阅读说明：本技术 一种用于cnc机床的工件装卸设备 (Workpiece loading and unloading equipment for CNC (computerized numerical control) machine tool ) 是由 徐美奂 阮德新 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种用于CNC机床的工件装卸设备,包括工件夹持组件和吊装组件,所述工件夹持组件包括吊框和吊爪,所述吊装组件包括位于底部的底框垂直固定在其一端中部的垂直的框立柱,所述框立柱内部设有活动柱,所述活动柱内部设置有横梁,所述工件夹持组件和吊装组件通过横梁内拉出的吊绳连接,所述底框的轮廓呈矩形框状,所述底框下端开有框内仓,所述底框上表面开有减重槽,所述底框内部安装有若干个万向滚轮,所述框立柱焊接固定在底框的边缘中部,所述活动柱下方设有内柱体,所述内柱体内部开有直线阵列分布的内销孔,所述活动柱内开有顶销孔。该用于CNC机床的工件装卸设备,可辅助较重工件的装载和拆卸,适合普遍推广使用。(The invention discloses a workpiece loading and unloading device for a CNC (computerized numerical control) machine tool, which comprises a workpiece clamping component and a hoisting component, wherein the workpiece clamping component comprises a hoisting frame and a hoisting claw, the hoisting component comprises a bottom frame positioned at the bottom and a vertical frame upright column vertically fixed in the middle of one end of the bottom frame, a movable column is arranged inside the frame upright column, a cross beam is arranged inside the movable column, the workpiece clamping component and the hoisting component are connected through a hoisting rope pulled out of the cross beam, the outline of the bottom frame is in a rectangular frame shape, an inner frame bin is arranged at the lower end of the bottom frame, a lightening groove is formed in the upper surface of the bottom frame, a plurality of universal rollers are arranged inside the bottom frame, the frame upright column is welded and fixed in the middle of the edge of the bottom frame, an inner cylinder body is arranged below the movable column, inner cylinder body pin holes distributed in a linear array are formed inside the inner cylinder body, and a top pin hole is formed in the movable column. This a workpiece handling equipment for CNC lathe can assist the loading and the dismantlement of heavier work piece, is fit for generally using widely.)

1. The utility model provides a work piece handling equipment for CNC lathe, includes work piece centre gripping subassembly and hoist and mount subassembly, its characterized in that:

the workpiece clamping assembly comprises a lifting frame (16) and a lifting claw (17);

the hoisting assembly comprises a bottom frame (1) positioned at the bottom and a vertical frame upright post (3) vertically fixed in the middle of one end of the bottom frame, a movable post (5) is arranged inside the frame upright post (3), and a cross beam (6) is arranged inside the movable post (5);

the workpiece clamping assembly is connected with the hoisting assembly through a hoisting rope (11) pulled out of the beam (6).

2. A workpiece handling device for a CNC machine according to claim 1 wherein: the profile of underframe (1) is the rectangular frame form, underframe (1) lower extreme is opened has frame inner bin (101), underframe (1) upper surface is opened there is heavy groove (102), underframe (1) internally mounted has a plurality of universal gyro wheel (2), frame stand (3) welded fastening is at the edge middle part of underframe (1), activity post (5) below is equipped with interior cylinder (501), interior cylinder (501) inside is opened interior pinhole (502) that have the linear array to distribute, it has knock-pin hole (503) to open in activity post (5).

3. A workpiece handling device for a CNC machine according to claim 2 wherein: frame stand (3) upper end is opened there are outer pinhole (301), and outer pinhole (301) and interior pinhole (502) are inside to be inserted and is equipped with connecting pin (4), it has roof beam pinhole (601) that the equidistance distributes to open in crossbeam (6), and inside another connecting pin (4) are inserted and are established roof beam pinhole (601) in roof pinhole (503) inside and crossbeam (6).

4. A workpiece handling device for a CNC machine according to claim 1 wherein: the novel workpiece clamping device is characterized in that two clamping shafts (7) are fixedly inserted into one end of the cross beam (6), a bobbin (9) is fixedly inserted into the other end of the cross beam (6), clamping wheels (8) which are connected in a rotating mode are sleeved outside the clamping shafts (7), a spiral wheel (10) which is connected in a rotating mode is sleeved outside the bobbin (9), the outline of the spiral wheel (10) is in the shape of a belt wheel, a lifting rope (11) is arranged in a groove in the spiral wheel (10), and the lifting rope (11) pulled out from the inside of the spiral wheel (10) penetrates through the two clamping wheels (8) and is connected with a workpiece clamping component.

