CN212935113U - Iron pipe piercing assembly - Google Patents

Abstract

The utility model discloses an iron pipe punctures subassembly, be applicable to tube throat extrusion moulding machine, this iron pipe punctures subassembly makes the iron pipe of holding in the corresponding holding cell body jack-up's that top makes top slider mechanism, punctures the stationary knife, punctures the sword, puncture the sword, synchronous drive punctures the stationary knife and punctures the sword and moves down in order to press from both sides the power cylinder that moves down that establishes the iron pipe, puncture the stationary knife power cylinder of stationary knife butt iron pipe one side through lever drive and puncture the sword through lever drive and puncture the sword power cylinder that moves the sword thorn to the iron pipe opposite side to the slider mechanism of iron pipe fixing base on the iron pipe puncture station including the top. The technical scheme can be applied to a pipe shell necking extrusion forming machine.

Description

Iron pipe piercing assembly

Technical Field

The utility model relates to a USB connector equipment technical field, in particular to subassembly is punctureed to iron pipe.

Background

With the rapid development of electronic science and technology, USB connectors are widely used in electronic products, such as smart phones, computers, televisions, home appliances, and the like. A TYPE C USB connector typically includes two components, a TYPE C USB terminal and a TYPE C shell. Wherein, TYPE C USB terminal is also known as the USB inner core, and the integration has many electric conduction and signal transmission passageway on the TYPE C USB terminal, and the TYPE C tube shell is used for protecting TYPE C USB terminal to reach and peg graft mutually with peripheral hardware or connecting wire as general interface. Among the prior art, the shaping of TYPE C pipe is mainly through manual operation mode, carries out throat and flaring operation to the raw materials iron pipe of TYPE C pipe respectively to the shaping obtains corresponding TYPE C pipe, therefore, efficiency ten minutes is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an iron pipe punctures subassembly, and it can use in the extrusion moulding machine of pipe throat, and the operation is punctureed to supplementary pipe throat extrusion moulding machine's automation completion iron pipe, can guarantee its quality of punctureing simultaneously.

In order to achieve the above object, the utility model provides a pair of subassembly is punctureed to iron pipe is applicable to the tube throat extrusion moulding machine, the subassembly is punctureed to the iron pipe makes the slider mechanism, the puncture stationary knife of the iron pipe jack-up upwards of iron pipe of holding in corresponding holding cell body, punctures the sword, synchronous drive puncture the stationary knife with puncture the sword and move down in order to press from both sides and establish the power cylinder that moves down of iron pipe, drive through lever drive puncture the stationary knife butt the stationary knife power cylinder of iron pipe one side and drive through lever drive puncture the sword puncture to the moving knife power cylinder of iron pipe opposite side.

Optionally, the top slider mechanism includes a slider ejector rod and an ejector rod telescopic power cylinder for driving the slider ejector rod to stretch and retract so as to eject the slider.

Optionally, the fixed knife power cylinder is in driving connection with the puncture fixed knife through a fixed knife linkage lever.

Optionally, one end of the fixed knife linkage lever is fixedly connected with a cylinder shaft of the fixed knife power cylinder, and the other end of the fixed knife linkage lever is fixedly connected with the fixed piercing knife.

Optionally, the movable knife power cylinder is in driving connection with the piercing movable knife through a movable knife linkage lever.

Optionally, one end of the movable blade linkage lever is fixedly connected with a cylinder shaft of the movable blade power cylinder, and the other end of the movable blade linkage lever is fixedly connected with the piercing movable blade.

The utility model provides an iron pipe punctures subassembly is applicable to the pipe throat extrusion moulding machine, and this iron pipe punctures subassembly includes top slider mechanism, punctures the stationary knife, punctures and moves the sword, moves down power cylinder, stationary knife power cylinder and moves sword power cylinder. Therefore, when the top sliding block mechanism works, the sliding block of the iron pipe fixing seat which is pushed to the iron pipe puncturing station enables the iron pipe to be punctured and accommodated in the corresponding accommodating groove body to be jacked upwards, the power cylinder moves downwards to work, the puncturing fixed knife and the puncturing movable knife are synchronously driven to move downwards to clamp the iron pipe, at the moment, the power cylinder of the fixed knife works firstly, the puncturing fixed knife is driven to abut against one side of the iron pipe through lever transmission, then, the power cylinder of the movable knife works, the puncturing movable knife is driven to puncture towards the other side of the iron pipe through lever transmission, a puncturing opening is formed in the other side of the iron pipe, and then the puncturing operation of the iron pipe is completed. Therefore, the technical scheme can be applied to the pipe shell necking extrusion molding machine, assists the pipe shell necking extrusion molding machine to automatically complete the iron pipe puncture operation, and can ensure the puncture quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of an overall structure of a pipe shell necking extrusion molding machine according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of an iron pipe necking assembly of the pipe shell necking extrusion machine shown in fig. 1.

