阅读说明：本技术 一种数控立式精密铣床 (Numerical control vertical precision milling machine ) 是由 不公告发明人 于 2020-07-18 设计创作，主要内容包括：本发明涉及机械加工设备技术领域,且公开了一种数控立式精密铣床,包括传动底座,所述传动底座的中部固定套接有轴套,所述轴套的中部开设有异形槽且通过异形槽卡接有紧固块,所述轴套的底端螺纹连接有限位螺帽且通过拧紧限位螺帽对紧固块的位置进行卡紧。该数控立式精密铣床,转动转动轴带动电磁条正反两面调整,可与永磁铁之间产生吸力和斥力,通过吸力可以起到固定铣刀柄部以及整个铣刀的功能,通过两者之间产生的斥力,以及可以通过调控电磁条电控系统的电流大小控制两者之间的斥力大小,在转动切削的同时额外提供上下冲击力,相较与传统的铣削采用一层一层由上到下铣削工件的方式(参照图六),提高切削速率。(The invention relates to the technical field of machining equipment and discloses a numerical control vertical precision milling machine which comprises a transmission base, wherein a shaft sleeve is fixedly sleeved in the middle of the transmission base, a special-shaped groove is formed in the middle of the shaft sleeve, a fastening block is clamped in the special-shaped groove, a limiting nut is connected to the bottom end of the shaft sleeve in a threaded mode, and the position of the fastening block is clamped by screwing the limiting nut. This vertical precision milling machine of numerical control, the rotation axis drives the adjustment of the positive and negative two sides of electromagnetism strip, can with produce suction and repulsion between the permanent magnet, can play the function of fixed milling cutter stalk portion and whole milling cutter through suction, through the repulsion that produces between the two, and can control the repulsion size between the two through the electric current size of regulation and control electromagnetism strip electric control system, additionally provide impact force from top to bottom when rotating the cutting, compare with traditional mill adopt the one deck by the mode (refer to six) of milling the work piece from top to bottom, improve cut rate.)

1. The utility model provides a vertical precision milling machine of numerical control, includes transmission base (1), axle sleeve (2) have been cup jointed to the middle part of transmission base (1) is fixed, the middle part of axle sleeve (2) has been seted up special-shaped groove and has fastening block (3) through special-shaped groove joint, the bottom threaded connection of axle sleeve (2) has stop nut (4) and carries out the chucking through screwing up stop nut (4) to the position of fastening block (3), ring groove has been seted up at the middle part of the inside of fastening block (3) and has milling cutter stalk portion (5) through ring groove swing joint, the bottom fixedly connected with milling cutter neck (6) of milling cutter stalk portion (5), the bottom outside is provided with milling cutter week sword (7) in milling cutter neck (6), chip groove (8), its characterized in that have been seted up on milling cutter neck (6) between week sword (7): and a milling cutter end blade (9) is arranged in the chip pocket (8) at the bottommost end, and a milling cutter point (10) protruding out of the milling cutter neck (6) is arranged at the bottom end of the milling cutter end blade (9).

2. The numerical control vertical precision milling machine according to claim 1, characterized in that: fastening piece (3) are including block (31), eight bar grooves (32) that the equidistance was arranged are seted up all around to block (31), the below swing joint at block (31) top has axis of rotation (33), the positive one end fixedly connected with of axis of rotation (33) is located inside electric magnetic stripe (34) of block (31).

3. The numerical control vertical precision milling machine according to claim 2, characterized in that: the rotating shaft (33) can drive the electromagnetic strip (34) to rotate in the block body (31) and the rotating range is zero degree to one hundred eighty degrees.

4. The numerical control vertical precision milling machine according to claim 2, characterized in that: the magnetism of the top end and the bottom end of the electric magnetic strip (34) is opposite, and the electric magnetic strip (34) is electrically connected with an electric control system capable of controlling the current.

5. The numerical control vertical precision milling machine according to claim 2, characterized in that: the milling cutter handle part (5) comprises a cutter handle head (51), a permanent magnet (53) is fixedly connected to the top end of the cutter handle head (51), and a retention strip (52) located below the permanent magnet (53) is welded on the periphery of the top of the cutter handle head (51).

6. The numerical control vertical precision milling machine according to claim 5, characterized in that: the number of the retention strips (52) is the same as that of the strip-shaped grooves (32), the retention strips (52) are matched with the strip-shaped grooves in size, and the retention strips (52) can slide up and down along the strip-shaped grooves (32).

7. The numerical control vertical precision milling machine according to claim 5, characterized in that: the two ends of the permanent magnet (53) and the two ends of the electric magnetic strip (34) respectively generate attraction and repulsion, and the current provided to the electric magnetic strip (34) is increased and reduced.

8. The numerical control vertical precision milling machine according to claim 1, characterized in that: the number of the milling cutter points (10) is four, and the milling cutter points are equidistantly distributed around the bottom end of the milling cutter neck (6).

Technical Field

The invention relates to the technical field of machining equipment, in particular to a numerical control vertical precision milling machine.

