CN116214242B

CN116214242B - Turning position changing device, turning position changing method and processing equipment

Info

Publication number: CN116214242B
Application number: CN202310513789.XA
Authority: CN
Inventors: 杨兴发; 杨银; 汪壮; 喻宇福; 文桂林; 周兴旺
Original assignee: Changsha Sugong Technology Co ltd
Current assignee: Changsha Sugong Technology Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-06-30
Anticipated expiration: 2043-05-09
Also published as: CN116214242A

Abstract

The application discloses a turnover displacement device, a turnover displacement method and machining equipment, and relates to the technical field of machining equipment. The overturning position changing device comprises a base, an overturning clamp, a lifting overturning module, a positioning module, a distance measuring sensor and a control module; the lifting turnover module is used for lifting the turnover fixture and driving the turnover fixture to rotate around a first horizontal direction to displace, the peripheral surface of at least one end of the turnover fixture along the first horizontal direction comprises a plurality of positioning planes arranged around the first horizontal direction, each positioning plane is provided with a detachable first positioning flat plate component, and the first positioning flat plate component is provided with a first positioning hole; the positioning module is used for extending into the first positioning hole and forming surface matching with the first positioning flat component; the distance measuring sensors are respectively used for measuring different points on the positioning plane; the control module is used for coordinating the work. The turnover displacement device disclosed by the application is high in machining precision, less in abrasion, long in service life and low in maintenance cost.

Description

Turning position changing device, turning position changing method and processing equipment

Technical Field

The application relates to the technical field of machining equipment, in particular to a turnover displacement device, a turnover displacement method and machining equipment.

Background

In the field of special machine tool processing of large-scale mechanical parts, if the part is processed to have a long span and is distributed at a plurality of different positions at two ends, a reversible workbench or other turning devices are generally needed to realize the position change of a workpiece, so that the machine tool is convenient for processing the workpiece.

The traditional mode needs to be assisted by a crane or a forklift to change the clamping direction of a workpiece so as to realize the processing of different positions. Obviously, the operation efficiency is high, and a great safety hazard exists. If a customized five-axis machining center is adopted to machine large mechanical parts, the structure is complex and the equipment cost is high.

In order to solve the problems, the Chinese patent with the patent application number of CN202220549057.7 and the application date of 2022, 3 and 14 provides a turnover self-positioning structure and a fixture, but in the turnover self-positioning structure, a workpiece is clamped by a clamping cylinder, and the clamping cylinder is driven by a lifting turnover module to drive the workpiece to complete turnover displacement. However, in the actual use process, because the friction wheel is adopted in the turnover mechanism to be in driving fit with the turnover plate on the outer peripheral surface of the clamping cylinder, the larger the rotating angle error of the turnover cylinder is accumulated after the turnover cylinder works for a long time, the automatic positioning is carried out by simply relying on two positioning reference surfaces, the positioning reference surfaces are easily worn during long-term operation, so that the problem of the clamping of the turnover cylinder is caused, the working efficiency is influenced, and the maintenance cost is increased.

Disclosure of Invention

The invention aims to provide a turnover position changing device, a turnover position changing method and processing equipment, which are used for solving the defects in the prior art.

To achieve the above object, in a first aspect, the present application provides a flipping and shifting device, including:

a base;

the overturning clamp is horizontally arranged on the base and used for clamping a horizontally processed workpiece;

the lifting turnover module is arranged on the base and used for lifting the turnover clamp in the vertical direction and driving the turnover clamp to rotate and shift around a first horizontal direction, wherein the peripheral surface of at least one end of the turnover clamp in the first horizontal direction comprises a plurality of positioning planes arranged around the first horizontal direction, each positioning plane is provided with a detachable first positioning flat plate component, and each first positioning flat plate component is provided with a first positioning hole;

the positioning module is detachably arranged on one side of the base corresponding to the positioning plane, and is used for extending into the first positioning hole and being matched with the surface of the first positioning flat component in a surface mode;

the distance measuring sensors are arranged on one side of the base corresponding to the positioning plane at intervals along a second horizontal direction, and are respectively used for measuring different points on the positioning plane facing the base and obtaining distances from the different points on the positioning plane to a preset reference plane; and

The control module is electrically connected with the lifting and overturning module, the positioning module and the ranging sensor respectively, and the control module is configured to coordinate the lifting and overturning module, the positioning module and the ranging sensor.

As a further improvement of the above technical scheme:

with reference to the first aspect, in a possible implementation manner, the outer circumferential surfaces of the two ends of the turnover fixture in the first horizontal direction are provided with a plurality of positioning planes around the first horizontal direction, and each positioning plane is provided with a detachable first positioning flat plate component;

the base is provided with the location module and a plurality of the range finding sensors along the both sides of the first horizontal direction.

With reference to the first aspect, in one possible implementation manner, the positioning module includes:

the second positioning flat plate component is arranged on the upper surface of the base, is provided with a second positioning hole and is used for being matched with the first positioning flat plate component to form a surface and is used for realizing horizontal positioning of the overturning clamp and limiting overturning of the overturning clamp around the first horizontal direction;

The positioning driving assembly is arranged on the base and is positioned below the second positioning flat plate assembly;

the positioning pin shaft passes through the second positioning hole and is connected with the positioning driving assembly, wherein the positioning driving assembly is used for driving the positioning pin shaft to extend out of the second positioning hole along the vertical direction and be matched with the first positioning hole so as to limit the movement of the turnover fixture in the horizontal plane and limit the turnover of the turnover fixture around the first horizontal direction; and

the first limiting assembly is arranged on the base or the positioning driving assembly and is used for limiting the telescopic travel of the positioning pin shaft along the vertical direction.

With reference to the first aspect, in one possible implementation manner, the first limiting assembly includes:

the first limiting bracket is arranged on the base or the positioning driving assembly;

the first limit sensor is arranged on the first limit bracket and is electrically connected with the control module; and

the second limit sensor is arranged on the first limit bracket and is electrically connected with the control module;

the first limit sensor and the second limit sensor are distributed along the vertical direction, and the first limit sensor is located above the second limit sensor; the output end of the positioning driving assembly is provided with a first trigger piece, and the first trigger piece is used for triggering the first limit sensor or the second limit sensor.

