High-precision shaft-shaped workpiece internal spline gear shaping machining device

Abstract

The utility model relates to the technical field of precision machining, and discloses a high-precision shaft-shaped workpiece internal spline gear shaping machining device which comprises a machine frame, a tailstock is fixedly connected to the bottom of the machine frame, a spindle box is fixedly connected to the top of the machine frame, a chuck is rotationally arranged on the top of the tailstock, and the spindle box is fixedly connected to the top of the machine frame. A motor is fixedly connected to the bottom of the inner wall of the tailstock, the output end of the motor penetrates through the tailstock to be fixedly connected with the chuck, a hydraulic rod is fixedly connected to the bottom of the spindle box, and first threaded holes are formed in the left side and the right side of the bottom of the outer wall of the hydraulic rod correspondingly. The slotting tool is connected to the tool rest in a threaded mode, firmness of the slotting tool is guaranteed, after the fixing box is taken down, the telescopic rod retracts to enable the tool rest to reset to the initial position, the slotting tool is taken down by rotating the slotting tool, the threaded groove is matched with more tools, and after the tool rest is reset, readjustment is not needed after the tools are replaced. The problem that equipment needs to be adjusted after a cutter is replaced is solved.

Description

Technical Field

[0001] This utility model relates to the field of precision machining technology, and in particular to a high-precision device for machining internal spline gears on shaft-shaped workpieces. Background Technology

[0002] As the manufacturing industry continues to develop towards high-end and refined directions, the demand for internal spline structures in shaft parts is increasing. In order to process precise internal spline teeth in shaft-shaped workpieces, a high-precision internal spline tooth processing device for shaft-shaped workpieces is needed.

[0003] A search revealed Chinese Patent Publication No. CN221389226U, which discloses a high-precision fixture structure for machining internal splines on shaft-like parts. The fixture includes a base with a cavity. The inner wall of the cavity has a first annular conical surface and a second annular conical surface, arranged sequentially. The outer wall of a first expansion sleeve has a first conical wall that abuts against the first annular conical surface. The outer wall of a second expansion sleeve has a second conical wall that abuts against the second annular conical surface. Both the first and second expansion sleeves have positioning cavities for clamping the workpiece. A puller is connected to the first expansion sleeve and is used to pull the first expansion sleeve and clamp the workpiece in the second expansion sleeve. This technical solution solves the problem of low coaxiality between the internal spline and the shaft segment during internal spline machining of shaft-like parts in the prior art. However, this device requires changing to different specifications of cutting tools in actual production, which is a cumbersome process. After changing the tools, the tool position needs to be readjusted, resulting in a long equipment adjustment cycle and increasing the company's operating costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-precision internal spline gear shaping device for shaft-shaped workpieces. It aims to improve the existing technology, which requires changing different specifications of cutting tools in actual production. The changing process is cumbersome, and the position of the cutting tool needs to be readjusted after the tool is changed. The equipment adjustment cycle is long, which increases the operating cost of enterprises.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a high-precision internal spline gear shaping device for shaft-shaped workpieces, comprising a frame, a tailstock fixedly connected to the bottom of the frame, a spindle box fixedly connected to the top of the frame, a chuck rotating on the top of the tailstock, a motor fixedly connected to the bottom of the inner wall of the tailstock, the output end of the motor passing through the tailstock and fixedly connected to the chuck, a hydraulic rod fixedly connected to the bottom of the spindle box, and threaded holes provided on both the left and right sides of the bottom of the outer wall of the hydraulic rod, with a bottom setting... The device includes a mounting box with threaded holes on both the left and right sides of its outer wall. Bolts are threaded into the inner walls of the two threaded holes, and adjacent sides of the two bolts are threaded into the threaded hole. A sliding groove is provided on the front bottom of the bolt, and a tool holder is slidably connected to the inner wall of the sliding groove. A telescopic rod is fixedly connected to the rear inner wall of the mounting box, and the front end of the telescopic rod is fixedly connected to the tool holder. A threaded groove is provided on the inner wall of the tool holder, and a insert knife is threaded into the inner wall of the threaded groove. A cooling mechanism is provided on the right side of the outer wall of the tailstock.

