Inner core body subassembly type wet clutch of punching machine tool

Abstract

The invention discloses an inner core body subassembly type punching machine tool wet clutch in the field of machine tool parts, and the inner core body subassembly type punching machine tool wet clutch comprises a gear shaft, one end of the gear shaft sequentially penetrates through an unloading sleeve and a brake disc, the extending end of the gear shaft is sleeved with a coaxial inner core body, and the inner core body comprises an outer gear ring; friction separation assemblies are arranged on braking outer transmission teeth and clutch outer transmission teeth of the outer gear ring, the outer gear ring is coaxially sleeved with an annular piston and an outer cover which correspond front and back, the outer gear ring is sleeved with an annular gland, a plurality of springs distributed at intervals in the circumferential direction are arranged between the gland and the outer cover, and a braking inner gear ring is fixedly connected to the braking disc; a clutch inner gear ring is fixedly connected to the cover body, an air cylinder body is fixed to the front end of an outer gear ring, and a flange cover is fixed to the front end of the air cylinder body. The inner core body is independently assembled, the clutch assembling efficiency is improved, the piston and the outer cover synchronously move, and it is guaranteed that air inflow of the air cylinder body is more uniform.

Description

Technical Field

[0001] This invention belongs to the field of machine tool components, and specifically relates to a wet clutch for an internal core assembly type stamping machine. Background Technology

[0002] As a crucial component of machine tools, the clutch plays a vital role in stamping machine tools. It provides power and energy for the operation of the stamping machine, controlling the movement and stopping of the slide. In existing stamping machine tools, wet clutches are used in the core transmission components. They transmit high torque and provide high flywheel energy; engagement is smooth, gentle, and with minimal impact; the friction pair is enclosed within the flywheel cavity, and the friction plates are immersed in oil during clutch and braking, forming an oil film between the plates, resulting in minimal wear; this extends the service life of the friction plates while being environmentally friendly; the clutch operates with low temperature rise, extending the service life of the friction plates; the friction material is specially customized, possessing excellent thermal stability, ensuring stable overall clutch performance; the enclosed structure results in very low noise during operation; and the sealing structure of the wet clutch prevents dust ingress, guaranteeing product quality.

[0003] The current disadvantages of wet clutches for stamping machines are: complex assembly structure, inconvenient assembly, and relatively troublesome disassembly and maintenance with low efficiency; the structure is not compact enough, resulting in poor synchronization of piston movement; and air intake from the side of the cylinder block leads to uneven force on the piston inside the cylinder block. Summary of the Invention

[0004] The purpose of this invention is to provide a wet clutch for an internal core assembly stamping machine, which can assemble the internal core separately, improve the clutch assembly efficiency, enable the piston and the outer cover to move synchronously, and ensure more uniform air intake in the cylinder.

[0005] The objective of this invention is achieved as follows: A wet clutch for a stamping machine tool with an inner core assembly includes a gear shaft rotatably connected to the body of the stamping machine tool. A load-bearing sleeve fixed to the body of the stamping machine tool is fitted around the outer circumference of the gear shaft. A bearing is provided between the inner wall of the load-bearing sleeve and the outer circumference of the gear shaft. A rotatable flywheel is mounted on the outer circumference of the load-bearing sleeve via two bearings. A coaxial brake disc is fixedly connected to the end face of the load-bearing sleeve. One end of the gear shaft passes sequentially through the load-bearing sleeve and the brake disc. The invention is characterized in that a coaxial inner core is fitted around the protruding end of the gear shaft. The inner core includes an outer gear ring fitted around the outer circumference of the gear shaft. A key is provided between the inner wall of the outer gear ring and the outer circumference of the gear shaft. Braking external drive teeth and clutch external drive teeth are respectively provided on the outer circumference of the outer gear ring. Friction elements are provided on both the braking external drive teeth and the clutch external drive teeth of the outer gear ring. The assembly includes an outer gear ring with corresponding annular pistons and outer covers coaxially mounted on it. The pistons and outer covers are connected by several circumferentially spaced connecting rods, each of which passes through the outer gear ring and is movably connected to it. An annular pressure cap is also mounted on the outer gear ring, and several circumferentially spaced springs are provided between the pressure cap and the outer cover. A cover is fixedly connected to the flywheel to enclose the inner core, and the cover is coaxial with the gear shaft. A brake inner gear ring corresponding to the friction separation assembly of the brake external transmission gear is fixedly connected to the brake disc. A clutch inner gear ring corresponding to the friction separation assembly of the clutch external transmission gear is fixedly connected to the cover. A cylinder body for accommodating the piston is fixedly fixed at the front end of the outer gear ring. The cylinder body and the cover are correspondingly arranged. A flange cover is fixed to the front end of the cylinder body and closes the front end of the cover.

