CN210475040U

CN210475040U - Plate rolling and discharging machine

Info

Publication number: CN210475040U
Application number: CN201921129491.4U
Authority: CN
Inventors: 叶文慧; 张正国; 李伟; 张宇秋; 杨旭静; 姜潮; 李茂君; 韦凯
Original assignee: Jiangsu Schurholz Precision Metal Forming Co ltd
Current assignee: Jiangsu Schurholz Precision Metal Forming Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-08
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a coiled plate blanking machine in the technical field of automobile oil tank accessory processing equipment, which comprises a base, wherein the upper side of the base is provided with a transmission case, the transmission case is rotatably connected with a rotating shaft, the rotating shaft extending forwards outside the transmission case is connected with a rear connecting plate by screw threads, the left and right ends of the rear connecting plate are respectively hinged with a rear hinge rod capable of swinging left and right, the end of the rear hinge rod extending forwards is hinged with a front hinge rod, the hinged part of the rear hinge rod and the front hinge rod is also hinged with a clamping claw, the rotating shaft in front of the rear connecting plate is connected with a front connecting plate by screw threads, the two ends of the front hinge rod extending forwards are respectively hinged at the left and right ends of the front connecting plate, at least two connecting holes are distributed on the front connecting plate, a locking mechanism for limiting the rotation of the rear connecting plate is arranged in, the front connecting disc moves backwards along the rotating shaft; the utility model discloses compact structure is simple.

Description

Plate rolling and discharging machine

Technical Field

The utility model belongs to the technical field of the car oil tank accessory processing equipment, in particular to roll up board blanking machine.

Background

A precision stamping part applied to an automobile chassis system is mainly a precision chuck for locking and sealing an automobile chassis mailbox, in the prior art, a rolling plate is frequently used as a raw material for producing a chuck, when the chuck is machined, a rolling plate blanking machine is required for feeding, the structure of the rolling plate blanking machine is specifically that the precision stamping part comprises a transmission case, a rotatable rotating shaft is connected onto the transmission case, a tensioning mechanism for tensioning an inner ring of the rolling plate is connected onto the rotating shaft extending out of the transmission case, the tensioning mechanism comprises a chuck connected onto the rotating shaft, at least two slide rails radially arranged are arranged on the disc surface of the chuck, slide plates capable of moving along the slide rails are arranged on the slide rails, a positioning plate for tensioning a workpiece is arranged on each slide plate, a driving mechanism for driving each slide plate corresponds to one driving mechanism, the slide plates are driven to move outwards by the driving mechanisms, and the slide plates drive the positioning plates to open, the inner ring of the rolled plate is tensioned, wherein all driving mechanisms need to move synchronously, otherwise, stress among different positioning plates is uneven, the rolled plate is eccentric relative to a rotating shaft, the rolled plate feeding is unstable, and in addition, the structure of the rolled plate feeding is complex and the cost is high.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model discloses an overcome the weak point among the above-mentioned prior art, provide a roll board blanking machine, solved the technical problem that the structure is complicated among the prior art, this structural construction is simple relatively, and is with low costs, and synchronous motion is to all jack catchs, and the pay-off is stable.

The purpose of the utility model is realized like this: a coiled plate blanking machine comprises a base, wherein a transmission case is arranged on the upper side of the base, a rotating shaft is rotatably connected onto the transmission case and extends forwards, a rear connecting disc is connected onto the rotating shaft outside the transmission case in a threaded manner, the left end and the right end of the rear connecting disc are respectively hinged with a rear hinge rod capable of swinging left and right, one end of the rear hinge rod extending forwards is hinged with a front hinge rod, the hinge joint of the rear hinge rod and the front hinge rod is hinged with a clamping jaw, a front connecting disc is connected onto the rotating shaft in front of the rear connecting disc in a threaded manner, the sections of the rotating shafts connected by the front connecting disc and the rear connecting disc are opposite in spiral direction, one ends of the two front hinge rods extending forwards are respectively hinged at the left end and the right end of the front connecting disc, at least two connecting holes convenient to be connected with the rotating, when the locking mechanism locks the rear connecting disc, the rotating shaft rotates, the rear connecting disc moves forwards along the rotating shaft, and the front connecting disc moves backwards along the rotating shaft.

