Automatic side positioning device for longitudinal beam connecting plate and bending machine

Abstract

The application discloses a kind of longitudinal beam connecting plate automatic side positioning device and bending machine, including workbench, transmission mechanism, positioning assembly, pushing mechanism and control system.The transmission mechanism is oppositely arranged with the pushing mechanism on the two sides of the workbench, the positioning assembly is arranged at the end of the transmission mechanism close to the pushing mechanism, and the transmission mechanism can drive the positioning assembly to move along the first direction, the part fixing piece is installed on the workbench for adsorbing parts;The pushing mechanism is used to push the part and the positioning assembly against, and the control system is electrically connected with the transmission mechanism and the pushing mechanism respectively.The automatic side positioning operation efficiency is high, which avoids the fatigue of operators caused by manual positioning operation, and avoids the occurrence of safety hazards.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of longitudinal beam connecting plate processing, in particular to a longitudinal beam connecting plate automatic edge positioning device and a bending machine. BACKGROUND

[0002] The longitudinal beam connecting plate parts are bent after the machining of the shape and holes is completed by a laser cutting device. Currently, manual positioning is adopted for the bending of the parts, and the following problems exist: the manual positioning operation is labor-intensive, the number of connecting plates bent per day is about 1600, manual bending at an angle of 90°, positioning and carrying are required, the total weight of the parts transported by each person per day is >10 tons, the difficult operation level is grade four (heavy labor), the manual positioning operation is low in efficiency and cannot meet the requirements of the bending machine in terms of the rhythm of bending and feeding, and manual operation is prone to cause fatigue of the operator and safety hazards such as falling and bruising. SUMMARY

[0003] The technical problem to be solved by the present application is that manual positioning operation is labor-intensive, low in efficiency and prone to cause fatigue of the operator and safety hazards.

[0004] To solve the above technical problems, the present application provides a longitudinal beam connecting plate automatic edge positioning device, which is installed on a bending machine, the bending machine comprises a workbench, the longitudinal beam connecting plate automatic edge positioning device comprises a transmission mechanism, a positioning assembly, a part fixing member, a pushing mechanism and a control system, the transmission mechanism and the pushing mechanism are arranged on the two sides of the workbench, the positioning assembly is arranged at one end of the transmission mechanism close to the pushing mechanism, the transmission mechanism can drive the positioning assembly to move along a first direction, the part fixing member is installed on the workbench and used for adsorbing parts, the pushing mechanism is used for pushing the parts and the positioning assembly to abut against each other, and the control system is electrically connected with the transmission mechanism and the pushing mechanism.

[0005] In some embodiments, the transmission mechanism is installed on a first support, and the pushing mechanism is installed on a second support.

[0006] In some embodiments, the transmission mechanism comprises a first driving member, a screw transmission assembly and a first sliding plate assembly, the first driving member is connected with one end of the screw transmission assembly, the other end of the screw transmission assembly is connected with one side of the first sliding plate assembly, so as to drive the first sliding plate assembly to reciprocate along a first direction, and the other side of the first sliding plate assembly is connected with the positioning assembly.

[0007] In some embodiments, the screw rod transmission assembly comprises a transmission member, a first fixing member and a second fixing member, the output shaft of the driving member is connected with the transmission member, the transmission member is connected with the first support through the first fixing member, and the transmission member is connected with the first sliding plate assembly through the second fixing member.

[0008] In some embodiments, the first sliding plate assembly comprises a first guide rail and a first sliding plate, the first guide rail is arranged on the first support, one side of the first sliding plate is connected with the screw rod transmission assembly, the other side is connected with the positioning assembly, and the first sliding plate is slidingly connected with the first guide rail.

[0009] In some embodiments, the positioning assembly comprises a fixing frame and two positioning pins, the fixing frame is connected with the transmission mechanism, and the two positioning pins are arranged on the fixing frame in a spaced manner.

[0010] In some embodiments, the pushing mechanism comprises a second driving member, a second sliding plate assembly and a pushing member, the second driving member is installed on the second support, the second sliding plate assembly is slidingly connected with the second support, one side of the second sliding plate assembly is connected with the output shaft of the second driving member, and the other side is connected with the pushing member, so that the second sliding plate assembly drives the pushing member to push the part against the positioning assembly.