With reference to the first aspect, in one possible implementation manner, the overturning and shifting device further includes a buffer module, where the buffer module includes:

the elastic buffer seat is movably arranged on the base; and

the buffer driving assembly is arranged on the base and connected with the elastic buffer seat, and drives the elastic buffer seat to ascend along the vertical direction so as to support the overturning clamp and descend synchronously with the overturning clamp.

With reference to the first aspect, in one possible implementation manner, the elastic buffer seat includes a supporting plate, an elastic piece and a supporting shaft sequentially arranged from top to bottom along the vertical direction;

one end of the elastic piece is connected with the bottom of the supporting plate, the other end of the elastic piece is connected with the supporting shaft, and one end, far away from the elastic piece, of the supporting shaft is connected with the buffer driving assembly.

With reference to the first aspect, in one possible implementation manner, the buffer module further includes a second limiting component, where the second limiting component includes:

the second limiting bracket is arranged on the base or the buffer driving assembly;

the third limit sensor is arranged on the second limit bracket and is electrically connected with the control module; and

The fourth limit sensor is arranged on the second limit bracket and is electrically connected with the control module;

the third limit sensor and the fourth limit sensor are distributed along the vertical direction, and the third limit sensor is located above the fourth limit sensor; the output end of the buffer driving assembly is provided with a second trigger piece, and the second trigger piece is used for triggering the third limit sensor or the fourth limit sensor.

With reference to the first aspect, in one possible implementation manner, the overturning and displacing device further includes a clamping module, where the clamping module includes:

the clamping driving assembly is arranged on the base;

the pressing arm mechanism is arranged on the clamping driving assembly;

when the turnover fixture descends to the base and the positioning module is matched with the positioning plane to form a surface, the clamping driving assembly is used for driving the pressing arm mechanism to extend into the turnover fixture to apply pressure to the turnover fixture so that the positioning module is in close contact with the surface of the first positioning flat plate assembly.

In order to achieve the above object, in a second aspect, the present application further provides a turnover displacement method applied to the turnover displacement device provided in the first aspect, where the turnover displacement method includes the steps of:

The workpiece is horizontally clamped through the overturning clamp;

lifting the overturning clamp to a preset height through the lifting overturning module, and driving the overturning clamp to rotate around the first horizontal direction by a preset angle to perform displacement so as to enable one of the positioning planes to face the base;

measuring different points on the positioning plane in the second horizontal direction through a plurality of distance measuring sensors, and obtaining distances from the different points on the positioning plane to a preset reference plane;

under the condition that the distances from all the points to the preset reference surface are within a preset range value, the lifting overturning module supports the overturning clamp to descend;

the positioning module stretches into the corresponding first positioning hole to position and guide the overturning clamp, and when the overturning clamp descends to form surface matching with the surface of the corresponding first positioning flat plate component, positioning is completed;

and the lifting and overturning module continuously descends to an initial position and is separated from the overturning clamp.

To achieve the above object, in a third aspect, the present application further provides a processing apparatus, including a numerically-controlled machine tool and a turnover displacement device provided according to the above first aspect, where the turnover displacement device is disposed on the numerically-controlled machine tool.

Compared with the prior art, the beneficial effect of this application:

the application provides a turnover displacement device, a turnover displacement method and processing equipment, wherein the turnover displacement device enables one of positioning planes to face a base after a lifting turnover module lifts a turnover fixture along a vertical direction and drives the turnover fixture to turn over by a preset angle, and then different point positions on the positioning plane are measured through a plurality of distance measuring sensors which are arranged on the base at intervals along a second horizontal direction so as to obtain distances from the different point positions on the positioning plane to a preset reference plane; when the distances from different points to the preset reference surface are not within the preset range value, the fact that a larger included angle exists between the positioning plane facing the base and the reference surface (namely, the angle error is large) is indicated, so that the lifting overturning module can be controlled by the control module to drive the overturning clamp to rotate, and the angle is adjusted; when the distances from different point positions to the preset reference surface reach the preset range value, the angle compounding requirement of the positioning plane facing the base and the reference surface is illustrated, so that the lifting overturning module can be controlled by the control module to drive the overturning clamp to wholly descend, and the positioning module stretches into the first positioning hole and is matched with the surface forming surface of the first positioning flat plate component to guide and position the overturning clamp. Therefore, the turnover position-changing device is high in turnover position-changing precision, machining precision is improved, abrasion to a positioning plane can be reduced due to high positioning precision, long-term stable operation of the turnover position-changing device is ensured, service life is prolonged, and working efficiency is improved. And the first positioning flat plate component and the positioning module are detachably arranged, and only the later stage needs to be replaced in a targeted mode, so that the later maintenance cost is greatly reduced.

Additional features and advantages of the present application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate only some embodiments of the application and are therefore not to be considered limiting of its scope, for the purpose of providing additional related drawings from which the invention may be practiced by those of ordinary skill in the art without the exercise of inventive faculty. In the drawings:

fig. 1 shows a schematic perspective view of a turnover displacement device according to an embodiment of the present application;

FIG. 2 shows a schematic view of a partial enlarged structure at A in FIG. 1;

FIG. 3 is a schematic diagram showing the assembly structure of the worktable and the positioning module, the buffer module and the clamping module of the base in the turnover displacement device shown in FIG. 1;

fig. 4 is a schematic perspective view of a positioning module according to an embodiment of the present disclosure;

fig. 5 is a schematic perspective view of a buffer module according to an embodiment of the present disclosure;

fig. 6 is a schematic perspective view of a clamping module according to an embodiment of the present disclosure;

FIG. 7 is a schematic view showing an assembled structure of a base of the base and a lifting assembly of the tilting displacement device shown in FIG. 1;

fig. 8 is a schematic view showing a structure of a turnover tray assembly of a lifting turnover module in the turnover displacement device shown in fig. 1.

