TWI503202B - Turning machine - Google Patents

Description

Turning machine

The invention relates to a processing machine; in particular to a turning machine.

With the advancement of industrial technology, the structural design of many workpieces and handicrafts has become more and more precise, and it is often necessary to undergo multiple processing (such as turning, surface grinding, etc.) to achieve the structural design requirements. In the turning process, a turning tool is usually used to feed a tool into the surface of a workpiece to be processed, and then the tool is driven to rotate at a high speed to cut off the unnecessary portion of the workpiece to be processed. A structure such as a groove or a hole is formed on the workpiece.

Conventional turning machines are driven by the hydraulic or pneumatic drive to drive the tool. However, since the oil pressure and the air pressure cannot achieve the instantaneous and accurate displacement of the tool, the conventional turning machine can usually only move the tool from a point to a predetermined position, in other words, the tool can only feed the tool to the reserved position. Or retracting the knife back to the starting point, and unable to gradually shift while turning, so that many structures (such as threads) cannot be turned through the aforementioned turning machine. As a result, the industry will inevitably need to purchase additional machines to achieve the purpose of shaping other structures, and increase the cost of labor.

In view of the above, the object of the present invention is to provide a turning machine capable of accurately controlling the stepwise displacement of a tool during turning machining, and thereby turning other workpiece structures on the workpiece to be turned.

In order to achieve the above object, the turning process provided by the present invention The machine includes a spindle, a turning head, a pull rod, a cutter, a first motor, a second motor, a displacement device, and a third motor. Wherein, the main shaft is rotatable and is a hollow long tubular body; the turning head is disposed at one end of the main shaft and rotates synchronously with the main shaft, and has a insert portion movable along a radial direction of the main shaft; the pull rod Provided in the main shaft and connected to the turning head, and reciprocable relative to the main shaft along the long axis of the main shaft; when the pulling rod moves along the long axial direction of the main shaft, driving the insert portion along the main shaft Radial movement; the cutter is disposed on the inserting portion of the turning head; the first motor is used to drive the spindle rotator; and the second motor is used to drive the spindle to reciprocate along a long axis of the spindle; a displacement device is disposed at the other end of the main shaft and coupled to the pull rod for being driven to move while driving the pull rod along a long axial direction of the main shaft; the third motor is coupled to the displacement device for driving the The displacement device moves relative to the main shaft to drive the pull rod to move along the long axis of the main shaft.

In this way, through the above design, the tool of the present invention can be gradually displaced during the turning process, thereby achieving the purpose of shaping other structures on the object to be processed.

10‧‧‧ Spindle

20‧‧‧ Turning head

22‧‧‧Inlay knife department

30‧‧‧Tools

40‧‧‧ lever

51‧‧‧First motor

52‧‧‧second motor

53‧‧‧third motor

60‧‧‧displacement device

62‧‧‧ Fixed Department

621‧‧‧Sleeve

622‧‧‧ hole

64‧‧‧ Displacement Department

641‧‧‧guides

66‧‧‧Proximity switch

68‧‧‧Inductive parts

70‧‧‧Control circuit

100‧‧‧Processing

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a turning machine in accordance with a preferred embodiment of the present invention.

Figure 2 is a perspective view of the displacement device and the third motor.

Fig. 3 is a side view showing that the displacement portion is movable relative to the fixed portion.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. As shown in FIG. 1, a turning machine according to a preferred embodiment of the present invention is used for a workpiece 100. Turning and packaging The utility model comprises a spindle 10, a turning head 20, a cutter 30, a pull rod 40, a first motor 51, a second motor 52, a displacement device 60, a third motor 53, and a control circuit 70. Wherein: the main shaft 10 is a hollow long pipe body and can be driven to rotate around its axis.

The turning head 20 is disposed at one end of the main shaft 10, and can rotate synchronously with the main shaft 10 centering on the axis of the main shaft 10. The turning head 20 has a cutting portion 22 that is movable in the radial direction of the main shaft 10, and the insert portion 22 is provided for the tool 30, and the setting position of the tool 30 is offset from the axis of the main shaft 10. In other words, the cutter 30 is eccentrically disposed on the turning head 20.

The pull rod 40 is disposed in the main shaft 10 and reciprocally movable in the main shaft 10 relative to the main shaft 10 along the long axis of the main shaft 10, and one end is connected to the turning head 20. In addition, when the pull rod 40 moves along the long axis of the main shaft 10, the insert portion 22 of the turning head 20 is driven to move along the radial direction of the main shaft 10, and at the same time, the cutter 30 on the insert portion 22 is driven. Moving in the radial direction of the main shaft 10.

The first motor 51 is disposed below the main shaft 10 and drives the main shaft 10 to rotate through a transmission mechanism (not shown).

The second motor 52 is disposed above the main shaft 10 and is driven to reciprocate along the long axis of the main shaft 10 through another transmission mechanism (not shown).

