CN211762627U

CN211762627U - Detachable numerical control hole milling machine

Info

Publication number: CN211762627U
Application number: CN201921460042.8U
Authority: CN
Inventors: 高裕达; 高仁松; 高振超; 马中益; 高从林; 康军宁; 汪忠发
Original assignee: Zhejiang Neteutech Co ltd
Current assignee: Zhejiang Neteutech Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-10-27
Anticipated expiration: 2029-09-04

Abstract

The utility model relates to a hole milling machine technical field just discloses a removable numerical control hole milling machine, including the hole milling machine main part, the top sliding connection of hole milling machine main part has the support slide bar, sliding connection has the slider on the support slide bar, the bottom fixed mounting of slider has motor and support frame. The utility model discloses a, the inserting groove of seting up on the milling cutter installation piece, make the clamp splice when the centre gripping inserting groove, milling cutter installation piece is difficult for taking off the cunning, through the insertion groove of seting up in milling cutter installation piece bottom, and the bottom of insertion groove inlays the threaded sleeve pipe of establishing, and the screwed pipe of the inside threaded connection of threaded sleeve pipe, and the bottom contact of screwed pipe has collet chuck, collet chuck's outside cover is equipped with the clamp sleeve, and clamp sleeve and screwed pipe threaded connection, and then through rotating the clamp sleeve, make collet chuck press from both sides tight drilling milling cutter, make the device reach the effect of being convenient for change drilling milling cutter, and then make the device reach the effect that the dismouting that presss from both sides tight drilling milling.

Description

Detachable numerical control hole milling machine

Technical Field

The utility model relates to a hole milling machine technical field specifically is a removable numerical control hole milling machine.

Background

The milling cutter is a rotary cutter which is used for milling and provided with one or more cutter teeth, the cutter teeth sequentially and intermittently cut off the allowance of a workpiece during operation, the milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting off the workpiece and the like on a milling machine, a hole is milled by using a special milling cutter, the hole milling cutter can be used on the milling machine and a boring machine, but the hole milling cutter is generally used for a small amount, wherein the hole milling machine is used for punching a material piece by using the milling cutter on a numerical control machine, the hole milling machine is used for punching in glass production and manufacturing, and the hole milling machine is best for punching glass due to the fragile characteristic of the glass.

Numerical control hole milling machine on the existing market mainly develops to the functionality, has the point location accuracy, and feed control is better, the advantage of difficult cutter rolling, and drilling in the hole milling machine mainly uses and bores milling cutter, because the size of drilling may be inconsistent, need use different and bore milling cutter and bore, but in the in-service use process, the dismouting of boring milling cutter holder is inconvenient relatively, for this reason we propose a removable numerical control hole milling machine to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a removable numerical control hole milling machine possesses advantages such as the dismouting of brill milling cutter seat is convenient relatively, has solved the relatively inconvenient problem of dismouting of brill milling cutter seat.

(II) technical scheme

For the purpose that realizes the dismouting of above-mentioned brill milling cutter seat is convenient relatively, the utility model provides a following technical scheme: a detachable numerical control hole milling machine comprises a hole milling machine body, wherein a supporting sliding rod is connected to the top of the hole milling machine body in a sliding mode, a sliding block is connected to the supporting sliding rod in a sliding mode, a motor and a supporting frame are fixedly mounted at the bottom of the sliding block, the motor is located on the inner side of the supporting frame, a rotating block is connected to the bottom of the supporting frame in a rotating mode, the rotating block penetrates through the supporting sliding block and extends to the inner side of the supporting frame, an output shaft of the motor is fixedly connected with the top of the rotating block, an adjusting cavity is formed in the rotating block, a threaded disc is connected to the inner portion of the adjusting cavity in a rotating mode, clamping blocks which are evenly distributed are connected to the bottom of the rotating block in a sliding mode, a rack is formed in the tops of the clamping blocks, the tops of the clamping blocks extend to the inner portion of the adjusting cavity and are meshed with the threaded, the left end of the threaded rod is sleeved with a rotating gear fixedly connected with the threaded rod, the bottom of the rotating gear is meshed with the threaded disc, the threaded rod is sleeved with a limiting ring in threaded connection with the threaded rod, the back of the limiting ring is in contact with a rotating block, the bottom of the rotating block is provided with a square groove, the bottom of the rotating block is provided with a milling cutter mounting block, the milling cutter mounting block is provided with inserting grooves which are arranged equidistantly, the top of the milling cutter mounting block is fixedly provided with a square limiting block, the bottom of the clamping block extends into the inserting grooves, the top of the square limiting block extends into the square groove, the bottom of the milling cutter mounting block is provided with an inserting groove, the bottom of the inserting groove is embedded with a threaded sleeve, the threaded sleeve is in threaded connection with a threaded pipe, the bottom of the threaded pipe extends out of the inserting groove, and the bottom of the, the outer side of the spring chuck is sleeved with a clamping sleeve, the inner side of the clamping sleeve is in threaded connection with the outer side of the bottom of the threaded pipe, the spring chuck is in contact with the threaded pipe, a drilling milling cutter is inserted into the milling cutter mounting block, and the top of the drilling milling cutter sequentially penetrates through the clamping sleeve, the spring chuck and the threaded pipe and extends to the insertion groove.