[0006] When the clutch of this invention is in operation, the air source supplies compressed gas through the air inlet of the flange cover into the inlet of the cylinder body. After entering the cylinder body, the gas pushes the piston backward. The piston presses against the friction plates and partitions on the outer circumference of the clutch's outer drive gear, creating a transmission connection between the clutch's inner and outer gear rings. Since the piston is connected to the outer cover via a connecting rod, the outer cover moves backward and separates from the friction plates and partitions on the outer circumference of the brake's outer drive gear of the outer gear ring. The pressure cover remains stationary, and the outer cover compresses the spring. The main motor drives the flywheel to rotate via a V-belt. The flywheel drives the cover, which in turn drives the clutch's inner gear ring. The clutch's inner gear ring, through the friction plates and partitions, drives the outer gear ring to rotate. The gear ring drives the gear shaft via a key, which in turn drives the large gear, driving the crankshaft of the stamping machine to rotate. When the clutch releases air, the solenoid valve opens, and the compressed gas in the cylinder body is released outward in the opposite direction through the inlet hole of the cylinder body and the air inlet hole of the flange cover. The springs between the outer cover and the pressure cover release their spring force. Under the action of the spring force, the pressure cover and the piston move outward, causing the piston to disengage from the friction plates and partitions in the clutch inner gear ring. This also enables the outer cover to press against the friction plates and partitions on the outer circumference of the braking outer transmission gear of the outer gear ring. Since the braking inner gear ring is fixed to the brake disc, and the brake disc is fixed to the unloading sleeve, the outer gear ring achieves a braking effect by combining with the friction plates and partitions in the braking inner gear ring through the outer cover. Compared with existing technologies, the advantages of this invention are as follows: By assembling the outer cover, spring, connecting rod, external gear ring, piston, and friction plates and partitions on both sides as a single inner core, the efficiency of installation and assembly is improved; one end of the connecting rod is connected to the outer cover, and the other end is connected to the piston via screws, enabling the piston and outer cover to move synchronously, resulting in better synchronicity; the external gear ring, as a single component, has friction plates and partitions for the braking part installed on one side and friction plates and partitions for the clutch part installed on the other side; gas enters the cylinder body through the flange cover, resulting in more uniform air intake and smooth piston movement. This invention is a machine tool component and is applied to stamping machine tools.

[0007] As a further improvement of the present invention, the front and rear ends of the external gear ring are respectively provided with a front protrusion section and a rear protrusion section. An outer step is provided around the outer circumference of the external gear ring. The clutch external drive tooth and the brake external drive tooth are located on the front and rear sides of the outer step, respectively. The outer diameter of the clutch external drive tooth is smaller than the outer diameter of the brake external drive tooth. An annular inner groove is provided at the rear end of the external gear ring. Several circumferentially spaced weight-reducing grooves are also provided at the rear end of the external gear ring. The weight-reducing grooves are located on the front side of the inner groove. The depth of both the weight-reducing grooves and the inner groove is less than the length of the external gear ring. The inner groove of the external gear ring facilitates the installation of the outer cover. The outer circumference of the front protrusion section is used to install the piston. Friction plates and spacers for the braking and clutch components can be installed on the external gear ring.

[0008] As a further improvement of the present invention, the friction separation assembly includes a plurality of friction plates and spacers arranged alternately along the length direction of the outer gear ring. The annular friction plates and spacers of the two sets of friction separation assemblies are coaxially sleeved on the outer periphery of the clutch outer drive gear and the brake outer drive gear, respectively. The outer periphery of the friction plate is provided with external meshing teeth, and the inner periphery of the spacer is provided with internal meshing teeth. The outer diameter of the friction plate is larger than the outer diameter of the spacer, and the inner diameter of the friction plate is larger than the inner diameter of the spacer. The annular clutch inner gear ring and the brake inner gear ring are respectively sleeved on the friction plates on the outer periphery of the clutch outer drive gear and the brake outer drive gear, respectively. The external meshing teeth of the friction plate are correspondingly arranged with the internal teeth of the annular clutch inner gear ring or the brake inner gear ring, and the internal meshing teeth of the spacer are correspondingly arranged with the clutch outer drive gear or the brake outer drive gear. A gap is left between the inner periphery of the friction plate and the outer periphery of the outer gear ring, and a gap is left between the outer periphery of the spacer and the inner periphery of the clutch inner gear ring or the brake inner gear ring. The friction plate of the clutch external transmission gear can engage with the clutch internal gear ring, and the friction plate of the brake external transmission gear can engage with the brake internal gear ring.

[0009] As a further improvement of the present invention, the piston is sleeved on the outer periphery of the front protrusion section, and a sealing ring is provided between the inner periphery of the piston and the outer periphery of the front protrusion section. An annular compression section is coaxially provided at the rear end of the piston, and the piston compression section is arranged corresponding to the front friction plate of the outer periphery of the clutch external transmission gear. The outer cover includes an annular connecting part and a pushing part corresponding to the front and rear ends. The connecting part and the pushing part are connected by an annular extension part extending rearward along the axial direction. The outer diameter of the pushing part is larger than the outer diameter of the connecting part. The connecting part is coaxial with the external gear ring and is arranged in the inner groove. The pushing part corresponds to the rear end face of the external gear ring, and an annular compression protrusion is provided at the front end of the pushing part. Corresponding to the rear friction plate on the outer periphery of the brake external transmission gear, each connecting rod is fixedly connected to the piston and outer cover connecting parts at its front and rear ends, respectively. Several sliding holes, accommodating the connecting rods, are perforated along the length of the outer gear ring. These sliding holes are spaced circumferentially. Each connecting rod passes through a corresponding sliding hole and is movably connected to it. The pressure cap is fixedly fitted onto the outer periphery of the rear protruding section. Springs are positioned between the pressure cap and the connecting parts. Several positioning holes are provided at the rear end of the connecting parts. The front ends of the springs are embedded in the corresponding positioning holes and elastically abut against the inner wall of the positioning holes, while the rear ends of the springs elastically abut against the pressure cap. The piston and outer cover are connected as a whole by connecting rods. The connecting rods are movably connected to the outer gear ring. The piston is compressed by gas at the front, and the outer cover is compressed by springs at the rear, creating a dynamic balance.