In the utility model, when the locking mechanism locks the rear connecting disc, the rear connecting disc can not rotate, and when the locking mechanism does not lock the rear connecting disc, the rear connecting disc can rotate; the rotating shaft rotates, the rear connecting disc moves along the rotating shaft under the action of the locking mechanism, the rear connecting disc and the front connecting disc move in opposite directions, the clamping jaws open outwards, and the rolling plate is clamped by the clamping jaws; when the locking mechanism loosens the rear connecting disc, the rotating shaft rotates reversely, the rear connecting disc rotates along with the rotation of the rotating shaft, and the coiled plate feeds materials; the utility model can realize the opening of the jack catch and the synchronous rotation of the jack catch and the rotating shaft, and has compact and simple structure; can be applied to the work of plate rolling and blanking.

In order to further realize the movement and the rotation of the rear connecting disc, the locking mechanism comprises a connecting shaft, two ends of the connecting shaft in the length direction are respectively connected with a locking assembly for limiting the rotation of the rear connecting disc, the locking assembly comprises an inner ring and a rotatable outer ring, a supporting groove is formed in the outer ring, the outer edge of the inner ring extends into the supporting groove, a plurality of mounting grooves are distributed in the inner ring, the mounting grooves extend towards the direction of the supporting groove, one end of a reset spring is connected to the inner ring at the end, far away from the supporting groove, of the mounting groove, the other end of the reset spring is fixedly connected with a reset ball, a plurality of locking grooves are distributed in the outer ring, each locking groove comprises a locking groove I and a locking groove II, one end of one locking groove I is connected with one end of the locking groove II, the other end of the locking groove II is connected with the other end of the other locking, when the reset ball is in the locking groove II, the reset spring is in a natural state; one locking assembly extends into the rotating shaft, the other locking assembly is connected with the fixed seat, an outer ring in the other locking assembly is rotatably connected to the fixed seat, the two outer rings are respectively and fixedly connected with the connecting shaft, and the connecting shaft extending into the rotating shaft is fixedly connected with the rear connecting disc; when the two outer rings rotate, the rotating directions of the two outer rings are the same; in the design, in the same locking groove, the first locking groove of the inner ring can rotate towards the second locking groove, but the second locking groove cannot rotate towards the first locking groove due to the limitation of the second locking groove and the reset ball; when the clamping jaws are required to be opened, the rotating direction of the rotating shaft is controlled, so that the rotating shaft rotates from the second locking groove to the first locking groove, the outer ring cannot rotate, the connecting shaft cannot rotate under the action of the outer ring, the rear connecting disc cannot rotate under the action of the connecting shaft, the rotating shaft drives the rear connecting disc to move, and the rear connecting disc and the front connecting disc relatively move; when the clamping jaws and the rotating shaft are required to rotate synchronously, the rotating shaft rotates reversely, the outer ring rotates relative to the inner ring, the rear connecting disc rotates under the action of the rotating shaft and the outer ring, the front connecting disc and the rear connecting disc drive the clamping jaws to rotate, the clamping jaws drive the rolling plates to rotate, and the rolling plate blanking is realized.

In order to further improve the reliability of forward movement of the rear connecting disc, a sliding groove is formed in the rotating shaft extending out of the transmission case forwards, at least two fastening holes are distributed in the connecting shaft, two connecting pieces penetrate through the two fastening holes respectively to be connected with the rotating shaft, the connecting pieces extending out of the rotating shaft are fixedly connected with the rear connecting disc, and the connecting pieces can slide along the sliding groove.

