CN112317575A

CN112317575A - Automobile sheet metal part machining bending machine

Info

Publication number: CN112317575A
Application number: CN202110000550.3A
Authority: CN
Inventors: 姚毅博
Original assignee: Yantai Beilun Environmental Protection Technology Co ltd
Current assignee: Yantai Beilun Environmental Protection Technology Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-02-05

Abstract

The invention discloses an automobile sheet metal part machining bending machine which comprises a fixing frame and a fastening piece, wherein the fixing frame and the fastening piece are provided with a guide device, a driving device, a connecting device, a bending device and a knocking device; the utility model discloses a fixing device for fixing a vehicle, including mount, fixing frame, mount, support frame, fixing rod, fastener, the equal fixedly connected with mounting bracket in both sides of fastener is kept away from to the mount, the equal fixedly connected with bracket in mounting bracket one side, the equal fixedly connected with support frame in bracket one side position department is kept away from to the mounting bracket, the equal rotary type of support frame opposite side is connected with the bull stick. Through the cooperation of guider, drive arrangement, connecting device, bending device and knocking device, can make car sheet metal component degree of automation high at the in-process of processing of bending, reduce the change of metallic property, can get rid of the internal stress of deformation after the processing is accomplished.

Description

Automobile sheet metal part machining bending machine

Technical Field

The invention relates to the field of automobile part machining, in particular to an automobile sheet metal part machining bending machine.

Background

When an automobile sheet metal part is machined, particularly when a U-shaped part is machined, at present, a traditional bending machine or a traditional stamping process is used for a lot of workpieces, the workpieces are required to be manually placed on dies of the traditional bending machine and a traditional punching machine, the safety is low due to the fact that manual discharging is used, particularly, the danger of the punching machine is high, in the process of bending the workpieces, the workpieces are machined by fixed dies, the surface oxide layers of the workpieces are scraped, the internal stress of the workpieces in the machining process is large, the metal performance is changed, the product quality is not high, after the workpieces are machined, the internal stress of the workpieces needs to be removed, namely, machining positions are knocked or heat treatment is carried out on the workpieces, and at present, the processes need to be carried out step by step, so that the workpieces are deformed in the process of waiting for treatment, resulting in rejection.

Therefore, an automobile sheet metal part machining bending machine is provided to solve the problems.

Disclosure of Invention

The invention aims to provide an automobile sheet metal part processing bending machine, which can ensure that the automation degree of an automobile sheet metal part is high in the bending processing process, the change of metal properties is reduced, and the deformation internal stress can be removed after the processing is finished by matching a guide device, a driving device, a connecting device, a bending device and a knocking device.

In order to achieve the purpose, the invention provides the following technical scheme: a bending machine for processing automobile sheet metal parts comprises a fixing frame and a fastening piece, wherein the fixing frame and the fastening piece are provided with a guide device, a driving device, a connecting device, a bending device and a knocking device;

a fastening piece is fixedly connected to one side of the fixing frame, mounting frames are fixedly connected to two sides of the fixing frame, which are far away from the fastening piece, a bracket is fixedly connected to one side of each mounting frame, a support frame is fixedly connected to the position, which is far away from one side of each bracket, of each mounting frame, rotating rods are rotatably connected to the other sides of the support frames, and rotating frames are fixedly connected to the rotating rods;

a guide device is fixedly connected to the mounting frames on one side, is positioned between the mounting frames and is used for guiding a workpiece;

the supporting frames are respectively provided with a driving device, the driving devices are connected with the rotating rods, and the driving devices are used for driving the rotating rods to rotate;

the positions of the sides of the rotating frames, which are far away from the mounting frame, are provided with connecting devices, and the connecting devices are used for displacement work;

bending devices are arranged on one side of each connecting device, the bending devices are connected with one another, and the bending devices are used for bending a machined part;

the bending device is provided with a knocking device, and the knocking device is used for knocking the bending part of the machined part to remove internal stress generated by deformation of the machined part.

As a further improvement of the invention, the guiding device comprises an extension plate, the extension plate is fixedly connected to the mounting frame on one side, two groups of guiding frames are fixedly connected to the other side of the extension plate, universal wheel sets are arranged at positions between the guiding frames, a guiding block is fixedly connected to the guiding frame at a position far away from one side of the mounting frame, the guiding block is positioned at a position far away from the bracket, and a mold is fixedly connected to a position close to one side of the guiding block of the other group of guiding frames.

