Multi-degree-of-freedom numerical control enveloping worm grinding machine

Abstract

The invention discloses a multi-degree-of-freedom numerical control enveloping worm grinding machine, and relates to the technical field of worm machining, the multi-degree-of-freedom numerical control enveloping worm grinding machine comprises a clamping mechanism, an adjusting mechanism for adjusting a grinding device is arranged on the side face of the clamping mechanism, and a grinding mechanism for grinding a worm is arranged on the adjusting mechanism. According to the worm grinding machine, the outer surface of the grinding wheel used for grinding worms is trimmed by arranging the trimming mechanism, the worms of different specifications can be ground conveniently, the grinding wheel is prevented from being replaced, and the machining efficiency is improved; the two grinding wheels are switched, the threads of the worm and the rod portion of the worm can be conveniently ground, the transmission gear is arranged to drive the two diamond wheels to move, the two diamond wheels are made to be close to each other, and grinding wheels of different sizes can be conveniently trimmed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of worm processing, in particular to a multi-degree-of-freedom numerical control enveloping worm grinder. BACKGROUND

[0002] The worm is a common part in mechanical transmission, which is usually used in cooperation with the worm gear to form a worm transmission mechanism for transmitting motion and power between space staggered shafts, and its appearance is similar to a cylinder with helical teeth on the surface, and it looks like a toothed screw in general.

[0003] At present, the outer surface of the enveloping worm needs to be ground during production, and the grinder is usually used to process the worm, and through a specific grinding motion track, the worm tooth surface that meets the enveloping principle is accurately processed to ensure the efficient meshing performance of the enveloping worm and the worm gear. At this time, when the threads of the worm are processed, the disc-shaped grinding wheel is usually used to process the threads of the worm. Since the threads of different specifications of the worm are different, the grinding wheel needs to be processed to match the threads of different worms. However, when different specifications of the worm are processed, the grinding wheel needs to be replaced during the use of most grinders, which affects the processing efficiency. To solve the above problems, the present application provides a multi-degree-of-freedom numerical control enveloping worm grinder. SUMMARY

[0004] In order to solve the problem that the grinding wheel needs to be replaced when different specifications of the worm are processed, the purpose of the present application is to provide a multi-degree-of-freedom numerical control enveloping worm grinder.

[0005] To solve the above technical problems, the present application adopts the following technical scheme: a multi-degree-of-freedom numerical control enveloping worm grinder, comprising a clamping mechanism, the side surface of the clamping mechanism is provided with an adjusting mechanism for adjusting the grinding device, the upper surface of the adjusting mechanism is provided with a grinding mechanism for grinding the worm, the grinding mechanism comprises a mounting seat, two mounting plates are fixedly installed on both sides of the mounting seat, and a grinding wheel is rotatably installed between the two mounting plates on the same side; The upper surface of the grinding mechanism is provided with a dressing mechanism for dressing the grinding wheel, the dressing mechanism comprises a fixed column, the fixed column is fixedly installed on the upper surface of the mounting seat, a moving frame is slidably sleeved on the outer surface of the fixed column, two bearing plates are slidably installed on the lower surface of the moving frame away from the fixed column, two No. 6 motors are fixedly installed on the side surfaces of the two bearing plates away from each other, a diamond wheel is fixedly installed on the output shaft of each No. 6 motor, and the side surfaces of the two diamond wheels close to each other are in movable contact with the grinding wheel.

[0006] Preferably, the clamping mechanism comprises a base, a lifting workbench is fixedly installed on one side of the upper surface of the base, a main shaft box is fixedly installed on the side of the lifting workbench, a moving plate is slidably installed on the side of the base away from the main shaft box, a tailstock is fixedly installed on the upper surface of the moving plate, a first electric cylinder is fixedly installed on the side of the base, and one end of the output shaft of the first electric cylinder is fixedly connected to the moving plate.

[0007] Preferably, the adjusting mechanism comprises a machine tool seat, a base is fixedly installed on the side of the machine tool seat, a cross plate is slidably installed on the upper surface of the machine tool seat, two second electric cylinders are fixedly installed on the side of the machine tool seat away from the base, one end of the output shaft of each of the two second electric cylinders is fixedly connected to the cross plate, a moving seat is slidably installed on the upper surface of the cross plate, an adjusting screw is rotatably installed in the cross plate, the moving seat is threadedly connected to the adjusting screw, a first motor is fixedly installed on the side of the cross plate, and one end of the output shaft of the first motor is fixedly connected to the adjusting screw.

