CN114433667A

CN114433667A - Modular rear material blocking structure of pure electric bending machine

Info

Publication number: CN114433667A
Application number: CN202210121522.1A
Authority: CN
Inventors: 胡忠华
Original assignee: Anhui Liangzhi Cnc Machine Tool Manufacturing Co ltd
Current assignee: Anhui Liangzhi Cnc Machine Tool Manufacturing Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-05-06

Abstract

The invention discloses a modular rear material blocking structure of a pure electric bending machine, relates to the technical field of bending machines, and has the advantage that the rear material blocking position can be adjusted, and the technical scheme is as follows: include the base of being connected with the bender frame, can dismantle on the base and be connected with the bottom plate, it is connected with the slide to slide on the bottom plate, be equipped with the first driving piece that the drive slide removed to being close to or keeping away from the bender direction on the bottom plate, be equipped with the elevating platform that slides along vertical direction on the slide, the elevating platform is connected with the fender fingerboard through the connecting piece, be equipped with the second driving piece of vertical removal about the drive elevating platform on the slide, the elevating platform passes through the connecting piece and adjusts the distance between fender fingerboard and the elevating platform, and the elevating platform moving direction is the R axle this moment, and the slide moving direction is the X axle, and the R axle is along with X axle seesaw, R axle lift independent operation.

Description

Modular rear material blocking structure of pure electric bending machine

Technical Field

The invention relates to the technical field of bending machines, in particular to a modular rear material blocking structure of a pure electric bending machine.

Background

The bending machine is important equipment for bending and forming workpieces in the sheet metal industry and is used for pressing steel plates into parts in various shapes according to process requirements. The rear material blocking device of the bending machine is an important working mechanism for bending and positioning of the bending machine, and is mainly used for controlling the feeding length of a plate to be processed and ensuring that the plate is bent at a preset position. In order to accurately position the bending part conveniently, some bending machines are required to have the function of adjusting the position of the rear material blocking.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide a modular rear material blocking structure of a pure electric bending machine, which has the advantage that the position of the rear material blocking structure can be adjusted.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a modular rear material blocking structure of a pure electric bending machine, which comprises a base connected with a bending machine frame, wherein a bottom plate is detachably connected to the base, a sliding seat is connected to the bottom plate in a sliding manner, a first driving piece for driving the sliding seat to move towards or away from the bending machine is arranged on the bottom plate, a lifting platform sliding along the vertical direction is arranged on the sliding seat, the lifting platform is connected with a finger blocking plate through a connecting piece, a second driving piece for driving the lifting platform to vertically move up and down is arranged on the sliding seat, and the distance between the finger blocking plate and the lifting platform is adjusted through the connecting piece by the lifting platform.

Through adopting above-mentioned technical scheme, first driving piece drive slide is to being close to or keeping away from the bender direction removal, and then be convenient for adjust the distance between fender finger board and the bender, the setting of second driving piece is convenient for adjust the lift of elevating platform and then be convenient for adjust the high position of fender finger board for the material that holds in the palm that the fender finger board can be better, the setting of connecting piece makes the connecting piece can finely tune the position of fender finger board, satisfy the operation requirement, improve the regulation precision of fender finger board.

Preferably, the first driving part comprises two slide rails arranged on the bottom plate and a slider connected to the two slide rails in a sliding manner respectively, the slide base comprises a slide plate arranged on the slider through a locking bolt and a connecting plate connected with the two slide plates respectively, a driving plate is arranged at the lower end of the connecting plate, a lead screw is connected to the bottom plate in a rotating manner and is in threaded connection with the driving plate, and a first motor for driving the lead screw to rotate is arranged on the bottom plate.

Preferably, the bottom plate all is equipped with at the both ends of lead screw and supplies lead screw pivoted riser, lead screw one end is worn out the riser and is being equipped with first synchronizing wheel in the one end that wears out coaxially, the base is equipped with the fixed plate of L shape in one side of bottom plate, first motor sets up on the fixed plate just the vertical limit of fixed plate is worn out in the pivot of first motor and is being equipped with the second synchronizing wheel in the one end that wears out coaxially, connect through first endless belt between first synchronizing wheel and the second synchronizing wheel, the fixed plate passes through fastening bolt and is connected with the base, set up the regulation hole that supplies fastening bolt to remove along first endless belt length direction on the fixed plate, fastening bolt's nut size is greater than the width of regulation hole.