[0006] The above technical solution involves placing the shaft-shaped workpiece on a chuck, which firmly clamps the workpiece. A motor drives the chuck to rotate, enabling machining at different positions. A telescopic rod adjusts the horizontal position of the tool holder and the insert, ensuring the tip of the insert aligns with the inner wall of the workpiece, minimizing the contact point between the insert and the workpiece. This allows the insert to gradually grind the workpiece during its descent. A hydraulic rod adjusts the height of the insert, allowing it to penetrate the workpiece and grind its interior. By controlling the hydraulic rod, the insert reaches the appropriate machining position. As the workpiece rotates, the insert performs tooth shaping, gradually machining high-precision internal splines inside the shaft-shaped workpiece. When the insert needs to be replaced, the bolts are removed, the fixing box is taken off, the telescopic rod retracts, and the tool holder returns to its initial position. The insert is then removed by rotating it. The threaded groove accommodates more cutting tools, eliminating the need for readjustment after tool replacement and saving working time.

[0007] As a further description of the above technical solution:

[0008] The cooling mechanism includes a water tank, which is fixedly connected to the right side of the outer wall of the tailstock. A flow channel is provided on the top of the tailstock, and a protective ring is fixedly connected to the inner wall of the flow channel. A water outlet pipe is connected to the right side of the inner wall of the flow channel, and the other end of the water outlet pipe is connected to the water tank. A circulation pump is fixedly connected to the top of the water tank, and the bottom end of the circulation pump is connected to the water tank. A water delivery pipe is connected to the output end of the circulation pump, and a nozzle is fixedly connected to the other end of the water delivery pipe. A filter frame is slidably connected to the inner wall of the water tank.

[0009] The above technical solution involves: using a circulating pump to extract the emulsified oil solution from the water tank and spraying it onto the workpiece through a nozzle. The emulsified oil solution carries away the residual heat from the workpiece and the cutting tool, thus protecting the service life of the cutting tool. It also carries away the debris generated during the processing. The sprayed emulsified oil solution, carrying debris, flows into the flow tank and then into the water tank through the outlet pipe. The filter frame filters the emulsified oil solution, achieving recycling.

[0010] As a further description of the above technical solution:

[0011] A mounting box is fixedly connected to the top of the spindle box, and an alarm light is fixedly connected to the top of the mounting box.

[0012] The above technical solution enables the alarm light to sound when the device malfunctions, reminding staff to carry out repairs.

[0013] As a further description of the above technical solution:

[0014] A mounting groove is provided on the front side of the outer wall of the spindle box, and a display is fixedly connected to the inner wall of the mounting groove.

[0015] The above technical solution allows the display to show the coordinates of the cutting tool, providing a clear understanding of the workpiece's machining progress.

[0016] As a further description of the above technical solution:

[0017] A pipe ring is fixedly connected to the outer wall of the water supply pipe, and a screw is threaded to the rear side of the outer wall of the pipe ring. The pipe ring is threaded to the frame through the screw.

[0018] The above technical solution uses a pipe ring to fix the water pipe and prevent it from falling off.

[0019] As a further description of the above technical solution:

[0020] The water tank has two sliding grooves on the front and back sides of its inner wall, and the filter frame has two sliding strips fixedly connected to the front and back sides of its outer wall. The two sliding strips are slidably connected to the two sliding grooves.

[0021] The above technical solution involves the cooperation of the slide bar and the slide groove, which allows the filter frame to be easily pulled out and provides sliding guidance for the filter frame.

[0022] As a further description of the above technical solution:

[0023] A handle is fixedly connected to the right side of the outer wall of the filter frame, and an anti-slip sleeve is fixedly connected to the middle of the outer wall of the handle.

[0024] The above technical solution provides a gripping point for the filter frame, allowing it to be quickly pulled out for easy cleaning of internal debris. The anti-slip sleeve increases the friction between the hand and the handle, preventing the hand from slipping.

[0025] As a further description of the above technical solution:

[0026] A controller is fixedly connected to the front side of the outer wall of the tailstock. The controller is electrically connected to the motor, hydraulic rod, telescopic rod, display, and circulating pump.