5. A workpiece handling device for a CNC machine as recited in claim 4, further comprising: be equipped with worm (12) in crossbeam (6) that worm wheel (10) are adjacent, be equipped with the tooth on worm wheel (10) excircle, tooth and worm (12) meshing on worm wheel (10) excircle, inside the inserting of worm (12) is equipped with pole end shaft (13), the both ends of pole end shaft (13) all are equipped with hexagonal cover (14), hexagonal cover (14) are connected with pole end shaft (13) through sleeve (15) that runs through its axial.

6. A workpiece handling device for a CNC machine according to claim 1 wherein: the hanging frame (16) comprises four vertical end clamping columns (1602), four horizontal first horizontal shafts (1601) and four horizontal second horizontal shafts (1604), two ends of the second horizontal shafts (1604) are inserted and fixed inside the end clamping columns (1602), two ends of the first horizontal shafts (1601) are inserted inside the end clamping columns (1602), the first horizontal shafts (1601) and the end clamping columns (1602) are connected in a sliding mode, two column jackscrews (1603) are screwed inside the end clamping columns (1602), and the column jackscrews (1603) tightly press against the adjacent first horizontal shafts (1601).

7. A workpiece handling device for a CNC machine according to claim 1 wherein: the lifting claw (17) comprises a claw seat (1701), the sheet structure of the claw seat (1701) is rotatably connected with an upper claw part (1702) through a claw shaft (1704), a claw jacking screw (1705) is screwed inside the upper end of the upper claw part (1702), the lower end of the upper claw part (1702) is connected with a lower claw part (1703) through a claw adjusting screw (1706), and the claw adjusting screw (1706) penetrates through a through hole at the lower end of the upper claw part (1702) and enters a threaded hole in the lower claw part (1703).

8. A workpiece handling device for a CNC machine according to claim 7 wherein: two channels with circular outlines are arranged in the claw seat (1701), a second horizontal shaft (1604) of the hanging frame (16) is positioned in the circular channel in the claw seat (1701), and seat fixing screws (1707) are arranged in through holes and threaded holes in the middle of the claw seat (1701).

9. A workpiece handling device for a CNC machine according to claim 1 wherein: the lifting claws (17) are accessories of the lifting frame (16), the number of the lifting claws (17) arranged on the lifting frame (16) comprises but is not limited to four, and the number of the lifting claws (17) is increased or reduced as required.

10. A workpiece handling device for a CNC machine as recited in claim 4, further comprising: one end of the lifting rope (11) pulled out from the cross beam (6) is dispersed into four branch lines, and the branch lines are fixed in through holes in the end portion of a first horizontal shaft (1601) of the lifting frame (16).

Technical Field

The invention belongs to the technical field of CNC machine tools, and particularly relates to workpiece loading and unloading equipment for a CNC machine tool.

Background

CNC machines are automated machines equipped with a programmed control system. The control system can logically process and decode a program specified by a control code or other symbolic instructions, represent the program by coded numbers, input the coded numbers into a numerical control device through an information carrier, send various control signals by the numerical control device through arithmetic processing, control the action of a machine tool, and automatically machine parts according to the shape and the size required by a drawing. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, is a flexible and high-efficiency automatic machine tool, represents the development direction of the control technology of modern machine tools, and is a typical mechanical and electrical integration product.

The method is characterized in that a mould is often needed in the machining process of the transformer and the related equipment, the existing CNC machine tool often meets some workpieces with large volumes in the machining process of the transformer and the related equipment mould, the mould adopted by the transformer and the related equipment mould usually has large volumes and also has large weight, a plurality of personnel are needed to lift the workpieces from a workbench of the machine tool in a conventional state, the operation is labor-consuming, the sharp edges of the workpieces can scratch the hands of the personnel in the lifting process, the scheme of lifting the overweight workpieces is also realized by adopting a forklift and a hanging belt, but the forklift needs a large rotation space in the lifting process, and the method cannot be adopted before the CNC machine tool with small space.

Disclosure of Invention

The object of the present invention is to provide a workpiece handling device for a CNC machine to solve the problems set forth in the background above.

In order to achieve the purpose, the invention provides the following technical scheme: a workpiece loading and unloading device for a CNC machine tool comprises a workpiece clamping component and a hoisting component;

the workpiece clamping assembly comprises a lifting frame and a lifting claw;

the hoisting assembly comprises a bottom frame positioned at the bottom and a vertical frame upright column vertically fixed in the middle of one end of the bottom frame, a movable column is arranged in the frame upright column, and a cross beam is arranged in the movable column;

the workpiece clamping assembly is connected with the hoisting assembly through a lifting rope pulled out of the beam.