Reference numerals illustrate:

100. a base; 101. hollowed-out avoidance areas; 110. a base; 120. a work table;

200. turning over the clamp; 210. positioning a plane; 211. a clamping cavity; 220. a first positioning plate assembly; 2201. a first positioning hole; 2202. a first positioning surface; 221. a first positioning liner plate; 222. a first positioning bushing; 230. a turnover plate; 240. an outer ring gear;

300. a positioning module; 310. a second locating plate assembly; 3101. a second positioning hole; 3102. a second positioning surface; 311. a second positioning liner plate; 312. a second positioning bushing; 320. positioning a driving assembly; 330. positioning pin shafts; 340. a first limit assembly; 341. the first limiting bracket; 342. a first limit sensor; 343. the second limit sensor; 344. a first trigger; 350. a third positioning bushing;

400. a buffer module; 410. an elastic buffer seat; 411. a support plate; 412. an elastic member; 413. a support shaft; 420. a buffer drive assembly; 430. the second limiting component; 431. the second limiting bracket; 432. a third limit sensor; 433. a fourth limit sensor; 434. a second trigger;

500. A clamping module; 510. a clamping drive assembly; 520. a pressing arm mechanism; 521. a compressing seat; 522. pressing the arm lever; 530. a decompression sensor;

600. lifting and overturning the module; 610. a lifting assembly; 611. lifting a motor; 612. a gear box; 613. a lifter; 620. overturning the tray assembly; 621. a tray frame; 6210. wheel grooves; 622. a riding wheel; 623. a guide plate; 624. a turnover driving mechanism; 630. a drive gear; 640. a rocker arm;

700. a ranging sensor;

1000. a workpiece;

x, a first horizontal direction; y, the second horizontal direction; z, vertical direction.

Detailed Description

The following describes in detail the implementation of the embodiments of the present application with reference to the accompanying drawings. It should be understood that the detailed description is presented herein by way of illustration and explanation of the present application examples, and is not intended to limit the present application examples.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

In the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The present application will be described in detail below with reference to the attached drawings in conjunction with exemplary embodiments.

Examples

Referring to fig. 1, 2 and 3, the present embodiment provides a turnover displacement device for clamping a horizontal workpiece 1000. Wherein the workpiece 1000 is a prismatic truss structure such as a standard knot for a tower crane.

The turnover displacement device comprises a base 100, a turnover fixture 200, a lifting turnover module 600, a positioning module 300, a ranging sensor 700 and a control module (not shown). The base 100 is arranged on a foundation, the overturning clamp 200 is horizontally arranged on the base 100, the overturning clamp 200 is in contact fit with the base 100, namely, the overturning clamp 200 can be separated relative to the base 100, and the overturning clamp 200 is provided with a penetrating clamping cavity (not shown) along a first horizontal direction X, wherein the clamping cavity is used for clamping a horizontally processed workpiece 1000.

The lifting and overturning module 600 is disposed on the base 100, and the lifting and overturning module 600 is located below the overturning fixture 200. In this embodiment, a hollowed-out avoidance area 101 is provided in the middle of the base 100, and the lifting turnover module 600 is accommodated in the hollowed-out avoidance area 101, so that the whole turnover displacement device is more compact.

The lifting and turning module 600 is used for lifting and turning the turning jig 200 along the vertical direction Z, that is, the lifting and turning module 600 may lift and lower the turning jig 200 along the vertical direction Z, so that the turning jig 200 is separated from or contacted with the base 100. Meanwhile, the lifting turnover module 600 can drive the turnover fixture 200 to rotate around a first horizontal direction X, so as to realize turnover displacement of the turnover fixture 200, wherein the first horizontal direction X passes through the rotation axis of the turnover fixture 200. It should be noted that, the lifting height of the turning jig 200 is greater than the maximum radius of the turning jig 200 when it rotates, so that the turning jig 200 can be prevented from interfering with the base 100.

Further, as shown in fig. 2, the outer peripheral surface of at least one end of the turning fixture 200 along the first horizontal direction X includes a plurality of positioning planes 210 disposed around the first horizontal direction X, each positioning plane 210 is provided with a detachable first positioning flat component 220, and the first positioning flat component 220 is provided with a first positioning hole 2201. The positioning module 300 is detachably disposed on a side of the base 100 corresponding to the positioning plane 210, and the positioning module 300 is configured to extend into the first positioning hole 2201 and form a surface fit with the surface of the first positioning flat component 220, so as to guide and position the turning fixture 200.

A plurality of ranging sensors 700 are disposed at intervals along the second horizontal direction Y on a side of the base 100 corresponding to the positioning plane 210, and the plurality of ranging sensors 700 are respectively configured to measure different points on the positioning plane 210 facing the base 100, so as to obtain distances from the different points on the positioning plane 210 to a preset reference plane.

Alternatively, the ranging sensor 700 may be selected to be a laser sensor or an infrared sensor.

The first horizontal direction X and the second horizontal direction Y are both located in the same horizontal plane and intersect in the horizontal plane. In this embodiment, the first horizontal direction X and the second horizontal direction Y are perpendicular to each other.

The control module is electrically connected to the lifting and overturning module 600, the positioning module 300 and the ranging sensor 700 respectively, and the control module is configured to coordinate the lifting and overturning module 600, the positioning module 300 and the ranging sensor 700. In this embodiment, the control module may acquire measurement data of all the ranging sensors 700 and process the measurement data, and the control module may control actions of the lifting and overturning module 600 and the positioning module 300 according to the measurement data, so that actions of the lifting and overturning module 600 and the positioning module 300 cooperate with each other to complete overturning and positioning of the overturning fixture 200. Alternatively, the control module may be a PLC control module.

Referring to fig. 1, 2 and 3, in the present embodiment, the outer peripheral surfaces of the turning fixture 200 at two ends of the first horizontal direction X are a plurality of positioning planes 210 disposed around the first horizontal direction X, and each positioning plane 210 is provided with a detachable first positioning flat component 220. Meanwhile, two positioning modules 300 and two ranging sensors 700 are respectively arranged on two sides of the base 100 in the first horizontal direction X, so that four positioning modules 300 and four ranging sensors 700 are arranged on the base 100 in total, and two first positioning flat components 220 are arranged on each corresponding positioning plane 210. It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the scope of the present application.

