two lifting guide rods, the machining tool assembly is threadedly connected to the lifting transmission screw rod, and the machining tool assembly is electrically connected to the operating table.

[0022] The beneficial effects of adopting the above technical solution are: the active gear on the rotating motor can drive the driven gear to rotate, thereby causing the Stewart platform to rotate, which can realize the rotation of the workpiece installed on the Stewart platform, thereby improving the multi-angle processing of the workpiece; and during processing, the lifting motor drives the lifting transmission screw to rotate, thereby realizing the up and down lifting of the processing tool assembly, so that the workpiece can be processed in the up and down directions.

[0023] Furthermore, the machining tool assembly comprises:

[0024] A lifting sliding seat, the lifting sliding seat is passed through and slidably connected to the two lifting guide rods, and the lifting sliding seat is threadedly connected to the lifting transmission screw rod;

[0025] Feed guide rods, wherein two feed guide rods are arranged at intervals, and both ends of the two feed guide rods are respectively fixed to the left and right side walls of the lifting sliding seat;

[0026] A feed motor, the feed motor is fixed on a side wall of the lifting slide seat, and the feed motor is electrically connected to the operating table;

[0027] A feed transmission screw, one end of which passes through a side wall of the lifting sliding seat and is fixedly connected to the driving end of the feed motor, and the other end of which is rotatably connected to the other side wall of the lifting sliding seat;

[0028] A feed sliding seat, the feed sliding seat is penetrated and slidably connected to the two feed guide rods, and the feed sliding seat is threadedly connected to the feed transmission screw rod;

[0029] A tool motor, a housing of which is fixed on the feed slide seat, and the tool motor is electrically connected to the operating table;

[0030] A machining tool is detachably connected to the driving end of the tool motor.

[0031] The beneficial effect of adopting the above technical solution is that the feed motor drives the feed transmission screw to rotate, thereby realizing the feeding function of the processing tool to the workpiece.

[0032] Furthermore, a fan for blowing away processing waste chips is fixed on the top plate.

[0033] The beneficial effect of adopting the above technical solution is that the fan can blow away the waste chips generated during processing in time to avoid the waste chips interfering with the processing.

[0034] Furthermore, an auxiliary lighting lamp is fixed on the bottom end surface of the top plate.

[0035] The beneficial effect of adopting the above technical solution is that the auxiliary lighting can supplement the light source of the processing environment, making it easier for the operator to observe the processing situation through the observation window. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0037] Figure 1 The utility model provides a schematic diagram of the overall structure of a Stewart platform-based tool-changing free cutting processing device.

[0038] Figure 2 This is a first-person structural diagram of the assembly of the Stewart platform mechanism and the machining tool mechanism.

[0039] Figure 3 for Figure 2 A magnified schematic diagram of part A in the figure.

[0040] Figure 4 A schematic diagram of the structure from a second perspective of the assembly of the Stewart platform mechanism and the machining tool mechanism. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] like Figure 1-Figure 4 As shown, the embodiment of the utility model discloses a tool-changing-free cutting processing device based on a Stewart platform, comprising:

[0043] The casing 1 may be made of high-strength stainless steel to effectively prevent debris splashing during processing. A safety door 2 is installed on one side of the casing 1 through a hinge. The safety door 2 is provided with an observation window 3 made of glass or transparent plastic. The safety door 2 is provided with a handle for the user to open or close the safety door 2;

[0044] A Stewart platform mechanism 4, wherein the Stewart platform mechanism 4 is disposed in the housing 1;

[0045] A machining tool mechanism 5, which is a plurality of machining tool mechanisms 5 arranged inside the housing 1 and can be used interchangeably, and the plurality of machining tool mechanisms 5 are evenly distributed on the outer peripheral side of the Stewart platform mechanism 4 to perform cutting processing on the workpiece fixed on the upper platform 421 of the Stewart platform mechanism 4;

[0046] The operating platform 6 is fixed on the outer shell wall of the casing 1 , and the operating platform 6 is electrically connected to the Stewart platform mechanism 4 and the processing tool mechanism 5 .

[0047] The device further comprises a top plate 7 disposed inside the housing 1 and above the Stewart platform mechanism 4;

[0048] Stewart Platform 4 includes:

[0049] A base 41, the bottom end of the base 41 is fixed on the bottom shell of the housing 1;

[0050] Stewart platform 42, Stewart platform 42 is an existing product, which can realize the movement of the workpiece in six degrees of freedom, namely three translational degrees of freedom (front and back, left and right, up and down) and three rotational degrees of freedom (rotation around the X axis, Y axis and Z axis);

[0051] The lower platform 422 of the Stewart platform 42 is rotatably mounted on the base 41, and a driven gear 43 is fixed to the bottom end surface of the lower platform 422;

[0052] A rotating motor 44 is fixed on the bottom shell of the housing 1. The rotating motor 44 is electrically connected to the operating table 6. A driving gear 45 is fixed to the driving end of the rotating motor 44. The driving gear 45 is meshed and transmission-connected with the driven gear 43.

