Automatic angle unit for heavy horizontal lathe tool rest

Abstract

This invention discloses an automatic tilting unit for a heavy-duty horizontal lathe tool post, belonging to the field of machine tool technology. A right-angle shaft box is embedded at the front end of the tool plate. A motor is connected to the right-angle shaft box via a transmission rod. The output shaft of the right-angle shaft box is a transmission shaft. Below the right-angle shaft box is a hydraulic cylinder box embedded in the tool plate. The transmission shaft is the cylinder rod of the hydraulic cylinder box, capable of both rotation and extension. A notch is formed in the hydraulic cylinder box at the front end of the tool plate, and a tilting body is placed within the notch. An upper gear plate, fitted onto the transmission shaft, is fixed to the top surface of the notch. A lower gear plate, meshing with the upper gear plate, is fixed to the top of the tilting body. A transmission shaft at the top of the tilting body can insert a pin that engages with a location not on its axis. The bottom of the tilting body is a certain distance from the bottom surface of the notch in the tool plate. A piston, coaxial with the tilting body, is located at the bottom of the tool plate. The piston can move up and down within the space between itself and the bottom surface of the notch. A cutting tool perpendicular to its axis is provided on the side wall of the tilting body.

Description

Technical Field

[0001] This invention relates to an automatic tilting unit for a heavy-duty horizontal lathe tool post, belonging to the field of machine tool technology. Background Technology

[0002] Currently, the cutting tools of existing heavy-duty horizontal lathes are oscillating by rotating the entire tool post. Since the tool post includes the tool post body, tool plate and cutting tool, it occupies a lot of space. After adjusting the machining angle, interference with the rotation range of the part often occurs, which makes it impossible to complete the machining of many large shaft-type complex parts in one go or even impossible to machine. With the development of the machinery industry, the machining of large shaft-type complex parts has become a problem that needs to be solved in the industry. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides an automatic tilting unit for a heavy-duty horizontal lathe tool post. This mechanism enables the tool post and tool plate to remain stationary while the tool tilts and adjusts its angle, significantly reducing the space occupied by the tilting unit and avoiding interference from the tool post during machining.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: an automatic tilting unit for a heavy-duty horizontal lathe tool post, comprising a motor, coupling, transmission rod, right-angle shaft box, transmission shaft, cylinder box, tool plate, upper gear plate, lower gear plate, pin, tilting body, cone, piston body, and flange plug. The motor is fixed to the rear end of the tool plate top via a reducer. A right-angle shaft box is embedded in the front end of the tool plate. The reducer shaft is connected to the transmission rod via a coupling. The end of the transmission rod is connected to the right-angle shaft box. The output shaft of the right-angle shaft box is the transmission shaft. A cylinder box is embedded in the tool plate below the right-angle shaft box. The transmission shaft is the cylinder rod of the cylinder box, which can rotate and extend. A notch is opened in the cylinder box at the front end of the tool plate. A tilting body is installed in the notch. An upper gear plate fixedly connected to the notch is embedded in the top surface of the notch. The transmission shaft is located on the upper gear plate. Inside the shaft hole, a lower gear plate that meshes with the upper gear plate is fixedly connected to the top of the swing angle body. A pin is provided at the top of the swing angle body inside the shaft hole of the lower gear plate. A pin hole is opened at the bottom of the drive shaft to insert the pin. The pin hole is located outside the axis of the drive shaft. A cutter is provided on the side wall of the swing angle body perpendicular to its axis. There is a certain distance between the bottom of the swing angle body and the bottom surface of the notch groove of the cutter plate. This distance is greater than the tooth groove depth of the upper and lower gear plates. A piston body is embedded in the bottom of the cutter plate. The piston rod of the piston body extends from the bottom surface of the notch groove. A flange plug is provided at the bottom of the piston body to seal it on the cutter plate. A pressure oil hole is opened on the side wall of the cutter plate to drive the piston body to extend and retract. The piston rod end of the piston body is a tapered sleeve structure. A cone that can be inserted into the tapered sleeve is provided at the bottom of the swing angle body. A top spring is provided between the top of the cone and the inner wall of the swing angle body.