Preferably, a dust cover is fixedly mounted at the bottom of the sliding block, and the motor is located inside the dust cover.

Preferably, a bearing is fixedly installed at the joint of the threaded rod and the rotating block, and the front section of the clamping block is L-shaped.

Preferably, the support frame comprises two support plates, the tops of the two support plates are fixedly connected with the sliding block, a support block is fixedly connected between the two support plates, a support groove is formed in the bottom of the support block, the top of the support groove extends to the top of the support block, and the inside of the support groove is rotatably connected with the rotating block.

Preferably, the front-view cross sections of the support groove and the rotating block are in a cross shape, and the support groove is attached to the rotating block.

Preferably, the threaded disc comprises a rotating disc, a socket-shaped strip is arranged at the bottom of the rotating disc, the bottom of the socket-shaped strip is meshed with the clamping block, a threaded ring is fixedly mounted at the top of the rotating disc, and the right side of the top of the threaded ring is meshed with the rotating gear.

Preferably, the number of the clamping blocks is not less than three.

(III) advantageous effects

Compared with the prior art, the utility model provides a removable numerical control hole milling machine possesses following beneficial effect:

1. the detachable numerical control hole milling machine comprises a support slide rod arranged at the top of a hole milling machine main body, a support slide block sliding on the support slide rod, a motor for mounting the support slide block and capable of driving a rotating block to rotate, wherein the bottom of the support slide block is connected with a support frame, the support rotating block is provided with an adjusting cavity through the inside, and a threaded disc is rotatably connected in the adjusting cavity and is rotatably connected with a threaded rod, the left side of the rotating block is rotatably connected with a rotating gear, the rotating gear is driven by rotating the threaded rod so as to drive a threaded disc meshed with the rotating gear, the bottom of the rotating block is slidably connected with evenly distributed clamping blocks, racks are fixedly mounted at the tops of the clamping blocks, the clamping blocks are meshed with the threaded disc through the racks, so that when the threaded rod is rotated, the clamping blocks can be driven by the threaded disc, the clamping blocks can clamp a milling cutter mounting block, and the device can achieve the purpose of conveniently dismounting and, make the device dismouting relatively convenient, the inserting groove of seting up on the milling cutter installation piece, make the clamp splice when centre gripping inserting groove, the milling cutter installation piece is difficult for taking off the cunning, and through the spacing ring, spacing threaded rod, make the threaded rod be difficult for taking off the cunning, the clamping stability of device has been increased, through the insertion groove of seting up in milling cutter installation piece bottom, and the threaded bush of establishing is inlayed to the bottom of insertion groove, and the screwed pipe of the inside threaded connection of threaded bush, and the bottom contact of screwed pipe has collet chuck, collet chuck's outside cover is equipped with the clamp sleeve, and collet chuck and screwed pipe threaded connection, and then through rotating the clamp sleeve, make collet chuck press from both sides tight drilling milling cutter, make the device reach the effect of being convenient for changing drilling milling cutter, and then make the device reach the effect.

2. This removable numerical control hole milling machine through the dust cover of slider bottom installation, plays the guard action to the motor for the motor is difficult for receiving the infringement of outside dust and production waste material, and the dust cover plays certain supporting role to the motor.