Further, the positioning planes 210 at the same end of the turning fixture 200 are uniformly distributed around the first horizontal direction X, and the included angle between the turning axis and the perpendicular line of two adjacent positioning planes 210 at the same end is C, where c=180° and c=180 ° -360 °/n, and n > 2 (n is the number of positioning planes 210 at one end of the turning fixture 200). In the present embodiment, the number of the positioning planes 210 at one end of the flipping jig 200 is 4, where c=90°, so that there are 8 positioning planes 210 at both ends of the flipping jig 200 in total. It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the scope of the present application.

In order to more clearly describe the structural scheme of the positioning module 300 in this embodiment, a description will be made below of a plurality of positioning modules 300 and a plurality of first positioning flat components 220. The method comprises the following steps:

referring to fig. 2, the first positioning flat component 220 includes a first positioning liner 221 and a first positioning bushing 222, where the first positioning liner 221 is detachably mounted on the corresponding positioning plane 210 by a screw, and a surface of the first positioning liner 221 away from the positioning plane 210 is a first positioning surface 2202. The first positioning bushing 222 is embedded on the first positioning lining plate 221, the first positioning bushing 222 is detachably connected with the positioning plane 210 through a screw, and the first positioning bushing 222 is provided with the first positioning hole 2201.

Referring to fig. 1, 2, 3 and 4, the positioning module 300 includes a second positioning plate assembly 310, a positioning driving assembly 320, a positioning pin 330 and a first limiting assembly 340. The second positioning flat component 310 is disposed on the upper surface of the base 100, and a second positioning hole 3101 is disposed on the second positioning flat component 310, where the second positioning hole 3101 is used to correspond to the first positioning hole 2201 on the corresponding first positioning flat component 220. The second positioning flat component 310 is further configured to form a surface fit with the first positioning liner 221 of the first positioning flat component 220, so as to implement horizontal positioning of the turning fixture 200 and limit turning of the turning fixture 200 around the first horizontal direction X.

The positioning driving assembly 320 is disposed on the base 100 and below the second positioning plate assembly 310. The positioning pin 330 is disposed through the second positioning hole 3101 and connected to the positioning driving assembly 320. The positioning driving assembly 320 is used for driving the positioning pin 330 to extend out of the second positioning hole 3101 along the vertical direction Z to cooperate with the first positioning hole 2201 facing the base 100, so as to limit the movement of the turning fixture 200 in the horizontal plane and limit the turning of the turning fixture 200 around the first horizontal direction X. The first limiting assembly 340 is disposed on the base 100 or the positioning driving assembly 320, and the first limiting assembly 340 is used for limiting the telescopic travel of the positioning pin 330 along the vertical direction Z.

It can be appreciated that when the lifting and turning module 600 drives the turning jig 200 to descend to approach the base 100, the first positioning hole 2201 of the first positioning flat component 220 facing the base 100 is aligned with the second positioning hole 3101 of the corresponding second positioning flat component 310, and the positioning pin 330 extends out and is inserted into the first positioning hole 2201 under the driving of the positioning driving component 320, so as to provide a guiding function for the descent of the turning jig 200, and prevent the turning jig 200 from being deviated when descending; when the lifting and overturning module 600 drives the overturning clamp 200 to descend onto the base 100, the first positioning flat component 220 abuts against the surface of the corresponding second positioning flat component 310, so that surface matching is formed.

The second positioning flat component 310 comprises a second positioning lining plate 311 and a second positioning lining sleeve 312, the second positioning lining plate 311 is detachably mounted on the base 100 through a screw, one surface of the second positioning lining plate 311 away from the base 100 is a second positioning surface 3102, and the first positioning surface 2202 and the second positioning surface 3102 form surface matching through contact. Among them, it can be understood that the first positioning surface 2202 and the second positioning surface 3102 have high machining accuracy. The second positioning bush 312 is embedded on the second positioning lining plate 311, the second positioning bush 312 is detachably connected with the base 100 through a screw, and the second positioning bush 312 is provided with the second positioning hole 3101.

Further, the positioning module 300 further includes a third positioning bushing 350, the third positioning bushing 350 is disposed on the lower surface of the base 100, and the positioning pin 330 passes through the third positioning bushing 350 to be connected with the positioning driving assembly 320. The second positioning bushing 312 and the third positioning bushing 350 each serve to provide a guiding function for the positioning pin 330.

The positioning drive assembly 320 may output a linear reciprocating motion, alternatively, the positioning drive assembly 320 may be selected from an oil cylinder, an air cylinder, an electric push rod, a linear motor, a screw motor, or the like. It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the scope of the present application.

The first limit assembly 340 includes a first limit bracket 341, a first limit sensor 342, and a second limit sensor 343. The first limiting bracket 341 is disposed on the base 100 or the positioning driving assembly 320, and in this embodiment, the first limiting bracket 341 is disposed on the positioning driving assembly 320. The first limit sensor 342 and the second limit sensor 343 are both arranged on the first limit bracket 341 and are respectively electrically connected with the control module, the first limit sensor 342 and the second limit sensor 343 are distributed along the vertical direction Z, and the first limit sensor 342 is located above the second limit sensor 343. The output end of the positioning drive assembly 320 is provided with a first trigger 344, and in this embodiment, the output end of the positioning drive assembly 320 includes an output shaft, and the first trigger 344 is disposed on the output shaft of the positioning drive assembly 320. Wherein, the first trigger 344 is used for triggering the first limit sensor 342 or the second limit sensor 343.

