CN212823856U - Tapping device and tapping and drilling device with same - Google Patents

Abstract

The utility model discloses a tapping device, the test platform comprises a support, be provided with on the frame: the moving seat is arranged on the base in a sliding mode, and one end of the first rotating shaft is provided with a screw tap; the first rotating shaft is rotatably connected with the movable seat; the first driving device is used for driving the first rotating shaft to move, when the output end of the first driving device extends out, the first driving device is in contact with the moving seat and pushes the moving seat to move, and when the output end of the first driving device contracts, the first driving device is separated from the moving seat; the second driving device comprises a second rotating shaft and a driving piece, the driving piece is used for driving the second rotating shaft to rotate, the second rotating shaft is provided with a cavity, the first rotating shaft is embedded into the cavity and can move relative to the second rotating shaft, and the second rotating shaft can drive the first rotating shaft to rotate; one end of the elastic reset piece is connected with the movable seat, and the other end of the elastic reset piece is connected with the base and used for resetting the movable seat; the utility model provides a tapping device can avoid the screw tap twist-off.

Description

Tapping device and tapping and drilling device with same

Technical Field

The utility model relates to an attack and bore the field, in particular to attack tooth device and attack that has it and bore device.

Background

The existing workpiece needs tapping after drilling holes, a rotary motor drives a screw tap to rotate, the screw tap is driven to move forwards through a cylinder and the like and a linear driving device, and the screw tap starts tapping, however, when the screw tap retreats from the existing tapping device, the rotary motor needs to rotate reversely, and meanwhile, the linear driving device drives the screw tap to retreat backwards, due to the moment that the motor rotates reversely and the linear driving device moves reversely, the screw tap and components connected with the screw tap can continue to move forwards due to inertia, the force for driving the screw tap to retreat backwards and backwards through the linear driving device is larger and faster, and uncontrolled reaction force is generated instantaneously, so that the tail end of the screw hole is unsmooth or dead; meanwhile, the screw tap bears larger rigidity force and internal stress, so that the fatigue strength of the screw tap is reduced, the service life of the screw tap is shortened, and the screw tap is twisted off in the screw hole when serious.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tapping device can avoid the screw tap twist-off.

According to the utility model discloses attack tooth device, the test platform comprises a support, be provided with on the frame: the moving seat is arranged on the base in a sliding mode, and one end of the first rotating shaft is provided with a screw tap; the first rotating shaft is rotatably connected with the movable seat; the first driving device is used for driving the first rotating shaft to move, when the output end of the first driving device extends out, the first driving device is in contact with the moving seat and pushes the moving seat to move, and when the output end of the first driving device contracts, the first driving device is separated from the moving seat; the second driving device comprises a second rotating shaft and a driving piece, the driving piece is used for driving the second rotating shaft to rotate, the second rotating shaft is provided with a cavity, the first rotating shaft is embedded into the cavity and can move relative to the second rotating shaft, and the second rotating shaft can drive the first rotating shaft to rotate; and one end of the elastic resetting piece is connected with the movable seat, and the other end of the elastic resetting piece is connected with the base and used for resetting the movable seat.

According to the utility model discloses attack tooth device has following beneficial effect at least: firstly, the driving part drives the second rotating shaft to rotate, the second rotating shaft drives the first rotating shaft to rotate so as to drive the screw tap to rotate, meanwhile, the first driving device drives the moving seat to move so as to drive the first rotating shaft and the screw tap to move, when the screw tap attacks a certain depth into a workpiece, the first driving device and the driving part are simultaneously reversed, but at the moment of reversing of the driving part, rotating inertia can be generated, the first rotating shaft continues to feed under the driving of the rotating inertia, under the action of the elastic resetting piece, the elastic resetting piece can buffer the feeding amount caused by the rotating inertia, the screw tap can not feed a lot, due to the reverse rotation of the driving part, the screw tap begins to retreat, the moving seat is flexibly connected with the elastic resetting piece, therefore, a relatively small force is applied, then the tooth retreating moment is amplified through the existing spiral track, the flexible connection avoids the thread damage caused by overlarge pulling force, when the tooth retreating is finished, the tap continues tapping.

