Bending device of case

By introducing an adjusting groove and slider structure into the chassis bending device, combined with positioning components and cylinder drive, the problem of positional offset of the chassis plate during bending is solved, achieving high-precision chassis plate bending and improving the quality of finished products.

CN224010917UActive Publication Date: 2026-03-20DEEP CUSTOMIZATION TECHNOLOGY (CHENGDU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing chassis bending device suffers from low bending accuracy and poor finished product quality due to the misalignment of the chassis plate during operation.

Method used

By setting an adjusting groove and a slider on the support base, the slider slides in conjunction with the adjusting groove, and the bending plate on the slider can move along the direction of the adjusting groove, ensuring that one end of the bending plate always abuts against one side of the chassis plate. The position of the slider is fixed by the positioning component. Combined with the use of the lifting base and the bending cylinder, precise bending is achieved.

Benefits of technology

This improved the bending accuracy of the chassis panel, ensuring the quality of the finished product. It enabled the chassis panel to bend from the position where it meets the bending plate, avoiding deviation and improving processing accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224010917U_ABST
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Abstract

The utility model relates to a machine case bending device which comprises a workbench, a centering air cylinder is arranged on the lower side of the workbench, two output shafts of the centering air cylinder are fixed to a first clamping base and a second clamping base respectively, two sets of screw rods synchronously rotating through a transmission mechanism are arranged on the workbench, and a lifting base is matched with the two sets of screw rods in a threaded mode. A supporting seat is fixed to one side of the lifting seat, adjusting sliding grooves are formed in two side plates of the supporting seat, sliding blocks are arranged in the adjusting sliding grooves, first positioning assemblies are arranged between the outer sides of the sliding blocks and the side plates, rotating seats are arranged on the inner sides of the sliding blocks through bearings, second positioning assemblies are arranged between the rotating seats and the sliding blocks, and a bending plate is jointly supported on the two rotating seats. And an output shaft is arranged on the lifting base and fixed to the push plate, so that the bending plate can move in the direction of the adjusting sliding groove, then after the inclination angle of the bending plate is adjusted, one end of the bending plate can abut against one side of the case plate all the time, the bending precision of the case plate is guaranteed, and the finished product quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a casing processing technical field, concretely relates to a casing's bending device. BACKGROUND

[0002] The server casing is mainly used for protecting electronic components, and in the production and processing of the casing, the bending operation needs to be carried out according to the shape designed by it, so as to preset the bending angle of the casing shell for the convenience of adjusting. In the prior art, a support column is fixedly connected to the top of the workbench at four corners, the top of the support column is fixedly connected with a top plate, the top surface of the workbench is fixedly connected with a first hydraulic pipe column and a second hydraulic pipe column at both ends respectively, the bottom end of the workbench is fixedly connected with a hydraulic tank, the bottom end of the hydraulic tank is provided with a hydraulic drive motor, the hydraulic tank is in communication with the first hydraulic pipe column and the second hydraulic pipe column, the telescopic end of the first hydraulic telescopic rod is fixedly connected with a clamping seat, the hydraulic drive motor can drive the clamping seat and the pushing block to move in the form of hydraulic drive, so that the casing shell can be bent, and the presetting of the bending angle can be carried out through the setting of the material blocking device, so that the casing shell can be directly bent to the preset angle without manual control, and the bending speed is fast and the accuracy is high. In this way, the inclination angle of the baffle is adjusted by rotating the adjusting screw to control the lifting of the lower pull rod, and the bending angle is adjusted. However, when the casing plate is bent, the clamping seat clamps the casing plate, and the position of the casing plate remains fixed. During the rotation and inclination of the baffle, the side of the baffle close to the casing plate will deviate from the original abutting position due to the rotation, that is, the side of the baffle will deviate from the bending position of the casing plate. When the pushing block pushes the casing plate to bend, the casing plate will first bend from the upper end position of the clamping part of the clamping seat, and then the upper end of the casing plate will abut on the baffle after deviating, and the upper end of the casing plate will be bent again, so that the quality of the bent casing plate is poor and the processing precision is low. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the utility model provides a casing's bending device, which is characterized by the following technical scheme: an adjusting sliding groove is arranged on the support seat, a bending plate and a rotating seat are arranged on a sliding block, and the sliding block and the adjusting sliding groove are in sliding fit, so that the bending plate can move along the direction of the adjusting sliding groove, and then the bending plate moves towards the casing plate after adjusting the inclination angle of the bending plate, so that one end of the bending plate can always abut on one side of the casing plate, and the casing plate only starts to bend from the position abutting on the bending plate, thereby ensuring the bending precision of the casing plate and improving the quality of the finished product.

