CN110919110A

CN110919110A - Tapping equipment for end part of side part of connecting shaft

Info

Publication number: CN110919110A
Application number: CN201911277265.5A
Authority: CN
Inventors: 张晓昊; 白聚勇; 董国辉; 翟秀军; 刘燕鹏
Original assignee: Jiujiang Qingyan Aegis Technology Co Ltd
Current assignee: Jiujiang Qingyan Aegis Technology Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-03-27

Abstract

The invention belongs to the field of tapping equipment, in particular to tapping equipment for the side end part of a connecting shaft, which aims at solving the problems that the prior tapping equipment is not provided with a fixed clamping function, so that the connecting shaft is easy to slide when the tapping is carried out on the connecting shaft, the tapping fails, meanwhile, the common tapping adopts manual operation, great working strength is brought to workers, the working efficiency is low, and the requirement of mass production cannot be met, and the invention provides the following scheme, which comprises a fixed seat, wherein fixed columns are fixedly arranged on both sides of the bottom of the fixed seat, and one side, close to each other, of the two fixed columns is fixedly provided with the same fixed plate positioned below the fixed seat, the invention has simple structure and convenient operation, can quickly and conveniently carry out fixed clamping on a connecting shaft main body, prevents the connecting shaft main body from sliding during tapping, and simultaneously realizes automatic tapping, improves the working efficiency, is suitable for large-scale production and meets the requirements of people.

Description

Tapping equipment for end part of side part of connecting shaft

Technical Field

The invention relates to the technical field of tapping equipment, in particular to tapping equipment for an end part of a side part of a connecting shaft.

Background

The shaft is a cylindrical object which is penetrated in the middle of a bearing or a wheel or in the middle of a gear, but a small part of the shaft is square, the shaft is a mechanical part which supports a rotating part and rotates together with the rotating part to transfer motion, torque or bending moment, the shaft is generally in the shape of a metal round rod, each section can have different diameters, and the part which does rotary motion in the machine is arranged on the shaft;

among the prior art, because of the connecting axle does not possess the function of fixed centre gripping, so when carrying out the tapping to the connecting axle, lead to the connecting axle to slide easily, lead to the tapping failure, simultaneously, general tapping all adopts manually, has brought very big working strength for the staff, and work efficiency is low moreover, can not satisfy mass production's needs.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, because a connecting shaft does not have a fixing and clamping function, when the connecting shaft is tapped, the connecting shaft is easy to slide, so that tapping failure is caused, meanwhile, common tapping is performed manually, great working strength is brought to workers, working efficiency is low, and the requirement of mass production cannot be met, and the tapping equipment for the side end part of the connecting shaft is provided.

In order to achieve the purpose, the invention adopts the following technical scheme: a tapping device for the end part of the lateral part of a connecting shaft comprises a fixed seat, wherein fixed columns are fixedly arranged on two sides of the bottom of the fixed seat, one side, close to each other, of each of two fixed columns is fixedly provided with a fixed plate located below the fixed seat, a first rotating hole is formed in the fixed seat, a first rotating rod is rotatably arranged in the first rotating hole, one side, close to each other, of each of the two fixed columns is fixedly provided with a first plate, two limiting springs are fixedly arranged on the two first plates, contact plates are fixedly arranged at the top ends of the two limiting springs, rotating discs are contacted with the top ends of the two contact plates, rotating columns are fixedly arranged in the rotating discs, annular grooves are formed in the top ends of the rotating columns, the bottom ends of the first rotating rods extend into the annular grooves and are in sliding connection with the annular grooves, two sliding blocks are respectively connected with corresponding sliding grooves in a sliding manner, two mounting plates are fixedly mounted at the bottom of the fixing seat, second rotating holes are formed in the two mounting plates, rotating grooves are formed in the mutually close sides of the two fixing columns, the same second rotating rod is rotatably mounted in the rotating grooves and the second rotating holes, the mutually close ends of the two second rotating rods respectively extend to the outer sides of the corresponding mounting plates and are fixedly provided with eccentric wheels, the top of the rotating disc is in contact with the two eccentric wheels, embedded grooves positioned above the second rotating holes are formed in the mutually close sides of the two mounting plates, embedded rods are rotatably mounted in the two embedded grooves, the mutually close ends of the two embedded rods respectively extend to the outer sides of the corresponding mounting plates and are fixedly provided with first bevel gears, and second bevel gears are fixedly sleeved on the outer sides of the first rotating rods, and two first bevel gears are meshed with the second bevel gear, the motor is fixedly mounted at the top of the fixed seat, the top end of the first rotating rod extends to the upper part of the fixed seat and is fixedly connected with an output shaft of the motor, the connecting disc is fixedly mounted at the bottom of the rotating column, a screw tap is fixedly mounted at the bottom end of the connecting disc, and the first bevel gear and the second bevel gear change the rotating direction.

