CN219357577U - Automatic punching production line for closed rail - Google Patents

Abstract

The utility model discloses an automatic punching production line for a closed rail, which comprises a longitudinal conveyor and a stepping transverse conveyor, wherein the longitudinal conveyor is used for conveying elevator guide rails placed in a T shape to a turnover station, the turnover station is provided with a guide rail turnover mechanism which is used for turning the elevator guide rails from the T shape to be inverted T-shaped and placing the inverted T-shaped elevator guide rails on a guide rail buffer platform, two guide rail punching preset platforms and a transverse conveyor are sequentially arranged on the discharging side of the guide rail buffer platform along the guide rail advancing conveying direction, the stepping transverse conveyor can keep the elevator guide rails on the guide rail buffer platform to be transferred to each guide rail punching preset platform in an inverted T shape, and the elevator guide rails on each guide rail punching preset platform can be transferred to the transverse conveyor in an inverted T shape, and one punching unit and a material transferring mechanism are correspondingly arranged on one side of each guide rail punching preset platform. The utility model has the advantage of high working efficiency.

Description

Automatic punching production line for closed rail

Technical Field

The utility model relates to the technical field of elevator guide rail processing, in particular to an automatic punching production line for a closed rail.

Background

Elevator guide rails provide guidance for the car and counterweight when the elevator is in operation and are an important component in an elevator system. The closed rail is a type of elevator guide rail, the inside of the guide rail is of a hollow structure, two ends of the guide rail are open, and the closed rail has the advantages of being light in overall weight and convenient to install and transport. In the process of processing and manufacturing the closed rail, positioning notches which are convenient for the butt joint of the two closed rails are respectively processed at the two ends of the fixed arm of the closed rail. Due to the special nature of the closed rail structure, conventional punches cannot be adapted to punch the end of the closed rail. At present, the processing of the positioning notches at the two ends of the closed rail adopts a manual processing mode, and the defects of high labor intensity and low working efficiency of workers exist.

Disclosure of Invention

The utility model aims to provide an automatic punching production line for a closed rail, which can improve the working efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the closed rail automatic punching production line comprises a longitudinal conveyor and a stepping transverse conveyor, wherein the longitudinal conveyor is used for conveying elevator guide rails placed in a T shape to a turnover station, a guide rail turnover mechanism is arranged at the turnover station, the guide rail turnover mechanism is used for turning the elevator guide rails transferred to the turnover station by the longitudinal conveyor from the T shape to an inverted T shape and placing the inverted T shape on a guide rail buffer platform, two guide rail punching preset platforms and a transverse conveyor are sequentially arranged on the discharging side of the guide rail buffer platform along the guide rail advancing conveying direction, the stepping transverse conveyor can transfer the elevator guide rails on the guide rail buffer platform to each guide rail punching preset platform in an inverted T shape, and can transfer the elevator guide rails on each guide rail punching preset platform to the transverse conveyor in an inverted T shape; the structure of the punching unit comprises: the machine frame is provided with a die carrier, a lower die is fixed in the die carrier, the upper end face of the lower die is flush with a corresponding guide rail punching preset platform, an upper die is arranged above the lower die, the upper die can move downwards to be close to or upwards away from the lower die under the drive of a driving assembly, a groove into which a power supply elevator guide rail stretches is arranged on the side wall of the upper die, which is opposite to the corresponding guide rail punching preset platform, the lower end of the groove downwards extends to penetrate through the bottom face of the upper die, a punching block which downwards protrudes out of the bottom face of the upper die and is sleeved at the end part of the elevator guide rail, which stretches into the groove, is fixed on the inner wall of the groove, which is opposite to the corresponding guide rail punching preset platform, of the lower die, and a punching hole which upwards corresponds to the punching block and vertically penetrates through the lower die is arranged on the top face of the lower die.