[0008] Preferably, a rotating seat is rotatably installed on the upper surface of the moving seat, the mounting seat is rotatably arranged in the rotating seat, a first bevel gear is fixedly installed at the bottom end of the rotating seat and rotatably arranged in the moving seat, a second motor is fixedly installed on the side of the moving seat away from the base, a second bevel gear is fixedly installed on the output shaft of the second motor close to the base, and the second bevel gear meshes with the first bevel gear.

[0009] Preferably, a third motor is fixedly installed on one side in the rotating seat, a drive gear is fixedly installed on one end of the output shaft of the third motor, a half-tooth ring is fixedly installed on the outer surface of the bottom of the mounting seat, and the drive gear meshes with the half-tooth ring.

[0010] Preferably, two drive rods are rotatably installed on one side in the mounting seat, one end of each of the two drive rods away from each other is rotatably arranged in the two mounting plates respectively, a third bevel gear is fixedly installed on one end of each of the two drive rods away from each other, a fourth bevel gear is fixedly installed on one end of each of the two grinding wheels close to the drive rods, and the fourth bevel gear meshes with the third bevel gear.

[0011] Preferably, a mounting frame is fixedly installed on one side in the mounting seat, a fourth motor is fixedly installed on the side of the mounting frame away from the fourth motor, a transmission rod is rotatably installed in the mounting frame away from the fourth motor, a sixth bevel gear is fixedly installed on the outer surface of the transmission rod, a fifth bevel gear is fixedly installed on one end of the output shaft of the fourth motor close to the transmission rod, and the fifth bevel gear meshes with the sixth bevel gear.

[0012] Preferably, the outer surfaces of the two driving rods close to each other are slidably sleeved with two No. 2 couplings, the two driving rods are fixedly installed with springs, and the ends of the springs away from the driving rods are fixedly connected in the No. 2 couplings, the transmission rods are slidably installed with No. 1 couplings at both ends, and the two No. 1 couplings are movably engaged with the two No. 2 couplings respectively.

[0013] Preferably, the upper surface of the mounting frame away from the No. 4 motor is slidably installed with two support plates, the two No. 1 couplings are rotatably arranged in the support plates, the mounting frame away from the No. 4 motor is rotatably installed with a drive screw at the inner bottom, the two ends of the drive screw are threadedly connected with the support plates, the mounting frame away from the No. 4 motor is fixedly installed with a No. 5 motor at the side, and one end of the output shaft of the No. 5 motor is fixedly connected with the drive screw.

[0014] Preferably, the upper surface of the fixed column is fixedly installed with a No. 3 electric cylinder, the bottom end of the output shaft of the No. 3 electric cylinder is fixedly connected with the moving frame, the top parts of the two bearing plates are fixedly installed with tooth plates at the sides close to each other, the upper surface of the moving frame away from the fixed column is fixedly installed with a No. 7 motor, the bottom end of the output shaft of the No. 7 motor is rotatably arranged in the moving frame, the bottom end of the output shaft of the No. 7 motor is fixedly installed with a transmission gear, and the transmission gear is engaged with the two tooth plates.

[0015] Compared with the prior art, the beneficial effects of the present application are that: 1、The grinding worm is ground by the grinding worm grinding device, the grinding worm grinding device is provided with a grinding mechanism, a adjusting mechanism and a trimming mechanism, the grinding mechanism is used for grinding the worm thread of the worm, the adjusting mechanism is used for adjusting the position of the grinding mechanism, and the trimming mechanism is used for trimming the outer surface of the grinding wheel used for grinding the worm.

[0016] 2、The transmission gear drives the two diamond wheels to move, so that the two diamond wheels are close to each other, the grinding wheel can be trimmed according to the threads of worms of different specifications, and the practicability of the device is improved.

[0017] 3、The drive screw drives the No. 1 coupling to move, so that the No. 1 coupling and the No. 2 coupling on the two sides are engaged and disengaged, different grinding wheels are driven, and different grinding wheels are used to grind the worm. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present application.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the adjusting mechanism of the present application.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the moving seat of the present application.

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the grinding mechanism of the present application.

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the mounting seat of the present application.

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the finishing mechanism of the present application.