Fig. 3 is a schematic structural diagram of a first iron pipe flaring assembly of the pipe shell necking and extrusion molding machine shown in fig. 1.

Fig. 4 is a schematic structural view of an iron pipe piercing assembly of the pipe shell necking extrusion machine shown in fig. 1.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, the embodiment of the utility model provides a shell throat extrusion molding machine 100, this shell throat extrusion molding machine 100 includes first shaping district and second shaping district, and first shaping district is including the iron pipe material loading station 101 that sets gradually, iron pipe plastic station 102, first transition station 103, iron pipe throat station 104, second transition station 105, iron pipe upset station 106 and the feeding mechanical arm 121 that drives the iron pipe and transmit in proper order at each station in first shaping district. The second forming area comprises a feeding turntable 122, and a third transition station 107, a first iron pipe flaring station 108, a second iron pipe flaring station 109, an iron pipe piercing station 110 and a finished product blanking station 111 which are sequentially arranged around the feeding turntable 122. In addition, the tube shell necking extrusion molding machine 100 further comprises an iron pipe feeding assembly 130, an iron pipe shaping assembly 140, an iron pipe necking assembly 150, an iron pipe overturning assembly 160, a first iron pipe flaring assembly 171, a second iron pipe flaring assembly 172, an iron pipe piercing assembly 180 and a finished product blanking assembly 191, wherein the iron pipe feeding assembly 130 is in butt joint with the iron pipe feeding station 101 and is mainly used for conveying an iron pipe, overturning the iron pipe conveyed in place to enable the iron pipe to be in an upright state and then transferring the iron pipe to the iron pipe feeding station 101. The iron pipe shaping assembly 140 is butted with the iron pipe shaping station 102 and is mainly used for carrying out iron pipe shaping operation on the upper end of the iron pipe on the iron pipe shaping station 102. The iron pipe necking assembly 150 is butted with the iron pipe necking station 104, and is mainly used for necking the upper end of the iron pipe subjected to the shaping operation on the iron pipe necking station 104. The iron pipe overturning assembly 160 is respectively abutted to the iron pipe overturning station 106 and the third transition station 107, and is mainly used for carrying out 180-degree overturning operation on the iron pipe subjected to necking operation on the iron pipe overturning station 106, so that the lower end of the iron pipe is transferred to the third transition station 107 after being arranged upwards. The first iron pipe flaring assembly 171 is in butt joint with the first iron pipe flaring station 108 and is mainly used for flaring the lower end of an iron pipe on the first iron pipe flaring station 108, so that the lower end of the iron pipe is flared to a first preset caliber. The second iron pipe flaring assembly 172 is in butt joint with the second iron pipe flaring station 109 and is mainly used for performing flaring operation on the lower end of the iron pipe on the second iron pipe flaring station 109 again according to actual product requirements, so that the lower end of the iron pipe is flared to a second preset caliber. The iron pipe piercing assembly 180 is in butt joint with the iron pipe piercing station 110 and is mainly used for performing side wall piercing operation on the lower end of the iron pipe subjected to flaring operation on the iron pipe piercing station 110 to obtain a finished product. The finished product blanking assembly 191 is in butt joint with the finished product blanking station 111 and is mainly used for carrying out blanking operation on finished products on the finished product blanking station 111.