Further, the aforementioned closed rail automatic punching production line, wherein: the structure of the material moving mechanism comprises: the pushing assembly and the pulling assembly are positioned on one side, far away from the corresponding punching unit, of the left side and the right side of the corresponding guide rail punching preset platform, and the structure of the pushing assembly comprises: the pushing device comprises a pushing bracket, wherein a pushing cylinder is fixed on the pushing bracket, a pushing block is arranged on a piston rod of the pushing cylinder, and when the piston rod of the pushing cylinder stretches out, an elevator guide rail placed on a corresponding guide rail punching preset platform can be pushed into a corresponding punching unit through the pushing block; the material pulling component is positioned at one side, close to the corresponding punching unit, of the left side and the right side of the corresponding guide rail punching preset platform, and the structure of the material pulling component comprises: the left-right moving guide rail set is provided with a sliding seat in a sliding manner, a first pneumatic finger cylinder with a pair of first clamping jaws is arranged on the sliding seat, the first pneumatic finger cylinder can drive the pair of first clamping jaws to clamp or loosen an elevator guide rail placed on a corresponding guide rail punching preset platform, a material pulling cylinder is fixed on one side of the guide rail set, a piston rod of the material pulling cylinder is fixed with the sliding seat, and the material pulling cylinder can drive the sliding seat and the first pneumatic finger cylinder to move along the guide rail set.

Further, the aforementioned closed rail automatic punching production line, wherein: the drive assembly includes: the stamping cylinder is vertically arranged on the die carrier, and a piston rod of the stamping cylinder is downwards connected and fixed with the upper die.

Further, the aforementioned closed rail automatic punching production line, wherein: the guide rail tilting mechanism includes: at least two upset units of arranging about, the structure of upset unit includes: the elevator comprises a fixed seat, wherein two bearing seats are arranged on the fixed seat, a turnover shaft is supported between the two bearing seats through a bearing, a turnover connecting seat is fixed on a shaft body of the turnover shaft, a second pneumatic finger cylinder with a pair of second clamping jaws is arranged on the turnover connecting seat, the second pneumatic finger cylinder can drive the pair of second clamping jaws to clamp or loosen an elevator guide rail transferred to a turnover station, one side shaft end of the turnover shaft extends out of the bearing seats and is sleeved with a gear, a sliding rail running forwards and backwards is arranged on the fixed seat right below the gear, a rack meshed with the gear is arranged on the sliding rail in a sliding manner, a turnover cylinder is fixed on the fixed seat on one side of the rack, and a piston rod of the turnover cylinder is connected with the rack through a connecting plate.

Further, the aforementioned closed rail automatic punching production line, wherein: the fixed seat is provided with a limiting support seat for limiting the position of the overturning connecting seat after the overturning connecting seat overturns to the side of the overturning station so as to ensure that a pair of second clamping jaws of the second pneumatic finger cylinder just can grab an elevator guide rail of the overturning station after the second pneumatic finger cylinder overturns along with the overturning axial overturning station together with the overturning connecting seat.

Further, the aforementioned closed rail automatic punching production line, wherein: a blanking drawer for collecting the waste falling from the punching holes is arranged below the lower die.

Through implementation of the technical scheme, the utility model has the beneficial effects that: the working efficiency is high, the labor intensity of workers is low, and continuous automatic punching of the closed elevator guide rail can be realized.

Drawings

Fig. 1 is a schematic structural view of a closed rail according to the background of the utility model.

Fig. 2 is a schematic structural view of an automatic punching production line for a closed rail according to the present utility model.

Fig. 3 is a schematic perspective view of fig. 2.

Fig. 4 is a schematic structural view of the turnover unit in the rail turnover mechanism.

Fig. 5 is a schematic perspective view of fig. 4.

Fig. 6 is a schematic structural view of the punching unit.

FIG. 7 is a schematic view of the structure of section A-A shown in FIG. 6.

Fig. 8 is a schematic perspective view of fig. 6.

Fig. 9 is a schematic structural view of the upper die.

Fig. 10 is a schematic perspective view of fig. 9.

Fig. 11 is a schematic view of the structure of the lower die.

Fig. 12 is a schematic structural diagram of a rail buffer platform.

