Automatic screw tapping device

Abstract

The application belongs to the field of tapping device, in particular to a screw automatic tapping device, which comprises a base, the top of the base is fixedly connected with a mounting seat, the top of the mounting seat is fixedly connected with a first air cylinder, the output end of the first air cylinder is fixedly connected with a support plate, the top of the base is provided with a positioning rod which is slidingly connected with the support plate, the support plate is provided with a first sliding plate, the bottom of the first sliding plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a connecting pipe, the bottom of the connecting pipe is fixedly connected with a tap, the bottom shell of the first motor is fixedly connected with a water inlet disc, one side of the water inlet disc is communicated with a water inlet pipe, through the cooperation of the water inlet pipe and the water inlet disc, when the tap is used to tap the nut, water can be driven by a water pump to spray through the connecting pipe and the tap, so as to backflush the debris generated on the inner wall of the nut, so as to reduce the jamming and resistance of the tap caused by the accumulation of debris on the inner wall of the nut, and prolong the service life of the tap.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tapping device, and particularly relates to a screw automatic tapping device. BACKGROUND

[0002] A tapping machine is a machine tool for processing internal threads by using a tap, and belongs to widely used internal thread processing equipment. The tapping machine cuts a required threaded hole on a workpiece material through tap rotation and feeding, has the characteristics of high speed, high precision, and tapped threads that can pass tooth gauge detection, etc. The screw tapping machine, as a kind of forming machine tool, plays a key role in nut tapping.

[0003] In the prior art, there are innovations of screw tapping machines. For example, a screw tapping machine is disclosed in a Chinese patent with the publication number CN118926600A. The screw tapping machine sets the screw rod of the blocking piece with the extrusion sleeve, applies a downward force to the screw, and makes the screw head pass through the hole in the elastic washer. Then the screw freely falls, completes the tapping and discharging of the screw at the same time, makes the processes coherent during screw tapping operation, and effectively improves the tapping efficiency.

[0004] In the prior art, the screw tapping machine generally rotates the tap to tap the inner wall of the nut. In use and observation, it is found that the metal chips generated during the tapping process of the inner wall of the nut are easy to accumulate between the tap and the nut groove, which causes the tap to rotate to receive additional resistance, and thus shortens the service life of the tap.

[0005] Therefore, a screw automatic tapping device is proposed to solve the above problems. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the screw automatic tapping device comprises a base, a mounting seat is fixedly connected to the top of the base, a first air cylinder is fixedly connected to the top of the mounting seat, a support plate is fixedly connected to the output end of the first air cylinder, a positioning rod in sliding connection with the support plate is arranged on the top of the base, a first sliding plate is arranged on the support plate, a first motor is fixedly connected to the bottom of the first sliding plate, a connecting pipe is fixedly connected to the output end of the first motor, a tap is fixedly connected to the bottom of the connecting pipe, a water inlet is fixedly connected to the bottom of the shell of the first motor, the region inside the water inlet where the connecting pipe is located is provided with a plurality of holes, the water inlet is in communication with the connecting pipe, the connecting pipe is in communication with the tap, the surface of the tap is provided with a plurality of holes, a clamping assembly for fixing the nut is arranged on the top of the base, and the water inlet and the water inlet plate are matched to drive the water flow to be sprayed out through the connecting pipe and the tap by the water pump when the tap is used to tap the nut, so as to backflush the debris generated on the inner wall of the nut, reduce the jamming and resistance of the tap caused by the accumulation of debris on the inner wall of the nut, and prolong the service life of the tap.

[0008] Preferably, the clamping assembly comprises a fixed plate, the fixed plate is fixedly installed on the top of the base, a second motor is arranged on the bottom of the fixed plate, a disc is fixedly connected to the output end of the second motor, the disc is in rotary connection with the bottom of the fixed plate, a plurality of connecting rods are in rotary connection with the surface of the disc, the end portions of the connecting rods are in rotary connection with sliding blocks, the sliding blocks are in sliding connection with the fixed plate, a clamping plate is fixedly connected to one side of the sliding block, and a placing groove is arranged on the surface of the fixed plate and the clamping plate is located inside the placing groove; the second motor is started to drive the disc to drive the connecting rods to pull the clamping plate to clamp the nut, improve the convenience of clamping the nut by the device, realize the positioning of the nut before tapping, and improve the accuracy of the position of the nut during subsequent tapping.

[0009] Preferably, a drain pipe is in communication with the inner wall of the placing groove on the surface of the fixed plate, the drain pipe has an L-shaped structure, a box body is arranged at the end portion of the drain pipe, the box body is arranged on the top of the base, a connector is threadedly connected to the end portion of the drain pipe, a screen is fixedly connected to the bottom of the connector, and the water accumulated in the placing groove on the surface of the fixed plate can be discharged through the drain pipe, the waste water can be directly discharged into the box body through the drain pipe, the debris and impurities in the waste water can be intercepted by the screen when flowing, the screen can realize the solid-liquid separation of the waste water, the screen can be detached from the end portion of the drain pipe together with the screen by rotating the connector when the screen needs to be detached, and the screen can be conveniently cleaned or replaced, and the debris in the screen can be recycled.

