Flexible intelligent precision transmission device of numerical control machine tool

Abstract

The invention relates to the technical field of numerically-controlled machine tools, in particular to a numerically-controlled machine tool flexible intelligent precision transmission device which comprises a machine table, a flexible transmission mechanism and a cutting mechanism are arranged at the upper end of the machine table, the flexible transmission mechanism comprises a square shell, and the square shell is slidably mounted above the machine table through a translation mechanism; carrier plates are symmetrically attached to the upper end of the square shell, driving mechanisms are arranged between the two carrier plates and the square shell, and the upper ends of the two carrier plates are each provided with a shape taking mechanism. When the irregular rod-shaped metal piece is cut by the numerical control shearing machine tool, the irregular rod-shaped metal piece is subjected to shape taking through the shape taking mechanism, then the irregular rod-shaped metal piece is subjected to adaptive stable clamping, and finally the irregular rod-shaped metal piece is conveyed to the cutting mechanism to be cut. In the face of stable clamping of different irregular rod-shaped metal pieces, multiple sets of clamps are not needed or corresponding clamps do not need to be customized frequently, so that convenience is brought, and the cutting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, and in particular to a flexible intelligent precision transmission device for numerically controlled machine tools. Background Art

[0002] CNC machine tools are automated machine tools equipped with a program control system. There are many types of CNC machine tools, including CNC machine tools that can shear metal materials. CNC shearing machines generally cut metal materials through a disc knife that can rotate at high speed, and CNC shearing machines are equipped with a fixture that can not only clamp metal materials, but also a transmission device for conveying metal materials. That is, after the fixture clamps the metal material, it can convey the metal material to the disc knife through the transmission device to facilitate cutting of the metal material.

[0003] However, when some rod-shaped metal parts are cut to the required length, if the rod-shaped metal parts are not a regular circle or square, etc., and have concave and convex parts or curved parts on the outside, resulting in irregular shapes, this will increase the difficulty of firmly clamping the rod-shaped metal parts. Different irregular rod-shaped metal parts are different, and often require multiple sets of fixtures or frequent customization of corresponding fixtures to firmly clamp irregular rod-shaped metal parts, which is troublesome and affects cutting efficiency. To this end, we propose a flexible intelligent precision transmission device for CNC machine tools. Summary of the invention

[0004] The purpose of the present invention is to provide a flexible intelligent precision transmission device for a CNC machine tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A flexible intelligent precision transmission device for a CNC machine tool, comprising a machine platform, wherein a flexible transmission mechanism and a cutting mechanism are respectively provided at the upper end of the machine platform; The flexible transmission mechanism includes a square shell, which is slidably mounted above the machine platform through a translation mechanism, and a carrier plate is symmetrically attached to the upper end of the square shell, a driving mechanism is provided between the two carrier plates and the square shell, and a shaping mechanism is provided at the upper ends of the two carrier plates, and a supporting mechanism is provided between the middle part of the upper end of the square shell and the machine platform; The shaping mechanism includes a connecting plate, which is fixedly connected to the upper end of the carrier plate, and the inner wall of the connecting plate is slidably interspersed with four groups of shaping columns from top to bottom, an elastic component is provided between each of the shaping columns and the connecting plate, and a locking mechanism is provided between the four groups of shaping columns and the carrier plate.

[0006] Preferably, the cutting mechanism includes two screw slides, which are symmetrically fixedly installed on the upper end of the machine platform away from the square shell, and frames are fixedly installed on the work tables of the two screw slides, a support frame is fixedly connected between the two frames, an electric motor is fixedly installed on the inner side of the support frame, and a disc-shaped blade is fixedly connected to the output shaft end of the motor.

[0007] Preferably, the translation mechanism comprises a groove, the groove is provided in the middle of the upper end of the machine platform, and an electric slide is fixedly mounted on the concave surface of the groove, and the working table of the electric slide is fixedly connected to the lower end of the square shell.