[0004] The utility model provides a kind of bending device of case for solving above-mentioned technical problem, including workbench, the centring cylinder is equipped in the lower side of workbench, the two output shafts of centring cylinder are fixed with first clamping seat, second clamping seat respectively, let go of strip hole for the output shaft is equipped on workbench, two groups of screw rod that are rotated synchronously by transmission mechanism are equipped on workbench, a lifting seat is threadedly cooperated on two groups of screw rod, the side of lifting seat is fixed with support seat, adjusting sliding groove is equipped on the two side plates of support seat, sliding block is equipped in adjusting sliding groove, first positioning assembly is equipped between the outside of sliding block and side plate, the inside of sliding block is equipped with rotating seat by bearing, second positioning assembly is equipped between rotating seat and sliding block, a bending plate is commonly supported on two rotating seats, the other side of lifting seat is equipped with bending cylinder, the output shaft of bending cylinder is fixed with push plate.

[0005] Further, the first positioning assembly includes a first positioning plate fixed to the outside of the sliding block, at least one first positioning rod is provided on the first positioning plate, one end of the first positioning rod is movably inserted through a first guide hole on the first positioning plate and cooperates with a plurality of first positioning holes on the side plate, the other end is fixed with a first pull plate, a first elastic member is provided between the first pull plate and the first positioning plate, and the two ends of the first elastic member are respectively fixed with the first pull plate and the first positioning plate.

[0006] Further, a first let-go groove is provided on one side of the first positioning plate close to the first pull plate, a first clamping rod is rotatably provided on the first pull plate, and a first clamping block with the same shape as the first let-go groove is provided on one end of the first clamping rod.

[0007] Further, a first knob is provided on one side of the first clamping rod away from the first clamping block, a first stop block is provided on the outside of the first knob, and a second stop block cooperates with the first stop block on the first pull plate.

[0008] Further, the first positioning rod is provided with two groups and is symmetrically arranged along the upper and lower of the adjusting sliding groove, and a plurality of first positioning holes are uniformly arranged along the axial direction of the adjusting sliding groove.

[0009] Further, the second positioning assembly includes a second positioning plate fixed to the inside of the sliding block, at least one second positioning rod is provided on the second positioning plate, one end of the second positioning rod is movably inserted through a second guide hole on the second positioning plate and cooperates with a second positioning hole on the rotating seat, the other end is rotatably connected with a second pull plate, a second elastic member is provided between the second pull plate and the second positioning plate, and the two ends of the second elastic member are respectively fixed with the second pull plate and the second positioning plate, a positioning protrusion is provided on the second positioning rod, and a let-go groove cooperates with the positioning protrusion on the inner circumferential wall of the second guide hole.

[0010] Further, the rotating seat is provided with a pointer, and the second positioning plate is provided with a scale.

[0011] Further, the transmission mechanism comprises a first motor, a driving bevel gear corresponding to the screw rod is arranged on an output shaft of the first motor, and a transmission bevel gear meshing with the driving bevel gear is arranged at a bottom end of the screw rod.

[0012] Further, the workbench is provided with a support, and two sides of the lifting seat are slidably connected with the support; and one side of the bending cylinder is slidably connected with the support.

[0013] Further, the sliding block is provided with a mounting groove, a ball is arranged in the mounting groove, and a rolling groove in rolling cooperation with the ball is arranged on an inner side wall of the adjusting sliding groove.