[0010] Preferably, the first sliding plate and the support plate are in sliding connection; one side of the first sliding plate is fixedly connected with a second sliding plate; one side of the support plate is fixedly connected with a second air cylinder; the output end of the second air cylinder is in fixed connection with the second sliding plate; the second sliding plate is located between the first sliding plate and the second air cylinder; the bottom of the second sliding plate is fixedly connected with a sealing cover, and the sealing cover and the surface placing groove of the fixed plate are correspondingly arranged; the inner wall top of the sealing cover is fixedly connected with an air inlet disc; one side of the air inlet disc is communicated with an air inlet pipe, and the air inlet pipe penetrates through the sealing cover; the inner wall top of the air inlet disc is rotatably connected with a turbine; the bottom of the turbine is fixedly connected with an exhaust pipe; one side of the exhaust pipe facing the air inlet disc is provided with a plurality of holes; the bottom of the exhaust pipe is fixedly connected with a spray head, and the spray head is in a circular truncated cone structure; the side of the spray head is provided with a plurality of holes; after the tapping of the nut is completed by the tap, the first air cylinder can be started to reset it; after resetting, the second air cylinder can be started to drive the second sliding plate to move together with the first sliding plate, so that the first sliding plate moves away from the nut and the second sliding plate is coaxial with the nut; then the first air cylinder can be started repeatedly to drive the second sliding plate to move towards the nut with the sealing cover; the sealing cover can abut against the surface of the fixed plate and close the surface placing groove of the fixed plate; and the spray head can abut against the bottom of the surface placing groove of the fixed plate, and the size of the spray head is smaller than the size of the inner hole of the nut, so the exhaust pipe can be located inside the nut; at this time, it is the limit stroke of the first air cylinder; then the air pump connected to the end of the air inlet pipe can drive the high-pressure airflow to enter the air inlet disc through the air inlet pipe; the turbine can rotate under the action of the airflow due to the arc surface fins on the surface of the turbine; and the airflow can enter the exhaust pipe through the holes in the top of the exhaust pipe and be sprayed out from the side holes of the spray head; since the spray head is in a circular truncated cone shape, the airflow can be sprayed obliquely, on one hand, the airflow can flush out the waste water and debris remaining in the inner hole of the nut, realizing the air drying of the inner wall of the nut; on the other hand, at this time, the surface placing groove of the fixed plate is closed by the sealing cover, so the inside of the surface placing groove is in a positive pressure state under the action of the inflation of the spray head, therefore, the waste liquid originally remaining in the inner hole of the nut and the inner wall of the surface placing groove can be flushed out through the drain pipe, and the inner wall of the drain pipe can also be forcibly flushed by the air under the action of the positive pressure to reduce the possibility of blockage of the inner wall of the drain pipe by debris.

[0011] Preferably, a plurality of flow distribution plates are fixedly connected to the outer wall of the exhaust pipe, and the end of the flow distribution plate is in an arc shape; a plurality of openings are formed in the surface of the flow distribution plate; the top of the spray head is provided with a plurality of holes; by arranging the flow distribution plates, on one hand, the arc shape of the flow distribution plates can provide a guiding effect for the airflow sprayed out of the spray head, expanding the flow range of the airflow; on the other hand, the openings in the surface of the flow distribution plates can make the airflow sprayed out of the top of the spray head pass through the flow distribution plates, reducing the attachment of the debris remaining in the nut on the surface of the flow distribution plates.

[0012] Preferably, the first spring is fixed to the bottom of the inner wall of the nozzle; the top of the first spring is fixed with a ball, and the inner wall of the exhaust pipe is provided with a ball seat corresponding to the ball; by setting the first spring and the ball, the air is started to ventilate when the nozzle and the surface of the fixed plate placed in the slot are in contact, so that part of the waste liquid penetrates into the nozzle through the hole, at this time, the ball can be tightly attached to the top ball seat under the elastic force of the first spring to seal the nozzle, which can reduce the excessive penetration of waste water into the exhaust pipe, and after the air pump is started, the airflow can exert air pressure on the ball through the exhaust pipe, the ball can slide out of the ball seat under the action of air pressure, and the waste liquid penetrated into the nozzle can be flushed out.

[0013] Preferably, a semispherical cavity is formed in the inner wall of the ball, and the top of the ball is provided with an opening; an elastic cloth is fixed between the opening of the top of the ball and the ball seat; a filter core is fixed in the inner cavity of the ball; and the upper semispherical surface of the ball is provided with a plurality of holes; after the air pump is started, the airflow enters the inner cavity of the ball through the opening at the top of the ball, and then the ball slides out of the ball seat under the action of air pressure; the airflow flows through the filter core, and the filter core filters the airflow to reduce the particulate impurities that may be carried in the airflow; and the elastic cloth provides an additional pulling force for the resetting of the ball, facilitating the resetting action of the ball.

[0014] Preferably, an acceleration part is fixed to the inner wall of the exhaust pipe, and the end surface of the acceleration part is inclined; the bottom of the acceleration part is fixed to the ball seat; by setting the acceleration part, the flow rate of the airflow can be gradually increased when the airflow passes through the acceleration part, thereby improving the subsequent extrusion and cleaning effect of the airflow on the ball.

[0015] Preferably, a plurality of positioning pins are fixed to the bottom of the sealing cover; a plurality of positioning holes are formed in the surface of the fixed plate, and the end surfaces of the positioning holes and the positioning pins are chamfered; the positioning holes and the positioning pins are correspondingly arranged; by the cooperation of the positioning pins and the positioning holes, when the first cylinder is started to drive the sealing cover and the fixed plate to be connected, the sealing cover can move towards the positioning holes in the surface of the fixed plate with the positioning pins; since the end surfaces of the positioning pins and the positioning holes are chamfered, the positioning pins and the positioning holes can be accurately engaged, thereby improving the accuracy of the position of the sealing cover and the fixed plate when they are connected.

