CN111673207A

CN111673207A - Tapping and processing device for manufacturing steel bar sleeve

Info

Publication number: CN111673207A
Application number: CN202010557238.XA
Authority: CN
Inventors: 李联辉; 郝宇; 许冠英; 李峡辉; 刘洁
Original assignee: 李峡辉
Current assignee: Taigu Xiangxin Intelligent Machinery Manufacturing Co.,Ltd.
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-09-18
Anticipated expiration: 2040-06-18
Also published as: CN111673207B

Abstract

The invention provides a tapping and processing device for manufacturing a steel bar sleeve, which comprises a bottom plate, a bracket is fixed at the right part of the upper end of the bottom plate, a second motor is fixed at the upper end of the bracket, a third motor is arranged in the bracket, the second motor is connected with the third motor through a gear-rack transmission structure, a tapping rod is fixed at the lower end of an output shaft of the third motor, a bottom frame is fixed at the upper end of the bottom plate, an adjustable clamping structure is arranged at the upper end of the bottom frame, the adjustable clamping structure comprises a central pipe arranged at the upper end of the bottom frame, a supporting circular plate is sleeved at the annular outer end of the central pipe, an annular plate is arranged at the upper side of the supporting circular plate and sleeved outside the central pipe, a connecting rod and a telescopic clamping piece are fixed between the inner wall of the annular plate and the annular end surface of, the application range is enlarged, and the use effect is good.

Description

Tapping and processing device for manufacturing steel bar sleeve

Technical Field

The invention discloses a tapping and processing device for manufacturing a steel bar sleeve, and belongs to the technical field of steel bar sleeve processing.

Background

The steel bar sleeve is mainly used for connecting two pieces of finish-rolled deformed steel bars so as to achieve the use length. The prestressed high-strength finish-rolled threaded steel bar is screwed with a connector with internal threads at any section and can be used for connection and tensioning. The steel sleeve needs to be tapped after the hole is punched. The tapping machine that present steel bar sleeve used can only process the steel bar sleeve of single model, and application range is narrow.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a tapping device for manufacturing a steel bar sleeve, which is used for solving the problems in the background art.

In order to achieve the purpose, the invention is realized by the following technical scheme: a tapping and processing device for manufacturing a steel bar sleeve comprises a bottom plate, a support is fixed on the right position of the upper end of the bottom plate, a second motor is fixed on the upper end of the support, a third motor is arranged in the support, the second motor is connected with the third motor through a gear rack transmission structure capable of driving the third motor to move up and down, a tapping rod is fixed at the lower end of an output shaft of the third motor, a bottom frame is fixed on the upper end of the bottom plate, an adjustable clamping structure is installed at the upper end of the bottom frame, the bottom frame and the adjustable clamping structure are both arranged on the left lower side of the support, the adjustable clamping structure comprises a central tube installed on the upper end of the bottom frame, a supporting circular plate is sleeved at the annular outer end of the central tube, an annular plate is arranged on the upper side of the supporting circular plate and sleeved outside, the electric cylinder is fixed at the lower end of the annular plate, and the end part of a piston rod of the electric cylinder is fixedly connected with the supporting circular plate.

Further, the telescopic clamping piece comprises a second telescopic piece which is fixed at the end part of the central tube and is communicated with the interior of the central tube, the telescopic clamping piece also comprises a first telescopic piece fixed on the inner wall of the annular plate, the first telescopic piece comprises a hollow cylinder, a piston is arranged in the hollow cylinder, the annular outer end surface of the piston is attached to the annular inner wall of the hollow cylinder, a piston rod is movably arranged at one end of the hollow cylinder close to the second telescopic piece, the piston rod penetrates through the end part of the hollow cylinder and is fixedly connected with the piston, the side end of the hollow cylinder is fixedly connected with a port pipe, the port pipe is arranged at one side of the piston opposite to the piston rod, the first telescopic piece and the second telescopic piece have the same specification, a V-shaped plate is fixed at the opposite end of a piston rod in the first telescopic piece and the opposite end of a piston rod in the second telescopic piece, and the connecting port pipes in the first telescopic piece and the second telescopic piece are fixedly communicated through a communicating pipe.