Preferably, the second driving part comprises support plates arranged at two ends of the connecting plate and a horizontal plate connecting the upper end surfaces of the two support plates, the length direction of the two support plates is perpendicular to the length direction of the screw rods, two ends of the upper end surface of the horizontal plate are respectively provided with a guide post for the lifting platform to vertically slide up and down, two guide posts arranged at one side of the lifting platform are arranged, the horizontal plate is rotatably connected between the two guide posts and is respectively provided with a threaded rod, at the moment, the two threaded rods are respectively arranged at two sides of the horizontal plate and are in threaded connection with the lifting platform, the lower ends of the two threaded rods penetrate through the horizontal plate, one penetrating end of the lower ends of the two threaded rods is coaxially connected with a third synchronous wheel, the horizontal plate is provided with a second motor between the two third synchronous wheels, a rotating shaft of the second motor extends out of the lower part of the horizontal plate, and one extending end of the rotating shaft of the second motor is provided with a fourth synchronous wheel, and the fourth synchronizing wheel is connected with the two third synchronizing wheels through a second annular belt.

Preferably, the horizon bar all rotates between fourth synchronizing wheel and two third synchronizing wheels and is equipped with the pinch roller, the pinch roller is located the second annular belt outside and offsets with the second annular belt, be equipped with on the horizontal plate and rotate the regulation pole of being connected with the pinch roller, set up on the horizontal plate and supply the regulating rod to keep away from second annular belt or be close to the spout that second annular belt direction removed, extend the spout and have the touch multitouch of contradicting with the horizontal plate up end at the one end threaded connection who extends in the upper end of regulation pole.

Preferably, the upper ends of the two guide posts located on the same side are connected through a limiting plate, the upper end faces of the guide posts are coaxially provided with connecting posts, the diameters of the connecting posts are smaller than those of the guide posts, the limiting plate is provided with through holes for the connecting posts to penetrate out, the upper end faces of the connecting posts are in threaded connection with pressing plates for pressing the limiting plates at the upper ends of the guide posts, and the pressing plates are provided with connecting rods in threaded connection with the upper end faces of the connecting posts.

Preferably, the limiting plate is provided with a protective cover for protecting the upper end of the threaded rod.

Preferably, the connecting piece is including setting up the first board in elevating platform one side, be equipped with the second board that extends to on the first board on the fender fingerboard, the elevating platform has first dead lever at the equal threaded connection in both sides of fender fingerboard, the one end of first dead lever is worn out the elevating platform and is connected with second board side threaded connection, the elevating platform all is equipped with the adjusting lever in one side of first dead lever, adjusting lever and first dead lever threaded connection, and one end extend first dead lever and contradict with the side of second board, the length direction of first dead lever and adjusting lever is on a parallel with the moving direction of slide.

Preferably, the second plate has been seted up waist type groove along the length direction that is on a parallel with first fixed link, the constant head tank that the size is less than waist type groove tank bottom is seted up to the tank bottom in waist type groove, be equipped with the vertical pole that one end wore out the constant head tank and with first board threaded connection on the second plate, vertical pole upper end is equipped with the cardboard of contradicting with waist type groove tank bottom.

Preferably, a side threaded connection that deviates from the second board of first board has the lifter, the one end of lifter is worn out first board and is contradicted with the face of second board, the lifter is equipped with four, and two liang of distributions are in the both sides of lifter, waist type groove is close to the adjusting lever and distributes, and is located the length that distance between two lifters of vertical pole both sides is greater than the constant head tank.

The invention has the beneficial effects that: first driving piece drive slide removes to being close to or keeping away from the bender direction, and then be convenient for adjust the distance between fender finger board and the bender, the setting of second driving piece is convenient for adjust the lift of elevating platform and then is convenient for adjust the high position of fender finger board for the material that holds in the palm that the fender finger board can be better, the setting of connecting piece makes the connecting piece can finely tune the position of fender finger board, satisfies the operation requirement, improves the regulation precision of fender finger board.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present embodiment;

fig. 2 is a schematic structural diagram for embodying a vertical rod in the present embodiment;

FIG. 3 is a schematic structural diagram of the connecting column of the present embodiment;

fig. 4 is a schematic structural diagram of the embodiment for embodying the pinch roller;

fig. 5 is a schematic structural diagram of the waist-shaped groove of the present embodiment.