[0016] Preferably, a second spring is fixed to the bottom of the inner wall of the positioning hole; and a top plate is fixed to the top of the second spring; by setting the second spring and the top plate, when the positioning pin enters the inner part of the positioning hole, the top plate is compressed, and the second spring provides an elastic force to the top plate, so that the positioning pin can be subjected to an additional thrust when it slides out of the positioning hole, reducing the resistance of the positioning pin in the sliding process due to rust, waste liquid, etc. in the inner wall of the positioning hole.

[0017] The present application has the advantages that:

[0018] 1. The automatic screw tapping device, through the cooperation of the water inlet pipe and the water inlet disc, when the tap is tapping the nut, water can be sprayed through the connecting pipe and the tap by the water pump to flush the debris generated on the inner wall of the nut, so as to reduce the jamming and resistance of the tap caused by the accumulation of debris on the inner wall of the nut, and prolong the service life of the tap.

[0019] 2. The automatic screw tapping device, by starting the second motor, the disc can drive multiple connecting rods to pull the clamping plate to clamp the nut, improve the convenience of the device when clamping the nut, and realize the positioning of the nut before tapping, improve the accuracy of the position of the nut during subsequent tapping. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0021] Figure 1 The main body of the present application is shown in the figure;

[0022] Figure 2 The structure of the mounting seat in the present application is shown in the figure;

[0023] Figure 3 The structure of the water inlet disc in the present application is shown in the figure;

[0024] Figure 4 The structure of the fixed plate in the present application is shown in the figure;

[0025] Figure 5 The structure of the clamping plate in the present application is shown in the figure;

[0026] Figure 6 The structure of the sealing cover in the present application is shown in the figure;

[0027] Figure 7 The structure of the exhaust pipe in the present application is shown in the figure;

[0028] Figure 8 The structure of the shunt plate in the present application is shown in the figure;

[0029] Figure 9 The structure of the ball in the present application is shown in the figure;

[0030] Figure 10 The structure of the positioning hole in the present application is shown in the figure.

[0031] As shown in the figure, the screw automatic tapping device comprises a base 1, the top of the base 1 is fixedly connected with a mounting seat 12, the top of the mounting seat 12 is fixedly connected with a first cylinder 13, the output end of the first cylinder 13 is fixedly connected with a supporting plate 14, the top of the base 1 is provided with a positioning rod which is in sliding connection with the supporting plate 14, the supporting plate 14 is provided with a first sliding plate 15, the bottom of the first sliding plate 15 is fixedly connected with a first motor 17, the output end of the first motor 17 is fixedly connected with a connecting pipe 18, the bottom of the connecting pipe 18 is fixedly connected with a tap 19, the bottom of the shell of the first motor 17 is fixedly connected with a water inlet disc 110, one side of the water inlet disc 110 is in communication with a water inlet pipe 111, the region of the connecting pipe 18 inside the water inlet disc 110 is provided with a plurality of holes, the water inlet disc 110 and the connecting pipe 18 are in communication, the connecting pipe 18 and the tap 19 are in communication, the surface of the tap 19 is provided with a plurality of holes, the top of the base 1 is provided with a clamping assembly for fixing a nut, the base 1 is provided with a fixed plate 2, the fixed plate 2 is provided with a second motor 22, the second motor 22 is provided with a disc 23, the disc 23 is provided with a connecting rod 24, the connecting rod 24 is provided with a sliding block 25, the sliding block 25 is provided with a clamping plate 26, the base 1 is provided with a drain pipe 3, the drain pipe 3 is provided with a box body 32, the box body 32 is provided with a connecting head 33, the connecting head 33 is provided with a screen 34, the base 1 is provided with a second cylinder 4, the second cylinder 4 is provided with a second sliding plate 42, the second cylinder 4 is provided with a sealing cover 43, the sealing cover 43 is provided with an air inlet disc 44, the air inlet disc 44 is provided with an air inlet pipe 45, the air inlet pipe 45 is provided with a turbine 46, the turbine 46 is provided with an air outlet pipe 47, the air outlet pipe 47 is provided with a spray head 48, the base 1 is provided with a flow distribution plate 5, the base 1 is provided with a first spring 6, the first spring 6 is provided with a spherical body 62, the base 1 is provided with elastic cloth 7, the elastic cloth 7 is provided with a filter element 72, the base 1 is provided with an acceleration part 8, the base 1 is provided with a positioning pin 9, the positioning pin 9 is provided with a positioning hole 92, the base 1 is provided with a second spring 1000, the second spring 1000 is provided with a top plate 1001. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0033] The specific embodiments are given below.