Preferably, two sliding chutes are formed in the top of the fixing plate, the second plate is slidably mounted in the two sliding chutes, mounting holes are formed in the second plate, mounting rods are slidably mounted in the mounting holes, and the second plate is moved to drive the clamping plate to move.

Preferably, the clamping grooves are formed in the inner walls of the bottoms of the two sliding grooves, the bottom ends of the two mounting rods are clamped with the corresponding clamping grooves respectively, the clamping plates are fixedly mounted on the sides, close to the two second plates, of the two second plates, and the mounting rods and the clamping grooves are clamped to fix the second plates.

Preferably, two contact plates are all provided with limiting holes, two limiting holes are internally and evenly provided with limiting rods in a sliding mode, the bottom ends of the two limiting rods respectively extend to the lower portion of the corresponding contact plate and are fixedly connected with the top of the corresponding first plate, and the limiting rods limit the contact plates.

Preferably, the top of two gag lever posts extends to the top and the fixed mounting of corresponding contact plate respectively has the stopper, and the rectangular channel has all been seted up to the both sides of gag lever post, and the stopper carries on spacingly to the gag lever post.

Preferably, equal fixed mounting has the rectangular block on the both sides inner wall of spacing hole, and two rectangular blocks respectively with corresponding rectangular channel sliding connection, have all seted up the circular port on two rectangular blocks, equal sliding mounting has the circular pole in two circular ports, and the top and the bottom of circular pole respectively with the top inner wall and the bottom inner wall fixed connection of corresponding rectangular channel, the circular pole is spacing to the rectangular block.

Preferably, the top ends of the two limiting rods extend to the top of the corresponding second plate respectively and are fixedly provided with pull rods, the bottom of each pull rod is fixedly provided with a return spring sleeved outside the corresponding limiting rod, the bottom ends of the two return springs are fixedly connected with the top of the corresponding second plate respectively, and the return springs play a role in limiting and resetting.

Preferably, the number of the limiting springs is multiple, the top ends and the bottom ends of the limiting springs are respectively and fixedly connected with one side, close to the corresponding first plate and the corresponding contact plate, of the contact plate, and the limiting springs play roles in limiting and resetting.

Preferably, all meshed with the chain on two second dwang, and two second dwang are connected with corresponding embedding pole transmission respectively through two chains, and the second dwang passes through the chain and drives the embedding pole and rotate.

Preferably, the quantity of draw-in groove is a plurality of, and a plurality of draw-in grooves are the horizontal direction equidistance and distribute on the bottom inner wall of sliding tray, and a plurality of draw-in grooves can carry out multi-angle fixed to the grip block.

In the tapping device for the end part of the side part of the connecting shaft, in use, the connecting shaft main body is placed on the fixing plate, then the two pull rods are pulled, the two pull rods drive the two mounting rods to move, the two mounting rods are moved out of the two clamping grooves, then the two second plates are moved, and the two clamping plates fixedly clamp the connecting shaft main body.

When the fixed centre gripping of connecting axle main part is firm, then loosen two pull rods, under the spring resilience effort through two reset spring, make two installation pole blocks go into two draw-in grooves, then starter motor, the output shaft of motor drives first rotation pole and rotates, and the rolling disc drives the connection pad and rotates, and the connection pad drives the screw tap and rotates.

Meanwhile, the first rotating rod drives the second bevel gear to rotate, the second bevel gear drives the two first bevel gears to rotate, the two first bevel gears drive the two embedded rods to rotate, the rotating disc drives the connecting disc to move, and the connecting disc drives the screw tap to move.