[0005] The beneficial effects of this invention are as follows: This invention is applicable to shaft-type, disc-type, and other rotating parts, and is also suitable for machining complex parts such as turbine rotors, large motors, generator shafts, and rotors. It allows the tool to swing while the tool holder and tool plate remain stationary, enabling adjustment of the tool's machining angle. The swing angle unit can rotate within ±90°. After installing the tool, complex parts can be machined by rotating it to the corresponding angle, thus avoiding the problem of conventional tool holders being unable to rotate and thus unable to machine certain parts. It also reduces the space occupied, preventing the tool holder from occupying too much space and interfering with the part's rotation range. The indexing accuracy can reach 10″, and the operation simplifies the machining process, saves machining costs, and improves turning efficiency. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0007] Figure 1 This is a schematic diagram of the structure of the present invention.

[0008] Figure 2 This is a schematic diagram illustrating the working principle of the present invention.

[0009] Numbering on the map:

[0010] 1. Motor, 2. Coupling, 3. Drive rod, 4. Flange sleeve, 5. Adjusting shim, 6. Flange, 7. First sealing ring, 8. End cap, 9. Longitudinal bevel gear, 10. Drive shaft, 11. Sliding sleeve, 12. Transverse bevel gear, 13. Sealing cap, 14. Housing, 15. Sleeve, 16. Locating pin, 17. Disc, 18. Spring, 19. Knife plate, 20. Transition body, 21. Second sealing ring, 22. Locating sleeve, 23. Upper gear plate, 24. Lower gear plate, 25. Pin, 26. Swinging angle body, 27. Cone, 28. Piston body, 29. Flange plug. Detailed Implementation

[0011] like Figure 1-2 As shown, an automatic tilting unit for a heavy-duty horizontal lathe tool post includes a motor 1, a coupling 2, a transmission rod 3, a right-angle shaft box, a transmission shaft 10, a cylinder box, a tool plate 19, an upper gear plate 23, a lower gear plate 24, a pin 25, a tilting body 26, a cone 27, a piston body 28, and a flange plug 29.

[0012] Motor 1 is fixed to the top rear end of blade plate 19 via a reducer. A right-angle shaft box is embedded in the front end of blade plate 19. The reducer shaft is connected to transmission rod 3 via coupling 2. The end of transmission rod 3 is connected to the right-angle shaft box. The right-angle shaft box includes flange sleeve 4, adjusting pad 5, flange 6, first sealing ring 7, end cover 8, longitudinal bevel gear 9, transmission shaft 10, sliding sleeve 11, transverse bevel gear 12, sealing cover 13, and housing 14. Housing 14 is fitted onto blade plate 19. A shaft hole is opened at the top of housing 14, and a transverse shaft hole communicating with the shaft hole is opened at the rear end of housing 14. A flange sleeve 4 fitted onto transmission rod 3 is provided in the transverse shaft hole. A transverse shaft hole is provided at the end of transmission rod 3 inside housing 14. The bevel gear 12 and the drive shaft 10 are located in the longitudinal shaft hole of the housing 14. The top of the shaft hole is provided with a flange 6 that seals the housing 14. A first sealing ring 7 is provided between the flange 6 and the housing 14. The top of the drive shaft 10 is fitted with an end cap 8 that is fixed to the top of the shaft hole. The end cap 8 is provided with a sliding sleeve 11 that is fitted on the drive shaft 10. The drive rod 3 is fitted with a longitudinal bevel gear 9 that meshes with the transverse bevel gear 12. The drive shaft 10 can move up and down in the transverse bevel gear 12 and rotate synchronously with each other through a key block. The outer side of the longitudinal bevel gear 9 is provided with a bearing that is fixed in the housing 14. Below the longitudinal bevel gear 9 is a sealing cap 13 that is fitted on the drive shaft 10 to seal the shaft hole.