According to the embodiment of the utility model, the movable seat comprises an insulating block, an electric conductor is arranged in front of the insulating block and at the output end of the first driving device, and the movable seat also comprises an electromagnetic valve; the electric conductor is electrically connected with the electromagnetic valve, electrode plates are installed on two sides of the insulating block in the moving direction, when the electrode plates are in contact with the electric conductor, the electromagnetic valve is electrified, and the first driving device and the driving piece are reversed simultaneously.

According to the utility model discloses the embodiment, the electric conductor with remove the seat and have at least one can be by elastic compression.

According to an embodiment of the invention, the electrical conductor comprises a compressible portion and an electrically conductive portion.

According to the utility model discloses, the electric conductor is provided with the screw thread section, and through the screw thread section is connected on the frame.

According to the utility model discloses, be provided with the lug in the cavity of second pivot, first pivot is provided with the recess strip corresponding with the lug.

According to the utility model discloses the frame still includes the fixed block, elasticity reset the one end of piece with the fixed block is connected, the other end with the insulating block is connected.

According to the utility model discloses attack brill device of second aspect embodiment, including above-mentioned embodiment tapping device and at least one drilling equipment, drilling equipment installs on the frame.

According to the utility model discloses an attack brill device has following effect at least: the drilling device and the tapping device are arranged on the same machine base, so that machine integration can be realized, drilling and tapping can be realized on a workpiece.

According to the utility model discloses, drilling equipment is including the third pivot, the third pivot is connected with the drill bit, the driving piece drives the rotation of third pivot.

According to the embodiment of the utility model provides a, still including the left and right sides drive arrangement, front and back drive arrangement and the upper and lower drive arrangement that removes about the driving motor seat.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of the inside of a tapping and drilling device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the exterior of the tapping and drilling device according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the second shaft of FIG. 1;

fig. 4 is a schematic structural view of the first rotating shaft in fig. 1.

The reference signs are: the drill bit comprises a machine base 100, a fixed block 110, a bolt 120, a movable base 200, an insulating block 210, a first rotating shaft 300, a groove strip 310, a screw tap 400, a first driving device 500, a second rotating shaft 610, a convex block 611, a driving part 620, an elastic resetting part 700, an electric conductor 800, a machine cover 900, a third rotating shaft 1100 and a drill bit 1200.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, top, bottom, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless explicitly defined otherwise, the words such as setting, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention by combining the specific contents of the technical solutions.

A tapping device according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

According to the utility model discloses a tapping device, including frame 100, be provided with on the frame 100: a movable base 200 slidably mounted on the base 100, a first rotary shaft 300 having a tap 400 mounted at one end thereof; the first rotating shaft 300 is rotatably connected with the movable base 200; the first driving device 500 is used for driving the first rotating shaft 300 to move, when the output end of the first driving device 500 extends out, the first driving device contacts with the moving seat 200 and pushes the moving seat 200 to move, and when the output end of the first driving device 500 contracts, the first driving device is separated from the moving seat 200; the second driving device comprises a second rotating shaft 610 and a driving part 620, the driving part 620 is used for driving the second rotating shaft 610 to rotate, the second rotating shaft 610 is provided with a cavity, the first rotating shaft 300 is embedded in the cavity and can move relative to the second rotating shaft 610, and the second rotating shaft 610 drives the first rotating shaft 300 to rotate; the elastic reset member 700 has one end connected to the movable base 200 and the other end connected to the base 100, and is used to reset the movable base 200.

Firstly, the driving part 620 drives the second rotating shaft 610 to rotate, the second rotating shaft 610 drives the first rotating shaft 300 to rotate and further drive the screw tap 400 to rotate, meanwhile, the first driving device 500 drives the movable seat 200 to move and further drive the first rotating shaft 300 and the screw tap 400 to move, when the screw tap 400 taps a certain depth into a workpiece, the first driving device 500 and the driving part 620 are simultaneously reversed, but at the moment of reversing the driving part 620, rotational inertia is generated, the first rotating shaft 300 continues to feed under the driving of the rotational inertia, under the action of the elastic resetting part 700, the elastic resetting part 700 buffers the feed amount caused by the rotational inertia, the screw tap 400 is ensured not to feed much, the screw tap 400 starts to retreat due to the reversal of the driving part 620, the movable seat 200 is flexibly connected with the elastic resetting part 700, therefore, a relatively small force is applied, and then the retreat moment is amplified through the existing spiral track to retreat the screw tap 400 successfully retreats, the flexible connection avoids the phenomenon that the screw thread is damaged due to overlarge pulling force and avoids the phenomenon that the fatigue strength of the screw tap 400 is reduced due to the fact that the screw tap 400 bears large rigid force and internal stress, the service life is shortened, the screw tap 400 is twisted off in a screw hole seriously, when the screw tap is retreated, the driving piece 620 and the first driving device 500 are reversed again, the screw tap 400 continues to tap, and the reciprocating circulation is used for tapping and retreating.