[0011] In some embodiments, the second sliding plate assembly comprises a second guide rail and a second sliding plate, the second guide rail is arranged on the second support, one side of the second sliding plate is connected with the second driving member, the other side is connected with the pushing member, and the second sliding plate is slidingly connected with the second guide rail.

[0012] In some embodiments, the part fixing member is provided with a magnetic member and a detection switch, the magnetic member is used for adsorbing the part, and the detection switch is electrically connected with the control system and is used for detecting whether there is a part on the part fixing member.

[0013] The embodiment of the present application also provides a bending machine, which comprises a machine tool, a bending device, an automatic reciprocating machine, a workbench and a longitudinal beam connecting plate automatic edge positioning device as described above, the workbench and the longitudinal beam connecting plate automatic edge positioning device are installed on the machine tool, the workbench is arranged below the bending device, the longitudinal beam connecting plate automatic edge positioning device is arranged beside the workbench, and the automatic reciprocating machine is used for transporting a part to the longitudinal beam connecting plate automatic edge positioning device.

[0014] Compared with the prior art, the longitudinal beam connecting plate automatic edge positioning device provided by the embodiment of the present application has the following beneficial effects:

[0015] In this embodiment of the invention, the part is placed on a part fixing component, and then the control system activates the transmission mechanism to drive the positioning component to move along a first direction to a designated position. The pushing mechanism then activates, pushing the part to the bending position (i.e., the part abuts against the positioning component), thus completing the edge positioning of the part. This embodiment features high efficiency in automatic edge positioning, avoiding the safety hazards caused by operator fatigue resulting from manual positioning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the automatic edge positioning device for the longitudinal beam connecting plate and the workbench provided in an embodiment of the present invention;

[0017] Figure 2 This is a side view of the automatic edge positioning device for the longitudinal beam connecting plate and the workbench provided in an embodiment of the present invention;

[0018] Figure 3 This is a top view of the automatic edge positioning device for the longitudinal beam connecting plate and the workbench provided in an embodiment of the present invention;

[0019] In the diagram, 100 represents the workbench;

[0020] 200. Automatic edge positioning device for longitudinal beam connecting plates;

[0021] 21. Transmission mechanism; 211. First driving component; 212. Screw drive assembly; 2121. Transmission component; 2122. First fixing component; 2123. Second fixing component; 213. First slide assembly; 2131. First guide rail; 2132. First slide; 21321. Notch; 214. Mounting plate;

[0022] 22. Positioning component; 221. Fixing bracket; 222. Positioning pin;

[0023] 23. Part fastener; 231. Mounting hole;

[0024] 24. Pushing mechanism; 241. Second driving component; 242. Second slide assembly; 2421. Second guide rail; 2422. Second slide; 243. Pushing component; 2431. Fixing part; 2432. Pushing part; 244. Bracket;

[0025] 25. Control system;

[0026] 26. First support;

[0027] 27. Second support;

[0028] 28. First welding base;

[0029] 29. Second welding base. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] Please see Figure 1 This invention provides a bending machine, including a machine tool, a bending device, an automatic reciprocating machine, a worktable 100, and an automatic edge positioning device 200 for the longitudinal beam connecting plate. The worktable 100 and the automatic edge positioning device 200 for the longitudinal beam connecting plate are mounted on the machine tool. The worktable 100 is located below the bending device, and the automatic edge positioning device 200 for the longitudinal beam connecting plate is located beside the worktable 100. The automatic reciprocating machine is used to transport the parts to the automatic edge positioning device 200 for the longitudinal beam connecting plate. The automatic edge positioning device 200 for the longitudinal beam connecting plate positions the parts at the designated position on the worktable 100. The bending device then presses down to complete the bending.

[0032] like Figure 1 As shown, the automatic edge positioning device 200 for the longitudinal beam connecting plate includes a transmission mechanism 21, a positioning component 22, a part fixing component 23, a pushing mechanism 24, and a control system 25. The transmission mechanism 21 and the pushing mechanism 24 are positioned opposite each other on opposite sides of the worktable 100. The positioning component 22 is located at the end of the transmission mechanism 21 near the pushing mechanism 24, and the transmission mechanism 21 can drive the positioning component 22 to move along a first direction. The part fixing component 23 is mounted on the worktable 100 and is used to absorb parts. The automatic reciprocating machine places the parts on the part fixing component 23 to achieve initial positioning. The pushing mechanism 24 is used to push the parts against the positioning component 22. The control system 25 is electrically connected to both the transmission mechanism 21 and the pushing mechanism 24, and is used to control the transmission mechanism 21 to move the positioning component 22 to a designated position and to control the pushing mechanism 24 to push the parts located on the part fixing component 23 against the positioning component 22 to achieve part positioning.