[0013] The output shaft of the right-angle shaft box is the drive shaft 10. A cylinder box embedded in the cutter plate 19 is located below the right-angle shaft box. The drive shaft 10 is the cylinder rod of the cylinder box, capable of both rotation and extension. The right-angle shaft box includes a flange sleeve 4, an adjusting pad 5, a flange 6, a first sealing ring 7, an end cap 8, a longitudinal bevel gear 9, a drive shaft 10, a sliding sleeve 11, a transverse bevel gear 12, a sealing cap 13, and a housing 14. The housing 14 is fitted onto the cutter plate 19. A shaft hole is opened at the top of the housing 14, and a transverse shaft hole communicating with the shaft hole is opened at the rear end of the housing 14. A flange sleeve 4 fitted onto the drive rod 3 is located in the transverse shaft hole. A transverse bevel gear 12 is located at the end of the drive rod 3 inside the housing 14. An adjusting pad 4 is provided between the flange sleeve 4 and the housing 14. The transmission shaft 10 is located inside the longitudinal shaft hole of the housing 14. A flange 6 sealing the housing 14 is provided at the top of the shaft hole. A first sealing ring 7 is provided between the flange 6 and the housing 14. An end cap 8 fixed to the top of the shaft hole is fitted on the top of the transmission shaft 10. A sliding sleeve 11 fitted on the transmission shaft 10 is provided inside the end cap 8. A longitudinal bevel gear 9 meshing with the transverse bevel gear 12 is fitted on the transmission shaft 10. The transmission shaft 10 can move up and down within the transverse bevel gear 12, and they rotate synchronously through a key block. A bearing fixed inside the housing 14 is provided on the outside of the longitudinal bevel gear 9. A sealing cap fitted on the transmission shaft 10 to seal the shaft hole is provided below the longitudinal bevel gear 9. 13; The cylinder housing includes a sleeve 15, a locating pin 16, a disc 17, a spring 18, a transition body 20, a second sealing ring 21, and a locating sleeve 22. The transition body 20 is located on the bottom surface of the housing 14, and the drive shaft 10 passes through the transition body 20. A locating sleeve 22 is provided at the bottom of the transition body 20 and fitted onto the drive shaft 10. A second sealing ring 21 is provided on the inner wall of the transition body 20 and fitted onto the drive shaft 10. A disc 17 is provided at the end of the transition body 20 and fitted onto the drive shaft 10. The disc 17 seals the transition body 20 to the housing 14. The diameter of the drive shaft 10 below the disc 17 is larger than its inner diameter, so that the drive shaft 10 can only slide downwards. A spring 18 is provided above the disc 17 and fitted onto the drive shaft 10. Above the 8, there is a sleeve 15 that is fitted onto the drive shaft 10. The sleeve 15 is limited to the side wall of the drive shaft 10 by a snap ring. A positioning pin 16 is fitted between the sleeve 15 and the disc 17. The sleeve 15 and the spring 18 are located in the shaft hole of the housing 14. The bottom end of the disc 17 is provided with a sleeve. A cavity is provided between the sleeve and the inner wall of the cylinder box. The cylinder box forms a piston mechanism through the disc 17, the cavity, the drive shaft 10 and the second sealing ring 21. The side wall of the cylinder box is provided with a pressure oil supply pipe that communicates with the cavity below the disc 17. The pressure oil supply pipe communicates with the pressure oil supply hole opened on the blade plate 19. If pressure oil is supplied, the sleeve 15 compresses the spring 18, driving the drive shaft 10 to move down and releasing the pressure oil. Under the action of the spring 18, the drive shaft 10 returns to its original position.

[0014] A notch is provided in the cylinder housing at the front end of the blade plate 19. A swing angle body 26 is provided in the notch. An upper gear plate 23 is embedded in the top surface of the notch and is fixedly connected to it. The drive shaft 10 is located in the shaft hole of the upper gear plate 23. A lower gear plate 24 that meshes with the upper gear plate 23 is fixedly connected to the top of the swing angle body 26. A pin 25 is provided at the top of the swing angle body 26 in the shaft hole of the lower gear plate 24. A pin hole for inserting the pin 25 is provided at the bottom end of the drive shaft 10. The pin hole is located outside the axis of the drive shaft 10. A cutter perpendicular to its axis is provided on the side wall of the swing angle body 26. The bottom end of the swing angle body 26 is connected to the shaft hole of the upper gear plate 23. The notch groove bottom of the blade 19 has a certain distance, which is greater than the tooth groove depth of the upper toothed disc 23 and the lower toothed disc 24. A piston body 28 is embedded in the bottom of the blade 19. The piston rod of the piston body 28 extends from the bottom of the notch groove. The bottom of the piston body 28 is provided with a flange plug 29 that is fixed on the blade 19 to seal it. The side wall of the blade 19 is provided with a pressure oil hole that drives the piston body 28 to extend and retract. The piston rod end of the piston body 28 is a tapered sleeve structure. The bottom end of the swing body 26 is provided with a cone 27 that can be inserted into the tapered sleeve. A top spring is provided between the top of the cone 27 and the inner wall of the swing body 26.

