阅读说明：本技术 一种带刹车功能的动力刀塔 (A kind of power cutter tower of strap brake function ) 是由 林坚勇 于 2019-09-04 设计创作，主要内容包括：本发明公开了一种带刹车功能的动力刀塔,涉及刀塔技术领域,其技术方案要点是：包括机座,机座滑动设置有刀塔本体,刀塔本体上设置有刀盘,机座内转动设置有丝杆,丝杆由设置于机座的伺服电机驱动转动；刀塔本体上固定有刹车杆,机座上固定有块体,块体内滑动设置有刹车组件,块体内设有液压油腔,刹车组件能通过滑动压紧于刹车杆的外侧壁。本动力刀塔通过刹车组件与刹车杆的配合,与伺服电机自带的刹车功能同时作用,为刀塔本体起到良好的刹停效果。即使刀塔本体的重量较大、刀具加工时产生反作用力,刀塔本体也不会在竖直方向上产生自发移动,提高本动力刀塔的工作稳定性。块体和刹车组件的拆装、块体与刹车杆的装配均较为方便。(The invention discloses a kind of power cutter towers of strap brake function, it is related to knife tower technology field, its key points of the technical solution are that: including base, base sliding is provided with knife tower ontology, cutterhead is provided on knife tower ontology, rotation is provided with screw rod in base, and screw rod drives rotation by the servo motor for being set to base；It is fixed with brake lever on knife tower ontology, block is fixed on base, sliding is provided with brake assemblies in block, and hydraulic fluid chamber is equipped in block, and brake assemblies can be pressed in the lateral wall of brake lever by sliding.This power cutter tower passes through the cooperation of brake assemblies and brake lever, and the brake function carried with servo motor acts on simultaneously, plays good brake for knife tower ontology and stops effect.Even if the weight of knife tower ontology is larger, tool sharpening when generate reaction force, knife tower ontology will not generate spontaneous movement in the vertical direction, improve the job stability of this power cutter tower.The assembly of the dismounting of block and brake assemblies, block and brake lever is more convenient.)

1. a kind of power cutter tower of strap brake function, including base (1), the base (1) is slided be provided with knife along the vertical direction Tower ontology (2) is provided with cutterhead (21) on the knife tower ontology (2), and rotation is provided with screw rod (11), institute in the base (1) State the glide direction axially along knife tower ontology (2) of screw rod (11), the screw rod (11) pass through knife tower ontology (2) and with knife tower sheet Body (2) is threadedly coupled, and the screw rod (11) drives rotation by the servo motor (12) for being set to base (1)；It is characterized in that:

It is fixed with brake lever (22) on the knife tower ontology (2), the length direction of the brake lever (22) and the axis of screw rod (11) It to parallel, is fixed with block (3) on the base (1), sliding is provided with brake assemblies (4), the block in the block (3) (3) it is equipped with the sliding eye (31) passed through for brake lever (22) in, is equipped with hydraulic fluid chamber (32) in the block (3), the block (3) outer wall is equipped with the oil-collecting hole (34) being connected to hydraulic fluid chamber (32), and the brake assemblies (4) form hydraulic fluid chamber (32) Cavity wall, the brake assemblies (4) are slidingly sealed with block (3), and the oil-collecting hole (34) is for being connected to hydraulic pump (5), the brake Vehicle component (4) can be pressed in the lateral wall of brake lever (22) by sliding.

2. the power cutter tower of a kind of strap brake function according to claim 1, it is characterized in that: the brake assemblies (4) wrap Include drive block (41), the abutting block (42) for contacting brake lever (22) being slidingly sealed with block (3), the abutting block (42) Equipped with the abutting slot (421) contacted for brake lever (22) outer wall, the abutting slot (421) can be connect with brake lever (22) outer wall with face The form of touching offsets.

3. a kind of power cutter tower of strap brake function according to claim 2, it is characterized in that: the brake assemblies (4) Quantity is two, and two brake assemblies (4) are located at the radially opposite sides of brake lever (22).

4. the power cutter tower of a kind of strap brake function according to claim 3, it is characterized in that: two abutting blocks (42) Between be equipped with guide rod (43), described abut block (42) are equipped with the pilot hole (422) that penetrates and be slidably connected for guide rod (43), institute It states pilot hole (422) and is located at abutting slot (421) outside, two abutting blocks (42) are established by guide rod (43) and are slidably connected.

