CN210910653U

CN210910653U - Pneumatic high-speed spindle modified from common milling machine

Info

Publication number: CN210910653U
Application number: CN201921465179.2U
Authority: CN
Inventors: 周圣斌; 杨辉
Original assignee: Shenzhen Haide Precision Ceramics Co ltd
Current assignee: Shenzhen Haide Precision Ceramics Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-07-03
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a pneumatic high-speed main shaft of ordinary milling machine transformation system belongs to pottery drilling equipment, and its technical scheme main points are: the pneumatic grinding head comprises a milling machine body and a machine head arranged on the milling machine body, wherein the machine head is connected with a pneumatic grinding head for driving a drill bit to rotate, the upper end of the pneumatic grinding head is connected with an air compressor through a compression hose, the compression hose is connected with an electromagnetic valve for controlling the on-off of the interior of the compression hose, and the electromagnetic valve is electrically connected with an electrical part of the milling machine. The utility model discloses a mechanism is reasonable, utilizes the pneumatic rotational speed of polishing head increase drill bit, promotes the grinding force of drill bit, makes the cutting of drill bit quicker, improves the efficiency of processing, is difficult for taking place the rupture when driling simultaneously, improves the life of drill bit to the accurate location of utilizing milling machine itself is confirmed the position that the aperture was seted up, and the position that makes the aperture set up is more accurate.

Description

Pneumatic high-speed spindle modified from common milling machine

Technical Field

The utility model belongs to pottery drilling equipment, more specifically say, it relates to a pneumatic high-speed main shaft of ordinary milling machine transformation system.

Background

The precision ceramics are generally used for manufacturing circuit substrates, coil frameworks, tube sockets, high-voltage insulating ceramics, front cones of rockets and the like, so the processing precision requirement of the precision ceramics is higher.

The existing precision ceramics are usually drilled by directly using a vertical milling machine when being drilled, but the rotating speed of the vertical milling machine is usually less than ten thousand turns, and at the moment, small holes with the diameter of less than 0.8 mm are machined in the precision ceramics, because the rotating speed of the vertical milling machine is too slow, a drill bit is easy to break during machining, and at the moment, the small holes with the diameter of less than 0.8 mm are difficult to be machined efficiently.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a pneumatic high-speed main shaft of ordinary milling machine transformation for solve the rotational speed of ordinary vertical milling machine too fast, lead to being less than the problem that the aperture messenger of 0.8 millimeter easily takes place the rupture at the machining diameter.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a pneumatic high-speed main shaft of ordinary milling machine transformation system, includes the milling machine body and sets up the aircraft nose on the milling machine body, the aircraft nose is connected with the pneumatic head of polishing of drive drill bit pivoted.

Through adopting above-mentioned technical scheme, utilize the pneumatic rotational speed of polishing head increase drill bit, promote the grinding force of drill bit, make the cutting of drill bit quicker, improve the efficiency of processing, the difficult emergence rupture when driling simultaneously improves the life of drill bit to the accurate location that utilizes milling machine itself is confirmed the position that the aperture was seted up, makes the position that the aperture was seted up more accurate.

The utility model discloses further set up to: the nose is connected with a connecting mechanism which connects the pneumatic polishing head with the nose, the connecting mechanism comprises a main shaft fixedly connected with the nose and a lock nozzle which fixes the pneumatic polishing head, the end surface of the main shaft coaxially penetrates through a mounting hole, the lock nozzle is inserted in the mounting hole, the outer wall of the lock nozzle is attached to the inner wall of the mounting hole, the lower end of the lock nozzle penetrates through a connecting hole, the pneumatic polishing head is inserted into the connecting hole, the lower end of the outer wall of the lock nozzle is coaxially fixed with a driving ring, an expansion joint communicated with the connecting hole penetrates through the outer wall of the driving ring in the circumferential direction, the expansion joint penetrates through the lower end face of the lock nozzle and the lower end face of the driving ring, the upper end surface of the driving ring is provided with a first wedge-shaped surface, one end of the first wedge-shaped surface, which is far away from the axis of the lock nozzle, inclines downwards, the first wedge-shaped surface is abutted against the lower end of the mounting hole, and the main shaft is connected with a limiting mechanism for driving the lock nozzle to move upwards.