[0027] The above technical solution enables the controller to control multiple components simultaneously, allowing them to work collaboratively, thus improving work efficiency and achieving intelligent operation.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the workpiece is firmly clamped by the chuck, and the insert is threadedly connected to the tool holder to ensure the stability of the insert. The fixing box is removed by removing the bolts, and the telescopic rod retracts to reset the tool holder to the initial position. The insert is removed by rotating the insert. The threaded groove can accommodate more tools. After the tool holder is reset, no readjustment is required after changing the tool, saving working time and solving the problem of needing to adjust the equipment after changing the tool.

[0030] 2. In this utility model, the emulsified oil solution in the water tank is extracted by a circulating pump and sprayed onto the workpiece and the cutting tool through a nozzle to cool the cutting tool and the workpiece, thereby improving the service life of the cutting tool. The sprayed emulsified oil solution carries debris into the water tank, where the debris is filtered by a filter frame. The filtered emulsified oil solution is then extracted by the circulating pump and sprayed out through the nozzle, achieving recycling and improving the practicality of the device. Attached Figure Description

[0031] Figure 1 This is a perspective view of a high-precision internal spline gear shaping device for shaft-shaped workpieces proposed in this utility model.

[0032] Figure 2 This is a partial structural exploded view of a high-precision internal spline gear shaping device for shaft-shaped workpieces proposed in this utility model.

[0033] Figure 3 This is a partial structural diagram of a high-precision internal spline gear shaping device for shaft-shaped workpieces proposed in this utility model.

[0034] Figure 4 This is a partial structural schematic diagram of a high-precision internal spline gear shaping device for shaft-shaped workpieces proposed in this utility model.

[0035] Figure 5This is a schematic diagram of the cooling mechanism of a high-precision internal spline gear shaping device for shaft-shaped workpieces proposed in this utility model.

[0036] Figure 6 for Figure 5 Enlarged view of point A.

[0037] Legend:

[0038] 1. Frame; 2. Cooling mechanism; 201. Water tank; 202. Protective ring; 203. Flow channel; 204. Water outlet pipe; 205. Circulation pump; 206. Water supply pipe; 207. Nozzle; 208. Filter frame; 3. Tailstock; 4. Spindle box; 5. Clamping plate; 6. Motor; 7. Hydraulic rod; 8. Fixing box; 9. Threaded hole one; 10. Threaded hole two; 11. Bolt; 12. Slide groove one; 13. Telescopic rod; 14. Threaded groove; 15. Inserting knife; 16. Mounting box; 17. Alarm light; 18. Mounting groove; 19. Display; 20. Pipe ring; 21. Screw; 22. Slide groove two; 23. Sliding bar; 24. Handle; 25. Anti-slip sleeve; 26. Tool holder; 27. Controller. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a high-precision spindle gear shaping device for shaft-shaped workpieces, comprising a frame 1, a tailstock 3 fixedly connected to the bottom of the frame 1 to provide a mounting base for other components, a spindle box 4 fixedly connected to the top of the frame 1, a chuck 5 rotating from the top of the tailstock 3 for clamping workpieces of different sizes, a motor 6 fixedly connected to the bottom of the inner wall of the tailstock 3, the output end of the motor 6 passing through the tailstock 3 and fixedly connected to the chuck 5, the motor 6 driving the chuck 5 and the workpiece to rotate, so that the workpiece is uniformly machined with gears, a hydraulic rod 7 fixedly connected to the bottom of the spindle box 4, the hydraulic rod 7 moving up and down to drive the cutting tool to process the workpiece, threaded holes 9 on both the left and right sides of the bottom of the outer wall of the hydraulic rod 7, a fixing box 8 at the bottom of the hydraulic rod 7, and threaded holes 10 on both the left and right sides of the outer wall of the fixing box 8. Bolts 11 are threadedly connected to the inner wall of the 10. The adjacent sides of two bolts 11 are threadedly connected to threaded holes 9. The fixed box 8 is threadedly connected to the hydraulic rod 7, which facilitates the removal of the fixed box 8 and the replacement of internal components. A sliding groove 12 is provided on the front side of the bottom of the fixed box 8. A tool holder 26 is slidably connected to the inner wall of the sliding groove 12. A telescopic rod 13 is fixedly connected to the rear side of the inner wall of the tool holder 26 and the inner wall of the bolts 11. The front end of the telescopic rod 13 is fixedly connected to the tool holder 26. The tool holder 26 is slidably connected to the fixed box 8. The position of the tool holder 26 is adjusted by activating the telescopic rod 13, so as to adapt to workpieces of different sizes. A threaded groove 14 is provided on the inner wall of the tool holder 26. A cutting tool 15 is threadedly connected to the inner wall of the threaded groove 14. The threaded groove 14 is suitable for a variety of cutting tools. The threaded connection facilitates replacement and ensures the straightness of the cutting tool. A cooling mechanism 2 is provided on the right side of the outer wall of the tailstock 3.