Through constantly removing downwards and the rotation to the screw tap, realized that the screw tap carries out the tapping to the connecting axle main part on the fixed plate, realized the automation.

The tapping machine is simple in structure and convenient to operate, can quickly and conveniently fix and clamp the connecting shaft main body, prevents the connecting shaft main body from sliding in tapping, meanwhile realizes automatic tapping, improves the working efficiency, is suitable for large-scale production, and meets the requirements of people.

Drawings

Fig. 1 is a front view schematically illustrating a tapping device for connecting side end portions of a shaft according to the present invention.

Fig. 2 is an enlarged schematic structural view of a part a of the connecting shaft side end tapping device according to the present invention.

FIG. 3 is an enlarged schematic view of part B of a connecting shaft side end tapping device according to the present invention.

FIG. 4 is an enlarged view of the part C of the tapping device for connecting the lateral end of a shaft according to the present invention.

Fig. 5 is an enlarged schematic structural view of part D of a connecting shaft side end tapping device according to the present invention.

In the figure: the device comprises a fixed seat 1, a fixed column 2, a fixed plate 3, a first rotating hole 4, a first rotating rod 5, a first plate 6, a limiting spring 7, a contact plate 8, a rotating disc 9, a rotating column 10, an annular groove 11, a sliding groove 12, a sliding block 13, a mounting plate 14, a second rotating hole 15, a rotating groove 16, a second rotating rod 17, an eccentric wheel 18, an embedded groove 19, an embedded rod 20, a first bevel gear 21, a second bevel gear 22, a motor 23, a connecting disc 24, a screw tap 25, a sliding groove 26, a second plate 27, a mounting hole 28, a mounting rod 29, a clamping groove 30, a clamping plate 31, a limiting hole 32, a limiting rod 33, a limiting block 34, a rectangular groove 35, a rectangular block 36, a circular hole 37, a circular rod 38, a pull rod 39 and a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The first embodiment is as follows: referring to fig. 1-5, a tapping device for connecting shaft side end portions comprises a fixed seat 1, fixed columns 2 are fixedly mounted on two sides of the bottom of the fixed seat 1, a fixed plate 3 located below the fixed seat 1 is fixedly mounted on one side, close to each other, of each of the two fixed columns 2, a first rotating hole 4 is formed in the fixed seat 1, a first rotating rod 5 is rotatably mounted in the first rotating hole 4, first plates 6 are fixedly mounted on one sides, close to each other, of the two fixed columns 2, limiting springs 7 are fixedly mounted on the two first plates 6, contact plates 8 are fixedly mounted on the top ends of the two limiting springs 7, rotating discs 9 are contacted with the top portions of the two contact plates 8, rotating columns 10 are fixedly mounted in the rotating discs 9, annular grooves 11 are formed in the top ends of the rotating columns 10, and the bottom ends of the first rotating rods 5 extend into the annular, spout 12 has all been seted up to the both sides of ring channel 11, the equal fixed mounting in both sides of first dwang 5 has slider 13, and two sliders 13 respectively with corresponding spout 12 sliding connection, the bottom fixed mounting of fixing base 1 has two mounting panels 14, second rotation hole 15 has all been seted up on two mounting panels 14, rotation groove 16 has all been seted up to one side that two fixed columns 2 are close to each other, and rotation groove 16 and the 15 internal rotations of second rotation hole install same second dwang 17, the one end that two second dwang 17 are close to each other extends to the outside of corresponding mounting panel 14 respectively and fixed mounting has eccentric wheel 18, and the top of rolling disc 9 contacts with two eccentric wheels 18, embedded groove 19 that is located second rotation hole 15 top is all seted up to one side that two mounting panels 14 are close to each other, all rotate in two embedded groove 19 and install embedding pole 20, the one end that two embedding poles 20 are close to each other extends to the outside of corresponding mounting panel 14 respectively and fixed First conical gear 21, the fixed cover in the outside of first rotation pole 5 is equipped with second conical gear 22, and two first conical gear 21 all mesh with second conical gear 22 mutually, and the top fixed mounting of fixing base 1 has motor 23, and the top of first rotation pole 5 extends to the top of fixing base 1 and with motor 23's output shaft fixed connection, the bottom fixed mounting of rotation post 10 has connection pad 24, the bottom fixed mounting of connection pad 24 has screw tap 25.