It should be noted that, in this embodiment, the first driving device 500 is an air cylinder, and when a piston rod of the air cylinder extends, the first driving device contacts with the moving seat 200 and pushes the moving seat 200 to move, and when the piston rod of the air cylinder contracts, the first driving device is separated from the moving seat 200, so that when the tap 400 retreats, the piston rod does not push against the moving seat 200 to affect the retreating of the tap 400; in other embodiments, the first driving device 500 may also adopt a transmission mode such as an electric push rod, a screw rod slider mechanism, or a motor driving a gear rack; in this embodiment, the rotational power output of the second driving device is a brushless motor, all the rotating shafts are driven by a brushless motor rubber belt, and the rotating speed of each rotating shaft is changed by the size of the driven wheel at the end of the rotating shaft. In this embodiment, the elastic restoring member 700 is a tension spring, one end of which is installed on the movable base 200 and the other end of which is installed on the base 100 on the side away from the advancing direction of the movable base 200; of course, in other embodiments, the elastic restoring member 700 may also be a compression spring, one end of which is connected to the movable base 200 and the other end of which is connected to the base 100 on the forward direction side of the movable base 200, when the movable base 200 advances, the compression spring is compressed, and when the screw tap 400 retracts under the elastic force of the compression spring; of course, in other embodiments, the elastic restoring member 700 may be other elastic members such as rubber bands.

In some embodiments of the present invention, the movable base 200 includes an insulating block 210, and the electric conductor 800 and the electromagnetic valve are disposed in front of the insulating block 210 and at the output end of the first driving device 500; the electric conductor 800 is electrically connected to the solenoid valve, electrode pads are installed on both sides of the insulating block 210 in the moving direction, and when the electrode pads are in contact with the electric conductor 800, the solenoid valve is energized, and the first driving device 500 and the driving member 620 are simultaneously reversed. Specifically, electrode plates are mounted on the front and rear surfaces of the insulating block 210, when the electrode plates contact the conductor 800, a loop is formed, when the movable base 200 moves forward, the electrode plates on the insulating block 210 contact the conductor 800, the electromagnetic valve controls the driving member 620 and the first driving device 500 to reverse simultaneously, the output end of the first driving device 500 retracts and moves away from the movable base 200, at the same time, the screw tap 400 continues to feed forward under the action of rotational inertia, after the screw tap 400 is fed for a short time, the screw tap 400 starts to retreat under the action of the elastic resetting member 700 due to the reversing of the driving member 620, after the driving member 620 reverses, the electrode plates on the insulating block 210 contact the conductor 800 on the first driving device 500, the first driving device 500 and the driving member 620 reverse again, the driving member 620 and the output end of the first driving device 500 extend forward, the tap 400 starts tapping again, and the tapping and the tooth retreating are performed in a reciprocating cycle.

In some embodiments of the present invention, specifically, the base 100 further includes a base, a lateral plate vertically disposed on the base, and a support plate vertically disposed on the lateral plate, wherein the first driving device 500 is mounted on the support plate; the first driving device 500 is fixed on the base 100 by arranging a supporting plate, in some embodiments of the present invention, the movable base 200 includes a sliding base and an insulating block 210 arranged on the sliding base, and when the output end of the first driving device 500 pushes the insulating block 210 to move, the movable base 200 is driven to move; of course, in other embodiments, the movable base 200 may not include the insulation block 210, and the first driving device 500 directly drives the movable base 200 to move.

