CN210451787U

CN210451787U - Precise high-speed machine tool

Info

Publication number: CN210451787U
Application number: CN201921097411.1U
Authority: CN
Inventors: 张广藩
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-05-05
Anticipated expiration: 2029-07-12

Abstract

The utility model relates to the technical field of machine tools, in particular to a precise high-speed machine tool, which comprises a machine body, a guide rail arranged on the machine body, a slide block arranged on the guide rail in a sliding way, and a driving device used for driving the slide block to slide along the guide rail; a needle group is arranged on one side of the sliding block close to the guide rail in a rolling way, and a rolling gap is arranged between the guide rail and the sliding block; and one side of the at least one guide rail, which is far away from the sliding block, is provided with a debugging mark for adjusting the width of the rolling gap, and the debugging mark is positioned between the guide rail and the machine body. The utility model arranges the needle roller group between the slide block and the guide rail, changes the sliding friction between the slide block and the guide rail into rolling friction, reduces the friction force between the slide block and the guide rail, and avoids the slide block from generating too fast heat and serious abrasion; meanwhile, one side, far away from the sliding block, of the guide rail is provided with a debugging mark, so that the rolling clearance between the sliding block and the guide rail can be adjusted, and the precision of the machine tool is improved.

Description

Precise high-speed machine tool

Technical Field

The utility model relates to a machine tool technical field especially relates to an accurate high-speed lathe.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, and are conventionally called machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

The general machine tool comprises a machine body, wherein a workbench is arranged at the lower part of the machine body, an eccentric shaft transversely penetrates through the upper part of the machine body, one end of the eccentric shaft is connected with a flywheel, the middle part of the eccentric shaft is connected with a connecting rod, the lower end of the connecting rod is connected with a sliding block, the sliding block is used for installing processing dies such as a stamping die, a milling cutter and the like, two sides of the middle part of the machine body are oppositely provided; when the machining device works, the eccentric shaft is driven through the power mechanism, and the eccentric shaft drives the connecting rod to further drive the sliding block to move up and down so as to machine a workpiece.

With the rapid development of economy, the demand of the existing small precise elements is more and more increased, the stroke of the common machine tool is high, the speed is low, in order to process large batches of workpieces, the rotating speed of the eccentric shaft is generally increased to increase the moving speed of the sliding block, when the moving speed of the sliding block is increased, the abrasion between the sliding block and the guide rail is increased, and the processing precision of the machine tool is easily reduced after the machine tool is used for a long time.

Disclosure of Invention

The utility model aims at the not enough of above-mentioned prior art, the utility model aims at providing an accurate high-speed lathe can adjust the clearance between lathe guide rail and the slider, controls the frictional force between guide rail and the slider to improve the machining precision of lathe.

The above technical purpose of the present invention can be achieved by the following technical solutions: a precise high-speed machine tool comprises a machine body, a guide rail arranged on the machine body, a sliding block arranged on the guide rail in a sliding manner, and a driving device used for driving the sliding block to slide along the guide rail; a needle group is arranged on one side of the sliding block close to the guide rail in a rolling manner, and a rolling gap is formed between the guide rail and the sliding block; at least one guide rail is provided with the debugging mark that is used for adjusting the rolling clearance width of keeping away from the one side of slider, the debugging mark is located between guide rail and the fuselage.

Further, the needle roller set comprises a plurality of first needle rollers and a plurality of second needle rollers which are arranged in parallel, the diameter of the first needle rollers is smaller than that of the second needle rollers, and the plurality of first needle rollers and the plurality of second needle rollers are alternately arranged.

Furthermore, one side of the guide rail, which is close to the sliding block, is provided with a V-shaped groove for guiding, and the sliding block is provided with a sliding part matched with the concave-convex shape of the V-shaped groove.

Furthermore, two lateral walls of sliding part equally divide and do not are provided with the mounting groove that is used for installing the needle group, the needle group can be followed V type groove and rolled.

Furthermore, the debugging mark is provided with at least one debugging surface for adjusting the rolling clearance, the debugging surface is arranged in an inclined mode, and an inclined plane matched with the debugging surface in an abutting mode is arranged on the guide rail.

Furthermore, a mounting hole is formed in the guide rail, a bolt is connected in the mounting hole to tightly press the guide rail on the machine body, and the diameter of the bolt is smaller than that of the mounting hole.

