Tooth aligning clamping fixture of numerical control end mill and debugging method

Abstract

The invention belongs to the technical field of tooth alignment and clamping, and discloses a tooth alignment clamping fixture of a numerical control end mill and a debugging method. The tooth aligning clamping fixture of the numerical control end mill comprises a three-jaw chuck, an adjusting block and a tailstock support, the three-jaw chuck is located on the side rear portion of the adjusting block, the tailstock support is located on the side front portion of the adjusting block, a tooth aligning assembly is installed on the top of the adjusting block, the three-jaw chuck and the tailstock support are coaxially arranged, a clamping lantern ring is installed on the front portion of the three-jaw chuck, and the clamping lantern ring is connected with the adjusting block. A rotating center is installed on the rear portion of the tailstock support, the space between the clamping lantern ring and the rotating center is used for installing a machined part, and the tooth aligning assembly is located on the side portion of spline teeth of the machined part. The clamping stability and consistency can be remarkably improved, then the clamping machining quality is improved, meanwhile, the position of the device on the workbench can be flexibly changed, the device adapts to the sizes of teeth aligned to more machined parts, and the machining requirements of new and old machine tools are met.

Description

Technical Field

[0001] The invention relates to the technical field of gear alignment and clamping, and in particular to a gear alignment clamping fixture and a debugging method for a numerically controlled vertical milling machine. Background Art

[0002] In the field of mechanical manufacturing, shaft and gear parts, as key transmission components, are widely used in various types of mechanical equipment. The quality of their processing directly affects the performance and reliability of the equipment. With growing market demand, the company faced an urgent need to expand its production capacity for shaft and gear parts. CNC vertical milling machines, with their high precision and high efficiency, became the preferred equipment for this processing.

[0003] Part processing requires flattening the teeth on the shaft body and precise tooth alignment. The accuracy of tooth alignment directly determines the transmission performance and fit accuracy of the part. A slight deviation may cause vibration, noise, or even damage to the part during use. At the same time, in order to meet high-precision processing requirements, the stability and consistency of the part must be strictly controlled during each clamping process.

[0004] However, in traditional processing methods, manual clamping is easily affected by factors such as the operator's skill level and fatigue level, making it difficult to ensure the accuracy and consistency of each clamping, which in turn affects the processing quality.

[0005] Therefore, optimizing the clamping method and improving its stability and consistency are key to ensuring the machining quality of this gear-shaft component. In this context, exploring a high-precision gear machining and stable clamping solution suitable for CNC vertical milling machines is of great practical significance. Summary of the Invention