[0053] Therefore, by rotating the active gear on the motor to drive the driven gear to rotate, and then causing the Stewart platform to rotate, the workpiece mounted on the Stewart platform can be rotated, thereby improving the multi-angle processing of the workpiece;

[0054] Each machining tool mechanism 5 comprises:

[0055] Lifting guide rods 51, two lifting guide rods 51 are arranged at intervals, the lower ends of the two lifting guide rods 51 are fixedly connected to the top of the base 41 near its outer edge, and the upper ends of the two lifting guide rods 51 are fixedly connected to the bottom end surface of the top plate 7;

[0056] A lifting motor 52, which is embedded in the base 41 and electrically connected to the operating table 6;

[0057] A lifting transmission screw rod 53, the lower end of which is fixedly connected to the driving end of the lifting motor 52, and the upper end of which is rotatably connected to the bottom end of the top plate 7;

[0058] The machining tool assembly 54 is passed through and slidably connected to the two lifting guide rods 51 . The machining tool assembly 54 is threadedly connected to the lifting transmission screw rod 53 . The machining tool assembly 54 is electrically connected to the operating table 6 .

[0059] Specifically, the machining tool assembly 54 includes:

[0060] A lifting sliding seat 541, the lifting sliding seat 541 is penetrated and slidably connected to the two lifting guide rods 51, and the lifting sliding seat 541 is threadedly connected to the lifting transmission screw rod 53;

[0061] Feed guide rods 542, two feed guide rods 542 are arranged at intervals, and both ends of the two feed guide rods 542 are respectively fixed on the left and right side walls of the lifting sliding seat 541;

[0062] A feeding motor 543, the feeding motor 543 is fixed on a side wall of the lifting sliding seat 541, and the feeding motor 543 is electrically connected to the operating table 6;

[0063] A feed transmission screw 544, one end of which passes through a side wall of the lifting slide seat 541 and is fixedly connected to the driving end of the feed motor 543, and the other end of which is rotatably connected to the other side wall of the lifting slide seat 541;

[0064] A feed sliding seat 545, the feed sliding seat 545 is penetrated and slidably connected to the two feed guide rods 542, and the feed sliding seat 545 is threadedly connected to the feed transmission screw rod 544;

[0065] A tool motor 546, the housing of the tool motor 546 is fixed on the feed slide seat 545, and the tool motor 546 is electrically connected to the operating table 6;

[0066] The processing tool 547 and the driving end of the tool motor 546 are detachably connected, for example, by screw connection, key connection, thread connection or clamping fixation, so that the tool motor can cooperate with various common tools, such as milling cutters, turning tools, drill bits, cutting knives, etc., to realize the processing of workpieces.

[0067] A fan 8 for blowing away the processing waste is fixed on the top plate 7. An auxiliary lighting lamp 9 is fixed on the bottom end surface of the top plate 7.

[0068] When starting processing of this utility model, the following process is generally followed:

[0069] 1. Set the workpiece and fixture: Open the safety door with an observation window, correctly install the workpiece on the upper platform of the Stewart platform, and ensure that the position and posture of the workpiece are correct.

[0070] 2. Loading the processing program: The program to be processed is loaded into the control system of the utility model through the operating table via a U disk or network transmission. This program describes the processing path, the movement mode of the Stewart platform, the cutting parameters and other information.

[0071] 3. Setting tools and cutters: According to the requirements of the processing program, select the appropriate tools and install them on the 3 replaceable processing tool mechanisms, ensure that the tools are firmly installed, and make necessary calibrations and adjustments.

[0072] 4. Set processing parameters: According to the workpiece material and processing requirements, set the processing parameters, such as the cutting speed, feed speed, cutting depth of tools 1, 2, and 3, the translation mode of the Stewart platform, the rotation mode of the Stewart platform, etc. These parameters will affect the processing effect and quality.

[0073] 5. Run the processing program: After confirming that everything is ready, start the processing program, and the utility model automatically processes according to the path and parameters set in the program.

[0074] 6. Monitor the processing process: During the processing, timely observe and monitor the operation status to ensure the safety and normality of the processing process. Pay attention to the cutting conditions, coolant supply, and the quality of the workpiece surface.

[0075] 7. Complete processing and inspection: After the processing program is completed, stop running, remove the processed workpiece, and perform necessary inspections and measurements to ensure that the processing results meet the requirements.

[0076] 8. Cleaning and maintenance: Clean the work surface, remove chips and waste, perform necessary maintenance and care on the device, and keep the equipment in good condition.

[0077] The processing device of the utility model has the following advantages:

[0078] (1) The utility model provides a plurality of machining tool assemblies, each of which can be equipped with different types of machining tools. When machining a workpiece, different types of machining tools can be used alternately to perform different processes on the workpiece, without the need for operators to frequently remove and install tools, thereby greatly improving machining efficiency and enhancing machining safety.