[0026] Figure 8 It is an enlarged schematic diagram of the structure at A of the present application. Figure 6

[0027] ​In the diagram: 1. Clamping mechanism; 101. Base; 102. Moving plate; 103. Tailstock; 104. Electric cylinder No. 1; 105. Lifting worktable; 106. Spindle box; 2. Adjustment mechanism; 201. Machine tool base; 202. Cross plate; 203. Moving seat; 204. Rotating seat; 205. Electric cylinder No. 2; 206. Adjusting screw; 207. Motor No. 1; 208. Bevel gear No. 1; 209. Motor No. 2; 210. Bevel gear No. 2; 211. Motor No. 3; 212. Drive gear; 3. Grinding mechanism; 301. Mounting seat; 302. Half gear ring; 303. Mounting plate; 304. Grinding wheel 305. Drive rod; 306. Bevel gear No. 3; 307. Bevel gear No. 4; 308. Mounting bracket; 309. Motor No. 4; 310. Bevel gear No. 5; 311. Transmission rod; 312. Bevel gear No. 6; 313. Support plate; 314. Coupling No. 1; 315. Coupling No. 2; 316. Drive screw; 317. Motor No. 5; 318. Spring; 4. Dressing mechanism; 401. Fixed column; 402. Moving frame; 403. Electric cylinder No. 3; 404. Bearing plate; 405. Motor No. 6; 406. Diamond wheel; 407. Gear plate; 408. Motor No. 7; 409. Transmission gear. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: Figures 1-8 As shown, the present invention provides a multi-degree-of-freedom CNC envelope worm gear grinding machine, including a clamping mechanism 1. The side of the clamping mechanism 1 is provided with an adjustment mechanism 2 for adjusting the grinding device, which is used to adjust the position and angle of the grinding device. The adjustment mechanism 2 is provided with a grinding mechanism 3 for grinding the worm gear. When in use, when the outer surface of the grinding wheel 304 contacts the outer surface of the worm gear, the grinding wheel 304 grinds the worm gear. The grinding mechanism 3 includes a mounting base 301. Two mounting plates 303 are fixedly mounted on both sides of the mounting base 301, and a grinding wheel 304 is rotatably mounted between the two mounting plates 303 on the same side. The upper surface of the grinding mechanism 3 is provided with a dressing mechanism 4 for dressing the grinding wheel 304. In use, the two diamond wheels 406 are in contact with the outer surface of the grinding wheel 304 to dress the outer surface of the grinding wheel 304, so that different specifications of the worm can be ground conveniently. The dressing mechanism 4 comprises a fixed column 401 fixedly installed on the upper surface of the mounting seat 301. The outer surface of the fixed column 401 is slidably sleeved with a moving frame 402. The moving frame 402 is slidably installed with two bearing plates 404 on the lower surface away from the fixed column 401. The mutually away sides of the two bearing plates 404 are fixedly installed with two No. 6 motors 405. The output shafts of the two No. 6 motors 405 are fixedly installed with the diamond wheels 406 on the mutually close ends. The mutually close sides of the two diamond wheels 406 are in movable contact with the grinding wheel 304.

[0030] The clamping mechanism 1 comprises a base 101. The upper surface of the base 101 is fixedly installed with a lifting workbench 105 on one side. The side surface of the lifting workbench 105 is fixedly installed with a main shaft box 106. The upper surface of the base 101 is slidably installed with a moving plate 102 away from the main shaft box 106. The upper surface of the moving plate 102 is fixedly installed with a tailstock 103. The side surface of the base 101 is fixedly installed with a No. 1 electric cylinder 104. One end of the output shaft of the No. 1 electric cylinder 104 is fixedly connected to the moving plate 102.

[0031] Through the above technical scheme, the No. 1 electric cylinder 104 can drive the tailstock 103 to move.

[0032] The adjusting mechanism 2 comprises a machine tool seat 201. The side surface of the machine tool seat 201 is fixedly installed with a base 101. The upper surface of the machine tool seat 201 is slidably installed with a cross plate 202. The side surface of the machine tool seat 201 away from the base 101 is fixedly installed with two No. 2 electric cylinders 205. One end of the output shaft of the two No. 2 electric cylinders 205 close to the base 101 is fixedly connected to the cross plate 202. The upper surface of the cross plate 202 is slidably installed with a moving seat 203. The cross plate 202 is rotatably installed with an adjusting screw 206. The moving seat 203 is threadedly connected to the adjusting screw 206. The side surface of the cross plate 202 is fixedly installed with a No. 1 motor 207. One end of the output shaft of the No. 1 motor 207 is fixedly connected to the adjusting screw 206.