3. This removable numerical control hole milling machine through the bearing at threaded rod and turning block junction fixed mounting for the threaded rod is difficult for producing wearing and tearing with the turning block at the rotation in-process, thereby has increased the life of device, and the clamp splice is L shape, makes the clamp splice when centre gripping milling cutter installation piece, and the bottom of clamp splice can extend to the inside of inserting groove, thereby makes device centre gripping milling cutter installation piece stable, is difficult for producing the desliding.

4. The detachable numerical control hole milling machine supports the rotating block through the supporting frame arranged at the bottom of the sliding block, and the supporting groove plays a supporting role in supporting the rotating block; support the groove and all be the cross with the turning block through setting up for the turning block when rotating through supporting the groove, support the groove and play the support limiting displacement to the turning block, make the turning block difficult for taking off the cunning, thereby increased the life of device.

Drawings

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

FIG. 2 is a schematic side sectional view of the connecting structure of the support slide bar and the slide block of the present invention;

FIG. 3 is an enlarged view of a portion A of the structure of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure B of FIG. 3 according to the present invention;

FIG. 5 is a schematic top view of the connection between the rotating disc and the threaded ring according to the present invention;

fig. 6 is a schematic top sectional view of the clamping sleeve structure of the present invention.

The reference numbers in the figures illustrate:

1. a hole milling machine body; 2. supporting the sliding rod; 3. a slider; 4. an electric motor; 5. a support frame; 501. a support plate; 502. a support block; 503. a support groove; 6. a dust cover; 7. a bearing; 8. rotating the block; 9. an adjustment chamber; 10. a threaded disc; 1001. rotating the disc; 1002. a dimple-shaped strip; 1003. a threaded ring; 11. a clamping block; 12. a rack; 13. a threaded rod; 14. a rotating gear; 15. a limiting ring; 16. a square groove; 17. a milling cutter mounting block; 18. inserting grooves; 19. a square limiting block; 20. inserting the groove; 21. a threaded bushing; 22. a threaded pipe; 23. a collet chuck; 24. a clamping sleeve; 25. a drill milling cutter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a detachable numerical control hole milling machine comprises a hole milling machine main body 1, a supporting slide rod 2 is slidably connected to the top of the hole milling machine main body 1, a slide block 3 is slidably connected to the supporting slide rod 2, a motor 4 and a support frame 5 are fixedly installed at the bottom of the slide block 3, the motor 4 is located on the inner side of the support frame 5, a rotating block 8 is rotatably connected to the bottom of the support frame 5, the rotating block 8 penetrates through and extends to the inner side of the support frame 5, an output shaft of the motor 4 is fixedly connected to the top of the rotating block 8, an adjusting cavity 9 is formed in the rotating block 8, a threaded disc 10 is rotatably connected to the inner side of the adjusting cavity 9, clamping blocks 11 are uniformly distributed and slidably connected to the bottom of the rotating block 8, a rack 12 is formed at the top of the clamping block 11, the top of the clamping block 11 extends to the inner side of the adjusting cavity 9 and, the left end of the threaded rod 13 penetrates through the rotating block 8 and extends to the adjusting cavity 9, the left end of the threaded rod 13 is sleeved with a rotating gear 14 fixedly connected with the threaded rod, the bottom of the rotating gear 14 is meshed with the threaded disc 10, the threaded rod 13 is sleeved with a limiting ring 15 in threaded connection with the threaded rod, the back of the limiting ring 15 is in contact with the rotating block 8, the bottom of the rotating block 8 is provided with a square groove 16, the bottom of the rotating block 8 is provided with a milling cutter mounting block 17, the milling cutter mounting block 17 is provided with inserting grooves 18 arranged equidistantly, the top of the milling cutter mounting block 17 is fixedly provided with a square limiting block 19, the bottom of the clamping block 11 extends to the inside of the inserting groove 18, the top of the square limiting block 19 extends to the inside of the square groove 16, the bottom of the milling cutter mounting block 17 is provided with an inserting groove 20, the bottom of the inserting groove, the bottom of a threaded pipe 22 extends out of an insertion groove 20, a spring chuck 23 is arranged at the bottom of the insertion groove 20, a clamping sleeve 24 is sleeved on the outer side of the spring chuck 23, the inner side of the clamping sleeve 24 is in threaded connection with the outer side of the bottom of the threaded pipe 22, the spring chuck 23 is in contact with the threaded pipe 22, a drilling milling cutter 25 is inserted into a milling cutter mounting block 17, the top of the drilling milling cutter 25 sequentially penetrates through the clamping sleeve 24, the spring chuck 23 and the threaded pipe 22 and extends to the insertion groove 20, a supporting slide rod 2 is arranged at the top of a hole milling machine body 1, a supporting slide block 3 slides on the supporting slide rod 2, a motor 4 arranged on the supporting slide block 3 can drive a rotating block 8 to rotate, the bottom of the supporting slide block 3 is connected with a supporting frame 5, the rotating block 8 is supported, an adjusting cavity 9 is arranged in the rotating block 8, a threaded disc 10 is rotatably connected, and the left end of the threaded rod 13 is rotatably connected with a rotating gear 14, the rotating gear 14 is driven by rotating the threaded rod 13, so as to drive a threaded disc 10 meshed with the rotating gear 14, the bottom of the rotating block 8 is connected with evenly distributed clamping blocks 11 in a sliding way, and the top of the clamping block 11 is fixedly provided with a rack 12, so that the clamping block 11 is meshed with the threaded disc 10 through the rack 12, so that when the threaded rod 13 is rotated, the clamping block 11 can be driven by the threaded disc 10, so that the clamping block 11 can clamp a milling cutter mounting block 17, so that the device can achieve the purpose of conveniently dismounting and mounting the milling cutter mounting block 17, the device is relatively convenient to dismount and mount, the inserting groove 18 is formed in the milling cutter mounting block 17, when the clamping block 11 clamps the inserting groove 18, the milling cutter mounting block 17 is not easy to slip, and the threaded rod 13 is not easy to slip by a limiting ring 15 and the limiting threaded, the drilling milling cutter is characterized in that the insertion groove 20 is formed in the bottom of the milling cutter mounting block 17, the threaded sleeve 21 is embedded in the bottom of the insertion groove 20, the threaded pipe 22 is in threaded connection with the inside of the threaded sleeve 21, the bottom of the threaded pipe 22 is in contact with the spring chuck 23, the clamping sleeve 24 is sleeved on the outer side of the spring chuck 23, the clamping sleeve 24 is in threaded connection with the threaded pipe 22, the spring chuck 23 is enabled to clamp the drilling milling cutter 25 by rotating the clamping sleeve 24, the device achieves the effect of facilitating replacement of the drilling milling cutter 25, the device achieves the effect of facilitating disassembly and assembly of clamping the drilling milling cutter 25, and the motor 4 is SCS2332 in model.