[0033] Specifically, in this embodiment, the control system 25 is activated, and the automatic reciprocating machine automatically feeds the part onto the part fixing component 23, which then adsorbs and fixes the part. The control system 25 activates the transmission mechanism 21, driving the positioning component 22 to move along the first direction to the designated position. The pushing mechanism 24 is activated, pushing the part to the bending position (i.e., the part abuts against the positioning component 22), thus achieving the positioning of the part in the first direction. During the process of the pushing mechanism 24 pushing the part to the bending position along the first direction, the positioning correction of the part in the second direction is achieved, thereby completing the edge positioning of the part. In this embodiment, the edge positioning time of the automatic edge positioning operation is reduced from 10 seconds / piece to 5 seconds / piece, improving the work efficiency. At the same time, it can meet the cycle time requirements of the bending machine's bending and feeding, avoiding the safety hazards caused by operator fatigue due to manual positioning operations. In this embodiment, the control system 25 can be activated by a manual button. The control system 25 communicates with the MES system in real time, automatically calling the bending processing program and bending dimensions of the part.

[0034] Understandably, the first direction refers to along such as Figure 1 The Y-axis direction is shown, and the second direction refers to the direction along the Y-axis as shown. Figure 1 The X-axis direction is shown.

[0035] See also Figure 2 The automatic edge positioning device 200 for the longitudinal beam connecting plate also includes a first bracket 26 and a second bracket 27. The transmission mechanism 21 is mounted on the first bracket 26, and the pushing mechanism 24 is fixed to the second bracket 27 by bolts. The first bracket 26 has strong rigidity and is fixed to a first welding base 28, which is fixed to the machine tool by welding. The first bracket 26 is a steel structure support frame that provides support for the transmission mechanism 21. Similarly, the second bracket 27 is a steel structure made of steel and is fixed to a second welding base 29 by bolts. The second welding base 29 is connected to the machine tool and provides support for the pushing mechanism 24.

[0036] In some embodiments, the transmission mechanism 21 includes a first driving member 211, a lead screw drive assembly 212, and a first sliding plate assembly 213. The first driving member 211 is fixed to the first bracket 26 via a mounting plate 214. The output shaft of the first driving member 211 is connected to one end of the lead screw drive assembly 212. A through hole is provided in the mounting plate 214 to allow the output shaft of the first driving member 211 to extend out or the lead screw drive assembly 212 to pass through and connect with the output shaft of the first driving member 211. The other end of the lead screw drive assembly 212 is connected to one side of the first sliding plate assembly 213. The other side of the first sliding plate assembly 213 is connected to the positioning assembly 22. The first sliding plate assembly 213 is slidably connected to the first bracket 26 and can move forward or backward along a first direction on the first bracket 26.

[0037] In this embodiment, the control system 25 sends a command to the first driving component 211, which drives the lead screw transmission assembly 212 to rotate forward or backward, thereby causing the first sliding plate assembly 213 to move forward or backward in the first direction, and in turn causing the positioning component 22 to move back and forth, thus adjusting the position of the positioning component 22. It can be understood that the first driving component 211 in this embodiment can be a servo motor or a drive cylinder, etc. Preferably, the first driving component 211 in this embodiment is a servo motor. Because the position adjustment is driven by a servo motor, the final positional accuracy of the positioning component 22 can be < ±0.1mm.

[0038] See also Figure 3 The lead screw drive assembly 212 includes a drive member 2121, a first fixing member 2122, and a second fixing member 2123. Two first fixing members 2122 are installed at intervals on the first bracket 26. The second fixing member 2123 is installed on the first slide assembly 213, positioned between the two first fixing members 2122. The output shaft of the first drive member 211 is connected to the drive member 2121. The drive member 2121 passes sequentially through one first fixing member 2122 and the second fixing member 2123 to connect with the other first fixing member 2122. Understandably, in this embodiment, the drive member 2121 is connected to the first bracket 26 via the first fixing member 2122, and the drive member 2121 is connected to the first slide assembly 213 via the second fixing member 2123. This allows the drive member 2121 to rotate forward or backward, driving the first slide assembly 213 to move forward or backward in a first direction. Since the second fixing member 2123 in this embodiment is disposed between the two first fixing members 2122, it can limit the movement of the first sliding plate assembly 213 along the first direction when the transmission member 2121 drives the first sliding plate assembly 213 to move. Of course, in some embodiments, there may be only one first fixing member 2122, and the number is not particularly limited here.