[0008] Preferably, the driving mechanism includes a bidirectional screw and an intelligent servo motor, the bidirectional screw is rotatably connected to the inner wall of the square shell, the intelligent servo motor is fixedly installed on one side wall of the square shell, and the output shaft end of the intelligent servo motor is fixedly connected to one end of the bidirectional screw, the outer wall of the bidirectional screw is symmetrically threaded with sliders, the two sliders are both fitted inside the square shell, and the upper ends of the two sliders are respectively fixedly connected to the lower ends of the two carrier plates.

[0009] Preferably, the supporting mechanism includes a supporting plate, which is fixedly connected to the middle part of the upper end of the square shell, and connecting rods are fixedly connected to both sides of the supporting plate, and two ends of the connecting rods away from the supporting plate are fixedly connected to slides, and guide columns are movably penetrated through the inner walls of the two slides, one end of the two guide columns is respectively fixedly connected to the wall surface of the square shell corresponding to the two screw slides, and a U-shaped seat is fixedly connected between the other ends of the two guide columns and the upper end of the machine.

[0010] Preferably, the elastic component includes a connecting ring, which is fixedly sleeved on the outer wall of the shaping column near the connecting plate, and a second spring is fixedly connected between the connecting ring and the connecting plate, and the second spring is slidably sleeved on the outer wall of the shaping column.

[0011] Preferably, the locking mechanism includes a fixed plate and two supporting columns, the fixed plate sliding sleeve is arranged on the outer walls of the four groups of shape-taking columns away from the connecting plate, and the lower end of the fixed plate is fixedly connected to the upper end of the carrier plate, the two supporting columns are respectively fixedly connected to two corners of the upper end of the carrier plate close to the fixed plate, and six clamps are commonly slidably sleeved on the outer walls of the two supporting columns, the six clamps and the four groups of shape-taking columns are staggered, two adjacent clamps are symmetrically arranged, and springs 1 are symmetrically fixedly connected between two adjacent clamps, three of the springs 1 and the other three springs 1 are respectively slidably sleeved on the outer walls of the two supporting columns, the wall surfaces of the six clamps close to the shape-taking columns are provided with a plurality of arc grooves, and a pushing mechanism is provided between the six clamps and the fixed plate.

[0012] Preferably, the pushing mechanism includes a fixed block and a plurality of triangular blocks, the fixed block is fixedly connected to the upper edge of the side wall of the fixed plate away from the connecting plate, and both ends of the fixed block are fixedly connected to electric push rods, the telescopic shaft ends of the two electric push rods are fixedly connected to splicing plates, and the corresponding wall surfaces of the two splicing plates are fixedly connected with three pushing frames from top to bottom, the plurality of triangular blocks are respectively fixedly connected to the two ends of the six plywood, and the two adjacent triangular blocks are symmetrically arranged, and the six pushing frames are respectively fitted between two adjacent triangular blocks.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation of the flexible transmission mechanism, translation mechanism, carrier plate, driving mechanism, shaping mechanism, supporting mechanism, elastic component, locking mechanism, pushing mechanism and cutting mechanism, the CNC shearing machine cuts irregular rod-shaped metal parts by shaping them through the shaping mechanism, and then adaptively and firmly clamps the irregular rod-shaped metal parts, and finally sends the irregular rod-shaped metal parts to the cutting mechanism for cutting.

[0014] 2. When facing the stable clamping of different irregular rod-shaped metal parts, there is no need to use multiple sets of clamps or frequently customize corresponding clamps, which brings convenience and improves cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified view of the structure at center; Figure 3 It is a structural schematic diagram of the square shell of the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure at B in the middle; Figure 5 It is a structural schematic diagram of the carrier plate of the present invention; Figure 6 It is a display diagram of the carrier plate, support column, clamping plate, triangular block and arc groove of the present invention; Figure 7 It is a display diagram of the splicing plate, the fixing block, the electric push rod and the pushing frame of the present invention; Figure 8 It is a display diagram of the cutting mechanism of the present invention.