[0006] The purpose of the present invention is to provide a tooth clamping fixture and debugging method for CNC vertical milling to overcome the problems existing in the prior art. The present invention can significantly improve the stability and consistency of clamping, thereby improving the quality of clamping processing. At the same time, the position of the device on the workbench can be flexibly changed to adapt to the sizes of teeth of more processed parts and meet the processing requirements of new and old machine tools.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a gear alignment fixture for a CNC vertical milling machine, comprising a three-jaw chuck, an adjustment block, and a tailstock support mounted on a CNC vertical milling table, wherein the three-jaw chuck is located at the side and rear portion of the adjustment block, the tailstock support is located at the side and front portion of the adjustment block, a gear alignment assembly is mounted on the top of the adjustment block, the three-jaw chuck and the tailstock support are coaxially arranged, a clamping collar is mounted at the front portion of the three-jaw chuck, a rotating center is mounted at the rear portion of the tailstock support, a workpiece is mounted in the space between the clamping collar and the rotating center, and the gear alignment assembly is located on the side portion of the spline teeth of the workpiece being processed; Furthermore, the clamping collar includes a collar body, an inner hole is opened in the middle of the collar body for mounting the workpiece, a pressure block is mounted on the top of the inner hole, a clamping bolt is mounted on the top of the pressure block through the collar body for clamping the pressure block, and rebound screws are mounted on the front and rear of the clamping bolt through the collar body respectively for causing the pressure block to rebound; Furthermore, the rebound screw comprises a screw, the bottom end of which is mounted inside the pressing block, a washer being mounted at the bottom of the screw nut, and a compression spring being arranged on the surface of the screw between the washer and the collar body for causing the pressing block to rebound; Furthermore, the adjustment block includes a heightening block, a first positioning block is fixed to the rear of the heightening block, and second positioning blocks are fixed to both sides of the heightening block, and fixing grooves are provided on the first positioning block and the second positioning block, and first mounting holes are provided on both sides of the fixing groove of the first positioning block; a positioning groove is provided on the top of the heightening block for positioning the tooth assembly, and a plurality of second mounting holes are provided at both ends of the top of the heightening block; the tooth assembly includes a tooth body, a base is fixed to the bottom of the tooth body, and a square is installed on the bottom of the base The size of the square key matches the size of the positioning groove, and a plurality of fourth mounting holes are respectively opened on both sides of the base for cooperating with the second mounting holes with fasteners to realize the installation of the gear assembly and the adjustment block; a cover plate is installed on the front part of the gear body, and a rotary groove is coaxially opened between the cover plate and the middle part of the gear body, and a rotary shaft is installed in the rotary groove, and one end of the rotary shaft passes through the cover plate and extends to the interior of the gear body; a gear gauge is also provided on the gear body, and the gear gauge is located on the side of the spline tooth of the machined part, and the gear gauge is connected to the rotary groove; In a second aspect, the present invention provides a method for debugging a tooth alignment fixture for a CNC vertical milling machine, comprising the following steps: Step 1: Adjust and install the tailstock support on the CNC vertical milling table according to the length of the workpiece to be processed; Step 2: Clamp the clamping ring with a three-jaw chuck using a radial clamping force; Step 3: Connect one end of the workpiece to the clamping collar and push the rotating center at the rear of the tailstock into the other end of the workpiece; Step 4: Adjust the spline tooth position of the workpiece to be processed and install the adjustment block with the tooth assembly installed on the top on the CNC vertical milling table; Step 5: Extend the tooth assembly to tighten the spline teeth of the workpiece to be processed, clamp the workpiece by the clamping ring, and then retract the tooth assembly to start processing the workpiece to obtain the part; Step 6: Loosen the part by clamping the collar, retract the rotating center from the other end of the part, and remove the part; Furthermore, the tailstock support is adjusted according to the length of the workpiece to be processed and installed on the CNC vertical milling table, specifically including: Adjust the tailstock according to the length of the workpiece and install it on the CNC vertical milling table so that the rotating center at the rear of the tailstock can tighten the workpiece when it extends out of the tailstock, and does not interfere with the workpiece when it is retracted. Furthermore, the gear assembly includes a gear body, a gear gauge is provided through the gear body, and the gear gauge is located on the spline tooth side of the processed part; The process of adjusting the position of the spline teeth of the workpiece being processed and installing the adjustment block with the tooth alignment assembly on the top on the CNC vertical milling workbench specifically includes: Install the gear assembly on the top of the adjustment block. Install the adjustment block with the gear assembly installed on the top on the CNC vertical milling workbench according to the position of the spline teeth of the workpiece being processed. Adjust the position of the gear assembly on the top of the adjustment block so that the gear gauge of the gear assembly can tighten the spline teeth when extended and not interfere with the spline teeth when retracted. The method of extending the tooth assembly to tighten the spline teeth of the processed part, clamping the processed part through the clamping ring, and then retracting the tooth assembly specifically includes: Extend the tooth gauge of the tooth assembly, tighten the spline teeth of the machined part with the tooth gauge, clamp the machined part with the clamping ring, and then retract the tooth gauge; Furthermore, the clamping collar includes a collar body, an inner hole is opened in the middle of the collar body for mounting the workpiece, a pressure block is mounted on the top of the inner hole, a clamping bolt is mounted on the top of the pressure block through the collar body for clamping the pressure block, and rebound screws are mounted on the front and rear of the clamping bolt through the collar body respectively for causing the pressure block to rebound; The clamping of the processed part by the clamping collar specifically includes: Tighten the clamping bolts, and push the pressing block through the clamping bolts to press the workpiece, so that the workpiece is in a clamped state; Furthermore, the rebound screw comprises a screw, the bottom end of which is mounted inside the pressing block, a washer being mounted at the bottom of the screw nut, and a compression spring being arranged on the surface of the screw between the washer and the collar body for causing the pressing block to rebound; The method of loosening the parts by clamping the collar specifically includes: Loosen the tightening bolt and use the gasket of the rebound screw and the compression spring to rebound the pressing block, so that the parts are in a loosened state.