In the invention, two sliding grooves 26 are formed in the top of the fixing plate 3, a second plate 27 is slidably mounted in each of the two sliding grooves 26, a mounting hole 28 is formed in each second plate 27, and a mounting rod 29 is slidably mounted in each mounting hole 28.

In the invention, the inner walls of the bottoms of the two sliding grooves 26 are respectively provided with a clamping groove 30, the bottom ends of the two mounting rods 29 are respectively clamped with the corresponding clamping grooves 30, and the sides of the two second plates 27 close to each other are respectively fixedly provided with a clamping plate 31.

In the invention, two contact plates 8 are respectively provided with a limiting hole 32, limiting rods 33 are respectively arranged in the two limiting holes 32 in a sliding manner, and the bottom ends of the two limiting rods 33 respectively extend to the lower part of the corresponding contact plate 8 and are fixedly connected with the top of the corresponding first plate 6.

In the invention, the top ends of the two limiting rods 33 respectively extend to the upper part of the corresponding contact plate 8 and are fixedly provided with the limiting blocks 34, and both sides of the limiting rods 33 are provided with rectangular grooves 35.

In the invention, the inner walls of two sides of the limiting hole 32 are fixedly provided with rectangular blocks 36, the two rectangular blocks 36 are respectively connected with the corresponding rectangular grooves 35 in a sliding manner, the two rectangular blocks 36 are respectively provided with a circular hole 37, circular rods 38 are respectively arranged in the two circular holes 37 in a sliding manner, and the top ends and the bottom ends of the circular rods 38 are respectively fixedly connected with the top inner walls and the bottom inner walls of the corresponding rectangular grooves 35.

In the invention, the top ends of the two limiting rods 33 respectively extend to the upper parts of the corresponding second plates 27 and are fixedly provided with pull rods 39, the bottom parts of the pull rods 39 are fixedly provided with return springs 40 which are sleeved outside the limiting rods 33, and the bottom ends of the two return springs 40 are respectively and fixedly connected with the top parts of the corresponding second plates 27.

In the invention, the number of the limiting springs 7 is multiple, and the top ends and the bottom ends of the limiting springs 7 are respectively and fixedly connected with the side, close to each other, of the corresponding first plate 6 and the corresponding contact plate 8.

In the invention, chains are respectively meshed on the two second rotating rods 17, and the two second rotating rods 17 are respectively in transmission connection with the corresponding embedded rods 20 through the two chains.

In the present invention, there are a plurality of slots 30, and the plurality of slots 30 are equidistantly distributed on the inner wall of the bottom of the sliding groove 26 in the horizontal direction.

Example two: a tapping device for the end part of the lateral part of a connecting shaft comprises a fixed seat 1, wherein fixed columns 2 are fixedly connected to two sides of the bottom of the fixed seat 1 through bolts, one side, close to each other, of each fixed column 2 is fixedly connected with a fixed plate 3 positioned below the fixed seat 1 through bolts, a first rotating hole 4 is formed in the fixed seat 1, a first rotating rod 5 is rotatably installed in the first rotating hole 4, one side, close to each other, of each fixed column 2 is fixedly connected with a first plate 6 through bolts, limiting springs 7 are fixedly connected to the two first plates 6 through bolts, contact plates 8 are fixedly connected to the top ends of the two limiting springs 7 through bolts, rotating discs 9 are contacted with the top parts of the two contact plates 8, rotating columns 10 are fixedly connected to the rotating discs 9 through bolts, annular grooves 11 are formed in the top ends of the rotating columns 10, and the bottom ends of the first rotating columns 5 extend into the, the two sides of the annular groove 11 are both provided with sliding grooves 12, the two sides of the first rotating rod 5 are both fixedly connected with sliding blocks 13 through bolts, the two sliding blocks 13 are respectively connected with the corresponding sliding grooves 12 in a sliding manner, the bottom of the fixing seat 1 is fixedly connected with two mounting plates 14 through bolts, the two mounting plates 14 are both provided with second rotating holes 15, one sides of the two fixing columns 2 close to each other are both provided with rotating grooves 16, the same second rotating rod 17 is rotatably mounted in the rotating grooves 16 and the second rotating holes 15, the ends of the two second rotating rods 17 close to each other respectively extend to the outer sides of the corresponding mounting plates 14 and are fixedly connected with eccentric wheels 18 through bolts, the top of the rotating disc 9 is in contact with the two eccentric wheels 18, one sides of the two mounting plates 14 close to each other are both provided with embedded grooves 19 positioned above the second rotating holes 15, and embedded rods 20 are rotatably, the one end that two embedded rods 20 are close to each other extends to the outside of corresponding mounting panel 14 respectively and through the first conical gear 21 of bolt fixedly connected with, the fixed cover in outside of first rotation pole 5 is equipped with second conical gear 22, and two first conical gear 21 all mesh with second conical gear 22 mutually, bolt fixedly connected with motor 23 is passed through at the top of fixing base 1, and the top of first rotation pole 5 extends to the top of fixing base 1 and with motor 23's output shaft fixed connection, bolt fixedly connected with connection pad 24 is passed through to the bottom of rotation post 10, bolt fixedly connected with screw tap 25 is passed through to the bottom of connection pad 24, first conical gear 21 and second conical gear 22 change pivoted direction.