[0034] Please refer to Figures 1 to 10 As shown in the figure, the screw automatic tapping device comprises a base 1, the top of the base 1 is fixedly connected with a mounting seat 12, the top of the mounting seat 12 is fixedly connected with a first cylinder 13, the output end of the first cylinder 13 is fixedly connected with a supporting plate 14, the top of the base 1 is provided with a positioning rod which is in sliding connection with the supporting plate 14, the supporting plate 14 is provided with a first sliding plate 15, the bottom of the first sliding plate 15 is fixedly connected with a first motor 17, the output end of the first motor 17 is fixedly connected with a connecting pipe 18, the bottom of the connecting pipe 18 is fixedly connected with a tap 19, the bottom of the shell of the first motor 17 is fixedly connected with a water inlet disc 110, one side of the water inlet disc 110 is in communication with a water inlet pipe 111, the region of the connecting pipe 18 inside the water inlet disc 110 is provided with a plurality of holes, the water inlet disc 110 and the connecting pipe 18 are in communication, the connecting pipe 18 and the tap 19 are in communication, the surface of the tap 19 is provided with a plurality of holes, the top of the base 1 is provided with a clamping assembly for fixing a nut, the base 1 is provided with a fixed plate 2, the fixed plate 2 is provided with a second motor 22, the second motor 22 is provided with a disc 23, the disc 23 is provided with a connecting rod 24, the connecting rod 24 is provided with a sliding block 25, the sliding block 25 is provided with a clamping plate 26, the base 1 is provided with a drain pipe 3, the drain pipe 3 is provided with a box body 32, the box body 32 is provided with a connecting head 33, the connecting head 33 is provided with a screen 34, the base 1 is provided with a second cylinder 4, the second cylinder 4 is provided with a second sliding plate 42, the second cylinder 4 is provided with a sealing cover 43, the sealing cover 43 is provided with an air inlet disc 44, the air inlet disc 44 is provided with an air inlet pipe 45, the air inlet pipe 45 is provided with a turbine 46, the turbine 46 is provided with an air outlet pipe 47, the air outlet pipe 47 is provided with a spray head 48, the base 1 is provided with a flow distribution plate 5, the base 1 is provided with a first spring 6, the first spring 6 is provided with a spherical body 62, the base 1 is provided with elastic cloth 7, the elastic cloth 7 is provided with a filter element 72, the base 1 is provided with an acceleration part 8, the base 1 is provided with a positioning pin 9, the positioning pin 9 is provided with a positioning hole 92, the base 1 is provided with a second spring 1000, the second spring 1000 is provided with a top plate 1001.

[0035] When processing, the nut can be placed on the clamping assembly and fixed, then the first cylinder 13 can be started to drive the support plate 14 to move down, the support plate 14 can bring the tapping mechanism composed of the first motor 17, the connecting pipe 18 and the tap 19 to approach the nut, in the process, the first motor 17 can be started and drive the tap 19 to rotate through the connecting pipe 18, so as to tap the inner wall of the nut through the tap 19, in the process, the cooling water supply device communicated with the end of the water inlet pipe 111 can be controlled synchronously, the cooling water is driven to enter the inside of the tap 19 through the water inlet pipe 111, the water inlet disc 110 and the surface hole of the connecting pipe 18 and sprayed out from the surface hole of the tap 19 by pumping, so that the internal flow of the tap 19 is flushed out when tapping the internal thread of the nut, the flow can be sprayed with the rotation of the tap 19, and the debris generated on the inner wall of the nut due to tapping is flushed out in time under the action of water pressure, in addition, the flow can also cool the tap 19 when flowing, so as to reduce the heat generated on the surface of the tap 19 during processing; through the cooperation of the water inlet pipe 111 and the water inlet disc 110, the water flow can be driven to spray out through the connecting pipe 18 and the tap 19 by the water pump when the tap 19 taps the nut, so as to backflush the debris generated on the inner wall of the nut, so as to reduce the jamming and resistance of the tap 19 caused by the accumulation of debris on the inner wall of the nut, and prolong the service life of the tap 19.

[0036] Please refer to Figure 4 and Figure 5 As shown in the drawings, the clamping assembly comprises a fixed plate 2; the fixed plate 2 is fixedly installed on the top of the base 1; the bottom of the fixed plate 2 is provided with a second motor 22; the output end of the second motor 22 is fixedly connected with a disc 23, and the disc 23 is rotationally connected with the bottom of the fixed plate 2; a plurality of connecting rods 24 are rotationally connected with the surface of the disc 23; the end of the connecting rod 24 is rotationally connected with a sliding block 25, and the sliding block 25 is slidingly connected with the fixed plate 2; the one side of the sliding block 25 is fixedly connected with a clamping plate 26; the surface of the fixed plate 2 is provided with a placing groove, and the clamping plate 26 is located in the placing groove;

[0037] When the nut needs to be fixed, the nut can be placed in the placing groove on the surface of the fixing plate 2, and then the second motor 22 is started to drive the disc 23 to rotate. The disc 23 can exert a pulling force on the connecting rod 24 and make the connecting rod 24 change in angle. When the connecting rod 24 rotates with the disc 23, it can also exert a pulling force on the sliding block 25, so that the sliding block 25 slides along the fixing plate 2. The clamping plate 26 can move with the sliding block 25 and approach the nut. At this time, a plurality of clamping plates 26 can extrude and clamp the outer wall of the nut. Since the connecting rods 24 are arranged in a circumferential array on the disc 23, the nut clamped by the clamping plates 26 can be located at the center of the placing groove on the surface of the fixing plate 2. In addition, it is worth mentioning that most of the water flow sprayed by the tap 19 will still be in the placing groove on the surface of the fixing plate 2 after splashing, so as to reduce the influence of the splashing water flow on other parts. By starting the second motor 22, the disc 23 can drive a plurality of connecting rods 24 to pull the clamping plates 26 to clamp the nut, thereby improving the convenience of clamping the nut by the device and realizing the positioning of the nut before tapping. The accuracy of the position of the nut during subsequent tapping is improved.

