Saw blade cutter handle precision correction device and numerical control machine tool

Abstract

The utility model discloses a saw blade and cutter handle precision correction device and a numerical control machine tool, and relates to the technical field of numerical control machining, the saw blade and cutter handle precision correction device comprises a fixed bottom plate, a correction mechanism and a driving mechanism, and a mounting groove is formed in the fixed bottom plate; the correction mechanism comprises a base, a mounting structure, a turning tool rod and a turning tool bit, the mounting structure is arranged at the bottom of the base and clamped in the mounting groove, a mounting channel is formed in the base, one end of the turning tool rod is detachably arranged in the mounting channel, and the other end of the turning tool rod is connected with the turning tool bit; the driving mechanism comprises a grabbing structure and a rotating motor, the driving end of the rotating motor is connected with the grabbing structure, the rotating motor is used for driving the grabbing structure to rotate, and the grabbing structure is used for grabbing the to-be-corrected tool handle and moving the bottom of the tool handle to the position of the turning tool bit so that the turning tool bit can flatten the bottom of the tool handle. The flatness of the cutter handle can be corrected, and therefore large Z-direction jumping of a saw blade during machining of the cutter handle is reduced.

Description

Technical Field

[0001] This application relates to the field of CNC machining technology, and in particular to a saw blade holder precision correction device and a CNC machine tool. Background Technology

[0002] In the industrial environment of saw blade processing and application, the precise installation and stable operation of the saw blade have a decisive impact on cutting quality and efficiency. The saw blade must be tightly and precisely installed on the shank to ensure reliability during high-speed rotational cutting.

[0003] Currently, the post-processing stage of traditional saw blade handles has serious flaws. Most companies still rely on manual methods, using simple grinding tools to fine-tune the handle's precision. However, the inherent drawbacks of manual operation are significant. Because it's difficult to precisely control the force and angle during manual grinding, the flatness of the machined surface at the bottom of the handle is poor. This directly leads to Z-axis runout problems after the saw blade is installed. When the saw blade rotates at high speed, Z-axis runout not only causes severe vibration during the cutting process, greatly reducing cutting accuracy and resulting in noticeably wavy cuts and dimensional errors in the processed products, failing to meet high-precision processing requirements; but also, frequent vibration accelerates the wear of the saw blade and equipment, shortening their service life and increasing the company's equipment maintenance and saw blade replacement costs. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a saw blade holder precision correction device and a CNC machine tool, which can correct the flatness of the holder, thereby reducing the large Z-axis runout of the saw blade during processing.

[0005] In a first aspect, this application provides a saw blade holder precision correction device, comprising:

[0006] A fixed base plate is provided with a mounting groove.

[0007] The correction mechanism includes a base, a mounting structure, a cutting tool holder, and a cutting tool head. The mounting structure is disposed at the bottom of the base and is snapped into the mounting groove. The base is provided with a mounting channel. One end of the cutting tool holder is detachably disposed in the mounting channel, and the other end of the cutting tool holder is connected to the cutting tool head.

[0008] The driving mechanism includes a gripping structure and a rotary motor. The driving end of the rotary motor is connected to the gripping structure. The rotary motor is used to drive the gripping structure to rotate. The gripping structure is used to grip the tool holder to be corrected and move the bottom of the tool holder to the position of the cutting tool head so that the cutting tool head can flatten the bottom of the tool holder.

[0009] The saw blade holder precision correction device according to the first aspect of this application has at least the following beneficial effects: In use, the base of the correction mechanism is snapped into the mounting groove of the fixed base plate via a mounting structure, ensuring the stability of the correction mechanism's position. One end of the cutting tool holder is detachably installed in the mounting channel of the base, and the other end is connected to the cutting tool head, thus completing the installation of the correction tool. Simultaneously, the rotary motor of the drive mechanism is connected to the gripping structure, ready to grip the blade holder. When the blade holder needs correction, the gripping structure of the drive mechanism grips the blade holder to be corrected and moves the bottom of the blade holder to the position of the cutting tool head. Because the rotary motor has high-precision speed and angle control capabilities, the blade holder rotates at a uniform and stable speed in front of the cutting tool head. At the same time, the cutting tool head remains stationary, its sharp cutting edge contacting the rotating bottom of the blade holder. Using pre-set cutting depth parameters, the cutting tool head gradually removes excess material from the bottom of the blade holder, thereby achieving a smoothing and finishing of the bottom of the blade holder. The cutting head of this device can perform high-precision planar finishing on the bottom of the tool holder, removing excess material to achieve a flat surface. During the finishing process, the cutting action of the cutting head is stable and uniform. Compared with manual grinding, it avoids unevenness caused by uneven force, ensuring that the finishing accuracy of the tool holder bottom meets the requirements. This ensures that after the saw blade is installed on the tool holder, its mounting plane is perpendicular to the rotation axis, thereby effectively reducing the saw blade's runout in the Z direction.