[0010] As a further improvement of the present invention, the rear end of the brake internal gear ring is provided with flange one, which is fixed to the brake disc by a plurality of fasteners distributed circumferentially. The front end of the clutch internal gear ring is provided with flange two, which is fixed to the cover by a plurality of fasteners distributed circumferentially. A plurality of external sealing rings coaxial with the clutch internal gear ring are provided between flange two and the cover. The front end of the cover is integrally provided with a coaxial expansion portion, and the expansion portion is provided with a mounting groove one. The inner wall of the mounting groove one of the expansion portion is composed of a circular segment and a reduced diameter segment. The outer diameter of the reduced diameter segment decreases from the end closer to the circular segment to the end farther away from the circular segment. The front end of the clutch internal gear ring is provided with an annular mounting groove two. The mounting groove one and the mounting groove two form a cylinder groove, and the cylinder body corresponds to it. The cylinder body is installed in a cylinder groove and fixed to the front protruding section of the external gear ring by several fasteners spaced circumferentially. A coaxial annular groove is provided at the rear end of the cylinder body to accommodate the front protruding section. A second sealing ring is provided between the outer circumference of the front protruding section and the inner wall of the groove. The front end of the gear shaft fits against the rear end of the cylinder body. A receiving groove is provided on the cylinder body surrounding the outer circumference of the front protruding section. The piston is fitted into the receiving groove, and a third sealing ring is provided between the outer circumference of the piston and the inner wall of the receiving groove. The outer circumference of the cylinder body corresponds to the circumferential inner wall of the cylinder groove, and the rear end of the cylinder body corresponds to the rear end inner wall of the second mounting groove. The front outer circumference of the cylinder body has a chamfer corresponding to the inner wall of the reduced-diameter section of the first mounting groove, and the piston also corresponds to the rear end inner wall of the second mounting groove. The cylinder body is fixedly installed in the cylinder groove formed by the first and second mounting grooves. The cylinder body is limited by the inner wall of the cylinder groove, and the cylinder body is fixed to the flange cover, thus securing the flange cover.

[0011] As a further improvement of the present invention, a central hole is provided in the center of the expansion portion of the cover. The flange cover is inserted into the central hole and fits against the cylinder body. A sealing ring four is provided between the rear end of the flange cover and the front end of the cylinder body. The sealing ring four is coaxially arranged with the flange cover. The flange cover is fixed to the cylinder body by a number of circumferentially distributed fastening bolts. The sealing ring four is distributed around the periphery of each fastening bolt. The sealing ring four seals the gas entering the cylinder body to prevent gas leakage.

[0012] As a further improvement of the present invention, the front end of the flange cover is provided with an air inlet hole 1 along the axial direction. The depth of the air inlet hole 1 is less than the length of the flange cover. At least two air inlets 2 are provided radially around the outer periphery of the air inlet hole 1 on the flange cover. Each air inlet hole 2 is distributed at equal intervals along the circumference. The air inlet hole 1 and the air inlet hole 2 are connected. A plug is provided at the outward end of the air inlet hole 2. An air inlet hole 3 is provided on the flange cover behind each air inlet hole 2. The length direction of the air inlet hole 3 is parallel to the axis of the flange cover. The air inlet hole 3 is connected to the corresponding air inlet hole 2. An inlet hole is obliquely provided on the cylinder body corresponding to each air inlet hole 3. A coaxial distribution groove is provided around the rear end of the cylinder body. The front end of the inlet hole is connected to the corresponding air inlet hole 3, and the rear end of the inlet hole is connected to the distribution groove. The distribution groove is connected to the gap between the piston and the cylinder body. Compressed air enters the cylinder block through intake port one, intake ports two, and intake ports three in sequence. Then, it converges from the intake ports into the distribution groove at the rear end of the cylinder block, and finally enters the cylinder block from the distribution groove to push the piston backward. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention.

[0014] Figure 2 for Figure 1 A sectional view along line AA.

[0015] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0016] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0017] Figure 5 for Figure 3 A magnified view of a portion of the image.

[0018] Figure 6 for Figure 3 BB-direction sectional view.

[0019] Figure 7 This is a schematic diagram of the end face structure of the present invention.

[0020] Figure 8 for Figure 7 CC-direction sectional view.