Further, electronic jar is equipped with at least two, at least two electronic jar all establishes between annular plate and support plectane, flexible holder and connecting rod all are equipped with at least two, at least two connecting rod and flexible holder interval set up and misplace each other.

Further, underframe upper end left part position fixes first motor, first motor passes through bevel gear drive assembly and is connected with the center tube transmission, bevel gear drive assembly is including fixing the first bevel gear at first motor output shaft right-hand member and fixing the second bevel gear in the annular outer end of center tube, first bevel gear and second bevel gear meshing installation, first bevel gear and second bevel gear are all established at the support plectane downside, the underframe upper end is seted up round hole and the inside rotary joint that runs through of round hole, the rotary joint upper end is connected with the center tube, the gas-supply pipe is connected to the rotary joint lower extreme.

Further, the support includes the horizontal pole and fixes first montant and the second montant at both ends about the horizontal pole, the second montant is fixed in the underframe upper end, the spout is all seted up to first montant and the inside spout that all sets up of second montant, the equal fixed deflector in both ends about the third motor, two the deflector laminates respectively on the side end face that first montant and second montant are relative, two the one end that the third motor was kept away from to the deflector all passes through threaded mounting guide bolt, two guide bolt's threaded rod moves about respectively and sets up inside two spouts, two guide bolt's nut is established respectively at first montant left end and second montant right-hand member.

Furthermore, a U-shaped frame is slidably arranged between the first vertical rod and the second vertical rod and is arranged at the lower side of the guide plate, a first reversal switch and a second reversal switch are fixed at the upper end of the U-shaped frame in a bilateral symmetry manner, the U-shaped frame is arranged at the outer side of the tapping rod, screw rods are fixed at the left end and the right end of the U-shaped frame, and the two screw rods are respectively arranged in the two sliding chutes, the annular outer ends of the two screw rods are both connected with nuts, the two nuts are respectively attached to the left end of the first vertical rod and the right end of the second vertical rod, the front ends of the first vertical rod and the second vertical rod are both provided with scale marks, the first reverse switch is electrically connected with the second motor, a first forward rotation switch and a first start-stop switch which are electrically connected with the second motor are fixed at the upper end of the bracket, and a second forward rotation switch and a second start-stop switch which are electrically connected with the third motor are fixed at the upper end of the support.

Furthermore, the gear rack transmission structure comprises a cylindrical gear fixed at the front end of the output shaft of the second motor and a rack fixed at the upper end of the third motor, a through hole used for accommodating the rack is formed in the upper end of the support, and the rack and the cylindrical gear are installed in a meshed mode.

Furthermore, the front end and the rear end of the second vertical rod are both fixed with the inclined rod, and the two inclined rods are both fixed at the upper end of the bottom plate.

The invention has the beneficial effects that:

1. utilize flexible holder to carry out the centre gripping to the steel casing pipe of different external diameters, switch on electronic jar's power to utilize the switch to start electronic jar, can adjust the interval between annular plate and the support plectane, thereby be convenient for carry out the centre gripping to the steel casing pipe of co-altitude not fixed, enlarged application range.

2. The design of two at least flexible holders is convenient for a plurality of steel sleeve pipes of centre gripping simultaneously, need not centre gripping one by one, and single steel sleeve pipe processing accomplishes the back, upwards removes tapping pole to with the steel sleeve pipe separation of having processed, then drives adjustable clamping structure through first motor once more and rotates, removes another steel sleeve pipe to the tapping pole below, processes, once can carry out centre gripping and processing to a plurality of steel sleeve pipes on the same principle, has improved work efficiency.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of a tapping device for manufacturing a steel sleeve according to the present invention;

FIG. 2 is a schematic view of a U-shaped frame in the tapping and processing device for manufacturing a steel sleeve according to the present invention;

FIG. 3 is a schematic diagram of an adjustable clamping structure in the tapping device for manufacturing a steel sleeve according to the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a schematic view of a first expansion member in the tapping apparatus for manufacturing a steel sleeve according to the present invention;

fig. 6 is a schematic positive and negative rotation circuit diagram of a second motor in the tapping machining device for manufacturing the steel sleeve.

