阅读说明：本技术 基于丝杆传动机构的驱动电机内置式伺服展刀头 (Driving motor built-in servo tool expanding head based on screw rod transmission mechanism ) 是由 罗华荣 徐小兵 于 2021-08-13 设计创作，主要内容包括：本发明属于加工设备技术领域,尤其涉及一种基于丝杆传动机构的驱动电机内置式伺服展刀头。本发明针对现有技术中展刀头的动力来源大都来自于外界,大都通过拉杆来带动,导致展刀头整体结构不够紧凑,可适用的场景受到限制的问题,提供一种基于丝杆传动机构的驱动电机内置式伺服展刀头,包括展刀主体和滑动连接在展刀主体一端的刀架滑块,所述展刀主体远离刀架滑块的一端固定连接有安装板,还包括动力源装置,所述动力源装置一端与刀架滑块驱动连接,且动力源装置位于展刀主体内部。本发明刀架滑块的动力来源于内置于展刀主体内的动力源装置,无需外界动力输入,使得整体结构更加紧凑,可适用的场景更加广阔。(The invention belongs to the technical field of processing equipment, and particularly relates to a screw transmission mechanism-based built-in servo tool bit with a driving motor. The invention provides a screw transmission mechanism-based servo exhibition tool bit with a built-in driving motor, aiming at the problems that in the prior art, power sources of the exhibition tool bit are mostly from the outside and are mostly driven by a pull rod, so that the overall structure of the exhibition tool bit is not compact enough and applicable scenes are limited. The power of the tool rest sliding block is derived from a power source device arranged in the tool expanding main body, and external power input is not needed, so that the whole structure is more compact, and the applicable scene is wider.)

1. The utility model provides a built-in servo exhibition tool bit of driving motor based on lead screw drive mechanism, includes exhibition sword main part (1) and sliding connection at knife rest slider (2) of exhibition sword main part (1) one end, the one end fixedly connected with mounting panel (3) of knife rest slider (2), its characterized in that are kept away from in exhibition sword main part (1): still include power supply device (4), power supply device (4) one end is connected with knife rest slider (2) drive, and power supply device (4) are located inside exhibition sword main part (1).

2. The screw drive based drive motor built-in servo screwdriver head of claim 1, wherein: the power source device (4) comprises a driving motor (41) located inside the spreader main body (1), a driving gear (42) is fixedly connected to an output shaft of the driving motor (41), a first driven gear (44) fixedly connected to the end of a sliding block screw rod (43) is meshed with the driving gear (42), a sliding block sliding sleeve (45) is in threaded connection with the sliding block screw rod (43), and the bottom surface of a tool rest sliding block (2) is fixedly connected to the sliding block sliding sleeve (45).

3. The screw drive based drive motor built-in servo screwdriver head as recited in claim 2, wherein: the slider screw rod (43) is further provided with buffer pads (46) made of flexible materials, and the two buffer pads (46) are arranged on two sides of the slider sliding sleeve (45) respectively.

4. The screw drive based drive motor built-in servo screwdriver head as recited in claim 2, wherein: the driving motor (41) is a servo motor.

5. The screw drive based drive motor built-in servo screwdriver head as recited in claim 2, wherein: power supply unit (4) still include balancing weight lead screw (47) and balancing weight sliding sleeve (48) with balancing weight lead screw (47) threaded connection, the one end fixedly connected with second driven gear (49) of balancing weight lead screw (47), second driven gear (49) mesh mutually with first driven gear (44), still be equipped with balancing weight (5) that are used for balancing knife rest slider (2) slip in-process to lead to the focus to change in exhibition sword main part (1), balancing weight (5) fixed connection is on balancing weight sliding sleeve (48).

6. The screw-drive-mechanism-based drive motor built-in servo screwdriver head as recited in claim 5, wherein: the balancing weight (5) and the tool rest sliding block (2) are respectively positioned at two sides of the power source device (4), and the axial lead of the balancing weight screw rod (47) is parallel to the axial lead of the sliding block screw rod (43).

7. The screw-drive-mechanism-based drive motor built-in servo screwdriver head as recited in claim 5, wherein: the both sides of balancing weight (5) still respectively are equipped with one spring mounting piece (51) at least, spring mounting piece (51) fixed connection is on exhibition sword main part (1), and buffer spring (52) one end fixed connection is on spring mounting piece (51), and the other end is pressed and is established on balancing weight (5).