[0016] In the accompanying drawings, the list of components represented by each number is as follows: 1. Support plate; 2. Connecting rod; 3. Motor; 4. Support frame; 5. Frame; 6. Screw slide; 7. Electric slide; 8. Groove; 9. Guide column; 10. Square shell; 11. Intelligent servo motor; 12. Machine; 13. Slide plate; 14. U-shaped seat; 15. Bidirectional screw; 16. Carrier plate; 17. Slider; 18. Splicing plate; 19. Fixed plate; 20. Connecting plate; 21. Shape column; 22. Fixed block; 23. Electric push rod; 24. Support column; 25. Clamp; 26. Triangle block; 27. Push frame; 28. Spring 1; 29. ​​Connecting ring; 30. Spring 2; 31. Arc groove; 32. Disc-shaped blade. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention provides a technical solution: Figure 1 - Figure 8 A flexible intelligent precision transmission device for a CNC machine tool shown includes a machine platform 12, and a flexible transmission mechanism and a cutting mechanism are respectively provided at the upper end of the machine platform 12; The flexible transmission mechanism includes a square shell 10, which is slidably mounted on the top of the machine table 12 through a translation mechanism, and a carrier plate 16 is symmetrically attached to the upper end of the square shell 10, a driving mechanism is provided between the two carrier plates 16 and the square shell 10, and a shaping mechanism is provided at the upper ends of the two carrier plates 16, and a supporting mechanism is provided between the middle part of the upper end of the square shell 10 and the machine table 12; The shaping mechanism includes a connecting plate 20, which is fixedly connected to the upper end of the carrier plate 16, and the inner wall of the connecting plate 20 is slidably interspersed with four groups of shaping columns 21 from top to bottom. An elastic component is provided between each shaping column 21 and the connecting plate 20, and a locking mechanism is provided between the four groups of shaping columns 21 and the carrier plate 16.

[0019] The cutting mechanism includes two screw slides 6, which are symmetrically fixedly installed on the upper end of the machine table 12 away from the square shell 10, and frames 5 are fixedly installed on the workbenches of the two screw slides 6. A support frame 4 is fixedly connected between the two frames 5, and a motor 3 is fixedly installed on the inner side of the support frame 4. A disc-shaped blade 32 is fixedly connected to the output shaft end of the motor 3.

[0020] The translation mechanism includes a groove 8 , which is opened in the middle of the upper end of the machine platform 12 , and an electric slide 7 is fixedly installed on the concave surface of the groove 8 , and the working table of the electric slide 7 is fixedly connected to the lower end of the square shell 10 .

[0021] The driving mechanism includes a bidirectional screw rod 15 and an intelligent servo motor 11. The bidirectional screw rod 15 is rotatably connected to the inner wall of the square shell 10. The intelligent servo motor 11 is fixedly installed on one side wall of the square shell 10, and the output shaft end of the intelligent servo motor 11 is fixedly connected to one end of the bidirectional screw rod 15. The outer wall of the bidirectional screw rod 15 is symmetrically threaded with a slider 17. The two sliders 17 are both fitted inside the square shell 10, and the upper ends of the two sliders 17 are respectively fixedly connected to the lower ends of the two carrier plates 16.

[0022] The supporting mechanism includes a supporting plate 1, which is fixedly connected to the middle of the upper end of the square shell 10, and connecting rods 2 are fixedly connected to both sides of the supporting plate 1, and the ends of the two connecting rods 2 away from the supporting plate 1 are fixedly connected to slide plates 13, and the inner walls of the two slide plates 13 are movably penetrated by guide columns 9, one ends of the two guide columns 9 are respectively fixedly connected to the wall surfaces of the square shell 10 corresponding to the two screw slides 6, and the other ends of the two guide columns 9 are fixedly connected to the upper end of the machine table 12 with U-shaped seats 14.

[0023] The elastic component includes a connecting ring 29, which is fixedly sleeved on the outer wall of the shaping column 21 near the connecting plate 20, and a spring 2 30 is fixedly connected between the connecting ring 29 and the connecting plate 20, and the spring 2 30 is slidably sleeved on the outer wall of the shaping column 21.