[0008] The above technical solution has the following advantages or beneficial effects: The invention provides a tooth alignment clamping fixture for CNC vertical milling, in which the three-jaw chuck is coaxially arranged with the tailstock bracket, and cooperates with the clamping ring and the rotating center, which can accurately position and firmly clamp the workpiece to be processed, effectively reducing vibration and displacement during processing, ensuring processing accuracy, and improving the processing quality of parts; the tooth alignment component on the top of the adjustment block is located on the side of the spline teeth of the workpiece to be processed, which is convenient for tooth alignment operations during clamping, ensuring the accuracy of spline tooth processing, avoiding parts scrapping due to tooth alignment errors, and reducing production costs; the three-jaw chuck is installed on the CNC vertical milling workbench, has a compact structure, occupies a small space, and is easy to install and use on the CNC vertical milling equipment; the tailstock bracket can be adjusted according to The length of the machined part can be adjusted to its position, and the gear assembly can also change its position on the adjusting block according to the size of the gear of the machined part, so as to adapt to different parts. This mainly enables old machine tools to meet new processing needs, and the utilization rate of idle machine tools is improved. In addition, the entire processing clamping solution and the gear alignment cost are greatly reduced; the present invention has a simple structure, convenient operation, and no requirements for the tool position of the machine tool. Old machine tools can also be used, and this clamping solution is low-cost. It was originally achieved through a CNC vertical machining center and borrowed high-precision probes. It has high requirements for the machine tool and needs to be able to match the probe system. The machine tool requires a separate probe tool position, which cannot be used on old milling machines, and the cost of the processing solution is high.

[0009] Furthermore, an inner hole is opened in the middle of the ring body, which provides a precise installation position for the processed parts and ensures the initial positioning accuracy of the parts during clamping. A pressure block is installed on the top of the inner hole, which cooperates with the clamping bolt that runs through the ring body to generate reliable and stable clamping force, firmly fix the parts, effectively prevent the parts from loosening during processing, and ensure processing accuracy; and the rebound screws arranged before and after the clamping bolt can make the pressure block automatically rebound after processing is completed, which facilitates the rapid disassembly of the parts and improves the clamping efficiency; the entire clamping ring has a simple structure but complete functions, is easy to operate, and can well adapt to the tooth clamping requirements of CNC vertical milling, thereby improving processing quality and production efficiency.

[0010] Furthermore, the bottom end of the screw is installed inside the pressure block, providing a stable connection basis for the pressure block, ensuring that the screw and the pressure block work together during the clamping process to effectively transmit the clamping force; a gasket is set at the bottom of the nut to increase the force-bearing area, disperse the pressure, avoid the nut directly squeezing the ring body to cause local damage, and extend the service life of the fixture; a compression spring is arranged on the surface of the screw between the gasket and the ring body, which is the core highlight of the design. After processing is completed, the compression spring can quickly push the pressure block to rebound by virtue of its own elastic recovery force, thereby realizing rapid loosening of parts, greatly shortening the disassembly time, improving the clamping efficiency, making the entire tooth clamping process smoother and more efficient, and helping to improve production efficiency.

[0011] Furthermore, the adjustment block enhances its overall stability through the structural design of the heightening block, the first positioning block and the second positioning block; the setting of the fixing groove and the mounting hole facilitates the connection and fixation of the adjustment block with other components, and improves the accuracy and firmness of the installation; the positioning groove on the top of the heightening block provides an accurate positioning reference for the gear assembly, ensuring that the gear assembly is installed accurately.

[0012] Furthermore, the square key of the gear assembly matches the size of the positioning groove of the adjustment block, ensuring the accuracy and stability of the installation. The fourth mounting holes on both sides of the base cooperate with the second mounting holes on the top of the adjustment block to achieve reliable connection through fasteners; the design of the rotary shaft and rotary groove enables the gear gauge to rotate flexibly, which is convenient for adjusting the gear position and improving the gear accuracy; the gear gauge is located on the side of the spline teeth of the processed part, and can accurately detect the position of the spline teeth to ensure the accuracy of processing.

[0013] Secondly, the present invention provides a method for debugging a tooth clamping fixture for a CNC vertical milling machine, which flexibly adjusts the position of the tailstock bracket and installs it according to the length of the workpiece to be processed, can adapt to parts of different lengths, and enhances the versatility of the fixture; utilizes a three-jaw chuck to clamp the clamping ring with a radial clamping force, which is easy to operate and reliable in clamping, providing a stable basis for part clamping; by connecting the two ends of the workpiece to the clamping ring and the rotating center respectively, the coaxiality and stability of the part during the clamping process are ensured, and processing vibration and error are effectively reduced; according to the position of the spline teeth, the adjustment block is adjusted and installed so that the tooth assembly can be accurately aligned with the spline teeth, thereby improving the tooth alignment accuracy and ensuring the spline tooth processing quality; by tightening the spline teeth with the tooth assembly and clamping the part again with the clamping ring, the tooth assembly is retracted for further processing. This operation process is reasonable, which not only ensures the accuracy of tooth alignment, but also facilitates subsequent processing. After processing is completed, the part is loosened by the clamping ring and the rotating center is retracted, and the part can be removed quickly and safely, which not only improves the clamping stability but also improves production efficiency.