[0041] Specifically, the shaft-shaped workpiece is placed on the chuck 5, which firmly clamps the workpiece. When the motor 6 starts, it drives the chuck 5 to rotate, mounting the insert tool 15 on the tool holder 26. The telescopic rod 13 adjusts the horizontal position of the tool holder 26 and the insert tool 15, aligning the tip of the insert tool 15 with the inner wall of the workpiece to minimize the contact point between the insert tool 15 and the workpiece. This allows the insert tool 15 to gradually grind the workpiece during its descent. The telescopic rod 13 gradually moves the insert tool 15 outward to prevent severe wear. The hydraulic rod 7 adjusts the height of the insert tool 15, ensuring that the insert tool 15... 5. The insert can be inserted into the workpiece to grind the inside of the workpiece. By controlling the hydraulic rod 7, the insert 15 is moved to the appropriate processing position. As the workpiece rotates, the insert 15 performs tooth cutting on the workpiece, gradually machining high-precision internal splines inside the shaft-shaped workpiece. When the insert 15 needs to be replaced, the bolt 11 is removed to remove the fixing box 8, and the telescopic rod 13 is retracted, so that the tool holder 26 is reset to the initial position. The insert 15 is removed by rotating it. The thread groove 14 is adapted to more tools, so that no readjustment is required after tool replacement, saving working time.

[0042] Reference Figure 4 , Figure 5 and Figure 6 The cooling mechanism 2 includes a water tank 201, which is used to hold the emulsified oil solution. The water tank 201 is fixedly connected to the right side of the outer wall of the tailstock 3. A flow channel 203 is opened on the top of the tailstock 3. The sprayed emulsified oil solution will flow into the flow channel 203. A protective ring 202 is fixedly connected to the inner wall of the flow channel 203. The protective ring 202 mainly serves a protective function to prevent the emulsified oil solution from splashing to other areas of the device, causing cleaning difficulties. A water outlet pipe 204 is connected to the right side of the inner wall of the flow tank 203. The other end of the water outlet pipe 204 is connected to the water tank 201. The emulsified oil solution in the flow tank 203 flows into the water tank 201 through the water outlet pipe 204. A circulation pump 205 is fixedly connected to the top of the water tank 201. The bottom end of the circulation pump 205 is connected to the water tank 201. The output end of the circulation pump 205 is connected to the water delivery pipe 206. The circulation pump 205 draws out the emulsified oil solution in the water tank 201 and sends it to the water delivery pipe 206. A nozzle 207 is fixedly connected to the other end of the water supply pipe 206. The emulsified oil solution in the water supply pipe 206 is sprayed onto the workpiece through the nozzle 207 to cool the workpiece and the insert 15. A filter frame 208 is slidably connected to the inner wall of the water tank 201 to filter out debris mixed in with the emulsified oil solution flowing into the water tank 201. A pipe ring 20 is fixedly connected to the outer wall of the water supply pipe 206 to reinforce the water supply pipe 206 and prevent leakage. Water pipe 206 falls off. Screw 21 is threaded on the rear side of the outer wall of pipe ring 20. Pipe ring 20 is threaded to frame 1 through screw 21. Slide groove 22 is provided on the front and rear sides of the inner wall of water tank 201. Slide strip 23 is fixedly connected to the front and rear sides of the outer wall of filter frame 208. The two slide strips 23 are slidably connected to the two slide grooves 22 respectively. The slide grooves 22 and slide strips 23 cooperate to provide a sliding track for filter frame 208, so as to facilitate the sliding of filter frame 208.