In the figure: 1-bottom plate, 2-bottom frame, 3-first motor, 4-bevel gear transmission component, 5-adjustable clamping structure, 6-support, 7-gear rack transmission structure, 8-second motor, 9-third motor, 10-tapping rod, 11-U-shaped frame, 13-rotary joint, 61-guide plate, 20-second reversing switch, 50-connecting rod, 51-annular plate, 52-supporting circular plate, 53-electric cylinder, 54-central tube, 55-first telescopic member, 56-communicating tube, 57-V-shaped plate, 58-second telescopic member, 60-telescopic clamping member, 551-hollow cylinder, 552-connecting port tube, 553-piston and 554-piston rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-6, a tapping device for manufacturing a steel sleeve comprises a bottom plate 1, a right-side position fixing support 6 at the upper end of the bottom plate 1, a second motor 8 fixed at the upper end of the support 6, a third motor 9 arranged inside the support 6, the second motor 8 connected with the third motor 9 through a gear rack transmission structure 7 capable of driving the third motor 9 to move up and down, a tapping rod 10 fixed at the lower end of an output shaft of the third motor 9, a bottom frame 2 fixed at the upper end of the bottom plate 1, an adjustable clamping structure 5 arranged at the upper end of the bottom frame 2, the bottom frame 2 and the adjustable clamping structure 5 arranged at the left lower side of the support 6, the third motor 9 and the tapping rod 10 are driven to move up and down by the work of the second motor 8, the tapping rod 10 is driven to rotate forwards and backwards by the third motor 9, carry out the centre gripping through adjustable clamping structure 5 to steel sleeve fixed, carry out tapping processing through the tapping pole 10 that can reciprocate and just reverse rotation to steel sleeve.

The adjustable clamping structure 5 comprises a central tube 54 installed at the upper end of the bottom frame 2, a supporting circular plate 52 is sleeved at the annular outer end of the central tube 54, an annular plate 51 is arranged at the upper side of the supporting circular plate 52, the annular plate 51 is sleeved outside the central tube 54, a connecting rod 20 and a telescopic clamping piece 60 are fixed between the inner wall of the annular plate 51 and the annular end surface of the central tube 54, an electric cylinder 53 is fixed at the lower end of the annular plate 51, the end part of a piston rod of the electric cylinder 53 is fixedly connected with the supporting circular plate 52, the annular plate 51 is fixedly connected with the central tube 54 through the connecting rod 20, the central tube 54 is connected with an external air supply device, air enters the telescopic clamping piece 60 through the central tube 54, the telescopic clamping piece 60 can clamp steel bar sleeves with different outer diameters, the power supply of the electric cylinder 53 is switched on, the, thereby being convenient for clamp and fix the steel bar sleeves with different heights and enlarging the application range.

The telescopic clamping member 60 comprises a second telescopic member 58 fixed at the end of the central tube 54 and communicated with the inside of the central tube 54, the telescopic clamping member 60 further comprises a first telescopic member 55 fixed at the inner wall of the annular plate 51, the first telescopic member 55 comprises a hollow cylinder 551, a piston 553 is arranged inside the hollow cylinder 551, the annular outer end surface of the piston 553 is attached to the annular inner wall of the hollow cylinder 551, a piston rod 554 is movably arranged at one end of the hollow cylinder 551 close to the second telescopic member 58, the piston rod 554 penetrates through the end of the hollow cylinder 551 and is fixedly connected with the piston 553, a sealing washer capable of playing a sealing function is arranged at the contact position of the piston rod 554 and the hollow cylinder 55, a port pipe 552 is fixed at the side end of the hollow cylinder 551, the port pipe 552 is arranged at the side of the piston 553, which is opposite to the piston rod 554, the first telescopic member 55 and the second telescopic member 58 are of the same specification, a V-shaped plate 57 is, the connection port pipe 552 in the first telescopic member 55 and the second telescopic member 58 is fixedly communicated through a communication pipe 56, a steel bar sleeve to be processed is arranged between the two V-shaped plates 57 and is placed at the upper end of the supporting circular plate 52, gas is conveyed into the second telescopic member 58 through the central pipe 54, the second telescopic member 58 is communicated with the first telescopic member 55 through the communication pipe 56, so that the pistons 553 in the second telescopic member 58 and the first telescopic member 55 are pushed to move oppositely, the two piston rods 554 and the two V-shaped plates 57 are close to each other, the two V-shaped plates 57 are used for clamping and fixing the steel bar sleeve, and for steel bar sleeves with different outer diameters, the gas filled into the second telescopic member 58 and the first telescopic member 55 can be adjusted, so that the telescopic clamping member 60 is convenient for clamping steel bar sleeves with various outer diameters.