Description of reference numerals:

in the figure: 1. a base; 11. a base plate; 12. a lifting platform; 13. a finger guard; 14. a slide rail; 141. a slider; 142. a slide plate; 143. a connecting plate; 144. a drive plate; 145. a screw rod; 146. a first motor; 147. a vertical plate; 15. a first synchronizing wheel; 151. a fixing plate; 152. a second synchronizing wheel; 153. a first endless belt; 154. an adjustment hole; 155. fastening a bolt; 16. a support plate; 161. a horizontal plate; 162. a guide post; 163. a threaded rod; 164. a third synchronizing wheel; 165. a second motor; 166. a fourth synchronizing wheel; 167. a second endless belt; 168. a pinch roller; 169. adjusting a rod; 1691. a chute; 1692. a contact block; 17. a limiting plate; 171. connecting columns; 172. pressing a plate; 173. a connecting rod; 174. a protective cover; 18. a first plate; 181. a second plate; 182. a first fixing lever; 183. an adjusting lever; 184. a waist-shaped groove; 185. positioning a groove; 186. a vertical rod; 187. clamping a plate; 188. a lifting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a material structure is kept off behind pure electric bender's modular, as fig. 1 and fig. 2, include the base 1 of being connected with the bender frame, can dismantle on the base 1 and be connected with bottom plate 11, it is connected with the slide to slide on the bottom plate 11, be equipped with the first driving piece that the drive slide removed to being close to or keeping away from the bender direction on the bottom plate 11, be equipped with the elevating platform 12 that slides along vertical direction on the slide, elevating platform 12 is connected with fender fingerboard 13 through the connecting piece, be equipped with the second driving piece of vertical removal about the drive elevating platform 12 on the slide, elevating platform 12 adjusts the distance between fender fingerboard 13 and the elevating platform 12 through the connecting piece.

As shown in fig. 1 and fig. 2, the first driving part drives the sliding seat to move towards the direction close to or away from the bending machine, so that the distance between the finger baffle 13 and the bending machine can be conveniently adjusted, the second driving part is arranged so that the lifting of the lifting platform 12 can be conveniently adjusted and the height position of the finger baffle 13 can be conveniently adjusted, so that the finger baffle 13 can better support materials, the connecting part is arranged so that the connecting part can finely adjust the position of the finger baffle 13, the use requirement is met, and the adjusting precision of the finger baffle 13 is improved. At this time, the moving direction of the lifting table 12 is an axis R, the moving direction of the slide is an axis X, the axis R moves back and forth along with the axis X, and the axis R independently moves up and down. The whole structure is compact, the whole body can be in place, the split installation can be realized, and the disassembly is convenient.

As shown in fig. 1 and 2, locating levers are all worn to be equipped with near four angular point department of bottom plate 11 upper end, the one end of locating lever is worn out the bottom plate 11 lower extreme and is got into 1 upper end of base and 1 threaded connection with the base, set up the locating hole that supplies the locating lever to wear out on the bottom plate 11, locating hole female connection has the reference column, the upper and lower both ends of reference column are worn out to the locating lever, reference column outer wall threaded connection has the locating piece of contradicting with 11 up end of bottom plate, one side outer wall of locating lever upper end wearing out the reference column upper end is equipped with the compact heap that compresses tightly in the reference column upper end, the outer wall part of compact heap is the prismatic face. The compact heap of being convenient for rotate this moment drives the locating lever and separates with base 1, and then convenient to detach bottom plate 11, and the setting of reference column is convenient for fix the position of bottom plate 11 when the locating lever is connected with base 1.