Furthermore, the debugging mark is provided with an adjusting scale.

Further, a plurality of threaded holes are formed in the side face, in contact with the debugging mark, of the machine body, each threaded hole is in threaded connection with a precision calibration piece, and the precision calibration piece can abut against the debugging mark to enable the guide rail to abut against the needle roller set.

Further, the precision calibration piece comprises a threaded portion in threaded fit with the threaded hole and a rotating portion for rotating the threaded portion.

Further, the driving device comprises a motor arranged on the machine body, an output shaft of the motor is provided with a belt wheel, an eccentric shaft transversely penetrates through the upper part of the machine body, the eccentric distance of the eccentric shaft is 10-15mm, one end of the eccentric shaft is provided with a flywheel, a belt is sleeved between the flywheel and the belt wheel, the middle part of the eccentric shaft is connected with a connecting rod, and the lower end of the connecting rod is connected with the sliding block; and a brake wheel is arranged at one end of the eccentric shaft, which is far away from the flywheel, and one side of the flywheel is connected with a clutch.

The utility model has the advantages that:

firstly, the utility model discloses set up the needle group between slider and guide rail, become the sliding friction between slider and the guide rail into rolling friction, reduced the frictional force between slider and the guide rail, avoided the slider to produce heat too fast and wearing and tearing seriously, one side that the guide rail kept away from the slider simultaneously is provided with the debugging mark, can adjust the rolling clearance between slider and the guide rail to improve the machining precision of lathe;

and the roller pin group comprises a plurality of first roller pins and a plurality of second roller pins which are arranged in parallel, the diameter of the first roller pins is smaller than that of the second roller pins, the plurality of first roller pins and the plurality of second roller pins are alternately arranged, when the sliding block slides up and down, the first roller pins and the second roller pins roll up and down along the V-shaped groove 21, the first roller pins and the second roller pins are in mutual contact and reverse in rotation, the friction force between the adjacent roller pins can be reduced, the second roller pins can be in contact with the guide rail, the first roller pins are not easy to contact with the guide rail, the friction force between the roller pin group and the guide rail is reduced, the sliding block is delayed from generating heat, and the machining precision is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the connection between the slider, the guide rail, the debugging mark and the body according to the embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a schematic structural diagram of the needle roller set according to the embodiment of the present invention.

Reference numerals: 10. a body; 11. a bolt; 20. a guide rail; 21. a V-shaped groove; 22. mounting grooves; 23. a pointer; 30. a slider; 31. a sliding part; 41. a motor; 42. a pulley; 43. a belt; 44. an eccentric shaft; 45. a flywheel; 46. a connecting rod; 47. a brake wheel; 48. a clutch; 50. debugging the standard; 51. adjusting scales; 60. a needle rolling group; 61. a first needle roller; 62. a second needle roller; 70. a precision calibration piece; 71. a threaded portion; 72. a rotating part.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

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

A precision high-speed machine tool, referring to fig. 1 to 3, comprising a machine body 10, a guide rail 20 arranged on the machine body 10, a slide block 30 arranged on the guide rail 20 in a sliding manner and used for installing a processing mould (not marked in the figures), and a driving device (not marked in the figures) used for driving the slide block 30 to slide along the guide rail 20; a needle group 60 is arranged on one side of the sliding block 30 close to the guide rail 20 in a rolling manner, and a rolling gap is formed between the guide rail 20 and the sliding block 30; at least one of the guide rails 20 is provided with a debugging mark 50 for adjusting the rolling gap on the side away from the sliding block 30, the debugging mark 50 is located between the guide rail 20 and the machine body 10, and the width of the rolling gap can be adjusted by sliding the debugging mark 50. The utility model can be used for machine tools such as punching machines, milling machines, planing machines and the like, the utility model arranges the needle roller group 60 between the slide block 30 and the guide rail 20 of the machine tool, changes the sliding friction between the slide block 30 and the guide rail 20 into rolling friction, reduces the friction force between the slide block 30 and the guide rail 20, and avoids the slide block 30 from generating too fast heat and seriously wearing; meanwhile, the debugging mark 50 is arranged on one side of the guide rail 20 far away from the sliding block 30, so that the rolling clearance between the sliding block 30 and the guide rail 20 can be adjusted, and the machining precision of the machine tool is improved.