[0079] (2) The device uses a Stewart platform to replace the traditional processing platform. The Stewart platform is usually used in applications that require high precision, high stability and multi-axis motion control. Its design principle is based on the six movable arms on the platform that can change the posture of the platform by adjusting their length and angle. This mechanism structure can achieve complex motion trajectories and can withstand large loads, so that the utility model has the advantages of high precision, multiple degrees of freedom, platform stability, flexibility and adaptability, so that the device can improve processing efficiency, quality and production flexibility, and is suitable for various processing applications and industries.

[0080] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0081] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool-changing-free cutting processing device based on a Stewart platform, characterized in that: include: A casing (1), wherein a safety door (2) is provided on one side surface of the casing (1), and an observation window (3) is provided on the safety door (2); A Stewart platform mechanism (4), wherein the Stewart platform mechanism (4) is arranged in the housing (1); a machining tool mechanism (5), wherein the machining tool mechanism (5) is arranged inside the housing (1) and can be used interchangeably, and the plurality of machining tool mechanisms (5) are evenly distributed on the outer peripheral side of the Stewart platform mechanism (4) to perform cutting processing on a workpiece fixed on an upper platform (421) of the Stewart platform mechanism (4); An operating table (6), wherein the operating table (6) is fixed on the outer shell wall of the casing (1), and the operating table (6) is electrically connected to the Stewart platform mechanism (4) and the processing tool mechanism (5).

2. The tool-changing-free cutting processing device based on the Stewart platform according to claim 1 is characterized in that: It also includes a top plate (7) arranged inside the housing (1) and located above the Stewart platform mechanism (4); The Stewart platform mechanism (4) comprises: A base (41), the bottom end of the base (41) being fixed on the bottom shell of the housing (1); A Stewart platform (42), wherein a lower platform (422) of the Stewart platform (42) is rotatably mounted on the base (41), and a driven gear (43) is fixed to the bottom end surface of the lower platform (422); A rotating motor (44), the rotating motor (44) being fixed on the bottom shell of the housing (1), the rotating motor (44) being electrically connected to the operating table (6), a driving gear (45) being fixed to the driving end of the rotating motor (44), the driving gear (45) being meshingly connected to the driven gear (43); Each of the machining tool mechanisms (5) comprises: Lifting guide rods (51), wherein the two lifting guide rods (51) are arranged at intervals, the lower ends of the two lifting guide rods (51) are fixedly connected to the top of the base (41) near its outer edge, and the upper ends of the two lifting guide rods (51) are fixedly connected to the bottom end surface of the top plate (7); A lifting motor (52), wherein the lifting motor (52) is embedded in the base (41), and the lifting motor (52) is electrically connected to the operating table (6); A lifting transmission screw rod (53), wherein the lower end of the lifting transmission screw rod (53) is fixedly connected to the driving end of the lifting motor (52), and the upper end of the lifting transmission screw rod (53) is rotatably connected to the bottom end of the top plate (7); A machining tool assembly (54), wherein the machining tool assembly (54) is inserted through and slidably connected to the two lifting guide rods (51), the machining tool assembly (54) is threadedly connected to the lifting transmission screw rod (53), and the machining tool assembly (54) is electrically connected to the operating table (6).

3. The tool-changing-free cutting processing device based on the Stewart platform according to claim 2 is characterized in that: The machining tool assembly (54) comprises: A lifting sliding seat (541), the lifting sliding seat (541) is passed through and slidably connected to the two lifting guide rods (51), and the lifting sliding seat (541) is threadedly connected to the lifting transmission screw rod (53); Feed guide rods (542), wherein two feed guide rods (542) are arranged at intervals, and both ends of the two feed guide rods (542) are respectively fixed on the left and right side walls of the lifting sliding seat (541); A feeding motor (543), the feeding motor (543) being fixed on a side wall of the lifting sliding seat (541), and the feeding motor (543) being electrically connected to the operating table (6); A feed transmission screw rod (544), one end of which passes through a side wall of the lifting sliding seat (541) and is fixedly connected to the driving end of the feed motor (543), and the other end of which is rotatably connected to the other side wall of the lifting sliding seat (541); A feed sliding seat (545), the feed sliding seat (545) is penetrated and slidably connected to the two feed guide rods (542), and the feed sliding seat (545) is threadedly connected to the feed transmission screw rod (544); A tool motor (546), the housing of which is fixed on the feed slide seat (545), and the tool motor (546) is electrically connected to the operating table (6); A machining tool (547), wherein the machining tool (547) is detachably connected to the driving end of the tool motor (546).

4. A tool-changing-free cutting processing device based on a Stewart platform according to claim 2 or 3, characterized in that: A fan (8) for blowing away processing waste is fixed on the top plate (7).

5. A tool-changing-free cutting processing device based on a Stewart platform according to claim 2 or 3, characterized in that: An auxiliary lighting lamp (9) is fixed on the bottom end surface of the top plate (7).

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