Electronic jar 53 is equipped with at least two, two at least electronic jars 53 all establish between annular plate 51 and support plectane 52, flexible holder 60 and connecting rod 20 all are equipped with two at least, two at least connecting rods 20 and flexible holder 60 intervals set up and misplace each other, two at least electronic jars 53 are convenient for two annular plate 51 and support plectane 52's stable connection, the design of two at least flexible holders 60 is convenient for centre gripping a plurality of steel reinforcement sleeve pipes simultaneously, need not centre gripping one by one, the work efficiency of totality has been improved.

The left position of the upper end of the bottom frame 2 is fixed with a first motor 3, the first motor 3 is in transmission connection with a central tube 54 through a bevel gear transmission component 4, the bevel gear transmission component 4 comprises a first bevel gear fixed at the right end of an output shaft of the first motor 3 and a second bevel gear fixed at the annular outer end of the central tube 54, the first bevel gear and the second bevel gear are in meshing installation, the first bevel gear and the second bevel gear are both arranged at the lower side of a supporting circular plate 52, the upper end of the bottom frame 2 is provided with a circular hole, a rotary joint 13 penetrates through the inside of the circular hole, the upper end of the rotary joint 13 is connected with the central tube 54, the lower end of the rotary joint 13 is connected with a gas pipe, after a plurality of steel pipe sleeves are simultaneously clamped through an adjustable clamping structure 5, the power supply of the first motor 3 is switched on, thereby drive whole adjustable clamping structure 5 and rotate, when rotating a station, one of them steel casing pipe is established under tapping pole 10, work through third motor 9 and second motor 8 drives tapping pole 10 and rotates and reciprocate, the realization is to this steel casing pipe tapping processing, single steel casing pipe processing accomplishes the back, the up-shift is tapped pole 10 and is separated with processed steel casing pipe, then drive adjustable clamping structure 5 through first motor 3 once more and rotate, remove tapping pole 10 below with another steel casing pipe, process, the same reason once can carry out centre gripping and processing to a plurality of steel casing pipes, and the work efficiency is improved.

Support 6 includes the horizontal pole and fixes first montant and the second montant at both ends about the horizontal pole, the second montant is fixed in underframe 2 upper end, the spout is all seted up to first montant and the inside spout that all sets up in second montant, the equal fixed deflector 61 in both ends about third motor 9, two deflectors 61 laminate respectively on the side end face that first montant and second montant are relative, the one end that third motor 9 was kept away from to two deflectors 61 is all through screw thread installation guide bolt, two guide bolt's threaded rod activity respectively sets up inside two spouts, two guide bolt's nut is established respectively at first montant left end and second montant right-hand member, lead reciprocating of third motor 9 through deflector 61 and guide bolt, the stability that third motor 9 reciprocated has been improved.

Slidable mounting U type frame 12 and U type frame 12 establish at deflector 61 downside between first montant and the second montant, U type frame 12 upper end bilateral symmetry fixes first reversal switch 11 and second reversal switch 20, U type frame 12 establishes in the tapping pole 10 outside, the equal fixed screw rod in both ends about U type frame 12, and two screw rods establish respectively inside two spouts, the equal coupling nut in two screw rod annular outer ends, two nuts laminate respectively at first montant left end and second montant right-hand member, scale mark is all processed to first montant front end and second montant front end, first

reversal switch

11 and 8 electric connection of second motor, the fixed first reversal switch and the first start-stop switch with 8 electric connection of second motor in support 6 upper end, the fixed second reversal switch and the second start-stop switch with third motor 9 electric connection in support 6 upper end.