8. The screw drive based drive motor built-in servo screwdriver head as recited in claim 2, wherein: the tool rest device is characterized by further comprising a synchronous lubricating component (8) which can slide synchronously with the tool rest sliding block (2) in the sliding process of the tool rest sliding block (2), wherein one end of the synchronous lubricating component (8) extends into the tool rest sliding block (2), and the other end of the synchronous lubricating component extends to the contact surface of the sliding block screw rod (43) and the sliding block sliding sleeve (45).

9. The screw-drive-based drive motor built-in servo screwdriver head of claim 8, wherein: synchronous lubrication assembly (8) is including setting up the lubrication channel in knife rest slider (2), lubrication channel one end is linked together with oil pipeline (81), and the other end intercommunication has dodges recess (82), dodge recess (82) and set up in knife rest slider (2) side and sunken to knife rest slider (2) inside, end cap (83) can be dismantled and connect in lubrication channel, and the tip holding of end cap (83) is in dodging recess (82), oil pipeline (81) are kept away from the contact surface of one end intercommunication slider lead screw (43) and slider sliding sleeve (45) of lubrication channel.

10. The screw drive based drive motor built-in servo screwdriver head of claim 1, wherein: exhibition sword main part (1) is gone up still fixedly connected with separation blade (6), direction passageway (7) have between separation blade (6) and exhibition sword main part (1), the one end of knife rest slider (2) extends to in direction passageway (7).

Technical Field

The invention belongs to the technical field of processing equipment, and particularly relates to a screw transmission mechanism-based built-in servo tool bit with a driving motor.

Background

In the machining process, because the special machine tool has a compact structure, some unit module spindles only have axial feeding and do not have radial feeding, when parts needing grooves in inner holes or outer circles are met, the expanding tool bit needs to be used, and therefore the expanding tool bit is widely applied to special metal cutting machine tools. However, most of the power sources of the cutter head in the prior art are from the outside and are driven by the pull rod, so that the whole structure of the cutter head is not compact enough, and the applicable scene is limited.

For example, the chinese invention patent discloses a cutter expanding power head [ application number: 201010129804.3], the invention comprises a processing tool, a tool apron, a slide block, a pull core, a pull rod assembly, a taper handle, a main shaft, a sleeve, a box body, a belt pulley or a synchronous wheel, a rotary oil cylinder assembly, a transmission gland, a first bearing, a belt wheel frame, a second bearing, a connecting plate, a wedge and a slide seat; the rotary oil cylinder assembly, the pull rod assembly and the pull core are fixedly connected into a pull rod assembly through threads, a main shaft outside the pull rod assembly is connected with the pull rod assembly in a sliding pair mode, and the pull rod assembly can move longitudinally along the main shaft; the processing cutter, the cutter holder and the sliding block are fixedly connected into a cutter assembly through threads, and the cutter assembly is connected with the sliding seat through a pressing plate in a sliding pair mode; the sliding seat, the taper handle and the main shaft are fixedly connected through threads; the pull rod assembly and the cutter assembly are connected in a sliding pair mode through a wedge iron in the sliding block; the transmission gland is arranged outside the main shaft and is connected with the main shaft through a spline pair; the belt wheel is arranged outside the transmission gland and is fixedly connected with the transmission gland through threads; the belt wheel frame and the belt wheel form a rotary motion pair through a bearing; the belt wheel frame is fixed on the box body outside the belt wheel frame through threads; the feeding oil cylinder assembly is fixedly connected with the connecting plate and the sleeve through threads; the main shaft and the sleeve form a rotary pair through a bearing II; the pull rod assembly, the cutter assembly, the main shaft and the sleeve form a longitudinal feeding assembly, and the longitudinal feeding assembly is connected with the box body through a sliding pair; the longitudinal feeding assembly can slide longitudinally along the box body.

According to the invention, power is input to the processing cutter through the pull rod assembly, so that the power source of the cutter head is mostly from the outside and is mostly driven by the pull rod, and the problems that the whole structure of the cutter head is not compact and the applicable scene is limited are caused.