In the invention, two sliding grooves 26 are formed in the top of the fixed plate 3, a second plate 27 is slidably mounted in each of the two sliding grooves 26, a mounting hole 28 is formed in each second plate 27, a mounting rod 29 is slidably mounted in each mounting hole 28, and the movement of each second plate 27 drives the clamping plate 31 to move.

In the invention, the inner walls of the bottoms of the two sliding grooves 26 are respectively provided with a clamping groove 30, the bottom ends of the two mounting rods 29 are respectively clamped with the corresponding clamping grooves 30, the sides of the two second plates 27 close to each other are fixedly connected with clamping plates 31 through bolts, and the clamping of the mounting rods 29 and the clamping grooves 30 fixes the second plates 27.

In the invention, two contact plates 8 are respectively provided with a limiting hole 32, limiting rods 33 are slidably mounted in the two limiting holes 32, the bottom ends of the two limiting rods 33 respectively extend to the lower part of the corresponding contact plate 8 and are fixedly connected with the top of the corresponding first plate 6, and the limiting rods 33 limit the contact plate 8.

In the invention, the top ends of the two limiting rods 33 respectively extend to the upper parts of the corresponding contact plates 8 and are fixedly connected with limiting blocks 34 through bolts, rectangular grooves 35 are respectively formed in two sides of each limiting rod 33, and the limiting blocks 34 limit the limiting rods 33.

In the invention, the inner walls of two sides of the limiting hole 32 are fixedly connected with rectangular blocks 36 through bolts, the two rectangular blocks 36 are respectively connected with corresponding rectangular grooves 35 in a sliding manner, circular holes 37 are respectively formed in the two rectangular blocks 36, circular rods 38 are respectively installed in the two circular holes 37 in a sliding manner, the top ends and the bottom ends of the circular rods 38 are respectively fixedly connected with the inner walls of the top and the bottom of the corresponding rectangular grooves 35, and the circular rods 38 limit the rectangular blocks 36.

In the invention, the top ends of the two limiting rods 33 respectively extend to the upper parts of the corresponding second plates 27 and are fixedly connected with pull rods 39 through bolts, the bottom parts of the pull rods 39 are fixedly connected with return springs 40 which are sleeved on the outer sides of the limiting rods 33 through bolts, the bottom ends of the two return springs 40 are respectively and fixedly connected with the top parts of the corresponding second plates 27, and the return springs 40 play roles in limiting and resetting.

In the invention, the number of the limiting springs 7 is multiple, the top ends and the bottom ends of the limiting springs 7 are respectively and fixedly connected with the side, close to each other, of the corresponding first plate 6 and the corresponding contact plate 8, and the limiting springs 7 play roles in limiting and resetting.

In the invention, chains are respectively meshed on the two second rotating rods 17, the two second rotating rods 17 are respectively in transmission connection with the corresponding embedded rods 20 through the two chains, and the second rotating rods 17 drive the embedded rods 20 to rotate through the chains.