Background

The numerical control milling machine integrates a digital control system on a common milling machine, can accurately mill under the control of program codes, has various forms, has a plurality of similarities although the numerical control milling machines of different types have differences in composition, and consists of six main parts, namely a machine body part, a milling mechanism part, a workbench part, a transverse feeding part, a lifting platform part and a cooling and lubricating part.

Disclosure of Invention

The invention provides a numerical control vertical precision milling machine which has the advantages of high cutting efficiency, reasonable connection mode and difficult cutter breakage and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a vertical precision milling machine of numerical control, includes the transmission base, the fixed cover in middle part of transmission base has connect the axle sleeve, the middle part of axle sleeve has been seted up special-shaped groove and has the holding block through special-shaped groove joint, the bottom threaded connection of axle sleeve has limit nut and carries out the chucking through screwing up limit nut to the position of holding block, ring groove has been seted up at the middle part of the inside of holding block and has the milling cutter stalk portion through ring groove swing joint, the bottom fixedly connected with milling cutter neck of milling cutter stalk portion, the bottom outside is provided with milling cutter all sword in the milling cutter neck, the chip pocket has been seted up between the all sword of milling cutter on the milling cutter neck, and is located and is equipped with the milling cutter end sword in the chip pocket of bottom, the bottom of milling.

Preferably, the fastening block includes the block, eight bar grooves that the equidistance was arranged are seted up all around to the block, the below swing joint at block top has the axis of rotation, the positive one end fixedly connected with of axis of rotation is located the inside electromagnetism strip of block.

Preferably, the rotating shaft can drive the electromagnetic strip to rotate in the block body, and the rotating range is zero degrees to one hundred and eighty degrees.

Preferably, the top end and the bottom end of the electric magnetic strip are opposite in magnetism, and the electric magnetic strip is electrically connected with an electric control system capable of controlling the current.

Preferably, the milling cutter handle comprises a cutter handle head, a permanent magnet is fixedly connected to the top end of the cutter handle head, and a retention strip located below the permanent magnet is welded to the periphery of the top of the cutter handle head.

Preferably, the number of the retention strips is the same as that of the strip-shaped grooves, the retention strips are matched with the strip-shaped grooves in size, and the retention strips can slide up and down along the strip-shaped grooves.

Preferably, the permanent magnet and the two ends of the electromagnetic bar respectively generate attraction and repulsion, and the attraction and repulsion are weakened along with the increase of the current provided to the electromagnetic bar.

Preferably, the number of the milling cutter tips is four and the milling cutter tips are equidistantly distributed around the bottom end of the neck of the milling cutter.

The invention has the following beneficial effects:

1. this vertical precision milling machine of numerical control, the rotation axis drives the adjustment of the positive and negative two sides of electromagnetism strip, can with produce suction and repulsion between the permanent magnet, can play the function of fixed milling cutter stalk portion and whole milling cutter through suction, through the repulsion that produces between the two, and can control the repulsion size between the two through the electric current size of regulation and control electromagnetism strip electric control system, additionally provide impact force from top to bottom when rotating the cutting, compare with traditional mill adopt the one deck by the mode (refer to six) of milling the work piece from top to bottom, improve cut rate.

2. According to the numerical control vertical precision milling machine, the retention strips are arranged on the periphery of the top of the tool holder head, the retention strips are the same in number with the strip-shaped grooves in the block body and are adaptive in size, the lateral walls of the block body beside the strip-shaped grooves are abutted in the rotating process to keep the horizontal positions of the fastening block and the milling cutter handle to be stable, compared with the traditional clamping mode of the fastening block and the milling cutter handle, the numerical control vertical precision milling machine can be stressed in multiple points, and gaps exist between the retention strips and the strip-shaped grooves to form buffering, so that the probability of cutter; meanwhile, the retention strip can slide along the inside of the strip-shaped groove, the vertical movement of the tool shank head in the block body is not influenced, and the rationality of the equipment is improved.

3. This vertical precision milling machine of numerical control, through be provided with on the lateral wall at milling cutter week sword bottom, carry out the grooving to the work piece of milling cutter week sword bottom contact when the sword rotates the cutting all around at milling cutter and handle, can set up annular ditch at the cutting position, additionally be provided with from top to bottom impact force when avoiding adopting the cutting terminal surface that this application set up, avoid these impact forces to extrude to the material and continuously accumulate the back can cause the work piece bottom to warp and strengthen the torsion that the bottom cut and lead to milling cutter disconnected sword, the stability of equipment has been improved.

Drawings

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

FIG. 2 is an external view of the fastening block of the present invention in connection with a shank of a milling cutter;

FIG. 3 is an internal view of the fastening block of the present invention in connection with a shank of a milling cutter;

FIG. 4 is an enlarged schematic view of an end edge of the milling cutter of the present invention;

FIG. 5 is a schematic top view of a milling cutter tip of the present invention;

FIG. 6 is a schematic diagram illustrating a comparison of the milling process of the workpiece face according to the present invention.