Referring to FIG. 2 and FIG. 3 , the displacement device 60 is disposed at the other end of the main shaft 10 and reciprocates along the long axis of the main shaft 10 in synchronization with the main shaft 10 , and has a fixing portion 62 and a displacement portion 64 . A proximity switch 66 and a sensing member 68. The fixing portion 62 is connected to the main shaft 10, and has two sleeves 621 respectively located on two sides below the main shaft 10, and has a hole 622 for the rod 40 to pass through. The displacement portion 64 is connected to the fixing portion 62 Connected and movable relative to the fixing portion 62. In this embodiment, the displacement portion 64 has two guiding rods 641, and the two guiding rods 641 are parallel to the main shaft 10 and are respectively disposed in the sleeves 621, thereby restricting the displacement portion 64 only along the The long axial movement of the spindle 10. In addition, the displacement portion 64 is coupled to the pull rod 40 passing through the hole 622, so that when the main shaft 10 rotates, the restriction of the combination of the two sleeves 621 and the two guide rods 641 can prevent the rod 40 from accompanying The spindle 10 rotates, and when the displacement portion 64 moves, the pull rod 40 will be simultaneously moved relative to the main shaft 10. The proximity switch 66 is disposed on the displacement portion 64, and the sensing member 68 is disposed on the fixing portion 62. When the displacement portion 64 and the fixing portion 62 are close to a predetermined distance, the proximity switch 66 senses The sensing member 68 is detected to generate a signal.

The third motor 53 is connected to the displacement portion 64 of the displacement device 60 for driving the displacement portion 64 to move relative to the fixing portion 62, thereby driving the rod 40 to move relative to the spindle 10. In the embodiment, the third motor 53 is a servo motor, which has the advantage that the preset speed or steering can be generated accurately and quickly according to requirements.

The control circuit 70 is electrically connected to the first motor 51, the second motor 52, the third motor 53, and the proximity switch 66 for individually controlling the rotation speed of the motors 51-53 according to the needs of the user for turning. Or steering, and receiving the signal of the proximity switch 66 to identify whether the displacement portion 64 and the fixing portion 62 have approached the predetermined distance, thereby performing the setting of the return to zero of the third motor 53 so that the control The circuit 70 can be more accurate in the control of the third motor 53, and can be more accurate and precise when controlling the displacement amplitude of the pull rod 40 by the third motor 53.

In this way, when the user wants to perform turning processing on the workpiece 100, the rotation speed and steering of the motors 51-53 can be quickly and precisely controlled through the control circuit 70, so that the spindle rotates at 10 high speeds. The position of the insert portion 22 can still be adjusted by controlling the movement of the pull rod 40. And through the eccentric design, the cutter 30 on the turning head 20 can be stably and continuously pressed against the surface of the workpiece 100 to achieve the purpose of turning, and during turning, the insert can be adjusted according to the shape requirement of the turning. The tool 30 is gradually displaced by the position of the blade portion 22.

In this way, through the above design, the disadvantages that the conventional use of oil pressure or air pressure cannot be precisely controlled can be effectively improved, so that the turning machine can turn a thread or taper on the surface of the workpiece 100. Or a structure that cannot be processed by a similar type of turning machine, such as a shaped hole. In addition, the above description is only for the preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

10‧‧‧ Spindle

20‧‧‧ Turning head

22‧‧‧Inlay knife department

30‧‧‧Tools

40‧‧‧ lever

51‧‧‧First motor

52‧‧‧second motor

53‧‧‧third motor

60‧‧‧displacement device

70‧‧‧Control circuit

Claims (7)

A turning machine comprising: a spindle, a rotatable, hollow hollow tube; a turning head disposed at one end of the spindle and rotating synchronously with the spindle, and having a insert portion along the a radial movement of the main shaft; a pull rod disposed in the main shaft and coupled to the turning head, and reciprocable relative to the main shaft along a long axis of the main shaft; when the pull rod moves along a long axial direction of the main shaft, Driving the insert portion along the radial direction of the spindle; a cutter disposed on the insert portion of the turning head; a first motor for driving the spindle rotateer; and a second motor for driving the spindle Reciprocating along a long axis of the main shaft; a displacement device disposed at the other end of the main shaft and coupled to the pull rod for being driven to move while simultaneously driving the pull rod along a long axial direction of the main shaft; The third motor is coupled to the displacement device for driving the displacement device to move relative to the main shaft to drive the rod to move along the long axis of the main shaft. The turning machine according to claim 1, further comprising a control circuit electrically connected to the first motor, the second motor and the third motor for controlling the rotation speed or steering of the motors. The turning machine according to claim 1, wherein the displacement device has a fixing portion and a displacement portion; the fixing portion is coupled to the main shaft; The fixing portion and the pull rod are connected; the displacement portion is driven by the third motor to move relative to the fixing portion, and the rod is driven to move along the long axis of the main shaft. The turning machine according to claim 3, wherein the displacement portion moves in the same direction as the rod, and the displacement portion has two guiding rods, and the two guiding rods are parallel to the main shaft; the fixing portion has two sleeves The two guiding rods are arranged to restrict the displacement portion from moving only along the long axis of the main shaft. The shifting device of claim 3, wherein the displacement device further comprises a proximity switch and a pair of sensing members that are adjacent to the switch, respectively disposed on the displacement portion and the fixing portion of the displacement device for detecting whether the displacement portion is The lever has been moved to a predetermined position. The turning machine according to claim 1, wherein the turning head is rotated about an axis of the main shaft, and the tool is eccentrically disposed on the inserting portion of the turning head. The turning machine of claim 1, wherein the third motor is a servo motor.