[0021] Figure 9 for Figure 7 DD section view.

[0022] Figure 10 This is the front view of the inner core.

[0023] Figure 11 for Figure 10 EE-directed sectional view.

[0024] Figure 12 This is a three-dimensional structural diagram of the inner core, brake internal gear ring, and clutch internal gear ring on the gear shaft.

[0025] Figure 13 This is a three-dimensional structural diagram of the inner core.

[0026] Figure 14 This is a three-dimensional structural diagram of the external gear ring.

[0027] Figure 15 This is a three-dimensional structural diagram of the external gear ring.

[0028] Among them, 1. Gear shaft, 2. Unloading sleeve, 3. Bearing 1, 4. Bearing 2, 5. Flywheel, 6. Brake disc, 7. External gear ring, 7a. Clutch external transmission gear, 7b. Brake external transmission gear, 701. Front protrusion section, 702. Rear protrusion section, 703. External step, 704. Internal groove, 705. Weight reduction groove, 8. Key, 9. Piston, 9a. Extrusion section, 10. Outer cover, 10a. Connecting part, 10b. Pushing part, 10b1. Extrusion protrusion, 10c. Extension part, 11. Connecting rod, 12. Pressure cover, 13. Spring, 14. Cover, 14a. Expansion part, 15. Brake internal gear ring, 15a. Flange 1, 16. Clutch internal gear ring. Gear ring, 16a Flange II, 17 Cylinder body, 18 Flange cover, 19 Friction plate, 19a External meshing tooth, 20 Partition, 20a Internal meshing tooth, 21 Sealing ring I, 22 Sliding hole, 23 Positioning hole, 24 External sealing ring, 25 Mounting groove I, 25a Circular section, 25b Reduced diameter section, 26 Mounting groove II, 27 Embedded groove, 28 Sealing ring II, 29 Receiving groove, 30 Sealing ring III, 31 Chamfer, 32 Center hole, 33 Sealing ring IV, 34 Fastening bolt, 35 Air inlet hole I, 36 Air inlet hole II, 37 Air inlet hole III, 38 Inlet hole, 39 Distribution groove. Detailed Implementation

[0029] like Figure 1-15The diagram shows a wet clutch for a stamping machine tool with an internal core assembly. It includes a gear shaft 1 rotatably connected to the stamping machine tool body. A load-bearing sleeve 2, fixed to the stamping machine tool body, is fitted around the outer circumference of the gear shaft 1. A bearing 3 is provided between the inner wall of the load-bearing sleeve 2 and the outer circumference of the gear shaft 1. A rotatable flywheel 5 is mounted on the outer circumference of the load-bearing sleeve 2 via two bearings 4. A coaxial brake disc 6 is fixedly connected to the end face of the load-bearing sleeve 2. One end of the gear shaft 1 passes sequentially through the load-bearing sleeve 2 and the brake disc 6. The clutch is characterized by a coaxial internal core fitted at the protruding end of the gear shaft 1. The internal core includes an outer gear ring 7 fitted around the outer circumference of the gear shaft 1. A key 8 is provided between the inner wall of the outer gear ring 7 and the outer circumference of the gear shaft 1. Braking external transmission teeth 7b and clutch external transmission teeth 7a are respectively provided on the outer circumference of the outer gear ring 7. Friction separation components are provided on both the braking external transmission teeth 7b and the clutch external transmission teeth 7a. A coaxial bearing 3 is fitted on the outer gear ring 7. There are corresponding annular pistons 9 and outer covers 10. The pistons 9 and outer covers 10 are connected by several connecting rods 11 distributed circumferentially. Each connecting rod 11 passes through an outer gear ring 7 and is movably connected to the outer gear ring 7. An annular pressure cover 12 is also fitted on the outer gear ring 7. Several springs 13 are distributed circumferentially between the pressure cover 12 and the outer cover 10. A cover 14 covering the inner core is fixedly connected to the flywheel 5. The cover 14 is coaxial with the gear shaft 1. A brake inner gear ring 15 corresponding to the friction separation component of the brake outer transmission gear 7b is fixedly connected to the brake disc 6. A clutch inner gear ring 16 corresponding to the friction separation component of the clutch outer transmission gear 7a is fixedly connected to the cover 14. A cylinder body 17 for accommodating the piston 9 is fixed at the front end of the outer gear ring 7. The cylinder body 17 is correspondingly set with the cover 14. A flange cover 18 is fixed to the front end of the cylinder body 17 and closes the front end of the cover 14.

[0030] The outer gear ring 7 has a front protrusion section 701 and a rear protrusion section 702 at its front and rear ends, respectively. An outer step 703 surrounds the outer circumference of the outer gear ring 7. The clutch outer drive tooth 7a and the brake outer drive tooth 7b are located on the front and rear sides of the outer step 703, respectively. The outer diameter of the clutch outer drive tooth 7a is smaller than the outer diameter of the brake outer drive tooth 7b. An annular inner groove 704 is formed at the rear end of the outer gear ring 7. Several circumferentially spaced weight-reducing grooves 705 are also formed at the rear end of the outer gear ring 7. The weight-reducing grooves 705 are located in front of the inner groove 704. The depth of both the weight-reducing grooves 705 and the inner groove 704 is less than the length of the outer gear ring 7. The inner groove 704 of the outer gear ring 7 facilitates the installation of the outer cover 10. The outer circumference of the front protrusion section 701 is used to install the piston 9. Friction plates 19 and spacers 20 for the braking and clutch components can be installed on the outer gear ring 7.