In the figure: 1. a transmission base; 2. a shaft sleeve; 3. a fastening block; 31. a block body; 32. a strip-shaped groove; 33. a rotating shaft; 34. an electric magnetic strip; 4. a limit nut; 5. a milling cutter shank; 51. a tool shank head; 52. a retention bar; 53. a permanent magnet; 6. a milling cutter neck; 7. milling the peripheral edge of the cutter; 8. a chip pocket; 9. end blades of milling cutters; 10. the tip of the milling cutter.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-5, a numerical control vertical precision milling machine, including a transmission base 1, a shaft sleeve 2 is fixedly sleeved at the middle part of the transmission base 1, a special-shaped groove is formed at the middle part of the shaft sleeve 2, and a fastening block 3 is clamped through the special-shaped groove, a limit nut 4 is connected to the bottom end of the shaft sleeve 2 through a thread and tightly clamps the position of the fastening block 3 through tightening the limit nut 4, an annular clamping groove is formed at the middle part of the inside of the fastening block 3, and a milling cutter handle part 5 is movably connected to the annular clamping groove, a milling cutter neck part 6 is fixedly connected to the bottom end of the milling cutter handle part 5, milling cutter peripheral edges 7 are arranged at the outer side of the bottom part of the milling cutter neck part 6, chip-receiving grooves 8 are formed between the peripheral edges 7 of the milling cutter on the milling cutter neck part 6.

Further, the fastening piece 3 includes block 31, and eight bar grooves 32 that the equidistance was arranged are seted up around block 31, and the below swing joint at block 31 top has a axis of rotation 33, and the positive one end fixedly connected with of axis of rotation 33 is located the inside electromagnetism strip 34 of block 31.

Further, the rotation shaft 33 can drive the electromagnetic bar 34 to rotate in the block 31 within a range of zero degrees to one hundred eighty degrees, and the rotation forms a suction force or a repulsion force for fixing and pushing the milling cutter respectively.

Further, the top end and the bottom end of the electromagnetic strip 34 are opposite in magnetism, the electromagnetic strip 34 is electrically connected with an electric control system capable of controlling the current, and the magnetism can be regulated and controlled through the electric control system.

Further, the milling cutter shank 5 comprises a shank head 51, a permanent magnet 53 is fixedly connected to the top end of the shank head 51, and a retention strip 52 positioned below the permanent magnet 53 is welded to the periphery of the top of the shank head 51.

Further, the number of the retention bars 52 is the same as that of the strip-shaped grooves 32, and the retention bars 52 are matched with the strip-shaped grooves 32 in size, so that the retention bars 52 can slide up and down along the strip-shaped grooves 32, and the retention bars 52 do not collide when moving up and down under the action of a repulsive force.

Furthermore, the permanent magnet 53 and the two ends of the electromagnetic bar 34 respectively generate attraction and repulsion, and the current provided to the electromagnetic bar 34 is increased and reduced, so that the permanent magnet 53 can form impact force on the workpiece in the milling process through the up-and-down movement of the magnetic size of the electromagnetic bar 34, and the milling speed is increased.

Furthermore, the number of the milling cutter points 10 is four, the milling cutter points are equidistantly distributed around the bottom end of the milling cutter neck 6, the milling cutter points 10 perform grooving treatment on a workpiece contacted with the bottom end of the milling cutter peripheral edge 7 while the milling cutter peripheral edge 7 rotates for cutting, an annular groove can be formed in a cutting part, and the problem of material extrusion is avoided.

The theory of operation, installation: aligning a tool shank head 51 to an annular clamping groove in the middle of the bottom end of the block body 31, aligning the retention strip 52 to a strip-shaped groove 32 in the block body 31, pushing the milling cutter shank 5 upwards to enable the milling cutter shank 5 to be clamped with the fastening block 3, starting an electric control system of the electric magnetic strip 34, generating suction between the electromagnetic strip 34 and the retention strip 52, and fixing the whole position of the milling cutter shank 5; processing: when the top end of a workpiece is milled from top to bottom, after the position of the workpiece to be processed is determined, the transmission base 1 moves to drive the whole milling cutter to move to the top end of a cutting position, the electric magnetic strip 34 is turned by one hundred eighty degrees by rotating the rotating shaft 33, mutual repulsion is formed between the electromagnetic strip 34 and the retention strip 52, the milling cutter handle part 5 drives the peripheral edge 7 of the milling cutter to move downwards while the bottom end of the peripheral edge 7 of the milling cutter supports against the workpiece, the peripheral edge 7 of the milling cutter is controlled by the numerical control panel to rotate to start rotating cutting, meanwhile, the electric control system of the electric magnetic strip 34 is adjusted to increase and weaken current so that the interval of repulsive force between the electric magnetic strip 34 and the retention strip 52 is increased and weakened, the retention strip 52 moves upwards and downwards along the strip-shaped groove 32, the peripheral edge 7 of the milling cutter is driven to move upwards and downwards during rotating cutting, an upper and lower impact force is additionally provided during rotating cutting, digging the surface of a workpiece which is hardened by vertical impact, and extruding scraps formed by digging and cutting along the chip grooves 8; during the side milling, an electric control system of the electromagnetic strip 34 is started, so that an attractive force is generated between the electromagnetic strip 34 and the retention strip 52, and the milling can be carried out in the conventional milling mode.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.