[0014] The workbench is provided with a centering cylinder, and two output shafts of the centering cylinder are fixed with the first clamping seat and the second clamping seat respectively; the gap strip hole is used for allowing the output shafts to move; the centering cylinder drives the first clamping seat and the second clamping seat to move close to each other to clamp and fix the case plate, so that the case plate is kept stable; two groups of screw rods are synchronously rotated to drive the lifting seat to move up and down on the workbench, so that the height of the bending plate and the push plate on the lifting seat is adjusted, and the bending position of the case plate is adjusted; one side of the lifting seat is fixed with a supporting seat, the supporting seat is provided with an adjusting sliding groove, the sliding block is slid in the adjusting sliding groove, the bending plate on the sliding block is driven to move close to or away from the case plate, and then the inclination angle of the bending plate is adjusted, and one end of the bending plate is still abutted against one side of the case plate, so that the case plate is bent from the abutted position of the bending plate; the first positioning assembly arranged between the outer side of the sliding block and the side plate is used for positioning the position of the sliding block, so that the position of the bending plate is fixed, and the bending plate can be kept in the state of abutting against one side of the case plate; the inner side of the sliding block is provided with the rotating seat through a bearing, the two rotating seats commonly support one bending plate, the rotating seat is rotated relative to the sliding block, the inclination angle of the bending plate is adjusted, the second positioning assembly arranged between the rotating seat and the sliding block is used for positioning the inclination angle of the bending plate, so that the inclination angle of the bending plate is kept stable; the bending cylinder is arranged at the other side of the lifting seat, and the output shaft of the bending cylinder is telescopic, so that the upper end of the case plate is pushed to bend towards the bending plate.

[0015] In summary, the utility model discloses, through the rotation of the rotation seat, the inclination angle of the folding bending plate is adjusted, and then the bending angle of the machine case plate is adjusted, and the inclination angle of the folding bending plate can be kept stable through the setting of the second positioning assembly, and then the bending angle precision is guaranteed, and the sliding block can also slide in the adjusting sliding groove, and one end of the folding bending plate is abutted on one side of the machine case plate, the machine case plate is guaranteed to be bent from the position abutted on the folding bending plate, and the position of the sliding block in the adjusting sliding groove is kept fixed through the setting of the first positioning assembly, the folding bending plate is prevented from moving in the bending process, and the bending quality is guaranteed.

[0016] The utility model will be further described in connection with the drawings and specific embodiments. DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the utility model;

[0018] Figure 2 It is the structure schematic drawing of the folding bending plate of the utility model;

[0019] Figure 3 It is Figure 2 The detail enlarged view of A of

[0020] Figure 4 It is the detail enlarged view of B of Figure 2

[0021] In the drawings: 1-workbench, 11-give way strip hole, 12-bracket, 2-centering cylinder, 21-first clamping seat, 22-second clamping seat, 3-screw, 31-first motor, 32-driving bevel gear, 33-transmission bevel gear, 4-lifting seat, 5-supporting seat, 51-side plate, 511-first positioning hole, 52-adjusting sliding groove, 521-rolling groove, 53-sliding block, 531-installation groove, 532-rolling ball, 54-rotation seat, 541-second positioning hole, 542-needle, 55-folding bending plate, 6-bending cylinder, 61-push plate, 7-first positioning assembly, 71-first positioning plate, 711-first guide hole, 712-first give way groove, 72-first positioning rod, 73-first pull plate, 731-second stop block, 74-first elastic piece, 75-first clamping rod, 751-first clamping block, 752-first knob, 753-first stop block, 8-second positioning assembly, 81-second positioning plate, 811-second guide hole, 812-give way groove, 82-second positioning rod, 821-positioning protruding block, 83-second pull plate, 84-second elastic piece. PREFERRED EMBODIMENT

[0022] Referring to the drawings, the specific implementation scheme of the utility model will be described in detail.

[0023] Referring to Figures 1 to 4 ​The utility model provides a kind of bending device of case, including workbench 1, the lower side of workbench 1 is equipped with centering cylinder 2, the two output shafts of centering cylinder 2 are fixed with first clamping seat 21, second clamping seat 22 respectively, the workbench 1 is equipped with the clearance strip hole 11 that the output shaft is accommodated, centering cylinder 2 drives first clamping seat 21 and second clamping seat 22 mutually close to case board and is clamped, fixed, so that case board keeps stable.