[0010] According to some embodiments of the first aspect of this application, the mounting structure includes a mounting block and a first screw. The mounting block is embedded in the mounting groove, and the base has extensions on both sides. The first screw passes through the extensions and the mounting block in sequence to fix the base to the fixed base plate.

[0011] According to some embodiments of the first aspect of this application, the mounting block includes a horizontal portion and a vertical portion, one end of the vertical portion is connected to the middle position of the horizontal portion, the other end of the vertical portion is connected to the first screw, and the cross-sectional shape of the mounting groove matches the shape of the mounting block.

[0012] According to some embodiments of the first aspect of this application, the correction mechanism further includes a plurality of second screws, and the base has a plurality of threaded holes on the side wall relative to the mounting channel, the number of the threaded holes matching the number of the second screws, the second screws being used to pass through the corresponding threaded holes and abut against the cutting tool bar.

[0013] According to some embodiments of the first aspect of this application, the shape of the mounting channel matches the cutting tool holder.

[0014] According to some embodiments of the first aspect of this application, the other end of the cutting tool holder is provided with a positioning groove, and the cutting tool head is installed in the positioning groove.

[0015] According to some embodiments of the first aspect of this application, the other end of the cutting tool holder is further provided with a movable buckle, which is disposed on the side of the positioning groove and is used to press the cutting tool head into the positioning groove.

[0016] According to some embodiments of the first aspect of this application, the end of the cutting tool head extends from the other end of the cutting tool shank.

[0017] Secondly, this application also provides a CNC machine tool, including the saw blade holder accuracy correction device described in any embodiment of the first aspect.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0020] Figure 1 This is a schematic diagram of the saw blade holder accuracy correction device provided in some embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the structure of the correction mechanism provided in some embodiments of this application.

[0022] The attached icons are numbered as follows:

[0023] Fixed base plate 100; mounting groove 110; correction mechanism 200; base 210; mounting channel 211; extension part 212; mounting block 221; first screw 222; horizontal part 223; vertical part 224; cutting tool bar 230; movable buckle 231; cutting tool head 240; second screw 250; tool holder 300. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0027] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0028] In the industrial environment of saw blade processing and application, the precise installation and stable operation of the saw blade have a decisive impact on cutting quality and efficiency. The saw blade must be tightly and precisely installed on the shank to ensure reliability during high-speed rotational cutting.

[0029] Currently, the post-processing stage of traditional saw blade handles has serious flaws. Most companies still rely on manual methods, using simple grinding tools to fine-tune the handle's precision. However, the inherent drawbacks of manual operation are significant. Because it's difficult to precisely control the force and angle during manual grinding, the flatness of the machined surface at the bottom of the handle is poor. This directly leads to Z-axis runout problems after the saw blade is installed. When the saw blade rotates at high speed, Z-axis runout not only causes severe vibration during the cutting process, greatly reducing cutting accuracy and resulting in noticeably wavy cuts and dimensional errors in the processed products, failing to meet high-precision processing requirements; but also, frequent vibration accelerates the wear of the saw blade and equipment, shortening their service life and increasing the company's equipment maintenance and saw blade replacement costs.

[0030] Based on this, this application provides a saw blade holder accuracy correction device and a CNC machine tool to solve the technical problems mentioned above. The technical solutions provided by this application will be described in detail below.

[0031] In a first aspect, this application provides a saw blade holder 300 precision correction device, comprising: a fixed base plate 100, a correction mechanism 200, and a drive mechanism (not shown in the figure). The fixed base plate 100 is provided with a mounting groove 110. The correction mechanism 200 includes a base 210, a mounting structure, a cutting tool bar 230, and a cutting tool head 240. The mounting structure is disposed at the bottom of the base 210 and is engaged in the mounting groove 110. The base 210 is provided with a mounting channel 211. One end of the cutting tool bar 230 is detachably disposed in the mounting channel 211, and the other end of the cutting tool bar 230 is connected to the cutting tool head 240. The drive mechanism includes a gripping structure and a rotary motor. The drive end of the rotary motor is connected to the gripping structure. The rotary motor is used to drive the gripping structure to rotate. The gripping structure is used to grip the blade holder 300 to be corrected and move the bottom of the blade holder 300 to the position of the cutting tool head 240 so that the cutting tool head 240 flattens the bottom of the blade holder 300.