In order to further realize the loosening of the clamping jaws after tensioning, a fixed seat is arranged on the upper side of the base behind the transmission case, one end of the rotating shaft which extends backwards out of the transmission case is rotatably connected on the fixed seat, a limit linear driver is fixedly connected on the upper side of the fixed seat, the limiting linear driver is connected with an active push rod capable of reciprocating in the front-rear direction, the active push rod extending out of the limiting linear driver is fixedly connected with a fixed plate, the left and right ends of the active push rod facing outwards are respectively connected with a guide rod, the fixed plate is fixedly connected with the guide rods, the end part of the active push rod extending outwards is slidably connected with a limiting sleeve used for limiting the rotation of the inner ring, the limiting sleeve is connected with the inner ring, a plurality of connecting grooves are arranged on the limiting sleeve, and a connecting hole convenient for being connected with the active push rod is formed in the limiting sleeve on the inwards side of the connecting grooves; the outer ring of the other locking assembly is provided with rotation stopping holes corresponding to the positions of the axes of the two guide rods, and the two guide rods can respectively extend into the two rotation stopping holes; in the design, the limiting sleeve normally extends into the inner ring under normal state, so that the inner ring cannot rotate, and the two guide rods are arranged outside the outer ring; when the clamping jaw needs to be loosened, the limiting linear driver acts to enable the driving push rod to retract backwards, the limiting sleeve is far away from the locking assembly, the limiting linear driver stops acting, the limiting sleeve is sleeved on the driving push rod, the position of the limiting sleeve is adjusted, the outward end of the limiting sleeve is flush with the outward end of the guide rod, fastening screws are used for sequentially penetrating through the connecting grooves and the connecting holes to fixedly connect the limiting sleeve and the driving push rod together, the limiting linear driver reversely acts, the driving push rod does not extend outwards, the limiting sleeve extends into the rotation stopping holes of the inner ring, the two guide rods respectively just extend into the rotation stopping holes, the outer ring and the connecting shaft cannot rotate, the rotating shaft reversely rotates, the rear connecting disc and the front connecting disc move back to back, and the clamping jaw contracts.

In order to further realize the rotation of the rotating shaft, a driving motor is fixedly connected in the transmission case, a driving shaft is connected onto the driving motor, a first belt wheel is connected onto the driving shaft extending out of the transmission case, a second belt wheel is connected onto the rotating shaft extending backwards out of the transmission case, and the second belt wheel is in transmission connection with the second belt wheel through a belt.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a first perspective view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a view from a-a direction in the present invention.

Fig. 5 is a partially enlarged view of B in fig. 4.

Fig. 6 is a three-dimensional structure diagram of the utility model when the claw needs to be loosened.

Fig. 7 is a perspective view of the present invention in a normal state.

Fig. 8 is a partial enlarged view at C in fig. 6.

Fig. 9 is a partial enlarged view of fig. 7 at D.

Fig. 10 is a second perspective view of the present invention.

Fig. 11 is a partial enlarged view at E in fig. 10.

Fig. 12 is a perspective view of the locking mechanism of the present invention.

Fig. 13 is a partial enlarged view of fig. 3 at F.

Fig. 14 is a perspective view of the locking assembly of the present invention.

The automatic transmission device comprises a base 1, a front connecting disc 2, a claw 3, a transmission case 4, a rotating shaft 5, a rear connecting disc 6, a fixed seat 7, a limit linear driver 8, a driving motor 9, a guide rod 10, a driving push rod 11, a locking assembly 12, a reset spring 1201, a mounting groove 1202, a 1203 locking groove 1203, a 1203a locking groove II, a 1203b locking groove I, a reset ball 1204, an outer ring 1205, an inner ring 1206, a 1207 rotation stopping hole 1208 limiting hole, a driving shaft 13, a belt wheel I14, a belt 15, a belt wheel II 16, a 17 connecting groove, an 18 connecting hole, a 19 limiting sleeve, a 20 fixing plate, a front fastening hole 21, a rear fastening rod 22, a connecting shaft 23, a 24 sliding groove 25, a 26 connecting piece, a 27 mounting hole, a 28 fastening bolt and a 29 fastening.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The coiled plate blanking machine shown in fig. 1 to 14 comprises a base 1, wherein a transmission case 4 is arranged on the upper side of the base 1, a rotating shaft 5 is rotatably connected to the transmission case 4, and the structure for realizing the rotation of the rotating shaft 5 is specifically that a driving motor 9 is fixedly connected in the transmission case 4, a driving shaft 13 is connected to the driving motor 9, a first belt wheel 14 is connected to the driving shaft 13 extending out of the transmission case 4, a second belt wheel 16 is connected to the rotating shaft 5 extending backwards out of the transmission case 4, and the first belt wheel 14 is in transmission connection with the second belt wheel 16 through a belt 15; a rear connecting disc 6 is connected with the rotating shaft 5 which extends forwards outside the transmission case 4 in a threaded manner, rear hinged rods 22 capable of swinging left and right are respectively hinged at the left end and the right end of the rear connecting disc 6, a front hinged rod 21 is hinged at one end of the rear hinged rod 22 which extends forwards, a jaw 3 is hinged at the hinged position of the rear hinged rod 22 and the front hinged rod 21, the jaw 3 can be tightly attached to the inner edge of a rolling plate, a front connecting disc 2 is connected with the rotating shaft 5 in a threaded manner in front of the rear connecting disc 6, the section of the rotating shaft 5 connected with the front connecting disc 2 and the rear connecting disc 6 is in an opposite spiral direction, the spiral direction of the corresponding section of the rotating shaft 5 is in a left-handed manner, one ends of the two front hinged rods 21 which extend forwards are respectively hinged at the left end and the right end of the front connecting disc 2, at least two connecting holes 18 which are conveniently connected with the rotating shaft 5 are distributed on, when the locking mechanism locks the rear connecting disc 6, the rotating shaft 5 rotates, the rear connecting disc 6 moves forward along the rotating shaft 5, and the front connecting disc 2 moves backward along the rotating shaft 5.

