CN209272581U - A kind of handpiece structure of high-speed milling machine - Google Patents

Abstract

The utility model discloses a kind of handpiece structures of high-speed milling machine, third transfer mechanism, spindle box and head are installed on saddle, head and spindle box can move back and forth under the control of third transfer mechanism along Z-direction, and the balance cylinder for controlling head balance is provided on spindle box；The top two sides of spindle box are symmetrically arranged with connector, and connector is connect by balancing pole with balance cylinder, and balancing pole one end is fixedly connected with balance cylinder, and the other end is flexibly connected with connector.The handpiece structure of the milling machine of the utility model realizes the balance of head by balance cylinder and balancing pole, so that it is guaranteed that balance of the milling cutter under high-speed rotation.Balance cylinder can give the power of one, milling cutter undertaking, can give upward active force, can also give downward active force, so that it is guaranteed that the balance of entire handpiece structure is high.

Description

A kind of handpiece structure of high-speed milling machine

Technical field

The utility model relates to a kind of handpiece structures of high-speed milling machine.

Background technique

Milling machine refers mainly to the lathe processed with milling cutter to a variety of surfaces of workpiece.Usual milling cutter is transported based on rotary motion Dynamic, the movement of workpiece and milling cutter is feed motion.It can process plane, groove, can also process various curved surfaces, gear etc.. Milling machine is the lathe for carrying out Milling Process to workpiece with milling cutter.Milling machine is except energy milling plane, groove, the gear teeth, screw thread and splined shaft Outside, moreover it is possible to process more complicated type face, efficiency is used widely, simply compared with planer height in machine-building and repairing department For, milling machine can to workpiece carry out milling, drilling and Boring lathe, and the milling cutter of existing milling machine high speed turn How to guarantee that its balance quality then directly affects the precision of workpieces processing under dynamic.

Utility model content

The utility model for overcome the deficiencies in the prior art, provides a kind of head knot of the good high-speed milling machine of balance quality Structure.

To achieve the goals above, the utility model uses a kind of following technical scheme: handpiece structure of high-speed milling machine, sliding Third transfer mechanism, spindle box and head are installed, head and spindle box can be in the control lower edges of third transfer mechanism on saddle Z-direction move back and forth, be provided on spindle box for control head balance balance cylinder；The top two sides pair of spindle box Title is provided with connector, and connector is connect by balancing pole with balance cylinder, and balancing pole one end is fixedly connected with balance cylinder, separately One end is flexibly connected with connector.

Further, balance weight is also arranged on balancing pole, balancing pole can move back on balance weight along Z-direction Dynamic, bottom surface and the saddle of balance weight offset.

Further, connector is zigzag, and the side close to spindle box is provided with strengthening version, the side far from spindle box It is provided with anticollision inclined-plane.

Further, the upper surface of balance weight is provided with stair-stepping boss, and balancing pole is pierced by from the boss.

Further, connecting column is provided on connector, the end of balancing pole is provided with connection ring, connecting column and connection ring It is flexibly connected, is provided with the bulge loop that can be offseted with boss top surface below connection ring.

Further, hollow out inside spindle box, outer surface is provided with windowing.

Further, third transfer mechanism includes third driving motor and Z axis screw rod.

In conclusion the handpiece structure of the milling machine of the utility model realizes the flat of head by balance cylinder and balancing pole Weighing apparatus, so that it is guaranteed that balance of the milling cutter under high-speed rotation.Balance cylinder can give one, milling cutter undertaking power, can give to On active force, downward active force can be also given, so that it is guaranteed that the balance of entire handpiece structure is high.

Detailed description of the invention

Fig. 1 is the milling machine complete machine structure schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of the utility model.

Fig. 3 is structure enlargement diagram at the A of the utility model.

Specific embodiment

In order to make those skilled in the art better understand the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, the technical solutions in the embodiments of the present invention are clearly and completely described.