Disclosure of Invention

The invention aims to solve the problems and provides a built-in servo cutter expanding head based on a screw transmission mechanism and with a more compact structure.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a built-in servo exhibition tool bit of driving motor based on lead screw drive mechanism, includes exhibition sword main part and sliding connection at the knife rest slider of exhibition sword main part one end, the one end fixedly connected with mounting panel of knife rest slider is kept away from to exhibition sword main part still includes power supply unit, power supply unit one end is connected with the drive of knife rest slider, and power supply unit is located inside the exhibition sword main part.

In the servo exhibition tool bit with the built-in driving motor based on the screw rod transmission mechanism, the power source device comprises the driving motor positioned in the exhibition tool main body, a driving gear is fixedly connected to an output shaft of the driving motor, a first driven gear fixedly connected to the end of a slide block screw rod is meshed with the driving gear, a slide block sliding sleeve is in threaded connection with the slide block screw rod, and the bottom surface of a tool rest slide block is fixedly connected to the slide block sliding sleeve.

In the servo tool bit with the built-in driving motor based on the screw rod transmission mechanism, the slide block screw rod is further provided with two cushion pads made of flexible materials, and the two cushion pads are respectively positioned on two sides of the slide block sliding sleeve.

In the above-mentioned servo spreader head with a built-in driving motor based on a screw transmission mechanism, the driving motor is a servo motor.

In the servo exhibition tool bit with the built-in driving motor based on the screw rod transmission mechanism, the power source device further comprises a balancing weight screw rod and a balancing weight sliding sleeve in threaded connection with the balancing weight screw rod, one end of the balancing weight screw rod is fixedly connected with a second driven gear, the second driven gear is meshed with the first driven gear, a balancing weight for balancing the change of the gravity center caused in the sliding process of the tool rest sliding block is further arranged in the exhibition tool main body, and the balancing weight is fixedly connected to the balancing weight sliding sleeve.

In the servo tool expanding head with the built-in driving motor based on the screw rod transmission mechanism, the balancing weight and the tool rest sliding block are respectively positioned at two sides of the power source device, and the axial lead of the balancing weight screw rod is parallel to the axial lead of the sliding block screw rod.

In the servo exhibition tool bit with the built-in driving motor based on the screw rod transmission mechanism, at least one spring installation block is arranged on each of two sides of the balancing weight, the spring installation blocks are fixedly connected to the exhibition tool main body, one end of the buffer spring is fixedly connected to the spring installation block, and the other end of the buffer spring is pressed on the balancing weight.

In the servo cutter head with the built-in driving motor based on the screw rod transmission mechanism, the synchronous lubricating component capable of synchronously sliding with the tool rest sliding block in the sliding process of the tool rest sliding block is further included, one end of the synchronous lubricating component extends into the tool rest sliding block, and the other end of the synchronous lubricating component extends to the contact surface of the sliding block screw rod and the sliding block sliding sleeve.

In the built-in servo tool bit that expands of driving motor based on lead screw drive mechanism, synchronous lubrication assembly is including setting up the lubrication channel in the knife rest slider, lubrication channel one end is linked together with oil pipeline, and the other end intercommunication has dodges the recess, dodge the recess and set up at knife rest slider side and to the inside sunken of knife rest slider, the end cap can be dismantled and connect in lubrication channel, and the tip holding of end cap is dodged in the recess, the oil pipeline keeps away from the contact surface of lubrication channel's one end intercommunication slider lead screw and slider sliding sleeve.

In the servo exhibition tool bit with the built-in driving motor based on the screw rod transmission mechanism, the exhibition tool main body is further fixedly connected with a separation blade, a guide channel is arranged between the separation blade and the exhibition tool main body, and one end of the tool rest sliding block extends into the guide channel.

Compared with the prior art, the invention has the advantages that:

1. the power of the tool rest sliding block is derived from a power source device arranged in the tool expanding main body, and external power input is not needed, so that the whole structure is more compact, and the applicable scene is wider.

2. The balance weight block for balancing the change of the gravity center in the sliding process of the tool rest sliding block is arranged on the other side of the power source device, so that the expanding tool can be suitable for high rotating speed.

3. The invention can be suitable for installing and using knife rests of different models by adjusting the weight of the balancing weight, and the universal matching capability is improved.

4. The synchronous lubricating component can synchronously slide along with the tool rest sliding block and the sliding sleeve in the using process, so that the lubricating effect is ensured, and the problem of lubricating oil leakage is better prevented.