As a further improvement of the present invention, the driving device includes a rotating electrical machine, the rotating electrical machine is fixedly connected to a set of the supporting frames, and a gear transmission assembly is connected between the rotating electrical machine and the adjacent rotating rod.

As a further improvement of the present invention, the connecting device includes connecting boxes, the connecting boxes are respectively and fixedly connected to positions of the rotating frame on one side away from the mounting frame, first moving pairs are fixedly connected in the connecting boxes, a bending device is arranged between moving members of the first moving pairs, first screw rod pairs are rotatably connected in two corresponding groups of the connecting boxes, the moving members of the first screw rod pairs are connected with moving members of adjacent first moving pairs, displacement motors are respectively and fixedly connected in the connecting boxes with the first screw rod pairs, and the displacement motors are respectively connected with rotating members of adjacent first screw rod pairs.

As a further improvement of the invention, the bending device comprises an installation box, the installation box is respectively and fixedly connected to the inner sides of the moving members of the first moving pair, the installation box is internally and fixedly connected with a second moving pair, the installation box is internally and rotatably connected with a second screw pair, the moving members of the second screw pair are respectively connected with the moving members of the adjacent second moving pair, one side of the installation box is respectively and fixedly connected with a bending motor, the bending motors are respectively connected with the rotating members of the adjacent second screw pair, a group of installation boxes are internally and fixedly connected with contact switches, the moving members of the second moving pair are respectively and fixedly connected with moving frames at positions close to one side of the installation box, bending wheels are connected between the moving frames, and a knocking device is arranged between positions of the moving frames far away from one side of the installation frame.

As a further improvement of the invention, the knocking device comprises support rods, the support rods are respectively and fixedly connected to the side of the movable frame far away from the bending wheel, rotating shafts are rotatably connected to the side of the support rods near the guide block, knocking sticks are connected between the rotating shafts, elastic parts are connected between the knocking sticks and fixing parts of the rotating shafts, knocking motors are fixedly connected to one group of the support rods, output shafts of the knocking motors are connected with cams through couplings, and the cams are in contact with the knocking sticks.

As a further improvement of the invention, the gear transmission component is a bevel gear transmission.

As a further improvement of the present invention, the elastic member is a torsion spring.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the universal wheel set, the guide block and the die are adopted to guide and stabilize the workpiece, so that the temperature of the workpiece is not gathered in the bending process, the phenomenon that the metal performance is changed due to overhigh temperature caused by the traditional punching of the workpiece with the shape is avoided, and the defect of low safety caused by the fact that the workpiece needs to be manually placed on the punching table in the traditional processing is solved.

2. According to the invention, the rotary motor is adopted to drive the rotary frame to rotate so as to drive the bending device and the knocking device to rotate, so that the automation degree of the processing and bending process of the automobile sheet metal part can be increased, the bending angle does not need to be manually adjusted, the accuracy is high, and the structure of the equipment is simplified.

3. According to the invention, by adopting the mode that the first screw rod pair and the first moving pair drive the bending device to move left and right, workpieces with different thicknesses can be bent in the bending process, and the bending device can be withdrawn after the workpieces are bent, so that the defect that the oxide layer on the surfaces of the workpieces is scraped due to the fitting of the bending device on the workpieces is avoided.

4. According to the invention, the second screw pair is adopted to drive the bending wheel to move so as to bend the workpiece, so that the workpiece can be bent in a rolling manner, and the scraping of an oxide layer on the surface of the workpiece and the increase of deformation internal stress caused by the traditional bending and stamping are avoided.

5. According to the invention, the knocking device is adopted to knock the bending part of the workpiece, so that the internal deformation stress of the workpiece can be directly removed after the bending is finished, and the change and deformation of the metal performance of the workpiece after the workpiece is separated from the equipment are avoided.

Drawings

FIG. 1 is a schematic diagram of a first state of the present invention.

Fig. 2 is a sectional front view structure diagram of the invention.

Fig. 3 is a first right-view structural diagram of the present invention.

Fig. 4 is a second right-view structural diagram of the present invention.

Fig. 5 is a front view of the guiding device of the present invention.

Fig. 6 is a front view of the driving device of the present invention.

Fig. 7 is a partial front view structure diagram of the present invention.

Fig. 8 is a front view schematically showing the structure of the connecting device according to the present invention.