[0024] The locking mechanism includes a fixed plate 19 and two supporting columns 24. The fixed plate 19 is slidably sleeved on the outer walls of the four groups of shaping columns 21 away from the connecting plate 20, and the lower end of the fixed plate 19 is fixedly connected to the upper end of the carrier plate 16. The two supporting columns 24 are respectively fixedly connected to the two corners of the upper end of the carrier plate 16 close to the fixed plate 19, and six clamps 25 are slidably sleeved on the outer walls of the two supporting columns 24. The six clamps 25 are staggered with the four groups of shaping columns 21, and the two adjacent clamps 25 are symmetrically arranged, and springs 28 are symmetrically fixedly connected between the two adjacent clamps 25, among which three springs 28 and the other three springs 28 are respectively slidably sleeved on the outer walls of the two supporting columns 24, and the wall surfaces of the six clamps 25 close to the shaping columns 21 are provided with multiple arc grooves 31, and a pushing mechanism is provided between the six clamps 25 and the fixed plate 19.

[0025] The pushing mechanism includes a fixed block 22 and a plurality of triangular blocks 26. The fixed block 22 is fixedly connected to the upper edge of the side wall of the fixed plate 19 away from the connecting plate 20, and both ends of the fixed block 22 are fixedly connected to electric push rods 23. The telescopic shaft ends of the two electric push rods 23 are fixedly connected to the splicing plate 18. The corresponding wall surfaces of the two splicing plates 18 are fixedly connected with three pushing frames 27 from top to bottom. The plurality of triangular blocks 26 are respectively fixedly connected to the two ends of the six clamping plates 25. The two adjacent triangular blocks 26 are symmetrically arranged, and the six pushing frames 27 are respectively fitted between the two adjacent triangular blocks 26.

[0026] Working principle: First, place the irregular rod-shaped metal piece on the upper end of the support plate 1, and extend it out of the support plate 1 for a distance in the direction of the disc-shaped blade 32, and then start the intelligent servo motor 11 to drive the bidirectional screw 15 to rotate, and the two sliders 17 will slide close to each other inside the square shell 10, and each square shell 10 will drive the connected carrier plate 16, fixed plate 19, connecting plate 20 and four groups of shaping columns 21 to move together, then the four groups of shaping columns 21 at two places will move close to each other, and the corresponding ends of the four groups of shaping columns 21 at two places will push and squeeze the metal piece until the corresponding ends of the four groups of shaping columns 21 at two places are against the outer wall of the metal piece. Tight, at this time, since the metal piece is of irregular shape, the spring 230 connecting the connecting ring 29 on each shaping column 21 and the connecting plate 20 will be stretched to different degrees, and the position of each shaping column 21 relative to the irregular metal piece will be different, and each shaping column 21 will slide in the fixed plate 19 and the connecting plate 20 and relative to the two, the position of each shaping column 21 will also be different, and the corresponding ends of the four groups of shaping columns 21 at the two places will be adapted to the shape of the irregular rod-shaped metal piece. At this time, the shaping of the irregular rod-shaped metal piece is completed and the intelligent servo motor 11 is turned off, and different irregular rod-shaped metal pieces can be shaped.

[0027] Then, the two electric push rods 23 connected to each fixed block 22 are started, and the two electric push rods 23 at the two locations will drive the respectively connected splicing plates 18 and the three push frames 27 to move toward the center direction of the fixed block 22, and each push frame 27 will squeeze the inclined surfaces of the two corresponding triangular blocks 26 at the same time. Then, under the action of the squeezing force, the respectively corresponding two triangular blocks 26 will be driven to move away from each other, thereby driving the corresponding two adjacent clamping plates 25 to move away from each other, until the multiple arc grooves 31 on each clamping plate 25 are tightly fitted with the respectively corresponding shaping columns 21, and at this time, the four groups of shaping columns 21 at the two locations can be firmly fixed. Then start the intelligent servo motor 11 to drive the four groups of shaping columns 21 at two locations to move closer to each other, so that the four groups of shaping columns 21 at two locations can clamp the irregular rod-shaped metal parts very tightly, thereby fixing the irregular rod-shaped metal parts. Then start the electric slide 7 to drive the support plate 1, the square shell 10, the two carrier plates 16, the four groups of shaping columns 21 at two locations and the irregular rod-shaped metal parts to move toward the direction of the disc-shaped blade 32. The support plate 1 will also move with their connected connecting rods 2 and slide plates 13, and each slide plate 13 will slide outward of the corresponding guide column 9 until the irregular rod-shaped metal parts pass over the disc-shaped blade 32 to the required distance.