The second motor 8 and the third motor 9 are externally connected with a forward and reverse rotation circuit as shown in fig. 6, taking the second motor 8 as an example, wherein SB2 is a first forward rotation switch, SB3 is a first reverse rotation switch 11, SB1 is a first start/stop switch, SB1 is a normally closed switch, SB2 and SB3 are normally open switches, when in use, SB2 of the second motor 8 and the third motor 9 is pressed, the second motor 8 and the third motor 9 simultaneously perform forward rotation to drive the tapping rod 10 to move downwards and simultaneously rotate forwards, so that the tapping rod 10 extends into the steel bar sleeve to perform tapping processing, the third motor 9 moves downwards to drive the guide plate 61 to move downwards, when the guide plate 61 moves downwards to contact with the first reverse rotation switch 11 and the second reverse rotation switch 20, SB3 connected with the second motor 8 and the third motor 9 is pressed, the second motor 8 and the third motor 9 simultaneously perform reverse rotation to drive the tapping rod 10 to rotate backwards and move upwards, tapping pole 10 upwards moves to suitable height, press the SB1 of second motor 8 and third motor 9, stop second motor 8 and third motor 9, the realization is restricted the distance of third motor 9 downstream, the degree of depth of the screw hole that tapping pole 10 processed promptly is restricted, after the connection nut is unscrewed, can reciprocate U type frame 12, first reversal switch 11 and second reversal switch 20 to suitable height, the connection nut is screwed again, thereby can be to U type frame 12, the height of first reversal switch 11 and second reversal switch 20 is adjusted, thereby adjust the screw hole degree of depth that tapping pole 10 processed.

The gear rack transmission structure 7 comprises a cylindrical gear fixed at the front end of an output shaft of the second motor 8 and a rack fixed at the upper end of the third motor 9, a through hole used for accommodating the rack is formed in the upper end of the support 6, the rack is installed in a meshed mode with the cylindrical gear, the second motor 8 works to drive the cylindrical gear to rotate, and therefore the rack can be driven to move up and down and further drive the third motor 9 to rotate up and down.

The inclined rod is fixed to second montant front end and rear end and two inclined rods are fixed at 1 upper end of bottom plate, and the design of inclined rod has improved the stability of placing of second montant.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a steel sleeve preparation tapping processingequipment which characterized in that: the adjustable clamping device comprises a bottom plate (1), a fixed support (6) is arranged at the right position of the upper end of the bottom plate (1), a second motor (8) is fixed at the upper end of the support (6), a third motor (9) is arranged in the support (6), the second motor (8) is connected with the third motor (9) through a gear rack transmission structure (7) capable of driving the third motor (9) to move up and down, a tapping rod (10) is fixed at the lower end of an output shaft of the third motor (9), a bottom frame (2) is fixed at the upper end of the bottom plate (1), an adjustable clamping structure (5) is installed at the upper end of the bottom frame (2), and the bottom frame (2) and the adjustable clamping structure (5) are arranged at the lower left side of the support (6;

the adjustable clamping structure (5) comprises a central tube (54) installed at the upper end of the bottom frame (2), a supporting circular plate (52) is sleeved at the annular outer end of the central tube (54), an annular plate (51) is arranged on the upper side of the supporting circular plate (52), the annular plate (51) is sleeved outside the central tube (54), a connecting rod (20) and a telescopic clamping piece (60) are fixed between the inner wall of the annular plate (51) and the annular end face of the central tube (54), an electric cylinder (53) is fixed at the lower end of the annular plate (51), and the end part of a piston rod of the electric cylinder (53) is fixedly connected with the supporting circular plate (52);

