High rigidity tool holder for a combined machining lathe

Abstract

The application relates to the technical field of lathes, in particular to a high-rigidity tool holder of a composite machining lathe, which comprises that the surface of a tool tower is provided with a T-shaped groove, the two sides of the T-shaped groove are provided with telescopic grooves, and the inside of the telescopic grooves is provided with a second positioning plate; a power head pedestal is inserted into the inside of the T-shaped groove, and the two sides of the power head pedestal are provided with first positioning plates; a servo motor is arranged on one side of the power head pedestal, and one end of the servo motor is provided with a motor output shaft; the power head is arranged in a switchable state, when the horizontal position of the same type of cutter needs to be switched into the vertical position, the motor output shaft drives the power head rotating shaft to rotate, when the power head is rotated by 90 degrees to switch into the vertical position, the locking block enters the inside of the second locking groove, so that the power head is fixed in the vertical position, the horizontal and vertical positions of the same type of cutter are switched, two groups of the same type of cutters do not need to be installed on the tool tower, the utilization rate of the tool tower is improved, the switching is short, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lathe, in particular to a high-rigidity tool holder of a compound machining lathe. BACKGROUND

[0002] The high-rigidity tool holder of the compound machining lathe is one of the core functional components of the numerical control lathe, mainly used for installing and fixing various cutting tools, and realizing accurate positioning and rapid tool changing during machining. As the key intermediate device connecting the main shaft of the machine tool and the tool, the structural rigidity and dynamic performance of the tool holder directly affect the machining accuracy, surface quality and production efficiency.

[0003] The existing tool holder of the compound machining lathe mainly adopts a turret type, and the tool is installed on each station of the tool turret. The automatic switching of the tool is realized by driving the indexing mechanism with a servo motor. However, the horizontal and vertical switching of the same type of tool requires installing two groups of the same type of tool in a horizontal and vertical manner on the tool turret, which reduces the utilization rate of the tool turret. In addition, the stroke of the rotating tool turret is large during switching, resulting in low machining efficiency. SUMMARY

[0004] The purpose of the present application is to provide a high-rigidity tool holder of a compound machining lathe to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A high-rigidity tool holder of a compound machining lathe, comprising:

[0007] A tool turret, a T-shaped slot is formed on the surface of the tool turret, two expansion slots are formed on the two sides of the T-shaped slot, and a second positioning plate is arranged in the expansion slot.

[0008] A power head pedestal is inserted into the inside of the T-shaped slot, first positioning plates are arranged on the two sides of the power head pedestal, a power head turnover slot is formed on the surface of the power head pedestal, a power head is arranged in the power head turnover slot, power head shafts are connected to the two sides of the power head, and a tool chuck is arranged at one end of the power head.

[0009] A servo motor is arranged on one side of the power head pedestal, an output shaft of the servo motor is arranged at one end of the servo motor, and the output shaft of the servo motor is connected to the power head shaft on one side of the power head.

[0010] Preferably, a bearing seat is fixedly installed on the surface of the tool turret, the bearing seat is arranged on the two sides of the T-shaped slot, and a locking screw is rotatably connected in the bearing seat.

[0011] Preferably, a plurality of positioning blocks are fixedly arranged on the surface of the second positioning plate, two groups of telescopic rods are fixedly connected to the side of the second positioning plate away from the positioning blocks, a pressing plate is fixedly connected to the outer side of the telescopic rods after extension, a threaded hole is formed in the surface of the pressing plate, and the pressing plate is screwed to the surface of the locking screw through the threaded hole.

[0012] Preferably, a plurality of positioning grooves are formed in the surface of the first positioning plate, the positioning grooves are arranged in correspondence with the positioning blocks, and the positioning grooves and the positioning blocks are matched to fix the power head pedestal in the T-shaped groove.