5. the power cutter tower of a kind of strap brake function according to claim 1, it is characterized in that: the block (3) includes two A separable sub-block, two sub-blocks are bolted to be formed block (3), and two sub-blocks divide equally the hole wall of sliding eye (31) For two parts.

6. the power cutter tower of a kind of strap brake function according to claim 1, it is characterized in that: the screw rod (11) is coaxially solid Surely there is columned point of oily section (6), be arranged with oil distributing ring (7) outside described point of oily section (6), the oil distributing ring (7) and base (1) are solid It is fixed, there is spacing, the oily section (6) of oil distributing ring (7) direction point between the inner wall of the oil distributing ring (7) and the outer wall of point oily section (6) Fixed there are two sealing block (71), and two sealing blocks (71) are along a point circumferentially-spaced distribution for oily section (6), the sealing block (71) and an outer wall sliding contact for point oily section (6), the sealing block (71) will divide the space between oil section (6) and oil distributing ring (7) point Be divided into oil suction chamber (72) and oil back chamber (73), the oil-collecting hole (34), hydraulic pump (5) oil outlet be respectively communicated in oil suction chamber (72), the oil back chamber (73) passes through pipeline connection to fuel tank (8)；When described point of oily section (6) and sealing block (71) are opposing stationary When, static seal is established between sealing block (71) and point oily section (6), it is described when described point of oily section (6) opposing seal block (71) rotates Hydraulic oil in oil suction chamber (72) can enter oil back chamber (73) through the gap of a point oily section (6), sealing block (71).

7. a kind of power cutter tower of strap brake function according to claim 6, it is characterized in that: described point of oily section (6) is outer Wall is provided with multiple gear teeth (61), and the gear teeth (61) are uniformly distributed along a point circumferential direction for oily section (6), and described point of oily section (6) passes through The outer edge of the gear teeth (61) is contacted with sealing block (71)；The width of the sealing block (71) is arranged are as follows: when described point of oily section (6) phase When to sealing block (71) rotation, at least contacted there are two the gear teeth (61) with same sealing block (71).

8. a kind of power cutter tower of strap brake function according to claim 6, it is characterized in that: the hydraulic pump (5) into Hydraulic fluid port is connected to the interior bottom of fuel tank (8).

Technical field

The present invention relates to knife tower technology field, in particular to a kind of power cutter tower of strap brake function.

Background technique

Power cutter tower is the automatic tool changer of numerically-controlled machine tool and the general name of cutter driving device, and power cutter tower is usually used in adding Work center, and be one of the core component of machining center.Multiple cutters can be circumferentially installed along cutterhead on power cutter tower, cutter is by journey Sequence control can be realized tool changing, feed, withdrawing, rotary cutting process.

Existing application publication number is that the Chinese invention patent application of CN108746687A discloses a kind of high stability power Knife tower, including pedestal, pedestal are provided through carrier chamber, further include the tailstock for being arranged in carrier chamber, are fixed on tailstock end knife Disk and be fixed on tailstock or with the integrally formed lifter plate of tailstock；Lifter plate is fixed at least two backwards to one end of cutterhead Sliding block, one end of pedestal are fixed with the sliding rail of at least two with sliding block cooperation, and it is prominent that pedestal is located at the end between two sliding blocks It is provided with extension, the screw rod that setting drives tailstock to move along sliding rail is run through on extension, is provided on pedestal and screw rod is driven to turn The first dynamic driving mechanism.

The cutterhead of the power cutter tower can be slided along Y-axis (i.e. vertical direction), and the sliding of the direction is driven by servo motor Dynamic pulley rotation, belt pulley drive screw rod rotation, and the mode that screw rod is threadedly coupled with nut realizes movement.

After prior art among the above has the following deficiencies: that cutterhead moves in place along the vertical direction, even if driving skin The servo motor of belt wheel rotation has brake function, and the weight of palette knife consolidation body is larger, and when tool sharpening can also generate reaction Power, the included brake weight of servo motor are limited, it is difficult to which cutterhead is reliably fixed Mr. Yu's height.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of power cutter tower of strap brake function, Knife tower ontology can be reliably fixed Mr. Yu's height.