By adopting the technical scheme, when the pneumatic polishing head is inserted into the connecting hole during installation, upward thrust is applied to the lock nozzle, and at the moment, the lower end of the mounting hole applies force perpendicular to the first wedge-shaped surface to the side wall of the lower end of the lock nozzle, so that the side wall of the lower end of the lock nozzle moves towards the axis direction of the lock nozzle and the pneumatic polishing head is lowered to fix, and the pneumatic polishing head is disassembled and assembled.

The utility model discloses further set up to: stop gear includes that the coaxial last flange that is fixed in the main shaft lower extreme and can dismantle the lower flange of being connected with last flange, the drive groove has been seted up to lower flange upper end, go up the flange lower extreme and arrange the drive inslot in and both threaded connection, the coaxial intercommunicating pore that runs through of drive groove bottom surface, pneumatic head lower extreme of polishing passes the connecting hole, just drive groove bottom and lock mouth lower extreme butt.

Through adopting above-mentioned technical scheme, utilize lower flange to exert ascending thrust to the lock mouth, thereby make the lock mouth rebound fix the position of pneumatic head of polishing, only need rotate lower flange just can realize the installation of pneumatic head of polishing fixed to it is more convenient to make the installation of pneumatic head of polishing.

The utility model discloses further set up to: the mounting hole inner wall lower extreme has seted up the second wedge face, the direction slope of second wedge face lower extreme orientation keeping away from the mounting hole axis, the second wedge face and first wedge face butt.

By adopting the technical scheme, the contact area between the main shaft and the driving ring is increased by utilizing the second wedge-shaped surface, so that the stress at the contact position of the main shaft and the driving ring is dispersed, and the probability of damage to the contact position of the lower end of the main shaft and the driving ring is reduced.

The utility model discloses further set up to: the lower ends of the lock nozzle and the driving ring are jointly provided with a third wedge-shaped surface, one end, far away from the axis of the lock nozzle, of the third wedge-shaped surface inclines upwards, and the third wedge-shaped surface is abutted to the communicating port.

By adopting the technical scheme, the pressure between the lock nozzle and the lower flange is reduced by utilizing the third wedge-shaped surface, so that the friction force between the lock nozzle and the lower flange is reduced, and the abrasion between the lock nozzle and the lower flange is reduced.

The utility model discloses further set up to: and a fourth wedge-shaped surface is arranged at the upper end of the side wall of the communicating hole, the upper end of the fourth wedge-shaped surface inclines towards the direction far away from the axis of the communicating hole, and the fourth wedge-shaped surface is abutted against the third wedge-shaped surface.

Through adopting above-mentioned technical scheme, utilize the fourth wedge-shaped face to increase the frictional force between lock nib and the lower flange to reduced the pressure between flange and the third wedge-shaped face down, made lower flange and lock nib difficult production when using damage.

The utility model discloses further set up to: the bottom surface of the driving groove is coaxially fixed with a limiting ring, the lower end of the lock nozzle penetrates through the inner cavity of the limiting ring, and the upper end of the limiting ring is abutted against the lower end of the upper flange.

Through adopting above-mentioned technical scheme, utilize the spacing ring to limit the distance that the lower flange can upwards move to make the distance that lock mouth lower extreme lateral wall moved towards the lock mouth axis can not be too big, make the pneumatic pressure that polishes the head and receive can not too big.

The utility model discloses further set up to: and a plurality of vertically arranged anti-slip edges are fixed on the outer wall of the lower flange in the circumferential direction.