Fig. 13 is a schematic structural view of a guide rail punching preset platform.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

As shown in fig. 2, 3, 6, 7, 8, 9, 10, 11, 12 and 13, the automatic closed rail punching production line comprises a longitudinal conveyor 1 and a stepping transverse conveyor 2, wherein the longitudinal conveyor 1 is used for conveying a T-shaped placed elevator guide rail 3 to a turning station, a guide rail turning mechanism is arranged at the turning station and is used for turning the T-shaped elevator guide rail 3 transferred to the turning station by the longitudinal conveyor 1 into an inverted T shape and placing the inverted T-shaped elevator guide rail 3 on a guide rail buffer platform 4, two guide rail punching preset platforms 5 and a transverse conveyor 6 are sequentially arranged on the discharging side of the guide rail buffer platform 4 along the forward conveying direction of the guide rail, the stepping transverse moving conveyor 2 can keep the inverted T shape of the elevator guide rail 3 on the guide rail buffer platform 4 to be transferred to each guide rail punching preset platform 5, and can keep the inverted T shape of the elevator guide rail 3 on each guide rail punching preset platform 5 to be transferred to the transverse conveyor 6, one side of each guide rail punching preset platform 5 is correspondingly provided with a punching unit 7 capable of carrying out end punching operation on the elevator guide rail 3, two different sides of the punching units 7, and a material transferring mechanism for pushing or pulling the elevator guide rail 3 transferred to the corresponding guide rail punching preset platform 5 into or out of the corresponding punching unit 7 is arranged at each guide rail punching preset platform 5; the structure of the punching unit 7 includes: the frame 71 is provided with die carrier 72 on the frame 71, is fixed with lower mould 73 in die carrier 72, and the up end of lower mould 73 flushes with corresponding guide rail preset platform 5 that punches a hole, is provided with upper mould 74 in the top of lower mould 73, and upper mould 74 can move down to be close to or move up away from lower mould 73 under the drive of drive assembly, and drive assembly includes: the stamping cylinder 79 is vertically arranged on the die carrier 72, and a piston rod of the stamping cylinder 79 is downwards connected and fixed with the upper die 74; a groove 75 into which the elevator guide rail 3 extends is formed in the side wall of the upper die 74 opposite to the corresponding guide rail punching preset platform 5, the lower end of the groove 75 extends downwards to penetrate through the bottom surface of the upper die 74, a punching block 76 protruding downwards from the bottom surface of the upper die 74 and sleeved by the end part of the elevator guide rail 3 extending into the groove 75 is fixed on the inner wall of the groove 75 opposite to the corresponding guide rail punching preset platform 5, a punching hole 77 corresponding to the punching block 76 upwards and penetrating through the lower die 73 is formed in the top surface of the lower die 73, and a blanking drawer 78 used for collecting waste falling from the punching hole 77 is arranged below the lower die 73;

in this embodiment, the structure of the material transferring mechanism includes: the pushing component 8 and the pulling component 9, the pushing component 8 is located at one side of the corresponding guide rail punching preset platform 5, which is far away from the corresponding punching unit 7, and the structure of the pushing component 8 comprises: the pushing device comprises a pushing support 81, wherein a pushing cylinder 82 is fixed on the pushing support 81, a pushing block 83 is arranged on a piston rod of the pushing cylinder 82, and when the piston rod of the pushing cylinder 82 stretches out, an elevator guide rail 3 placed on a corresponding guide rail punching preset platform 5 can be pushed into a corresponding punching unit 7 through the pushing block 83; the material pulling component 9 is located at one side, close to the corresponding punching unit 7, of the left side and the right side of the corresponding guide rail punching preset platform 5, and the structure of the material pulling component 9 comprises: the left-right guide rail set 91 is provided with a sliding seat 92 in a sliding manner on the guide rail set 91, a first pneumatic finger cylinder 94 with a pair of first clamping jaws 93 is arranged on the sliding seat 92, the first pneumatic finger cylinder 94 can drive the pair of first clamping jaws 93 to clamp or unclamp an elevator guide rail 3 placed on a corresponding guide rail punching preset platform 5, a material pulling cylinder 95 is fixed on one side of the guide rail set 91, a piston rod of the material pulling cylinder 95 is fixed with the sliding seat 92, the material pulling cylinder 95 can drive the sliding seat 92 and the first pneumatic finger cylinder 94 to move along the guide rail set 91, and the material pushing assembly 8 and the material pulling assembly 9 are simple in structure and convenient to install and maintain;