[0028] Finally, start the two screw slides 6, and the two screw slides 6 can drive the two frames 5, the support frame 4, the motor 3 and the disc-shaped blade 32 to move downward together. At the same time, start the motor 3 to drive the disc-shaped blade 32 to rotate, so that the disc-shaped blade 32 can cut the irregular rod-shaped metal parts, so that the irregular rod-shaped metal parts can reach the required length, and the irregular rod-shaped metal parts will be firmly clamped during the cutting process. In addition, when facing different irregular rod-shaped metal parts, there is no need to use multiple sets of clamps or frequently customize corresponding clamps, which brings convenience and improves cutting efficiency.

[0029] It should be noted that the intelligent servo motor 11 is a known prior art, which can be highly precise and flexible. At the same time, the driving device in the electric slide 7 and the driving device in the screw slide 6 are also intelligent servo, which can be highly precise and flexible, thereby improving the cutting accuracy.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible intelligent precision transmission device for a numerically controlled machine tool, comprising a machine platform (12), characterized in that: The upper end of the machine platform (12) is provided with a flexible transmission mechanism and a cutting mechanism respectively; The flexible transmission mechanism comprises a square shell (10), the square shell (10) is slidably mounted above the machine platform (12) via a translation mechanism, and a carrier plate (16) is symmetrically attached to the upper end of the square shell (10), a driving mechanism is provided between the two carrier plates (16) and the square shell (10), and a shaping mechanism is provided at the upper ends of the two carrier plates (16), and a supporting mechanism is provided between the middle part of the upper end of the square shell (10) and the machine platform (12); The shaping mechanism comprises a connecting plate (20), the connecting plate (20) being fixedly connected to the upper end of the carrier plate (16), and four groups of shaping columns (21) are slidably inserted through the inner wall of the connecting plate (20) from top to bottom, an elastic component is provided between each of the shaping columns (21) and the connecting plate (20), and a locking mechanism is provided between the four groups of shaping columns (21) and the carrier plate (16).

2. According to claim 1, a flexible intelligent precision transmission device for CNC machine tools is characterized in that: The cutting mechanism comprises two screw slides (6), the two screw slides (6) are symmetrically fixedly mounted on the upper end of the machine platform (12) away from the square shell (10), and frames (5) are fixedly mounted on the workbenches of the two screw slides (6), a support frame (4) is fixedly connected between the two frames (5), an electric motor (3) is fixedly mounted on the inner side of the support frame (4), and a disc-shaped blade (32) is fixedly connected to the output shaft end of the electric motor (3).

3. According to claim 1, a flexible intelligent precision transmission device for CNC machine tools is characterized in that: The translation mechanism comprises a groove (8), the groove (8) being arranged in the middle of the upper end of the machine platform (12), and an electric slide (7) being fixedly mounted on the concave surface of the groove (8), the working table of the electric slide (7) being fixedly connected to the lower end of the square shell (10).

4. The flexible intelligent precision transmission device for CNC machine tools according to claim 1, characterized in that: The driving mechanism comprises a bidirectional screw (15) and an intelligent servo motor (11); the bidirectional screw (15) penetrates and is rotatably connected to the inner wall of the square shell (10); the intelligent servo motor (11) is fixedly mounted on a side wall of the square shell (10); and the output shaft end of the intelligent servo motor (11) is fixedly connected to one end of the bidirectional screw (15); a slider (17) is symmetrically threadedly sleeved on the outer wall of the bidirectional screw (15); two sliders (17) are both fitted inside the square shell (10), and the upper ends of the two sliders (17) are respectively fixedly connected to the lower ends of two carrier plates (16).