As shown in fig. 1, the driving device includes a motor 41 disposed on the body 10, an output shaft of the motor 41 is provided with a belt pulley 42, an eccentric shaft 44 transversely penetrates through the upper portion of the body 10, one end of the eccentric shaft 44 is provided with a flywheel 45, a belt 43 is sleeved between the flywheel 45 and the belt pulley 42, the middle portion of the eccentric shaft 44 is connected with a connecting rod 46, and the lower end of the connecting rod 46 is connected with the sliding block 30; the end of the eccentric shaft 44 away from the flywheel 45 is provided with a brake wheel 47, and one side of the flywheel 45 is connected with a clutch 48. Specifically, the eccentric shaft 44 has an eccentric distance of 10-15mm, and the utility model discloses shorten eccentric distance, can improve the continuous processing number of times, raise the efficiency, be fit for the production of big small-size precision parts in batches.

As shown in fig. 2 and 3, the debugging target 50 is provided with at least one debugging surface (not marked in the drawings) for adjusting the rolling clearance, the debugging surface is arranged obliquely, and the guide rail 20 is provided with an inclined surface (not marked in the drawings) in abutting fit with the debugging surface. Specifically, the guide rail 20 is provided with a mounting hole (no mark in the figure), the mounting hole is internally connected with a bolt 11 so as to compress the guide rail 20 to the machine body 10, the diameter of the bolt 11 is smaller than the mounting hole, the guide rail 20 can be conveniently moved, the guide rail 20 is compressed to the machine body 10 through the bolt 11, a gap for accommodating the debugging target 50 is arranged between one side of the guide rail 20, which is far away from the sliding block 30, and the machine body 10, the debugging target 50 is provided with a debugging surface, and the guide rail 20 is provided with an inclined surface which is in butt joint fit with the debugging surface, so that when the debugging target 50 is moved up and down, the abutting degree between the debugging target 50 and the guide rail 20 can be adjusted, the rolling gap is adjusted, and the.

Preferably, in order to clearly display the distance of the rolling gap, the debugging mark 50 is provided with adjusting scales 51 (see fig. 1), the guide rail is provided with pointers 23, each scale corresponds to a corresponding rolling gap, and meanwhile, the debugging mark 50 can enable the rolling gap to be accurate to micrometer, so as to improve the machining precision of the machine tool.

As shown in fig. 1 and 2, a plurality of threaded holes are formed in a side surface of the body 10 contacting the debugging target 50, each threaded hole is in threaded connection with a precision calibration piece 70, and the precision calibration piece 70 can abut against the debugging target 50 by rotating the precision calibration piece 70, so that the guide rail 20 abuts against the needle group 60. Preferably, the precision aligning member 70 includes a screw portion 71 screw-engaged with the screw hole and a rotating portion 72 for rotating the screw portion 71. Before the machine tool is used, the calibration can be carried out through the precision calibration piece 70, during the calibration, the debugging mark 50 is slid, 0 scale of the adjusting scale 51 is aligned with the pointer 23, then the rotating part 72 is rotated, so that the needle roller group 60 is abutted to the guide rail 20, and during the subsequent adjustment of the debugging mark 50, the width of the rolling gap can be accurately displayed, and the adjustment error is reduced.

As shown in fig. 2 and 3, one side of the guide rail 20 close to the slider 30 is provided with a V-shaped groove 21 for guiding, the slider 30 is provided with a sliding portion 31 in concave-convex fit with the V-shaped groove 21, two side walls of the sliding portion 31 are both provided with mounting grooves 22, and a needle group 60 is mounted in the mounting grooves 22. Specifically, V type groove 21 and the unsmooth adaptation of sliding part 31 can restrict the degree of freedom of slider 30 horizontal direction, improve the precision when slider 30 slides from top to bottom, thereby improve the utility model discloses a machining precision.

As shown in fig. 3 and 4, the needle set 60 includes a plurality of first needle rollers 61 and a plurality of second needle rollers 62 arranged in parallel, the diameter of the first needle rollers 61 is smaller than that of the second needle rollers 62, and the plurality of first needle rollers 61 and the plurality of second needle rollers 62 are alternately arranged. When the sliding block 30 slides up and down, the first roller pin 61 and the second roller pin 62 roll up and down along the V-shaped groove 21, the first roller pin 61 and the second roller pin 62 are in contact with each other and rotate in opposite directions, friction force between adjacent roller pins can be reduced, the second roller pin 62 can be in contact with the guide rail 20, the first roller pin 61 is not easy to contact with the guide rail 20, friction force between the roller pin group 60 and the guide rail 20 is reduced, heat generation of the sliding block 30 is delayed, and machining precision is improved.