[0038] Please refer to Figure 4 and Figure 5 As shown in the drawings, the inner wall of the placing groove on the surface of the fixing plate 2 is communicated with a drain pipe 3; the drain pipe 3 is of L-shaped structure, and a box body 32 is arranged at the end thereof; the box body 32 is arranged on the top of the base 1; a connecting head 33 is threadedly connected to the end of the drain pipe 3; a screen 34 is fixedly connected to the bottom of the connecting head 33;

[0039] Through the cooperation of the drain pipe 3 and the box body 32, the accumulated water in the placing groove on the surface of the fixing plate 2 can be discharged through the drain pipe 3. These waste water can be directly discharged into the box body 32 through the drain pipe 3 to realize the collection of waste water. The debris and impurities in the waste water can be intercepted by the screen 34 when flowing. The screen 34 can realize the solid-liquid separation of the waste water. When the screen 34 needs to be disassembled, it can be disassembled from the end of the drain pipe 3 together with the screen 34 by rotating the connecting head 33, so as to facilitate the cleaning or replacement of the screen 34 and the recycling of the debris in the screen 34.

[0040] Please refer to Figure 2 , Figures 6 to 8As shown, the first sliding plate 15 is in sliding connection with the support plate 14; one side of the first sliding plate 15 is fixedly connected with a second sliding plate 42; one side of the support plate 14 is fixedly connected with a second air cylinder 4; the output end of the second air cylinder 4 is in fixed connection with the second sliding plate 42; the second sliding plate 42 is located between the first sliding plate 15 and the second air cylinder 4; the bottom of the second sliding plate 42 is fixedly connected with a sealing cover 43, and the sealing cover 43 and the surface placing groove of the fixed plate 2 are correspondingly arranged; the inner wall top of the sealing cover 43 is fixedly connected with an air inlet disc 44; one side of the air inlet disc 44 is communicated with an air inlet pipe 45, and the air inlet pipe 45 penetrates through the sealing cover 43; the inner wall top of the air inlet disc 44 is rotatably connected with a turbine 46; the bottom of the turbine 46 is fixedly connected with an exhaust pipe 47; one side of the exhaust pipe 47 is provided with a plurality of holes; the bottom of the exhaust pipe 47 is fixedly connected with a spray head 48, and the spray head 48 is in a circular truncated cone structure; the side of the spray head 48 is provided with a plurality of holes;

[0041] After the tapping of the nut by the tap 19 is completed, the first air cylinder 13 can be started to reset the nut, and after resetting, the second air cylinder 4 can be started to drive the second sliding plate 42 to move together with the first sliding plate 15, so that the first sliding plate 15 moves away from the nut and the second sliding plate 42 is coaxial with the nut, and then the first air cylinder 13 can be started repeatedly to drive the second sliding plate 42 to move towards the nut with the sealing cover 43, the sealing cover 43 can abut against the surface of the fixed plate 2 and close the surface placing groove of the fixed plate 2, and the spray head 48 can abut against the bottom of the surface placing groove of the fixed plate 2, and the size of the spray head 48 is smaller than the size of the inner hole of the nut, so the exhaust pipe 47 can be located inside the nut, at this time it is the limit stroke of the first air cylinder 13, and then the air pump connected with the end of the air inlet pipe 45 can drive high-pressure airflow to enter the inside of the air inlet disc 44 through the air inlet pipe 45, the turbine 46 can rotate under the action of the airflow due to the arc surface fins on the surface of the turbine 46, and the airflow can enter the inside of the exhaust pipe 47 through the holes on the top of the exhaust pipe 47 and be sprayed out from the side holes of the spray head 48, since the spray head 48 is in a circular truncated cone shape, the airflow can be sprayed out obliquely, on one hand, the airflow can flush out the waste water and debris remaining in the inner hole of the nut, and realize the air drying of the inner wall of the nut, on the other hand, at this time the surface placing groove of the fixed plate 2 is closed by the sealing cover 43, so the inside of the surface placing groove is in a positive pressure state under the action of the inflation of the spray head 48, therefore the waste liquid originally remaining in the inner hole of the nut and the inner wall of the surface placing groove can be flushed out through the drain pipe 3, and the inner wall of the drain pipe 3 can also be forcibly flushed by the airflow under the action of the positive pressure, so as to reduce the possibility of blockage of the inner wall of the drain pipe 3 by debris.

[0042] Please refer to Figure 8 As shown, a plurality of flow distribution plates 5 are fixedly connected to the outer wall of the exhaust pipe 47, and the end of the flow distribution plate 5 is arc-shaped; a plurality of openings are formed in the surface of the flow distribution plate 5; the top of the spray head 48 is provided with a plurality of holes;

[0043] By setting the flow distribution plate 5, on the one hand, the arc-shaped setting of the flow distribution plate 5 can provide a guiding effect for the gas flow sprayed by the nozzle 48, and diffuse the flow range of the gas flow, on the other hand, the opening setting on the surface of the flow distribution plate 5 can make the gas flow sprayed by the top of the nozzle 48 pass through the flow distribution plate 5, and reduce the attachment of the residual debris in the nut on the surface of the flow distribution plate 5.

