Tool turret with built-in power unit

Abstract

The utility model relates to a tool turret with a built-in power unit, which comprises a spindle box, a cutterhead connected to the spindle box and a driving device for driving the cutterhead to axially rotate, a plurality of rotatable cutter shafts are arranged on the peripheral side of the cutterhead, a power cavity is arranged in the cutterhead, a first motor is fixedly mounted in the power cavity, and a second motor is fixedly mounted in the first motor. An output shaft of the first motor extends in the radial direction of the cutter head, and any cutter shaft rotates in the axial direction of the cutter head and then is in coupling transmission with the output shaft of the first motor. According to the tool turret, the motor is arranged in the tool disc, the transmission path and structure between the motor and the tool shaft can be simplified, the space of the spindle box is saved, the transmission efficiency of the motor and the tool shaft is improved, stability is better, and vibration and noise of the tool turret are smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a turret with a built-in power unit. Background Art

[0002] The power turret is a kind of tool that has its own power source and can independently provide the main motion and feed motion to the tool to complete the milling, drilling, and other processing procedures. The existing power turret structure is as shown in the Chinese patent literature, patent number:

[0003] As shown in CN202221575746.1, a power turret mainly includes a turret body, a cutter disc and a driving device. The cutter disc is rotatably connected to the turret body, and the turret body is used to be fixed on the equipment. A plurality of cutting tools are installed on the cutter disc along the circumferential direction of the cutter disc, and the driving device is used to drive the cutting tools on the cutter disc to rotate. In the prior art, the motor in the driving device is installed on the turret body, and the power is transmitted to the cutting tools through the main shaft of the turret body and the gear box placed in the cutter disc. The transmission structure is complex, occupies most of the space of the turret body, and has low transmission efficiency. Therefore, the applicant provides a new solution to the above-mentioned technical problems through further improvement and perfection of the structure for consumers to choose and use. Summary of the invention

[0004] The purpose of the utility model is to solve the above-mentioned existing problems and provide a turret with a simple and reasonable structure and a built-in power unit. Its main function is to simplify the transmission path and structure between the motor and the knife shaft, save spindle box space, and improve the transmission efficiency of the motor and the knife shaft.

[0005] A tool turret with a built-in power unit includes a spindle box, a cutter disc connected to the spindle box, and a driving device for driving the cutter disc to rotate axially. A plurality of rotatable tool shafts are provided on the circumference of the cutter disc. A power chamber is provided in the cutter disc. A first motor is fixedly installed in the power chamber. The output shaft of the first motor is extended radially along the cutter disc. Any tool shaft is coupled to the output shaft of the first motor for transmission after rotating axially with the cutter disc.

[0006] The purpose of the utility model can also be solved by the following technical measures:

[0007] As a more specific solution, a first coupling part is provided on the output shaft of the first motor, a second coupling part is provided on the inner end of the knife shaft, and the output shaft is coupled with the knife shaft through the cooperation of the first coupling part and the second coupling part.

[0008] As a further solution, a motor bracket sleeve is also included, the first motor is mounted on the motor bracket sleeve and placed horizontally in the power cavity, and the front and rear ends of the motor bracket sleeve are provided with front and rear supporting shafts corresponding to the axial position of the cutter disc and cooperating with the cutter disc for rotation, and bearings are also provided between the front and rear supporting shafts and the cutter disc.

[0009] As a further solution, a positioning shaft is also provided in the spindle box, one end of the positioning shaft is tightly connected to the rear support shaft, and the other end is connected to the spindle box through a coupling; a lead channel is axially opened in the positioning shaft, one port of the lead channel is connected to the power cavity, and the other port is connected to the outside of the spindle box.

[0010] As a further solution, the cutter disc includes a cutter disc body, a rear end of the cutter disc body is provided with a sleeve, and is rotatably connected to the spindle box through the sleeve, a front end of the cutter disc body is provided with a cutter disc opening, a front end cover is connected to the cutter disc opening, the front end cover is rotatably cooperated with the front support shaft, a support seat extends in the middle of the cutter disc body, the rear support shaft is rotatably connected to the support seat, and the cutter disc body defines a power chamber between the front end cover and the support seat.

[0011] As a further solution, a straight-line flat head extends from the inner end of the knife shaft, and the straight-line flat head constitutes a second coupling part; a straight-line groove is provided on the output shaft, and the straight-line groove is placed in the rotation path of the straight-line flat head and constitutes a first coupling part. When the straight-line flat head cuts into the straight-line groove, the output shaft is coupled with the knife shaft for transmission.