[0015] Installation steps:

[0016] Install the transverse bevel gear 12 and the sliding sleeve 11 into the housing in sequence. Both the transverse bevel gear 12 and the sliding sleeve 11 are equipped with bearings. Then, install the longitudinal bevel gear 9 from the side to ensure that there is no gap when rotating with the transverse bevel gear 12. Adjust it using the adjusting shim 5 and tighten it with the flange sleeve 4.

[0017] Insert the positioning sleeve 22 and the upper gear plate 23 into the blade plate 19, and insert the second sealing ring 21 into the transition body 20. Install the transition body 20 on the blade plate 19, insert the drive shaft 10, and insert the sleeve 15, positioning pin 16, disc 17, spring 18 and pressure cover 13. Insert the assembled housing 14 into the drive shaft 10 and secure the housing 14 tightly.

[0018] Lock the coupling 2 onto the transmission rod 3, insert it into the blade plate 19 and connect it to the transverse bevel gear 9. After the transmission rod 3 rotates flexibly in all places, install the first sealing ring 7 and secure the flange 6 together.

[0019] Install motor 1 and reducer.

[0020] Install the lower gear 24, pin 25, swing angle body 26, cone 27 and top spring onto the swing angle body 26.

[0021] Install the piston body 28 and flange plug 29 into the lower end of the blade plate 19.

[0022] Working principle:

[0023] like Figure 1As shown, hydraulic oil flows through the pressure oil hole 3 to push the piston body 28 upward. The cone sleeve pushes the cone body 27, which in turn drives the swing body 26 upward, so that the upper gear plate 23 and the lower gear plate 24 mesh and tighten, thus clamping the tool. At this time, the swing body 26 can be used to install the tool for cutting.

[0024] When the required rotation angle is needed, hydraulic oil from pressure oil hole 1 pushes the drive shaft 10 to drive the sleeve 15 to move downward. When the spring 18 is compressed to the position, the pressure oil hole 3 discharges oil. The drive shaft 10 pushes the swing body 26 to move downward by 4.5 mm, that is, the upper gear 23 and the lower gear 24 are disengaged. At the same time, the pin hole of the drive shaft 10 is fitted onto the pin 25 of the swing body 26.

[0025] At this time, motor 1 drives the bevel gear to rotate, which in turn drives the transmission shaft 10. Since the transmission shaft 10 and pin 25 are not coaxial, the swing body 26 rotates together with the transmission shaft 10 under the drive of pin 25 to perform ±90° indexing. After the indexing is completed, oil comes into the pressure oil hole 3 to lock the swing body, and then the workpiece is processed. The indexing drive is driven by motor 1, and the indexing accuracy is determined by the end gear plate, so the indexing accuracy can reach 10″.

Claims

1. An automatic tilting unit for a heavy-duty horizontal lathe tool post, characterized in that: The components include a motor (1), a coupling (2), a transmission rod (3), a right-angle shaft box, a transmission shaft (10), a cylinder box, a cutter plate (19), an upper gear plate (23), a lower gear plate (24), a pin (25), a swing angle body (26), a cone (27), a piston body (28), and a flange plug (29). The motor (1) is fixed to the rear end of the top of the cutter plate (19) via a reducer. A right-angle shaft box is embedded at the front end of the cutter plate (19). The shaft end of the reducer is connected to the transmission rod (3) via a coupling (2). The transmission rod (3) The end of the shaft is connected to the right-angle shaft box, and the output shaft of the right-angle shaft box is the drive shaft (10). The right-angle shaft box is provided with a cylinder box embedded in the cutter plate (19) below. The drive shaft (10) is the cylinder rod of the cylinder box, which can rotate and extend. A notch is provided in the cylinder box at the front end of the cutter plate (19). A swing angle body (26) is provided in the notch. An upper gear plate (23) is fixedly connected to the notch. The drive shaft (10) is located in the shaft hole of the upper gear plate (23). A shaft is fixedly connected to the top of the swing angle body (26). The lower gear (24) meshes with the upper gear (23). A pin (25) is provided at the top of the swing body (26) inside the shaft hole of the lower gear (24). A pin hole for inserting the pin (25) is provided at the bottom of the transmission shaft (10). The pin hole is located outside the axis of the transmission shaft (10). A cutter perpendicular to its axis is provided on the side wall of the swing body (26). There is a certain distance between the bottom of the swing body (26) and the bottom surface of the notch groove of the cutter plate (19). This distance is greater than the tooth groove depth of the upper gear (23) and the lower gear (24). A piston body (28) is embedded in the bottom of the blade plate (19). The piston rod of the piston body (28) extends from the bottom surface of the notch groove. The bottom of the piston body (28) is provided with a flange plug (29) that is fixed on the blade plate (19) to seal it. The side wall of the blade plate (19) is provided with a pressure oil hole that drives the piston body (28) to extend and retract. The piston rod end of the piston body (28) is a tapered sleeve structure. The bottom end of the swing body (26) is provided with a cone (27) that can be inserted into the tapered sleeve. A top spring is provided between the top of the cone (27) and the inner wall of the swing body (26).