By adopting the technical scheme, the contact area between the hand and the lower flange is increased by utilizing the anti-slip ribs, so that the friction force between the lower flange and the hand is increased, and the lower flange is more convenient to rotate.

To sum up, the utility model discloses following beneficial effect has:

1. the rotating speed of the drill bit is increased by using the pneumatic grinding head, so that the drill bit is not easy to break when a small hole with the diameter less than 0.8 mm is machined;

2. the pneumatic polishing head is connected by the connecting mechanism, so that the pneumatic polishing head can be replaced.

Drawings

FIG. 1 is a perspective view of the present embodiment;

fig. 2 is a schematic diagram for showing the connection mechanism according to the present embodiment.

Description of the drawings: 1. a limiting mechanism; 13. an upper flange; 14. A lower flange; 141. a drive slot; 142. a communicating hole; 143. a fourth wedge-shaped surface; 15. bolt holes; 16. a limiting ring; 17. anti-slip edges; 2. a connecting mechanism; 21. a main shaft; 211. mounting holes; 212. a yielding groove; 213. a second wedge-shaped face; 22. locking the mouth; 221. connecting holes; 222. a drive ring; 223. a first wedge-shaped face; 224. an expansion joint; 225. a third wedge face; 3. a milling machine body; 31. a machine head; 32. a pneumatic polishing head; 33. an oil-water separator; 34. an electromagnetic valve; 35. an air pressure regulating switch; 36. and (4) dragging the chain.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The utility model provides a pneumatic high-speed main shaft of ordinary milling machine transformation system, as shown in figure 1, includes milling machine body 3 and the aircraft nose 31 of being connected with milling machine body 3, and aircraft nose 31 is not connected with drive drill bit pivoted motor and the chuck of clamping drill bit, and aircraft nose 31 lower extreme is connected with drive drill bit pivoted pneumatic head 32 of polishing, and pneumatic head 32 lower extreme of polishing is connected with the drill bit, and pneumatic head 32 upper end of polishing is connected with the air compressor machine through compression hose. Utilize the pneumatic rotational speed that polishes head 32 and increase the drill bit, promote the grinding force of drill bit, make the cutting of drill bit quicker, improve the efficiency of processing, the difficult emergence rupture when driling simultaneously improves the life of drill bit to the accurate location that utilizes milling machine itself is confirmed the position that the aperture was seted up, makes the position that the aperture was seted up more accurate.

The air outlet of the air compressor is connected with an oil-water separator 33 for separating oil impurities and water in the compressed air, and the compression hose is connected with the air outlet of the oil-water separator 33. The compression hose is also connected with an electromagnetic valve 34 for controlling the on-off of an inner cavity of the compression hose and an air pressure adjusting switch 35 for adjusting the air pressure, the air pressure adjusting switch 35 is located between the electromagnetic valve 34 and the pneumatic polishing head 32, and the air pressure adjusting switch 35 is used for adjusting the rotating speed of the pneumatic polishing head 32, so that different products can be processed at different rotating speeds, and the requirements of different ceramic processing can be met.

The upper end of the machine head 31 is fixedly connected with a drag chain 36, one end of the drag chain 36 is fixed with the machine head 31 through bolts, the compression hose penetrates through the drag chain 36, the compression hose is not easily abraded in the up-and-down reciprocating movement through the drag chain 36, and the service life of the compression hose is prolonged.