Furthermore, the bottom fixed mounting of slider 3 has dust cover 6, and motor 4 is located the inside of dust cover 6, through the dust cover 6 of slider 3 bottom installation, plays the guard action to motor 4 for motor 4 is difficult for receiving the infringement of outside dust and production waste, and dust cover 6 plays certain supporting role to motor 4, thereby has increased the practicality of device.

Further, threaded rod 13 and turning block 8's junction fixed mounting has bearing 7, clamping block 11's front view cross-section is the L font, through bearing 7 at threaded rod 13 and turning block 8 junction fixed mounting, make threaded rod 13 rotate the in-process, be difficult for producing wearing and tearing with turning block 8, thereby increased the life of device, and clamping block 11 is the L shape, make clamping block 11 when centre gripping milling cutter installation piece 17, clamping block 11's bottom extensible to inserting groove 18's inside, thereby make device centre gripping milling cutter installation piece 17 stable, be difficult for producing the sideslip, the stability of device has been increased.

Further, support frame 5 includes two backup pads 501, the top of two backup pads 501 all with slider 3 fixed connection, fixedly connected with supporting shoe 502 between the backup pad 501, supporting groove 503 has been seted up to the bottom of supporting shoe 502, the top of supporting groove 503 extends to the top of supporting shoe 502, the inside and the turning block 8 of supporting groove 503 rotate to be connected, through the support frame 5 of installing in slider 3 bottom, support turning block 8, and supporting groove 503 plays the supporting role to turning block 8, thereby make turning block 8's rotation relatively stable, be difficult for producing the skew, the service life of device has been improved.

