CN214922269U - Machining center revolving stage transmission - Google Patents

Abstract

The utility model relates to a digit control machine tool technical field especially relates to a machining center revolving stage transmission, including dividing platform mechanism, still include the frame, the frame includes the bottom plate and is located the riser of bottom plate both sides respectively, is equipped with horizontal lead screw between two risers, is equipped with in the riser of one side wherein and is used for the drive lead screw pivoted motor, be equipped with on the lead screw and be used for driving the nut of coaxial swing of dividing platform mechanism and translation. The utility model discloses only regard as the power supply through a motor, it is with low costs to carry out the switching of action through stop gear and do translation and two kinds of actions of coaxial rotation with the limited nut under the drive of lead screw, with control indexing table mechanism respectively and carry out horizontal translation and use the lead screw as two kinds of actions of pivot wobbling, simple structure switches the convenience, and in use flexibility ratio high stability is good.

Description

Machining center revolving stage transmission

Technical Field

The utility model relates to a digit control machine tool technical field especially, relates to a machining center revolving stage transmission.

Background

The numerical control machining center is a high-efficiency automatic machine tool which is composed of mechanical equipment and a numerical control system and is suitable for machining complex parts, the comprehensive machining capacity of the machine tool is high, and a workpiece can finish more machining contents after being clamped once.

In the prior art, machining centers are classified into a plurality of categories, such as single-axis, double-axis, three-axis categories and the like, the movable range of a turntable is different when the number of axes is different, however, the machining center with more axes and more complex motion has more complex transmission structure required in the machining center, more driving sources are required, the cost is higher, and the machining center is difficult to be put into various production activities in large quantity.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a machining center turntable transmission device with a simple structure and a single driving source for controlling the coaxial swinging and translation of the index table.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a machining center revolving stage transmission, includes dividing table mechanism, still includes the frame, the frame includes the bottom plate and is located the riser of bottom plate both sides respectively, is equipped with horizontal lead screw between two risers, is equipped with in the riser of one side wherein and is used for the drive lead screw pivoted motor, be equipped with on the lead screw and be used for driving the nut of coaxial swing of dividing table mechanism and translation, the nut both ends seted up respectively with the coaxial annular of lead screw, dividing table mechanism with the nut links firmly, be equipped with the spout on the frame, be equipped with on the spout and be used for injecing the stop gear of nut action.

Compare prior art, the utility model has the advantages that:

the two-way rotary indexing table is characterized in that only one motor is used as a power source, the cost is low, the switching of actions is carried out through the limiting mechanism so as to limit the nut to do two actions of translation and coaxial rotation under the driving of the lead screw, the indexing table mechanism is controlled to respectively carry out two actions of transverse translation and swinging by taking the lead screw as a rotating shaft, the structure is simple, the switching is convenient, and the flexibility, the stability and the like are good in use.

Furthermore, the nut is in threaded connection with the lead screw, and the screw transmission is stable and high in precision.

Further, stop gear includes slider, electric telescopic handle, movable block, locking groove and lock piece, the slider with spout sliding connection, electric telescopic handle link firmly in the slider upper end, the movable block link firmly in electric telescopic handle upper end, two the lock piece link firmly in the movable block stretches into two respectively in the annular, two the both ends that the lock piece is in opposite directions slide support in the ring groove bottom surface, the locking groove is located on the frame, the movable block lower extreme stretches into in the locking groove, stop gear and nut keep in touch, the lock piece is minimum with ring groove bottom surface sliding friction power, and the action is smooth and easy, and electric telescopic handle control action is stable.

Furthermore, the lower end face of the movable block is provided with a tooth form, the bottom surface of the locking groove is provided with a corresponding tooth form, and the lower end face of the movable block abuts against the bottom surface of the locking groove to lock the movable block and the locking groove, so that the locking effect is good, and the movable block cannot move to limit the axial action of the nut.

Furthermore, the upper end face of the locking piece is provided with a tooth shape, the circumferential wall of the annular groove close to one side of the screw rod is provided with a corresponding tooth shape, and the tooth shape of the upper end face of the locking piece is abutted to the tooth shape of the circumferential wall of the annular groove to lock the locking piece with the annular groove, so that the locking effect is good, the nut cannot rotate and can only move horizontally with the limiting mechanism.

