Milling mechanism for composite lathe

Abstract

The invention relates to a milling mechanism for a composite lathe in the technical field of machining, the milling mechanism comprises a machine shell, a first supporting piece, a first connecting piece, a first rotating motor, a tapping assembly, a first milling assembly, a second milling assembly and a cutting assembly, the first supporting piece, the first connecting piece, the first rotating motor, the tapping assembly, the first milling assembly, the second milling assembly and the cutting assembly are installed in the machine shell, and the tapping assembly comprises a tapping chuck, a first sliding sleeve, a first supporting rod and a second driving shaft; a spring is installed at the end, close to the tapping chuck, of the first limiting column, a key position groove is formed in the first supporting rod, and clamping blocks matched with each other are arranged between the second driving shaft and the key position groove. The natural force of the spring can provide a buffer to protect the screw tap from overlarge impact, so that the screw tap is prevented from being broken. And on the other hand, the pressure can be adjusted more flexibly when the tapping head is in contact with the surface of the workpiece due to the flexibility of the spring, and the machining precision and quality can be improved.

Description

Technical Field

[0001] The present invention relates to the field of machining, and particularly to a milling mechanism for a compound lathe. Background Art

[0002] A milling machine refers to a device that uses a rotating multi-edge tool to cut a workpiece, which is a high-precision machining method. The machine tools for milling include horizontal milling machines or vertical milling machines, and there are also large gantry milling machines. These machine tools can be ordinary machine tools or numerical control machine tools.

[0003] A tapping machine is a machining device that processes internal threads, screws or called thread taps on the inner side of holes of various parts with through holes or blind holes of different specifications, such as machine part shells, equipment end faces, nuts, flange plates, etc. A tapping machine is also called a thread tapping machine, a screw tapping machine, an automatic tapping machine, etc.

[0004] Chinese Patent with Publication No. CN218396884U discloses a milling and tapping machine for metal workpieces, which improves the use effect of the equipment and the convenience of use; it includes a base, a rotating rod, a collection box, a fixing device, a filtering device and a discharging device. The base is installed on the fixing seat of the equipment through the fixing device, the rotating rod is installed on the base through a bearing, a collection box is installed on the rotating rod, a filtering device is installed on the collection box, and a discharging device is also installed on the collection box; the fixing device is used to install and fix the equipment; the filtering device is used to collect and filter the debris and coolant generated during the milling and tapping of the workpiece; the discharging device is used to discharge the coolant collected in the collection box. However, the milling and tapping machine still has the following problems: during the tapping process of the existing milling and tapping machine, when the thread reaches the bottom or the descending length of the machine spindle is too large, the tap is easily subjected to excessive impact, which affects its service life and even easily causes the tap to break, affecting the working efficiency. Summary of the Invention

[0005] The object of the present invention is to solve the above defects and provide a milling mechanism for a compound lathe.

[0006] The object of the present invention is achieved in the following manner: A milling mechanism for a compound lathe, comprising a machine housing, a first support member installed inside the machine housing, a first connecting member, a first rotating motor, a tapping assembly, a first milling assembly, a second milling assembly, and a cutting assembly. The limiting seat is sleeved on the first milling assembly, the second milling assembly, and the tapping assembly. The first support member is sleeved on the first rotating motor. The first support member has a hollow structure. The first rotating motor is located in the middle of the first support member and is provided with a first driving shaft. The first connecting member is installed between the limiting seat and the first support member. The tapping assembly includes a tapping chuck, a first sliding sleeve, a first support rod, a second driving shaft, a second support member, a second sliding sleeve, a limiting block, a first limiting column, and a second limiting column. The first sliding sleeve and the second sliding sleeve are respectively slidably sleeved on both ends of the first support rod. The first sliding sleeve is fixedly installed inside the limiting seat. The second support member is fixedly installed on the second sliding sleeve, and one end of the second support member away from the second sliding sleeve is connected to the bottom of the first rotating motor. The tapping chuck and the limiting block are respectively installed at both ends of the first support rod. The first limiting column and the second limiting column are respectively installed at both ends of the limiting block. A spring is installed at one end of the first limiting column close to the tapping chuck. One end of the first limiting column close to the spring penetrates to the other side of the second support member. The second driving shaft is sleeved on the first support rod, and the second driving shaft is located between the first sliding sleeve and the second sliding sleeve. A keyway is provided on the first support rod, and a mutually matching block is provided between the second driving shaft and the keyway.