[0031] The friction separation assembly includes a plurality of friction plates 19 and spacers 20 arranged alternately along the length of the outer gear ring 7. The annular friction plates 19 and spacers 20 of the two sets of friction separation assemblies are coaxially sleeved on the outer circumference of the clutch outer drive gear 7a and the brake outer drive gear 7b, respectively. The outer circumference of the friction plate 19 is provided with external meshing teeth 19a, and the inner circumference of the spacer 20 is provided with internal meshing teeth 20a. The outer diameter of the friction plate 19 is larger than the outer diameter of the spacer 20, and the inner diameter of the friction plate 19 is larger than the inner diameter of the spacer 20. The annular clutch inner gear ring 16 and the brake... The moving internal gear ring 15 is respectively fitted onto the friction plates 19 on the outer periphery of the clutch external transmission gear 7a and the brake external transmission gear 7b. The outer meshing teeth 19a of the friction plate 19 are correspondingly arranged with the inner teeth of the annular clutch internal gear ring 16 or the brake internal gear ring 15. The inner meshing teeth 20a of the partition 20 are correspondingly arranged with the clutch external transmission gear 7a or the brake external transmission gear 7b. A gap is left between the inner periphery of the friction plate 19 and the outer periphery of the outer gear ring 7, and a gap is left between the outer periphery of the partition 20 and the inner periphery of the clutch internal gear ring 16 or the brake internal gear ring 15. The friction plate 19 of the clutch external transmission gear 7a can engage with the clutch internal gear ring 16, and the friction plate 19 of the brake external transmission gear 7b can engage with the brake internal gear ring 15.

[0032] Piston 9 is fitted around the outer periphery of the front protrusion 701. A sealing ring 21 is provided between the inner periphery of piston 9 and the outer periphery of the front protrusion 701. An annular extrusion section 9a is coaxially provided at the rear end of piston 9. The extrusion section 9a of piston 9 is provided corresponding to the front friction plate 19 of the outer periphery of the clutch external transmission gear 7a. The outer cover 10 includes an annular connecting part 10a and a pushing part 10b corresponding to the front and rear ends. The connecting part 10a and the pushing part 10b are connected by an annular extension 10c extending rearward along the axial direction. The outer diameter of the pushing part 10b is larger than the outer diameter of the connecting part 10a. The connecting part 10a is coaxial with the outer gear ring 7 and is provided in the inner groove 704. The pushing part 10b corresponds to the rear end face of the outer gear ring 7. An annular extrusion protrusion 10b1 is provided at the front end of the pushing part 10b. Corresponding to the rear friction plate 19 on the outer periphery of the brake external transmission gear 7b, each connecting rod 11 is fixedly connected at its front and rear ends to the piston 9 and the connecting part 10a of the outer cover 10, respectively. Several sliding holes 22 are provided along the length of the outer gear ring 7, allowing each connecting rod 11 to pass through. These sliding holes 22 are spaced circumferentially. Each connecting rod 11 passes through each sliding hole 22 and is movably connected to the corresponding sliding hole 22. The pressure cap 12 is fixedly fitted onto the outer periphery of the rear protruding section 702. Springs 13 are positioned between the pressure cap 12 and the connecting part 10a. Several positioning holes 23 are provided at the rear end of the connecting part 10a. The front end of each spring 13 is embedded in the corresponding positioning hole 23 and elastically abuts against the inner wall of the positioning hole 23. The rear end of each spring 13 elastically abuts against the pressure cap 12. The piston 9 and the outer cover 10 are connected by the connecting rods 11 to form a whole. The connecting rods 11 are movably connected to the outer gear ring 7. The piston 9 is compressed by gas at the front, and the outer cover 10 is compressed by the springs 13 at the rear, achieving dynamic balance.