Furthermore, the sliding groove is parallel to the lead screw, and the locking groove is parallel to the lead screw, so that the nut and the limiting mechanism can move in a translation manner under the driving of the lead screw smoothly.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a front sectional view of the present invention;

FIG. 4 is a schematic structural diagram of B-B in FIG. 3;

fig. 5 is a schematic view of the nut of fig. 4 in an operating state in which the nut is limited to a turning motion.

Reference numerals: 11. a machine base; 20. an index table mechanism; 30. a motor; 31. a lead screw; 40. a chute; 41. a slider; 42. an electric telescopic rod; 43. a movable block; 44. a locking groove; 45. a locking piece; 50. a nut; 51. and a ring groove.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Example (b):

referring to fig. 1 to 5, the present embodiment provides a machining center turntable transmission device, in the prior art, a machining center has many classifications, such as single-axis, double-axis, and three-axis classifications, where the number of axes is different, the movable range of the turntable is also different, however, the more the number of axes is, the more the movement is, the more the transmission structure is, the more the driving source is needed, the higher the cost is, and it is difficult to put into various production activities in large quantities, the present invention provides a machining center turntable transmission device with a simple structure and controlling two movable directions by a single driving source, which includes a dividing table mechanism 20, and further includes a machine base 11, the machine base 11 includes vertical plates respectively located at two sides, a transverse screw 31 is provided between the two vertical plates, a motor 30 for driving the screw 31 to rotate is provided in the vertical plate at one side, be equipped with on the lead screw 31 and be used for driving nut 50 of the coaxial swing of dividing table mechanism 20 and translation, 50 both ends of nut seted up respectively with the coaxial annular 51 of lead screw 31, dividing table mechanism 20 with nut 50 links firmly, nut 50 with lead screw 31 threaded connection, be equipped with spout 40 on the frame 11, spout 40 with the lead screw 31 is parallel, be equipped with on the spout 40 and be used for injecing the stop gear of nut 50 action.

The utility model discloses only through motor 30 driven lead screw 31 as the power supply, it is with low costs to carry out the switching of action through stop gear and do the translation with injecing nut 50 under the drive of lead screw 31 and rotate two kinds of actions, with control indexing table mechanism 20 respectively and carry out horizontal translation and use lead screw 31 as two kinds of actions of pivot pivoted, simple structure switches the convenience, and in use flexibility ratio high stability is good.

Specifically, in order to make the nut 50 perform translational motion under the driving of the lead screw 31, the limiting mechanism includes a slider 41, an electric telescopic rod 42, a movable block 43, a locking groove 44 and a locking piece 45, the slider 41 is slidably connected to the sliding groove 40, the electric telescopic rod 42 is fixedly connected to the upper end of the slider 41, the movable block 43 is fixedly connected to the upper end of the electric telescopic rod 42, the two locking pieces 45 are fixedly connected to the movable block 43 and respectively extend into the two annular grooves 51, two opposite ends of the two locking pieces 45 are slidably abutted to the bottom surfaces of the annular grooves 51, so that the limiting mechanism is kept in contact with the nut 50 at two sides through the two locking pieces 45, the direction of the nut 50 acting on the lead screw 31 is limited, the sliding friction between the locking pieces 45 and the bottom surfaces of the annular grooves 51 is extremely small, and the relative sliding between the locking pieces 45 and the bottom surfaces of the annular grooves 51 is extremely smooth, the end face of the locking piece 45 is provided with a tooth shape, the circumferential wall of the annular groove 51 close to the lead screw 31 is provided with a corresponding tooth shape, and the tooth shapes of the annular groove and the lead screw are fine to enhance the precision.

When the electric telescopic rod 42 is in an extending state, the movable block 43 can be jacked upwards to further drive the upper end surface of the locking piece 45 to move upwards and abut against the peripheral wall of the annular groove 51, so that the tooth shapes on the surfaces of the locking piece 45 and the annular groove 51 are meshed, the nut 50 is equivalent to the movable block 43 and acts together, and the movable block 43 and the sliding groove 40 can only slide along with the sliding block 41 to ensure that the nut 50 cannot rotate, at the moment, the motor 30 is started to drive the screw rod 31 to rotate, so that the indexing table mechanism 20 is driven by the nut 50 to move along the screw rod 31 to horizontally translate, and further the transverse position adjustment action of the indexing table mechanism 20 is realized.