[0007] Further, the first milling assembly includes a first milling chuck, a first milling tool shank, and a third driving shaft. The first milling chuck is installed at one end of the first milling tool shank. The third driving shaft is sleeved at the end of the first milling tool shank away from the first milling chuck. The workpiece can be milled from one side of the spindle through the first milling assembly.

[0008] Further, the second milling assembly includes a second milling chuck, a second milling tool shank, and a fourth driving shaft. The second milling chuck is installed at one end of the second milling tool shank. The fourth driving shaft is sleeved at the end of the second milling tool shank away from the second milling chuck. The workpiece can be milled from one side of the spindle through the second milling assembly.

[0009] Further, the cutting assembly includes a cutting blade, a cutting tool head, a cutting tool handle, a fifth drive shaft, a bracket, a sixth drive shaft, a first connecting rod, a first transmission shaft, a second transmission shaft, a second connecting rod, and a seventh drive shaft. The bracket is L-shaped. The cutting blade is mounted on the cutting tool head. The cutting tool handle, the first connecting rod, and the second connecting rod are all mounted on the bracket. The fifth drive shaft and the cutting tool head are respectively mounted at two ends of the cutting tool handle. The sixth drive shaft and the first transmission shaft are respectively mounted at two ends of the first connecting rod. The second transmission shaft and the seventh drive shaft are respectively mounted at two ends of the second connecting rod. The first transmission shaft is meshed and connected with the second transmission shaft. The workpiece can be cut from one side of the main shaft through the cutting assembly.

[0010] Further, a first mating part and a second mating part are provided on the second drive shaft, a third mating part and a fourth mating part are provided on the third drive shaft, and a fifth mating part and a sixth mating part are provided on the fourth drive shaft.

[0011] Further, a first drive belt is installed between the first drive shaft and the first mating part. The first drive belt is meshed and connected with both the first drive shaft and the first mating part. A second drive belt is installed between the second mating part and the fourth mating part. The second drive belt is meshed and connected with both the second mating part and the fourth mating part. A third drive belt is installed between the third mating part and the fifth mating part. The third drive belt is meshed and connected with both the third mating part and the fifth mating part. A fourth drive belt is installed between the sixth mating part and the seventh drive shaft. The fourth drive belt is meshed and connected with both the sixth mating part and the seventh drive shaft. A fifth drive belt is installed between the fifth drive shaft and the sixth drive shaft. The fifth drive belt is meshed and connected with both the sixth mating part and the seventh drive shaft.

[0012] Further, two bearings extend inward on one side of the limit seat. The middle parts of the two bearings are respectively matched with the first milling tool handle and the second milling tool handle, and the bearings respectively assist the first milling assembly and the second milling assembly to rotate.

[0013] Further, a steering adjustment assembly is installed on one side of the first support member inside the machine shell. The steering adjustment assembly includes a steering adjustment motor and a steering adjustment rod. The steering adjustment rod is movably installed at one end of the steering adjustment motor. The end of the steering adjustment rod away from the steering adjustment motor penetrates to the bottom of the limit seat. By driving the steering adjustment rod to rotate through the adjustment motor, the angle of the limit seat can be adjusted.

[0014] Furthermore, threaded holes for positioning the first limiting post and the second limiting post are provided on both sides of the limiting block. Bolts can adjust the positions of the first limiting post and the second limiting post through the threaded holes, so as to ensure that the first limiting post and the second limiting post reach the required lengths.

