CN218136362U

CN218136362U - Workpiece steering mechanism of numerical control machine tool

Info

Publication number: CN218136362U
Application number: CN202221893937.2U
Authority: CN
Inventors: 贾晶晶
Original assignee: Jiangsu Zhiwei Cnc Equipment Co ltd
Current assignee: Jiangsu Zhiwei Cnc Equipment Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-27
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a workpiece steering mechanism of a numerical control machine tool, which comprises a frame and a horizontally arranged base which is vertically arranged and fixedly connected with the frame, wherein an X-direction Y-direction Z-direction driving motor and a lead screw nut mechanism are respectively arranged on the frame and the base to realize the vertical linear motion of a machine tool cutter and the clamping and horizontal linear motion of a workpiece to be processed; the upper surface of the X-direction seat plate is provided with a lifting plate driven by a fourth screw nut mechanism, a speed reducing motor is fixedly arranged on the lifting plate, an output shaft of the speed reducing motor is fixedly connected with a stepped disc-shaped turntable, and the stepped disc-shaped turntable is located below a workpiece to be processed and is gradually increased in size from top to bottom. The utility model discloses a setting of ladder disc carousel can be more accurate when needs the work piece to turn to especially have the steering angle requirement.

Description

Workpiece steering mechanism of numerical control machine tool

Technical Field

The utility model relates to a digit control machine tool work piece steering mechanism.

Background

The numerical control machine tool is a short name of a digital control machine tool (Computer numerical control machine tools), and is an automatic machine tool provided with a program control system. The control system is capable of logically processing and decoding a program defined by a control code or other symbolic instructions, represented by coded numbers, which are input to the numerical control device via the information carrier. After operation, the numerical control device sends out various control signals to control the action of the machine tool, and the parts are automatically machined according to the shape and size required by the 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. However, the existing numerical control machine tool basically processes one surface of a workpiece, if other surfaces of the workpiece need to be processed, the workpiece needs to be manually rotated, so that the labor intensity is increased, and in addition, when a circular body is encountered or the workpiece needs to be rotated by a certain angle instead of the angle of 90 degrees or 180 degrees, the workpiece is difficult to accurately turn to the required angle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a digit control machine tool work piece steering mechanism, through the setting of ladder disc carousel, can turn to especially can be more accurate when having the steering angle requirement at needs work piece.

In order to achieve the purpose, the technical scheme of the utility model is to design a workpiece steering mechanism of a numerical control machine tool, which comprises a frame, a horizontally arranged base which is vertically arranged with the frame and is fixedly connected with the frame, and a Z-axis sliding plate which is vertically arranged on the frame in a sliding manner, wherein the sliding plate is driven by a Z-direction driving motor which is fixedly arranged on the frame and a first lead screw nut mechanism which is connected with an output shaft of the Z-direction driving motor and vertically slides; a cutter motor is fixedly arranged on the Z-axis sliding plate, and an output shaft of the cutter motor is fixedly connected with a cutter for workpiece processing;

a Y-direction driving motor and a second lead screw nut mechanism connected with an output shaft of the Y-direction driving motor are fixedly arranged on the base, a nut of the second lead screw nut mechanism is fixedly connected with a sliding block, the sliding block horizontally slides along the Y direction, the upper end surface of the sliding block is fixedly connected with an X-direction seat plate, an X-direction driving motor is fixedly arranged on the X-direction seat plate, an output shaft of the X-direction driving motor is connected with a third lead screw nut mechanism, a nut of the third lead screw nut mechanism is fixedly connected with a pressing plate which slides along the X direction and is used for clamping a workpiece to be processed, and a baffle plate opposite to the pressing plate is arranged on the X-direction seat plate; the X direction is vertical to the Y direction, both the X direction and the Y direction are horizontal directions, and the Z direction is a vertical direction;

the upper surface of the X-direction seat plate is provided with a lifting plate driven by a fourth screw nut mechanism, a speed reducing motor is fixedly arranged on the lifting plate, an output shaft of the speed reducing motor is fixedly connected with a stepped disc-shaped turntable, the stepped disc-shaped turntable is positioned below a workpiece to be processed, and the size of the stepped disc-shaped turntable is gradually increased from top to bottom; the lower end face of the pressing plate is spaced from the upper surface of the X-direction seat plate. After setting up like this, through the setting of ladder discoid carousel, can turn to especially can be more accurate when having the angle requirement when needing the work piece, because only need when rotating according to gear motor's feedback or on-the-spot according to workman's measurement, can learn ladder discoid carousel pivoted angle (can reach required turned angle very conveniently like this), rotate to pushing down the work piece through propping up of clamp plate after the angle that needs again, realize the work piece and turn to the clamp after (or turned angle) tight, carry out the processing of other faces of work piece.

The further technical scheme is that the workpiece to be processed is positioned between the pressing plate and the baffle.

The further technical scheme is that the distance between the edge of the disk with the largest size at the lowest part of the stepped disk-shaped rotating disk and the baffle plate is larger than zero millimeter and smaller than two millimeters.