In order to enable the nut 50 to rotate under the driving of the screw rod 31, the locking groove 44 is arranged on the machine base 11, the lower end of the movable block 43 extends into the locking groove 44, the locking groove 44 is parallel to the screw rod 31, the lower end surface of the movable block 43 is provided with a tooth shape, and the bottom surface of the locking groove 44 is provided with a corresponding tooth shape.

When the electric telescopic rod 42 is in a contracted state, the movable block 43 is driven to penetrate downwards into the locking groove 44, so that the lower end surface of the movable block 43 is downward abutted against the bottom surface of the locking groove 44, and the tooth profiles of the two surfaces are meshed with each other, so that the movable block 43 is locked with the locking groove 44, and then the movable block 43 is equivalent to be integrated with the machine base 11, the movable block 43 cannot move relative to the machine base 11, and the nut 50 cannot move transversely because the locking piece 45 abuts against the two bottom surfaces of the annular groove 51, and because the sliding friction force between the locking piece 45 and the bottom surface of the annular groove 51 is extremely small, the nut 50 slides smoothly relative to the locking piece 45, at this time, the motor 30 is started to drive the lead screw 31 to rotate, and because the translation of the nut 50 is limited, the nut 50 does not act on the thread transmission of the lead screw 31, the screw rod 31 drives the nut 50 to rotate together, the nut 50 slides relative to the locking sheet 45, and then the indexing table mechanism 20 is driven to swing by taking the screw rod 31 as a rotating shaft, so that the orientation of the indexing table mechanism 20 is adjusted, and different processing requirements are met.

Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.

Claims (6)

1. The utility model provides a machining center revolving stage transmission, includes dividing table mechanism (20), its characterized in that still includes frame (11), frame (11) include the bottom plate and are located the riser of bottom plate both sides respectively, are equipped with horizontal lead screw (31) between two risers, are equipped with in the riser of one side wherein be used for the drive lead screw (31) pivoted motor (30), be equipped with on lead screw (31) and be used for driving nut (50) of dividing table mechanism (20) coaxial swing and translation, nut (50) both ends seted up respectively with coaxial annular (51) of lead screw (31), dividing table mechanism (20) with nut (50) link firmly, be equipped with spout (40) on frame (11), be equipped with the stop gear who is used for injecing nut (50) action on spout (40).

2. A machining center turret transmission according to claim 1, characterized in that said nut (50) is threaded with said lead screw (31).

3. The transmission device of a machining center turntable according to claim 1, wherein the limiting mechanism comprises a sliding block (41), an electric telescopic rod (42), a movable block (43), a locking groove (44) and a locking piece (45), the sliding block (41) is slidably connected with the sliding groove (40), the electric telescopic rod (42) is fixedly connected with the upper end of the sliding block (41), the movable block (43) is fixedly connected with the upper end of the electric telescopic rod (42), the two locking pieces (45) are fixedly connected with the movable block (43) and respectively extend into the two annular grooves (51), the two opposite ends of the locking piece (45) are slidably supported against the bottom surfaces of the annular grooves (51), the locking groove (44) is arranged on the machine base (11), and the lower end of the movable block (43) extends into the locking groove (44).

4. A machining center turntable transmission according to claim 3, characterized in that the lower end surface of the movable block (43) is provided with a tooth shape, the bottom surface of the locking groove (44) is provided with a corresponding tooth shape, and the movable block (43) is locked with the locking groove (44) when the lower end surface of the movable block (43) abuts against the bottom surface of the locking groove (44).

5. A transmission device for a turntable of a machining center as claimed in claim 3, wherein the locking piece (45) has a toothed upper end surface, the circumferential wall of the annular groove (51) on the side close to the screw rod (31) has a corresponding toothed shape, and the locking piece (45) is locked with the annular groove (51) when the toothed shape of the upper end surface of the locking piece (45) is against the toothed shape of the circumferential wall of the annular groove (51).

6. A machining center turret transmission according to any of claims 3-5, characterized in that said runner (40) is parallel to said lead screw (31) and said locking groove (44) is parallel to said lead screw (31).

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