[0039] In this embodiment, the transmission component 2121 is a linear threaded rod, the first fixing component 2122 is a fixing nut, and the second fixing component 2123 is an adjusting nut. When the servo motor drives the linear threaded rod to rotate forward or backward, since the fixing nut is fixed on the first bracket 26 and the adjusting nut is fixed on the first slide assembly 213, the position of the first slide assembly 213 changes due to the rotation of the linear threaded rod causing the position of the adjusting nut to change. As the first slide assembly 213 moves forward or backward along the first direction, it drives the position of the positioning component 22 to move back and forth, thereby realizing the adjustment and positioning of the position of the positioning component 22.

[0040] In some embodiments, the first slide plate assembly 213 includes a first guide rail 2131 and a first slide plate 2132. Two first guide rails 2131 are spaced apart on the first bracket 26 and are parallel to a first direction. One side of the first slide plate 2132 is connected to the second fixing member 2123 of the lead screw transmission assembly 212, and the other side of the first slide plate 2132 is connected to the positioning assembly 22. The first slide plate 2132 is slidably connected to the first guide rail 2131. In this embodiment, the first driving member 211 drives the lead screw transmission assembly 212 to move, thereby causing the first slide plate 2132 to slide along the first guide rail 2131.

[0041] It should be noted that in this embodiment, a notch 21321 is formed on the side of the first sliding plate 2132 opposite to the first driving member 211 (e.g., Figure 3 As shown, the notch 21321 constitutes the mounting portion of the first sliding plate 2132. To accommodate the structure of the mounting portion, grooves are formed on both sides of the adjusting nut where it connects to the mounting portion. These grooves are installed on both sides of the mounting portion to achieve a fixed connection with it. Understandably, the mounting portion provides space for the installation of the transmission component 2121 and the first fixing component 2122, and also provides clearance for the forward and backward movement of the first sliding plate 2132, avoiding interference with the transmission component 2121 and the first fixing component 2122.

[0042] In some embodiments, the positioning component 22 includes a fixing frame 221 and two positioning pins 222. The fixing frame 221 is fixed to the first sliding plate 2132 by bolts, and the two positioning pins 222 are spaced apart on the fixing frame 221. In this embodiment, the position of the positioning pins 222 can be adjusted according to the actual bending requirements by the movement of the first sliding plate 2132, thereby achieving positioning and limiting of the part in the first direction. It should be noted that the pushing mechanism 24 determines that the part has been moved into place when it pushes the part until it abuts against both positioning pins 222, and the positioning pins 222 generate resistance to the movement of the part, preventing the pushing mechanism 24 from continuing to move the part.

[0043] In some embodiments, the pushing mechanism 24 includes a second driving member 241, a second sliding plate assembly 242, and a pushing member 243. The second driving member 241 is mounted on a second bracket 27 via a bracket 244. The second sliding plate assembly 242 is slidably connected to the second bracket 27. The output shaft of the second driving member 241 is connected to one side of the second sliding plate assembly 242, and the other side of the second sliding plate assembly 242 is connected to the pushing member 243. The second driving member 241 drives the second sliding plate assembly 242 to move, thereby causing the pushing member 243 to push the part against the positioning assembly 22. In this embodiment, the second driving member 241 can be a servo motor or a cylinder, etc. Preferably, in this embodiment, the second driving component 241 is a cylinder. The piston rod of the cylinder is connected to the second sliding plate assembly 242. The control system 25 issues a command to the cylinder, which drives the second sliding plate assembly 242 to slide, thereby driving the pusher component 243 to move forward and push the part. When the pusher component 243 pushes the part to the designated position, that is, when the part abuts against the two positioning pins 222, the forward movement of the pusher component 243 is hindered. This indicates that the part has moved to the bending position. At this time, the cylinder returns to the original position, realizing the bending and positioning action of the part in the first direction. The control system 25 starts the bending device, and the bending device presses down to complete the bending operation of the part. The bending device sends a signal of completion to the control system 25, and then the bending device stands by. The control system 25 starts the automatic reciprocating machine to automatically unload and simultaneously automatically load the part, and the operation cycle repeats.