[0024] Two groups of screw rod 3 are equipped on the workbench 1 and rotate synchronously by transmission mechanism, the lifting seat 4 is threadedly connected on the two groups of screw rod 3, the lifting seat 4 can be lifted on the workbench 1 by the synchronous rotation of the two groups of screw rod 3, and then the height of the bending plate 55 and the push plate 61 on the lifting seat 4 is adjusted, so as to adjust the bending position of the case board.

[0025] The bottom end of the screw rod 3 is equipped with the transmission bevel gear 33 engaged with the drive bevel gear 32, the synchronous rotation of the two drive bevel gears 32 is driven by the first motor 31, and then the synchronous rotation of the two screw rods 3 is driven by the two transmission bevel gears 33, the synchronous lifting of the two sides of the lifting seat 4 is realized, and the stability of the lifting seat 4 during movement is ensured.

[0026] The outer side of the sliding block 53 is equipped with the first positioning assembly 7 between the side plate 51, the bending plate 55 on the sliding block 53 can be driven to move towards or away from the case board by the sliding of the sliding block 53 in the adjusting sliding groove 52, and then the end of the bending plate 55 can be abutted on one side of the case board after adjusting the inclination angle of the bending plate 55, so that the case board is bent from the abutting position with the bending plate 55 during bending.

[0027] Specifically, the first positioning assembly 7 comprises a first positioning plate 71 fixed outside the sliding block 53, at least one first positioning rod 72 is arranged on the first positioning plate 71, one end of the first positioning rod 72 is movably arranged through a first guide hole 711 on the first positioning plate 71 and matched with a plurality of first positioning holes 511 on the side plate 51, preferably, the first positioning rod 72 is arranged in two groups and symmetrically arranged along the upper and lower of the adjusting sliding groove 52, a plurality of first positioning holes 511 are uniformly arranged along the axial direction of the adjusting sliding groove 52, so as to ensure the stability of the structure. The other end of the first positioning rod 72 is fixed with a first pull plate 73, a first elastic member 74 is arranged between the first pull plate 73 and the first positioning plate 71, and the two ends of the first elastic member 74 are respectively fixed with the first pull plate 73 and the first positioning plate 71. At this time, when it is necessary to adjust the position of the bending plate 55, the first pull plate 73 is pulled to drive the first positioning rod 72 to move away from the first positioning hole 511, the first elastic member 74 is stretched, the first positioning rod 72 is separated from the first positioning hole 511 on the side plate 51, so that the sliding block 53 can slide in the adjusting sliding groove 52, and then the sliding block 53 drives the bending plate 55 on it to move along the axial direction of the adjusting sliding groove 52; when the sliding block 53 moves to the appropriate position, the first pull plate 73 is loosened, the first elastic member 74 drives the first pull plate 73 to move to the first positioning plate 71, and then drives the first positioning rod 72 to insert into the corresponding first positioning hole 511, so as to fix the position of the sliding block 53.

[0028] Further, one side of the first positioning plate 71 close to the first pull plate 73 is provided with a first let-position slot 712, the first pull plate 73 is rotatably provided with a first clamping rod 75, one end of the first clamping rod 75 is provided with a first clamping block 751 consistent with the shape of the first let-position slot 712. In this way, since the first clamping rod 75 is rotatably connected with the first pull plate 73, when the first pull plate 73 moves away from the first positioning plate 71, the first clamping rod 75 moves away from the first let-position slot 712 with the first pull plate 73 and the first clamping block 751, then rotates the first clamping rod 75 to drive the first clamping block 751 to rotate, so that the first clamping block 751 is misaligned with the first let-position slot 712. At this time, when the first pull plate 73 is released, the first clamping block 751 will abut on the slot of the first let-position slot 712, so that the first pull plate 73 cannot move towards the first positioning plate 71, and thus the first positioning rod 72 cannot be inserted into the first positioning hole 511, that is, the position of the bending plate 55 can be moved after the first pull plate 73 is released, which is convenient for operation. Further, one side of the first clamping rod 75 away from the first clamping block 751 is provided with a first knob 752, the outer side of the first knob 752 is provided with a first stop block 753, and the first pull plate 73 is provided with a second stop block 731 matched with the first stop block 753. At this time, the first knob 752 is convenient for rotating the first clamping rod 75, and the cooperation of the first stop block 753 and the second stop block 731 is convenient for positioning the rotation angle of the first clamping rod 75, when the first stop block 753 and the second stop block 731 abut on each other, the first clamping block 751 is aligned with the first let-position slot 712, at this time, when the first pull plate 73 is released, the first clamping block 751 can be inserted into the first let-position slot 712, and thus the first pull plate 73 can be moved towards the first positioning plate 71; when the first stop block 753 and the second stop block 731 are misaligned, the first clamping block 751 is misaligned with the first let-position slot 712, and the first clamping block 751 abuts on the slot of the first let-position slot 712, so that the first pull plate 73 cannot move towards the first positioning plate 71.