5. The invention has higher precision, the built-in planetary reducer and the servo motor of the cutter expanding head are used for driving, and the accumulated error of mechanical transmission is reduced.

Drawings

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

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic structural view of a portion of the structure of the present invention;

FIG. 5 is a schematic illustration of the power source arrangement;

in the figure: the automatic spreading and cutting device comprises a spreading cutter main body 1, a cutter rest sliding block 2, a mounting plate 3, a power source device 4, a balancing weight 5, a blocking piece 6, a guide channel 7, a synchronous lubricating component 8, a driving motor 41, a driving gear 42, a sliding block screw rod 43, a first driven gear 44, a sliding block sliding sleeve 45, a buffering cushion 46, a balancing weight screw rod 47, a balancing weight sliding sleeve 48, a second driven gear 49, a spring mounting block 51, a buffering spring 52, an oil conveying pipeline 81, an avoiding groove 82 and a plug 83.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the screw rod transmission mechanism-based drive motor built-in servo unfolding tool bit comprises an unfolding tool main body 1, a tool rest sliding block 2 connected to one end of the unfolding tool main body 1 in a sliding mode, a mounting plate 3 fixedly connected to one end, far away from the tool rest sliding block 2, of the unfolding tool main body 1, and a power source device 4, wherein one end of the power source device 4 is connected with the tool rest sliding block 2 in a driving mode, and the power source device 4 is located inside the unfolding tool main body 1.

When the tool rest slide block is used, the power source device 4 is started, the power source device 4 outputs power to the tool rest slide block 2 provided with the tool, so that the tool rest slide block 2 slides relative to the tool expanding main body 1, the position of the tool is changed, and machining is performed. Therefore, the power of the tool rest sliding block 2 comes from the power source device 4 arranged in the tool expanding main body 1, and external power input is not needed, so that the whole structure is more compact, and the applicable scene is wider.

As shown in fig. 5, the power source device 4 includes a driving motor 41 located inside the scalpel main body 1, a driving gear 42 is fixedly connected to an output shaft of the driving motor 41, a first driven gear 44 fixedly connected to an end of a slider screw 43 is engaged with the driving gear 42, a slider sliding sleeve 45 is in threaded connection with the slider screw 43, and a bottom surface of the tool holder slider 2 is fixedly connected to the slider sliding sleeve 45. Wherein, the driving motor 41 can be a servo motor in the prior art to ensure the accuracy of the sliding position of the tool rest sliding block 2.

When the tool rest is used, the driving motor 41 drives the driving gear 42 to rotate, the driving gear 42 drives the first driven gear 44 to drive the slider lead screw 43 to rotate, and the slider sliding sleeve 45 is in threaded connection with the slider lead screw 43, so that the slider sliding sleeve 45 moves along the axial lead direction of the slider lead screw 43 to drive the tool rest slider 2 to slide.

Preferably, the slider screw 43 is further provided with two cushions 46 made of flexible material, and the two cushions 46 are respectively located at two sides of the slider sliding sleeve 45.

Combine shown in fig. 4 and 5, power supply unit 4 still includes balancing weight lead screw 47 and the balancing weight sliding sleeve 48 with balancing weight lead screw 47 threaded connection, the one end fixedly connected with second driven gear 49 of balancing weight lead screw 47, second driven gear 49 meshes with first driven gear 44 mutually, still be equipped with in the exhibition sword main part 1 and be used for balancing the balancing weight 5 that the sliding process of knife rest slider 2 leads to the focus to change, balancing weight 5 fixed connection is on balancing weight sliding sleeve 48.

During the use, first driven gear 44 drives second driven gear 49 to drive balancing weight lead screw 47 and rotate, because balancing weight sliding sleeve 48 and balancing weight lead screw 47 threaded connection, balancing weight sliding sleeve 48 takes place the removal along balancing weight lead screw 47 axial lead direction at this moment, thereby drives balancing weight 5 and slides.

Preferably, the counterweight 5 and the tool rest slide block 2 are respectively positioned at two sides of the power source device 4, and the axial lead of the counterweight screw rod 47 is parallel to the axial lead of the slide block screw rod 43.