[0014] Furthermore, adjusting and installing the tailstock support according to the length of the workpiece can make the fixture better adapt to parts of different specifications, greatly improving the versatility and flexibility of the fixture, ensuring that the rotating center can accurately press the workpiece when extended, providing stable support and positioning for the part, effectively reducing vibration and displacement during processing, and ensuring processing accuracy; and when retracted, it does not interfere with the part, facilitating the clamping and disassembly operations of the part.

[0015] Furthermore, when adjusting and installing the adjustment block and the tooth alignment assembly according to the position of the spline teeth of the processed part, the tooth alignment assembly is installed on the top of the adjustment block, and the adjustment block is accurately installed according to the position of the spline teeth. At the same time, the position of the tooth alignment assembly on the top of the adjustment block is adjusted to ensure that the tooth alignment gauge can press against the spline teeth when extended and does not interfere with the spline teeth when retracted. This operation can accurately position the tooth alignment assembly, so that the tooth alignment gauge and the spline teeth are perfectly matched, greatly improving the tooth alignment accuracy, ensuring the accuracy of spline tooth processing, and effectively reducing the scrapping of parts due to tooth alignment errors; in actual processing operations, the spline teeth are first tightened to ensure the accurate position of the part, then the part is clamped to ensure processing stability, and finally the tooth alignment gauge is retracted to avoid interference with the processing, making the processing process smoother and more efficient.

[0016] Furthermore, tightening the clamping bolt pushes the pressure block to clamp the processed parts. The operation is simple and direct, and can quickly clamp the parts, effectively improve the clamping efficiency, and shorten the production preparation time. The coordinated design of the clamping bolt and the pressure block can generate a stable and reliable clamping force, ensuring that the processed parts are firmly fixed during the processing, reducing processing errors caused by loose parts, and significantly improving processing accuracy and part quality. At the same time, the rebound screws set before and after the clamping bolt can make the pressure block automatically rebound after processing is completed, facilitating rapid disassembly of parts.