Fig. 9 is a front view of a bending apparatus according to the present invention.

Fig. 10 is a front view of the knocking device portion according to the present invention.

FIG. 11 is a diagram illustrating a second state of the present invention.

In the figure: 1. a fixed mount; 2. a fastener; 3. a mounting frame; 4. a bracket; 41. a support frame; 5. a rotating rod; 6. a rotating frame; 7. a guide device; 8. a drive device; 9. a connecting device; 10. a bending device; 11. a knocking device; 71. an extension plate; 72. a guide frame; 73. a universal wheel set; 74. a guide block; 75. a mold; 81. a rotating electric machine; 82. a gear drive assembly; 91. a connecting box; 92. a first sliding pair; 93. a first screw pair; 94. a displacement motor; 101. installing a box; 102. a second sliding pair; 103. a second screw pair; 104. bending the motor; 105. a contact switch; 106. a movable frame; 107. bending wheels; 111. a support bar; 112. a rotating shaft; 113. knocking the stick; 114. an elastic member; 115. knocking the motor; 116. a cam.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "fixed," "mounted," "connected," or "disposed" to another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are used merely to facilitate description of the present invention and to simplify description, and do not indicate or imply that the referenced devices or elements must have the particular orientations, configurations and operations described in the specification, and therefore are not to be considered limiting.

As a further development of the invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-11, the present invention provides a technical solution: a bending machine for processing automobile sheet metal parts comprises a fixing frame 1 and a fastening piece 2, wherein the fixing frame 1 and the fastening piece 2 are provided with a guide device 7, a driving device 8, a connecting device 9, a bending device 10 and a knocking device 11;

a fastening piece 2 is fixedly connected to one side of the fixing frame 1, mounting frames 3 are fixedly connected to two sides of the fixing frame 1, which are far away from the fastening piece 2, a bracket 4 is fixedly connected to one side of each mounting frame 3, a supporting frame 41 is fixedly connected to a position, which is far away from one side of the bracket 4, of each mounting frame 3, a rotating rod 5 is rotatably connected to the other side of each supporting frame 41, and a rotating frame 6 is fixedly connected to each rotating rod 5;

a guide device 7 is fixedly connected to the mounting frames 3 on one side, the guide device 7 is positioned between the mounting frames 3, and the guide device 7 is used for guiding a workpiece;

the supporting frames 41 are respectively provided with a driving device 8, the driving devices 8 are connected with the rotating rods 5, and the driving devices 8 are used for driving the rotating rods 5 to rotate;

the positions of the rotating frame 6, which are far away from the mounting frame 3, are provided with connecting devices 9, and the connecting devices 9 are used for displacement;

one side of each connecting device 9 is provided with a bending device 10, the bending devices 10 are connected with each other, and the bending devices 10 are used for bending a workpiece;

the bending device 10 is provided with a knocking device 11, and the knocking device 11 is used for knocking the bending part of the workpiece to remove the internal stress generated by the deformation of the workpiece.

In some embodiments of the present invention, the guiding device 7 includes an extension plate 71, the extension plate 71 is fixedly connected to the mounting frame 3 on one side, two sets of guiding frames 72 are fixedly connected to the other side of the extension plate 71, universal wheel sets 73 are disposed between the guiding frames 72, a guiding block 74 is fixedly connected to the guiding frame 72 on one side far from the mounting frame 1, the guiding block 74 is at a position far from the bracket 4, and a mold 75 is fixedly connected to one side of the guiding frame 72 close to the guiding block 74.

Through adopting universal wheelset 73, guide block 74 and mould 75 to lead to the machined part and stable mode, can make the machined part temperature can not gather at the in-process of bending, avoided the tradition to carry out the too high temperature that the punching press leads to the machined part of this type of shape to lead to the metal properties change, and solved need artifically place the machined part in traditional processing and lead to the shortcoming that the security is low on dashing the bench.

In some embodiments of the present invention, the driving device 8 includes a rotating motor 81, the rotating motor 81 is fixedly connected to a set of the supporting frames 41, and a gear assembly 82 is connected between the rotating motor 81 and the adjacent rotating rod 5.

Thereby drive swivel mount 6 through adopting rotating electrical machines 81 and rotate and drive bending device 10 and knocking device 11 and carry out the mode of rotation, can make the processing of car sheet metal component bend process automation degree, do not need the manual adjustment to bend the angle, the accuracy is high to make the simple structure of this equipment.