According to the invention, the balancing weight 5 for balancing the change of the gravity center in the sliding process of the tool rest sliding block 2 is arranged on the other side of the power source device 4, so that the tool expanding device is suitable for high rotating speed. Simultaneously the weight of accessible adjustment balancing weight 5 to be applicable to the installation of the knife rest of different models and use, the general-purpose ability improves. And the first driven gear 44 used for driving the slider screw rod 43 is meshed with the second driven gear 49 used for driving the balancing weight screw rod 47, so that in the using process, the balancing weight 5 and the tool rest slider 2 move in a reverse constant speed mode, and the gravity center position can be kept unchanged simply and conveniently as long as the balancing weight 5 and the total weight of the tool rest slider 2 with a cutter are controlled to be equal.

As shown in fig. 3, at least one spring mounting block 51 is further disposed on each of two sides of the weight block 5, the spring mounting block 51 is fixedly connected to the spreader main body 1, one end of the buffer spring 52 is fixedly connected to the spring mounting block 51, and the other end is pressed on the weight block 5. Thus, the buffer spring 52 is compressed when the counterweight 5 moves left and right, and the more the offset is, the larger the compression amount is, so as to prevent the counterweight 5 from deviating from the proper area range during the sliding process.

As shown in fig. 4, the synchronous lubricating device further comprises a synchronous lubricating assembly 8 which can synchronously slide with the tool rest slide block 2 in the sliding process of the tool rest slide block 2, wherein one end of the synchronous lubricating assembly 8 extends into the tool rest slide block 2, and the other end of the synchronous lubricating assembly extends to the contact surface of the slide block screw rod 43 and the slide block sliding sleeve 45. The synchronous lubricating component 8 can synchronously slide along with the tool rest sliding block 2 and the sliding block sliding sleeve 45 in the using process, so that the lubricating effect is ensured, and the problem of lubricating oil leakage is better prevented.

Specific speaking, synchronous lubrication assembly 8 is including setting up the lubrication channel in knife rest slider 2, lubrication channel one end is linked together with oil pipeline 81, and the other end intercommunication has dodges recess 82, dodge recess 82 and set up in knife rest slider 2 side and sunken to knife rest slider 2 inside, and the connection can be dismantled in lubrication channel to end cap 83, and end portion holding of end cap 83 is in dodging recess 82, oil pipeline 81 keeps away from the contact surface of one end intercommunication slider lead screw 43 and slider sliding sleeve 45 of lubrication channel.

The synchronous lubricating component 8 can also be applied between the counterweight sliding sleeve 48 and the counterweight 5 to realize lubrication.

As shown in fig. 1, a blocking piece 6 is further fixedly connected to the spreader main body 1, a guide channel 7 is arranged between the blocking piece 6 and the spreader main body 1, and one end of the tool rest sliding block 2 extends into the guide channel 7. The extension section of the tool rest sliding block 2 is matched with the guide channel 7, so that the sliding direction of the tool rest sliding block 2 can be regulated and guided.

The working principle of the invention is as follows: during the use, start driving motor 41, driving motor 41 drive driving gear 42 rotates, and driving gear 42 drives first driven gear 44 to drive slider lead screw 43 and rotate, because slider sliding sleeve 45 and slider lead screw 43 threaded connection, slider sliding sleeve 45 takes place the removal along slider lead screw 43 axial lead direction at this moment, thereby drives knife rest slider 2 and slides, thereby changes the cutter position, processes. Meanwhile, the first driven gear 44 drives the second driven gear 49 to drive the counterweight lead screw 47 to rotate, and the counterweight sliding sleeve 48 is in threaded connection with the counterweight lead screw 47, so that the counterweight sliding sleeve 48 moves along the axial lead direction of the counterweight lead screw 47, and the counterweight 5 is driven to slide to balance the movement of the cutter. Therefore, the power of the tool rest sliding block 2 comes from the power source device 4 arranged in the tool expanding main body 1, and external power input is not needed, so that the whole structure is more compact, and the applicable scene is wider.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the spreader main body 1, the tool rest sliding block 2, the mounting plate 3, the power source device 4, the counterweight 5, the baffle 6, the guide channel 7, the synchronous lubrication assembly 8, the driving motor 41, the driving gear 42, the sliding block screw 43, the first driven gear 44, the sliding block sliding sleeve 45, the buffer pad 46, the counterweight screw 47, the counterweight sliding sleeve 48, the second driven gear 49, the spring mounting block 51, the buffer spring 52, the oil pipeline 81, the avoiding groove 82, the plug 83 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.