In this embodiment, as shown in fig. 1, the feeding turntable 122 includes a turntable main body and a rotating power motor for driving the turntable main body to rotate, six iron pipe fixing seats 10 are uniformly distributed on the turntable main body along a circumferential direction thereof, and each iron pipe fixing seat 10 is provided with an accommodating groove body for accommodating and fixing an iron pipe and a slider with a wedge-shaped groove, which is movably disposed at a bottom side of the accommodating groove body so that the iron pipe accommodated in the accommodating groove body is pushed up upwards or retracted downwards. A blanking detection station 112 is further arranged between the finished product blanking station 111 and the third transition station 107, the tube shell necking extrusion molding machine 100 further comprises a blanking detection assembly 192, and the blanking detection assembly 192 is in butt joint with the blanking detection station 112 and is mainly used for detecting whether a residual finished product exists on the blanking detection station 112 and giving an alarm prompt when the residual finished product is detected. After the main body of the rotary table rotates and stands still each time, the six iron pipe fixing seats 10 can be respectively positioned on a third transition station 107, a first iron pipe flaring station 108, a second iron pipe flaring station 109, an iron pipe piercing station 110, a finished product blanking station 111 and a blanking detection station 112.

As shown in fig. 1, an iron pipe feeding station 101, an iron pipe shaping station 102, a first transition station 103, an iron pipe necking station 104, a second transition station 105 and an iron pipe overturning station 106 are sequentially arranged at equal intervals. The feeding mechanical arm 121 comprises a mechanical gripper mounting seat and a power mechanism for driving the mechanical gripper mounting seat to move back and forth in a lifting and translation manner, five mechanical grippers are uniformly arranged on the mechanical gripper mounting seat, and the distance between every two mechanical grippers is equal to the distance between every two stations of the first forming area. When the device works, the five mechanical grippers can simultaneously grab the iron pipes of the corresponding stations, and the iron pipes of each station are respectively moved to the next station in sequence under the driving of the power mechanism.

As shown in fig. 1, the iron pipe feeding assembly 130 includes an iron pipe feeding channel 131, a vibration tray 132 for driving the iron pipe to be conveyed along the iron pipe feeding channel 131, an overturning cassette (not shown) for abutting against the end of the iron pipe feeding channel 132, an optical fiber feeding detection mechanism 133 for detecting whether the iron pipe reaches the overturning cassette, an overturning mechanism 134 for driving the overturning cassette to overturn ninety degrees so as to enable the iron pipe to be in an upright state, and an iron pipe pushing mechanism 135 for pushing the upright iron pipe to the iron pipe feeding station 101. During operation, the iron pipe is under the drive of vibration dish 132 along iron pipe material loading say 131 forward conveying, detect the iron pipe and convey back on the terminal upset cassette of iron pipe material loading say 131 when optic fibre feeding detection mechanism 133, tilting mechanism 134 begins work, make the upset cassette drive the ninety degrees backs of iron pipe upset, the iron pipe is upright state and is located between iron pipe pushing mechanism 135 and the iron pipe material loading station 101, at this moment, iron pipe pushing mechanism 135 works, can push the iron pipe of upright state to iron pipe material loading station 101 by the upset cassette, and then accomplish the material loading operation of an iron pipe, then, iron pipe pushing mechanism 135 resets respectively with tilting mechanism 134, in order to continue the material loading operation of next iron pipe.

As shown in fig. 1, a positioning iron core (not shown) for sleeving a fixed iron pipe is fixedly disposed on the iron pipe shaping station 102, the iron pipe shaping assembly 140 includes an elastic clamping arm, a first power cylinder for driving the elastic clamping arm to move forward integrally so that the positioning iron core is located between clamping ends of the elastic clamping arm, a clamping arm pressing knife for driving the clamping end of the elastic clamping arm to clamp the iron pipe fixed on the positioning iron core so that the driving end of the elastic clamping arm movably presses the clamping end of the elastic clamping arm, and a second power cylinder for driving the clamping arm pressing knife to move forward so that the clamping arm pressing knife presses the driving end of the elastic clamping arm. Specifically, two arms of the clamping end and two arms of the driving end are arranged in a staggered linkage mode, and a return spring is connected between the two arms of the driving end. When the device works, when an iron pipe sleeve to be shaped is fixed on a positioning iron core on the iron pipe shaping station 102, a first power cylinder drives the elastic clamping arm to move forwards integrally to enable an iron pipe to be shaped on the positioning iron core to be positioned between two arms of a clamping end of the elastic clamping arm, then a second power cylinder drives the clamping arm extrusion cutter to move forwards to enable the clamping arm extrusion cutter to press between two arms of a driving end of the elastic clamping arm, so that the two arms of the driving end are opened, the two arms of the clamping end clamp two sides of the iron pipe to be shaped to clamp and shape the iron pipe to be shaped, the deformed size of two sides of the iron pipe is clamped to the required size, after the whole shaping process is completed, the second power cylinder drives the clamping arm extrusion cutter to move forwards and retreat to reset, the two arms of the driving end reset under the action of a reset spring, the two arms of the clamping end are opened, and finally, the first power cylinder drives the elastic clamping arm, so as to enter the shaping process of the next iron pipe.

