Five-axis automatic numerical control grinding device

Abstract

The utility model belongs to tool processing equipment technical field, concretely relates to a five -axis automatic numerical control whetstone equipment, including frame and setting longitudinal transmission sliding table mechanism and polishing mechanism on the frame, polishing mechanism corresponds with angle adjusting mechanism, angle adjusting mechanism sets up on horizontal transmission sliding table mechanism, horizontal transmission sliding table mechanism perpendicularly sets up on longitudinal transmission sliding table mechanism. The utility model discloses through the cooperation and cooperation of longitudinal transmission sliding table mechanism, horizontal transmission sliding table mechanism, polishing mechanism and angle adjusting mechanism, need only to clamp once to the workpiece to be polished, can complete the precision polishing processing of various complex blade type. This integrated design not only improves the machining quality and consistency of tool blade type significantly, but also improves the production efficiency greatly. Through multi -axis linkage control, this equipment can adapt to the tool blade type polishing demand of different shapes and angles, has extensive process adaptability and excellent machining effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of cutting tool processing equipment, specifically relating to a five-axis automatic CNC grinding equipment. Background Technology

[0002] In the field of cutting tool manufacturing, the traditional production method for flat-shaped forming tools mainly relies on universal grinding machines combined with the manual operation of skilled technicians. The forming process is completed by repeatedly adjusting the grinding angle and feed rate of the tungsten carbide rod. This production method has significant technical limitations: First, it requires extremely high technical experience from the operators. Technicians must accurately master parameters such as grinding force, angle, and feed rate; even slight errors can lead to tool edge breakage or substandard geometric accuracy. Second, manual grinding is inefficient, with excessively long processing times for single pieces, making it difficult to meet the demands of modern mass production. Furthermore, traditional universal grinding machines have limited processing freedom, making it difficult to achieve high-precision machining of forming tools with complex cutting edges such as flat or irregular shapes. Multiple clamping and dressing operations are usually required, which not only increases the processing difficulty but also significantly reduces production efficiency. Therefore, this utility model proposes a five-axis automatic CNC grinding device to solve the above technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a five-axis automatic CNC tool grinding device that can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] This utility model provides a five-axis automatic CNC tool grinding device, including a frame and a longitudinal transmission slide mechanism and a grinding mechanism mounted on the frame. The grinding mechanism corresponds to the angle adjustment mechanism, which is mounted on the transverse transmission slide mechanism. The transverse transmission slide mechanism is vertically mounted on the longitudinal transmission slide mechanism.

[0006] The grinding mechanism includes a grinding motor, a diamond grinding wheel, and fixing screws. A mounting base is installed on the output shaft of the grinding motor, the diamond grinding wheel is installed on the mounting base and secured with fixing screws, and the grinding motor is installed on the frame.

[0007] Preferably, both the transverse transmission slide mechanism and the longitudinal transmission slide mechanism include a base plate, a sliding plate, and a slide motor. The sliding plate is disposed above the base plate and slidably mounted on two sets of sliders. The two sets of sliders are slidably mounted on two slide rails, which are parallel to each other on both sides of the surface of the base plate. A transmission screw is mounted on the base plate, and the transmission screw is threadedly engaged with the slider nut. The sliding plate is fixedly mounted on the slider nut. The output shaft of the slide motor is connected to the transmission screw through a coupling. The slide motor is mounted on the frame.

[0008] Preferably, the base plate of the transverse transmission slide mechanism is fixedly mounted on the sliding plate of the longitudinal transmission slide mechanism, and the base plate of the longitudinal transmission slide mechanism is fixedly mounted on the inner bottom surface of the frame. Both the transverse transmission slide mechanism and the longitudinal transmission slide mechanism are equipped with photoelectric sensors.

[0009] Preferably, the angle adjustment mechanism includes a pad and a protective cover. The protective cover is fixedly mounted on the pad, and the pad is fixedly mounted on a sliding plate on the transverse transmission slide mechanism. The pad is provided with two synchronous pulleys and a rotating assembly. The two synchronous pulleys are connected by a synchronous belt drive. A stabilizing bearing is installed on the pad, and one of the synchronous pulleys is installed inside the stabilizing bearing. A swing motor is provided inside the protective cover, and the other synchronous pulley is installed on the output shaft of the swing motor. The swing motor is installed on an arched frame.