[0044] Please refer to Figure 8 and Figure 9 As shown in the figure, the first spring 6 is fixedly connected to the bottom of the inner wall of the nozzle 48; the top of the first spring 6 is fixedly connected with a ball 62, and the inner wall of the exhaust pipe 47 is provided with a ball seat corresponding to the ball 62;

[0045] By setting the first spring 6 and the ball 62, because the nozzle 48 and the surface of the fixed plate 2 placed in the groove begin to ventilate when they abut against each other, therefore part of the waste liquid will seep into the inside of the nozzle 48 through the hole, at this time the ball 62 can tightly adhere to the top ball seat under the elastic force of the first spring 6 to seal the nozzle 48, which can reduce the excessive seepage of waste water into the exhaust pipe 47, and after the air pump is started, the gas flow can exert air pressure on the ball 62 through the exhaust pipe 47, and the ball 62 can slide out of the ball seat under the action of the air pressure, and the waste liquid seeped into the nozzle 48 can be flushed out.

[0046] Please refer to Figure 9 As shown in the figure, a semispherical cavity is formed in the inner wall of the ball 62, and the top of the ball 62 is provided with an opening; the elastic cloth 7 is fixedly connected between the opening at the top of the ball 62 and the ball seat; the filter core 72 is fixedly connected in the cavity of the ball 62; and the upper semispherical surface of the ball 62 is provided with a plurality of holes;

[0047] After the air pump is started, the gas flow will enter the cavity of the ball 62 through the opening at the top of the ball 62, and then the ball 62 can slide out of the ball seat under the action of the air pressure, and the gas flow can pass through the filter core 72 during the flow process, so that the filter core 72 can filter the gas flow to reduce the particulate impurities that may be carried in the gas flow, and on the other hand, the setting of the elastic cloth 7 can make the gas flow stably enter the ball 62 through the ball seat to provide an air duct for the gas flow, and the elastic cloth 7 can provide an additional pulling force for the resetting of the ball 62, so as to facilitate the resetting action of the ball 62.

[0048] Please refer to Figure 7 and Figure 8 As shown in the figure, the accelerating portion 8 is fixedly connected to the inner wall of the exhaust pipe 47, and the end surface of the accelerating portion 8 is provided with an inclination; the bottom of the accelerating portion 8 is in a fixed connection relationship with the ball seat;

[0049] By setting the accelerating portion 8, when the gas flow passes through the accelerating portion 8, the cross-sectional area gradually decreases, so the flow rate of the gas flow can also gradually increase, thereby improving the subsequent extrusion and cleaning effect of the gas flow on the ball 62.

[0050] Please refer to Figure 6 andFigure 10 As shown in the figure, the bottom of the sealing cover 43 is fixed with a plurality of positioning pins 9; the surface of the fixed plate 2 is provided with a plurality of positioning holes 92, and the end face of the positioning pin 9 and the positioning hole 92 is provided with a chamfer; the positioning hole 92 and the positioning pin 9 are correspondingly arranged;

[0051] Through the cooperation of the positioning pin 9 and the positioning hole 92, when the sealing cover 43 and the fixed plate 2 are docked by starting the first cylinder 13, the sealing cover 43 can be close to the positioning hole 92 on the surface of the fixed plate 2 with the positioning pin 9, and because the end face of the positioning pin 9 and the positioning hole 92 is chamfered, it is convenient for the accurate engagement between the positioning pin 9 and the positioning hole 92, thereby improving the accuracy of the position of the sealing cover 43 and the fixed plate 2 when they are docked.

[0052] Please refer to Figure 10 As shown in the figure, the inner wall of the positioning hole 92 is fixed with a second spring 1000 at the bottom; the top of the second spring 1000 is fixed with a top plate 1001;

[0053] By setting the second spring 1000 and the top plate 1001, when the positioning pin 9 enters the inside of the positioning hole 92, the top plate 1001 will be compressed, and the second spring 1000 can provide the top plate 1001 with elastic force, so that the positioning pin 9 can receive additional thrust when it slides out of the positioning hole 92 subsequently, reducing the resistance of the positioning pin 9 in the sliding process due to rust, waste liquid and other factors on the inner wall of the positioning hole 92.