Further, the cross section of looking just forward of support groove 503 and turning block 8 all is cross shape, supports groove 503 and turning block 8 and laminates mutually, supports groove 503 and turning block 8 and all is the cross through setting up for turning block 8 is when rotating through supporting groove 503, supports groove 503 and plays support limiting displacement to turning block 8, makes turning block 8 be difficult for taking off the cunning, thereby has increased the life of device.

Further, the thread disc 10 includes the rolling disc 1001, nest shape strip 1002 has been seted up to the bottom of rolling disc 1001, the bottom and the 11 meshing of clamp splice of nest shape strip 1002, the top fixed mounting of rolling disc 1001 has screw thread ring 1003, the right side and the 14 meshing of rotating gear at screw thread ring 1003 top, nest shape strip 1002 seted up through rolling disc 1001 bottom, drive clamp splice 11, and the screw thread ring 1003 through rolling disc 1001 top fixed mounting, meshing rotating gear 14, thereby make rotating gear 14 pass through screw thread ring 1003 and drive thread disc 10, make the device reach the purpose that the structure is simple relatively, the cost of manufacture of device has been reduced.

Furthermore, the number of the clamping blocks 11 is not less than three, so that the clamping effect of the clamping blocks 11 for clamping the milling cutter mounting block 17 is relatively good, the device achieves the effect of stable clamping, and the stability of the device is improved.

The working principle is as follows: the supporting slide rod 2 is arranged on the top of the hole milling machine main body 1, the supporting slide block 3 slides on the supporting slide rod 2, the motor 4 for mounting the supporting slide block 3 can drive the rotating block 8 to rotate, the bottom of the supporting slide block 3 is connected with the supporting frame 5, the supporting rotating block 8 is supported, the rotating block 8 is internally provided with an adjusting cavity 9, and a threaded disc 10 is rotatably connected in the adjusting cavity 9, the left side of the rotating block 8 is rotatably connected with a threaded rod 13, the left end of the threaded rod 13 is rotatably connected with a rotating gear 14, the rotating gear 14 is driven by rotating the threaded rod 13, so as to drive a threaded disc 10 meshed with the rotating gear 14, the bottom of the rotating block 8 is slidably connected with clamping blocks 11 which are uniformly distributed, a rack 12 is fixedly arranged on the top of the clamping block 11, the clamping block 11 is meshed with the threaded disc 10 through the rack 12, so that when the threaded rod 13 is rotated, so that the clamping block 11 can clamp the milling cutter mounting block 17, thereby the device can achieve the purpose of conveniently dismounting and mounting the milling cutter mounting block 17, the device is relatively convenient to dismount and mount, the insertion groove 18 is formed on the milling cutter mounting block 17, the milling cutter mounting block 17 is not easy to slip when the clamping block 11 clamps the insertion groove 18, the threaded rod 13 is not easy to slip through the limiting ring 15 and the limiting threaded rod 13, the clamping stability of the device is improved, the insertion groove 20 is formed at the bottom of the milling cutter mounting block 17, the threaded sleeve 21 is embedded at the bottom of the insertion groove 20, the threaded pipe 22 is in threaded connection with the inside of the threaded sleeve 21, the bottom of the threaded pipe 22 is contacted with the spring chuck 23, the clamping sleeve 24 is sleeved on the outer side of the spring chuck 23, the clamping sleeve 24 is in threaded connection with the threaded pipe 22, and further, the clamping sleeve 24 is rotated to enable the spring chuck 23 to clamp the drilling, the device has the advantages that the effect of conveniently replacing the drilling milling cutter 25 is achieved, the device further has the effect of conveniently clamping the drilling milling cutter 25 in a dismounting manner, and the problem that the drilling milling cutter holder is inconvenient in dismounting is solved.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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.