[0015] The beneficial effects produced by the present invention are as follows: By providing the first support rod with spring retraction, on the one hand, it is beneficial to protect the tap. When the thread is tapped to the end or the descending length of the machine spindle is too large, the natural force of the spring can provide a buffer to protect the tap from excessive impact, thereby preventing the tap from breaking. On the other hand, the elasticity of the spring enables the tapping head to more flexibly adjust the pressure when contacting the workpiece surface, ensuring that the tapping head can smoothly enter the workpiece interior for thread processing, and at the same time not applying excessive force to avoid damaging the workpiece, which helps to improve the processing accuracy and quality. On the third hand, using the tapping method of retracting with the natural force of the spring can make the tapping process smoother and reduce the downtime caused by tap breakage or workpiece damage. In addition, the elasticity of the spring can also help quickly adjust the length of the tapping head to adapt to the length requirements of different workpieces, thereby improving production efficiency. Brief Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of a milling mechanism for a compound lathe according to the present invention; Figure 2 is a three-dimensional structural schematic diagram of a milling mechanism for a compound lathe according to the present invention; Figure 3 is a three-dimensional structural schematic diagram of a milling mechanism for a compound lathe according to the present invention; Figure 4 is a three-dimensional structural schematic diagram of a milling mechanism for a compound lathe according to the present invention; Figure 5 is a three-dimensional structural schematic diagram of a milling mechanism for a compound lathe according to the present invention; Figure 6 is a three-dimensional structural schematic diagram of a milling mechanism for a compound lathe according to the present invention; Figure 7 is a left view of a milling mechanism for a compound lathe according to the present invention; Figure 8 is a right view of a milling mechanism for a compound lathe according to the present invention; Figure 9 of the present invention Figure 8 is a sectional view taken along A-A; Figure 10 is a top view of a milling mechanism for a compound lathe according to the present invention; Figure 11 is a bottom view of a milling mechanism for a compound lathe according to the present invention; Figure 12 This is a three-dimensional structural schematic diagram of a tapping component in a milling mechanism for a compound lathe according to the present invention; Figure 13 This is the front view of a tapping component in a milling mechanism for a compound lathe according to the present invention.

[0017] In the figure, 1. Machine housing; 2. First support member; 3. First connecting member; 4. First rotating motor; 5. First driving shaft; 6. Tapping chuck; 7. First sliding sleeve; 8. First support rod; 9. Second driving shaft; 10. Second support member; 11. Second sliding sleeve; 12. Limit block; 13. First limit post; 14. Second limit post; 15. Spring; 16. Keyway groove; 17. Block; 18. First milling chuck; 19. First milling cutter handle; 20. Third driving shaft; 21. Second milling chuck; 22. Second milling cutter handle; 23. Fourth driving shaft; 24. Cutting blade; 25. Cutting tool head; 26. Cutting tool handle; 27. Fifth driving shaft; 28. Bracket; 29. Sixth driving shaft; 30. First connecting rod; 31. First transmission shaft; 32. Second transmission shaft; 33. Second connecting rod; 34. Seventh driving shaft; 35. First mating part; 36. Second mating part; 37. Third mating part; 38. Fourth mating part; 39. Fifth mating part; 40. Sixth mating part; 41. First drive belt; 42. Second drive belt; 43. Third drive belt; 44. Fourth drive belt; 45. Fifth drive belt; 46. Bearing; 47. Steering adjustment motor; 48. Steering adjustment rod; 49. Threaded hole; 50. Limit seat. Detailed implementation mode

[0018] For the convenience of understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation mode does not limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0019] Please refer to Figures 1 - 13 , a milling mechanism for a compound lathe in its specific implementation, includes a machine housing 1, a first support member 2, a first connecting member 3, a first rotating motor 4, a tapping component, a first milling component, a second milling component and a cutting component installed in the machine housing 1. The limit seat 50 is sleeved on the first milling component, the second milling component and the tapping component. The first support member 2 is sleeved on the first rotating motor 4. The first support member 2 has a hollow structure. The first rotating motor 4 is installed with a first driving shaft 5 in the middle of the first support member 2. The first connecting member 3 is installed between the limit seat 50 and the first support member 2.