As shown in fig. 1 and fig. 3, the first driving member includes two slide rails 14 disposed on the bottom plate 11 and sliders 141 slidably connected to the two slide rails 14, the sliders include slide plates 142 disposed on the sliders 141 through locking bolts and connecting plates 143 connecting the two slide plates 142, a driving plate 144 is disposed at a lower end of the connecting plates 143, a lead screw 145 is rotatably connected to the bottom plate 11, the lead screw 145 is connected to the driving plate 144 in a threaded manner, and a first motor 146 for driving the lead screw 145 to rotate is disposed on the bottom plate 11.

As shown in fig. 1 and fig. 3, at this time, the first motor 146 drives the screw 145 to rotate forward and backward, so that the screw 145 drives the driving plate 144 to move back and forth along the length direction of the screw 145, and further, the slider 141 is driven to move on the slide rail 14, so that the position of the finger guard 13 changes.

As shown in fig. 1 and 3, the bottom plate 11 is provided with vertical plates 147 at two ends of the screw 145 for the screw 145 to rotate, one end of the screw 145 penetrates through the vertical plates 147 and is coaxially provided with a first synchronizing wheel 15 at the penetrating end, the first synchronizing wheel 15 is arranged at one side of the bottom plate 11 far away from the bending machine, the base 1 is provided with an L-shaped fixing plate 151 at one side of the bottom plate 11, the first motor 146 is arranged on the fixing plate 151, a rotating shaft of the first motor 146 penetrates through a vertical edge of the fixing plate 151 and is coaxially provided with a second synchronizing wheel 152 at the penetrating end, the first synchronizing wheel 15 and the second synchronizing wheel 152 are connected through a first endless belt 153, the fixing plate 151 is connected with the base 1 through a fastening bolt 155, the fixing plate 151 is provided with an adjusting hole 154 for the fastening bolt 155 to move along the length direction of the first endless belt 153, the nut size of the fastening bolt 155 is larger than the width of the adjusting hole 154, at this time, when the fastening bolt 155 is not connected with the base 1, the position of the fixing plate 151 and the distance between the first synchronizing wheel 15 and the second synchronizing wheel 152 are conveniently adjusted, so that the first endless belt 153 is always in a tensioned state, and the first motor 146 is convenient to drive the first synchronizing wheel 15 to rotate. The screw 145 has low noise and high precision in transferring the whole motion.

As shown in fig. 1 and 4, the second driving member includes support plates 16 disposed at two ends of the connecting plate 143 and a horizontal plate 161 connecting upper end surfaces of the two support plates 16, the length direction of the two support plates 16 is perpendicular to the length direction of the screw 145, two ends of the upper end surface of the horizontal plate 161 are both provided with guide posts 162 for the vertical sliding of the lifting platform 12, at this time, a gap exists between the horizontal plate 161 and the connecting plate 143, two guide posts 162 disposed at one side of the lifting platform 12 are provided, the horizontal plate 161 is rotatably connected with threaded rods 163 between the two guide posts 162, at this time, the number of the threaded rods 163 is two and are respectively disposed at two sides of the horizontal plate 161, the two threaded rods 163 are both in threaded connection with the lifting platform 12, the lower ends of the two threaded rods 163 both penetrate through the horizontal plate 161 and are both coaxially connected with third synchronizing wheels 164 at the penetrating ends, the horizontal plate 161 is provided with a second motor 165 between the two third synchronizing wheels 164, the rotating shaft of the second motor 165 extends out of the lower part of the horizontal plate 161, and a fourth synchronizing wheel 166 is arranged at one extending end, and the fourth synchronizing wheel 166 is connected with the two third synchronizing wheels 164 through a second annular belt 167. And the fourth synchronizing wheel 166 and the two third synchronizing wheels 164 are distributed in a triangular manner, so that the second motor 165 can drive the two third synchronizing wheels 164 to rotate, the two threaded rods 163 can drive the lifting platform 12 to move up and down, and the lifting stability of the lifting platform 12 is improved due to the action of the guide posts 162. And a gap exists between the lower end surfaces of the fourth synchronizing wheel 166 and the two third synchronizing wheels 164 and the upper end surface of the connecting plate 143, so that the fourth synchronizing wheel 166 and the two third synchronizing wheels 164 can rotate conveniently.