[0054] Working principle: by placing the nut on the clamping assembly and fixing it, then the first cylinder 13 can be started to drive the support plate 14 to move down, the support plate 14 can bring the tapping mechanism composed of the first motor 17, the connecting pipe 18 and the tap 19 to approach the nut, in the process, the first motor 17 can be started and drive the tap 19 to rotate through the connecting pipe 18, to tap the inner wall of the nut through the tap 19, in the process, the cooling water supply equipment connected to the end of the water inlet pipe 111 can be controlled synchronously, the cooling water is driven by pumping to enter the tap 19 from the surface hole of the connecting pipe 18, the water inlet pipe 111 and the water inlet disc 110, and spurt out from the surface hole of the tap 19, so that the internal flow of the tap 19 will be flushed out when tapping the internal thread of the nut, these water flows can be sprayed with the rotation of the tap 19, and under the action of water pressure, the debris generated by tapping the inner wall of the nut is flushed out in time, in addition, these water flows can also cool the tap 19 when flowing, to reduce the heat generated on the surface of the tap 19 when machining; when the nut needs to be fixed, the nut can be placed in the placing groove on the surface of the fixed plate 2, then the second motor 22 is started to drive the disc 23 to rotate, the disc 23 can exert a pulling force on the connecting rod 24 and change the angle of the connecting rod 24, the connecting rod 24 can also exert a pulling force on the sliding block 25 when rotating with the disc 23, so that the sliding block 25 slides along the fixed plate 2, the clamping plate 26 can move with the sliding block 25 and approach the nut, at this time, the plurality of clamping plates 26 can clamp and press the outer wall of the nut, at the same time, because the connecting rods 24 are arranged in a circular array on the disc 23, the nut clamped by the clamping plates 26 can be located at the center of the placing groove on the surface of the fixed plate 2, in addition, it is worth mentioning that most of the water spurted by the tap 19 will still be in the placing groove on the surface of the fixed plate 2 after splashing, to reduce the influence of the splashing water on other parts; through the cooperation of the drain pipe 3 and the box body 32, the accumulated water in the placing groove on the surface of the fixed plate 2 can be discharged through the drain pipe 3, these waste water can be directly discharged to the inside of the box body 32 through the drain pipe 3, to realize the collection of waste water, at the same time, the debris and impurities in the waste water can be intercepted by the screen 34 when flowing, the screen 34 can realize the solid-liquid separation of waste water, when the screen 34 needs to be disassembled, only need to rotate the connector 33 to disassemble the screen 34 from the end of the drain pipe 3, to facilitate cleaning or replacement of the screen 34, and recycling of the debris in the screen 34;After the tapping of the nut 19 is completed, the first cylinder 13 can be started to reset it. After resetting, the second cylinder 4 can be started to drive the second sliding plate 42 to move together with the first sliding plate 15, so that the first sliding plate 15 moves away from the nut and the second sliding plate 42 is coaxial with the nut. Then the first cylinder 13 can be started again to drive the second sliding plate 42 to move towards the nut with the sealing cover 43. The sealing cover 43 can abut against the surface of the fixed plate 2 and close the groove on the surface of the fixed plate 2. The nozzle 48 can abut against the bottom of the groove on the surface of the fixed plate 2, and the size of the nozzle 48 is smaller than the size of the inner hole of the nut, so the exhaust pipe 47 can be located inside the nut. At this time, it is the limit stroke of the first cylinder 13. Then the air pump connected to the end of the air inlet pipe 45 can drive the high-pressure airflow to enter the air inlet disc 44 through the air inlet pipe 45. The turbine 46 can rotate under the action of the airflow due to the arc surface fins on its surface. At the same time, the airflow can enter the exhaust pipe 47 through the hole at the top of the exhaust pipe 47 and be sprayed from the side hole of the nozzle 48. Since the nozzle 48 is in the shape of a circular truncated cone, the airflow can be sprayed obliquely. On the one hand, the airflow can flush out the waste water and debris remaining in the inner hole of the nut, achieving air drying of the inner wall of the nut. On the other hand, at this time the groove on the surface of the fixed plate 2 is closed by the sealing cover 43, so the inside of the groove will be in a positive pressure state under the action of the inflation of the nozzle 48. Therefore, the waste liquid originally remaining in the inner hole of the nut and the inner wall of the groove can be flushed out through the drain pipe 3. In addition, under the action of positive pressure, the inner wall of the drain pipe 3 can also be forcibly flushed with air to reduce the possibility of debris blocking the inner wall of the drain pipe 3. By setting the flow distribution plate 5, on the one hand, the arc shape of the flow distribution plate 5 can provide a guiding effect for the airflow sprayed by the nozzle 48, expanding the flow range of the airflow. On the other hand, the opening on the surface of the flow distribution plate 5 can make the airflow sprayed from the top of the nozzle 48 pass through the flow distribution plate 5, reducing the attachment of debris remaining in the nut on the surface of the flow distribution plate 5. By setting the first spring 6 and the ball 62, the nozzle 48 will start to ventilate when it abuts against the inner wall of the groove on the surface of the fixed plate 2. Therefore, some waste liquid will seep into the inside of the nozzle 48 through the hole. At this time, the ball 62 can tightly abut against the top ball seat under the action of the elastic force of the first spring 6 to seal the nozzle 48, reducing the excessive seepage of waste water into the exhaust pipe 47. At the same time, after the air pump is started, the airflow can exert air pressure on the ball 62 through the exhaust pipe 47. The ball 62 can slide out of the ball seat under the action of the air pressure and flush out the waste liquid seeping into the nozzle 48. After the air pump is started, the airflow can enter the cavity in the ball 62 through the opening on the top of the ball 62. Then the ball 62 can slide out of the ball seat under the action of the air pressure. The airflow can pass through the filter element 72 during the flow process. The filter element 72 can filter the airflow to reduce the possibility of carrying particulate impurities in the airflow. On the one hand, the elastic cloth 7 can provide an air duct for the airflow to stably enter the ball 62. On the other hand, the elastic cloth 7 can provide additional tension for the resetting of the ball 62, facilitating the resetting action of the ball 62.Through setting the accelerating part 8, when the airflow passes through the accelerating part 8, the flow velocity of the airflow can be gradually increased due to the gradually reduced cross-sectional area, and then the subsequent extrusion and cleaning effect of the airflow on the ball 62 are improved; through the cooperation of the positioning pin 9 and the positioning hole 92, when the first air cylinder 13 is started to drive the sealing cover 43 and the fixed plate 2 to be connected, the sealing cover 43 can carry the positioning pin 9 to approach the positioning hole 92 on the surface of the fixed plate 2, since the end faces of the positioning pin 9 and the positioning hole 92 are both chamfered, the accurate engagement between the positioning pin 9 and the positioning hole 92 is facilitated, and then the accuracy of the position when the sealing cover 43 and the fixed plate 2 are connected is improved; through setting the second spring 1000 and the top plate 1001, when the positioning pin 9 enters the inside of the positioning hole 92, the top plate 1001 will be compressed, and the second spring 1000 can provide the top plate 1001 with elastic force, so that when the positioning pin 9 subsequently slides out of the positioning hole 92, the positioning pin 9 can be subjected to additional thrust, and the resistance effect of the positioning pin 9 in the sliding-out process due to rust, waste liquid and the like on the inner wall of the positioning hole 92 is reduced.