[0033] Through the above technical scheme, the No. 2 electric cylinder 205 and the No. 1 motor 207 can drive the moving seat 203 to move.

[0034] The upper surface of the moving base 203 is rotatably provided with a rotating base 204, and the mounting base 301 is rotatably arranged in the rotating base 204. The bottom end of the rotating base 204 is fixedly provided with a first bevel gear 208, and the first bevel gear 208 is rotatably arranged in the moving base 203. The side of the moving base 203 away from the base 101 is fixedly provided with a second motor 209. The output shaft of the second motor 209 is fixedly provided with a second bevel gear 210 at the end close to the base 101, and the second bevel gear 210 is engaged with the first bevel gear 208.

[0035] By adopting the above technical scheme, the second motor 209 can drive the moving base 203 to rotate.

[0036] The rotating base 204 is fixedly provided with a third motor 211 on one side. The output shaft of the third motor 211 is fixedly provided with a drive gear 212 at one end. The bottom outer surface of the mounting base 301 is fixedly provided with a half-tooth ring 302, and the drive gear 212 is engaged with the half-tooth ring 302.

[0037] By adopting the above technical scheme, the third motor 211 can drive the mounting base 301 to rotate.

[0038] The mounting base 301 is rotatably provided with two drive rods 305 on one side. The mutually remote ends of the two drive rods 305 are rotatably arranged in the two mounting plates 303, respectively. The mutually remote ends of the two drive rods 305 are fixedly provided with third bevel gears 306, respectively. The ends of the two grinding wheels 304 close to the drive rods 305 are fixedly provided with fourth bevel gears 307, respectively. The fourth bevel gears 307 are engaged with the third bevel gears 306.

[0039] By adopting the above technical scheme, the drive rod 305 can drive the grinding wheel 304 to rotate.

[0040] The mounting base 301 is fixedly provided with a mounting frame 308 on one side. The side of the mounting frame 308 is fixedly provided with a fourth motor 309. The side of the mounting frame 308 away from the fourth motor 309 is rotatably provided with a transmission rod 311. The outer surface of the transmission rod 311 is fixedly provided with a sixth bevel gear 312. The output shaft of the fourth motor 309 is fixedly provided with a fifth bevel gear 310 at the end close to the transmission rod 311. The fifth bevel gear 310 is engaged with the sixth bevel gear 312.

[0041] By adopting the above technical scheme, the fourth motor 309 can drive the transmission rod 311 to rotate.

[0042] The outer surfaces of the two ends of the two driving rods 305 close to each other are slidably sleeved with the second shaft couplings 315, the two ends of the two driving rods 305 are fixedly installed with springs 318, and the ends of the springs 318 away from the driving rods 305 are fixedly connected in the second shaft couplings 315, the two ends of the transmission rod 311 are slidably installed with the first shaft couplings 314, and the two first shaft couplings 314 are movably engaged with the two second shaft couplings 315 respectively.

[0043] Through the above technical scheme, the transmission rod 311 can drive the driving rod 305 to rotate.

[0044] The upper surface of the mounting frame 308 away from the fourth motor 309 is slidably installed with two supporting plates 313, the two first shaft couplings 314 are rotatably arranged in the supporting plates 313, the inner bottom of the mounting frame 308 away from the fourth motor 309 is rotatably installed with a driving screw 316, the two ends of the driving screw 316 are threadedly connected with the supporting plates 313, the side of the mounting frame 308 away from the fourth motor 309 is fixedly installed with a fifth motor 317, and one end of the output shaft of the fifth motor 317 is fixedly connected to the driving screw 316.

[0045] Through the above technical scheme, the fifth motor 317 can drive the first shaft coupling 314 to move.

[0046] The upper surface of the fixed column 401 is fixedly installed with a third electric cylinder 403, the bottom end of the output shaft of the third electric cylinder 403 is fixedly connected to the moving frame 402, the sides of the top portions of the two bearing plates 404 close to each other are fixedly installed with tooth plates 407, the upper surface of the moving frame 402 away from the fixed column 401 is fixedly installed with a seventh motor 408, the bottom end of the output shaft of the seventh motor 408 is rotatably arranged in the moving frame 402, the bottom end of the output shaft of the seventh motor 408 is fixedly installed with a transmission gear 409, and the transmission gear 409 is engaged with the two tooth plates 407 to drive the bearing plates 404 to move.