2. The automatic tilting unit for a heavy-duty horizontal lathe tool post according to claim 1, characterized in that: The right-angle axle box includes a flange sleeve (4), an adjusting shim (5), a flange (6), a first sealing ring (7), an end cap (8), a longitudinal bevel gear (9), a drive shaft (10), a sliding sleeve (11), a transverse bevel gear (12), a sealing cap (13), and a housing (14). The housing (14) is fitted onto a blade plate (19). A shaft hole is provided at the top of the housing (14), and a transverse shaft hole communicating with the shaft hole is provided at the rear end of the housing (14). A flange sleeve (4) fitted onto a drive rod (3) is provided in the transverse shaft hole. A longitudinal bevel gear (9) is provided at the end of the drive rod (3) inside the housing (14). An adjusting shim (5) is provided between the flange sleeve (4) and the housing (14) to adjust the distance between the flange sleeve (4) and the longitudinal bevel gear (9). The drive shaft (10) is located in the housing. The body (14) has a longitudinal shaft hole, and a flange (6) for sealing the housing (14) is provided at the top of the shaft hole. A first sealing ring (7) is provided between the flange (6) and the housing (14). The top of the drive shaft (10) is fitted with an end cap (8) fixed at the top of the shaft hole. A sliding sleeve (11) fitted on the drive shaft (10) is provided inside the end cap (8). A longitudinal bevel gear (9) meshing with the transverse bevel gear (12) is fitted on the drive rod (3). The drive shaft (10) can move up and down inside the transverse bevel gear (12) and rotate synchronously with each other through a key block. A bearing fixed inside the housing (14) is provided on the outside of the longitudinal bevel gear (9). A sealing cap (13) fitted on the drive shaft (10) to seal the shaft hole is provided below the longitudinal bevel gear (9). The housing includes a sleeve (15), a positioning pin (16), a disc (17), a spring (18), a transition body (20), a second sealing ring (21), and a positioning sleeve (22). The transition body (20) is located on the bottom surface of the housing (14), and the drive shaft (10) passes through the transition body (20). A positioning sleeve (22) is provided at the bottom of the transition body (20) and fitted onto the drive shaft (10). A second sealing ring (21) is provided on the inner wall of the transition body (20) and fitted onto the drive shaft (10). A disc (17) is provided at the end of the transition body (20) and fitted onto the drive shaft (10). The disc (17) seals the transition body (20) and the housing (14). The diameter of the drive shaft (10) below the disc (17) is larger than its inner diameter, so that the drive shaft (10) can only move towards the housing (14). Sliding down, a spring (18) is provided above the disk (17) and sleeved on the drive shaft (10). A sleeve (15) is provided above the spring (18) and sleeved on the drive shaft (10). The sleeve (15) is limited to the side wall of the drive shaft (10) by a snap ring. A positioning pin (16) is sleeved between the sleeve (15) and the disk (17). The sleeve (15) and the spring (18) are located in the shaft hole of the housing (14). A sleeve is provided at the bottom of the disk (17). A cavity is provided between the sleeve and the inner wall of the cylinder box. The cylinder box forms a piston mechanism through the disk (17), the cavity, the drive shaft (10), and the second sealing ring (21). A pressure oil pipe is provided on the side wall of the cylinder box and communicates with the cavity below the disk (17). The pressure oil pipe communicates with the pressure oil hole opened on the blade plate (19).

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