It can be appreciated that the positioning driving assembly 320 drives the positioning pin 330 to rise, so as to drive the first triggering member 344 to rise together, and when the first triggering member 344 triggers the first limit sensor 342, the control module obtains a signal fed back by the first limit sensor 342 and controls the positioning driving assembly 320 to stop according to the signal, i.e. the positioning pin 330 is illustrated to rise to a preset height. When the positioning driving assembly 320 drives the positioning pin 330 to descend, when the first triggering piece 344 triggers the second limit sensor 343, the control module obtains a signal fed back by the second limit sensor 343 and controls the positioning driving assembly 320 to stop according to the signal, that is, the positioning pin 330 is illustrated to descend to the initial position, and at this time, the end face of the end portion of the positioning pin 330 is flush with the second positioning surface 3102 of the second positioning bushing 312 or lower than the second positioning surface 3102.

Further, the end of the positioning pin 330 is configured as a frustum, so that the positioning pin 330 can be easily inserted into the first positioning hole 2201.

Alternatively, both the first limit sensor 342 and the second limit sensor 343 may be selected as a proximity switch or a travel switch. In some embodiments, the first limit sensor 342 and the second limit sensor 343 may also be replaced with mechanical limit stops.

Referring to fig. 1, fig. 2, fig. 3, and fig. 5, the turning and shifting device further includes a buffer module 400, and the number of the buffer modules 400 may be set to be plural. In the present embodiment, four buffer modules 400 are provided, and two buffer modules 400 are respectively disposed on both sides of the base 100 in the first horizontal direction X. The buffer module 400 is used for buffering the falling turnover fixture 200, preventing the turnover fixture 200 from falling too fast or generating impact with the base 100, playing a role in protection, and improving the reliability of the device.

In order to more clearly describe the structural scheme of the buffer module 400 in this embodiment, a plurality of buffer modules 400 are described below. Specifically, the buffer module 400 includes an elastic buffer seat 410 and a buffer driving assembly 420 sequentially disposed along a vertical direction Z. Wherein, the elastic buffer seat 410 is movably disposed on the base 100; the buffer driving assembly 420 is disposed on the base 100 and connected to the elastic buffer seat 410, and the buffer driving assembly 420 drives the elastic buffer seat 410 to rise along the vertical direction Z, so as to support the turning fixture 200 and descend synchronously with the turning fixture 200, thereby providing buffer support for the turning fixture 200 and reducing the impact force of the turning fixture 200 after descending.

The elastic buffer seat 410 comprises a supporting plate 411, an elastic piece 412 and a supporting shaft 413 which are sequentially arranged from top to bottom along the vertical direction Z; wherein, the upper surface of the supporting plate 411 is used for supporting the positioning plane 210 of the turning clamp 200 facing the base 100, one end of the elastic member 412 is connected with the bottom of the supporting plate 411, the other end is connected with the shaft end surface of the supporting shaft 413, and one end of the supporting shaft 413 away from the elastic member 412 is connected with the buffer driving assembly 420.

Alternatively, the number of the elastic members 412 may be plural, and the elastic members 412 may be selected as spring members.

Alternatively, the buffer driving assembly 420 may output a linear reciprocating motion, alternatively, the buffer driving assembly 420 may be selected as an oil cylinder, an air cylinder, an electric push rod, a linear motor, a screw motor, or the like. It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the scope of the present application.

The buffer module 400 further includes a second limiting component 430, where the second limiting component 430 is used to limit the lifting travel of the elastic buffer seat 410 in the vertical direction Z. Specifically, the second spacing assembly 430 includes a second spacing bracket 431, a third spacing sensor 432, and a fourth spacing sensor 433. The second limiting bracket 431 is disposed on the base 100 or the buffer driving assembly 420, and in this embodiment, the second limiting bracket 431 is disposed on the buffer driving assembly 420. The third limit sensor 432 is disposed on the second limit bracket 431 and electrically connected to the control module; the fourth limit sensor 433 is disposed on the second limit bracket 431 and electrically connected to the control module. The third limit sensor 432 and the fourth limit sensor 433 are distributed along the vertical direction Z, and the third limit sensor 432 is located above the fourth limit sensor 433; the output end of the buffer driving assembly 420 is provided with a second triggering element 434, and the second triggering element 434 is used for triggering the third limit sensor 432 or the fourth limit sensor 433. It should be noted that, in the present embodiment, the structural scheme and the working principle of the second limiting assembly 430 are identical to those of the first limiting assembly 340, and are not described in detail herein.

Referring to fig. 1, fig. 2, fig. 3, and fig. 6, the turning and shifting device further includes a clamping module 500, and a plurality of clamping modules 500 may be disposed. In the present embodiment, four buffer modules 400 are provided, and two buffer modules 400 are respectively disposed on two sides of the base 100 in the first horizontal direction X. The clamping module 500 is used for clamping the turnover fixture 200 which is lowered and positioned, so as to prevent the turnover fixture 200 from shifting during the processing of the workpiece 1000, thereby ensuring the processing precision.

Specifically, the clamping module 500 includes a clamping driving assembly 510 and a pressing arm mechanism 520, where the clamping driving assembly 510 is disposed on the base 100; the hold-down arm mechanism 520 is disposed on the clamp drive assembly 510. Further, a clamping cavity 211 is provided on the positioning plane 210 of the flip clamp 200, wherein a cavity opening of the clamping cavity 211 is configured for the compression arm mechanism 520 to extend in, and a width of the cavity opening of the clamping cavity 211 is smaller than a width of the cavity of the clamping cavity 211, so that a cavity bottom wall is formed on a side, close to the cavity opening, of the cavity of the clamping cavity 211.

Therefore, when the turnover fixture 200 descends to the base 100 and the positioning module 300 is in surface fit with the positioning plane 210, the clamping driving assembly 510 can drive the pressing arm mechanism 520 to extend into the inner cavity of the clamping cavity 211 from the cavity opening of the clamping cavity 211, and at this time, the clamping driving assembly 510 can press the cavity bottom wall of the clamping cavity 211 through the pressing arm mechanism 520, so that pressure can be applied to the turnover fixture 200, so that the positioning module 300 is in close contact with the surface of the first positioning flat plate assembly 220, and clamping of the turnover fixture 200 is realized. When the workpiece 1000 is processed and needs to be shifted, the clamping module 500 firstly releases the clamping of the turning clamp 200, and then lifts the turning clamp 200 by lifting the turning module 600, so that the pressing arm mechanism 520 is separated from the cavity opening of the clamping cavity 211.