As shown in fig. 2, the head 31 is connected with a connecting mechanism 2 for connecting the pneumatic sanding head 32 and the head 31, and the connecting mechanism 2 includes a main shaft 21 fixedly connected with the head 31 using bolts and a lock nozzle 22 in a cylindrical shape for connecting the pneumatic sanding head 32 with the main shaft 21. The lower end surface of the main shaft 21 coaxially penetrates through the mounting hole 211, the upper end of the lock nozzle 22 is inserted into the mounting hole 211, and the outer wall of the lock nozzle 22 is attached to the inner wall of the connecting hole 221. The lower end of the lock nozzle 22 coaxially penetrates through a connecting hole 221, and the upper end of the pneumatic sanding head 32 is inserted into the connecting hole 221. The lower end of the outer wall of the lock nozzle 22 is integrally formed with a driving ring 222 which is coaxially arranged, the lower end surface of the driving ring 222 and the lower end surface of the lock nozzle 22 are in the same plane, an expansion joint 224 which is communicated with the connecting hole 221 penetrates through the outer wall of the driving ring 222 in the circumferential direction, and the expansion joint 224 penetrates through the lower end surface of the driving ring 222 and the lower end surface of the lock nozzle 22. The upper end surface of the driving ring 222 is provided with a first wedge surface 223, one end of the first wedge surface 223 far away from the axis of the lock nib 22 inclines downwards, the lower end of the first wedge surface 223 coincides with the lower end surface of the driving ring 222, and the first wedge surface 223 abuts against the lower end of the mounting hole 211. When the pneumatic sanding head 32 is inserted into the connecting hole 221 during installation, then upward thrust is applied to the lock nozzle 22, at this time, the lower end of the mounting hole 211 applies a force perpendicular to the first wedge-shaped surface 223 and towards the axis of the lock nozzle 22 to the side wall of the lower end of the lock nozzle 22, so that the side wall of the lower end of the lock nozzle 22 moves towards the axis of the lock nozzle 22 and the pneumatic sanding head 32 is fixed, and therefore the pneumatic sanding head 32 is assembled and disassembled.

As shown in fig. 2, the main shaft 21 is connected to a stopper mechanism 1 for driving the lock nozzle 22 to move upward, and the stopper mechanism 1 includes an annular upper flange 13 connected to the main shaft 21 and a cylindrical lower flange 14 detachably connected to the upper flange 13. The coaxial groove of stepping down 212 of having seted up of main shaft 21 lateral wall lower extreme, the groove of stepping down 212 runs through main shaft 21 lower terminal surface, goes up flange 13 and cup joints in main shaft 21 lower extreme and the inner wall of going up flange 13 and the lateral wall laminating that the groove 212 of stepping down is in vertical direction, goes up flange 13 outer wall upper end circumference and wears to be equipped with a plurality of bolt holes 15, all wears to be equipped with the bolt in the bolt hole 15, and the bolt passes upper flange 13 and main shaft 21 threaded connection. The upper end of the lower flange 14 is coaxially provided with a driving groove 141, the bottom surface of the driving groove 141 is coaxially penetrated with a communication hole 142, the lower end of the upper flange 13 is inserted into the driving groove 141, the lower end of the outer wall of the upper flange 13 is in threaded connection with the side wall of the driving groove 141, the bottom surface of the driving groove 141 is abutted against the lower end of the locking nozzle 22, and the pneumatic polishing head 32 passes through the connecting hole 221. The lower flange 14 is used for exerting upward thrust on the lock nozzle 22, so that the lock nozzle 22 moves upwards to fix the position of the pneumatic sanding head 32, the pneumatic sanding head 32 can be installed and fixed only by rotating the lower flange 14, and the pneumatic sanding head 32 is convenient to install.

As shown in fig. 2, only the lower opening of the mounting hole 211 is in abutment with the first wedge surface 223 during the upward movement of the lock nib 22, and at this time, the contact area between the two is small, and stress is concentrated on the lower opening of the mounting hole 211, which may cause damage to the lower opening of the mounting hole 211. Therefore, the lower end of the inner wall of the mounting hole 211 is provided with a second wedge-shaped surface 213, the lower end of the second wedge-shaped surface 213 inclines towards the direction far away from the axis of the mounting hole 211, the lower end of the second wedge-shaped surface is overlapped with the lower end surface of the main shaft 21, and the second wedge-shaped surface 213 is abutted to the first wedge-shaped surface 223. The contact area between the main shaft 21 and the drive ring 222 is increased by the second wedge surface 213, so that the stress at the contact position of the main shaft 21 and the drive ring 222 is dispersed, and the probability of damage to the contact position of the lower end of the main shaft 21 and the drive ring 222 is reduced.