[0017] Furthermore, after loosening the clamping bolt, the pressure block can automatically rebound with the help of the gasket of the rebound screw and the compression spring, thereby quickly loosening the part, greatly simplifying the part disassembly process, saving operation time, and improving production efficiency; the elastic recovery force provided by the compression spring is stable and reliable, ensuring that the pressure block can rebound accurately and smoothly, avoiding damage to parts and fixtures due to inadequate or excessive rebound; at the same time, it reduces the tediousness and uncertainty of manual disassembly of parts, reduces labor intensity, and reduces the risk of part damage due to improper operation; overall, this operation step optimizes the user experience of the clamping collar, improves the overall efficiency and quality of CNC end milling, and brings good economic benefits to the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a tooth-aligning clamping fixture for a CNC vertical milling machine according to the present invention; Figure 2 This is a front view of a clamping collar of a tooth clamping fixture for a CNC vertical milling machine according to the present invention; Figure 3 for Figure 2 Cross-sectional view of EE; Figure 4 This is a partial schematic diagram of a clamping collar of a tooth clamping fixture for a CNC vertical milling machine according to the present invention; Figure 5 for Figure 4 Cross-sectional view of middle HH; Figure 6 This is a schematic structural diagram of an adjustment block of a tooth-aligning clamping fixture for a CNC vertical milling machine according to the present invention; Figure 7 This is a schematic structural diagram of a gear alignment component of a gear alignment fixture for a CNC vertical milling machine according to the present invention; Figure 8 This is a cross-sectional view of a tooth alignment assembly of a tooth alignment fixture for a CNC vertical milling machine according to the present invention; In the figure, 1. three-jaw chuck; 2. gear assembly; 21. gear body; 22. gear gauge; 23. slider; 24. base; 25. square key; 26. cover plate; 27. third mounting hole; 28. fourth mounting hole; 29. rotary shaft; 291. limit block; 3. adjustment block; 31. heightening block; 32. first positioning block; 33. second positioning block; 34. fixing slot; 35. first mounting hole; 36. positioning slot; 37. second mounting hole; 4. clamping collar; 41. collar body; 42. pressure block; 43. clamping bolt; 44. screw; 45. gasket; 46. compression spring; 47. inner hole; 5. rotating center; 6. tailstock bracket. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain the present invention rather than to limit it. In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention. It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] Example 1: See also Figure 1The present invention provides a gear alignment fixture for a CNC vertical milling machine, comprising a three-jaw chuck 1, a gear alignment assembly 2, an adjustment block 3, a clamping collar 4, a rotating center 5, and a tailstock support 6; the gear alignment assembly 2 comprises a gear alignment body 21, a gear alignment gauge 22, a rotary shaft 23, a base 24, a square key 25, a cover plate 26, a third mounting hole 27, a fourth mounting hole 28, and a rotary shaft 29; the adjustment block 3 comprises a heightening block 31, a first positioning block 32, a second positioning block 33, a fixing groove 34, a first mounting hole 35, a positioning groove 36, and a second mounting hole 37; the clamping collar 4 comprises a collar body 41, a pressure block 42, a clamping bolt 43, an inner hole 47, and a rebound screw; the rebound screw comprises a screw 44, a washer 45, and a compression spring 46; See also Figure 1 , the three-jaw chuck 1, the adjustment block 3 and the tailstock support 6 are all installed on the CNC vertical milling worktable, the three-jaw chuck 1 is located at the side and rear part of the adjustment block 3, the tailstock support 6 is located at the side and front part of the adjustment block 3, the gear assembly 2 is installed on the top of the adjustment block 3, the three-jaw chuck 1 and the tailstock support 6 are coaxially arranged, the clamping collar 4 is installed at the front part of the three-jaw chuck 1, the rotating center 5 is installed at the rear part of the tailstock support 6, the space between the clamping collar 4 and the rotating center 5 is used to install the workpiece to be processed, and the gear assembly 2 is located on the spline tooth side of the workpiece to be processed; Preferably, the clamping collar 4 is reliably clamped and fixed by the three-jaw chuck 1 with a radial clamping force. The radial clamping force refers to the clamping force perpendicular to the axis of the workpiece. When the three-jaw chuck 1 is working, the three jaws apply pressure to the clamping collar 4 from the radial direction to fix it in a specified position, ensuring that the clamping collar 4 will not be displaced or loosened during the processing, thereby meeting the processing accuracy and stability requirements; Preferably, the three-jaw chuck 1 is mounted on the spindle of a CNC vertical milling table. The three-jaw chuck 1 is a commonly used fixture in machining, consisting of a chuck body, movable jaws, and a jaw drive mechanism. The three jaws can simultaneously approach or withdraw toward the center to clamp or release the workpiece. Preferably, the rotating top 5 is mainly composed of a pin, a clamping device, a housing, a fixing pin, a bearing and a mandrel. One end of the top can push the center hole or the inner hole of the pipe, and the other end can push the top surface of a spherical or conical part. The top is fixed by the clamping device. When the part does not allow or cannot be punched with a center hole, the clamping device can be used to directly clamp and turn it. The housing and the mandrel are drilled with pin holes, and the fixing pin is inserted or removed to realize the dual use of the rotating top 5. Preferably, the tailstock support 6 can be adjusted in position according to the length of the workpiece being processed; the tooth alignment component 2 can also change its position on the adjustment block 3 according to the size of the tooth aligned with the workpiece being processed.

[0021] See also Figure 2 、 Figure 3 、 Figure 4 and Figure 5The inner hole 47 is opened in the middle of the collar body 41 for mounting the workpiece to be processed. The pressure block 42 is mounted on the top of the inner hole 47. The top of the pressure block 42 penetrates the collar body 41 to install the clamping bolt 43 for clamping the pressure block 42. The front and rear parts of the clamping bolt 43 penetrate the collar body 41 to install the rebound screw for making the pressure block 42 rebound. The bottom end of the screw 44 of the rebound screw is mounted inside the pressure block 42. The washer 45 is mounted on the bottom of the nut of the screw 44. A compression spring 46 is arranged on the surface of the screw 44 between the washer 45 and the collar body 41 for making the pressure block 42 rebound.