In the present invention, the number of the clamping grooves 30 is plural, and the plurality of clamping grooves 30 are equidistantly distributed on the inner wall of the bottom of the sliding groove 26 in the horizontal direction, and the plurality of clamping grooves 30 can fix the clamping plate 31 at multiple angles.

In the invention, in use, a connecting shaft main body is placed on a fixed plate 3, then two pull rods 39 are pulled, the two pull rods 39 stretch two return springs 40, the two return springs 40 absorb energy, meanwhile, the two pull rods 39 drive two mounting rods 29 to move, so that the two mounting rods 29 move out of two clamping grooves 30, then two second plates 27 are moved, the two second plates 27 drive two clamping plates 31 to move, the two clamping plates 31 fixedly clamp the connecting shaft main body, when the connecting shaft main body is fixedly and stably clamped, the two pull rods 39 are loosened, the two mounting rods 29 are clamped into the two clamping grooves 30 under the spring rebounding action force of the two return springs 40, then a motor 23 is started, the motor 23 is controlled by a control switch, the motor 23 is powered by commercial power, and an output shaft of the motor 23 drives a first rotating rod 5 to rotate, the first rotating rod 5 drives the two sliding blocks 13 to rotate, the two sliding blocks 13 drive the rotating column 10 to rotate, the rotating column 10 drives the rotating disc 9 to rotate, the rotating disc 9 drives the connecting disc 24 to rotate, the connecting disc 24 drives the screw tap 25 to rotate, meanwhile, the first rotating rod 5 drives the second bevel gear 22 to rotate, the second bevel gear 22 drives the two first bevel gears 21 to rotate, the two first bevel gears 21 drive the two embedded rods 20 to rotate, the two embedded rods 20 drive the two second rotating rods 17 to rotate through two chains, the two second rotating rods 17 drive the two eccentric wheels 18 to rotate, the two eccentric wheels 18 drive the same rotating disc 9 to move, the rotating disc 9 drives the two contact plates 8 to move, the two contact plates 8 compress the plurality of limiting springs 7, and the plurality of limiting springs 7 absorb energy, simultaneously, rolling disc 9 drives connection pad 24 and removes, connection pad 24 drives screw tap 25 and removes, through constantly move down and the rotation to screw tap 25, realized that screw tap 25 carries out the tapping to the connecting axle main part on the fixed plate 3, automation has been realized, thereby can be fast convenient fix the centre gripping to the connecting axle main part, prevent to cause the slip of connecting axle main part in the tapping, and simultaneously, automatic tapping has been realized, work efficiency is improved, and the tapping machine is suitable for large-scale production, and people's needs are satisfied.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A tapping device for end portions of lateral portions of connecting shafts comprises a fixing seat (1) and is characterized in that fixing columns (2) are fixedly mounted on two sides of the bottom of the fixing seat (1), one side, close to each other, of each fixing column (2) is fixedly provided with a fixing plate (3) located below the fixing seat (1), a first rotating hole (4) is formed in the fixing seat (1), a first rotating rod (5) is rotatably mounted in the first rotating hole (4), one side, close to each other, of each fixing column (2) is fixedly provided with a first plate (6), limiting springs (7) are fixedly mounted on the two first plates (6), contact plates (8) are fixedly mounted at the top ends of the two limiting springs (7), rotating discs (9) are contacted with the top portions of the two contact plates (8), rotating columns (10) are fixedly mounted in the rotating discs (9), and annular grooves (11) are formed in the top ends, and the bottom end of the first rotating rod (5) extends into the annular groove (11) and is connected with the annular groove (11) in a sliding manner, sliding grooves (12) are formed in two sides of the annular groove (11), sliding blocks (13) are fixedly arranged on two sides of the first rotating rod (5), the two sliding blocks (13) are respectively connected with the corresponding sliding grooves (12) in a sliding manner, two mounting plates (14) are fixedly arranged at the bottom of the fixing seat (1), second rotating holes (15) are formed in the two mounting plates (14), rotating grooves (16) are formed in the mutually close sides of the two fixing columns (2), the same second rotating rod (17) is rotatably arranged in the rotating grooves (16) and the second rotating holes (15), one mutually close end of the two second rotating rods (17) extends to the outer side of the corresponding mounting plate (14) and is fixedly provided with an eccentric wheel (18), and the top of the rotating disc (9) is contacted with the two eccentric wheels (18), one side of each of the two mounting plates (14) close to each other is provided with an embedded groove (19) positioned above the second rotating hole (15), each embedded groove (19) is internally and rotatably provided with an embedded rod (20), one end of each embedded rod (20) close to each other extends to the outer side of the corresponding mounting plate (14) and is fixedly provided with a first bevel gear (21), the outer side of the first rotating rod (5) is fixedly sleeved with a second bevel gear (22), the two first bevel gears (21) are meshed with the second bevel gear (22), the top of the fixed seat (1) is fixedly provided with a motor (23), and the top end of the first rotating rod (5) extends to the upper part of the fixed seat (1) and is fixedly connected with an output shaft of the motor (23), a connecting disc (24) is fixedly installed at the bottom of the rotating column (10), and a screw tap (25) is fixedly installed at the bottom end of the connecting disc (24).