As shown in fig. 1 and 4, the horizontal rod is provided with a pressing wheel 168 between the fourth synchronizing wheel 166 and the two third synchronizing wheels 164, the pressing wheel 168 is located outside the second annular belt 167 and is abutted against the second annular belt 167, the horizontal plate 161 is provided with an adjusting rod 169 rotatably connected with the pressing wheel 168, the horizontal plate 161 is provided with a sliding slot 1691 through which the adjusting rod 169 moves in a direction away from the second annular belt 167 or close to the second annular belt 167, the upper end of the adjusting rod 169 extends out of the sliding slot 1691, and one extended end of the adjusting rod is in threaded connection with an abutting block 1692 abutted against the upper end face of the horizontal plate 161. When the contact block 1692 is rotated to move the contact block 1692 away from the horizontal plate 161, the adjustment rod 169 drives the pressing wheel 168 to move toward the second annular belt 167, so as to tension the second annular belt 167. After the movement is completed, the abutting block 1692 is rotated to make the abutting block 1692 abut against the upper end surface of the horizontal plate 161 again, so that the operation is convenient.

As shown in fig. 1 and 3, two guide posts 162 that are located same side are connected through limiting plate 17 in the upper end, limiting plate 17's setting has restricted the ascending distance of elevating platform 12, and then reduce the condition that elevating platform 12 breaks away from threaded rod 163 and take place, the coaxial spliced pole 171 that is less than guide post 162 in diameter that is equipped with of guide post 162 up end, set up the hole of wearing out that supplies spliced pole 171 to wear out on limiting plate 17, spliced pole 171 up end threaded connection has and compresses tightly limiting plate 17 clamp plate 172 in guide post 162 upper end, be equipped with on clamp plate 172 with spliced pole 171 up end threaded connection's connecting rod 173. At this time, the pressing plate 172 is rotated to drive the connecting rod 173 to rotate, so that the limiting plate 17 can be limited on the upper end surface of the guide post 162, and the structure is ingenious.

As shown in fig. 1 and 3, the limiting plate 17 is provided with a protective cover 174 for protecting the upper end of the threaded rod 163, and at this time, the protective cover 174 is arranged to protect the threaded rod 163, so that damage to the threads on the threaded rod 163 is reduced, and the work is prevented from being mistakenly touched on the threaded rod 163.

As shown in fig. 2 and 5, the connecting member includes a first plate 18 disposed at one side of the lifting platform 12, a second plate 181 disposed on the finger baffle 13 and extending to the first plate 18, wherein the thickness of the first plate 18 and the second plate 181 when they are abutted against each other is the thickness of the lifting platform 12, the lifting platform 12 is connected with first fixing rods 182 at both sides of the finger baffle 13 by threads, one end of each first fixing rod 182 penetrates through the lifting platform 12 and is connected with the side surface of the second plate 181 by threads, the position of the finger baffle 13 is limited by the first fixing rod 182, the lifting platform 12 is provided with an adjusting rod 183 at one side of the first fixing rod 182, the adjusting rod 183 is connected with the first fixing rod 182 by threads, and one end of each adjusting rod 182 extends out of the first fixing rod 182 and is abutted against the side surface of the second plate 181, and the length directions of the first fixing rod 182 and the adjusting rod 183 are parallel to the moving direction of the sliding base. The user rotates one end of the first fixing rod 182 away from the second plate 181, at this time, the adjusting rod 183 is rotated to enable the second plate 181 to slide on the upper plate of the first plate 18, the distance between the finger guard 13 and the bending machine is adjusted again, after the adjustment is completed, the first fixing rod 182 is rotated to enable one end of the first fixing rod 182 to be in threaded connection with the second plate 181, the position of the second plate 181 is further fixed, and the position of the wet finger guard 13 is also fixed.

As shown in fig. 2 and 5, the second plate 181 is provided with a waist-shaped groove 184 along a length direction parallel to the first fixing rod 182, the bottom of the waist-shaped groove 184 is provided with a positioning groove 185 smaller than the bottom of the waist-shaped groove 184, the length direction of the positioning groove 185 is along the length direction of the waist-shaped groove 184, the second plate 181 is provided with a vertical rod 186, one end of the vertical rod penetrates through the positioning groove 185 and is in threaded connection with the first plate 18, the arrangement of the waist-shaped groove 184 and the positioning groove 185 facilitates the movement of the vertical rod 186 when the adjusting rod 183 adjusts the position of the finger-blocking plate 13, and the upper end of the vertical rod 186 is provided with a clamping plate 187 abutting against the bottom of the waist-shaped groove 184. When the finger stop 13 does not need to be moved, rotating the catch plate 187 causes the catch plate 187 to again fix the position of the second plate 181 on the first plate 18.