in this embodiment, as shown in fig. 4 and 5, the rail tilting mechanism includes: at least two flipping units 10 arranged left and right, in this embodiment, the number of flipping units 10 is two, and the two flipping units 10 are arranged left and right; the structure of the flipping unit 10 includes: the device comprises a fixed seat 101, wherein two bearing seats 102 are arranged on the fixed seat 101, a turnover shaft 103 is supported between the two bearing seats 102 through bearings, a turnover connecting seat 104 is fixed on the shaft body of the turnover shaft 103, a second pneumatic finger cylinder 106 with a pair of second clamping jaws 105 is arranged on the turnover connecting seat 104, the second pneumatic finger cylinder 106 can drive the pair of second clamping jaws 105 to clamp or loosen an elevator guide rail 3 transferred to a turnover station, one shaft end of the turnover shaft 103 extends out of the bearing seat 102 and is sleeved with a gear 107, a sliding rail 108 which runs forward and backward is arranged on the fixed seat 101 right below the gear 107, a rack 109 meshed with the gear 107 is arranged on the sliding rail 108 in a sliding manner, a turnover cylinder 110 is fixed on the fixed seat 101 at one side of the rack 109, a piston rod of the turnover cylinder 110 is connected with the rack 109 through a connecting plate 111, and the fixed seat 101 is provided with a position limiting device for limiting the turnover connecting seat 104 to the turnover station side, so as to ensure that the second pneumatic finger cylinder 106 and the turnover connecting seat 104 can directly grip the elevator guide rail 112 of the second pneumatic finger cylinder 106 after the turnover station is turned over by the turnover connecting seat 104 along with the turnover shaft 103;

the working principle of the utility model is as follows:

the longitudinal conveyor 1 continuously conveys the elevator guide rail 3 placed in a T shape to a turnover station, after the elevator guide rail reaches the turnover station, piston rods of turnover cylinders 110 of two turnover units 10 of the guide rail turnover mechanism retract simultaneously, when the piston rods of the turnover cylinders 110 retract, racks 109 are driven to move along sliding rails 108 through connecting plates 111, in the process that the racks 109 move along the sliding rails 108, the racks 109 can drive gears 107 to rotate towards the turnover station, and when the gears 107 rotate, the turnover shafts 103, the turnover connecting seats 104, the second pneumatic finger cylinders 106 and the second clamping jaws 105 are synchronously driven to rotate towards the turnover station until the turnover connecting seats 104 are supported on limit supporting seats 112, and at the moment, a pair of second clamping jaws 105 of the second pneumatic finger cylinders 106 can just grab the elevator guide rail 3 of the turnover station; then, the second pneumatic finger cylinders 106 of the two overturning units 10 in the guide rail overturning mechanism are actuated to drive the two pairs of second clamping jaws 105 to retract and grab the elevator guide rail 3 of the overturning station; then, the piston rods of the overturning cylinders 110 of the two overturning units 10 of the guide rail overturning mechanism extend simultaneously, when the piston rods of the overturning cylinders 110 extend, the rack 109 is driven to move reversely along the sliding rail 108 through the connecting plate 111, in the process that the rack 109 moves reversely along the sliding rail 108, the rack 109 drives the gear 107 to rotate towards the guide rail caching platform side, the overturning shaft 103, the overturning connecting seat 104, the second pneumatic finger cylinder 106, the second clamping jaw 105 and the elevator guide rail 3 grabbed by the second clamping jaw 105 are synchronously driven to rotate towards the guide rail caching platform side when the gear 107 rotates, until the grabbed elevator guide rail 3 is overturned by 180 degrees, the elevator guide rail 3 is overturned into an inverted T shape from the T shape, at the moment, the elevator guide rail 3 is just located right above the guide rail caching platform 4, and then, the second pneumatic finger cylinders 106 of the two overturning units 10 in the guide rail overturning mechanism act again, and the two pairs of second pneumatic finger cylinders 105 are driven to loosen the elevator guide rail 3, so that the elevator guide rail 3 can fall onto the guide rail caching platform 4 below;