[0012] As a further solution, a positioning ring is also connected to the motor bracket sleeve, which is coaxially arranged with the cutter disc and has an arc avoidance groove corresponding to the output shaft of the first motor. The inner side of the positioning ring is provided with a positioning end face that cooperates with the I-shaped flat head, and the positioning end face has a smooth transition with a groove wall of the I-shaped groove.

[0013] As a further solution, inclined guiding surfaces are provided on both sides of the groove wall of the I-shaped groove, and the positioning end surface smoothly transitions to the groove wall through the inclined guiding surfaces.

[0014] As a further solution, the driving device includes a second motor, which is fixedly mounted on the spindle box, and the output end of the second motor is connected to a driving gear. An outer gear ring is coaxially connected to the sleeve of the cutter disc, and the outer gear ring is meshed with the driving gear.

[0015] As a further solution, a plurality of mounting end surfaces are provided on the circumferential side of the cutter disc, a cutter seat is fastened to the mounting end surface, and the cutter shaft is rotatably connected to the cutter seat and is arranged along the radial direction of the cutter disc.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model discloses a turret with a built-in power unit. The motor is built into the cutter disc, which can simplify the transmission path and structure between the motor and the cutter shaft, save spindle box space, improve the transmission efficiency of the motor and the cutter shaft, improve stability, and reduce the vibration and noise of the turret. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of a turret in the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the cutter disc in the utility model.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the turret in the utility model.

[0021] Figure 4 It is a schematic diagram of the cooperation between the knife shaft and the output shaft or the positioning ring in the utility model.

[0022] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0023] Figure 6 for Figure 1 Enlarged structural diagram at B in the middle. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figures 1 to 6 As shown, a turret with a built-in power unit includes a spindle box 1, a cutter disc 2 connected to the spindle box 1, and a driving device 3 for driving the cutter disc 2 to rotate axially. A plurality of rotatable cutter shafts 4 are provided on the circumferential side of the cutter disc 2. A power chamber 201 is provided in the cutter disc 2. A first motor 5 is fixedly installed in the power chamber 201. The output shaft 51 of the first motor 5 is extended along the radial direction of the cutter disc 2. Any cutter shaft 4 is coupled with the output shaft 51 of the first motor 5 for transmission after axially rotating with the cutter disc 2. This type of turret has the motor built into the cutter disc, which can simplify the transmission path and structure between the motor and the cutter shaft, save spindle box space, improve the transmission efficiency of the motor and the cutter shaft, and have better stability, so that the vibration and noise of the turret are reduced.

[0026] It also includes a motor bracket sleeve 6, the first motor 5 is installed on the motor bracket sleeve 6 and placed horizontally in the power chamber 201, and the front and rear ends of the motor bracket sleeve 6 are corresponding to the axial position of the cutter disc 2, and a front support shaft portion 61 and a rear support shaft portion 62 that cooperate with the cutter disc 2 for rotation are provided, and bearings are also provided between the front support shaft portion 61 and the rear support shaft portion 62 and the cutter disc 2; the front support shaft portion 61 constitutes a first support point of the first motor 5, and the rear support shaft portion 62 constitutes a second support point of the first motor 5, and the first motor 5 can be more stably installed in the power chamber through the front and rear support points.

[0027] A positioning shaft 7 is also provided in the spindle box 1, one end of which is tightly connected to the rear support shaft 62, and the other end is connected to the spindle box 1 through a coupling 8; a lead wire channel 701 is axially opened in the positioning shaft 7, one end of which is connected to the power cavity 201, and the other end of which is connected to the outer side of the spindle box 1;

[0028] In this embodiment, a support platform 63 is further provided on the motor bracket sleeve 6, and the rear support shaft portion 62 is arranged on the support platform 63. The support platform 63 is provided with threading holes 631 in all directions. The threading holes 631 pass through the rear support shaft portion 62 and are connected with the lead channel 701. The wires on the first motor 5 can be led out of the spindle box 1 through the threading holes 631 and the lead channel 701, and the rear end of the positioning shaft 7 is connected to the spindle box 1 through the coupling 8 to form a third support point. Therefore, through the three support points, the first motor 5 and the positioning shaft 7 are more stable during movement, reducing noise and vibration.