[0010] Preferably, the pad is provided with a tightening block, which is installed on the side of the groove opening on the pad. A tightening screw is provided through the tightening block and is threadedly connected to the arch frame. The arch frame is slidably installed in the groove on the pad. Another synchronous pulley is provided in the arch frame. Each of the four corners of the arch frame is provided with a waist hole, and a screw is provided through the waist hole and threadedly connected to the pad.

[0011] Preferably, the rotating assembly includes a rotating block, a coupling, a rotary motor, and two rotating shafts. The two rotating shafts are connected by a key and respectively mounted on the upper and lower surfaces of the rotating block. The lower rotating shaft is connected by a key and mounted on a synchronous pulley. A cover plate is provided above the pad plate, and the upper rotating shaft is mounted on the cover plate by a bearing. The rotary motor is mounted on the side of the rotating block, and its output shaft is connected to a cable head by a coupling.

[0012] Preferably, a vertical plate is installed between the cover plate and the pad plate, and the upper side of the protective cover is fixedly installed on the cover plate by screws.

[0013] Preferably, the side of the frame is provided with a wire inlet knob fixing groove, and the back side is provided with a CNC panel fixing frame and an operation button fixing frame.

[0014] The beneficial effects are:

[0015] This invention, through the coordinated operation of a longitudinal transmission slide mechanism, a transverse transmission slide mechanism, a grinding mechanism, and an angle adjustment mechanism, allows for the precision grinding of various complex cutting edges with only a single clamping of the workpiece. This integrated design not only significantly improves the machining quality and consistency of tool cutting edges but also greatly enhances production efficiency. Through multi-axis linkage control, this equipment can adapt to the grinding needs of tool cutting edges with different shapes and angles, exhibiting wide process adaptability and excellent machining results. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the back and side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the transmission slide mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the grinding component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the angle adjustment mechanism and cable head installation position of this utility model;

[0021] Figure 6 This is a schematic diagram of the angle adjustment mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the angle adjustment mechanism after the protective cover of this utility model has been removed;

[0023] Figure 8 This is a schematic diagram of the structure on the other side of the angle adjustment mechanism after the protective cover has been removed.

[0024] Figure 9 This is a schematic diagram of the explosion distribution after the protective cover of the angle adjustment mechanism of this utility model was removed;

[0025] Figure 10 This utility model relates to a process flow diagram of the grinding process of tungsten carbide rods.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Frame; 2. Longitudinal transmission slide mechanism; 3. Transverse transmission slide mechanism; 2.3.1. Base plate; 2.3.2. Slide rail; 2.3.3. Transmission screw; 2.3.4. Sliding plate; 2.3.5. Slide motor; 2.3.6. Photoelectric sensor; 4. Cable head; 5. Workpiece to be ground; 6. Diamond grinding wheel; 61. Fixing screw; 7. Grinding motor; 71. Mounting base; 8. Cable inlet knob fixing slot; 9. Angle adjustment mechanism; 9 1. Protective cover; 92. Pad; 92a. Stabilizing bearing; 92b. Synchronous pulley; 93. Rotating shaft; 94. Rotating block; 95. Coupling; 96. Rotary motor; 97. Vertical plate; 98. Cover plate; 99. Swing motor; 910. Synchronous belt; 910a. Tightening block; 910b. Tightening screw; 911. Arched frame; 911a. Waist hole; 10. CNC panel fixing frame; 11. Operation button fixing frame; 12. Electrical box door. Detailed Implementation

[0028] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0029] like Figure 1-10 As shown, a five-axis automatic CNC grinding machine includes a frame 1 and a longitudinal transmission slide mechanism 2 and a grinding mechanism mounted on the frame 1. The grinding mechanism corresponds to the angle adjustment mechanism 9, which is mounted on a transverse transmission slide mechanism 3. The transverse transmission slide mechanism 3 is vertically mounted on the longitudinal transmission slide mechanism 2.

[0030] The grinding mechanism includes a grinding motor 7, a diamond wheel 6, and a fixing screw 61. A mounting base 71 is installed on the output shaft of the grinding motor 7. The diamond wheel 6 is installed on the mounting base 71 and is fastened by the fixing screw 61. The grinding motor 7 is installed on the frame 1 and is a variable frequency speed control motor.