[0047] Through the above technical scheme, the seventh motor 408 can drive the bearing plates 404 to move.

[0048] Working principle: first, the seventh motor 408 drives the transmission gear 409 to rotate, the transmission gear 409 drives the tooth plate 407 to move, the tooth plate 407 drives the bearing plate 404 to move, the bearing plate 404 drives the emery wheel 406 to move, the sides of the emery wheel 406 close to each other are in contact with the outer surfaces of the grinding wheels 304, the outer surfaces of the grinding wheels 304 are trimmed, and different specifications of the worm gears are conveniently ground. Secondly, one end of the worm is clamped by the spindle box 106, and then the first electric cylinder 104 is opened to drive the moving plate 102 to move, the tail seat 103 is driven to move by the moving plate 102, the tail pin of the tail seat 103 and the other end of the worm are in contact, and the worm is clamped and fixed; Then, the second electric cylinder 205 and the first motor 207 are opened to drive the moving seat 203 to move, the rotating seat 204 is driven to move by the movement of the moving seat 203, the installation seat 301 is moved by the movement device of the rotating seat 204, the grinding wheel 304 is moved by the movement of the installation seat 301, the position of the grinding wheel 304 is adjusted, and at the same time, the second motor 209 and the third motor 211 are opened, at this time, the rotating seat 204 is driven to rotate by the second motor 209, the installation seat 301 is driven to rotate by the rotation of the rotating seat 204, and the installation seat 301 is driven to rotate by the third motor 211, so that the angle of the grinding wheel 304 is adjusted, and the worm thread is conveniently ground; Finally, when the two ends of the worm need to be ground, the rotating seat 204 is driven to rotate by the second motor 209, the installation seat 301 is driven to rotate by the rotation of the rotating seat 204, so that the positions of the two grinding wheels 304 are exchanged, at this time, the fifth motor 317 is opened to drive the driving screw 316 to rotate, the support plate 313 is driven to move by the rotation of the driving screw 316, the first coupling 314 is driven to move by the movement of the support plate 313, the first coupling 314 on one side is engaged with the second coupling 315, and the first coupling 314 on the other side is disengaged from the second coupling 315, at this time, the fourth motor 309 is opened to drive the grinding wheel 304 to rotate, and the two ends of the worm are ground.

[0049] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A multi-degree-of-freedom numerically controlled enveloping worm grinder comprising a clamping mechanism (1), characterized in that: The side of the clamping mechanism (1) is provided with an adjusting mechanism (2) for adjusting the grinding device, and the upper portion of the adjusting mechanism (2) is provided with a grinding mechanism (3) for grinding the worm, and the grinding mechanism (3) comprises a mounting seat (301), two mounting plates (303) are fixedly installed on the two sides of the mounting seat (301), and a grinding wheel (304) is rotatably installed between the two mounting plates (303) on the same side. The upper surface of the grinding mechanism (3) is provided with a dressing mechanism (4) for dressing the grinding wheel (304), and the dressing mechanism (4) comprises a fixed column (401) fixedly installed on the upper surface of the mounting seat (301), a moving frame (402) is slidably arranged on the outer surface of the fixed column (401), two bearing plates (404) are slidably installed on the lower surface of the moving frame (402) away from the fixed column (401), two No. 6 motors (405) are fixedly installed on the sides of the two bearing plates (404) away from each other, a diamond wheel (406) is fixedly installed on the output shaft of each No. 6 motor (405) close to each other, and the sides of the two diamond wheels (406) close to each other are in movable contact with the grinding wheel (304).

2. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 1, wherein, The clamping mechanism (1) comprises a base (101), a lifting workbench (105) is fixedly installed on one side of the upper surface of the base (101), a main shaft box (106) is fixedly installed on the side of the lifting workbench (105), a moving plate (102) is slidably installed on the side of the base (101) away from the main shaft box (106), a tailstock (103) is fixedly installed on the upper surface of the moving plate (102), and a No. 1 electric cylinder (104) is fixedly installed on the side of the base (101), and one end of the output shaft of the No. 1 electric cylinder (104) is fixedly connected to the moving plate (102).

3. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 1 wherein, The adjusting mechanism (2) comprises a machine tool base (201), and the machine tool base (201) is fixedly installed on the base (101), a cross plate (202) is slidably installed on the upper surface of the machine tool base (201), two No. 2 electric cylinders (205) are fixedly installed on the side of the machine tool base (201) away from the base (101), one end of the output shaft of each No. 2 electric cylinder (205) close to the base (101) is fixedly connected to the cross plate (202), a moving seat (203) is slidably installed on the upper surface of the cross plate (202), an adjusting screw (206) is rotatably installed in the cross plate (202), the moving seat (203) is threadedly connected to the adjusting screw (206), a No. 1 motor (207) is fixedly installed on the side of the cross plate (202), and one end of the output shaft of the No. 1 motor (207) is fixedly connected to the adjusting screw (206).

4. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 3, wherein, The upper surface of the moving seat (203) is rotationally installed with a rotating seat (204), and the mounting seat (301) is rotationally arranged in the rotating seat (204), the bottom end of the rotating seat (204) is fixedly installed with a first bevel gear (208), and the first bevel gear (208) is rotationally arranged in the moving seat (203), the side of the moving seat (203) away from the base (101) is fixedly installed with a second motor (209), the output shaft of the second motor (209) is fixedly installed with a second bevel gear (210) at the end close to the base (101), and the second bevel gear (210) is engaged with the first bevel gear (208).

5. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 4, wherein, The rotating seat (204) is fixedly installed with a third motor (211) on one side, the output shaft of the third motor (211) is fixedly installed with a drive gear (212) at one end, and the bottom outer surface of the mounting seat (301) is fixedly installed with a half-tooth ring (302), and the drive gear (212) is engaged with the half-tooth ring (302).

6. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 1 wherein, The mounting seat (301) is rotationally installed with two drive rods (305) on one side, and the ends of the two drive rods (305) away from each other are respectively rotationally arranged in the two mounting plates (303), the ends of the two drive rods (305) away from each other are fixedly installed with third bevel gears (306), and the ends of the two drive rods (305) close to the drive rods (305) are fixedly installed with fourth bevel gears (307), and the fourth bevel gears (307) are engaged with the third bevel gears (306).

7. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 1 wherein, The mounting seat (301) is fixedly installed with a mounting frame (308) on one side, the side of the mounting frame (308) is fixedly installed with a fourth motor (309), the side of the mounting frame (308) away from the fourth motor (309) is rotationally installed with a transmission rod (311), the outer surface of the transmission rod (311) is fixedly installed with a sixth bevel gear (312), the output shaft of the fourth motor (309) is fixedly installed with a fifth bevel gear (310) at the end close to the transmission rod (311), and the fifth bevel gear (310) is engaged with the sixth bevel gear (312).

8. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 6 wherein, The outer surfaces of the ends of the two drive rods (305) close to each other are slidably sleeved with second shaft couplings (315), the ends of the two drive rods (305) away from each other are fixedly installed with springs (318), and the ends of the springs (318) away from the drive rods (305) are fixedly connected in the second shaft couplings (315), and the transmission rod (311) is slidably installed with a first shaft coupling (314) at both ends, and the two first shaft couplings (314) are movably engaged with the two second shaft couplings (315).

9. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 7 wherein, The upper surface of the mounting frame (308) far from the fourth motor (309) side is slidably provided with two support plates (313), and two first couplings (314) are rotatably arranged in the support plates (313); the inner bottom of the mounting frame (308) far from the fourth motor (309) side is rotatably provided with a drive screw (316), and both ends of the drive screw (316) are threadedly connected with the support plates (313); the side of the mounting frame (308) far from the fourth motor (309) side is fixedly provided with a fifth motor (317), and one end of the output shaft of the fifth motor (317) is fixedly connected with the drive screw (316).

10. A multi-degree of freedom CNC enveloping worm grinder as claimed in claim 1 wherein, The upper surface of the fixed column (401) is fixedly provided with a third electric cylinder (403), and the bottom end of the output shaft of the third electric cylinder (403) is fixedly connected with the moving frame (402); the mutually close sides of the top of two bearing plates (404) are fixedly provided with toothed plates (407); the upper surface of the moving frame (402) far from the fixed column (401) side is fixedly provided with a seventh motor (408), and the bottom end of the output shaft of the seventh motor (408) is rotatably arranged in the moving frame (402); the bottom end of the output shaft of the seventh motor (408) is fixedly provided with a transmission gear (409), and the transmission gear (409) is engaged with the two toothed plates (407).

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