[0013] Preferably, side baffles are symmetrically arranged on the two sides of the power head turnover groove, shaft holes are arranged on the two sides of the power head turnover groove, a first locking groove and a second locking groove are formed in the inner wall of the shaft hole on one side of the power head turnover groove, a first outer guide plate and a second outer guide plate are arranged on the outer side of the shaft hole, and a motor support is fixedly installed on the side of the power head pedestal close to the first outer guide plate.

[0014] Preferably, the power head shaft is rotatably arranged in the shaft hole through a bearing, a shaft fixing groove and a locking pin telescopic groove are formed in the surface of the power head shaft close to the first locking groove, a locking pin guide rod is fixedly installed in the locking pin telescopic groove, and a locking pin is arranged in the locking pin telescopic groove.

[0015] Preferably, a locking pin guide hole is formed in the locking pin, the locking pin is slidably sleeved on the surface of the locking pin guide rod through the locking pin guide hole, a compression spring is arranged on the side of the locking pin close to the power head, and a locking block is fixedly arranged on the surface of the locking pin.

[0016] Preferably, the servo motor is fixedly installed on the surface of the motor support, and the motor output shaft is arranged at one end of the servo motor close to the power head pedestal.

[0017] Preferably, a first inner guide plate and a second inner guide plate are fixedly arranged in the motor output shaft, a shaft pin telescopic groove is formed in the inner wall of the servo motor, a shaft pin guide rod is fixedly installed in the shaft pin telescopic groove, and a shaft pin is slidably arranged in the shaft pin telescopic groove.

[0018] Preferably, a shaft pin guide hole is formed in the shaft pin, the shaft pin is slidably sleeved on the surface of the shaft pin guide rod through the shaft pin guide hole, a compression spring is arranged on the side of the shaft pin close to the servo motor, and a shaft block is fixedly arranged on the surface of the shaft pin.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] 1. By setting a switchable power head, when it is necessary to switch the horizontal position of the same type of tool to the vertical position, the motor output shaft drives the power head shaft to rotate. When the power head rotates 90 degrees to switch to the vertical position, the coupling pin is pushed into the interior of the coupling pin telescopic groove by the first outer guide plate, causing the coupling block to disengage from the interior of the coupling fixing groove. At this time, the motor output shaft continues to rotate 15 degrees, driving the second inner guide plate to press the locking pin, causing the locking block to enter the interior of the second locking groove, thereby fixing the power head in the vertical position. This realizes the switching of the horizontal and vertical positions of the same type of tool, eliminating the need to install two sets of the same type of tool on the tool turret, improving the utilization rate of the tool turret, and the switching cycle is shorter, thus improving the processing efficiency.

[0021] 2. By setting multiple sets of positioning blocks and positioning slots, and fixing the positioning blocks inside different positioning slots, the position of the power headstock inside the T-slot can be changed, which facilitates fine-tuning of the tool position as needed and improves the practicality of the tool holder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;

[0025] Figure 4 This is a schematic diagram of the power head support structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the second positioning plate structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the motor output shaft structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the connecting pin structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the power head structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the locking pin structure of the present invention.

[0031] In the diagram: turret 1, T-slot 11, telescopic slot 12, bearing seat 13, locking screw 14, power head base 2, first positioning plate 21, positioning slot 22, power head flipping slot 23, side baffle 24, motor bracket 25, shaft hole 26, first locking slot 261, second locking slot 262, first outer guide plate 27, second outer guide plate 28, power head 3, power head shaft 31, coupling fixing slot 311, locking pin telescopic slot 32, locking pin guide rod 321, locking pin 33, locking block 331, locking pin guide hole 332, tool chuck 34, servo motor 4, motor output shaft 41, first inner guide plate 42, second inner guide plate 43, coupling pin telescopic slot 44, coupling pin guide rod 441, coupling pin 45, coupling pin guide hole 451, coupling block 452, second positioning plate 5, positioning block 51, telescopic rod 52, pressure plate 53, threaded hole 54. Detailed Implementation