then, the stepping and traversing conveyor 2 is enabled to transfer the elevator guide rail 3 on the guide rail buffer platform 4 to the first guide rail punching preset platform 5 along the guide rail conveying direction in an inverted-T shape, and at the moment, the guide rail overturning mechanism continuously overturns the elevator guide rail transferred to the overturning station by the longitudinal conveyor 1 from the T shape to the inverted-T shape and places the elevator guide rail on the guide rail buffer platform 4;

after the elevator guide rail is placed on the first guide rail punching preset platform 5 along the guide rail conveying direction in an inverted T shape, starting a pushing component 8 corresponding to the guide rail punching preset platform 5, enabling a piston rod of a pushing cylinder 82 in the pushing component 8 to extend out, pushing the elevator guide rail 3 placed on the guide rail punching preset platform 5 into a punching unit 7 on the right side through a pushing block 83 after the piston rod of the pushing cylinder 82 extends out until the right end part of the elevator guide rail 3 extends into a groove 75 of an upper die 74 and is sleeved into a punching block 76 on the inner wall of the groove 75, ensuring that the upper die 74 is further provided with a space for inserting the punching block 76 into the punching hole 77 at the moment, then enabling a piston rod of a punching cylinder 79 of the punching unit 7 to extend downwards, driving the upper die 74 to move downwards to be close to a lower die 73 until the punching block 76 is moved downwards into the punching hole 77 of the lower die 73, and accordingly finishing punching operation on the right end part of the elevator guide rail, and enabling punching waste to fall into a blanking drawer 78 below through the hole 77; then, the piston rod of the punching cylinder 79 is retracted upwards to reset, the upper die 74 is driven to move upwards to reset, then the first pneumatic finger cylinder 94 of the material pulling assembly 9 is driven to act, the pair of first clamping jaws 93 are driven to clamp the elevator guide rail 3 with the right end punched at the moment, then the piston rod of the material pulling cylinder 95 is extended, the sliding seat 92, the first pneumatic finger cylinder 94, the first clamping jaws 93 and the elevator guide rail 3 clamped by the first clamping jaws 93 are driven to move together in a direction away from the punching unit 7 until the elevator guide rail is pulled out of the punching unit 7, then the first pneumatic finger cylinder 94 of the material pulling assembly 9 is driven to act again, the pair of first clamping jaws 93 are driven to loosen the elevator guide rail 3, then the piston rod of the material pulling cylinder 95 is driven to retract, and the sliding seat 92, the first pneumatic finger cylinder 94 and the first clamping jaws 93 are driven to reset together to wait for the next material pulling;

then the stepping transverse moving conveyor 2 transfers the elevator guide rail with the right end punched hole on the first guide rail punching preset platform 5 to the second guide rail punching preset platform 5 along the guide rail conveying direction in a reversed-T shape, and transfers the next elevator guide rail 3 on the guide rail buffer platform 4 to the first guide rail punching preset platform 5 along the guide rail conveying direction in a reversed-T shape continuously for right end punching operation;