At least one of the conductive body 800 and the movable base 200 can be elastically compressed. In some embodiments of the present invention, specifically, the electrical conductor 800 includes a compressible portion and an electrically conductive portion; when the movable seat 200 moves forward, the electrode plate on the insulating block 210 contacts the conductive body 800, the driving part 620 and the first driving device 500 are reversed simultaneously, the output end of the first driving device 500 retracts and is far away from the movable seat 200, at the moment, the screw tap 400 continues to feed forward under the action of rotational inertia, the insulating block 210 compresses the compressible part of the conductive body 800 until the conductive body 800 cannot continue to feed forward, and therefore the conductive body 800 is provided with the compressible part, and the feeding amount caused by the rotational inertia is buffered. It is contemplated that in other embodiments, the dielectric block 210 may be configured to be resilient, and the conductive body 800 may be a rigid member, such that the dielectric block 210 is compressed when the dielectric block 210 moves forward due to rotational inertia, depending on the application. In other embodiments, the conductive body 800 may be configured to be movable, so that the tap 400 continues to be fed forward after the electrode plate of the insulating block 210 contacts the conductive body 800, and the conductive body 800 may move forward along with the insulating block 210, thereby avoiding the influence on the forward movement of the tap 400.

In some embodiments of the present invention, the conductive body 800 is provided with a threaded section and is connected to the base 100 through the threaded section; specifically, the length of the compressible portion is adjusted by providing a threaded section in the compressible portion, thereby determining the feed due to rotational inertia, and specifically, the length of the compressible portion is adjusted, and the feed due to rotational inertia is determined according to the length of the compressible portion when the insulation block 210 compresses the conductive body 800. The compressible portion may be made of an elastic material such as rubber, and in other embodiments, the threaded section is not disposed on the compressible portion, for example, the threaded section may be a common bolt 120, and a metal spring or the like is connected to an end of the bolt 120, and the threaded section may be conductive or compressible, and the length of the bolt 120 may be adjusted to adjust the feeding amount due to the rotational inertia.

In some embodiments of the present invention, the present invention further comprises a bearing sleeved on the first rotating shaft 300, the movable base 200 is provided with an inner hole, and the inner hole is tightly fitted with the bearing; so that the movable base 200 can drive the first rotating shaft 300 to move, and the first rotating shaft 300 can rotate relative to the movable base 200, although in other embodiments, the first rotating shaft 300 and the movable base 200 can also be rotationally connected through the structure of the groove and the protrusion 611.

In some embodiments of the present invention, the base 100 is provided with a guide rail, the guide rail is provided with a slider, the movable base 200 is disposed on the slider, and the friction generated when the movable base 200 is moved is reduced by disposing the guide rail and the slider.

As shown in fig. 3 and 4, in some embodiments of the present invention, a protrusion 611 is disposed in the cavity of the second rotating shaft 610, the first rotating shaft 300 is provided with a groove strip 310 corresponding to the protrusion 611, the second rotating shaft 610 can drive the first rotating shaft 300 to rotate through the structure of the protrusion 611 and the groove strip 310, the first rotating shaft 300 can slide in the second rotating shaft 610, specifically, the end of the second rotating shaft 610 extends into the inner hole of the movable seat 200, the second rotating shaft 610 does not contact with the inner hole of the movable seat 200, and therefore, when the movable seat 200 slides, the movable seat 200 can move back and forth along the second rotating shaft 610.

In some embodiments of the present invention, the present invention further comprises a fixing block 110, the fixing block 110 is disposed on the base 100, one end of the elastic reset member 700 is connected to the fixing block 110, and the other end is connected to the insulating block 210; specifically, a bolt 120 hole is formed in the fixing block 110, the bolt 120 is installed in the bolt 120 hole, a nut is installed on the bolt 120, and the tightness of the elastic return member 700 is adjusted by adjusting the bolt 120.

In some embodiments of the present invention, the present invention further comprises a hood 900, wherein the hood 900 covers the machine base 100; the components on the housing 100 are protected by the hood 900, and the components on the housing 100 are prevented from being damaged.