[0032] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0033] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0034] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two connected entities do not establish a connection relationship through an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0036] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Please see the appendix Figure 1 To be continued Figure 9 As shown, the present invention provides a high-rigidity tool post for a composite machining lathe, comprising:

[0038] The turret 1 has a T-shaped groove 11 on its surface and a bearing seat 13 fixedly mounted on its surface. The bearing seat 13 is located on both sides of the T-shaped groove 11 and a locking screw 14 is rotatably connected inside the bearing seat 13. The T-shaped groove 11 has telescopic grooves 12 on both sides and a second positioning plate 5 is provided inside the telescopic groove 12. The surface of the second positioning plate 5 is fixedly provided with multiple sets of positioning blocks 51. Two sets of telescopic rods 52 are fixedly connected to the side of the second positioning plate 5 away from the positioning blocks 51. The telescopic rods 52 extend to the outside of the turret 1 and are fixedly connected to a pressure plate 53. The surface of the pressure plate 53 has a threaded hole 54 and the pressure plate 53 is screwed to the surface of the locking screw 14 through the threaded hole 54.

[0039] A power head support 2 is inserted into the T-shaped groove 11. First positioning plates 21 are provided on both sides of the power head support 2. Multiple positioning grooves 22 are formed on the surface of the first positioning plates 21, corresponding to positioning blocks 51. The positioning grooves 22 and positioning blocks 51 cooperate to fix the power head support 2 inside the T-shaped groove 11. A power head flipping groove 23 is formed on the surface of the power head flipping groove 23. Side baffles 24 are symmetrically arranged on both sides of the power head flipping groove 23. Rotary shaft holes 26 are provided on both sides of the power head flipping groove 23. A first locking groove 261 and a second locking groove 262 are formed on the inner wall of the rotating shaft hole 26 on one side of the power head flipping groove 23. A first outer guide plate 27 and a second outer guide plate 28 are provided on the outer side of the rotating shaft hole 26. The power head support 2 is fixedly mounted on the side closest to the first outer guide plate 27. The device is equipped with a motor bracket 25. A power head 3 is installed inside the power head tilting groove 23. Power head shafts 31 are connected to both sides of the power head 3. The power head shafts 31 are rotatably mounted inside the shaft hole 26 via bearings. A coupling fixing groove 311 and a locking pin telescopic groove 32 are opened on the surface of the power head shaft 31 near the first locking groove 261. A locking pin guide rod 321 is fixedly installed inside the locking pin telescopic groove 32. A locking pin 33 is installed inside the locking pin telescopic groove 32. A locking pin guide hole 332 is opened inside the locking pin 33. The locking pin 33 is slidably sleeved on the surface of the locking pin guide rod 321 through the locking pin guide hole 332. A compression spring is provided on the side of the locking pin 33 near the power head 3. A locking block 331 is fixedly provided on the surface of the locking pin 33. A tool chuck 34 is provided at one end of the power head 3.

[0040] A servo motor 4 is disposed on one side of the power head base 2 and fixedly mounted on the surface of the motor bracket 25. A motor output shaft 41 is disposed at one end of the servo motor 4 near the power head base 2. The motor output shaft 41 is connected to the power head shaft 31 on one side of the power head 3. A first inner guide plate 42 and a second inner guide plate 43 are fixedly disposed inside the motor output shaft 41. The inner wall of 4 is provided with a connecting pin telescopic groove 44. A connecting pin guide rod 441 is fixedly installed inside the connecting pin telescopic groove 44. A connecting pin 45 is slidably arranged inside the connecting pin telescopic groove 44. A connecting pin guide hole 451 is provided inside the connecting pin 45. The connecting pin 45 is slidably sleeved on the surface of the connecting pin guide rod 441 through the connecting pin guide hole 451. A compression spring is provided on the side of the connecting pin 45 near the servo motor 4. A connecting block 452 is fixedly arranged on the surface of the connecting pin 45.