after the elevator guide rail is placed on a second guide rail punching preset platform 5 along the guide rail conveying direction in an inverted T shape, starting a pushing component 8 corresponding to the guide rail punching preset platform 5, enabling a piston rod of a pushing cylinder 82 in the pushing component 8 to extend out, pushing an elevator guide rail 3 placed on the guide rail punching preset platform 5 into a left punching unit 7 through a pushing block 83 after the piston rod of the pushing cylinder 82 extends out until the left end part of the elevator guide rail 3 extends into a groove 75 of an upper die 74 and is sleeved into a punching block 76 on the inner wall of the groove 75, ensuring that the upper die 74 is further provided with a space for inserting the punching block 76 into the punching hole 77 at the moment, then enabling a piston rod of a punching cylinder 79 of the punching unit 7 to extend downwards, driving the upper die 74 to move downwards to be close to a lower die 73, and enabling punching waste to fall into a blanking drawer 78 below through the punching hole 77 after the punching operation of the left end part of the elevator guide rail is completed; then the piston rod of the punching cylinder 79 is retracted upwards to reset, the upper die 74 is driven to move upwards to reset, then the first pneumatic finger cylinder 94 of the material pulling assembly 9 is driven to act, the pair of first clamping jaws 93 are driven to clamp the elevator guide rail 3 with the left and right end punching operation completed at the moment, then the piston rod of the material pulling cylinder 95 is extended, the sliding seat 92, the first pneumatic finger cylinder 94, the first clamping jaw 93 and the elevator guide rail 3 clamped by the first clamping jaw 93 are driven to move together in a direction away from the punching unit 7 until the elevator guide rail is pulled out of the punching unit 7, then the first pneumatic finger cylinder 94 of the material pulling assembly 9 is driven to act again, the pair of first clamping jaws 93 are driven to loosen the elevator guide rail 3, then the piston rod of the material pulling cylinder 95 is driven to retract, and the sliding seat 92, the first pneumatic finger cylinder 94 and the first clamping jaw 93 are driven to reset together, and the next material pulling is waited for;

then the stepping transverse moving conveyor 2 moves the elevator guide rails with the left and right ends punched on the second guide rail punching preset platform 5 to the transverse conveyor 6 in an inverted T shape, and the elevator guide rails are output to the subsequent working procedure by the transverse conveyor 6; meanwhile, the stepping transverse moving conveyor 2 keeps the next elevator guide rail which completes the right end punching on the first guide rail punching preset platform 5 in an inverted T shape, continuously moves to the second guide rail punching preset platform 5 along the guide rail conveying direction to conduct left end punching operation, and keeps the next elevator guide rail 3 on the guide rail buffer platform 4 in an inverted T shape, continuously moves to the first guide rail punching preset platform 5 along the guide rail conveying direction to conduct right end punching operation;

through the operation, continuous automatic punching of the closed elevator guide rail is realized.

The utility model has the advantages that: the working efficiency is high, the labor intensity of workers is low, and continuous automatic punching of the closed elevator guide rail can be realized.

The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the present utility model in any other way, but any modifications or equivalent variations according to the technical spirit of the present utility model are still included in the scope of the present utility model.

Claims (6)

1. Automatic production line that punches a hole of sealed rail, its characterized in that: the elevator guide rail conveying device comprises a longitudinal conveyor and a stepping transverse conveyor, wherein the longitudinal conveyor is used for conveying elevator guide rails placed in a T shape to a turnover station, a guide rail turnover mechanism is arranged at the turnover station, the guide rail turnover mechanism is used for turning the elevator guide rails transferred to the turnover station through the longitudinal conveyor from the T shape to be inverted T-shaped and placing the inverted T-shaped elevator guide rails on a guide rail buffer platform, two guide rail punching preset platforms and a transverse conveyor are sequentially arranged on the discharging side of the guide rail buffer platform along the guide rail advancing conveying direction, the stepping transverse conveyor can transfer the elevator guide rails on the guide rail buffer platform to each guide rail punching preset platform in an inverted T shape and can transfer the elevator guide rails on each guide rail punching preset platform to the transverse conveyor in an inverted T shape, a punching unit capable of conducting end punching operation on the elevator guide rails is correspondingly arranged on one side of each guide rail punching preset platform, and a material transferring mechanism used for pushing or pulling the elevator guide rails transferred to the corresponding guide rail preset platform into or out of the corresponding punching units is arranged on the different sides of each guide rail preset platform; the structure of the punching unit comprises: the machine frame is provided with a die carrier, a lower die is fixed in the die carrier, the upper end face of the lower die is flush with a corresponding guide rail punching preset platform, an upper die is arranged above the lower die, the upper die can move downwards to be close to or upwards away from the lower die under the drive of a driving assembly, a groove into which a power supply elevator guide rail stretches is arranged on the side wall of the upper die, which is opposite to the corresponding guide rail punching preset platform, the lower end of the groove downwards extends to penetrate through the bottom face of the upper die, a punching block which downwards protrudes out of the bottom face of the upper die and is sleeved at the end part of the elevator guide rail, which stretches into the groove, is fixed on the inner wall of the groove, which is opposite to the corresponding guide rail punching preset platform, of the lower die, and a punching hole which upwards corresponds to the punching block and vertically penetrates through the lower die is arranged on the top face of the lower die.