Embodiment 1:

As shown in Figure 1-3, a kind of handpiece structure of high-speed milling machine, third transfer mechanism 3, spindle box are installed on saddle 9 52 and head 51, head 51 and spindle box 52 can move back and forth under the control of third transfer mechanism 3 along Z-direction, it is main The balance cylinder 71 for controlling the balance of head 51 and the Z axis linear guides for controlling the guiding of head 51 are provided on axle box 52 83.Since head 51 is mounted on spindle box 52, head 51 can rotate under the drive of rotating electric machine 57, and past on head 51 Toward milling cutter is equipped with, usual process component is all the parts machining processed by the rotation of milling cutter to generation, and is being processed Milling cutter high-speed rotation during this, spindle box 52 can then bear biggish reaction force, and part processing needs the balance of head Performance requirement is high, therefore the present embodiment devises duplicate protection for equilibrium problem.The first protection is by balance cylinder 71 As soon as can give spindle box 52 undertaking power, can give spindle box 52 upward active force, can also give spindle box 52 to Under active force, the left-right balance problem of spindle box 52 can be adjusted according to the actual situation.And second protects again, is z axis Guide rail 83, Z axis linear guides 83 mainly play guiding role power to head 51, especially because third transfer mechanism 3 includes Third driving motor 31 and Z axis screw rod 32, and be actually a kind of to be changed into the rotary motion of motor by screw rod transmission The straight reciprocating motion of push rod, motor drive a pair of of feed screw nut, the rotary motion of motor are become straight after The gear deceleration Line movement completes putter action using motor forward/backward rotation, and a pair of of feed screw nut cooperates its required precision higher, it is desirable that screw rod It is on same straight line with the central point of nut, could accurately guarantee that it is doing always straight reciprocating motion, so that it is guaranteed that Head 51 is also doing always straight reciprocating motion, in order to guarantee that the central point of screw rod and nut is on same straight line, z axis Property guide rail 83 is it is ensured that its steering capability.

The top two sides of spindle box 52 are symmetrically arranged with the connector 53 of zigzag, and connector 53 is by balancing pole 54 and puts down The cylinder 71 that weighs connects, and 54 one end of balancing pole is fixedly connected with balance cylinder 71, and the other end is flexibly connected with connector 53, that is, Connecting column is provided on connector 53, the end of balancing pole 54 is provided with connection ring 56, and connecting column and connection ring 56 are flexibly connected, Connection ring 56 can be rotated centered on connecting column, that is, balancing pole 54 can also be rotated centered on connecting column.On balancing pole 54 It is also arranged with balance weight 55, balancing pole 54 can move back and forth on balance weight 55 along Z-direction, the bottom surface of balance weight 55 and cunning Saddle 9 offsets, and balance weight 55 can guarantee that Impact direction when balance cylinder 71 pushes balance weight 55 to move is along Z-direction. Preferably, the upper surface of balance weight 55 is provided with stair-stepping boss 551, balancing pole 54 is pierced by from the boss 551, connection The lower section of ring 56 is provided with the bulge loop 552 that can be offseted with 551 top surface of boss, and the design of boss 551 increases balancing pole 54 and puts down The contact area of weighing apparatus block 55, preferably guarantees the movement under force direction of balancing pole 54.Connector 53 is zigzag, close to spindle box 52 side is provided with strengthening version 521, and the side far from spindle box 52 is provided with anticollision inclined-plane 522, and strengthening version 521 is for reinforcing The firmness of connector 53, so that connector 53 is able to bear the effect for the power that bigger balance cylinder 71 generates, and anticollision is oblique Face 522 can then cooperate to control the maximum angle that balancing pole 54 is able to rotate with balance weight 55.

Since a pair of of feed screw nut of third transfer mechanism 3 cooperates its required precision higher, balance cylinder 71 and z axis Guide rail 83 plays the role of the balance and guiding of duplicate protection, it is ensured that the accuracy of microfeed and the precision of processing.Main shaft The two sides of case 52 are provided with balancing pole 54 and balance cylinder 71 for controlling the balance of head 51, and the two sides of spindle box 52 are set in pairs It is equipped with Z axis linear guides 83 and the two Z axis linear guides 83 and two balancing poles 54 is on same perpendicular, can to put down Weighing apparatus cylinder 71 and Z axis linear guides 83 play the role of the balance and guiding of maximum duplicate protection.Spindle box 52 Inner surface has also been arranged in pairs Z axis linear guides 83, and the inner surface of spindle box 52 refers to mutually hanging down with the two sides of spindle box 52 A face straight and inside the saddle 9, is provided on saddle 9 and the mutually matched Z axis of these two pair Z axis linear guides 83 cunning Slot.For the ease of observing height relationships of the spindle box 52 with respect to saddle 9 or increasing its flexibility, set on Z axis linear guides 83 It is equipped with evenly spaced oilhole 831.Lubricating oil can be added in oilhole 831, oilhole 831 passes through silica gel lid interference fit seal oil Hole, and lubricating oil may make Z axis linear guides 83 and the sliding of Z axis sliding slot more flexible.