[0031] As an optional implementation, both the transverse transmission slide mechanism 3 and the longitudinal transmission slide mechanism 2 include a base plate 2.3.1, a sliding plate 2.3.4, and a slide motor 2.3.5. The sliding plate 2.3.4 is disposed above the base plate 2.3.1 and slidably mounted on two sets of sliders. The two sets of sliders are respectively slidably mounted on two slide rails 2.3.2. The two slide rails 2.3.2 are parallel to each other on both sides of the surface of the base plate 2.3.1. A transmission lead screw 2.3.3 is mounted on the base plate 2.3.1. The moving lead screw 2.3.3 is threadedly engaged with the slider nut, and the sliding plate 2.3.4 is fixedly installed on the slider nut. The output shaft of the slide motor 2.3.5 is connected to the transmission lead screw 2.3.3 through the coupling 95. The slide motor 2.3.5 is mounted on the frame 1. The slide motor 2.3.5 is a servo motor, which enables the slide motor 2.3.5 to perform precise longitudinal and lateral displacement adjustment of the angle adjustment mechanism 9, thereby cooperating with the grinding mechanism to achieve high-precision grinding of the workpiece 5 to be ground.

[0032] See attached document Figure 3 The base plate 2.3.1 on the transverse transmission slide mechanism 3 is fixedly installed on the sliding plate 2.3.4 on the longitudinal transmission slide mechanism 2. The base plate 2.3.1 on the longitudinal transmission slide mechanism 2 is fixedly installed on the inner bottom surface of the frame 1. Photoelectric sensors 2.3.6 are installed on both the transverse transmission slide mechanism 3 and the longitudinal transmission slide mechanism 2.

[0033] See attached document Figure 6 and attached Figure 7The angle adjustment mechanism 9 includes a pad 92 and a protective cover 91. The protective cover 91 is fixedly installed on the pad 92, and the pad 92 is fixedly installed on the sliding plate 2, 3, 4 on the transverse transmission slide mechanism 3. The pad 92 is provided with two synchronous pulleys 92b and a rotating component. The two synchronous pulleys 92b are connected by a synchronous belt 910. A stabilizing bearing 92a is installed on the pad 92, and one of the synchronous pulleys 92b is installed inside the stabilizing bearing 92a. A swing motor 99 is provided inside the protective cover 91, and the other synchronous pulley 92b is installed on the output shaft of the swing motor 99. The swing motor 99 is installed on the arch frame 911. The swing motor 99 is a servo motor. In this way, the swing motor 99 can drive the rotating component through the synchronous belt 910 to achieve precise angle swing adjustment, thereby meeting the grinding requirements of different angles of the workpiece 5 to be ground.

[0034] See attached document Figure 8 A tightening block 910a is provided on the pad 92. The tightening block 910a is installed on the side of the groove opening on the pad 92. A tightening screw 910b is provided through the tightening block 910a and is threadedly connected to the arched frame 911. The arched frame 911 is slidably installed in the groove on the pad 92. Another synchronous pulley 92b is set in the arched frame 911. Waist holes 911a are opened at each of the four corners of the arched frame 911. Furthermore, a screw passes through the waist hole 911a and is threadedly connected to the pad 92. This allows the screw passing through the waist hole 911a to be connected to the pad 92 without being tightened immediately. First, the tightening screw 910b can be adjusted to allow the arched frame 911 to move along the groove, thereby achieving appropriate tension adjustment of the synchronous belt 910. Then, the screw passing through the waist hole 911a is tightened to secure the arched frame 911 to the pad 92, thus ensuring the transmission accuracy and stability of the synchronous belt 910.

[0035] See attached document Figure 9 The rotating assembly includes a rotating block 94, a coupling 95, a rotary motor 96, and two rotating shafts 93. The two rotating shafts 93 are connected by keys and installed on the upper and lower surfaces of the rotating block 94 respectively. The lower rotating shaft 93 is connected by a key and installed on a synchronous pulley 92b. A cover plate 98 is provided above the pad 92, and the upper rotating shaft 93 is installed on the cover plate 98 through bearings. This structural design can ensure the stability and coaxiality of the rotating block 94 during rotation. The rotary motor 96 is installed on the side of the rotating block 94, and its output shaft is connected to a cable head 4 through the coupling 95. The workpiece 5 to be ground is installed on the cable head 4. The cable head 4 adopts a drill chuck structure, and its clamping principle is the same as that of the pistol drill bit clamping mechanism. It can quickly and reliably clamp workpieces 5 of different diameters. The rotary motor 96 is a servo motor, which can realize precise control of the workpiece rotation angle.