[0022] See also Figure 6 The first positioning block 32 is fixed to the rear of the heightening block 31, and the second positioning blocks 33 are respectively fixed to both sides of the heightening block 31. The first positioning block 32 and the second positioning block 33 are both provided with fixing grooves 34 for cooperating with fasteners to realize the installation of the adjustment block 3 on the CNC vertical milling workbench. The first positioning block 32 is further provided with first mounting holes 35 on both sides of the fixing groove 34. The top of the heightening block 31 is provided with a positioning groove 36 for positioning with the square key 25 of the tooth assembly 2. A plurality of second mounting holes 37 are respectively provided at both ends of the top of the heightening block 31; Preferably, the height of the raising block 31 is greater than the height of the first positioning block 32 and the second positioning block 33; Preferably, the number of the first mounting holes 35 can be 2, 3, 4, 5, 6, or any other number that can achieve installation; Preferably, the number of the second mounting holes 37 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, or other number that can be used to achieve fastener installation in conjunction with the fourth mounting hole 28 of the tooth assembly 2.

[0023] See also Figure 7 and Figure 8The gear assembly 2 includes a gear body 21, a base 24 is fixed to the bottom of the gear body 21, and a plurality of fourth mounting holes 28 are respectively opened on both sides of the base 24, which are used to cooperate with the second mounting holes 37 to realize the installation of the gear assembly 2 and the adjustment block 3. A gear gauge 22 is provided on the gear body 21, and the gear gauge 22 is located on the spline tooth side of the machined part. A slider 23 is installed on one side of the gear body 21, and the gear gauge 22 is provided through the slider 23. A cover plate 26 is installed on the front of the gear body 21, and a rotary groove is coaxially opened in the middle of the cover plate 26 and the gear body 21. A rotary shaft 29 is installed in the rotary groove. One end of 29 passes through the cover plate 26 and extends to the interior of the gear body 21. The rotary groove is connected to the gear gauge 22, so that the rotary shaft 29 can adjust the distance between the rotary shaft 29 and the gear gauge 22 by rotating. A limit block 291 is also installed on the rotary shaft 29 located inside the gear body 21. When in use, the gear gauge 22 is extended and retracted by manually rotating the rotary shaft 29. A plurality of third mounting holes 27 are also provided on the cover plate 26. A groove is provided at the bottom of the base 24. A square key 25 is installed inside the groove. The size of the square key 25 matches the size of the positioning groove 36. The square key 25 is used to adjust the installation position of the gear assembly 2 and the adjustment block 3. Preferably, the number of the third mounting holes 27 can be 2, 3, 4, 5, 6, or any other number that can achieve installation; Preferably, the number of the fourth mounting holes 28 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, or other number that can be used to achieve fastener installation in conjunction with the second mounting hole 37 of the adjustment block 3.