[0043] Specifically, during workpiece processing, the inserter 15 continuously rubs against the workpiece, generating heat. To prevent the inserter 15 from overheating and affecting its service life, the circulation pump 205 is started to draw out the emulsified oil solution from the water tank 201 and transport it to the water pipe 206. The emulsified oil solution in the water pipe 206 is sprayed onto the inserter 15 through the nozzle 207, carrying away the residual heat on the inserter 15. The protective ring 202 plays a protective role in this process, preventing the emulsified oil solution from splashing to other parts of the device. At the same time, the flow of the emulsified oil solution carries away the heat generated during processing. The raw debris is carried into the flow tank 203, and the emulsified oil solution mixed with debris flows into the water tank 201 through the water outlet pipe 204. The filter frame 208 in the water tank 201 filters the debris in the emulsified oil solution. The filtered emulsified oil solution can be recycled. When too much debris accumulates, the filter frame 208 is pulled outward to clean the debris in the filter frame 208. The pipe ring 20 is used to fix the water supply pipe 206 to prevent the water supply pipe 206 from falling off. The slide bar 23 cooperates with the slide groove 22 to provide a precise moving path for the filter frame 208.

[0044] Reference Figure 1 and Figure 4 The top of the spindle box 4 is fixedly connected to the mounting box 16, and the top of the mounting box 16 is fixedly connected to the alarm light 17. The alarm light 17 will sound an alarm when the equipment malfunctions to remind the staff. The front side of the outer wall of the spindle box 4 is provided with a mounting groove 18, and the inner wall of the mounting groove 18 is fixedly connected to the display 19. The display 19 is used to display the position coordinates of the cutting tool 15. The processing progress of the workpiece can be intuitively understood through the display 19.

[0045] Specifically, the alarm light 17 sounds an alarm when the equipment malfunctions, reminding staff to perform maintenance; the mounting slot 18 provides mounting space for the display 19, which displays the extension distance of the telescopic rod 13, thereby providing information on the machining accuracy;

[0046] Reference Figure 5 and Figure 6 A handle 24 is fixedly connected to the right side of the outer wall of the filter frame 208. The handle 24 provides a gripping point for the filter frame 208, making it easy to pull out the filter frame 208. An anti-slip sleeve 25 is fixedly connected to the middle of the outer wall of the handle 24. The anti-slip sleeve 25 increases the friction between the hand and the handle 24 and prevents the hand from slipping. A controller 27 is fixedly connected to the front side of the outer wall of the tailstock 3. The controller 27 is electrically connected to the motor 6, hydraulic rod 7, telescopic rod 13, display 19 and circulation pump 205 respectively. The controller 27 controls multiple components at the same time, so that multiple components work together to realize automated processing.

[0047] Specifically, handle 24 provides a gripping point for the hand, and pulling handle 24 allows the filter frame 208 to be easily pulled out. Anti-slip sleeve 25 increases the friction between the hand and handle 24 to prevent the hand from slipping when pulling handle 24. Controller 27 is used to control the coordinated operation between various components. The extension distance of hydraulic rod 7 and telescopic rod 13 is adjusted by controller 27 to process workpieces of different sizes.