[0036] Furthermore, a vertical plate 97 is installed between the cover plate 98 and the pad plate 92, and the upper side of the protective cover 91 is fixedly installed on the cover plate 98 by screws.

[0037] Furthermore, the side of the frame 1 is provided with a wire inlet knob fixing groove 8, the back side is provided with a CNC panel fixing frame 10 and an operation button fixing frame 11, and the other side is provided with an electrical box door 12, which facilitates the installation and maintenance of the electrical components of the equipment. The CNC panel fixing frame 10 is equipped with a CNC panel controller, and the operation fixing frame is equipped with operation buttons, which are used to control the grinding motor 7, the slide table motor 2, 3, 5, the rotary motor 96 and the swing motor 99.

[0038] Combined with appendix Figure 10 Polishing example:

[0039] The grinding motor 7, equipped with a frequency converter for speed regulation, can control the rotation speed of the diamond grinding wheel 6, enabling it to grind steel bars of different materials. It combines rough and fine grinding to improve grinding efficiency. Through the CNC movement of the transverse transmission slide mechanism 3 and the longitudinal transmission slide mechanism 2, the tungsten steel bar first touches the edge. When the tungsten steel bar moves left to the set distance under the action of the transverse transmission slide mechanism 3, it moves forward under the action of the longitudinal transmission slide mechanism 2, grinding out the shape on the left side of the tungsten steel bar in state 2. Then, the tungsten steel bar is reversed and moved back to disengage from the diamond grinding wheel 6. The rotary motor 96 rotates 180 degrees clockwise, and then controls the transverse transmission slide mechanism 3 to move the tungsten steel bar forward to a certain position, grinding it into the shape of the tungsten steel bar in state 2. Finally, the tool is retracted for fine grinding. The rotary motor 96 rotates 75 degrees, the transverse slide moves left, and the longitudinal slide moves forward, completing the beveling of one side of the flat needle, as shown in the tungsten steel bar state 3 figure.

[0040] The cutting edge is finely ground by retracting the blade and slowing down. The rotary motor 96 then rotates 180 degrees, chamfering the back angle of the other cutting edge to achieve the shape of a tungsten carbide rod (state 4). The blade is then retracted again, and the oscillating motor 99 is controlled to rotate to the required angle. The rotary motor 96 rotates normally and then 8-10 degrees to form an angle. Under the operation of the transverse transmission slide mechanism 3 and the longitudinal transmission slide mechanism 2, the edge is ground and the back angle is chamfered, grinding to the shape of a tungsten carbide rod (state 5) in one pass. The blade is then retracted, and the rotary motor 96 rotates 180 degrees, repeating the previous action to grind to the shape of a tungsten carbide rod (state 6). Finally, the ground tool is removed from the cable head 4. The flat tool has both a shaped cutting edge and a back angle.