Preferably, the profile of underframe is the rectangle frame form, the underframe lower extreme is opened there is frame inner bin, the underframe upper surface is opened there is the heavy groove that subtracts, underframe internally mounted has a plurality of universal gyro wheel, frame stand welded fastening is at the edge middle part of underframe, the activity post below is equipped with interior cylinder, the inside interior pinhole that opens there is linear array to distribute of interior cylinder, it has the knock-pin hole to open in the activity post.

Preferably, the upper end of the frame upright post is provided with an outer pin hole, the inner pin hole and the outer pin hole are internally inserted with connecting pins, the beam pin holes distributed at equal intervals are arranged in the cross beam, and the other connecting pin is inserted in the top pin hole and the beam pin hole in the cross beam.

Preferably, two clamping shafts are fixedly inserted into one end of the cross beam, a spool is fixedly inserted into the other end of the cross beam, clamping wheels which are connected in a rotating mode are sleeved outside the clamping shafts, a worm gear which is connected in a rotating mode is sleeved outside the spool, the outline of the worm gear is in a belt wheel shape, a lifting rope is arranged in a groove in the worm gear, and the lifting rope pulled out of the interior of the worm gear penetrates through the two clamping wheels and is connected with the workpiece clamping assembly.

Preferably, a worm is arranged in the cross beam adjacent to the worm gear, teeth are arranged on the excircle of the worm gear, the teeth on the excircle of the worm gear are meshed with the worm, a rod end shaft is inserted into the worm, hexagonal sleeves are sleeved at two ends of the rod end shaft, and the hexagonal sleeves are connected with the rod end shaft through sleeve shafts which penetrate through the hexagonal sleeves in the axial direction.

Preferably, the hanging frame comprises four vertical end clamping columns, four horizontal first horizontal shafts and four horizontal second horizontal shafts, two ends of each second horizontal shaft are inserted and fixed inside the end clamping column, two ends of each first horizontal shaft are inserted inside the end clamping columns, the first horizontal shafts are connected with the end clamping columns in a sliding mode, two column jacking wires are screwed inside the end clamping columns, and the column jacking wires tightly jack the adjacent first horizontal shafts.

Preferably, the lifting claw comprises a claw seat, the sheet structure of the claw seat is rotatably connected with the upper claw part through a claw shaft, a claw jacking screw is screwed inside the upper end of the upper claw part, the lower end of the upper claw part is connected with the lower claw part through a claw adjusting screw, and the claw adjusting screw penetrates through a through hole in the lower end of the upper claw part and enters a threaded hole in the lower claw part.

Preferably, two channels with circular outlines are arranged in the claw seat, the second horizontal shaft of the hanging frame is positioned in the circular channel in the claw seat, and seat fixing screws are arranged in the through hole and the threaded hole in the middle of the claw seat.

Preferably, the lifting claws are accessories of a lifting frame, the number of the lifting claws arranged on the lifting frame includes, but is not limited to, four, and the number of the lifting claws is increased or decreased as required.

Preferably, one end of the lifting rope pulled out from the cross beam is dispersed into four branch lines, and the branch lines are fixed in the through holes at the end part of the first horizontal shaft of the lifting frame.

The invention has the technical effects and advantages that: according to the workpiece loading and unloading equipment for the CNC machine tool, a workpiece is fixed through the workpiece clamping device, the workpiece and the workpiece clamping and fixing device are lifted through the hoisting assembly, so that the workpiece is lifted, the required rotation space is small due to the fact that the size of the hoisting assembly is small, the unloading of the workpiece can be completed by the method before the CNC machine tool with the small space, the loading of the workpiece can also be completed by the method, the installation and unloading of the workpiece with the large weight on the CNC machine tool can be completed through the equipment, and the equipment is suitable for being popularized and used;

the lifting rope is tightened by matching the worm with the worm wheel, the hexagonal sleeve is rotated by the wrench, the rod end shaft can be driven, and the worm is driven to rotate, the structure is a labor-saving structure, a workpiece can be lifted by small force, the transmission scheme of the worm and the worm wheel is irreversible, the use of self-locking equipment is avoided, and the reduction of the complexity of the whole structure is facilitated;

the hoisting center of gravity is coincident with the center of the bottom frame, the low frame slides into a gap at the bottom of the CNC machine tool, and the workpiece hoisted by the method has good hoisting stability;

the lifting claws of the workpiece clamping assembly can hook the edge of a workpiece in a top claw screw tightening mode, the distance between the lifting claws can be adjusted through the lifting frame, the workpiece clamping assembly can adapt to various dies with different sizes and rectangular outlines, and the distance between the upper part of the claw and the lower part of the claw can be adjusted to adapt to workpieces with different heights.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the underside structure of the hoisting assembly of the present invention;