[0044] like Figure 2 As shown, the second slide assembly 242 includes a second guide rail 2421 and a second slide 2422. The two second guide rails 2421 are spaced apart on the second bracket 27 and are parallel to the first direction. One side of the second slide 2422 is connected to the second drive member 241, and the other side is connected to the pusher member 243. The second slide 2422 is slidably connected to the second guide rail 2421. In this embodiment, the second drive member 241 drives the second slide 2422 to slide along the length direction of the second guide rail 2421, thereby realizing the forward and backward movement of the pusher member 243.

[0045] In some embodiments, the pusher 243 includes a fixing part 2431 mounted on the second slide plate 2422 and a pusher part 2432 mounted on the fixing part 2431, wherein both the fixing part 2431 and the pusher part 2432 are L-shaped. When the second slide plate 2422 drives the pusher 243 to push the part, the pusher surface of the pusher part 2432 contacts the part, thereby pushing the part. It should be noted that, since the automatic reciprocating machine achieves the positioning of the part in the second direction during loading, there is often a small deviation. At this time, when the pusher surface of the pusher part 2432 contacts the part, only part of the pusher surface contacts the part. As the second slide plate 2422 moves, the pusher surface gradually achieves full contact with the part and pushes the part to abut against the two positioning pins 222, thereby correcting the positioning of the part in the second direction. Understandably, even when the part is pushed to abut against one of the locating pins 222, the part does not abut against the other locating pin 222. That is, the part has not yet completed the positioning correction in the second direction. Taking the abutment point of the part against one of the locating pins 222 as the rotation point, the cylinder continues to drive, so that the pusher 243 continues to push the part to rotate around the rotation point until it abuts against the other locating pin 222, thus completing the positioning correction of the part in the second direction.

[0046] In some embodiments, the component fastener 23 is provided with a plurality of mounting holes 231 spaced apart along the length direction of the component fastener 23 (e.g., ...). Figure 3 As shown in the figure, a magnetic attractor (not shown) is provided in the mounting hole 231. The magnetic attractor is preferably an electro-permanent magnet, used to attract and fix the parts. That is, when the automatic reciprocating machine is feeding, the parts are attracted to the parts fixing member 23 by the magnetic attractor. It can be understood that in this embodiment, the parts are attracted to the parts fixing member 23, and its magnetic force acts as a frictional force to ensure that during the process of the pusher 243 pushing the parts, there will be no situation where the parts cannot be pushed or the parts are misaligned due to falling off the parts fixing member 23. Of course, when the pusher 243 pushes the parts to the predetermined position, the parts fixing member 23 may also stop attracting the parts.

[0047] A detection switch (not shown in the figure) is also provided on the part fixing component 23. The detection switch is located in the mounting hole 231 and is electrically connected to the control system 25. It is used to detect whether there is material on the part fixing component 23. When material is detected, a signal is sent to the control system 25. The control system 25 starts the pushing mechanism 24 to move forward in the first direction and push the part against the two positioning pins 222 of the positioning component 22. The pushing mechanism 24 returns to the original position, realizing the bending and positioning action of the part in the first direction.

[0048] Specifically, the first operator starts the control system 25, which calls the MES bending data and starts the automatic reciprocating machine to complete the automatic loading and unloading of the parts, realizing the positioning of the parts in the second direction of the bending operation; the control system 25 automatically adjusts the bending size according to the bending data, and then starts the first drive component 211, which is driven by the lead screw transmission assembly 212 to adjust the position of the positioning pin 222. The pushing mechanism 24 pushes the parts to the bending position, realizing the positioning of the parts in the first direction of the bending operation; the control system 25 starts the bending device to perform the bending operation; finally, the bending device outputs a completion signal, the automatic reciprocating machine unloads the parts, and the control system 25 cycles through the side positioning bending operation.