The technical scheme is that a screw rod of the third screw rod nut mechanism is a double-end left-right-handed screw rod, two sections of circumferential surfaces close to two ends of the screw rod are respectively provided with a left-handed external thread and a right-handed external thread, the two sections of the screw rod are respectively in threaded connection with a nut, the nut is fixedly connected with a pressing plate, and a workpiece to be processed is placed between the two pressing plates; the baffle is the locating part that is used for blockking the clamp plate. After the arrangement, a screw nut mechanism, namely a third screw nut mechanism, can move oppositely to clamp a workpiece to be processed, the clamping process is rapid, the efficiency is improved, and the stepped disc-shaped turntable can be arranged at the center of the distance between the two press plates through the arrangement of the double-head left-right rotating screw.

The further technical proposal is that the step disk-shaped turntable is positioned at the central position of the X-direction seat plate.

The further technical scheme is that the cutter for processing the workpiece is a drill bit or a milling cutter or a turning tool.

The utility model has the advantages and the beneficial effects that: through the arrangement of the stepped disc-shaped rotating disc, the workpiece can be more accurately turned when the workpiece is required, particularly when the turning angle is required. Because only need when rotating according to gear motor's feedback or on-the-spot according to workman's measurement, can learn ladder discoid carousel pivoted angle (can reach required turned angle very conveniently like this), rotate to pushing down the work piece through propping of the clamp plate behind the required angle again, realize the work piece and turn to the clamp of (or turned angle) back tight, carry out the processing of other faces of work piece.

The screw nut mechanism can realize the opposite movement of the two pressing plates to clamp a workpiece to be processed, the clamping process is rapid, the efficiency is improved, and the stepped disc-shaped turntable can be arranged at the central position of the distance between the two pressing plates through the arrangement of the double-head left-right rotating screw rod.

Drawings

Fig. 1 is a schematic view of a workpiece steering mechanism of a numerical control machine tool according to the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic diagram of a cross-section through the center of the Y-drive motor of FIG. 1;

FIG. 4 is a top view of the baffle portion of FIG. 1;

FIG. 5 is a bottom view of the stepped turntable of FIG. 4;

FIG. 6 is an exploded view of the fourth lead screw nut mechanism and stepped turntable of FIG. 5;

fig. 7 is an enlarged schematic view of the stepped turntable of fig. 4.

In the figure: 1. a frame; 2. a base; 3. a slide plate; 4. a Z-direction driving motor; 5. a first lead screw nut mechanism; 6. a tool for machining a workpiece; 7. a Y-direction driving motor; 8. a second lead screw nut mechanism; 9. an X-direction seat plate; 10. an X-direction driving motor; 11. a third lead screw nut mechanism; 12. pressing a plate; 13. a baffle plate; 14. a lifting plate; 15. a reduction motor; 16. a stepped disk-shaped turntable; 17. an angle identification layer; 18. an air bag; 19. a guide rod.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 7 (for convenience of illustration, an angle marking layer is not shown in fig. 4), the present invention is a workpiece steering mechanism for a numerical control machine, including a frame 1, a horizontally disposed base 2 vertically disposed and fixedly connected to the frame 1, a Z-axis slide plate 3 vertically slidably disposed on the frame 1, the slide plate 3 vertically slidably driven by a Z-direction driving motor 4 fixedly disposed on the frame 1 and a first lead screw nut mechanism 5 connected to an output shaft of the Z-direction driving motor 4 (a guide rod 19 is disposed to ensure vertical sliding of the Z-axis slide plate 3, which is prior art and is not repeated); a cutter motor is fixedly arranged on the Z-axis sliding plate 3, and an output shaft of the cutter motor is fixedly connected with a cutter 6 for workpiece processing; a Y-direction driving motor 7 and a second lead screw nut mechanism 8 connected with an output shaft of the Y-direction driving motor 7 are fixedly arranged on the base 2, a sliding block is fixedly connected to a nut of the second lead screw nut mechanism 8, the sliding block horizontally slides along the Y direction, an X-direction seat plate 9 is fixedly connected to the upper end surface of the sliding block, an X-direction driving motor 10 is fixedly arranged on the X-direction seat plate 9, an output shaft of the X-direction driving motor 10 is connected with a third lead screw nut mechanism 11, a pressing plate 12 which slides along the X direction and is used for clamping a workpiece to be processed is fixedly connected to a nut of the third lead screw nut mechanism 11 (the pressing plate slides along the X direction, two guide rods 19 are arranged on the X-direction seat plate, the pressing plate is connected with a guide rod sliding sleeve, a through hole matched with the guide rod is formed in the pressing plate, the prior art is omitted), and a baffle plate 13 opposite to the pressing plate 12 is arranged on the X-direction seat plate 9; the X direction is vertical to the Y direction, both the X direction and the Y direction are horizontal directions, and the Z direction is a vertical direction; the upper surface of the X-direction seat plate 9 is provided with a lifting plate 14 driven by a fourth screw-nut mechanism, a speed reducing motor 15 is fixedly arranged on the lifting plate 14, an output shaft of the speed reducing motor 15 is fixedly connected with a stepped disk-shaped turntable 16, the stepped disk-shaped turntable 16 is positioned below a workpiece to be processed, and the size of the stepped disk-shaped turntable 16 is gradually increased from top to bottom; the lower end surface of the pressing plate 12 is spaced from the upper surface of the X-direction seat plate 9. The distance between the edge of the lowest largest-sized disk of the stepped disk-shaped rotating disk 16 and the baffle 13 is more than zero mm and less than two mm. And each disk surface of the stepped turntable is provided with an angle identification layer 17 similar to a protractor, so that the rotation angle of the workpiece to be machined can be conveniently determined, and the workpiece with the rotation angle requirement can be accurately rotated to the corresponding plane for machining. In addition, the air bags 18 are fixedly connected to one surface of the pressing plate 12 facing the workpiece (or the air bags 18 are fixedly connected to both the surface of the pressing plate 12 facing the workpiece and the surface of the baffle 13 facing the workpiece), so that the clamping stability can be ensured by the contact of the air bags 18 after the workpiece rotates for a certain angle. A screw of the third screw nut mechanism 11 is a double-end left-right-handed screw, left-handed external threads and right-handed external threads are respectively arranged on the circumferential surfaces of two sections close to the two ends of the screw, a nut is respectively connected to the two sections of the screw in a threaded manner, a pressing plate 12 is fixedly connected to the nut, and a workpiece to be processed is placed between the two pressing plates 12; the baffle 13 is a stopper for stopping the pressing plate 12. The stepped disk shaped turntable 16 is located at the center of the X-direction base plate 9. The tool 6 for machining a workpiece is a drill, a milling cutter or a turning tool.