Alternatively, the clamping driving assembly 510 may output a linear reciprocating motion, alternatively, the clamping driving assembly 510 may be selected as an oil cylinder, an air cylinder, an electric push rod, a linear motor, a screw motor, or the like. It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the scope of the present application.

The pressing arm mechanism 520 comprises a pressing seat 521, a pressing arm 522 and a pressing sensor 530, the pressing seat 521 is arranged on the clamping driving assembly 510, the middle part of the pressing arm 522 is pivotally connected with the pressing seat 521, one end of the pressing arm 522 is pivotally connected with the output shaft of the clamping driving assembly 510, and the other end of the pressing arm 522 is used for being abutted against the cavity bottom wall of the clamping cavity 211. Thus, the arrangement of the pressing arm 522 constitutes a lever structure by the other end of the pressing arm 522 swinging around the pivot with the pressing seat 521 under the driving of the clamping driving assembly 510; when the clamping driving assembly 510 drives the pressing arm 522 to swing down, the other end of the pressing arm 522 is out of contact with the cavity bottom wall of the clamping cavity 211; when the clamp driving assembly 510 drives the hold-down arm 522 to swing up, the other end of the hold-down arm 522 is brought into abutment with the cavity bottom wall of the clamp cavity 211. The decompression sensor 530 is disposed on the pressing seat 521 and electrically connected to the control module. When the decompression sensor 530 is inductively engaged with the pressing arm 522 in the state of releasing the abutment, it is determined that the pressing arm 522 is in the state of releasing the abutment (at this time, the pressing arm 520 can normally enter and exit the cavity of the clamping cavity 211), and if not, the control module controls the lifting and overturning module 600 to not perform the action of lifting and overturning the fixture 200, and at the same time, an alarm signal can be sent to prevent misoperation and damage to the device. Alternatively, the decompression sensor 530 is a travel switch or a contact sensor.

Referring to fig. 1, 3 and 7, the base 100 includes a base 110 and a workbench 120, the workbench 120 is disposed on the base 110 and is located above the base 110, the middle of the workbench 120 is hollowed out, and the base 110 is provided with a concave groove corresponding to the hollowed-out area. The hollow avoidance area 101 is formed in the middle after the workbench 120 and the base 110 are assembled.

Referring to fig. 1, 7 and 8, the lifting and overturning module 600 includes a lifting assembly 610 and an overturning tray assembly 620, the lifting assembly 610 is disposed on the base 100 and located in the hollowed-out avoidance area 101, the overturning tray assembly 620 is disposed on the lifting assembly 610 and located above the lifting assembly 610, the overturning fixture 200 is located on the overturning tray assembly 620, the lifting assembly 610 is used for lifting the overturning fixture 200 up and down along the vertical direction Z by lifting the overturning tray assembly 620, and the overturning tray assembly 620 can drive the overturning fixture 200 to rotate around the first horizontal direction X.

Specifically, the lifting assembly 610 includes a lifting motor 611, a plurality of gear boxes 612 and a plurality of lifters 613 disposed on the base 110, the plurality of gear boxes 612 are sequentially distributed along the second horizontal direction Y, two adjacent gear boxes 612 are connected by a coupling, the plurality of lifters 613 are uniformly distributed on two sides of the gear boxes 612, one of the gear boxes 612 is in transmission connection with one lifter 613 on two sides, and each lifter 613 is connected with the overturning tray assembly 620. The motor shaft of the lifting motor 611 is in transmission connection with a gear box 612 positioned at the first position. Thereby, the lifter 613 is driven to be lifted synchronously by the output power of the lifting motor 611, so that the flipping tray assembly 620 is driven to be lifted in the vertical direction Z.

In some embodiments, the lifting assembly 610 may also be selected from a cylinder, an electric pushrod, a linear motor, a screw motor, or the like. It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the scope of the present application.

The flipping tray assembly 620 includes a tray frame 621, a riding wheel 622, a guide plate 623, and a flipping driving mechanism 624. The bottom of the tray frame 621 is connected with all the lifters 613, and the tray frame 621 can be accommodated in the hollow avoidance area 101. The tray frame 621 is equipped with a plurality of deflector 623 on the periphery, and deflector 623 and fretwork dodge district 101 lateral wall face sliding fit to guarantee that tray frame 621 goes up and down more stably.

Further, wheel grooves 6210 are provided on both sides of the tray frame 621, the wheel grooves 6210 extend along the second horizontal direction Y, and each wheel groove 6210 is provided with a plurality of idlers 622 along the second horizontal direction Y. The outer circumferential surface of the flipping jig 200 is provided with an annular flipping plate 230 corresponding to each wheel groove 6210. When the flipping pallet assembly 620 is lifted by the lifting assembly 610, the outer circumferential surface of the flipping plate 230 is in rolling contact with all of the idlers 622 in the corresponding wheel groove 6210. The turnover driving mechanism 624 is disposed in the tray frame 621, and the turnover driving mechanism 624 is in transmission fit with the turnover jig 200 through a driving gear 630 or a friction wheel. It will be appreciated that the outer peripheral surface of the flipping jig 200 is provided with an outer gear ring 240 which meshes with the driving gear 630, or the outer peripheral surface of the flipping jig 200 is provided with a friction ring which friction-fits with the friction wheel. Alternatively, the flip drive mechanism 624 may be selected to be a motor.

In this embodiment, the inversion driving mechanism 624 is in meshed transmission with the outer gear ring 240 on the inversion jig 200 through the driving gear 630, thereby driving the inversion jig 200 to rotate about the first horizontal direction X. The tray rack 621 is correspondingly provided with a rocker arm 640 capable of swinging along the vertical direction Z, and a reset piece is arranged between the rocker arm 640 and the tray rack 621 and used for driving the rocker arm 640 to swing towards a direction close to the outer gear ring 240. The driving gear 630 is disposed on the rocker arm 640, so that the rocker arm 640 can absorb the impact force when the driving gear 630 contacts with the outer gear ring 240 when the turnover tray assembly 620 is lifted by the lifting assembly 610, and meanwhile, the driving gear 630 and the outer gear ring 240 can be ensured to be always meshed during transmission, so that the reliability of transmission is improved. Optionally, the restoring member is a torsion spring.