FIG. 3 is a schematic structural diagram of a combined part of a frame column and a movable column of the present invention;

FIG. 4 is a schematic view of the internal structure of the cross beam of the present invention;

FIG. 5 is a schematic view of a workpiece clamping assembly of the present invention;

FIG. 6 is a schematic view of an end post structure of the present invention;

FIG. 7 is a schematic view of the construction of the lifting claw of the present invention;

fig. 8 is a schematic structural view of the present invention with the lifting claws separated.

In the figure: 1. a bottom frame; 101. a frame inner bin; 102. a weight reduction groove; 2. a universal roller; 3. a frame upright post; 301. An outer pin hole; 4. a connecting pin; 5. a movable post; 501. an inner cylinder; 502. an inner pin hole; 503. a knock pin hole; 6. a cross beam; 601. a beam pin hole; 7. a clamp shaft; 8. a pinch roller; 9. a bobbin; 10. a worm-wheel; 11. a lifting rope; 12. a worm; 13. a rod end shaft; 14. a hexagonal sleeve; 15. a sleeve shaft; 16. hanging a frame; 1601. a first horizontal axis; 1602. an end clamp post; 1603. a post top thread; 1604. a second horizontal axis; 17. a lifting claw; 1701. A claw seat; 1702. an upper claw portion; 1703. a lower part of the claw; 1704. a claw shaft; 1705. a jack screw; 1706. A claw adjusting screw; 1707. the seat fixes the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a workpiece handling device for a CNC machine tool comprises a workpiece clamping component and a hoisting component, wherein the workpiece clamping component comprises a hoisting frame 16 and a hoisting claw 17, the hoisting component comprises a bottom frame 1 positioned at the bottom and a vertical frame upright post 3 vertically fixed in the middle of one end of the bottom frame, a movable post 5 is arranged inside the frame upright post 3, a cross beam 6 is arranged inside the movable post 5, the workpiece clamping component and the hoisting component are connected through a hoisting rope 11 pulled out from the cross beam 6, the outline of the bottom frame 1 is in a rectangular frame shape, an inner frame bin 101 is arranged at the lower end of the bottom frame 1, a weight reducing groove 102 is formed in the upper surface of the bottom frame 1, a plurality of universal rollers 2 are arranged inside the bottom frame 1, the universal rollers 2 can be observed through the weight reducing groove 102, the frame upright post 3 is welded and fixed in the middle of the edge of the bottom frame 1, an inner cylinder 501 is arranged below the movable post 5, and the relative position of the inner cylinder 501 and the frame upright post 3 determines the height of the cross beam 6, inner pin holes 502 distributed in a linear array are formed in the inner cylinder 501, top pin holes 503 are formed in the movable column 5, the lifting claws 17 are accessories of the lifting frame 16, and the number of the lifting claws 17 arranged on the lifting frame 16 includes but is not limited to four;

the number of the lifting claws 17 is increased or decreased as required, and one end of the lifting rope 11 pulled out from the cross beam 6 is divided into four branch lines, and the branch lines are fixed in through holes at the end part of the first horizontal shaft 1601 of the lifting frame 16.

Referring to fig. 3-4, the upper end of the frame upright post 3 is provided with an outer pin hole 301, connecting pins 4 are inserted into the outer pin hole 301 and the inner pin hole 502, beam pin holes 601 are equidistantly distributed in the cross beam 6, another connecting pin 4 is inserted into the top pin hole 503 and the beam pin hole 601 in the cross beam 6, one end of the cross beam 6 is fixedly inserted into two clamping shafts 7, the other end of the cross beam 6 is fixedly inserted into a spool 9, the clamping shafts 7 are respectively sleeved with rotatably connected clamping wheels 8, the centers of the outer circles of the two clamping wheels 8 are respectively provided with a groove for accommodating a lifting rope 11, the outside of the spool 9 is sleeved with a rotatably connected worm gear 10, the profile of the worm gear 10 is in a pulley shape, the groove in the worm gear 10 is provided with the lifting rope 11, the lifting rope 11 pulled out from the inside of the worm gear 10 passes through the two clamping wheels 8 and is connected with a workpiece clamping component, the cross beam 6 adjacent to the worm gear 10 is provided with a worm 12, the outer circle of the worm gear 10 is provided with teeth, the tooth on the excircle of worm wheel 10 meshes with worm 12, the cooperation of worm 12 and worm wheel 10 is worm and worm wheel cooperation structure, and the inside pole end axle 13 that is equipped with of worm 12 inserts, and the both ends of pole end axle 13 all are equipped with hexagonal cover 14, and hexagonal cover 14 is connected with pole end axle 13 through the sleeve 15 that runs through its axial, and the profile of hexagonal cover 14 corresponds with the opening profile of spanner.