[0032] In use, the base 210 of the correction mechanism 200 is snapped into the mounting slot 110 of the fixed base plate 100 via the mounting structure, ensuring the stability of the correction mechanism 200. One end of the cutting tool holder 230 is detachably installed in the mounting channel 211 of the base 210, and the other end is connected to the cutting tool head 240, thus completing the installation of the correction tool. Simultaneously, the rotary motor of the drive mechanism is connected to the gripping structure, ready to grip the tool holder 300. When the tool holder 300 needs correction, the gripping structure of the drive mechanism grips the tool holder 300 to be corrected and moves the bottom of the tool holder 300 to the position of the cutting tool head 240. Because the rotary motor has high-precision speed and angle control capabilities, the tool holder 300 rotates at a uniform and stable speed in front of the cutting tool head 240. Meanwhile, the cutting head 240 remains stationary, its sharp cutting edge contacting the bottom of the rotating tool holder 300. Using pre-set cutting depth parameters, the cutting head 240 gradually removes excess material from the bottom of the tool holder 300, thus achieving a smooth finish. The cutting head 240 of this device can perform high-precision planar finishing on the bottom of the tool holder 300, removing excess material to achieve a flat bottom. During the finishing process, the cutting action of the cutting head 240 is stable and uniform. Compared to manual grinding, it avoids unevenness caused by uneven force, ensuring the finishing accuracy of the bottom of the tool holder 300 meets requirements. This ensures that after the saw blade is mounted on the tool holder 300, its mounting plane is perpendicular to the rotation axis, effectively reducing saw blade runout in the Z direction.

[0033] Understandably, the mounting structure includes a mounting block 221 and a first screw 222. The mounting block 221 is embedded in the mounting groove 110. Extensions 212 are provided on both sides of the base 210. The first screw 222 passes through the extensions 212 and the mounting block 221 in sequence to fix the base 210 to the fixed base plate 100. The design of the mounting block 221 embedding into the mounting groove 110 provides initial positioning and connection between the base 210 of the correction mechanism 200 and the fixed base plate 100. The embedded structure can, to a certain extent, restrict the horizontal movement of the base 210. The first screw 222 passes through the extensions 212 and the mounting block 221 of the base 210 in sequence, tightly fixing the base 210 to the fixed base plate 100, forming a reliable mechanical connection that can effectively resist various vibrations and impacts generated during the correction of the tool holder 300. Meanwhile, the way the mounting block 221 is embedded in the mounting slot 110 is relatively simple and direct, making it easy for operators to quickly position and install the correction mechanism 200 onto the fixed base plate 100 without the need for complex alignment or calibration tools, thus reducing the difficulty and time cost of installation and improving the assembly efficiency of the device.

[0034] It is understood that the mounting block 221 includes a horizontal portion 223 and a vertical portion 224. One end of the vertical portion 224 is connected to the middle position of the horizontal portion 223, and the other end of the vertical portion 224 is connected to the first screw 222. The cross-sectional shape of the mounting groove 110 matches the shape of the mounting block 221. The combination of the horizontal portion 223 and the vertical portion 224 can constrain the mounting block 221 in multiple directions. The horizontal portion 223 can prevent the mounting block 221 from translating in the horizontal plane, while the vertical portion 224 can restrict its movement in the vertical direction. During operation, when the correction mechanism 200 is subjected to various forces, this multi-directional constraint can keep the base 210 stable, ensuring that the cutting tool head 240 can stably correct the accuracy of the tool holder 300, which helps to reduce errors caused by unstable mounting structure and improve the accuracy of the corrected tool holder 300. At the same time, the cutting operation of the cutting tool head 240 on the tool holder 300 may generate torque. The "T"-shaped structure of the mounting block 221 can effectively resist this torque. When the torque is applied to the base 210 and transmitted to the mounting block 221, the connection point between the horizontal part 223 and the vertical part 224 can serve as a strong support point to disperse the torque and ensure the stability of the correction mechanism 200 during operation.

[0035] Understandably, the correction mechanism 200 also includes several second screws 250. The base 210 has several threaded holes on its side wall relative to the mounting channel 211, the number of which matches the number of second screws 250. The second screws 250 pass through the corresponding threaded holes and abut against the cutting tool holder 230. By providing threaded holes on the side wall of the base 210 and using the second screws 250 to abut against the cutting tool holder 230, the position of the cutting tool holder 230 in the mounting channel 211 can be precisely adjusted. Furthermore, if fine adjustments to the position of the cutting tool holder 230 are needed, such as adjusting the extension length of the cutting tool head 240 or the cutting angle, simply loosening or tightening the corresponding second screws 250 is sufficient. This adjustment method is relatively simple and flexible, eliminating the need for complex disassembly or reinstallation of the entire correction mechanism 200, thus improving the adaptability and operability of the device.

[0036] Understandably, the shape of the mounting channel 211 matches the tool holder 230. The matching shape of the mounting channel 211 with the tool holder 230 ensures that the tool holder 230 fits snugly when inserted into the mounting channel 211, preventing the tool holder 230 from wobbling or loosening within the channel.