5. The flexible intelligent precision transmission device for CNC machine tools according to claim 2, characterized in that: The support mechanism comprises a support plate (1), the support plate (1) being fixedly connected to the middle of the upper end of the square shell (10), and connecting rods (2) being fixedly connected to both sides of the support plate (1), and a slide plate (13) being fixedly connected to one end of the two connecting rods (2) away from the support plate (1), and guide pillars (9) movably penetrate the inner walls of the two slide plates (13), one end of the two guide pillars (9) being fixedly connected to the wall surface of the square shell (10) corresponding to the two screw slides (6), and a U-shaped seat (14) being fixedly connected between the other ends of the two guide pillars (9) and the upper end of the machine table (12).

6. The flexible intelligent precision transmission device for CNC machine tools according to claim 1, characterized in that: The elastic component comprises a connecting ring (29), the connecting ring (29) being fixedly sleeved on the outer wall of the shaping column (21) near the connecting plate (20), and a second spring (30) being fixedly connected between the connecting ring (29) and the connecting plate (20), the second spring (30) being slidably sleeved on the outer wall of the shaping column (21).

7. The flexible intelligent precision transmission device for CNC machine tools according to claim 1, characterized in that: The locking mechanism comprises a fixing plate (19) and two supporting columns (24); the fixing plate (19) is slidably sleeved on the outer walls of the four groups of shaping columns (21) away from the connecting plate (20); the lower end of the fixing plate (19) is fixedly connected to the upper end of the carrier plate (16); the two supporting columns (24) are respectively fixedly connected to two corners of the upper end of the carrier plate (16) close to the fixing plate (19); and six clamping plates (25) are slidably sleeved on the outer walls of the two supporting columns (24); the six clamping plates (25) are slidably sleeved on the four groups of shaping columns (21) and the fixing plates (25) are slidably sleeved on the outer walls of the two supporting columns (24); the six clamping plates (25) are slidably sleeved on the four groups of shaping columns (21) and the fixing plates (20) are slidably sleeved on the outer walls of the two supporting columns (24); the fixing plates (25 ... two supporting columns (24); the fixing plates (25) are slidably sleeved on the outer walls of the two supporting columns (24); the fixing plates (25) are slidably sleeved on the outer walls of the four groups of shaping columns (21) and the fixing plates (20) are slidably sleeved on the outer walls of the two supporting columns (24); the fixing plates (25) are slidably sleeve The shaping columns (21) are staggered, and two adjacent clamping plates (25) are symmetrically arranged, and springs (28) are symmetrically fixedly connected between the two adjacent clamping plates (25), wherein three springs (28) and other three springs (28) are respectively slidably sleeved on the outer walls of the two support columns (24), and the wall surfaces of the six clamping plates (25) close to the shaping columns (21) are each provided with a plurality of arc grooves (31), and a pushing mechanism is provided between the six clamping plates (25) and the fixed plate (19).

8. The flexible intelligent precision transmission device for CNC machine tools according to claim 7, characterized in that: The pushing mechanism comprises a fixed block (22) and a plurality of triangular blocks (26); the fixed block (22) is fixedly connected to the upper edge of the side wall of the fixed plate (19) away from the connecting plate (20); both ends of the fixed block (22) are fixedly connected to electric push rods (23); the telescopic shaft ends of the two electric push rods (23) are fixedly connected to the splicing plate (18); the corresponding wall surfaces of the two splicing plates (18) are fixedly connected to three pushing frames (27) from top to bottom; the plurality of triangular blocks (26) are respectively fixedly connected to the two ends of the six clamping plates (25); two adjacent triangular blocks (26) are symmetrically arranged; and the six pushing frames (27) are respectively fitted between two adjacent triangular blocks (26).

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