Referring to fig. 5-6, the hanging frame 16 includes four vertical end clamping posts 1602, four horizontal first horizontal shafts 1601 and four horizontal second horizontal shafts 1604, the both ends of second horizontal shaft 1604 are inserted and are established and fix inside end clamping posts 1602, the both ends of first horizontal shaft 1601 are inserted inside end clamping posts 1602, first horizontal shaft 1601 and end clamping posts 1602 sliding connection, two post-top wires 1603 have all been screwed inside end clamping posts 1602, its adjacent first horizontal shaft 1601 is tightly supported on post-top wire 1603, the tip of two post-top wires 1603 is opened slottedly, the inslot is equipped with the rubber piece, the rubber piece of post-top wire 1603 tip is to first horizontal shaft 1601.

Referring to fig. 5-8, the hanging claw 17 includes a claw seat 1701, the sheet structure of the claw seat 1701 is rotatably connected with the claw upper portion 1702 through a claw shaft 1704, a claw-jacking screw 1705 is screwed into the upper end of the claw upper portion 1702, the claw-jacking screw 1705 determines the angle of the integrated structure formed by the claw upper portion 1702, the claw lower portion 1703 and a claw adjusting screw 1706, the lower end of the claw upper portion 1702 is connected with the claw lower portion 1703 through a claw adjusting screw 1706, the claw adjusting screw 1706 passes through a through hole at the lower end of the claw upper portion 1702 and enters a threaded hole in the claw lower portion 1703, two channels with circular contour are arranged in the claw seat 1701, a second horizontal shaft 1604 of the hanging frame 16 is positioned in the circular channel in the claw seat 1701, a seat fixing screw 7 is arranged in the through hole and the threaded hole in the middle of the claw seat 1701, and the hanging claw 17 hooks the workpiece through the convex portion of the claw lower portion 1703.

The working principle of the workpiece loading and unloading device for the CNC machine tool is that when a workpiece is unloaded, the bottom frame 1 is pushed to push the bottom frame 1 into a gap below the CNC machine tool, the workpiece clamping component is moved to be right above the workpiece on a workbench of the machine tool, the column top wire 1603 is loosened to adjust the distance between two pairs of second horizontal shafts 1604, the seat fixing screw 1707 is loosened to adjust the distance between the lifting claws 17 on the second horizontal shafts 1604, then the two distances are adjusted to the degree suitable for the workpiece, the lower edge of the claw lower part 1703 is buckled with the lower edge of the workpiece, when the workpiece with larger thickness faces, the claw adjusting screw 1706 can be disassembled to adjust the distance between the claw upper part 1702 and the claw lower part 1703, and therefore the lifting claws 17 are suitable for workpieces with different thicknesses;

the distance between the two pairs of second horizontal shafts 1604 is reduced to enable the lower edges of the claw lower portions 1703 to buckle the lower edges of the workpieces, the column jacking screws 1603 are screwed to lock the positions of the two pairs of second horizontal shafts 1604, the jacking claw screws 1705 are screwed to jack the claw upper portions 1702 and the claw lower portions 1703 towards the workpieces, the end shafts 13 are turned through the wrench, the worm 12 is driven by the end shafts 13 to rotate to drive the worm gear 10 to rotate, the worm gear 10 rotates to tighten the lifting ropes 11 to lift the workpiece clamping assembly and the workpieces together, and then the lifting assembly is moved to lift the workpieces off a workbench of the CNC machine tool;

different inner pin holes 502 face the outer pin holes 301 to determine the height of the movable column 5, the height position of the cross beam 6 in the movable column 5 is changed accordingly, the gravity center position of the hoisting assembly is changed accordingly when the connecting pin 4 in the movable column 5 is located in different beam pin holes 601, and the gravity center of the hoisting assembly is adjusted to enable the hoisting state of the workpiece to be more stable.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.