Claims

1. The utility model provides a removable numerical control hole milling machine, includes hole milling machine main part (1), its characterized in that: the top sliding connection of hole milling machine main part (1) has support slide bar (2), sliding connection has slider (3) on support slide bar (2), the bottom fixed mounting of slider (3) has motor (4) and support frame (5), motor (4) are located the inboard of support frame (5), the bottom of support frame (5) is rotated and is connected with turning block (8), the inboard that runs through and extend to support frame (5) of turning block (8), the output shaft and the top fixed connection of turning block (8) of motor (4), regulation chamber (9) have been seted up to the inside of turning block (8), the inside rotation of regulation chamber (9) is connected with threaded disc (10), the bottom sliding connection of turning block (8) has evenly distributed clamp splice (11), rack (12) have been seted up at the top of clamp splice (11), the top of the clamping block (11) extends to the inside of the adjusting cavity (9) and is meshed with the threaded disc (10), the left end of the rotating block (8) is rotatably connected with a threaded rod (13), the left end of the threaded rod (13) penetrates through the rotating block (8) and extends to the adjusting cavity (9), the left end of the threaded rod (13) is sleeved with a rotating gear (14) fixedly connected with the threaded rod, the bottom of the rotating gear (14) is meshed with the threaded disc (10), the threaded rod (13) is sleeved with a limiting ring (15) in threaded connection with the threaded rod, the back of the limiting ring (15) is in contact with the rotating block (8), the bottom of the rotating block (8) is provided with a square groove (16), the bottom of the rotating block (8) is provided with milling cutter mounting blocks (17), the milling cutter mounting blocks (17) are provided with insertion grooves (18) which are arranged at equal intervals, and the top of the milling cutter mounting blocks (17) is fixedly provided with a square limiting block (19), the bottom of the clamping block (11) extends to the inside of the insertion groove (18), the top of the square limiting block (19) extends to the inside of the square groove (16), the bottom of the milling cutter mounting block (17) is provided with an insertion groove (20), the bottom of the insertion groove (20) is embedded with a threaded sleeve (21), the threaded sleeve (21) is in threaded connection with a threaded pipe (22), the bottom of the threaded pipe (22) extends out of the insertion groove (20), the bottom of the insertion groove (20) is provided with a spring chuck (23), the outer side of the spring chuck (23) is sleeved with a clamping sleeve (24), the inner side of the clamping sleeve (24) is in threaded connection with the outer side of the bottom of the threaded pipe (22), the spring chuck (23) is in contact with the threaded pipe (22), a drilling milling cutter (25) is inserted into the inside of the milling cutter mounting block (17), and the top of the drilling milling cutter (25) sequentially penetrates through the clamping sleeve (, A spring clamping head (23), a threaded pipe (22) and extends to the insertion groove (20).

2. The detachable numerical control hole milling machine according to claim 1, characterized in that: the bottom of slider (3) fixed mounting has dust cover (6), motor (4) are located the inside of dust cover (6).

3. The detachable numerical control hole milling machine according to claim 1, characterized in that: the bearing (7) is fixedly installed at the joint of the threaded rod (13) and the rotating block (8), and the front view section of the clamping block (11) is L-shaped.

4. The detachable numerical control hole milling machine according to claim 1, characterized in that: the supporting frame (5) comprises two supporting plates (501), the tops of the two supporting plates (501) are fixedly connected with the sliding block (3), supporting blocks (502) are fixedly connected between the supporting plates (501), supporting grooves (503) are formed in the bottoms of the supporting blocks (502), the tops of the supporting grooves (503) extend to the tops of the supporting blocks (502), and the insides of the supporting grooves (503) are rotatably connected with the rotating block (8).

5. A removable numerical control hole milling machine according to claim 4, characterized in that: the front-view cross sections of the supporting groove (503) and the rotating block (8) are in a cross shape, and the supporting groove (503) is attached to the rotating block (8).

6. The detachable numerical control hole milling machine according to claim 1, characterized in that: the thread disc (10) comprises a rotating disc (1001), a socket-shaped strip (1002) is formed in the bottom of the rotating disc (1001), the bottom of the socket-shaped strip (1002) is meshed with the clamping block (11), a thread ring (1003) is fixedly mounted at the top of the rotating disc (1001), and the right side of the top of the thread ring (1003) is in threaded connection with the rotating gear (14).

7. The detachable numerical control hole milling machine according to claim 1, characterized in that: the number of the clamping blocks (11) is not less than three.