As shown in fig. 1 and 2, a positioning iron core (not shown) for sleeving and fixing an iron pipe is fixedly arranged on the iron pipe necking station 104, the iron pipe necking assembly 150 includes two oppositely arranged necking lower dies 151, a necking upper die 152 located above the two necking lower dies 151, a forward moving power cylinder 153 for driving the iron pipe necking station 104 to move forward to enable the iron pipe on the iron pipe necking station 104 to be located between the two necking lower dies 151, a lower die clamping arm (not shown) for clamping the iron pipe by pressing the outer sides of the two necking lower dies 151 to enable the inner sides of the two necking lower dies 152 to be closed, and a necking down pressure power cylinder 154 for synchronously driving the lower die clamping arm and the necking upper die 152 to press down. Specifically, the necking down power cylinder 154 is simultaneously connected to the lower die engaging arm and the necking up die 152 by a first linkage lever 155, i.e. one end of the first linkage lever 155 is tightly connected to the cylinder shaft of the necking down power cylinder 154, and the other end of the first linkage lever 155 is simultaneously connected to the lower die engaging arm and the necking up die 152. When the device works, when an iron pipe sleeve to be reduced is fixed on a positioning iron core on an iron pipe reducing station 104, the forward moving power cylinder 153 drives the iron pipe reducing station 104 to move forward to enable an iron pipe on the iron pipe reducing station 104 to be positioned between two reducing lower dies 151, at the moment, the reducing lower pressing power cylinder 154 works, the lower die clamping arms and the reducing upper dies 152 are synchronously driven to press down through linkage of a first linkage lever 155, the lower die clamping arms and the reducing upper dies 152 are enabled to extrude the outer sides of the two reducing lower dies 151 firstly due to a certain height difference between the lower die clamping arms and the reducing upper dies 152 so that the inner sides of the two reducing lower dies 152 are folded and fixed on two sides of the iron pipe, the reducing upper dies 152 are pressed towards the upper end of the iron pipe to enable the upper end edge of the iron pipe to be bent inwards to form a certain radian, further reducing operation of the iron pipe is completed, and finally, the reducing lower pressing power cylinder 154 and the forward moving power cylinder 153 are reset in sequence, so as to perform the necking operation of the next iron pipe.

As shown in fig. 1, the iron pipe turning assembly 160 includes an iron pipe clamping hand for clamping the iron pipe at the iron pipe turning station, a turning power motor for driving the iron pipe clamping hand for 180-degree turning, a forward moving power cylinder for driving the iron pipe clamping hand for clamping the iron pipe and for 180-degree turning, and an iron pipe transfer mechanical arm for transferring the iron pipe at the iron pipe clamping hand to the third transition station. The during operation of iron pipe upset subassembly 160, the iron pipe on the iron pipe upset station is pressed from both sides earlier to the iron pipe tong, then, the iron pipe tong that the iron pipe was pressed from both sides in upset power motor drive carries out 180 degrees upsets, make the lower extreme of iron pipe up, then, antedisplacement power cylinder drive is pressed from both sides the iron pipe tong antedisplacement after iron pipe and 180 degrees upsets, make the position that keeps the iron pipe of lower extreme up state and third transition station keep the parallel and level, so that the iron pipe forwards the arm and presss from both sides it and transfer to third transition station, the iron pipe keeps the lower extreme up state all the time.