The side of Z axis linear guides 83 is provided with recess portion, and protrusion is provided on Z axis sliding slot, and protrusion can be slided along recess portion, To further guarantee the stabilization of its steering capability.Due to the rotation of milling cutter in process spindle box 52 can be generated compared with Therefore big reaction force has higher requirement for the installation of head 51 and rotating electric machine 57.In order to reduce spindle box 52 Weight, 52 inside hollow out of spindle box, head 51 and rotating electric machine 57 are fixedly installed in inside spindle box 52, and spindle box 52 Outer surface (face i.e. corresponding with 51 inner surface of spindle box) be provided with windowing 58, for increase by 52 firmness of spindle box, The side of spindle box 52 is provided with reinforcing rib.

Embodiment 2:

Embodiment 2 the difference from embodiment 1 is that: head 51 and rotating electric machine 57 can be under the controls of lifting device in main shaft Moved up and down in case 52, it is so namely realize in the Z-axis direction there are two can up and down adjustment device, and two groups can The device of up and down adjustment can satisfy the process requirements of different accuracy, that is, spindle box 52 can be controlled in third transfer mechanism 3 Under move up and down, to drive 51 up and down adjustment of head, in addition, head 51 itself can also move up and down in spindle box 52, when So no matter when milling cutter mounted on the nose has the surface for exposing spindle box 52.When the required precision of the workpiece of processing is smaller When, it is only necessary to adjust position of the head 51 relative to spindle box 52, when require processing workpiece required precision compared with Height can adjust the position of spindle box 52 by screw rod then to ensure the accurate fixed of precision.

In addition, being provided with windowing 58 on the outer surface of spindle box 52, windowing 58 includes access panel 581 and gear window 582, inspection The area for repairing window 581 is greater than the area of gear window 582；Gear window 582 can be used for the maintenance to head 51 and rotating electric machine 57, and Gear window 582 can then observe the height that head 51 is moved relative to spindle box 52.

Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts The range of the utility model protection all should belong in every other embodiment.

Claims (7)

1. a kind of handpiece structure of high-speed milling machine, it is characterised in that: be equipped with third transfer mechanism (3), spindle box on saddle (9) (52) can come under the control of third transfer mechanism (3) along Z-direction with head (51), head (51) and spindle box (52) Return is dynamic, and the balance cylinder (71) for controlling head (51) balance is provided on spindle box (52)；The top of spindle box (52) Two sides are symmetrically arranged with connector (53), and connector (53) is connect by balancing pole (54) with balance cylinder (71), balancing pole (54) one end is fixedly connected with balance cylinder (71), and the other end is flexibly connected with connector (53).

2. a kind of handpiece structure of high-speed milling machine according to claim 1, it is characterised in that: on the balancing pole (54) also It is arranged with balance weight (55), balancing pole (54) can move back and forth on balance weight (55) along Z-direction, the bottom of balance weight (55) Face offsets with saddle (9).

3. a kind of handpiece structure of high-speed milling machine according to claim 1, it is characterised in that: the connector (53) is Z Font, the side close to spindle box (52) are provided with strengthening version (521), and the side far from spindle box (52) is provided with anticollision inclined-plane (522).

4. a kind of handpiece structure of high-speed milling machine according to claim 2, it is characterised in that: the balance weight (55) it is upper Surface is provided with stair-stepping boss (551), and balancing pole (54) is pierced by from the boss (551).

5. a kind of handpiece structure of high-speed milling machine according to claim 1, it is characterised in that: set on the connector (53) It is equipped with connecting column, the end of balancing pole (54) is provided with connection ring (56), and connecting column and connection ring (56) are flexibly connected, connection ring (56) bulge loop (552) that can be offseted with boss (551) top surface is provided with below.

6. a kind of handpiece structure of high-speed milling machine according to claim 1, it is characterised in that: the spindle box (52) is internal Hollow out, outer surface are provided with windowing (58).

7. a kind of handpiece structure of high-speed milling machine according to claim 1, it is characterised in that: the third transfer mechanism It (3) include third driving motor (31) and Z axis screw rod (32).