[0033] The rear end of the brake internal gear ring 15 is provided with a flange 15a, which is fixed to the brake disc 6 by a number of fasteners distributed circumferentially. The front end of the clutch internal gear ring 16 is provided with a flange 16a, which is fixed to the cover 14 by a number of fasteners distributed circumferentially. A number of external sealing rings 24 coaxial with the clutch internal gear ring 16 are provided between the flange 16a and the cover 14. The front end of the cover 14 is integrally provided with a coaxial expansion portion 14a. The expansion portion 14a has a mounting groove 25 inside. The inner wall of the mounting groove 25 of the expansion portion 14a is composed of a circular segment 25a and a reduced diameter segment 25b. The outer diameter of the reduced diameter segment 25b decreases from the end closer to the circular segment 25a to the end farther away from the circular segment 25a. The front end of the clutch internal gear ring 16 has an annular mounting groove 26 inside. The mounting groove 25 and the mounting groove 26 form a cylinder groove, and the cylinder body 17 is correspondingly mounted. Within the cylinder groove, the cylinder body 17 is fixed to the front protruding section 701 of the external gear ring 7 by several fasteners spaced circumferentially. The rear end of the cylinder body 17 is coaxially provided with an annular embedding groove 27 for the front protruding section 701 to be embedded. A sealing ring 28 is provided between the outer periphery of the front protruding section 701 and the inner wall of the embedding groove 27. The front end of the gear shaft 1 is in contact with the rear end of the cylinder body 17. A receiving groove 29 is provided on the cylinder body 17 surrounding the outer periphery of the front protruding section 701. The piston 9 is matched and installed in the receiving groove 29. A sealing ring 30 is provided between the outer periphery of the piston 9 and the inner wall of the receiving groove 29. The outer periphery of the cylinder body 17 is correspondingly provided with the circumferential inner wall of the cylinder groove. The rear end of the cylinder body 17 is correspondingly provided with the rear end inner wall of the mounting groove 26. The front end of the cylinder body 17 is provided with a chamfer 31 corresponding to the inner wall of the reduced diameter section 25b of the mounting groove 25. The piston 9 is also correspondingly provided with the rear end inner wall of the mounting groove 26. The cylinder body 17 is fixedly installed in the cylinder groove formed by the first mounting groove 25 and the second mounting groove 26. The cylinder body 17 is limited by the inner wall of the cylinder groove, and the cylinder body 17 is fixed to the flange cover 18, so that the flange cover 18 is fixed.

[0034] A central hole 32 is provided at the center of the expansion portion 14a of the cover 14. The flange cover 18 is inserted into the central hole 32 and fits against the cylinder body 17. A sealing ring 33 is provided between the rear end of the flange cover 18 and the front end of the cylinder body 17. The sealing ring 33 is coaxially arranged with the flange cover 18. The flange cover 18 is fixed to the cylinder body 17 by a number of circumferentially distributed fastening bolts 34. The sealing ring 33 is distributed around the periphery of each fastening bolt 34. The sealing ring 33 seals the gas entering the cylinder body 17 to prevent gas leakage.

[0035] The flange cover 18 has an axially oriented air inlet 35 at its front end, the depth of which is less than the length of the flange cover 18. At least two radially oriented air inlets 36 are provided on the flange cover 18 around the outer periphery of the air inlet 35, with each air inlet 36 evenly spaced circumferentially. The air inlets 35 and 36 are connected, and a plug is provided at the outward-facing end of each air inlet 36. An air inlet 37 is also provided on the flange cover 18 behind each air inlet 36. The length of intake port 37 is parallel to the axis of flange cover 18. Intake port 37 is connected to the corresponding intake port 36. Each intake port 37 on cylinder body 17 has an inclined inlet hole 38. A coaxial distribution groove 39 is formed around the rear end of cylinder body 17. The front end of the inlet hole 38 is connected to the corresponding intake port 37, and the rear end of the inlet hole 38 is connected to the distribution groove 39. The distribution groove 39 is connected to the gap between piston 9 and cylinder body 17. Compressed air is sequentially introduced into each inlet hole 38 of cylinder body 17 through intake port 1 35, each intake port 2 36, and each intake port 37. Then, it is collected from each inlet hole 38 and enters the distribution groove 39 at the rear end of cylinder body 17. Finally, it enters the cylinder body 17 from the distribution groove 39 and pushes piston 9 backward.

[0036] When the clutch of the present invention is in operation, the air source supplies compressed gas through the air inlet of the flange cover 18 into the inlet hole 38 of the intake cylinder 17. After the gas enters the cylinder 17, it pushes the piston 9 to move backward. The piston 9 presses against the friction plates 19 and partition plates 20 on the outer periphery of the clutch external transmission teeth 7a of the outer gear ring 7, and they are tightly engaged. Figure 11 This causes the clutch internal gear ring 16 and the external gear ring 7 to form a transmission connection. Since the piston 9 is connected to the outer cover 10 through the connecting rod 11, the outer cover 10 moves backward and separates from the friction plates 19 and partition plates 20 on the outer periphery of the braking external transmission gear 7b of the external gear ring 7. The pressure cover 12 remains stationary, and the outer cover 10 compresses the spring 13. The main motor drives the flywheel 5 to rotate through the V-belt. The flywheel 5 drives the cover 14, and the cover 14 drives the clutch internal gear ring 16. The clutch internal gear ring 16 drives the external gear ring 7 to rotate through the friction plates 19 and partition plates 20. The external gear ring 7 drives the gear shaft 1 through the key 8. The gear shaft 1 drives the large gear, driving the crankshaft of the stamping machine to rotate. When the clutch releases air, the solenoid valve opens. When the cylinder is opened, the compressed gas in the cylinder body 17 is released outward in the opposite direction through the inlet hole 38 of the cylinder body 17 and the air inlet hole of the flange cover 18. The springs 13 between the outer cover 10 and the pressure cover 12 release their spring force. Under the action of the spring force, the pressure cover 12 and the piston 9 move outward, so that the piston 9 disengages from the friction plates 19 and partitions 20 in the clutch inner gear ring 16. The outer cover 10 presses the friction plates 19 and partitions 20 on the outer periphery of the brake outer transmission gear 7b of the outer gear ring 7. Since the brake inner gear ring 15 is fixed to the brake disc 6 and the brake disc 6 is fixed to the unloading sleeve 2, the outer gear ring 7 achieves the braking effect by combining with the friction plates 19 and partitions 20 in the brake inner gear ring 15 through the outer cover 10.