As shown in fig. 1 and 3, the first iron pipe flaring assembly 171 includes a first slider pulling mechanism 1711 for pulling the slider 101 of the iron pipe fixing seat 10 at the first iron pipe flaring station 108 to retract the iron pipe accommodated in the corresponding accommodating groove (not shown) downward, a first iron pipe flaring die 1712, and a first flaring downward-pressing power cylinder 1713 for driving the first iron pipe flaring die 1712 to press the iron pipe in the corresponding accommodating groove to flare the lower end of the iron pipe. Specifically, the first slider pulling mechanism 1711 includes a slider hooking rod hooking one end of the slider 101 and a hooking rod retracting power cylinder driving the slider hooking rod to retract and retract so as to pull the slider 101. The first flaring downward-pressing power cylinder 1713 is in driving connection with a first iron pipe flaring die 1712 through a second linkage lever 1714, namely, one end of the second linkage lever 1714 is in fastening connection with a cylinder shaft of the first flaring downward-pressing power cylinder 1713, and the other end of the second linkage lever 1714 is in fastening connection with the first iron pipe flaring die 1712. When the iron pipe expanding device works, the first sliding block mechanism 1711 firstly pulls the sliding block 101 of the iron pipe fixing seat 10 on the first iron pipe expanding station 108 to enable the iron pipe accommodated in the corresponding accommodating groove body to retract downwards, then the first expanding downward pressing power cylinder 1713 works, the first iron pipe expanding die 1712 is driven to press the iron pipe in the corresponding accommodating groove body through linkage of the second linkage lever 1714, the first iron pipe expanding die 1712 is made to extrude the inner side of the lower end of the iron pipe, so that the lower end of the iron pipe is expanded to a first preset caliber, and then the expanding operation of the iron pipe is completed, and finally, the first expanding downward pressing power cylinder 1713 and the first sliding block mechanism 1711 reset in sequence so as to perform the reducing operation of the next iron pipe.

As shown in fig. 1, the second flaring assembly 172 is substantially the same as the first flaring assembly 171, and also includes a second slider pulling mechanism for pulling the slider of the iron pipe fixing seat 10 at the second flaring station 109 to retract the iron pipe accommodated in the corresponding accommodating groove downward, a second flaring die for flaring the iron pipe, and a second flaring downward-pressing power cylinder for driving the second flaring die to press the iron pipe in the corresponding accommodating groove to perform a secondary flaring operation on the lower end of the iron pipe. Generally speaking, the second iron pipe flaring assembly 172 does not work, and only the first iron pipe flaring assembly 171 works, that is, after the iron pipe on the first iron pipe flaring station 108 rotates along with the feeding turntable 122 to reach the lower part of the first iron pipe flaring mold, the first iron pipe flaring assembly 171 flares the iron pipe, so that the lower end of the iron pipe flares to a first preset caliber. When the product needs a larger size, the second iron pipe flaring assembly 172 works to perform secondary flaring operation on the product, so that the lower end of the iron pipe is flared to a second preset caliber. Since the second predetermined caliber is larger than the first predetermined caliber, the outer diameter of the second iron pipe flaring die is larger than the first iron pipe flaring die 1712.

As shown in fig. 1 and 4, the iron pipe piercing assembly 180 includes a top slider mechanism 181 which pushes the slider 101 of the iron pipe fixing seat 10 on the iron pipe piercing station 110 upward to jack up the iron pipe accommodated in the corresponding accommodating groove, a piercing fixed knife 182, a piercing movable knife 183, a downward moving power cylinder 184 which synchronously drives the piercing fixed knife 182 and the piercing movable knife 183 to move downward to clamp the iron pipe, a fixed knife power cylinder 185 which drives the piercing fixed knife 182 to abut against one side of the iron pipe through lever transmission, and a movable knife power cylinder 186 which drives the piercing movable knife 183 to pierce toward the other side of the iron pipe through lever transmission. Specifically, the top slider mechanism 181 includes a slider top bar and a top bar stretching power cylinder that drives the slider top bar to stretch and contract so as to push the slider 101. The fixed cutter power cylinder 185 is in driving connection with the fixed cutter 182 through the fixed cutter linkage lever 187, namely, one end of the fixed cutter linkage lever 187 is in fastening connection with the cylinder shaft of the fixed cutter power cylinder 185, and the other end of the fixed cutter linkage lever 187 is in fastening connection with the fixed cutter 182. The moving blade power cylinder 186 is in driving connection with the piercing moving blade 183 through the moving blade linkage lever 188, namely, one end of the moving blade linkage lever 188 is in fastening connection with a cylinder shaft of the moving blade power cylinder 186, and the other end of the moving blade linkage lever 188 is in fastening connection with the piercing moving blade 183. When the device works, the top sliding block mechanism 181 firstly pushes the sliding block 101 of the iron pipe fixing seat 10 on the iron pipe piercing station 110 to make the iron pipe accommodated in the corresponding accommodating groove body jack up upwards, the downward moving power cylinder 184 operates to synchronously drive the piercing fixed knife 182 and the piercing movable knife 183 to move downward to clamp the iron pipe (i.e. the iron pipe is located between the piercing fixed knife 182 and the piercing movable knife 183), the fixed cutter power cylinder 185 firstly works to drive the puncture fixed cutter 182 to abut against one side of the iron pipe through lever transmission, then, the moving blade power cylinder 186 works to drive the piercing moving blade 183 to pierce to the other side of the iron pipe through lever transmission, so that a piercing opening is formed on the other side of the iron pipe, and then the piercing operation of the iron pipe is completed, and finally, the movable cutter power cylinder 186, the fixed cutter power cylinder 185, the downward moving power cylinder 184 and the top slider mechanism 181 are reset in sequence so as to perform the piercing operation of the next iron pipe.