[0037] Understandably, the other end of the cutting tool holder 230 is provided with a positioning groove, in which the cutting tool head 240 is installed. The positioning groove provides a precise installation position for the cutting tool head 240, effectively preventing the cutting tool head 240 from shifting left or right or up or down on the cutting tool holder 230. This ensures that the cutting tool head 240 remains in the predetermined position during operation, providing a guarantee for stable and precise correction of the saw blade holder 300.

[0038] Understandably, the other end of the tool holder 230 is also equipped with a movable latch 231. The movable latch 231 is located beside the positioning groove and is used to press the tool head 240 into the positioning groove. The movable latch 231 cooperates with the positioning groove to form a double fixation of the tool head 240. The positioning groove first provides precise positioning for the tool head 240, allowing it to be accurately placed in the appropriate position on the tool holder 230. The movable latch 231 presses the tool head 240 into the positioning groove from the side, further enhancing the fixing effect of the tool head 240. When installing the cutting tool head 240, the operator only needs to place the cutting tool head 240 into the positioning groove, and then simply operate the movable buckle 231 to press it into the positioning groove to complete the installation. When it is necessary to replace the cutting tool head 240, simply release the pressing action of the movable buckle 231 on the cutting tool head 240, and the cutting tool head 240 can be easily removed from the positioning groove. This method can quickly replace the cutting tool head 240, reduce equipment downtime, and facilitate maintenance, replacement or cleaning of the cutting tool head 240.

[0039] Understandably, the end of the cutting tool head 240 extends from the other end of the cutting tool holder 230. This extension of the cutting tool head 240 from the other end of the cutting tool holder 230 ensures that, during the rotation of the tool holder 300, the cutting edge of the cutting tool head 240 can smoothly remove excess material from the bottom of the tool holder 300, thus smoothing the bottom of the tool holder 300.

[0040] Secondly, this application also provides a CNC machine tool, including a saw blade holder accuracy correction device as described in any of the first aspects. The technical solution and beneficial effects of this CNC machine tool are mainly based on the saw blade holder accuracy correction device of the first aspect. For details, please refer to the embodiment section of the first aspect, which will not be repeated here.

[0041] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A saw blade holder precision correction device, characterized in that, include: A fixed base plate is provided with a mounting groove. The correction mechanism includes a base, a mounting structure, a cutting tool holder, and a cutting tool head. The mounting structure is disposed at the bottom of the base and is snapped into the mounting groove. The base is provided with a mounting channel. One end of the cutting tool holder is detachably disposed in the mounting channel, and the other end of the cutting tool holder is connected to the cutting tool head. The driving mechanism includes a gripping structure and a rotary motor. The driving end of the rotary motor is connected to the gripping structure. The rotary motor is used to drive the gripping structure to rotate. The gripping structure is used to grip the tool holder to be corrected and move the bottom of the tool holder to the position of the cutting tool head so that the cutting tool head can flatten the bottom of the tool holder.

2. The saw blade holder accuracy correction device according to claim 1, characterized in that, The mounting structure includes a mounting block and a first screw. The mounting block is embedded in the mounting groove. The base has extensions on both sides. The first screw passes through the extensions and the mounting block in sequence to fix the base to the fixed base plate.

3. The saw blade holder precision correction device according to claim 2, characterized in that, The mounting block includes a horizontal part and a vertical part. One end of the vertical part is connected to the middle position of the horizontal part, and the other end of the vertical part is connected to the first screw. The cross-sectional shape of the mounting groove matches the shape of the mounting block.

4. The saw blade holder precision correction device according to claim 1, characterized in that, The correction mechanism also includes a number of second screws. The base has a number of threaded holes on the side wall relative to the mounting channel. The number of threaded holes matches the number of second screws. The second screws are used to pass through the corresponding threaded holes and abut against the cutting tool bar.

5. The saw blade holder precision correction device according to claim 1, characterized in that, The shape of the mounting channel matches the tool holder.

6. The saw blade holder accuracy correction device according to claim 1, characterized in that, The other end of the cutting tool holder is provided with a positioning groove, and the cutting tool head is installed in the positioning groove.

7. The saw blade holder accuracy correction device according to claim 6, characterized in that, The other end of the cutting tool holder is also provided with a movable buckle, which is located on the side of the positioning groove and is used to press the cutting tool head into the positioning groove.

8. The saw blade holder precision correction device according to claim 6, characterized in that, The end of the cutting tool head extends from the other end of the cutting tool holder.

9. A CNC machine tool, characterized in that, Includes the saw blade holder accuracy correction device as described in any one of claims 1 to 8.

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