In some embodiments of the present invention, the connecting device 9 includes connecting boxes 91, the connecting boxes 91 are respectively and fixedly connected to a position of one side of the rotating frame 6 away from the mounting frame 3, a first moving pair 92 is fixedly connected in each connecting box 91, a bending device 10 is disposed between moving members of the first moving pair 92, a first screw pair 93 is rotatably connected in each of two corresponding groups of connecting boxes 91, the moving member of the first screw pair 93 is connected to a moving member of an adjacent first moving pair 92, a displacement motor 94 is fixedly connected in each connecting box 91 with the first screw pair 93, and the displacement motors 94 are respectively connected to rotating members of the adjacent first screw pair 93.

By adopting the mode that the first screw rod pair 93 and the first moving pair 92 drive the bending device 10 to move left and right, workpieces with different thicknesses can be bent in the bending process, the bending device 10 can be withdrawn after the workpieces are bent, and the defect that the oxide layer on the surfaces of the workpieces is scraped due to the fact that the workpieces are attached to the bending device 10 is avoided.

In some embodiments of the present invention, the bending device 10 includes mounting boxes 101, the mounting boxes 101 are respectively and fixedly connected to the inner sides of the moving members of the first moving pair 92, the installation box 101 is fixedly connected with a second sliding pair 102, the installation box 101 is rotatably connected with a second screw rod pair 103, the moving parts of the second screw pair 103 are respectively connected with the moving parts of the adjacent second moving pair 102, bending motors 104 are fixedly connected to one inner side of the installation box 101, the bending motors 104 are respectively connected with the rotating pieces of the adjacent second screw rod pairs 103, a group of the installation boxes 101 are fixedly connected with contact switches 105, the moving parts of the second moving pair 102 near the mounting frame 3 are fixedly connected with a moving frame 106, bending wheels 107 are connected between the movable frames 106, and knocking devices 11 are arranged between positions, far away from the fixed frame 1, of the movable frames 106.

Thereby through the mode that adopts the vice 103 drive bending wheel 107 of second lead screw to remove and bend the machined part, can make the process of bending of machined part roll and go on, avoid the tradition to bend and strike off the increase of scraping and deformation internal stress with the machined part surface oxide layer that the punching press leads to.

In some embodiments of the present invention, the knocking device 11 includes support rods 111, the support rods 111 are respectively and fixedly connected to a position of the movable frame 106 far away from the bending wheel 107, a rotating shaft 112 is rotatably connected to a position of the support rods 111 near the guide block 74, a knocking rod 113 is connected between the rotating shafts 112, elastic members 114 are connected between the knocking rod 113 and a fixing member of the rotating shaft 112, a knocking motor 115 is fixedly connected to one set of the support rods 111, a cam 116 is connected to an output shaft of the knocking motor 115 through a coupling, and the cam 116 is in contact with the knocking rod 113.

Through adopting knocking device 11 to beat the mode that the department of bending of machined part was strikeed, can make the machined part directly carry out getting rid of the internal stress of deformation after the completion of bending, avoid the machined part to change and warp in metal property after breaking away from equipment.

In some embodiments of the present invention, the gear assembly 82 is a bevel gear drive.

In some embodiments of the present invention, the elastic member 114 is a torsion spring.