[0024] In another embodiment of the present invention, a method for debugging a tooth alignment fixture for a CNC vertical milling machine is provided, comprising the following steps: Step 1: Adjust and install the tailstock support 6 on the CNC vertical milling table according to the length of the workpiece to be processed; Specifically, the tailstock support 6 is adjusted according to the length of the workpiece and installed on the CNC vertical milling table so that the rotating center 5 at the rear of the tailstock support 6 is extended out of the tailstock support 6 to tighten the workpiece, and when the tailstock support 6 is retracted, it does not interfere with the workpiece; Step 2: Clamp the clamping ring 4 with a radial clamping force through the three-jaw chuck 1; Step 3: Connect one end of the workpiece to the clamping collar 4, and push the rotating center 5 at the rear of the tailstock support 6 into the other end of the workpiece; Specifically, one end of the workpiece is inserted into the inner hole 47, and the rotating center 5 is pushed into the center hole of the other end face of the workpiece; Step 4: Adjust the position of the spline teeth of the workpiece to be processed and install the adjustment block 3 with the tooth assembly 2 installed on the top on the CNC vertical milling table; Specifically, the gear assembly 2 is installed on the top of the adjustment block 3, and the adjustment block 3 with the gear assembly 2 installed on the top is installed on the CNC vertical milling workbench according to the position of the spline teeth of the workpiece to be processed. The position of the gear assembly 2 on the top of the adjustment block 3 is adjusted so that the gear gauge 22 of the gear assembly 2 is tightened against the spline teeth when extended, and is retracted to the outside of the major diameter of the spline teeth to avoid interference with the spline teeth; Step 5: Extend the tooth assembly 2 to tighten the spline teeth of the workpiece to be processed, clamp the workpiece by the clamping ring 4, and then retract the tooth assembly 2 to start processing the workpiece to obtain the workpiece; Specifically, the tooth gauge 22 of the tooth assembly 2 is extended, and the spline teeth of the workpiece are tightened by the tooth gauge 22. The clamping bolt 43 is tightened, and the pressing block 42 is pushed by the clamping bolt 43 to press the workpiece, so that the workpiece is in a clamped state. The workpiece is clamped by the clamping ring 4, and then the tooth gauge 22 is retracted and retreated to the outside of the major diameter of the spline teeth to avoid interference when the workpiece rotates. Then, the workpiece is processed to obtain the workpiece; Step 6: Loosen the part by clamping the collar 4, retract the rotating center 5 from the other end of the part, and remove the part; Specifically, after the workpiece is processed, the program automatically controls the rotation of the A-axis of the machine tool spindle to restore it to the original clamping angle of the workpiece, then loosens the clamping bolt 43, and rebounds the pressure block 42 through the gasket 45 of the rebound screw and the compression spring 46, so that the part is in a loosened state, retracts the rotating center 5 from the other end of the part, and removes the part to complete the tooth clamping processing and debugging of the CNC vertical milling machine.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tooth clamping fixture for CNC vertical milling, characterized in that: The invention comprises a three-jaw chuck (1), an adjustment block (3) and a tailstock support (6) mounted on a CNC vertical milling workbench, wherein the three-jaw chuck (1) is located at the side rear portion of the adjustment block (3), the tailstock support (6) is located at the side front portion of the adjustment block (3), a tooth alignment component (2) is mounted on the top of the adjustment block (3), the three-jaw chuck (1) and the tailstock support (6) are coaxially arranged, a clamping collar (4) is mounted at the front portion of the three-jaw chuck (1), a rotating top (5) is mounted at the rear portion of the tailstock support (6), a space between the clamping collar (4) and the rotating top (5) is used for mounting a workpiece to be processed, and the tooth alignment component (2) is located at the side portion of the spline teeth of the workpiece to be processed.

2. The tooth-aligning fixture for CNC vertical milling according to claim 1, characterized in that: The clamping collar (4) comprises a collar body (41), an inner hole (47) is provided in the middle of the collar body (41) for mounting a workpiece, a pressure block (42) is mounted on the top of the inner hole (47), a clamping bolt (43) is mounted on the top of the pressure block (42) through the collar body (41) for clamping the pressure block (42), and a rebound screw is mounted on the front and rear of the clamping bolt (43) through the collar body (41) for causing the pressure block (42) to rebound.

3. The tooth-aligning fixture for CNC vertical milling according to claim 2, characterized in that: The rebound screw comprises a screw (44), the bottom end of the screw (44) is mounted inside the pressing block (42), a washer (45) is mounted on the bottom of the nut of the screw (44), and a compression spring (46) is provided on the surface of the screw (44) between the washer (45) and the collar body (41) for causing the pressing block (42) to rebound.

4. The tooth-aligning fixture for CNC vertical milling according to claim 1, characterized in that: The adjustment block (3) includes a heightening block (31), a first positioning block (32) is fixed to the rear of the heightening block (31), and second positioning blocks (33) are fixed on both sides of the heightening block (31), and the first positioning block (32) and the second positioning block (33) are both provided with fixing grooves (34), and first mounting holes (35) are further provided on both sides of the fixing groove (34) of the first positioning block (32); a positioning groove (36) is provided on the top of the heightening block (31) for positioning the tooth assembly (2), and a plurality of second mounting holes (37) are respectively provided at both ends of the top of the heightening block (31).

5. The tooth-aligning fixture for CNC vertical milling according to claim 4, characterized in that: The tooth assembly (2) comprises a tooth body (21), a base (24) is fixed at the bottom of the tooth body (21), a square key (25) is installed at the bottom of the base (24), the size of the square key (25) matches the size of the positioning groove (36), and a plurality of fourth mounting holes (28) are respectively opened on both sides of the base (24), which are used to cooperate with the second mounting holes (37) to realize the installation of the tooth assembly (2) and the adjustment block (3); a cover plate (26) is installed at the front of the tooth body (21), and a rotary groove is coaxially opened in the middle of the cover plate (26) and the tooth body (21), and a rotary shaft (29) is installed in the rotary groove, and one end of the rotary shaft (29) passes through the cover plate (26) and extends to the interior of the tooth body (21); a tooth gauge (22) is also provided on the tooth body (21), and the tooth gauge (22) is located on the spline tooth side of the processed part, and the tooth gauge (22) is connected to the rotary groove.