[0029] The inner side of the sliding block 53 is provided with a rotating seat 54 through a bearing, and a second positioning assembly 8 is arranged between the rotating seat 54 and the sliding block 53. Two rotating seats 54 commonly support a bending plate 55. When the rotating seat 54 rotates relative to the sliding block 53, the inclination angle of the bending plate 55 can be adjusted. The second positioning assembly 8 arranged between the rotating seat 54 and the sliding block 53 is used for positioning the inclination angle of the bending plate 55, so that the inclination angle of the bending plate 55 remains stable. Specifically, the second positioning assembly 8 includes a second positioning plate 81 fixed to the inner side of the sliding block 53. At least one second positioning rod 82 is arranged on the second positioning plate 81. One end of the second positioning rod 82 is movably arranged through a second guide hole 811 on the second positioning plate 81 and matched with a second positioning hole 541 on the rotating seat 54. The other end of the second positioning rod 82 is rotatably connected with a second pull plate 83. A second elastic member 84 is arranged between the second pull plate 83 and the second positioning plate 81. The two ends of the second elastic member 84 are fixed to the second pull plate 83 and the second positioning plate 81 respectively. A positioning protrusion 821 is arranged on the second positioning rod 82. A give-way groove 812 matched with the positioning protrusion 821 is arranged on the inner circumferential wall of the second guide hole 811. Further, a pointer 542 is arranged on the circumferential wall of the rotating seat 54. An angle scale is arranged on the second positioning plate 81. Through the cooperation of the pointer 542 and the angle scale, the inclination angle of the bending plate 55 can be accurately controlled. At this time, when the inclination angle of the inclination plate needs to be adjusted, the second pull plate 83 is pulled to move away from the second positioning plate 81, so that the second elastic member 84 is stretched, and the second positioning rod 82 is driven to be separated from the second positioning hole 541 on the rotating seat 54. The positioning protrusion 821 can be disengaged from the give-way groove 812 by rotating the second positioning rod 82, so that the positioning protrusion 821 abuts against the side wall of the second positioning plate 81 to limit the return movement of the second pull plate 83, so that the second positioning rod 82 remains separated from the second positioning hole 541. The rotating seat 54 can rotate relative to the second positioning plate 81, and then drive the bending plate 55 on the rotating seat 54 to rotate, so as to adjust the inclination angle of the bending plate 55. It is not necessary to continuously pull the second pull plate 83 while adjusting the angle of the bending plate 55, which is convenient to operate. Of course, a second knob can also be arranged on the side away from the second positioning plate 81 of the second positioning rod 82. A third stop block is arranged on the second knob. A fourth stop block is arranged on the second positioning plate 81. The third stop block and the fourth stop block are matched to position the positioning protrusion 821 and the give-way groove 812, so as to determine whether the positioning protrusion 821 is disengaged from the give-way groove 812 or aligned,

[0030] The other side of the lifting seat 4 is provided with a bending cylinder 6, one side of the bending cylinder 6 is slidably connected with the support 12 to improve the stability of the bending cylinder 6, the output shaft of the bending cylinder 6 is fixed with a push plate 61, when the output shaft of the bending cylinder 6 is telescopic, the push plate 61 is driven to be telescopic, and the upper end of the push plate 61 is bent to the bending plate 55.

[0031] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, a person skilled in the art can combine and combine different embodiments or examples described in the present specification and the features of different embodiments or examples without contradiction.