Referring to fig. 1 to 8, further, the present embodiment also provides a turning and shifting method applied to the turning and shifting device provided above. The turnover displacement method comprises the following steps:

s100: the workpiece 1000 is horizontally clamped by the turning jig 200.

S200: the overturning fixture 200 is lifted to a preset height by the lifting overturning module 600, and the overturning fixture 200 is driven to rotate around the first horizontal direction X by a preset angle to perform displacement, so that one of the positioning planes 210 faces the base 100.

In this embodiment, the clamping module 500 releases the clamp of the flipping jig 200 when the flipping jig 200 is lifted. Meanwhile, the positioning pin 330 in the positioning module 300 is to withdraw from the first positioning hole 2201. The lifting assembly 610 then lifts the flipping jig 200 to a designated height and the flipping driving mechanism 624 in the flipping tray assembly 620 drives the flipping jig 200 to flip 90 ° and then stops. In this embodiment, the angle of each turn of the turning jig 200 is 90 °, and the turning direction is kept unchanged.

S300: the plurality of ranging sensors 700 are used for measuring different points on the positioning plane 210 in the second horizontal direction Y, and obtaining distances from the different points on the positioning plane 210 to a preset reference plane.

S400: in the case that the distances from all the points to the preset reference plane are within the preset range value, the lifting and overturning module 600 lifts the overturning jig 200 to descend. If not, the turning jig 200 is driven to rotate forward or backward by the turning driving mechanism 624 in the turning tray assembly 620 to adjust the rotation angle until the distances from all the points to the preset reference plane are stopped within the preset range value.

In some embodiments, the preset range of values set to increase the accuracy reference plane to the location plane 210 should be relatively narrow, ensuring that the first location plane 2202 and the corresponding second location plane 3102 remain approximately parallel.

S500: the positioning module 300 extends into the corresponding first positioning hole 2201 to position and guide the turning clamp 200, and when the turning clamp 200 descends to form surface fit with the surface of the corresponding first positioning flat component 220, positioning is completed.

In some embodiments, the positioning pins 330 in the positioning module 300 may further extend into the corresponding first positioning holes 2201 when the turning fixture 200 is lowered to the position where the positioning module 300 is in surface engagement with the surface of the corresponding first positioning plate assembly 220, so as to position and stop the turning fixture 200.

In this embodiment, the turning fixture 200 is further clamped by the clamping module 500, so as to prevent the turning fixture 200 from moving during processing of the workpiece 1000, thereby improving processing accuracy. Of course, when lifting the flipping jig 200, the clamping module 500 releases the clamping of the flipping jig 200.

S600: the lifting and flipping module 600 continues to descend to the initial position and separate from the flipping jig 200. To ensure that the flipping jig 200 is stably seated on the base 100 for easy positioning and fixing.

It should be noted that, the step S600 and the step S500 are not consecutive, or the step S600 may be performed before the step S500, or the step S500 and the step S600 may be performed simultaneously.

Furthermore, the present embodiment also provides a processing device, where the processing device includes a numerically-controlled machine tool and the above-provided turning and shifting device, the turning and shifting device is disposed on the numerically-controlled machine tool, and the numerically-controlled machine tool can perform at least one of drilling, boring and milling on the workpiece 1000.

Compared with the prior art, the turnover position-changing device provided by the embodiment has the advantages that the turnover position-changing precision is high, the machining precision is improved, meanwhile, the abrasion to the positioning plane 210 can be reduced due to the high positioning precision, the turnover position-changing device is ensured to stably operate for a long time, the service life is prolonged, and the working efficiency is improved. And the first positioning flat component 220 and the positioning module 300 can be detachably arranged, and only needs to be replaced in a targeted mode in the later stage, so that the later maintenance cost is greatly reduced.

The foregoing details of the optional implementation manner of the embodiment of the present application have been described in detail with reference to the accompanying drawings, but the embodiment of the present application is not limited to the specific details of the foregoing implementation manner, and various simple modifications may be made to the technical solution of the embodiment of the present application within the scope of the technical concept of the embodiment of the present application, and these simple modifications all belong to the protection scope of the embodiment of the present application.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail in this application.

Moreover, any combination of the various embodiments of the present application may be made, so long as it does not deviate from the idea of the embodiment of the present application, and it should also be regarded as the disclosure of the embodiment of the present application.

Claims

1. A turnover displacement device, characterized by comprising:

a base (100);

the overturning clamp (200) is horizontally arranged on the base (100) and is used for clamping a horizontally processed workpiece (1000);

the lifting turnover module (600) is arranged on the base (100) and is used for lifting the turnover clamp (200) along the vertical direction (Z) and driving the turnover clamp (200) to rotationally displace around the first horizontal direction (X), wherein the peripheral surface of at least one end of the turnover clamp (200) along the first horizontal direction (X) comprises a plurality of positioning planes (210) arranged around the first horizontal direction (X), each positioning plane (210) is provided with a detachable first positioning flat plate component (220), and a first positioning hole (2201) is formed in the first positioning flat plate component (220);

the positioning module (300) is detachably arranged on one side of the base (100) corresponding to the positioning plane (210), and the positioning module (300) is used for extending into the first positioning hole (2201) and being matched with the surface of the first positioning flat component (220) in a surface mode;

The distance measuring sensors (700) are arranged on one side, corresponding to the positioning plane (210), of the base (100) at intervals along the second horizontal direction (Y), and the distance measuring sensors (700) are respectively used for measuring different points on the positioning plane (210) facing the base (100) so as to obtain distances from the different points on the positioning plane (210) to a preset reference plane; and

the control module is electrically connected with the lifting turnover module (600), the positioning module (300) and the ranging sensor (700) respectively, and is configured to coordinate the work among the lifting turnover module (600), the positioning module (300) and the ranging sensor (700).