The working principle is as follows:

calibrating before processing: sliding the adjusting mark 50 to make the 0 scale of the adjusting scale 51 align with the pointer 23, and then aligning the precision calibration piece 70 to make the guide rail 20 abut against the needle group 60;

and (3) adjusting during processing: the pilot 50 is slid up and down and the rolling clearance is determined by the adjustment scale 51.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. A precision high-speed machine tool comprises a machine body (10), and is characterized in that: the device also comprises a guide rail (20) arranged on the machine body (10), a sliding block (30) arranged on the guide rail (20) in a sliding manner, and a driving device used for driving the sliding block (30) to slide along the guide rail (20); a needle group (60) is arranged on one side, close to the guide rail (20), of the sliding block (30) in a rolling mode, and a rolling gap is formed between the guide rail (20) and the sliding block (30); at least one guide rail (20) is provided with the debugging mark (50) that is used for adjusting the rolling clearance width apart from one side of slider (30), debugging mark (50) are located between guide rail (20) and fuselage (10).

2. A precision high-speed machine tool according to claim 1, wherein: the needle set (60) comprises a plurality of first needle rollers (61) and a plurality of second needle rollers (62) which are arranged in parallel, the diameter of the first needle rollers (61) is smaller than that of the second needle rollers (62), and the plurality of first needle rollers (61) and the plurality of second needle rollers (62) are alternately arranged.

3. A precision high-speed machine tool according to claim 2, wherein: one side of the guide rail (20) close to the sliding block (30) is provided with a V-shaped groove (21) for guiding, and the sliding block (30) is provided with a sliding part (31) which is matched with the V-shaped groove (21) in a concave-convex mode.

4. A precision high-speed machine tool according to claim 3, wherein: two side walls of the sliding part (31) are respectively provided with a mounting groove (22) for mounting a needle group (60), and the needle group (60) can roll along the V-shaped groove (21).

5. A precision high-speed machine tool according to any one of claims 1 to 4, wherein: the debugging mark (50) is provided with at least one debugging surface for adjusting the rolling clearance, the debugging surface is obliquely arranged, and the guide rail (20) is provided with an inclined surface which is matched with the debugging surface in an abutting mode.

6. A precision high-speed machine tool according to claim 5, wherein: the guide rail (20) is provided with a mounting hole, a bolt (11) is connected in the mounting hole to tightly press the guide rail (20) on the machine body (10), and the diameter of the bolt (11) is smaller than that of the mounting hole.

7. A precision high-speed machine tool according to claim 6, wherein: the debugging mark (50) is provided with an adjusting scale (51).

8. A precision high-speed machine tool according to claim 7, wherein: a plurality of threaded holes are formed in the side face, in contact with the debugging target (50), of the machine body (10), each threaded hole is in threaded connection with an accuracy calibration piece (70), and the accuracy calibration piece (70) can enable the accuracy calibration piece (70) to abut against the debugging target (50) so that the guide rail (20) abuts against the needle rolling group (60).

9. A precision high-speed machine tool according to claim 8, wherein: the precision calibration piece (70) comprises a threaded portion (71) in threaded fit with the threaded hole and a rotating portion (72) for rotating the threaded portion (71).

10. A precision high-speed machine tool according to claim 1, wherein: the driving device comprises a motor (41) arranged on a machine body (10), an output shaft of the motor (41) is provided with a belt wheel (42), an eccentric shaft (44) transversely penetrates through the upper part of the machine body (10), the eccentric distance of the eccentric shaft (44) is 10-15mm, one end of the eccentric shaft (44) is provided with a flywheel (45), a belt (43) is sleeved between the flywheel (45) and the belt wheel (42), the middle part of the eccentric shaft (44) is connected with a connecting rod (46), and the lower end of the connecting rod (46) is connected with the sliding block (30); one end of the eccentric shaft (44) far away from the flywheel (45) is provided with a brake wheel (47), and one side of the flywheel (45) is connected with a clutch (48).