[0020] The tapping assembly includes a tapping chuck 6, a first sliding sleeve 7, a first support rod 8, a second drive shaft 9, a second support member 10, a second sliding sleeve 11, a limit block 12, a first limit post 13 and a second limit post 14. The first sliding sleeve 7 and the second sliding sleeve 11 are respectively slidably sleeved at both ends of the first support rod 8. The first sliding sleeve 7 is fixedly installed in the limit seat 50. The second support member 10 is fixedly installed on the second sliding sleeve 11, and one end of the second support member 10 away from the second sliding sleeve 11 is connected to the bottom of the first rotary motor 4. The tapping chuck 6 and the limit block 12 are respectively installed at both ends of the first support rod 8. The first limit post 13 and the second limit post 14 are respectively installed at both ends of the limit block 12. A spring 15 is installed at one end of the first limit post 13 close to the tapping chuck 6. One end of the first limit post 13 close to the spring 15 penetrates to the other side of the second support member 10. The second drive shaft 9 is sleeved on the first support rod 8, and the second drive shaft 9 is located between the first sliding sleeve 7 and the second sliding sleeve 11. A keyway 16 is provided on the first support rod 8, and a matching block 17 is provided between the second drive shaft 9 and the keyway 16.

[0021] The first milling assembly includes a first milling chuck 18, a first milling tool shank 19 and a third drive shaft 20. The first milling chuck 18 is installed at one end of the first milling tool shank 19. The third drive shaft 20 is sleeved at the end of the first milling tool shank 19 away from the first milling chuck 18. The workpiece can be milled from one side of the main shaft through the first milling assembly.

[0022] The second milling assembly includes a second milling chuck 21, a second milling tool shank 22 and a fourth drive shaft 23. The second milling chuck 21 is installed at one end of the second milling tool shank 22. The fourth drive shaft 23 is sleeved at the end of the second milling tool shank 22 away from the second milling chuck 21. The workpiece can be milled from one side of the main shaft through the second milling assembly.

[0023] The cutting assembly includes a cutting blade 24, a cutting tool head 25, a cutting tool handle 26, a fifth drive shaft 27, a bracket 28, a sixth drive shaft 29, a first connecting rod 30, a first transmission shaft 31, a second transmission shaft 32, a second connecting rod 33, and a seventh drive shaft 34. The bracket 28 is L-shaped. The cutting blade 24 is mounted on the cutting tool head 25. The cutting tool handle 26, the first connecting rod 30, and the second connecting rod 33 are all mounted on the bracket 28. The fifth drive shaft 27 and the cutting tool head 25 are respectively mounted at both ends of the cutting tool handle 26. The sixth drive shaft 29 and the first transmission shaft 31 are respectively mounted at both ends of the first connecting rod 30. The second transmission shaft 32 and the seventh drive shaft 34 are respectively mounted at both ends of the second connecting rod 33. The first transmission shaft 31 is meshed and connected with the second transmission shaft 32. The workpiece can be cut from one side of the main shaft through the cutting assembly.

[0024] A first mating part 35 and a second mating part 36 are provided on the second drive shaft 9. A third mating part 37 and a fourth mating part 38 are provided on the third drive shaft 20. A fifth mating part 39 and a sixth mating part 40 are provided on the fourth drive shaft 23.

[0025] A first drive belt 41 is installed between the first drive shaft 5 and the first mating part 35. The first drive belt 41 is meshed and connected with both the first drive shaft 5 and the first mating part 35. A second drive belt 42 is installed between the second mating part 36 and the fourth mating part 38. The second drive belt 42 is meshed and connected with both the second mating part 36 and the fourth mating part 38. A third drive belt 43 is installed between the third mating part 37 and the fifth mating part 39. The third drive belt 43 is meshed and connected with both the third mating part 37 and the fifth mating part 39. A fourth drive belt 44 is installed between the sixth mating part 40 and the seventh drive shaft 34. The fourth drive belt 44 is meshed and connected with both the sixth mating part 40 and the seventh drive shaft 34. A fifth drive belt 45 is installed between the fifth drive shaft 27 and the sixth drive shaft 29. The fifth drive belt 45 is meshed and connected with both the sixth mating part 40 and the seventh drive shaft 34.