As shown in fig. 2 and 5, a lifting rod 188 is connected to one side surface of the first plate 18, which is away from the second plate 181, through threads, one end of the lifting rod 188 penetrates through the first plate 18 and abuts against the plate surface of the second plate 181, four lifting rods 188 are provided, the lifting rods 188 are distributed on two sides of the lifting rod 188, the waist-shaped grooves 184 are distributed close to the adjusting rod 183, and the distance between the two lifting rods 188 on two sides of the vertical rod 186 is greater than the length of the positioning groove 185. When the height of the lifting rod 188 extending out of the upper end face of the first plate 18 is changed by rotating the lifting rod 188, the distance between the second plate 181 and the first plate 18 can be conveniently adjusted, so that the position of the second plate 181 can be adjusted, and the first fixing rod 182 and the second plate 181 can be conveniently connected in a threaded mode.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a material structure is kept off behind modular of electricelectric bender, includes base (1) of being connected with the bender frame, a serial communication port, can dismantle on base (1) and be connected with bottom plate (11), it is connected with the slide to slide on bottom plate (11), be equipped with the first driving piece that the drive slide removed to being close to or keeping away from the bender direction on bottom plate (11), be equipped with elevating platform (12) that slide along vertical direction on the slide, elevating platform (12) are connected with fender fingerboard (13) through the connecting piece, be equipped with the second driving piece of vertical removal about drive elevating platform (12) on the slide, the distance between fender fingerboard (13) and elevating platform (12) is adjusted through the connecting piece in elevating platform (12).

2. The modular backstop structure of pure electric bender according to claim 1, characterized in that, the first driving piece includes two slide rails (14) arranged on the bottom plate (11) and sliders (141) slidably connected to the two slide rails (14), the sliders include slide plates (142) respectively arranged on the sliders (141) through locking bolts and connecting plates (143) connecting the two slide plates (142), a driving plate (144) is arranged at the lower end of the connecting plates (143), a lead screw (145) is rotatably connected to the bottom plate (11), the lead screw (145) is connected with the driving plate (144) in a threaded manner, and a first motor (146) for driving the lead screw (145) to rotate is arranged on the bottom plate (11).

3. The modular backstop structure of pure electric bending machine according to claim 2, characterized in that, the bottom plate (11) is provided with vertical plates (147) for the rotation of the lead screw (145) at both ends of the lead screw (145), one end of the lead screw (145) penetrates out of the vertical plates (147) and is coaxially provided with a first synchronizing wheel (15) at the penetrating end, the base (1) is provided with an L-shaped fixing plate (151) at one side of the bottom plate (11), the first motor (146) is arranged on the fixing plate (151) and the rotating shaft of the first motor (146) penetrates out of the vertical edge of the fixing plate (151) and is coaxially provided with a second synchronizing wheel (152) at the penetrating end, the first synchronizing wheel (15) and the second synchronizing wheel (152) are connected through a first annular belt (153), the fixing plate (151) is connected with the base (1) through a fastening bolt (155), the fixing plate (151) is provided with an adjusting hole (154) for a fastening bolt (155) to move along the length direction of the first annular belt (153), and the size of a nut of the fastening bolt (155) is larger than the width of the adjusting hole (154).