2. The turnover displacement device according to claim 1, wherein the turnover fixture (200) is provided with a plurality of positioning planes (210) arranged around the first horizontal direction (X) on the outer peripheral surfaces of the two ends of the first horizontal direction (X), and each positioning plane (210) is provided with a detachable first positioning flat plate component (220);

the base (100) is provided with the positioning module (300) and a plurality of ranging sensors (700) along two sides of the first horizontal direction (X).

3. The flipping and indexing device according to claim 1 or 2, wherein the positioning module (300) comprises:

the second positioning flat plate component (310) is arranged on the upper surface of the base (100), a second positioning hole (3101) is formed in the second positioning flat plate component (310), and the second positioning flat plate component (310) is used for being matched with the first positioning flat plate component (220) in a surface mode and used for achieving horizontal positioning of the overturning clamp (200) and limiting overturning of the overturning clamp (200) around the first horizontal direction (X);

a positioning drive assembly (320) disposed on the base (100) and below the second positioning plate assembly (310);

the positioning pin shaft (330) passes through the second positioning hole (3101) and is connected with the positioning driving assembly (320), wherein the positioning driving assembly (320) is used for driving the positioning pin shaft (330) to extend out of the second positioning hole (3101) along the vertical direction (Z) to be matched with the first positioning hole (2201) so as to limit the movement of the turning clamp (200) in the horizontal plane and limit the turning of the turning clamp (200) around the first horizontal direction (X); and

The first limiting assembly (340) is arranged on the base (100) or the positioning driving assembly (320), and the first limiting assembly (340) is used for limiting the telescopic travel of the positioning pin shaft (330) along the vertical direction (Z).

4. A flipping displacement device according to claim 3, wherein the first stop assembly (340) comprises:

the first limit bracket (341) is arranged on the base (100) or the positioning driving assembly (320);

the first limit sensor (342) is arranged on the first limit bracket (341) and is electrically connected with the control module; and

the second limit sensor (343) is arranged on the first limit bracket (341) and is electrically connected with the control module;

wherein the first limit sensor (342) and the second limit sensor (343) are distributed along the vertical direction (Z), and the first limit sensor (342) is located above the second limit sensor (343); the output end of the positioning driving assembly (320) is provided with a first triggering piece (344), and the first triggering piece (344) is used for triggering the first limit sensor (342) or the second limit sensor (343).

5. The flip-chip indexing device according to claim 1, further comprising a buffer module (400), the buffer module (400) comprising:

an elastic buffer seat (410) movably arranged on the base (100); and

the buffer driving assembly (420) is arranged on the base (100) and connected with the elastic buffer seat (410), and the buffer driving assembly (420) drives the elastic buffer seat (410) to ascend along the vertical direction (Z) so as to support the overturning clamp (200) and descend synchronously with the overturning clamp (200).

6. The turnover displacement device according to claim 5, characterized in that said elastic buffer seat (410) comprises, from top to bottom, a supporting plate (411), an elastic element (412) and a supporting shaft (413) arranged in sequence along said vertical direction (Z);

one end of the elastic piece (412) is connected with the bottom of the supporting plate (411), the other end of the elastic piece is connected with the supporting shaft (413), and one end, far away from the elastic piece (412), of the supporting shaft (413) is connected with the buffer driving assembly (420).

7. The flip-chip indexing device according to claim 5, wherein the buffer module (400) further comprises a second limiting assembly (430), the second limiting assembly (430) comprising:

The second limiting bracket (431) is arranged on the base (100) or the buffer driving assembly (420);

the third limit sensor (432) is arranged on the second limit bracket (431) and is electrically connected with the control module; and

the fourth limit sensor (433) is arranged on the second limit bracket (431) and is electrically connected with the control module;

wherein the third limit sensor (432) and the fourth limit sensor (433) are distributed along the vertical direction (Z), and the third limit sensor (432) is located above the fourth limit sensor (433); the output end of the buffer driving assembly (420) is provided with a second triggering piece (434), and the second triggering piece (434) is used for triggering the third limit sensor (432) or the fourth limit sensor (433).

8. The flip-chip indexing device according to claim 1, further comprising a clamping module (500), the clamping module (500) comprising:

a clamping drive assembly (510) disposed on the base (100); and

a pressing arm mechanism (520) provided to the clamping drive assembly (510);

When the turnover fixture (200) descends to the base (100) and the positioning module (300) is matched with the positioning plane (210) in a surface mode, the clamping driving assembly (510) is used for driving the pressing arm mechanism (520) to extend into the turnover fixture (200) to apply pressure to the turnover fixture (200) so that the positioning module (300) is in close contact with the surface of the first positioning flat plate assembly (220).

9. A turnover displacement method applied to the turnover displacement device according to any one of claims 1 to 8, comprising the steps of:

the workpiece (1000) is horizontally clamped through the overturning clamp (200);

lifting the overturning clamp (200) to a preset height through the lifting overturning module (600), and driving the overturning clamp (200) to rotate around the first horizontal direction (X) by a preset angle to perform displacement so as to enable one of the positioning planes (210) to face the base (100);

measuring different points on the positioning plane (210) in the second horizontal direction (Y) through a plurality of ranging sensors (700), and obtaining distances from the different points on the positioning plane (210) to a preset reference plane;

Under the condition that the distances from all the points to the preset reference plane are within a preset range value, the lifting overturning module (600) supports the overturning clamp (200) to descend;

the positioning module (300) stretches into the corresponding first positioning hole (2201) to position and guide the overturning clamp (200), and when the overturning clamp (200) descends to form surface matching with the surface of the corresponding first positioning flat plate component (220), positioning is completed;

the lifting and overturning module (600) continues to descend to an initial position and is separated from the overturning clamp (200).

10. A processing apparatus comprising a numerical control machine and the turnover displacement device according to any one of claims 1 to 8, the turnover displacement device being provided to the numerical control machine.