The working process of the tapping device of the embodiment is as follows: firstly, the driving member 620 drives the second rotating shaft 610 to rotate, the second rotating shaft 610 drives the first rotating shaft 300 to rotate, meanwhile, the first driving device 500 drives the moving seat 200 to move, the moving seat 200 drives the first rotating shaft 300 to move, the elastic resetting member 700 is stretched, when the moving seat 200 moves forwards, the electrode plate on the insulating block 210 is in contact with the electric conductor 800, the electromagnetic valve controls the driving member 620 to reverse simultaneously with the first driving device 500, the output end of the first driving device 500 retracts and is away from the moving seat 200, at the moment, the screw tap 400 continues to feed forwards under the action of the rotational inertia, after the short-time feeding is carried out, the insulating block 210 compresses the electric conductor 800, because the driving member 620 reverses, namely, the driving member 620 reverses, the screw tap 400 starts to retreat under the action force of the elastic resetting member 700, when the screw tap 400 drives the moving seat 200 and the insulating block 210 to move backwards, the electrode plate on the insulating block 210 is in contact with the electric conductor 800 on the, the electromagnetic valve controls the first driving device 500 and the driving member 620 to reverse, the driving member 620 rotates forwards and extends forwards with the output end of the first driving device 500, the tap 400 starts to tap, and the tapping and the tooth withdrawing are performed in a reciprocating cycle.

In some embodiments of the present invention, specifically, the insulation block is bakelite, the conductive body 800 in front of the insulation block 210 is a spring glass column, the first driving device 500 is a cylinder, the driving member 620 is a brushless motor, and the elastic restoring member 700 is a tension spring, when the first rotating shaft 300 reaches a specified position and height, the cylinder is ejected out to drive the moving seat 200 to feed forward, and the range of the cylinder diameter is selectable from 6 mm to 12 mm; when an electrode plate on the bakelite touches a front limiting spring glass column, the spring glass column can be adjusted within the range of 0-15 mm, when a contact instantaneous lead is connected, an electromagnetic valve controls a cylinder and a brushless motor to be simultaneously reversed, the reversing instantaneous generates rotary inertia so as to drive a first rotating shaft 300 to continue feeding, the spring glass column is flexibly limited, a pressure spring is arranged in the glass column, the buffer distance is 3-10mm, and the brushless motor and a screw tap 400 cannot be rigidly stopped due to inertia feeding; after the direction is changed, the first rotating shaft 300 retreats, because the movable base 200 is flexibly connected with the tension spring of the base 100, a relatively small force is applied to amplify the tooth retreating moment through the existing spiral track, the flexible connection avoids that the thread is damaged too fast due to overlarge tension force, when the tooth retreating is finished, the bakelite is contacted with the conductor 800 at the output end of the air cylinder, the lead is communicated with the brushless motor and the air cylinder to change the direction, the tooth is started to be tapped again, and the tapping and the tooth retreating are carried out in a reciprocating mode.

According to a tapping device and at least one drilling equipment in this embodiment, including the tapping device and at least one drilling equipment in above-mentioned embodiment, drilling equipment installs on frame 100, will tap tapping device and drilling equipment and install on same frame 100, realizes the machine integration, can realize drilling to the work piece and can be to tapping again, need explain that in some embodiments of the utility model, drilling equipment sets up a plurality ofly.

Drilling equipment is including third pivot 1100, and third pivot 1100 is connected with drill bit 1200, and driving piece 620 drives third pivot 1100 and rotates the utility model discloses an in some embodiments, tapping device and drilling equipment all drive by brushless motor, and tapping device and drilling equipment all drive by same driving piece 620, certainly in other embodiments, drilling equipment does not necessarily drive the rotation by brushless motor, also can rotate by motor drive third pivot 1100, and tapping device and drilling equipment do not all drive the rotation by brushless motor.

In some embodiments of the present invention, the present invention further comprises a left and right driving device, a front and back driving device, and an up and down driving device for driving the base 100 to move left and right; by installing the left and right driving device, the front and rear driving device and the up and down driving device, the drill bit 1200 or the screw tap 400 can be better aligned to the drilling position and the tapping position of the workpiece, and accurate tapping and drilling can be realized.

A tapping device according to an embodiment of the present invention is described in detail below in a specific embodiment with reference to fig. 1 to 4. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