[0048] Working Principle: Before using the device, first place the shaft-shaped workpiece on the chuck 5, which can firmly clamp the workpiece. Install the insert tool 15 on the tool holder 26. Extend the telescopic rod 13 to adjust the horizontal position of the tool holder 26 and the insert tool 15, so that the tip of the insert tool 15 is aligned with the inner wall of the workpiece, ensuring that the contact point between the insert tool 15 and the workpiece is minimized. When the motor 6 starts, the motor 6 drives the chuck 5 to rotate, preventing the insert tool 15 from wearing out severely. As the workpiece rotates, the telescopic rod 13 drives the insert tool 15 to gradually move outward. The hydraulic rod 7 drives the insert tool 15 to gradually grind the workpiece during the descent. The insert tool 15 performs gear shaping on the workpiece, gradually machining high-precision internal splines inside the shaft-shaped workpiece. When the insert tool 15 needs to be replaced, remove the bolt 11 to remove the fixing box 8, and retract the telescopic rod 13, so that the tool holder 26 returns to its initial position. Rotate the insert tool 15 to remove it. The threaded groove 14 accommodates more cutting tools, eliminating the need for readjustment after tool replacement and saving working time. Furthermore, by starting the circulation pump 205, the emulsified oil solution in the water tank 201 is pumped out and transported to the water supply pipe 206. The emulsified oil solution in the water supply pipe 206 is sprayed onto the insert tool 15 through the nozzle 207, carrying away residual heat from the insert tool 15. The protective ring 202 plays a protective role during this process, preventing the emulsified oil solution from splashing to other parts of the device. Simultaneously, the flow of the emulsified oil solution carries the debris generated during processing into the flow tank 203. The emulsified oil solution mixed with debris flows into the water tank 201 through the water outlet pipe 204. The filter frame 208 in the water tank 201 filters the debris from the emulsified oil solution. The filtered emulsified oil solution can be recycled. When too much debris accumulates, the filter frame 208 is pulled outwards to clean the debris inside the filter frame 208.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision spindle gear shaping device for shaft-shaped workpieces, comprising a frame (1), characterized in that: A tailstock (3) is fixedly connected to the bottom of the frame (1), and a spindle box (4) is fixedly connected to the top of the frame (1). A chuck (5) is generated by rotating the top of the tailstock (3). A motor (6) is fixedly connected to the bottom of the inner wall of the tailstock (3). The output end of the motor (6) passes through the tailstock (3) and is fixedly connected to the chuck (5). A hydraulic rod (7) is fixedly connected to the bottom of the spindle box (4). Threaded holes (9) are provided on both the left and right sides of the bottom of the outer wall of the hydraulic rod (7). A fixing box (8) is provided at the bottom of the hydraulic rod (7). Threaded holes (10) are provided on both the left and right sides of the outer wall of the fixing box (8). Bolts (11) are threaded to the inner wall of the second hole (10). The adjacent sides of the two bolts (11) are threaded to the first threaded hole (9). A sliding groove (12) is provided on the front side of the bottom of the bolt (11). A knife holder (26) is slidably connected to the inner wall of the sliding groove (12). A telescopic rod (13) is fixedly connected to the rear side of the inner wall of the fixed box (8). The front end of the telescopic rod (13) is fixedly connected to the knife holder (26). A threaded groove (14) is provided on the inner wall of the knife holder (26). A insert knife (15) is threaded to the inner wall of the threaded groove (14). A cooling mechanism (2) is provided on the right side of the outer wall of the tailstock (3).

2. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 1, characterized in that: The cooling mechanism (2) includes a water tank (201), which is fixedly connected to the right side of the outer wall of the tailstock (3). A flow channel (203) is provided on the top of the tailstock (3). A protective ring (202) is fixedly connected to the inner wall of the flow channel (203). A water outlet pipe (204) is connected to the right side of the inner wall of the flow channel (203). The other end of the water outlet pipe (204) is connected to the water tank (201). A circulation pump (205) is fixedly connected to the top of the water tank (201). The bottom end of the circulation pump (205) is connected to the water tank (201). A water delivery pipe (206) is connected to the output end of the circulation pump (205). A nozzle (207) is fixedly connected to the other end of the water delivery pipe (206). A filter frame (208) is slidably connected to the inner wall of the water tank (201).

3. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 1, characterized in that: The top of the spindle box (4) is fixedly connected to a mounting box (16), and the top of the mounting box (16) is fixedly connected to an alarm light (17).

4. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 1, characterized in that: The spindle box (4) has a mounting groove (18) on the front side of its outer wall, and a display (19) is fixedly connected to the inner wall of the mounting groove (18).

5. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 2, characterized in that: The outer wall of the water supply pipe (206) is fixedly connected to a pipe ring (20), and a screw (21) is threadedly connected to the rear side of the outer wall of the pipe ring (20). The pipe ring (20) is threadedly connected to the frame (1) through the screw (21).

6. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 2, characterized in that: The water tank (201) has two sliding grooves (22) on the front and back sides of its inner wall, and the filter frame (208) has two sliding strips (23) fixedly connected to the front and back sides of its outer wall. The two sliding strips (23) are slidably connected to the two sliding grooves (22) respectively.

7. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 2, characterized in that: A handle (24) is fixedly connected to the right side of the outer wall of the filter frame (208), and an anti-slip sleeve (25) is fixedly connected to the middle of the outer wall of the handle (24).

8. The high-precision internal spline gear shaping device for shaft-shaped workpieces according to claim 1, characterized in that: A controller (27) is fixedly connected to the front side of the outer wall of the tailstock (3). The controller (27) is electrically connected to the motor (6), hydraulic rod (7), telescopic rod (13), display (19) and circulation pump (205).

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