As shown in fig. 2, in the process of pushing the lock nib 22 upward by the lower flange 14, the sidewall of the lower end of the lock nib 22 moves toward the axis of the lock nib 22, and at this time, since the lower end of the lock nib 22 abuts against the bottom surface of the driving groove 141, the friction between the lower end of the lock nib 22 and the bottom surface of the driving groove 141 is large, which is likely to cause wear, and the service life of the lock nib 22 and the lower flange 14 is reduced. Therefore, the lower end surface of the lock nib 22 and the lower end surface of the driving ring 222 are simultaneously provided with the third wedge surface 225, one end of the third wedge surface 225 far away from the axis of the lock nib 22 is cleaned upwards, and the third wedge surface 225 is abutted with the connecting hole 221. The third wedge surface 225 reduces the pressure between the lock nib 22 and the lower flange 14, thereby reducing the friction between the lock nib 22 and the lower flange 14 and reducing the wear between the lock nib 22 and the lower flange 14.

As shown in fig. 2, since the contact area between the lower flange 14 and the third wedge surface 225 is small, the pressure at the contact position between the lower flange 14 and the third wedge surface 225 is large, which is likely to cause damage to the lower flange 14 and the locking nib 22. Therefore, the upper end of the sidewall of the communication hole 142 is opened with the fourth wedge surface 143, the upper end of the fourth wedge surface 143 is inclined in a direction away from the axis of the communication hole 142, and the fourth wedge surface 143 abuts against the third wedge surface 225. The friction between the locking nib 22 and the lower flange 14 is increased by the fourth wedge-shaped surface 143, so that the pressure between the lower flange 14 and the third wedge-shaped surface 225 is reduced, and the lower flange 14 and the locking nib 22 are not easily damaged during use.

Since the sidewall of the lower end of the lock nib 22 moves toward the axis of the lock nib 22 when the lower flange 14 moves upward, when the distance that the lower flange 14 moves upward is too large, the diameter of the inner wall of the lower end of the lock nib 22 becomes too small, and the pneumatic sanding head 32 is damaged due to too much pressure. Therefore, the limiting ring 16 is coaxially welded on the bottom surface of the driving groove 141, the outer wall of the limiting ring 16 is attached to the inner wall of the driving groove 141, the upper end of the limiting ring is abutted to the lower end of the upper flange 13, and the lower end of the lock nozzle 22 penetrates through the inner cavity of the limiting ring 16. The distance that the lower flange 14 can move upward is limited by the stop collar 16 so that the distance that the sidewall of the lower end of the lock nib 22 moves toward the axis of the lock nib 22 is not excessive and the pressure on the pneumatic sanding head 32 is not excessive.

In order to make the rotation of the lower flange 14 more convenient, a plurality of anti-slip ribs 17 which are vertically arranged are integrally formed on the outer wall of the lower flange 14 in the circumferential direction, and the anti-slip ribs 17 are utilized to increase the contact area between a hand and the lower flange 14, so that the friction force between the lower flange 14 and the hand is increased, and the rotation of the lower flange 14 is more convenient.

The working principle is as follows:

the upper flange 13 is sleeved on the main shaft 21, then bolts penetrate through the upper flange 13 to be in threaded connection with the main shaft 21, then the lock nozzle 22 is placed in the mounting hole 211, the upper end of the pneumatic polishing head 32 is placed in the connecting hole 221, the lower flange 14 is in threaded connection with the upper flange 13, the lower flange 14 is rotated to move upwards, the side wall of the lower end of the lock nozzle 22 moves towards the axis of the lock nozzle 22, and the position of the pneumatic polishing head 32 is fixed through the lock nozzle 22.