4. The modular backstop structure of pure electric bending machine according to claim 2, characterized in that, the second driving piece includes supporting plates (16) arranged at two ends of the connecting plate (143) and a horizontal plate (161) connecting the upper end surfaces of the two supporting plates (16), the length direction of the two supporting plates (16) is perpendicular to the length direction of the screw rod (145), two ends of the upper end surface of the horizontal plate (161) are respectively provided with a guide post (162) for the lifting platform (12) to vertically slide up and down, two guide posts (162) arranged at one side of the lifting platform (12) are arranged, and the horizontal plate (161) is rotatably connected with a threaded rod (163) between the two guide posts (162), at this time, the number of the threaded rods (163) is two and are respectively arranged at two sides of the horizontal plate (161), the two threaded rods (163) are both in threaded connection with the lifting platform (12), two the lower extreme of threaded rod (163) all wears out horizontal plate (161) and is all coaxial coupling to have third synchronizing wheel (164) in the one end of wearing out, horizontal plate (161) are equipped with second motor (165) between two third synchronizing wheels (164), the below of horizontal plate (161) and the one end that extends are equipped with fourth synchronizing wheel (166) are extended in the pivot of second motor (165), connect through second endless belt (167) between fourth synchronizing wheel (166) and two third synchronizing wheels (164).

5. The modular rear material blocking structure of a pure electric bending machine as claimed in claim 4, wherein the horizontal rod is rotatably provided with a pressing wheel (168) between the fourth synchronizing wheel (166) and the two third synchronizing wheels (164), the pressing wheel (168) is located outside the second annular belt (167) and is abutted against the second annular belt (167), the horizontal plate (161) is provided with an adjusting rod (169) rotatably connected with the pressing wheel (168), the horizontal plate (161) is provided with a sliding groove (1691) for the adjusting rod (169) to move towards the direction far away from the second annular belt (167) or close to the second annular belt (167), the upper end of the adjusting rod (169) extends out of the sliding groove (1691), and one extended end of the adjusting rod is in threaded connection with an abutting block (1692) abutted against the upper end face of the horizontal plate (161).

6. The modular backstop structure of pure electric bender according to claim 5, characterized in that, the upper end of two guide posts (162) that lie in same side is connected through limiting plate (17), the spliced pole (171) that the diameter is less than guide post (162) are equipped with to the guide post (162) up end is coaxial, set up the exit hole that supplies spliced pole (171) to wear out on limiting plate (17), spliced pole (171) up end threaded connection has compresses tightly limiting plate (17) clamp plate (172) in guide post (162) upper end, be equipped with on clamp plate (172) with spliced pole (171) up end threaded connection's connecting rod (173).

7. The modular backstop structure for pure electric bending machines according to claim 6, characterized in that said limit plate (17) is provided with a protective cover (174) for protecting the upper end of the threaded rod (163).

8. The modular backstop structure of a pure electric bending machine as claimed in claim 1, the connecting piece comprises a first plate (18) arranged on one side of the lifting platform (12), a second plate (181) extending to the first plate (18) is arranged on the finger baffle plate (13), the two sides of the lifting platform (12) on the finger baffle (13) are both connected with a first fixed rod (182) in a threaded manner, one end of the first fixing rod (182) penetrates out of the lifting platform (12) and is in threaded connection with the side surface of the second plate (181), the lifting platform (12) is provided with adjusting rods (183) at one side of the first fixing rod (182), the adjusting rods (183) are in threaded connection with the first fixing rod (182), one end of the first fixing rod (182) extends out and is abutted against the side surface of the second plate (181), the length directions of the first fixing rod (182) and the adjusting rod (183) are parallel to the moving direction of the sliding seat.

9. The modular backstop structure of pure electric bending machine according to claim 8, characterized in that, the second plate (181) has a waist-shaped groove (184) along the length direction parallel to the first fixed rod (182), the groove bottom of the waist-shaped groove (184) has a positioning groove (185) with a size smaller than that of the groove bottom of the waist-shaped groove (184), the second plate (181) is provided with a vertical rod (186) with one end penetrating through the positioning groove (185) and in threaded connection with the first plate (18), and the upper end of the vertical rod (186) is provided with a clamping plate (187) abutting against the groove bottom of the waist-shaped groove (184).

10. The modular backstop structure of pure electric bending machine according to claim 9, characterized in that, a lifting rod (188) is connected to the first plate (18) in a threaded manner at a side facing away from the second plate (181), one end of the lifting rod (188) penetrates through the first plate (18) and is abutted against the plate surface of the second plate (181), four lifting rods (188) are provided and are distributed on two sides of the lifting rods (188), the waist-shaped grooves (184) are distributed close to the adjusting rods (183), and the distance between the two lifting rods (188) on two sides of the vertical rod (186) is greater than the length of the positioning groove (185).