Above-mentioned technical purpose of the invention has the technical scheme that a kind of power of strap brake function Knife tower, including base, the base slides along the vertical direction is provided with knife tower ontology, is provided with cutterhead on the knife tower ontology, Rotation is provided with screw rod, the glide direction axially along knife tower ontology of the screw rod in the base, and the screw rod passes through knife tower Ontology is simultaneously threadedly coupled with knife tower ontology, and the screw rod drives rotation by the servo motor for being set to base；

It is fixed with brake lever on the knife tower ontology, the length direction of the brake lever and axial parallel, the base of screw rod On be fixed with block, sliding is provided with brake assemblies in the block, be equipped with the sliding eye passed through for brake lever in the block, Hydraulic fluid chamber is equipped in the block, the outer wall of the block is equipped with the oil-collecting hole being connected to hydraulic fluid chamber, the brake assemblies The cavity wall of hydraulic fluid chamber is formed, the brake assemblies are slidingly sealed with block, and the oil-collecting hole is for being connected to hydraulic pump, the brake Vehicle component can be pressed in the lateral wall of brake lever by sliding.

Through the above technical solutions, the start and stop of servo motor are controlled by control system, start and stop, the pressure release of hydraulic pump It is controlled by control system.When servo motor operating, servo motor drives knife tower ontology in the vertical direction by screw rod Sliding, realizes the lifting of cutterhead.Control system makes hydraulic fluid chamber by the operating status of control hydraulic pump and its solenoid valve at this time In pressure release state, then abutting power is not generated between brake assemblies and brake lever, brake lever can be moved together with knife tower ontology.When watching When taking motor stalls, system controls hydraulic pump and its electromagnetism valve events, makes to establish oil pressure in hydraulic fluid chamber, then oil pressure drives Brake assemblies are pushed against in brake lever outer wall；Abut and generate biggish stiction between block and brake lever, limitation brake lever relative to Block is mobile.Since brake lever is fixed on knife tower ontology, then knife tower ontology and base are in relative static conditions.

The cooperation of brake assemblies and brake lever, the brake function carried with servo motor act on simultaneously, are knife tower main body Stop effect to good brake.Even if the weight of knife tower ontology is larger, tool sharpening when generate reaction force, knife tower ontology also can By fixed Mr. Yu's height, the job stability of this power cutter tower is improved.

Preferably, the brake assemblies include the drive block being slidingly sealed with block, the abutting block for contacting brake lever, The block that abuts is equipped with the abutting slot contacted for brake lever outer wall, and the abutting slot can be with brake lever outer wall in the form of face contact It offsets.

Offseted by abutting slot with brake lever outer wall through the above technical solutions, abutting block, brake lever with abut groove groove wall Contact area it is larger, preferable stop can be generated when abutting block and compressing brake lever and stops effect.

Preferably, the quantity of the brake assemblies is two, and two brake assemblies are located at the radial direction of brake lever Two sides.

Through the above technical solutions, two abut block cooperation and clamp the outer wall of brake lever, brake when brake assemblies act The stress of bar is steady, and it is more preferable that brake stops effect.

Preferably, it is equipped with guide rod between two abutting blocks, the abuttings block for guide rod equipped with penetrating and the company of sliding The pilot hole connect, the pilot hole, which is located at, to abut outside slot, and two abutting blocks are slidably connected by guide rod foundation.

Through the above technical solutions, two abutting blocks are slidably connected by guide rod foundation, guide rod is the cunning for abutting block It is dynamic that guiding role is provided, prevent two abutting blocks from generating dislocation in sliding.

Preferably, the block includes two separable sub-blocks, and two sub-blocks are bolted to form block, and two The hole wall of sliding eye is divided into two parts by sub-block.

Through the above technical solutions, two sub-blocks are assemblied in outside brake lever in such a way that left and right fastens.When block is split After two sub-blocks, personnel can easily dismount brake assemblies in block.