[0041] The present invention proposes a high-rigidity tool post for a composite machining lathe. In use, the power headstock 2 and the first positioning plate 21 are inserted into the T-slot 11, so that the first positioning plate 21 is located at the bottom of the second positioning plate 5. Rotating the locking screw 14 drives the pressure plate 53 to move towards the tool turret 1. The pressure plate 53 drives the second positioning plate 5 to move towards the first positioning plate 21 through the telescopic rod 52, so that the positioning block 51 is inserted into the positioning groove 22, thereby fixing the power headstock 2 inside the T-slot 11.

[0042] The cutting tool is fixedly connected to the power head 3 via the tool chuck 34. When it is necessary to switch the horizontal position of the same type of cutting tool to the vertical position, the servo motor 4 is started to drive the motor output shaft 41 to rotate. When the connecting pin telescopic groove 44 is aligned with the locking pin 33, the connecting pin 45 moves to the slope of the second outer guide plate 28, so that the connecting block 452 is inserted into the interior of the coupling fixing groove 311. At this time, the motor output shaft 41 drives the power head rotating shaft 31 to rotate through the connecting block 452. When the power head 3 rotates 90 degrees to switch to the vertical position, the connecting pin 45 is... The first outer guide plate 27 pushes into the interior of the coupling pin telescopic groove 44, causing the coupling block 452 to disengage from the interior of the coupling fixing groove 311. At this time, the motor output shaft 41 continues to rotate 15 degrees, driving the second inner guide plate 43 to press the locking pin 33, causing the locking block 331 to enter the interior of the second locking groove 262, thereby fixing the power head 3 in the longitudinal position, realizing the switching of the transverse and longitudinal positions of the same type of tool, eliminating the need to install two sets of the same type of tool on the tool turret 1, improving the utilization rate of the tool turret 1, and the switching formation is shorter, thus improving the processing efficiency.

[0043] As a further improvement of the present invention, by setting multiple sets of positioning blocks 51 and positioning grooves 22, and fixing the positioning blocks 51 inside different positioning grooves 22, the position of the power head support 2 inside the T-shaped groove 11 can be changed, which facilitates the fine adjustment of the tool position as needed and improves the practicality of the tool holder.

[0044] Working Principle: The high-rigidity tool post of the composite machining lathe proposed in this invention, during use, inserts the power head pedestal 2 and the first positioning plate 21 into the T-slot 11, so that the first positioning plate 21 is located at the bottom of the second positioning plate 5. Rotating the locking screw 14 drives the pressure plate 53 to move towards the tool turret 1. The pressure plate 53, through the telescopic rod 52, drives the second positioning plate 5 to move towards the first positioning plate 21, so that the positioning block 51 is inserted into the positioning groove 22, thereby fixing the power head pedestal 2 inside the T-slot 11. The tool is fixedly connected to the power head 3 through the tool chuck 34. When it is necessary to switch the horizontal position of the same type of tool to the vertical position, the servo motor 4 is started to drive the motor output shaft 41 to rotate. When the connecting pin extends... When the groove 44 is aligned with the locking pin 33, the coupling pin 45 moves to the slope of the second outer guide plate 28, so that the coupling block 452 is inserted into the inside of the coupling fixing groove 311. At this time, the motor output shaft 41 drives the power head shaft 31 to rotate through the coupling block 452. When the power head 3 rotates 90 degrees to switch to the longitudinal position, the coupling pin 45 is pushed into the inside of the coupling pin telescopic groove 44 by the first outer guide plate 27, so that the coupling block 452 is disengaged from the inside of the coupling fixing groove 311. At this time, the motor output shaft 41 continues to rotate 15 degrees, driving the second inner guide plate 43 to squeeze the locking pin 33, so that the locking block 331 enters the inside of the second locking groove 262, thereby fixing the power head 3 in the longitudinal position and realizing the switching of the transverse and longitudinal positions of the same type of tool.