[0049] In summary, this invention provides an automatic edge positioning device 200 for a longitudinal beam connecting plate and a bending machine. Utilizing a control system 25 communicating with the MES, servo drive, lead screw and guide rail transmission, and gas transmission technologies, the device achieves synchronous, automatic, and rapid online automatic edge positioning of the longitudinal beam connecting plate. This reduces the number of operators required for manual workpiece positioning by one, lowers positioning costs, reduces labor costs, and improves economic efficiency. The labor intensity is reduced from level four manual labor (heavy labor) to zero, eliminating safety hazards associated with manual operations.

[0050] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A longitudinal beam connecting plate automatic edge positioning device installed on a bending machine, the bending machine comprising a worktable, characterized in that, The longitudinal beam connecting plate automatic side positioning device comprises a transmission mechanism, a positioning assembly, a part fixing piece, a pushing mechanism, a control system and a second support, the transmission mechanism and the pushing mechanism are oppositely arranged on the two sides of the workbench, the positioning assembly is arranged at one end of the transmission mechanism close to the pushing mechanism, and the transmission mechanism can drive the positioning assembly to move along the first direction, the part fixing piece is installed on the workbench and used for adsorbing parts; the pushing mechanism is installed on the second support and used for pushing the parts against the positioning assembly, and the control system is electrically connected with the transmission mechanism and the pushing mechanism respectively; The positioning assembly comprises a fixing frame and two positioning pins, the fixing frame is connected with the transmission mechanism, and the two positioning pins are arranged on the fixing frame at intervals; The pushing mechanism comprises a second driving piece, a second sliding plate assembly and a pushing piece, the second driving piece is installed on the second support, the second sliding plate assembly is slidingly connected with the second support, the output shaft of the second driving piece is connected with one side of the second sliding plate assembly, and the other side of the second sliding plate assembly is connected with the pushing piece, so that the second sliding plate assembly drives the pushing piece to push the parts against the positioning assembly. The pushing piece comprises a fixing part installed on the second sliding plate assembly and a pushing part installed on the fixing part; when the second sliding plate assembly drives the pushing piece to push the parts, and only part of the pushing surface of the pushing part is in contact with the parts, with the movement of the second sliding plate assembly, the pushing surface gradually realizes full contact with the parts, and the parts are pushed to abut against the two positioning pins, so that the parts are positioned and corrected in the second direction.

2. The longitudinal beam web automatic edge positioning device of claim 1, wherein, A first support is further included, and the transmission mechanism is installed on the first support.

3. The longitudinal beam web automatic edge positioning device of claim 2, wherein, The transmission mechanism comprises a first driving piece, a screw rod transmission assembly and a first sliding plate assembly, the first driving piece is connected with one end of the screw rod transmission assembly, the other end of the screw rod transmission assembly is connected with one side of the first sliding plate assembly, so as to drive the first sliding plate assembly to reciprocate along the first direction, and the other side of the first sliding plate assembly is connected with the positioning assembly.

4. The longitudinal beam web automatic edge positioning device of claim 3, wherein, The screw rod transmission assembly comprises a transmission piece, a first fixing piece and a second fixing piece, the output shaft of the driving piece is connected with the transmission piece, the transmission piece and the first support are connected through the first fixing piece, and the transmission piece is connected with the first sliding plate assembly through the second fixing piece.

5. The longitudinal beam web automatic edge positioning device of claim 3, wherein, The first sliding plate assembly comprises a first guide rail and a first sliding plate, the first guide rail is arranged on the first support, one side of the first sliding plate is connected with the screw rod transmission assembly, the other side is connected with the positioning assembly, and the first sliding plate is slidingly connected with the first guide rail.

6. The longitudinal member cross member automatic edge positioning device of claim 1, wherein, The second sliding plate assembly comprises a second guide rail and a second sliding plate, the second guide rail is arranged on the second support, one side of the second sliding plate is connected with the second driving piece, the other side is connected with the pushing piece, and the second sliding plate is slidingly connected with the second guide rail.

7. The longitudinal member cross member automatic edge positioning device of claim 1, wherein, The part fixing member is provided with a magnetic member for attracting the part and a detection switch electrically connected with the control system for detecting whether the part fixing member has the part.

8. A bending machine characterized by The longitudinal beam connecting plate automatic edge positioning device is installed on the machine tool, and the workbench is arranged below the bending device, and the longitudinal beam connecting plate automatic edge positioning device is arranged beside the workbench, and the automatic reciprocating machine is used for transporting the part to the longitudinal beam connecting plate automatic edge positioning device.

Images