2. The closed rail automatic punching production line according to claim 1, characterized in that: the structure of the material moving mechanism comprises: the pushing assembly and the pulling assembly are positioned on one side, far away from the corresponding punching unit, of the left side and the right side of the corresponding guide rail punching preset platform, and the structure of the pushing assembly comprises: the pushing device comprises a pushing bracket, wherein a pushing cylinder is fixed on the pushing bracket, a pushing block is arranged on a piston rod of the pushing cylinder, and when the piston rod of the pushing cylinder stretches out, an elevator guide rail placed on a corresponding guide rail punching preset platform can be pushed into a corresponding punching unit through the pushing block; the material pulling component is positioned at one side, close to the corresponding punching unit, of the left side and the right side of the corresponding guide rail punching preset platform, and the structure of the material pulling component comprises: the left-right moving guide rail set is provided with a sliding seat in a sliding manner, a first pneumatic finger cylinder with a pair of first clamping jaws is arranged on the sliding seat, the first pneumatic finger cylinder can drive the pair of first clamping jaws to clamp or loosen an elevator guide rail placed on a corresponding guide rail punching preset platform, a material pulling cylinder is fixed on one side of the guide rail set, a piston rod of the material pulling cylinder is fixed with the sliding seat, and the material pulling cylinder can drive the sliding seat and the first pneumatic finger cylinder to move along the guide rail set.

3. The closed rail automatic punching production line according to claim 1, characterized in that: the drive assembly includes: the stamping cylinder is vertically arranged on the die carrier, and a piston rod of the stamping cylinder is downwards connected and fixed with the upper die.

4. The closed rail automatic punching production line according to claim 1, characterized in that: the guide rail tilting mechanism includes: at least two upset units of arranging about, the structure of upset unit includes: the elevator comprises a fixed seat, wherein two bearing seats are arranged on the fixed seat, a turnover shaft is supported between the two bearing seats through a bearing, a turnover connecting seat is fixed on a shaft body of the turnover shaft, a second pneumatic finger cylinder with a pair of second clamping jaws is arranged on the turnover connecting seat, the second pneumatic finger cylinder can drive the pair of second clamping jaws to clamp or loosen an elevator guide rail transferred to a turnover station, one side shaft end of the turnover shaft extends out of the bearing seats and is sleeved with a gear, a sliding rail running forwards and backwards is arranged on the fixed seat right below the gear, a rack meshed with the gear is arranged on the sliding rail in a sliding manner, a turnover cylinder is fixed on the fixed seat on one side of the rack, and a piston rod of the turnover cylinder is connected with the rack through a connecting plate.

5. The closed rail automatic punching production line according to claim 4, characterized in that: the fixed seat is provided with a limiting support seat for limiting the position of the overturning connecting seat after the overturning connecting seat overturns to the side of the overturning station so as to ensure that a pair of second clamping jaws of the second pneumatic finger cylinder just can grab an elevator guide rail of the overturning station after the second pneumatic finger cylinder overturns along with the overturning axial overturning station together with the overturning connecting seat.

6. The closed rail automatic punching production line according to claim 1, characterized in that: a blanking drawer for collecting the waste falling from the punching holes is arranged below the lower die.