In order to further realize the movement and rotation of the rear connecting disc 6, the locking mechanism comprises a connecting shaft 23, two ends of the connecting shaft 23 in the length direction are respectively connected with a locking assembly 12 for limiting the rotation of the rear connecting disc 6, the locking assembly 12 comprises an inner ring 1206 and a rotatable outer ring 1205, a supporting groove is formed on the outer ring 1205, the outer edge of the inner ring 1206 extends into the supporting groove, a plurality of mounting grooves 1202 are distributed on the inner ring 1206, the mounting grooves 1202 extend towards the direction of the supporting groove, one end of a return spring 1201 is connected on the inner ring 1206 at the end of the mounting groove 1202 far away from the supporting groove, a return ball 1204 is fixedly connected at the other end of the return spring 1201, a plurality of locking grooves 1203 are distributed on the outer ring 1205, the locking grooves 1203 comprise a locking groove first 1203b and a locking groove second 1203a, one end of one locking groove 1203b is connected with one end of the locking groove second 1203a, the other end of the locking groove second groove 1203a, the other end of the other locking groove 1203b extends into the mounting groove 1202, the outer edge of the reset ball 1204 is attached to the locking groove 1203a when the reset spring 1201 is in an unstressed state, the locking groove 1203b can rotate along the outer edge of the reset ball 1204, in the same locking groove 1203, the locking groove 1203b can rotate towards the direction of the locking groove 1203a, and when the reset ball 1204 is in the locking groove 1203a, the reset spring 1201 is in a natural state; one locking component 12 extends into the rotating shaft 5, the other locking component 12 is connected with the fixed seat 7, an outer ring 1205 in the other locking component 12 is rotatably connected to the fixed seat 7, the two outer rings 1205 are respectively and fixedly connected with the connecting shaft 23, and the connecting shaft 23 extending into the rotating shaft 5 is fixedly connected with the rear connecting disc 6; when the two outer rings 1205 rotate, the rotation directions of the two outer rings 1205 are the same.

In order to further improve the reliability of the forward movement of the rear connecting disc 6, a sliding groove 25 is formed in the rotating shaft 5 which extends forwards out of the transmission case 4, two fastening holes 24 are arranged in the connecting shaft 23, two connecting pieces 26 respectively penetrate through the two fastening holes 24 to be connected with the rotating shaft 5, the connecting pieces 26 can slide along the sliding groove 25, the connecting pieces 26 which extend out of the rotating shaft 5 are fixedly connected with the rear connecting disc 6, and the structure for fixedly connecting the connecting pieces 26 with the rear connecting disc 6 is specifically that two screw holes are arranged in the rear connecting disc 6, the connecting pieces 26 are connected with the rear connecting disc 6 through the connecting pieces 26 and screw rods by using fastening bolts 28, the fastening bolts 28 are locked by using fastening nuts 29, and mounting holes 27 for the fastening bolts 28 to penetrate through are formed in the transmission case 4.