The working principle is as follows: when parts such as automobile sheet metal parts and the like need to be bent, a workpiece can be placed on the bracket 4, the workpiece is placed between the guide devices 7, the workpiece is pushed to reach a required bending position, the connecting device 9 can be started at the moment, the connecting device 9 drives the bending device 10 to move leftwards, the distance between the bending device 10 and the guide devices 7 is the thickness of the workpiece, then the bending device 10 can be started, the bending device 10 moves from top to bottom, the bending device 10 bends the workpiece in a first stage, when the bending device 10 runs for a half period, the bending device 10 stops running, the knocking device 11 contacts with the first-stage bending position of the workpiece, the knocking device 11 can be started at the moment, and the knocking device 11 knocks the first-stage bending position of the workpiece, so as to remove the internal stress generated by the deformation of the workpiece, after the knocking device 11 knocks the workpiece, the knocking device 11 can be closed, then the driving device 8 is started, the driving device 8 drives the rotating rod 5 to rotate clockwise, the rotating rod 5 drives the rotating frame 6 to rotate clockwise by 90 degrees, so that the rotating frame 6 drives the connecting device 9, the bending device 10 and the knocking device 11 to rotate clockwise by 90 degrees, the bending device 10 can perform secondary bending on the next part, after the rotating rod 5 rotates clockwise by 90 degrees, the driving device 8 can be closed, then the bending device 10 is started again, so that the bending device 10 performs secondary bending on the position of the workpiece, and when the bending device 10 moves to the tail end, the knocking device 11 contacts the secondary bending part of the workpiece, knocking the workpiece to remove the internal stress of the secondary bending part of the workpiece; after the workpiece is bent, the driving device 8 can be controlled to run reversely, the driving device 8 drives the rotating rod 5 to rotate 90 degrees anticlockwise to reset, then the bending device 10 can be controlled to reset, the connecting device 9 can be controlled to start, the connecting device 9 drives the bending device 10 and the knocking device 11 to move rightwards, the bending device 10 is separated from contact with the workpiece, the workpiece can be moved backwards, the workpiece is withdrawn from the device, and therefore the surface of the workpiece is prevented from being affected by the contact of the bending device 10 to cause the surface oxide layer to be scraped.

A workpiece can be placed between the bracket 4 and the universal wheel set 73, and the workpiece passes through between the guide block 74 and the die 75, and when the bending device 10 bends the workpiece, the guide block 74 and the die 75 provide a fulcrum and a bending shape for the workpiece; when the workpiece is detached from the apparatus, the workpiece can be moved from between the universal wheel sets 73 to the rear side.

The rotating motor 81 can be started, and the rotating motor 81 drives the rotating rod 5 to rotate through the gear transmission assembly 82, so as to drive the rotating frame 6 to rotate.

The displacement motor 94 can be started, and the displacement motor 94 drives the first screw pair 93 to rotate, so that the moving member of the first screw pair 93 drives the moving member of the first moving pair 92 to move left and right, and the bending device 10 and the knocking device 11 are driven to move left and right, thereby changing the distance between the bending device 10 and the workpiece.

The bending motor 104 can be started, the bending motor 104 will drive the second screw pair 103 to rotate, so that the moving member of the second screw pair 103 drives the moving member of the second moving pair 102 to move downwards, so as to drive the moving frame 106 and the bending wheel 107 to move downwards, so that the bending wheel 107 bends the workpiece, when the moving member of the second screw pair 103 contacts the contact switch 105, the contact switch 105 will be triggered, the contact switch 105 will control the bending motor 104 to stop working, so as to stop the bending wheel 107 from moving downwards, at this time, the knocking device 11 can be controlled to operate, so that the knocking device 11 knocks the first-stage bent part of the workpiece to remove the internal stress deformation of the first-stage bent part; then, the installation box 101 can be rotated clockwise by 90 degrees by the rotating motor 81, and then the bending motor 104 can be controlled to be started again, so that the bending motor 104 drives the moving frame 106 and the bending wheel 107 to move downwards again to perform secondary bending on the workpiece, and after the bending is completed, the knocking device 11 can be started to knock on the secondary bending position of the workpiece to eliminate the internal deformation stress of the workpiece; after the workpiece is bent, the bending motor 104 may be controlled to operate in a reverse direction, so as to drive the bending wheel 107 to reset.

The knocking motor 115 can be started, and the knocking motor 115 drives the cam 116 to rotate counterclockwise, so that the cam 116 drives the knocking stick 113 to knock the bent part of the workpiece through the elastic part 114 to remove the deformation internal stress of the bent part.

In conclusion, through the cooperation of the guide device, the driving device, the connecting device, the bending device and the knocking device, the automation degree of the automobile sheet metal part in the bending process is high, the change of metal performance is reduced, and the deformation internal stress can be removed after the processing is finished.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile sheet metal component processing bender, includes mount (1) and fastener (2), its characterized in that: the fixed frame (1) and the fastening piece (2) are provided with a guide device (7), a driving device (8), a connecting device (9), a bending device (10) and a knocking device (11);

a fastening piece (2) is fixedly connected to one side of the fixing frame (1), mounting frames (3) are fixedly connected to two sides, far away from the fastening piece (2), of the fixing frame (1), brackets (4) are fixedly connected to one sides of the mounting frames (3), supporting frames (41) are fixedly connected to positions, far away from the brackets (4), of one sides of the mounting frames (3), rotating rods (5) are rotatably connected to the other sides of the supporting frames (41), and rotating frames (6) are fixedly connected to the rotating rods (5);