2. Connecting shaft side end tapping equipment according to claim 1, wherein the top of the fixing plate (3) is provided with two sliding grooves (26), a second plate (27) is slidably mounted in each of the two sliding grooves (26), the second plate (27) is provided with a mounting hole (28), and a mounting rod (29) is slidably mounted in the mounting hole (28).

3. The tapping device for connecting shaft side end according to claim 2, wherein the two sliding grooves (26) are provided with a clamping groove (30) on the inner wall of the bottom, the bottom ends of the two mounting rods (29) are respectively clamped with the corresponding clamping groove (30), and the clamping plates (31) are fixedly mounted on the sides of the two second plates (27) close to each other.

4. The tapping device for the end part of the side part of the connecting shaft according to claim 1, wherein the two contact plates (8) are respectively provided with a limiting hole (32), a limiting rod (33) is slidably mounted in each limiting hole (32), and the bottom ends of the two limiting rods (33) respectively extend to the lower part of the corresponding contact plate (8) and are fixedly connected with the top part of the corresponding first plate (6).

5. The tapping device for the end part of the side part of the connecting shaft according to claim 4, wherein the top ends of the two limiting rods (33) extend to the upper side of the corresponding contact plate (8) and are fixedly provided with limiting blocks (34), and rectangular grooves (35) are formed in two sides of each limiting rod (33).

6. A connecting shaft side end tapping device according to claim 4, wherein the inner walls of both sides of the limiting hole (32) are fixedly provided with rectangular blocks (36), the two rectangular blocks (36) are respectively connected with the corresponding rectangular grooves (35) in a sliding manner, the two rectangular blocks (36) are respectively provided with a circular hole (37), the two circular holes (37) are respectively provided with a circular rod (38) in a sliding manner, and the top end and the bottom end of the circular rod (38) are respectively fixedly connected with the top inner wall and the bottom inner wall of the corresponding rectangular groove (35).

7. The connecting shaft side end tapping device according to claim 4, wherein the top ends of the two limiting rods (33) extend to the upper side of the corresponding second plate (27) respectively and are fixedly provided with pull rods (39), the bottom of each pull rod (39) is fixedly provided with return springs (40) sleeved on the outer sides of the limiting rods (33), and the bottom ends of the two return springs (40) are fixedly connected with the top of the corresponding second plate (27) respectively.

8. Connecting shaft side end tapping device according to claim 1, wherein said limiting spring (7) is in plurality, and the top and bottom ends of said limiting springs (7) are fixedly connected to the side of the corresponding first plate (6) and contact plate (8) close to each other, respectively.

9. A connecting shaft side end tapping apparatus according to claim 1, wherein two second rotating levers (17) are each engaged with a chain, and the two second rotating levers (17) are each drivingly connected to a corresponding embedded lever (20) through two chains.

10. A connecting shaft side end tapping apparatus according to claim 3, wherein said plurality of catching grooves (30) are provided in plural number, and a plurality of catching grooves (30) are provided in the bottom inner wall of the slide groove (26) in a horizontal direction at equal intervals.