the telescopic clamping piece (60) comprises a second telescopic piece (58) which is fixed at the end part of the central pipe (54) and communicated with the interior of the central pipe (54), the telescopic clamping piece (60) further comprises a first telescopic piece (55) which is fixed on the inner wall of the annular plate (51), the first telescopic piece (55) comprises a hollow cylinder (551), a piston (553) is arranged in the hollow cylinder (551), the annular outer end face of the piston (553) is attached to the annular inner wall of the hollow cylinder (551), a piston rod (554) is movably installed at one end, close to the second telescopic piece (58), of the hollow cylinder (551), the piston rod (554) penetrates through the end part of the hollow cylinder (551) and is fixedly connected with the piston (551), the side end of the hollow cylinder (551) is fixedly connected with a port pipe (552), and the port pipe (552) is arranged at one side, opposite to the piston rod (554), of the hollow cylinder (551), the first telescopic piece (55) and the second telescopic piece (58) are the same in specification, a V-shaped plate (57) is fixed at the opposite end of a piston rod (554) in the first telescopic piece (55) and the opposite end of a piston rod (554) in the second telescopic piece (58), and a connecting port pipe (552) in the first telescopic piece (55) and the second telescopic piece (58) is fixedly communicated through a communication pipe (56);

support (6) include the horizontal pole and fix first montant and the second montant at both ends about the horizontal pole, the second montant is fixed in underframe (2) upper end, the spout is all seted up to first montant and second montant inside, the equal fixed deflector (61) in both ends about third motor (9), two deflector (61) laminate respectively on the side end face that first montant and second montant are relative, two the one end that third motor (9) were kept away from in deflector (61) all passes through screw thread installation guide bolt, two guide bolt's threaded rod activity respectively sets up inside two spouts, two guide bolt's nut is established respectively at first montant left end and second montant right-hand member.

2. The tapping and processing device for manufacturing the steel sleeve as claimed in claim 1, wherein: the electric cylinder (53) is provided with at least two electric cylinders (53) which are arranged between the annular plate (51) and the supporting circular plate (52), the telescopic clamping piece (60) and the connecting rod (20) are provided with at least two connecting rods (20) and the telescopic clamping piece (60) which are arranged at intervals and staggered with each other.

3. The tapping and processing device for manufacturing the steel sleeve as claimed in claim 1, wherein: underframe (2) upper end left part position fixes first motor (3), first motor (3) are connected with center tube (54) transmission through bevel gear drive assembly (4), bevel gear drive assembly (4) are including fixing the first bevel gear at first motor (3) output shaft right-hand member and fixing the second bevel gear in center tube (54) annular outer end, first bevel gear and second bevel gear meshing installation, first bevel gear and second bevel gear all establish and support plectane (52) downside, underframe (2) upper end is seted up round hole and the inside rotary joint (13) that runs through of round hole, rotary joint (13) upper end is connected with center tube (54), rotary joint (13) lower extreme connection gas-supply pipe.

4. The tapping and processing device for manufacturing the steel sleeve as claimed in claim 1, wherein: the U-shaped frame (12) is slidably mounted between the first vertical rod and the second vertical rod, the U-shaped frame (12) is arranged on the lower side of the guide plate (61), the first reversing switch (11) and the second reversing switch (20) are fixed on the upper end of the U-shaped frame (12) in a bilateral symmetry mode, the U-shaped frame (12) is arranged on the outer side of the tapping rod (10), the screw rods are fixed on the left end and the right end of the U-shaped frame (12) respectively and are arranged inside the two sliding grooves respectively, the annular outer ends of the two screw rods are connected with nuts respectively, the two nuts are respectively attached to the left end of the first vertical rod and the right end of the second vertical rod, scale marks are processed on the front end of the first vertical rod and the front end of the second vertical rod, the first reversing switch (11) is electrically connected with the second motor (8), and the first reversing switch and the first start-stop switch which are electrically connected with the second motor (8), and a second forward rotation switch and a second start-stop switch which are electrically connected with a third motor (9) are fixed at the upper end of the support (6).

5. The tapping and processing device for manufacturing the steel sleeve as claimed in claim 1, wherein: the gear rack transmission structure (7) comprises a cylindrical gear fixed at the front end of an output shaft of the second motor (8) and a rack fixed at the upper end of the third motor (9), a through hole used for accommodating the rack is formed in the upper end of the support (6), and the rack and the cylindrical gear are installed in a meshed mode.

6. The tapping and processing device for manufacturing the steel sleeve as claimed in claim 1, wherein: the front end and the rear end of the second vertical rod are both fixed with the inclined rods, and the two inclined rods are both fixed at the upper end of the bottom plate (1).