As shown in fig. 1, the finished product blanking assembly 190 includes a finished product receiving box disposed adjacent to the finished product blanking station 111, a finished product gripper for gripping a finished product on the finished product blanking station 111, and a gripper power mechanism for driving the finished product gripper to move up and down and translate to transfer the finished product from the finished product blanking station 111 to the finished product receiving box. When the blanking device works, the finished product clamping hand is driven by the clamping hand power mechanism to clamp the finished product on the finished product blanking station 111, and then the finished product is transferred into the finished product receiving box under the driving of the clamping hand power mechanism, so that the blanking operation of the finished product is completed.

The iron pipe piercing assembly provided by the embodiment is suitable for a pipe shell necking extrusion forming machine, and comprises a top sliding block mechanism, a piercing fixed cutter, a piercing movable cutter, a downward moving power cylinder, a fixed cutter power cylinder and a movable cutter power cylinder. Therefore, when the top sliding block mechanism works, the sliding block of the iron pipe fixing seat which is pushed to the iron pipe puncturing station enables the iron pipe to be punctured and accommodated in the corresponding accommodating groove body to be jacked upwards, the power cylinder moves downwards to work, the puncturing fixed knife and the puncturing movable knife are synchronously driven to move downwards to clamp the iron pipe, at the moment, the power cylinder of the fixed knife works firstly, the puncturing fixed knife is driven to abut against one side of the iron pipe through lever transmission, then, the power cylinder of the movable knife works, the puncturing movable knife is driven to puncture towards the other side of the iron pipe through lever transmission, a puncturing opening is formed in the other side of the iron pipe, and then the puncturing operation of the iron pipe is completed. Therefore, the technical scheme can be applied to the pipe shell necking extrusion molding machine, assists the pipe shell necking extrusion molding machine to automatically complete the iron pipe puncture operation, and can ensure the puncture quality.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (6)

1. An iron pipe piercing assembly is suitable for a pipe shell necking extrusion molding machine and is characterized by comprising a top sliding block mechanism, a piercing fixed knife, a piercing movable knife, a downward moving power cylinder, a fixed knife power cylinder and a movable knife power cylinder, wherein the top sliding block mechanism is used for pushing a sliding block of an iron pipe fixing seat on an iron pipe piercing station to enable an iron pipe accommodated in a corresponding accommodating groove body to be upwards jacked up, the piercing fixed knife and the piercing movable knife are synchronously driven to move downwards to clamp the iron pipe, the piercing fixed knife is driven to abut against the fixed knife power cylinder on one side of the iron pipe through lever transmission, and the piercing movable knife is driven to pierce towards the other side of the iron pipe through lever transmission.

2. The iron pipe piercing assembly of claim 1, wherein the slider-ejecting mechanism includes a slider ejector rod and an ejector rod telescopic power cylinder driving the slider ejector rod to telescope to eject the slider.

3. The iron pipe piercing assembly of claim 1, wherein the stationary knife power cylinder is drivingly connected to the piercing stationary knife via a stationary knife linkage lever.

4. The iron pipe piercing assembly of claim 3, wherein one end of the fixed knife linkage lever is fixedly connected with a cylinder shaft of the fixed knife power cylinder, and the other end of the fixed knife linkage lever is fixedly connected with the piercing fixed knife.

5. The iron pipe piercing assembly of claim 1, wherein the moving blade power cylinder is drivingly connected to the piercing moving blade through a moving blade linkage lever.

6. The iron pipe piercing assembly of claim 5, wherein one end of the movable knife linkage lever is fixedly connected with a cylinder shaft of the movable knife power cylinder, and the other end of the movable knife linkage lever is fixedly connected with the piercing movable knife.

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