In order to further realize the loosening of the clamping jaw 3 after tensioning, a fixed seat 7 is arranged on the upper side of the base 1 behind the transmission case 4, one end of a rotating shaft 5 which extends out of the transmission case 4 backwards is rotatably connected to the fixed seat 7, a limiting linear driver 8 is fixedly connected to the upper side of the fixed seat 7, an active push rod 11 which can reciprocate in the front-back direction is connected to the limiting linear driver 8, a fixed plate 20 is fixedly connected to the active push rod 11 which extends out of the limiting linear driver 8, a guide rod 10 is respectively connected to the limiting linear drivers 8 which are outward at the left end and the right end of the active push rod 11, the fixed plate 20 is fixedly connected with the guide rod 10, a limiting sleeve 19 which is used for limiting the rotation of the inner ring 1206 is slidably connected to the end portion of the active push rod 11, the limiting sleeve 19 is connected with the inner ring 1206, a plurality of connecting grooves 17 are distributed on the limiting sleeve 19, and connecting holes 18 which are; the outer ring 1205 of the other locking assembly 12 is provided with rotation stopping holes 1207 corresponding to the positions of the axes of the two guide rods 10, the two guide rods 10 can respectively extend into the two rotation stopping holes 1207, the inner ring 1206 is provided with limiting holes 1208, the limiting sleeve 19 can just extend into the limiting holes 1208, and when the limiting sleeve 19 extends into the limiting holes 1208, the inner ring 1206 cannot rotate.

In the utility model, when the locking mechanism locks the rear connecting disc 6, the rear connecting disc 6 can not rotate, when the locking mechanism does not lock the rear connecting disc 6, the rear connecting disc 6 can rotate, in a normal state, the limiting sleeve 19 usually extends into the inner ring 1206, so that the inner ring 1206 can not rotate, and the two guide rods 10 are both outside the outer ring 1205; the limit linear actuator 8 is preferably a cylinder; in the same locking groove 1203, the first locking groove 1203b of the inner ring 1206 can rotate towards the second locking groove 1203a, but due to the limitation of the second locking groove 1203a and the reset ball 1204, the second locking groove 1203a cannot rotate towards the first locking groove 1203 b; when the jaws 3 need to be opened, the driving motor 9 acts, the driving shaft 13 of the driving motor 9 rotates, the driving shaft 13 drives the first belt wheel 14 to rotate, the first belt wheel 14 drives the second belt wheel 16 to rotate through the belt 15, the second belt wheel 16 rotates to drive the rotating shaft 5 to rotate, the action direction of the driving motor 9 is controlled, the rotating shaft 5 rotates from the locking groove 1203a to the direction of the locking groove 1203b, the outer ring 1205 cannot rotate, the connecting shaft 23 cannot rotate under the action of the outer ring 1205, the rear connecting disc 6 cannot rotate under the action of the connecting shaft 23, the rotating shaft 5 drives the rear connecting disc 6 to move, and the rear connecting disc 6 and the front connecting disc 2 move relatively; when the clamping jaws 3 are completely opened to clamp the inner edge of the rolled plate, the driving motor 9 stops acting for 1s, the driving motor 9 reversely acts, the rotating shaft 5 drives the rear connecting disc 6 to rotate, the rear connecting disc 6 drives the connecting shaft 23 to rotate, the outer ring 1205 rotates relative to the inner ring 1206, and when the outer ring 1205 rotates, the return spring 1201 is compressed to realize blanking of the rolled plate; after the coiled plate is blanked, the clamping jaw 3 needs to be contracted, the limiting linear driver 8 acts to enable the active push rod 11 to retract backwards, the limiting sleeve 19 is far away from the locking assembly 12, the limiting linear driver 8 stops acting, the limiting sleeve 19 is sleeved on the active push rod 11, the position of the limiting sleeve 19 on the active push rod 11 is adjusted to enable the outward end of the limiting sleeve 19 to be flush with the outward end of the guide rod 10, a fastening screw sequentially penetrates through the connecting groove 17 and the connecting hole 18 to fixedly connect the limiting sleeve 19 and the active push rod 11 together, the limiting linear driver 8 acts in a reverse direction, the active push rod 11 continuously extends outwards, the limiting sleeve 19 extends into the rotation stopping hole 1207 of the 1206 inner ring, the two guide rods 10 respectively just extend into the rotation stopping hole 1207 to enable the outer ring 1205 and the connecting shaft 23 to be incapable of rotating, the rotating shaft 5 rotates in a reverse direction, the rear connecting disc 6 moves away from the front connecting disc 2, the jaw 3 contracts; the utility model can realize the opening of the clamping jaw 3, the synchronous rotation of the clamping jaw 3 and the rotating shaft 5, and the contraction of the clamping jaw 3, and has compact and simple structure; can be applied to the work of plate rolling and blanking.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims

1. The utility model provides a roll up board blanking machine, includes the base, the base upside is equipped with the transmission case, rotationally be connected with axis of rotation, its characterized in that on the transmission case: a rear connecting disc is connected with the rotating shaft which extends forwards outside the transmission case in a threaded manner, the left end and the right end of the rear connecting disc are respectively hinged with a rear hinged rod capable of swinging left and right, the end of the rear hinged rod extending forwards is hinged with a front hinged rod, the hinged part of the rear hinged rod and the front hinged rod is also hinged with a clamping jaw, the rotating shaft in front of the rear connecting disc is connected with a front connecting disc in a threaded manner, the spiral directions of sections of the rotating shafts connected with the front connecting disc and the rear connecting disc are opposite, and the ends of the two front hinged rods extending forwards are respectively hinged with the left end and the, at least two connecting holes convenient to be connected with the rotating shaft are distributed on the front connecting disc, a locking mechanism used for limiting the rotation of the rear connecting disc is arranged in the rotating shaft, when the locking mechanism locks the rear connecting disc, the rotating shaft rotates, the rear connecting disc moves forwards along the rotating shaft, and the front connecting disc moves backwards along the rotating shaft.

2. A roll bending blanking machine as claimed in claim 1, wherein: the locking mechanism comprises a connecting shaft, two ends of the connecting shaft in the length direction are respectively connected with a locking assembly for limiting the rotation of the rear connecting disc, the locking assembly comprises an inner ring and a rotatable outer ring, a supporting groove is formed in the outer ring, the outer edge of the inner ring extends into the supporting groove, a plurality of mounting grooves are distributed in the inner ring and extend towards the direction of the supporting groove, one end of a return spring is connected to the inner ring at the end, away from the supporting groove, of each mounting groove, the other end of the return spring is fixedly connected with a return ball, a plurality of locking grooves are distributed in the outer ring, each locking groove comprises a locking groove I and a locking groove II, in every two adjacent locking grooves, one end of one locking groove I is connected with one end of the locking groove II, the other end of the locking groove II is connected with the other end of the other locking groove I, the other end of the other locking, the outer edge of the reset ball is attached to the second locking groove, the first locking groove can rotate along the outer edge of the reset ball, the first locking groove can rotate towards the second locking groove in the same locking groove, and when the reset ball is in the second locking groove, the reset spring is in a natural state; one locking assembly extends into the rotating shaft, the other locking assembly is connected with the fixed seat, an outer ring in the other locking assembly is rotatably connected to the fixed seat, the two outer rings are respectively and fixedly connected with the connecting shaft, and the connecting shaft extending into the rotating shaft is fixedly connected with the rear connecting disc; when the two outer rings rotate, the rotating directions of the two outer rings are the same.

3. A roll bending blanking machine as claimed in claim 2, wherein: a sliding groove is formed in the rotating shaft extending out of the transmission case forwards, at least two fastening holes are distributed in the connecting shaft, two connecting pieces penetrate through the two fastening holes respectively to be connected with the rotating shaft, the connecting pieces extending out of the rotating shaft are fixedly connected with the rear connecting disc, and the connecting pieces can slide along the sliding groove.

4. A roll bending blanking machine as claimed in claim 2, wherein: the upper side of the base behind the transmission case is provided with a fixed seat, one end of a rotating shaft which extends out of the transmission case backwards is rotatably connected to the fixed seat, the upper side of the fixed seat is fixedly connected with a limiting linear driver, the limiting linear driver is connected with an active push rod which can reciprocate in the front-rear direction, the active push rod which extends out of the limiting linear driver is fixedly connected with a fixed plate, the limiting linear drivers of which the left and right ends face outwards are respectively connected with a guide rod, the fixed plate is fixedly connected with the guide rods, the end part of the active push rod which extends out outwards is slidably connected with a limiting sleeve used for limiting the rotation of the inner ring, the limiting sleeve is connected with the inner ring, a plurality of connecting grooves are distributed in the limiting sleeve, and the limiting sleeve on the inwards side; the outer ring of the other locking component is provided with rotation stopping holes corresponding to the positions of the axes of the two guide rods, and the two guide rods can respectively extend into the two rotation stopping holes.

5. A rolling plate blanking machine according to any one of claims 1 to 4, characterized in that: the transmission case is internally and fixedly connected with a driving motor, the driving motor is connected with a driving shaft, the driving shaft extending out of the transmission case is connected with a first belt wheel, a rotating shaft extending out of the transmission case backwards is connected with a second belt wheel, and the second belt wheel is in transmission connection with the second belt wheel through a belt.