The working principle is as follows:

the Y-direction driving motor acts, the X-direction seat plate is pushed to the position below a tool for machining the workpiece through the lead screw nut mechanism, the X-direction driving motor acts, the third lead screw nut mechanism acts to drive the two pressing plates to move oppositely to clamp the workpiece, then the Z-direction driving motor acts, the Z-axis sliding plate moves downwards through the first lead screw nut mechanism, the Z-axis sliding plate is driven to move downwards, and the tool motor starts to machine the workpiece. After one surface of a workpiece is processed, the lifting plate rises (the lifting plate is at the lowest position when the workpiece is just started) until the uppermost disk surface of the stepped disk-shaped turntable is abutted to the lower end surface of the workpiece, then the X-direction driving motor appropriately and reversely acts to ensure that the two pressing plates do not tightly clamp the workpiece any more, then the speed reducing motor acts to drive the stepped disk-shaped turntable to rotate, so that the workpiece is driven to rotate, the steering is realized (especially, the conventional rotation angle requirement of 90 degrees or 180 degrees is not met when the special angle requirement exists), and then the X-direction driving motor is driven to rotate forwardly to realize the clamping of the steered workpiece.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A workpiece steering mechanism of a numerical control machine tool is characterized by comprising a rack and a horizontally arranged base which is vertically arranged with the rack and is fixedly connected with the rack, wherein a Z-axis sliding plate is vertically arranged on the rack in a sliding manner, and the sliding plate is driven by a Z-direction driving motor fixedly arranged on the rack and a first lead screw nut mechanism connected with an output shaft of the Z-direction driving motor to vertically slide; a cutter motor is fixedly arranged on the Z-axis sliding plate, and an output shaft of the cutter motor is fixedly connected with a cutter for workpiece processing;

the upper surface of the X-direction seat plate is provided with a lifting plate driven by a fourth screw nut mechanism, a speed reducing motor is fixedly arranged on the lifting plate, an output shaft of the speed reducing motor is fixedly connected with a stepped disc-shaped turntable, the stepped disc-shaped turntable is positioned below a workpiece to be processed, and the size of the stepped disc-shaped turntable is gradually increased from top to bottom; the lower end face of the pressing plate is spaced from the upper surface of the X-direction seat plate.

2. The numerical control machine tool workpiece steering mechanism according to claim 1, wherein the workpiece to be machined is located between the pressing plate and the baffle plate.

3. The numerical control machine tool workpiece steering mechanism according to claim 2, wherein the distance between the edge of the lowest largest-sized disk of the stepped disk-shaped turntable and the baffle is greater than zero mm and less than two mm.

4. The numerical control machine tool workpiece steering mechanism according to claim 1, wherein the lead screw of the third lead screw nut mechanism is a double-head left-right-handed lead screw, the circumferential surfaces of two sections close to two ends of the lead screw are respectively provided with a left-handed external thread and a right-handed external thread, two sections of the lead screw are respectively in threaded connection with a nut, the nut is fixedly connected with a pressing plate, and the workpiece to be machined is arranged between the two pressing plates; the baffle is the locating part that is used for blockking the clamp plate.

5. The numerical control machine tool workpiece steering mechanism according to claim 4, wherein the stepped disc-shaped turntable is located at the center of the X-direction base plate.

6. A numerically controlled machine tool workpiece steering mechanism according to claim 3 or 5, wherein the workpiece machining tool is a drill bit or a milling cutter or a turning tool.