As shown in fig. 1 to 4, a tapping device includes a housing 100, wherein the housing 100 is provided with: a movable base 200 slidably disposed on the base 100; a first rotating shaft 300, one end of which is provided with a screw tap 400, the first rotating shaft 300 being rotatably connected with the movable base 200; the first driving device 500 is used for driving the first rotating shaft 300 to move, when the output end of the first driving device 500 extends out, the first driving device contacts with the moving seat 200 and pushes the moving seat 200 to move, and when the output end of the first driving device 500 contracts, the first driving device is separated from the moving seat 200; the second driving device comprises a second rotating shaft 610 and a driving part 620, the driving part 620 is used for driving the second rotating shaft 610 to rotate, the second rotating shaft 610 is provided with a cavity, the first rotating shaft 300 is embedded in the cavity and can move relative to the second rotating shaft 610, and the second rotating shaft 610 drives the first rotating shaft 300 to rotate; an elastic reset member 700 having one end connected to the movable base 200 and the other end connected to the base 100 for resetting the movable base 200; the movable base 200 comprises an insulating block 210, a conductor 800 and an electromagnetic valve, wherein the conductor 800 is arranged in front of the insulating block 210; the electromagnetic valve is used for controlling the output end of the first driving device 500 to retract, the electric conductor 800 is electrically connected with the electromagnetic valve, the insulating block 210 is provided with an electrode plate, when the electrode plate is contacted with the electric conductor 800, the electromagnetic valve is electrified, and the output end of the first driving device 500 retracts; at least one of the conductor 800 and the movable base 200 can be elastically compressed; electrical conductor 800 includes a compressible portion and an electrically conductive portion; the conductor 800 is provided with a threaded section and is connected to the base 100 through the threaded section; the machine base 100 further comprises a fixed block 110, one end of the elastic reset piece 700 is connected with the fixed block 110, and the other end of the elastic reset piece is connected with the insulating block 210; the second shaft 610 has a protrusion 611 disposed in a cavity thereof, and the first shaft 300 has a groove 310 corresponding to the protrusion 611.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The tapping device is characterized by comprising a base (100), wherein the base (100) is provided with:

the movable seat (200) is arranged on the base (100) in a sliding manner;

a screw tap (400) is mounted at one end of the first rotating shaft (300), and the first rotating shaft (300) is rotatably connected with the moving seat (200);

the first driving device (500) is used for driving the first rotating shaft (300) to move, when the output end of the first driving device (500) extends out, the first driving device is in contact with the moving seat (200) and pushes the moving seat (200) to move, and when the output end of the first driving device (500) contracts, the first driving device is separated from the moving seat (200);

the second driving device comprises a second rotating shaft (610) and a driving part (620), the driving part (620) is used for driving the second rotating shaft (610) to rotate, the second rotating shaft (610) is provided with a cavity, the first rotating shaft (300) is embedded into the cavity and can move relative to the second rotating shaft (610), and the second rotating shaft (610) drives the first rotating shaft (300) to rotate;

and one end of the elastic reset piece (700) is connected with the movable seat (200), and the other end of the elastic reset piece is connected with the machine base (100) and is used for resetting the movable seat (200).

2. The tapping device according to claim 1, wherein said movable seat (200) comprises an insulating block (210), an electric conductor (800) arranged in front of said insulating block (210), and a solenoid valve; the electromagnetic valve is used for controlling the output end of the first driving device (500) to retract back, the electric conductor (800) is electrically connected with the electromagnetic valve, the insulating block (210) is provided with an electrode plate, when the electrode plate is in contact with the electric conductor (800), the electromagnetic valve is electrified, and the output end of the first driving device (500) retracts back.

3. Tapping device according to claim 2, wherein at least one of said electric conductor (800) and said movable seat (200) is elastically compressible.

4. A tapping device according to claim 3, characterised in that said electrical conductor (800) comprises a compressible portion and an electrically conductive portion.

5. Tapping device according to claim 2, wherein said electrical conductor (800) is provided with a threaded section and is connected to the machine base (100) by means of said threaded section.

6. The tapping device according to claim 2, wherein the housing (100) further comprises a fixing block (110), and one end of the elastic return member (700) is connected to the fixing block (110), and the other end is connected to the insulating block (210).

7. A tapping device according to any one of claims 1-6, characterised in that the second shaft (610) is provided with a projection (611) in its cavity, and that the first shaft (300) is provided with a groove strip (310) corresponding to the projection (611).

8. Tapping device, comprising a tapping device according to any one of claims 1-7 and at least one drilling device, which is mounted on a machine base (100).

9. Tapping and drilling device according to claim 8, wherein the drilling device comprises a third rotating shaft (1100), the drill bit (1200) is connected to the third rotating shaft (1100), and the driving member (620) drives the third rotating shaft (1100) to rotate.

10. The tapping and drilling device according to claim 8, further comprising a left-right driving device, a front-back driving device and an up-down driving device for driving the machine base (100) to move left and right.

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