The specific embodiments are only for explaining the present invention, and it is not limited to 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 of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a pneumatic high-speed main shaft of ordinary milling machine transformation system, includes milling machine body (3) and sets up aircraft nose (31) on milling machine body (3), its characterized in that: the nose (31) is connected with a pneumatic sanding head (32) which drives the drill bit to rotate.

2. The modified pneumatic high-speed spindle of a common milling machine according to claim 1, wherein: the pneumatic sanding machine is characterized in that the machine head (31) is connected with a connecting mechanism (2) for connecting the pneumatic sanding head (32) with the machine head (31), the connecting mechanism (2) comprises a main shaft (21) fixedly connected with the machine head (31) and a lock nozzle (22) for fixing the pneumatic sanding head (32), a mounting hole (211) is coaxially penetrated through the end surface of the main shaft (21), the lock nozzle (22) is inserted into the mounting hole (211), the outer wall of the lock nozzle (22) is attached to the inner wall of the mounting hole (211), a connecting hole (221) is penetrated through the lower end of the lock nozzle (22), the pneumatic sanding head (32) is inserted into the connecting hole (221), a driving ring (222) is coaxially fixed at the lower end of the outer wall of the lock nozzle (22), an expansion joint (224) communicated with the connecting hole (221) is circumferentially penetrated through the outer wall of the driving ring (222), and the lower end surface of the lock nozzle (22) and the lower end surface of the driving ring (, first wedge face (223) have been seted up to drive ring (222) upper end face, the one end downward sloping of lock mouth (22) axis is kept away from in first wedge face (223), first wedge face (223) and mounting hole (211) lower extreme butt, main shaft (21) are connected with drive lock mouth (22) rebound stop gear (1).

3. The modified pneumatic high-speed spindle of a common milling machine according to claim 2, wherein: stop gear (1) including coaxial last flange (13) of being fixed in main shaft (21) lower extreme and with last flange (13) detachable connection's lower flange (14), drive groove (141) have been seted up to lower flange (14) upper end, in drive groove (141) and both threaded connection are arranged in to upper flange (13) lower extreme, drive groove (141) bottom surface coaxial run through has intercommunicating pore (142), pneumatic grinding head (32) lower extreme passes connecting hole (221), just drive groove (141) bottom surface and lock mouth (22) lower extreme butt.

4. The pneumatic high-speed spindle modified from a common milling machine according to claim 3, wherein: second wedge face (213) have been seted up to mounting hole (211) inner wall lower extreme, second wedge face (213) lower extreme orientation is kept away from the direction slope of mounting hole (211) axis, second wedge face (213) and first wedge face (223) butt.

5. The modified pneumatic high-speed spindle of a common milling machine according to claim 4, wherein: the lower ends of the lock nozzle (22) and the driving ring (222) are jointly provided with a third wedge-shaped surface (225), one end, far away from the axis of the lock nozzle (22), of the third wedge-shaped surface (225) inclines upwards, and the third wedge-shaped surface (225) is abutted to the communication port.

6. The pneumatic high-speed spindle modified from a common milling machine according to claim 3, wherein: a fourth wedge surface (143) is arranged at the upper end of the side wall of the communication hole (142), the upper end of the fourth wedge surface (143) inclines towards the direction far away from the axis of the communication hole (142), and the fourth wedge surface (143) is abutted to the third wedge surface (225).

7. The pneumatic high-speed spindle modified from a common milling machine according to claim 3, wherein: the limiting ring (16) is coaxially fixed on the bottom surface of the driving groove (141), the lower end of the lock nozzle (22) penetrates through the inner cavity of the limiting ring (16), and the upper end of the limiting ring (16) is abutted against the lower end of the upper flange (13).

8. The pneumatic high-speed spindle modified from a common milling machine according to claim 3, wherein: a plurality of vertically arranged anti-slip ribs (17) are fixed on the outer wall of the lower flange (14) in the circumferential direction.