a guide device (7) is fixedly connected to the mounting rack (3) on one side, the guide device (7) is located between the mounting racks (3), and the guide device (7) is used for guiding a workpiece;

the supporting frames (41) are respectively provided with a driving device (8), the driving devices (8) are connected with the rotating rods (5), and the driving devices (8) are used for driving the rotating rods (5) to rotate;

the positions, far away from the mounting frame (3), of the rotating frame (6) are provided with connecting devices (9), and the connecting devices (9) are used for displacement;

bending devices (10) are arranged on one sides of the connecting devices (9), the bending devices (10) are connected with each other, and the bending devices (10) are used for bending a machined part;

the bending device (10) is provided with a knocking device (11), and the knocking device (11) is used for knocking the bending part of the machined part to remove internal stress generated by deformation of the machined part.

2. The automobile sheet metal part machining bending machine according to claim 1, characterized in that: guider (7) include extension plate (71), extension plate (71) fixed connection is in one side on mounting bracket (3), two sets of leading truck (72) of extension plate (71) opposite side fixedly connected with, position department between leading truck (72) all is equipped with universal wheelset (73), keeps away from mount (1) one side position department fixedly connected with guide block (74) on leading truck (72), guide block (74) are in the position department of keeping away from bracket (4), another group leading truck (72) nearly guide block (74) one side position department fixedly connected with mould (75).

3. The automobile sheet metal part machining bending machine according to claim 1, characterized in that: drive arrangement (8) include rotating electrical machines (81), rotating electrical machines (81) fixed connection is in a set of on support frame (41), rotating electrical machines (81) and adjacent be connected with gear drive subassembly (82) between bull stick (5).

4. The automobile sheet metal part machining bending machine according to claim 1, characterized in that: connecting device (9) are including connecting box (91), connecting box (91) respectively fixed connection in mounting bracket (3) one side position department is kept away from in swivel mount (6), equal first sliding pair (92) of fixedly connected with in connecting box (91), be equipped with bending device (10) between the moving member of first sliding pair (92), corresponding two sets of equal rotary type is connected with first lead screw pair (93) in connecting box (91), the moving member of first lead screw pair (93) and adjacent the moving member of first sliding pair (92) is connected, has equal fixedly connected with displacement motor (94) in connecting box (91) of first lead screw pair (93), displacement motor (94) are connected with the rotation piece of adjacent first lead screw pair (93) respectively.

5. The automobile sheet metal part machining bending machine according to claim 1, characterized in that: the bending device (10) comprises an installation box (101), the installation box (101) is fixedly connected to the inner side of a moving part of the first moving pair (92) respectively, the installation box (101) is internally and fixedly connected with a second moving pair (102), the installation box (101) is internally and rotatably connected with a second screw pair (103), the moving part of the second screw pair (103) is connected with the adjacent moving part of the second moving pair (102) respectively, one side of the installation box (101) is fixedly connected with a bending motor (104), the bending motor (104) is connected with the adjacent rotating part of the second screw pair (103) respectively, a group of the moving parts (105) are fixedly connected with the installation box (101), a moving frame (106) is fixedly connected to the position of one side, close to the installation frame (3), of the second moving pair (102), and a bending wheel (107) is connected between the moving frames (106), a knocking device (11) is arranged between the positions of one side of the movable frame (106) far away from the fixed frame (1).

6. The automobile sheet metal part machining bending machine according to claim 5, characterized in that: knocking device (11) includes bracing piece (111), bracing piece (111) respectively fixed connection in remove frame (106) and keep away from bend wheel (107) one side position department, bracing piece (111) nearly guide block (74) one side position department equal rotary type is connected with pivot (112), be connected with between pivot (112) and strike rod (113), strike rod (113) with all be connected with elastic component (114), a set of fixedly connected with strikes motor (115) on bracing piece (111), strike and have cam (116) through the coupling joint on motor (115) output shaft, cam (116) with strike rod (113) contact.

7. The automobile sheet metal part machining bending machine according to claim 3, characterized in that: the gear transmission component (82) is in bevel gear transmission.

8. The automobile sheet metal part machining bending machine according to claim 6, characterized in that: the elastic piece (114) is a torsion spring.