Preferably, the screw rod is coaxially fixed with columned point of oily section, is arranged with oil distributing ring outside described point of oily section, described Oil distributing ring is fixed with base, has spacing, the oil distributing ring direction point oil between the inner wall of the oil distributing ring and the outer wall of point oily section Section is fixed, and there are two sealing blocks, and two sealing blocks are along a point circumferentially-spaced distribution for oily section, the sealing block and point oily section Outer wall sliding contact, the sealing block will divide the space between oily section and oil distributing ring to be divided into oil suction chamber and oil back chamber, described to connect oil Mouthful, the oil outlet of hydraulic pump be respectively communicated in oil suction chamber, the oil back chamber passes through pipeline connection to fuel tank；When described point of oily section with When sealing block is opposing stationary, static seal is established between sealing block and point oily section, it is described when described point of oily section opposing seal block rotation Hydraulic oil in oil suction chamber can enter oil back chamber through the gap of a point oily section, sealing block.

Through the above technical solutions, sealing block and a point oily section establish static seal when point oily section and opposing stationary sealing block, Under this state the hydraulic oil in oil suction chamber will not enter oil back chamber, the hydraulic oil that hydraulic pump works are pumped can successively through oil suction chamber, Oil-collecting hole enters hydraulic fluid chamber, and establishes oil pressure, clamping of the brake assemblies to brake lever is realized, to realize the brake of knife tower ontology Stop.When a point oily section opposing seal block rotates, the hydraulic oil in oil suction chamber can enter oil return through the gap of a point oily section, sealing block Chamber, the then hydraulic fluid chamber being connected to oil suction chamber can not also establish oil pressure, and brake lever can generate sliding in block.This power cutter tower Brake assemblies clamp the movement of brake lever when brake assemblies releasing of brake bar, screw rod stalling when can realize screw rod rotation automatically, Make hydraulic pump without frequent start-stop, need not also increase control program.

Preferably, the outer wall of described point of oily section is provided with multiple gear teeth, and the gear teeth are uniformly distributed along a point circumferential direction for oily section, Described point of oily section is contacted by the outer edge of the gear teeth with sealing block；The width of the sealing block is arranged are as follows: when described point of oily section phase When to sealing block rotation, at least contacted there are two the gear teeth with same sealing block.

Through the above technical solutions, the gap for taking turns between cog can also play transport liquid when a point oily section opposing seal block rotates The effect of pressure oil is further reduced the hydraulic oil of oil suction chamber, it is ensured that oil suction chamber can not establish oil pressure, brake lever and can produce in block Raw sliding.When the width of sealing block can ensure that a point oily section goes to any angle, static seal can be established between the gear teeth and sealing block.

Preferably, the oil inlet of the hydraulic pump is connected to the interior bottom of fuel tank.

Through the above technical solutions, the hydraulic oil that hydraulic pump is pumped comes from fuel tank, excessive hydraulic oil is automatic in oil back chamber Fuel tank is returned by the road, and hydraulic oil forms circulation.

In conclusion the present invention having the beneficial effect that in contrast to the prior art

1, Mr. Yu's height is reliably fixed by setting brake lever and brake assemblies, this physical efficiency of knife tower；

2, the assembly of the dismounting of block and brake assemblies, block and brake lever is more convenient；

3, the movement of brake assemblies can be realized by the oily section of setting point and oil distributing ring, this power cutter tower automatically.

Detailed description of the invention

Fig. 1 is a kind of overall diagram of the power cutter tower of strap brake function of embodiment one；

Fig. 2 be embodiment one partial exploded view, mainly protrude brake lever, block, brake assemblies fit structure；

Fig. 3 is the cross-sectional view of the block of embodiment one, the structure of main prominent hydraulic fluid chamber；

Fig. 4 is the Local map of the power cutter tower of embodiment two, the vertical profile structure of main prominent oil distributing ring；

Fig. 5 is the partial sectional view of embodiment two, mainly protrudes the cross-sectional structure of oil distributing ring, point oily section.

In figure, 1, base；2, knife tower ontology；21, cutterhead；11, screw rod；12, servo motor；22, brake lever；3, block； 31, sliding eye；4, brake assemblies；41, drive block；42, block is abutted；421, slot is abutted；32, hydraulic fluid chamber；33, hydraulic oil duct； 34, oil-collecting hole；5, hydraulic pump；43, guide rod；422, pilot hole；6, divide oily section；7, oil distributing ring；71, sealing block；61, the gear teeth； 72, oil suction chamber；73, oil back chamber；74, oil seal ring；8, fuel tank.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.