[0045] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0046] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A high-rigidity tool post for a composite machining lathe, characterized in that, include: The turret (1) has a T-shaped groove (11) on its surface and telescopic grooves (12) on both sides of the T-shaped groove (11). A second positioning plate (5) is provided inside the telescopic groove (12). A power head base (2) is inserted into the T-shaped groove (11). A first positioning plate (21) is provided on both sides of the power head base (2). A power head flipping groove (23) is opened on the surface of the power head base (2). Side baffles (24) are symmetrically arranged on both sides of the power head flipping groove (23). A shaft hole (26) is provided on both sides of the power head flipping groove (23). A first locking groove (261) and a second locking groove (262) are opened on the inner wall of the shaft hole (26) on one side of the power head flipping groove (23). A first outer guide plate (27) and a second outer guide plate (28) are provided on the outer side of the shaft hole (26). A motor bracket (25) is fixedly installed on the side of the power head base (2) near the first outer guide plate (27). A power head (3) is provided inside the power head flipping groove (23). The two sides of the power head (3) are connected to A power head shaft (31) is rotatably mounted inside the shaft hole (26) via a bearing. A coupling fixing groove (311) and a locking pin telescopic groove (32) are provided on the surface of the power head shaft (31) near the first locking groove (261). A locking pin guide rod (321) is fixedly installed inside the locking pin telescopic groove (32). A locking pin (33) is provided inside the locking pin telescopic groove (32). A locking pin guide hole (332) is provided inside the locking pin (33). The locking pin (33) is slidably sleeved on the surface of the locking pin guide rod (321) through the locking pin guide hole (332). A compression spring is provided on the side of the locking pin (33) near the power head (3). A locking block (331) is fixedly provided on the surface of the locking pin (33). A tool chuck (34) is provided at one end of the power head (3). A servo motor (4) is disposed on one side of the power head base (2). The servo motor (4) is fixedly installed on the surface of the motor bracket (25). One end of the servo motor (4) is provided with a motor output shaft (41). The motor output shaft (41) is connected to the power head shaft (31) on one side of the power head (3). The motor output shaft (41) is disposed at one end of the servo motor (4) near the power head base (2). A first inner guide plate (42) and a second inner guide plate (43) are fixedly disposed inside the motor output shaft (41). The inner wall of the machine (4) is provided with a connecting pin telescopic groove (44). A connecting pin guide rod (441) is fixedly installed inside the connecting pin telescopic groove (44). A connecting pin (45) is slidably arranged inside the connecting pin telescopic groove (44). A connecting pin guide hole (451) is provided inside the connecting pin (45). The connecting pin (45) is slidably sleeved on the surface of the connecting pin guide rod (441) through the connecting pin guide hole (451). A compression spring is provided on the side of the connecting pin (45) near the servo motor (4). A connecting block (452) is fixedly arranged on the surface of the connecting pin (45).

2. The high-rigidity tool post of the composite machining lathe according to claim 1, characterized in that, The surface of the turret (1) is fixedly mounted with a bearing seat (13), which is located on both sides of the T-groove (11). The bearing seat (13) is rotatably connected with a locking screw (14).

3. The high-rigidity tool post of the composite machining lathe according to claim 2, characterized in that, The second positioning plate (5) has multiple sets of positioning blocks (51) fixedly installed on its surface. Two sets of telescopic rods (52) are fixedly connected to the side of the second positioning plate (5) away from the positioning blocks (51). The telescopic rods (52) extend to the outside of the turret (1) and are fixedly connected to a pressure plate (53). The surface of the pressure plate (53) is provided with a threaded hole (54). The pressure plate (53) is screwed to the surface of the locking screw (14) through the threaded hole (54).

4. The high-rigidity tool post of the composite machining lathe according to claim 3, characterized in that, The surface of the first positioning plate (21) has multiple sets of positioning grooves (22), which are correspondingly arranged with the positioning block (51). The positioning grooves (22) and the positioning block (51) cooperate to fix the power head base (2) inside the T-shaped groove (11).

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