6. A method for debugging a tooth clamping fixture for a CNC vertical milling machine, characterized in that: A tooth alignment fixture for a CNC vertical milling machine according to any one of claims 1 to 5 comprises the following steps: Adjust and install the tailstock support (6) on the CNC vertical milling table according to the length of the workpiece to be processed; The clamping ring (4) is clamped by a three-jaw chuck (1) with a radial clamping force; Connect one end of the workpiece to be processed to the clamping collar (4), and push the rotating center (5) at the rear of the tailstock support (6) into the other end of the workpiece to be processed; An adjustment block (3) with a tooth assembly (2) mounted on the top is mounted on a CNC vertical milling table according to the position of the spline teeth of the workpiece being processed; The tooth assembly (2) is extended to tighten the spline teeth of the workpiece to be processed, the workpiece is clamped by the clamping ring (4), and then the tooth assembly (2) is retracted to start processing the workpiece to obtain the workpiece; Loosen the part by means of the clamping collar (4), retract the rotating center (5) from the other end of the part and remove the part.

7. The method for debugging a tooth alignment fixture for a CNC vertical milling machine according to claim 6, characterized in that: The method of adjusting the tailstock support (6) according to the length of the workpiece to be processed and installing it on the CNC vertical milling table specifically includes: The tailstock support (6) is adjusted according to the length of the workpiece and installed on the CNC vertical milling table so that the rotating center (5) at the rear of the tailstock support (6) is extended out of the tailstock support (6) to tighten the workpiece, and does not interfere with the workpiece when the tailstock support (6) is retracted.

8. The method for debugging a tooth alignment fixture for a CNC vertical milling machine according to claim 6, characterized in that: The tooth alignment assembly (2) comprises a tooth alignment body (21), a tooth alignment gauge (22) is provided through the tooth alignment body (21), and the tooth alignment gauge (22) is located on the spline tooth side of the processed part; The method of adjusting the position of the spline teeth of the workpiece to be processed and installing the adjustment block (3) with the tooth assembly (2) installed on the top on the CNC vertical milling table specifically includes: The tooth assembly (2) is mounted on the top of the adjustment block (3), and the adjustment block (3) with the tooth assembly (2) mounted on the top is mounted on the CNC vertical milling table according to the position of the spline teeth of the workpiece to be processed, and the position of the tooth assembly (2) on the top of the adjustment block (3) is adjusted so that the tooth gauge (22) of the tooth assembly (2) is tightened against the spline teeth when extended, and does not interfere with the spline teeth when retracted; The method comprises extending the tooth assembly (2) to tighten the spline teeth of the processed part, clamping the processed part through the clamping ring (4), and then retracting the tooth assembly (2), which specifically includes: The tooth gauge (22) of the tooth assembly (2) is extended, the spline teeth of the processed part are tightened by the tooth gauge (22), the processed part is clamped by the clamping ring (4), and then the tooth gauge (22) is retracted.

9. The method for debugging a tooth alignment fixture for a CNC vertical milling machine according to claim 6, characterized in that: The clamping collar (4) includes a collar body (41), an inner hole (47) is provided in the middle of the collar body (41) for mounting a workpiece, a pressure block (42) is mounted on the top of the inner hole (47), a clamping bolt (43) is mounted on the top of the pressure block (42) and passes through the collar body (41) for clamping the pressure block (42), and a rebound screw is mounted on the front and rear of the clamping bolt (43) and passes through the collar body (41) for rebounding the pressure block (42). The clamping of the processed part by the clamping collar (4) specifically includes: Tighten the clamping bolt (43), and push the pressing block (42) through the clamping bolt (43) to press the processed part, so that the processed part is in a clamped state.

10. The method for debugging a tooth alignment fixture for a CNC vertical milling machine according to claim 9, characterized in that: The rebound screw comprises a screw (44), the bottom end of the screw (44) is mounted inside the pressing block (42), a washer (45) is mounted on the bottom of the nut of the screw (44), and a compression spring (46) is provided on the surface of the screw (44) between the washer (45) and the collar body (41) for causing the pressing block (42) to rebound; The process of loosening the parts by means of the clamping collar (4) specifically comprises: Loosen the clamping bolt (43), and use the gasket (45) of the rebound screw in conjunction with the compression spring (46) to rebound the pressing block (42), so that the parts are in a loosened state.

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