[0032] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A chassis bending device, characterized in that, The system includes a worktable (1), with a centering cylinder (2) located on its underside. The two output shafts of the centering cylinder (2) are fixed to a first clamping seat (21) and a second clamping seat (22), respectively. The worktable (1) is provided with clearance slots (11) to allow space for the output shafts. The workbench (1) is provided with two sets of screws (3) that rotate synchronously through a transmission mechanism. A lifting seat (4) is threaded onto the two sets of screws (3). A support seat (5) is fixed on one side of the lifting seat (4). An adjusting groove (52) is provided on the two side plates (51) of the support seat (5). A slider (53) is provided in the adjusting groove (52). A first positioning component (7) is provided between the outer side of the slider (53) and the side plate (51). A rotating seat (54) is provided on the inner side of the slider (53) through a bearing. A second positioning component (8) is provided between the rotating seat (54) and the slider (53). A bending plate (55) is supported on both rotating seats (54). A bending cylinder (6) is provided on the other side of the lifting seat (4). The output shaft of the bending cylinder (6) is fixed to the push plate (61).

2. The chassis bending device according to claim 1, characterized in that, The first positioning component (7) includes a first positioning plate (71) fixed to the outside of the slider (53). The first positioning plate (71) is provided with at least one first positioning rod (72). One end of the first positioning rod (72) moves through the first guide hole (711) on the first positioning plate (71) and cooperates with a plurality of first positioning holes (511) on the side plate (51). The other end is fixed to the first pull plate (73). A first elastic member (74) is provided between the first pull plate (73) and the first positioning plate (71). The two ends of the first elastic member (74) are fixed to the first pull plate (73) and the first positioning plate (71) respectively.

3. The chassis bending device according to claim 2, characterized in that, The first positioning plate (71) has a first clearance groove (712) on one side near the first pull plate (73), and the first pull plate (73) has a first locking rod (75) rotatably mounted on it. One end of the first locking rod (75) has a first locking block (751) with the same shape as the first clearance groove (712).

4. The chassis bending device according to claim 3, characterized in that, The first lever (75) has a first knob (752) on the side away from the first lever (751), a first stop (753) is provided on the outside of the first knob (752), and a second stop (731) is provided on the first pull plate (73) to cooperate with the first stop (753).

5. The chassis bending device according to claim 2, characterized in that, The first positioning rod (72) is provided in two sets and is arranged symmetrically up and down along the adjustment slide (52), and a plurality of first positioning holes (511) are evenly arranged along the axial direction of the adjustment slide (52).

6. The chassis bending device according to claim 1, characterized in that, The second positioning component (8) includes a second positioning plate (81) fixed to the inner side of the slider (53). The second positioning plate (81) is provided with at least one second positioning rod (82). One end of the second positioning rod (82) moves through the second guide hole (811) on the second positioning plate (81) and cooperates with the second positioning hole (541) on the rotating seat (54). The other end is rotatably connected to the second pull plate (83). A second elastic member (84) is provided between the second pull plate (83) and the second positioning plate (81). The two ends of the second elastic member (84) are fixed to the second pull plate (83) and the second positioning plate (81) respectively. The second positioning rod (82) is provided with a positioning protrusion (821). The inner peripheral wall of the second guide hole (811) is provided with a clearance groove (812) that cooperates with the positioning protrusion (821).

7. The chassis bending device according to claim 6, characterized in that, The rotating seat (54) has a pointer (542) on its peripheral wall, and the second positioning plate (81) has an angle disc.

8. The chassis bending device according to claim 1, characterized in that, The transmission mechanism includes a first motor (31), the output shaft of the first motor (31) is provided with a drive bevel gear (32) corresponding to the screw (3), and the bottom end of the screw (3) is provided with a transmission bevel gear (33) that meshes with the drive bevel gear (32).

9. The chassis bending device according to claim 1, characterized in that, The workbench (1) is provided with a support (12), the two sides of the lifting seat (4) are slidably connected to the support (12), and one side of the bending cylinder (6) is slidably connected to the support (12).

10. The chassis bending device according to claim 1, characterized in that, The slider (53) is provided with a mounting groove (531), and a ball (532) is provided in the mounting groove (531). The inner side wall of the adjusting groove (52) is provided with a rolling groove (521) that rolls with the ball (532).