[0041] Using the above structure, the tungsten carbide rod to be ground is first clamped and locked onto the cable head 4. Grinding parameters (including wheel speed, feed rate, grinding angle, etc.) are set via the CNC panel. After starting the equipment, the frequency-controlled grinding motor 7 drives the diamond grinding wheel 6 to rotate to the set speed. The transverse and longitudinal slides move in tandem under the drive of the servo motor, causing the tungsten carbide rod to move left and contact the grinding wheel for edge positioning. According to the preset program, the transverse slide moves left in conjunction with the longitudinal slide moving forward to complete the rough grinding of the left side of the tungsten carbide rod. Subsequently, the workpiece is deflected away from the grinding wheel, and the servo motor drives the workpiece to rotate 180° before feeding again, completing the grinding process. The right-side shape undergoes symmetrical grinding; the fine grinding stage achieves high-precision cutting edge machining by reducing the feed rate and increasing the grinding wheel speed; the oscillating motor 99 in the angle adjustment mechanism 9 drives the rotating component through the synchronous belt 910 to precisely adjust the grinding angle, cooperating with the slide table movement to complete the forming of different back angles; the rotary motor 96 can precisely control the workpiece rotation angle to achieve multi-angle grinding of complex cutting edges; throughout the entire processing, the photoelectric sensor 2.3.6 monitors the slide table position in real time, forming a closed-loop control to ensure processing accuracy; after processing, the equipment automatically retracts and resets the tool, allowing the operator to easily remove the finished tool. This equipment, through five-axis linkage control, can realize the full-process processing of various tools such as flat cutters, drills, milling cutters, and engraving cutters in a single clamping, and can adapt to the grinding needs of tools with different materials, diameters, and angles by modifying the CNC parameters, greatly improving production efficiency and the consistency of processing quality.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A five-axis automatic CNC knife grinding apparatus, characterized by: The polishing mechanism comprises a polishing motor (7), an emery wheel (6) and a fixing screw (61), the output shaft of the polishing motor (7) is provided with a mounting seat (71), the emery wheel (6) is mounted on the mounting seat (71) and fastened by the fixing screw (61), and the polishing motor (7) is mounted on the rack (1); The longitudinal transmission sliding table mechanism (2) and the transverse transmission sliding table mechanism (3) each comprise a bottom plate (2.3.1), a sliding plate (2.3.4) and a sliding table motor (2.3.5), the sliding plate (2.3.4) is arranged above the bottom plate (2.3.1) and is slidingly mounted on two groups of sliding blocks, the two groups of sliding blocks are slidingly mounted on two sliding rails (2.3.2) respectively, the two sliding rails (2.3.2) are parallelly mounted on both sides of the surface of the bottom plate (2.3.1), the bottom plate (2.3.1) is provided with a transmission screw rod (2.3.3), and the transmission screw rod (2.3.3) is in threaded cooperation with the sliding block nut, the sliding plate (2.3.4) is fixedly mounted on the sliding block nut, and the output shaft of the sliding table motor (2.3.5) is connected with the transmission screw rod (2.3.3) through a shaft coupling (95), and the sliding table motor (2.3.5) is mounted on the rack (1); The angle adjusting mechanism (9) comprises a backing plate (92) and a protective cover (91), the protective cover (91) is fixedly mounted on the backing plate (92), the backing plate (92) is fixedly mounted on the sliding plate (2.3.4) of the transverse transmission sliding table mechanism (3), two synchronous wheels (92b) and a rotating assembly are arranged on the backing plate (92), the two synchronous wheels (92b) are drivingly connected through a synchronous belt (910), a stabilizing bearing (92a) is mounted on the backing plate (92), one of the synchronous wheels (92b) is mounted in the stabilizing bearing (92a), a swing motor (99) is arranged in the protective cover (91), the other synchronous wheel (92b) is mounted on the output shaft of the swing motor (99), and the swing motor (99) is mounted on an arcuate frame (911); A tightening block (910a) is arranged on the backing plate (92), the tightening block (910a) is mounted on the groove opening side of the backing plate (92), a tightening screw (910b) is arranged through the tightening block (910a), the tightening screw (910b) is in threaded connection with the arcuate frame (911), the arcuate frame (911) is slidingly mounted in the groove of the backing plate (92), the other synchronous wheel (92b) is arranged in the arcuate frame (911), and a waist hole (911a) is arranged at each corner of the arcuate frame (911) and penetrates the screw in threaded connection with the backing plate (92). ​ The rotating assembly comprises a rotating block (94), a shaft coupling (95), a rotating motor (96) and two rotating shafts (93), the two rotating shafts (93) are respectively installed on the upper and lower surfaces of the rotating block (94) through key connection, the lower rotating shaft (93) is installed on the synchronous wheel (92b) through key connection, the upper surface of the backing plate (92) is provided with a cover plate (98), the upper rotating shaft (93) is installed on the cover plate (98) through a bearing, the rotating motor (96) is installed on the side surface of the rotating block (94), and the output shaft of the rotating motor (96) is connected with a cable head (4) through the shaft coupling (95). A vertical plate (97) is installed between the cover plate (98) and the backing plate (92), and the upper side of the protective cover (91) is fixedly installed on the cover plate (98) through screws.

2. The five-axis automatic CNC knife grinding device according to claim 1, characterized in that: The bottom plate (2.3.1) on the transverse transmission sliding table mechanism (3) is fixedly installed on the sliding plate (2.3.4) on the longitudinal transmission sliding table mechanism (2), the bottom plate (2.3.1) on the longitudinal transmission sliding table mechanism (2) is fixedly installed on the inner bottom surface of the rack (1), and photoelectric sensors (2.3.6) are installed on the transverse transmission sliding table mechanism (3) and the longitudinal transmission sliding table mechanism (2).

3. The five-axis automatic CNC knife grinding device according to claim 2, characterized in that: The side surface of the rack (1) is provided with a wire inlet knob fixing groove (8), and the back surface is provided with a numerical control panel fixing frame (10) and an operation button fixing frame (11).

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