[0026] Two bearings 46 extend inwards on one side of the limit seat 50. The middle parts of the two bearings 46 are respectively matched with the first milling tool handle 19 and the second milling tool handle 22. The first milling assembly and the second milling assembly are respectively assisted to rotate through the bearings 46.

[0027] A steering adjustment assembly is installed on one side of the first support member 2 inside the casing 1. The steering adjustment assembly includes a steering adjustment motor 47 and a steering adjustment rod 48. The steering adjustment rod 48 is movably installed at one end of the steering adjustment motor 47. The end of the steering adjustment rod 48 away from the steering adjustment motor 47 penetrates to the bottom of the limit seat 50. By adjusting the motor to drive the steering adjustment rod 48 to rotate, the angle of the limit seat 50 can be adjusted. Threaded holes 49 for positioning the first limit post 13 and the second limit post 14 are provided on both sides of the limit block 12. Bolts can adjust the positions of the first limit post 13 and the second limit post 14 through the threaded holes 49, so as to ensure that the first limit post 13 and the second limit post 14 reach the required lengths.

[0028] The working principle of the embodiment of the present invention is as follows: When milling a workpiece, the first rotating motor 4 drives the first driving shaft 5 to rotate. The first driving shaft 5 drives the first engaging portion 35 to rotate through the first driving belt 41, thereby driving the second driving shaft 9 to rotate. The first support rod 8 is provided with a keyway 16, and a block 17 engaged with the second driving shaft 9 is installed on the keyway 16, so that the first support rod 8 can extend forward to tap the workpiece during rotation, and retract by the natural force of the spring 15 after the tap is used. The second engaging portion 36 on the second driving shaft 9 drives the fourth engaging portion 38 to rotate through the first driving belt 41, thereby driving the third driving shaft 20 to rotate. The first milling cutter handle 19 is driven by the third driving shaft 20 to mill the workpiece. The third engaging portion 37 on the third driving shaft 20 drives the fifth engaging portion 39 to rotate through the third driving belt 43, thereby driving the fourth driving shaft 23 to rotate. The second milling cutter handle 22 is driven by the fourth driving shaft 23 to mill the workpiece. The sixth engaging portion 40 on the fourth driving shaft 23 drives the seventh driving shaft 34 to rotate through the fourth driving belt 44. The seventh driving shaft 34 drives the second transmission shaft 32 to rotate through the second limit post 14, thereby driving the first transmission shaft 31 to rotate. The first transmission shaft 31 drives the sixth driving shaft 29 to rotate through the first limit post 13. The sixth driving shaft 29 drives the fifth driving shaft 27 to rotate through the fifth driving belt 45. The fifth driving shaft 27 drives the cutting tool head 25 to rotate through the cutting tool handle 26, thereby driving the cutting blade 24 to cut the workpiece.

[0029] The above content is a further detailed description of the present invention in combination with specific further embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as the protection scope of the present invention.

Claims

1. A milling mechanism for a compound lathe, comprising a housing, a first support member installed in the housing, a first connecting member, a limit seat, a first rotating motor, a tapping assembly, a first milling assembly, a second milling assembly and a cutting assembly, wherein the limit seat is mounted on the first milling assembly, the second milling assembly and the tapping assembly, the first support member is mounted on the first rotating motor, the first support member is a hollow structure, the first rotating motor is located in the middle of the first support member and is equipped with a first driving shaft, the first connecting member is installed between the limit seat and the first support member, and is characterized in that: The tapping assembly includes a tapping chuck, a first sleeve, a first support rod, a second drive shaft, a second support member, a second sleeve, a limit block, a first limit column and a second limit column. The first sleeve and the second sleeve are respectively slidably mounted on the two ends of the first support rod, the first sleeve is fixedly mounted in the limit seat, the second support member is fixedly mounted on the second sleeve, and the end of the second support member away from the second sleeve is connected to the bottom of the first rotating motor, the tapping chuck and the limit block are respectively mounted on the two ends of the first support rod, the first limit column and the second limit column are respectively mounted on the two ends of the limit block, a spring is installed at one end of the first limit column close to the tapping chuck, and one end of the first limit column close to the spring passes through the other side of the second support member, the second drive shaft is mounted on the first support rod, and the second drive shaft is located between the first sleeve and the second sleeve, a key slot is provided on the first support rod, and a block that cooperates with each other is provided between the second drive shaft and the key slot.