[0029] The cutter disc 2 includes a cutter disc body 21, a shaft sleeve 22 is provided at the rear end of the cutter disc body 21, and the shaft sleeve 22 is used to rotate with the spindle box 1, a cutter disc opening 202 is provided at the front end of the cutter disc body 21, a front end cover 23 is connected to the cutter disc opening 202, the front end cover 23 is rotatably matched with the front support shaft 61, a support seat 24 is extended in the middle of the cutter disc body 21, the rear support shaft 62 is rotatably connected with the support seat 24, and the cutter disc body 21 defines a power chamber 201 between the front end cover 23 and the support seat 24;

[0030] The front end cover 23 can open the power chamber 201 and can be used to inspect the components in the power chamber 201. The support seat 24 is provided with an axial hole adapted to the rear support shaft 62. The rear support shaft 62 can be rotatably connected in the axial hole and provide support.

[0031] In addition, a sealing ring is provided on the peripheral side of the front end cover 23 to seal the gap between the front end cover 23 and the cutter head body 21 .

[0032] The output shaft 51 of the first motor 5 is provided with a first coupling portion, the inner end of the knife shaft 4 is provided with a second coupling portion, and the output shaft 51 is coupled with the knife shaft 4 through the first coupling portion and the second coupling portion.

[0033] Specifically, an I-shaped flat head 41 is extended from the inner end of the knife shaft 4, and the I-shaped flat head 41 constitutes the second coupling part; an I-shaped groove 52 is provided on the output shaft 51, and the I-shaped groove 52 is placed in the rotation path of the I-shaped flat head 41 and constitutes the first coupling part. When the I-shaped flat head 41 cuts into the I-shaped groove 52, the output shaft 51 is coupled with the knife shaft 4 for transmission; the I-shaped flat head and the I-shaped groove 52 cooperate to ensure the reliability of its operation. Under the working load operation, it has the advantages of large bearing capacity, good structural rigidity, strong shock resistance, low temperature rise, small deformation, long service life, simple processing, low manufacturing cost, and convenient equipment maintenance, maintenance and repair.

[0034] The motor bracket sleeve 6 is also connected to a positioning ring 9, which is coaxially arranged with the cutter disc 2 and surrounds the motor bracket sleeve 6, and is provided with an arc avoidance groove 901 corresponding to the output shaft 51 of the first motor 5. The inner side of the positioning ring 9 is provided with a positioning end face 902 which is positioned and matched with the I-shaped flat head 41, and the positioning end face 902 has a smooth transition with a groove wall 521 of the I-shaped groove 52; when the cutter shaft 4 rotates and deviates from the output shaft 51 of the first motor 5, the I-shaped flat head 41 can resist or abut against the positioning end face 902, so that the cutter shaft 4 can maintain an angle coupled with the I-shaped groove 52 at any time, thereby achieving a positioning effect.

[0035] The groove wall 521 of the I-shaped groove 52 is provided with inclined guide surfaces 522 on both sides, and the positioning end surface 902 smoothly transitions with the groove wall 521 through the inclined guide surfaces 522; the I-shaped flat head 41 can be guided to cut into the I-shaped groove 5 better and faster, thereby improving the coupling efficiency.

[0036] The driving device 3 includes a second motor 31, which is fixedly mounted on the spindle box 1, and the output end of the second motor 31 is connected to a driving gear 32. An outer gear ring 25 is coaxially connected to the shaft sleeve 22 of the cutter disc 2, and the outer gear ring 25 is meshed with the driving gear 32. The second motor 31 controls the axial rotation of the cutter disc 2 relative to the first motor 5 to achieve rapid tool change.

[0037] The circumferential side of the cutter disc 2 is provided with a plurality of mounting end faces 203, to which a cutter seat 401 is fastened, and the cutter shaft 4 is rotatably connected to the cutter seat 401 and is arranged along the radial direction of the cutter disc 2; this structure enables the output shaft of the cutter, the cutter shaft 4 and the first motor 5 to be coaxially arranged, which can improve the transmission efficiency.