[0037] The advantages of this invention are as follows: By assembling the outer cover 10, spring 13, connecting rod 11, external gear ring 7, piston 9, and friction plates 19 and partitions 20 on both sides as a single inner core, the efficiency of installation and assembly is improved; one end of the connecting rod 11 is connected to the outer cover 10, and the other end is connected to the piston 9 by screws, so that the piston 9 and the outer cover move synchronously, resulting in better synchronization; the external gear ring 7 is an integral part, with the friction plates 19 and partitions 20 of the braking part installed on one side and the friction plates 19 and partitions 20 of the clutch part installed on the other side; gas enters into the cylinder body 17 through the flange cover 18, resulting in more uniform air intake and smooth movement of the piston 9. This invention is a machine tool component and is applied to a stamping machine.

[0038] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A wet clutch for an internal core-mounted stamping machine tool, comprising a gear shaft rotatably connected to the stamping machine tool body, an unloading sleeve fixed to the stamping machine tool body and fitted around the outer circumference of the gear shaft, a bearing 1 between the inner wall of the unloading sleeve and the outer circumference of the gear shaft, a rotatable flywheel mounted on the outer circumference of the unloading sleeve via two bearings 2, a coaxial brake disc fixedly connected to the end face of the unloading sleeve, and one end of the gear shaft passing sequentially through the unloading sleeve and the brake disc, characterized in that... The protruding end of the gear shaft is fitted with a coaxial inner core. The inner core includes an outer gear ring fitted around the outer circumference of the gear shaft. A key is provided between the inner wall of the outer gear ring and the outer circumference of the gear shaft. The outer circumference of the outer gear ring is respectively provided with braking external transmission teeth and clutch external transmission teeth. Friction separation components are provided on both the braking external transmission teeth and the clutch external transmission teeth of the outer gear ring. Corresponding annular pistons and outer covers are coaxially fitted on the outer gear ring. The pistons and outer covers are connected by several connecting rods distributed circumferentially. Each connecting rod passes through the outer gear ring and is movably connected to it. The outer gear ring is also fitted with... The device has an annular pressure cap, and several springs are arranged circumferentially between the pressure cap and the outer cap. A cover is fixedly connected to the flywheel to cover the inner core. The cover is coaxial with the gear shaft. A brake internal gear ring corresponding to the friction separation assembly of the brake external transmission gear is fixedly connected to the brake disc. A clutch internal gear ring corresponding to the friction separation assembly of the clutch external transmission gear is fixedly connected to the cover. A cylinder body for accommodating the piston is fixed to the front end of the outer gear ring. The cylinder body and the cover are correspondingly arranged. A flange cover is fixed to the front end of the cylinder body and closes the front end of the cover.

2. The wet clutch for an internal core assembly type stamping machine tool according to claim 1, characterized in that, The outer gear ring has a front protrusion section and a rear protrusion section at its front and rear ends, respectively. An outer step is provided around the outer periphery of the outer gear ring. The clutch outer drive tooth and the brake outer drive tooth are located on the front and rear sides of the outer step, respectively. The outer diameter of the clutch outer drive tooth is smaller than the outer diameter of the brake outer drive tooth. An annular inner groove is provided at the rear end of the outer gear ring. Several weight-reducing grooves are also provided at the rear end of the outer gear ring, which are distributed circumferentially. The weight-reducing grooves are located on the front side of the inner groove. The depth of the weight-reducing grooves and the inner groove is less than the length of the outer gear ring.

3. The wet clutch of an internal core assembly type stamping machine tool according to claim 2, characterized in that, The friction separation assembly includes several friction plates and spacers arranged alternately along the length of the outer gear ring. The annular friction plates and spacers of the two sets of friction separation assemblies are coaxially sleeved on the outer circumference of the clutch outer drive gear and the brake outer drive gear, respectively. The outer circumference of the friction plate is provided with external meshing teeth, and the inner circumference of the spacer is provided with internal meshing teeth. The outer diameter of the friction plate is larger than the outer diameter of the spacer, and the inner diameter of the friction plate is larger than the inner diameter of the spacer. The annular clutch inner gear ring and the brake inner gear ring are respectively sleeved on the friction plates on the outer circumference of the clutch outer drive gear and the brake outer drive gear, respectively. The external meshing teeth of the friction plate are correspondingly arranged with the internal teeth of the annular clutch inner gear ring or the brake inner gear ring, and the internal meshing teeth of the spacer are correspondingly arranged with the clutch outer drive gear or the brake outer drive gear. There is a gap between the inner circumference of the friction plate and the outer circumference of the outer gear ring, and there is a gap between the outer circumference of the spacer and the inner circumference of the clutch inner gear ring or the brake inner gear ring.