[0055] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A screw tapping device comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a mounting seat (12); the top of the mounting seat (12) is fixedly connected with a first air cylinder (13); the output end of the first air cylinder (13) is fixedly connected with a support plate (14), and the top of the base (1) is provided with a positioning rod in sliding connection with the support plate (14); a first sliding plate (15) is arranged on the support plate (14), and the bottom of the first sliding plate (15) is fixedly connected with a first motor (17); the output end of the first motor (17) is fixedly connected with a connecting pipe (18); the bottom of the connecting pipe (18) is fixedly connected with a tap (19); the bottom of the shell of the first motor (17) is fixedly connected with a water inlet disc (110); one side of the water inlet disc (110) is communicated with a water inlet pipe (111); the region of the connecting pipe (18) inside the water inlet disc (110) is provided with a plurality of holes, and the water inlet disc (110) and the connecting pipe (18) are in communication; the connecting pipe (18) and the tap (19) are in communication, and the surface of the tap (19) is provided with a plurality of holes; The top of the base (1) is provided with a clamping assembly for fixing a nut; The clamping assembly comprises a fixed plate (2); the fixed plate (2) is fixedly installed at the top of the base (1); the bottom of the fixed plate (2) is provided with a second motor (22); the output end of the second motor (22) is fixedly connected with a disc (23), and the disc (23) is rotatably connected with the bottom of the fixed plate (2); a plurality of connecting rods (24) are rotatably connected to the surface of the disc (23); the end of each connecting rod (24) is rotatably connected with a sliding block (25), and the sliding block (25) is in sliding connection with the fixed plate (2); one side of the sliding block (25) is fixedly connected with a clamping plate (26); the surface of the fixed plate (2) is provided with a placing groove, and the clamping plate (26) is located inside the placing groove; The first sliding plate (15) is in sliding connection with the support plate (14); one side of the first sliding plate (15) is fixedly connected with a second sliding plate (42); one side of the support plate (14) is fixedly connected with a second air cylinder (4); the output end of the second air cylinder (4) is in fixed connection with the second sliding plate (42); the second sliding plate (42) is located between the first sliding plate (15) and the second air cylinder (4); the bottom of the second sliding plate (42) is fixedly connected with a sealing cover (43), and the sealing cover (43) and the placing groove on the surface of the fixed plate (2) are correspondingly arranged; the top of the inner wall of the sealing cover (43) is fixedly connected with an air inlet disc (44); one side of the air inlet disc (44) is communicated with an air inlet pipe (45), and the air inlet pipe (45) penetrates through the sealing cover (43); the top of the inner wall of the air inlet disc (44) is rotatably connected with a turbine (46); the bottom of the turbine (46) is fixedly connected with an exhaust pipe (47); one side of the exhaust pipe (47) facing the air inlet disc (44) is provided with a plurality of holes; the bottom of the exhaust pipe (47) is fixedly connected with a spray head (48), and the spray head (48) has a circular truncated cone structure; the side of the spray head (48) is provided with a plurality of holes; The exhaust pipe (47) is externally connected with a plurality of shunt plates (5), and the end of the shunt plate (5) is arc-shaped; the surface of the shunt plate (5) is provided with a plurality of openings; the top of the spray head (48) is provided with a plurality of holes.

2. The automatic tapping device according to claim 1, characterized in that: The surface of the fixed plate (2) is provided with a groove, and the inner wall of the groove is communicated with a drain pipe (3); the drain pipe (3) is L-shaped, and the end is provided with a box body (32); the box body (32) is arranged on the top of the base (1); the end of the drain pipe (3) is threadedly connected with a connector (33); the bottom of the connector (33) is fixedly connected with a screen (34).

3. The automatic screw tapping device according to claim 2, characterized in that: The inner wall of the spray head (48) is fixedly connected with a first spring (6); the top of the first spring (6) is fixedly connected with a ball (62), and the inner wall of the exhaust pipe (47) is provided with a ball seat corresponding to the ball (62).

4. The automatic screw tapping device according to claim 3, characterized in that: The inner wall of the ball (62) is provided with a hemispherical cavity, and the top of the ball (62) is provided with an opening; the elastic cloth (7) is fixedly connected between the opening of the top of the ball (62) and the ball seat; the inner cavity of the ball (62) is fixedly connected with a filter core (72); the upper hemispherical surface of the ball (62) is provided with a plurality of holes.

5. The automatic screw tapping device according to claim 4, characterized in that: The inner wall of the exhaust pipe (47) is fixedly connected with an acceleration part (8), and the end surface of the acceleration part (8) is inclined; the bottom of the acceleration part (8) is in fixed connection with the ball seat.

6. The automatic screw tapping device according to claim 5, characterized in that: The bottom of the sealing cover (43) is fixedly connected with a plurality of positioning pins (9); the surface of the fixed plate (2) is provided with a plurality of positioning holes (92), and the end surface of the positioning hole (92) and the positioning pin (9) are both provided with chamfers; the positioning hole (92) and the positioning pin (9) are correspondingly arranged.

7. The automatic screw tapping device according to claim 6, characterized in that: The inner wall of the positioning hole (92) is fixedly connected with a second spring (1000); the top of the second spring (1000) is fixedly connected with a top plate (1001).

Images