[0038] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A tool turret with a built-in power unit, comprising a spindle box (1), a cutter disc (2) connected to the spindle box (1), and a driving device (3) for driving the cutter disc (2) to rotate axially, wherein a plurality of rotatable cutter shafts (4) are provided on the circumference of the cutter disc (2), and characterized in that: The cutter disc (2) is provided with a power chamber (201), a first motor (5) is fixedly mounted in the power chamber (201), an output shaft (51) of the first motor (5) is arranged to extend radially along the cutter disc (2), and any cutter shaft (4) is coupled to the output shaft (51) of the first motor (5) for transmission after rotating axially with the cutter disc (2).

2. A turret with a built-in power unit according to claim 1, characterized in that : It also includes a motor support sleeve (6), the first motor (5) is mounted on the motor support sleeve (6) and is placed horizontally in the power chamber (201), and the front and rear ends of the motor support sleeve (6) are provided with a front support shaft portion (61) and a rear support shaft portion (62) that are rotatably matched with the cutter disc (2) at positions corresponding to the axis of the cutter disc (2), and bearings are also provided between the front support shaft portion (61) and the rear support shaft portion (62) and the cutter disc (2).

3. A turret with a built-in power unit according to claim 2, characterized in that A positioning shaft (7) is also provided in the spindle box (1), one end of the positioning shaft (7) is tightly connected to the rear support shaft (62), and the other end is connected to the spindle box (1) via a coupling (8); a lead wire channel (701) is axially opened in the positioning shaft (7), one end of the lead wire channel (701) is connected to the power cavity (201), and the other end is connected to the outer side of the spindle box (1).

4. A turret with a built-in power unit according to claim 3, characterized in that The cutter disc (2) comprises a cutter disc body (21), a shaft sleeve (22) is provided at the rear end of the cutter disc body (21), and the cutter disc body (21) is rotatably connected to the spindle box (1) through the shaft sleeve (22), a cutter disc opening (202) is provided at the front end of the cutter disc body (21), a front end cover (23) is connected to the cutter disc opening (202), the front end cover (23) is rotatably engaged with the front support shaft (61), a support seat (24) extends in the middle of the cutter disc body (21), the rear support shaft (62) is rotatably connected to the support seat (24), and the cutter disc body (21) defines a power chamber (201) between the front end cover (23) and the support seat (24).

5. The turret with a built-in power unit according to claim 2, characterized in that The output shaft (51) of the first motor (5) is provided with a first coupling portion, the inner end of the knife shaft (4) is provided with a second coupling portion, and the output shaft (51) is coupled to the knife shaft (4) for transmission through the cooperation of the first coupling portion and the second coupling portion.

6. A turret with a built-in power unit according to claim 5, characterized in that : An I-shaped flat head (41) extends from the inner end of the knife shaft (4), and the I-shaped flat head (41) constitutes a second coupling portion; a I-shaped groove (52) is provided on the output shaft (51), and the I-shaped groove (52) is placed in the rotation path of the I-shaped flat head (41) and constitutes a first coupling portion. When the I-shaped flat head (41) cuts into the I-shaped groove (52), the output shaft (51) and the knife shaft (4) are coupled for transmission.

7. A turret with a built-in power unit according to claim 6, characterized in that The motor support sleeve (6) is also connected to a positioning ring (9), the positioning ring (9) is coaxially arranged with the cutter disc (2), and is provided with an arc avoidance groove (901) corresponding to the output shaft (51) of the first motor (5), the inner side of the positioning ring (9) is provided with a positioning end face (902) for positioning with the straight flat head (41), and the positioning end face (902) smoothly transitions with a groove wall (521) of the straight groove (52).

8. The turret with a built-in power unit according to claim 7, characterized in that : Inclined guide surfaces (522) are provided on both sides of the groove wall (521) of the I-shaped groove (52), and the positioning end surface (902) smoothly transitions with the groove wall (521) through the inclined guide surfaces (522).

9. The turret with a built-in power unit according to claim 4, characterized in that The driving device (3) comprises a second motor (31), the second motor (31) is fixedly mounted on the spindle box (1), and the output end of the second motor (31) is connected to a driving gear (32), and an outer gear ring (25) is coaxially connected to the shaft sleeve (22) of the cutter disc (2), and the outer gear ring (25) is meshed with the driving gear (32).

10. The turret with a built-in power unit according to claim 1, characterized in that A plurality of mounting end surfaces (203) are provided on the circumferential side of the cutter disc (2), a cutter seat (401) being fastened to the mounting end surface (203), and the cutter shaft (4) is rotatably connected to the cutter seat (401) and is arranged along the radial direction of the cutter disc (2).

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