4. A wet clutch for an internal core assembly type stamping machine tool according to claim 3, characterized in that, The piston is sleeved on the outer circumference of the front protrusion section. A sealing ring is provided between the inner circumference of the piston and the outer circumference of the front protrusion section. The rear end of the piston is coaxially provided with an annular extrusion section, which is arranged corresponding to the front friction plate of the outer circumference of the clutch external transmission gear. The outer cover includes an annular connecting part and a pushing part corresponding to the front and rear ends. The connecting part and the pushing part are connected by an annular extension part extending rearward along the axial direction. The outer diameter of the pushing part is larger than the outer diameter of the connecting part. The connecting part is coaxial with the outer gear ring and is arranged in the inner groove. The pushing part corresponds to the rear end face of the outer gear ring. The front end of the pushing part is provided with an annular extrusion protrusion, which is connected to the brake external transmission gear. The rear end friction plate of the outer circumference of the tooth is correspondingly arranged. The front and rear ends of each connecting rod are fixedly connected to the piston and the outer cover connecting part, respectively. Several sliding holes are opened through the outer tooth ring along the length direction, which can accommodate the connecting rods. The sliding holes are distributed circumferentially. Each connecting rod passes through each sliding hole and is movably connected to the corresponding sliding hole. The pressure cover is fixedly sleeved on the outer circumference of the rear protruding section. Each spring is arranged between the pressure cover and the connecting part. Several positioning holes are opened at the rear end of the connecting part. The front end of the spring is embedded in the corresponding positioning hole and elastically abuts against the inner wall of the positioning hole. The rear end of the spring elastically abuts against the pressure cover.

5. A wet clutch for an internal core assembly type stamping machine tool according to claim 4, characterized in that, The rear end of the brake internal gear ring is provided with flange one, which is fixed to the brake disc by a number of fasteners distributed circumferentially. The front end of the clutch internal gear ring is provided with flange two, which is fixed to the cover by a number of fasteners distributed circumferentially. A number of external sealing rings coaxial with the clutch internal gear ring are provided between flange two and the cover. The front end of the cover is integrally provided with a coaxial expansion portion, and the expansion portion has a mounting groove one inside. The inner wall of the mounting groove one of the expansion portion is composed of a circular segment and a reduced diameter segment. The outer diameter of the reduced diameter segment decreases from the end closer to the circular segment to the end farther away from the circular segment. The front end of the clutch internal gear ring has an annular mounting groove two. The mounting groove one and the mounting groove two form a cylinder groove, and the cylinder body is correspondingly installed in the cylinder groove. Inside, the cylinder body is fixed to the front protruding section of the external gear ring by several fasteners distributed circumferentially. The rear end of the cylinder body is coaxially provided with an annular embedding groove for the front protruding section to be embedded. A second sealing ring is provided between the outer periphery of the front protruding section and the inner wall of the embedding groove. The front end of the gear shaft fits against the rear end of the cylinder body. A receiving groove is provided on the cylinder body surrounding the outer periphery of the front protruding section. The piston is matched and installed in the receiving groove. A third sealing ring is provided between the outer periphery of the piston and the inner wall of the receiving groove. The outer periphery of the cylinder body is correspondingly set with the circumferential inner wall of the cylinder groove. The rear end of the cylinder body is correspondingly set with the rear end inner wall of the second mounting groove. The front end of the cylinder body has a chamfer corresponding to the inner wall of the reduced diameter section of the first mounting groove. The piston is also correspondingly set with the rear end inner wall of the second mounting groove.

6. A wet clutch for an internal core assembly type stamping machine tool according to claim 5, characterized in that, The expansion section of the cover has a central hole. The flange cover is inserted into the central hole and fits against the cylinder body. A sealing ring four is provided between the rear end of the flange cover and the front end of the cylinder body. The sealing ring four is coaxially arranged with the flange cover. The flange cover is fixed to the cylinder body by several circumferentially distributed fastening bolts. The sealing ring four is distributed around the periphery of each fastening bolt.

7. A wet clutch for an internal core assembly type stamping machine tool according to claim 6, characterized in that, The flange cover has an axially oriented air inlet hole 1 at its front end, the depth of which is less than the length of the flange cover. At least two radially oriented air inlets 2 are provided on the flange cover around the outer periphery of the air inlet hole 1, and the air inlets 2 are evenly spaced circumferentially. The air inlets 1 and 2 are connected. A plug is provided at the outward end of each air inlet 2. An air inlet 3 is provided on the flange cover behind each air inlet 2, the length of which is parallel to the axis of the flange cover. The air inlet 3 is connected to the corresponding air inlet 2. An inlet hole is obliquely provided on the cylinder body corresponding to each air inlet 3. A coaxial distribution groove is provided around the rear end of the cylinder body. The front end of the inlet hole is connected to the corresponding air inlet 3, and the rear end is connected to the distribution groove. The distribution groove is connected to the gap between the piston and the cylinder body.

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