2. A milling mechanism for a compound lathe according to claim 1, characterized in that: The first milling assembly comprises a first milling chuck, a first milling tool holder and a third drive shaft. The first milling chuck is mounted on one end of the first milling tool holder, and the third drive shaft is sleeved on one end of the first milling tool holder away from the first milling chuck.

3. A milling mechanism for a compound lathe according to claim 2, characterized in that: The second milling assembly includes a second milling chuck, a second milling tool holder and a fourth drive shaft. The second milling chuck is installed at one end of the second milling tool holder, and the fourth drive shaft is sleeved on one end of the second milling tool holder away from the second milling chuck.

4. A milling mechanism for a compound lathe according to claim 3, characterized in that: The cutting assembly includes a cutting blade, a cutting head, a cutting handle, a fifth drive shaft, a bracket, a sixth drive shaft, a first connecting rod, a first transmission shaft, a second transmission shaft, a second connecting rod and a seventh drive shaft. The bracket is L-shaped, the cutting blade is on the cutting head, the cutting handle, the first connecting rod and the second connecting rod are all installed on the bracket, the fifth drive shaft and the cutting head are respectively installed at two ends of the cutting handle, the sixth drive shaft and the first transmission shaft are respectively installed at two ends of the first connecting rod, the second transmission shaft and the seventh drive shaft are respectively installed at two ends of the second connecting rod, and the first transmission shaft is meshed with the second transmission shaft.

5. A milling mechanism for a compound lathe according to claim 4, characterized in that: The second driving shaft is provided with a first matching portion and a second matching portion, the third driving shaft is provided with a third matching portion and a fourth matching portion, and the fourth driving shaft is provided with a fifth matching portion and a sixth matching portion.

6. A milling mechanism for a compound lathe according to claim 5, characterized in that: A first driving belt is installed between the first driving shaft and the first matching portion, and the first driving belt is meshed with the first driving shaft and the first matching portion. A second driving belt is installed between the second matching portion and the fourth matching portion, and the second driving belt is meshed with the second matching portion and the fourth matching portion. A third driving belt is installed between the third matching portion and the fifth matching portion, and the third driving belt is meshed with the third matching portion and the fifth matching portion. A fourth driving belt is installed between the sixth matching portion and the seventh driving shaft, and the fourth driving belt is meshed with the sixth matching portion and the seventh driving shaft. A fifth driving belt is installed between the fifth driving shaft and the sixth driving shaft, and the fifth driving belt is meshed with the sixth matching portion and the seventh driving shaft.

7. A milling mechanism for a compound lathe according to claim 3, characterized in that: Two bearings are extended inwardly from one side of the limiting seat, and the middle parts of the two bearings are matched with the first milling tool handle and the second milling tool handle respectively.

8. A milling mechanism for a compound lathe according to any one of claims 1 to 7, characterized in that: A steering adjustment assembly is installed on one side of the first support member in the casing, and the steering adjustment assembly includes a steering adjustment motor and a steering adjustment rod. The steering adjustment rod is movably installed on one end of the steering adjustment motor, and the end of the steering adjustment rod away from the steering adjustment motor passes through the bottom of the limit seat.

9. A milling mechanism for a compound lathe according to any one of claims 1 to 7, characterized in that: Threaded holes for positioning the first limiting column and the second limiting column are provided on both sides of the limiting block.

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